Multi-pump non-negative pressure device water supply device

Abstract

The utility model relates to water supply device technical field especially relates to a kind of multi-pump type non-negative pressure equipment water supply device, including base, steady flow mechanism, water inlet mechanism, booster assembly, water outlet mechanism and frequency conversion control cabinet;The rear end of base is equipped with water inlet mechanism in upper portion, and the lower portion of water inlet mechanism is equipped with steady flow mechanism, and steady flow mechanism includes three groups of steady flow compensation tank, and the front end of base is equipped with water outlet mechanism for connecting cell water supply pipeline in upper portion, and booster assembly for adjusting water supply pressure is equipped between water outlet mechanism and steady flow mechanism, and frequency conversion control cabinet is equipped at the surface front end one side edge of base;The utility model realizes that three groups of steady flow compensation tank of steady flow mechanism can be flexibly adjusted working condition according to actual water flow condition, when municipal water supply flow is less, part steady flow compensation tank can be used to steady flow;When flow suddenly increases, three groups of steady flow compensation tank work simultaneously, enhance steady flow capacity, timely steady flow adjustment to water flow.

Description

Technical Field

[0001] This utility model relates to the field of water supply device technology, and in particular to a multi-pump negative pressure-free water supply device. Background Technology

[0002] With the large-scale development of urban residential communities, water demand surges during peak hours, while the pressure of municipal water supply networks often becomes unstable. When the municipal water supply pressure is lower than the pressure required by users, traditional water supply devices are prone to problems such as water outages and sudden drops in water pressure. Especially during the morning, noon and evening peak water usage periods, high-rise residents often face the dilemma of insufficient water flow and poor water experience, which cannot meet the continuous and stable water supply demand. Therefore, it is necessary to use corresponding negative pressure-free water supply devices to regulate the water pressure in the community.

[0003] Existing negative pressure-free water supply systems generally employ a single flow stabilizer tank design. In actual use, a single flow stabilizer tank is insufficient to effectively address the problem of unstable water flow. Due to its limited flow stabilization capacity, it cannot promptly adjust the flow when the municipal water supply flow changes suddenly, leading to unstable water flow entering the booster components. This, in turn, affects the outlet pressure and flow of the entire water supply system, resulting in insufficient pressure and fluctuating water flow in the community. Consequently, it fails to meet the stable and sufficient water demand of the community residents, impacting their normal lives.

[0004] Therefore, in response to the problems existing in the use of the above-mentioned existing multi-pump negative pressure-free water supply devices, a multi-pump negative pressure-free water supply device can be designed. By designing three sets of flow stabilization compensation tanks, they can work independently or in concert, and can be flexibly adjusted according to the actual water flow conditions to better adapt to various changes in municipal water supply, thereby facilitating the solution of the above-mentioned problems. Utility Model Content

[0005] In order to overcome the shortcomings of existing multi-pump negative pressure-free water supply devices, which use a single flow stabilizer tank and are difficult to effectively deal with the problem of unstable water flow, and which have limited flow stabilization capacity, and cannot make timely flow stabilization adjustments when the municipal water supply flow changes suddenly, resulting in unstable water flow entering the booster component, this utility model provides a multi-pump negative pressure-free water supply device.

[0006] The technical solution is as follows: A multi-pump negative pressure-free water supply device includes a base, a flow stabilizing mechanism, a water inlet mechanism, a pressurizing component, a water outlet mechanism, and a frequency converter control cabinet; the upper rear end of the base is provided with a water inlet mechanism for connecting to the municipal water supply pipeline, the lower part of the water inlet mechanism is provided with a flow stabilizing mechanism for adjusting the flow rate, the flow stabilizing mechanism includes three sets of flow stabilizing compensation tanks, the upper front end of the base is provided with a water outlet mechanism for connecting to the community water supply pipeline, a pressurizing component for adjusting the water supply pressure is provided between the water outlet mechanism and the flow stabilizing mechanism, and a frequency converter control cabinet for frequency conversion adjustment is provided on one edge of the front end of the base surface.

[0007] Furthermore, the water inlet mechanism includes a main water inlet pipe, one end of which is equipped with a water inlet connector, the lower end of which is equipped with a three-part flow pipe, the outer end of which is equipped with a three-part flow pipe, the upper end of which is evenly arranged along the outer end of the main water inlet pipe, and two sets of solenoid valves are installed at intervals on the pipe body of the main water inlet pipe, and the three-part flow pipe is separated by the two sets of solenoid valves.

[0008] Furthermore, each of the three sets of flow stabilization compensation tanks has an inlet head on one side of its upper end that connects to the three flow distribution pipes, and each of the three sets of flow stabilization compensation tanks has an outlet head at the center of its lower end.

[0009] Furthermore, a vacuum suppressor is provided on the other side of the upper end of each of the three sets of flow stabilization compensation tanks, and a pressure gauge corresponding to the flow stabilization compensation tank is installed at the bottom of the rear end of each of the three sets of flow stabilization compensation tanks.

[0010] Furthermore, the water outlet mechanism includes a main water outlet pipe, and three sets of manifolds are provided at the lower outer end of the main water outlet pipe. The three sets of manifolds are evenly arranged along the lower outer end of the main water outlet pipe, and a second check valve is installed at the lower end of each of the three sets of manifolds.

[0011] Furthermore, the booster assembly includes three booster pumps. Each of the three booster pumps has a series connector at its rear end, and a series pipe is provided between the three series connectors. Each of the three series connectors has an inlet elbow pipe connected to the outlet head at its rear end. A first check valve is installed between the latter two series connectors and the corresponding inlet elbow pipe. Each of the three booster pumps has an outlet elbow pipe connected to a second check valve at its front end.

[0012] Furthermore, three sets of support frames are evenly provided at the rear edge of the base surface. The three sets of support frames are located below the three sets of flow stabilization compensation tanks. A through hole for accommodating the water outlet head is opened in the center of the three sets of support frames. A pipe bracket is provided at the front edge of the base surface. Three sets of positioning grooves corresponding to the water outlet elbow pipe are linearly opened at the upper end of the pipe bracket.

[0013] The beneficial effect is that, compared with existing multi-pump negative pressure-free water supply devices, this application addresses the problems encountered during use by using three sets of flow stabilization compensation tanks in the flow stabilization mechanism. These tanks can flexibly adjust their operating status according to actual water flow conditions. When the municipal water supply flow is low, only some of the flow stabilization compensation tanks can be used for flow stabilization. When the flow suddenly increases, all three sets of flow stabilization compensation tanks work simultaneously, enhancing the flow stabilization capability and promptly regulating the water flow to prevent instability in the water entering the pressurization component. This solves the problems of insufficient water supply pressure and fluctuating water flow in the community, meeting the stable and sufficient water demand of the residents. Furthermore, the three sets of flow pipes in the water inlet mechanism, combined with two sets of solenoid valves, [further details about the application are needed]. The device can flexibly control the water flow into different distribution pipes and then distribute it to different flow stabilization tanks by opening and closing solenoid valves according to different water flow conditions. This precise water flow distribution and regulation method can better adapt to various changes in municipal water supply flow and improve the device's adaptability to different water supply conditions. The design of three sets of booster pumps working simultaneously in the booster component greatly enhances the boosting capacity compared to single or dual pump boosting methods. Under the regulation of the frequency converter control cabinet, the three sets of booster pumps can automatically adjust their operating frequency according to the water demand of the community, better meet the water supply pressure requirements of the community at different times and with different water volumes, and ensure the stability and reliability of the community's water supply. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the water supply device of this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the base and frequency converter control cabinet of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the water inlet mechanism of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the booster component of this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the water outlet mechanism of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Base; 101. Support frame; 102. Through hole; 103. Pipe bracket; 104. Positioning slot; 2. Flow stabilizing mechanism; 201. Flow stabilizing compensation tank; 202. Outlet head; 203. Inlet head; 204. Vacuum suppressor; 205. Pressure gauge; 3. Water inlet mechanism; 301. Main water inlet pipe; 302. Inlet connector; 303. Diverter pipe; 304. Solenoid valve; 4. Booster assembly; 401. Booster pump; 402. Series connector; 403. Inlet elbow pipe; 404. Outlet elbow pipe; 405. Series pipe; 406. Second check valve; 5. Water outlet mechanism; 501. Main outlet pipe; 502. Manifold; 503. Second check valve; 6. Variable frequency control cabinet. Detailed Implementation

[0020] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0021] In the description of this application, it should be understood that the terms "upper," "lower," "front," "back," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In the description of this application, "multiple" means two or more, unless otherwise precisely specified.

[0022] Example

[0023] like Figures 1-5 As shown, a multi-pump negative pressure-free water supply device includes a base 1, a flow stabilizing mechanism 2, a water inlet mechanism 3, a pressure boosting component 4, a water outlet mechanism 5, and a frequency converter control cabinet 6. The water inlet mechanism 3 for connecting to the municipal water supply pipeline is located above the rear end of the base 1. The flow stabilizing mechanism 2 for adjusting the flow rate is located below the water inlet mechanism 3. The flow stabilizing mechanism 2 includes three sets of flow stabilizing compensation tanks 201. The water outlet mechanism 5 for connecting to the community water supply pipeline is located above the front end of the base 1. The pressure boosting component 4 for adjusting the water supply pressure is located between the water outlet mechanism 5 and the flow stabilizing mechanism 2. The frequency converter control cabinet 6 for frequency conversion adjustment is located on one edge of the front end of the surface of the base 1.

[0024] The water inlet mechanism 3 includes a main water inlet pipe 301, with a water inlet connector 302 at one end. The lower end of the main water inlet pipe 301 is provided with a three-way diversion pipe 303, and the outer end of the three-way diversion pipe 303 is provided with a three-way diversion pipe 303. The upper end of the three-way diversion pipe 303 is evenly arranged along the outer end of the main water inlet pipe 301. Two sets of solenoid valves 304 are installed at intervals on the pipe body of the main water inlet pipe 301. The three-way diversion pipe 303 is separated by the two sets of solenoid valves 304. By cooperating with the two sets of solenoid valves 304, the three-way diversion pipe 303 can flexibly control the water flow into different diversion pipes 303 according to different water flow conditions, and then distribute it to different flow stabilization compensation tanks 201, so as to achieve more precise distribution and regulation of water flow to adapt to changes in municipal water supply flow.

[0025] The upper side of each of the three sets of flow stabilization compensation tanks 201 is provided with an inlet head 203 that connects to the three sets of flow diversion pipes 303. The lower center of each of the three sets of flow stabilization compensation tanks 201 is provided with an outlet head 202. The water flow can smoothly enter the flow stabilization compensation tank 201 for flow stabilization treatment through the inlet head 203 and the outlet head 202, and then flow out from the outlet head 202 into the subsequent pressurization component 4.

[0026] Vacuum suppressors 204 are provided on the other side of the upper end of each of the three sets of flow stabilization compensation tanks 201. Pressure gauges 205 corresponding to the flow stabilization compensation tanks 201 are installed at the bottom of the rear end of each of the three sets of flow stabilization compensation tanks 201. The vacuum suppressors 204 can prevent the generation of vacuum in the flow stabilization compensation tanks 201, avoid adverse effects on the operation of the device, and ensure the stable operation of the device. The pressure gauges 205 can display the pressure inside the flow stabilization compensation tanks 201 in real time.

[0027] The water outlet mechanism 5 includes a main water outlet pipe 501. The lower outer end of the main water outlet pipe 501 is provided with three sets of manifolds 502. The three sets of manifolds 502 are evenly arranged along the lower outer end of the main water outlet pipe 501. Each of the three sets of manifolds 502 is equipped with a second check valve 503. The even arrangement of the three sets of manifolds 502 can reasonably gather the pressurized water flow into the main water outlet pipe 501 to ensure the uniformity of water output. The second check valve 503 can prevent backflow of water and ensure unidirectional flow of water.

[0028] The booster assembly 4 includes three booster pumps 401 (model LVR12-16). Each of the three booster pumps 401 has a series connector 402 at its rear end. A series pipe 405 connects the three series connectors 402. Each of the three series connectors 402 has an inlet elbow pipe 403 at its rear end, connecting to the outlet head 202. A first check valve 406 is installed between the latter two series connectors 402 and their corresponding inlet elbow pipes 403. The booster pumps 401... Each end is equipped with an outlet elbow pipe 404 connected to the second check valve 503. With the three sets of booster pumps 401 working simultaneously, the boosting capacity can be enhanced to better meet the water supply pressure requirements of the community. The first check valve 406 prevents water from flowing into the corresponding pipeline of the subsequent flow stabilization tank 201 when the first set of flow stabilization compensation tank 201 is working alone, ensuring the normal and stable operation of the booster pump 401. The outlet elbow pipe 404 realizes the smooth transmission of water from the booster pump 401 to the outlet mechanism 5.

[0029] Three sets of support frames 101 are evenly provided at the rear edge of the surface of the base 1. The three sets of support frames 101 are located below the three sets of flow stabilization compensation tanks 201. The center of the three sets of support frames 101 is provided with a through hole 102 to accommodate the water outlet head 202. The front edge of the surface of the base 1 is provided with a pipe bracket 103. The upper end of the pipe bracket 103 is provided with three sets of positioning slots 104 corresponding to the water outlet elbow pipe 404. The support frame 101 provides stable support for the flow stabilization compensation tank 201, ensuring its fixed position and stable operation. The through hole 102 facilitates the passage of the water outlet head 202. The pipe bracket 103 and the positioning slots 104 provide support and positioning for the water outlet elbow pipe 404.

[0030] During operation, the operator starts the device via the frequency converter control cabinet 6. After startup, the two sets of solenoid valves 304 on the main inlet pipe 301 of the water inlet mechanism 3 automatically open and close under the control of the frequency converter control cabinet 6 according to the municipal water supply flow, rationally distributing the water flow to the three diversion pipes 303, which then flow into the corresponding flow stabilization compensation tanks 201. The operator monitors the pressure changes in the tanks in real time by observing the pressure gauges 205 at the bottom of the three flow stabilization compensation tanks 201. When the municipal water supply flow suddenly increases or decreases, the multiple flow stabilization compensation tanks 201 provide a larger total buffer volume, effectively absorbing or supplementing the water flow impact, ensuring that the water flow out of each tank tends to be stable. The stabilized water flow then flows from each flow stabilization compensation tank 201. The water flows out from the lower outlet 202, through the inlet elbow pipe 403 and the series connector 402 into the corresponding booster pump 401. The three booster pumps 401 operate under the intelligent scheduling of the frequency converter control cabinet 6. The frequency converter control cabinet 6 can determine the number of booster pumps 401 to start and adjust the speed of each pump. When there is a small flow demand, only one or two booster pumps 401 may be started to operate at low frequency, saving energy and reducing consumption. During peak water use, the three booster pumps 401 can operate at high frequency at the same time to ensure stable and sufficient outlet pressure. The water flow after being pressurized by each booster pump 401 flows through the outlet elbow pipe 404, through the second check valve 503, into the three sets of manifolds 502, and finally converges at the outlet main pipe 501 and is delivered to the community water supply network.

[0031] Its working principle is as follows: municipal water supply enters the main inlet pipe 301 through the inlet connector 302. Two sets of solenoid valves 304 installed on the main inlet pipe 301 divide the main inlet pipe 301 into different areas. According to the municipal water supply flow rate, the opening and closing of the solenoid valves 304 are controlled to allow water to flow into different diversion pipes 303. When the municipal water supply flow rate is small, only the solenoid valve 304 on the side closest to the inlet connector 302 is opened, allowing water to flow into one diversion pipe 303 and then into the corresponding flow stabilization compensation tank 201. When the flow rate increases, the other set of solenoid valves 304 is opened, allowing water to flow into another diversion pipe 303 and the flow stabilization compensation tank 201. This diversion method can be adjusted according to the actual water flow. The system more precisely distributes water flow to different flow stabilization tanks 201. Water enters the three sets of flow stabilization tanks 201 through the inlet head 203. Inside the flow stabilization tanks 201, unstable fluctuations in water flow are buffered and regulated. When there is a possibility of vacuum formation in the tank, the vacuum suppressor 204 automatically works to prevent vacuum formation, ensuring stable pressure inside the flow stabilization tanks 201 and avoiding adverse effects on the operation of the device. At the same time, the pressure gauge 205 displays the pressure inside the flow stabilization tanks 201 in real time. After flow stabilization, the water flows out from the outlet head 202. The water flowing out from the outlet head 202 of the flow stabilization tanks 201 enters the three sets of booster pumps 401 through the inlet elbow pipe 403. The three sets of booster pumps 401 work simultaneously, and under the regulation of the frequency converter control cabinet 6, the operating frequency is automatically adjusted according to the set water supply pressure parameters.

[0032] Its beneficial effects are significant. This application utilizes the three sets of flow stabilization compensation tanks 201 in the flow stabilization mechanism 2 to flexibly adjust their working state according to the actual water flow conditions. When the municipal water supply flow is low, only a portion of the flow stabilization compensation tanks 201 can be used for flow stabilization. When the flow suddenly increases, all three sets of flow stabilization compensation tanks 201 work simultaneously to enhance the flow stabilization capability and promptly regulate the water flow, preventing instability in the water flow entering the booster component 4. This solves the problems of insufficient water supply pressure and fluctuating water flow in the community, meeting the stable and sufficient water demand of the residents. Furthermore, through the three sets of diversion pipes 303 in the water inlet mechanism 3, combined with two sets of solenoid valves 304, the flow can be adjusted according to different water flow conditions via electric... The opening and closing of the solenoid valve 304 flexibly controls the water flow into different branch pipes 303, and then distributes it to different flow stabilization compensation tanks 201. This precise water flow distribution and regulation method can better adapt to various changes in municipal water supply flow and improve the device's adaptability to different water supply conditions. The design of three sets of booster pumps 401 working simultaneously in the booster component 4 greatly enhances the boosting capacity compared to single or dual pump boosting methods. Under the regulation of the frequency converter control cabinet 6, the three sets of booster pumps 401 can automatically adjust their operating frequency according to the water demand of the community, better meet the water supply pressure requirements of the community at different times and with different water volumes, and ensure the stability and reliability of the community's water supply.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-pump type negative pressure-free water supply device, comprising a base (1); characterized in that, It also includes a flow stabilizing mechanism (2), a water inlet mechanism (3), a pressurizing component (4), a water outlet mechanism (5), and a frequency converter control cabinet (6); the rear end of the base (1) is provided with a water inlet mechanism (3) for connecting to the municipal water supply pipeline, and the bottom of the water inlet mechanism (3) is provided with a flow stabilizing mechanism (2) for adjusting the flow according to the flow rate. The flow stabilizing mechanism (2) includes three sets of flow stabilizing compensation tanks (201). The front end of the base (1) is provided with a water outlet mechanism (5) for connecting to the community water supply pipeline. The water outlet mechanism (5) and the flow stabilizing mechanism (2) are provided with a pressurizing component (4) for adjusting the water supply pressure. The front end of the surface of the base (1) is provided with a frequency converter control cabinet (6) for frequency conversion adjustment.

2. The multi-pump type negative pressure-free water supply device according to claim 1, characterized in that, The water inlet mechanism (3) includes a water inlet main pipe (301), one end of which is provided with a water inlet connector (302), the lower end of which is provided with a three-part flow pipe (303), the outer end of which is provided with a three-part flow pipe (303), the upper end of which is evenly arranged along the outer end of the water inlet main pipe (301), and two sets of solenoid valves (304) are installed at intervals on the pipe body of the water inlet main pipe (301). The three-part flow pipe (303) is separated by the two sets of solenoid valves (304).

3. The multi-pump type negative pressure-free water supply device according to claim 2, characterized in that, Each of the three sets of flow stabilizing compensation tanks (201) has an inlet head (203) on one side of its upper end, which is connected to the three sets of flow distribution pipes (303). Each of the three sets of flow stabilizing compensation tanks (201) has an outlet head (202) at the center of its lower end.

4. The multi-pump type negative pressure-free water supply device according to claim 3, characterized in that, Each of the three sets of flow stabilization compensation tanks (201) is equipped with a vacuum suppressor (204) on the other side of the upper end, and a pressure gauge (205) corresponding to the flow stabilization compensation tank (201) is installed at the bottom of the rear end of each of the three sets of flow stabilization compensation tanks (201).

5. The multi-pump type negative pressure-free water supply device according to claim 1, characterized in that, The water outlet mechanism (5) includes a water outlet main pipe (501), and three sets of manifolds (502) are provided at the lower outer end of the water outlet main pipe (501). The three sets of manifolds (502) are evenly arranged along the lower outer end of the water outlet main pipe (501), and a second check valve (503) is installed at the lower end of each of the three sets of manifolds (502).

6. A multi-pump type negative pressure-free water supply device according to claim 3, characterized in that, The booster assembly (4) includes three booster pumps (401). Each of the three booster pumps (401) has a series connector (402) at its rear end. A series pipe (405) is provided between the three series connectors (402). Each of the three series connectors (402) has an inlet elbow pipe (403) connected to the outlet head (202) at its rear end. A first check valve (406) is installed between the last two series connectors (402) and the corresponding inlet elbow pipe (403). Each of the three booster pumps (401) has an outlet elbow pipe (404) connected to the second check valve (503) at its front end.

7. A multi-pump type negative pressure-free water supply device according to claim 1, characterized in that, Three sets of support frames (101) are evenly provided at the rear edge of the surface of the base (1). The three sets of support frames (101) are located below the three sets of flow stabilization compensation tanks (201). The center of the three sets of support frames (101) is provided with a through hole (102) to accommodate the water outlet head (202). The front edge of the surface of the base (1) is provided with a pipe bracket (103). The upper end of the pipe bracket (103) is provided with three sets of positioning grooves (104) corresponding to the water outlet elbow pipe (404).

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