A device for preparing slightly acidic hypochlorous acid water and its dilution and containing component

Abstract

The present invention discloses a device for preparing slightly acidic hypochlorous acid water and a dilution and containing component thereof, wherein the dilution and containing component comprises a containing body capable of containing a liquid medium, wherein the containing body has a water inlet and a water outlet, and is configured as follows: the water inlet is used to communicate with a water inlet pipeline, and the water outlet is used to communicate with an acid outlet of an electrolytic cell. When the present solution is applied, when the acid-making device stops operating, high-concentration hypochlorous acid water refluxed from the electrolytic cell will enter the containing body through the water outlet of the containing body, and the water in the containing body will dilute the refluxed hypochlorous acid, which can completely avoid the high-concentration acid from refluxing to the upstream water inlet pipeline, thereby avoiding the high-concentration acid from corroding the upstream water inlet pipeline, thereby providing a reliable technical guarantee for the normal operation of the device.

Description

Technical Field

[0001] The invention relates to the technical field of disinfection equipment, and in particular to a device for preparing slightly acidic hypochlorous acid water and a dilution and containing component thereof. Background Art

[0002] As we all know, in the medical, school, catering and service industries, slightly acidic hypochlorous acid water is mostly used for necessary sterilization operations. When the existing electrolytic water equipment is regenerated into acidic electrolytic hypochlorous acid water, high-concentration slightly acidic electrolytic hypochlorous acid water is generated and stored in the electrolytic cell. When the equipment is operating normally, the external water flows in from the water inlet pipe and mixes with the hypochlorous acid water in the electrolytic cell to form slightly acidic electrolytic hypochlorous acid water that meets the use requirements.

[0003] However, due to the limitations of the internal structure of the existing equipment, when the equipment stops running, due to the lack of water intake, the high-concentration hypochlorous acid water in the electrolyzer will have a tendency to flow back toward the water inlet and slowly penetrate into the water inlet pipe. Over time, the high-concentration hypochlorous acid water with strong acid and strong oxidizing properties will cause the sealing material in the pipeline to degenerate and decompose, resulting in pipeline leakage and blockage.

[0004] In view of this, it is urgent to optimize the design of the existing equipment for preparing slightly acidic hypochlorous acid water, so as to effectively overcome the defect of acid reflux corrosion of upstream pipelines on the basis of satisfying the normal supply of slightly acidic hypochlorous acid water. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a device for preparing slightly acidic hypochlorous acid water and a dilution and containing component thereof, which can effectively overcome the above defects existing in the prior art through structural optimization.

[0006] The dilution and containing component provided by the present invention is a device for preparing slightly acidic hypochlorous acid water, comprising a containing body capable of containing a liquid medium, wherein the containing body has a water inlet and a water outlet, and is configured as follows: the water inlet is used to communicate with a water inlet pipeline, and the water outlet is used to communicate with an acid outlet of an electrolytic cell.

[0007] Preferably, the invention further comprises a check valve arranged at the water inlet.

[0008] Preferably, the water inlet is located at the lower part of the containing body, and the water outlet is located at the upper part of the containing body.

[0009] Preferably, the containing body comprises a box body and a cover body, and a snap-fit ​​adapter pair is arranged between the cover body and the box body.

[0010] Preferably, the water inlet is located on the bottom plate of the box body, and the water outlet is located on the side wall of the box body.

[0011] Preferably, the containing body at the periphery of the water inlet has a valve sleeve tube extending outward from the main body; the check valve is located in the valve sleeve tube and comprises: a check valve body, having a guide ring and a fixing ring nested inside and outside, a flow channel is provided in the main body between the guide ring and the fixing ring, and the fixing ring is sealed and connected to the containing body at the periphery of the water inlet; a check valve core, having a valve core and a guide rod extending from the valve core, the guide rod is inserted in the guide ring, the outer peripheral surface of the valve core is adapted to the portion of the fixing ring near the water inlet, and can be switched between a cut-off working position and an open working position. , specifically configured as follows: the valve core switched to the cut-off working position is adapted to form a seal with the fixed ring; the valve core switched to the open working position is separated from the fixed ring; the guide rod limiting ring is located at the protruding end of the guide rod; the elastic return member is pre-deformed and arranged between the guide rod limiting ring and the check valve body, and is configured as follows: when the valve core is switched to the open working position, the guide rod limiting ring and the check valve core are displaced synchronously and drive the elastic return member to deform, and the elastic return member can release the stored elastic deformation energy to push the guide rod limiting ring and the check valve core to provide a return force when the valve core is switched to the cut-off working position.

[0012] Preferably, the water outlet of the container and the inlet of the valve sleeve are both provided with pipe joints; the outer peripheral surface of the pipe joint has a sealing member installation groove, and a fluororubber sealing ring is arranged in the sealing member installation groove.

[0013] Preferably, the volume of the container is 80ml-150ml, and the diameter of the water outlet is 4.5mm-8mm.

[0014] Preferably, the containing body is made of a flexible material and has a containing cavity of a non-fixed shape.

[0015] The present invention also provides a device for preparing slightly acidic hypochlorous acid water, comprising an electrolytic cell and an inlet pipeline for providing dilution water; and also comprising the dilution containing component as described above.

[0016] With respect to the device for preparing slightly acidic hypochlorous acid water, the present invention proposes an innovative solution to avoid acid corrosion of the upstream water inlet pipeline. Specifically, a container that can contain a liquid medium is used as a dilution link on the path of reflux hypochlorous acid. The water outlet of the container is used to communicate with the acid outlet of the electrolytic cell, and the water inlet is used to communicate with the water inlet pipeline. With such a configuration, when the acid-making device stops operating, the high-concentration hypochlorous acid water refluxed from the electrolytic cell will enter the container through the water outlet. The water in the container dilutes the reflux hypochlorous acid, which can completely avoid the reflux of high-concentration acid to the upstream water inlet pipeline, thereby avoiding the corrosion of the upstream water inlet pipeline by high-concentration acid, and providing a reliable technical guarantee for the normal operation of the device.

[0017] In a preferred embodiment of the present invention, a check valve is provided at the water inlet of the container, thereby completely preventing the fluid containing hypochlorous acid components in the container from flowing back to the upstream water inlet pipeline; that is, the barrier based on the check valve provides another layer of protection, even if high-concentration acid flows back into the container, the diluted hypochlorous acid water can be blocked by the check valve and cannot flow back to the front-end pipeline, thereby further protecting the front-end pipeline and ensuring that the upstream water inlet pipeline and related structures have a longer service life.

[0018] In another preferred embodiment of the present invention, the relative positional relationship between the water inlet and the water outlet of the container is further optimized. Specifically, the water inlet is located at the lower part of the container, and the water outlet is located at the upper part of the container, thereby increasing the physical distance between the acid reflux interface and the upstream water inlet pipeline interface. With such an arrangement, on the one hand, a certain physical barrier is formed by lengthening the distance between the two, and at the same time, based on the speed of the dissolution process of high-concentration hypochlorous acid, a buffer zone for the dilute acid can be constructed, so that the hypochlorous acid concentration at the upstream water inlet pipeline interface is relatively low, further reducing the possible acid corrosion effect.

[0019] In another preferred embodiment of the present invention, the container is made of a flexible material and has a cavity of a non-fixed shape, thereby maximizing the use of the internal space of the preparation device, improving the integration of internal components while satisfying the good acid dilution function, and conforming to the design trend of miniaturization of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the use state of the dilution containing component described in the specific implementation method;

[0021] Figure 2 for Figure 1 An exploded diagram of the assembly relationship of the containing body shown in FIG.

[0022] Figure 3 The structure and assembly relationship of the check valve described in the specific implementation manner are shown;

[0023] Figure 4 for Figure 2 C-direction view;

[0024] Figure 5a A schematic diagram showing the matching relationship of the valve core in the cut-off working position is shown;

[0025] Figure 5b A schematic diagram of the valve core matching relationship in the open working position is shown.

[0026] In the figure:

[0027] Dilution containing component 10, containing body 1, box body 11, block 111, limiting groove 112, cover body 12, slot body 121, valve sleeve pipe 13, pipe joint 14, seal installation groove 141, check valve 2, check valve body 21, guide ring 211, fixing ring 212, limiting block 2121, flow channel 213, check valve core 22, valve core 221, guide rod 222, slot 2221, anti-slip portion 2222, guide rod limiting ring 23, elastic reset member 24, first check seal ring 25, second check seal ring 26, sealing gasket 27, electrolytic cell 20. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] Without loss of generality, this embodiment uses the electrolytic cell 20 shown in the figure as a description object to explain in detail the specific implementation of the dilution containing component proposed in this solution. It should be understood that the working mechanism of the electrolytic cell 20 is not the core invention of this application and does not constitute a substantial limitation on the technical solution claimed in this application.

[0030] Please also see Figure 1 , which shows a schematic diagram of the use state of the dilution containing component of this embodiment. The dilution containing component 10 is used in a device for preparing slightly acidic hypochlorous acid water. In order to clearly illustrate its main assembly relationship, the figure only shows the electrolytic cell 20 connected and adapted to its containing body 1.

[0031] As shown in the figure, the container 1 of the dilution container 10 is used to contain the liquid medium, and has a water inlet A and a water outlet B, and the corresponding configuration is: the water inlet A is used to communicate with the water inlet pipeline (not shown in the figure), and the water outlet B is used to communicate with the acid outlet of the electrolytic cell 20. In this way, the acid corrosion of the upstream end of the water inlet pipeline can be avoided.

[0032] Specifically, when the acid-making device stops operating, the high-concentration hypochlorous acid water refluxed from the electrolytic cell 20 enters the container 1 through the outlet B. In this way, the water in the container 1 can be used to dilute the reflux hypochlorous acid. Even if the medium in the container 1 continues to reflux to the water inlet pipeline through the water inlet A, the diluted hypochlorous acid will not corrode the upstream water inlet pipeline. Among them, the actual size of the container 1 is directly related to the dilution barrier effect, which can be specifically defined according to different product types. It can be understood that the effective dilution of the reflux high-concentration hypochlorous acid by the medium in the container 1 can achieve a reliable barrier effect against acid rot. For this reason, it is necessary to comprehensively consider the amount of reflux acid and the medium capacity during the actual operation of the product. Preferably, the volume of the container 1 is 80ml to 150ml, and accordingly, the diameter of the outlet B is 4.5mm to 8mm, which has a relatively good barrier effect against acid rot. After stopping operation, the concentration of the refluxed hypochlorous acid will be lower than 80ppm after dilution.

[0033] In order to obtain a better protection effect, this solution further optimizes the relative position relationship between the water inlet and outlet of the container 1. As shown in the figure, the water inlet A is located at the lower part of the container 1, and the water outlet B is located at the upper part of the container 1, which increases the physical distance between the acid reflux interface and the upstream water inlet pipeline interface; such a setting, on the one hand, forms a certain physical barrier by lengthening the distance between the two, and at the same time, based on the speed of the high-concentration hypochlorous acid dissolution process, a buffer zone for the diluted acid can be constructed in the area near the water outlet B, so that the hypochlorous acid concentration at the upstream water inlet pipeline interface is low, further reducing the possible acid corrosion effect. It can be understood that the spacing size of the water inlet and outlet of the container 1 can be set according to the overall design parameters of the actual product. As long as the functional requirements of the above-mentioned physical barrier can be achieved, it is within the scope of protection requested in this application.

[0034] It should be noted that the container 1 for containing the liquid medium can adopt different structural shapes, such as but not limited to the preferred examples shown in the figure. Figure 2 , which shows an exploded view of the assembly relationship of the container 1 described in this solution.

[0035] In this solution, the container 1 includes a box body 11 and a cover body 12, and the material can be PVC material, so its corrosion resistance and rigidity can meet the use requirements. After assembly, an internal accommodation space is formed, and PVC glue can be used for bonding after assembly. Here, a snap-fit ​​adapter is configured between the cover body 12 and the box body 12 for quick assembly and easy maintenance. Here, the snap-fit ​​adapter can be implemented in different structural forms.

[0036] As shown in the figure, elastic slot bodies 121 are arranged on both sides of the cover body 12, and correspondingly, blocks 111 adapted to the slot bodies 121 are arranged on both sides of the inner wall of the box body 11. During the assembly process, the slot bodies 121 abut against the corresponding side blocks 111 and produce a slight inward deformation. When the two are assembled in place, the slot of the slot body 121 is aligned with the block 111, and the slot body 121 is reset and the two are engaged. It has the characteristics of simple and reliable structure.

[0037] In this solution, the water inlet A is located on the bottom plate of the box body 11 , and the water outlet B is located on the side wall of the box body 11 .

[0038] As a preference, a check valve 2 may be provided at the water inlet A of the container 1, and the check valve 2 can prevent the medium from flowing back while satisfying the water inlet function. Figure 3 , this figure shows the structure and assembly relationship of a check valve described in this embodiment.

[0039] In this way, the fluid containing hypochlorous acid components in the container 1 can be completely prevented from flowing back to the upstream water inlet pipeline; that is, the diluted hypochlorous acid water in the container 1 is blocked by the check valve 2 and cannot flow back to the front-end pipeline. The barrier based on the check valve 2 provides another layer of protection, thereby further protecting the front-end pipeline.

[0040] In addition, the housing 1 at the periphery of the water inlet A may have a valve sleeve pipe 13 extending outward from the main body, and the check valve 2 is arranged in the valve sleeve pipe 13 to obtain a better integration. The check valve 2 located in the valve sleeve pipe 13 is preferably Figure 3 The figure shows the valve structure that can respond quickly, and the figure shows the specific structure and assembly relationship of the check valve in this embodiment. Figure 3 As shown, the check valve 2 includes a check valve body 21 , a check valve core 22 , a guide rod limiting ring 23 and an elastic return member 24 .

[0041] The check valve body 21 has a guide ring 211 and a fixing ring 212 which are nested inside and outside. A flow channel 213 is provided in the body between the guide ring 211 and the fixing ring 212. As shown in the figure, the flow channel 213 is a plurality of fan-shaped channels separated by circumferentially evenly distributed ribs, which has a good load balancing effect. Of course, the flow channel 213 is not limited to the shape shown in the figure, and can actually be a circular hole, a waist-shaped hole or other shapes that can achieve medium conduction.

[0042] After the assembly is completed, the fixing ring 212 is sealed and connected with the receiving body 1 at the periphery of the water inlet A, that is, the check valve body 21 of the check valve 2 is a relatively fixed component. Here, the fixing ring 212 and the receiving body 1 at the periphery of the water inlet A can be realized in different ways. As shown in the figure, the outer peripheral surface of the fixing ring 212 is embedded with a first check seal ring 25 to construct a reliable static seal. After the assembly, PVC glue can be further used for bonding.

[0043] In addition, in order to improve the assembly efficiency of the check valve 2, an assembly pre-positioning structure can be added. Figure 3 and Figure 4 ,in, Figure 4 for Figure 2 As shown in the figure, a radially extending limit block 2121 can be provided on the outer periphery of the fixing ring 212 of the check valve body 21, and a matching limit groove 112 can be formed on the bottom plate of the containing body 1. In this way, when the check valve 2 is pre-installed in the valve sleeve pipe 13, the matching limit block 2121 and the limit groove 112 can quickly form an assembly pre-positioning, and further seal and connect on this basis.

[0044] Of course, the check valve body 21 can also be made of PVC material and assembled and fixed by welding.

[0045] The check valve core 22 has a valve core 221 and a guide rod 222 extending from the valve core 221. The guide rod 222 is inserted into the guide ring 211 of the check valve body 21 to guide the axial displacement of the guide rod 222. Similarly, the check valve core 22 can also be made of PVC. As shown in the figure, the outer peripheral surface of the valve core 221 is matched with the part of the fixing ring 212 near the water inlet B, and can be switched between the closed working position and the open working position. The specific configuration is: switch to Figure 5a The valve core 221 in the cut-off position is adapted to the fixing ring 212 to form a seal; Figure 5b The valve core 221 in the open working position is shown to be separated from the fixing ring 212 .

[0046] Specifically, a second check ring 26 is embedded on the outer peripheral surface of the valve core 221 to form a dynamic seal with the fixing ring 212. In addition, the extended end of the guide rod 222 may be provided with an axially extending narrow groove 2221, and a radially outwardly protruding anti-slip portion 2222 is formed at the rod end; such a configuration facilitates the assembly of the guide rod limiting ring 23, and the radially outwardly protruding anti-slip portion 2222 can be used to form an axial limit of the guide rod limiting ring 23 to prevent it from falling off.

[0047] The guide rod limiting ring 23 is located at the extended end of the guide rod 222, and the elastic reset member 24 is pre-deformed and arranged between the guide rod limiting ring 23 and the check valve body 21, and is configured as follows: the valve core 221 switches to Figure 5b When the valve core 22 is in the open position, the guide rod limiting ring 23 and the check valve core 22 are synchronously displaced and drive the elastic reset member 24 to further deform and store elastic deformation energy, and release the stored elastic deformation energy to push the guide rod limiting ring 23 and the check valve core 22 to provide the valve core 221 to switch to Figure 5a Resetting force for the indicated closed position.

[0048] Here, based on the elastic reset member 24 pre-deformed and arranged between the guide rod limiting ring 23 and the check valve body 21, when the valve core 221 is switched to the cut-off working position, the sealing relationship components can always maintain a sealed adaptation state, and have a good check sealing effect. Here, the elastic reset member 24 can preferably be a stainless steel spring, for example but not limited to stainless steel 316.

[0049] Furthermore, a sealing gasket 27 may be provided between the guide rod limiting ring 23 and the anti-slip portion 2222. The sealing gasket 27 is also sleeved on the guide rod 222. When the valve core 221 is switched to Figure 5a When the stop working position is shown, the sealing gasket 27 abuts against the limiting step 131 of the valve sleeve pipe 13 to form another check valve core 22. Specifically, it can be a fluororubber sealing gasket, which can avoid the impact caused by the reset force on the basis of forming a sealing relationship and reduce the running noise of the whole machine.

[0050] In addition, in this solution, a pipe joint 14 is configured at the water outlet B of the container 1 and the inlet of the valve sleeve pipe 13 to quickly complete the corresponding pipe assembly. In addition, the outer peripheral surface of the pipe joint 14 has a sealing member installation groove 141 to accommodate a sealing ring (not shown in the figure); for example, but not limited to, a fluororubber sealing ring is used.

[0051] Here is a brief description of how this solution works:

[0052] 1) Normal acid production operation status.

[0053] When the equipment is in normal operation, under the action of water pressure, the check valve core 22 overcomes the action of the elastic reset member 24 and switches to Figure 5b The water flowing out of the water inlet pipe flows into the container 1 through the water inlet of the container 1, and flows out from the water outlet of the container 1 to provide dilution water. After the high-concentration hypochlorous acid water in the electrolytic cell is diluted, it meets the specific sterilization function.

[0054] 2) The equipment stops running.

[0055] After the equipment stops running, due to the lack of water inflow (the water inlet pipeline loses pressure), the elastic reset member 24 releases the stored elastic deformation energy, and with the help of the water pressure inside the water tank, the guide rod limiting ring 23 and the check valve core 22 can be pushed to move, so that the valve core 221 can quickly switch to Figure 5aAt the same time, the high-concentration hypochlorous acid water in the electrolytic cell 20 has a tendency to flow back toward the water inlet. Based on the dilution effect of the hydraulic medium in the housing 1 of this solution and the physical barrier of the check valve 2, the possibility of high-concentration acid backflow and acid corrosion of the upstream water inlet pipeline can be completely avoided, thereby avoiding the degeneration and deterioration of the sealing material in the pipeline, resulting in leakage and blockage of the pipeline.

[0056] In addition to the aforementioned dilution and containing component 10, the present embodiment further provides a device for preparing slightly acidic hypochlorous acid water, including an electrolytic cell 20 and an inlet pipeline for providing dilution water, and also includes the aforementioned dilution and containing component 10. The functions of the electrolytic water device, the electrolytic cell 20, etc. of the device are not the core invention of the present application, and those skilled in the art can realize them based on the prior art, so they will not be described in detail herein.

[0057] It should be noted that the container in this embodiment is not limited to the snap-fit ​​assembly structure shown in the figure, and can also be an integrated box according to different product shaping requirements, or can also be other special-shaped structures that can make full use of the internal space of the device. In addition, the container can also be made of flexible materials and have a non-fixed-shaped cavity. Compared with a box with a fixed shape, the internal space of the preparation device can be maximized. On the basis of satisfying a good acid dilution function, the integration between internal components is improved, and it has better adaptability.

[0058] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A dilution and containing component, a device for preparing slightly acidic hypochlorous acid water, characterized in that: The container comprises a container capable of accommodating a liquid medium, wherein the container has a water inlet and a water outlet, and is configured as follows: the water inlet is used to communicate with a water inlet pipeline, and the water outlet is used to communicate with an acid outlet of an electrolytic cell; It also includes a check valve arranged at the water inlet, and the housing at the periphery of the water inlet has a valve sleeve extending outward from the main body; The check valve is located in the valve sleeve pipe and comprises: The check valve body has a guide ring and a fixing ring which are nested inside and outside, a flow channel is provided in the body between the guide ring and the fixing ring, and the fixing ring is sealed and connected with the containing body at the periphery of the water inlet; The check valve core has a valve core and a guide rod extending from the valve core, the guide rod is inserted into the guide ring, the outer peripheral surface of the valve core is matched with the part of the fixing ring near the water inlet, and can be switched between a cut-off working position and an open working position, and is specifically configured as follows: the valve core switched to the cut-off working position is matched with the fixing ring to form a seal; the valve core switched to the open working position is separated from the fixing ring; A guide rod limiting ring is located at the extended end of the guide rod; An elastic return member is pre-deformed and arranged between the guide rod limiting ring and the check valve body, and is configured as follows: when the valve core is switched to the open working position, the guide rod limiting ring and the check valve core are synchronously displaced and drive the elastic return member to deform, and the elastic return member can release the stored elastic deformation energy to push the guide rod limiting ring and the check valve core to provide a return force for the valve core to switch to the closed working position.

2. The dilution containing component according to claim 1, characterized in that: The water inlet is located at the lower part of the containing body, and the water outlet is located at the upper part of the containing body.

3. The dilution containing component according to claim 2, characterized in that: The containing body comprises a box body and a cover body, and a buckle adapter pair is arranged between the cover body and the box body.

4. The dilution containing component according to claim 3, characterized in that: The water inlet is located on the bottom plate of the box body, and the water outlet is located on the side wall of the box body.

5. The dilution containing component according to claim 1, characterized in that: The water outlet of the container and the inlet of the valve sleeve pipe are both provided with pipe joints; the outer peripheral surface of the pipe joint has a sealing member installation groove, and a fluororubber sealing ring is arranged in the sealing member installation groove.

6. The dilution containing component according to claim 5, characterized in that: The volume of the container is 80ml-150ml, and the diameter of the water outlet is 4.5mm-8mm.

7. The dilution containing component according to claim 1, characterized in that: The containing body is made of flexible material and has a containing cavity with a non-fixed shape.

8. A device for preparing slightly acidic hypochlorous water, comprising an electrolytic cell and an inlet pipeline for providing dilution water; characterized in that: It also includes a dilution containing component according to any one of claims 1 to 7.

Images