High-pressure water mist pump set energy recovery system

Abstract

A high-pressure water mist pump set energy recovery system is characterized in that a water outlet of a water tank is communicated with a high-pressure water pump through a one-way valve and a raw water inlet pipeline, the high-pressure water pump is communicated with a water outlet pipeline, an overflow port on the water outlet pipeline is communicated with an overflow pipeline, and the overflow pipeline is communicated with a high-pressure overflow water inlet of an energy recovery device; a high-pressure water outlet of the energy recovery device is communicated with the high-pressure water pump through a water outlet pipeline and a high-pressure raw water inlet pipeline, and a low-pressure water inlet of the energy recovery device is communicated with one end of a connecting pipe fitting located in the water tank through a low-pressure raw water inlet pipeline. And a low-pressure overflow water outlet of the energy recovery device is communicated with the other end of the connecting pipe fitting through a low-pressure overflow water outlet pipeline. The energy of high-pressure water of the overflow part is transmitted to the pump set for water inlet, so that the water inlet energy of the pump set is increased, the water inlet pressure of the pump is improved, the water outlet pressure of the pump set is further improved, the problem of energy waste of the overflow part is solved, the flow of the water outlet end of the pump set is stabilized, and good social and economic benefits are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high pressure water mist technical field, concretely is a kind of high pressure water mist pump group energy recovery system. BACKGROUND

[0002] The core of high pressure water mist system is pump group, and the main role is to increase pressure liquid water.Under the drive of motor or internal combustion engine, pump group can transmit mechanical energy or other external energy to liquid water, so that the energy of liquid water is increased, and the pressure is increased, and then the liquid drops with the diameter of micro-nano level are sprayed through high pressure water mist nozzle, so that fire can be quickly extinguished.

[0003] When the existing high pressure water mist fire extinguishing equipment works, due to various factors, the pump outlet flow and the nozzle outlet flow are always mismatched, when the pump outlet flow is greater than the nozzle outlet flow, part of the water will overflow to the water tank, and the part of the overflow water has high pressure energy, if not utilized, energy will be wasted, when the pump outlet flow (pump water intake) is less than the required flow of the nozzle outlet, the equipment cannot reach the rated working pressure, so that the fire extinguishing effect is not ideal, and even more serious consequences, therefore, the structure and design of pump group need to be further improved and innovated SUMMARY

[0004] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a kind of high pressure water mist pump group energy recovery system, can effectively solve the problem of energy waste or poor fire extinguishing effect caused by the mismatch of pump outlet flow and nozzle outlet flow.

[0005] To achieve the above purpose, the technical scheme solved by the utility model is a kind of high pressure water mist pump group energy recovery system, including water tank, high pressure water pump and check valve, the water outlet of water tank is connected with the water inlet of high pressure water pump through check valve and raw water inlet pipeline, the water outlet of high pressure water pump is connected with water outlet pipeline, the overflow port on water outlet pipeline is connected with the water inlet of overflow pipeline, the water outlet of overflow pipeline is connected with the high pressure overflow water inlet of energy recovery device, the high pressure water outlet of energy recovery device is connected with the water inlet of high pressure water pump through water outlet pipeline and high pressure raw water inlet pipeline, the low pressure water inlet of energy recovery device is connected with one end of connecting pipe in water tank through low pressure raw water inlet pipeline, and the low pressure overflow water outlet of energy recovery device is connected with the other end of connecting pipe through low pressure overflow water outlet pipeline.

[0006] The utility model is designed scientifically and reasonably, the energy of overflow part of high pressure water is transmitted to pump water inlet, so that the pump water energy is increased, the pump water pressure is improved, and then the pump outlet pressure is improved, the problem of energy waste of overflow part is solved, the pump outlet flow is stabilized, energy is saved, and good social and economic benefits are obtained. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 It is the connection structure diagram of the utility model.

[0008] Figure 2 It is the connection pipe fitting structure diagram of the utility model. Specific embodiments

[0009] The specific embodiments of the utility model are described in detail below in combination with the drawings and specific cases.

[0010] In combination with the drawings, a kind of high-pressure water mist pump group energy recovery system, including water tank, high-pressure water pump and check valve, the water outlet of water tank 12 is connected with the water inlet of high-pressure water pump 1 by check valve 3 and raw water inlet pipeline 4, the water outlet of high-pressure water pump 1 is connected with water outlet pipeline 2, overflow on water outlet pipeline 2 is connected with the water inlet of overflow pipeline 11, the water outlet of overflow pipeline 11 is connected with the high-pressure overflow water inlet of energy recovery device 13, the high-pressure water outlet of energy recovery device 13 is connected with the water inlet of high-pressure water pump 1 by water outlet pipeline 8 and high-pressure raw water inlet pipeline 5, the low-pressure water inlet of energy recovery device 13 is connected with one end of connecting pipe fitting 9 in water tank 12 by low-pressure raw water inlet pipeline 7, the low-pressure overflow water outlet of energy recovery device 13 is connected with the other end of connecting pipe fitting 9 by low-pressure overflow water outlet pipeline 6.

[0011] Further, in actual use, high-pressure raw water outlet pipeline 8 and high-pressure raw water inlet pipeline 5 are different two parts on a pipe, and the connecting part can be inside water tank 12 or outside water tank 12.

[0012] To ensure better implementation effect, raw water inlet pipeline 4 is equipped with tee joint, and high-pressure raw water inlet pipeline 5 is connected with the branch opening of tee joint.

[0013] The check valve 3 is a flip edition check valve.

[0014] The two ends of the connecting pipe fitting 9 are internally threaded, for connecting low-pressure raw water inlet pipeline 7 and low-pressure overflow water outlet pipeline 6, and the pipe body of connecting pipe fitting 9 is hollow, for the inlet and outlet of raw water in water tank 12.

[0015] The energy recovery device 13 is a pressure exchanger (marketed known product), and the type is turbine type energy recovery device, such as Turbo Charger series of American Pump Engineering (PEI) company or HPB series produced by American FEDCO company.

[0016] Further, the energy recovery device 13 has two channels inside, the channels have pressure pads inside, each end has water inlet and outlet, and the middle is a rotor, when the raw water in the water tank 12 enters the energy recovery device 13 through the low-pressure raw water inlet pipeline 7, the rotor rotates, when rotating to the high-pressure overflow water inlet side, the high-pressure overflow water pushes the low-pressure raw water out through the pressure pad, in this process, the pressure of the high-pressure overflow water is reduced, and the pressure of the low-pressure raw water is increased, and the pressure energy exchange is completed, when the rotor continues to rotate and rotates to the low-pressure overflow water outlet, the low-pressure overflow water is discharged, and the low-pressure raw water enters, thus, an energy exchange process is completed.

[0017] In the specific work, when the system starts to run, the raw water in the water tank 12 enters the high-pressure water pump 1 through the one-way valve 3 and the raw water inlet pipeline 4, most of the raw water after being pressurized by the high-pressure water pump 1 is sprayed outwards through the water outlet pipeline 2, and a small part of the high-pressure overflow water enters the energy recovery device 13 through the overflow pipeline 11, and the pressure exchange of the low-pressure raw water is completed in the energy recovery device 13, so that the low-pressure raw water becomes high-pressure raw water, and the high-pressure raw water enters the high-pressure water pump 1 through the water outlet pipeline 8 and the high-pressure raw water inlet pipeline 5, at this time, due to the increase of the water inlet pressure of the high-pressure water pump 1, the water outlet pressure of the high-pressure water pump 1 is also increased, and the working efficiency of the system is improved.

[0018] When the high-pressure raw water in the high-pressure raw water inlet pipeline 5 meets the water inlet demand of the high-pressure water pump 1, the one-way valve 3 is closed to prevent the high-pressure raw water from flowing back to the water tank 12, and when the high-pressure raw water in the high-pressure raw water inlet pipeline 5 cannot meet the water inlet demand of the high-pressure water pump 1, the one-way valve 3 is opened due to the self-suction capacity of the high-pressure water pump 1, at this time, the raw water pipeline 4 and the high-pressure raw water inlet pipeline 5 supply water to the high-pressure water pump 1 at the same time, so as to ensure that the water demand of the high-pressure water pump 1 is met.

[0019] The high-pressure overflow water of the overflow pipeline 11 enters the energy recovery device 13 to exchange pressure with the low-pressure raw water, the pressure energy of the high-pressure overflow water is transmitted to the low-pressure raw water from the low-pressure raw water inlet pipeline 7, so that the energy of the low-pressure raw water is increased and the pressure is increased, the low-pressure raw water becomes high-pressure raw water, the high-pressure overflow water becomes low-pressure overflow water, the raw water in the water tank 12 enters the low-pressure raw water inlet pipeline 7 through the connecting pipe 9, and the low-pressure overflow water is pressed out, the low-pressure overflow water enters the water tank 12 through the low-pressure overflow water outlet pipeline 6, and the connecting pipe 9 connects the low-pressure raw water inlet pipeline 7 and the low-pressure overflow water outlet pipeline 6 together in the water tank 12. In the whole operation process, the energy of the high-pressure overflow water is recovered, the water inlet pressure of the high-pressure water pump 1 is increased, the outlet pressure of the high-pressure water pump 1 is further increased, the efficiency of the system is improved, and the problem that the water quantity cannot meet the water inlet demand of the high-pressure water pump 1 is solved.

[0020] The utility model discloses scientific and reasonable design, compared with prior art, has the following advantages:

[0021] 1. The utility model has energy recovery function to high pressure water of overflow part, through the energy transmission of high pressure water of overflow part to pump group water inlet, make pump group water inlet energy become big, improve pump water pressure, and further improve pump group water pressure, solve the problem of energy waste of overflow part, improve pump group work efficiency simultaneously;

[0022] 2. The original high pressure water pump water inlet pipe is generally one, the utility model is equipped with two water inlet pipe roads and two water outlet pipe roads, two water inlet pipe roads are raw water inlet pipe road and high pressure raw water inlet pipe road, two water outlet pipe roads are high pressure working water pipe road and high pressure overflow water pipe road, when high pressure raw water inlet management flow pressure satisfies the requirement of pump, the check valve on raw water inlet pipe road closes, prevents high pressure raw water from entering water tank, causes energy loss, on the contrary check valve opens, guarantees water supply is sufficient, system stable and reliable operation, energy saving and environmental protection, has good social and economic benefits.

[0023] It should be pointed out that the above is only the preferred embodiment of the utility model, and does not limit the utility model in any form, and any skilled person in the art can make changes or modifications to equivalent embodiments with equivalent changes within the scope of the technical scheme of the utility model, which all fall within the protection scope of the utility model.

Claims

1. A high pressure water mist pump set energy recovery system comprising a water tank, a high pressure water pump and a check valve, characterized in that, The water outlet of the water tank (12) is connected with the water inlet of the high-pressure water pump (1) through a one-way valve (3) and a raw water inlet pipeline (4), the water outlet of the high-pressure water pump (1) is connected with a water outlet pipeline (2), the overflow port of the water outlet pipeline (2) is connected with the water inlet of an overflow pipeline (11), the water outlet of the overflow pipeline (11) is connected with the high-pressure overflow water inlet of an energy recovery device (13), the high-pressure water outlet of the energy recovery device (13) is connected with the water inlet of the high-pressure water pump (1) through a water outlet pipeline (8) and a high-pressure raw water inlet pipeline (5), the low-pressure water inlet of the energy recovery device (13) is connected with one end of a connecting pipe fitting (9) in the water tank (12) through a low-pressure raw water inlet pipeline (7), and the low-pressure overflow water outlet of the energy recovery device (13) is connected with the other end of the connecting pipe fitting (9) through a low-pressure overflow water outlet pipeline (6).

2. The high-pressure water mist pump pack energy recovery system of claim 1, wherein, The raw water inlet pipeline (4) is provided with a three-way pipe, and the high-pressure raw water inlet pipeline (5) is connected with a branch of the three-way pipe.

3. The high-pressure water mist pump pack energy recovery system of claim 1, wherein, The one-way valve (3) is a flip type one-way valve.

4. The high-pressure water mist pump pack energy recovery system of claim 1, wherein, The connecting pipe fitting (9) is internally threaded at both ends, and is used for connecting the low-pressure raw water inlet pipeline (7) and the low-pressure overflow water outlet pipeline (6); the pipe body of the connecting pipe fitting (9) is hollow, and is used for the inlet and outlet of raw water in the water tank (12).

5. The high-pressure water mist pump pack energy recovery system of claim 1, wherein, The energy recovery device (13) is a pressure exchanger.

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