Gas purification tank

Abstract

The utility model discloses a gas purification tank, which is communicated with an external pipeline through a first gas passage and a second gas passage, and is characterized in that the first gas passage and the second gas passage are respectively connected with the side wall of the purification tank at the upper side and the lower side; screens are further arranged between the first air channel and the purification tank and between the second air channel and the purification tank. The feeding port and the discharging port are formed in the axis position of the tank body, the pair of screens are arranged on the side wall to be inserted in the radial direction and do not intersect with each other, the space utilization rate is considered while the design structure convenient to maintain is met, the number of special-shaped edge openings is reduced, and cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of gas purification tank, especially relates to a gas purification tank. BACKGROUND

[0002] In order to improve the purification efficiency of system, the tank volume of purification system is usually designed to be larger, and the total height is greater than or equal to 2200mm, the tank body of this height size is difficult to disassemble and assemble, which is not conducive to replace the internal purification filler.

[0003] Chinese utility model publication No. CN205650039U discloses a kind of gas purification tank, and opening is inclined in the top of tank body.But considering that tank body needs to have screen and unloading demand, this inclined opening structure is prone to cause screen and top maintenance opening interference. UTILITY MODEL CONTENT

[0004] In order to achieve the above purpose, the technical scheme adopted by the utility model is:

[0005] A kind of gas purification tank, the purification tank is communicated with external pipeline by first air passage and second air passage, the first air passage and the second air passage are connected with the side wall of the purification tank on the upper side and the lower side respectively, and screen is further provided between the first air passage, the second air passage and the purification tank.

[0006] In one preferred embodiment of the utility model, the screen is inserted into the interior of the purification tank along the radial direction.

[0007] In one preferred embodiment of the utility model, the screen includes first screen provided on the side of the first air passage and second screen provided on the side of the second air passage, and the front end of the first screen and the second screen is close to the axis of the purification tank but does not intersect each other.

[0008] In one preferred embodiment of the utility model, a discharge valve is provided at the bottom of the purification tank, and the discharge valve is located on the axis of the purification tank.

[0009] In one preferred embodiment of the utility model, a first flange is provided on the side wall of the purification tank, and the first air passage and the second air passage are fixed on the side wall by the second flange matched with the first flange.

[0010] In one preferred embodiment of the utility model, the outer diameter of the rear end of the screen is greater than the inner diameter of the first flange to be clamped between the first flange and the second flange for fixation.

[0011] In one preferred embodiment of the utility model, the height of the purification tank is greater than or equal to 2100mm.

[0012] The utility model discloses beneficial effect lies in:

[0013] The utility model provides a kind of gas purification tank, feed and discharge port are arranged in the axis position of tank body, a pair of screen is inserted in the radial of side wall and does not intersect each other, while meeting the convenience of maintenance design structure, space utilization and the number of reducing special-shaped edge opening are reduced to reduce cost. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced as follows.

[0015] Figure 1 It is the overall schematic view of the utility model.

[0016] Figure 2 It is Figure 1 A-A section view of it.

[0017] Figure 3 It is Figure 1 B-B section view of it.

[0018] Figure 4 It is Figure 1 C-C section view of it. DETAILED DESCRIPTION

[0019] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by terms "upper", "lower", "left", "right", "inner", "outer" and the like is based on the orientation or position relation shown in the drawings, and the above description is simplified for the convenience of describing the utility model, and is not indicative or suggestive of the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the utility model.

[0020] The singular forms "a", "said", and "the" used in the specification are intended to include plural forms unless clearly indicated otherwise. The terms "include", "comprise", and "contain" used in the specification mean the presence of the stated feature, but do not exclude the presence of one or more other features. The term "and / or" used in the specification includes any and all combinations of one or more of the related listed items.

[0021] In the specification, when one element is said to be "on", "fixed to", "connected to", "joined to" or the like another element, the element can be directly on, fixed to, connected to, joined to or in contact with the other element, or there can be an intermediate element.

[0022] It is to be understood that, although the terms "first", "second", etc. can be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. Thus, a first element could be termed a second element without departing from the teachings of the present application.

[0023] Exemplary embodiments of the present application will be described herein below with reference to the accompanying drawings. It is to be understood, however, that the application can be presented in many different forms and should not be limited to the embodiments described below. It is also to be understood that the embodiments disclosed herein can be combined in various ways, thereby providing more additional embodiments. In all the drawings, the same reference numerals refer to the same or similar elements.

[0024] Figure 1 The overall structure of the gas purification tank is shown. The purification tank 100 is used as a filter container in a high-pressure gas system. The first gas passage 200 and the second gas passage 300 are connected to the side wall of the purification tank 100 to deliver gas into the purification tank 100. Preferably, the second gas passage 300 is arranged below the first gas passage 200, which is beneficial for low-density gas, such as helium, to pass into the purification tank 100 from the lower side through the second gas passage 300, and to move from bottom to top by virtue of its lower density than air, and finally to flow out from the first gas passage 200. In order to improve the purification efficiency of the system, the volume of the purification tank 100 needs to be designed to be larger, and the total height thereof is greater than or equal to 2200 mm. Such a tank body of this height is inconvenient to disassemble and reassemble, and is not conducive to replacing the internal purification filler. Therefore, a discharge valve 120 is arranged at the bottom of the purification tank 100, and a removable top cover 110 is arranged at the top, so that the filler can be discharged through the bottom discharge valve 120 without disassembling the entire purification tank 100, and then the filler can be filled from the top cover 100.

[0025] Reference Figure 2 and Figure 3 Since the purification tank 100 will inject high-pressure gas during operation, a screen needs to be arranged between the first gas passage 200, the second gas passage 300 and the purification tank 100 to prevent the filler in the purification tank 100 from being washed out by the gas.

[0026] In combination with reference Figure 4In one embodiment, the first gas passage 200 and the second gas passage 300 are connected to the purification tank 100 through a flange structure. Specifically, a first flange 133 is arranged on the side wall of the purification tank 100, and the first flange 133 is connected to the second flanges 134 at the ends of the first gas passage 200 and the second gas passage 300. The first screen 131 is inserted into the purification tank 100 from the side of the first gas passage 200 through the flange structure, and the second screen 132 is inserted into the purification tank 100 from the side of the second gas passage 300 through the flange structure. The outer diameter of the rear end portion 132b of the second screen 132 is designed to be slightly larger than the inner diameter of the first flange 133, so as to be clamped on the first flange 133, facilitating future maintenance and disassembly; the first screen 131 is fixed by using the same structure as the second screen 132. The first screen 131 and the second screen 132 are inserted along the radial direction of the purification tank 100, and the front end portions 131a and 132a are close to the axis of the purification tank 100 without intersecting each other, so as to increase the contact surface between the screens and the filler in the tank and prevent the screens from being too deep into the tank body and hindering the discharge of the material above. The discharge valve 120 is coaxial with the axis of the purification tank 100, so as to improve the discharge efficiency.

[0027] The skilled person finds that although the inclined inlet on the side or top of the tank body is a common design, considering the discharge of the filler at both ends of the axis, the arrangement space of the screen and the pipeline, etc., only the structure in the above embodiment can simultaneously consider the maintenance convenience, space utilization and cost factors. The design structure of the purification tank 100 is suitable for high pressure, especially for high pressure working environment with a pressure less than 10 MPa.

[0028] It should be understood that the above-mentioned filler can be any substance for filtering or purifying special gas, such as molecular sieve, activated carbon, etc.

Claims

1. A gas purifying canister which communicates with an external line through a first gas passage and a second gas passage, characterized by, The first air channel and the second air channel are connected to the side wall of the purification tank on the upper side and the lower side respectively, and a screen is arranged between the first air channel, the second air channel and the purification tank.

2. A gas purification canister as claimed in claim 1, characterized in that The screen is inserted into the interior of the purification tank along the radial direction.

3. A gas purification canister as claimed in claim 2, characterized in that The screen comprises a first screen arranged on the side of the first air channel and a second screen arranged on the side of the second air channel, and the front end portions of the first screen and the second screen are close to the axis of the purification tank but do not intersect with each other.

4. A gas purification canister as claimed in claim 3, characterized in that A discharge valve is arranged at the bottom of the purification tank, and the discharge valve is located on the axis of the purification tank.

5. A gas purification canister according to any one of claims 1 to 4, wherein A first flange is arranged on the side wall of the purification tank, and the first air channel and the second air channel are fixed on the side wall through a second flange matched with the first flange.

6. A gas purification canister as claimed in claim 5, characterized in that The outer diameter of the rear end portion of the screen is greater than the inner diameter of the first flange so as to be clamped between the first flange and the second flange for fixation.

7. A gas purification canister as defined in claim 1, characterized in that The height of the purification tank is greater than or equal to 2100 mm.

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