Novel constant-pressure water supply equipment

Abstract

The utility model discloses intelligent constant-pressure water supply equipment which comprises a sealed water source tank, and a drainage pipe is arranged at the bottom of the sealed water source tank. The other end of the drainage pipe is fixedly connected with an angle valve, and the other end of the angle valve is fixedly connected with a transition pipe; the other end of the transition pipe is fixedly connected with a filter which is connected with the constant-pressure water supply assembly. According to the utility model, a plurality of groups of vertical multi-stage centrifugal pumps are introduced into the constant-pressure water supply assembly and are arranged between the water inlet main pipe and the water outlet main pipe in parallel, and the pressure loss in the water supply process can be effectively compensated by combining the adjusting effect of the surge tank, so that stable water supply pressure can be provided under different distances and different water demands; the filter is additionally arranged between the drainage pipe and the constant-pressure water supply assembly, impurities and particles in water are effectively removed, the quality of supplied water is improved, the safety and purity of water are guaranteed, the detachable design of the filter facilitates replacement and maintenance of a filter element, and the long-term stable filtering effect is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of water supply equipment technology, and in particular to a novel constant pressure water supply equipment. Background Technology

[0002] Water supply systems, as the cornerstone supporting national economic development and people's daily lives, play an indispensable role in all sectors. Given the specific water pressure requirements of different application scenarios, ensuring stable water pressure is a crucial aspect of water supply systems. If the water pressure cannot match the actual demand, it will directly and adversely affect production efficiency and people's quality of life. Therefore, constant pressure water supply equipment has emerged. This type of equipment adopts an advanced pneumatic water supply principle, utilizing the high-pressure air-water pressure mechanism inside a sealed tank to achieve efficient and stable water supply.

[0003] However, in practical applications, traditional constant pressure water supply equipment faces a series of challenges. On the one hand, because the distance between the sealed water supply tank and the end user is often far, the water encounters significant pressure loss as it flows through the long water supply network after undergoing secondary pressurization, resulting in unsatisfactory pressurization effects. On the other hand, existing equipment generally lacks efficient purification and filtration mechanisms during the water supply process, directly outputting untreated water, which undoubtedly poses a potential threat to the quality of the water supply and affects the safety and purity of the water used.

[0004] In conclusion, given the problems of pressure loss and insufficient water purification in existing constant pressure water supply equipment, it is particularly urgent and important to develop a new type of intelligent constant pressure water supply equipment to optimize water supply efficiency and improve water quality safety. Summary of the Invention

[0005] The purpose of this invention is to provide a new type of constant pressure water supply equipment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A novel constant pressure water supply device includes a sealed water source tank, wherein a support base is provided below the sealed water source tank; the top of the sealed water source tank is provided with a liquid inlet, wherein the liquid inlet is connected to an external water source through a pipeline; the bottom of the sealed water source tank is provided with a drain pipe, wherein one end of the drain pipe is connected to the inner cavity of the sealed water source tank, and the other end of the drain pipe is fixedly connected to an angle valve; one end of the angle valve is connected to the drain pipe, wherein the other end of the angle valve is fixedly connected to a transition pipe, and the other end of the transition pipe is fixedly connected to a filter; the filter... The filter has an inlet at the lower end of one side, which is connected to a transition pipe; an outlet at the upper end of the other side, which is connected to a constant pressure water supply component; the constant pressure water supply component includes a base plate, with an inlet main pipe and an outlet main pipe above the base plate, and multiple sets of vertical multistage centrifugal pumps arranged side by side between the inlet main pipe and the outlet main pipe; the inlet end of the vertical multistage centrifugal pump is connected to the inlet main pipe, and the outlet end of the vertical multistage centrifugal pump is connected to the outlet main pipe; a pressure stabilizing tank is located above the base plate, and the pressure stabilizing tank is connected to the outlet main pipe via a connecting hose.

[0007] Preferably, the inlet end of the vertical multistage centrifugal pump is fixedly connected to a first rubber flexible joint, wherein the other end of the first rubber flexible joint is connected to the main inlet pipe through an inlet branch pipe; one end of the inlet branch pipe is connected to the main inlet pipe, wherein the other end of the inlet branch pipe is provided with a first manual butterfly valve, and the first manual butterfly valve is connected to the first rubber flexible joint.

[0008] Preferably, the outlet end of the vertical multistage centrifugal pump is fixedly connected to an elbow pipe, and the other end of the elbow pipe is fixedly connected to a second rubber flexible joint; the second rubber flexible joint is connected to the main outlet pipe through an outlet branch pipe, wherein a second manual butterfly valve is provided at one end of the outlet branch pipe near the second rubber flexible joint, and the second manual butterfly valve is connected to the second rubber flexible joint.

[0009] Preferably, the main water outlet pipe is equipped with an electrical contact pressure gauge and a pressure sensor.

[0010] Preferably, one end of the connecting hose is connected to the bottom of the pressure stabilizing tank, and a copper ball valve is provided at the end of the connecting hose near the main water outlet pipe.

[0011] Preferably, the lower end of the vertical multistage centrifugal pump is fixedly connected to the base plate by a fixing screw, wherein multiple pads are provided between the vertical multistage centrifugal pump and the base plate.

[0012] Preferably, the filter includes a cylindrical body, wherein a filter element is provided in the inner cavity of the cylindrical body; a sealing cover is provided on the top of the cylindrical body, wherein the sealing cover is detachably connected to the cylindrical body.

[0013] Preferably, the upper end of the sealed water source tank is provided with a stirring motor and a tank cavity pressure gauge, wherein the output shaft of the stirring motor extends into the inner cavity of the sealed water source tank, and the output shaft of the stirring motor is provided with stirring blades.

[0014] Preferably, an industrial control computer is provided on the bottom plate near the pressure stabilizing tank, wherein the industrial control computer is electrically connected to multiple sets of vertical multistage centrifugal pumps, stirring motors, and pressure gauges and pressure sensors with electrical contacts.

[0015] Compared with existing technologies, the beneficial effects of this utility model are as follows: By introducing multiple sets of vertical multistage centrifugal pumps connected in parallel between the inlet and outlet main pipes, combined with the regulating effect of the pressure stabilizing tank, this utility model can effectively compensate for pressure loss during the water supply process, ensuring a stable and compliant water supply pressure under different distances and water demand conditions. A filter is added between the drain pipe and the constant pressure water supply assembly, using a filter element to finely filter the water, effectively removing impurities and particles, improving water quality, and ensuring the safety and purity of the water supply. The detachable design of the filter facilitates filter element replacement and maintenance, ensuring a long-term stable filtration effect. The inlet and outlet ends of the vertical multistage centrifugal pumps are connected to the inlet and outlet branch pipes respectively through a first and a second rubber flexible joint, increasing the system's flexibility and shock resistance, and reducing the impact of pipe vibration or thermal expansion. The system mitigates the risk of leakage due to cold shrinkage. The inclusion of a first and second manual butterfly valve facilitates isolated maintenance of individual pumps without affecting the overall water supply system. Electrical connection between the industrial control computer and multiple vertical multistage centrifugal pumps, stirring motors, pressure gauges, and pressure sensors enables remote monitoring and automatic adjustment of the water supply system. The industrial control computer intelligently adjusts the pump's operating status based on real-time pressure data to ensure constant water supply pressure. Simultaneously, the stirring motor's operation can be optimized based on water quality, improving the system's intelligence and operational efficiency. This intelligent constant pressure water supply equipment not only addresses the shortcomings of traditional equipment in pressure stability and water purification but also enhances system reliability and operational efficiency through intelligent monitoring and management, providing a higher-quality, more efficient, and reliable solution for various water supply needs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the constant pressure water supply component of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the vertical multistage centrifugal pump of this utility model;

[0019] Figure 4This is a schematic diagram of the connection between the angle valve and the filter of this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the filter of this utility model.

[0021] The components include: 1. Sealed water source tank; 2. Support base; 3. Liquid inlet; 4. Drain pipe; 5. Angle valve; 6. Transition pipe; 7. Filter; 701. Cylinder; 702. Filter element; 703. Sealing cover; 8. Water inlet; 9. Constant pressure water supply assembly; 901. Base plate; 902. Main water inlet pipe; 903. Main water outlet pipe; 904. Vertical multistage centrifugal pump; 905. Water inlet; 906. Water outlet; 907. Stable... Pressure tank; 908. Connecting hose; 10. Water outlet; 11. First rubber expansion joint; 12. Water inlet branch pipe; 13. First manual butterfly valve; 14. Elbow pipe; 15. Second rubber expansion joint; 16. Water outlet branch pipe; 17. Second manual butterfly valve; 18. Electrical contact pressure gauge; 19. Pressure sensor; 20. Copper ball valve; 21. Pad; 22. Agitator motor; 23. Tank cavity pressure gauge; 24. Industrial control integrated computer. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] Please refer to the following: Figures 1 to 5 To achieve the above objectives, this utility model provides the following technical solution:

[0024] A novel constant pressure water supply device includes a sealed water source tank 1, with a support base 2 at its bottom; a liquid inlet 3 at the top of the sealed water source tank 1, which is connected to an external water source via a pipeline; a drain pipe 4 at the bottom of the sealed water source tank 1, one end of which is connected to the inner cavity of the sealed water source tank 1, and the other end of which is fixedly connected to an angle valve 5; one end of the angle valve 5 is connected to the drain pipe 4, and the other end of the angle valve 5 is fixedly connected to a transition pipe 6, and the other end of the transition pipe 6 is fixedly connected to a filter 7; a water inlet 8 is located at the lower end of one side of the filter 7, which is connected to the transition pipe 6; and a water inlet 8 is located at the upper end of the other side of the filter 7. The end is provided with a water outlet 10, which is connected to the constant pressure water supply component 9; the constant pressure water supply component 9 includes a base plate 901, on which an inlet main pipe 902 and an outlet main pipe 903 are provided above the base plate 901, and multiple sets of vertical multistage centrifugal pumps 904 are arranged side by side between the inlet main pipe 902 and the outlet main pipe 903; the inlet end 905 of the vertical multistage centrifugal pump 904 is connected to the inlet main pipe 902, and the outlet end 906 of the vertical multistage centrifugal pump 904 is connected to the outlet main pipe 903; a pressure stabilizing tank 907 is provided above the base plate 901, and the pressure stabilizing tank 907 is connected to the outlet main pipe 903 through a connecting hose 908.

[0025] As one of the core components of the equipment, the sealed water tank 1 is responsible for storing water from an external water source. Its bottom support 2 ensures the stability of the tank. The inlet end 3 is located at the top of the sealed water tank 1 and is connected to an external water source (such as tap water, groundwater, or a reservoir) via a pipeline to achieve a continuous water supply. When the water level in the sealed water tank 1 reaches a preset height, water is introduced into the subsequent treatment process through the drain pipe 4. The angle valve 5 acts as a control valve to regulate the flow and volume of water. After flowing out of the angle valve 5, the water enters the filter 7 through the transition pipe 6. The filter 7 contains a filter element 702 to remove impurities and suspended solids from the water, improving water quality. The bottom plate 901 serves as a constant pressure... The supporting structure of the water supply component 9 has an inlet main pipe 902 and an outlet main pipe 903 on top. Multiple vertical multistage centrifugal pumps 904 are arranged side by side between the inlet main pipe 902 and the outlet main pipe 903, responsible for pressurizing the pretreated water and delivering it to the outlet main pipe 903. The operation of the vertical multistage centrifugal pumps 904 can achieve precise control of the water supply pressure. The pressure stabilizing tank 907 is connected to the outlet main pipe 903 through a connecting hose 908. It is used to store the pressurized water and plays a buffering role when the water supply pressure fluctuates, ensuring the stability of the water supply pressure. It realizes precise control of water supply pressure and continuous water purification, providing an efficient, stable and safe water supply solution for various water use scenarios.

[0026] Please refer to the following: Figure 2 , Figure 3 As an embodiment of the present utility model, the water inlet 905 of the vertical multistage centrifugal pump 904 is fixedly connected to a first rubber flexible joint 11, wherein the other end of the first rubber flexible joint 11 is connected to the water inlet main pipe 902 through a water inlet branch pipe 12; one end of the water inlet branch pipe 12 is connected to the water inlet main pipe 902, wherein the other end of the water inlet branch pipe 12 is provided with a first manual butterfly valve 13, and the first manual butterfly valve 13 is connected to the first rubber flexible joint 11.

[0027] In the above-described scheme, the vertical multistage centrifugal pump 904, as a key component of the constant pressure water supply equipment, is responsible for lifting the water source from a low position to a high position and delivering the water to the water supply system through pressurization. The first rubber expansion joint 11 is connected to the water inlet end 905 of the vertical multistage centrifugal pump 904, mainly playing the role of shock absorption, noise reduction, and compensation for pipeline displacement. Since the vertical multistage centrifugal pump 904 will generate vibration during operation, the first rubber expansion joint 11 can effectively absorb these vibrations and protect the pump body and connecting pipelines from damage. One end of the water inlet branch pipe 12 is connected to the water inlet main pipe 902, and the other end is connected to the first rubber expansion joint 11 through the first manual butterfly valve 13, forming a complete water inlet channel. The first manual butterfly valve 13 serves as a control valve, used to regulate or cut off the water flow in the water inlet branch pipe 12. By manually operating the opening of the first manual butterfly valve 13, precise control of the water inlet of the vertical multistage centrifugal pump 904 can be achieved.

[0028] Please refer to the following: Figure 2 , Figure 3 As an embodiment of the present utility model, the outlet end 906 of the vertical multistage centrifugal pump 904 is fixedly connected to an elbow pipe 14, wherein the other end of the elbow pipe 14 is fixedly connected to a second rubber flexible joint 15; the second rubber flexible joint 15 is connected to the outlet main pipe 903 through an outlet branch pipe 16, wherein a second manual butterfly valve 17 is provided at one end of the outlet branch pipe 16 near the second rubber flexible joint 15, and the second manual butterfly valve 17 is connected to the second rubber flexible joint 15.

[0029] In the above-described scheme, the vertical multistage centrifugal pump 904, as the core component of the water supply system, is responsible for lifting the water source from a low position to a high position and pressurizing it to deliver the water to the outlet 906. The elbow pipe 14 is connected to the outlet 906 of the vertical multistage centrifugal pump 904 to change the direction of water flow, allowing it to smoothly enter the subsequent pipeline system. The second rubber expansion joint 15 is connected to the other end of the elbow pipe 14, mainly serving to reduce vibration, noise, and compensate for pipeline displacement. Because the vertical multistage centrifugal pump 904 will generate vibration during operation... The second rubber expansion joint 15 can effectively absorb these vibrations and protect the outlet pipe from damage. One end of the outlet branch pipe 16 is connected to the second rubber expansion joint 15, and the other end is connected to the outlet main pipe 903, forming a complete outlet channel. The second manual butterfly valve 17, as a control valve, is installed at the end of the outlet branch pipe 16 near the second rubber expansion joint 15 to regulate or cut off the water flow in the outlet branch pipe 16. By manually operating the opening of the second manual butterfly valve 17, the water output of the vertical multistage centrifugal pump 904 can be precisely controlled.

[0030] Please see Figure 2 As one embodiment of this utility model, the main water outlet pipe 903 is equipped with an electrical contact pressure gauge 18 and a pressure sensor 19.

[0031] In the above-described scheme, the electric contact pressure gauge 18 is an instrument integrating measurement and control functions. It can not only display the water pressure value in the main water pipe 903 in real time, but also send an electrical signal through its internal electric contacts when the pressure reaches preset upper and lower limits. When the water pressure in the main water pipe 903 changes, the Bourdon tube of the pressure gauge deforms, causing the pointer to move on the scale, thus indicating the current water pressure value. If the water pressure exceeds or falls below the preset upper and lower limits, the contacts inside the electric contact pressure gauge 18 will close or open, sending a corresponding electrical signal. The pressure sensor 19 is a high-precision, high-stability measuring element used to measure the water pressure in the main water pipe 903 in real time and accurately, and convert it into an electrical signal output. When... When the water pressure in the main outlet pipe 903 acts on the sensing surface of the pressure sensor 19, the sensitive element inside the sensor (such as a piezoresistive or capacitive type) will deform or displace, thereby changing its electrical properties (such as resistance and capacitance). By measuring these changes in electrical properties, the pressure sensor 19 can accurately calculate the current water pressure value and convert it into a standard electrical signal output. In the water supply system, the electric contact pressure gauge 18 and the pressure sensor 19 work together to monitor the pressure in the main outlet pipe 903. The electric contact pressure gauge 18 is mainly used to set the upper and lower limits of the water pressure and send control signals; while the pressure sensor 19 is used to measure the water pressure value in real time and accurately, and convert it into an electrical signal for use by the control center. The two complement each other to ensure the stable operation of the water supply system and the quality of the water supply.

[0032] Please see Figure 2 As one embodiment of this utility model, one end of the connecting hose 908 is connected to the bottom of the pressure stabilizing tank 907, wherein a copper ball valve 20 is provided at the end of the connecting hose 908 near the main water outlet pipe 903.

[0033] In the above-described scheme, the connecting hose 908 serves as a flexible connection between the pressure tank 907 and the main outlet pipe 903. Its main function is to compensate for pipe deformation caused by factors such as temperature changes, vibration, or displacement, while ensuring smooth water flow. When the water supply system is running, the water in the pressure tank 907 is connected to the main outlet pipe 903 through the connecting hose 908, forming a continuous water supply channel. The connecting hose 908 has a certain degree of elasticity, which can absorb and buffer vibrations from the pressure tank 907 and the main outlet pipe 903, protecting the pipeline system from damage. The connecting hose 908 is usually made of corrosion-resistant, high-pressure-resistant, and wear-resistant materials to ensure its reliability and durability during long-term operation. The copper ball valve 20 is installed at one end of the connecting hose 908 near the main outlet pipe 903 and is used to control the flow of water and regulate the flow rate. The copper ball valve 20 has a spherical valve core inside. By rotating the valve core, the water flow channel can be opened or closed. By finely adjusting the rotation angle of the valve core, the water flow rate can also be precisely regulated.

[0034] Please refer to the following: Figure 2 , Figure 3 As one embodiment of the present utility model, the lower end of the vertical multistage centrifugal pump 904 is fixedly connected to the base plate 901 by a fixing screw, wherein a plurality of pads 21 are provided between the vertical multistage centrifugal pump 904 and the base plate 901.

[0035] In the above-described scheme, the lower end of the vertical multistage centrifugal pump 904 is tightly connected to the base plate 901 by fixing screws, ensuring that the vertical multistage centrifugal pump 904 will not shift or loosen due to vibration or external force during operation. Multiple pads 21 are placed between the vertical multistage centrifugal pump 904 and the base plate 901, mainly to adjust the pump's height and level, while reducing vibration transmission and noise generation. The pads 21 are typically made of rubber, metal, or other composite materials, possessing a certain degree of elasticity and wear resistance. According to actual needs, an appropriate number and specification of pads 21 are pre-placed on the base plate 901. Then, the vertical multistage centrifugal pump 904 is placed on the pads 21, and its height and level are adjusted to ensure the stability and balance of the pump during operation.

[0036] Please refer to the following: Figure 4 , Figure 5 As one embodiment of the present utility model, the filter 7 includes a cylinder 701, wherein a filter element 702 is provided in the inner cavity of the cylinder 701; a sealing cover 703 is provided on the top of the cylinder 701, wherein the sealing cover 703 is detachably connected to the cylinder 701.

[0037] In the above-described scheme, the cylinder 701 serves as the main body of the filter 7. The cylinder 701 is typically made of corrosion-resistant, high-strength materials, such as stainless steel or carbon steel. The interior of the cylinder 701 forms a closed space to accommodate the filter element 702 and the liquid to be filtered. The filter element 702 is the core component of the filter 7, determining its filtration accuracy and efficiency. The filter element 702 is typically made of porous materials, such as sintered metal materials, sintered microporous plastics, or fiber fillers. When water flows through the filter element 702, impurities are trapped on its surface or inside, while clean fluid flows out through it. The sealing cover 703 is located above the cylinder 701 and forms a detachable connection with it. The main function of the sealing cover 703 is to ensure the airtightness of the interior of the cylinder 701 and prevent fluid leakage. Simultaneously, the sealing cover 703 facilitates the replacement and maintenance of the filter element 702.

[0038] Please see Figure 1 As one embodiment of the present invention, the upper end of the sealed water source tank 1 is provided with a stirring motor 22 and a tank cavity pressure gauge 23, wherein the output shaft of the stirring motor 22 extends into the inner cavity of the sealed water source tank 1, and the output shaft of the stirring motor 22 is provided with stirring blades (as shown in the figure).

[0039] In the above-described scheme, to improve the fluidity of the water source in the sealed water tank 1, the stirring motor 22 is started. The output shaft of the stirring motor 22 begins to rotate, driving the stirring blades to rotate at high speed in the inner cavity of the sealed water tank 1. The rotation of the stirring blades generates strong shearing and flow effects, fully agitating the water source in the tank. By adjusting the speed of the stirring motor 22 and the shape and number of the stirring blades, the homogenization of the water source can be achieved. The tank pressure gauge 23 is used to monitor the pressure changes in the sealed water tank 1 in real time. When the pressure in the tank exceeds or falls below the preset safety range, the tank pressure gauge 23 will issue an alarm or indication signal. By monitoring the pressure in the tank, potential safety hazards can be detected and dealt with in a timely manner, such as equipment damage or leakage caused by excessive pressure. By precisely controlling the operation of the stirring motor 22 and monitoring the changes in the pressure in the tank in real time, the quality of the water source in the sealed water tank 1 and the safety and stability of the system can be ensured.

[0040] Please refer to the following: Figure 1 , Figure 2 As an embodiment of this utility model, an industrial control integrated machine 24 is provided on the bottom plate 901 near the pressure stabilizing tank 907. The industrial control integrated machine 24 is electrically connected to multiple sets of vertical multistage centrifugal pumps 904, stirring motors 22, and pressure gauges 18 and pressure sensors 19.

[0041] In the above-described scheme, the industrial control computer 24 serves as the control center of the entire system, responsible for receiving, processing, and sending various signals and data to achieve comprehensive monitoring and control of the system. Through electrical connection, the industrial control computer 24 can collect pressure data provided by devices such as the electrical contact pressure gauge 18 and pressure sensor 19, as well as the operating status data of the vertical multistage centrifugal pump 904 and the stirring motor 22 in real time. The industrial control computer 24 processes and analyzes the collected data to determine whether the system's operating status is normal and whether control measures are needed. Based on the data processing results, the industrial control computer 24 sends control commands to devices such as the vertical multistage centrifugal pump 904 and the stirring motor 22 to adjust their operating status and maintain the stable and efficient operation of the system.

[0042] The industrial control computer 24 monitors the operating status of the vertical multistage centrifugal pump 904 in real time, including parameters such as the pump's speed, flow rate, and pressure. When the vertical multistage centrifugal pump 904 malfunctions or becomes abnormal, the industrial control computer 24 can immediately issue an alarm and display fault information so that operators can take timely measures. The industrial control computer 24 can remotely control the start, stop, and speed adjustment of the vertical multistage centrifugal pump 904 to adapt to different water supply needs. The industrial control computer 24 collects pressure data from the electrical contact pressure gauge 18 and pressure sensor 19 in real time to monitor system pressure changes. When the system pressure exceeds or falls below the set safety range, the industrial control computer 24 can automatically trigger protection measures, such as shutting down the vertical multistage centrifugal pump 904 or the stirring motor 22, to prevent equipment damage or safety accidents. Through preset programs and algorithms, the industrial control computer 24 realizes automated control of the entire water supply system and can automatically adjust the operating status of the vertical multistage centrifugal pump 904 and the stirring motor 22 according to actual needs.

[0043] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A novel constant pressure water supply device, comprising a sealed water source tank (1), wherein a support base (2) is provided below the sealed water source tank (1); characterized in that, The sealed water tank (1) has an inlet end (3) at the top, which is connected to an external water source through a pipeline; the sealed water tank (1) has a drain pipe (4) at the bottom, one end of which is connected to the inner cavity of the sealed water tank (1), and the other end of which is fixedly connected to an angle valve (5); one end of the angle valve (5) is connected to the drain pipe (4), and the other end of the angle valve (5) is fixedly connected to a transition pipe (6), and the other end of the transition pipe (6) is fixedly connected to a filter (7); the filter (7) has an inlet (8) at the lower end of one side, which is connected to the transition pipe (6); the filter (7) has an outlet (10) at the upper end of the other side, which is connected to the transition pipe (6). 0) Connected to a constant pressure water supply component (9); the constant pressure water supply component (9) includes a base plate (901), wherein an inlet main pipe (902) and an outlet main pipe (903) are provided above the base plate (901), wherein multiple sets of vertical multistage centrifugal pumps (904) are arranged side by side between the inlet main pipe (902) and the outlet main pipe (903); the inlet end (905) of the vertical multistage centrifugal pump (904) is connected to the inlet main pipe (902), wherein the outlet end (906) of the vertical multistage centrifugal pump (904) is connected to the outlet main pipe (903); a pressure stabilizing tank (907) is provided above the base plate (901), wherein the pressure stabilizing tank (907) is connected to the outlet main pipe (903) through a connecting hose (908).

2. The novel constant pressure water supply equipment according to claim 1, characterized in that, The vertical multistage centrifugal pump (904) has a first rubber flexible joint (11) fixedly connected to its inlet end (905). The other end of the first rubber flexible joint (11) is connected to the main inlet pipe (902) through an inlet branch pipe (12). One end of the inlet branch pipe (12) is connected to the main inlet pipe (902), and the other end of the inlet branch pipe (12) is equipped with a first manual butterfly valve (13), which is connected to the first rubber flexible joint (11).

3. The novel constant pressure water supply equipment according to claim 1, characterized in that, The vertical multistage centrifugal pump (904) has an elbow pipe (14) fixedly connected to its outlet end (906), and a second rubber flexible joint (15) fixedly connected to the other end of the elbow pipe (14). The second rubber flexible joint (15) is connected to the outlet main pipe (903) through an outlet branch pipe (16), and a second manual butterfly valve (17) is provided at one end of the outlet branch pipe (16) near the second rubber flexible joint (15), and the second manual butterfly valve (17) is connected to the second rubber flexible joint (15).

4. A novel constant pressure water supply device according to claim 3, characterized in that, The main outlet pipe (903) is equipped with an electric contact pressure gauge (18) and a pressure sensor (19).

5. A novel constant pressure water supply device according to claim 1, characterized in that, One end of the connecting hose (908) is connected to the bottom of the pressure stabilizing tank (907), and a copper ball valve (20) is provided at the end of the connecting hose (908) near the main water outlet pipe (903).

6. A novel constant pressure water supply device according to claim 1, characterized in that, The lower end of the vertical multistage centrifugal pump (904) is fixedly connected to the base plate (901) by a fixing screw, wherein multiple pads (21) are provided between the vertical multistage centrifugal pump (904) and the base plate (901).

7. A novel constant pressure water supply device according to claim 1, characterized in that, The filter (7) includes a cylinder (701), wherein a filter element (702) is provided in the inner cavity of the cylinder (701); a sealing cover (703) is provided on the top of the cylinder (701), wherein the sealing cover (703) is detachably connected to the cylinder (701).

8. A novel constant pressure water supply device according to claim 1, characterized in that, The sealed water source tank (1) is equipped with a stirring motor (22) and a tank cavity pressure gauge (23) at the upper end. The output shaft of the stirring motor (22) extends into the inner cavity of the sealed water source tank (1), and stirring blades are provided on the output shaft of the stirring motor (22).

9. A novel constant pressure water supply device according to claim 1, characterized in that, An integrated industrial control computer (24) is provided on the bottom plate (901) near the pressure stabilizing tank (907). The integrated industrial control computer (24) is electrically connected to multiple sets of vertical multistage centrifugal pumps (904), stirring motors (22), electrical contact pressure gauges (18), and pressure sensors (19).

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