High-temperature sterilization electromagnetic valve and high-temperature sterilization system comprising same

Abstract

The utility model provides a high-temperature sterilization solenoid valve and a high-temperature sterilization system comprising the same, the high-temperature sterilization solenoid valve comprises a valve body, the valve body comprises a first water port and a water nozzle which are communicated with each other, the water nozzle is of a columnar structure provided with a circulation cavity, the valve body further comprises a first flow channel, the first flow channel is annular, and the first flow channel is tightly attached to and surrounds the water nozzle; the valve body further comprises a second water opening, the second water opening is communicated with the first flow channel and is far away from the first water opening, and the first water opening and the second water opening are used for circulating high-temperature hot water. One of the first water opening and the second water opening is used for introducing high-temperature hot water, the other one is used for discharging the high-temperature hot water, the high-temperature hot water can transfer heat to the water nozzle after entering the first flow channel, the water nozzle is heated under the action of the high-temperature hot water, and the purpose of killing bacteria attached to the water nozzle is achieved through the high temperature of the water nozzle.

Description

Technical Field

[0001] This utility model relates to the field of water purifiers, and in particular to a high-temperature sterilization solenoid valve and a high-temperature sterilization system including the solenoid valve. Background Technology

[0002] Commercial water purifiers are crucial drinking water facilities in public places (such as high-speed rail stations, airports, and hospitals), and the quality of the water they produce directly affects the health and safety of users. Currently, commercial water purifiers typically use core processes such as reverse osmosis (RO) and ultrafiltration (UF) to deeply purify raw water, and utilize ultraviolet (UV) sterilization or ozone disinfection technology to sterilize internal pipes and water storage units.

[0003] However, when purified room temperature water passes through the terminal water outlet solenoid valve and the faucet exposed to the air, the faucet, as the final water outlet component, is constantly exposed to the air. Bacteria and microorganisms floating in the air easily adhere to the inner and outer surfaces of the faucet, forming a biofilm, especially in humid environments, making the faucet a continuous source of pollution. After long-term use, residual water stains and organic matter deposits inside the faucet and solenoid valve create a breeding ground for bacteria, leading to excessive total bacterial counts in the water and even posing a risk of pathogenic microorganisms such as E. coli and Legionella. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of existing commercial water purifier terminal water taps, which are prone to bacterial growth due to exposure to air, leading to a decline in drinking water quality and affecting health. The present invention provides a high-temperature sterilization solenoid valve and a high-temperature sterilization system including the solenoid valve.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] This utility model provides a high-temperature sterilization solenoid valve, which includes a valve body. The valve body includes a first water inlet and a water nozzle that are interconnected. The water nozzle is a cylindrical structure with a flow cavity. The valve body also includes a first flow channel. The first flow channel is annular and is arranged close to and surrounds the water nozzle. The first flow channel is connected between the first water inlet and the water nozzle. The valve body also includes a second water inlet. The second water inlet is connected to the first flow channel and is arranged away from the first water inlet. The first water inlet and the second water inlet are used to flow high-temperature hot water.

[0007] In this design, one of the first and second water inlets is used to introduce high-temperature hot water, and the other is used to discharge high-temperature hot water. After the high-temperature hot water enters the first flow channel, it will transfer heat to the water tap. The water tap will heat up under the action of the high-temperature hot water, and the high temperature of the water tap will kill the bacteria attached to the water tap.

[0008] Preferably, the first inlet is located at the bottom of the first flow channel, and the second inlet is located at the top of the first flow channel.

[0009] In this solution, the distance between the first and second water inlets is increased by the above structure, expanding the range through which the high-temperature hot water flows and increasing the flow time of the high-temperature hot water in the first flow channel, thereby achieving a better sterilization effect.

[0010] Preferably, the valve body further includes a piston assembly for opening and closing the water nozzle, and an annular second flow channel is provided and connected between the second water nozzle and the first flow channel, the second flow channel being disposed close to and surrounding the piston assembly.

[0011] In this design, the piston assembly is briefly exposed to outside air when the tap is opened or closed, which can easily lead to bacterial growth over time. Sterilizing the piston assembly with high-temperature hot water after the tap has been sterilized can further improve the safety of drinking water.

[0012] Preferably, a seal is provided between the piston assembly and the water nozzle, one end of the seal being connected to the piston assembly, and the other end of the seal abutting against and covering the flow cavity of the water nozzle.

[0013] In this solution, the sealing between the piston assembly and the water nozzle is improved, reducing the risk of leakage.

[0014] Preferably, the valve body further includes a positioning ring disposed within the first flow channel. The positioning ring includes an outer ring and an inner ring, the outer ring and the inner ring being concentric. The outer edge of the outer ring abuts against the inner wall surface of the first flow channel, and the inner edge of the inner ring abuts against the outer wall surface of the water nozzle.

[0015] In this solution, the positioning ring is used in conjunction with the water nozzle to improve the coaxiality of the water nozzle during installation, making the heat transfer of the annular first flow channel to the water nozzle more uniform and avoiding localized low temperatures that could affect the sterilization effect.

[0016] Preferably, the first water inlet is used to introduce high-temperature hot water, and the second water inlet is used to discharge high-temperature hot water.

[0017] In this design, the first water inlet is positioned lower than the second water inlet in the vertical direction, so that hot water fills the first flow channel from low to high and then overflows from the second water inlet, preventing the formation of sterilization dead zones and further improving the sterilization effect.

[0018] Preferably, the first inlet is equipped with a counterflow valve, which allows unidirectional flow toward the first flow channel.

[0019] In this solution, a backflow valve is installed to prevent backflow of water from the high-temperature sterilization solenoid valve, which could carry bacteria into the water supply pipeline.

[0020] Preferably, the second water inlet is used to introduce high-temperature hot water, the first water inlet is used to discharge high-temperature hot water, and the valve body further includes a third water inlet, which connects the first flow channel and the water purification equipment, and the third water inlet is used to provide drinking water.

[0021] In this design, the first and third water inlets are lower than the second water inlet in the height direction, so that the high-temperature hot water flows from high to low through the annular first flow channel under the action of gravity, transferring heat to the water tap. The water tap heats up under the action of the high-temperature hot water to achieve the purpose of sterilization, and then the high-temperature hot water flows out through the first or second water inlet.

[0022] This utility model also provides a high-temperature sterilization system, which includes the high-temperature sterilization solenoid valve as described above, and the high-temperature sterilization system also includes a water purification device, a water heater and a sewage discharge component.

[0023] In this design, one of the first and second water inlets is used to introduce high-temperature hot water, and the other is used to discharge high-temperature hot water. After the high-temperature hot water enters the first flow channel, it will transfer heat to the water tap. The water tap will heat up under the action of the high-temperature hot water, and the high temperature of the water tap will kill the bacteria attached to the water tap.

[0024] Preferably, the first water inlet is connected to the water purification device, the second water inlet is connected to the drain assembly, the water purification device is used to provide drinking water, the drain assembly is used to discharge sterilized high-temperature hot water, and the water heater is connected to the water purification device, the water heater is used to provide high-temperature hot water; or, the first water inlet is connected to the water heater, the second water inlet is connected to the drain assembly, the third water inlet is connected to the water purification device, the water heater is used to provide high-temperature hot water, the drain assembly is used to discharge sterilized high-temperature hot water, the water purification device is used to provide drinking water, and the water purification device is connected to the drain assembly.

[0025] In this design, the water heater is connected to the water purification system, allowing the high-temperature hot water provided by the water heater to share the same inlet channel (first inlet) with the purified drinking water provided by the water purification system. This eliminates the need for a separate high-temperature hot water flow channel, simplifying the structure. The high-temperature hot water flowing through the water purification system also sterilizes it. Simultaneously, by connecting the first inlet to the water heater as a dedicated high-temperature hot water flow channel and adding a third inlet connected to the water purification system, a small amount of high-temperature hot water can enter the third inlet and flow back to the water purification system. After sterilizing the water purification system, the high-temperature hot water is discharged through a drain assembly connected to the water purification system.

[0026] The positive and progressive effects of this utility model are as follows:

[0027] The present invention relates to a high-temperature sterilization solenoid valve and a high-temperature sterilization system including the solenoid valve. One of the first water inlet and the other of the second water inlet are used to introduce high-temperature hot water and to discharge high-temperature hot water. After the high-temperature hot water enters the first flow channel, it will transfer heat to the water tap. The water tap will heat up under the action of the high-temperature hot water, and the high temperature of the water tap will kill the bacteria attached to the water tap. Attached Figure Description

[0028] Figure 1 This is a perspective view of the high-temperature sterilization solenoid valve of Embodiment 1 of this utility model.

[0029] Figure 2 This is a cross-sectional view of the high-temperature sterilization solenoid valve of Embodiment 1 of this utility model.

[0030] Figure 3 This is a perspective view of the high-temperature sterilization solenoid valve of Embodiment 2 of this utility model.

[0031] Figure 4 This is a cross-sectional view of the high-temperature sterilization solenoid valve of Embodiment 2 of this utility model.

[0032] Figure 5 This is a structural diagram of the high-temperature sterilization system of Embodiment 1 of this utility model.

[0033] Figure 6 This is a structural diagram of the high-temperature sterilization system of Embodiment 2 of this utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] High-temperature sterilization solenoid valve 1000

[0036] Valve body 1

[0037] First waterway 101

[0038] Water tap 102

[0039] First flow channel 103

[0040] Second waterway 104

[0041] Piston assembly 105

[0042] Piston rod 1051

[0043] Electromagnetic device 1052

[0044] Second flow channel 106

[0045] Seal 107

[0046] Positioning ring 108

[0047] 109 Reverse flow valve

[0048] Third waterway 110

[0049] Water purification equipment 2

[0050] Pretreatment filter element 201

[0051] Water inlet solenoid valve 202

[0052] Water pump 203

[0053] Membrane element 204

[0054] Post-treatment filter element 205

[0055] Ultraviolet sterilization device 206

[0056] Water heater 3

[0057] Sewage discharge component 4

[0058] Circulation pump 5

[0059] First solenoid valve 6

[0060] Second solenoid valve 7

[0061] Third solenoid valve 8

[0062] Fourth solenoid valve 9

[0063] Fifth solenoid valve 10 Detailed Implementation

[0064] Two preferred embodiments are described below, along with accompanying drawings, to illustrate the present invention more clearly and completely.

[0065] Example 1

[0066] like Figure 1 and Figure 2 As shown, this embodiment provides a high-temperature sterilization solenoid valve 1000, which includes a valve body 1. The valve body 1 includes a first water inlet 101 and a water nozzle 102 that are interconnected. The water nozzle 102 is a columnar structure with a flow cavity. The valve body 1 also includes a first flow channel 103, which is annular and is disposed close to and surrounds the water nozzle 102. The first flow channel 103 is connected between the first water inlet 101 and the water nozzle 102. The valve body 1 also includes a second water inlet 104, which is connected to the first flow channel 103 and is disposed away from the first water inlet 101. The first water inlet 101 is used to introduce high-temperature hot water and drinking water, and the second water inlet 104 is used to discharge high-temperature hot water.

[0067] Thus, the first water outlet 101 and the second water outlet 104 are used to introduce high-temperature hot water and to discharge high-temperature hot water. After the high-temperature hot water enters the first flow channel 103, it will transfer heat to the water tap 102. The water tap 102 will heat up under the action of the high-temperature hot water, and the high temperature of the water tap 102 will kill the bacteria attached to the water tap 102.

[0068] The first inlet 101 is disposed on the side wall at the bottom of the first flow channel 103, and the second inlet 104 may also be disposed on the side wall of the first flow channel 103 opposite to the first inlet 101. Preferably, as shown... Figure 2 As shown, in this embodiment, the second water inlet 104 is located at the top of the first flow channel 103. The first water inlet 101 is positioned lower than the second water inlet 104 in the height direction, so that the high-temperature hot water fills the first flow channel 103 from low to high and then overflows from the second water inlet 104, preventing the formation of sterilization dead zones and further improving the sterilization effect.

[0069] Specifically, such as Figure 2 As shown, the valve body 1 also includes a piston assembly 105, which is used to open and close the water nozzle 102. The piston assembly 105 includes a piston rod 1051 and an electromagnetic device 1052. The piston rod 1051 is nested in the electromagnetic device 1052 and performs reciprocating motion under the control of the electromagnetic device 1052 to control the opening and closing of the water nozzle 102.

[0070] An annular second flow channel 106 is provided and connected between the second water inlet 104 and the first flow channel 103. The second flow channel 106 is arranged close to and surrounds the piston assembly 105. Since the piston assembly 105 is briefly exposed to outside air when the water inlet 102 is opened or closed, bacteria can easily grow with long-term use.

[0071] like Figure 2 As shown by the middle arrow, after the high-temperature hot water sterilizes the water tap 102 through the first flow channel 103 from bottom to top, it first flows through the end of the piston rod 1051 facing the water tap 102 and then flows through the end of the piston rod 1051 away from the water tap 102, thereby achieving sterilization of the piston assembly 105 by the high-temperature hot water in the second flow channel 106. This structure can further improve the safety of drinking water.

[0072] Specifically, such as Figure 2 As shown, a seal 107 is provided between the piston rod 1051 and the water nozzle 102. One end of the seal 107 is connected to the piston rod 1051, and the other end of the seal 107 abuts against and covers the flow cavity of the water nozzle 102.

[0073] This improves the sealing between the piston assembly 105 and the water nozzle 102, reducing the risk of leakage.

[0074] In this embodiment, the seal 107 is a cylindrical rubber part, and the seal 107 is snapped together with the piston rod 1051.

[0075] Specifically, such as Figure 2 As shown, the valve body 1 also includes a positioning ring 108, which is disposed in the first flow channel 103. The positioning ring 108 includes an outer ring and an inner ring, which are concentric. The outer edge of the outer ring abuts against the inner wall of the first flow channel 103, and the inner edge of the inner ring abuts against the outer wall of the water nozzle 102.

[0076] In this way, by cooperating with the positioning ring 108 and the water nozzle 102, the coaxiality of the water nozzle 102 during installation is improved, and the heat transfer of the annular first flow channel 103 to the water nozzle 102 is more uniform, avoiding local low temperature from affecting the sterilization effect.

[0077] Specifically, such as Figure 2 As shown, the first water inlet 101 is equipped with a counterflow valve 109, which allows for unidirectional flow towards the first flow channel 103.

[0078] Thus, by setting up the backflow valve 109, the backflow of water in the high-temperature sterilization solenoid valve 1000 is prevented from carrying bacteria into the water supply pipeline.

[0079] like Figure 5 As shown, this embodiment also provides a high-temperature sterilization system, which includes the high-temperature sterilization solenoid valve 1000 as described above. The high-temperature sterilization system also includes a water purification device 2, a water heater 3, and a drain assembly 4. A first water inlet 101 is connected to the water purification device 2, and a second water inlet 104 is connected to the drain assembly 4. The water purification device 2 is used to provide drinking water. The water purification device 2 includes a pretreatment filter element 201, an inlet solenoid valve 202, a water pump 203, a membrane element 204, a posttreatment filter element 205, and an ultraviolet sterilization device 206 connected sequentially along the water flow direction. The water heater 3 is connected between the membrane element 204 and the posttreatment filter element 205. The water heater 3 is used to provide high-temperature hot water, and the drain assembly 4 is used to discharge the sterilized high-temperature hot water.

[0080] The high-temperature sterilization system also includes a circulation pump 5, which is located between the water heater 3 and the water purification equipment 2. The circulation pump 5 is used to drive the flow of high-temperature hot water. A first solenoid valve 6 is also provided between the circulation pump 5 and the water purification equipment 2. The first solenoid valve 6 is used to connect or block the high-temperature hot water from the water heater 3 into the water purification equipment 2. A second solenoid valve 7 is provided between the second water inlet 104 and the sewage discharge assembly 4. The second solenoid valve 7 is used to connect or block the high-temperature hot water from the second water inlet 104 into the sewage discharge assembly 4.

[0081] The path of the high-temperature hot water in this high-temperature sterilization system is as follows: Figure 5As shown, high-temperature hot water flows out of the water heater 3, passes through the post-treatment filter 205 and the ultraviolet sterilization device 206, and then enters the high-temperature sterilization solenoid valve 1000 through the first water inlet 101. Inside the high-temperature sterilization solenoid valve 1000, it passes through the first flow channel 103 and the second flow channel 106 in sequence, and then flows out of the high-temperature sterilization solenoid valve 1000 through the second water inlet 104. The high-temperature hot water flowing out through the second water inlet 104 is discharged through the drain assembly 4.

[0082] Example 2

[0083] This embodiment has a basically the same structure as the high-temperature sterilization solenoid valve 1000 in Embodiment 1, the difference being: Figure 3 and Figure 4 As shown, the second water inlet 104 is used to introduce high-temperature hot water, the first water inlet 101 is used to discharge high-temperature hot water, and the valve body 1 also includes a third water inlet 110. The third water inlet 110 is connected to the first flow channel 103 and the water purification device 2, and is used to provide drinking water.

[0084] Thus, in the height direction, the first gate 101 and the third gate 110 are lower than the second gate 104, such as Figure 4 As shown by the middle arrow, the hot water flows from high to low through the annular first flow channel 103 under the action of gravity, transferring heat to the water tap 102. The water tap 102 is heated by the hot water to achieve the purpose of sterilization. The hot water then flows out through the first water outlet 101 or the second water outlet 104.

[0085] This embodiment also provides a high-temperature sterilization system. The components of this embodiment are basically the same as those of the high-temperature sterilization system in Embodiment 1, with the difference being: [e.g., ...] Figure 6 As shown, the water heater 3 no longer enters the high-temperature sterilization solenoid valve 1000 through the water purification device 2 (high-temperature hot water and drinking water do not share the same flow channel to enter the high-temperature sterilization solenoid valve 1000). That is, the second water inlet 104 is directly connected to the water heater 3, the first water inlet 101 is connected to the drain assembly 4, and the third water inlet 110 is connected to the water purification device 2. The water heater 3 is used to provide high-temperature hot water, the drain assembly 4 is used to discharge the sterilized high-temperature hot water, and the water purification device 2 is used to provide drinking water. A third solenoid valve 8 is set between the water heater 3 and the second water inlet 104. The third solenoid valve 8 is used to connect or block the high-temperature hot water from the water heater 3 into the second water inlet 104. A fourth solenoid valve 9 is set between the first water inlet 101 and the drain assembly 4. The fourth solenoid valve 9 is used to connect or block the high-temperature hot water from the first water inlet 101 into the drain assembly 4. The water purification device 2 is connected to the drain assembly 4. A fifth solenoid valve 10 is set between the water purification device 2 and the drain assembly 4. The fifth solenoid valve 10 is used to connect or block the high-temperature hot water from the water purification device 2 into the drain assembly 4.

[0086] The path of the high-temperature hot water in this high-temperature sterilization system is as follows: Figure 6As shown, after the hot water flows out of the water heater 3, it enters the high-temperature sterilization solenoid valve 1000 through the second water inlet 104, and passes through the second flow channel 106 and the first flow channel 103 in sequence. Some of the hot water is discharged through the first water inlet 101 and the drain assembly 4, while some of the hot water is guided to the water purification equipment 2 through the third water inlet 110 and then discharged through the drain assembly 4.

[0087] 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 high-temperature sterilization solenoid valve comprising a valve body, characterized by, The valve body comprises a first water port and a water nozzle in communication with each other, the water nozzle is a columnar structure provided with a flow passage, the valve body further comprises a first flow channel, the first flow channel is annular, the first flow channel is arranged close to and surrounds the water nozzle, and the first flow channel is in communication between the first water port and the water nozzle, the valve body further comprises a second water port, the second water port is in communication with the first flow channel, and the second water port is arranged away from the first water port, and the first water port and the second water port are used for flowing through high-temperature hot water.

2. The high-temperature sterilization solenoid valve according to claim 1, wherein The first water port is arranged at the bottom of the first flow channel, and the second water port is arranged at the top of the first flow channel.

3. The high-temperature sterilization solenoid valve according to claim 2, wherein The valve body further comprises a piston assembly for opening and closing the water nozzle, and an annular second flow channel is further arranged and communicated between the second water port and the first flow channel, and the second flow channel is arranged close to and surrounds the piston assembly.

4. The high-temperature sterilization solenoid valve according to claim 3, wherein A sealing element is arranged between the piston assembly and the water nozzle, one end of the sealing element is connected to the piston assembly, and the other end of the sealing element abuts and covers the flow passage of the water nozzle.

5. The high-temperature sterilization solenoid valve according to claim 1, wherein The valve body further comprises a positioning ring arranged in the first flow channel, the positioning ring comprises an outer ring and an inner ring, the outer ring is concentric with the inner ring, the outer edge of the outer ring abuts the inner wall surface of the first flow channel, and the inner edge of the inner ring abuts the outer wall surface of the water nozzle.

6. The high-temperature sterilization solenoid valve according to any one of claims 2 to 5, characterized by The first water port is used for flowing in high-temperature hot water, and the second water port is used for flowing out high-temperature hot water.

7. The high-temperature sterilization solenoid valve according to claim 6, wherein The first water port is provided with a backflow valve, and the backflow valve is unidirectional to the first flow channel.

8. The high-temperature sterilization solenoid valve according to any one of claims 2 to 5, wherein The second water port is used for flowing in high-temperature hot water, the first water port is used for flowing out high-temperature hot water, the valve body further comprises a third water port, the third water port is in communication with the first flow channel and a water purification device, and the third water port is used for providing drinking water.

9. A high temperature sterilization system, characterized by, It comprises the high-temperature sterilization electromagnetic valve according to any one of claims 1-8, and the high-temperature sterilization system further comprises a water purification device, a water heater and a sewage assembly.

10. The high temperature sterilization system of claim 9, wherein, The first water port is connected to the water purification device, the second water port is connected to the sewage assembly, the water purification device is used for providing drinking water, the sewage assembly is used for discharging high-temperature hot water after sterilization, the water heater is connected to the water purification device, and the water heater is used for providing high-temperature hot water. Or, the first water port is connected to the water heater, the second water port is connected to the sewage assembly, the third water port is connected to the water purification device, the water heater is used for providing high-temperature hot water, the sewage assembly is used for discharging high-temperature hot water after sterilization, the water purification device is used for providing drinking water, and the water purification device is connected to the sewage assembly.

Images