High-purity carbon dioxide purification device

Abstract

The utility model discloses a high-purity carbon dioxide purification device, which relates to the technical field of gas purification and comprises a purification device body. The purifying device body comprises a first filtering device for filtering, a stabilizing assembly connected with the purifying device body, a connecting structure connected with the purifying device body and a second filtering device connected with the connecting structure; the utility model has the advantages that the three filter screens adopt a step-by-step fine structure to filter and purify, the purification effect is good, the pull rings are pulled to pull the three filter frames out of the inner box body so as to clean the filter screens, carbon dioxide firstly passes through the first connecting pipe and then enters the middle net piece and the second connecting pipe, and the carbon dioxide is filtered and purified. After use, the clamping ring is pulled out from the interior of the clamping groove, the second connecting pipe and the middle net piece are rotated anticlockwise, the first connecting pipe, the second connecting pipe and the middle net piece can be detached and cleaned, and the filtering mechanism is easy and convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of gas purification, in particular to a high-purity carbon dioxide purification device. Background Art

[0002] With the development of industry and the need for environmental protection, the requirements for the purity of carbon dioxide are getting higher and higher. Compressed air, that is, air compressed by external force, is compressible. Air that has been compressed by the air compressor to reduce its volume and increase its pressure is called compressed air. Compressed air is an important power source. Compared with other energy sources, it has the following obvious characteristics: clear and transparent, easy to transport, no special harmful properties, no fire hazard, not afraid of overload, can work in many adverse environments, and air is everywhere on the ground and inexhaustible; carbon dioxide, a carbon oxide, is a colorless and odorless or colorless and odorless gas at room temperature and pressure, and its aqueous solution has a slightly sour taste. It is also a common greenhouse gas and a component of air. Carbon dioxide can generally be produced by high-temperature calcination of limestone or by the reaction of limestone and dilute hydrochloric acid. It is mainly used in refrigerating perishable foods, as a refrigerant, making carbonized soft drinks, and as a solvent for homogeneous reactions.

[0003] After searching, the applicant discovered a Chinese patent disclosure of "a carbon dioxide purification device" with the publication (announcement) number "CN 20714283 U". This patent is mainly connected to the condenser through a refrigerant inlet pipe and a refrigerant return pipe. The adsorbent used has a high adsorption catalytic efficiency and can meet production efficiency. However, when using this carbon dioxide removal and purification device, the compressed air is not treated in advance and is directly discharged into the device for reaction, resulting in incomplete purification work and affecting the purification effect. Moreover, after long-term operation, the filter mechanism is relatively troublesome to replace, which affects the normal use of the device and causes a reduction in purification efficiency. Therefore, we propose a high-purity carbon dioxide purification device. Utility Model Content

[0004] The purpose of the utility model is to provide a high-purity carbon dioxide purification device.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a high-purity carbon dioxide purification device, comprising a purification device body, the purification device body comprising a first filtering device for filtering, a stabilizing assembly connected to the purification device body, a connecting structure connected to the purification device body, and a second filtering device connected to the connecting structure; a base is provided at the bottom of the purification device body, and a filter box, an intermediate box, and a storage box are provided on the upper end surface of the base from left to right; a liquid nitrogen box is provided on the top of the storage box;

[0006] The connection structure includes a first delivery pipe, a first air suction pump, a second delivery pipe, a second air suction pump, a liquid nitrogen delivery pipe, a third air suction pump, a carbon dioxide outlet pipe and a fourth air suction pump, the first delivery pipe is fixed to the right end of the first filter device, the first air suction pump is fixed to the first delivery pipe, the second delivery pipe is arranged between the intermediate box and the storage box, the second air suction pump is fixed to the second delivery pipe, the liquid nitrogen delivery pipe is fixed to the top of the intermediate box, the third air suction pump is fixed to the liquid nitrogen delivery pipe, the carbon dioxide outlet pipe is fixed to the right end of the storage box, and the fourth air suction pump is fixed to the carbon dioxide outlet pipe;

[0007] In one embodiment of the present invention: the second filter device includes a filter frame, a placement plate, a filter screen, a front plate and a pull ring, the placement plate is pulled and connected to the inside of the filter frame, the three filter screens are fixed inside the filter frame, and the apertures of the three filter screens are set in a step-by-step fine manner.

[0008] As a further solution of the present invention: an air intake pipe is fixedly connected to the left side of the filter box, and a control component is provided in the middle of the upper end of the base.

[0009] As a further solution of the present invention: a bottom plate is fixed between the filter box and the storage box, an inner box is fixed inside the filter box, a curved door panel is provided at the front of the inner box, and two fixing bolts are provided at the four corners of the curved door panel.

[0010] As a further solution of the present invention: the first filtering device includes a first connecting pipe, a fixing sleeve, a groove, an intermediate mesh, a clamping ring, a second connecting pipe and an external thread, the air intake pipe includes a first connecting pipe and a second connecting pipe, the groove is opened inside the fixing sleeve, the intermediate mesh is arranged between the fixing sleeve and the second connecting pipe, the clamping ring is fixed to the right end of the intermediate mesh, the interior of the intermediate mesh is provided with an internal thread matching the external thread, the internal thread is opened on the outside of the second connecting pipe, the intermediate mesh, the fixing sleeve, the second connecting pipe and the air intake pipe are interconnected.

[0011] As a further solution of the present invention: the stabilization group includes a support ring, a support column, a bottom pad and a fixing bolt. The support column is arranged at the four corners of the lower end of the support ring, the bottom pad is fixed to the bottom end of the support column, and the fixing bolt is evenly arranged on the bottom pad.

[0012] By adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model uses a step-by-step fine structure to filter and purify through three filter screens, with good purification effect. The filter screens can be cleaned by pulling the pull ring to pull the three filter frames out of the inner box. Carbon dioxide first passes through the first connecting pipe and then enters the middle mesh and the second connecting pipe. After use, the clamping ring is pulled out from the inside of the clamping groove, and the second connecting pipe and the middle mesh are rotated counterclockwise to disassemble and clean the first connecting pipe, the second connecting pipe and the middle mesh. The filter mechanism is simple and convenient to replace.

[0014] 2. The utility model sets an intermediate box, and the high-density liquid air sinks to the bottom and enters the interior of the storage box through the second air suction pump. The low-density liquid air enters the interior of the liquid nitrogen box through the liquid nitrogen delivery pipe by starting the third air suction pump, further improving the purification effect and filtering effect, making the purification work thorough and having a good purification effect.

[0015] Other advantages, objectives and features of the present invention will be described in part in the following description and will be apparent to those skilled in the art based on an examination of the following or may be learned from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the present utility model;

[0017] Figure 2 for Figure 1 A three-dimensional diagram of point B in the middle;

[0018] Figure 3 This is a schematic diagram of the connection relationship between the connecting pipe and the fourth air suction pump in an embodiment of the present utility model;

[0019] Figure 4 for Figure 3 A three-dimensional schematic diagram;

[0020] Figure 5 This is a schematic diagram of the connection relationship between the base plate and the connection structure in the embodiment of the utility model;

[0021] Figure 6 This is a schematic diagram of the inner box and filter assembly in an embodiment of the present utility model;

[0022] Figure 7 This is a three-dimensional schematic diagram of the filter assembly in the embodiment of the present utility model;

[0023] Figure 8 This is a schematic diagram of the curved door panel and fixing bolts in an embodiment of the present utility model.

[0024] In the figure: 1. Purification device body; 2. Base; 3. Filter box; 4. Intermediate box; 5. Storage box; 6. Liquid nitrogen box; 7. Inlet pipe; 8. First filter device; 81. First connecting pipe; 82. Fixing sleeve; 821. Slot; 83. Intermediate mesh; 831. Snap ring; 832. Internal thread; 84. Second connecting pipe; 841. External thread; 9. Stabilizing assembly; 91. Support ring; 92. Support column; 93. Bottom pad; 94. Fixing bolt 1; 10. Control assembly; 11. Bottom plate 12. Connection structure; 121. First delivery pipe; 122. First air pump; 123. Second delivery pipe; 124. Second air pump; 125. Liquid nitrogen delivery pipe; 126. Third air pump; 127. Carbon dioxide outlet pipe; 128. Fourth air pump; 13. Inner box; 14. Second filter device; 141. Filter frame; 142. Placement plate; 143. Filter screen; 144. Front plate; 145. Pull ring; 15. Arc door panel; 151. Second fixing bolt; 16. Fifth air pump. DETAILED DESCRIPTION

[0025] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0026] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] Please see the attached Figure 1 -Attached Figure 8 The utility model discloses a high-purity carbon dioxide purification device, including a purification device body 1, the purification device body 1 includes a first filtering device 8 for filtering, a stabilizing component 9 connected to the purification device body 1, a connecting structure 12 connected to the purification device body 1 and a second filtering device 14 connected to the connecting structure 12, a base 2 is provided at the bottom of the purification device body 1, and a filter box 3, an intermediate box 4 and a storage box 5 are provided on the upper end surface of the base 2 from left to right, a liquid nitrogen box 6 is provided on the top of the storage box 5, an air intake pipe 7 is fixedly connected to the left side of the filter box 3, a control component 10 is provided at the middle part of the upper end of the base 2, a bottom plate 11 is fixed between the filter box 3 and the storage box 5, an inner box 13 is fixed inside the filter box 3, and an arc-shaped door panel 15 is provided at the front of the inner box 13, and fixing bolts 151 are provided at the four corners of the arc-shaped door panel 15 to achieve sealing of the arc-shaped door panel 15;

[0028] In one embodiment of the present utility model: the first filter device 8 includes a first connecting pipe 81, a fixing sleeve 82, a clamping groove 821, an intermediate mesh 83, a clamping ring 831, a second connecting pipe 84 and an external thread 841, and the air intake pipe 7 includes the first connecting pipe 81 and the second connecting pipe 84, the clamping groove 821 is opened inside the fixing sleeve 82, the intermediate mesh 83 is arranged between the fixing sleeve 82 and the second connecting pipe 84, the clamping ring 831 is fixed to the right end of the intermediate mesh 83, the interior of the intermediate mesh 83 is opened with an internal thread 832 matching the external thread 841, and the internal thread 832 is opened on the outside of the second connecting pipe 84, and the intermediate mesh 83, the fixing sleeve 82, the second connecting pipe 84 and the air intake pipe 7 are interconnected;

[0029] In one embodiment of the present invention, the stabilizing assembly 9 includes a support ring 91, support columns 92, a base pad 93, and fixing bolts 94. The support columns 92 are disposed at the four corners of the lower end of the support ring 91. The base pad 93 is fixed to the bottom end of the support columns 92. The fixing bolts 94 are evenly disposed on the base pad 93.

[0030] In one embodiment of the present utility model: the connecting structure 12 includes a first delivery pipe 121, a first air pump 122, a second air pump 123, a second air pump 124, a liquid nitrogen delivery pipe 125, a third air pump 126, a carbon dioxide outlet pipe 127 and a fourth air pump 128, the first delivery pipe 121 is fixed to the right end of the first filter device 8, the first air pump 122 is fixed to the first delivery pipe 121, the second delivery pipe 123 is arranged between the intermediate box 4 and the storage box 5, the second air pump 124 is fixed to the second delivery pipe 123, the liquid nitrogen delivery pipe 125 is fixed to the top of the intermediate box 4, the third air pump 126 is fixed to the liquid nitrogen delivery pipe 125, the carbon dioxide outlet pipe 127 is fixed to the right end of the storage box 5, and the fourth air pump 128 is fixed to the carbon dioxide outlet pipe 127;

[0031] In one embodiment of the present invention, the second filter device 14 includes a filter frame 141, a placement plate 142, a filter screen 143, a front plate 144, and a pull ring 145. The placement plate 142 is pulled and connected to the inside of the filter frame 141. The three filter screens 143 are fixed inside the filter frame 141, and the apertures of the three filter screens 143 are finely adjusted in a step-by-step manner.

[0032] Example 1, please refer to the attached Figure 1 -Attached Figure 8The three filter screens 143 use a step-by-step fine structure to filter and purify, with good purification effect. Pull the pull ring 145 to pull the three filter frames 141 out of the outside of the inner box 13 to clean the filter screens 143. Carbon dioxide first passes through the first connecting pipe 81 and then enters the middle mesh 83 and the second connecting pipe 84. After use, pull the clamping ring 831 out of the inside of the clamping groove 821, rotate the second connecting pipe 84 and the middle mesh 83 counterclockwise, and the first connecting pipe 81, the second connecting pipe 84 and the middle mesh 83 can be disassembled and cleaned.

[0033] Example 2, please refer to the attached Figure 1 -Attached Figure 8 By setting up the intermediate box 4, the liquid air with high density sinks to the bottom and enters the interior of the storage box 5 through the second air pump 124, and the liquid air with low density enters the interior of the liquid nitrogen box 6 through the liquid nitrogen delivery pipe 125 by starting the third air pump 126, further improving the purification and filtering effects;

[0034] The present invention also provides a method for using a high-purity carbon dioxide purification device, comprising the following steps:

[0035] S1. First, carbon dioxide gas enters the first connecting pipe 81, the intermediate mesh 83, and the second connecting pipe 84 through the air inlet pipe 7 for preliminary filtration. Then, it is filtered again through the filter box 3, the intermediate box 4, and the storage box 5. Finally, the fifth air suction pump 16 is started to absorb air, completing the purification operation.

[0036] S2. The carbon dioxide gas is driven through the intermediate mesh 83, through the first connecting tube 81, the fixing sleeve 82, the clamping groove 821, the intermediate mesh 83, the clamping ring 831, the internal thread 832, the second connecting tube 84, and the external thread 841, to perform preliminary filtration. Then, the clamping ring 831 is pulled out from the inside of the clamping groove 821, and the second connecting tube 84 and the intermediate mesh 83 are rotated counterclockwise to complete the disassembly and cleaning of the first connecting tube 81, the second connecting tube 84, and the intermediate mesh 83.

[0037] S3. The staff member pulls the pull ring 145, which drives the filter frame 141 to be pulled out from the placement plate 142. The three filter frames 141 are pulled out of the inner box 13 in sequence. The fixing bolt 151 and the curved door panel 15 are removed counterclockwise to replace and clean the three filter screens 143 with different apertures.

[0038] S4. The carbon dioxide gas is stored in the storage box 5. The carbon dioxide gas with high density enters the interior of the liquid nitrogen box 6 through the liquid nitrogen delivery pipe 125. Finally, the carbon dioxide gas with low density is discharged through the carbon dioxide outlet pipe 127 to achieve collection and storage.

[0039] Example 3, please refer to the attached Figure 1 -Attached Figure 8 By setting up a liquid nitrogen box 6 to store liquid nitrogen and a storage box 5 to collect carbon dioxide, the compressed air can be processed, the purification work is thorough, and the purification effect is good;

[0040] Specifically, the three filters 143 are used to filter and purify the compressed air using a step-by-step fine structure, which can effectively remove impurities in the compressed air, so that more purified carbon dioxide gas can be obtained.

[0041] Specifically, the filter box 3 is supported by the base pad 93 and the fixing bolt 94 in the stabilizing assembly 9, so that the support stability of the filter box 3 and the storage box 5 is better;

[0042] Working principle:

[0043] First, when filtering carbon dioxide gas, compressed air enters the first connecting pipe 81, the middle mesh 83 and the second connecting pipe 84 through the air inlet pipe 7, and enters the inner box of the filter box 3. It is filtered step by step through the three gradually finer filter screens 143 to achieve preliminary purification. Subsequently, the compressed air controls the first air pump 122 through the control component 10 to enter the interior of the intermediate box 4. At this time, the gas with high density exists at the bottom of the intermediate box 4 and enters the interior of the storage box 5 through the second air pump 124. The liquid air with low density enters the interior of the liquid nitrogen box 6 through the liquid nitrogen delivery pipe 125 by starting the third air pump 126. Finally, the staff starts the fifth air pump 16 through the control component 10 to extract the carbon dioxide gas. The purification effect and filtering effect are further improved by the second filtering device 14.

[0044] After using the purification device body for filtering, when the three filter screens 143 need to be cleaned and disassembled, the pull ring 145 is pulled to pull the three filter frames 141 out of the outside of the inner box 13 to clean the filter screens 143. When the air inlet pipe 7 needs to be disassembled and cleaned, the clamping ring 831 can be pulled out from the inside of the clamping groove 821, and the second connecting pipe 84 and the middle mesh 83 can be rotated counterclockwise to disassemble and clean the first connecting pipe 81, the second connecting pipe 84 and the middle mesh 83, and the cleaning effect is good.

[0045] At this point, the entire workflow ends.

[0046] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0048] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0049] For those skilled in the art, it is possible to make various changes, modifications, substitutions and variations to these embodiments without departing from the principles and spirit of the present invention, and they still fall within the scope of protection of the present invention.

Claims

1. A high-purity carbon dioxide purification device, comprising a purification device body (1), characterized in that: The purification device body (1) comprises a first filtering device (8) for filtering, a stabilizing assembly (9) connected to the purification device body (1), a connecting structure (12) connected to the purification device body (1), and a second filtering device (14) connected to the connecting structure (12); a base (2) is provided at the bottom of the purification device body (1); a filtering box (3), an intermediate box (4), and a storage box (5) are provided on the upper end surface of the base (2) from left to right; and a liquid nitrogen box (6) is provided on the top of the storage box (5); The connecting structure (12) comprises a first delivery pipe (121), a first air pump (122), a second delivery pipe (123), a second air pump (124), a liquid nitrogen delivery pipe (125), a third air pump (126), a carbon dioxide outlet pipe (127) and a fourth air pump (128). The first delivery pipe (121) is fixed to the right end of the first filter device (8), the first air pump (122) is fixed to the first delivery pipe (121), and the second delivery pipe (125) is fixed to the right end of the first filter device (8). The delivery pipe (123) is arranged between the intermediate box (4) and the storage box (5), the second air suction pump (124) is fixed on the second delivery pipe (123), the liquid nitrogen delivery pipe (125) is fixed on the top of the intermediate box (4), the third air suction pump (126) is fixed on the liquid nitrogen delivery pipe (125), the carbon dioxide outlet pipe (127) is fixed on the right end of the storage box (5), and the fourth air suction pump (128) is fixed on the carbon dioxide outlet pipe (127).

2. A high-purity carbon dioxide purification device according to claim 1, characterized in that: The second filtering device (14) comprises a filter frame (141), a placement plate (142), a filter screen (143), a front plate (144) and a pull ring (145); the placement plate (142) is pulled and connected to the inside of the filter frame (141); the three filter screens (143) are fixed inside the filter frame (141); and the apertures of the three filter screens (143) are finely set in stages.

3. The high-purity carbon dioxide purification device according to claim 1, characterized in that: An air inlet pipe (7) is fixedly connected to the left side of the filter box (3), and a control component (10) is provided at the middle of the upper end of the base (2).

4. A high-purity carbon dioxide purification device according to claim 3, characterized in that: A bottom plate (11) is fixed between the filter box (3) and the storage box (5), an inner box (13) is fixed inside the filter box (3), a curved door panel (15) is provided at the front of the inner box (13), and two fixing bolts (151) are provided at the four corners of the curved door panel (15).

5. The high-purity carbon dioxide purification device according to claim 1, characterized in that: The first filtering device (8) comprises a first connecting pipe (81), a fixing sleeve (82), a clamping groove (821), an intermediate mesh (83), a clamping ring (831), a second connecting pipe (84) and an external thread (841); the air intake pipe (7) comprises a first connecting pipe (81) and a second connecting pipe (84); the clamping groove (821) is provided inside the fixing sleeve (82); the intermediate mesh (83) is arranged between the fixing sleeve (82) and the second connecting pipe (84); the clamping ring (831) is fixed to the right end of the intermediate mesh (83); an internal thread (832) matching the external thread (841) is provided inside the intermediate mesh (83); the internal thread (832) is provided outside the second connecting pipe (84); the intermediate mesh (83), the fixing sleeve (82), the second connecting pipe (84) and the air intake pipe (7) are interconnected.

6. The high-purity carbon dioxide purification device according to claim 1, characterized in that: The stabilizing assembly (9) comprises a support ring (91), a support column (92), a bottom pad (93) and a fixing bolt (94). The support column (92) is arranged at the four corners of the lower end of the support ring (91), the bottom pad (93) is fixed to the bottom end of the support column (92), and the fixing bolt (94) is evenly arranged on the bottom pad (93).

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