CN210644905U

CN210644905U - Ring pump foam proportion mixing device for water pump

Info

Publication number: CN210644905U
Application number: CN201921019902.4U
Authority: CN
Inventors: 潘恩富
Original assignee: Zhejiang Donghai Ruipu Science & Technology Co ltd
Current assignee: Zhejiang Donghai Ruipu Science & Technology Co ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-06-02
Anticipated expiration: 2029-07-02

Abstract

The utility model discloses a ring pump foam proportion mixing arrangement for water pump, its technical scheme main points are including the pump body and foam hybrid system, the pump body is including pump cover, pump case and the pump seat that connects according to the cooperation in order, the foam hybrid system include foam proportion control valve, cover establish the ring pump foam proportion mixer of foam proportion control valve lower extreme and with pump body space connection's business turn over water system, ring pump foam proportion mixer spatial connection has foam conveying system, foam conveying system passes through ball valve switch and pump body space connection. The utility model aims at providing a can be used for the water pump foam system integrated design of the conflagration etc. that oil fire, chemistry cause, reach the water pump and both can be used to the water and put out a fire, also can be used to the foam effect of putting out a fire.

Description

Ring pump foam proportion mixing device for water pump

Technical Field

The utility model belongs to the technical field of the engine, more specifically the theory that says so, it relates to an engine starting device, a ring pump foam proportioning device who is used for the water pump very much.

Background

Water pumps are machines that deliver or pressurize a liquid. It transfers the mechanical energy of prime mover or other external energy to liquid to increase the energy of liquid, and is mainly used to transfer liquid including water, oil, acid-base liquid, emulsion, suspoemulsion and liquid metal. In both heavy industry and light industry, national defense construction and military equipment, advanced science and technology and daily life, pumps are needed everywhere and are operated everywhere. Therefore, the water pump is one of important products in the mechanical industry, is machine equipment which is necessary to develop modern industry, agriculture, national defense and scientific technology, and has important practical significance in mastering, using and maintaining knowledge and skills.

At present, the water pump on the market is mostly for single use water puts out a fire, but in the face of some special cases, light water is put out a fire and can be prolonged the time of putting out a fire, and can not effectually put out a fire, can not guarantee to put out a fire the rescue at the very first time. For example, fire pumps are mostly only used for water fire fighting, but in the case of oil fire or chemical fire fighting, the fire pumps need longer time to extinguish the fire, often fail to achieve the intended target, and cannot fight the fire in time, thereby causing excessive loss. Although there is a similar method of adding a foam rod in front of a water gun for ejecting foam, the method has obvious defects that the foam can not be mixed and ejected in time, the foam effect is poor, the formation amount is small, and the fire extinguishing efficiency for oil, chemistry and the like is extremely low.

In summary, the main problems of the water pumps on the market today are: (1) if the foam liquid is effectively mixed by combining with a water pump, foam is sprayed out for extinguishing fire; (2) how to prevent the foam from entering the water pump and causing corrosion phenomenon; (3) how to prevent the phenomenon of easy flameout and shutdown caused by the overweight load of the water pump due to a large amount of foam generated by the pump body.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can be used for the water pump foam system integrated design of the conflagration etc. that oil fire, chemistry cause, reach the water pump and both can be used to water and put out a fire, also can be used to the foam effect of putting out a fire.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a ring pump foam proportioning device for water pump, includes the pump body and foam hybrid system, the pump body is including pump cover, pump case and the pump seat that cooperate the setting in proper order, the foam hybrid system includes foam proportion control valve, cover establish the ring pump foam proportioning device of foam proportion control valve lower extreme and with pump body spatial connection's business turn over water system, ring pump foam proportioning device spatial connection has foam conveying system, foam conveying system passes through ball valve switch and pump body spatial connection.

The small ball valve switch is evolved from a plug valve, and the opening and closing piece of the small ball valve switch is a ball body which rotates 90 degrees around the axis of a valve rod to realize the purpose of opening and closing the valve. The small ball valve switch is mainly used for cutting off, distributing and changing the flowing direction of a medium on a pipeline, is designed into a ball valve with a V-shaped opening, and also has a good flow regulation function. The ball valve switch has the advantages of simple structure, good sealing performance, small volume, light weight, less material consumption, small installation size, small driving moment, simple and convenient operation and easy realization of quick opening and closing within a certain nominal size range.

For more efficient water-foam integration, it is preferred that the water inlet and outlet system comprises a first outlet of a three-way valve spatially connected to the pump-ring foam proportioner, a second outlet and a third outlet of the three-way valve being connected to the foam water inlet and the foam concentrate outlet, respectively.

In order to achieve the circulation effect, preferably, a foam water inlet switch matched with the foam water inlet is arranged on the pump base, and a pressure water return port matched with the foam liquid outlet is arranged on the pump cover.

Preferably, a pressure water inlet pipe is arranged between the foam water inlet switch and the foam water inlet, and a pressure water return pipe is arranged between the pressure water return port and the foam liquid water outlet.

Preferably, the ring pump foam proportioner comprises a first main body and a second main body, and one side of the second main body is provided with a first through hole which is connected with the space of the foam conveying system.

In order to facilitate disassembly and assembly, preferably, the first main body is provided with a first inner screw hole, and the first main body is fixedly connected with the foam proportion adjusting valve through a nut matched with the first inner screw hole.

In order to ensure that the foam proportion adjusting valve is stably fixed at the upper end of the three-way valve, preferably, the lower end of the second main body is provided with a second inner screw hole, and the second inner screw hole is in spatial connection with the water inlet and outlet system through an adjusting screw matched with the second inner screw hole.

In order to improve the sealing property in the case of using foam, it is preferable that the foam delivery system includes a connection port connected to the small ball valve and a foam storage device, and a sealing member is sleeved at a connection position of the connection port and the foam storage device.

Preferably, the foam proportion adjusting valve includes a valve body provided in the foam proportion mixer and a valve cover provided outside the first body.

In order to effectively achieve the mixing ratio of the foam and the water, preferably, the valve body is provided with a second through hole, a third through hole and a fourth through hole, the diameters of which are sequentially reduced, in cooperation with the first through hole.

The utility model has the advantages of that: through the integrated design of the pump body and the foam mixing system, the water pump can achieve a dual-purpose state to deal with different situations, one is to extinguish fire by using water, and the other is to extinguish fire by using foam;

the sealing element arranged on the connecting port is used for preventing fluid leakage and improving reliability, wherein the connecting part is still kept in contact with and slides relatively when foam liquid is sucked out by pressure difference;

the proportional mixing degree of the foam and the water is adjusted through the foam proportional adjusting valve and the ring pump foam proportional mixer, and finally the required foam liquid is generated, so that the phenomenon that the water pump is overloaded due to the production of a large amount of foam is prevented, and flameout and shutdown are avoided;

the foam liquid outlet is connected with the pump cover on the pump body, the foam liquid is discharged from the water outlet through the impeller, and the foam liquid is stirred by the impeller with strong force, so that the foaming efficiency is higher, and the fire extinguishing efficiency is greatly improved;

the small ball valve switch is used for preventing water from flowing back to the foam liquid storage tank;

in order to avoid the problem of foam corrosion, all materials used are corrosion-resistant materials such as copper, stainless steel and aluminum, and the materials are not afraid of corrosion even if the materials are used for a long time or soaked.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a schematic structural view of the joint of the foam proportion regulating valve of the present invention;

in the figure: 1. A foam proportion regulating valve; 2. a ring pump foam proportioner; 3. a ball valve switch; 4. a connecting port; 5. a foam liquid outlet; 6. a foam water inlet; 7. a foam water inlet switch; 8. a pressure water inlet pipe; 9. a pressure water return pipe; 10. a water outlet; 11. a pump cover; 12. a pump housing; 13. a pump mount; 14. a three-way valve; 15. a pressure water return port; 16. a first through hole; 17. a first inner threaded bore; 18. adjusting screws; 19. a seal member; 20. a valve body; 21 a valve cover; 22. a second via.

Detailed Description

Referring to fig. 1 to 2, the circular pump foam proportion mixing device for the water pump of the embodiment includes a pump body and a foam mixing system, the pump body includes a pump cover 11, a pump case 12 and a pump base 13 which are arranged in a matching manner in sequence, the foam mixing system includes a foam proportion adjusting valve 1, a circular pump foam proportion mixer 2 which is arranged at the lower end of the foam proportion adjusting valve 1 in a sleeved manner, and a water inlet and outlet system which is connected with a pump body space, the circular pump foam proportion mixer 2 is connected with a foam conveying system in space, and the foam conveying system is connected with the pump body space through a small ball valve switch 3.

The flange and the pump seat 13 spatial connection of input of pellet valve switch 3, the flange and the 8 spatial connection of pressure inlet tube of the output of pellet valve switch 3, rotatory pellet valve switch 3's spanner to drive spheroidal cock body, thereby to cutting off and opening of intaking.

The water inlet and outlet system comprises a first outlet of a three-way valve 14 which is spatially connected with the pump ring foam proportioner, and a second outlet and a third outlet of the three-way valve 14 are respectively connected with a foam water inlet 6 and a foam liquid outlet 5.

The pump seat 13 is provided with a foam water inlet switch 7 matched with the foam water inlet 6, and the pump cover 11 is provided with a pressure water return port 15 matched with the foam liquid outlet 5.

A pressure water inlet pipe 8 is arranged between the foam water inlet switch 7 and the foam water inlet 6, and a pressure water return pipe 9 is arranged between the pressure water return port 15 and the foam liquid water outlet 10.

Seamless steel pipes can be used as the pressure water inlet pipe 8 and the pressure water return pipe 9. A seamless steel pipe is a long steel bar having a hollow cross section and no seam at the periphery. The seamless steel pipe has light weight, strong corrosion resistance, high temperature resistance and better impact resistance and fatigue resistance.

The ring pump foam proportioner 2 comprises a first main body and a second main body, wherein one side of the second main body is provided with a first through hole 16 which is connected with a foam conveying system in space.

The first main body is provided with a first inner screw hole 17, and the first main body is fixedly connected with the foam proportion regulating valve 1 through a nut matched with the first inner screw hole 17.

The lower end of the second main body is provided with a second inner screw hole which is connected with the water inlet and outlet system space through an adjusting screw 18 matched with the second inner screw hole.

Both the foam concentrate outlet 5 and the foam inlet 6 may also be connected to the three-way valve 14 by adjusting screws 18. All be equipped with the internal thread in the three through-hole of three-way valve 14, the logical mouth end that foam delivery port 10 and foam water inlet 6 correspond also is equipped with the internal thread, and adjusting screw 18 both ends all are equipped with the external screw thread, through the fixed regulation of external screw thread and internal thread's cooperation.

The foam conveying system comprises a connecting port 4 connected to a small ball valve and a foam storage device, and an adjusting screw 19 is sleeved at the connecting position of the connecting port 4 and the foam storage device. The other side of the connecting port 4 is connected with a foam device, the connecting part of the output end of the foam device and the port of the connecting port 4 is sleeved with an adjusting screw 19, and the tightness and the stability can be still kept when foam is sucked under pressure.

The adjusting screw 19 is a device for preventing fluid leakage, which is formed by at least one pair of end surfaces perpendicular to the rotation axis, and the end surfaces are kept jointed and relatively slide under the action of fluid pressure and the elastic force (or magnetic force) of the compensating mechanism and the matching of auxiliary sealing. The auxiliary seal of the compensating ring is a mechanical seal of the metal bellows called bellows.

The foam proportion regulating valve 1 comprises a valve body 20 arranged in the foam proportion mixer and a valve cover 21 arranged outside the first body.

The valve body 20 is provided with a second through hole 22, a third through hole and a fourth through hole, the diameters of which are sequentially reduced, in cooperation with the first through hole 16.

Through adopting above-mentioned technical scheme, after the start-up water pump engine, the water pump normally operates, can be normal be used for the water intaking to put out a fire, this is high pressure and puts out a fire. If special conditions are found that cannot be extinguished with water, a foam system can be used.

Firstly, a foam water inlet switch 7 on a pump seat 13 is opened, pressure water flowing to a water outlet 10 is branched, the branched pressure water is conveyed to a foam water inlet 6 through a pressure water inlet pipe 8, at the moment, a small ball valve switch 3 is in an unopened state, the entered pressure water directly flows out from a foam liquid outlet 5, flows to a pressure water return opening 15 on a pump cover 11 through a pressure water return pipe 9, and finally returns to a water pump through the pressure water return opening 15 to form a loop. The foam device is connected to the connecting port 4, then the small ball valve switch 3 is opened, pressure water enters the circular pump foam proportion mixer 2 from the inlet, foam flows out of the foam storage device through the connecting port 4 due to pressure difference and enters the circular pump foam proportion mixer 2, foam and water are mixed in proportion through the foam proportion adjusting valve 1, foam liquid mixed in proportion flows into the pressure water return port 15 on the pump cover 11 through the pressure water return pipe 9 and finally flows into the pump shell 12, and the foam liquid flows out of the water outlet 10 after being stirred and foamed through the impeller in the pump shell 12 in a high-speed rotating mode, so that high-concentration foam is formed and used for covering fire.

The pressure difference in the ring pump foam proportion mixer 2 can also be sprayed into the diffusion pipe at high speed through a nozzle by most of water, a negative pressure area is formed between the nozzle and the diffusion pipe, the foam liquid in the foam device is sucked into the negative pressure area through a connecting port 4, enters the diffusion pipe with the pressure water at the same time, flows out from an outlet of the diffusion pipe, and a small part of the pressure water is mixed with the foam mixed liquid flowing out from the diffusion pipe through the foam proportion adjusting valve 1 and then flows out from a foam liquid outlet 5.

The valve cover 21 of the rotary foam proportion adjusting valve 1 can adjust the mixing proportion of the foam mixed liquid, the diameters of three through holes in the valve body 20 are different, and the through holes with different diameters are selected to correspond to the through holes of the ring pump foam proportion mixer 2, so that the set foam and water proportion can be adjusted.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a ring pump foam proportion mixing arrangement for water pump which characterized in that: the pump comprises a pump body and a foam mixing system, wherein the pump body comprises a pump cover, a pump shell and a pump base which are sequentially connected in a matching manner, the foam mixing system comprises a foam proportion adjusting valve, a ring pump foam proportion mixer sleeved at the lower end of the foam proportion adjusting valve and a water inlet and outlet system connected with a pump body space, the ring pump foam proportion mixer space is connected with a foam conveying system, and the foam conveying system is connected with the pump body space through a ball valve switch.

2. The ring pump foam proportioning device for a water pump of claim 1, wherein: the water inlet and outlet system comprises a first outlet of a three-way valve which is in spatial connection with the pump ring foam proportioner, and a second outlet and a third outlet of the three-way valve are respectively connected to a foam water inlet and a foam liquid outlet.

3. The ring pump foam proportioning device for a water pump of claim 2, wherein: the pump seat is provided with a foam water inlet switch matched with the foam water inlet, and the pump cover is provided with a pressure water return port matched with the foam liquid outlet.

4. A ring pump foam proportioning device for a water pump according to claim 3 wherein: a pressure water inlet pipe is arranged between the foam water inlet switch and the foam water inlet, and a pressure water return pipe is arranged between the pressure water return port and the foam liquid water outlet.

5. The ring pump foam proportioning device for a water pump of claim 1, wherein: the ring pump foam proportioner comprises a first main body and a second main body, wherein one side of the second main body is provided with a first through hole which is connected with a foam conveying system in space.

6. A ring pump foam proportioning device for a water pump according to claim 5 wherein: the first main body is provided with a first inner screw hole and is fixedly connected with the foam proportion adjusting valve through a nut matched with the first inner screw hole.

7. A ring pump foam proportioning device for a water pump according to claim 5 wherein: and a second inner screw hole is formed in the lower end of the second main body and is in spatial connection with the water inlet and outlet system through an adjusting screw matched with the second inner screw hole.

8. The ring pump foam proportioning device for a water pump of claim 1, wherein: the foam conveying system comprises a connecting port connected to the small ball valve and a foam storage device, and a sealing element is sleeved at the connecting position of the connecting port and the foam storage device.

9. The ring pump foam proportioning device for a water pump of claim 1, wherein: the foam proportion regulating valve comprises a valve body arranged in the foam proportion mixer and a valve cover arranged on the outer side of the first main body.

10. The ring pump foam proportioning device for a water pump of claim 9, wherein: the valve body is matched with the first through hole and is provided with a second through hole, a third through hole and a fourth through hole, wherein the diameters of the second through hole, the third through hole and the fourth through hole are sequentially reduced.