CN112502997A - Emergent fire pump of formula of diving floats - Google Patents
Emergent fire pump of formula of diving floats Download PDFInfo
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- CN112502997A CN112502997A CN202011380315.5A CN202011380315A CN112502997A CN 112502997 A CN112502997 A CN 112502997A CN 202011380315 A CN202011380315 A CN 202011380315A CN 112502997 A CN112502997 A CN 112502997A
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- pump
- water
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- water pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0606—Canned motor pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/066—Floating-units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/12—Combinations of two or more pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a floating and submerging type emergency fire pump, and relates to the field of water pumps. The floating and submerging type emergency fire pump comprises a first water pump, a floating ball, a fire joint and a first cable, wherein a first water inlet is formed in the bottom end of the first water pump, and a first water outlet is formed in the top end of the first water pump; the floating ball is connected with the first water pump and used for enabling the first water pump to float on the water surface; the fire-fighting joint is connected with the first water outlet; one end of the first cable is connected with the first water pump, and the other end of the first cable is suitable for being connected with an external power supply. The first water pump can be used under complex water conditions, water can be discharged quickly, and the function of emergency fire fighting tasks on a ship can be effectively and quickly realized.
Description
Technical Field
The invention relates to the field of water pumps, in particular to a floating and submerging type emergency fire pump.
Background
At present, two types of emergency fire pumps for ships are mainly adopted, wherein one type is an electric emergency fire pump which is powered by an emergency generator on the ship; the other is a diesel emergency fire pump which is driven by an independent diesel engine. In order to guarantee that emergency fire pump goes out water, the pump must have from the suction ability or the pump package sets up under the waterline, but self priming pump is because structural limitation, there is the problem that the time of going out water is long, and because the reliability is not good when adopting vacuum diversion device, during the operation under the emergency, can easily appear not inhaling the water, if set up the pump package under the waterline, when meetting adverse sea condition, boats and ships seabed door is very easily exposed the surface of water and is caused the sky of inhaling, and because the pump is installed in boats and ships lower position, when the boats and ships intake appears, emergency fire pump is very easily flooded and is caused unable the use.
Disclosure of Invention
The invention aims to solve the problem that the existing emergency fire pump cannot be used due to the limitation of the structure of the emergency fire pump or the external severe environment to a certain extent.
In order to solve the above problems, the present invention provides a floating and submersible emergency fire pump, comprising:
the water pump comprises a first water pump, a second water pump and a water pump, wherein a first water inlet is formed in the bottom end of the first water pump, and a first water outlet is formed in the top end of the first water pump;
the floating ball is connected with the first water pump and used for enabling the first water pump to float on the water surface;
the fire-fighting joint is connected to the first water outlet; and
one end of the first cable is connected with the first water pump, and the other end of the first cable is suitable for being connected with an external power supply.
Further, the emergency fire pump of the floating and submerging type further comprises a second cable and at least one second water pump, the second water pumps are connected with the first water pump in series and located at the bottom end of the first water pump, each second water pump is connected with one second cable, and the second cables are suitable for being connected with the external power supply.
Further, the number of the second water pumps is odd, the number of the second water pumps with the clockwise rotation direction of the motor is one or less than that of the second water pumps with the counterclockwise rotation direction of the motor, and the rotation direction of the motor of the first water pump is counterclockwise or clockwise.
Further, the first water pump comprises a first pump case, a first motor and a first impeller, the first water inlet is formed in the bottom end of the first pump case, the first water outlet is formed in the top end of the first pump case, the first motor is fixed to the middle of the first pump case, a first annular flow channel is formed between the first motor and the first pump case, and the first impeller is driven to rotate by the first motor.
Furthermore, the second water pump is provided with one, the second water pump comprises a second pump case, a second motor and a second impeller, a second water inlet is formed in the bottom end of the second pump case, a second water outlet is formed in the top end of the second pump case, the second motor is fixed in the middle of the second pump case, a second annular flow channel is formed between the second motor and the second pump case, the second impeller is driven to rotate by the second motor, the second water outlet is communicated with the first water inlet, and the rotating direction of the second impeller is opposite to the rotating direction of the first impeller.
Further, a water inlet filter screen is arranged at the second water inlet.
Further, the second motor and the first motor are both direct current permanent magnet motors.
Further, the first pump shell and the second pump shell are both of split structures, the first pump shell comprises an upper shell and a lower shell, the upper shell is detachably connected with the lower shell, and the first pump shell is detachably connected with the second pump shell.
Further, the first motor is the same as the second motor in structure, the first motor comprises a motor shell, a stator and a rotor, the rotor is rotatably connected to the middle of the motor shell, the bottom end of the rotor is suitable for being connected with the first impeller, the stator is fixed in an annular inner cavity of the motor shell, the plurality of stators are arranged around the rotor, an annular shoulder extends from the bottom end of the motor shell, the edge of the annular shoulder is suitable for being arranged between the upper cover shell and the lower cover shell, and an annular through hole for water to pass through is further formed in the annular shoulder.
Further, the emergency fire pump of the floating and submerging type further comprises a hanging ring, and the hanging ring is connected with the first water pump.
Compared with the prior art, the floating and submerging type emergency fire pump provided by the invention has the following technical effects:
through putting into sea water or river lake with first water pump, make first water pump float in the surface of water by the floater, and be connected first water pump and boats and ships through the rope, the bottom of first water pump is soaked under the surface of water all the time under self gravity, the top of first water pump is located the surface of water all the time under the floater effect, make first water pump along with the ship removal through the rope simultaneously, and can make first water pump and the external power supply on the boats and ships be connected the circular telegram through first cable, guarantee that first water pump can also use when the water condition of complicacy, it is more reliable. The problem of current emergent fire pump unable use because of the restriction of self structure or outside adverse circumstances is solved.
Drawings
FIG. 1 is a schematic block diagram of a submergible emergency fire pump according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a first water pump according to an embodiment of the present invention.
Description of the labeling:
1-a first water pump, 11-a first pump shell, 111-an upper cover shell, 1111-a first water outlet, 112-a lower cover shell, 1211-a first water inlet, 12-a first motor, 121-a motor shell, 122-a stator, 123-a rotor, 124-an annular shoulder, 1241-an annular through port, 13-a first impeller, 14-an annular flow channel, 2-a floating ball, 3-a fire-fighting joint, 4-a first cable, 5-a second water pump, 51-a second pump shell, 52-a second motor, 53-a second impeller, 54-a second annular flow channel, 6-a second cable, 7-a water inlet filter screen and 8-a water surface.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Also, in the drawings, the Z-axis represents a vertical, i.e., up-down position, and a positive direction of the Z-axis (i.e., an arrow direction of the Z-axis) represents up and a negative direction of the Z-axis (i.e., a direction opposite to the positive direction of the Z-axis) represents down. It should also be noted that the foregoing Z-axis representation is meant only to facilitate description of the invention and to simplify description, and is not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Referring to fig. 1, the embodiment provides a floating and submerging type emergency fire pump, which comprises a first water pump 1, a floating ball 2, a fire joint 3 and a first cable 4.
The bottom end of the first water pump 1 is provided with a first water inlet 1121, and the top end of the first water pump 1 is provided with a first water outlet 1111; the floating ball 2 is connected with the first water pump 1, and the floating ball 2 is used for enabling the first water pump 1 to float on the water surface 8; the fire-fighting joint 3 is connected to the first water outlet 1111 and can be connected with a fire hose through the fire-fighting joint; one end of the first cable 4 is connected with the first water pump 1, and the other end of the first cable 4 is suitable for being connected with an external power supply.
It should be noted that, the emergency fire pump for ships mainly has two types, one type is an electric emergency fire pump, which is powered by an emergency generator on the ship, the other type is a diesel engine emergency fire pump, which is driven by an independent diesel engine, in order to ensure that the emergency fire pump discharges water, the pump must have self-suction capability or the pump set is arranged under the waterline, but the self-suction pump has a problem of long water discharge time due to structural limitation, and when a vacuum water diversion device is adopted, the reliability is poor, in an emergency situation, water cannot be sucked easily, if the pump set is arranged under the waterline, when severe sea conditions are met, a sea bottom door of the ship is exposed out of the water surface easily to cause air suction, and because the pump is arranged at a lower position of the ship, when the ship enters water, the emergency fire pump is very easily submerged to cause non-use.
In this embodiment, through putting into sea water or river lake first water pump 1, make first water pump 1 float on the surface of water 8 by floater 2, and be connected first water pump 1 and boats and ships through the rope, the bottom of first water pump 1 is submerged under the surface of water all the time under self gravity, the top of first water pump 1 emits the surface of water all the time under the effect of floater 2, make first water pump 1 along with the ship removal through the rope simultaneously, and can make first water pump 1 and the external power supply on the boats and ships be connected the circular telegram through first cable 4, guarantee that first water pump 1 can also use when complicated water condition, it is more reliable, can go out water fast, can be responsible for the emergent fire control task on the ship rapidly effectively.
Here, this embodiment still provides an external power supply who uses with the emergent fire pump of formula of floating and diving, and external power supply adopts storage battery and designs into cart based structure, and this cart based structure outside is provided with the unrestrained safety cover of preventing, and integrated power management system in the safety cover just alone can easily push on the deck.
Referring to fig. 1, preferably, the emergency fire pump further includes a second cable 6 and at least one second water pump 5, the plurality of second water pumps 5 are arranged in series with the first water pump 1 and are located at the bottom end of the first water pump 1, each second water pump 5 is connected with one second cable 6, and the second cables 6 are adapted to be connected with an external power supply.
Here, set up and be located first water pump 1's bottom through a plurality of second water pumps 5 and first water pump 1 series connection for a plurality of water pumps in the emergent fire pump of formula of hiding are multistage serial-type structure, can increase the lift of drawing water, and the result of use is better. For example, when a fire occurs in a ship, if the location of the fire is far away from or higher than the latent emergency fire pump, and the fire point is far away or higher, the fire hose used is also long, and the resistance to water is greater, in this case, if the single first water pump 1 is used, the lift may not be sufficient to supply water to the fire point, resulting in failure of fire extinguishing; and the emergent fire pump of floating and diving formula of multistage serial-type structure that provides in this embodiment, water is discharged through the pressurization of first water pump 1 after being pressurized by at least one second water pump 5 earlier, and its lift is longer, can satisfy the position far away or higher to the ignition point and put out a fire and handle, simultaneously, because the lift is longer, has certain pressure after water is discharged from fire hose, and fire control effect is better.
Preferably, the number of the second water pumps 5 is odd, the number of the second water pumps 5 which are rotated clockwise is one or less more than the number of the second water pumps 5 which are rotated counterclockwise, and the rotation direction of the first water pump 1 is counterclockwise or clockwise.
Here, by setting the number of the second water pumps 5 to be odd number, and by adding the first water pumps 1, the total number of the water pumps is even number, and by designing the water pumps connected in series to rotate, that is, the rotation of the motors of half of the water pumps is counterclockwise, and the rotation of the motors of the other half of the water pumps is clockwise, the whole torsion of the submersible emergency pump due to the rotation can be avoided by the design. For example, the number of the second water pumps 5 can be 3, the turning directions of the motors of the water pumps in the floating and submerging emergency fire pump can be clockwise, anticlockwise, clockwise and anticlockwise in sequence from top to bottom, when the fire pump is powered off, the inertia of the floating and submerging emergency submersible pump in clockwise turning and the inertia of the floating and submerging emergency submersible pump in anticlockwise turning are offset, and then the whole floating and submerging emergency submersible pump cannot be twisted due to the inertia of the internal motors, so that the floating and submerging emergency submersible pump cannot be unstable due to the fact that the floating and submerging emergency submersible pump is connected with a ship through a rope.
Referring to fig. 2, preferably, the first water pump 1 includes a first pump case 11, a first motor 12 and a first impeller 13, the first water inlet 1121 is formed at the bottom end of the first pump case 11, the first water outlet 1111 is formed at the top end of the first pump case 11, the first motor 12 is fixed at the middle portion of the first pump case 11, a first annular flow passage 14 is formed between the first motor 12 and the first pump case 11, and the first impeller 13 is driven by the first motor 12 to rotate.
Here, seawater is sucked from the first water inlet 1121, pressurized through the first annular flow passage 14, and discharged from the first water outlet 1111, so that the seawater can perform a cooling function on the first motor 12 during the ascent. Specifically, after being sucked from the first water inlet 1121, the seawater is in a spiral ascending state under the action of the first impeller 13, that is, the seawater in the state spirally ascends around the first pump housing 11, and can be in all-directional contact with the first pump housing 11, so that the first pump housing 11 is better cooled, the cooling effect of the first motor 12 is better, and the service life of the first motor 12 can be prolonged.
Referring to fig. 1, preferably, the second water pump 5 is provided with one, the second water pump 5 includes a second pump case 51, a second motor 52 and a second impeller 53, a second water inlet is formed at the bottom end of the second pump case 51, a second water outlet is formed at the top end of the second pump case 51, the second motor 52 is fixed in the middle of the second pump case 51, the second water outlet is communicated with the first water inlet 1121, a second annular flow passage 54 is formed between the second motor 52 and the second pump case 51, the second impeller 53 is driven by the second motor 52 to rotate, and the rotation direction of the second impeller 53 is opposite to the rotation direction of the first impeller 13.
Here, as shown in fig. 1, the second water pump 5 is completely submerged in water, the tops of the first water pump 1 and the second water pump 5 are respectively connected to an external power supply on the deck through a first cable 4 and a second cable 6, the steering direction of the first impeller 13 is opposite to the steering direction of the second impeller 53, the influence of rotation inertia of the impellers can be effectively offset, after the first water pump 1 and the second water pump 5 are powered on, seawater sucked in through the second water pump 5 goes upward through a second annular flow passage 54 between a second motor 52 and a second pump shell 51 and enters the first water pump 1 from the top of the second water pump 5 to be continuously pressurized, the fire hose connected through a fire hose joint 3 at the top of the first water pump 1 is conveyed to the deck, and is sprayed to a fire ignition point on the ship through a water gun at the end of the fire hose, so as to.
Referring to fig. 1, preferably, a water inlet screen 7 is disposed at the second water inlet.
Here, through setting up filter screen 7 of intaking, guarantee the sea water and when being extracted one filter effect occasionally, prevent that debris in the sea water from blockking up second water pump 5 and first water pump 1, increase the life of the emergent fire pump of snorkeling formula.
Preferably, the second motor 52 and the first motor 12 are both high speed dc permanent magnet motors.
Here, through adopting the direct current permanent magnet motor of high rotational speed, the impeller diameter just is littleer under the same flow lift, can reduce the volume and the weight of floating formula emergency fire pump. The first motor 12 and the second motor 52 can be dc permanent magnet motors with a motor power of 3.5KW and a rotation speed of 4000 rpm.
Referring to fig. 2, preferably, the first pump housing 11 and the second pump housing 51 are both split type structures, the first pump housing 11 includes an upper casing 111 and a lower casing 112, the upper casing 111 is detachably connected to the lower casing 112, and the first pump housing 11 is detachably connected to the second pump housing 51.
Here, the first and second pump housings 11 and 51 may facilitate the installation and removal maintenance of the first and second motors 12 and 13 and 52 and 53 by such a split structure design.
Referring to fig. 2, preferably, the first motor 12 and the second motor 52 have the same structure, the first motor 12 includes a motor housing 121, a stator 122 and a rotor 123, the rotor 123 is rotatably connected to the middle of the motor housing 121, the bottom end of the rotor 123 is adapted to be connected to the first impeller 13, the stator 122 is fixed in the annular inner cavity of the motor housing 121, the plurality of stators 122 are arranged around the rotor 123, an annular shoulder 124 extends from the bottom end of the motor housing 121, the edge of the annular shoulder 124 is adapted to be disposed between the upper casing 111 and the lower casing 112, and the annular shoulder 124 is further opened with an annular through hole 1241 for passing water.
It will be appreciated that stator 122 may be rotatably coupled within motor casing 121 by bearings, and that the edges of annular shoulder 124 may be bolted to upper housing shell 111 and lower housing shell 112.
Referring to fig. 1, the submergible emergency fire pump preferably further includes a hanging ring 9, and the hanging ring 9 is connected to the first water pump 1.
Here, through setting up rings 9, conveniently put into the sea with the emergent fire pump of dive formula, also be convenient for take out from the sea water.
The terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or an implicit indication of the number of technical features indicated. Thus, features defined as "first," "second," "third," and "fourth" may explicitly or implicitly include at least one of the features.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.
Claims (10)
1. The utility model provides a float and dive formula emergency fire pump which characterized in that includes:
the water pump comprises a first water pump (1), wherein a first water inlet (1121) is formed in the bottom end of the first water pump (1), and a first water outlet (1111) is formed in the top end of the first water pump (1);
the floating ball (2) is connected with the first water pump (1) and is used for enabling the first water pump (1) to float on the water surface (8);
the fire-fighting joint (3) is connected to the first water outlet (1111); and
one end of the first cable (4) is connected with the first water pump (1), and the other end of the first cable (4) is suitable for being connected with an external power supply.
2. Emergency fire pump according to claim 1, characterized in that it further comprises a second cable (6) and at least one second pump (5), said second pump (5) being arranged in series with said first pump (1) and being located at the bottom end of said first pump (1), one second cable (6) being connected to each second pump (5), said second cable (6) being adapted to be connected to said external power source.
3. Emergency fire pump according to claim 2, characterised in that the number of second water pumps (5) is odd, the number of second water pumps (5) with motor steering clockwise is one or less more than the number of second water pumps (5) with motor steering anticlockwise, and the motor steering of the first water pump (1) is anticlockwise or clockwise.
4. The emergency fire pump according to claim 2, wherein the first water pump (1) comprises a first pump housing (11), a first motor (12) and a first impeller (13), the first water inlet (1121) is opened at the bottom end of the first pump housing (11), the first water outlet (1111) is opened at the top end of the first pump housing (11), the first motor (12) is fixed at the middle of the first pump housing (11), a first annular flow passage (14) is formed between the first motor (12) and the first pump housing (11), and the first impeller (13) is driven by the first motor (12) to rotate.
5. The emergency fire pump of claim 4, wherein the second water pump (5) is provided with one, the second water pump (5) comprises a second pump housing (51), a second motor (52) and a second impeller (53), a second water inlet is formed in the bottom end of the second pump housing (51), a second water outlet is formed in the top end of the second pump housing (51), the second motor (52) is fixed in the middle of the second pump housing (51), a second annular flow passage (54) is formed between the second motor (52) and the second pump housing (51), the second impeller (53) is driven by the second motor (52) to rotate, the second water outlet is communicated with the first water inlet (1121), and the rotation direction of the second impeller (53) is opposite to the rotation direction of the first impeller (13).
6. Floating and submerging emergency fire pump according to claim 5, wherein the second water inlet is provided with a water inlet screen (7).
7. Floating and submerging emergency fire pump according to claim 5, wherein the second motor (52) and the first motor (12) are both direct current permanent magnet motors.
8. The emergency fire pump according to claim 5, wherein the first pump casing (11) and the second pump casing (51) are both of a split structure, the first pump casing (11) comprises an upper cover (111) and a lower cover (112), the upper cover (111) is detachably connected with the lower cover (112), and the first pump casing (11) is detachably connected with the second pump casing (51).
9. Floating and submerging emergency fire pump according to claim 8, wherein the first motor (12) and the second motor (52) are identical in structure, the first motor (12) comprises a motor casing (121), a stator (122) and a rotor (123), the rotor (123) is rotatably connected to the middle part of the motor casing (121), the bottom end of the rotor (123) is suitable for being connected with the first impeller (13), the stator (122) is fixed in an annular inner cavity of the motor casing (121), a plurality of stators (122) are arranged around the rotor (123), the bottom end of the motor casing (121) extends with an annular shoulder (124), the edge of the annular shoulder (124) is suitable for being placed between the upper cover casing (111) and the lower cover casing (112), the annular shoulder (124) is also provided with an annular through hole (1241) for water to pass through.
10. Submersible emergency fire pump according to any of claims 1 to 9, further comprising a lifting ring (9), the lifting ring (9) being connected to the first water pump (1).
Priority Applications (1)
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CN202011380315.5A CN112502997A (en) | 2020-11-30 | 2020-11-30 | Emergent fire pump of formula of diving floats |
Applications Claiming Priority (1)
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CN202011380315.5A CN112502997A (en) | 2020-11-30 | 2020-11-30 | Emergent fire pump of formula of diving floats |
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CN112502997A true CN112502997A (en) | 2021-03-16 |
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CN202011380315.5A Pending CN112502997A (en) | 2020-11-30 | 2020-11-30 | Emergent fire pump of formula of diving floats |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2081906U (en) * | 1990-08-21 | 1991-07-31 | 青海省新能源研究所 | Total-enclosed floating pump |
CA2212062A1 (en) * | 1997-08-29 | 1999-02-28 | Mark J. Henrickson | Rapid deployment floating pump station |
CN202040094U (en) * | 2011-05-17 | 2011-11-16 | 北京林业大学 | Floating fire pump component |
CN105041677A (en) * | 2015-06-24 | 2015-11-11 | 台州凌霄泵业有限公司 | Combined submersible pump for wells |
CN108105130A (en) * | 2018-01-31 | 2018-06-01 | 佛山市山凌科技有限公司 | Wind turbine |
-
2020
- 2020-11-30 CN CN202011380315.5A patent/CN112502997A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2081906U (en) * | 1990-08-21 | 1991-07-31 | 青海省新能源研究所 | Total-enclosed floating pump |
CA2212062A1 (en) * | 1997-08-29 | 1999-02-28 | Mark J. Henrickson | Rapid deployment floating pump station |
CN202040094U (en) * | 2011-05-17 | 2011-11-16 | 北京林业大学 | Floating fire pump component |
CN105041677A (en) * | 2015-06-24 | 2015-11-11 | 台州凌霄泵业有限公司 | Combined submersible pump for wells |
CN108105130A (en) * | 2018-01-31 | 2018-06-01 | 佛山市山凌科技有限公司 | Wind turbine |
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Application publication date: 20210316 |