CN111420422A - Phase-change cold-storage oil gas condensation recovery device - Google Patents
Phase-change cold-storage oil gas condensation recovery device Download PDFInfo
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- CN111420422A CN111420422A CN202010322390.XA CN202010322390A CN111420422A CN 111420422 A CN111420422 A CN 111420422A CN 202010322390 A CN202010322390 A CN 202010322390A CN 111420422 A CN111420422 A CN 111420422A
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- oil gas
- phase change
- evaporator
- compressor
- condensation recovery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0033—Other features
- B01D5/0039—Recuperation of heat, e.g. use of heat pump(s), compression
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
Abstract
The invention discloses a phase change cold accumulation oil gas condensation recovery device which comprises an evaporator, wherein a phase change medium layer is arranged on the outer layer of the evaporator, a heat insulation layer is further arranged on the outer layer of the phase change medium layer, an oil gas outlet is formed in the upper end of the evaporator, a compressor, a condenser and a throttling device are sequentially connected to one side of the oil gas outlet, and an oil gas inlet and a liquid discharge port are respectively formed in the lower end of the evaporator. The invention has the beneficial effects that: the phase-changeable energy storage technology is added into the refrigerating device, and compared with the traditional refrigerating device adopting the start-stop control of the compressor, the stop time of the compressor can be greatly prolonged; in the heat exchange process, the phase change medium in the heat exchanger is subjected to isothermal phase change, the operation temperature is stable, and the fluctuation is small; the energy density in unit volume is high, and the volume of the equipment can be greatly reduced; the service life of the compressor is prolonged, and the reliability is high.
Description
Technical Field
The invention relates to the technical field of oil gas condensation recovery devices, in particular to a phase change cold accumulation oil gas condensation recovery device.
Background
The oil gas condensation recovery device is mainly used for tertiary recovery of a gas station, and has the principle that the oil gas is condensed into liquid gasoline by utilizing a low-temperature evaporator and oil gas heat exchange, so that the direct emission of the oil gas is avoided, and meanwhile, the oil gas condensation recovery device has the advantages of environmental protection and good economic benefit.
The oil gas recovery methods commonly used in the market are adsorption method, absorption method and condensation method. The adsorption method is to physically adsorb the oil gas by an adsorbent such as activated carbon and then to decompress or heat for desorption. The method has the advantages of high treatment efficiency and low emission concentration; the disadvantages are that the activated carbon periodically fails and secondary pollution is formed.
The absorption method is to utilize lean oil as absorbent and spray tower to contact and absorb oil gas through solubility difference. The method has the advantages of simple process and low cost; the disadvantages are low recovery rate, large occupied area and high energy consumption.
The condensation method is to create a low-temperature environment through a refrigeration technology, and some hydrocarbon substances in the oil gas reach a saturated state in the low-temperature environment and are condensed into liquid for separation. The method has the advantages of simple process, good economic benefit, good safety and high automation degree; the disadvantage is the high investment.
Disclosure of Invention
The invention aims to provide a phase change cold accumulation oil gas condensation recovery device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a phase transition cold-storage oil gas condensation recovery unit, includes the evaporimeter, the evaporimeter skin is equipped with the phase transition dielectric layer, the phase transition dielectric layer skin still is equipped with the heat preservation, the evaporimeter upper end is equipped with the oil gas export, oil gas export one side has connected gradually compressor, condenser and throttling arrangement, the evaporimeter lower extreme is equipped with oil gas import and leakage fluid dram respectively.
Preferably, the compressor, the condenser and the throttling device are respectively connected with the upper end and the lower end of the evaporator through pipelines, and the compressor, the condenser, the throttling device and the evaporator form a loop structure.
Preferably, the oil gas inlet arranged at the upper end of the evaporator is of a large channel structure and is connected with the upper end of the evaporator through a pipeline.
Preferably, the oil gas inlet is also provided with a liquid storage tank and a liquid discharge port.
Preferably, the phase change medium layer is arranged in a sandwich structure between the outside of the evaporator and the heat insulation layer, and an expansion space for the phase change medium is reserved in the sandwich structure.
Preferably, the heat insulation layer is a polyurethane foaming heat insulation layer.
Preferably, the phase-change medium layer is further provided with a thermometer, a temperature measuring end of the thermometer is arranged in the phase-change medium layer, and an observation position of the thermometer is located outside the evaporator.
Advantageous effects
Compared with the traditional refrigerating device adopting the start-stop control of the compressor, the phase-change cold-storage oil gas condensation recovery device provided by the invention has the advantages that the stop time of the compressor can be greatly prolonged; in the heat exchange process, the phase change medium in the heat exchanger is subjected to isothermal phase change, the operation temperature is stable, and the fluctuation is small; the energy density in unit volume is high, and the volume of the equipment can be greatly reduced; the service life of the compressor is prolonged, and the reliability is high.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Reference numerals
1-evaporator, 2-phase change medium, 3-insulating layer, 4-thermometer, 5-oil gas outlet, 6-oil gas inlet, 7-liquid outlet, 8-compressor, 9-condenser and 10-throttling device.
Detailed Description
The following are specific examples of the present invention and further describe the technical solutions of the present invention, but the present invention is not limited to these examples.
Examples
As shown in fig. 1, the phase change cold accumulation oil gas condensation recovery device comprises an evaporator 1, wherein a phase change medium layer 2 is arranged on the outer layer of the evaporator 1, a heat preservation layer 3 is further arranged on the outer layer of the phase change medium layer 2, an oil gas outlet 5 is arranged at the upper end of the evaporator 1, a compressor 8, a condenser 9 and a throttling device 10 are sequentially connected to one side of the oil gas outlet 5, and an oil gas inlet 6 and a liquid discharge port 7 are respectively arranged at the lower end of the evaporator 1.
Preferably, the compressor 8, the condenser 9 and the throttling device 10 are respectively connected with the upper end and the lower end of the evaporator 1 through pipelines, and the compressor 8, the condenser 9, the throttling device 10 and the evaporator 1 form a loop structure.
Preferably, the oil gas inlet 6 arranged at the upper end of the evaporator 1 is of a large channel structure and is connected with the upper end of the evaporator 1 through a pipeline.
Preferably, the oil gas inlet 6 is also provided with a liquid storage tank and a liquid discharge port.
Preferably, the phase change medium layer 2 is arranged in a sandwich structure between the outside of the evaporator 1 and the heat insulation layer 3, and an expansion space for the phase change medium layer 2 is reserved in the sandwich structure.
Preferably, the heat insulation layer 3 is a polyurethane foam heat insulation layer.
Preferably, the phase change medium layer 2 is further provided with a thermometer 4, a temperature measuring end of the thermometer 4 is arranged in the phase change medium layer 2, and an observation position of the thermometer 4 is located outside the evaporator 1.
When the unit operates, the compressor starts to operate, and when the medium temperature reaches a set target temperature, the phase-change material is changed from a liquid phase to a solid phase; when the refrigerator receives an oil gas connection signal, oil gas passes through an internal channel of the low-temperature heat exchanger to complete cooling and condensation, and a medium in the interlayer absorbs heat and is dissolved into liquid through isothermal phase change; after the phase change medium completes all phase changes, the temperature of the medium exceeds the melting point temperature and rises, at the moment, the compressor starts refrigeration work, the refrigeration is continued, the phase change material is gradually changed into solid, and after all or part of the phase changes are completed and the set shutdown temperature is reached, the compressor stops working. The above steps are repeated.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the content of the present invention within the scope of the protection of the present invention.
Claims (7)
1. The utility model provides a phase transition cold-storage oil gas condensation recovery unit, includes evaporimeter (1), its characterized in that: the evaporator is characterized in that a phase change medium layer (2) is arranged on the outer layer of the evaporator (1), a heat preservation layer (3) is further arranged on the outer layer of the phase change medium layer (2), an oil gas outlet (5) is arranged at the upper end of the evaporator (1), a compressor (8), a condenser (9) and a throttling device (10) are sequentially connected to one side of the oil gas outlet (5), and an oil gas inlet (6) and a liquid discharge port (7) are respectively arranged at the lower end of the evaporator (1).
2. The phase change cold accumulation oil gas condensation recovery device according to claim 1, characterized in that: the compressor (8), the condenser (9) and the throttling device (10) are respectively connected with the upper end and the lower end of the evaporator (1) through pipelines, and the compressor (8), the condenser (9), the throttling device (10) and the evaporator (1) form a loop structure.
3. The phase change cold accumulation oil gas condensation recovery device according to claim 1, characterized in that: the oil gas inlet (6) arranged at the upper end of the evaporator (1) is of a large channel structure and is connected with the upper end of the evaporator (1) through a pipeline.
4. The phase change cold accumulation oil gas condensation recovery device according to claim 3, characterized in that: the oil gas inlet (6) is also provided with a liquid storage tank and a liquid discharge port.
5. The phase change cold accumulation oil gas condensation recovery device according to claim 1, characterized in that: the phase change medium layer (2) is arranged in a sandwich structure between the outside of the evaporator (1) and the heat preservation layer (3), and an expansion space for the phase change medium (2) is reserved in the sandwich structure.
6. The phase change cold accumulation oil gas condensation recovery device according to claim 1, characterized in that: the heat-insulating layer (3) is a polyurethane foaming heat-insulating layer.
7. The phase change cold accumulation oil gas condensation recovery device according to claim 1, characterized in that: the phase change medium layer (2) is further provided with a thermometer (4), the temperature measuring end of the thermometer (4) is arranged in the phase change medium layer (2), and the observation position of the thermometer (4) is located outside the evaporator (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010322390.XA CN111420422A (en) | 2020-04-22 | 2020-04-22 | Phase-change cold-storage oil gas condensation recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010322390.XA CN111420422A (en) | 2020-04-22 | 2020-04-22 | Phase-change cold-storage oil gas condensation recovery device |
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| Publication Number | Publication Date |
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| CN111420422A true CN111420422A (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010322390.XA Pending CN111420422A (en) | 2020-04-22 | 2020-04-22 | Phase-change cold-storage oil gas condensation recovery device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114383336A (en) * | 2021-12-31 | 2022-04-22 | 南京久鼎环境科技股份有限公司 | CO (carbon monoxide)2Shutdown pressure maintaining device of refrigeration system |
-
2020
- 2020-04-22 CN CN202010322390.XA patent/CN111420422A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114383336A (en) * | 2021-12-31 | 2022-04-22 | 南京久鼎环境科技股份有限公司 | CO (carbon monoxide)2Shutdown pressure maintaining device of refrigeration system |
| CN114383336B (en) * | 2021-12-31 | 2023-08-08 | 南京久鼎环境科技股份有限公司 | CO (carbon monoxide) 2 Shutdown pressure maintaining device for refrigeration system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Room 3 and 4, 228 Wulian Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Applicant after: Suzhou Aode high end equipment Co.,Ltd. Address before: Room 3 and 4, 228 Wulian Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Applicant before: SUZHOU AODE MACHINERY Co.,Ltd. |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |