Secondary water supply system and equipment cabinet

Abstract

The utility model provides a secondary water supply system and an equipment cabinet, the secondary water supply system comprises a steady flow tank, a water outlet gathering pipe, a plurality of water pumps and a plurality of pipe groups in one-to-one correspondence with drain holes, and the steady flow tank is provided with a water inlet and a plurality of drain holes; a water outlet and a plurality of confluence holes in one-to-one correspondence with the drainage holes are formed in the water outlet collecting pipe; the pipe group comprises a first pipeline and a second pipeline, the water inlet end of the water pump is communicated with the corresponding water outlet through the first pipeline, and the water outlet end of the water pump is communicated with the corresponding confluence hole through the second pipeline. According to the scheme, the water inlet is directly formed in the steady flow tank, so that the steady flow tank can be used as a water inlet pipe at the same time; and the water outlet collecting pipe is directly provided with the water outlet, so that the water outlet collecting pipe can be simultaneously used as a water outlet pipe, the system structure is simplified, and the size is reduced.

Description

Technical Field

[0001] This utility model relates to the field of secondary water supply equipment technology, and in particular to a secondary water supply system and equipment cabinet. Background Technology

[0002] Secondary water supply equipment refers to a type of equipment developed and tested by water supply operators to solve residential water problems. It achieves secondary water supply based on the national municipal water supply network or residential self-use water supply equipment to meet the water needs of a wide range of users.

[0003] Patent CN114960831A discloses a silent, energy-saving, negative pressure-free, fully variable frequency water supply device, including an outlet pipe, a transfer pipe, a base, and a flow stabilizer tank and bracket I installed on the base. The flow stabilizer tank is equipped with a vacuum suppressor, a flow stabilizer tank drain pipe, and a flow stabilizer tank inlet pipe. The flow stabilizer tank drain pipe is connected to the transfer pipe, and the transfer pipe is connected to the outlet pipe through multiple water pipes. Each water pipe connected to the outlet pipe is equipped with a silent in-pipe pump, and a controller is connected to the silent in-pipe pump. The controller is installed on bracket I.

[0004] The aforementioned patented solution requires the installation of a stabilizing tank inlet pipe and a stabilizing tank outlet pipe on the stabilizing tank. After connecting the stabilizing tank outlet pipe to the transfer water pipe, the transfer water pipe also needs to be connected to the outlet pipe through multiple water pipes, which results in a complex equipment structure and a large size. Utility Model Content

[0005] Based on the problems existing in the prior art, this utility model aims to solve the technical problem that the existing water supply equipment needs to be equipped with a stabilizing tank inlet pipe and a stabilizing tank outlet pipe on the stabilizing tank, and after connecting the stabilizing tank outlet pipe to the transfer water pipe, the transfer water pipe also needs to be connected to the outlet pipe through multiple water pipes, which leads to the complex structure and large size of the equipment.

[0006] This utility model provides a secondary water supply system, which includes:

[0007] A flow stabilizer tank, which has an inlet and several drain holes.

[0008] The water outlet collection pipe has an outlet and several confluence holes that correspond one-to-one with the drainage holes;

[0009] Several water pumps, each corresponding to one of the drainage holes;

[0010] A plurality of pipe groups corresponding one-to-one with the drain holes, the pipe groups including a first pipe and a second pipe, the water inlet end of the water pump is connected to the corresponding drain outlet through the first pipe, and the water outlet end is connected to the corresponding manifold through the second pipe.

[0011] According to one embodiment of the present invention, the flow stabilizing tank and the water outlet collection pipe are arranged side by side vertically, and a plurality of water pumps are located on the same side of the flow stabilizing tank and the water outlet collection pipe.

[0012] According to one embodiment of the present invention, the secondary water supply system further includes a plurality of first valves corresponding one-to-one with the water pump. The inlet end of the first valve is connected to the outlet end of the corresponding water pump, and the outlet end of the first valve is connected to the corresponding manifold through the second pipeline.

[0013] According to one embodiment of the present invention, the secondary water supply system further includes a plurality of check valves corresponding to the water pumps, wherein the check valves are disposed between the corresponding water pumps and the first valves.

[0014] According to one embodiment of the present invention, the secondary water supply system further includes a vacuum suppressor disposed on the top of the flow stabilizing tank.

[0015] According to one embodiment of the present invention, the vacuum suppressor includes:

[0016] The housing is fixedly mounted on the top of the flow stabilizer tank;

[0017] The float valve is fixedly installed inside the housing;

[0018] An exhaust pipe is fixedly installed inside the housing, and the bottom end of the exhaust pipe passes through the housing and the flow stabilizer in sequence and extends to the bottom of the flow stabilizer.

[0019] According to one embodiment of the present invention, the vacuum suppressor further includes:

[0020] A liquid level sensor is fixedly mounted on the housing, with the sensing end of the liquid level sensor located inside the housing and at a height not lower than that of the float valve.

[0021] A normally open solenoid valve is fixedly installed on the exhaust pipe.

[0022] According to one embodiment of the present invention, the secondary water supply system further includes a pressure tank connected to the outlet water collection pipe.

[0023] This utility model also provides a secondary water supply equipment cabinet, which includes:

[0024] The aforementioned secondary water supply system;

[0025] Electrical components for electrical control or display of the secondary water supply system;

[0026] The cabinet has doors, and the secondary water supply system and the electrical components are detachably and fixedly installed inside the cabinet.

[0027] According to one embodiment of the present invention, the secondary water supply equipment cabinet further includes a partition fixedly disposed within the cabinet body. The partition is fixedly disposed within the cabinet body and divides the inner cavity of the cabinet body into a water supply installation chamber and an electrical installation chamber. The secondary water supply system and the electrical components are respectively installed in the water supply installation chamber and the electrical installation chamber.

[0028] The beneficial effects of this utility model are:

[0029] The present invention provides a secondary water supply system that simplifies the system structure and reduces its volume by directly opening an inlet on the flow stabilizer tank, allowing the flow stabilizer tank to be used as an inlet pipe at the same time; and by directly opening an outlet on the water collection pipe, allowing the water collection pipe to be used as an outlet pipe at the same time. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a first-view structural schematic diagram of a secondary water supply system provided in an embodiment of this utility model;

[0032] Figure 2 This is a second-view structural schematic diagram of a secondary water supply system provided in an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram illustrating the working principle of the vacuum suppressor in this embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of a secondary water supply equipment cabinet provided in an embodiment of this utility model;

[0035] Figure 5 This is a schematic diagram of the state of a secondary water supply equipment cabinet after the cabinet door is closed, according to an embodiment of this utility model;

[0036] Attached reference numerals: 1-Stabilizing tank; 11-Inlet; 12-First pressure gauge; 13-Flow meter; 14-Second pressure gauge; 2-Outlet pipe; 21-Outlet; 3-Water pump; 4-Pipe assembly; 41-First pipeline; 42-Second pipeline; 5-First valve; 6-Check valve; 7-Vacuum suppressor; 71-Housing shell; 72-Float valve; 73-Exhaust pipe; 74-Level sensor; 75-Normally open solenoid valve; 8-Pressure tank; 9-Second valve; 100-Electrical components; 200-Cabinet; 201-Water supply installation room; 202-Electrical installation room; 300-Partition; 400-Camera. Detailed Implementation

[0037] The following description of the embodiments is with reference to the accompanying illustrations, which illustrate specific embodiments in which the present invention can be implemented.

[0038] This utility model provides a secondary water supply system, the structure of which is as follows: Figure 1 and Figure 2 As shown, the system includes a flow stabilizer tank 1, a water outlet manifold 2, several water pumps 3, and several pipe assemblies 4 corresponding to the drain holes. The flow stabilizer tank 1 has an inlet 11 and several drain holes, and is made of stainless steel. To control the water flow and quality, valves and filters can be installed at the inlet 11. The water outlet manifold 2 has an outlet 21 and several manifolds corresponding to the drain holes. Each water pump 3 corresponds to a drain hole. The pipe assembly 4 includes a first pipe 41 and a second pipe 42. The inlet of each water pump 3 is connected to the corresponding drain hole via the first pipe 41, and the outlet is connected to the corresponding manifold via the second pipe 42, for pressurizing and delivering water to the user.

[0039] Compared with the prior art, the secondary water supply system provided by this utility model simplifies the system structure and reduces the volume by directly opening an inlet 11 on the flow stabilizing tank 1, so that the flow stabilizing tank 1 can be used as an inlet pipe at the same time; and by directly opening an outlet 21 on the outlet concentrator pipe 2, so that the outlet concentrator pipe 2 can be used as an outlet pipe at the same time.

[0040] Please continue to refer to Figure 2 Specifically, the flow stabilizing tank 1 and the water outlet collection pipe 2 are arranged side by side in a vertical direction, and multiple water pumps 3 are located on the same side of the flow stabilizing tank 1 and the water outlet collection pipe 2, so that the flow stabilizing tank 1, the water outlet collection pipe 2 and the water pumps 3 are reasonably distributed, thereby reducing the space occupation.

[0041] It should be noted that the vertical arrangement of the flow stabilizer tank 1 and the outlet water collection pipe 2 does not strictly require them to be arranged vertically from top to bottom or from bottom to top. A certain degree of misalignment is also allowed, and the specific degree of misalignment depends on the actual situation.

[0042] Preferably, the water pump 3 is a vertical water pump, which can further reduce the space occupied; more preferably, the water pump 3 is a vertical floodproof silent water pump, which has the advantages of high efficiency, energy saving and stable operation, and can meet different water supply needs.

[0043] Furthermore, the secondary water supply system also includes a first pressure gauge 12 and a flow meter 13 installed on the outlet manifold 2 for monitoring the pressure and flow rate of the outlet manifold 2; the secondary water supply system also includes a second pressure gauge 14 installed on the flow stabilizing tank 1 for monitoring the pressure inside the flow stabilizing tank 1.

[0044] According to one embodiment of the present invention, the secondary water supply system further includes a plurality of first valves 5 corresponding one-to-one with the water pump 3. The inlet end of the first valve 5 is connected to the outlet end of the corresponding water pump 3, and the outlet end of the first valve 5 is connected to the corresponding manifold through the second pipeline 42.

[0045] Furthermore, the secondary water supply system also includes several check valves 6 corresponding to the water pumps 3 one by one. The check valves 6 are disposed between the corresponding water pumps 3 and the first valves 5 to allow water to flow unidirectionally from the water pumps 3 to the first valves 5.

[0046] Furthermore, the secondary water supply system also includes a second valve 9 installed on the first pipeline 41.

[0047] Preferably, both the first valve 5 and the second valve 9 are flanged butterfly valves. It should be noted that selecting flanged butterfly valves for the first valve 5 and the second valve 9 is only a preferred embodiment of this invention. In other embodiments, other types of valves, such as proportional valves, can be selected according to actual needs.

[0048] According to one embodiment of the present invention, the secondary water supply system further includes a vacuum suppressor 7 disposed on the top of the flow stabilizing tank 1 to suppress the generation of negative pressure within the secondary water supply system. Figure 3The diagram shows the working principle of the vacuum suppressor 7. Specifically, the vacuum suppressor 7 includes a housing 71, a float valve 72, and an exhaust pipe 73. The housing 71 is fixedly installed on the top of the flow stabilizer 1. The float valve 72 and the exhaust pipe 73 are both fixedly installed inside the housing 71. The top end of the float valve 72 communicates with the inner cavity of the housing 71, and the bottom end communicates with the flow stabilizer 1. The bottom end of the exhaust pipe 73 passes through the housing 71 and the flow stabilizer 1 in sequence and extends to the bottom of the flow stabilizer 1.

[0049] It is easy to understand that when external water begins to flow into the flow stabilizing tank 1 from the inlet 11, the air in the flow stabilizing tank 1 is discharged through the float valve 72 and the exhaust pipe 73, thereby reducing the occurrence of cavitation. As the water level in the flow stabilizing tank 1 gradually rises, the float in the float valve 72 is gradually raised by buoyancy until the float valve 72 is completely closed.

[0050] Furthermore, to prevent the float valve 72 from malfunctioning and failing to close properly, the vacuum suppressor 7 also includes a liquid level sensor 74 fixedly mounted on the housing 71 and a normally open solenoid valve 75 fixedly mounted on the exhaust pipe 73. The sensing end of the liquid level sensor 74 is located inside the housing 71 and is not lower than the height of the float valve 72. The normally open solenoid valve can prevent negative pressure from appearing in the flow stabilizing tank 1, thereby stabilizing the water supply pressure.

[0051] Understandably, when the float valve 72 malfunctions and fails to disconnect from the interior of the housing 71, the normally open solenoid valve 75 closes when the level sensor 74 senses the liquid level inside the housing 71, in order to prevent water in the flow stabilizing tank 1 from overflowing through the vent pipe 73 and causing waste of water resources.

[0052] According to one embodiment of this utility model, the secondary water supply system further includes a pressure tank 8 connected to the outlet manifold 2. The pressure tank 8, through the function of its internal water supply capsule, replenishes water during peak water usage periods and balances the water pressure at the outlet of the water supply system. During off-peak water usage periods, the water supply capsule in the pressure tank 8 directly delivers pressurized domestic water to the user. Since the application of the pressure tank 8 in the water supply system is prior art, the specific working principle of the pressure tank 8 will not be elaborated upon.

[0053] This utility model also provides a secondary water supply equipment cabinet, the structure of which is as follows: Figure 4 and Figure 5As shown, the system includes the aforementioned secondary water supply system, electrical components 100, and a cabinet 200 with a door. The electrical components 100 are used for electrical control or display of the secondary water supply system. Specifically, the electrical components 100 can be a display screen, preferably a touch screen. Both the secondary water supply system and the electrical components 100 are detachably and fixedly installed inside the cabinet 200. Preferably, to improve the sound insulation and heat preservation performance of the secondary water supply equipment cabinet, the inner wall of the cabinet 200 is provided with a sound insulation and heat preservation board (not shown in the figure).

[0054] Furthermore, the secondary water supply equipment cabinet also includes a partition 300 fixedly installed inside the cabinet body 200. The partition 300 is fixedly installed inside the cabinet body 200 and divides the inner cavity of the cabinet body 200 into a water supply installation chamber 201 and an electrical installation chamber 202. The secondary water supply system and the electrical components 100 are respectively installed in the water supply installation chamber 201 and the electrical installation chamber 202.

[0055] It is easy to understand that by installing the secondary water supply system and the electrical components 100 in the water supply installation room 201 and the electrical installation room 202 respectively, water and electricity are separated, and the safety performance of the secondary water supply equipment cabinet is improved.

[0056] Preferably, the electrical installation room 202 is further divided into a separate air conditioning room (not shown in the figure), which is equipped with an air conditioner for cooling protection.

[0057] Furthermore, the secondary water supply equipment cabinet also includes a camera 400 fixedly installed on the outer wall of the cabinet 200, and the cabinet 200 is equipped with supporting video transmission and storage devices, which can facilitate remote monitoring.

[0058] To facilitate understanding of this utility model, the following is combined with... Figures 1-5 The working principle of this solution will be explained in detail:

[0059] During operation, external water flows into the flow stabilizing tank 1 through the inlet 11. Air inside the flow stabilizing tank 1 is discharged through the float valve 72 and the vent pipe 73, thereby reducing cavitation. As the water level in the flow stabilizing tank 1 gradually rises, the float in the float valve 72 gradually rises due to buoyancy until the float valve 72 is completely closed. The water in the flow stabilizing tank 1 flows through several first pipes 41 to the corresponding water pumps 3. The water pumps 3 pressurize the water and then deliver it through the corresponding second pipes 42 to the outlet collection pipe 2 for collection, and finally it flows out through the outlet 21 to supply the user.

[0060] During this process, the first pressure gauge 12 and the flow meter 13 monitor the pressure and flow rate in the water outlet manifold 2 in real time, while the second pressure gauge 14 monitors the pressure in the flow stabilizing tank 1 in real time. The pressure tank 8, through the function of its internal water supply capsule, replenishes water during peak water usage periods and balances the water pressure at the outlet 21; during off-peak water usage periods, the water supply capsule in the pressure tank 8 directly delivers pressurized domestic water to the user.

[0061] When the float valve 72 malfunctions due to prolonged use and cannot disconnect from the interior of the housing 71, the normally open solenoid valve 75 closes when the liquid level sensor 74 senses the liquid level inside the housing 71, in order to prevent water in the flow stabilizing tank 1 from overflowing through the vent pipe 73 and causing waste of water resources.

[0062] In summary, the secondary water supply system and equipment cabinet provided by this utility model simplifies the structure of the secondary water supply system by using the flow stabilizing tank 1 as the inlet pipe and the outlet manifold 2 as the outlet pipe, while also rationally arranging the positions of various parts of the secondary water supply system and reducing its volume. In the secondary water supply equipment cabinet, by installing the secondary water supply system and the electrical components 100 in the water supply installation chamber 201 and the electrical installation chamber 202 respectively, water and electricity are separated, improving the safety performance of the secondary water supply equipment cabinet.

[0063] It should be noted that although the present invention has been disclosed above with specific embodiments, the above embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. A secondary water supply system, characterized by, The utility model relates to a secondary water supply system, which comprises a steady flow tank (1) having a water inlet (11) and a plurality of water discharge holes; a water outlet collecting pipe (2) having a water outlet (21) and a plurality of collecting holes corresponding to the water discharge holes; a plurality of water pumps (3) corresponding to the water discharge holes; a plurality of pipe groups (4) corresponding to the water discharge holes, each pipe group (4) comprising a first pipe (41) and a second pipe (42), the water inlet of the water pump (3) being connected to the corresponding water discharge hole through the first pipe (41), and the water outlet being connected to the corresponding collecting hole through the second pipe (42). The steady flow tank (1) and the water outlet collecting pipe (2) are vertically distributed side by side, and a plurality of water pumps (3) are located on the same side of the steady flow tank (1) and the water outlet collecting pipe (2). The utility model further comprises a plurality of first valves (5) corresponding to the water pumps (3), the water inlet of the first valve (5) being connected to the water outlet of the corresponding water pump (3), and the water outlet being connected to the corresponding collecting hole through the second pipe (42). The utility model further comprises a plurality of check valves (6) corresponding to the water pumps (3), which are arranged between the corresponding water pump (3) and the first valve (5). The utility model further comprises a vacuum inhibitor (7) arranged on the top of the steady flow tank (1).

2. The secondary water supply system according to claim 1, wherein The vacuum inhibitor (7) comprises a housing (71) fixedly arranged on the top of the steady flow tank (1), a floating ball valve (72) fixedly arranged in the housing (71), and an exhaust pipe (73) fixedly arranged in the housing (71), the bottom end of the exhaust pipe (73) extending to the bottom of the steady flow tank (1) after sequentially passing through the housing (71) and the steady flow tank (1).

3. The secondary water supply system according to claim 1, wherein The vacuum inhibitor (7) further comprises a liquid level sensor (74) fixedly arranged on the housing (71), the sensing end of the liquid level sensor (74) being located inside the housing (71) and being not lower than the height at which the floating ball valve (72) is located, and a normally open electromagnetic valve (75) fixedly mounted on the exhaust pipe (73).

4. The secondary water supply system according to claim 3, wherein The utility model further comprises a pressure tank (8) connected to the water outlet collecting pipe (2).

5. The secondary water supply system according to claim 1, wherein The utility model relates to a secondary water supply system, which comprises a steady flow tank (1) having a water inlet (11) and a plurality of water discharge holes; a water outlet collecting pipe (2) having a water outlet (21) and a plurality of collecting holes corresponding to the water discharge holes; a plurality of water pumps (3) corresponding to the water discharge holes; a plurality of pipe groups (4) corresponding to the water discharge holes, each pipe group (4) comprising a first pipe (41) and a second pipe (42), the water inlet of the water pump (3) being connected to the corresponding water discharge hole through the first pipe (41), and the water outlet being connected to the corresponding collecting hole through the second pipe (42).

6. The secondary water supply system according to claim 5, wherein The steady flow tank (1) and the water outlet collecting pipe (2) are vertically distributed side by side, and a plurality of water pumps (3) are located on the same side of the steady flow tank (1) and the water outlet collecting pipe (2). The utility model further comprises a plurality of first valves (5) corresponding to the water pumps (3), the water inlet of the first valve (5) being connected to the water outlet of the corresponding water pump (3), and the water outlet being connected to the corresponding collecting hole through the second pipe (42). The utility model further comprises a plurality of check valves (6) corresponding to the water pumps (3), which are arranged between the corresponding water pump (3) and the first valve (5). The utility model further comprises a vacuum inhibitor (7) arranged on the top of the steady flow tank (1).

7. The secondary water supply system according to claim 6, wherein The vacuum inhibitor (7) comprises a housing (71) fixedly arranged on the top of the steady flow tank (1), a floating ball valve (72) fixedly arranged in the housing (71), and an exhaust pipe (73) fixedly arranged in the housing (71), the bottom end of the exhaust pipe (73) extending to the bottom of the steady flow tank (1) after sequentially passing through the housing (71) and the steady flow tank (1). The vacuum inhibitor (7) further comprises a liquid level sensor (74) fixedly arranged on the housing (71), the sensing end of the liquid level sensor (74) being located inside the housing (71) and being not lower than the height at which the floating ball valve (72) is located, and a normally open electromagnetic valve (75) fixedly mounted on the exhaust pipe (73). The utility model further comprises a pressure tank (8) connected to the water outlet collecting pipe (2).

8. The secondary water supply system according to claim 1, wherein The utility model relates to a secondary water supply system, which comprises a steady flow tank (1) having a water inlet (11) and a plurality of water discharge holes; a water outlet collecting pipe (2) having a water outlet (21) and a plurality of collecting holes corresponding to the water discharge holes; a plurality of water pumps (3) corresponding to the water discharge holes; a plurality of pipe groups (4) corresponding to the water discharge holes, each pipe group (4) comprising a first pipe (41) and a second pipe (42), the water inlet of the water pump (3) being connected to the corresponding water discharge hole through the first pipe (41), and the water outlet being connected to the corresponding collecting hole through the second pipe (42).

9. A secondary water supply apparatus cabinet, characterized by, The steady flow tank (1) and the water outlet collecting pipe (2) are vertically distributed side by side, and a plurality of water pumps (3) are located on the same side of the steady flow tank (1) and the water outlet collecting pipe (2). The utility model further comprises a plurality of first valves (5) corresponding to the water pumps (3), the water inlet of the first valve (5) being connected to the water outlet of the corresponding water pump (3), and the water outlet being connected to the corresponding collecting hole through the second pipe (42). The utility model further comprises a plurality of check valves (6) corresponding to the water pumps (3), which are arranged between the corresponding water pump (3) and the first valve (5). The utility model further comprises a vacuum inhibitor (7) arranged on the top of the steady flow tank (1).

10. The secondary water supply apparatus cabinet according to claim 9, characterized by The vacuum inhibitor (7) comprises a housing (71) fixedly arranged on the top of the steady flow tank (1), a floating ball valve (72) fixedly arranged in the housing (71), and an exhaust pipe (73) fixedly arranged in the housing (71), the bottom end of the exhaust pipe (73) extending to the bottom of the steady flow tank (1) after sequentially passing through the housing (71) and the steady flow tank (1). The vacuum inhibitor (7) further comprises a liquid level sensor (74) fixedly arranged on the housing (71), the sensing end of the liquid level sensor (74) being located inside the housing (71) and being not lower than the height at which the floating ball valve (72) is located, and a normally open electromagnetic valve (75) fixedly mounted on the exhaust pipe (73). The utility model further comprises a pressure tank (8) connected to the water outlet collecting pipe (2). The utility model relates to a secondary water supply system, which comprises a steady flow tank (1) having a water inlet (11) and a plurality of water discharge holes; a water outlet collecting pipe (2) having a water outlet (21) and a plurality of collecting holes corresponding to the water discharge holes; a plurality of water pumps (3) corresponding to the water discharge holes; a plurality of pipe groups (4) corresponding to the water discharge holes, each pipe group (4) comprising a first pipe (41) and a second pipe (42), the water inlet of the water pump (3) being connected to the corresponding water discharge hole through the first pipe (41), and the water outlet being connected to the corresponding collecting hole through the second pipe (42). The steady flow tank (1) and the water outlet collecting pipe (2) are vertically distributed side by side, and a plurality of water pumps (3) are located on the same side of the steady flow tank (1) and the water outlet collecting pipe (2). The utility model further comprises a plurality of first valves (5) corresponding to the water pumps (3), the water inlet of the first valve (5) being connected to the water outlet of the corresponding water pump (3), and the water outlet being connected to the corresponding collecting hole through the second pipe (42). The utility model further comprises a plurality of check valves (6) corresponding to the water pumps (3), which are arranged between the corresponding water pump (3) and the first valve (5). The utility model further comprises a vacuum inhibitor (7) arranged on the top of the steady flow tank (1). The vacuum inhibitor (7) comprises a housing (71) fixedly arranged on the top of the steady flow tank (1), a floating ball valve (72) fixedly arranged in the housing (71), and an exhaust pipe (73) fixedly arranged in the housing (71), the bottom end of the exhaust pipe (73) extending to the bottom of the steady flow tank (1) after sequentially passing through the housing (71) and the steady flow tank (1). The vacuum inhibitor (7) further comprises a liquid

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