CN220337079U

CN220337079U - Fire pump

Info

Publication number: CN220337079U
Application number: CN202223351140.2U
Authority: CN
Inventors: 殷明
Original assignee: Anhui Heidelo Fluid Equipment Co ltd
Current assignee: Anhui Heidelo Fluid Equipment Co ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2024-01-12
Anticipated expiration: 2032-12-14

Abstract

The utility model discloses a fire pump which comprises a pump shell, impellers rotating in the pump shell, and a water inlet branch pipe and a water outlet branch pipe which are respectively arranged at two sides of the pump shell. According to the utility model, when one impeller is blocked, the rotation direction of the double-shaft motor can be controlled to be changed, so that the other impeller is driven, and the fire pump is provided with the replaceable impeller, so that when one impeller fails, the other impeller is used as a standby, the failure rate of the fire pump is reduced, and the safety of the fire pump is improved.

Description

Fire pump

Technical Field

The utility model relates to the technical field of pumps, in particular to a fire pump.

Background

Pumps are machines that deliver or pressurize fluids. It transmits mechanical energy of the prime mover or other external energy to the liquid, causing the liquid to increase in energy. The pump is mainly used for conveying water, oil, acid-alkali liquor, emulsion, suspension emulsion, liquid metal and other liquids, and can also be used for conveying liquid and gas mixtures and liquids containing suspended solids.

The fire pump is a special fire pump or a common clean water pump reaching national standard fire pump performance requirement and test method GB 6245, most fire water sources supply fire water, the fire pump is required to be pressurized to meet the requirement on water pressure and water quantity during fire extinguishment, the fire pump used in a building fire-fighting system cannot be frequently used due to specific action (emergency fire extinguishment), the pump body is blocked and rusted in a long-time standing state, so that the due action cannot be exerted during fire, in actual use, the fire pump cannot normally run due to the blocking of the fire pump, the condition of extra large loss is caused, and the problem of certain potential safety hazard exists.

Disclosure of Invention

The utility model aims at: in order to solve the problem that the traditional fire pump has certain potential safety hazard, the fire pump is provided.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a fire pump, includes the pump case, rotates the inside impeller of pump case and install respectively intake branch and the play water branch of pump case both sides, its characterized in that, the pump case is provided with two sets of interval distribution, two sets of install biax motor between the pump case, two output shafts of biax motor with two the inboard impeller unidirectional transmission of pump case is connected, biax motor forward or reverse rotation drive respectively two the impeller rotates. The impeller is provided with a ratchet wheel close to the outer part of the output shaft of the double-shaft motor, and the periphery of the impeller is provided with a pawl matched with the ratchet wheel. One side of the impeller, which is close to the double-shaft motor, is of a concave structure, and the ratchet wheel and the pawl are both arranged in the concave of the impeller.

As a further description of the above technical solution:

the input ends of the two water inlet branch pipes are communicated with the connecting water inlet main pipe, and the connecting water inlet main pipe is communicated with the external water tank.

As a further description of the above technical solution:

the two water outlet branch pipes are provided with first control valves, the input ends of the two water outlet branch pipes are communicated with a connecting water outlet main pipe and a maintenance water outlet pipe, the output end of the maintenance water outlet pipe is communicated with an external water tank, the maintenance water outlet pipe is provided with second control valves, and the output end of the connecting water outlet main pipe is communicated with a fire-fighting pipeline.

As a further description of the above technical solution:

when the double-shaft motor rotates in the forward direction or the reverse direction, the two first control valves are respectively opened.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

through the setting of two pump casings and its inside impeller to and the unidirectional transmission connection between biax motor output shaft and the impeller for the output shaft is positive or the rotation of reverse drive two impellers respectively, thereby drive the impeller rotation operation in two pump casings respectively, realize the water inlet of water inlet manifold and the play water of play water outlet manifold on one of them pump casing, thereby when one of them impeller takes place to block, the accessible control changes biax motor rotation direction, thereby drive another impeller, thereby make the fire pump have interchangeable impeller, thereby when one of them impeller breaks down, still another impeller is as reserve, thereby reduced the fault rate of fire pump, thereby promoted the security of fire pump.

Drawings

Fig. 1 shows a schematic perspective view of a structure according to the present utility model;

FIG. 2 is a schematic view showing an internal structure of a pump casing according to an embodiment of the present utility model;

fig. 3 is a schematic top view of a connection between an output shaft and an impeller according to an embodiment of the present utility model;

legend description:

1. a pump housing; 2. a biaxial motor; 201. an output shaft; 3. a water inlet branch pipe; 4. a water outlet branch pipe; 5. a first control valve; 6. connecting a water outlet main pipe; 7. connecting with a water inlet main pipe; 8. maintaining a water outlet pipe; 9. an impeller; 10. a pawl; 11. a ratchet wheel; 12. and a second control valve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: the fire pump comprises a pump shell 1, impellers 9 rotating in the pump shell 1, and a water inlet branch pipe 3 and a water outlet branch pipe 4 which are respectively arranged on two sides of the pump shell 1, and is characterized in that the pump shell 1 is provided with two groups of spaced-apart pump shells 1, a double-shaft motor 2 is arranged between the two groups of pump shells 1, two output shafts 201 of the double-shaft motor 2 are in unidirectional transmission connection with the impellers 9 on the inner sides of the two pump shells 1, and the double-shaft motor 2 rotates in the forward direction or the reverse direction to respectively drive the two impellers 9 to rotate.

Through the arrangement of two pump shells 1 and the impellers 9 inside the pump shells, and the unidirectional transmission connection between the output shaft 201 of the double-shaft motor 2 and the impellers 9, when the output shaft 201 rotates in the forward direction or the reverse direction, the two impellers 9 are respectively driven to rotate, so that the impellers 9 in the two pump shells 1 are respectively driven to rotate, water inlet of the water inlet branch pipe 3 and water outlet of the water outlet branch pipe 4 on one pump shell 1 are realized, when one of the impellers 9 is blocked, the rotation direction of the double-shaft motor 2 can be controlled to be changed, so that the other impeller 9 is driven, so that the fire pump is provided with the replaceable impeller 9, and when one of the impellers 9 breaks down, the other impeller 9 is used as a standby, so that the fault rate of the fire pump is reduced, and the safety of the fire pump is improved.

As shown in fig. 3, a ratchet wheel 11 is arranged on the impeller 9 and close to the outer part of the output shaft 201 of the double-shaft motor 2, a pawl 10 matched with the ratchet wheel 11 is arranged on the periphery of the impeller 9, one side of the impeller 9 close to the double-shaft motor 2 is of a concave structure, and the ratchet wheel 11 and the pawl 10 are arranged in the concave of the impeller 9.

By arranging the ratchet wheel 11 and the pawl 10 in the concave part of the impeller 9, the ratchet wheel 11 and the pawl 10 do not interfere with the flow of water, and the pawl 10 is matched with the ratchet wheel 11 to realize unidirectional driving of the impeller 9 by the output shaft 201.

Specifically, as shown in fig. 1, the input ends of the two water inlet branch pipes 3 are communicated with the water inlet connecting main pipe 7, and the water inlet connecting main pipe 7 is communicated with an external water tank.

The two water inlet branch pipes 3 are connected with the water inlet main pipe 7, so that only a water inlet pipeline of a main body is connected with an external water tank, and a redundant water inlet pipeline is not required to be added.

Specifically, as shown in fig. 1, the two water outlet branch pipes 4 are provided with first control valves 5, the input ends of the two water outlet branch pipes 4 are communicated with the connecting water outlet main pipe 6 and the curing water outlet pipe 8, the output end of the curing water outlet pipe 8 is communicated with an external water tank, the curing water outlet pipe 8 is provided with second control valves 12, and the output end of the connecting water outlet main pipe 6 is communicated with a fire-fighting pipeline.

Through the setting of connecting outlet water trunk 6 to only need the outlet water pipeline of a trunk be connected with outside fire control pipeline can, need not to increase unnecessary outlet water pipeline, the setting of rethread first control valve 5, when biax motor 2 operates, only a first control valve 5 is opened all the time, thereby prevent that one of them outlet water branch pipe 4 from flowing to another outlet pipe 4 when going out water, the setting of maintenance outlet pipe 8, can be used to the regular maintenance test of fire pump, the assurance fire pump is the transition of running of producing, the security of fire pump has further been promoted, and the output and the outside water tank intercommunication of maintenance outlet pipe 8, the rivers backward flow when making the test is in outside water tank, the second control valve 12 on the maintenance outlet pipe 8 is located the off state under the normality, only open when maintaining the test, prevent that the fire pump from being discharged through maintenance outlet pipe 8 and leading to connecting outlet water trunk 6 water pressure to reduce during normal use.

Specifically, as shown in fig. 1, when the biaxial motor 2 rotates in the forward or reverse direction, the two first control valves 5 are opened, respectively.

When the first control valve 5 is in actual use, the controller or the single chip microcomputer can control the double-shaft motor 2 to rotate forward or reversely, one of the impellers 9 is driven to rotate, and at the moment, the first control valve 5 which is positioned in the same pipeline with the impeller 9 is opened, so that the fire pump can operate stably and automatically.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a fire pump, is in including pump case (1), rotation impeller (9) inside pump case (1) and install respectively intake branch (3) and play water branch (4) of pump case (1) both sides, a serial communication port, pump case (1) are provided with two sets of interval distribution, two sets of install biax motor (2) between pump case (1), two output shafts (201) of biax motor (2) are connected with two with the inboard impeller (9) one-way transmission of pump case (1), biax motor (2) forward or reverse rotation drive respectively two impeller (9) rotate, be close to on impeller (9) ratchet (11) are had in the outside of biax motor (2) output shaft (201), pawl (10) that cooperation ratchet (11) used are installed to the periphery of impeller (9), one side that is close to biax motor (2) of impeller (9) is the indent structure, ratchet (11) with pawl (10) all set up in impeller (9).

2. A fire pump according to claim 1, characterized in that the inlet ends of both said inlet branches (3) are in communication with a connecting inlet main (7), and that said connecting inlet main (7) is in communication with an external water tank.

3. Fire pump according to claim 1, characterized in that the two outlet branch pipes (4) are provided with a first control valve (5), the input ends of the two outlet branch pipes (4) are communicated with a connecting outlet water main pipe (6) and a curing water outlet pipe (8), the output end of the curing water outlet pipe (8) is communicated with an external water tank, the curing water outlet pipe (8) is provided with a second control valve (12), and the output end of the connecting outlet water main pipe (6) is communicated with a fire pipeline.

4. A fire pump according to claim 3, characterized in that the two first control valves (5) are opened when the two shaft motor (2) rotates in forward or reverse direction, respectively.