CN217593859U - Double-effect evaporation concentration system - Google Patents
Double-effect evaporation concentration system Download PDFInfo
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- CN217593859U CN217593859U CN202221357090.6U CN202221357090U CN217593859U CN 217593859 U CN217593859 U CN 217593859U CN 202221357090 U CN202221357090 U CN 202221357090U CN 217593859 U CN217593859 U CN 217593859U
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Abstract
The utility model discloses a economic benefits and social benefits evaporative concentration system, including first feed liquid heater, first feed liquid evaporimeter, first vapour and liquid separator, the steam condenser that loops through the pipe connection, evaporative concentration system still includes steam source and heat pump set, first feed liquid heater is connected with the steam source, heat pump set passes through pipe connection with the steam condenser and forms coolant circulation circuit, first feed liquid heater passes through pipe connection with the heat pump set and forms the coolant circulation circuit. The double-effect evaporation concentration system has the advantages of reducing waste heat waste, improving the energy-saving effect, reducing the operation cost and the like.
Description
Technical Field
The utility model relates to a food, pharmaceutical packaging mechanical equipment technical field especially relate to a economic benefits and social benefits evaporative concentration system.
Background
The double-effect concentrator is suitable for concentrating liquid materials such as traditional Chinese medicines, chemical industry, foods, biological fermentation and the like, and is energy-saving concentrating equipment meeting the concentration requirement of thermosensitive materials.
The traditional double-effect concentrator equipment generally comprises a first-effect heater, a first-effect evaporation chamber, a second-effect heater, a second-effect evaporation chamber, a vapor-liquid separator, a liquid collecting tank, a condenser and the like. The traditional double-effect concentrator generally adopts double-effect simultaneous evaporation, secondary steam is fully utilized, so that the investment of a boiler is saved, the energy consumption is also saved, the energy consumption is reduced by 50 percent compared with that of a single-effect concentrator, but a plurality of places with unsatisfactory energy utilization rate exist, for example, hot water obtained after steam used for a single-effect heater is condensed is directly discharged to cause waste heat; the hot water obtained after the secondary steam used for the double-effect heater is condensed is directly discharged to cause waste heat; waste steam from the two-effect gas-liquid separator is directly condensed into liquid and then discharged, so that waste heat is wasted, and the overall energy-saving effect of the equipment is not ideal. The traditional double-effect concentrator adopts steam heating, has high operating cost, needs an evaporation system and a cooling water system which are matched, and has poor integral energy-saving effect.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art's not enough, provide a can reduce used heat extravagant, improve energy-conserving effect and reduce running cost's economic benefits and social benefits evaporative concentration system.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a economic benefits and social benefits evaporative concentration system, includes first feed liquid heater, first feed liquid evaporimeter, first vapour and liquid separator, the steam condenser that loops through the pipe connection, evaporative concentration system still includes steam source and heat pump set, first feed liquid heater is connected with the steam source, heat pump set and steam condenser pass through pipe connection and form coolant circulation circuit, first feed liquid heater passes through pipe connection with heat pump set and forms heating medium circulation circuit.
As a further improvement of the above technical solution:
and a first circulating pump is arranged on the cooling medium circulating loop.
And a cooling medium temporary storage container is also arranged on the cooling medium circulation loop.
And a second circulating pump is arranged on the heating medium circulating loop.
And a heating medium temporary storage container is also arranged on the heating medium circulating loop.
The double-effect evaporation concentration system further comprises a third circulating pump, and the first feed liquid heater, the first feed liquid evaporator and the third circulating pump are connected through pipelines to form a first material circulating flow loop.
The third circulating pump is a horizontal centrifugal pump.
Second feed liquid heater, second feed liquid evaporator and second gas-liquid separator have connected gradually between first gas-liquid separator and the steam condenser, economic benefits and social benefits evaporative concentration system still includes the fourth circulating pump, second feed liquid heater, second feed liquid evaporator and fourth circulating pump pass through pipe connection and form second feed liquid circulation flow circuit.
The fourth circulating pump is a horizontal centrifugal pump.
The steam source includes a steam generator.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses a economic benefits and social benefits evaporative concentration system, when the system normal operating, produce steam and supply to carry out the heat transfer in the first feed liquid heater through the steam source for whole economic benefits and social benefits evaporative concentration system normal operating. Meanwhile, a cooling medium (such as water) is continuously introduced into the steam condenser, the cooling water circularly flows along the cooling medium circulation loop under the action of the heat pump unit, and the heating medium circularly flows along the heating medium circulation loop under the action of the heat pump unit. The cooling medium in the cooling medium circulation loop is continuously exchanged for heat in the steam condenser in the circulation flow, heat is provided for the heating medium in the heating medium circulation loop through the heat pump unit, after the heating medium in the heating medium circulation loop reaches the specified temperature, the steam source is closed, the steam source is not introduced into the first feed liquid heater any more, at the moment, the heating medium is introduced into the first feed liquid heater for continuously exchanging heat, and the normal work of the whole system is ensured. Therefore, waste heat generated after heat exchange of waste steam from the steam condenser is recycled, waste is avoided, and an energy-saving effect is achieved. And partial heat of the waste steam from the steam condenser is transferred to the first feed liquid heater through the cooling medium and the heating medium to heat the first feed liquid heater, so that the supply time of a steam source is reduced, and the running cost is reduced. The double-effect evaporation concentration system can reduce waste heat waste, improve the energy-saving effect and reduce the operation cost.
The utility model discloses a economic benefits and social benefits evaporative concentration system, first material circulation loop form forced circulation through the third circulating pump, improve coefficient of heat transfer, compare natural circulation evaporative concentration, adopt the forced circulation mode, coefficient of heat transfer is high%, and anti-scaling can be fit for high viscosity high concentration material.
The utility model discloses a economic benefits and social benefits evaporative concentration system, second material circulation loop form forced circulation through the fourth circulating pump, improve coefficient of heat transfer, compare natural circulation evaporative concentration, adopt the forced circulation mode, coefficient of heat transfer is high%, and anti-scaling can be fit for high viscosity high concentration material.
Drawings
Fig. 1 is a schematic structural diagram of the double-effect evaporation and concentration system of the present invention.
The reference numerals in the figures denote:
1. a first feed liquid heater; 2. a first feed liquid evaporator; 21. a third circulation pump; 3. a first gas-liquid separator; 4. a second feed liquid heater; 5. a second feed liquid evaporator; 51. a fourth circulation pump; 6. a second gas-liquid separator; 7. a steam condenser; 71. a first circulation pump; 72. a cooling medium temporary storage container; 8. a source of steam; 9. a heat pump unit; 91. a second circulation pump; 92. the heating medium temporarily stores the container.
Detailed Description
The invention will be described in further detail with reference to the drawings and specific embodiments.
Fig. 1 shows the utility model discloses an embodiment of double-effect evaporative concentration system, this double-effect evaporative concentration system is including the first feed liquid heater 1 that loops through the pipe connection, first feed liquid evaporimeter 2, first vapour and liquid separator 3, steam condenser 7, evaporative concentration system still includes steam source 8 and heat pump set 9, first feed liquid heater 1 is connected with steam source 8, heat pump set 9 passes through the pipe connection with steam condenser 7 and forms cooling medium circulation circuit, first feed liquid heater 1 passes through the pipe connection with heat pump set 9 and forms heating medium circulation circuit.
When the system normally operates, steam is generated by the steam source 8 and supplied to the first feed liquid heater 1 for heat exchange, so that the whole double-effect evaporation and concentration system normally operates. Meanwhile, a cooling medium (such as water) is continuously introduced into the steam condenser 7, the cooling water circularly flows along the cooling medium circulation loop under the action of the heat pump unit 9, and the heating medium circularly flows along the heating medium circulation loop under the action of the heat pump unit 9. The cooling medium in the cooling medium circulation loop is continuously exchanged for the heat in the steam condenser 7 in the circulation flow, and then the heat pump unit 9 provides heat for the heating medium in the heating medium circulation loop, so that the steam source 8 is closed after the heating medium in the heating medium circulation loop reaches a specified temperature (such as 95 ℃), the steam source 8 is not introduced into the first feed liquid heater 1, and at the moment, the heating medium is introduced into the first feed liquid heater 1 for continuous heat exchange, thereby ensuring the normal work of the whole system. Therefore, waste heat generated after heat exchange of waste steam from the steam condenser 7 is recycled, waste is avoided, and an energy-saving effect is achieved. In addition, partial heat of the waste steam from the steam condenser 7 is transferred to the first feed liquid heater 1 through the cooling medium and the heating medium to heat the first feed liquid heater 1, so that the supply time of the steam source 8 is reduced, and the operation cost is reduced. The double-effect evaporation concentration system can reduce waste heat waste, improve the energy-saving effect and reduce the operation cost.
In this embodiment, the cooling medium circulation circuit is provided with a first circulation pump 71. The first circulation pump 71 powers the circulation of the cooling medium.
In this embodiment, a cooling medium temporary storage container 72 is further provided on the cooling medium circulation circuit. Ensuring the cooling medium to be sufficient.
In this embodiment, the heating medium circulation circuit is provided with a second circulation pump 91. The second circulation pump 91 provides power for circulation of the heating medium.
In this embodiment, a temporary heating medium storage container 92 is further provided on the heating medium circulation loop. Ensuring the heating medium to be sufficient.
In this embodiment, the double-effect evaporation and concentration system further includes a third circulation pump 21, and the first feed liquid heater 1, the first feed liquid evaporator 2 and the third circulation pump 21 are connected by a pipeline to form a first material circulation flow loop. The first material circulating loop forms forced circulation through the third circulating pump 21, so that the heat transfer coefficient is improved, compared with natural circulation evaporation and concentration, the forced circulation mode is adopted, the heat transfer coefficient is 25% higher, the scale is prevented, and the forced circulation loop is suitable for high-viscosity and high-concentration materials. The third circulation pump 21 is preferably a horizontal centrifugal pump.
In this embodiment, a second feed liquid heater 4, a second feed liquid evaporator 5 and a second gas-liquid separator 6 are sequentially connected between the first gas-liquid separator 3 and the steam condenser 7, the double-effect evaporation and concentration system further includes a fourth circulating pump 51, and the second feed liquid heater 4, the second feed liquid evaporator 5 and the fourth circulating pump 51 are connected through a pipeline to form a second feed liquid circulating and flowing loop. The first feed liquid heater 1, the first feed liquid evaporator 2, the first gas-liquid separator 3, the second feed liquid heater 4, the second feed liquid evaporator 5, the second gas-liquid separator 6 and the steam condenser 7 are connected in sequence through pipelines. The second material circulating loop forms forced circulation through the fourth circulating pump 51, so that the heat transfer coefficient is improved, compared with natural circulation evaporation and concentration, the forced circulation mode is adopted, the heat transfer coefficient is 25% higher, the scale is prevented, and the forced circulation loop is suitable for high-viscosity and high-concentration materials. The fourth circulation pump 51 is preferably a horizontal centrifugal pump.
In this embodiment, the steam source 8 includes a steam generator. The first feed liquid heater 1 is connected with a steam generator. The steam generator is an electric heating steam generator.
When the system normally operates, firstly, adding a proper amount of water into an electric heating steam generator, supplying power to an electric heating rod of the electric heating steam generator, conveying the electric heating steam generated in the electric heating steam generator into a first feed liquid heater 1 through a pipeline and a valve for heat exchange, so that the whole double-effect evaporation concentration system normally operates, simultaneously opening two third circulating pumps 21 and a fourth circulating pump 51, and meanwhile, continuously introducing cooling water (cooling medium) into a pipe pass of a steam condenser 7 to form waste hot water, and continuously circulating the waste hot water through a first circulating pump 71 and a cooling medium temporary storage container 72, and introducing the waste hot water into a waste hot water inlet of a heat pump unit 9 (an ultrahigh temperature heat pump unit) when the temperature of the waste hot water reaches 50 ℃, so that one circulation is realized, the temperature of the waste hot water entering the heat pump unit 9 is 50 ℃, the temperature of the waste heat of the heat pump unit 9 is 45 ℃, and the temperature difference is 5 ℃; meanwhile, heating medium circulation is continuously performed between a heating medium inlet and a heating medium outlet of the heat pump unit 9 through the second circulating pump 91 and the heating medium temporary storage container 92 until the temperature of the heating medium inlet of the heat pump unit 9 is 90 ℃ and the temperature of the heating medium outlet is 95 ℃, an electric heating rod in the electric heating steam generator is closed, and a valve on a steam pipeline is closed, so that electric heating steam is not introduced into the first feed liquid heater 1 any more; meanwhile, a heating medium with the temperature of 95 ℃ is introduced into the first feed liquid heater 1 to continuously exchange heat, so that the normal work of the whole system is ensured. The heating medium is preferably liquid water.
The scheme adopts a water bath type heat pump technology, saves the filling amount of the working medium by more than 40 percent, and directly reduces the later maintenance and use cost of the refrigerant. The original structure of the compressor is not changed, and the COP value of the compressor is effectively improved. The forced circulation mode has the heat transfer coefficient of 25 percent, is anti-scaling and can be suitable for high-viscosity and high-concentration materials. Accords with the approval process of the drug production without changing the original process. Pure electric evaporation without using industrial steam. The production and operation cost is reduced. Compared with the traditional double effects of 1000Kg/h, the single device works for 10h every day for 300 days a year, and can save 20.1 ten thousand yuan of energy consumption cost for customers.
The heat pump unit 9 passes through the pipe connection with steam condenser 7, has heat transfer medium inside the pipeline, when damage appears in heat pump unit 9, only can cause the pollution to the medium in the pipeline, can not cause the liquid medicine pollution.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical essence of the present invention should fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a double-effect evaporative concentration system, includes first feed liquid heater (1), first feed liquid evaporimeter (2), first vapour and liquid separator (3), steam condenser (7) that loop through the pipe connection, its characterized in that: evaporative concentration system still includes steam source (8) and heat pump set (9), first feed liquid heater (1) is connected with steam source (8), heat pump set (9) and steam condenser (7) form coolant circulation circuit through the pipe connection, first feed liquid heater (1) forms the coolant circulation circuit through the pipe connection with heat pump set (9).
2. The dual effect evaporative concentration system of claim 1 wherein: the cooling medium circulation loop is provided with a first circulation pump (71).
3. The dual effect evaporative concentration system of claim 2 wherein: and a cooling medium temporary storage container (72) is also arranged on the cooling medium circulation loop.
4. The dual effect evaporative concentration system of claim 1 wherein: and a second circulating pump (91) is arranged on the heating medium circulating loop.
5. The dual effect evaporative concentration system of claim 4 wherein: and a heating medium temporary storage container (92) is also arranged on the heating medium circulating loop.
6. The dual effect evaporative concentration system of any one of claims 1 to 5 wherein: double-effect evaporative concentration system still includes third circulating pump (21), first feed liquid heater (1), first feed liquid evaporimeter (2) and third circulating pump (21) pass through the pipe connection and form first material circulation flow circuit.
7. The dual effect evaporative concentration system of claim 6 wherein: the third circulating pump (21) is a horizontal centrifugal pump.
8. The dual effect evaporative concentration system of any one of claims 1 to 5 wherein: second feed liquid heater (4), second feed liquid evaporimeter (5) and second gas-liquid separator (6) have connected gradually between first gas-liquid separator (3) and steam condenser (7), economic benefits and social benefits evaporative concentration system still includes fourth circulating pump (51), second feed liquid heater (4), second feed liquid evaporimeter (5) and fourth circulating pump (51) form second feed liquid circulation flow loop through the pipe connection.
9. The dual effect evaporative concentration system of claim 8 wherein: the fourth circulating pump (51) is a horizontal centrifugal pump.
10. The dual effect evaporative concentration system of any one of claims 1 to 5 wherein: the steam source (8) comprises a steam generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221357090.6U CN217593859U (en) | 2022-05-31 | 2022-05-31 | Double-effect evaporation concentration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221357090.6U CN217593859U (en) | 2022-05-31 | 2022-05-31 | Double-effect evaporation concentration system |
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| CN217593859U true CN217593859U (en) | 2022-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221357090.6U Active CN217593859U (en) | 2022-05-31 | 2022-05-31 | Double-effect evaporation concentration system |
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- 2022-05-31 CN CN202221357090.6U patent/CN217593859U/en active Active
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