CN209752228U - Low thermophilic bacteria falling film evaporator system for dairy industry - Google Patents
Low thermophilic bacteria falling film evaporator system for dairy industry Download PDFInfo
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- CN209752228U CN209752228U CN201920343966.3U CN201920343966U CN209752228U CN 209752228 U CN209752228 U CN 209752228U CN 201920343966 U CN201920343966 U CN 201920343966U CN 209752228 U CN209752228 U CN 209752228U
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Abstract
The utility model discloses a low thermophilic bacteria falling film evaporation ware system of dairy industry, tubular preheater upper end is connected with flash evaporation preheater upper end, the flash evaporation preheater upper end is connected with sterilizer one end, the sterilizer other end is connected with insulating tube one end, the insulating tube other end is connected with flash evaporation preheater lower extreme, the inboard upper portion of flash evaporation preheater and lower part intercommunication, flash evaporation preheater lower extreme and multi-effect evaporation ware upper end are connected, multi-effect evaporation ware lower part is connected with the multi-effect separator, the multi-effect separator is connected with tubular preheater, the material passes through in the multi-effect evaporation ware. The low thermophilic bacteria falling film evaporator system material in the dairy industry of the utility model is only indirectly preheated once and then directly enters the flash evaporation preheater, the material is directly contacted with the secondary steam to be preheated to the temperature required by the process, and the temperature range in which thermophilic bacteria are easy to breed and propagate is avoided; the steam is directly and uniformly mixed with the materials to reach the required sterilization temperature.
Description
Technical Field
The utility model relates to a concentrated system of dairy industry feed liquid especially relates to a low thermophilic bacteria falling film evaporation ware system of dairy industry.
Background
In the existing traditional falling film evaporator system in the dairy industry, the sterilized materials enter the falling film evaporator system to reach the required concentration through indirect repeated stepwise preheating and an indirect sterilizer. In the existing traditional falling-film evaporator, in the process of indirectly preheating the feed liquid step by step for many times, a biological film is formed on the inner surface of the stainless steel of the tubular preheater, and due to the existence of the biological film, the adhesion, growth, reproduction and release of microorganisms on the surface of the stainless steel are proved facts. The suitable growth and propagation temperature range of the thermophilic bacteria is 45-65 ℃, and the preheating zone of the traditional falling-film evaporator is just in the temperature range, so that the number of the thermophilic bacteria in feed liquid is increased, and the industrial sanitary requirement of the dairy product cannot be met.
Disclosure of Invention
The utility model is completed for solving the defects in the prior art, and the utility model aims to provide a low thermophilic bacteria falling film evaporator system in the dairy industry, which has the advantages that the material is only indirectly preheated once and then directly enters a flash evaporation preheater, the material is directly contacted with secondary steam to preheat to the temperature required by the process, and the temperature range in which thermophilic bacteria are easy to breed and propagate is avoided; the steam is directly and uniformly mixed with the materials to reach the required sterilization temperature.
The utility model discloses a low thermophilic bacteria falling film evaporation ware system of dairy industry, including falling film evaporation ware, flash evaporation pre-heater, sterilizer and insulating tube, falling film evaporation ware includes tubular pre-heater, at least one multi-effect evaporator and at least one multiple-effect separator, tubular pre-heater upper end with flash evaporation pre-heater upper end is connected, flash evaporation pre-heater upper end with sterilizer one end is connected, the sterilizer other end with insulating tube one end is connected, the insulating tube other end with the flash evaporation pre-heater lower extreme is connected, the inboard upper portion of flash evaporation pre-heater and lower part intercommunication, flash evaporation pre-heater lower extreme with multi-effect evaporator upper end is connected, multi-effect evaporator lower part with the multiple-effect separator is connected, the multiple-effect separator with tubular pre-heater connects, and the material is in the multi-effect evaporator passes through.
The utility model discloses a low thermophilic bacteria falling film evaporation ware system of dairy industry can also be:
The tubular preheater is internally provided with the material with the temperature of 40-45 ℃.
The material with the temperature of 65-70 ℃ is arranged in the upper end of the flash evaporation preheater.
One end of the hot pressure pump is connected with the multi-effect evaporator, and the other end of the hot pressure pump is connected with industrial steam.
Falling film evaporator includes one effect evaporimeter, two effect evaporimeter, three effect evaporimeter, one effect separator, two effect separators, three effect separators and tubular pre-heater, heat pump one end with one effect evaporimeter is connected, one effect evaporimeter lower part with one effect separator is connected, two effect evaporimeter with two effect separators are connected, three effect evaporimeter with three effect separators is connected, one effect evaporimeter lower extreme with two effect evaporimeter upper end is connected, two effect evaporimeter lower extreme with three effect evaporimeter upper end is connected, three effect separators with tubular pre-heater connects.
The falling film evaporator comprises a condenser, and the condenser is connected with the tubular preheater.
The utility model discloses a low thermophilic bacteria falling film evaporation ware system of dairy industry, including falling film evaporation ware, flash evaporation pre-heater, sterilizer and insulating tube, falling film evaporation ware includes tubular pre-heater, at least one multi-effect evaporator and at least one multiple-effect separator, tubular pre-heater upper end with flash evaporation pre-heater upper end is connected, flash evaporation pre-heater upper end with sterilizer one end is connected, the sterilizer other end with insulating tube one end is connected, the insulating tube other end with the flash evaporation pre-heater lower extreme is connected, the inboard upper portion of flash evaporation pre-heater and lower part intercommunication, flash evaporation pre-heater lower extreme with multi-effect evaporator upper end is connected, multi-effect evaporator lower part with the multiple-effect separator is connected, the multiple-effect separator with tubular pre-heater connects, and the material is in the multi-effect evaporator passes through. Therefore, the falling-film evaporator comprises a tubular preheater, multiple-effect evaporators and multiple-effect separators, wherein the number of the multiple-effect evaporators is one or more, the number of the multiple-effect separators is one or more, and the number of the multiple-effect evaporators corresponds to that of the multiple-effect separators. Wherein, the quantity of the multi-effect evaporator and the multi-effect separator is actually determined according to the production scale condition and the like. The upper end of the tubular preheater is connected with the upper end of the flash evaporation preheater. The sterilizer is ducted with sterilizing cleaning steam to direct steam injection. The upper end of the flash evaporation preheater is connected with one end of the sterilizer, and the direct steam injection sterilization technology is adopted, so that the steam is directly and uniformly mixed with the materials rapidly, and the required sterilization temperature is reached. The other end of the sterilizer is connected with one end of a heat-insulating pipe, the other end of the heat-insulating pipe is connected with the lower end of a flash evaporation preheater, the upper part and the lower part of the inner side of the flash evaporation preheater are communicated with each other, the lower end of the flash evaporation preheater is connected with the upper end of a multi-effect evaporator, the lower part of the multi-effect evaporator is connected with a multi-effect separator, and the multi-effect separator. When the device works, materials are conveyed to the tubular preheater to be preheated for the first stage and then enter the flash evaporation preheater to be directly preheated for the second stage; the materials after two-stage preheating are sterilized by a direct steam jet sterilizer, wherein the steam jet sterilization can improve the temperature of the materials; the sterilized materials need to be kept for a period of time through a heat preservation pipe; sterilizing the materials by setting the sterilization temperature and the heat preservation time; the materials enter the lower part of a flash evaporation preheater for flash evaporation, the heat released by flash evaporation enters the upper part of a flash evaporator for preheating the materials, and the materials after flash evaporation enter each multi-effect evaporator in sequence for evaporation to meet the required concentration requirement; the flash evaporation preheater is the structure that is linked together from top to bottom, and the heat that the lower part disinfected back material flash evaporation release passes through the pipeline and gets into flash evaporation preheater upper portion, and flash evaporation steam carries out the heat transfer with the low temperature material direct contact who treats preheating, does not have the heat transfer surface, does not just have the environment that thermophilic bacteria bred yet. After the materials enter the evaporator with each effect, evaporating the moisture of the materials until the required material concentration is achieved. The last multi-effect evaporator is connected with the tubular preheater, and the heat of the gas in the multi-effect evaporator is used for heating the tubular preheater, so that the resources are saved, and the system utilization rate of the falling film evaporator is improved. In the falling film evaporator system, materials are only subjected to one-time indirect preheating and then directly enter the flash evaporation preheater, and the materials are directly contacted with secondary steam to preheat to the temperature required by the process, so that the temperature range in which thermophilic bacteria are easy to breed and propagate is avoided. The steam is directly and uniformly mixed with the materials by a steam direct injection sterilization technology, so that the required sterilization temperature is reached. The utility model discloses a low thermophilic bacteria falling film evaporation ware system of dairy industry, the advantage that has for prior art is: the material is indirectly preheated for only one time and then directly enters a flash evaporation preheater, and the material is directly contacted with secondary steam to be preheated to the temperature required by the process, so that the temperature range in which thermophilic bacteria are easy to breed and propagate is avoided; the steam is directly and uniformly mixed with the materials to reach the required sterilization temperature.
Drawings
Fig. 1 is a schematic view of a low thermophilic bacteria falling film evaporator system in the dairy industry.
Description of the figures
1. a falling film evaporator; 11. a tubular preheater; 12. a first-effect evaporator; 13. a second effect evaporator; 14. a triple effect evaporator; 15. a first effect separator; 16. a two-effect separator; 17. a three-effect separator; 18. a condenser; 2. a flash evaporation preheater; 3. a sterilizer; 4. a heat preservation pipe; 5. a hot-press pump.
Detailed Description
The present invention is described in further detail below with reference to fig. 1 of the accompanying drawings.
The utility model discloses a low thermophilic bacteria falling film evaporation ware system of dairy industry, please refer to figure 1, including falling film evaporation ware 1, flash evaporation pre-heater 2, sterilizer 3 and insulating tube 4, falling film evaporation ware 1 includes tubular pre-heater 11, at least one multi-effect evaporator and at least one multi-effect separator, tubular pre-heater 11 upper end with flash evaporation pre-heater 2 upper end is connected, flash evaporation pre-heater 2 upper end with sterilizer 3 one end is connected, the sterilizer 3 other end with insulating tube 4 one end is connected, the insulating tube 4 other end with flash evaporation pre-heater 2 lower extreme is connected, flash evaporation pre-heater 2 inboard upper portion and lower part intercommunication, flash evaporation pre-heater 2 lower extreme with multi-effect evaporator upper end is connected, multi-effect evaporator lower part with multi-effect separator is connected, multi-effect separator with tubular pre-heater 11 is connected, the materials pass through the multi-effect evaporator. Thus, the falling film evaporator 1 comprises a tubular preheater 11, multiple-effect evaporators and multiple-effect separators, wherein the number of the multiple-effect evaporators is one or more, the number of the multiple-effect separators is one or more, and the number of the multiple-effect evaporators corresponds to that of the multiple-effect separators. Wherein, the quantity of the multi-effect evaporator and the multi-effect separator is actually determined according to the production scale condition and the like. The upper end of the tubular preheater 11 is connected with the upper end of the flash evaporation preheater 2. The sterilizer 3 is ducted with sterilizing cleaning steam to direct steam injection. The upper end of the flash evaporation preheater 2 is connected with one end of the sterilizer 3, and the direct steam injection sterilization technology is adopted, so that the steam is directly and uniformly mixed with the materials rapidly, and the required sterilization temperature is reached. The other end of the sterilizer 3 is connected with one end of an insulating pipe 4, the other end of the insulating pipe 4 is connected with the lower end of a flash evaporation preheater 2, the upper part and the lower part of the inner side of the flash evaporation preheater 2 are communicated with each other, the lower end of the flash evaporation preheater 2 is connected with the upper end of a multi-effect evaporator, the lower part of the multi-effect evaporator is connected with a multi-effect separator, and the multi-effect separator is connected with a tubular. When the device works, materials are conveyed to the tubular preheater 11 for primary preheating, wherein the materials can be dairy products, and then enter the flash evaporation preheater 2 for secondary direct contact preheating; the materials after two-stage preheating are sterilized by a direct steam jet sterilizer 3, wherein the steam jet sterilization can improve the temperature of the materials; the sterilized materials need to be kept for a period of time through the heat preservation pipe 4; sterilizing the materials by setting the sterilization temperature and the heat preservation time; the materials enter the lower part of a flash evaporation preheater 2 for flash evaporation, the heat released by flash evaporation enters the upper part of a flash evaporator to preheat the materials, and the materials after flash evaporation enter each multi-effect evaporator in sequence for evaporation to meet the required concentration requirement; flash distillation pre-heater 2 is the structure that is linked together from top to bottom, and the heat that the lower part was disinfected back material flash distillation and is released gets into flash distillation pre-heater 2 upper portion through the pipeline, and flash distillation vapour and the low temperature material direct contact who treats preheating carry out the heat transfer, do not have the heat transfer surface, do not also have the environment that thermophilic bacteria breeies yet. And (4) after the materials enter the multi-effect evaporator, evaporating moisture of the materials until the required material concentration is reached. The last multi-effect evaporator is connected with the tubular preheater 11, and the heat of the gas in the multi-effect evaporator is used for heating the tubular preheater 11, so that the resources are saved, and the system utilization rate of the falling film evaporator is improved. In the falling film evaporator system, materials are only subjected to one-time indirect preheating and then directly enter the flash evaporation preheater 2, and the materials are directly contacted with secondary steam to preheat to the temperature required by the process, so that the temperature range in which thermophilic bacteria are easy to breed and propagate is avoided. The steam is directly and uniformly mixed with the materials by a steam direct injection sterilization technology, so that the required sterilization temperature is reached. The utility model discloses a low thermophilic bacteria falling film evaporation ware system of dairy industry, the advantage that has for prior art is: the material is indirectly preheated for only one time and then directly enters the flash evaporation preheater 2, the material is directly contacted with secondary steam to preheat to the temperature required by the process, and the temperature range in which thermophilic bacteria are easy to breed and propagate is avoided; the steam is directly and uniformly mixed with the materials to reach the required sterilization temperature.
The utility model discloses a low thermophilic bacteria falling film evaporation ware system of dairy industry please refer to fig. 1, on the basis of the preceding technical scheme also can be that the temperature is 40 ~ 45 ℃ the material in tubular preheater 11. Therefore, in the material preheating process, the material is preheated to 40-45 ℃ by using the steam in the last-effect multi-effect evaporator in the tubular preheater 11, the energy utilization rate is improved, and the temperature is controlled to reach the range value of thermophilic bacteria. The further preferred technical scheme is as follows: the material with the temperature of 65-70 ℃ is arranged in the upper end of the flash evaporation preheater 2. Thus, the material passing through the tubular preheater 11 directly enters the flash preheater 2, and is preheated to 65-70 ℃ in this stage. The critical temperature range for thermophilic growth is quickly exceeded when the emulsion droplets are suspended in air and the direct contact flash preheater 2 process virtually eliminates the problem of the surface of the tubular preheater 11 contacting the non-sterile material to grow thermophilic microorganisms in the optimal temperature range.
The utility model discloses a low thermophilic bacteria falling film evaporation ware system of dairy industry please refer to fig. 1, on the basis of the preceding technical scheme can also be that one end of hot pressure pump 5 is connected with the multiple effect evaporation ware, the other end of hot pressure pump 5 is connected with industrial steam. Thus, the industrial steam is conveyed to the hot pressure pump 5 through a pipeline to supply heat for the multi-effect evaporator, and further supply a heat source for the whole falling film evaporator system.
The utility model discloses a low thermophilic bacteria falling film evaporation ware system of dairy industry please refer to fig. 1, can also be on the basis of preceding technical scheme: the falling film evaporator 1 comprises a first-effect evaporator 12, a second-effect evaporator 13, a third-effect evaporator 14, a first-effect separator 15, a second-effect separator 16, a third-effect separator 17 and the tubular preheater 11, one end of the heat pressure pump 5 is connected with the first-effect evaporator 12, the lower part of the first-effect evaporator 12 is connected with the first-effect separator 15, the second-effect evaporator 13 is connected with the second-effect separator 16, the third-effect evaporator 14 is connected with the third-effect separator 17, the lower end of the first-effect evaporator 12 is connected with the upper end of the second-effect evaporator 13, the lower end of the second-effect evaporator 13 is connected with the upper end of the third-effect evaporator 14, and the third-effect separator 17 is connected with the tubular preheater 11. Therefore, the first-effect evaporator 12, the second-effect evaporator 13 and the third-effect evaporator 14 respectively evaporate moisture in the materials, and the first-effect separator 15, the second-effect separator 16 and the third-effect separator 17 separate vapor from liquid in the materials, so that the vapor enters the next evaporator to serve as a heating medium, and multi-effect operation is achieved. The separated liquid materials are conveyed into the top of the secondary evaporator 13 through a pump, and the liquid materials flow downwards along the inside of the secondary evaporator 13 along with the action of gravity, so that the evaporation and separation of the materials in the next step are carried out, and the required material concentration is achieved. The three multi-effect evaporators and the three multi-effect separators are arranged, so that the capacity requirement can be met, the overall efficiency of the falling film evaporator system can be improved, and the energy is saved. The thermocompressor 5 provides a heat source for the one-effect evaporators 12, wherein heat is transferred to the two-effect evaporators 13 and the three-effect evaporators 14 in sequence.
The utility model discloses a low thermophilic bacteria falling film evaporator system of dairy industry please refer to fig. 1, on the basis of the preceding technical scheme also can be that falling film evaporator 1 includes condenser 18, condenser 18 with tubular preheater 11 is connected. In this way, the condenser 18 serves to cool the gas in the tube preheater 11.
In the operation process: the method comprises the steps of preheating materials to 40-45 ℃ in a tubular preheater 11, then enabling the materials to enter a direct contact flash evaporation preheater 2, preheating the materials to 65-70 ℃ in the stage, and sterilizing the materials in a steam sterilization mode. By adopting the novel process flow, the working time of the falling film evaporator system can be prolonged by 16-20 hours, so that the utilization rate of equipment is increased; meanwhile, the cleaning times of the falling film evaporator system are reduced, and the energy consumption is reduced.
The above description is only for the description of several embodiments of the present invention, but the scope of the present invention should not be considered as falling within the scope of the present invention, in which all the equivalent changes or modifications or the equal-scale enlargement or reduction etc. according to the design spirit of the present invention are made.
Claims (6)
1. A low thermophilic bacteria falling film evaporator system of dairy industry which characterized in that: including falling film evaporator (1), flash evaporation pre-heater (2), sterilizer (3) and insulating tube (4), falling film evaporator (1) is including tubular pre-heater (11), at least one multi-effect evaporator and at least one multi-effect separator, tubular pre-heater (11) upper end with flash evaporation pre-heater (2) upper end is connected, flash evaporation pre-heater (2) upper end with sterilizer (3) one end is connected, sterilizer (3) other end with insulating tube (4) one end is connected, insulating tube (4) other end with flash evaporation pre-heater (2) lower extreme is connected, the inboard upper portion of flash evaporation pre-heater (2) and lower part intercommunication, flash evaporation pre-heater (2) lower extreme with multi-effect evaporator upper end is connected, multi-effect evaporator lower part with multi-effect separator is connected, multi-effect separator with tubular pre-heater (11) are connected, the materials pass through the multi-effect evaporator.
2. The dairy industry low thermophile falling film evaporator system of claim 1, wherein: the tubular preheater (11) is internally provided with the material with the temperature of 40-45 ℃.
3. The dairy industry low thermophilic falling film evaporator system of claim 2, wherein: the material with the temperature of 65-70 ℃ is arranged in the upper end of the flash evaporation preheater (2).
4. A dairy industry low thermophilic falling film evaporator system according to any one of claims 1 to 3 wherein: one end of the hot pressure pump (5) is connected with the multi-effect evaporator, and the other end of the hot pressure pump (5) is connected with industrial steam.
5. The dairy industry low thermophilic falling film evaporator system of claim 4, wherein: falling film evaporator (1) includes one effect evaporimeter (12), two effect evaporimeter (13), three effect evaporimeter (14), one effect separator (15), two effect separator (16), three effect separator (17) and tubular heater (11), heat pump (5) one end with one effect evaporimeter (12) are connected, one effect evaporimeter (12) lower part with one effect separator (15) are connected, two effect evaporimeter (13) with two effect separator (16) are connected, three effect evaporimeter (14) with three effect separator (17) are connected, one effect evaporimeter (12) lower extreme with two effect evaporimeter (13) upper end is connected, two effect evaporimeter (13) lower extreme with three effect evaporimeter (14) upper end is connected, three effect separator (17) with tubular heater (11) are connected.
6. A dairy industry low thermophilic falling film evaporator system according to any one of claims 1 to 3 wherein: the falling-film evaporator (1) comprises a condenser (18), the condenser (18) being connected to the tube preheater (11).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920343966.3U CN209752228U (en) | 2019-03-19 | 2019-03-19 | Low thermophilic bacteria falling film evaporator system for dairy industry |
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| CN201920343966.3U CN209752228U (en) | 2019-03-19 | 2019-03-19 | Low thermophilic bacteria falling film evaporator system for dairy industry |
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| CN209752228U true CN209752228U (en) | 2019-12-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113120983A (en) * | 2021-04-29 | 2021-07-16 | 沈阳工业大学 | Method for finishing self-distillation purification by high-temperature water-separating waste heat of steam-injection boiler |
| CN115444036A (en) * | 2022-08-31 | 2022-12-09 | 江苏无凡食品有限公司 | Adult skimmed dairy product and preparation process thereof |
-
2019
- 2019-03-19 CN CN201920343966.3U patent/CN209752228U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113120983A (en) * | 2021-04-29 | 2021-07-16 | 沈阳工业大学 | Method for finishing self-distillation purification by high-temperature water-separating waste heat of steam-injection boiler |
| CN113120983B (en) * | 2021-04-29 | 2023-01-17 | 沈阳工业大学 | Method for finishing self-distillation purification by high-temperature water-separating waste heat of steam-injection boiler |
| CN115444036A (en) * | 2022-08-31 | 2022-12-09 | 江苏无凡食品有限公司 | Adult skimmed dairy product and preparation process thereof |
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Effective date of registration: 20201209 Address after: 065500 Industrial Park, Gu'an County, Langfang City, Hebei Province Patentee after: GUAN ZHONGQING MACHINE DAIRY EQUIPMENT Co.,Ltd. Address before: Room 1002, block C, Zhongya building, No. A8, beifengwo, Haidian District, Beijing 100038 Patentee before: BEIJING CLIM DAIRY EQUIPMENT Co.,Ltd. |
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