Timing control valve device of direct drinking water circulation system

Abstract

The utility model relates to the field of pipeline direct drinking water circulation, and discloses a direct drinking water circulation system timing control valve device which comprises a pure water tank, a water outlet pipe, a variable frequency water supply pump, a water supply pipe, a user water supply branch pipe, a first water return pipe, a water liquid filtering mechanism, a second water return pipe, a pressure sensor, an electric valve and a controller. The variable-frequency water supply pump has the advantages and effects that the variable-frequency water supply pump can be controlled to be started and closed regularly when no user uses water or the water consumption is reduced, regular circulation of direct drinking water is guaranteed, the working time of the variable-frequency water supply pump is shortened, the power consumption of the variable-frequency water supply pump is also reduced, and the effects of saving energy and reducing consumption are achieved; and in the process that the direct drinking water flows back to the pure water tank, impurities in the water can be intercepted and filtered and are prevented from entering the pure water tank, so that the frequency of cleaning the pure water tank can be reduced, and the probability that the impurities are sucked into the variable-frequency water supply pump to increase the damage of the variable-frequency water supply pump is also greatly reduced.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline direct drinking water circulation, and in particular to a timing control valve device for a direct drinking water circulation system. Background Art

[0002] The current direct drinking water from pipelines in my country is to install water purifier rooms in residential areas (hotels, office buildings), use membrane technology to deeply purify tap water through water purification equipment, and then enter the pure water tank. The water in the pure water tank is supplied to each user and water point through the water supply pipe through the variable frequency water supply pump. Users can drink directly by turning on the tap. A return pipe is connected to the end of the water supply point, and the water returns to the pure water tank, thus forming a closed circulation pipeline, so that no dead water is formed, ensuring the safety and freshness of direct drinking water.

[0003] In the prior art, during the circulation supply of direct drinking water, the variable frequency water supply pump must work continuously for 24 hours to allow the direct drinking water to circulate continuously to ensure the freshness of the water quality. In this way, the non-stop operation of the variable frequency water supply pump will consume a lot of electricity and have poor energy-saving effect. Therefore, we propose a timing control valve device for a direct drinking water circulation system to solve the above problem. Utility Model Content

[0004] In order to circulate the drinking water during the period of the present application, the variable frequency water supply pump must work continuously for 24 hours to keep the drinking water circulating to ensure the freshness of the water quality. In this way, the non-stop operation of the variable frequency water supply pump will consume a lot of electricity and have poor energy-saving effect. To solve the problem, the present application provides a timing control valve device for a direct drinking water circulation system.

[0005] The above technical purpose of the present application is achieved through the following technical solutions: a timing control valve device for a direct drinking water circulation system, comprising a pure water tank, a water outlet pipe, a variable frequency water supply pump, a water supply pipe, a user water supply branch pipe, a first return water pipe, a water liquid filtering mechanism, a second return water pipe, a pressure sensor, an electric valve and a controller, one end of the water outlet pipe is fixedly connected to the water outlet end of the pure water tank, the other end of the water outlet pipe is fixedly connected to the inlet end of the variable frequency water supply pump, one end of the water supply pipe is fixedly connected to the discharge end of the variable frequency water supply pump, and the number of user water supply branches is set to Multiple, multiple user water supply branches are fixedly connected to the water supply pipe and communicate with each other, one end of the first return pipe is fixedly connected to the end of the water supply pipe away from the variable frequency water supply pump, the water filtering mechanism is arranged on the pure water tank, one end of the first return pipe away from the water supply pipe and one end of the second return pipe are both connected to the water filtering mechanism, the other end of the second return pipe extends into the pure water tank, the pressure sensor and the electric valve are fixedly installed on the first return pipe, the controller is arranged on the water filtering mechanism, and the variable frequency water supply pump, the pressure sensor, the electric valve and the controller are electrically connected.

[0006] By adopting the above technical scheme, the pure water tank is used to hold direct drinking water, and the variable frequency water supply pump can be used to control the direct drinking water inside the pure water tank to circulate through the water outlet pipe, the variable frequency water supply pump, the water supply pipe, the first return water pipe, the water liquid filtering mechanism and the second return water pipe in sequence. The pressure sensor can be used to monitor the water pressure inside the first return water pipe in real time, and the electric valve can be used to control the on and off of the water flow inside the first return water pipe. The controller is used to control the start and stop of the variable frequency water supply pump and the opening and closing of the electric valve. The user's water supply branch pipe is used to transport direct drinking water to the user's house, and the water liquid filtering mechanism is used to intercept and filter impurities in the direct drinking water, which can effectively prevent the direct drinking water from carrying impurities back to the water outlet tank.

[0007] Optionally, the water filtering mechanism includes a filter cartridge and a filter screen, the filter cartridge is located above the pure water tank, the filter screen is fixedly installed in the filter cartridge, one end of the first return pipe away from the water supply pipe extends into the filter cartridge, and one end of the second return pipe is connected to the interior of the filter cartridge.

[0008] By adopting the above technical solution, the filter net is used to intercept and filter impurities carried in direct drinking water.

[0009] Optionally, the filter screen is in the shape of a bowl with a depression in the middle.

[0010] By adopting the above technical solution, the filtering area for direct drinking water can be increased, the clogging of filter holes on the filter net by impurities can be reduced, and the effective filtering characteristics of the filter net can be guaranteed.

[0011] Optionally, a drain pipe is fixedly installed at the bottom center of the filter cartridge, the top end of the drain pipe extends into the filter cartridge and passes through the filter screen, and a drain valve is fixedly installed on the drain pipe.

[0012] By adopting the above technical solution, the filtered impurities can be discharged out of the filter cartridge.

[0013] Optionally, four legs symmetrically distributed in pairs are fixedly mounted on the bottom of the filter cartridge, and the bottom ends of the four legs are fixedly connected to the top of the pure water tank.

[0014] By adopting the above technical solution, the filter cartridge can be stably supported.

[0015] Optionally, a motor is fixedly installed on the top of the filter cartridge, the output shaft end of the motor extends into the filter cartridge and is fixedly installed with a vertical axis, the bottom end of the vertical axis is fixedly installed with an inclined connecting rod, and an arc scraper is fixedly installed at the end of the connecting rod away from the vertical axis, and the arc scraper has a sliding contact with the upper surface of the filter net.

[0016] By adopting the above technical solution, the motor is used to control the rotation of the vertical axis, the connecting rod and the arc scraper. The arc scraper can be used to scrape the impurities on the upper surface of the filter screen to move them, allowing the impurities to enter the sewage pipe more comprehensively and thoroughly.

[0017] Optionally, an inspection port located above the filter net is opened on the front inner wall of the filter cartridge, and an inspection door is fixedly installed on the outer wall of the filter cartridge by screws, and the inspection door is adapted to the inspection port.

[0018] By adopting the above technical solution, it is convenient to inspect and maintain the parts inside the filter cartridge.

[0019] Optionally, the inspection door is made of transparent tempered glass.

[0020] By adopting the above technical solution, it is convenient to observe the interior of the filter cartridge.

[0021] The present application includes at least one of the following beneficial technical effects:

[0022] The present application utilizes the coordinated effects of a variable frequency water supply pump, a pressure sensor, an electric valve and a controller to control the variable frequency water supply pump to start and shut down at regular intervals when no user is using water or the water consumption is reduced, thereby ensuring the regular circulation of direct drinking water, reducing the working time of the variable frequency water supply pump, and reducing the power consumption of the variable frequency water supply pump, thereby achieving the effect of energy saving and consumption reduction.

[0023] The present application utilizes a water filtration mechanism composed of a filter cartridge and a filter net. When the direct drinking water flows back to the pure water tank, the impurities in the water can be intercepted and filtered to prevent the impurities from entering the pure water tank. This can reduce the number of times the pure water tank is cleaned, and also greatly reduces the probability of impurities being sucked into the variable frequency water supply pump and increasing the probability of damage to the variable frequency water supply pump. This solves the problem of impurities flowing back into the pure water tank along with the direct drinking water when there are impurities in the water supply pipeline.

[0024] The present application utilizes a motor to control the arc scraper to rotate around the vertical axis. The arc scraper can be used to scrape the impurities on the surface of the filter net to move, thereby allowing the impurities to enter the sewage pipe more comprehensively and thoroughly. By opening the sewage valve, the sewage carrying impurities can be discharged from the sewage pipe, thereby achieving the effect of quickly cleaning and discharging the impurities on the filter net. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of this embodiment.

[0026] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure of part A.

[0027] Figure 3 It is a schematic diagram of the main cross-sectional structure of the water filter mechanism.

[0028] Figure 4 It is a three-dimensional structural diagram of the filter.

[0029] Figure 5 It is a control block diagram of this embodiment.

[0030] In the figure, 1. pure water tank; 2. water outlet pipe; 3. variable frequency water supply pump; 4. water supply pipe; 5. user water supply branch pipe; 6. first return pipe; 7. second return pipe; 8. pressure sensor; 9. electric valve; 10. controller; 11. filter cartridge; 12. filter screen; 13. drain pipe; 14. drain valve; 15. support leg; 16. motor; 17. vertical axis; 18. connecting rod; 19. arc scraper; 20. inspection door. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-5 This application is described in further detail.

[0032] The embodiment of the present application discloses a timing control valve device for a direct drinking water circulation system, comprising a pure water tank 1, a water outlet pipe 2, a variable frequency water supply pump 3, a water supply pipe 4, a user water supply branch pipe 5, a first return water pipe 6, a water filter mechanism, a second return water pipe 7, a pressure sensor 8, an electric valve 9 and a controller 10, wherein:

[0033] One end of the water outlet pipe 2 is fixedly connected to the water outlet end of the pure water tank 1, the other end of the water outlet pipe 2 is fixedly connected to the inlet end of the variable frequency water supply pump 3, one end of the water supply pipe 4 is fixedly connected to the discharge end of the variable frequency water supply pump 3, the number of user water supply branch pipes 5 is set to multiple, and the multiple user water supply branch pipes 5 are all fixedly connected to the water supply pipe 4 and communicated, one end of the first return water pipe 6 is fixedly connected to the end of the water supply pipe 4 away from the variable frequency water supply pump 3, a water filtering mechanism is arranged on the pure water tank 1, one end of the first return water pipe 6 away from the water supply pipe 4 and one end of the second return water pipe 7 are both connected to the water filtering mechanism, the water filtering mechanism It includes a filter cartridge 11 and a filter screen 12. The filter cartridge 11 is located above the pure water tank 1. The filter screen 12 is fixedly installed in the filter cartridge 11. One end of the first return water pipe 6 away from the water supply pipe 4 extends into the filter cartridge 11. One end of the second return water pipe 7 is connected to the inside of the filter cartridge 11. The filter screen 12 is in the shape of a bowl with a concave middle. The other end of the second return water pipe 7 extends into the pure water tank 1. The pressure sensor 8 and the electric valve 9 are both fixedly installed on the first return water pipe 6. The controller 10 is arranged on the water filtering mechanism. The variable frequency water supply pump 3, the pressure sensor 8, the electric valve 9 and the controller 10 are electrically connected.

[0034] Through the above structure, when the timing control valve device of the direct drinking water circulation system provided by the present application is in use, the operation of the variable frequency water supply pump 3 can be used to make the direct drinking water inside the pure water tank 1 pass through the outlet pipe 2, the variable frequency water supply pump 3, the water supply pipe 4, and the first return water pipe 6 in sequence to enter the filter cartridge 11. The water entering the filter cartridge 11 passes through the filter holes on the filter net 12 and then flows back to the pure water tank 1 from the second return water pipe 7, thereby achieving the effect of direct drinking water circulation. If there are impurities inside the water supply pipeline, the filter net 12 can be used to intercept and filter the impurities carried in the direct drinking water to prevent the impurities from entering the pure water tank 1, which can reduce the number of times the pure water tank 1 is cleaned, and also greatly reduce the probability of impurities being sucked into the variable frequency water supply pump 3 and increasing the damage of the variable frequency water supply pump 3. The direct drinking water can be transported to the user's home through the user's water supply branch pipe 5, and the direct drinking water can be released for use by turning on the faucet at home. The water pressure inside the first return water pipe 6 can be monitored in real time by using the pressure sensor 8. When the number of users decreases or no one uses water, the water flow in the first water return pipe 6 accelerates and the pressure increases. At this time, the pressure sensor 8 transmits the monitored water pressure data inside the first water return pipe 6 to the controller 10. The controller 10 controls the electric valve 9 and the variable frequency water supply pump 3 to open once at a certain time according to the set program (for example, the electric valve 9 and the variable frequency water supply pump 3 are controlled to open once every 1-2 hours and then closed after 5-10 minutes), so that the direct drinking water returns to the pure water tank 1, thus forming a timed cycle. The variable frequency water supply pump 3 starts and closes regularly when no user uses water, reducing the working time of the variable frequency water supply pump 3 and the power consumption of the variable frequency water supply pump 3, thereby achieving the effect of energy saving and consumption reduction. It should be noted that the control method of the variable frequency water supply pump 3 and the electric valve 9 is automatically controlled by the controller 10, and the control circuit of the controller 10 can be realized by simple programming by technicians in this field, which belongs to the common knowledge in this field, so the control method and circuit connection are not explained in detail in this article.

[0035] In this embodiment, a sewage pipe 13 is fixedly installed at the bottom center of the filter cartridge 11, and the top of the sewage pipe 13 extends into the filter cartridge 11 and passes through the filter screen 12. A sewage valve 14 is fixedly installed on the sewage pipe 13, and four supporting legs 15 symmetrically distributed in pairs are fixedly installed at the bottom of the filter cartridge 11. The bottom ends of the four supporting legs 15 are fixedly connected to the top of the pure water tank 1, and a motor 16 is fixedly installed on the top of the filter cartridge 11. The output shaft end of the motor 16 extends into the filter cartridge 11 and is fixedly installed with a vertical shaft 17. The bottom end of the vertical shaft 17 is fixedly installed with an inclined connecting rod 18, and the end of the connecting rod 18 away from the vertical shaft 17 is fixedly installed with an arc scraper 19, and the arc scraper 19 has a sliding contact with the upper surface of the filter screen 12. It should be noted that the motor 16 can be purchased on the market, and the motor 16 is equipped with a power supply. Its line connection and control method belong to the mature technology in this field, so it will not be repeated in this article.

[0036] Through the above-mentioned structure, when the timing control valve device of the direct drinking water circulation system provided by the present application is in use, the motor 16 is controlled to operate, and the motor 16 drives the vertical shaft 17, the connecting rod 18 and the arc scraper 19 to rotate. The arc scraper 19 can be used to scrape the impurities on the upper surface of the filter screen 12 to move the impurities, thereby allowing the impurities to enter the sewage pipe 13 more comprehensively and thoroughly. By opening the sewage valve 14, the sewage carrying impurities can be discharged from the sewage pipe 13, thereby achieving the effect of quickly cleaning and discharging the impurities on the filter screen 12.

[0037] In this embodiment, an inspection port located above the filter screen 12 is opened on the front inner wall of the filter cartridge 11, and an inspection door 20 is fixedly installed on the outer wall of the filter cartridge 11 by screws. The inspection door 20 is adapted to the inspection port and is made of transparent tempered glass.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A timing control valve device for a direct drinking water circulation system, characterized in that: The invention comprises a pure water tank (1), a water outlet pipe (2), a variable frequency water supply pump (3), a water supply pipe (4), a user water supply branch pipe (5), a first water return pipe (6), a water liquid filtering mechanism, a second water return pipe (7), a pressure sensor (8), an electric valve (9) and a controller (10), wherein one end of the water outlet pipe (2) is fixedly connected to the water outlet end of the pure water tank (1), the other end of the water outlet pipe (2) is fixedly connected to the inlet end of the variable frequency water supply pump (3), one end of the water supply pipe (4) is fixedly connected to the discharge end of the variable frequency water supply pump (3), the number of the user water supply branch pipes (5) is set to be multiple, and the multiple user water supply branch pipes (5) are all fixedly connected to and communicated with the water supply pipe (4). One end of the first water return pipe (6) is fixedly connected to one end of the water supply pipe (4) away from the variable frequency water supply pump (3); the water liquid filtering mechanism is arranged on the pure water tank (1); one end of the first water return pipe (6) away from the water supply pipe (4) and one end of the second water return pipe (7) are both connected to the water liquid filtering mechanism; the other end of the second water return pipe (7) extends into the pure water tank (1); the pressure sensor (8) and the electric valve (9) are both fixedly mounted on the first water return pipe (6); the controller (10) is arranged on the water liquid filtering mechanism; and the variable frequency water supply pump (3), the pressure sensor (8), the electric valve (9) and the controller (10) are electrically connected.

2. A timing control valve device for a direct drinking water circulation system according to claim 1, characterized in that: The water filter mechanism comprises a filter cartridge (11) and a filter screen (12); the filter cartridge (11) is located above the pure water tank (1); the filter screen (12) is fixedly installed in the filter cartridge (11); one end of the first water return pipe (6) away from the water supply pipe (4) extends into the filter cartridge (11); and one end of the second water return pipe (7) is connected to the interior of the filter cartridge (11).

3. A timing control valve device for a direct drinking water circulation system according to claim 2, characterized in that: The filter screen (12) is in the shape of a bowl with a depression in the middle.

4. A timing control valve device for a direct drinking water circulation system according to claim 2, characterized in that: A sewage discharge pipe (13) is fixedly mounted at the center of the bottom of the filter cartridge (11); the top end of the sewage discharge pipe (13) extends into the filter cartridge (11) and penetrates the filter screen (12); and a sewage discharge valve (14) is fixedly mounted on the sewage discharge pipe (13).

5. A timing control valve device for a direct drinking water circulation system according to claim 2, characterized in that: Four supporting legs (15) are fixedly mounted on the bottom of the filter cartridge (11) and are symmetrically distributed in pairs, and the bottom ends of the four supporting legs (15) are fixedly connected to the top of the pure water tank (1).

6. A timing control valve device for a direct drinking water circulation system according to claim 2, characterized in that: A motor (16) is fixedly mounted on the top of the filter cartridge (11); an output shaft end of the motor (16) extends into the filter cartridge (11) and is fixedly mounted with a vertical shaft (17); an inclined connecting rod (18) is fixedly mounted on the bottom end of the vertical shaft (17); an arc-shaped scraper (19) is fixedly mounted on one end of the connecting rod (18) away from the vertical shaft (17); and the arc-shaped scraper (19) is in sliding contact with the upper surface of the filter screen (12).

7. A timing control valve device for a direct drinking water circulation system according to claim 2, characterized in that: An inspection opening located above the filter screen (12) is provided on the front inner wall of the filter cartridge (11), and an inspection door (20) is fixedly mounted on the outer wall of the filter cartridge (11) by means of screws, the inspection door (20) being compatible with the inspection opening.

8. A timing control valve device for a direct drinking water circulation system according to claim 7, characterized in that: The inspection door (20) is made of transparent tempered glass.

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