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CN117734910A - Reactant tank for circulating type scuba gear and use state monitoring method - Google Patents

Reactant tank for circulating type scuba gear and use state monitoring method Download PDF

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Publication number
CN117734910A
CN117734910A CN202311273458.XA CN202311273458A CN117734910A CN 117734910 A CN117734910 A CN 117734910A CN 202311273458 A CN202311273458 A CN 202311273458A CN 117734910 A CN117734910 A CN 117734910A
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China
Prior art keywords
carbon dioxide
generating agent
oxygen generating
absorbent
oxygen
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CN202311273458.XA
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Chinese (zh)
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CN117734910B (en
Inventor
狄帅
顾靖华
柳初萌
王楠
吴冬华
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Chinese Peoples Liberation Army Naval Characteristic Medical Center
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Chinese Peoples Liberation Army Naval Characteristic Medical Center
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Priority to CN202311273458.XA priority Critical patent/CN117734910B/en
Publication of CN117734910A publication Critical patent/CN117734910A/en
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Abstract

The invention discloses a reactant tank for a circulating type scuba, wherein carbon dioxide exhaled by a diver firstly carries out chemical reaction with an oxygen generating agent in an oxygen generating agent tank body to generate oxygen, then the carbon dioxide which does not carry out chemical reaction with the oxygen generating agent and the generated oxygen flow into an absorbent tank body, the carbon dioxide is absorbed by a carbon dioxide absorbent in the absorbent tank body, and the generated oxygen flows into an air suction pipeline of the circulating type scuba through a connecting pipe at the top of an absorbent chamber to supply oxygen for the diver. The invention also designs a method for monitoring the use state of the reactant in the reactant tank, which can detect whether the carbon dioxide absorbent in the tank body is effective or not and whether the oxygen generating agent is effective or not before diving, and ensure that the carbon dioxide absorbent and the oxygen generating agent which are filled in the tank body before diving are effective; the use states of the carbon dioxide absorbent and the oxygen generating agent in the tank body can be continuously detected in the diving process, and different warnings are given to divers based on different use states.

Description

Reactant tank for circulating type scuba gear and use state monitoring method
Technical Field
The invention relates to the technical field of scuba, in particular to a reactant tank for circulating scuba and a monitoring method for monitoring the use states of an oxygen generating agent and a carbon dioxide absorbent in the reactant tank.
Background
The circulating diving breathing apparatus has the characteristics of long underwater working time, good concealment and high gas utilization rate, and is widely applied to technical diving, scientific investigation diving, cave diving and military diving. The working principle of the circulating type scuba is that the gas exhaled by the diver can be inhaled by the carbon dioxide absorbent tank to remove carbon dioxide and then enter the breathing circuit again for breathing by the diver. When the existing diver breathes by using the circulating scuba, carbon dioxide exhaled by the diver is generally absorbed by the carbon dioxide absorbent in the carbon dioxide absorbent tank through the carbon dioxide absorbent tank, and the absorbed carbon dioxide is wasted.
The inventor considers whether the carbon dioxide exhaled by the diver can be changed into valuable, and after research, the inventor proposes a technology which utilizes an oxygen generating agent to convert the carbon dioxide exhaled by the diver into oxygen after chemical reaction, and provides the oxygen for breathing of the diver, and the redundant carbon dioxide can be absorbed by a carbon dioxide absorbent. And the existing exhaling inlet is communicated with the middle position of the top of the carbon dioxide absorbent tank, so that most of carbon dioxide in the breathing inlet reacts with the carbon dioxide absorbent in the middle position in the carbon dioxide absorbent tank, and the carbon dioxide absorbent in the carbon dioxide absorbent tank, which is slightly far away from the middle position, is rarely used, and the carbon dioxide absorbent in the carbon dioxide absorbent tank is not fully utilized, so that the waste of the carbon dioxide absorbent is caused. Based on the above, the inventor has found that an oxygen generating agent tank and a carbon dioxide absorbent tank are designed as an integrated structure, and can make full use of the oxygen generating agent and the carbon dioxide absorbent and monitor the use state of the oxygen generating agent and the use state of the carbon dioxide absorbent in the oxygen generating agent tank.
Disclosure of Invention
The invention provides a reactant tank for circulating type scuba diving and a using state monitoring method thereof, aiming at the problems and the defects existing in the prior art.
The invention solves the technical problems by the following technical proposal:
the invention provides a reactant tank for a circulating type diving breathing apparatus, which is characterized by comprising an oxygen generating tank body, wherein the cross section of the oxygen generating tank body is rectangular, an oxygen generating tank cover with an inverted concave cross section is detachably fixed at the top of the oxygen generating tank body, a first gap is arranged between the inner bottom of the oxygen generating tank cover and the top end of the oxygen generating tank body, an expiration inlet is penetrated and fixed at the middle position of the top of the oxygen generating tank cover, the top end of the expiration inlet is communicated with an expiration pipeline of the circulating type diving breathing apparatus, the bottom end of the expiration inlet is flush with the inner bottom of the oxygen generating tank cover, a first carbon dioxide concentration sensor is fixed in the expiration inlet, a porous plate is fixed at the top end of the oxygen generating tank body, and the porous plate is arranged to be capable of passing gas, so that an oxygen generating agent in an oxygen generating chamber in the oxygen generating tank body cannot flow into the expiration inlet, the expiration inlet is communicated with the oxygen generating chamber through the first gap and the porous plate, and the aperture of the oxygen generating tank body is capable of passing gas, and the oxygen generating agent cannot pass through the porous plate.
The oxygen generating agent tank body is coaxially fixed with an absorbent tank body outside the oxygen generating agent tank body, the section of the absorbent tank body is rectangular and is positioned at the left side and the right side of the section of the oxygen generating agent tank body, a second gap is reserved between the opening position of the bottom of the absorbent tank body and the outer bottom of the oxygen generating agent tank body, a cylindrical partition plate is fixed at the outer bottom of the oxygen generating agent tank body, the inner diameter of the cylindrical partition plate is equal to the inner diameter of the oxygen generating agent tank body, the height of the cylindrical partition plate is equal to the height of the second gap, the wall of the cylindrical partition plate is of a porous structure, the pore diameter is set to be through which gas can pass, but carbon dioxide absorbent can not pass, a plurality of second carbon dioxide concentration sensors are uniformly fixed at the outer bottom of the oxygen generating agent tank body and are positioned in the cylindrical partition plate, the bottom detachably of the absorbent tank body is fixed with the absorbent tank cover, the cross section of the absorbent tank cover is concave, so that the bottom of the absorbent tank body is sealed, the bottom of the cylindrical partition plate is just contacted with the absorbent tank cover at the moment, an absorbent cavity in the absorbent tank body is communicated with an oxygen generating cavity through a porous structure of the cylindrical partition plate and a porous structure of the bottom of the oxygen generating tank body, a plurality of connecting pipes are uniformly inserted into the top of the absorbent cavity along the circumferential direction, each connecting pipe is communicated with an air suction pipeline of the circulating type scuba, and a third carbon dioxide concentration sensor is fixed in each connecting pipe.
The first carbon dioxide concentration sensor is used for detecting the carbon dioxide concentration in the expiration inlet as a first carbon dioxide concentration value and transmitting the first carbon dioxide concentration value to the controller.
Each of the second carbon dioxide concentration sensors is configured to detect a carbon dioxide concentration after passing through the oxygen-generating chamber as a second carbon dioxide concentration value and transmit the second carbon dioxide concentration value to the controller.
Each of the third carbon dioxide concentration sensors is configured to detect a carbon dioxide concentration after passing through the absorbent chamber as a third carbon dioxide concentration value and transmit the third carbon dioxide concentration value to the controller.
The further optimized technical scheme is that the oxygen generating agent tank cover is of a hollow structure, the controller is arranged in the oxygen generating agent tank cover, and a carbon dioxide absorbent testing control key, an oxygen generating agent testing control key and an alarm are embedded on the upper surface of the oxygen generating agent tank cover;
the carbon dioxide absorbent testing control key is used for a user to send out a carbon dioxide absorbent testing instruction;
the oxygen generating agent test control key is used for a user to send out an oxygen generating agent test instruction;
testing:
preconditions are: only the absorbent chamber is filled with carbon dioxide absorbent, the oxygen generating agent chamber is not filled with oxygen generating agent, and the diver breathes with the breathing mask;
The controller is used for controlling the second carbon dioxide concentration sensor and the third carbon dioxide concentration sensor to start working after receiving the carbon dioxide absorbent testing instruction, judging whether the difference value between one of the second carbon dioxide concentration values and one of the third carbon dioxide concentration values is larger than a second set difference value, if so, indicating that the carbon dioxide absorbent can normally absorb carbon dioxide, that the carbon dioxide absorbent is effective, and if not, indicating that the carbon dioxide absorbent hardly absorbs carbon dioxide, that the carbon dioxide absorbent is ineffective, and controlling the alarm to send out warning information for replacing the carbon dioxide absorbent until the replaced carbon dioxide absorbent is tested to be effective;
preconditions are: then the oxygen generating agent chamber is filled with oxygen generating agent, and the diver breathes with the breathing mask;
the controller is used for controlling the first carbon dioxide concentration sensor and the second carbon dioxide concentration sensor to start working after receiving the oxygen generating agent test instruction, judging whether the difference value between the first carbon dioxide concentration value and one of the second carbon dioxide concentration values is larger than a first set difference value, if so, indicating that the oxygen generating agent can normally perform chemical reaction with carbon dioxide to generate oxygen, and that the oxygen generating agent is effective, and if not, indicating that the oxygen generating agent hardly performs chemical reaction with carbon dioxide, and that the oxygen generating agent fails, controlling the alarm to send out warning information for replacing the oxygen generating agent until the replaced oxygen generating agent test is effective.
The further optimized technical scheme is that a plurality of first temperature sensors are uniformly arranged at specific positions of the lower part of the inner wall of the oxygen generating agent tank body along the circumferential direction, and a plurality of second temperature sensors are uniformly arranged at specific positions of the upper part of the inner wall of the absorbent tank body along the circumferential direction;
each first temperature sensor is used for detecting the temperature value of the position to be used as a first temperature value and transmitting the first temperature value to the controller;
each second temperature sensor is used for detecting the temperature value of the position to be used as a second temperature value and transmitting the second temperature value to the controller;
diving stage:
the controller is used for judging whether the difference value between the first carbon dioxide concentration value and one of the second carbon dioxide concentration values is larger than a first set difference value or not at regular time after the circulating type scuba starts to work, if yes, the oxygen generator and the carbon dioxide are indicated to generate normal chemical reaction to generate oxygen, the oxygen generator is effective, the first temperature sensors are further controlled to start to work, whether one of the first temperature values is larger than the first set temperature value or not is judged at regular time, if yes, whether the difference value between one of the second carbon dioxide concentration values and one of the third carbon dioxide concentration values is larger than the second set difference value or not is judged, if yes, the carbon dioxide absorber can normally absorb carbon dioxide, the carbon dioxide absorber is effective, the alarm is controlled to send out warning information that the oxygen generator is about to run out, the carbon dioxide absorber is effective, and if no, the alarm is controlled to send out warning information that the oxygen generator is about to run out, the carbon dioxide absorber is about to be ineffective, and the scuba is about to go out water;
When the difference is not more than the first set difference, the oxygen generating agent is hardly subjected to chemical reaction with carbon dioxide, the oxygen generating agent is invalid, whether the difference between one of the second carbon dioxide concentration values and one of the third carbon dioxide concentration values is more than the second set difference is further judged at regular time, when the difference is yes, the carbon dioxide absorbing agent can absorb carbon dioxide normally, the carbon dioxide absorbing agent is effective, the alarm is controlled to send out warning information that the oxygen generating agent is invalid and the carbon dioxide absorbing agent is effective, the second temperature sensors are further controlled to start working, whether one of the second temperature values is more than the second set temperature value is judged at regular time, and when the difference is yes, the alarm is controlled to send out warning information that the oxygen generating agent is invalid, the carbon dioxide absorbing agent is about to run out and the diver is about to go out water;
when the difference is not larger than the second set difference, the carbon dioxide absorbent hardly absorbs carbon dioxide, the carbon dioxide absorbent fails, and the control alarm sends out warning information that the oxygen generating agent and the carbon dioxide absorbent fail and the diver immediately goes out of water.
The invention also provides a method for monitoring the use state of the reactant in the reactant tank, which is characterized by being realized by the reactant tank, and the method for monitoring the use state comprises the following steps:
Testing:
s11, filling a carbon dioxide absorbent into only the absorbent chamber, and not filling an oxygen generating agent into the oxygen generating agent chamber, so that a diver breathes with a breathing mask;
s12, after receiving a carbon dioxide absorbent testing instruction, the controller controls a second carbon dioxide concentration sensor and a third carbon dioxide concentration sensor to start working, judges whether the difference value between one of the second carbon dioxide concentration values and one of the third carbon dioxide concentration values is larger than a second set difference value, if so, indicates that the carbon dioxide absorbent can normally absorb carbon dioxide, and that the carbon dioxide absorbent is effective, if not, indicates that the carbon dioxide absorbent hardly absorbs carbon dioxide, and that the carbon dioxide absorbent is invalid, and controls an alarm to send out warning information for replacing the carbon dioxide absorbent until the replaced carbon dioxide absorbent is tested to be effective;
s13, filling an oxygen generating agent into the oxygen generating agent chamber, and enabling a diver to breathe with an upper breathing mask;
s14, after receiving an oxygen generating agent test instruction, the controller controls the first carbon dioxide concentration sensor and the second carbon dioxide concentration sensor to start working, judges whether the difference value between the first carbon dioxide concentration value and one of the second carbon dioxide concentration values is larger than a first set difference value, if so, indicates that the oxygen generating agent can normally perform chemical reaction with carbon dioxide to generate oxygen, the oxygen generating agent is effective, and if not, indicates that the oxygen generating agent hardly performs chemical reaction with carbon dioxide, the oxygen generating agent fails, and controls the alarm to send out warning information for replacing the oxygen generating agent until the replaced oxygen generating agent is tested to be effective.
The further optimized technical scheme is that a plurality of first temperature sensors are uniformly arranged at specific positions on the lower part of the inner wall of the oxygen generating agent tank body along the circumferential direction, a plurality of second temperature sensors are uniformly arranged at specific positions on the upper part of the inner wall of the absorbent tank body along the circumferential direction, the temperature value of the position where each first temperature sensor detects is used as a first temperature value, and the temperature value of the position where each second temperature sensor detects is used as a second temperature value;
the use state monitoring method comprises the following steps: diving stage:
s21, after a first period of time when the circulating type scuba starts working, the controller judges whether the difference value between the first carbon dioxide concentration value and one of the second carbon dioxide concentration values is larger than a first set difference value, if yes, the controller indicates that the oxygen generating agent and the carbon dioxide generate normal chemical reaction to generate oxygen, the oxygen generating agent is effective, the first temperature sensors are further controlled to start working, whether one of the first temperature values is larger than the first set temperature value is judged at regular time, if yes, the controller judges whether the difference value between one of the second carbon dioxide concentration values and one of the third carbon dioxide concentration values is larger than the second set difference value, if yes, the controller indicates that the carbon dioxide absorbing agent can normally absorb carbon dioxide, the carbon dioxide absorbing agent is effective, the controller controls the alarm to send warning information that the oxygen generating agent is about to be used up, the carbon dioxide absorbing agent is effective, and if no, the carbon dioxide absorbing agent is about to be used up, the alarm is controlled to send warning information that the oxygen generating agent is about to be used up, and the scuba is about to go out water;
S22, when the difference value is not more than a first set difference value, the oxygen generating agent is hardly subjected to chemical reaction with carbon dioxide, the oxygen generating agent is invalid, whether the difference value between one of the second carbon dioxide concentration values and one of the third carbon dioxide concentration values is more than a second set difference value is further judged at regular time, when the difference value is more than the second set difference value, the carbon dioxide absorbent is indicated to be capable of normally absorbing carbon dioxide, the carbon dioxide absorbent is effective, the alarm is controlled to send out warning information that the oxygen generating agent is invalid and the carbon dioxide absorbent is effective, the second temperature sensors are further controlled to start working, whether one of the second temperature values is more than the second set temperature value is judged at regular time, and when the difference value is more than the first set difference value, the alarm is controlled to send out warning information that the oxygen generating agent is invalid, the carbon dioxide absorbent is about to run out and a diver is about to go out;
s23, when the difference value is not larger than a second set difference value, the carbon dioxide absorbent hardly absorbs carbon dioxide, the carbon dioxide absorbent fails, and the control alarm sends out warning information that the oxygen generating agent and the carbon dioxide absorbent fail and the diver immediately goes out of water.
The invention has the positive progress effects that:
the invention designs an oxygen generating agent tank and a carbon dioxide absorbent tank which are designed into an integrated structure, carbon dioxide in gas exhaled by a diver firstly carries out chemical reaction through an oxygen generating agent in an oxygen generating agent tank body to generate oxygen, then the carbon dioxide which does not carry out chemical reaction with the oxygen generating agent and the generated oxygen flow into the absorbent tank body, the carbon dioxide is absorbed by a carbon dioxide absorbent in the absorbent tank body, and the generated oxygen flows into an air suction pipeline of a circulating type scuba through a connecting pipe inserted at the top of an absorbent chamber so as to supply oxygen for the diver, so that the carbon dioxide can be effectively utilized, waste materials are changed into valuable materials, and the underwater diving time of the diver is prolonged.
In the invention, the arrangement of the first gap is beneficial for the gas in the exhale inlet to flow into the first gap, and then flow into the oxygen generating agent chamber after being diffused in the first gap, the gas in the exhale inlet not only can flow into the top middle part of the oxygen generating agent chamber, but also can flow into the top position of the oxygen generating agent chamber which is far away from the middle part, so that the oxygen generating agent which is far away from the center position in the oxygen generating agent chamber can also contact with carbon dioxide in the gas, and the oxygen is generated by chemical reaction, and the oxygen generating agent can be fully utilized; the absorbent tank body is arranged around the oxygen generating tank body and the second gap is arranged, so that gas passing through the oxygen generating chamber is facilitated to diffuse in the second gap and then flows into the surrounding absorbent chamber, and the carbon dioxide absorbent can be fully utilized.
The invention designs a method for monitoring the use state of a reactant in a reactant tank, which can detect whether a carbon dioxide absorbent in the tank body is effective or not and whether an oxygen generating agent is effective or not before diving, and ensure that the carbon dioxide absorbent and the oxygen generating agent which are filled in the tank body before diving are effective; the use states of the carbon dioxide absorbent and the oxygen generating agent in the tank body can be continuously detected in the diving process, and different warnings are given to divers based on different use states.
Drawings
FIG. 1 is a schematic view of the structure of a reactant tank for a circulating type scuba gear according to a preferred embodiment of the present invention.
FIG. 2 is a flow chart showing the use of oxygen generating agent and carbon dioxide absorbent during the diving stage according to the preferred embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, this embodiment provides a reactant tank for a circulating type scuba, which includes an oxygen-generating tank body 1 and an absorbent tank body 2, wherein the cross section of the oxygen-generating tank body 1 is rectangular, the opening of the oxygen-generating tank body 1 is upward, the absorbent tank body 2 is coaxially fixed outside the oxygen-generating tank body 1, the absorbent tank body 2 is enclosed around the circumference of the oxygen-generating tank body 1, the cross section of the absorbent tank body 2 is rectangular located at the left side and the right side of the cross section of the oxygen-generating tank body 1, and the opening of the absorbent tank body 2 is downward.
The top detachably of the oxygen generator tank body 1 is fixed with an oxygen generator tank cover 3, the oxygen generator tank cover 3 is of a hollow structure with an inverted concave section, for example, the top of the oxygen generator tank body 1 is in threaded connection with the oxygen generator tank cover 3, the oxygen generator tank cover 3 is used for sealing the oxygen generator tank body 1, and the bottom end of the oxygen generator tank cover 3 is close to the top end of the carbon dioxide absorbent tank body 1 after the oxygen generator tank cover 3 is covered.
The inside bottom of oxygen generating tank lid 3 and the top of oxygen generating tank body 1 have first gap 4, the top intermediate position department of oxygen generating tank lid 3 wears to establish and is fixed with exhale import 5, exhale the top of import 5 and extend the top of oxygen generating tank lid 3 and communicate with the expiration pipeline of circulating scuba, exhale the bottom of import 5 and the inner bottom of oxygen generating tank lid 3 flush, exhale import 5 internal fixation and have first carbon dioxide concentration sensor 6, the top of oxygen generating tank body 1 is fixed with perforated plate 7, perforated plate 7 sets up to the gas accessible, and the oxygen generating agent can not pass through, make oxygen generating agent of oxygen generating agent cavity 8 in the oxygen generating tank body 1 in can not flow into exhale import 5, exhale import 5 and communicate with each other with oxygen generating agent cavity 8 through first gap 4 and perforated plate 7, the setting of first gap 4 is favorable to exhale in import 5 gas inflow first gap 4, diffuse the back in first gap 4 and then flow into oxygen generating agent cavity 8, exhale the gas in import 5 and can not only flow into oxygen generating agent cavity 8's top intermediate position 8, can also be slightly far away from the place in the oxygen generating agent cavity 8 of oxygen generating agent cavity of oxygen generating cavity, the place position in the place of the oxygen generating agent of oxygen generating tank body 1, the place is further can also be far away from the place of the top of the oxygen generating agent in the place of the top of place of reaction chamber, the place is further far away from the top position.
The bottom of the oxygen generating tank body 1 is a porous structure 9, and the pore diameter is set to be gas-permeable, but oxygen generating agent can not pass.
The bottom opening position department of the absorbent jar body 2 leaves second gap 10 with the outer bottom of the oxygen-generating agent jar body 1 between, the outer bottom of the oxygen-generating agent jar body 1 is fixed with cylinder baffle 11, the internal diameter of cylinder baffle 11 equals the internal diameter of the oxygen-generating agent jar body, the height equals the height of second gap 10, the wall of cylinder baffle 11 is porous structure, and the aperture sets up to gaseous passability, and carbon dioxide absorbent is unable, the outer bottom of the oxygen-generating agent jar body 1 just lies in cylinder baffle 11 internal fixation has a plurality of second carbon dioxide concentration sensor 12, if set up two second carbon dioxide concentration sensor 12, be located cylinder baffle 11 central axis both sides respectively, the bottom detachably of the absorbent jar body 2 is fixed with absorbent jar lid 13, like the bottom of the absorbent jar body 2 is connected with absorbent jar lid 13, absorbent jar lid 13 is used for sealed absorbent jar body 2, the cross-section is the concave character type this moment, with the bottom of sealing absorbent jar 2, just cylinder baffle 11's bottom and absorbent jar lid 13 contact, the equal be fixed with a plurality of second carbon dioxide concentration sensor 12 in the bottom of the oxygen-generating agent jar 1 and be located cylinder baffle 11, the equal to connect the equal circumference of three-dimensional diameter of joint pipe 15 of porous structure 15 is equipped with the equal to connect pipe 15 of the equal bottom of the equal connecting tube of oxygen-generating agent jar 1 through porous structure 15, the equal bottom of the equal connection pipe 15 of the equal diameter of oxygen-generating agent jar 1, the equal bottom of joint pipe 15 is connected with the equal bottom of the oxygen-phase of the oxygen-generating agent jar 1, the equal bottom of joint pipe 15.
A controller 17 is arranged in the oxygen generating agent tank cover 3, and a carbon dioxide absorbent testing control key 18, an oxygen generating agent testing control key 19 and an alarm 20 are embedded on the upper surface of the oxygen generating agent tank cover 3.
The first carbon dioxide concentration sensor 6 is used to detect the carbon dioxide concentration in the exhalation inlet 5 as a first carbon dioxide concentration value and to transmit it to the controller 17.
Each of the second carbon dioxide concentration sensors 12 is for detecting the carbon dioxide concentration after passing through the oxygen-generating chamber 8 as a second carbon dioxide concentration value and transmitting to the controller 17.
Each third carbon dioxide concentration sensor 16 is for detecting the carbon dioxide concentration after passing through the absorbent chamber 14 as a third carbon dioxide concentration value and transmitting to the controller 17.
The carbon dioxide absorbent testing control 18 is used for giving a carbon dioxide absorbent testing instruction to the user.
The oxygen generating agent test control 19 is used for giving an oxygen generating agent test instruction to the user.
Testing: the effectiveness of the oxygen generating agent and the carbon dioxide absorbent is tested, firstly the absorbent chamber 14 is filled with the carbon dioxide absorbent, the oxygen generating agent chamber 8 is not filled with the oxygen generating agent, a worker breathes with a breathing mask, and presses the carbon dioxide absorbent test control key 18 to send a carbon dioxide absorbent test instruction.
The controller 17 is configured to control the second carbon dioxide concentration sensor 12 and the third carbon dioxide concentration sensor 16 to start operating after receiving the carbon dioxide absorbent testing instruction, determine whether a difference between one of the second carbon dioxide concentration values and one of the third carbon dioxide concentration values is greater than a second set difference, indicate that the carbon dioxide absorbent can normally absorb carbon dioxide when yes, indicate that the carbon dioxide absorbent is effective, indicate that the carbon dioxide absorbent hardly absorbs carbon dioxide when no, and control the alarm 20 to send out warning information for replacing the carbon dioxide absorbent until the replaced carbon dioxide absorbent is tested to be effective.
And then the oxygen generating agent chamber 8 is filled with oxygen generating agent, the diver breathes with the breathing mask, and the worker presses the oxygen generating agent test control key 19 to send out an oxygen generating agent test instruction.
The controller 17 is configured to control the first carbon dioxide concentration sensor 6 and the second carbon dioxide concentration sensor 12 to start working after receiving the oxygen generating agent test instruction, determine whether a difference between the first carbon dioxide concentration value and one of the second carbon dioxide concentration values is greater than a first set difference, if yes, indicate that the oxygen generating agent can normally perform a chemical reaction with carbon dioxide to generate oxygen, and if no, indicate that the oxygen generating agent hardly performs a chemical reaction with carbon dioxide, and control the alarm 20 to send out warning information for replacing the oxygen generating agent until the replaced oxygen generating agent test is effective.
Further, a plurality of first temperature sensors 21 are uniformly provided in the circumferential direction at specific positions on the lower portion of the inner wall of the oxygen generating tank 1, and a plurality of second temperature sensors 22 are uniformly provided in the circumferential direction at specific positions on the upper portion of the inner wall of the absorbent tank 2.
Each first temperature sensor 21 is configured to detect a temperature value of a location as a first temperature value and transmit the first temperature value to the controller 17.
Each second temperature sensor 22 is configured to detect a temperature value at a location as a second temperature value and transmit the second temperature value to the controller 17.
The principle of oxygen generation by the oxygen generating agent is as follows: the oxygen generating agent and the carbon dioxide in the exhaled air of the diver react chemically to generate oxygen, heat is generated, and the temperature rises along with the use of the oxygen generating agent, so that the use state of the oxygen generating agent can be detected by the temperature sensor.
The principle of absorbing carbon dioxide by the carbon dioxide absorbent is as follows: the carbon dioxide absorbent and carbon dioxide in the exhaled gas of the diver react chemically to generate heat, and the temperature rise is caused along with the use of the carbon dioxide absorbent, so that the use state of the carbon dioxide absorbent can be detected by the temperature sensor.
Diving stage:
the controller 17 is configured to determine, at a fixed time, whether a difference between the first carbon dioxide concentration value and one of the second carbon dioxide concentration values is greater than a first set difference value after a first period (e.g. 10 seconds) from when the circulating type scuba starts to operate, and if yes, indicate that the oxygen generating agent and the carbon dioxide are normally chemically reacted to generate oxygen, the oxygen generating agent is effective, further control the first temperature sensors 21 to start operation, and determine, at a fixed time, whether one of the first temperature values is greater than the first set temperature value, if yes, determine whether a difference between one of the second carbon dioxide concentration values and one of the third carbon dioxide concentration values is greater than a second set difference value, and if yes, indicate that the carbon dioxide absorbing agent is normally absorbing carbon dioxide, the carbon dioxide absorbing agent is effective, control the alarm 20 to emit warning information that the oxygen generating agent is about to be used up, and if no, indicate that the carbon dioxide absorbing agent is hardly absorbing carbon dioxide is invalid, and control the alarm 20 to emit warning information that the oxygen generating agent is about being used up, the carbon dioxide absorbing agent is about being out of water, and the scuba is about being out of water.
The controller 17 indicates that the oxygen generating agent hardly reacts with the carbon dioxide when judging that the difference between the first carbon dioxide concentration value and one of the second carbon dioxide concentration values is not more than the first set difference, further judges at regular time whether the difference between one of the second carbon dioxide concentration values and one of the third carbon dioxide concentration values is more than the second set difference, and indicates that the carbon dioxide absorbent can normally absorb the carbon dioxide when judging that the difference is more than the second set difference, controls the alarm 20 to send out warning information that the oxygen generating agent is invalid and the carbon dioxide absorbent is valid, further controls the second temperature sensors 12 to start working, judges at regular time whether one of the second temperature values is more than the second set temperature value, and controls the alarm 20 to send out warning information that the oxygen generating agent is invalid, the carbon dioxide absorbent is about to be used up and the diver is about to go out water when judging that the difference is more than the second set temperature value.
When the controller 17 determines that the difference between one of the second carbon dioxide concentration values and one of the third carbon dioxide concentration values is not greater than the second set difference, it indicates that the carbon dioxide absorbent hardly absorbs carbon dioxide, the carbon dioxide absorbent fails, and the alarm 20 is controlled to send out warning information that the oxygen generating agent and the carbon dioxide absorbent are both failed and that the diver immediately goes out of water.
The embodiment also provides a method for monitoring the usage state of the reactant in the reactant tank, which is implemented by using the reactant tank, and the method for monitoring the usage state comprises the following steps:
testing:
s11, only the absorbent chamber 14 is filled with the carbon dioxide absorbent, the oxygen generating agent chamber 8 is not filled with the oxygen generating agent, and the diver breathes with the breathing mask.
And S12, after receiving a carbon dioxide absorbent testing instruction, the controller 17 controls the second carbon dioxide concentration sensor 12 and the third carbon dioxide concentration sensor 16 to start working, judges whether the difference value between one of the second carbon dioxide concentration values and one of the third carbon dioxide concentration values is larger than a second set difference value, if so, indicates that the carbon dioxide absorbent can normally absorb carbon dioxide, and that the carbon dioxide absorbent is effective, and if not, indicates that the carbon dioxide absorbent hardly absorbs carbon dioxide, and that the carbon dioxide absorbent fails, controls the alarm 20 to send out warning information for replacing the carbon dioxide absorbent until the replaced carbon dioxide absorbent is tested to be effective.
S13, filling an oxygen generating agent into the oxygen generating agent chamber 8, and taking a breathing mask by a diver for breathing.
S14, after receiving the oxygen generating agent test instruction, the controller 17 controls the first carbon dioxide concentration sensor 6 and the second carbon dioxide concentration sensor 12 to start working, judges whether the difference value between the first carbon dioxide concentration value and one of the second carbon dioxide concentration values is larger than a first set difference value, if so, indicates that the oxygen generating agent can normally perform chemical reaction with carbon dioxide to generate oxygen, and indicates that the oxygen generating agent is effective, if not, indicates that the oxygen generating agent hardly performs chemical reaction with carbon dioxide, and controls the alarm 20 to send out warning information for replacing the oxygen generating agent until the replaced oxygen generating agent test is effective.
See fig. 2, diving phase:
s21, after a first period of time when the circulating type scuba starts working, the controller 17 judges whether the difference value between the first carbon dioxide concentration value and one of the second carbon dioxide concentration values is larger than a first set difference value, if yes, the controller indicates that the oxygen generator and the carbon dioxide generate normal chemical reaction to generate oxygen, the oxygen generator is effective, the first temperature sensors 6 are further controlled to start working, whether one of the first temperature values is larger than the first set temperature value is judged at regular time, if yes, the controller judges whether the difference value between one of the second carbon dioxide concentration values and one of the third carbon dioxide concentration values is larger than a second set difference value, if yes, the controller indicates that the carbon dioxide absorber can normally absorb carbon dioxide, the carbon dioxide absorber is effective, the controller controls the alarm 20 to send out warning information that the oxygen generator is about to run out and the carbon dioxide absorber is effective, and if no, the carbon dioxide absorber is about to fail, and the controller controls the alarm 20 to send out warning information that the oxygen generator is about running out and the carbon dioxide absorber is about to be out.
S22, when the difference value is not larger than the first set difference value, the controller indicates that the oxygen generating agent hardly reacts with the carbon dioxide, the oxygen generating agent fails, and further judges whether the difference value between one of the second carbon dioxide concentration values and one of the third carbon dioxide concentration values is larger than the second set difference value or not at regular time, when the difference value is larger than the second set difference value, the controller indicates that the carbon dioxide absorbing agent can normally absorb the carbon dioxide, the carbon dioxide absorbing agent is effective, the alarm 20 is controlled to send out warning information that the oxygen generating agent fails and the carbon dioxide absorbing agent is effective, the second temperature sensors are further controlled to start working, and when the difference value is larger than the second set temperature value, the alarm is controlled to send out warning information that the oxygen generating agent fails, the carbon dioxide absorbing agent is about to run out and the diver is about to go out water.
And S23, when the difference value is not more than a second set difference value, the controller 17 indicates that the carbon dioxide absorbent hardly absorbs carbon dioxide, the carbon dioxide absorbent fails, and the control alarm 20 sends out warning information that the oxygen generating agent and the carbon dioxide absorbent fail and the diver immediately goes out of water.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.

Claims (8)

1. The reaction agent tank for the circulating type diving breathing apparatus is characterized by comprising an oxygen generating agent tank body, wherein the cross section of the oxygen generating agent tank body is rectangular, an oxygen generating agent tank cover with an inverted concave cross section is detachably fixed at the top of the oxygen generating agent tank body, a first gap is formed between the inner bottom of the oxygen generating agent tank cover and the top end of the oxygen generating agent tank body, an expiration inlet is fixedly penetrated at the middle position of the top of the oxygen generating agent tank cover, the top end of the expiration inlet is communicated with an expiration pipeline of the circulating type diving breathing apparatus, the bottom end of the expiration inlet is flush with the inner bottom of the oxygen generating agent tank body, a first carbon dioxide concentration sensor is fixedly arranged in the expiration inlet, a porous plate is fixedly arranged at the top end of the oxygen generating agent tank body, the porous plate is arranged to be capable of passing gas, the oxygen generating agent is not capable of passing through, the expiration inlet is communicated with an oxygen generating agent chamber through the first gap and the porous plate, and the bottom of the oxygen generating agent tank body is of a porous structure and the pore diameter is arranged to be capable of passing gas, and the oxygen generating agent is not capable of passing through;
the oxygen generating agent tank body is coaxially fixed with an absorbent tank body outside the oxygen generating agent tank body, the section of the absorbent tank body is rectangular and is positioned at the left side and the right side of the section of the oxygen generating agent tank body, a second gap is reserved between the opening position of the bottom of the absorbent tank body and the outer bottom of the oxygen generating agent tank body, a cylindrical partition plate is fixed at the outer bottom of the oxygen generating agent tank body, the inner diameter of the cylindrical partition plate is equal to the inner diameter of the oxygen generating agent tank body, the height of the cylindrical partition plate is equal to the height of the second gap, the wall of the cylindrical partition plate is of a porous structure, the pore diameter is set to be through which gas can pass, but carbon dioxide absorbent can not pass, a plurality of second carbon dioxide concentration sensors are uniformly fixed at the outer bottom of the oxygen generating agent tank body and are positioned in the cylindrical partition plate, the bottom of the absorbent tank body is detachably fixed with an absorbent tank cover, the cross section of the absorbent tank cover is concave so as to seal the bottom of the absorbent tank body, at the moment, the bottom of the right cylindrical partition plate is in contact with the absorbent tank cover, an absorbent cavity in the absorbent tank body is communicated with an oxygen generating cavity through a porous structure of the cylindrical partition plate and a porous structure of the bottom of the oxygen generating tank body, a plurality of connecting pipes are uniformly inserted into the top of the absorbent cavity along the circumferential direction, each connecting pipe is communicated with an air suction pipeline of the circulating type scuba, and a third carbon dioxide concentration sensor is fixed in each connecting pipe;
The first carbon dioxide concentration sensor is used for detecting the carbon dioxide concentration in the expiratory inlet as a first carbon dioxide concentration value and transmitting the first carbon dioxide concentration value to the controller;
each second carbon dioxide concentration sensor is used for detecting the concentration of carbon dioxide after passing through the oxygen generating agent chamber as a second carbon dioxide concentration value and transmitting the second carbon dioxide concentration value to the controller;
each of the third carbon dioxide concentration sensors is configured to detect a carbon dioxide concentration after passing through the absorbent chamber as a third carbon dioxide concentration value and transmit the third carbon dioxide concentration value to the controller.
2. The reactant tank for a circulating type scuba machine according to claim 1, wherein the oxygen-generating agent tank cover has a hollow structure, the controller is arranged in the oxygen-generating agent tank cover, and a carbon dioxide absorbent test control key, an oxygen-generating agent test control key and an alarm are embedded on the upper surface of the oxygen-generating agent tank cover;
the carbon dioxide absorbent testing control key is used for a user to send out a carbon dioxide absorbent testing instruction;
the oxygen generating agent test control key is used for a user to send out an oxygen generating agent test instruction;
testing:
preconditions are: only the absorbent chamber is filled with carbon dioxide absorbent, the oxygen generating agent chamber is not filled with oxygen generating agent, and the diver breathes with the breathing mask;
The controller is used for controlling the second carbon dioxide concentration sensor and the third carbon dioxide concentration sensor to start working after receiving the carbon dioxide absorbent testing instruction, judging whether the difference value between one of the second carbon dioxide concentration values and one of the third carbon dioxide concentration values is larger than a second set difference value, if so, indicating that the carbon dioxide absorbent can normally absorb carbon dioxide, that the carbon dioxide absorbent is effective, and if not, indicating that the carbon dioxide absorbent hardly absorbs carbon dioxide, that the carbon dioxide absorbent is ineffective, and controlling the alarm to send out warning information for replacing the carbon dioxide absorbent until the replaced carbon dioxide absorbent is tested to be effective;
preconditions are: then the oxygen generating agent chamber is filled with oxygen generating agent, and the diver breathes with the breathing mask;
the controller is used for controlling the first carbon dioxide concentration sensor and the second carbon dioxide concentration sensor to start working after receiving the oxygen generating agent test instruction, judging whether the difference value between the first carbon dioxide concentration value and one of the second carbon dioxide concentration values is larger than a first set difference value, if so, indicating that the oxygen generating agent can normally perform chemical reaction with carbon dioxide to generate oxygen, and that the oxygen generating agent is effective, and if not, indicating that the oxygen generating agent hardly performs chemical reaction with carbon dioxide, and that the oxygen generating agent fails, controlling the alarm to send out warning information for replacing the oxygen generating agent until the replaced oxygen generating agent test is effective.
3. The reactant tank for a circulating type scuba machine according to claim 1, wherein a plurality of first temperature sensors are uniformly provided in a circumferential direction at specific positions on an inner wall lower portion of the oxygen-generating tank body, and a plurality of second temperature sensors are uniformly provided in a circumferential direction at specific positions on an inner wall upper portion of the absorbent tank body;
each first temperature sensor is used for detecting the temperature value of the position to be used as a first temperature value and transmitting the first temperature value to the controller;
each second temperature sensor is used for detecting the temperature value of the position to be used as a second temperature value and transmitting the second temperature value to the controller;
diving stage:
the controller is used for judging whether the difference value between the first carbon dioxide concentration value and one of the second carbon dioxide concentration values is larger than a first set difference value or not at regular time after the circulating type scuba starts to work, if yes, the oxygen generator and the carbon dioxide are indicated to generate normal chemical reaction to generate oxygen, the oxygen generator is effective, the first temperature sensors are further controlled to start to work, whether one of the first temperature values is larger than the first set temperature value or not is judged at regular time, if yes, whether the difference value between one of the second carbon dioxide concentration values and one of the third carbon dioxide concentration values is larger than the second set difference value or not is judged, if yes, the carbon dioxide absorber can normally absorb carbon dioxide, the carbon dioxide absorber is effective, the alarm is controlled to send out warning information that the oxygen generator is about to run out, the carbon dioxide absorber is effective, and if no, the alarm is controlled to send out warning information that the oxygen generator is about to run out, the carbon dioxide absorber is about to be ineffective, and the scuba is about to go out water;
When the difference is not more than the first set difference, the oxygen generating agent is hardly subjected to chemical reaction with carbon dioxide, the oxygen generating agent is invalid, whether the difference between one of the second carbon dioxide concentration values and one of the third carbon dioxide concentration values is more than the second set difference is further judged at regular time, when the difference is yes, the carbon dioxide absorbing agent can absorb carbon dioxide normally, the carbon dioxide absorbing agent is effective, the alarm is controlled to send out warning information that the oxygen generating agent is invalid and the carbon dioxide absorbing agent is effective, the second temperature sensors are further controlled to start working, whether one of the second temperature values is more than the second set temperature value is judged at regular time, and when the difference is yes, the alarm is controlled to send out warning information that the oxygen generating agent is invalid, the carbon dioxide absorbing agent is about to run out and the diver is about to go out water;
when the difference is not larger than the second set difference, the carbon dioxide absorbent hardly absorbs carbon dioxide, the carbon dioxide absorbent fails, and the control alarm sends out warning information that the oxygen generating agent and the carbon dioxide absorbent fail and the diver immediately goes out of water.
4. The reactant tank for circulating type scuba machine of claim 1 wherein the top of the oxygen-generating tank body is screw-connected with an oxygen-generating tank cover to seal the oxygen-generating tank body.
5. The reactant tank for circulating type scuba gear of claim 1 wherein the bottom of the absorbent tank body is screw-connected with an absorbent tank cover to seal the absorbent tank body.
6. The reactant tank for circulating type scuba machine of claim 1 wherein the bottom end of the oxygen generating agent tank cover is immediately adjacent the top end of the carbon dioxide absorbent tank body.
7. A method for monitoring the use state of a reactant in a reactant tank, characterized in that it is realized by the reactant tank according to claims 1-2 and 4-6, comprising:
testing:
s11, filling a carbon dioxide absorbent into only the absorbent chamber, and not filling an oxygen generating agent into the oxygen generating agent chamber, so that a diver breathes with a breathing mask;
s12, after receiving a carbon dioxide absorbent testing instruction, the controller controls a second carbon dioxide concentration sensor and a third carbon dioxide concentration sensor to start working, judges whether the difference value between one of the second carbon dioxide concentration values and one of the third carbon dioxide concentration values is larger than a second set difference value, if so, indicates that the carbon dioxide absorbent can normally absorb carbon dioxide, and that the carbon dioxide absorbent is effective, if not, indicates that the carbon dioxide absorbent hardly absorbs carbon dioxide, and that the carbon dioxide absorbent is invalid, and controls an alarm to send out warning information for replacing the carbon dioxide absorbent until the replaced carbon dioxide absorbent is tested to be effective;
S13, filling an oxygen generating agent into the oxygen generating agent chamber, and enabling a diver to breathe with an upper breathing mask;
s14, after receiving an oxygen generating agent test instruction, the controller controls the first carbon dioxide concentration sensor and the second carbon dioxide concentration sensor to start working, judges whether the difference value between the first carbon dioxide concentration value and one of the second carbon dioxide concentration values is larger than a first set difference value, if so, indicates that the oxygen generating agent can normally perform chemical reaction with carbon dioxide to generate oxygen, the oxygen generating agent is effective, and if not, indicates that the oxygen generating agent hardly performs chemical reaction with carbon dioxide, the oxygen generating agent fails, and controls the alarm to send out warning information for replacing the oxygen generating agent until the replaced oxygen generating agent is tested to be effective.
8. The method for monitoring the usage state of a reactant in a reactant tank according to claim 7, wherein a plurality of first temperature sensors are uniformly arranged at specific positions on the lower portion of the inner wall of the oxygen-generating tank body along the circumferential direction, a plurality of second temperature sensors are uniformly arranged at specific positions on the upper portion of the inner wall of the absorbent tank body along the circumferential direction, and each of the first temperature sensors detects the temperature value of the position as a first temperature value and each of the second temperature sensors detects the temperature value of the position as a second temperature value;
The use state monitoring method comprises the following steps: diving stage:
s21, after a first period of time when the circulating type scuba starts working, the controller judges whether the difference value between the first carbon dioxide concentration value and one of the second carbon dioxide concentration values is larger than a first set difference value, if yes, the controller indicates that the oxygen generating agent and the carbon dioxide generate normal chemical reaction to generate oxygen, the oxygen generating agent is effective, the first temperature sensors are further controlled to start working, whether one of the first temperature values is larger than the first set temperature value is judged at regular time, if yes, the controller judges whether the difference value between one of the second carbon dioxide concentration values and one of the third carbon dioxide concentration values is larger than the second set difference value, if yes, the controller indicates that the carbon dioxide absorbing agent can normally absorb carbon dioxide, the carbon dioxide absorbing agent is effective, the controller controls the alarm to send warning information that the oxygen generating agent is about to be used up, the carbon dioxide absorbing agent is effective, and if no, the carbon dioxide absorbing agent is about to be used up, the alarm is controlled to send warning information that the oxygen generating agent is about to be used up, and the scuba is about to go out water;
S22, when the difference value is not more than a first set difference value, the oxygen generating agent is hardly subjected to chemical reaction with carbon dioxide, the oxygen generating agent is invalid, whether the difference value between one of the second carbon dioxide concentration values and one of the third carbon dioxide concentration values is more than a second set difference value is further judged at regular time, when the difference value is more than the second set difference value, the carbon dioxide absorbent is indicated to be capable of normally absorbing carbon dioxide, the carbon dioxide absorbent is effective, the alarm is controlled to send out warning information that the oxygen generating agent is invalid and the carbon dioxide absorbent is effective, the second temperature sensors are further controlled to start working, whether one of the second temperature values is more than the second set temperature value is judged at regular time, and when the difference value is more than the first set difference value, the alarm is controlled to send out warning information that the oxygen generating agent is invalid, the carbon dioxide absorbent is about to run out and a diver is about to go out;
s23, when the difference value is not larger than a second set difference value, the carbon dioxide absorbent hardly absorbs carbon dioxide, the carbon dioxide absorbent fails, and the control alarm sends out warning information that the oxygen generating agent and the carbon dioxide absorbent fail and the diver immediately goes out of water.
CN202311273458.XA 2023-09-27 2023-09-27 Reactant tank for circulating type scuba gear and use state monitoring method Active CN117734910B (en)

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