Non-negative-pressure constant-pressure variable-frequency water supply equipment

Abstract

The utility model belongs to the technical field of water supply equipment, and particularly relates to non-negative-pressure constant-pressure variable-frequency water supply equipment. Comprising an equipment unit and a control box, the control box is electrically connected with the equipment unit, the equipment unit comprises a steady flow tank, the steady flow tank is communicated with a water inlet pipeline, a first pressure gauge is arranged on the steady flow tank, the steady flow tank is connected with a water supply pump set through a first connecting pipeline, and the water supply pump set is connected with a water outlet pipeline; the water outlet pipeline is connected with a second pressure gauge and an outlet energy storage component, and when a small amount of water is used, the outlet energy storage component can release the stored water and is used for maintaining the pressure of the water outlet pipeline to be stable; and the outlet energy storage component is arranged, and when a small amount of water is used, the outlet energy storage component can release stored water and is used for maintaining the pressure of the water outlet pipeline to be stable, frequent starting and stopping of the water supply pump set are reduced, and the effects of stabilizing the pressure and saving energy can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water supply equipment, and particularly relates to a non-negative pressure constant pressure variable frequency water supply equipment. Background Technique

[0002] The non-negative pressure variable frequency water supply equipment has multiple functions in municipal water use. It not only improves the efficiency and reliability of the water supply system, but also helps with energy conservation and emission reduction, ensuring the stability and safety of water supply.

[0003] Chinese patent with publication number CN213952380U discloses a green box-type non-negative pressure water supply device, including a domestic water tank and a channel steel foundation. One side of the top of the domestic water tank is communicated with a water inlet pipe. The end of the second water delivery pipe far from the water inlet pipe is communicated with a non-negative pressure steady flow tank. A water pump is fixedly connected to the top of the channel steel foundation. The end of the water pump far from the non-negative pressure steady flow tank is communicated with a water outlet pipe. When the device is in use, the pump unit equipment needs to be frequently started and stopped for water supply, which affects the stable pressure and energy conservation of the overall device. Content of the Utility Model

[0004] The purpose of the utility model is to provide a non-negative pressure constant pressure variable frequency water supply equipment for the above-mentioned existing technical problems. An outlet energy storage component is provided. When there is a small amount of water use, the outlet energy storage component can release the stored water to maintain the pressure stability of the water outlet pipeline, reduce the frequent start and stop of the water supply pump group, and can play a role in stabilizing pressure and saving energy.

[0005] In view of this, the utility model provides a non-negative pressure constant pressure variable frequency water supply equipment, including an equipment unit and a control box. The control box is electrically connected to the equipment unit. The equipment unit includes a steady flow tank. The steady flow tank is communicated with the water inlet pipeline and a first pressure gauge is arranged on the steady flow tank. The steady flow tank is connected to a water supply pump group through a first connecting pipeline. The water supply pump group is connected to the water outlet pipeline. The water outlet pipeline is connected with a second pressure gauge and an outlet energy storage component. When there is a small amount of water use, the outlet energy storage component can release the stored water to maintain the pressure stability of the water outlet pipeline.

[0006] In this technical solution, when municipal water enters the steady flow tank from the water inlet pipe, the steady flow tank plays the roles of storage, steady flow, and negative pressure suppression. The control box controls the water supply pump group to work for secondary pressurized water supply. When the second pressure gauge detects that the water outlet pressure reaches the set value, the output frequency of the frequency converter in the control box decreases, and the water pump speed in the water supply pump group slows down to keep the pipeline pressure stable until it enters the sleep state. A part of the water source enters the outlet energy storage component. When a small amount of water is needed, the outlet energy storage component releases the stored water source into the water outlet pipeline to maintain its pressure stability, reduces the frequent start and stop of the water supply pump group, and can play a role in stabilizing pressure and saving energy.

[0007] In the above technical solution, further, the outlet energy storage component includes an energy storage tank. Inside the energy storage tank, it is separated into a pneumatic chamber and a water storage chamber by a diaphragm. The pneumatic chamber is pre-filled with gas, and the energy storage tank is connected to the water outlet pipeline through a pipe.

[0008] In the above technical solution, further, the outlet energy storage component includes an energy storage tank. Inside the energy storage tank, there is an airbag. The inside of the airbag is the pneumatic chamber, and the space between the airbag and the energy storage tank is the water storage chamber. The energy storage tank is connected to the water outlet pipeline through a pipe.

[0009] In this technical solution, both the diaphragm and the airbag are made of rubber. The outlet energy storage component is connected to a pressure regulating device, which is also electrically connected to the control box. The pressure regulating device automatically adjusts the air pressure in the pneumatic chamber according to the change of the system pressure, so as to achieve the storage and release of water source in the water storage chamber. The pressure regulating device is a prior art, so it will not be elaborated here.

[0010] In the above technical solution, further, a vacuum suppressor and an inlet water energy storage component are connected to the surge tank. When the water flow in the inlet pipeline is insufficient, the inlet water energy storage component can release the stored water to maintain the pressure stability of the inlet pipeline and avoid generating negative pressure.

[0011] In this technical solution, the vacuum suppressor is a prior art, so it will not be elaborated here. The structure of the inlet water energy storage component is the same as that of the outlet energy storage component. When the municipal water supply is insufficient, the flow monitoring device on the inlet pipeline will send a signal, and the inlet water energy storage component releases the stored water source to balance the pressure difference and flow difference caused by the insufficient municipal water supply, and avoid generating negative pressure in the inlet pipeline.

[0012] In the above technical solution, further, a flow valve and a water purification structure are provided on the inlet pipeline, and the water purification structure can filter the passing water flow.

[0013] In the above technical solution, further, the water purification structure includes a lateral branch pipe obliquely arranged on the inlet pipeline. The end of the lateral branch pipe is threadedly connected with an end cover, and a water purification filter element is connected inside the lateral branch pipe by the end cover. The water purification filter element extends into the inlet pipeline, and the water purification filter element can filter the passing water flow.

[0014] In this technical solution, setting a water purification structure in the inlet pipeline of the non-negative pressure variable frequency water supply equipment can not only significantly improve the water quality, protect the equipment from damage, extend the service life, but also improve the safety and reliability of water supply.

[0015] In the above technical solution, further, a stop control valve is provided in front of the water purification structure on the inlet pipeline.

[0016] In this technical solution, when it is necessary to check or replace the filter element in the water purification structure, close the stop control valve and disassemble the filter element for inspection or replacement.

[0017] The beneficial effects of the present utility model are as follows:

[0018] 1. When municipal water enters the steady flow tank from the inlet pipe, the steady flow tank plays the roles of storage, steady flow, and negative pressure suppression. The control box controls the water supply pump group to work for secondary pressurized water supply. When the second pressure gauge detects that the outlet pressure reaches the set value, the output frequency of the frequency converter in the control box decreases, and the water pump speed in the water supply pump group slows down to maintain the pipeline pressure stable until it enters the sleep state. A part of the water source enters the outlet energy storage component. When a small amount of water is needed, the outlet energy storage component releases the stored water source into the outlet pipeline to maintain its pressure stable, reducing the frequent start and stop of the water supply pump group, and being able to play the roles of stabilizing pressure and saving energy;

[0019] 2. The structures of the inlet energy storage component and the outlet energy storage component are the same. When the municipal water supply is insufficient, the flow monitoring device on the inlet pipeline will send a signal, and the inlet energy storage component releases the stored water source to balance the pressure difference and flow difference generated due to the insufficient municipal water supply, avoiding the generation of negative pressure in the inlet pipeline.

[0020] 3. A water purification structure is arranged in the inlet pipeline of the non-negative pressure variable frequency water supply equipment, which can not only significantly improve the water quality, protect the equipment from damage, extend the service life, but also improve the safety and reliability of the water supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the top view of the present utility model;

[0022] Figure 2 is the side view of the present utility model;

[0023] Figure 3 is the structural schematic diagram of the outlet energy storage component in the first embodiment;

[0024] Figure 4 is the structural schematic diagram of the outlet energy storage component in the second embodiment.

[0025] Figure 5 is Figure 2 the partial enlarged view at A in

[0026] The markings in the figure are represented as:

[0027] 1. Control box; 2. Steady flow tank; 3. Inlet pipeline; 4. First pressure gauge; 5. First connecting pipeline; 6. Water supply pump group; 7. Outlet pipeline; 8. Second pressure gauge; 9. Outlet energy storage component; 10. Energy storage tank; 11. Diaphragm; 12. Pneumatic chamber; 13. Water storage chamber; 14. Airbag; 15. Vacuum suppressor; 16. Inlet energy storage component; 17. Flow valve; 18. Lateral branch pipe; 19. End cover; 20. Water purification filter element; 21. Stop control valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The technical solutions in the embodiments of the present application will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application belong to the scope of protection of the present application.

[0029] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments of the present application. For the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0030] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such used data may be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same category and do not limit the number of objects. For example, the first object may be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the related objects before and after.

[0031] It should be noted that in the description of the present application, the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0032] It should be noted that in this application, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including such element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of this application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0033] As Figures 1 - 4 shown, this embodiment provides a non-negative pressure constant pressure variable frequency water supply device, including an equipment unit and a control box 1. The control box 1 is electrically connected to the equipment unit. The equipment unit includes a steady flow tank 2. The steady flow tank 2 is connected to the water inlet pipeline 3, and a first pressure gauge 4 is arranged on the steady flow tank 2. The steady flow tank 2 is connected to a water supply pump group 6 through a first connection pipeline 5. The water supply pump group 6 is connected to a water outlet pipeline 7. A second pressure gauge 8 and an outlet energy storage component 9 are connected to the water outlet pipeline 7. When a small amount of water is used, the outlet energy storage component 9 can release the stored water to maintain the pressure stability of the water outlet pipeline 7.

[0034] When municipal water enters the steady flow tank 2 from the water inlet pipe, the steady flow tank 2 plays the roles of storing, stabilizing the flow, and suppressing negative pressure. The control box 1 controls the water supply pump group 6 to work for secondary pressurized water supply. When the second pressure gauge 8 detects that the water outlet pressure reaches the set value, the output frequency of the frequency converter in the control box 1 decreases, and the water pump speed in the water supply pump group 6 slows down to maintain the pipeline pressure stability until it enters the sleep state. A part of the water source enters the outlet energy storage component 9. When a small amount of water is needed, the outlet energy storage component 9 releases the stored water source into the water outlet pipeline 7 to maintain its pressure stability, reducing the frequent start and stop of the water supply pump group 6, and being able to play the roles of stabilizing pressure and saving energy.

[0035] As Figure 3 shown, the outlet energy storage component 9 includes an energy storage tank 10. The inside of the energy storage tank 10 is separated into a gas pressure chamber 12 and a water storage chamber 13 by a diaphragm 11. The gas pressure chamber 12 is pre-filled with gas. The energy storage tank 10 is connected to the water outlet pipeline 7 through a pipeline.

[0036] As Figure 4As shown, the outlet energy storage component 9 includes an energy storage tank 10. An airbag 14 is arranged inside the energy storage tank 10. An air pressure chamber 12 is inside the airbag 14, and a water storage chamber 13 is between the airbag 14 and the energy storage tank 10. The energy storage tank 10 is connected to the water outlet pipeline 7 through a pipeline.

[0037] Both the diaphragm 11 and the airbag 14 are made of rubber. The outlet energy storage component 9 is connected with a pressure regulating device, which is also electrically connected to the control box 1. The pressure regulating device automatically adjusts the air pressure in the air pressure chamber 12 according to the change of the system pressure, so as to achieve the storage and release of water source in the water storage chamber 13. The pressure regulating device is a prior art, so it will not be elaborated here.

[0038] As Figure 1 and Figure 2 shown, a vacuum suppressor 15 and an inlet water energy storage component 16 are connected to the steady flow tank 2. When the water flow in the inlet pipeline 3 is insufficient, the inlet water energy storage component 16 can release the stored water to maintain the pressure stability of the inlet pipeline and avoid generating negative pressure.

[0039] The vacuum suppressor 15 is a prior art, so it will not be elaborated here. The structure of the inlet water energy storage component 16 is the same as that of the outlet energy storage component 9. When the municipal water supply is insufficient, the flow monitoring device on the inlet pipeline 3 will send a signal, and the inlet water energy storage component 16 releases the stored water source to balance the pressure difference and flow difference caused by the insufficient municipal water supply, avoiding generating negative pressure in the inlet pipeline 3.

[0040] As Figure 2 and Figure 5 shown, a flow valve 17 and a water purification structure are arranged on the inlet pipeline 3, and the water purification structure can filter the passing water flow.

[0041] The water purification structure includes a lateral branch pipe 18 obliquely arranged on the inlet pipeline 3. The end of the lateral branch pipe 18 is threadedly connected with an end cover 19. The end cover 19 is connected with a water purification filter element 20 inside the lateral branch pipe 18. The water purification filter element 20 extends into the inlet pipeline, and the water purification filter element 20 can filter the passing water flow.

[0042] Setting a water purification structure in the inlet pipeline 3 of the non-negative pressure variable frequency water supply equipment can not only significantly improve the water quality, protect the equipment from damage and extend the service life, but also improve the safety and reliability of water supply.

[0043] A stop control valve 21 is arranged in front of the water purification structure on the inlet pipeline 3.

[0044] When it is necessary to check or replace the filter element in the water purification structure, close the stop control valve 21 and disassemble the filter element for inspection or replacement.

[0045] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative rather than restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A non-negative pressure constant pressure variable frequency water supply device, characterized in that, It includes an equipment unit and a control box (1). The control box (1) is electrically connected to the equipment unit. The equipment unit includes a steady flow tank (2). The steady flow tank (2) is connected to the water inlet pipeline (3), and a first pressure gauge (4) is arranged on the steady flow tank (2). The steady flow tank (2) is connected to a water supply pump group (6) through a first connecting pipeline (5). The water supply pump group (6) is connected to a water outlet pipeline (7). The water outlet pipeline (7) is connected to a second pressure gauge (8) and an outlet energy storage component (9). When the water consumption is small, the outlet energy storage component (9) can release the stored water to maintain the pressure stability of the water outlet pipeline (7).

2. The non-negative pressure constant pressure variable frequency water supply equipment according to claim 1, characterized in that, The outlet energy storage component (9) includes an energy storage tank (10). The interior of the energy storage tank (10) is separated into a gas pressure chamber (12) and a water storage chamber (13) by a diaphragm (11). The gas pressure chamber (12) is pre-filled with gas. The energy storage tank (10) is connected to the water outlet pipeline (7) through a pipeline.

3. The non-negative pressure constant pressure variable frequency water supply equipment according to claim 1, characterized in that, The outlet energy storage component (9) includes an energy storage tank (10). An airbag (14) is arranged inside the energy storage tank (10). The interior of the airbag (14) is the gas pressure chamber (12). The space between the airbag (14) and the energy storage tank (10) is the water storage chamber (13). The energy storage tank (10) is connected to the water outlet pipeline (7) through a pipeline.

4. A non-negative pressure constant pressure variable frequency water supply device according to any one of claims 1-3, characterized in that, A vacuum suppressor (15) and an inlet water energy storage component (16) are connected to the steady flow tank (2). When the water flow in the water inlet pipeline (3) is insufficient, the inlet water energy storage component (16) can release the stored water to maintain the pressure stability of the water inlet pipeline and avoid generating negative pressure.

5. The non-negative pressure constant pressure variable frequency water supply equipment according to claim 1, characterized in that, The water inlet pipeline (3) is provided with a flow valve (17) and a water purification structure, and the water purification structure can filter the passing water flow.

6. The non-negative pressure constant pressure variable frequency water supply equipment according to claim 5, characterized in that, The water purification structure includes a lateral branch pipe (18) inclined on the water inlet pipeline (3). The end of the lateral branch pipe (18) is threadedly connected to an end cap (19). A water purification filter element (20) is connected inside the lateral branch pipe (18) by the end cap (19). The water purification filter element (20) extends into the water inlet pipeline, and the water purification filter element (20) can filter the passing water flow.

7. An unfired negative pressure constant pressure variable frequency water supply device according to claim 6, characterized in that, A stop control valve (21) is arranged on the water inlet pipeline (3) in front of the water purification structure.

Images