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CN-224227033-U - Polyglutamic acid fermentation tank capable of being heated uniformly

CN224227033UCN 224227033 UCN224227033 UCN 224227033UCN-224227033-U

Abstract

The utility model discloses a polyglutamic acid fermentation tank capable of being heated uniformly, and belongs to the technical field of fermentation tanks. The problems of nonuniform heating, low dissolved oxygen rate and nonuniform dissolved oxygen in a polyglutamic acid fermentation tank in the prior art are solved. The heating jacket is arranged on the outer side of the tank body, a heating outer pipe with a top sealed is arranged in the middle of the tank body, the bottom of the heating outer pipe downwards extends out of the tank body, a heating inner pipe with a top sealed is arranged in the heating outer pipe, a heating cavity is formed between the heating outer pipe and the heating inner pipe, the bottom of the heating cavity is sealed through a sealing bottom plate, the sealing bottom plate is respectively connected with the bottom of the heating outer pipe and the bottom of the heating inner pipe, a heat conduction oil filling pipe communicated with the heating cavity is arranged on the sealing bottom plate, a reflux port is formed in the top of the heating inner pipe, the reflux port is connected with a heat conduction oil reflux pipe, and the heat conduction oil reflux pipe downwards extends out of the bottom of the heating inner pipe.

Inventors

  • WANG ZHIYUAN
  • ZHANG QILONG
  • Xu Bichao
  • WANG SHIWEI
  • YANG JUNLIN
  • FENG YUANTAO

Assignees

  • 宝鸡阜丰生物科技有限公司

Dates

Publication Date
20260512
Application Date
20250430

Claims (10)

  1. 1. The utility model provides a even polyglutamic acid fermentation cylinder heats, its characterized in that, including a jar body (1), heating jacket (2) are installed in the outside of jar body (1), mid-mounting in jar body (1) has heating outer tube (3) that the top was sealed, the bottom of heating outer tube (3) stretches out jar body (1) downwards, install heating inner tube (4) that the top was sealed in heating outer tube (3), form heating chamber (5) between heating outer tube (3) and heating inner tube (4), the bottom of heating chamber (5) is sealed through sealing bottom plate (6), sealing bottom plate (6) are connected with the bottom of heating outer tube (3) and the bottom of heating inner tube (4) respectively, be provided with conduction oil filling pipe (7) of intercommunication heating chamber (5) on sealing bottom plate (6), return mouth (8) have been seted up at the top of heating inner tube (4), conduction oil back flow (9) are connected to return mouth (8), the bottom of heating inner tube (4) is stretched out downwards.
  2. 2. The uniformly heated polyglutamic acid fermenter according to claim 1, wherein a plurality of rib plates (10) are installed between the heating outer tube (3) and the heating inner tube (4).
  3. 3. The uniformly heated polyglutamic acid fermenter according to claim 1, wherein the heating inner tube (4) is filled with a heat insulation layer (11), and the heat conduction oil return tube (9) passes through the heat insulation layer (11) downwards.
  4. 4. The uniformly heated polyglutamic acid fermentation tank according to claim 1, wherein a motor (12) is fixedly arranged on the upper side of the tank body (1), the motor (12) is connected with a hollow shaft speed reducer (13), a hollow shaft of the hollow shaft speed reducer (13) is connected with a stirring shaft (14), the stirring shaft (14) downwards stretches into the tank body (1) and is rotationally connected with the tank body (1), the stirring shaft (14) is upwards connected with a rotating part of a rotating joint (15), a fixing part of the rotating joint (15) is connected with an air inlet pipe (16), the bottom of the stirring shaft (14) is connected with a transverse pipe (17) communicated with the stirring shaft (14), two ends of the transverse pipe (17) are respectively connected with a vertical pipe (18) communicated with the transverse pipe (17), the vertical pipe (18) is vertically connected with a plurality of branch pipes (19) communicated with the vertical pipe (18) at intervals, the branch pipes (19) stretch out towards the inner side of the tank body (1), and nozzles (20) and inner stirring blades (21) are arranged on the branch pipes (19).
  5. 5. The uniformly heated polyglutamic acid fermentation tank as claimed in claim 4, wherein the branch pipes (19) on the vertical pipes (18) at both sides are symmetrically arranged, the inner ends of the two opposite branch pipes (19) are fixedly connected with a bearing seat (22), and the bearing seat (22) is sleeved on the heating outer pipe (3) through bearings.
  6. 6. The uniformly heated polyglutamic acid fermenter according to claim 4, wherein a supporting rod (23) is fixedly connected to the lower side of the middle part of the horizontal tube (17), and a defoaming paddle (24) is installed on the supporting rod (23).
  7. 7. The uniformly heated polyglutamic acid fermenter according to claim 4, wherein the fixing part of the rotary joint (15) is fixedly installed at the top of the tank body (1) through a bracket (25).
  8. 8. The uniformly heated polyglutamic acid fermenter according to claim 4, wherein the standpipe (18) is provided with a plurality of external stirring blades (26) at vertical intervals, and the external stirring blades (26) protrude to the outside of the tank body (1).
  9. 9. The uniformly heated polyglutamic acid fermentation tank of claim 1, wherein a fermentation liquid temperature sensor (27) is arranged on the side wall in the tank body (1), and the upper side and the lower side of the heating jacket (2) are respectively connected with a liquid outlet pipe (28) and a liquid inlet pipe (29).
  10. 10. The uniformly heated polyglutamic acid fermentation tank as claimed in claim 1, wherein the bottom of the tank body (1) is provided with discharge pipes (30) respectively at two sides of the heating outer pipe (3), and the bottom of the tank body (1) is provided with supporting legs (31).

Description

Polyglutamic acid fermentation tank capable of being heated uniformly Technical Field The utility model belongs to the technical field of fermentation tanks, and particularly relates to a polyglutamic acid fermentation tank capable of being heated uniformly. Background The fermentation tank is needed in the production of polyglutamic acid, and the problems of uneven heating, low dissolved oxygen rate and uneven dissolved oxygen exist in the current fermentation tank for polyglutamic acid production when the fermentation tank is used. When the polyglutamic acid is produced by microbial fermentation, the temperature is sensitive, the temperature difference of different areas in the fermentation tank is large due to uneven heating, the enzyme activity of microorganisms is reduced in the area with excessively low temperature in the fermentation tank, so that the metabolic rate is slowed down, the growth and propagation are inhibited, the growth of microorganisms in the whole fermentation system is inconsistent, the fermentation process and the efficiency are influenced, and the areas with excessively high temperature possibly lead to the denaturation and inactivation of biological macromolecules such as proteins and enzymes in the microorganisms, the normal physiological functions of cells are damaged, the quality of products is also influenced, the fermentation period is prolonged and the like due to uneven heating. Polyglutamic acid production generally depends on aerobic microorganism fermentation, and when the dissolved oxygen rate is low, microorganisms cannot obtain enough oxygen to perform aerobic respiration, energy supply is insufficient, growth metabolism is inhibited, propagation speed is reduced, and even growth is stopped. For example, in the process of producing polyglutamic acid by fermenting bacillus subtilis, insufficient dissolved oxygen can delay the logarithmic phase of bacterial growth and reduce biomass accumulation. The uneven dissolved oxygen in the fermentation tank can cause the difference of microorganism growth environments in different areas of the fermentation tank, and the areas with over high dissolved oxygen can generate excessive active oxygen substances, damage the cell structure and function of the bacteria, and the areas with over low dissolved oxygen can cause the growth limitation of the microorganisms, so that the abnormal shapes of the bacteria, such as cell deformation, different sizes and the like, influence the fermentation process. Disclosure of Invention The utility model aims to provide a polyglutamic acid fermentation tank with uniform heating, so as to solve the problems of nonuniform heating, low dissolved oxygen rate and nonuniform dissolved oxygen in the polyglutamic acid fermentation tank in the prior art. The utility model adopts the following technical scheme that the uniformly heated polyglutamic acid fermentation tank comprises a tank body, a heating jacket is arranged on the outer side of the tank body, a heating outer pipe with a sealed top is arranged in the middle of the tank body, the bottom of the heating outer pipe extends downwards out of the tank body, a heating inner pipe with a sealed top is arranged in the heating outer pipe, a heating cavity is formed between the heating outer pipe and the heating inner pipe, the bottom of the heating cavity is sealed through a sealing bottom plate, the sealing bottom plate is respectively connected with the bottom of the heating outer pipe and the bottom of the heating inner pipe, a heat conducting oil filling pipe communicated with the heating cavity is arranged on the sealing bottom plate, a reflux port is arranged at the top of the heating inner pipe and is connected with a heat conducting oil reflux pipe, and the heat conducting oil reflux pipe extends downwards out of the bottom of the heating inner pipe. Further, a plurality of rib plates are arranged between the heating outer pipe and the heating inner pipe. Further, the heating inner pipe is filled with an insulation layer, and the heat conduction oil return pipe downwards penetrates through the insulation layer. Further, the upside fixed mounting motor of jar body, hollow shaft reducer is connected to the motor, the (mixing) shaft is connected in hollow shaft transmission of hollow shaft reducer, the (mixing) shaft stretches into jar internal and with jar body rotation connection downwards, connect rotary joint's rotation part on the (mixing) shaft, the intake pipe is connected to rotary joint's fixed part, the horizontal pipe with the (mixing) shaft intercommunication is connected to the bottom of (mixing) shaft, the standpipe with the horizontal pipe intercommunication is connected respectively at the both ends of horizontal pipe, the standpipe along vertical interval connection many branch pipes with the standpipe intercommunication, the branch pipe stretches out to jar internal side, install nozzle and interior stirring vane on the branch pipe.