CN111649537A - Seed production cooling and heat preservation water circulation system of fermentation tank - Google Patents
Seed production cooling and heat preservation water circulation system of fermentation tank Download PDFInfo
- Publication number
- CN111649537A CN111649537A CN202010453279.4A CN202010453279A CN111649537A CN 111649537 A CN111649537 A CN 111649537A CN 202010453279 A CN202010453279 A CN 202010453279A CN 111649537 A CN111649537 A CN 111649537A
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- water
- cooling
- cold water
- fermentation tank
- circulation system
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D31/00—Other cooling or freezing apparatus
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G18/00—Cultivation of mushrooms
- A01G18/30—Accessories for use before inoculation of spawn, e.g. sterilisers
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G18/00—Cultivation of mushrooms
- A01G18/40—Cultivation of spawn
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
Abstract
The seed production cooling and heat preservation water circulation system of the fermentation tank comprises a cold water pool, a first water pump and a cooling coil pipe which are sequentially connected, wherein the cooling coil pipe is connected with the cold water pool to form a circulation loop; the cooling coil is arranged inside the fermentation tank and fixed on the inner wall of the fermentation tank; the cold water pool is connected with a cold water machine through a second water pump, and a circulating loop is formed between the cold water pool and the cold water machine through a pipeline; the first water pump is a pressurized water pump, and the second water pump is a non-pressurized water pump; the cold water pool is connected with a tap water pipe through a water level controller; a constant temperature shunt valve is arranged between the cold water pool and the cooling coil pipe, the low temperature water outlet of the constant temperature shunt valve is connected with the cold water pool, and the high temperature water outlet of the constant temperature shunt valve is connected with the boiler water pool. The invention has the advantages of small water consumption, high cooling speed, good cooling uniformity and good constant temperature effect in the heat preservation stage.
Description
Technical Field
The invention relates to online production equipment of liquid strains of edible fungi, in particular to a cooling and heat-preserving water circulation system for seed production in a fermentation tank.
Background
With the rapid development of the production scale of edible fungi and the further improvement of the technical level, the production of edible fungi strains is gradually transferred from solid strains to liquid strains, but the liquid strains have extremely strict requirements on cooling and heat preservation in the production process, and the produced liquid strains can not reach the standard by a little carelessness. At present, the cooling of the liquid strain culture medium after sterilization mainly adopts two modes: the first way is that after the culture medium of the liquid fermentation tank is sterilized in an autoclave, the culture medium is sprayed and cooled by cold water in the autoclave; in the second method, a culture tank having a tank wall provided with a sandwich layer is used, and cooling is performed by injecting circulating cold water into the sandwich layer.
CN 204039389U discloses a cooling water supply system for fermentation tank, comprising: tap water pipeline (1), water storage tank (2), certainly water storage tank (2) bottom accesss to inlet channel (4) of fermentation cylinder (3), accesss to from fermentation cylinder (3) return water pipeline (5) at water storage tank (2) top, establish control valve (6) on water storage tank (2) bottom inlet channel (4), establish tee bend (7) on tap water pipeline (1) and inlet channel (4) connector, establish control valve (11) on communicating pipe (10) between fermentation cylinder (3) cooling inlet channel (8) and cooling return water pipeline (9), establish tee bend (13), cold water pump (14) and cold water machine (15) on fermentation cylinder (3) cooling return water pipeline (9) and sewer (12) connector. The method has the defects of high water waste amount, long cooling time, poor cooling uniformity, poor constant temperature effect in the heat preservation stage, small volume of the strain tank, more tank bodies under the condition of the same area, excessive operation frequency, increased number of strain making nodes and increased risks in the processes of cooling, culturing and inoculating the culture medium.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and provide a seed production cooling and heat-insulating water circulation system of a fermentation tank, which has the advantages of small water consumption, high cooling speed, good cooling uniformity and good constant temperature effect in a heat-insulating stage.
The technical scheme adopted by the invention for solving the technical problems is as follows: the seed production cooling and heat preservation water circulation system of the fermentation tank comprises a cold water pool, a first water pump and a cooling coil pipe which are sequentially connected, wherein the cooling coil pipe is connected with the cold water pool to form a circulation loop; the cooling coil is arranged inside the fermentation tank and fixed on the inner wall of the fermentation tank; the cold water pond is connected with a cold water machine through a second water pump, and a circulation loop is formed between the cold water pond and the cold water machine through a pipeline.
Further, the first water pump is a pressurized water pump, and the second water pump is a non-pressurized water pump; the lift of the first water pump is 20-30m, and the inner diameter of the pipe is 32-35 mm.
Furthermore, the cold water pool is connected with a tap water pipe through a water level controller, so that the water level of the cold water pool is kept constant.
Furthermore, a constant temperature shunt valve is arranged between the cold water pool and the cooling coil, a low temperature water outlet of the constant temperature shunt valve is connected with the cold water pool, and a high temperature water outlet of the constant temperature shunt valve is connected with the boiler water pool.
Further, the constant temperature of the constant temperature shunt valve is set to be 21-28 ℃, and 25 ℃ is preferred; the water returns to the cold water tank for refrigeration at the temperature lower than 25 ℃ and is recycled, and the water is used for producing steam in the boiler water tank at the temperature higher than 25 ℃, so that the water cooling and heat preservation system is protected, the water is saved, and the utilization efficiency of the cooling water can be improved.
Furthermore, a space is arranged between the cooling coil and the inner wall of the fermentation tank.
Further, the water cooler is an air-cooled water cooler.
Furthermore, a sun-shading device is arranged above the cold water pool to prevent sunlight from directly irradiating the water chiller and the cold water pool; a rainwater protection device is arranged above the first water pump, and rainwater is prevented from being sprayed into the impeller of the first water pump.
The invention injects proper circulating water through the cooling coil to carry out cooling and heat preservation, assists in maintaining constant temperature culture in the hypha culture stage in the fermentation tank, and controls the temperature in the fermentation tank to be about 22 ℃ which is the optimal temperature for hypha growth; during the growth period, especially the vigorous growth period, if the internal part of the hypha does not keep the optimal constant temperature, the resistance of the hypha is reduced, the germination capacity is weakened, and the quality of the strains is finally influenced.
Compared with the cooling water for an offline sterilization fermentation tank, the water consumption of 2/3 can be saved, and compared with the water consumption for online interlayer cooling and heat preservation, the water consumption is saved by 1/2; the cooling time is shortened by about 1/3 compared with the cooling after the culture mediums of the off-line fermentation tank and the on-line sandwich fermentation tank are sterilized; in the process of liquid seed culture, the error of constant-temperature culture is reduced by about 3 ℃ compared with the fermentation tank for off-line culture and the fermentation tank for interlayer on-line culture, so that the culture quality of the strain can be well improved, the stability of the quality of the strain is improved, and the yield and the quality of the pleurotus eryngii are finally improved; compared with the other two fermentation tank cooling and heat preservation modes, the online coil cooling mode has almost no waste of water resources, and the optimal state of water recycling is achieved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
1. The system comprises a cold water pool, 11, a first water pump, 12, a second water pump, 121, a cold water machine, 13, a water level controller, 131, a tap water pipe, 2, a fermentation tank, 21, a cooling coil, 22, a constant-temperature flow dividing valve, 23 and a boiler water pool.
Detailed Description
The following examples are given to further illustrate the embodiments of the present invention:
as shown in fig. 1, an embodiment of a cooling and heat-preserving water circulation system for seed production in a fermentation tank comprises a cold water tank 1, a first water pump 11 and a cooling coil 21 which are connected in sequence, wherein the cooling coil 21 is connected with the cold water tank 1 to form a circulation loop; the cooling coil 21 is arranged inside the fermentation tank 2 and fixed on the inner wall of the fermentation tank 2; the cold water pool 1 is connected with a cold water machine 121 through a second water pump 12, and a circulation loop is formed between the cold water pool 1 and the cold water machine 121 through a pipeline; the volume of the fermentation tank 2 is 1000L, and the volume of the cold water pool 1 is 3-5m3The water chiller 121 is an air-cooled water chiller.
The first water pump 11 is a pressure water pump, and is installed within 30m from the fermentation tank with a flow of 3m3The delivery lift is 20-30m, the inner diameter of the tubing is 32-35mm, and is three times of the diameter of the cooling coil 21; the second water pump 12 is a non-pressurized water pump; the cold water pool 1 is subjected to heat preservation treatment, a shed is arranged above the cold water pool 1 to prevent sunlight from directly irradiating the cold water machine 121 and the cold water pool 1, the water temperature of the cold water pool 1 is set to be 5-10 ℃ in summer and 10-15 ℃ in winter; a rainwater protection device is arranged above the first water pump 11 to prevent rainwater from pouring into an impeller of the first water pump 11; the cold water tank 1 is connected with a tap water pipe 131 through a water level controller 13; so that the water level of the cold water tank 1 is kept constant during operation.
A constant temperature diverter valve 22 is arranged between the cold water pool 1 and the cooling coil 21, the low temperature water outlet of the constant temperature diverter valve 22 is connected with the cold water pool 1, and the high temperature water outlet thereof is connected with a boiler water pool 23; the most robust growth temperature of the pleurotus eryngii mycelium is 22 ℃, and the most suitable growth temperature is 25 ℃; the temperature of the constant temperature shunt valve 22 is set to 25 ℃; the water returns to the cold water tank 1 at the temperature lower than 25 ℃ for refrigeration and then is recycled, and the water is used for producing steam in the boiler water tank 23 at the temperature higher than 25 ℃, so that the water cooling and heat preservation system is protected, the water is saved, and the utilization efficiency of the cooling water can be improved.
A space is arranged between the cooling coil 21 and the inner wall of the fermentation tank 2; before the new fermentation tank is used, each fermentation tank 2 is applied for about half a year, and leakage test detection is carried out on the cooling coil 21; the detection method comprises the following steps: firstly, air pressure leakage testing is carried out, clear water is filled in the fermentation tank 2, compressed air is introduced into the cooling coil 21, and whether bubbles are generated on the water surface is observed so as to determine whether the cooling coil 21 has leakage and leakage parts; and secondly, in the hydrostatic test, water is gradually pressed into the cooling coil 21 by using a manual pump or a pressure test gear pump, and whether the cooling coil 21 leaks or not is observed when certain pressure is reached.
Through investigation, the cooling water for domestic edible fungus off-line fermentation tanks and on-line interlayer fermentation tanks is disposable and is not recycled, the off-line liquid fermentation tanks are not insulated by water, and only the temperature is controlled by an air conditioner for insulation, so that the off-line sterilization only uses the cooling water, the water consumption is about four tons at a time, the on-line cooling coil is the comprehensive cyclic utilization of the water, the loss is mainly in the early stage of cooling, the water in the cooling process is volatilized, and the water consumption is about 1.5 tons generally after long-term measurement and calculation; the interlayer cooled by the online interlayer generally only comprises about half of a fermentation tank, the cooling time of the interlayer is one third more than that of the online inner coil, and the water consumption is about 3 tons generally; in the production of seeds by an online interlayer fermentation tank, through domestic investigation, only part of the seeds are cooled by circulating water, and the majority of the seeds are directly discharged by cooling water; typically, the cooling coil time on-line is around six hours, while off-line cooling and sandwich cooling are typically around nine hours.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as being within the protection scope of the present invention.
Those not described in detail in the specification are well within the skill of the art.
Claims (9)
1. The seed production cooling and heat preservation water circulation system of the fermentation tank is characterized by comprising a cold water pool, a first water pump and a cooling coil which are sequentially connected, wherein the cooling coil is connected with the cold water pool to form a circulation loop; the cooling coil is arranged inside the fermentation tank and fixed on the inner wall of the fermentation tank; the cold water pond is connected with a cold water machine through a second water pump, and a circulation loop is formed between the cold water pond and the cold water machine through a pipeline.
2. The cooling and heat-preserving water circulation system for seed production in fermentation tanks as claimed in claim 1, wherein the first water pump is a pressurized water pump, and the second water pump is a non-pressurized water pump.
3. The cooling and heat-preserving water circulation system for seed production in fermentation tanks as claimed in claim 2, characterized in that the cold water tank is connected with a tap water pipe through a water level controller, so that the water level of the cold water tank is kept constant.
4. The cooling and heat-preserving water circulation system for seed production in fermentation tanks as claimed in claim 3, characterized in that a constant temperature diverter valve is arranged between the cold water tank and the cooling coil pipe, the low temperature water outlet of the constant temperature diverter valve is connected with the cold water tank, and the high temperature water outlet thereof is connected with the boiler water tank.
5. The cooling and heat-preserving water circulation system for seed production in fermentation tanks as claimed in claim 4, characterized in that the constant temperature of the constant temperature shunt valve is set to 21-28 ℃, preferably 25 ℃.
6. The cooling and heat-preserving water circulation system for seed production in fermentation tanks as claimed in any one of claims 1 to 5, wherein a space is provided between the cooling coil and the inner wall of the fermentation tank.
7. The cooling and heat-preserving water circulation system for seed production in a fermentation tank as claimed in any one of claims 1 to 5, wherein the water cooler is an air-cooled water cooler.
8. The fermentation tank seed production cooling and heat preservation water circulation system according to any one of claims 1 to 5, characterized in that a sun-shading device is arranged above the cold water pool, and a rain water protection device is arranged above the first water pump.
9. The cooling and heat-preserving water circulation system for seed production in a fermentation tank as claimed in any one of claims 1 to 5, wherein the head of the first water pump is 20 to 30m, and the inner diameter of the pipe is 32 to 35 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010453279.4A CN111649537A (en) | 2020-05-26 | 2020-05-26 | Seed production cooling and heat preservation water circulation system of fermentation tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010453279.4A CN111649537A (en) | 2020-05-26 | 2020-05-26 | Seed production cooling and heat preservation water circulation system of fermentation tank |
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| Publication Number | Publication Date |
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| CN111649537A true CN111649537A (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010453279.4A Pending CN111649537A (en) | 2020-05-26 | 2020-05-26 | Seed production cooling and heat preservation water circulation system of fermentation tank |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201817473U (en) * | 2010-10-21 | 2011-05-04 | 安徽省华信生物药业股份有限公司 | Fermentation tank cooling device |
| CN203021552U (en) * | 2012-12-27 | 2013-06-26 | 江苏岭南发酵设备有限公司 | Cooling fermentation tank with inner coils |
| CN203034018U (en) * | 2013-01-17 | 2013-07-03 | 湖南利尔康生物有限公司 | Cooling water recycling system of fermentation tank |
| CN204490866U (en) * | 2014-11-14 | 2015-07-22 | 河南巨龙生物工程股份有限公司 | The circulation temperature lowering equipment of fermentor tank |
| CN206799600U (en) * | 2017-06-06 | 2017-12-26 | 沭阳县福阳木业制品厂 | A kind of biological enzyme formulation fermentation tank |
| CN108977355A (en) * | 2018-08-15 | 2018-12-11 | 广西益康达生物技术有限公司 | The temperature automatically controlled microbiological anaerobic Zymolysis Equipment of energy conservation |
| CN208980710U (en) * | 2018-08-16 | 2019-06-14 | 无锡市宜欣制药设备厂（普通合伙） | A kind of fermentor cooling structure |
-
2020
- 2020-05-26 CN CN202010453279.4A patent/CN111649537A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201817473U (en) * | 2010-10-21 | 2011-05-04 | 安徽省华信生物药业股份有限公司 | Fermentation tank cooling device |
| CN203021552U (en) * | 2012-12-27 | 2013-06-26 | 江苏岭南发酵设备有限公司 | Cooling fermentation tank with inner coils |
| CN203034018U (en) * | 2013-01-17 | 2013-07-03 | 湖南利尔康生物有限公司 | Cooling water recycling system of fermentation tank |
| CN204490866U (en) * | 2014-11-14 | 2015-07-22 | 河南巨龙生物工程股份有限公司 | The circulation temperature lowering equipment of fermentor tank |
| CN206799600U (en) * | 2017-06-06 | 2017-12-26 | 沭阳县福阳木业制品厂 | A kind of biological enzyme formulation fermentation tank |
| CN108977355A (en) * | 2018-08-15 | 2018-12-11 | 广西益康达生物技术有限公司 | The temperature automatically controlled microbiological anaerobic Zymolysis Equipment of energy conservation |
| CN208980710U (en) * | 2018-08-16 | 2019-06-14 | 无锡市宜欣制药设备厂（普通合伙） | A kind of fermentor cooling structure |
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Application publication date: 20200911 |
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