Absolute pressure secondary water supply equipment

Abstract

The present invention is applicable to the technical field of water supply equipment, and provides an absolute pressure secondary water supply equipment, including a water source component, a secondary water supply component and a vacuum pump component; by arranging a water level sensor, a vacuum pump and a vertical centrifugal pump, the water level sensor can detect the water level height of the inner cavity of the vacuum drainage tank in real time; when the water level sensor detects that the water level in the vacuum drainage tank is at a lower limit, the vacuum pump starts to extract the air in the vacuum drainage tank and the pipeline, so that the water in the inner cavity of the concrete pool is sucked into the inner cavity of the vacuum drainage tank through the water pipe; when the water level sensor detects that the water level in the vacuum drainage tank is at a higher limit, the vacuum pump stops working, and then the vertical centrifugal pump starts working, thereby avoiding the problem that most traditional secondary water supplies use multi-stage vertical centrifugal pumps, and the water source needs to enter the pump body in the form of water gravity, while the water supply pool is below the ground level, and the pump group is installed above the ground level, which makes it difficult to meet the self-filling conditions of the original water supply unit.

Description

Technical Field

[0001] The invention belongs to the technical field of water supply equipment, and in particular relates to an absolute pressure secondary water supply equipment. Background Art

[0002] Secondary water supply refers to the form in which units or individuals store and pressurize urban public water supply or self-built facilities water, and then supply it to users or for their own use through pipelines. Secondary water supply is mainly established to compensate for the lack of pressure in municipal water supply pipelines and to ensure water supply for people living and working in high-rise areas. Whether the secondary water supply facilities are built, designed and constructed in accordance with regulations is directly related to the water quality, water pressure and water supply safety of the secondary water supply, and is closely related to the normal and stable life of the people. Compared with raw water supply, the water quality of secondary water supply is more easily polluted.

[0003] Traditional secondary water supply mostly uses multi-stage vertical centrifugal pumps, which require water to enter the pump body through gravity. However, the water supply tank is below the ground level and the pump unit is installed above the ground level, which makes it difficult to meet the self-priming conditions of the original water supply unit. Summary of the invention

[0004] The present invention provides an absolute pressure secondary water supply device, aiming to solve the problem that most traditional secondary water supply uses multi-stage vertical centrifugal pumps, and water source needs to enter the pump body by gravity, while the water supply pool is below the ground level and the pump unit is installed above the ground level, which makes it difficult to meet the self-priming conditions of the original water supply unit.

[0005] The present invention is implemented as follows: an absolute pressure secondary water supply device comprises a water source component, a secondary water supply component and a vacuum pumping component, wherein the water source component comprises a concrete water pool and a water pipe, wherein the water pipe is fixedly connected to the concrete water pool, and the water pipe penetrates the concrete water pool and extends to the inner cavity of the concrete water pool;

[0006] The secondary water supply assembly includes a vacuum drainage tank, a second valve, a vertical centrifugal pump, an air pressure tank, a water outlet pipe and a water level sensor. The input end of the vacuum drainage tank is connected to the water pipe. The second valve is fixedly connected to the vacuum drainage tank and is located at the output end of the vacuum drainage tank. The vertical centrifugal pump is fixedly connected to the second valve and is located at an end of the second valve away from the vacuum drainage tank. The air pressure tank is fixedly connected to the vertical centrifugal pump and is located on a side of the vertical centrifugal pump away from the second valve. The water outlet pipe is fixedly connected to the air pressure tank and is located at an end of the air pressure tank away from the vertical centrifugal pump. The water level sensor is fixedly connected to the vacuum drainage tank and is located in an inner cavity of the water level sensor.

[0007] Preferably, the vacuum pumping assembly includes a third valve, a steam-water separator, a vacuum pump and an exhaust pipe, the third valve is fixedly connected to the vacuum drainage tank, and the third valve is communicated with the vacuum drainage tank, the steam-water separator is fixedly connected to the third valve, and the third valve is away from one end of the vacuum drainage tank, the vacuum pump is fixedly connected to the steam-water separator, and the vacuum pump is located at the output end of the steam-water separator, and the exhaust pipe is fixedly connected to the vacuum pump, and the exhaust pipe is located at the output end of the vacuum pump.

[0008] Preferably, the water source component further comprises a filter, the filter is fixedly connected to the water pipe, and the filter is connected in series to the water pipe.

[0009] Preferably, the water source assembly further includes a liquid level sensor, the liquid level sensor is fixedly connected to the concrete water pool, and the liquid level sensor is located in the inner cavity of the concrete water pool.

[0010] Preferably, the water source component further includes a first valve, the first valve is fixedly connected to both the water pipe and the liquid level sensor, and the first valve is connected in series between the water pipe and the liquid level sensor.

[0011] Preferably, the secondary water supply assembly further comprises a check valve, the check valve is fixedly connected to the vertical centrifugal pump and the water outlet pipe, and the check valve is located between the vertical centrifugal pump and the water outlet pipe;

[0012] The secondary water supply assembly further comprises a water pressure sensor, which is fixedly connected to the vertical centrifugal pump and is located at one end of the vertical centrifugal pump away from the second valve.

[0013] Preferably, the secondary water supply assembly further includes a third valve, the third valve is fixedly connected to the check valve and the water pressure sensor, and the third valve is located between the check valve and the water pressure sensor.

[0014] Preferably, the secondary water supply assembly further includes a flow sensor, the flow sensor is fixedly connected to the water pressure sensor and the water outlet pipe, and the flow sensor is located between the water pressure sensor and the water outlet pipe.

[0015] Preferably, the water source assembly further includes a controller, and the controller is electrically connected to the vacuum pump, the vertical centrifugal pump and the water level sensor.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the absolute pressure secondary water supply equipment of the present invention is provided with a water level sensor, a vacuum pump and a vertical centrifugal pump, so that the water level sensor can detect the water level height of the inner cavity of the vacuum drainage tank in real time. When the water level sensor detects that the water level in the vacuum drainage tank is at a lower limit, the vacuum pump starts to extract the air in the vacuum drainage tank and the pipeline, so that the vacuum drainage tank, that is, the pipeline, is in a negative pressure state, thereby the water in the inner cavity of the concrete pool is sucked into the inner cavity of the vacuum drainage tank through the water pipe. When the water level sensor detects that the water level in the vacuum drainage tank is at a lower limit, the vacuum pump starts to extract the air in the vacuum drainage tank and the pipeline, so that the vacuum drainage tank, that is, the pipeline, is in a negative pressure state. When the water level in the vacuum drainage tank is at the upper limit, the vacuum pump stops working, and then the vertical centrifugal pump starts working, so that the water is pressurized again, realizing "water source below, equipment above". The multi-stage vertical centrifugal pump is still used for water supply, which has the advantages of high degree of automation, deep degree of integration, and joint use of multiple pump types. It avoids the problem that most traditional secondary water supply uses multi-stage vertical centrifugal pumps, and the water source needs to enter the pump body through gravity, while the water supply pool is below the ground level and the pump unit is installed above the ground level, which makes it difficult to meet the self-priming conditions of the original water supply unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the secondary water supply component of the present invention;

[0019] Figure 3 This is a principle block diagram of the present invention.

[0020] In the figure: 1-water source component, 11-concrete water tank, 12-liquid level sensor, 13-water pipe, 14-filter, 15-first valve, 2-secondary water supply component, 21-vacuum drainage tank, 22-second valve, 23-vertical centrifugal pump, 24-check valve, 25-third valve, 26-water pressure sensor, 27-air pressure tank, 28-water outlet pipe, 29-flow sensor, 210-water level sensor, 211-controller, 3-vacuum assembly, 31-third valve, 32-steam-water separator, 33-vacuum pump, 34-exhaust pipe. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] See also Figure 1-3The present invention provides a technical solution: an absolute pressure secondary water supply device, comprising a water source component 1, a secondary water supply component 2 and a vacuum component 3, the water source component 1 comprising a concrete water pool 11 and a water pipe 13, the water pipe 13 is fixedly connected to the concrete water pool 11, and the water pipe 13 penetrates the concrete water pool 11 and extends to the inner cavity of the concrete water pool 11;

[0023] The secondary water supply component 2 includes a vacuum drainage tank 21, a second valve 22, a vertical centrifugal pump 23, an air pressure tank 27, a water outlet pipe 28 and a water level sensor 210. The input end of the vacuum drainage tank 21 is connected to the water pipe 13. The second valve 22 is fixedly connected to the vacuum drainage tank 21 and is located at the output end of the vacuum drainage tank 21. The vertical centrifugal pump 23 is fixedly connected to the second valve 22 and is located at an end of the second valve 22 away from the vacuum drainage tank 21. The air pressure tank 27 is fixedly connected to the vertical centrifugal pump 23 and is located on a side of the vertical centrifugal pump 23 away from the second valve 22. The water outlet pipe 28 is fixedly connected to the air pressure tank 27 and is located at an end of the air pressure tank 27 away from the vertical centrifugal pump 23. The water level sensor 210 is fixedly connected to the vacuum drainage tank 21 and is located in the inner cavity of the water level sensor 210.

[0024] The vacuum pumping assembly 3 includes a third valve 31, a steam-water separator 32, a vacuum pump 33 and an exhaust pipe 34. The third valve 31 is fixedly connected to the vacuum drainage tank 21, and the third valve 31 is communicated with the vacuum drainage tank 21. The steam-water separator 32 is fixedly connected to the third valve 31, and the third valve 31 is far away from one end of the vacuum drainage tank 21. The vacuum pump 33 is fixedly connected to the steam-water separator 32, and the vacuum pump 33 is located at the output end of the steam-water separator 32. The exhaust pipe 34 is fixedly connected to the vacuum pump 33, and the exhaust pipe 34 is located at the output end of the vacuum pump 33.

[0025] In this embodiment, by providing a water level sensor 210, a vacuum pump 33 and a vertical centrifugal pump 23, the water level sensor 210 can detect the water level height of the inner cavity of the vacuum drainage tank 21 in real time. When the water level sensor 210 detects that the water level in the vacuum drainage tank 21 is at a lower limit, the vacuum pump 33 starts to extract the air in the vacuum drainage tank 21 and the pipeline, so that the vacuum drainage tank 21, i.e., the pipeline, is in a negative pressure state, thereby sucking the water in the inner cavity of the concrete pool 11 into the inner cavity of the vacuum drainage tank 21 through the water pipe 13. When the water level sensor 210 detects that the water level in the vacuum drainage tank 21 is at a lower limit, the vacuum pump 33 starts to extract the air in the vacuum drainage tank 21 and the pipeline, so that the vacuum drainage tank 21, i.e., the pipeline, is in a negative pressure state. When the water level in the vacuum drainage tank 21 is at the upper limit, the vacuum pump 33 stops working, and then the vertical centrifugal pump 23 starts working, so that the water is pressurized again, realizing "water source below, equipment above". The multi-stage vertical centrifugal pump is still used for water supply, which has the advantages of high degree of automation, deep degree of integration, and joint use of multiple pump types. It avoids the problem that most traditional secondary water supply uses multi-stage vertical centrifugal pumps, and the water source needs to enter the pump body through the form of water gravity, while the water supply pool is below the ground level and the pump unit is installed above the ground level, which makes it difficult to meet the self-filling conditions of the original water supply unit.

[0026] Furthermore, the water source component 1 also includes a filter 14 , which is fixedly connected to the water pipe 13 and is connected in series to the water pipe 13 .

[0027] In this embodiment, by providing a filter 14, the water flowing through the inner cavity of the water pipe 13 can be filtered to prevent impurities from being discharged into the secondary water supply device.

[0028] Furthermore, the water source component 1 also includes a first valve 15 , which is fixedly connected to both the water pipe 13 and the liquid level sensor 12 , and the first valve 15 is connected in series between the water pipe 13 and the liquid level sensor 12 .

[0029] In this embodiment, the first valve 15 can be provided to control the flow between the water pipe 13 and the vacuum drainage tank 21 to close the secondary water supply device.

[0030] Furthermore, the water source assembly 1 also includes a liquid level sensor 12 , which is fixedly connected to the concrete water pool 11 , and the liquid level sensor 12 is located in the inner cavity of the concrete water pool 11 .

[0031] In this embodiment, the liquid level sensor 12 is provided to detect the water level in the inner cavity of the concrete water pool 11 in real time, thereby determining the water storage amount in the concrete water pool 11 .

[0032] Furthermore, the secondary water supply assembly 2 further includes a check valve 24, which is fixedly connected to the vertical centrifugal pump 23 and the water outlet pipe 28, and the check valve 24 is located between the vertical centrifugal pump 23 and the water outlet pipe 28;

[0033] The secondary water supply assembly 2 further includes a water pressure sensor 26 , which is fixedly connected to the vertical centrifugal pump 23 , and is located at one end of the vertical centrifugal pump 23 away from the second valve 22 .

[0034] In this embodiment, by setting a check valve 24 between the vertical centrifugal pump 23 and the water outlet pipe 28, it is possible to effectively prevent the water supply from flowing back and causing the pressure in the vacuum drainage tank 21 to increase; by setting a water pressure sensor 26, it can be used to detect the water pressure of the water supply.

[0035] Furthermore, the secondary water supply assembly 2 also includes a third valve 25 , which is fixedly connected to the check valve 24 and the water pressure sensor 26 , and the third valve 25 is located between the check valve 24 and the water pressure sensor 26 .

[0036] In this embodiment, by disposing the third valve 25 between the check valve 24 and the water pressure sensor 26, the opening and closing of the third valve 25 can control the amount of water in the secondary water supply.

[0037] Furthermore, the secondary water supply assembly 2 also includes a flow sensor 29 , which is fixedly connected to the water pressure sensor 26 and the water outlet pipe 28 , and the flow sensor 29 is located between the water pressure sensor 26 and the water outlet pipe 28 .

[0038] In this embodiment, a flow sensor 29 is provided between the water pressure sensor 26 and the water outlet pipe 28 so that the flow sensor 29 can be used to detect the amount of water supplied by the secondary water supply.

[0039] Furthermore, the water source assembly 1 also includes a controller 211 , and the controller 211 is electrically connected to the vacuum pump 33 , the vertical centrifugal pump 23 and the water level sensor 210 .

[0040] In this embodiment, by setting up a controller 211 and connecting the controller 211 to the vacuum pump 33, the vertical centrifugal pump 23 and the water level sensor 210, the controller 211 can detect the water level of the vacuum drainage tank 21 according to the water level sensor 210, control the vertical centrifugal pump 23 and the vacuum pump 33 to start working, and realize automatic secondary water supply.

[0041] Working principle and use process of the present invention: After the present invention is installed, the water outlet pipe 28 is connected to the water supply network, and the water level sensor 210 can detect the water level height of the inner cavity of the vacuum drainage pot 21 in real time and transmit it to the controller 211. When the water level sensor 210 detects that the water level in the vacuum drainage pot 21 is at the lower limit, the controller 211 controls the vacuum pump 33 to start, thereby extracting the air in the vacuum drainage pot 21 and the pipeline, so that the vacuum drainage pot 21, that is, the pipeline, is in a negative pressure state, thereby sucking the water in the inner cavity of the concrete pool 11 into the inner cavity of the vacuum drainage pot 21 through the water pipe 13. When the water level sensor 210 detects that the water level in the vacuum drainage pot 21 is at the upper limit, the controller 211 controls the vacuum pump 33 to stop working, and then the controller 211 controls the vertical centrifugal pump 23 to start working, so that the water is pressurized again to achieve secondary water supply.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An absolute pressure secondary water supply device, characterized in that: The invention comprises a water source component (1), a secondary water supply component (2) and a vacuum component (3), wherein the water source component (1) comprises a concrete water pool (11) and a water pipe (13), wherein the water pipe (13) is fixedly connected to the concrete water pool (11), and the water pipe (13) passes through the concrete water pool (11) and extends to the inner cavity of the concrete water pool (11); The secondary water supply assembly (2) comprises a vacuum drainage tank (21), a second valve (22), a vertical centrifugal pump (23), an air pressure tank (27), a water outlet pipe (28) and a water level sensor (210); the input end of the vacuum drainage tank (21) is connected to the water pipe (13); the second valve (22) is fixedly connected to the vacuum drainage tank (21), and the second valve (22) is located at the output end of the vacuum drainage tank (21); the vertical centrifugal pump (23) is fixedly connected to the second valve (22), and the vertical centrifugal pump (23) is located at the second valve (22). The air pressure tank (27) is fixedly connected to the vertical centrifugal pump (23) at one end away from the vacuum drainage tank (21), and the air pressure tank (27) is located at a side of the vertical centrifugal pump (23) away from the second valve (22). The water outlet pipe (28) is fixedly connected to the air pressure tank (27), and the water outlet pipe (28) is located at one end of the air pressure tank (27) away from the vertical centrifugal pump (23). The water level sensor (210) is fixedly connected to the vacuum drainage tank (21), and the water level sensor (210) is located in the inner cavity of the water level sensor (210); The vacuum pumping assembly (3) comprises a third valve (31), a steam-water separator (32), a vacuum pump (33) and an exhaust pipe (34); the third valve (31) is fixedly connected to the vacuum drainage tank (21), and the third valve (31) is in communication with the vacuum drainage tank (21); the steam-water separator (32) is fixedly connected to the third valve (31), and the third valve (31) is at one end away from the vacuum drainage tank (21); the vacuum pump (33) is fixedly connected to the steam-water separator (32), and the vacuum pump (33) is located at the output end of the steam-water separator (32); and the exhaust pipe (34) is fixedly connected to the vacuum pump (33), and the exhaust pipe (34) is located at the output end of the vacuum pump (33).

2. The absolute pressure secondary water supply equipment according to claim 1, characterized in that: The water source component (1) further comprises a filter (14), wherein the filter (14) is fixedly connected to the water pipe (13), and the filter (14) is connected in series to the water pipe (13).

3. The absolute pressure secondary water supply equipment according to claim 1, characterized in that: The water source component (1) further comprises a liquid level sensor (12), wherein the liquid level sensor (12) is fixedly connected to the concrete water pool (11), and the liquid level sensor (12) is located in the inner cavity of the concrete water pool (11).

4. The absolute pressure secondary water supply equipment according to claim 3, characterized in that: The water source component (1) further comprises a first valve (15), wherein the first valve (15) is fixedly connected to both the water pipe (13) and the liquid level sensor (12), and the first valve (15) is connected in series between the water pipe (13) and the liquid level sensor (12).

5. The absolute pressure secondary water supply equipment according to claim 1, characterized in that: The secondary water supply component (2) further comprises a check valve (24), the check valve (24) being fixedly connected to the vertical centrifugal pump (23) and the water outlet pipe (28), and the check valve (24) being located between the vertical centrifugal pump (23) and the water outlet pipe (28); the secondary water supply component (2) further comprises a water pressure sensor (26), the water pressure sensor (26) being fixedly connected to the vertical centrifugal pump (23), and the water pressure sensor (26) being located at an end of the vertical centrifugal pump (23) away from the second valve (22).

6. The absolute pressure secondary water supply equipment according to claim 5, characterized in that: The secondary water supply assembly (2) further comprises a flow sensor (29), wherein the flow sensor (29) is fixedly connected to the water pressure sensor (26) and the water outlet pipe (28), and the flow sensor (29) is located between the water pressure sensor (26) and the water outlet pipe (28).

7. The absolute pressure secondary water supply equipment according to claim 1, characterized in that: The water source component (1) further comprises a controller (211), wherein the controller (211) is electrically connected to the vacuum pump (33), the vertical centrifugal pump (23) and the water level sensor (210).

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