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CN-224207990-U - Reation kettle is used in surfactant production

CN224207990UCN 224207990 UCN224207990 UCN 224207990UCN-224207990-U

Abstract

The utility model belongs to the field of chemical machinery, and particularly relates to a reaction kettle for producing a surfactant. The utility model provides a reaction kettle for producing a surfactant, which comprises a kettle body, wherein a tensioning rib is arranged outside the kettle body and is in hooping connection with the kettle body, the tensioning rib is wound on the outer side of the kettle body along the height of the kettle body for a plurality of circles, the tensioning rib is used for generating pre-compression stress on the surface of the kettle body, when the kettle body is in a high-pressure state, compared with a common high-pressure reaction kettle, the high-pressure reaction kettle with the tensioning rib is wound on the whole surface of the kettle body due to the fact that the tensioning rib is wound on the whole surface of the kettle body, the tensioning rib can generate tension to hooping the outer part of the kettle body, and the pressure opposite to the pressure in the kettle body is applied to the kettle body, so that the pressure born by the kettle body is lightened, and the service life of the kettle body is prolonged.

Inventors

  • CAI ZHENYUN
  • HU FENGTIAN
  • ZHANG LEI
  • WANG ZHONGYANG

Assignees

  • 浙江国盛源实业有限公司

Dates

Publication Date
20260508
Application Date
20250519

Claims (10)

  1. 1. The utility model provides a reation kettle is used in surfactant production, its characterized in that, includes the cauldron body (2), cauldron body (2) outside is provided with tensioning muscle (3), tensioning muscle (3) are connected with cauldron body (2) hooping, tensioning muscle (3) are twined many rings in cauldron body (2) outside along cauldron body (2) height, tensioning muscle (3) are used for producing prestressing force to cauldron body (2) surface.
  2. 2. A reaction kettle for producing a surfactant according to claim 1, wherein the tensioning bars (3) are made of a linear material having a good fatigue life.
  3. 3. The reaction kettle for producing surfactant according to claim 1, wherein a protective shell is arranged outside the kettle body (2), the protective shell is fixedly connected with the outside of the kettle body (2), a cavity (7) is formed between the protective shell and the kettle body (2), and the protective shell is used for preventing the tensioning rib (3) from contacting air.
  4. 4. A reaction kettle for producing a surfactant according to claim 3, wherein a fluid is provided in the chamber (7), and the fluid applies pressure to the outside of the kettle body (2).
  5. 5. A reaction kettle for producing surfactants according to claim 3, characterized in that the protective shell is provided externally with liquid supply means for supplying fluid to the chamber (7) and adjusting the pressure of the fluid.
  6. 6. The reaction kettle for producing surfactant according to claim 5, wherein the liquid supply device comprises: a pressure regulating valve (13), the pressure regulating valve (13) being adapted to regulate the pressure into the chamber (7) by controlling the inflow or outflow of fluid; -a regulating pump (5), said regulating pump (5) being used for pumping or extracting fluid into the chamber (7).
  7. 7. A reaction kettle for producing surfactants according to claim 3, characterized in that the protective shell is provided with a detection device for detecting pressure fluctuation in the chamber (7), the detection device is provided with a pressure gauge (6), and the pressure gauge (6) is used for receiving pressure fluctuation in the chamber (7).
  8. 8. The reaction kettle for producing surfactant according to claim 1, wherein a kettle cover (15) is arranged on the kettle body (2), a support (1) is fixedly arranged on the outer side of the kettle body (2), a lifting device is arranged on the support (1), the support (1) is used for fixing the kettle body (2), and the lifting device is used for lifting the kettle cover (15) along the height direction of the kettle body (2).
  9. 9. The reaction kettle for producing surfactant according to claim 8, wherein a base (14) is arranged in the bracket (1), the lifting device is arranged on the base (14), and the lifting device comprises: the fixed block (8), the said fixed block (8) is fixedly set up on the kettle cover (15); The lifting cylinder (9) is arranged on the base (14), and the lifting cylinder (9) is fixedly connected with one side, far away from the kettle cover (15), of the fixed block (8); The lifting motor (10) is fixedly arranged on the base (14), and the output end of the lifting motor (10) is connected with the lifting cylinder (9) through a gearbox; The limiting assembly is arranged on the lifting cylinder (9) and used for limiting lifting displacement of the fixed block (8).
  10. 10. The reaction kettle for producing the surfactant according to claim 9, wherein the limiting assembly comprises: The lifting slide block (11), the lifting slide block (11) is fixedly arranged on the fixed block (8) at one side far away from the kettle cover (15); Lifting guide (12), lifting guide (12) is fixed to be set up on support (1), lifting guide (12)'s bottom flushes with cauldron body (2) top, be provided with guide rail (17) in lifting guide (12), guide rail (17) both ends are provided with stopper (16), guide rail (17) and lifting slider (11) sliding connection.

Description

Reation kettle is used in surfactant production Technical Field The utility model belongs to the field of chemical machinery, and particularly relates to a reaction kettle for producing a surfactant. Background Depending on the particular synthetic method and surfactant type, the preparation technique of the surfactant in the reaction vessel can be either physical or chemical, with significant differences in pressure requirements. Whether a high pressure environment is required depends on the type of surfactant, anions (such as sodium dodecylbenzenesulfonate) generally do not require high pressure, while some cations or particular types may require high pressure assistance, physical synthesis (such as high compression) and particular chemical reactions (such as hydrogenation of fatty alcohols). The synthesis process requiring high pressure environment, such as condensation of low molecular weight ethyl alkyl acid with hydrophilic amino alcohol or hydroxylated fatty alcohol under high pressure to form surfactant, the reaction condition is 300-700MPa high pressure for several hours to tens of hours, and the high pressure hydrogenation process of fatty alcohol, such as dodecanol, needs high pressure hydrogenation reaction to prepare fatty alcohol as the material of surfactant with pressure as high as hundreds of MPa. When a specific high purity surfactant (e.g., a high compression product) is desired to be efficiently prepared, an autoclave is used. In the prior patent No. CN204779424U, a production device of a perfluoroalkoxy carboxylic acid surfactant is disclosed, which is characterized in that a nitrogen steel cylinder and a hexafluoropropylene oxide steel cylinder are connected in parallel and then connected with a I-level drying tower, the I-level drying tower is connected with a II-level drying tower, the II-level drying tower is connected with a high-pressure reaction kettle, the high-pressure reaction kettle is connected with an acyl fluoride hydrolysis reaction separation kettle, a buffer tank and a solvent storage tank are arranged between the high-pressure reaction kettle and the acyl fluoride hydrolysis reaction separation kettle, the buffer tank is connected with a vacuum pump, the acyl fluoride hydrolysis reaction separation kettle is connected with a first reaction kettle, and the first reaction kettle is connected with a second reaction kettle. The utility model provides the production equipment for producing the high-efficiency perfluoroalkoxy carboxylic acid surfactant, which has a simple structure, less side reaction in the whole production process, and high yield of the perfluoroalkoxy carboxylic acid surfactant, and can produce various products by the same equipment. In order to bear larger pressure in the reaction process, the thickness of the high-pressure reaction kettle body is thickened, but the thickness of the kettle body is thickened to reduce the space available for reaction of the reaction kettle, reduce reactants which can be put into each time, reduce produced reaction products and reduce the production efficiency of the reaction. Disclosure of utility model The utility model aims to solve the technical problems, and provides a reaction kettle for producing a surfactant, which can bear larger pressure, and meanwhile, the thickness of the kettle body of the reaction kettle is thinned, so that the reaction space is increased, and the production efficiency of the reaction is improved. In view of the above, the utility model provides a reaction kettle for producing a surfactant, which is characterized by comprising a kettle body, wherein a tensioning rib is arranged outside the kettle body and is in hooping connection with the kettle body, the tensioning rib is wound for a plurality of circles outside the kettle body along the height of the kettle body, and the tensioning rib is used for generating pre-compression stress on the surface of the kettle body. In this technical scheme, when being in the high-pressure state in the cauldron body, under the same cauldron body thickness, compare with ordinary high-pressure reaction kettle, there is the high-pressure reaction kettle of tensioning muscle because tensioning muscle twines at the whole surface of the cauldron body, and tensioning muscle can produce tension and tighten the external portion of cauldron, exerts a pressure opposite with the internal pressure of cauldron to alleviate the pressure that the cauldron body received, make the life extension of the cauldron body. Further, the tensioning rib is made of linear materials with good fatigue life. In the technical scheme, the tensioning rib is generally made of steel wires, the strength limit of the steel wires is more than 3500MPa, the diameter of a monofilament is less than 0.3mm, and the carbon content is more than 0.7%. Further, the external portion of cauldron is provided with the protective housing, the protective housing is external fixed connection with the cauldron, fo