Fire pump system

Abstract

The utility model discloses a fire pump system which comprises a pressure stabilizing pump and further comprises a pressure stabilizing pipeline, a pressurizing pipeline and a collecting pipe. The pressure stabilizing pipeline and the pressurizing pipeline are arranged in parallel; the outlet end of the pressure stabilizing pipeline and the outlet end of the pressurizing pipeline are respectively connected with two inlet ends of the collecting pipe; the pressure stabilizing pump is mounted on the pressure stabilizing pipeline; and a booster pump is mounted on the booster pipeline. The booster pump and the pressure stabilizing pump are arranged in parallel, the pressure stabilizing pump is started and closed during low-pressure operation, the normal pressure of the pipeline is maintained, the pressure stabilizing pump is closed and the booster pump is started when spraying is needed, the pressure of the pipeline is increased, and it is ensured that the pressure of liquid can still meet the requirement after long-distance conveying. When the stabilized pressure pump is used, the booster pump can replace the stabilized pressure pump to maintain the pipeline pressure, one-standby-one-use of the stabilized pressure pump is achieved, the probability that the system cannot work due to water pump faults is reduced, and the reliability of the system is improved.

Description

Technical Field

[0001] The utility model relates to a pumping system, in particular to a fire pump system. Background Art

[0002] The fire pumping system needs to transport the liquid from the pump room to the sprinkler. The traditional fire pump room has only one pumping device. When transporting over long distances, the pressure will be reduced due to pipe damage, and the rated pressure cannot be reached when it reaches the sprinkler.

[0003] To solve the above problems, the prior art proposes a solution of adding water pumps, such as the Chinese utility model patent with the authorization announcement number CN205198775U, which sets a series of fire hydrant pressure-stabilizing pumps and sprinkler pumps on the pumping pipeline to ensure that the pressure at the sprinkler reaches the required level. However, if one water pump in this device is damaged, the entire pipeline will stop running, and the reliability of the system will be greatly reduced. Utility Model Content

[0004] The utility model provides a fire pump system, the purpose of which is to solve the problem of reduced reliability when the pressure is increased by a booster water pump.

[0005] The technical solution of this utility model is as follows:

[0006] A fire pump system includes a pressure stabilizing pump, a pressure stabilizing pipeline, a pressure boosting pipeline and a manifold;

[0007] The pressure stabilizing pipeline and the pressure boosting pipeline are arranged in parallel, and the outlet end of the pressure stabilizing pipeline and the outlet end of the pressure boosting pipeline are respectively connected to the two inlet ends of the collecting pipe;

[0008] The pressure-stabilizing pump is installed on the pressure-stabilizing pipeline;

[0009] A boost pump is installed on the boost pipeline.

[0010] As a further improvement of the fire pump system: the booster pump is an adjustable pressure pump.

[0011] As a further improvement of the fire pump system: a first check valve located between the pressure stabilizing pump and the outlet end of the pressure stabilizing pipeline is also installed on the pressure stabilizing pipeline; a second check valve located between the pressure stabilizing pump and the outlet end of the pressure stabilizing pipeline is also installed on the boosting pipeline.

[0012] As a further improvement of the fire pump system: a first pressure gauge located at the outlet end of the pressure stabilizing pump is also installed on the pressure stabilizing pipeline;

[0013] The boosting pipeline is also provided with a second pressure gauge located at the outlet end of the boosting pump.

[0014] As a further improvement of the fire pump system: the pressure stabilizing pipeline is also provided with a first pressure stabilizing tank located between the first check valve and the outlet end of the pressure stabilizing pipeline; a first pressure stabilizing valve is provided at the connection between the first pressure stabilizing tank and the pressure stabilizing pipeline;

[0015] The boosting pipeline is also provided with a second pressure stabilizing tank located between the second check valve and the outlet end of the boosting pipeline; a second pressure stabilizing valve is provided at the connection point between the second pressure stabilizing tank and the boosting pipeline.

[0016] As a further improvement of the fire pump system: a first filter is installed on the pressure stabilizing pipeline between the inlet end of the pressure stabilizing pipeline and the pressure stabilizing pump; a second filter is installed on the boosting pipeline between the inlet end of the boosting pipeline and the boosting pump.

[0017] As a further improvement of the fire pump system: a fifth pressure gauge and a sixth pressure gauge are also installed on the pressure stabilizing pipeline, the fifth pressure gauge is located between the first filter and the inlet end of the pressure stabilizing pipeline, and the sixth pressure gauge is located between the first filter and the pressure stabilizing pump.

[0018] As a further improvement of the fire pump system: the inlet end of the pressure stabilizing pipeline is provided with a first inlet gate valve, and the outlet end is provided with a first outlet gate valve;

[0019] The inlet end of the boosting pipeline is provided with a second inlet gate valve, and the outlet end is provided with a second outlet gate valve.

[0020] As a further improvement of the fire pump system: a flow meter is provided at the outlet end of the collecting pipe.

[0021] As a further improvement of the fire pump system: a third pressure gauge is installed at the inlet end of the collecting pipe connected to the pressure stabilizing pipeline, and a fourth pressure gauge is installed at the inlet end of the collecting pipe connected to the boosting pipeline.

[0022] Compared with the prior art, the utility model has the following positive effects:

[0023] 1. The utility model sets the booster pump and the pressure-stabilizing pump in parallel. When the pressure is low, the pressure-stabilizing pump is turned on and the booster pump is turned off to maintain the normal pressure of the pipeline. When spraying is required, the pressure-stabilizing pump is turned off and the booster pump is turned on to increase the pipeline pressure to ensure that the pressure of the liquid still meets the requirements after long-distance transportation. If the pressure-stabilizing pump fails, the booster pump can replace the pressure-stabilizing pump to maintain the pipeline pressure, realizing the backup and use of the pressure-stabilizing pump, reducing the probability of the system failing to work due to water pump failure, and improving the reliability of the system.

[0024] 2. The booster pump is an adjustable pressure pump. When the pressure-stabilizing pump fails, the working pressure of the booster pump can be reduced by frequency modulation and other methods to keep the pipeline pressure within a reasonable range. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the PID diagram of the utility model;

[0026] Figure 2 It is a three-dimensional diagram of the utility model.

[0027] Parts names in the picture:

[0028] 1. Manifold; 2. Flow meter; 3. Fourth pressure gauge; 4. Second outlet gate valve; 5. Second pressure-stabilizing tank; 6. Second pressure-stabilizing valve; 7. Second check valve; 8. Second pressure gauge; 9. Booster pump; 10. Second filter; 11. Second inlet gate valve; 12. First inlet gate valve; 13. Fifth pressure gauge; 14. First filter; 15. Sixth pressure gauge; 16. Pressure-stabilizing pump; 17. First pressure gauge; 18. First check valve; 19. First pressure-stabilizing valve; 20. First pressure-stabilizing tank; 21. First outlet gate valve; 22. Third pressure gauge; 23. Control box; 24. Control cabinet. DETAILED DESCRIPTION

[0029] The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments.

[0030] like Figure 1 and 2 A fire pump system comprises a frame, on which a pressure stabilizing pipeline, a pressure boosting pipeline and a collecting pipe 1 are installed.

[0031] The pressure stabilizing pipeline and the pressure boosting pipeline are arranged in parallel, and the outlet end of the pressure stabilizing pipeline and the outlet end of the pressure boosting pipeline are respectively connected to the two inlet ends of the collecting pipe 1.

[0032] The pressure stabilizing pipeline is provided with a first inlet gate valve 12, a first filter 14, a pressure stabilizing pump 16, a first check valve 18, a first pressure stabilizing tank 20 and a first outlet gate valve 21 in sequence from the inlet end to the outlet end. A first pressure stabilizing valve 19 is provided at the connection between the first pressure stabilizing tank 20 and the pressure stabilizing pipeline.

[0033] The boosting pipeline is provided with a second inlet gate valve 11, a second filter 10, a boosting pump 9, a second check valve 7, a second pressure stabilizing tank 5 and a second outlet gate valve 4 in sequence from the inlet end to the outlet end. A second pressure stabilizing valve 6 is provided at the connection between the second pressure stabilizing tank 5 and the boosting pipeline.

[0034] The pressure-stabilizing tank is used to remove gas from the pipeline, reduce bubble vibration in the pipeline, maintain the stability of the system pressure, and protect the safety of the system. The pressure-stabilizing valve under the pressure-stabilizing tank works according to the set pressure value. When the pressure is greater than the set pressure value, the pressure-stabilizing valve opens, so that the pipeline is connected to the pressure-stabilizing tank, and the excess gas and liquid are removed, the pressure is reduced, and the internal pressure of the system is maintained stable to prevent the pipeline system and equipment from being overloaded and damaged. At the same time, the pressure-stabilizing tank can also be used as a gas storage container to provide a stable gas flow when the system is started or paused.

[0035] The pressure-stabilizing pump 16 is a low-pressure pump with a working pressure of 0.1-1.6 MPa. The booster pump 9 is an adjustable high-pressure pump with a maximum pressure of 10 MPa.

[0036] The fire pump system also includes a detection device: a first pressure gauge 17 for detecting the outlet pressure of the pressure-stabilizing pump 16 is installed at the outlet end, and a second pressure gauge 8 for detecting the outlet pressure of the booster pump 9 is installed at the outlet end. A third pressure gauge 22 is installed at the inlet end of the manifold 1 connected to the pressure-stabilizing pipeline, and a fourth pressure gauge 3 is installed at the inlet end of the manifold 1 connected to the booster pipeline. A flow meter 2 is provided at the outlet end of the manifold 1.

[0037] Furthermore, a fifth pressure gauge 13 and a sixth pressure gauge 15 are installed on the pressure stabilizing pipeline. The fifth pressure gauge 13 is located between the first filter 14 and the inlet end of the pressure stabilizing pipeline, and the sixth pressure gauge 15 is located between the first filter 14 and the pressure stabilizing pump 16 .

[0038] The frame is also provided with a control box 23, and the buttons on the control box 23 are used to control the operation of the pressure-stabilizing pump 16 and the booster pump 9. At the same time, the frame is also provided with a control cabinet 24, which is electrically connected to each gate valve, the pressure-stabilizing pump 16, the booster pump 9 and each instrument, and its internal logic control program controls the operation of each pump and gate valve according to the pressure and flow state.

[0039] The working mode of the fire pump system is:

[0040] During normal operation, the first inlet gate valve 12 and the first outlet gate valve 21 are opened, the pressure-stabilizing pump 16 is started, the second inlet gate valve 11 and the second outlet gate valve 4 are closed at the same time, and the booster pump 9 is closed. At this time, the pressure-stabilizing pipeline works. The pressure-stabilizing pump 16 ensures that the pipeline has a certain low pressure. The pipeline pressure can be read through the first pressure gauge 17 or the third pressure gauge 22. When the pipeline pressure is greater than the set value, the pressure-stabilizing pump 16 is closed, and when the pressure is less than the set value, the pressure-stabilizing pump 16 is opened. When the system pipeline pressure is low and the pressure-stabilizing pump 16 cannot be opened due to an abnormality, the control cabinet 24 will switch the logic (can also be manually controlled), close the pressure-stabilizing pump 16, the first inlet gate valve 12 and the first outlet gate valve 21, open the booster pump 9, the second inlet gate valve 11 and the second outlet gate valve 4, and adjust the working pressure of the booster pump 9 to be close to that of the pressure-stabilizing pump 16 through frequency modulation and pressure regulation. At this time, the booster pump 9 is used as a backup pump for the pressure-stabilizing pump 16 to maintain the pipeline pressure.

[0041] When spraying is required, open the second inlet gate valve 11 and the second outlet gate valve 4, start the booster pump 9, and at the same time close the first inlet gate valve 12 and the first outlet gate valve 21, and turn off the pressure-stabilizing pump 16. At this time, the booster pipeline works to achieve spraying of high-pressure fine water mist.

[0042] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. The scope of the present invention is defined by the claims rather than the above description.

Claims

1. A fire pump system, comprising a pressure-stabilizing pump (16), characterized in that: It also includes a pressure stabilizing pipeline, a pressure boosting pipeline and a manifold (1); The pressure stabilizing pipeline and the pressure boosting pipeline are arranged in parallel, and the outlet end of the pressure stabilizing pipeline and the outlet end of the pressure boosting pipeline are respectively connected to the two inlet ends of the collecting pipe (1); The pressure-stabilizing pump (16) is installed on the pressure-stabilizing pipeline; A boost pump (9) is installed on the boost pipeline.

2. The fire pump system according to claim 1, characterized in that: The booster pump (9) is an adjustable pressure pump.

3. The fire pump system according to claim 1, characterized in that: The pressure stabilizing pipeline is also provided with a first check valve (18) located between the pressure stabilizing pump (16) and the outlet end of the pressure stabilizing pipeline; the boosting pipeline is also provided with a second check valve (7) located between the boosting pump (9) and the outlet end of the boosting pipeline.

4. The fire pump system according to claim 3, characterized in that: The pressure-stabilizing pipeline is also provided with a first pressure gauge (17) located at the outlet end of the pressure-stabilizing pump (16); The boosting pipeline is also provided with a second pressure gauge (8) located at the outlet end of the boosting pump (9).

5. The fire pump system according to claim 3, characterized in that: The pressure stabilizing pipeline is also provided with a first pressure stabilizing tank (20) located between the first check valve (18) and the outlet end of the pressure stabilizing pipeline; a first pressure stabilizing valve (19) is provided at the connection point between the first pressure stabilizing tank (20) and the pressure stabilizing pipeline; The boosting pipeline is also provided with a second pressure stabilizing tank (5) located between the second check valve (7) and the outlet end of the boosting pipeline; a second pressure stabilizing valve (6) is provided at the point where the second pressure stabilizing tank (5) is connected to the boosting pipeline.

6. The fire pump system according to claim 1, characterized in that: The pressure stabilizing pipeline is also provided with a first filter (14) located between the inlet end of the pressure stabilizing pipeline and the pressure stabilizing pump (16); the boosting pipeline is also provided with a second filter (10) located between the inlet end of the boosting pipeline and the boosting pump (9).

7. The fire pump system according to claim 6, characterized in that: A fifth pressure gauge (13) and a sixth pressure gauge (15) are also installed on the pressure stabilizing pipeline. The fifth pressure gauge (13) is located between the first filter (14) and the inlet end of the pressure stabilizing pipeline, and the sixth pressure gauge (15) is located between the first filter (14) and the pressure stabilizing pump (16).

8. The fire pump system according to claim 1, characterized in that: The inlet end of the pressure-stabilizing pipeline is provided with a first inlet gate valve (12), and the outlet end is provided with a first outlet gate valve (21); The inlet end of the boosting pipeline is provided with a second inlet gate valve (11), and the outlet end is provided with a second outlet gate valve (4).

9. The fire pump system according to claim 1, characterized in that: A flow meter (2) is provided at the outlet end of the collecting pipe (1).

10. The fire pump system according to claim 1, characterized in that: A third pressure gauge (22) is installed at the inlet end of the collecting pipe (1) connected to the pressure stabilizing pipeline, and a fourth pressure gauge (3) is installed at the inlet end of the collecting pipe (1) connected to the pressure boosting pipeline.

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