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CN-224207970-U - Accurate controlling means of gas flow in dimethyl carbonate production

CN224207970UCN 224207970 UCN224207970 UCN 224207970UCN-224207970-U

Abstract

The utility model relates to the technical field of gas flow control and discloses a gas flow accurate control device in dimethyl carbonate production, which comprises a reactor, a gas guide cover, a guide plate and a driving piece, wherein the gas guide cover is arranged on the reactor and guides gas, the guide plate is arranged in an inner cavity of the gas guide cover, the position of a sealing piece can be adjusted through the matching among the gas guide cover, a flow adjusting mechanism and the guide plate, the space for the gas to pass through is gradually increased in the moving process of the sealing piece, when the sealing piece reaches half of a total stroke, the gas supply flow speed is the maximum, and when the sealing piece performs the second half of the stroke, the gas flow space is gradually reduced until the sealing piece is closed.

Inventors

  • WANG XUEHU

Assignees

  • 上海派胜信息科技有限公司

Dates

Publication Date
20260508
Application Date
20250604

Claims (7)

  1. 1. The utility model provides a gas flow accurate control device in dimethyl carbonate production which characterized in that includes: a reactor (1) and a gas guide cover (2) which is arranged on the reactor (1) and guides gas; The flow guide plate (5) is arranged in the inner cavity of the gas guide cover (2), and the flow regulating mechanism (3) is used for regulating the gas flow by regulating the distance between the flow guide plate and the flow guide plate (5); The flow regulating mechanism (3) comprises a driving piece arranged at one end of the gas guide cover (2) and a sealing piece (33) which is arranged on the guide plate (5) through the driving piece, and the section of the sealing piece (33) is I-shaped.
  2. 2. The device for precisely controlling the gas flow in the production of the dimethyl carbonate, as set forth in claim 1, is characterized in that a first sealing groove (51) is formed in one side of the guide plate (5), a second sealing groove (52) is formed in the other side of the guide plate (5), and a gas hole (53) for gas circulation is formed between the first sealing groove (51) and the second sealing groove (52).
  3. 3. The precise control device for gas flow in dimethyl carbonate production according to claim 2, wherein the sealing piece (33) comprises a sealing main disc (331), a connecting shaft (334) and a sealing secondary disc (335), two ends of the connecting shaft (334) are fixedly connected with the sealing main disc (331) and the sealing secondary disc (335) respectively, one side of the sealing main disc (331) is fixedly connected with a first sealing cone pad (336) which is matched with the first sealing groove (51), and one side of the sealing secondary disc (335) is fixedly connected with a second sealing cone pad (337) which is matched with the second sealing groove (52).
  4. 4. The device for precisely controlling the gas flow in the production of the dimethyl carbonate, which is disclosed in claim 3, is characterized in that the driving piece comprises a cylinder (31) and a reinforcing disc (32), the cylinder (31) is arranged on one side of the gas guide cover (2), the telescopic end of the cylinder (31) is positioned in the inner cavity of the gas guide cover (2) and fixed on one side of the reinforcing disc (32), the inner cavity of the gas guide cover (2) is provided with a corrugated sheath (35) for protecting a telescopic rod of the cylinder (31), and the reinforcing disc (32) is fixedly connected on the other side of the sealing main disc (331).
  5. 5. The device for precisely controlling the gas flow in the production of dimethyl carbonate according to claim 4, wherein three groups of connecting lugs (332) are arranged on the outer side of the sealing main disc (331), jacks (333) are formed in the three groups of connecting lugs (332), and a stable guide rod (34) fixed on one side of the guide plate (5) is inserted into each group of jacks (333).
  6. 6. The device for precisely controlling the gas flow in the production of the dimethyl carbonate, which is disclosed in claim 1, is characterized in that the gas guide cover (2) is mainly formed by integrally forming a pipe barrel (21), a gas collecting cover (22) and a connecting pipe (23), the guide plate (5) is fixedly connected to the inner cavity of the pipe barrel (21), and an air inlet pipe (6) is arranged at the outer side of the pipe barrel (21).
  7. 7. The device for precisely controlling the gas flow in the production of dimethyl carbonate according to claim 6, further comprising a flow detection mechanism (4) arranged on the connecting pipe (23), wherein the flow detection mechanism (4) comprises a gas flow sensor (41) and a gas flow meter (42), and the gas flow sensor (41) is arranged in the inner cavity of the connecting pipe (23).

Description

Accurate controlling means of gas flow in dimethyl carbonate production Technical Field The utility model relates to the technical field of gas flow control, in particular to a gas flow accurate control device in dimethyl carbonate production. Background The dimethyl carbonate is an organic matter, is a chemical raw material with low toxicity, excellent environmental protection performance and wide application, is an important organic synthesis intermediate, has various reaction performances because the molecular structure contains carbonyl, methyl, methoxy and other functional groups, has the characteristics of safe and convenient use, less pollution, easy transportation and the like in production, is a green chemical product with development prospect because the dimethyl carbonate has low toxicity, and is usually used in the process of producing the dimethyl carbonate by an oxidative carbonylation method, and because the gas needed to be added into a reaction kettle is needed in the process of producing the dimethyl carbonate, the mode of adding the gas conventionally needs a valve to carry out an opening and closing stroke, so that the gas addition in the process of reacting the dimethyl carbonate is realized; However, the valve is complicated in operation steps in the opening and closing process, the stroke times of the valve are increased, the abrasion resistance of the valve is reduced, the leakage of raw material gas in the production process of the dimethyl carbonate is caused, and further, the excessive supplement of the raw material gas in the reactor is caused to generate local overheating, so that the explosion of the reactor is easily caused, and therefore, the accurate control device for the gas flow in the production process of the dimethyl carbonate is required. Disclosure of utility model The utility model aims to provide a gas flow accurate control device in the production of dimethyl carbonate, which can adjust the flow rate of gas by arranging a pneumatic adjusting mechanism, is convenient for the supply and stop of the gas, shortens the opening and closing stroke of the gas supply, reduces abrasion, avoids the leakage of raw material gas, and improves the accuracy of gas flow control, thereby improving the production efficiency of the dimethyl carbonate and solving the problems in the background art. In order to achieve the purpose, the utility model provides the following technical scheme that the gas flow accurate control device in the production of the dimethyl carbonate comprises the following components: the reactor and a gas guide sleeve which is arranged on the reactor and guides the gas; the flow regulating mechanism is arranged in the inner cavity of the gas guide sleeve and used for regulating the gas flow by regulating the distance between the flow regulating mechanism and the flow regulating mechanism; The flow regulating mechanism comprises a driving piece arranged at one end of the gas guide cover and a sealing piece which is arranged on the guide plate through the driving piece in a regulating mode, and the section of the sealing piece is I-shaped. Preferably, a first sealing groove is formed in one side of the guide plate, a second sealing groove is formed in the other side of the guide plate, and an air hole for air circulation is formed between the first sealing groove and the second sealing groove. Preferably, the sealing member comprises a sealing main disc, a connecting shaft and a sealing secondary disc, wherein two ends of the connecting shaft are fixedly connected with the sealing main disc and the sealing secondary disc respectively, one side of the sealing main disc is fixedly connected with a first sealing cone pad which is matched with the first sealing groove, and one side of the sealing secondary disc is fixedly connected with a second sealing cone pad which is matched with the second sealing groove. Preferably, the driving piece comprises an air cylinder and a reinforcing disc, the air cylinder is arranged on one side of the air guide sleeve, the telescopic end of the air cylinder is positioned in the inner cavity of the air guide sleeve and fixed on one side of the reinforcing disc, the inner cavity of the air guide sleeve is provided with a corrugated sheath for protecting the telescopic rod of the air cylinder, and the reinforcing disc is fixedly connected on the other side of the sealing main disc. Preferably, three groups of connecting lug blocks are arranged on the outer side of the sealing main disc, jacks are formed in the three groups of connecting lug blocks, and a stable guide rod fixed on one side of the guide plate is inserted in each group of jacks. Preferably, the gas guide cover is mainly formed by integrally forming a pipe barrel, a gas collecting cover and a connecting pipe, the guide plate is fixedly connected to the inner cavity of the pipe barrel, and an air inlet pipe is arranged on the outer side of the pipe barrel. Preferably, the d