CN218583482U - Material refrigeration equipment - Google Patents
Material refrigeration equipment Download PDFInfo
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- CN218583482U CN218583482U CN202221662599.1U CN202221662599U CN218583482U CN 218583482 U CN218583482 U CN 218583482U CN 202221662599 U CN202221662599 U CN 202221662599U CN 218583482 U CN218583482 U CN 218583482U
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- evaporator
- cooling water
- heat pump
- circulating pump
- pump
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Abstract
The utility model relates to a refrigeration technology field discloses a material refrigeration plant, start vacuum pump (11) earlier and take out the noncondensable gas in heat pump evaporator (14) tube side and flash vessel (10), make the material in flash vessel (10) reach the boiling state, produce steam, steam gets into heat pump evaporator (14) tube side, then start material circulating pump (12), the messenger is flowed in flash vessel (10) bottom by cold material, start cooling water circulating pump (13) simultaneously, make the cooling water circulate between heat pump condenser (15) tube side and cooling water source and flow, then start the heat pump, make the steam in the heat pump tube side become liquid water by heat pump evaporator (14) condensation, thereby further improve the vacuum of flash vessel (10), the material in maintaining flash vessel (10) lasts the boiling, constantly evaporate moisture and continuously cool down.
Description
Technical Field
The utility model relates to a material refrigeration technology field, concretely relates to material refrigeration plant.
Background
In summer, the weather is hot, and the materials need to be refrigerated in life, production or processing. The existing refrigeration equipment, such as circulating cooling water refrigeration, MVR evaporation technology, air-conditioning refrigeration technology and the like, has low circulating cooling water refrigeration efficiency and large energy consumption. The MVR evaporation technology is a technology in which secondary steam is mechanically compressed to raise the saturation temperature of the secondary steam and then used as a heat source to provide heat energy for evaporation, and the technology has been widely used in many industries, for example, an MVR evaporation apparatus having an application number of 201910030300.7. And the MVR evaporation technology adopts clean energy, the evaporation energy consumption is low, and the average evaporation energy per ton of water is 30-70 ℃.
However, if the material is required to be evaporated at a lower temperature or the boiling point temperature of the material is too high, the MVR technology has no economic value. If a material needs to be evaporated at 10 c saturated steam, corresponding to a saturated steam density of only 9.37 g/square, then 106.7 g steam needs to be produced per 1 kg of water evaporated, while at 90 c saturated steam, the saturated density is 419 g/square, also one kg of water is evaporated, with a steam amount of only 2.4 square, which is 45 times different, meaning that the flow rate of the steam compressor is 45 times different, and therefore MVR technology is essentially not used. On the other hand, the MVR technology is suitable for the material boiling point temperature rise of 0-15 ℃, if the boiling point temperature rise is too high, the compressor does too much work, the energy is very low compared with a system, and the MVR technology has no economic value. However, if the temperature is reduced by evaporation at low temperature, the boiling point temperature of the same material is greatly reduced, so that the work of the compressor is also greatly reduced, for example, 50% sulfuric acid is evaporated under 100 ℃ saturated steam, the boiling point temperature is 24.5 ℃, and the boiling point temperature is 12.8 ℃ when the material is evaporated under 10 ℃ saturated steam, so that the work of the compressor is reduced by the steam at low temperature, and the refrigeration efficiency is also improved.
SUMMERY OF THE UTILITY MODEL
Aiming at the defect of refrigerating low-temperature or high-boiling-point materials in the prior art, the material refrigerating equipment is provided.
In order to achieve the above object, the present invention provides the following technical solutions:
a material refrigeration device comprises a flash evaporator and a vacuum pump for pumping gas in the flash evaporator, and is characterized by further comprising a heat pump, a material circulating pump and a cooling water circulating pump, wherein the heat pump comprises an evaporator and a condenser, the top of the flash evaporator is communicated with a tube side of the evaporator, and the other end of the tube side of the evaporator is communicated with the vacuum pump; the material circulating pump is communicated with the flash evaporator to circulate the material between the flash evaporator and the pipeline; the tube side in the condenser is communicated with a cooling water circulating pump, so that cooling water circularly flows between the tube side of the heat pump condenser and a cooling water source.
Preferably, the refrigeration system further comprises a material tank for storing materials to be refrigerated, the flash evaporator and the material circulating pump are communicated with the material tank through pipelines, and the material circulating pump extracts the materials in the material tank and enables the materials to circulate among the flash evaporator, the pipelines and the material tank.
Preferably, a stirrer is arranged in the material tank, and a stirring paddle of the stirrer extends into the material to drive the material to be rapidly mixed.
Preferably, a valve is arranged on a pipeline between the material tank and the material circulating pump.
Preferably, the evaporator comprises a gas-liquid separator, a tube pass in the evaporator is connected with one port of the gas-liquid separator, a vacuum pump is connected with the other port of the gas-liquid separator, and a liquid discharge pipe is arranged at the lower port of the gas-liquid separator.
Preferably, the gas-liquid separator further comprises a condensate tank, and the drain pipe of the gas-liquid separator is inserted below the liquid level of the condensate tank.
Preferably, the cooling water system further comprises a cooling water source, wherein the water outlet end of the cooling water source is sequentially communicated with the cooling water circulating pump and the pipe pass water inlet end in the condenser, and the pipe pass water outlet end in the condenser is communicated with the water return end of the cooling water source; the cooling water source can be tap water, river water, or condensed water generated by a cooling tower and a refrigerator.
Compared with the prior art, the beneficial effects of the utility model are that:
the materials in the flash evaporator are pumped to be in a boiling state to produce water vapor, and the water vapor is condensed into liquid water by the heat pump evaporator, so that the vacuum degree of the flash evaporator is further improved, the materials in the flash evaporator are kept boiling continuously, the temperature is continuously reduced by continuously evaporating water, the refrigeration of the materials with low temperature or high boiling point is realized, and the temperature is reduced to 5-50 ℃.
Drawings
Fig. 1 is a schematic structural diagram of the material refrigerating equipment.
In the drawings: 10-flash evaporator, 11-vacuum pump, 12-material circulating pump, 13-cooling water circulating pump, 14-evaporator, 15-condenser, 16-material tank, 161-stirrer, 162-valve, 17-gas-liquid separator, 18-condensate tank and 19-cooling water source.
Detailed Description
Example 1: the utility model discloses a preferred embodiment provides a material refrigeration plant, including flash vessel 10 and take out the vacuum pump 11 of the interior gas of flash vessel 10, its characterized in that still includes heat pump and material circulating pump 12 and cooling water circulating pump 13, and the heat pump includes evaporimeter 14 and condenser 15, and the top of flash vessel 10 communicates with the tube side of evaporimeter 14, and the tube side other end of evaporimeter 14 communicates with vacuum pump 11; the material circulating pump 12 is communicated with the flash evaporator 10 to circulate the material between the flash evaporator 10 and the pipeline; the tube side in the condenser 15 is connected to a cooling water circulation pump 13, so that cooling water is circulated between the tube side of the heat pump condenser 15 and a cooling water source.
The material refrigerating equipment further comprises a material tank 16 for storing materials to be refrigerated, a gas-liquid separator 17 and a water condensing tank 18, the flash evaporator 10 and the material circulating pump 12 are communicated with the material tank 16 through pipelines, and the material circulating pump 12 extracts materials in the material tank 16 and enables the materials to circulate among the flash evaporator 10, the pipelines and the material tank 16.
The tube side in the evaporator 14 is connected with one port of the gas-liquid separator 17, the vacuum pump 11 is connected with the other port of the gas-liquid separator 17, the lower port of the gas-liquid separator 17 is provided with a drain pipe, and the drain pipe of the gas-liquid separator 17 is inserted below the liquid level of the condensate tank 18.
The used cooling water is from a cooling water source 19, the water outlet end of the cooling water source 19 is sequentially communicated with a cooling water circulating pump and the tube pass water inlet end in the condenser, and the tube pass water outlet end in the condenser is communicated with the water return end of the cooling water source 19; the cooling water source 19 may be tap water, river water, or condensed water generated by a cooling tower or a refrigerator.
The materials in the flash evaporator 10 are vacuumized to reach a boiling state to produce water vapor, and the water vapor is condensed into liquid water by the heat pump evaporator 10, so that the vacuum degree of the flash evaporator is further improved, the materials in the flash evaporator 10 are kept boiling continuously, the water is continuously evaporated to be cooled continuously, the refrigeration of the high-boiling-point materials at low temperature or high temperature is realized, and the temperature is reduced to 5-50 ℃.
Example 2: the utility model discloses a preferred embodiment provides a material refrigeration method, and its difference with above-mentioned embodiment only lies in: the material tank 16 is internally provided with a stirrer 161, and a stirring paddle of the stirrer 161 extends into the material to drive the material to be rapidly mixed.
Example 3: the utility model discloses a preferred embodiment provides a material refrigeration method, and its difference with above-mentioned embodiment only lies in: a valve 162 is arranged on a pipeline between the material groove 16 and the material circulating pump 12.
The refrigeration method of the refrigeration equipment comprises the following steps:
(1) starting a vacuum pump 11, pumping out non-condensable gas in the tube pass of the flash evaporator 10 and the evaporator 14 of the heat pump to enable the material to reach a boiling state, and enabling steam generated by boiling of the material to enter the tube pass of the evaporator 14 of the heat pump;
(2) starting a material circulating pump 12 to circulate the material between the flash evaporator 10 and the pipeline;
(3) starting a cooling water circulating pump 13 to make cooling water circularly flow between the tube pass of a heat pump condenser 15 and a cooling water source;
(4) and starting the heat pump to condense the water vapor generated by boiling the material by the evaporator 14 of the heat pump, simultaneously transferring heat to cooling water by the condenser 15 of the heat pump, maintaining the continuous boiling of the material in the flash evaporator 10, continuously evaporating water to continuously cool the material, and cooling the material to 5-50 ℃.
Claims (6)
1. The material refrigeration equipment comprises a flash evaporator (10) and a vacuum pump (11) for pumping gas in the flash evaporator (10), and is characterized by further comprising a heat pump, a material circulating pump (12) and a cooling water circulating pump (13), wherein the heat pump comprises an evaporator (14) and a condenser (15), the top of the flash evaporator (10) is communicated with a tube pass of the evaporator (14), and the other end of the tube pass of the evaporator (14) is communicated with the vacuum pump (11); the material circulating pump (12) is communicated with the flash evaporator (10) to circulate the material between the flash evaporator (10) and the pipeline; the tube side in the condenser (15) is communicated with a cooling water circulating pump (13) so that cooling water circularly flows between the tube side of the heat pump condenser (15) and a cooling water source.
2. The material refrigerating device according to claim 1, characterized by further comprising a material tank (16) for storing materials to be refrigerated, wherein the flash evaporator (10) and the material circulating pump (12) are communicated with the material tank (16) through pipelines, and the material circulating pump (12) is used for pumping the materials in the material tank (16) and circulating the materials between the flash evaporator (10) and the pipelines and the material tank (16).
3. The material refrigerating device according to claim 2, characterized in that a stirrer (161) is arranged in the material tank (16), and a stirring paddle of the stirrer (161) extends into the material to drive the material to be rapidly mixed.
4. The material refrigerating device according to claim 2, characterized in that a valve (162) is arranged on a pipeline between the material tank (16) and the material circulating pump (12).
5. The material refrigeration equipment according to claim 1, characterized by comprising a gas-liquid separator (17), wherein a tube side in the evaporator (14) is connected with one port of the gas-liquid separator (17), a vacuum pump (11) is connected with the other port of the gas-liquid separator (17), and a liquid discharge pipe is arranged at the lower port of the gas-liquid separator (17).
6. A material refrigeration plant according to claim 5, characterized in that it further comprises a condensate tank (18), the drain of the gas-liquid separator (17) being inserted below the liquid level in the condensate tank (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221662599.1U CN218583482U (en) | 2022-06-29 | 2022-06-29 | Material refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221662599.1U CN218583482U (en) | 2022-06-29 | 2022-06-29 | Material refrigeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218583482U true CN218583482U (en) | 2023-03-07 |
Family
ID=85359058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221662599.1U Active CN218583482U (en) | 2022-06-29 | 2022-06-29 | Material refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218583482U (en) |
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2022
- 2022-06-29 CN CN202221662599.1U patent/CN218583482U/en active Active
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