Pipe network tail end peak regulation pump station
By designing the peak-shaving pump station at the end of the pipeline network, using water tanks, water storage tanks and control cabinets to regulate the inlet and outlet water, the problem of insufficient water supply in the tap water supply pipeline network during peak periods is solved, and efficient water supply guarantee and energy-saving effects are achieved.
Patent Information
- Application Number
- CN202420271707.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-04
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-02-04
AI Technical Summary
During peak periods, tap water supply pipelines often experience insufficient water supply and no water available, especially in rural areas, which is difficult to meet water demand.
A pipe network end peak regulating pump station is designed, including a water tank, water storage tank and control cabinet. By controlling the solenoid valve and pressurized pump, the inlet and outlet water are adjusted, and the design of the tap water end peak regulating system is realized.
The system can ensure that the inlet flow is less than the outlet flow during peak periods, reduce the maximum flow burden of the upstream pipeline network, expand the water supply guarantee capacity during peak periods, and save energy by 30-50% through stacked water supply.
Smart Images
Figure CN222822413U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tap water supply, in particular to a peak-shaving pump station at the end of a pipe network. Background Art
[0002] With the improvement of the penetration rate of tap water, the water supply network has been extended from cities to towns and villages, and an integrated urban and rural water supply network system has been established. The water supply range and volume of the water supply companies have been significantly increased. The original water supply of the water plant cannot meet the current water use requirements. The water supply requires the laying of longer water supply pipelines to reach the end of the water use. Due to the many losses along the pipeline network and the difficulty in finding the leakage points, the water pressure in rural areas is often insufficient.
[0003] Therefore, when the water supply in the tap water network is concentrated during peak hours, there is a situation where the water supply is insufficient and no water is available.
[0004] The existing solutions are as follows:
[0005] 1. Shut down township water plants with poor raw water quality or backward water production technology and transform them into traditional mid-stream booster pump stations;
[0006] 2. Increase the water outlet pressure of the water plant and expand its water supply capacity;
[0007] 3. Build or expand water plants and expand the scale of water intake and water delivery facilities;
[0008] The above solutions are complicated and cumbersome, have a long construction period, occupy a large area, require high investment, are time-consuming and labor-intensive, and are difficult to manage in the later stage, which is not conducive to long-term operation. Summary of the invention
[0009] The utility model aims to provide a peak-shaving pump station at the end of a pipe network.
[0010] In order to achieve the above purpose, the technical solution of the utility model is:
[0011] A peak-shaving pump station at the end of a pipe network, characterized in that it includes a water tank, a water storage tank and a control cabinet, the pipeline at the water inlet of the water storage tank is provided with a water inlet node, a first pressure sensor and a solenoid valve in sequence along the water inlet direction, the upper part of the water tank is connected with the water inlet node through a water inlet pipeline, the water inlet pipeline is provided with an electric regulating valve, a high liquid level float and a low liquid level float are provided in the water tank, the pressure sensor, the electric regulating valve, the high liquid level float and the low liquid level float are all electrically connected to the control cabinet, the water outlet of the water storage tank is provided with a second pressure sensor, the lower part of the water tank is connected with the water storage tank through a water supply pipeline, the water supply pipeline is provided with a booster pump, the booster pump is electrically connected to the control cabinet, the water outlet of the water storage tank is connected to the water outlet pipeline, the water outlet pipeline is provided with a booster pump, and the water output by the booster pump is used as user water.
[0012] Furthermore, the water pipeline includes a first water pipeline and a second water pipeline arranged in parallel, the first water pipeline is provided with a first water inlet conversion device, and the second water pipeline is provided with a booster pump and a second water inlet conversion device in sequence along the water delivery direction.
[0013] Furthermore, the water storage tank is provided with a plurality of water outlet pipelines, the water outlet pipelines are arranged in parallel, and each water outlet pipeline is provided with a pressure pump.
[0014] The utility model takes the water tank and the water storage tank as the main body, and the control cabinet controls the solenoid valve and the booster pump to adjust the water inlet between the upstream pipeline-water tank, the upstream pipeline-water storage tank and the water tank-water storage tank. A tap water terminal peak regulation system is designed to help the tap water company improve the regional water supply capacity and stabilize the tap water supply network pressure. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the system structure of the utility model.
[0016] Reference numerals:
[0017] 1. First pressure sensor, 2. Solenoid valve, 3. Electric regulating valve, 4. High liquid level float, 5. Low liquid level float,
[0018] 6 first water inlet conversion device, 7 booster pump, 8 second water inlet conversion device, 9 second pressure sensor,
[0019] 10: pressure pump, 11: control cabinet, 12: water tank, 13: water storage tank. DETAILED DESCRIPTION
[0020] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] The utility model discloses a peak-shaving pump station at the end of a pipe network, such as Figure 1 As shown, it includes a water tank 12, a water storage tank 13 and a control cabinet 11. The pipeline of the water inlet of the water storage tank 13 is provided with a water inlet node, a first pressure sensor 1 and a solenoid valve 2 in sequence along the water inlet direction. The upper part of the water tank 12 is connected to the water inlet node through the water inlet pipeline. The water inlet pipeline is provided with an electric regulating valve 3. A high liquid level float 4 and a low liquid level float 5 are provided in the water tank 12. The pressure sensor, the electric regulating valve 3, the high liquid level float 4 and the low liquid level float 5 are all electrically connected to the control cabinet 11. The water outlet of the water storage tank 13 is provided with a second pressure sensor 9.
[0022] The upstream pipe network pressure is measured by the first pressure sensor 1, and the signal is fed back to the control cabinet 11. According to the signal feedback, the control cabinet 11 adjusts the opening of the electric regulating valve 3 to control the water inflow of the water tank 12; at the same time, the control cabinet 11 adjusts different water supply modes to ensure that the entire system does not affect the upstream tap water pipe network under the premise of normal water supply.
[0023] The lower part of the water tank 12 is connected to the water storage tank 13 through a water supply pipeline, which includes a first water supply pipeline and a second water supply pipeline arranged in parallel. The first water supply pipeline is provided with a first water inlet conversion device 6, and the second water supply pipeline is provided with a booster pump 7 and a second water inlet conversion device 8 in sequence along the water supply direction. The booster pump 7 is electrically connected to the control cabinet 11.
[0024] The water storage tank 13 is provided with a plurality of water outlet pipelines, which are arranged in parallel. Each water outlet pipeline is provided with a booster pump 10, and the water outputted from one booster pump 10 is used as water for one user.
[0025] The specific application scheme of the utility model peak-shaving pump station is as follows:
[0026] like Figure 1 As shown, when the pressure detected by the first pressure sensor 1 is above the set normal value (i.e. during the low water usage period), the water inlet pressure must be greater than or equal to the set pressure of the second pressure sensor 9, and the solenoid valve 2 is opened normally. The municipal pipe network is directly used for water inlet without affecting the municipal pipe network. At this time, the water inlet pressure of the municipal pipe network is superimposed, which can greatly reduce the head of the booster pump 10 and supply water to the downstream of the booster pump 10; at the same time, the electric regulating valve 3 is fully opened, and the water tank 12 is automatically replenished with water according to the liquid level.
[0027] The water replenishment method is that when the low liquid level float 5 is triggered, water is continuously introduced through the upstream pipe network until the high liquid level float 4 is triggered.
[0028] When the pressure detected by the first pressure sensor 1 is lower than the set normal value but higher than the set low pressure value (i.e., water consumption is high but has not reached the peak), the solenoid valve 2 is normally opened. Part of the municipal pipe network water is used without affecting the municipal pipe network. The other part of the water is drawn from the water tank 12 by the booster pump 7 for water replenishment. The water inlet pressure needs to be greater than or equal to the set pressure of the second pressure sensor 9. At this time, the water inlet pressure can be superimposed to significantly reduce the lift of the booster pump 10 and supply water to the downstream of the booster pump 10. At the same time, the electric regulating valve 3 reduces its opening to reduce the water inflow into the water tank 12.
[0029] When the pressure detected by the first pressure sensor 1 is lower than the set low pressure value (i.e. the peak water usage period), the solenoid valve 2 is closed, and the booster pump 10 directly draws water from the water tank 12 through the first water inlet conversion device 6 to supply water to the downstream booster pump 10. At this time, the pump station cannot add water inlet pressure; at the same time, the electric regulating valve 3 is completely closed to prevent water from entering the water tank 12.
[0030] When the peak period ends and the pressure detected by the first pressure sensor 1 is above the set normal value (i.e., during the low water consumption period), the above steps are repeated in a cycle.
[0031] The above solution can ensure that the water inlet flow rate during peak periods is less than the water outlet flow rate, reduce the maximum flow burden of the upstream pipeline network, and expand the peak water supply guarantee capacity of the upstream pipeline network; more than 80% of the water supply of the pump station is superimposed water supply, compared with the traditional transfer booster pump station, it can save 30-50% energy.
[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A peak-shaving pump station at the end of a pipe network, characterized in that: It comprises a water tank, a water storage tank and a control cabinet, wherein the pipeline of the water inlet of the water storage tank is provided with a water inlet node, a first pressure sensor and a solenoid valve in sequence along the water inlet direction, the upper part of the water tank is communicated with the water inlet node through the water inlet pipeline, the water inlet pipeline is provided with an electric regulating valve, a high liquid level float and a low liquid level float are arranged in the water tank, the pressure sensor, the electric regulating valve, the high liquid level float and the low liquid level float are all electrically connected to the control cabinet, the water outlet of the water storage tank is provided with a second pressure sensor, the lower part of the water tank is communicated with the water storage tank through a water delivery pipeline, the delivery pipeline The water pipeline is provided with a booster pump, which is electrically connected to the control cabinet. The water outlet of the water storage tank is connected to the water outlet pipeline, which is provided with a booster pump. The water output by the booster pump is used as user water. The water delivery pipeline includes a first water delivery pipeline and a second water delivery pipeline arranged in parallel. The first water delivery pipeline is provided with a first water inlet conversion device, and the second water delivery pipeline is provided with a booster pump and a second water inlet conversion device in sequence along the water delivery direction. The water storage tank is provided with a plurality of water outlet pipelines, which are arranged in parallel, and each water outlet pipeline is provided with a booster pump.