CN212657922U - Hot fluorination defrosting control device for refrigeration house - Google Patents
Hot fluorination defrosting control device for refrigeration house Download PDFInfo
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- CN212657922U CN212657922U CN202021495378.0U CN202021495378U CN212657922U CN 212657922 U CN212657922 U CN 212657922U CN 202021495378 U CN202021495378 U CN 202021495378U CN 212657922 U CN212657922 U CN 212657922U
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Abstract
The utility model provides a cold storage hot fluorination frost control device, relating to the technical field of refrigeration equipment, comprising a compressor, a condenser and an evaporator; a first electromagnetic valve is arranged between the condenser and the evaporator; a second electromagnetic valve and a third electromagnetic valve which are connected in parallel and have different flow rates are arranged between the compressor and the evaporator; the inlet and the outlet of the evaporator are respectively provided with a temperature sensor, and the temperature sensors are respectively connected with the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve in a controlling manner. The utility model discloses utilize the earlier switching cooperation of two solenoid valves of a big little flux, earlier little flux lets in high-pressure gas, and large-traffic high-pressure gas that lets in makes it reach the defrosting temperature fast again when making near the fluorine trachea of compressor of pressure in the evaporimeter. When high-temperature high-pressure gas is introduced at a large flow rate, the pressures at two ends are close, so that the shaking generated in the air circulation process is greatly reduced, and the phenomenon of pipe cracking is avoided.
Description
Technical Field
The utility model relates to a refrigeration plant technical field especially relates to a freezer hot fluorination frost controlling means.
Background
The refrigeration house is often arranged by a plurality of groups of evaporators to form a refrigeration evaporation system of the whole refrigeration house, and as the refrigeration time in the refrigeration house is prolonged, the frost on the evaporators is thicker and thicker, so that the refrigeration effect of the evaporators is influenced, the refrigeration effect of the evaporators is reduced, the refrigeration efficiency of the evaporators is reduced, and the evaporators need to be defrosted in time.
Thermal fluorine defrosting is widely applied to the refrigeration industry and the ice-making industry because of energy conservation, science and safety. The application of the hot fluorine defrosting technology improves the production efficiency, saves the labor, reduces the energy consumption and effectively improves the social productivity. The hot fluorine defrosting is that high-temperature and high-pressure exhaust is directly driven into the cold discharge through an electromagnetic valve or a conversion device to make the cold discharge generate heat, and a frost layer is firstly melted at the joint of the frost layer and the cold discharge and then automatically falls off. However, when defrosting begins, a large amount of high-temperature and high-pressure gas is introduced once, so that the part of the pipeline connected with the outside and the evaporator shakes seriously, and the pipeline shattering accident is easy to happen.
SUMMERY OF THE UTILITY MODEL
To the not enough that exists among the prior art, the utility model provides a freezer hot fluorination frost controlling means, it has solved the defrosting that exists among the prior art when beginning, lets in a large amount of high temperature high pressure gas and can lead to the part of the outside and evaporimeter of pipe connection to shake badly once, takes place the problem of pipeline shatter accident easily.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a control device for hot fluorination frost of a refrigeration house comprises a compressor, a condenser and an evaporator;
the compressor is provided with two outlets, one outlet is connected with the condenser, the condenser is connected with the inlet of the evaporator through a liquid supply pipe, and a first electromagnetic valve is arranged between the condenser and the evaporator;
the other outlet of the compressor is connected with the inlet of the evaporator through a fluorine gas pipe, a second electromagnetic valve and a third electromagnetic valve are arranged between the compressor and the evaporator and are connected in parallel, and the flow rate of the third electromagnetic valve is smaller than that of the second electromagnetic valve;
the outlet of the evaporator is connected with the compressor through a steam return pipe, the inlet and the outlet of the evaporator are respectively provided with a temperature sensor, and the temperature sensors are respectively connected with the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve in a control mode.
Compared with the prior art, the utility model discloses following beneficial effect has:
two electromagnetic valves with large flow and small flow are utilized to be opened and closed in sequence, high-pressure gas is introduced at small flow, and when the pressure in the evaporator is close to a fluorine gas pipe near a compressor, high-pressure gas is introduced at large flow to quickly reach defrosting temperature. When high-temperature high-pressure gas is introduced at a large flow rate, the pressures at two ends are close, so that the shaking generated in the air circulation process is greatly reduced, and the phenomenon of pipe cracking is avoided.
Preferably, an expansion valve is further included, the expansion valve being installed between the first solenoid valve and the inlet of the evaporator.
Preferably, a water pan is arranged below the evaporator, and the fluorine gas pipe is coiled in the water pan.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.
In the above drawings: 1. a compressor; 2. a condenser; 3. an evaporator; 4. a first solenoid valve; 5. a second solenoid valve; 6. a third electromagnetic valve; 7. a temperature sensor; 8. an expansion valve; 9. a water pan; 10. a fluorine gas pipe; 11. a steam return pipe; 12. a liquid supply tube.
Detailed Description
In order to make the technical means, creation features, achievement purposes and actions of the present invention clearer and easier to understand, the following technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.
As shown in fig. 1, an embodiment of the present invention provides a device for controlling thermal fluorination of a refrigeration storage, including a compressor 1, a condenser 2 and an evaporator 3; the compressor 1 is provided with two outlets, one of the outlets is connected with the condenser 2, the condenser 2 is connected with the inlet of the evaporator 3 through a liquid supply pipe 12, and a first electromagnetic valve 4 is arranged between the condenser 2 and the evaporator 3; the other outlet of the compressor 1 is connected with the inlet of the evaporator 3 through a fluorine gas pipe 10, a second electromagnetic valve 5 and a third electromagnetic valve 6 are arranged between the compressor 1 and the evaporator 3, the second electromagnetic valve 5 and the third electromagnetic valve 6 are connected in parallel, and the flow rate of the third electromagnetic valve 6 is smaller than that of the second electromagnetic valve 5; the outlet of the evaporator 3 is connected with the compressor 1 through a steam return pipe 11, the inlet and the outlet of the evaporator 3 are respectively provided with a temperature sensor 7, and the temperature sensors 7 are respectively in control connection with the first electromagnetic valve 4, the second electromagnetic valve 5 and the third electromagnetic valve 6. During refrigeration, the first electromagnetic valve 4 is opened, the second electromagnetic valve 5 and the third electromagnetic valve 6 are closed, high-temperature and high-pressure steam generated by the compressor 1 is firstly introduced into the condenser 2, releases heat to a medium in the condenser 2, is condensed into high-pressure liquid, passes through the throttling valve, and then enters the evaporator 3 to absorb heat and vaporize for refrigeration; the temperature sensors 7 arranged at the inlet and the outlet of the evaporator 3 monitor the temperature at two positions, the temperature value is transmitted to the processor, the temperature value is compared and calculated, whether defrosting is needed or not is judged, when defrosting is needed, the processor firstly controls the first electromagnetic valve 4 and the second electromagnetic valve 5 to be closed, the third electromagnetic valve 6 is opened, the air flow quantity at the position of the third electromagnetic valve 6 is very small, high-temperature and high-pressure gas generated by the compressor 1 is slowly injected into the evaporator 3, the pressure in the evaporator 3 is stably increased, when the pressure in the evaporator 3 is close to the pressure in the fluorine gas pipe 10, the second electromagnetic valve 5 is opened again, when the high-temperature and high-pressure gas in the compressor 1 enters the evaporator 3 through the fluorine gas pipe 10 at a large flow rate, because the pressure difference distance between the two positions is not large, the pipeline cannot shake, and pipeline breakage is avoided.
As shown in fig. 1, further includes an expansion valve 8, and the expansion valve 8 is installed between the first solenoid valve 4 and the inlet of the evaporator 3. When refrigerating, the high-pressure liquid refrigerant is throttled and decompressed, and the amount of the liquid refrigerant entering the evaporator 3 is adjusted and controlled to adapt to the change of the refrigerating load, so that the liquid impact phenomenon of the compressor 1 is prevented.
As shown in fig. 1, a water receiving tray 9 is provided below the evaporator 3, and a fluorine gas pipe 10 is wound in the water receiving tray 9. During defrosting, hot air enters the evaporator 3 through the fluorine air pipe 10, so that frost in the evaporator 3 is quickly melted and drips into the water pan 9, the coiled fluorine air pipe 10 is arranged in the water pan 9, and at the moment, the hot air in the fluorine air pipe 10 heats defrosting water in the water pan 9, so that the defrosting water cannot be frozen in the drain pipe and blocked, and the defrosting water is ensured to smoothly flow out of the refrigeration house.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (3)
1. The utility model provides a freezer hot fluorination frost controlling means which characterized in that: comprises a compressor (1), a condenser (2) and an evaporator (3);
the compressor (1) is provided with two outlets, one outlet is connected with the condenser (2), the condenser (2) is connected with an inlet of the evaporator (3) through a liquid supply pipe (12), and a first electromagnetic valve (4) is arranged between the condenser (2) and the evaporator (3);
the other outlet of the compressor (1) is connected with the inlet of the evaporator (3) through a fluorine gas pipe (10), a second electromagnetic valve (5) and a third electromagnetic valve (6) are arranged between the compressor (1) and the evaporator (3), the second electromagnetic valve (5) and the third electromagnetic valve (6) are connected in parallel, and the flow volume of the third electromagnetic valve (6) is smaller than that of the second electromagnetic valve (5);
the outlet of the evaporator (3) is connected with the compressor (1) through a steam return pipe (11), the inlet and the outlet of the evaporator (3) are respectively provided with a temperature sensor (7), and the temperature sensors (7) are respectively in control connection with the first electromagnetic valve (4), the second electromagnetic valve (5) and the third electromagnetic valve (6).
2. The freezer hot defrosting control device of claim 1, characterized in that: and the expansion valve (8) is arranged between the first solenoid valve (4) and the inlet of the evaporator (3).
3. The freezer hot defrosting control device of claim 1, characterized in that: a water pan (9) is arranged below the evaporator (3), and a fluorine gas pipe (10) is coiled in the water pan (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021495378.0U CN212657922U (en) | 2020-07-27 | 2020-07-27 | Hot fluorination defrosting control device for refrigeration house |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021495378.0U CN212657922U (en) | 2020-07-27 | 2020-07-27 | Hot fluorination defrosting control device for refrigeration house |
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| Publication Number | Publication Date |
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| CN212657922U true CN212657922U (en) | 2021-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021495378.0U Active CN212657922U (en) | 2020-07-27 | 2020-07-27 | Hot fluorination defrosting control device for refrigeration house |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113142910A (en) * | 2021-05-09 | 2021-07-23 | 江苏星星冷链科技有限公司 | High-efficient steam defrosting freezing show cupboard |
-
2020
- 2020-07-27 CN CN202021495378.0U patent/CN212657922U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113142910A (en) * | 2021-05-09 | 2021-07-23 | 江苏星星冷链科技有限公司 | High-efficient steam defrosting freezing show cupboard |
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