CN216934722U - Heating system for pressure reduction evaporator - Google Patents
Heating system for pressure reduction evaporator Download PDFInfo
- Publication number
- CN216934722U CN216934722U CN202220198941.0U CN202220198941U CN216934722U CN 216934722 U CN216934722 U CN 216934722U CN 202220198941 U CN202220198941 U CN 202220198941U CN 216934722 U CN216934722 U CN 216934722U
- Authority
- CN
- China
- Prior art keywords
- oil
- condenser
- evaporator
- heater
- compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a heating system for a decompression evaporator, which comprises a heating device, a pressure reducing device and a control device, wherein the heating device comprises a heating pipe and a pressure reducing valve; the device comprises a compressor, a heater, a condenser, an oil-gas separator, an oil condenser, an expansion valve, an electromagnetic valve, a sight glass and an evaporator, wherein the output end of a tube pass of the heater is connected with the low-pressure suction end of the compressor, and the input end of the tube pass of the heater is connected with the output end of the tube pass of the condenser; the exhaust port of the compressor is connected with the inlet end of the oil-gas separator, and the oil outlet of the oil-gas separator is connected with the oil condenser, so that the problem that the existing pressure reduction evaporator is saturated with water vapor, the consumption of cooling water is high, and the operation is high is solved; the problem of product deterioration caused by overhigh temperature of the heated saturated steam in the working process of the heat-sensitive material is solved; the heating system for the pressure reducing evaporator is provided by the MVR system in order to solve the problems of explosive risks and the like generated in the process of compressing flammable and explosive organic solvents.
Description
Technical Field
The present invention relates to a heating system for a decompression evaporator.
Background
At present, a heat source for the pressure reduction evaporator is industrial saturated water vapor, or a steam generator is used for generating saturated water vapor to provide a pyrogen for a system, or an MVR concentration system is used for energy-saving concentration.
This heating with saturated steam has the following drawbacks:
1. the equipment has high operation energy consumption, the evaporation consumes a large amount of saturated steam, and the condensation of the evaporated secondary steam consumes a large amount of cooling water.
2. The equipment operation cost is high, and on one hand, the equipment operation cost is derived from the use cost of saturated steam, and on the other hand, the equipment operation cost is derived from the consumption cost of cooling water.
3. The heat-sensitive materials are deteriorated in the heating process due to the heating of saturated steam, and the quality of the finished products is affected.
4. Because the MVR (mechanical vapor recompression) system compresses secondary vapor, the pressure and the temperature of the secondary vapor are improved, and the compressed vapor is used for heating equipment. Flammable and explosive organic solvents have low flash explosion points, have explosion risks in the compression process and have potential safety hazards.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that the prior pressure reduction evaporator has high operation cost due to large consumption of saturated vapor and cooling water; the problem of product deterioration caused by overhigh temperature of the heated saturated steam in the working process of the heat-sensitive material is solved; the MVR system is provided with a heating system for a pressure reduction evaporator due to the problems of explosive risks and the like generated in the process of compressing flammable and explosive organic solvents.
The technical scheme for realizing the purpose is as follows: a heating system for a pressure reducing evaporator, comprising: the system comprises a compressor, a heater, a condenser, an oil-gas separator, an oil condenser, an expansion valve, an electromagnetic valve, a sight glass and an evaporator;
the output end of the tube pass of the heater is connected with the low-pressure suction end of the compressor, and the input end of the tube pass of the heater is connected with the output end of the tube pass of the condenser; the exhaust port of the compressor is connected with the inlet end of the oil-gas separator, the oil outlet of the oil-gas separator is connected with the oil condenser, and the cold oil discharge end of the oil condenser is connected with the cold oil recovery end of the compressor; the steam outlet of the oil-steam separator is connected with the input end of the tube pass of the condenser; the steam outlet of the evaporator is connected with the input end of the shell pass of the heater; and the material outlet and the material inlet of the evaporator are respectively connected with two ends of the shell side of the condenser.
Preferably, an expansion valve is disposed between the condenser and the heater.
Preferably, the output end of the shell side of the heater is connected with a condensate discharge port.
Preferably, a solenoid valve is arranged on a pipeline connected between the oil condenser and the oil outlet of the oil-gas separator.
Preferably, a sight glass is arranged on a pipeline between the electromagnetic valve and the oil condenser.
The utility model has the beneficial effects that:
1. the equipment does not consume saturated steam any more in the working process, so that steam energy is saved, meanwhile, the heating system also serves as a cooling medium in the working engineering of the decompression evaporator to condense secondary steam of the concentrator, the consumption of cooling water circulating water during the working of the concentrator is reduced, and the running cost of the equipment is reduced;
2. the temperature of the system (the temperature adjusting range of the system (60-100 ℃)) can be adjusted according to the heat-sensitive property of the material so as to meet the heat-sensitive requirement of the material and ensure the quality of the material;
3. the heating system is a set of self-sealing circulation system, does not contact with the material and the secondary steam evaporated by the solvent in the working process, and avoids the explosion risk of MVR compression of flammable and explosive solvent steam.
Drawings
FIG. 1 is a schematic of the present invention.
In the figure: 1. a compressor; 2. a heater; 3. a condenser; 4. an oil-vapor separator; 5. an oil condenser; 6. an expansion valve; 7. an electromagnetic valve; 8. a sight glass; 9. an evaporator; 10. an exhaust port; 11. a low pressure suction end.
Detailed Description
The technical scheme of the utility model is clearly and completely described in the following with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.
The utility model will be further explained with reference to the drawings.
As shown in figure 1, the heating system for the decompression evaporator comprises a compressor 1, a heater 2, a condenser 3, an oil-gas separator 4, an oil condenser 5, an expansion valve 6, an electromagnetic valve 7, a sight glass 8 and an evaporator 9, wherein the output end of the tube pass of the heater 2 is connected with the low-pressure suction end 11 of the compressor 1, and the input end of the tube pass of the condenser 3 is connected with the output end of the tube pass of the condenser 3; an exhaust port 10 of the compressor 1 is connected with an inlet end of the oil-gas separator 4, an oil outlet of the oil-gas separator 4 is connected with the oil condenser 5, a cold oil discharge end of the oil condenser 5 is connected with a cold oil recovery end of the compressor 1, the compressor 1 is a screw compressor, and the screw compressor is large in compression ratio, high in efficiency, low in energy consumption and large in compression temperature rise; the steam outlet of the oil-steam separator 4 is connected with the input end of the tube pass of the condenser 3, the oil-steam separator 4 is designed in a vertical structure, high-temperature and high-pressure steam enters the separator from the top, oil and steam are separated in the separator, and the separated high-pressure steam is discharged from the middle exhaust port of the oil-steam separator 4 and enters the condenser 3; oil is discharged from an oil outlet at the bottom of the oil-gas separator 4, passes through an electromagnetic valve 7 and a sight glass 8 and then enters an oil condenser 5; a steam outlet of the evaporator 9 is connected with an input end of a shell pass of the heater 2, the shell pass is designed with a single-arch baffle plate, and an inlet of secondary steam and a condensate outlet of the secondary steam are designed at the diagonal positions of the shell pass; the tube pass is designed into a multi-tube pass structure, so that the flow rate of Freon gas is improved, and cooling oil of the system is prevented from being deposited in the heater 2; a material outlet and a material inlet of the evaporator 9 are respectively connected with two ends of the shell pass of the condenser 3; an expansion valve 6 is arranged between the condenser 3 and the heater 2, the condenser 3 is a horizontal fixed tube plate tube type heat exchanger, the material in the material evaporator 9 is removed on the tube side, and the high-pressure and high-temperature gas of Freon is removed on the shell side. In order to improve the heat transfer efficiency of the condenser 3, the tube side is designed into a multi-tube side structure; the shell pass is provided with a baffle plate and a steam distribution plate to improve the heat transfer efficiency, and the baffle plate adopts a double-arch structure. If the materials in the evaporator 9 have crystallization characteristics, the condenser 3 is designed into a vertical fixed tube plate tube type heat exchanger, the materials are removed on the tube side, the Freon high-pressure gas is removed on the shell side, and a single arc-shaped baffle plate is designed on the shell side, so that the heat transfer efficiency is increased. The condensed high-pressure low-temperature gas enters a heater 2; the output end of the shell side of the heater 2 is connected with a condensate discharging port; an electromagnetic valve 7 is arranged on a pipeline connected between the oil condenser 5 and an oil outlet of the oil-gas separator 4; a sight glass 8 is arranged on a pipeline between the electromagnetic valve 7 and the oil condenser 5.
The working principle is as follows: the secondary steam generated in the evaporator 9 is discharged from an exhaust port at the top and enters the heater 2, the freon in the heater 2 is heated and evaporated and enters the compressor 1, the compressor 1 starts to work, the low-pressure and high-temperature steam in the compressor 1 is compressed into high-temperature and high-pressure steam, the high-pressure steam is discharged from an exhaust port 10 at the high-pressure end of the compressor 1 and enters the oil-steam separator 4 to separate oil from the steam, the separated steam enters the condenser 3 from the exhaust port of the oil-steam separator 4 to be condensed, the condensed steam is discharged from a steam discharge port of the condenser 3, the exhaust pressure can be automatically adjusted through the expansion valve 6, the adjusted low-pressure and low-temperature steam enters the heater 2 to be heated, and the heated low-pressure and high-temperature steam is sucked into the compressor 1 from a low-pressure air suction end 11 of the compressor 1; the oil separated by the oil-gas separator 4 is discharged from an oil outlet at the lower end of the oil-gas separator 4 under the action of high-pressure and high-temperature gas discharged by the compressor 1, enters the oil condenser 5 through the electromagnetic valve 7 and the sight glass 8, and returns to the compressor 1 under the action of pressure to cool the compressor 1.
The heating system forms a closed circulation system, and the conversion of Freon in a vapor state → a liquid state → a vapor state is realized in the circulation process, so that the whole process of heat absorption and heat release of the system is realized. The heat release process of the system in the condenser 3 is a heating process for providing heat energy for the evaporation system as a pyrogen; the heat absorption process in the heater 2 is the secondary steam process of the condensing and evaporating system as the cooling medium.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. A heating system for a pressure reducing evaporator, comprising: the system comprises a compressor (1), a heater (2), a condenser (3), an oil-gas separator (4), an oil condenser (5), an expansion valve (6), an electromagnetic valve (7), a sight glass (8) and an evaporator (9);
the output end of the tube pass of the heater (2) is connected with the low-pressure suction end (11) of the compressor (1), and the input end of the tube pass of the heater is connected with the output end of the tube pass of the condenser (3); an exhaust port (10) of the compressor (1) is connected with an inlet end of the oil-gas separator (4), an oil outlet of the oil-gas separator (4) is connected with an oil condenser (5), and a cold oil discharge end of the oil condenser (5) is connected with a cold oil recovery end of the compressor (1); the steam outlet of the oil-steam separator (4) is connected with the input end of the tube pass of the condenser (3); a steam outlet of the evaporator (9) is connected with the input end of the shell pass of the heater (2); and a material outlet and a material inlet of the evaporator (9) are respectively connected with two ends of the shell side of the condenser (3).
2. Heating system for a pressure-reducing evaporator according to claim 1, characterized in that an expansion valve (6) is provided between the condenser (3) and the heater (2).
3. Heating system for a pressure-reducing evaporator according to claim 1, characterized in that the output of the shell side of the heater (2) is connected to a condensate discharge port.
4. Heating system for pressure-reducing evaporators according to claim 1, characterized in that a solenoid valve (7) is provided on the pipe connecting between said oil condenser (5) and said oil outlet of said oil-vapor separator (4).
5. Heating system for pressure-reducing evaporators according to claim 1, characterized in that a sight glass (8) is provided on the pipe between said solenoid valve (7) and said oil condenser (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220198941.0U CN216934722U (en) | 2022-01-25 | 2022-01-25 | Heating system for pressure reduction evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220198941.0U CN216934722U (en) | 2022-01-25 | 2022-01-25 | Heating system for pressure reduction evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216934722U true CN216934722U (en) | 2022-07-12 |
Family
ID=82318061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220198941.0U Active CN216934722U (en) | 2022-01-25 | 2022-01-25 | Heating system for pressure reduction evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216934722U (en) |
-
2022
- 2022-01-25 CN CN202220198941.0U patent/CN216934722U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101650095B (en) | Multistage absorption refrigerating/heat pump unit | |
| CN210688806U (en) | Refrigeration device | |
| CN208975200U (en) | A kind of multi-stage condensing device for recovering oil and gas | |
| CN210764423U (en) | Heat pump vacuum waste liquid concentration treatment device | |
| CN104383792A (en) | Three-in-one plate exchange type refrigeration dryer and work method | |
| CN216934722U (en) | Heating system for pressure reduction evaporator | |
| CN107869857A (en) | One kind is based on the second kind absorption type mixing heat pump | |
| CN109442804B (en) | Double-stage compression heat pump circulation system for deep condensation of exhaust steam | |
| CN204107292U (en) | Three-in-one plate changes formula cooling driers | |
| CN102961882A (en) | Mixed type steam mechanical recompression evaporator | |
| CN202961914U (en) | Hybrid vapor mechanical recompression evaporator | |
| CN215842039U (en) | Low-temperature vacuum oil filter | |
| CN113418320B (en) | Device for raising low-temperature heat source temperature and application method thereof | |
| CN212339898U (en) | Material drying device based on transcritical carbon dioxide heat pump | |
| CN212253259U (en) | Compression condensing unit for automatically controlling defrosting system by utilizing hot fluorine gas | |
| CN209783045U (en) | high-efficiency energy-saving multi-loop evaporator | |
| CN211012099U (en) | High-pressure gas cold and hot water unit | |
| CN209378463U (en) | High efficient cryogenic energy saving evaporator | |
| CN209355535U (en) | A kind of refrigerating type low-temperature circulating device | |
| CN220572663U (en) | Energy-saving evaporation concentration device | |
| CN211885407U (en) | Novel self-source type traditional Chinese medicine liquid low-temperature evaporation and concentration system | |
| CN2901176Y (en) | Hot water two-stage multisection type lithium bromide absorptive water cooling unit | |
| CN110822762A (en) | Absorption type refrigeration working medium pair suitable for low-temperature refrigeration and refrigeration system and method | |
| CN215841643U (en) | Low-temperature vacuum evaporation equipment | |
| CN221014499U (en) | Flash evaporation concentration device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |