CN113818032B - A device for preparing slightly acidic hypochlorous acid water and its dilution and containing component - Google Patents

Abstract

The invention discloses a device for preparing subacidity hypochlorous acid water and a dilution containing part thereof, wherein the dilution containing part comprises a containing body capable of containing liquid medium, the containing body is provided with a water inlet and a water outlet and is configured to: the water inlet is used for being communicated with the water inlet pipeline, and the water outlet is used for being communicated with the acid outlet of the electrolytic tank. After the acid making device stops running, high-concentration hypochlorous acid water flowing back from the electrolytic tank enters the acid making device through the water outlet of the accommodating body, water in the accommodating body forms dilution of the flowing back hypochlorous acid, and the high-concentration acid can be completely avoided flowing back to the upstream water inlet pipeline, so that the high-concentration acid corrosion-free upstream water inlet pipeline can be avoided, and reliable technical guarantee is provided for normal operation of the device.

Description

Device for preparing slightly acidic hypochlorous acid water and dilution containing part thereof

Technical Field

The invention relates to the technical field of disinfection equipment, in particular to a device for preparing slightly acidic hypochlorous acid water and a dilution containing part thereof.

Background

As is well known, in the industries of medical treatment, schools, catering, service and the like, a necessary sterilization operation is mostly performed by using slightly acidic hypochlorous acid water. When the existing water electrolysis equipment regenerates into acidic electrolytic hypochlorous acid water, high-concentration slightly acidic electrolytic hypochlorous acid water is generated and stored in an electrolytic tank, and when the equipment normally operates, external water flows in from a water inlet end pipeline and is mixed with hypochlorous acid water in the electrolytic tank, so that slightly acidic electrolytic hypochlorous acid water meeting the use requirement is formed.

However, due to the limitation of the internal structure of the existing equipment, when the equipment stops running, high-concentration hypochlorous acid water in the electrolytic tank flows back towards the water inlet direction due to no water inlet, and slowly permeates into the water inlet end pipeline. In the past, high concentration hypochlorous acid water with strong acid and strong oxidation characteristics can cause the degradation of sealing materials in a pipeline, and then the pipeline water leakage and the problem of jam appear.

In view of this, there is a need to optimally design the existing device for preparing slightly acidic hypochlorous acid water so as to effectively overcome the defect of acid reflux corrosion of an upstream pipeline on the basis of meeting the requirement of normally supplying slightly acidic hypochlorous acid water.

Disclosure of Invention

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

The invention provides a dilution containing part, which is used for preparing a device of subacidity hypochlorous acid water, and comprises a containing body capable of containing a liquid medium, wherein the containing body is provided with a water inlet and a water outlet and is configured to: the water inlet is used for being communicated with the water inlet pipeline, and the water outlet is used for being communicated with the acid outlet of the electrolytic tank.

Preferably, the water inlet is provided with a check valve.

Preferably, the water inlet is positioned at the lower part of the accommodating body, and the water outlet is positioned at the upper part of the accommodating body.

Preferably, the accommodating body comprises a box body and a cover body, and a buckle adaptation pair is arranged between the cover body and the box body.

Preferably, the water inlet is positioned on the bottom plate of the box body, and the water outlet is positioned on the side wall of the box body.

Preferably, the containing body at the periphery of the water inlet is provided with a valve sleeve connecting pipe which is formed by extending outwards from the body, the check valve is arranged in the valve sleeve connecting pipe and comprises a check valve body, a guide ring and a fixed ring, a check valve core, an elastic reset piece and a reset storage piece, wherein the guide ring and the fixed ring are arranged in a nested mode, the guide ring and the fixed ring are arranged in an inner nested mode, a flow passage is formed between the guide ring and the fixed ring, the fixed ring is fixedly connected with the containing body at the periphery of the water inlet, the check valve core is provided with a valve core and a guide rod which extends from the valve core, the guide rod is inserted in the guide ring, the peripheral surface of the valve core is matched with a part of the fixed ring close to the water inlet, the check valve core can be switched between a cut-off working position and an opening working position, the check valve core is matched with the fixed ring to form a seal, the check valve core is switched to an opening working position, the check valve core is separated from the fixed ring, the guide rod is arranged at the extending end of the guide rod, and an elastic reset piece is arranged between the guide rod limiting ring and the check valve body, and the check valve core is arranged, and the elastic reset piece can be synchronously reset, and the elastic reset piece is arranged, and the elastic reset piece can be used to drive the reset guide rod limiting the guide rod to the reset piece to the elastic reset and the check valve core to change.

Preferably, the water outlet of the accommodating body and the inlet of the valve sleeve connecting pipe are respectively provided with a pipeline joint, the peripheral surface of the pipeline joint is provided with a sealing element mounting groove, and a fluorine rubber sealing ring is arranged in the sealing element mounting groove.

Preferably, the volume of the accommodating body is 80 ml-150 ml, and the drift diameter of the water outlet is 4.5 mm-8 mm.

Preferably, the accommodating body is made of flexible material and is provided with an accommodating cavity with a non-fixed shape.

The invention also provides a device for preparing the slightly acidic hypochlorous acid water, which comprises an electrolytic tank, an inlet pipeline for providing dilution water and the dilution containing component.

Aiming at the device for preparing the slightly acidic hypochlorous acid water, the invention provides an innovative scheme for avoiding the water inlet pipeline at the upstream end of the acid corrosion. When the acid making device stops running, high-concentration hypochlorous acid water flowing back from the electrolytic tank enters the acid making device through the water outlet of the accommodating body, the water in the accommodating body forms dilution on the reflux hypochlorous acid, and the high-concentration acid can be completely prevented from flowing back to the upstream water inlet pipeline, so that the high-concentration acid corrosion-free upstream end water inlet pipeline can be avoided, and reliable technical guarantee is provided for the normal running of the device.

In the preferred scheme of the invention, the check valve is additionally arranged at the water inlet of the accommodating body, so that the fluid containing hypochlorous acid components in the accommodating body can be completely prevented from flowing back to the upstream water inlet pipeline, namely, the blocking based on the check valve provides further heavy protection, even if high-concentration acid flows back into the accommodating body, the diluted hypochlorous acid water can be blocked by the check valve and cannot flow back to the front end pipeline, and the front end pipeline can be further protected, and the upstream water inlet pipeline and the related components are ensured to have longer service life.

In another preferred scheme of the invention, the relative position relation of the water inlet and the water outlet of the accommodating body is further optimized, specifically, the water inlet is positioned at the lower part of the accommodating body, the water outlet is positioned at the upper part of the accommodating body, the physical distance between the acid reflux interface and the upstream water inlet pipeline interface is increased, and the arrangement is that on one hand, a certain physical barrier is formed by lengthening the distance between the acid reflux interface and the upstream water inlet pipeline interface, and meanwhile, the buffer zone for diluting the acid can be constructed based on the speed of the high-concentration hypochlorous acid dissolution process, so that the hypochlorous acid concentration at the position of the upstream water inlet pipeline interface is lower, and the acid corrosion influence possibly generated is further reduced.

In a further preferred embodiment of the invention, the receiving body is made of a flexible material and has a receiving cavity of non-fixed shape. Therefore, the internal space of the preparation device can be utilized to the maximum extent, the integration level among internal components is improved on the basis of meeting the good acid dilution function, and the design trend of device miniaturization is met.

Drawings

FIG. 1 is a schematic view showing a usage state of a dilution containing unit according to an embodiment;

FIG. 2 is an exploded view of the assembly relationship of the pod shown in FIG. 1;

FIG. 3 illustrates the construction and assembly of the check valve according to the embodiments;

FIG. 4 is a view in the direction C of FIG. 2;

FIG. 5a shows a schematic diagram of the mating relationship of the valve spools in the off-position;

fig. 5b shows a schematic diagram of the valve core mating relationship in the open operating position.

In the figure:

The dilution housing part 10, the housing body 1, the case 11, the fixture block 111, the limit groove 112, the cover body 12, the clamping groove body 121, the valve housing adapter 13, the pipe joint 14, the seal mounting groove 141, the check valve 2, the check valve body 21, the guide ring 211, the retainer ring 212, the stopper 2121, the flow passage 213, the check valve element 22, the valve element 221, the guide rod 222, the slot 2221, the release preventing portion 2222, the guide rod limiting ring 23, the elastic restoring member 24, the first check seal ring 25, the second check seal ring 26, the gasket 27, and the electrolytic tank 20.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

Without loss of generality, the present embodiment is directed to an electrolytic cell 20 shown in the drawings, and detailed description is given of specific implementation of the dilution accommodating member proposed in the present embodiment. It should be understood that the operation mechanism of the electrolytic cell 20 is not the core point of the present application and does not constitute a substantial limitation on the technical solution claimed by the present application.

Referring also to fig. 1, a schematic view of the usage state of the dilution containing unit according to the present embodiment is shown. The dilution containment unit 10 is a device for preparing slightly acidic hypochlorous acid water, of which only the electrolytic cell 20 adapted in communication with its containment body 1 is shown for the sake of clarity in the main assembly.

As shown, the container body 1 of the dilution containing part 10 is used for containing a liquid medium and is provided with a water inlet a and a water outlet B, which are respectively configured so that the water inlet a is used for being communicated with a water inlet pipeline (not shown in the figure), and the water outlet B is used for being communicated with an acid outlet of the electrolytic tank 20. Thus, the water inlet pipeline at the upstream end of the acid corrosion can be avoided.

Specifically, when the acid generator is stopped, the high-concentration hypochlorous acid water flowing back from the electrolytic tank 20 enters the acid generator through the water outlet B of the accommodating body 1, so that the water in the accommodating body 1 can be used for diluting the refluxing hypochlorous acid, and even if the medium in the accommodating body 1 continuously flows back to the water inlet pipeline through the water inlet A, the diluted hypochlorous acid does not corrode the water inlet pipeline at the upstream end. The actual dimensions of the receiving body 1 are directly related to the dilution barrier effect and can be specifically defined according to different product types. It can be understood that the effective dilution of the medium in the accommodating body 1 to the backflow high-concentration hypochlorous acid can achieve the effect of reliably blocking acid corrosion, therefore, the backflow acid amount and the medium accommodating amount in the actual running process of the product need to be comprehensively considered, and preferably, the volume of the accommodating body 1 is 80 ml-150 ml, and correspondingly, the drift diameter of the water outlet B is 4.5 mm-8 mm, so that the acid corrosion blocking effect is relatively good. After shut down, the concentration of the refluxing hypochlorous acid after dilution will be less than 80ppm.

In order to obtain a better protection effect, the relative position relation of the water inlet and the water outlet of the accommodating body 1 is further optimized by the scheme. As shown in the figure, the water inlet A is positioned at the lower part of the accommodating body 1, the water outlet B is positioned at the upper part of the accommodating body 1, the physical distance between the acid reflux interface and the upstream water inlet pipeline interface is increased, and the arrangement is that on one hand, a certain physical barrier is formed by lengthening the distance between the acid reflux interface and the upstream water inlet pipeline interface, and meanwhile, based on the speed of the dissolution process of high-concentration hypochlorous acid, the buffer zone of diluted acid can be constructed in the area close to the water outlet B, so that the hypochlorous acid concentration at the interface position of the upstream water inlet pipeline is lower, and the acid corrosion influence possibly generated is further reduced. It is understood that the distance between the water inlet and the water outlet of the accommodating body 1 can be set according to the overall design parameters of the actual product, so long as the above-mentioned functional requirements of physical barrier can be met, and all the requirements are within the scope of the application.

It should be noted that the container 1 for containing the liquid medium may take different structural shapes, such as, but not limited to, the preferred examples shown in the drawings. Referring also to fig. 2, an exploded view of the assembly of the container 1 according to the present embodiment is shown.

In this scheme, hold body 1 and include box 11 and lid 12, and the material can be PVC material, consequently its corrosion resistance and rigidity can all reach the operation requirement. After the assembly is completed, an internal accommodating space is formed, and the PVC glue can be used for bonding after the assembly. Here, a snap fit pair is provided between the cover 12 and the case 12 for quick assembly while facilitating maintenance operations. Here, the snap-fit pairs can be realized in different structural forms.

In the figure, elastic clamping groove bodies 121 are arranged on two sides of the cover body 12, clamping blocks 111 matched with the clamping groove bodies 121 are correspondingly arranged on two sides of the inner wall of the box body 11, in the assembling process, the clamping groove bodies 121 are abutted with the corresponding side clamping blocks 111 and generate adduction micro deformation, when the clamping groove bodies and the clamping blocks 111 are assembled in place, the clamping grooves of the clamping groove bodies 121 are aligned, and the clamping groove bodies 121 are in reset clamping engagement. Has the characteristics of simple and reliable structure.

In this scheme, water inlet A is located on the bottom plate of box 11, and delivery port B is located on the lateral wall of box 11.

Preferably, a non-return valve 2 is also provided at the water inlet a of the container 1, which non-return valve 2 prevents the medium from flowing back, in addition to the water inlet function. Referring to fig. 3, the construction and assembly of a check valve according to the present embodiment is shown.

This completely prevents the flow of the hypochlorous acid component-containing fluid in the container 1 from flowing back to the upstream water inlet pipe, 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 pipe, and further, the front pipe can be further protected by the blocking of the check valve 2.

In addition, the housing body 1 at the outer circumference of the water inlet a may have a valve housing nipple 13 formed to extend outwardly from the body, and the check valve 2 is disposed in the valve housing nipple 13 to obtain a preferable integration level. The check valve 2, which is located within the valve housing nipple 13, is preferably constructed as a quick-response valve as shown in fig. 3, which illustrates the specific construction and assembly of the check valve of the present embodiment. As shown in fig. 3, the check valve 2 includes a check valve body 21, a check valve spool 22, a stem defining ring 23, and a resilient return member 24.

The check valve body 21 is provided with a guide ring 211 and a fixing ring 212 which are nested inside and outside, a flow channel 213 is formed between the guide ring 211 and the fixing ring 212, and the flow channel 213 is a plurality of fan-shaped channels formed by separating ribs uniformly distributed in the circumferential direction, so that a good uniform load effect is achieved. Of course, the flow channel 213 is not limited to the shape shown in the drawings, but may be a circular hole, a kidney-shaped hole, or other shapes that can realize medium communication.

After the assembly, the retainer 212 is sealed and connected to the housing 1 around the water inlet a, that is, the check valve body 21 of the check valve 2 is a relatively fixed member. Here, the fixing ring 212 and the accommodating body 1 at the periphery of the water inlet a may be implemented in different manners, and the first check seal ring 25 is embedded on the peripheral surface of the fixing ring 212, so as to construct a reliable static seal, and after combination, the fixing ring and the accommodating body may be further bonded by using PVC glue.

In addition, in order to improve the assembling efficiency of the check valve 2, an assembling pre-positioning structure may be added. Please refer to fig. 3 and fig. 4 together, wherein fig. 4 is a view in the direction C of fig. 2. As shown in the figure, a limiting block 2121 formed by radial extension can be arranged at the periphery of the fixing ring 212 of the check valve body 21, and an adaptive limiting groove 112 is formed on the bottom plate of the accommodating body 1, so that when the check valve 2 is preloaded in the valve sleeve connecting tube 13, the assembling pre-positioning can be quickly formed based on the adaptive limiting block 2121 and the limiting groove 112, and the check valve can be further sealed and connected on the basis.

Of course, the check valve body 21 may be made of PVC, and assembled and fixed by welding.

The check valve core 22 has a valve core 221 and a guide rod 222 extending from the valve core 221, wherein the guide rod 222 is inserted into the guide ring 211 of the check valve body 21 to construct a guide for axial displacement of the guide rod 222, and the check valve core 22 can be made of PVC as well. As shown in the figure, the outer peripheral surface of the valve element 221 is adapted to the portion of the retainer 212 near the water inlet B, and is switchable between a closed operating position and an open operating position, and specifically configured such that the valve element 221 switched to the closed operating position shown in fig. 5a is adapted to seal with the retainer 212, and the valve element 221 switched to the open operating position shown in fig. 5B is disengaged from the retainer 212.

Specifically, a second check seal 26 is fitted on the outer peripheral surface of the valve body 221 to form a dynamic seal with the retainer 212. In addition, the extending end of the guide rod 222 may be provided with an axially extending slot 2221, and a radially protruding anti-releasing portion 2222 is formed at the rod end, so as to facilitate the assembly of the guide rod limiting ring 23, and simultaneously, the axially limiting of the guide rod limiting ring 2 may be constructed by the radially protruding anti-releasing portion 2222 to prevent the guide rod limiting ring 3 from releasing.

The guide rod limiting ring 23 is located at the extending end of the guide rod 222, and the elastic restoring member 24 is pre-deformed between the guide rod limiting ring 23 and the check valve body 21, and is configured such that when the valve core 221 is switched to the open working position shown in fig. 5b, the guide rod limiting ring 23 and the check valve core 22 synchronously displace and drive the elastic restoring member 24 to further deform, 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, so as to provide restoring force for switching the valve core 221 to the stop working position shown in fig. 5 a.

Here, based on the elastic restoring member 24 provided between the guide rod defining ring 23 and the check valve body 21 by the pre-deformation, when the valve body 221 is switched to the cut-off operation position, the sealing-relation members can always maintain the sealing-fit state, with a good check sealing effect. Here, the resilient return member 24 may preferably be a stainless steel spring, such as, but not limited to, stainless steel 316.

Further, a gasket 27 may be further disposed between the guide rod limiting ring 23 and the anti-release portion 2222, the gasket 27 is also sleeved on the guide rod 222, and when the valve core 221 is switched to the stop working position shown in fig. 5a, the gasket 27 abuts against the limiting step 131 of the valve sleeve connecting tube 13, so as to form another heavy check sealing relationship of the check valve core 22. The fluorine rubber sealing gasket can be used for preventing the impact possibly formed by the reset acting force on the basis of forming a sealing relation, and reducing the running noise of the whole machine.

In addition, the water outlet B of the accommodating body 1 and the inlet of the valve sleeve connecting pipe 13 are respectively provided with a pipeline joint 14 so as to quickly complete the assembly of corresponding pipelines. Further, the outer peripheral surface of the pipe joint 14 has a seal mounting groove 141 to accommodate a seal ring (not shown), such as, but not limited to, a fluorine rubber seal ring.

The working principle of the scheme is briefly described below:

1) Normal acid making operation state.

In normal operation of the device, under the action of the water pressure, the non-return valve element 22 is switched to the open operating position shown in fig. 5b against the action of the elastic return element 24. The water flow flowing out of the water inlet pipeline flows into the accommodating body 1 through the water inlet of the accommodating body 1, and the water flows out of the water outlet of the accommodating body 1 to provide dilution water. After the high-concentration hypochlorous acid water in the electrolytic tank is diluted, the specific sterilization function is satisfied.

2) And the equipment is stopped.

After the device stops running, as no water is fed (the water inlet pipeline loses pressure), the elastic reset piece 24 releases the reserved elastic deformation energy, and the water pressure in the water tank is assisted, so that the guide rod limiting ring 23 and the check valve core 22 can be pushed to displace, and the valve core 221 can be rapidly switched to a stop working position shown in fig. 5 a. Meanwhile, the high-concentration hypochlorous acid water in the electrolytic tank 20 forms a trend of flowing back towards the direction of the water inlet, and the possibility of water inlet pipelines at the upstream end of the high-concentration acid backflow acid can be completely avoided based on the dilution effect of the hydraulic medium in the accommodating body 1 and the physical separation of the check valve 2 in the scheme, so that the problems of water leakage and blockage of the pipelines caused by poor degradation of sealing materials in the pipelines are avoided.

In addition to the dilution containing unit 10 described above, the present embodiment also provides an apparatus for producing slightly acidic hypochlorous acid water, comprising an electrolytic cell 20 and an inlet line for providing dilution water, and also comprising the dilution containing unit 10 described above. The functions of the water electrolysis device, the electrolytic tank 20 and the like of the device form the core application point of the application, and the functions of the water electrolysis device, the electrolytic tank 20 and the like can be realized by a person skilled in the art based on the prior art, so that the description is omitted herein.

The accommodating body in the present embodiment is not limited to the engaging assembly structure shown in the drawings, and may be an integral box or may be another special structure capable of fully utilizing the internal space of the device according to different product shaping requirements. In addition, the accommodating body can be made of flexible materials, and is provided with an accommodating cavity with a non-fixed shape, compared with a box body with a fixed shape, the inner space of the preparation device can be utilized to the greatest extent, and on the basis of meeting a good acid dilution function, the integration level among inner components is improved, and the accommodating body has better adaptability.

The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims (8)

1. The device for preparing the slightly acidic hypochlorous acid water by the dilution containing component is characterized by comprising a containing body capable of containing a liquid medium, wherein the containing body is provided with a water inlet and a water outlet and is configured to be communicated with a water inlet pipeline, and the water outlet is communicated with an acid outlet of an electrolytic tank;

The water inlet is characterized by further comprising a check valve arranged at the water inlet, the containing body at the periphery of the water inlet is provided with a valve sleeve connecting pipe which is formed by extending outwards from the body, and the check valve is positioned in the valve sleeve connecting pipe and comprises:

The check valve body is provided with a guide ring and a fixed ring which are nested inside and outside, a flow passage is formed between the guide ring and the fixed ring, and the fixed ring is in sealing connection with the containing body at the periphery of the water inlet;

The check valve core is provided with a valve core and a guide rod which extends from the valve core, the guide rod is inserted into the guide ring, the outer circumferential surface of the valve core is matched with the part of the fixed ring near the water inlet side and can be switched between a cut-off working position and an opening working position, and the check valve core is specifically configured to be matched with the fixed ring to construct a seal;

a guide rod defining ring located at an extended end of the guide rod;

The elastic reset piece is arranged between the guide rod limiting ring and the check valve body in a pre-deformation mode and is configured to enable the guide rod limiting ring and the check valve core to synchronously displace and drive the elastic reset piece to deform when the valve core is switched to an opening working position, and the elastic reset piece can release reserved elastic deformation energy to push the guide rod limiting ring and the check valve core so as to provide reset force for switching the valve core to a closing working position.

2. The dilution containment unit of claim 1, wherein the water inlet is located in a lower portion of the containment body and the water outlet is located in an upper portion of the containment body.

3. The dilution containment unit of claim 2, wherein the containment body comprises a housing and a cover, and wherein a snap fit pair is disposed between the cover and the housing.

4. A dilution containment unit according to claim 3, wherein the water inlet is located in the floor of the tank and the water outlet is located in a side wall of the tank.

5. The dilution containment unit of claim 1, wherein a conduit fitting is disposed at both the water outlet of the containment body and the inlet of the valve sleeve, wherein a seal mounting groove is formed in the outer peripheral surface of the conduit fitting, and a fluorine rubber seal ring is disposed in the seal mounting groove.

6. The dilution containment unit according to claim 5, wherein the volume of the containment body is 80ml to 150ml and the diameter of the water outlet is 4.5mm to 8mm.

7. The dilution containment unit of claim 1, wherein the containment body is made of a flexible material having a non-fixedly shaped cavity.

8. An apparatus for producing slightly acidic hypochlorous acid water comprising an electrolytic tank and an inlet line for providing dilution water, characterized by further comprising a dilution receiving member according to any one of claims 1 to 7.