Chemical solution filter

Abstract

The utility model discloses a chemical solution filter. The chemical solution filter comprises a filter barrel, the double-layer filter is detachably connected with the filtering barrel; the hot water storage tank is arranged on the inner wall of the upper end of the filtering barrel and wraps the outer wall of the double-layer filter, and a gap exists between the hot water storage tank and the double-layer filter; the liquid inlet pipe is arranged at the top end of the double-layer filter in a communicating manner; the liquid outlet pipe is arranged at the bottom end of the filtering barrel in a communicating manner and is provided with a control electric valve. The chemical solution filter disclosed by the utility model solves the problems that crystals in part of chemical reagents are correspondingly separated out and a filtering membrane and a liquid discharge pipe are gradually blocked after a long time due to the fact that the filtering is in a temperature reduction process in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical equipment field of chemical reagents, in particular to a chemical solution filter. Background Art

[0002] In the prior art, the structure of the filter used for chemical reagents is usually set as a barrel structure. The upper half is set as a cylindrical structure, the lower half is set as a conical structure, and a discharge port is arranged at the bottom of the conical structure. A filter plate is arranged in the middle part. Specifically, when in use, a filter bag needs to be placed on the filter plate to control the filter aperture.

[0003] In the prior art, due to single-stage filtration, there is a problem that the filtration effect is not good in the filtration treatment of chemical reagents that require high purity and high precision.

[0004] In order to solve this problem, the application number is: 201920156207.6. A filtering device for chemical reagent production has a double-layer filter membrane to increase the filtration accuracy, and the flexible installation of the filter membrane is convenient for replacing the filter membrane. However, since the filtration is a temperature drop process, crystals in some chemical reagents will be precipitated accordingly, and over time, the filter membrane and the drain pipe will be gradually blocked. Content of the Utility Model

[0005] An object of the utility model is to solve at least the above problems and / or defects, and provide at least the advantages described later.

[0006] In order to achieve these objects and other advantages of the present utility model, there is provided a chemical solution filter, including:

[0007] A filter barrel;

[0008] A double-layer filter, which is detachably connected to the filter barrel;

[0009] A hot water storage tank, which is arranged on the inner wall of the upper end of the filter barrel. The hot water storage tank wraps the outer wall of the double-layer filter, and there is a gap between the two;

[0010] An inlet pipe, which is communicatively arranged at the top end of the double-layer filter;

[0011] An outlet pipe, which is communicatively arranged at the bottom end of the filter barrel and is provided with a control electric valve.

[0012] Preferably, among them, the structure of the filter barrel includes:

[0013] A barrel body, on which a protruding part is arranged and is movably connected to the double-layer filter;

[0014] A hot water storage tank is provided on the inner wall at the upper end of the barrel. An injection port is connected and provided on the side end, and an outlet is connected and provided at the upper end. The hot water storage tank is wrapped around the outer wall of a double-layer filter, and there is a gap between the two;

[0015] A conical heat insulation plate has a hole in the middle and is located at the lower end of the double-layer filter.

[0016] Preferably, the structure of the double-layer filter includes:

[0017] A sealing cover, the center position of which is fixedly connected to the liquid inlet pipe by threads. Inner ring protrusions and outer ring protrusions are provided on the sealing cover, and threads are provided on both the inner ring protrusions and the outer ring protrusions;

[0018] A first-layer filter barrel, which is threadedly connected to the inner ring protrusion of the sealing cover;

[0019] A second-layer filter barrel, which is threadedly connected to the outer ring protrusion of the sealing cover;

[0020] A protruding limit block is provided at the top of the second-layer filter barrel and is embedded and connected to the protruding part.

[0021] The present utility model has at least the following beneficial effects:

[0022] The double-layer filter of the present practical design can achieve a double-stage filtering effect through the first-layer filter barrel and the second-layer filter barrel. At the same time, the detachable connection method with the barrel body can replace the double-layer filter according to actual needs. The heating device provided in the barrel body can prevent the problem that the filter device is blocked by crystals precipitated due to liquid condensation.

[0023] Other advantages, objectives and features of the present utility model will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall sectional structure of the present utility model;

[0025] Figure 2 It is a schematic diagram of the sectional view of the filter barrel of the present utility model;

[0026] Figure 3 It is a schematic diagram of the upper half sectional structure of the double-layer filter of the present utility model;

[0027] Figure 4 It is a schematic diagram of the overall structure of the double-layer filter of the present utility model;

[0028] Figure 5 It is a schematic diagram of the connection method of the present utility model;

[0029] Figure 6 Schematic diagram of the overall structure of the present utility model. Specific embodiments

[0030] The following further describes the present utility model in detail with reference to the accompanying drawings, so that those skilled in the art can implement it according to the text of the specification.

[0031] It should be understood that the terms such as "having", "comprising" and "including" used herein do not exclude the presence or addition of one or more other elements or their combinations.

[0032] It should be noted that in the description of the present utility model, the orientation or positional relationship indicated by the terms is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0034] In addition, in the present utility model, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0035] The following describes the present experimental novelty in detail with reference to the accompanying drawings:

[0036] Figures 1-6 A chemical solution filter of the present utility model is shown, including:

[0037] Filter barrel 1;

[0038] Double-layer filter 2, which is detachably connected to the filter barrel 1;

[0039] A hot water storage tank 10 is provided on the inner wall of the upper end of the filter barrel 1. The hot water storage tank is wrapped around the outer wall of the double-layer filter 2, and there is a gap between them.

[0040] An inlet pipe 3 is connected and provided at the top end of the double-layer filter 2.

[0041] An outlet pipe 4 is connected and provided at the bottom end of the filter barrel 1, and a control electric valve 40 is provided.

[0042] Working principle:

[0043] The double-layer filter 2 is connected and fixed to the filter barrel 1 by an embedded detachable connection method. During the working state, the liquid to be filtered enters the double-layer filter 2 through the inlet pipe 3. After the liquid passes through the two layers of the double-layer filter 2 and most of the impurities are removed, it enters the filter barrel 1. At the same time, since it is necessary to provide a hot filtration (hot filtration refers to the filtration process of keeping the temperature of the solid-liquid mixture within a certain range while the temperature of the solid-liquid mixture is relatively high) environment for the feed liquid;

[0044] When the feed liquid enters the filter barrel 1, hot water is continuously circulated and injected into the hot water storage tank 10 to ensure the temperature of the filter barrel 1 and prevent the problem that crystals in some chemical reagents will be precipitated accordingly due to the temperature drop during filtration, and over time, the double-layer filter and the discharge port will be gradually blocked.

[0045] The filtered feed liquid accumulates at the bottom of the filter barrel 1. The control electric valve 40 is opened, and the filtered liquid is transported out through the outlet pipe 4.

[0046] In the above solution, the structure of the filter barrel 1 includes:

[0047] A barrel body 11 is provided with a protruding portion 12 and is movably connected to the double-layer filter 2.

[0048] A hot water storage tank 10 is provided on the inner wall of the upper end of the barrel body 11. An injection port 102 is connected and provided at the side end, and a water outlet 101 is connected and provided at the upper end. The hot water storage tank 10 is wrapped around the outer wall of the double-layer filter 2, and there is a gap between them.

[0049] A conical heat insulation plate 13 has a hole in the middle and is located at the lower end of the double-layer filter 2.

[0050] Working principle:

[0051] The protruding part 12 provided at the top of the filter barrel 1 can be fixed to the double-layer filter 2. The protruding design of the protruding part 12 can prevent external dust from entering the barrel body 11 and contaminating the liquid. The way of movable connection can facilitate the replacement of the double-layer filter 2 with residual impurities after filtration. The lower end of the barrel body 11 adopts a funnel structure, which can prevent liquid from remaining attached to the barrel wall and affecting filtration.

[0052] Before the liquid material enters the barrel body 11 through the double-layer filter 2, hot water is injected into the water injection port 102 and stored in the hot water storage tank 10 attached to the side wall of the barrel body 11. When the hot water storage tank 10 is full of hot water, the liquid material starts to be injected into the filter barrel through the liquid inlet pipe 3. And part of the cooled hot water leaves through the water outlet 101 provided at the top, and after being reheated, it enters the hot water storage tank 10 through the water injection port 102 again to complete the recycling of hot water. The filtered liquid flows into the lower half of the barrel body 11 along the position of the opening in the middle of the conical heat insulation plate 13.

[0053] The hot water storage tank 10 and the conical heat insulation plate 13 cooperate with each other to ensure that the temperature in the upper half of the filter barrel 1 is maintained within the required range of the liquid material; effectively preventing and avoiding the problem that crystals in some chemical reagents are precipitated due to the temperature drop during filtration, blocking the double-layer filter and the discharge port, and having the advantages of controllable temperature, fast filtration speed, high purification yield, etc.

[0054] In the above solution, the structure of the double-layer filter 2 includes:

[0055] A sealing cover 20, the center position of which is threadedly fixed to the liquid inlet pipe 3. The sealing cover 20 is provided with an inner ring protrusion 201 and an outer ring protrusion 202, and threads are provided on both the inner ring protrusion 201 and the outer ring protrusion 202.

[0056] The first-layer filter barrel 21 is threadedly connected to the inner ring protrusion 201 of the sealing cover 20.

[0057] The second-layer filter barrel 22 is threadedly connected to the outer ring protrusion 202 of the sealing cover 20.

[0058] A protruding limit block 23 is provided at the top of the second-layer filter barrel 22 and is embedded and connected to the protruding part 12.

[0059] Working principle:

[0060] The sealing cover 20 provided on the double-layer filter 2 can prevent external dust and impurities from entering the filter barrel 1 and causing secondary pollution to the liquid.

[0061] Before starting the filtration operation, the feed liquid will be roughly filtered for the first time. A filter bag with the required filtration aperture is sleeved on the first-layer filter barrel 21, and the upper opening of the filter bag is fixed by screwing the inner-ring protrusion 201 of the sealing cover 20 onto the top of the first-layer filter barrel 21.

[0062] The feed liquid will be finely filtered for the second time. A filter bag with the required filtration aperture is sleeved on the second-layer filter barrel 22, and the upper opening of the filter bag is fixed by screwing the outer-ring protrusion 202 of the sealing cover 20 onto the top of the second-layer filter barrel 22. At the same time, a liquid inlet pipe 3 is screwed into the center of the sealing cover 20 to start the filtration operation.

[0063] The inner-ring protrusion 201 and the outer-ring protrusion 202 fix and limit the first-layer filter barrel 21 and the second-layer filter barrel 22 through threaded connection. This connection method is simple to disassemble. During use, it can be directly unscrewed to replace the filter bag or clean the first-layer filter barrel 21 and the second-layer filter barrel 22.

[0064] The entire double-layer filter 2 is fixedly embedded with the protruding part 12 provided on the barrel body 11 through the protruding limit block 23 provided at the top. This connection method can take out the double-layer filter 2 from the barrel body 10 at any time for cleaning, improving the filtration efficiency.

[0065] When the liquid enters the first-layer filter barrel 21 through the liquid inlet pipe 3, the first impurity filtration of the liquid is carried out.

[0066] The liquid after the first impurity filtration enters the second-layer filter barrel 22, and the second filtration of the impurities in the liquid is carried out. The liquid after two filtrations smoothly enters the filter barrel 1.

[0067] The first-layer filter barrel 21 and the second-layer filter barrel 22 provided in the double-layer filter 2 carry out more refined filtration of the liquid. In actual use, filter bags with required apertures can be added and sleeved as needed to control the filtration aperture.

[0068] Although the embodiments of the present invention have been disclosed as above, it is not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily achieved. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrated examples here.

Claims

1. A chemical solution filter, characterized in that: include: Filter barrel; A double-layer filter, which is detachably connected to the filter barrel; A hot water storage tank is arranged on the inner wall of the upper end of the filter barrel, and the hot water storage tank is wrapped on the outer wall of the double-layer filter, and there is a gap between the two; A liquid inlet pipe, which is connected and arranged at the top of the double-layer filter; A liquid outlet pipe is connected to the bottom end of the filter barrel and is provided with a control electric valve.

2. The chemical solution filter according to claim 1, characterized in that: The structure of the filter barrel comprises: A barrel body, on which a protrusion is provided and movably connected to the double-layer filter; A hot water storage tank is arranged on the inner wall of the upper end of the barrel, a water inlet is arranged at the side end, and a water outlet is arranged at the upper end, and the hot water storage tank is wrapped on the outer wall of the double-layer filter, and there is a gap between the two; The cone heat insulation plate has a hole in the middle and is located at the lower end of the double-layer filter.

3. The chemical solution filter according to claim 2, characterized in that: The structure of the double-layer filter comprises: A sealing cover, the center of which is threadedly fixed to the liquid inlet pipe, the sealing cover is provided with an inner ring protrusion and an outer ring protrusion, and the inner ring protrusion and the outer ring protrusion are both provided with threads; The first filter barrel is threadedly connected to the inner ring protrusion of the sealing cover; The second filter barrel is threadedly connected to the outer protrusion of the sealing cover; A protruding limit block is arranged at the top of the second-layer filter barrel and is embedded and connected with the protruding portion.

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