Gas filter with visual indication function

Abstract

The utility model discloses a gas filter with a visual indication function, which is characterized by comprising a visual component arranged at the end part of a shell, the visual component is communicated with an exhaust passage, and fluid enters the shell from an air inlet passage, is filtered by a filter element and leaves the filter through the exhaust passage. And the visual developing assembly for detecting the purity of the filtered gas is integrated at the top of the shell, so that personnel can conveniently know the service life state of the filter element.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure gas filters, and in particular to gas filters with visual indication function. Background Technology

[0002] High-pressure gases typically undergo filtration during compression and recovery. Since filter elements are consumables, they require replacement or maintenance after a prolonged period to maintain system efficiency. However, filter elements are usually encapsulated inside the filter, making it impossible to determine their wear and tear under normal circumstances. One current approach is to install testing equipment downstream of the filter to assess the purity of the filtered gas and estimate filter element wear. However, this external installation increases the complexity of the system design. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the purpose of this utility model is to provide a gas filter with visual indication function to solve the problem of not being able to observe the degree of filter material wear.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A gas filter with visual indication function includes a visual component located at the end of the housing. The visual component is connected to the exhaust duct. Fluid enters the housing from the intake duct, is filtered by the filter element, and then leaves the filter through the exhaust duct.

[0006] The visual assembly includes a pressure cap disposed at the end of the housing, the pressure cap communicating with the exhaust duct, an observation window being provided on the pressure cap, and an indicator component being placed on the side of the observation window facing the exhaust duct.

[0007] In a preferred embodiment of this utility model, the indicating component is a color-changing test paper.

[0008] In a preferred embodiment of the present invention, a lens is provided between the indicator component and the observation window.

[0009] In a preferred embodiment of the present invention, the exhaust duct is placed inside the top cover located at the upper end of the filter element, the upper part of the top cover has a boss extending into the pressure cover, and the indicator component is clamped and fixed by the boss and the observation window.

[0010] In a preferred embodiment of the present invention, the boss has a channel that connects the indicator component with the exhaust passage.

[0011] In a preferred embodiment of the present invention, a preload spring is further provided between the indicator component and the top cover.

[0012] In a preferred embodiment of this utility model, the lens is an acrylic lens.

[0013] The beneficial effects of this utility model are as follows:

[0014] The gas filter with visual indication function provided by this utility model integrates a visual color display component on the top of the housing to detect the purity of the filtered gas, making it convenient for personnel to know the life status of the filter element. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 This is a cross-sectional view of the present invention.

[0017] Figure 2 This is an exploded view indicating the location of the component. Detailed Implementation

[0018] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. The above description is for the purpose of simplifying the description of this utility model and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0019] Unless otherwise specified, the singular forms “a,” “the,” and “the” used in this specification include the plural forms. The terms “comprising,” “including,” and “containing” used in this specification indicate the presence of the claimed feature, but do not exclude the presence of one or more other features.

[0020] When a component is described in the specification as being "on", "fixed" to, "connected" to, or "joined" to another component, the component may be directly located on, fixed to, connected to, joined to, or in contact with the other component, or there may be an intermediate component present.

[0021] Exemplary embodiments of this application will now be described with reference to the accompanying drawings. However, it should be understood that this application can be presented in many different ways and is not limited to the embodiments described below. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide further additional embodiments. Throughout the drawings, the same reference numerals denote the same or functionally identical elements.

[0022] Figure 1 A gas filter with visual indication is shown. This filter is used to filter high-pressure gas and has a metal cylindrical housing 10 with a filter element 20 inside. A top cover 15 and a bottom cover 16 are respectively placed at both ends of the housing 10 to enclose the interior into a sealed space. A visual component 30 is also provided on the top cover 15, which is connected to the top cover 15 and provides feedback on the filtration index by contacting the gas. An air inlet 11 and an exhaust duct 12 are opened on the side of the housing 10. High-pressure gas enters the housing 10 through the air inlet 11 and moves downward along the gap between the housing 10 and the filter element 20 to the bottom 13, then upward through the filter element 20 to the top 14, and finally flows out through the exhaust duct 12 extending from inside the top cover 15.

[0023] Figure 2 The specific structure of the visual assembly 30 is shown. The visual assembly 30 mainly includes a pressure cap 31 and an indicator component 35 disposed within the pressure cap. An observation window 32 is provided on the pressure cap 15, and the indicator component 35 is placed inside the observation window 32, allowing the user to visually observe the indicator component 35 from above. Preferably, the indicator component 35 is a contact-type colorimetric test strip. When the efficiency of the filter element 20 decreases and gas filtration fails to meet design requirements, the test strip changes color, thereby informing the user that operation and replacement / maintenance of the filter element 20 are required.

[0024] The top cover 15 has an upward-protruding boss 15a, and a corresponding groove 33 is provided in the pressure cap 31. The pressure cap 31 is fitted onto the boss 15a through this pin-hole structure. Furthermore, the boss 15a is provided with a channel 15b communicating with the exhaust passage 12. The indicator component 35 is placed on the top of the boss 15a and clamped and fixed with the observation window 32 and connected to the channel 15b. In this way, when the gas flows through the exhaust passage 12, it reaches the indicator component 35 through the channel 15b and reacts with it.

[0025] In one embodiment, a spring 34 is also provided in the channel 15b to provide preload toward the indicating member 35.

[0026] In one embodiment, a lens 36 is disposed between the indicator component 35 and the observation window 32, and the lens 36 is preferably made of plexiglass.

Claims

1. A gas filter with visual indication function, characterized in that, The device includes a visual assembly located at the end of the housing, which is connected to an exhaust duct. Fluid enters the housing from the intake duct, is filtered by a filter element, and exits the filter through the exhaust duct. The visual assembly includes a cap located at the end of the housing, which is connected to the exhaust duct. An observation window is provided on the cap, and an indicator component is placed on the side of the observation window facing the exhaust duct.

2. The gas filter with visual indication function as described in claim 1, characterized in that, The indicator component is a color-changing test strip.

3. The gas filter with visual indication function as described in claim 1, characterized in that, A lens is provided between the indicator component and the viewing window.

4. The gas filter with visual indication function as described in any one of claims 1 to 3, characterized in that, The exhaust duct is placed inside the top cover located at the upper end of the filter element. The upper part of the top cover has a boss extending into the pressure cap. The indicator component is clamped and fixed by the boss and the observation window.

5. The gas filter with visual indication function as described in claim 4, characterized in that, The boss has a channel that connects the indicator component to the exhaust passage.

6. The gas filter with visual indication function as described in claim 4, characterized in that, It also includes a preload spring disposed between the indicator component and the top cover.

7. The gas filter with visual indication function as described in claim 3, characterized in that, The lens is an acrylic lens.

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