A constant pressure variable frequency water supply equipment

Abstract

The present invention discloses a constant pressure variable frequency water supply equipment, including an energy storage tank, a first water storage tank, a second water storage tank, a pipe diameter adjustment mechanism, a booster pump and a water quality sampling mechanism. The first water storage tank is arranged on the left side of the energy storage tank, and the top of the energy storage tank is connected with the top of the first water storage tank through a first connecting pipe. The constant pressure variable frequency water supply equipment is provided with a first water storage tank, a constant force energy storage mechanism and a pipe diameter adjustment mechanism. The first water storage tank and the second water storage tank are both filled with water. When the water is used at night, the water supply pressure of the municipal water supply pipe is greatly improved by adjusting the pipe diameter adjustment mechanism. At the same time, the constant force spring drives the winding wheel to rotate, and the winding wheel pulls the piston plate up through the steel wire rope. The piston plate squeezes the gas of the energy storage tank, and at the same time, the gas squeezes the water in the first water storage tank and pressurizes the second water delivery pipe. When the user uses water, once the water pressure of the municipal water supply pipe fluctuates, the water pressure in the second water storage tank is pressure compensated, which greatly improves the stability of water delivery.

Description

Technical Field

[0001] The invention relates to the technical field of variable frequency water supply equipment, in particular to a constant pressure variable frequency water supply equipment. Background Art

[0002] Constant pressure variable frequency water supply equipment is widely used in secondary pressurized water supply in residential areas. It utilizes the characteristics of variable frequency water supply and is more energy-saving than traditional water supply methods. It does not require large-capacity water tanks and avoids the problem of water quality deterioration caused by poor fluidity.

[0003] Existing constant pressure variable frequency water supply equipment is usually not equipped with a water quality sampling mechanism. Once a public health safety incident occurs, it is difficult to trace the source. At the same time, it is also impossible to judge the cleanliness of the constant pressure variable frequency water supply equipment based on the water quality detection records. In addition, the existing constant pressure variable frequency water supply equipment cannot effectively utilize the municipal water supply pressure, which leads to an increase in the power consumption of the constant pressure variable frequency water supply. The existing constant pressure variable frequency water supply equipment still needs to intermittently start the booster pump to complete the water supply and water pressure compensation during water valleys. However, the frequent starting and closing of the booster pump not only increases the power consumption, but also greatly reduces the service life of the booster pump. In view of the above problems, the existing equipment needs to be improved. Summary of the invention

[0004] The object of the present invention is to provide a constant pressure variable frequency water supply equipment to solve the problem that the existing constant pressure variable frequency water supply equipment mentioned in the above background technology is usually not equipped with a water quality sampling mechanism. Once a public health safety incident occurs, it is difficult to trace the source. At the same time, it is also impossible to judge the cleanliness condition in the constant pressure variable frequency water supply equipment based on the water quality detection records. In addition, the existing constant pressure variable frequency water supply equipment cannot effectively utilize the municipal water supply pressure, which leads to an increase in the power consumption of the constant pressure variable frequency water supply. The existing constant pressure variable frequency water supply equipment still needs to intermittently start the booster pump to complete the water supply and water pressure compensation when using water valley. However, the frequent starting and closing of the booster pump not only increases the power consumption, but also greatly reduces the service life of the booster pump.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a constant pressure variable frequency water supply device, comprising an energy storage tank, a first water storage tank, a second water storage tank, a pipe diameter adjustment mechanism, a booster pump and a water quality sampling mechanism, wherein the first water storage tank is arranged on the left side of the energy storage tank, and the top of the energy storage tank is connected to the top of the first water storage tank through a first connecting pipe, and a water vapor separator is installed at the connection between the first connecting pipe and the first water storage tank, and a constant force energy storage mechanism is installed inside the energy storage tank;

[0006] A second water storage tank is arranged on the right side of the energy storage tank, and a negative pressure suppressor is installed on the top of the second water storage tank. The left side of the pipe diameter adjustment mechanism penetrates through the second water storage tank and is connected with it, and the right end of the pipe diameter adjustment mechanism is connected with the municipal water supply pipe;

[0007] A plurality of booster pumps are arranged on the front side of the energy storage tank, and the rear sides of the plurality of booster pumps are simultaneously communicated with a first water delivery pipe, and the front sides of the plurality of booster pumps are simultaneously communicated with a second water delivery pipe. One end of the first water delivery pipe is communicated with the bottom of the second water storage tank, and the other end of the first water delivery pipe is communicated with the second water delivery pipe. A one-way valve is installed at the communication part of the first water delivery pipe and the second water delivery pipe. The side of the second water delivery pipe away from the booster pump is communicated with the first water storage tank through a second connecting pipe, and one end of the second water delivery pipe away from the second connecting pipe is communicated with a water quality sampling mechanism.

[0008] Preferably, the constant force energy storage mechanism includes a piston plate, a steel wire rope, a connecting shaft, a winding wheel and a constant force spring. The piston plate is slidably installed inside the energy storage tank, and a connecting shaft is fixedly installed at the top of the energy storage tank. A winding wheel is rotatably installed on the outside of the connecting shaft, and the winding wheel is connected with the piston plate through a steel wire rope. The inner side of the constant force spring is fixedly installed on the connecting shaft, and the outer side of the constant force spring is fixedly installed on the winding wheel;

[0009] By adopting the above technical solution, the constant force spring pulls the winding wheel to rotate under the action of its own resilience. The winding wheel winds the steel wire rope and pulls the piston plate to rise, and the resilience of the constant force spring is calculated so that the pressure for the piston plate to rise reaches a predetermined value.

[0010] Preferably, four winding wheels are provided, and the four winding wheels are arranged in a "field" shape with the center line of the piston plate as the center;

[0011] By adopting the above technical solution, the four winding wheels wind the steel wire ropes simultaneously, making the rise of the piston plate more balanced and stable.

[0012] Preferably, the pipe diameter adjusting mechanism includes a fixed disk, a turntable, a driving motor, a sliding disk, an electric push rod, branch pipes, a main pipe and a sealing ring. The fixed disk penetrates through the right side of the second water storage tank and is welded and fixed on the second water storage tank. An electric push rod is fixedly installed on the outside of the fixed disk, and the other end of the electric push rod is connected with the sliding disk. A turntable is arranged between the fixed disk and the sliding disk. One end of the turntable is in spline connection with the driving motor, and the other end of the turntable is rotatably connected with the sliding disk. The driving motor is installed inside the fixed disk. A plurality of branch pipes with different diameters are arranged inside the fixed disk, and a main pipe is arranged inside the turntable. Sealing rings are installed at the joints of the branch pipes and the turntable;

[0013] By adopting the above technical solution, the driving motor drives the turntable to rotate, so that while the turntable rotates, the main pipe on the turntable corresponds to the corresponding branch pipe. Then the electric push rod pulls the sliding disk, so that the turntable fits with the fixed disk, and at the same time the main pipe on the turntable fits with the branch pipe. The sealing rings on the outside of the branch pipes fill the gaps, making the sealing strength higher.

[0014] Preferably, the municipal water supply pipe is connected to the main pipe, and the main pipe is connected to the second water storage tank through a corresponding branch pipe;

[0015] By adopting the above technical solution, it is convenient for the municipal water supply pipe to supply water to the second water storage tank through the main pipe and the corresponding branch pipe.

[0016] Preferably, the water quality sampling mechanism comprises a sealing shell, a slider, a test tube hole, a test tube, a linear motor, a sampling tube, an electromagnetic shutoff valve, an ultraviolet sterilization lamp, an electromagnetic switch, and a shading plate. The sealing shell is fixed at the bottom of the second water pipe, one end of the sampling tube is connected to the second water pipe, and the other end of the sampling tube passes through the sealing shell and is connected to the electromagnetic shutoff valve. A slider is slidably installed inside the sealing shell, and the slider and the sealing shell are connected by a linear motor. A test tube hole is opened on the surface of the slider, and a test tube is installed inside the test tube hole. An ultraviolet sterilization lamp is installed inside the sealing shell, and shading plates are arranged on both sides of the ultraviolet sterilization lamp, and the shading plate and the sealing shell are connected by an electromagnetic switch.

[0017] By adopting the above technical solution, the linear motor drives the slider to slide in the sealed shell, so that the test tube moves to just below the sampling tube. The electromagnetic shut-off valve controls the flow of the water sample, so that the water sample gradually drips into the test tube, and the linear motor drives the slider to slide in sequence, so that the test tubes complete sampling in sequence.

[0018] Preferably, the sampling tube is arranged between two shading plates, and the sampling tube is located directly above the test tube;

[0019] By adopting the above technical solution, two shading plates seal the test tube below the sampling tube and the ultraviolet sterilization lamp, thereby preventing the ultraviolet sterilization lamp from sterilizing other test tubes and the water samples therein and causing sample distortion.

[0020] Preferably, a water level sensor is installed inside the second water storage tank, a first water pressure sensor is installed inside the second water delivery pipe, and a second water pressure sensor is installed inside the municipal water supply pipe;

[0021] By adopting the above technical solution, the municipal water supply pipe increases the water pressure and reduces the flow rate through the pipe diameter adjustment mechanism. Through this adjustment, the municipal water supply can be directly supplied to users, which will lead to a reduction in the municipal water supply. Once the water level in the second water storage tank is too low, the pipe diameter adjustment mechanism is switched and the booster pump is used to increase the water pressure, thereby achieving the effect of efficiently utilizing the municipal water pressure.

[0022] Preferably, a displacement sensor is fixedly mounted on the surface of the piston plate, a control center is fixedly mounted on the outer side of the energy storage tank, and the control center is electrically connected to the booster pump, the displacement sensor, the water level sensor, the first water pressure sensor, and the second water pressure sensor;

[0023] By adopting the above technical solution, when the water level is low at night, the constant force energy storage mechanism pushes the water in the first water tank for water supply. Once the water flow in the first water tank becomes less, the control center starts the booster pump to replenish the water in the first water tank.

[0024] Compared with the prior art, the beneficial effects of the present invention are: the constant pressure variable frequency water supply equipment,

[0025] (1) A first water storage tank, a constant force energy storage mechanism and a pipe diameter adjustment mechanism are provided. The first water storage tank and the second water storage tank are both filled with water. When the water is used at night, the water supply pressure of the municipal water supply pipe is greatly increased by adjusting the pipe diameter adjustment mechanism. At the same time, the constant force spring drives the winding wheel to rotate, and the winding wheel pulls the piston plate up through the wire rope. The piston plate squeezes the gas in the energy storage tank. At the same time, the gas squeezes the water in the first water storage tank and pressurizes the second water delivery pipe. When the user uses water, once the water pressure of the municipal water supply pipe fluctuates, the water pressure in the second water storage tank is used for pressure compensation, which greatly improves the stability of water delivery;

[0026] (2) A water quality sampling mechanism is provided. A test tube is placed in the test tube hole. The linear motor pushes the slider to move the test tube to the bottom of the sampling tube. Then the electromagnetic switch pushes two shading plates to cover the sampling tube and the corresponding test tube below. The ultraviolet germicidal lamp sterilizes to prevent bacteria from contaminating the test tube. The water in the second water pipe flows into the sampling tube. At the same time, the electromagnetic shut-off valve controls the flow rate of the water flow so that the water flow drips into the test tube. The linear motor drips water samples into multiple test tubes in turn. In the process of replacing the test tube, the ultraviolet germicidal lamp is also used for sterilization. At the same time, the shading plate is also needed to protect the water samples in other test tubes from being irradiated by the ultraviolet germicidal lamp, which may cause distortion of the water samples.

[0027] (3) A pipe diameter adjustment mechanism is provided, through which the municipal water supply pipe is connected to the second water storage tank and supplies water to the second water storage tank. The water pressure of the municipal water supply is detected by the second water pressure sensor. At the same time, the control center adjusts the pipe diameter adjustment mechanism while ensuring the balance between the water use of the community and the municipal water supply. The electric push rod pushes the turntable and the sliding plate away from the fixed plate, and the drive motor drives the turntable to rotate, so that the main pipe in the turntable is connected with different branch pipes in the fixed plate. The pipe diameter of the municipal water supply pipe connecting the second water storage tank is controlled by the cooperation between the main pipe and the branch pipes of different diameters, thereby controlling the water pressure and flow rate of the municipal water supply pipe supplying water to the second water storage tank, which greatly reduces the cost of using the constant pressure variable frequency water supply equipment to actively activate the booster pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the main cross-sectional structure of the present invention;

[0029] Figure 2 It is a schematic diagram of a top-view cross-sectional structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the main cross-sectional structure of the water quality sampling mechanism of the present invention;

[0031] Figure 4 It is a schematic diagram of the cross-sectional structure of the water quality sampling mechanism of the present invention from top view;

[0032] Figure 5 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0033] Figure 6 This is a schematic diagram of the three-dimensional structure of the energy storage tube of the present invention;

[0034] Figure 7 It is a schematic diagram of the three-dimensional cross-section structure of the pipe diameter adjustment mechanism of the present invention.

[0035] In the figure: 1. Energy storage tank; 2. First water storage tank; 3. First connecting pipe; 4. Water vapor separator; 5. Constant force energy storage mechanism; 51. Piston plate; 52. Wire rope; 53. Connecting shaft; 54. Winding wheel; 55. Constant force spring; 6. Second water storage tank; 7. Negative pressure suppressor; 8. Pipe diameter adjustment mechanism; 81. Fixed plate; 82. Turntable; 83. Driving motor; 84. Sliding plate; 85. Electric push rod; 86. Branch pipe; 87. Main pipe; 88. Sealing ring; 9. Municipal water supply pipe; 10. Booster Pump; 11. First water pipe; 12. Second water pipe; 13. One-way valve; 14. Water quality sampling mechanism; 141. Sealing shell; 142. Slider; 143. Test tube; 144. Test tube hole; 145. Linear motor; 146. Sampling tube; 147. Solenoid shut-off valve; 148. Ultraviolet sterilization lamp; 149. Solenoid switch; 1410. Sunshade; 15. Water level sensor; 16. First water pressure sensor; 17. Second water pressure sensor; 18. Displacement sensor; 19. Control center. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-7 The present invention provides a technical solution: a constant pressure variable frequency water supply device, such as Figure 1 , Figure 2 and Figure 6As shown in the figure, a first water storage tank 2 is provided on the left side of the energy storage tank 1, and the top of the energy storage tank 1 is connected to the top of the first water storage tank 2 through a first connecting pipe 3. At the same time, a water vapor separator 4 is installed at the connection between the first connecting pipe 3 and the first water storage tank 2, and a constant force energy storage mechanism 5 is installed inside the energy storage tank 1.

[0038] In a further embodiment, the constant force energy storage mechanism 5 includes a piston plate 51, a steel wire rope 52, a connecting shaft 53, a winding wheel 54 and a constant force spring 55. The piston plate 51 is slidably installed inside the energy storage tank 1, and the connecting shaft 53 is fixedly installed at the top of the energy storage tank 1. The winding wheel 54 is rotatably installed on the outside of the connecting shaft 53, and the winding wheel 54 is connected to the piston plate 51 through the steel wire rope 52. The inner side of the constant force spring 55 is fixedly installed on the connecting shaft 53, and the outer side of the constant force spring 55 is fixedly installed on the winding wheel 54. The constant force spring 55 pulls the piston plate 51 to slide through the steel wire rope 52. Since the resilience of the constant force spring 55 is fixed, the sliding force and the air extrusion force of the piston plate 51 are also constant.

[0039] As Figure 6 shown, four winding wheels 54 are provided, and the four winding wheels 54 are arranged in a "field" shape centered on the center line of the piston plate 51. The four winding wheels 54 arranged in a "field" shape pull the steel wire rope 52 at the same time, so that the piston plate 51 is more balanced in force and is convenient for the piston plate 51 to slide stably.

[0040] As Figure 1 、 Figure 2 、 Figure 5 and Figure 7 shown, a second water storage tank 6 is provided on the right side of the energy storage tank 1, and a negative pressure suppressor 7 is installed at the top of the second water storage tank 6. The left side of the pipe diameter adjusting mechanism 8 penetrates through the second water storage tank 6 and is connected to it, and the right end of the pipe diameter adjusting mechanism 8 is connected to the municipal water supply pipe 9.

[0041] In a further embodiment, the pipe diameter adjustment mechanism 8 includes a fixed plate 81, a rotating plate 82, a driving motor 83, a sliding plate 84, an electric push rod 85, a branch pipe 86, a main pipe 87 and a sealing ring 88. The fixed plate 81 passes through the right side of the second water storage tank 6 and is welded and fixed on the second water storage tank 6. The electric push rod 85 is fixedly installed on the outer side of the fixed plate 81. At the same time, the other end of the electric push rod 85 is connected to the sliding plate 84. A rotating plate 82 is arranged between the fixed plate 81 and the sliding plate 84, and one end of the rotating plate 82 is spline-connected to the driving motor 83. , and the other end of the turntable 82 is rotatably connected to the sliding disk 84, the driving motor 83 is installed inside the fixed disk 81, a plurality of branch pipes 86 of different diameters are opened inside the fixed disk 81, a main pipe 87 is opened inside the turntable 82, and sealing rings 88 are installed at the joints between the branch pipes 86 and the turntable 82. The second water pressure sensor 17 detects the water pressure in the municipal water supply pipe 9, and adjusts the turntable 82 according to the water pressure, so that the branch pipes 86 of the corresponding diameter are connected to the main pipe 87, so as to obtain the required pressure while increasing the water inlet of the municipal water supply pipe 9 as much as possible.

[0042] like Figure 2 As shown, the municipal water supply pipe 9 is connected to the main pipe 87 , and the main pipe 87 is connected to the second water storage tank 6 through the corresponding branch pipe 86 , so that the municipal water supply pipe 9 can directly supply water to the second water storage tank 6 .

[0043] like Figure 2 , Figure 3 and Figure 4 As shown, a plurality of booster pumps 10 are arranged on the front side of the energy storage tank 1, and the rear sides of the plurality of booster pumps 10 are simultaneously connected to the first water pipe 11, and the front sides of the plurality of booster pumps 10 are simultaneously connected to the second water pipe 12, one end of the first water pipe 11 is connected to the bottom of the second water storage tank 6, and the other end of the first water pipe 11 is connected to the second water pipe 12, and a one-way valve 13 is installed at the connection between the first water pipe 11 and the second water pipe 12, the side of the second water pipe 12 away from the booster pump 10 is connected to the first water storage tank 2 through a second connecting pipe, and the end of the second water pipe 12 away from the second connecting pipe is connected to a water quality sampling mechanism 14.

[0044] In a further embodiment, the water quality sampling mechanism 14 includes a sealing shell 141, a slider 142, a test tube hole 144, a test tube 143, a linear motor 145, a sampling tube 146, an electromagnetic shutoff valve 147, an ultraviolet sterilization lamp 148, an electromagnetic switch 149, and a shading plate 1410. The sealing shell 141 is fixed to the bottom of the second water pipe 12, one end of the sampling tube 146 is connected to the second water pipe 12, and the other end of the sampling tube 146 passes through the sealing shell 141 and is connected to the electromagnetic shutoff valve 147. The slider 142 is slidably installed inside the sealing shell 141, and the slider 142 and the sealing shell 141 are connected by A linear motor 145 is connected, a test tube hole 144 is opened on the surface of the slider 142, and a test tube 143 is installed inside the test tube hole 144, an ultraviolet sterilization lamp 148 is installed inside the sealing shell 141, and shading plates 1410 are arranged on both sides of the ultraviolet sterilization lamp 148, and at the same time, the shading plate 1410 and the sealing shell 141 are connected through an electromagnetic switch 149, and the electromagnetic switch 149 pulls the shading plate 1410 to rise and fall to release the moving track of the slider 142, so that the linear motor 145 drives the slider 142 to slide, so that the test tube 143 on the slider 142 passes under the sampling tube 146 in turn to complete the sampling.

[0045] like Figure 3 As shown, the sampling tube 146 is arranged between two shading plates 1410, and the sampling tube 146 is located directly above the test tube 143. The two shading plates 1410 block and seal the test tube 143 under the sampling tube 146, making it easier for the ultraviolet sterilization lamp 148 to sterilize the sampling tube 146 while avoiding interference with other test tubes and causing sampling distortion.

[0046] like Figure 1 and Figure 2 As shown, a water level sensor 15 is installed inside the second water storage tank 6, a first water pressure sensor 16 is installed inside the second water pipe 12, and a second water pressure sensor 17 is installed inside the municipal water supply pipe 9. The control center 19 adjusts the pipe diameter adjustment mechanism 8 according to the water level sensor 15, and then controls the water supply of the municipal water supply pipe 9. At the same time, a suitable branch pipe 86 is selected according to the first water pressure sensor 16 and the second water pressure sensor 17, so that the municipal water supply pipe 9 can increase the water supply as much as possible while ensuring the rated water pressure.

[0047] In a further embodiment, a displacement sensor 18 is fixedly installed on the surface of the piston plate 51, and a control center 19 is fixedly installed on the outside of the energy storage tank 1, and the control center 19 is electrically connected to the boost pump 10, the displacement sensor 18, the water level sensor 15, the first water pressure sensor 16 and the second water pressure sensor 17. The control center 19 determines the position of the piston plate 51 and the amount of water in the first water tank 2 according to the displacement sensor 18, so as to facilitate the boost pump 10 to pressurize the water supply and replenish the first water tank 2 with water.

[0048] When in use, a predetermined amount of water is first stored in the first water storage tank 2 and the second water storage tank 6. When the water consumption peaks during the day, the municipal water supply pipe 9 is closed, the pipe diameter adjustment mechanism 8 is adjusted, the electric push rod 85 pushes the turntable 82 and the sliding plate 84 away from the fixed plate 81, and the driving motor 83 drives the turntable 82 to rotate, so that the main pipe 87 corresponds to the thinner branch pipe 86. Then the electric push rod 85 contracts, and the municipal water supply pipe 9 supplies water through the main pipe 87 and the thinner branch pipe 86. At this time, the pipe diameter cross-sectional area becomes smaller, and the water supply pressure increases. Then the water flows through the second water storage tank 6 and the first water supply tank 8. The water supply pipe 11 and the second water supply pipe 12, during the water supply process, the water supply pressure of the municipal water supply pipe 9 fluctuates to a certain extent, at this time, the constant force spring 55 drives the reel 54 to rotate, and the reel 54 pulls the piston plate 51 up through the wire rope 52, and the piston plate 51 squeezes the gas and transmits it to the first water storage tank 2, so that the water in the first water storage tank 2 balances the water pressure. When the water level sensor 15 detects that the water level in the second water storage tank 6 is low, similarly, the pipe diameter adjustment mechanism 8 is adjusted to reduce the water pressure and increase the water flow of the municipal water supply pipe 9, and then the booster pump 10 is started, and the booster pump 1 0 extracts water from the second water storage tank 6 and pressurizes it to supply water through the second water delivery pipe 12. At night, when the water level is low, the constant force energy storage mechanism 5 pushes the air, and the air pushes the water in the first water storage tank 2 into the second water delivery pipe 12 for water supply. At the same time, the municipal water supply pipe 9 is pressurized by the pipe diameter adjustment mechanism 8 and then supplies water through the second water delivery pipe 12 to supplement the pressure and water volume until the water level sensor 15 and the displacement sensor 18 detect that the water levels in the first water storage tank 2 and the second water storage tank 6 are reduced to a predetermined value. At this time, the booster pump 10 is started, which greatly reduces the pressure of the booster pump 10. Opening and closing frequency and power consumption. During the water supply process, the linear motor 145 pushes the slider 142 to slide, so that the test tube 143 in the test tube hole 144 on the slider 142 moves to the bottom of the sampling tube 146, and the electromagnetic switch 149 is started. The electromagnetic switch 149 pushes the sunshade 1410 to close the sampling tube 146 and the test tube 143 below. After the test tube 143 is sterilized, the electromagnetic shut-off valve 147 is adjusted to allow the second water supply pipe 12 to supply water through the sampling tube 146, and then the water sample drips into the test tube 143. Similarly, the above steps are repeated to complete the sampling.

[0049] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0050] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the protection content of the present invention.

[0051] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A constant pressure variable frequency water supply device, comprising an energy storage tank (1), a first water storage tank (2), a second water storage tank (6), a pipe diameter adjustment mechanism (8), a booster pump (10) and a water quality sampling mechanism (14), characterized in that: A first water storage tank (2) is arranged on the left side of the energy storage tank (1), and the top of the energy storage tank (1) is connected to the top of the first water storage tank (2) via a first connecting pipe (3), and a water vapor separator (4) is installed at the connection point between the first connecting pipe (3) and the first water storage tank (2), and a constant force energy storage mechanism (5) is installed inside the energy storage tank (1); A second water storage tank (6) is arranged on the right side of the energy storage tank (1), and a negative pressure suppressor (7) is installed on the top of the second water storage tank (6). The left side of the pipe diameter adjustment mechanism (8) passes through the second water storage tank (6) and is connected thereto, and the right end of the pipe diameter adjustment mechanism (8) is connected to a municipal water supply pipe (9). The pipe diameter adjustment mechanism (8) comprises a fixed plate (81), a rotating plate (82), a driving motor (83), a sliding plate (84), an electric push rod (85), a branch pipe (86), a main pipe (87) and a sealing ring (88). The fixed plate (81) passes through the right side of the second water storage tank (6) and is welded and fixed on the second water storage tank (6), and the fixed plate (81) passes through the right side of the second water storage tank (6) and is welded and fixed thereto. 1) An electric push rod (85) is fixedly installed on the outside, and the other end of the electric push rod (85) is connected to the sliding disk (84). A rotating disk (82) is arranged between the fixed disk (81) and the sliding disk (84), and one end of the rotating disk (82) is spline-connected to the driving motor (83), and the other end of the rotating disk (82) is rotatably connected to the sliding disk (84). The driving motor (83) is installed inside the fixed disk (81), and a plurality of branch pipes (86) of different diameters are opened inside the fixed disk (81). A main pipe (87) is opened inside the rotating disk (82), and sealing rings (88) are installed at the joints between the branch pipes (86) and the rotating disk (82); A plurality of booster pumps (10) are arranged on the front side of the energy storage tank (1). The rear sides of the plurality of booster pumps (10) are simultaneously communicated with a first water delivery pipe (11), and the front sides of the plurality of booster pumps (10) are simultaneously communicated with a second water delivery pipe (12). One end of the first water delivery pipe (11) is communicated with the bottom of a second water storage tank (6), and the other end of the first water delivery pipe (11) is communicated with the second water delivery pipe (12). A one-way valve (13) is installed at the communication part of the first water delivery pipe (11) and the second water delivery pipe (12). The side of the second water delivery pipe (12) away from the booster pump (10) is communicated with a first water storage tank (2) through a second connecting pipe, and one end of the second water delivery pipe (12) away from the second connecting pipe is communicated with a water quality sampling mechanism (14). The water quality sampling mechanism (14) includes a sealed shell (141), a slider (142), a test tube hole (144), a test tube (143), a linear motor (145), a sampling pipe (146), an electromagnetic shut-off valve (147), an ultraviolet germicidal lamp (148), an electromagnetic switch (149), and a light shielding plate (1410). The sealed shell (141) is fixed at the bottom of the second water delivery pipe (12). One end of the sampling pipe (146) is communicated with the second water delivery pipe (12), and the other end of the sampling pipe (146) penetrates through the sealed shell (141) and is communicated with the electromagnetic shut-off valve (147). A slider (142) is slidably installed inside the sealed shell (141), and the slider (142) is connected with the sealed shell (141) through a linear motor (145). A test tube hole (144) is formed on the surface of the slider (142), and a test tube (143) is installed inside the test tube hole (144). An ultraviolet germicidal lamp (148) is installed inside the sealed shell (141), and light shielding plates (1410) are arranged on both sides of the ultraviolet germicidal lamp (148). At the same time, the light shielding plates (1410) are connected with the sealed shell (141) through an electromagnetic switch (149). The sampling pipe (146) is arranged between the two light shielding plates (1410), and the sampling pipe (146) is located directly above the test tube (143).

2. The constant pressure variable frequency water supply equipment according to claim 1, characterized in that: The constant force energy storage mechanism (5) includes a piston plate (51), a steel wire rope (52), a connecting shaft (53), a winding wheel (54), and a constant force spring (55). The piston plate (51) is slidably installed inside the energy storage tank (1), and a connecting shaft (53) is fixedly installed at the top of the energy storage tank (1). A winding wheel (54) is rotatably installed on the outer side of the connecting shaft (53), and the winding wheel (54) is connected with the piston plate (51) through a steel wire rope (52). The inner side of the constant force spring (55) is fixedly installed on the connecting shaft (53), and the outer side of the constant force spring (55) is fixedly installed on the winding wheel (54).

3. The constant pressure variable frequency water supply equipment according to claim 2, characterized in that: Four winding wheels (54) are provided, and the four winding wheels (54) are arranged in a "field" shape with the center line of the piston plate (51) as the center.

4. The constant pressure variable frequency water supply equipment according to claim 1, characterized in that: The municipal water supply pipe (9) is communicated with a main pipe (87), and the main pipe (87) is communicated with a second water storage tank (6) through corresponding branch pipes (86).

5. The constant pressure variable frequency water supply equipment according to claim 2, characterized in that: A water level sensor (15) is installed inside the second water storage tank (6), a first water pressure sensor (16) is installed inside the second water delivery pipe (12), and a second water pressure sensor (17) is installed inside the municipal water supply pipe (9).

6. The constant pressure variable frequency water supply equipment according to claim 5, characterized in that: A displacement sensor (18) is fixedly mounted on the surface of the piston plate (51), a control center (19) is fixedly mounted on the outside of the energy storage tank (1), and the control center (19) is electrically connected to the booster pump (10), the displacement sensor (18), the water level sensor (15), the first water pressure sensor (16), and the second water pressure sensor (17).

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