Fire pump with manual and automatic integrated exhaust valve

Abstract

The fire pump comprises a motor and a pump body, the pump body is in transmission connection with the motor, the manual-automatic integrated exhaust valve is installed at the position, close to the top of the pump body, of the pump body, and the manual-automatic integrated exhaust valve comprises an exhaust valve body, an exhaust connector, an exhaust pipe and an automatic exhaust mechanism. The bottom of the exhaust valve body is communicated with the pump body through an exhaust pipe, and the exhaust connector is installed on the top of the exhaust valve body and provided with an automatic exhaust hole leading to the exhaust valve body. The automatic exhaust mechanism is installed in the exhaust valve body and comprises a floating ball and a sealing valve rod which is distributed in the vertical direction and can move up and down, the floating ball is fixed to the lower end of the sealing valve rod, a conical plug part is arranged on the sealing valve rod, and the conical plug part is used for blocking the automatic exhaust hole under the acting force of the floating ball when the water level in the exhaust valve body rises. According to the utility model, the exhaust effect can be obviously improved, the operation of the fire pump is more stable, and the working efficiency and the performance are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire pump technical field, especially a fire pump with hand automatic integrated exhaust valve. BACKGROUND

[0002] As the core component of the fire fighting system, the fire pump is responsible for providing the required pressure and flow for fire fighting equipment, and its performance is directly related to the fire extinguishing efficiency in the early stage of fire. During the operation of the fire pump, air may be left in the pump body or gas may be sucked in during use. If these gases are not promptly removed, they will affect the pumping efficiency and stability of the fire pump, and in severe cases, the fire pump may not work normally.

[0003] Currently, in the design of traditional fire pumps, the exhaust problem has always been an aspect that needs to be focused on but has not been perfectly solved. Traditional fire pumps are usually equipped with a separate manual exhaust hole. In an emergency, relying on manual exhaust by personnel may delay time, and the manual exhaust hole may be blocked by dust, debris, etc. during use, or may be rusted and unable to open due to environmental moisture, which will prevent air from being exhausted, thereby affecting the water pumping effect and water supply quality of the fire pump. In addition, in actual use, it often happens that the exhaust hole is opened and then forgotten to close due to the operation level of personnel, thereby affecting the normal water supply of the fire pump. Therefore, it is necessary to improve the existing technology to overcome the defects in the prior art. SUMMARY

[0004] To solve the above technical problems, the utility model provides a fire pump with hand automatic integrated exhaust valve, which aims to design a fire pump with an integrated exhaust valve that integrates manual and automatic exhaust functions, to achieve fast, simple and efficient exhaust operation of the fire pump, while maintaining cost effectiveness and maintenance simplicity.

[0005] The utility model discloses a fire pump with hand automatic integrated exhaust valve, which solves the technical problems of the prior art.

[0006] As a further improvement of the utility model, the conical plug part is arranged at the middle part of the sealing valve rod, the upper end of the sealing valve rod is inserted into the automatic exhaust hole, and the sealing valve rod and the automatic exhaust hole are gap-fitted.

[0007] As a further improvement of the utility model, the middle part of the exhaust valve body is fixed with a valve core baffle, the valve core baffle is used for stopping the conical plug part when the water level in the exhaust valve body drops, and the upper end of the sealing valve rod is at least partially kept inserted into the automatic exhaust hole.

[0008] As a further improvement of the utility model, the middle part of the valve core baffle is provided with a guide hole and a grid hole distributed around the outer side of the guide hole, and the sealing valve rod is slidingly inserted into the guide hole.

[0009] As a further improvement of the utility model, the exhaust valve body comprises a valve cover and a valve body, the valve cover is fixedly installed at the top of the valve body, the top of the valve body is provided with a step along the inner ring, the valve core baffle is arranged on the step, and a first O-ring is installed between the valve core baffle and the valve cover.

[0010] As a further improvement of the utility model, the valve cover is provided with a manual exhaust hole at the position close to the top of the valve cover, and a first plug is installed on the manual exhaust hole.

[0011] As a further improvement of the utility model, the valve body is provided with a drain hole at the position close to the bottom of the valve body, and a second plug is installed on the drain hole.

[0012] As a further improvement of the utility model, a second O-shaped ring is installed on the conical plug part, and the lower end of the automatic exhaust hole is expanded outward into a conical shape matching the conical plug part.

[0013] As a further improvement of the utility model, the fire pump with the hand-automatic integrated exhaust valve further comprises an exhaust elbow, one end of the exhaust elbow is connected to the exhaust joint, and the other end of the exhaust elbow is distributed along the horizontal direction or downward.

[0014] As a further improvement of the utility model, a maintenance valve is arranged on the exhaust pipe, and the exhaust pipe is connected to the pump body through the maintenance valve.

[0015] The utility model has the advantages of:

[0016] 1. The utility model provides a fire pump with a hand-automatic integrated exhaust valve, which is installed near the top of the pump body, when the water level drops due to gas accumulation in the exhaust valve body, the floating ball drives the sealing valve rod to drop, thereby opening the automatic exhaust hole, realizing automatic exhaust, significantly improving the exhaust effect, making the operation of the fire pump more stable, and greatly improving the work efficiency and performance, so that the required pressure and flow can be provided faster when a fire occurs, and the fire extinguishing capacity of the fire fighting system is enhanced.

[0017] 2. The utility model seals the automatic exhaust hole by arranging a conical plug part on the sealing valve rod, so that the sealing reliability is good, the leakage risk is low, the leakage is avoided during automatic exhaust, and the system pressure is stable.

[0018] 3. The hand-automatic integrated exhaust valve adopted by the utility model can combine the advantages of manual exhaust and automatic exhaust, can quickly manually exhaust in an emergency, and can rely on the automatic mechanism to maintain the efficiency of daily operation, the complementation of automatic and manual modes ensures that the gas in the pump body can be effectively removed in any case, and the overall reliability of the fire pump is improved.

[0019] 4. The utility model integrates the hand-automatic integrated exhaust valve and the fire pump, has a simple and practical structure, reduces the manufacturing cost and maintenance complexity while ensuring the exhaust function, reduces the potential failure points, and improves the stability and reliability of the whole system. DRAWINGS

[0020] Figure 1 It is a perspective view of the fire pump with a hand-automatic integrated exhaust valve of the utility model;

[0021] Figure 2 It is a perspective view of the hand-automatic integrated exhaust valve in the utility model;

[0022] Figure 3 is an exploded view of the hand-automatic integrated exhaust valve in the utility model;

[0023] Figure 4 is a sectional view of the exhaust valve body, exhaust joint and automatic exhaust mechanism in the utility model;

[0024] Figure 5 is a front view of the sealing valve rod in the utility model.

[0025] The following description is made in conjunction with the accompanying drawings:

[0026] 1, motor; 2, pump body; 3, exhaust valve body; 301, valve cover; 3011, hand exhaust hole; 3012, first plug; 302, valve body; 3021, step; 3022, drain hole; 3023, second plug; 4, exhaust joint; 401, automatic exhaust hole; 5, exhaust pipe; 6, floating ball; 7, sealing valve rod; 701, tapered plug part; 8, valve core baffle; 9, first O-ring; 10, second O-ring; 11, exhaust elbow; 12, maintenance valve. DETAILED DESCRIPTION

[0027] The preferred embodiment of the utility model is described in detail below in conjunction with the accompanying drawings.

[0028] Referring to Figures 1 to 5 , the utility model provides a fire-fighting water pump with hand-automatic integrated exhaust valve, include: motor 1, pump body 2 and hand-automatic integrated exhaust valve. In this embodiment, the fire-fighting water pump is horizontal centrifugal pump, motor 1 and pump body 2 belong to the prior art, pump body 2 is connected to motor 1 by transmission shaft transmission, and motor 1 is used to drive the impeller inside pump body 2 to rotate and work.

[0029] As Figure 1 shown, in this embodiment, the water inlet of pump body 2 is located at the right side, and the water outlet is located at the upper side, the hand-automatic integrated exhaust valve is installed at the position close to the top of the water outlet of pump body 2, so that the gas in pump body 2 can enter the hand-automatic integrated exhaust valve and be discharged outward through the hand-automatic integrated exhaust valve.

[0030] Further, the hand-automatic integrated exhaust valve comprises an exhaust valve body 3, an exhaust joint 4, an exhaust pipe 5 and an automatic exhaust mechanism, the exhaust valve body 3 is distributed along the vertical direction, the bottom of the exhaust valve body 3 is communicated with the pump body 2 through the exhaust pipe 5, and the gas in the pump body 2 can enter the exhaust valve body 3 through the exhaust pipe 5. The exhaust joint 4 is fixedly installed at the top of the exhaust valve body 3 along the vertical direction, and the exhaust joint 4 is provided with an automatic exhaust hole 401 opening into the exhaust valve body 3 along an axis. The automatic exhaust mechanism is installed inside the exhaust valve body 3, and the automatic exhaust mechanism comprises a float ball 6 and a sealing valve rod 7 which is distributed along the vertical direction and can move up and down, the float ball 6 is fixed at the lower end of the sealing valve rod 7, and the sealing valve rod 7 is provided with a tapered plug part 701, the tapered plug part 701 is used for plugging the automatic exhaust hole 401 under the action of the float ball 6 when the water level in the exhaust valve body 3 rises.

[0031] When the water level in the exhaust valve body 3 drops due to gas accumulation, the float ball 6 drops, and the float ball 6 also drives the sealing valve rod 7 to drop, so that the tapered plug part 701 is away from the automatic exhaust hole 401, and the automatic exhaust hole 401 is opened for automatic exhaust; after the gas is exhausted, the water level in the exhaust valve body 3 rises, the float ball 6 rises and resets, and the sealing valve rod 7 is driven to rise, and the automatic exhaust hole 401 is plugged by the tapered plug part 701 on the sealing valve rod 7, and the pump cavity exhaust is completed.

[0032] The hand-automatic integrated exhaust valve is installed near the top of the pump body 2, when the water level in the exhaust valve body 3 drops due to gas accumulation, the float ball 6 drives the sealing valve rod 7 to drop, and then the automatic exhaust hole 401 is opened, automatic exhaust is realized, the exhaust effect is significantly improved, the operation of the fire pump is more stable, the working efficiency and performance are greatly improved, the required pressure and flow can be provided faster when a fire occurs, and the fire extinguishing capacity of the fire fighting system is enhanced; meanwhile, the tapered plug part 701 is arranged on the sealing valve rod 7 to seal the automatic exhaust hole 401, the sealing reliability is good, and the risk of leakage is not easy to occur; further, the hand-automatic integrated exhaust valve is highly integrated with the fire pump, the structure is simple and practical, the manufacturing cost and maintenance complexity are reduced while the exhaust function is ensured, potential fault points are reduced, and the stability and reliability of the whole system are improved.

[0033] Since the application environment of the fire pump often contains a large amount of dust, in order to avoid dust from entering the hand-automatic integrated exhaust valve and affecting the exhaust effect due to blockage, the fire pump with the hand-automatic integrated exhaust valve further comprises an exhaust elbow 11, one end of the exhaust elbow 11 is connected to the exhaust joint 4, and the pipe opening of the other end of the exhaust elbow 11 is distributed along the horizontal direction or downward, which can effectively avoid dust from falling in and greatly reduce the subsequent maintenance burden.

[0034] As Figure 2As shown in the figure, in the embodiment, the exhaust elbow 11 is specifically a 90-degree elbow, the lower end of which is connected to the exhaust joint 4, and the other end is distributed along the horizontal direction.

[0035] Referring to Figure 3 and Figure 4 , the tapered plug part 701 is a circular truncated cone with a diameter gradually decreasing from bottom to top, which is arranged in the middle part of the sealing valve rod 7; the upper and lower parts of the sealing valve rod 7 are both cylindrical, the upper part of the sealing valve rod 7 is inserted into the automatic exhaust hole 401, and the sealing valve rod 7 is in clearance fit with the automatic exhaust hole 401. The automatic exhaust hole 401 plays a certain limiting role on the sealing valve rod 7, and the gap between the sealing valve rod 7 and the automatic exhaust hole 401 can be used to conveniently discharge gas.

[0036] As preferred, the lower end of the automatic exhaust hole 401 is outwardly expanded into a taper matched with the tapered plug part 701, and a second O-ring 10 is installed on the tapered plug part 701 (as shown in the figure), when the water level in the exhaust valve body 3 rises, under the action of the floating ball 6, the tapered plug part 701 abuts against the lower end taper surface of the automatic exhaust hole 401 through the second O-ring 10, the tapered plug part 701 and the lower end taper surface of the automatic exhaust hole 401 extrude the second O-ring 10, thereby greatly improving the sealing performance, ensuring no leakage during the automatic exhaust process, and keeping the system pressure stable. Figure 5

[0037] Further, the middle part of the exhaust valve body 3 is fixed with a valve core baffle 8, which is used to stop the tapered plug part 701 when the water level in the exhaust valve body 3 decreases, and at the same time, the upper end of the sealing valve rod 7 is at least partially inserted into the automatic exhaust hole 401, preventing the sealing valve rod 7 from being pulled out of the exhaust joint 4, which may cause the risk of automatic exhaust failure.

[0038] In the utility model, the exhaust valve body 3 includes a valve cover 301 and a valve body 302, the valve cover 301 is fixedly installed on the top of the valve body 302. Specifically, flange parts are arranged on the valve cover 301 and the valve body 302, and the flange part of the valve cover 301 is fixed with the flange part of the valve body 302 through a plurality of screws. The top of the valve body 302 is provided with an annular step 3021 along the inner ring, the valve core baffle 8 is circular, and the valve core baffle 8 is arranged on the step 3021, and a first O-ring 9 is arranged between the valve core baffle 8 and the valve cover 301, so as to ensure the sealing performance between the valve cover 301 and the valve body 302.

[0039] Referring to Figure 3 ​The middle part of the valve core baffle 8 is provided with a guide hole and a plurality of grid holes distributed around the outside of the guide hole, the grid holes being capable of allowing liquid and gas to pass through, and the sealing valve rod 7 is slidingly inserted into the guide hole. When the water level in the exhaust valve body 3 rises or falls, the sealing valve rod 7 is guided by the guide hole, so as to ensure the stability of the up-and-down movement of the sealing valve rod 7 following the floating ball 6.

[0040] It is worth mentioning that the valve cover 301 in the utility model is provided with a manual exhaust hole 3011 near the top position thereof, and a first plug 3012 is installed on the manual exhaust hole 3011. The manual exhaust hole 3011 is arranged on the exhaust valve body 3, when the automatic exhaust function fails or rapid exhaust is needed, the first plug 3012 can be manually removed by an operator, the manual exhaust hole 3011 is opened, the exhaust passage is forcibly opened, and rapid exhaust is realized. It can be seen that the hand-automatic integrated exhaust valve design adopted by the utility model can combine the advantages of manual exhaust and automatic exhaust, in an emergency, rapid manual exhaust can be realized, and the automatic mechanism can be relied on to maintain the efficiency of daily operation, the complementation of the automatic and manual modes ensures that the gas in the pump body 2 can be effectively removed in any case, and the overall reliability of the fire-fighting water pump is improved.

[0041] In the utility model, a filter screen is also installed near the lower end position of the valve body 302 inside, so as to filter out larger impurities and prevent the manual exhaust hole 3011 and the automatic exhaust hole 401 from being blocked.

[0042] In addition, the fire-fighting water pump with the hand-automatic integrated exhaust valve further comprises a maintenance valve 12, and the exhaust pipe 5 is connected to the pump body 2 through the maintenance valve 12. Specifically, the pump body 2 is provided with an exhaust port near the top of the water outlet, the diameter of the exhaust port can be selected according to the specifications of the fire-fighting water pump, one end of the maintenance valve 12 is threadedly fixed to the exhaust port, and the other end of the maintenance valve 12 is threadedly fixed to the exhaust pipe 5; wherein the exhaust pipe 5 is also a 90° elbow pipe. When the hand-automatic integrated exhaust valve needs to be maintained, the maintenance valve 12 is closed, so as to prevent the water in the pump body 2 from leaking, and at the same time, the normal operation of the fire-fighting water pump is not affected.

[0043] The valve body 302 is provided with a drain hole 3022 near the bottom position thereof, and a second plug 3023 is installed on the drain hole 3022. When the hand-automatic integrated exhaust valve needs to be maintained, the second plug 3023 can be disassembled, and the water in the exhaust valve body 3 is drained, so as to facilitate the maintenance.

[0044] Therefore, the fire pump with the hand-automatic integrated exhaust valve has the advantages that when the water level in the exhaust valve body 3 is lowered due to gas accumulation, the float ball 6 drives the sealing valve rod 7 to descend, and then the automatic exhaust hole 401 is opened, automatic exhaust is realized, the exhaust effect is improved significantly, the operation of the fire pump is more stable, the working efficiency and performance are greatly improved, the required pressure and flow can be provided faster when a fire occurs, the fire extinguishing capacity of the fire fighting system is enhanced, the sealing reliability of the automatic exhaust hole 401 is good, the leakage risk is not prone to occur, the leakage is prevented during the automatic exhaust process, the system pressure is stable, the hand-automatic integrated exhaust valve is combined with the advantages of manual exhaust and automatic exhaust, the gas in the pump body 2 can be effectively exhausted under any condition, the overall reliability of the fire pump is improved, the hand-automatic integrated exhaust valve is highly integrated with the fire pump, the structure is simple and practical, the manufacturing cost and maintenance complexity are reduced while the exhaust function is ensured, potential failure points are reduced, and the stability and reliability of the entire system are improved.

[0045] In the above description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the above description is only a preferred embodiment of the present application, and the present application can be implemented in many other ways different from those described herein, so the present application is not limited to the above disclosed specific implementation. Meanwhile, any person skilled in the art can make many possible changes and modifications to the technical solutions of the present application, or modify equivalent embodiments, without departing from the scope of the technical solutions of the present application, by using the disclosed methods and technical contents. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the scope of the technical solutions of the present application, still belongs to the protection scope of the technical solutions of the present application.

Claims

1. A fire-fighting pump with integrated hand and automatic exhaust valve, comprising a motor (1) and a pump body (2), the pump body (2) being drivingly connected to the motor (1), the motor (1) being used to drive the impeller inside the pump body (2) to rotate and work; characterized in that: The pump body (2) is provided with a hand-automatic integrated exhaust valve near the top position of the pump body (2), the hand-automatic integrated exhaust valve comprises an exhaust valve body (3), an exhaust joint (4), an exhaust pipe (5) and an automatic exhaust mechanism, the bottom of the exhaust valve body (3) is communicated with the pump body (2) through the exhaust pipe (5), the exhaust joint (4) is installed at the top of the exhaust valve body (3), and the exhaust joint (4) is provided with an automatic exhaust hole (401) leading to the exhaust valve body (3); the automatic exhaust mechanism is installed inside the exhaust valve body (3) and comprises a floating ball (6) and a sealing valve rod (7) which is vertically distributed and can move up and down, the floating ball (6) is fixed at the lower end of the sealing valve rod (7), and a tapered plug part (701) is arranged on the sealing valve rod (7), the tapered plug part (701) is used for plugging the automatic exhaust hole (401) under the action of the floating ball (6) when the water level in the exhaust valve body (3) rises.

2. The fire pump of claim 1, wherein: The tapered plug part (701) is arranged at the middle part of the sealing valve rod (7), the upper end of the sealing valve rod (7) is inserted into the automatic exhaust hole (401), and the sealing valve rod (7) is in clearance fit with the automatic exhaust hole (401).

3. The fire pump of claim 2, wherein: A valve core baffle (8) is fixed at the middle part of the exhaust valve body (3), the valve core baffle (8) is used for stopping the tapered plug part (701) when the water level in the exhaust valve body (3) drops, and the upper end of the sealing valve rod (7) is at least partially inserted into the automatic exhaust hole (401).

4. The fire pump of claim 3, wherein: The middle part of the valve core baffle (8) is provided with a guide hole and a grid hole which is distributed around the outside of the guide hole, and the sealing valve rod (7) is slidingly inserted into the guide hole.

5. The fire pump of claim 3, wherein: The exhaust valve body (3) comprises a valve cover (301) and a valve body (302), the valve cover (301) is fixedly installed at the top of the valve body (302); the top of the valve body (302) is provided with a step (3021) along the inner ring, the valve core baffle (8) is arranged on the step (3021), and a first O-shaped ring (9) is arranged between the valve core baffle (8) and the valve cover (301).

6. The fire pump of claim 5, wherein: The valve cover (301) is provided with a manual exhaust hole (3011) near the top position of the valve cover (301), and a first plug (3012) is arranged on the manual exhaust hole (3011).

7. The fire pump of claim 5, wherein: The valve body (302) is provided with a drain hole (3022) near the bottom position of the valve body (302), and a second plug (3023) is arranged on the drain hole (3022).

8. The fire pump of claim 1, wherein: A second O-shaped ring (10) is arranged on the tapered plug part (701), and the lower end of the automatic exhaust hole (401) is expanded outwardly into a taper which is matched with the tapered plug part (701).

9. The fire pump of claim 1, wherein: An exhaust elbow (11) is further arranged, one end of the exhaust elbow (11) is connected to the exhaust joint (4), and the other end of the exhaust elbow (11) is horizontally or downwardly distributed.

10. The fire pump of claim 1, wherein: The exhaust pipe (5) is provided with an inspection valve (12), and the exhaust pipe (5) is connected to the pump body (2) through the inspection valve (12).

Images