Fire-fighting pressure-stabilizing water supply fire pump
By introducing anti-backflow components and a pressure detection sensor system into the fire pump, the problem of water backflow when the outlet pipe is blocked is solved, achieving reliable and easy-to-operate pressure-stabilized water supply.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2026-03-27
AI Technical Summary
When a fire pump is in use, a blockage in the outlet pipe can easily cause water backflow, and existing technologies cannot effectively solve this problem.
It employs an anti-backflow component and a pressure detection sensor system. The anti-backflow component prevents water from flowing back through a rotating plate and rotating rod structure. When the pressure detection sensor detects a blockage, it controls the solenoid valve to close the water inlet pipe, and then discharges the accumulated water in conjunction with the electric cylinder and sealing plug.
It effectively prevents water backflow, reduces the workload of staff and the probability of water backflow, and improves the stability and reliability of the system.
Smart Images
Figure CN224049359U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fire fighting equipment technical field, especially a kind of fire-fighting steady pressure water supply fire pump. BACKGROUND
[0002] Fire pump is used for fire-fighting pump, fire pump is introduced foreign product, according to different classification mode is divided into different kinds with its full seal, no leakage and corrosion resistance characteristics, it is widely used in environmental protection, water treatment and fire-fighting department, is used to pump and send various liquids, is the ideal pump for creating no leakage, pollution-free civilized workshop and civilized factory with fire-fighting system, the pump type is almost the same, only lift and flow are different, the selection of fire pump should be considered according to process flow, water supply and drainage requirement, etc.
[0003] For the related technology in the above, the inventor believes that the following defects exist: when the fire pump is used, the water is sucked through the water inlet and discharged through the water outlet, in this process, when the water outlet is blocked, the water sucked by the water inlet cannot be discharged through the water outlet. At this time, it is easy to cause the water in the water outlet to flow back. UTILITY MODEL CONTENT
[0004] In order to solve the above problems, the utility model provides a kind of fire-fighting steady pressure water supply fire pump.
[0005] The above technical purpose of the utility model is realized by the following technical scheme: a kind of fire-fighting steady pressure water supply fire pump, including steady pressure fire pump, the one end of the steady pressure fire pump is equipped with first solenoid valve, the one end of the first solenoid valve away from steady pressure fire pump is equipped with water inlet pipe, the other end of the steady pressure fire pump is equipped with control valve, the one end of the control valve away from steady pressure fire pump is equipped with water outlet pipe, the water outlet pipe is provided with anti-backflow assembly for preventing water flow backflow.
[0006] By adopting the above technical scheme, when the steady pressure fire pump is used, the staff starts the steady pressure fire pump, and then the water inlet pipe of the steady pressure fire pump is pumped. Subsequently, it is discharged through the water outlet pipe of the steady pressure fire pump, in this process, the staff can switch the water outlet pipe and the water inlet pipe through the control valve and the first solenoid valve respectively, in this process, when the water outlet pipe is blocked, the anti-backflow assembly can prevent the water flow in the water outlet pipe from flowing back.
[0007] Further, two rotation grooves are formed in the inner wall of the water outlet pipe, the anti-backflow assembly comprises two rotation rods rotatably arranged in the rotation grooves, a fixed plate fixedly arranged on the inner wall of the water outlet pipe and a rotation plate rotatably arranged on the inner wall of the water outlet pipe, the rotation plate and the rotation rod are fixedly connected with each other, and the side wall of the rotation plate close to the water inlet pipe abuts against the side wall of the fixed plate away from the water inlet pipe.
[0008] When the water flows into the water outlet pipe, the water flow impacts the rotating plate, and the rotating plate rotates under the action of the water flow, so that the water flow flows out through the water outlet pipe. When the water outlet pipe is blocked, the water flow accumulated on the side of the rotating plate away from the fixed plate is more. At this time, the rotating plate resets under the action of the water flow. In the process, because the side wall of the rotating plate close to the water inlet pipe abuts against the side wall of the fixed plate away from the water inlet pipe, as shown in Figure 2 specifically, the rotating plate cannot rotate towards the direction close to the water inlet pipe, thereby reducing the probability that the water flow on the side of the rotating plate away from the fixed plate flows into the side of the rotating plate close to the fixed plate, and thereby reducing the probability of backflow of the water flow.
[0009] Further, a torsional spring is fixedly arranged on the side wall of the rotating rod away from the rotating plate, and the other end of the torsional spring is fixedly arranged on the inner wall of the rotating groove.
[0010] By adopting the above technical scheme, the torsional spring reduces the difficulty of resetting the rotating plate, thereby reducing the working difficulty of the staff.
[0011] Further, a pressure detection sensor is arranged on the outer wall of the water outlet pipe, the lower end of the pressure detection sensor penetrates through the water outlet pipe and extends into the water outlet pipe to detect the water outlet pipe, and the pressure detection sensor is electrically connected with the first electromagnetic valve.
[0012] By adopting the above technical scheme, when the water outlet pipe is blocked and the water flow accumulated on the side of the water outlet pipe away from the water inlet pipe is more, the pressure detection sensor detects that the water pressure is increased. At this time, the pressure detection sensor is started, the pressure detection sensor controls the first electromagnetic valve to start through the controller, and thereby the first electromagnetic valve closes the water inlet pipe, thereby reducing the probability that the water in the water inlet pipe continuously flows into the water outlet pipe when the water outlet pipe is blocked.
[0013] Further, a through hole is arranged through the inner wall of the water outlet pipe, and a sealing plug is mounted in the through hole. The sealing plug is made of rubber.
[0014] By adopting the above technical scheme, when the water outlet pipe is blocked, the staff can open the sealing plug to discharge the water in the water outlet pipe, thereby further reducing the probability of backflow of the water flow.
[0015] Further, a support frame with a U-shaped cross section is fixedly arranged on the outer wall of the water outlet pipe, an electric cylinder is fixedly arranged on the side wall of the support frame, the piston rod of the electric cylinder penetrates through the support frame and is fixedly connected with the sealing plug, and the electric cylinder is electrically connected with the pressure detection sensor.
[0016] By adopting the technical scheme, when the water pressure is detected by the pressure detection sensor, the pressure detection sensor starts the electric cylinder through the controller, and then the electric cylinder piston rod is retracted, so that the electric cylinder piston rod moves the sealing plug out of the through hole, thereby discharging the water in the water outlet pipe, and the difficulty of opening and closing the sealing plug by the staff is reduced, thereby reducing the working difficulty of the staff.
[0017] Further, the lower end of the pressure detection sensor is located on the side of the rotating plate away from the rotating plate.
[0018] By adopting the technical scheme, the lower end of the pressure detection sensor is located on the side of the rotating plate away from the rotating plate, which improves the detection accuracy of the pressure detection sensor.
[0019] To sum up, the utility model has the following beneficial effects:
[0020] 1. In the application, when the stable pressure fire pump is used, the staff starts the stable pressure fire pump, and then the water inlet pipe of the stable pressure fire pump is pumped. Subsequently, the water outlet pipe is discharged through the stable pressure fire pump, and in this process, the staff can open and close the water inlet pipe and the water outlet pipe through the control valve and the first electromagnetic valve respectively, and in this process, when the water outlet pipe is blocked, the anti-backflow assembly can prevent the water flow in the water outlet pipe from flowing back.
[0021] 2. In the application, when the water flow flows into the water outlet pipe, the water flow impacts the rotating plate, and then the rotating plate rotates under the action of the water flow, so that the rotating plate rotates under the action of the rotating rod, and then the water flow flows out through the water outlet pipe. When the water outlet pipe is blocked, the water flow accumulated on the side of the rotating plate away from the fixed plate is more. At this time, the rotating plate is reset under the action of the water flow, and in this process, because the side wall of the rotating plate close to the water inlet pipe and the side wall of the fixed plate away from the water inlet pipe abut, as shown in the specific case, the rotating plate cannot rotate towards the water inlet pipe, thereby reducing the probability of the water flow on the side of the rotating plate away from the fixed plate flowing into the side of the rotating plate close to the fixed plate, thereby reducing the probability of the water flow flowing back. Figure 2
[0022] 3. In the application, the torsional spring reduces the difficulty of resetting the rotating plate, thereby reducing the working difficulty of the staff. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is the overall structure schematic diagram of the utility model embodiment;
[0024] Figure 2 It is the cross-sectional structure schematic diagram of the anti-backflow assembly in the utility model embodiment;
[0025] Figure 3 It is the cross-sectional structure schematic diagram of the water outlet pipe and the rotating plate in the utility model embodiment.
[0026] In the diagram: 1. Pressure-stabilizing fire pump; 11. First solenoid valve; 12. Inlet pipe; 13. Control valve; 14. Outlet pipe; 2. Rotating groove; 21. Through hole; 3. Anti-backflow assembly; 31. Rotating rod; 32. Fixing plate; 33. Rotating plate; 4. Torsion spring; 5. Pressure detection sensor; 6. Sealing plug; 7. Support frame; 71. Electric cylinder. Detailed Implementation
[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0028] like Figures 1-3 As shown in the illustration, this application discloses a fire pump for stabilizing water supply, including a pressure-stabilizing fire pump 1, a first solenoid valve 11, an inlet pipe 12, a control valve 13, an outlet pipe 14, an anti-backflow component 3, a torsion spring 4, a pressure detection sensor 5, a sealing plug 6, a support frame 7, and an electric cylinder 71. The first solenoid valve 11 is installed at one end of the pressure-stabilizing fire pump 1. The inlet pipe 12 has a circular tubular structure and is installed at the end of the first solenoid valve 11 away from the pressure-stabilizing fire pump 1. The control valve 13 is installed at the other end of the pressure-stabilizing fire pump 1. The outlet pipe 14 has a circular tubular structure and is installed at the end of the control valve 13 away from the pressure-stabilizing fire pump 1.
[0029] When the pressure-stabilized fire pump 1 is in use, the operator starts the pressure-stabilized fire pump 1, which in turn draws water from the inlet pipe 12 of the pressure-stabilized fire pump 1. Subsequently, the water is discharged through the outlet pipe 14 of the pressure-stabilized fire pump 1. During this process, the operator can open and close the outlet pipe 14 and the inlet pipe 12 respectively through the control valve 13 and the first solenoid valve 11. During this process, if the outlet pipe 14 is blocked, the anti-backflow component 3 can prevent the water in the outlet pipe 14 from flowing back.
[0030] Two symmetrical rotating grooves 2 are formed on the inner wall of the outlet pipe 14. An anti-backflow component 3 is installed on the outlet pipe 14 to prevent water from flowing back. The anti-backflow component 3 includes a rotating rod 31, a fixed plate 32, and a rotating plate 33. Two rotating rods 31 are provided and are rotatably installed in the two rotating grooves 2 respectively, with their axes horizontal. The fixed plate 32 is fixedly installed on the inner wall of the outlet pipe 14, and the rotating plate 33 is rotatably installed on the inner wall of the outlet pipe 14. The rotating plate 33 and the rotating rod 31 are fixed to each other, and the side wall of the rotating plate 33 near the inlet pipe 12 abuts against the side wall of the fixed plate 32 away from the inlet pipe 12.
[0031] When the water flow flows into the water outlet pipe 14, the water flow impacts the rotating plate 33, and the rotating plate 33 is rotated under the action of the water flow, so that the rotating plate 33 is rotated under the action of the rotating rod 31, and then the water flow flows out through the water outlet pipe 14. When the water outlet pipe 14 is blocked, the water flow accumulated on the side of the rotating plate 33 away from the fixed plate 32 is more. At this time, the rotating plate 33 is reset under the action of the water flow. In the process, because the side wall of the rotating plate 33 close to the water inlet pipe 12 abuts against the side wall of the fixed plate 32 away from the water inlet pipe 12, as shown in Figure 2 the rotating plate 33 cannot be rotated towards the water inlet pipe 12, thereby reducing the probability that the water flow on the side of the rotating plate 33 away from the fixed plate 32 flows into the side of the rotating plate 33 close to the fixed plate 32, thereby reducing the probability of water flow backflow.
[0032] In order to reduce the working difficulty of the staff, the torsional spring 4 is fixedly arranged on the side wall of the rotating rod 31 away from the rotating plate 33, and the other end of the torsional spring 4 is fixedly arranged on the inner wall of the rotating groove 2. The torsional spring 4 reduces the difficulty of resetting the rotating plate 33, thereby reducing the working difficulty of the staff.
[0033] The pressure detection sensor 5 is arranged on the outer wall of the water outlet pipe 14, the lower end of the pressure detection sensor 5 penetrates through the water outlet pipe 14 and extends into the water outlet pipe 14 to detect the water outlet pipe 14, and the pressure detection sensor 5 is electrically connected with the first electromagnetic valve 11.
[0034] When the water outlet pipe 14 is blocked, and the water flow accumulated on the side of the water outlet pipe 14 away from the water inlet pipe 12 is more, the pressure detection sensor 5 detects that the water pressure is increased. At this time, the pressure detection sensor 5 is started, the pressure detection sensor 5 controls the first electromagnetic valve 11 to start through the controller, and then the first electromagnetic valve 11 closes the water inlet pipe 12, thereby reducing the probability that the water in the water inlet pipe 12 continuously flows into the water outlet pipe 14 when the water outlet pipe 14 is blocked.
[0035] The through hole 21 is arranged on the inner wall of the water outlet pipe 14, and the sealing plug 6 is arranged in the through hole 21. The sealing plug 6 is made of rubber.
[0036] When the water outlet pipe 14 is blocked, the staff can open the sealing plug 6 to discharge the water in the water outlet pipe 14, thereby further reducing the probability of water flow backflow.
[0037] The support frame 7 is in a U-shaped cross section, and the support frame 7 is fixedly arranged on the outer wall of the water outlet pipe 14. The electric cylinder 71 is fixedly arranged on the side wall of the support frame 7, the axis of the piston rod of the electric cylinder 71 is vertical, the piston rod of the electric cylinder 71 penetrates through the support frame 7 and is fixed with the sealing plug 6, and the electric cylinder 71 is electrically connected with the pressure detection sensor 5.
[0038] When the pressure detection sensor 5 detects that the water pressure is increased, the pressure detection sensor 5 starts the electric cylinder 71 through the controller, and then the electric cylinder 71 piston rod is retracted, so that the electric cylinder 71 piston rod moves the sealing plug 6 out of the through hole 21, thereby discharging the water in the water outlet pipe 14, and reducing the difficulty of the staff to open and close the sealing plug 6, thereby reducing the work difficulty of the staff.
[0039] In order to improve the detection accuracy of the pressure detection sensor 5, the lower end of the pressure detection sensor 5 is located on the side of the rotating plate 33 away from the rotating plate 33. The lower end of the pressure detection sensor 5 is located on the side of the rotating plate 33 away from the rotating plate 33, which improves the detection accuracy of the pressure detection sensor 5.
[0040] The use principle of the fire-fighting pressure-stabilizing water supply fire pump in the embodiment is as follows: when the pressure-stabilizing fire pump 1 is used, the staff starts the pressure-stabilizing fire pump 1, and then the water inlet pipe 12 of the pressure-stabilizing fire pump 1 draws water. Then, the water is discharged through the water outlet pipe 14 of the pressure-stabilizing fire pump 1. In this process, the staff can open and close the water outlet pipe 14 and the water inlet pipe 12 through the control valve 13 and the first electromagnetic valve 11 respectively. In this process, when the water outlet pipe 14 is blocked, the anti-backflow assembly 3 can prevent the water flow in the water outlet pipe 14 from flowing back.
[0041] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution under the idea of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the present application are also considered as the protection scope of the present application.
Claims
1. A fire-fighting pressure-keeping water supply fire pump comprising a pressure-keeping fire pump (1), characterized by: One end of the constant pressure fire pump (1) is provided with a first electromagnetic valve (11), and the first electromagnetic valve (11) is provided with a water inlet pipe (12) away from one end of the constant pressure fire pump (1), the other end of the constant pressure fire pump (1) is provided with a control valve (13), and the control valve (13) is provided with a water outlet pipe (14) away from one end of the constant pressure fire pump (1), and the water outlet pipe (14) is provided with an anti-backflow assembly (3) for preventing backflow of water.
2. The fire-fighting constant pressure water supply fire pump according to claim 1, characterized in that: Two rotation grooves (2) are formed in the inner wall of the water outlet pipe (14), the anti-backflow assembly (3) comprises two rotation rods (31) rotationally arranged in the rotation grooves (2), a fixed plate (32) fixedly arranged on the inner wall of the water outlet pipe (14), and a rotation plate (33) rotationally arranged on the inner wall of the water outlet pipe (14), the rotation plate (33) is fixedly connected with the rotation rod (31), and the side wall of the rotation plate (33) close to the water inlet pipe (12) abuts against the side wall of the fixed plate (32) away from the water inlet pipe (12).
3. The fire-fighting constant pressure water supply fire pump according to claim 2, characterized in that: The side wall of the rotation rod (31) away from the rotation plate (33) is fixedly provided with a torsional spring (4), and the other end of the torsional spring (4) is fixedly arranged on the inner wall of the rotation groove (2).
4. The fire-fighting constant pressure water supply fire pump according to claim 2, characterized in that: The outer wall of the water outlet pipe (14) is provided with a pressure detection sensor (5), the lower end of the pressure detection sensor (5) penetrates through the water outlet pipe (14) and extends into the water outlet pipe (14) to detect the water outlet pipe (14), and the pressure detection sensor (5) is electrically connected with the first electromagnetic valve (11).
5. A fire-fighting constant pressure water supply fire pump according to claim 4, characterized in that: A through hole (21) is formed in the inner wall of the water outlet pipe (14), and a sealing plug (6) is arranged in the through hole (21).
6. A fire-fighting constant pressure water supply fire pump according to claim 5, characterized in that: The outer wall of the water outlet pipe (14) is fixedly provided with a support frame (7) with a U-shaped cross section, the side wall of the support frame (7) is fixedly provided with an electric cylinder (71), the piston rod of the electric cylinder (71) penetrates through the support frame (7) and is fixedly connected with the sealing plug (6), and the electric cylinder (71) is electrically connected with the pressure detection sensor (5).
7. The fire-fighting constant pressure water supply fire pump according to claim 4, characterized in that: The lower end of the pressure detection sensor (5) is located on the side of the rotation plate (33) away from the rotation plate (33).