Constant-pressure water supply device for user side

Abstract

The utility model relates to the field of water pumps, in particular to a user-side constant-pressure water supply device, which comprises a pressurizing tank, a water pump, a water pump, a water pump, a water pump, a water pump, a water pump, a water pump, a water pump, a water pump, a water pump, a water pump and a water pump, and is characterized in that the bottom of the pressurizing tank is provided with a pressurizing valve, and the inner wall of the pressurizing valve is made of high-temperature-resistant materials, a heating part and a temperature-control opening are arranged on the bottom wall of the pressurizing valve; and the controller is in communication connection with the pressurizing tank, the heating part and the Internet of Things system. The controller is in communication connection with the pressurizing tank and the Internet of Things system, pressurizing of a user end and water yield matching of a water supply end / a sewage plant can be achieved, the inner wall of the pressurizing valve is made of high-temperature-resistant materials, the heating part is arranged at the bottom end of the interior of the pressurizing valve, and the temperature control opening is formed in the bottom wall of the pressurizing valve. The pressure increasing valve can sterilize the bacteria carried in the water flow at high temperature, so that the water flow flowing out of the user side is more sanitary.

Description

Technical Field

[0001] This utility model relates to the field of water pumps, and in particular to a user-end constant pressure water supply device. Background Technology

[0002] Constant pressure water supply at the user end refers to maintaining a stable water pressure in the user's water supply network through automatic control technology to meet the user's water demand.

[0003] Currently, existing constant pressure water supply devices at the user end cannot coordinate with the booster valve at the water supply end for control, thus making it impossible to allocate water supply according to the user's water demand and the wastewater treatment plant's water production.

[0004] Existing constant pressure water supply devices at the user end are not yet able to sterilize bacteria carried in the water flow at high temperatures.

[0005] For example, the utility model patent with application number 201620008988.0 discloses a variable frequency constant pressure water pump, but it does not have communication function and heating and sterilization function. Utility Model Content

[0006] Therefore, this utility model provides a user-end constant pressure water supply device. Through a controller, it communicates with a booster tank and an Internet of Things system, which can realize the boosting of the user end and the matching of the water production of the water supply end / sewage treatment plant. By using a high-temperature resistant material for the inner wall of the booster valve, a heating part is provided at the bottom of the interior, and a temperature control opening is provided at the bottom wall, the booster valve can sterilize the bacteria carried in the water flow at high temperature, so that the water flowing out of the user end is more hygienic.

[0007] To achieve the above objectives, this utility model proposes a user-end constant pressure water supply device, comprising:

[0008] The pressure tank has a pressure valve at the bottom. The inner wall of the pressure valve is made of high-temperature resistant material, the bottom of the interior is equipped with a heating element, and the bottom wall is equipped with a temperature control opening. The temperature control opening is open at high temperatures and closed at low temperatures.

[0009] The controller is communicatively connected to the pressurization tank, the heating unit, and the Internet of Things (IoT) system.

[0010] Furthermore, the temperature control opening is provided with a bending tab and a shrinking tab;

[0011] One side of the curved piece contacts and seals the temperature control opening, while the other side is fixed to the shrink piece;

[0012] The coefficient of thermal expansion of the curved sheet is greater than that of the contracted sheet;

[0013] When the heating chamber is at a high temperature, the expansion degree of the bending piece is greater than that of the shrinking piece, and the bending piece is driven by the shrinking piece to bend and open the temperature control opening.

[0014] Furthermore, the horizontal cross-sectional area of ​​the curved sheet is greater than the horizontal cross-sectional area of ​​the temperature control opening, and also greater than the horizontal cross-sectional area of ​​the shrink sheet.

[0015] Furthermore, the user-end constant pressure water supply device also includes a connector, which passes through one end of the curved plate and the contraction plate and is fixed to the bottom wall of the pressure boosting valve on the side of the temperature control opening.

[0016] In the above scheme, when the temperature at the bottom of the booster valve reaches the set high temperature, the bending and contraction plates expand due to heat, automatically opening the temperature control opening; when the temperature at the bottom of the booster valve does not reach the set high temperature, the bending and contraction plates reset and automatically close the temperature control opening, so as to ensure that water will not flow out when the bottom of the booster valve does not reach the high temperature and effective high-temperature sterilization is not carried out.

[0017] Furthermore, the heating element is a heating wire arranged around the inner wall of the bottom end of the pressurization tank.

[0018] Furthermore, the heating element consists of multiple semiconductor heating and cooling plates that are attached to the inner wall of the bottom end of the pressurization tank.

[0019] Furthermore, the pressure boosting valve is vertically installed at the bottom of the pressure boosting tank and has a water inlet that communicates with the outside.

[0020] The bottom of the pressure boosting valve is connected to the drain chamber;

[0021] The drainage chamber is a horizontally arranged cylindrical structure, with a variable frequency water pump and a drain outlet respectively connected to the bottom surfaces of the two cylinders.

[0022] Furthermore, the booster valve is equipped with a pressure sensor, a flow sensor, and a temperature sensor that are communicatively connected to the controller.

[0023] Furthermore, the controller is also communicatively connected to the variable frequency water pump;

[0024] The controller has a control panel for receiving operating parameter commands from the variable frequency water pump, the booster tank, and the heating unit.

[0025] Furthermore, the control panel includes a display screen and input buttons.

[0026] The above solution allows users to easily set the boosting pressure and speed of the water flow from the water supply device, and the water supply device can also communicate with the water supply end / sewage treatment plant.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0028] 1. Through the controller, communication connection with the pressurization tank and the Internet of Things system can be realized to match the pressurization at the user end with the water production at the water supply end / sewage treatment plant. By using a high-temperature resistant material for the inner wall of the pressurization valve, a heating element at the bottom of the interior, and a temperature control opening on the bottom wall, the pressurization valve can sterilize the bacteria carried in the water flow at high temperature, so that the water flowing out of the user end is more hygienic.

[0029] 2. When the temperature at the bottom of the booster valve reaches the set high temperature, the bending and contraction plates expand due to heat, automatically opening the temperature control opening; when the temperature at the bottom of the booster valve does not reach the set high temperature, the bending and contraction plates reset and automatically close the temperature control opening, so as to ensure that water will not flow out when the bottom of the booster valve does not reach the high temperature and effective high-temperature sterilization is not carried out.

[0030] 3. It allows users to easily set the boosting pressure and speed of the water flow by the water supply device, and the water supply device can also communicate with the water supply end / sewage treatment plant. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the user-end constant pressure water supply device according to an embodiment of the present utility model;

[0032] Figure 2 This is a cross-sectional schematic diagram of the temperature control opening of the booster valve of the user-end constant pressure water supply device according to an embodiment of this utility model.

[0033] In the diagram: 1. Pressure tank; 2. Pressure valve; 21. Water inlet; 22. Temperature control opening; 221. Connector; 222. Shrink flap; 223. Bending flap; 3. Controller; 31. Input button; 32. Display screen; 33. Connecting pipeline; 4. Variable frequency water pump; 5. Drainage chamber; 51. Drain outlet. Detailed Implementation

[0034] To make the objectives and advantages of this utility model clearer, the utility model will be further described below with reference to the embodiments; it should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0035] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0036] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0037] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] like Figure 1 and Figure 2 As shown, this utility model provides a user-end constant pressure water supply device. Through the controller 3, it communicates with the booster tank 1 and the Internet of Things system, which can realize the boosting of the user end and the matching of the water production of the water supply end / sewage treatment plant. By using a high-temperature resistant material for the inner wall of the booster valve 2, a heating part is provided at the bottom of the interior, and a temperature control opening 22 is provided at the bottom wall, the booster valve 2 can sterilize the bacteria carried in the water flow at high temperature, so that the water flowing out of the user end is more hygienic.

[0039] in, Figure 1 This is a schematic diagram of the user-end constant pressure water supply device according to an embodiment of the present utility model; Figure 2 This is a schematic cross-sectional view of the temperature control opening 22 of the booster valve 2 of the constant pressure water supply device at the user end in an embodiment of this utility model.

[0040] like Figure 1 and Figure 2 As shown, this embodiment proposes a user-end constant pressure water supply device, including: a pressure boosting tank 1, which has a pressure boosting valve 2 at the bottom. The inner wall of the pressure boosting valve 2 is made of high temperature resistant material, and a heating part is provided at the bottom of the interior. The bottom wall is provided with a temperature control opening 22, which is opened at high temperature and closed at low temperature; and a controller 3, which is communicatively connected to the pressure boosting tank 1, the heating part and the Internet of Things system.

[0041] Specifically, the booster tank 1 contains an air bladder. When the tap water pressure is higher than the set pressure, the air bladder contracts to store water, thereby reducing the water pressure; when the tap water pressure is lower than the set pressure, the air bladder releases the stored water, thereby increasing the water pressure. Therefore, the booster tank 1 achieves constant pressure water supply at the user end.

[0042] In one embodiment of this invention, the temperature control opening 22 is provided with a bending plate 223 and a shrinking plate 222; one side of the bending plate 223 contacts and seals the temperature control opening 22, and the other side is fixed to the shrinking plate 222; the coefficient of thermal expansion of the bending plate 223 is greater than the coefficient of thermal expansion of the shrinking plate 222; when the heating chamber is in a high temperature state, the degree of expansion of the bending plate 223 is greater than the degree of expansion of the shrinking plate 222, and the bending plate 223 is driven by the shrinking plate 222 to bend and open the temperature control opening 22.

[0043] It should be noted that the high temperature is preferably 56°C, in order to effectively kill most viruses and bacteria.

[0044] Specifically, the coefficient of thermal expansion (CTE) is a physical quantity that measures the degree of change in the dimensions (length, area, volume) of a material when the temperature changes. It represents the ratio of the change in material size per unit temperature change to the original size. For the SUS347 stainless steel bent sheet 223, the preferred coefficient of thermal expansion is 1.65 × 10⁻⁶. -5 (1 / ℃), for the 316 stainless steel shrink sheet 222, its coefficient of thermal expansion is preferably 1.1×10⁻⁶. -5 (1 / ℃). Therefore, the thermal expansion of the bending sheet 223 can be greater than that of the shrink sheet 222.

[0045] Therefore, when the internal bottom of the pressure boosting valve 2 exceeds 50°C for high-temperature sterilization, both the curved plate 223 and the contraction plate 222 located on the bottom side of the temperature control opening 22 expand due to heat, or only the curved plate 223 expands due to heat, so that the expansion degree of the curved plate 223 is greater than that of the contraction plate 222. During the elongation process, the curved plate 223 is fixed and tightened by the contraction plate 222, thereby generating a bend away from the temperature control opening 22 to open the temperature control opening 22. When the internal bottom of the pressure boosting valve 2 is below 50°C, both the curved plate 223 and the contraction plate 222 contract to a position similar to... Figure 2 The original state is shown to block the temperature control opening 22, so that tap water that has not undergone sufficient high-temperature sterilization cannot flow out of the pressure boosting valve 2.

[0046] In another embodiment of this invention, an alternative is that the temperature control opening 22 is provided only with a bending plate 223, which is welded from metal sheets with different coefficients of thermal expansion, causing it to bend at temperatures within the shavings combustion temperature range. Specifically, one end of the bending plate 223 is fixed to the bottom wall near the temperature control opening 22 by rivets. When the internal temperature of the filter element is within the shavings combustion temperature range for a certain period, different areas of the valve experience different rates and degrees of thermal expansion, easily leading to stress deformation and thus opening the opening. Therefore, the opening and closing of the opening can be achieved simply by changing the temperature of the valve.

[0047] Furthermore, the horizontal cross-sectional area of ​​the curved piece 223 is greater than the horizontal cross-sectional area of ​​the temperature control opening 22, and also greater than the horizontal cross-sectional area of ​​the shrink piece 222.

[0048] Preferably, the diameter / horizontal cross-sectional area of ​​the temperature control opening 22 is 21.3 mm, the horizontal cross-sectional area of ​​the bending piece 223 is 26.8 mm, and the horizontal cross-sectional area of ​​the shrinking piece 222 is 20 mm.

[0049] Furthermore, the user-end constant pressure water supply device also includes a connector 221, which passes through one end of the curved plate 223 and the contraction plate 222, and is fixed to the bottom wall of the pressure boosting valve 2 on one side of the temperature control opening 22.

[0050] Preferably, the connector 221 is a rivet or a bolt.

[0051] In the above scheme, when the temperature at the bottom of the booster valve 2 reaches the set high temperature, the bending plate 223 and the shrink plate 222 expand due to heat and automatically open the temperature control opening 22; when the temperature at the bottom of the booster valve 2 does not reach the set high temperature, the bending plate 223 and the shrink plate 222 reset and automatically close the temperature control opening 22, so as to ensure that water will not flow out when the bottom of the booster valve 2 does not reach the high temperature and effective high-temperature sterilization is not carried out.

[0052] In one embodiment of this invention, the heating element is a heating wire arranged around the inner wall of the bottom end of the pressurization tank 1. Specifically, the heating wire is a water-heating spiral electric heating tube.

[0053] In another embodiment of this invention, the heating element comprises multiple semiconductor heating elements attached to the inner wall of the bottom of the pressurization tank 1. These semiconductor heating elements are a type of heat pump. When direct current passes through a thermocouple composed of two different semiconductor materials connected in series, heat can be absorbed and released at the two ends of the thermocouple, respectively. Therefore, the semiconductor heating elements can both cool and heat. While their cooling efficiency is generally low, their heating efficiency is very high, always greater than 1. Thus, the pressurization valve 2 can be quickly closed using these semiconductor heating elements.

[0054] Furthermore, the pressure boosting valve 2 is vertically positioned at the bottom of the pressure boosting tank 1 and has an inlet 21 communicating with the outside. The bottom of the pressure boosting valve 2 is connected to the drain chamber 5. The drain chamber 5 is a horizontally positioned cylindrical structure, with the variable frequency water pump 4 and the drain outlet 51 respectively connected to its two bottom surfaces. The variable frequency water pump 4 is used to accelerate and pressurize the water flow so that the low-pressure water flow meets the constant pressure requirement.

[0055] Furthermore, the booster valve 2 is equipped with a pressure sensor, a flow sensor, and a temperature sensor that are communicatively connected to the controller 3.

[0056] Furthermore, the controller 3 is also communicatively connected to the variable frequency water pump 4; the controller 3 has a control panel for receiving operating parameter instructions from the variable frequency water pump 4, the booster tank 1, and the heating unit.

[0057] Furthermore, the control panel has a display screen 32 and input buttons 31.

[0058] Specifically, see Figure 1 The controller 3 communicates with the heating element and sensor inside the pressure boosting valve 2 via the connecting pipe 33.

[0059] Specifically, the display screen 32 can display the water volume and water pressure data of the water supply end connected to the booster valve 2 stored on the Internet of Things system, as well as the historical working data of the booster valve 2 and the variable frequency water pump 4 stored in the controller 3.

[0060] Specifically, the user-end constant pressure water supply device and IoT system include a sensing layer, a transmission layer, and an application layer. The sensing layer comprises a pressure sensor, a flow sensor, a temperature sensor, and a controller 3. Pressure and flow parameters of the booster valve 2 are collected using sensing technology to achieve closed-loop control of the internal pressure and flow of the booster valve 2, stabilizing it at the pressure and flow parameters input by the user through the controller 3. Temperature parameters at the bottom of the booster valve 2 are also collected using sensing technology to achieve closed-loop control of the internal temperature of the booster valve 2. The pressure, flow, and temperature parameters are uploaded to the application layer via the transmission layer. The application layer performs data analysis and processing to make decisions on controlling the water production at the water supply end / sewage treatment plant, ensuring that the water production at the water supply end matches the water supply at the user end after pressurization and acceleration. Therefore, the sensing layer is the foundation for realizing monitoring and coordinated control between the user end and the water supply end.

[0061] Specifically, the controller 3 includes a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), etc. The general-purpose processor can be a microprocessor or any conventional processor. The logical judgments performed by the controller 3 can be executed by a hardware processor or by a combination of hardware and software modules within the processor. The controller 3 also includes read-only memory (ROM) and random access memory (RAM), which can be built into the central processing unit, the general-purpose processor, or the DSP.

[0062] The transport layer comprises LoRa communication nodes, LoRa gateways, and an NB-IoT network architecture. The LoRa gateways and LoRa communication nodes are connected in a star topology, while the NB-IoT network architecture is responsible for uploading data to the IoT system. The transport layer serves as the communication link between the perception layer and the application layer, playing a crucial role in data uploading and control command issuance.

[0063] Specifically, the NB-IoT network architecture includes terminals, a wireless network side, a core network side, and an application server. Terminal devices communicate with base stations via the air interface. The wireless network side processes the air interface access and establishes a connection with the core network for uplink and downlink data forwarding. The core network handles data interaction with terminal devices and sends relevant service data to the IoT system. The IoT system mainly consists of a Home Location Register (HLR) and a Location Control and Charging Rules Function (PCRF). The application server is the data aggregation point of the IoT system.

[0064] The LoRa communication nodes and the LoRa gateway constitute a LoRa network architecture, which also includes a network server and an application server. The LoRa gateway collects data from the LoRa communication nodes and uploads the information to the network server. The network server receives the data, analyzes and processes it, and sends the processing results to the application server. The application server generates feedback information and sends it back to the network server.

[0065] The application layer includes an Internet of Things (IoT) system, an application server, a database, and user terminals. The IoT system is a cloud platform system. The application server analyzes and processes the data collected by the perception layer and stores it in the database, dynamically displaying it to users in the form of data charts or curves. Simultaneously, it sends control decision results to the transmission layer to remotely monitor the booster valves at the water supply end and the constant pressure water supply devices at the user end, automatically controlling the water production at the water supply end / sewage treatment plant, thus achieving modern management of the water supply system.

[0066] The above solution allows users to easily set the boosting pressure and speed of the water flow from the water supply device, and the water supply device can also communicate with the water supply end / sewage treatment plant.

[0067] It is understandable that, through the controller 3, which communicates with the booster tank 1, the heating element, and the IoT system, the boosting at the user end and the water production at the water supply end / sewage treatment plant can be matched. The booster valve 2, with its high-temperature resistant inner wall, heating element at its bottom, and temperature-controlled opening 22, can sterilize bacteria carried in the water flow at high temperatures, making the water flowing from the user end more hygienic. When the temperature at the bottom of the booster valve 2 reaches the set high temperature, the bending plate 223 and the contraction plate 222 expand due to heat, automatically opening the temperature-controlled opening 22; when the temperature at the bottom of the booster valve 2 does not reach the set high temperature, the bending plate 223 and the contraction plate 222 reset and automatically close the temperature-controlled opening 22. This allows users to easily set the boosting pressure and speed of the water flow from the water supply device, and the water supply device can also communicate with the water supply end / sewage treatment plant.

[0068] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

[0069] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A user-end constant pressure water supply device, characterized in that, include: A pressure tank (1) has a pressure valve (2) at its bottom. The inner wall of the pressure valve (2) is made of high temperature resistant material, the bottom of the inside is provided with a heating part, and the bottom wall is provided with a temperature control opening (22). The temperature control opening (22) is opened at high temperature and closed at low temperature. The controller (3) is communicatively connected to the pressurization tank (1), the heating unit and the Internet of Things system.

2. The user-end constant pressure water supply device according to claim 1, characterized in that, The temperature control opening (22) is provided with a bending plate (223) and a shrink plate (222); One side of the curved piece (223) contacts and seals the temperature control opening (22), and the other side is fixed to the shrink piece (222); The coefficient of thermal expansion of the curved sheet (223) is greater than that of the contraction sheet (222); When the inside of the pressure boosting valve (2) is in a high-temperature state, the expansion degree of the bending plate (223) is greater than that of the contraction plate (222), and the bending plate (223) is driven by the contraction plate (222) to bend and open the temperature control opening (22).

3. The user-end constant pressure water supply device according to claim 2, characterized in that, The horizontal cross-sectional area of ​​the curved plate (223) is greater than the horizontal cross-sectional area of ​​the temperature control opening (22) and also greater than the horizontal cross-sectional area of ​​the shrink plate (222).

4. The user-end constant pressure water supply device according to claim 2, characterized in that, It also includes a connector (221) which passes through one end of the curved piece (223) and the contraction piece (222) and is fixed to the bottom wall of the pressure valve (2) on one side of the temperature control opening (22).

5. The user-end constant pressure water supply device according to claim 1, characterized in that, The heating element is a heating wire arranged around the inner wall of the bottom end of the pressurization tank (1).

6. The user-end constant pressure water supply device according to claim 1, characterized in that, The heating element consists of multiple semiconductor heating and cooling plates that are attached to the inner wall of the bottom end of the pressure tank (1).

7. The user-end constant pressure water supply device according to any one of claims 1 to 6, characterized in that, The pressure boosting valve (2) is vertically installed at the bottom of the pressure boosting tank (1) and has an inlet (21) that communicates with the outside. The bottom of the pressure boosting valve (2) is connected to the drain chamber (5); The drainage chamber (5) is a horizontally arranged cylindrical structure, with a variable frequency water pump (4) and a drain outlet (51) respectively connected to the bottom surfaces of the two cylinders.

8. The user-end constant pressure water supply device according to claim 7, characterized in that, The booster valve (2) is equipped with a pressure sensor, a flow sensor and a temperature sensor that are connected to the controller (3) in communication.

9. The user-end constant pressure water supply device according to claim 8, characterized in that, The controller (3) is also communicatively connected to the variable frequency water pump (4); The controller (3) has a control panel for receiving operating parameter instructions from the variable frequency water pump (4), the booster tank (1), and the heating unit.

10. The user-end constant pressure water supply device according to claim 9, characterized in that, The control panel includes a display screen (32) and input buttons (31).

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