Carbon dioxide buffer gas storage cabinet

By designing a carbon dioxide buffer gas storage cabinet with a variable sealing cavity, the problem of inflexible gas storage volume is solved, automatic adjustment and improved sealing performance are achieved, labor costs are reduced, and the stability and reliability of the system are improved.

CN223318879UActive Publication Date: 2025-09-09KUNMING ENG & RES INST OF NONFERROUS METALLURGY
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Patent Information

Application Number
CN202422403848.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-09-09
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

When faced with complex and changeable flue gas treatment conditions, traditional carbon dioxide buffer gas storage devices lack flexibility in gas storage capacity and are difficult to dynamically adjust according to actual production gas volume and reflux gas consumption, resulting in increased labor costs and reduced system operation reliability.

Method used

A carbon dioxide buffer gas storage tank is designed. The tank bottom plate, gas tank side plates, piston and rubber membrane sealing mechanism form a variable sealing cavity. Combined with a temperature sensor, an electric butterfly valve and a flow control valve, the gas storage volume can be automatically adjusted to ensure sealing performance and adapt to storage requirements under different working conditions.

Benefits of technology

It achieves good sealing performance during gas volume changes, reduces the risk of carbon dioxide leakage, reduces labor costs, and improves system operation stability and reliability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223318879U_ABST
Patent Text Reader

Abstract

The utility model provides a carbon dioxide buffer gas holder which comprises a gas holder body, a radar level meter, a gas inlet pipe, a gas outlet pipe, an adsorption tower return pipe and a gas holder bypass pipe, the radar level meter is arranged at the top of the gas holder body, the gas inlet pipe is arranged at the bottom of one side of the gas holder body, and the gas outlet pipe is arranged at the other side of the gas holder body. According to the carbon dioxide buffering gas holder, the gas holder bottom plate, the gas holder side plates, the piston and the rubber film sealing mechanism between the piston and the side plates jointly form a sealing cavity with the variable gas storage volume, it is guaranteed that good sealing performance is always kept in the gas amount changing process, and the risk of carbon dioxide leakage is reduced; and the gas storage volume is determined according to the production gas amount and the backflow gas amount, carbon dioxide storage requirements under different working conditions can be better met, adaptive adjustment is automatically carried out, and therefore the labor cost is reduced, and the stability and reliability of system operation are also improved.
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Description

Technical Field

[0001] The utility model relates to the field of nonferrous metallurgical furnace fume treatment, in particular to a carbon dioxide buffer gas storage cabinet. Background Art

[0002] In the flue gas treatment process of nonferrous metallurgical furnaces, efficient treatment and proper storage of carbon dioxide are crucial. With increasing environmental protection requirements and the increasing emphasis on CO2 emission reduction, there is an urgent need for a reliable device to properly store and precisely control the CO2 produced by the flue gas CO2 temperature-swing negative pressure adsorption twin-tower system.

[0003] In the existing technology, carbon dioxide buffer gas storage cabinets are mostly used to store the generated carbon dioxide. However, in actual applications, it is found that when faced with complex and changeable flue gas treatment conditions, the gas storage volume of traditional gas storage devices lacks flexibility and is difficult to dynamically adjust according to the actual production gas volume and the gas consumption of the carbon dioxide gas reflux cooling adsorption tower. Excessive reliance on manual intervention not only increases labor costs, but is also prone to operational errors, reducing the reliability of system operation.

[0004] Therefore, it is necessary to provide a carbon dioxide buffer gas storage cabinet to solve the above technical problems. Utility Model Content

[0005] The utility model provides a carbon dioxide buffer gas storage cabinet, which solves the problem of being unable to automatically perform dynamic adjustment, increasing labor costs and operating reliability.

[0006] In order to solve the above technical problems, the present invention provides a carbon dioxide buffer gas storage cabinet, comprising:

[0007] Gas cabinet body, radar cabinet level meter, gas inlet pipe, gas outlet pipe, adsorption tower reflux pipe and gas cabinet bypass pipe;

[0008] The radar cabinet level meter is arranged on the top of the gas cabinet body, the gas inlet pipe is arranged at the bottom of one side of the gas cabinet body, the gas outlet pipe is arranged on the other side of the gas cabinet body, the adsorption tower reflux pipe is arranged on one side of the gas outlet pipe, and the two ends of the gas cabinet bypass pipe are respectively connected to the gas inlet pipe and the gas outlet pipe.

[0009] Preferably, the gas cabinet body includes a gas cabinet bottom plate, a gas cabinet side plate, a gas cabinet top, a central air vent, a piston, a rubber membrane sealing mechanism between the piston and the side plate, a gas cabinet side plate manhole, and a piston leveling mechanism. The gas cabinet side plates are provided with four, and are fixedly installed on the four sides of the top of the gas cabinet bottom plate. The rubber membrane sealing mechanism between the piston and the side plate is fixedly installed on the top of the gas cabinet bottom plate and one side of the four gas cabinet side plates. The inner side surface of the rubber membrane sealing mechanism between the piston and the side plate is provided with a piston. The top of the four gas cabinet side plates are fixedly installed with a gas cabinet top. The top of the gas cabinet top is fixedly installed with a central air vent. The top of the gas cabinet top is provided with a piston leveling mechanism. One side of the gas cabinet side plate is fixedly installed with a gas cabinet side plate manhole.

[0010] Preferably, the gas inlet pipe includes an air intake main pipe, a temperature sensor and an air intake electric butterfly valve, the temperature sensor is fixedly installed on one side of the air intake main pipe, the air intake electric butterfly valve is fixedly installed on one end of the air intake main pipe, and the air intake electric butterfly valve is fixedly installed on the side of the gas cabinet body.

[0011] Preferably, the gas outlet pipe includes an outlet flow regulating valve, a carbon dioxide content analyzer, a gas outlet main pipe and an outlet flow meter, the carbon dioxide content analyzer is fixedly installed at one end of the outlet flow regulating valve, the gas outlet main pipe is fixedly installed at one end of the carbon dioxide content analyzer, and the outlet flow meter is fixedly installed at one end of the gas outlet main pipe.

[0012] Preferably, the adsorption tower reflux pipe includes a confluence pipe and a reflux pipe electric butterfly valve, the reflux pipe electric butterfly valve is fixedly installed on the side of the gas cabinet body, and the confluence pipe is fixedly installed on one end of the reflux pipe electric butterfly valve.

[0013] Preferably, the gas cabinet bypass pipe includes a bypass pipe and a bypass pipe electric butterfly valve, the bypass pipe electric butterfly valve is fixedly installed at one end of the bypass pipe, the bypass pipe electric butterfly valve is connected to the gas outlet pipe, and the bypass pipe is connected to the gas inlet pipe.

[0014] Preferably, a rust-proof bottom frame is fixedly installed on the bottom of the gas cabinet body, ventilation slots are provided on the front and back of the rust-proof bottom frame, and the interior of the rust-proof bottom frame is threadedly connected with an adjusting screw, a rotating plate is fixedly installed on the top of the adjusting screw, and a pad is fixedly installed on the bottom of the adjusting screw.

[0015] Compared with related technologies, the carbon dioxide buffer gas storage cabinet provided by the present invention has the following beneficial effects:

[0016] The utility model provides a carbon dioxide buffer gas storage cabinet, which comprises a gas cabinet bottom plate, a gas cabinet side plate, a piston and a rubber membrane sealing mechanism between the piston and the side plate to form a sealed cavity with a variable gas storage volume, thereby ensuring that good sealing performance is always maintained during the process of gas volume changes, thereby reducing the risk of carbon dioxide leakage; and determining the gas storage volume according to the production gas volume and the reflux gas volume, thereby being able to better adapt to the carbon dioxide storage needs under different working conditions, and automatically making corresponding adjustments, thereby reducing labor costs and improving the stability and reliability of system operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a first embodiment of a carbon dioxide buffer gas storage cabinet provided by the present utility model;

[0018] Figure 2 for Figure 1 The schematic diagram of the top view of the structure shown;

[0019] Figure 3 for Figure 1 The schematic diagram of the manhole structure on the side panel of the gas cabinet is shown;

[0020] Figure 4 for Figure 1 The schematic diagram of the intake main structure is shown;

[0021] Figure 5 for Figure 1 Schematic diagram of the gas outlet main structure shown;

[0022] Figure 6 for Figure 1 The schematic diagram of the confluence pipe structure shown;

[0023] Figure 7 for Figure 1 The schematic diagram of the bypass pipe structure shown;

[0024] Figure 8 This is a structural schematic diagram of a second embodiment of a carbon dioxide buffer gas storage cabinet provided by the present invention.

[0025] Reference numerals in the figure: 103b, gas cabinet body; 104b, radar cabinet level meter; 105b, gas inlet pipe; 106b, gas outlet pipe; 107b, adsorption tower reflux pipe; 108b, gas cabinet bypass pipe; 109b, gas cabinet bottom plate; 110b, gas cabinet side plate; 111b, gas cabinet top; 112b, central vent; 113b, piston; 114b, rubber membrane sealing mechanism between piston and side plate; 115b, gas cabinet side plate manhole; 116b, piston leveling mechanism; 117b , air intake main pipe; 118b, temperature sensor; 119b, air intake electric butterfly valve; 120b, outlet flow control valve; 121b, carbon dioxide content analyzer; 122b, air outlet main pipe; 123b, outlet flow meter; 124b, confluence pipe; 125b, return pipe electric butterfly valve; 126b, bypass pipe; 127b, bypass pipe electric butterfly valve; 801b, rust-proof bottom frame; 802b, ventilation slot; 803b, adjusting screw; 804b, rotating plate; 805b, pad. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0027] First embodiment

[0028] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 ,in, Figure 1 This is a structural schematic diagram of a first embodiment of a carbon dioxide buffer gas storage cabinet provided by the present utility model; Figure 2 for Figure 1 The schematic diagram of the top view of the structure shown; Figure 3 for Figure 1 The schematic diagram of the manhole structure on the side panel of the gas cabinet is shown; Figure 4 for Figure 1 The schematic diagram of the intake main structure is shown; Figure 5 for Figure 1 Schematic diagram of the gas outlet main structure shown; Figure 6 for Figure 1 The schematic diagram of the confluence pipe structure shown; Figure 7 for Figure 1 A schematic diagram of the bypass pipe structure is shown. A carbon dioxide buffer gas storage tank includes: a gas tank body 103b, a radar tank level meter 104b, a gas inlet pipe 105b, a gas outlet pipe 106b, an adsorption tower reflux pipe 107b, and a gas tank bypass pipe 108b;

[0029] The radar cabinet level meter 104b is arranged on the top of the gas cabinet body 103b, the gas inlet pipe 105b is arranged at the bottom of one side of the gas cabinet body 103b, the gas outlet pipe 106b is arranged on the other side of the gas cabinet body 103b, the adsorption tower reflux pipe 107b is arranged on one side of the gas outlet pipe 106b, and the two ends of the gas cabinet bypass pipe 108b are respectively connected to the gas inlet pipe 105b and the gas outlet pipe 106b.

[0030] The gas cabinet body 103b includes a gas cabinet bottom plate 109b, a gas cabinet side plate 110b, a gas cabinet top 111b, a central vent 112b, a piston 113b, a rubber film sealing mechanism 114b between the piston and the side plate, a gas cabinet side plate manhole 115b, and a piston leveling mechanism 116b. The gas cabinet side plates 110b are provided with four and are fixedly installed around the top of the gas cabinet bottom plate 109b. The top of the gas cabinet bottom plate 109b and one side of the four gas cabinet side plates 110b are fixedly installed. There is a rubber membrane sealing mechanism 114b between the piston and the side plate, and a piston 113b is provided on the inner side of the rubber membrane sealing mechanism 114b between the piston and the side plate. The top of the four gas cabinet side plates 110b are fixedly installed with a gas cabinet top 111b, and the top of the gas cabinet top 111b is fixedly installed with a central air vent 112b. The top of the gas cabinet top 111b is provided with a piston leveling mechanism 116b, and a gas cabinet side plate manhole 115b is fixedly installed on one side of the gas cabinet side plate 110b.

[0031] The gas inlet pipe 105b includes an air intake main pipe 117b, a temperature sensor 118b and an air intake electric butterfly valve 119b. The temperature sensor 118b is fixedly installed on one side of the air intake main pipe 117b, the air intake electric butterfly valve 119b is fixedly installed on one end of the air intake main pipe 117b, and the air intake electric butterfly valve 119b is fixedly installed on the side of the gas cabinet body 103b.

[0032] The gas outlet pipe 106b includes an outlet flow regulating valve 120b, a carbon dioxide content analyzer 121b, a gas outlet main pipe 122b and an outlet flow meter 123b. The carbon dioxide content analyzer 121b is fixedly installed at one end of the outlet flow regulating valve 120b, the gas outlet main pipe 122b is fixedly installed at one end of the carbon dioxide content analyzer 121b, and the outlet flow meter 123b is fixedly installed at one end of the gas outlet main pipe 122b.

[0033] The adsorption tower reflux pipe 107b includes a converging pipe 124b and a reflux pipe electric butterfly valve 125b. The reflux pipe electric butterfly valve 125b is fixedly installed on the side of the gas cabinet body 103b, and the converging pipe 124b is fixedly installed on one end of the reflux pipe electric butterfly valve 125b.

[0034] The gas cabinet bypass pipe 108b includes a bypass pipe 126b and a bypass pipe electric butterfly valve 127b. The bypass pipe electric butterfly valve 127b is fixedly installed at one end of the bypass pipe 126b. The bypass pipe electric butterfly valve 127b is connected to the gas outlet pipe 106b, and the bypass pipe 126b is connected to the gas inlet pipe 105b.

[0035] The CO2 buffer gas holder's storage capacity is determined by the production gas volume of the flue gas CO2 temperature-variable negative pressure adsorption dual-tower unit and the gas consumption of the CO2 gas reflux cooling adsorption tower. The maximum operating temperature of the gas holder is 70°C. The gas holder is designed as a circular rubber membrane sealed single-stage gas holder with a designed operating pressure of 3kPa.

[0036] The gas cabinet bottom plate 109b, the gas cabinet side plate 110b, the piston 113b, and the rubber membrane sealing mechanism 114b between the piston and the side plate together form a sealed cavity with a variable gas storage volume. When the air intake is greater than the air output, the gas cabinet piston 113b rises; when the air intake is less than the air output, the gas cabinet piston 113b falls.

[0037] Temperature sensor 118b, air intake electric butterfly valve 119b and bypass pipe electric butterfly valve interlock 127b. Under normal operating conditions, air intake electric butterfly valve 119b is open and bypass pipe electric butterfly valve interlock 127b is closed. When the carbon dioxide gas temperature exceeds 70°C, air intake electric butterfly valve 119b is closed and bypass pipe electric butterfly valve interlock 127b is opened.

[0038] The outlet flow regulating valve 120b is interlocked with the radar cabinet meter 104b. When the cabinet capacity is less than 5%, the outlet flow regulating valve 120b is closed.

[0039] The electric butterfly valve 125b of the return pipe is in the normally open state;

[0040] Temperature sensor 118b, air intake electric butterfly valve 119b and bypass pipe electric butterfly valve interlock 127b. Under normal working conditions, air intake electric butterfly valve 119b is open and bypass pipe electric butterfly valve interlock 127b is closed. When the carbon dioxide gas temperature exceeds 70°C, air intake electric butterfly valve 119b is closed and bypass pipe electric butterfly valve interlock 127b is opened.

[0041] Compared with related technologies, the carbon dioxide buffer gas storage cabinet provided by the present invention has the following beneficial effects:

[0042] The gas cabinet bottom plate 109b, the gas cabinet side plate 110b, the piston 113b and the rubber membrane sealing mechanism 114b between the piston and the side plate together form a sealed cavity with a variable gas storage volume, ensuring that good sealing performance is always maintained during the change of gas volume, reducing the risk of carbon dioxide leakage; and the gas storage volume is determined according to the production gas volume and the reflux gas volume, which can better adapt to the carbon dioxide storage needs under different working conditions and automatically make corresponding adjustments, thereby reducing labor costs and improving the stability and reliability of system operation.

[0043] Second embodiment

[0044] Please refer to Figure 8 Based on the carbon dioxide buffer gas storage tank provided in the first embodiment of this application, the second embodiment of this application proposes another carbon dioxide buffer gas storage tank. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0045] Specifically, the difference of the carbon dioxide buffer gas storage tank provided in the second embodiment of the present application is that, in a carbon dioxide buffer gas storage tank, a rust-proof bottom frame 801b is fixedly installed on the bottom of the gas tank body 103b, and ventilation grooves 802b are provided on the front and back of the rust-proof bottom frame 801b. The interior of the rust-proof bottom frame 801b is threadedly connected with an adjusting screw 803b, a rotating plate 804b is fixedly installed on the top of the adjusting screw 803b, and a pad 805b is fixedly installed on the bottom of the adjusting screw 803b.

[0046] The working principle of the carbon dioxide buffer gas storage cabinet provided by the utility model is as follows:

[0047] When in use, the gas cabinet body 103b is placed on the top of the rust-proof bottom frame 801b, and then the rust-proof bottom frame 801b is placed on the ground. The user then rotates the rotating plate 804b, so that the rotating plate 804b drives the adjusting screw 803b to be threadedly connected inside the rust-proof bottom frame 801b, and then the bottom of the adjusting screw 803b drives the pad 805b to move downward and contact the ground, thereby supporting the bottom of the rust-proof bottom frame 801b and adjusting the level.

[0048] Compared with related technologies, the carbon dioxide buffer gas storage cabinet provided by the present invention has the following beneficial effects:

[0049] By installing a rust-proof bottom frame 801b at the bottom of the gas cabinet body 103b, the bottom of the gas cabinet body 103b can be protected when in use. When in use, the user rotates the rotating plate 804b to drive the adjusting screw 803b to be threadedly connected inside the rust-proof bottom frame 801b, and the level of the gas cabinet body 103b can be adjusted to prevent it from tilting.

[0050] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A carbon dioxide buffer gas storage cabinet, characterized in that: include: Gas cabinet body, radar cabinet level meter, gas inlet pipe, gas outlet pipe, adsorption tower reflux pipe and gas cabinet bypass pipe; The radar cabinet level meter is arranged on the top of the gas cabinet body, the gas inlet pipe is arranged at the bottom of one side of the gas cabinet body, the gas outlet pipe is arranged on the other side of the gas cabinet body, the adsorption tower reflux pipe is arranged on one side of the gas outlet pipe, and the two ends of the gas cabinet bypass pipe are respectively connected to the gas inlet pipe and the gas outlet pipe.

2. A carbon dioxide buffer gas storage cabinet according to claim 1, characterized in that: The gas cabinet body includes a gas cabinet bottom plate, a gas cabinet side plate, a gas cabinet top, a central air vent, a piston, a rubber membrane sealing mechanism between the piston and the side plate, a gas cabinet side plate manhole, and a piston leveling mechanism. The gas cabinet side plates are provided with four, and are fixedly installed on the four sides of the top of the gas cabinet bottom plate. The top of the gas cabinet bottom plate and one side of the four gas cabinet side plates are fixedly installed with a rubber membrane sealing mechanism between the piston and the side plate. The inner side of the rubber membrane sealing mechanism between the piston and the side plate is provided with a piston. The top of the four gas cabinet side plates are fixedly installed with a gas cabinet top. The top of the gas cabinet top is fixedly installed with a central air vent. The top of the gas cabinet top is provided with a piston leveling mechanism. One side of the gas cabinet side plate is fixedly installed with a gas cabinet side plate manhole.

3. The carbon dioxide buffer gas storage cabinet according to claim 1, characterized in that: The gas inlet pipe includes an air intake main pipe, a temperature sensor and an air intake electric butterfly valve. The temperature sensor is fixedly installed on one side of the air intake main pipe, the air intake electric butterfly valve is fixedly installed on one end of the air intake main pipe, and the air intake electric butterfly valve is fixedly installed on the side of the gas cabinet body.

4. The carbon dioxide buffer gas storage cabinet according to claim 1, characterized in that: The gas outlet pipe includes an outlet flow regulating valve, a carbon dioxide content analyzer, a gas outlet main pipe and an outlet flow meter. The carbon dioxide content analyzer is fixedly installed at one end of the outlet flow regulating valve, the gas outlet main pipe is fixedly installed at one end of the carbon dioxide content analyzer, and the outlet flow meter is fixedly installed at one end of the gas outlet main pipe.

5. The carbon dioxide buffer gas storage cabinet according to claim 1, characterized in that: The adsorption tower reflux pipe includes a confluence pipe and a reflux pipe electric butterfly valve. The reflux pipe electric butterfly valve is fixedly installed on the side of the gas cabinet body, and the confluence pipe is fixedly installed on one end of the reflux pipe electric butterfly valve.

6. The carbon dioxide buffer gas storage cabinet according to claim 1, characterized in that: The gas cabinet bypass pipe includes a bypass pipe and a bypass pipe electric butterfly valve. The bypass pipe electric butterfly valve is fixedly installed at one end of the bypass pipe. The bypass pipe electric butterfly valve is connected to the gas outlet pipe, and the bypass pipe is connected to the gas inlet pipe.

7. The carbon dioxide buffer gas storage cabinet according to claim 1, characterized in that: A rust-proof bottom frame is fixedly installed on the bottom of the gas cabinet body, ventilation slots are provided on the front and back of the rust-proof bottom frame, and adjusting screws are threadedly connected to the interior around the rust-proof bottom frame. A rotating plate is fixedly installed on the top of the adjusting screw, and a pad is fixedly installed on the bottom of the adjusting screw.