CN114576132A - Compressed air booster - Google Patents
Compressed air booster Download PDFInfo
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- CN114576132A CN114576132A CN202210186946.6A CN202210186946A CN114576132A CN 114576132 A CN114576132 A CN 114576132A CN 202210186946 A CN202210186946 A CN 202210186946A CN 114576132 A CN114576132 A CN 114576132A
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- cavity
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- compressed air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/008—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being a fluid transmission link
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention discloses a compressed air booster, which comprises a cylinder body assembly and a pneumatic control assembly, wherein the cylinder body assembly comprises a cylinder body and a cylinder body; the cylinder body assembly comprises a cylinder body, a middle isolation ring fixed in an inner cavity of the cylinder body, and a left end cover plate and a right end cover plate which are connected with two ends of the cylinder body, wherein a left piston and a right piston are respectively arranged on the left side and the right side of the middle isolation ring, a piston rod is connected between the left piston and the right piston, the inner cavity of the cylinder body is divided into an A cavity, a B cavity, a C cavity and a D cavity, a left end stroke valve is arranged on the left end cover plate, a right end stroke valve is arranged on the right end cover plate, one end of a movable valve core of the left end stroke valve is communicated with the A cavity, and one end of a movable valve core of the right end stroke valve is communicated with the D cavity; the pneumatic control assembly comprises a two-position four-way pneumatic reversing valve, a first one-way valve, a second one-way valve, a third one-way valve and a fourth one-way valve. The invention can fully utilize the prior compressed air resource to recompress the compressed air so as to realize the larger pressurization of the compressed air, thereby meeting the requirements of field application.
Description
Technical Field
The invention relates to the technical field of compressed air boosting, in particular to a compressed air booster.
Background
In industrial applications, compressed air is usually supplied by an air compressor. In many instances, however, the air compressors used at the production site are often inadequate for certain high pressure applications. For example, the long pipes connecting the air compressor may generate a large pressure drop in the compressed air pipe, and the compressed air may be delivered to the application terminal at a low pressure, which may not meet the use requirements of high-pressure pneumatic equipment.
Therefore, how to design and manufacture a device capable of boosting the pressure of the compressed air based on the existing compressed air to meet the needs of field application is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
In order to solve the above problems, the present invention provides a compressed air booster, which aims to utilize the existing compressed air resource to recompress the compressed air so as to realize a larger pressure boost of the compressed air, thereby meeting the requirements of field application. The specific technical scheme is as follows:
a compressed air booster comprising a cylinder assembly and a pneumatic control assembly connected to said cylinder assembly by a conduit;
wherein, the cylinder body component comprises a cylinder body and a middle isolation ring fixedly arranged at the middle inner cavity part of the cylinder body, the left end and the right end of the cylinder body are respectively provided with a left end cover plate and a right end cover plate, the left side and the right side of the middle isolation ring in the cylinder body are respectively provided with a left piston and a right piston, a piston rod is connected between the left piston and the right piston, the piston rod moves to penetrate through the central inner hole of the middle isolation ring and is in sealing fit with the central inner hole, the inner cavity of the cylinder body is sequentially divided into a cavity A, a cavity B, a cavity C and a cavity D by the left end cover plate, the left piston, the middle isolation ring, the right piston and the right end cover plate from left to right, one surface of the middle isolation ring facing the cavity B is provided with a cavity B vent hole for communicating the cavity B and the outer part of the cylinder body, one surface of the middle isolation ring facing the cavity C is provided with a cavity C vent hole for communicating the cavity C and the outer part of the cylinder body, the left end cover plate is provided with an A cavity vent hole for communicating the A cavity with the outside of the cylinder body, the right end cover plate is provided with a D cavity vent hole for communicating the D cavity with the outside of the cylinder body, the left end cover plate is provided with a left end stroke valve, the right end cover plate is provided with a right end stroke valve, one end of a movable valve core of the left end stroke valve is communicated with the A cavity, and one end of the movable valve core of the right end stroke valve is communicated with the D cavity;
wherein, the pneumatic control assembly comprises a two-position four-way pneumatic reversing valve, a first one-way valve, a second one-way valve, a third one-way valve and a fourth one-way valve, two pneumatic control ends used for reversing the valve core to realize passage switching on the two-position four-way pneumatic reversing valve are respectively connected with the left end stroke valve and the right end stroke valve through pipelines, the two-position four-way pneumatic reversing valve comprises an air inlet port, an air outlet port and a pair of inlet and outlet switching ports, the pair of inlet and outlet switching ports are respectively connected with the B cavity vent hole and the C cavity vent hole through pipelines, the air inlet port is connected with an original compressed air source through a pipeline, the original compressed air source is also connected with a D cavity vent hole through a pipeline and the first one-way valve and is connected with an A cavity vent hole through a pipeline and the second one-way valve, and an A cavity vent hole is also connected with an A cavity pressurization output pipeline, still be connected with D chamber pressure boost output pipeline on the D chamber air vent, be provided with the fourth check valve on the A chamber pressure boost output pipeline, be provided with the third check valve on the D chamber pressure boost output pipeline, the export of A chamber pressure boost output pipeline and D chamber pressure boost output pipeline forms compressed air's pressurized air delivery outlet after connecting together.
Preferably, the pressurised air output is connected to an air bottle by a conduit.
As a preferred scheme of the cylinder body assembly, the cylinder body comprises a left cylinder body and a right cylinder body which are independent, the middle isolation ring is in butt joint between the left cylinder body and the right cylinder body, and the left cylinder body, the middle isolation ring and the right cylinder body are axially clamped between the left end cover plate and the right end cover plate through a plurality of tensioning bolts and nuts distributed on the periphery of the cylinder body.
Preferably, two ends of the piston rod are respectively in threaded connection with the left piston and the right piston.
Preferably, the stroke valve comprises a valve body and the movable valve core movably arranged in the valve body, the valve body is fixed on the cover plate, a jacking spring is arranged between the other end of the movable valve core and the valve body, and the original compressed air source is connected to a jacking spring space between the movable valve core and the valve body through a pipeline.
The working principle of the invention is as follows:
when the booster is connected with an original compressed air source, compressed air respectively enters a D cavity and an A cavity of the booster through a first one-way valve and a second one-way valve, and then reaches a third one-way valve and a fourth one-way valve through a boosting output pipeline to be led to an air bottle; the other path of the compressed air is communicated with a two-position four-way pneumatic reversing valve, the two-position four-way pneumatic reversing valve controls the compressed air to enter a C cavity/a B cavity of the booster, when the two-position four-way pneumatic reversing valve is in a right working state, the compressed air is communicated with the C cavity through the two-position four-way pneumatic reversing valve, the B cavity is communicated with the atmosphere, the A cavity and the C cavity have the pressure of the compressed air at the same time, the piston assembly is jointly pushed to move rightwards to force the pressure of the D cavity to rise, the D cavity outputs high-pressure air to close the first one-way valve, the third one-way valve is opened to inflate an air bottle, when the piston assembly reaches the right end, the piston pushes the right end stroke valve, the high-pressure air reaches the control end of the two-position four-way pneumatic reversing valve through the right end, the two-position four-way pneumatic reversing valve is switched to a left working state, and the booster B cavity is inflated through a pipeline through the two-position four-way pneumatic reversing valve, and the cavity B and the cavity D have compressed air pressure simultaneously, the piston assembly is pushed to move left in a combined mode to force the pressure of the cavity A to rise, the cavity A outputs high-pressure air to close the second one-way valve, the fourth one-way valve is opened to charge the air bottle, when the piston assembly reaches the left end, the piston jacks the stroke valve at the left end, the high-pressure air reaches the control end of the two-position four-way pneumatic reversing valve through the stroke valve at the left end and reverses the two-position four-way pneumatic reversing valve, the operation is repeated in this way until the pressure of the air bottle reaches the pressure of the cavity A/D, and the air bottle is automatically started when the pressure of the air bottle is lower than the pressure of the cavity A/D.
The calculation method of the supercharging multiple of the compressed air booster comprises the following steps: the diameter of the piston is X, the diameter of the piston rod is Y, and the supercharging multiple of the compressed air booster without considering the friction resistance is (X)2+(X2-Y2))÷X2。
For example, assuming that the piston diameter of the compressed air booster is 200mm and the piston rod diameter is 50mm, the supercharging ratio of the compressed air booster is 1.9375 times as calculated by the above method. If the original pressure of the compressed air is 10Bar, the boosted compressed air pressure reaches 19.375 Bar.
Preferably, the compressed air booster of the present invention and an air tank connected to a boost air output port of the compressed air booster may be used as one basic booster unit, and a plurality of basic booster units may be connected in series via a pipeline to form a step-by-step boost, thereby further increasing the boost ratio. For example, the supercharging multiple of the compressed air output by the last stage obtained after three basic supercharging units are connected in series is 1.9375 × 1.9375 × 1.9375-7.27 times.
The beneficial effects of the invention are: the device has the advantages of simple structure, safe and reliable use, capability of recompressing the compressed air by utilizing the thrust difference generated by the compressed air, capability of recompressing the compressed air by self, no need of any power cable, motor or other driving devices, capability of saving a lot of cost when used in a specific area, and good economic benefit.
Drawings
FIG. 1 is a schematic view of a compressed air booster of the present invention;
fig. 2 is a partially enlarged view of fig. 1.
In the figure: 1. the pneumatic reversing valve comprises a cylinder body, 2, a middle isolation ring, 3, a left end cover plate, 4, a right end cover plate, 5, a left piston, 6, a right piston, 7, a piston rod, 8, a cavity B vent hole, 9, a cavity C vent hole, 10, a cavity A vent hole, 11, a cavity D vent hole, 12, a left end stroke valve, 13, a right end stroke valve, 14, a two-position four-way pneumatic reversing valve, 15, a first one-way valve, 16, a second one-way valve, 17, a third one-way valve, 18, a fourth one-way valve, 19, a left cylinder body, 20, a right cylinder body, 21, a tensioning bolt, 22, a valve body, 23, a movable valve core, 24 and a jacking spring.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 2, an embodiment of a compressed air booster of the present invention includes a cylinder assembly and a pneumatic control assembly connected to the cylinder assembly through a pipe;
wherein, the cylinder body component comprises a cylinder body 1 and a middle isolation ring 2 fixedly arranged at the middle inner cavity part of the cylinder body 1, a left end cover plate 3 and a right end cover plate 4 are respectively arranged at the left end and the right end of the cylinder body 1, a left piston 5 and a right piston 6 are respectively arranged at the left side and the right side of the middle isolation ring 2 in the cylinder body 1, a piston rod 7 is connected between the left piston 5 and the right piston 6, the piston rod 7 moves to penetrate through the central inner hole of the middle isolation ring 2 and is in sealing fit with the central inner hole, the inner cavity of the cylinder body 1 is sequentially separated into an A cavity, a B cavity, a C cavity and a D cavity from left to right by the left end cover plate 3, the left piston 5, the middle isolation ring 2, the right piston 6 and the right end cover plate 4, one side of the middle isolation ring 2 facing the B cavity is provided with a B cavity vent hole 8 for communicating the B cavity and the outside of the cylinder body 1, a C cavity vent hole 9 communicating the C cavity with the outside of the cylinder body 1 is formed in one surface, facing the C cavity, of the middle isolation ring 2, an A cavity vent hole 10 communicating the A cavity with the outside of the cylinder body 1 is formed in the left end cover plate 3, a D cavity vent hole 11 communicating the D cavity with the outside of the cylinder body 1 is formed in the right end cover plate 4, a left end stroke valve 12 is arranged on the left end cover plate 3, a right end stroke valve 13 is arranged on the right end cover plate 4, one end of a movable valve element of the left end stroke valve 12 is communicated with the A cavity, and one end of a movable valve element of the right end stroke valve 13 is communicated with the D cavity;
wherein, the pneumatic control assembly comprises a two-position four-way pneumatic reversing valve 14, a first one-way valve 15, a second one-way valve 16, a third one-way valve 17 and a fourth one-way valve 18, two pneumatic control ends on the two-position four-way pneumatic reversing valve 14, which are used for reversing a valve core to realize passage switching, are respectively connected with the left end stroke valve 12 and the right end stroke valve 13 through pipelines, the two-position four-way pneumatic reversing valve 14 comprises an air inlet port, an air outlet port and a pair of inlet and outlet switching ports, the pair of inlet and outlet switching ports are respectively connected with the B cavity vent hole 8 and the C cavity vent hole 9 through pipelines, the air inlet port is connected with an original compressed air source through a pipeline, the original compressed air source is further connected with a D cavity vent hole 11 through a pipeline and the first one-way valve 15, and is connected with an A cavity vent hole 10 through a pipeline and the second one-way valve 16, and the A cavity vent hole 10 is further connected with an A cavity pressurization output pipeline, still be connected with D chamber pressure boost output pipeline on the D chamber air vent 11, be provided with fourth check valve 18 on the A chamber pressure boost output pipeline, be provided with third check valve 17 on the D chamber pressure boost output pipeline, the export of A chamber pressure boost output pipeline and D chamber pressure boost output pipeline forms compressed air's pressurized air delivery outlet after connecting together.
Preferably, the pressurised air output is connected to an air bottle by a conduit.
As a preferable scheme of the cylinder block assembly in this embodiment, the cylinder block 1 includes a left cylinder block 19 and a right cylinder block 20 which are independent, the intermediate isolation ring 2 is butted between the left cylinder block 19 and the right cylinder block 20, and the left end cover plate 3 and the right end cover plate 4 axially clamp the left cylinder block 19, the intermediate isolation ring 2 and the right cylinder block 20 through a plurality of tightening bolts 21 and nuts distributed on the periphery of the cylinder block 1.
Preferably, both ends of the piston rod 7 are respectively in threaded connection with the left piston 5 and the right piston 6.
Preferably, the stroke valves 12 and 13 include a valve body 22 and the movable valve core 23 movably disposed in the valve body 22, the valve body 22 is fixed on the cover plates 3 and 4, a top pressure spring 24 is disposed between the other end of the movable valve core 23 and the valve body 22, and the original compressed air source is connected to a space of the top pressure spring 24 between the movable valve core 23 and the valve body 22 through a pipeline.
The working principle of the embodiment is as follows:
when the booster is connected with an original compressed air source, the compressed air respectively enters a booster D cavity and a booster A cavity through a first one-way valve 15 and a second one-way valve 16, and then reaches a third one-way valve 17 and a fourth one-way valve 18 through a booster output pipeline to be led to an air bottle; the other path of the compressed air leads to a two-position four-way pneumatic reversing valve 14, the two-position four-way pneumatic reversing valve controls 14 to enter a C cavity/B cavity of the booster, when the two-position four-way pneumatic reversing valve 14 is in a right working state, the compressed air leads to the C cavity through the two-position four-way pneumatic reversing valve 14, the B cavity leads to the atmosphere, the A cavity and the C cavity have the pressure of the compressed air at the same time, a piston assembly is pushed to move right jointly to force the pressure of the D cavity to rise, the D cavity outputs high-pressure air to close a first one-way valve 15, a third one-way valve 17 is opened to charge air to an air bottle, when the piston assembly reaches the right end, a piston jacks a right end stroke valve 13, the high-pressure air reaches a control end of the two-position four-way pneumatic reversing valve 14 through the right end stroke valve 13 and reverses the two-position four-way pneumatic reversing valve 14 to switch the two-position four-way pneumatic reversing valve 14 to a left working state, at the moment, the two-position four-way pneumatic reversing valve 14 inflates the booster B cavity through a pipeline, the B cavity and the D cavity have compressed air pressure simultaneously, the piston assembly is pushed to move left to force the pressure of the A cavity to rise, the A cavity outputs high-pressure air to close the second one-way valve 16, the fourth one-way valve 18 is opened to inflate the air bottle, when the piston assembly reaches the left end, the piston props the left end stroke valve 12, the high-pressure air reaches the control end of the two-position four-way pneumatic reversing valve 14 through the left end stroke valve 12 and reverses the two-position four-way pneumatic reversing valve 14, and the operation is repeated in this way until the pressure of the air bottle reaches the pressure of the A/D cavity and is automatically started when the pressure of the air bottle is lower than the pressure of the A/D cavity.
The method for calculating the boost multiple of the compressed air booster of the present embodiment is as follows: the diameter of the pistons 5, 6 is X, the diameter of the piston rod 7 is Y, and the pressure increase factor of the compressed air booster is (X) without accounting for frictional resistance2+(X2-Y2))÷X2。
For example, assuming that the piston diameter of the compressed air booster is 200mm and the piston rod diameter is 50mm, the supercharging ratio of the compressed air booster is 1.9375 times as calculated by the above method. If the original pressure of the compressed air is 10Bar, the boosted compressed air pressure reaches 19.375 Bar.
Preferably, the compressed air booster of the present embodiment and the air tank connected to the pressurized air output port of the compressed air booster may be used as one basic booster unit, and the plurality of basic booster units are connected in series through a pipeline to form a step-by-step boost, thereby further increasing the boost ratio. For example, the supercharging multiple of the compressed air output by the last stage obtained after three basic supercharging units are connected in series is 1.9375 × 1.9375 × 1.9375-7.27 times.
The beneficial effect of this embodiment is: the device has the advantages of simple structure, safe and reliable use, capability of recompressing the compressed air by utilizing the thrust difference generated by the compressed air, capability of recompressing the compressed air by self, no need of any power cable, motor or other driving devices, capability of saving a lot of cost when used in a specific area, and good economic benefit.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A compressed air booster comprising a cylinder assembly and a pneumatic control assembly connected to said cylinder assembly by a conduit;
wherein, the cylinder body component comprises a cylinder body and a middle isolation ring fixedly arranged at the middle inner cavity part of the cylinder body, the left end and the right end of the cylinder body are respectively provided with a left end cover plate and a right end cover plate, the left side and the right side of the middle isolation ring in the cylinder body are respectively provided with a left piston and a right piston, a piston rod is connected between the left piston and the right piston, the piston rod moves to penetrate through the central inner hole of the middle isolation ring and is in sealing fit with the central inner hole, the inner cavity of the cylinder body is sequentially divided into a cavity A, a cavity B, a cavity C and a cavity D by the left end cover plate, the left piston, the middle isolation ring, the right piston and the right end cover plate from left to right, one surface of the middle isolation ring facing the cavity B is provided with a cavity B vent hole for communicating the cavity B and the outer part of the cylinder body, one surface of the middle isolation ring facing the cavity C is provided with a cavity C vent hole for communicating the cavity C and the outer part of the cylinder body, the left end cover plate is provided with an A cavity vent hole for communicating the A cavity with the outside of the cylinder body, the right end cover plate is provided with a D cavity vent hole for communicating the D cavity with the outside of the cylinder body, the left end cover plate is provided with a left end stroke valve, the right end cover plate is provided with a right end stroke valve, one end of a movable valve core of the left end stroke valve is communicated with the A cavity, and one end of the movable valve core of the right end stroke valve is communicated with the D cavity;
wherein, the pneumatic control assembly comprises a two-position four-way pneumatic reversing valve, a first one-way valve, a second one-way valve, a third one-way valve and a fourth one-way valve, two pneumatic control ends used for reversing the valve core to realize passage switching on the two-position four-way pneumatic reversing valve are respectively connected with the left end stroke valve and the right end stroke valve through pipelines, the two-position four-way pneumatic reversing valve comprises an air inlet port, an air outlet port and a pair of inlet and outlet switching ports, the pair of inlet and outlet switching ports are respectively connected with the B cavity vent hole and the C cavity vent hole through pipelines, the air inlet port is connected with an original compressed air source through a pipeline, the original compressed air source is also connected with a D cavity vent hole through a pipeline and the first one-way valve and is connected with an A cavity vent hole through a pipeline and the second one-way valve, and an A cavity vent hole is also connected with an A cavity pressurization output pipeline, still be connected with D chamber pressure boost output pipeline on the D chamber air vent, be provided with the fourth check valve on the A chamber pressure boost output pipeline, be provided with the third check valve on the D chamber pressure boost output pipeline, the export of A chamber pressure boost output pipeline and D chamber pressure boost output pipeline forms compressed air's pressurized air delivery outlet after connecting together.
2. A compressed air booster according to claim 1 wherein said booster air output is connected to an air tank by tubing.
3. The booster of claim 1 wherein said cylinder block comprises a left and right independent cylinder block, said intermediate cage is abutted between said left and right cylinder block, and said left and right end cover plates are axially clamped by a number of tightening bolts and nuts distributed around the periphery of said cylinder block.
4. The compressed air booster according to claim 1, wherein both ends of the piston rod are respectively screwed with the left piston and the right piston.
5. The booster of claim 1 wherein the stroke valve comprises a valve body and the movable spool movably disposed in the valve body, the valve body is fixed to the cover plate, a top pressure spring is disposed between the other end of the movable spool and the valve body, and the source of compressed air is connected to a top pressure spring space between the movable spool and the valve body through a pipe.
6. A compressed air booster according to claim 5 wherein the diameter of the piston is X, the diameter of the piston rod is Y and the boost ratio of the compressed air booster without accounting for frictional resistance is (X)2+(X2-Y2))÷X2。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202210186946.6A CN114576132A (en) | 2022-02-28 | 2022-02-28 | Compressed air booster |
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CN202210186946.6A CN114576132A (en) | 2022-02-28 | 2022-02-28 | Compressed air booster |
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CN114576132A true CN114576132A (en) | 2022-06-03 |
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CN202210186946.6A Pending CN114576132A (en) | 2022-02-28 | 2022-02-28 | Compressed air booster |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115030880A (en) * | 2022-07-02 | 2022-09-09 | 梅志文 | Pneumatic vacuum pump |
CN115479009A (en) * | 2022-08-16 | 2022-12-16 | 江苏省肿瘤医院 | Gas booster for pneumatic pipeline transmission system of hospital |
-
2022
- 2022-02-28 CN CN202210186946.6A patent/CN114576132A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115030880A (en) * | 2022-07-02 | 2022-09-09 | 梅志文 | Pneumatic vacuum pump |
CN115479009A (en) * | 2022-08-16 | 2022-12-16 | 江苏省肿瘤医院 | Gas booster for pneumatic pipeline transmission system of hospital |
CN115479009B (en) * | 2022-08-16 | 2024-05-31 | 江苏省肿瘤医院 | Gas booster for pneumatic pipeline transmission system of hospital |
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