CN216204429U - Refrigeration dehumidification system - Google Patents
Refrigeration dehumidification system Download PDFInfo
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- CN216204429U CN216204429U CN202122551794.9U CN202122551794U CN216204429U CN 216204429 U CN216204429 U CN 216204429U CN 202122551794 U CN202122551794 U CN 202122551794U CN 216204429 U CN216204429 U CN 216204429U
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- condenser
- way valve
- evaporator
- dehumidification
- evaporation
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Abstract
The utility model discloses a refrigeration and dehumidification system which comprises a fan, a compressor, a main evaporator, an evaporator/condenser, a main condenser, a three-way valve, a first one-way valve, a second one-way valve, a first throttling and pressure reducing device and an electric regulating valve. The utility model can realize various dehumidification modes including temperature rise dehumidification, temperature reduction dehumidification and constant temperature dehumidification with temperature being adjusted freely by arranging the evaporator/condenser capable of switching multiple working modes and the related three-way valve, the electric flow regulating valve, the pressure reduction device and the like.
Description
Technical Field
The utility model relates to the technical field of gas treatment, in particular to a freezing and dehumidifying system.
Background
The refrigeration dehumidifier can be divided into temperature raising property, constant temperature property and temperature reduction property according to functions; in practical use of the dehumidifier, the three functions are often required to be switched to each other, so that the temperature of the gas can be controlled while dehumidification is ensured. In order to realize the temperature of the dehumidifier to the gas, a common refrigeration and dehumidification system design comprises 2 condensers, one condenser is arranged behind an evaporator to reheat the dehumidified gas, the other external condenser is independently used as a condenser, the 2 condensers are switched and operated according to needs during operation, and the functions of temperature rise dehumidification and temperature reduction dehumidification are respectively realized.
SUMMERY OF THE UTILITY MODEL
The utility model aims to make up the defects of the prior art, and provides a refrigeration dehumidification system which can realize the mutual switching operation of a plurality of dehumidification modes, including a cooling dehumidification mode, a heating dehumidification mode and a constant temperature dehumidification mode. The utility model sets the evaporator/condenser at the back of the main evaporator, wherein the evaporator/condenser can switch the working mode through the three-way valve, and can be respectively switched to the evaporator and the condenser, when the evaporator/condenser is switched to the evaporator, the refrigeration dehumidifying system operates in the cooling dehumidifying mode, at this time, the evaporator/condenser and the main evaporator share the role of the evaporator, and the two evaporators work at the same time to generate more dehumidifying amount; when the evaporation/condenser is switched to a condenser mode and an electric regulating valve on an inlet pipeline of the main condenser is in a closed state, the main condenser does not run at the moment, and the refrigeration dehumidification system runs in a temperature-raising dehumidification mode at the moment; when the evaporation/condenser is switched to the condenser mode and the electric adjusting valve on the inlet pipeline of the main condenser is in an opening state, the main evaporator and the evaporation/condenser are in an operating state, the refrigeration dehumidification system operates in a near constant temperature dehumidification mode at the moment, the heat dissipation capacity distribution on 2 condensers can be adjusted by adjusting the flow of the refrigerant controlled by the exhaust electric adjusting valve on the inlet pipeline of the main condenser, and the heat dissipation capacity of the evaporation/condenser in the condenser mode is matched with the cold capacity of the main evaporator until the inlet air temperature of the refrigeration dehumidification system is the same as or close to the outlet air temperature.
The utility model is realized by the following technical scheme:
a refrigeration dehumidification system comprises a fan, a compressor, a main evaporator, an evaporation/condenser, a main condenser, a three-way valve, a first one-way valve, a second one-way valve, a first throttling depressurization device and an electric regulating valve, wherein the main evaporator and the evaporation/condenser are arranged in parallel; an exhaust port of the compressor is connected to a main condenser, an outlet of the main condenser is connected with an inlet of a first throttling and pressure reducing device, an outlet of the first throttling and pressure reducing device is respectively connected with inlets of a first one-way valve and a second one-way valve, and outlets of the first one-way valve and the second one-way valve are respectively communicated to the main evaporator and the evaporation/condenser; the outlet of the primary evaporator is connected to the return air port of the compressor.
The function of the evaporator/condenser is switched between the evaporator and the condenser through the three-way valve and the electric regulating valve.
And a connecting pipeline is arranged between the outlets of the first one-way valve and the second one-way valve, a second throttling and pressure reducing device is arranged on the connecting pipeline, and the outlet and the inlet of the second throttling and pressure reducing device are respectively connected with the main evaporator and the evaporation/condenser.
And an electric exhaust adjusting valve is arranged on a pipeline between the compressor and the main condenser.
Through the control of the evaporation/condenser, the three-way regulating valve and the electric regulating valve, the evaporation/condenser can be switched to various operation modes, including an evaporator mode, a condenser mode and a non-operation mode;
when the evaporator/condenser is in the evaporator operation mode, the utility model operates in a cooling and dehumidifying mode, which is also equivalent to an air-conditioning refrigeration mode, namely, the utility model cools and dehumidifies the treated gas flow.
When the evaporation/condenser operates in a non-operation mode, namely the electric adjusting valve connected with the three-way valve is in a closed state and the exhaust electric adjusting valve in front of the main condenser is in an open state, the evaporation/condenser also adopts a cooling and dehumidifying mode, but the evaporation/condenser is in a non-circulation state due to the closed pipeline, only the main evaporator is in an operation state, and in the mode, the area of the evaporator is smaller than that of the double evaporators, so that the gas dew-point temperature corresponding to the evaporator is lower, and the evaporation/condenser is suitable for dehumidifying the gas flow with lower relative humidity.
When the evaporation/condenser is in the condenser running mode and the exhaust electric adjusting valve in front of the main condenser is in a closed state, the refrigerant circulates between the main evaporator and the evaporation/condenser, and the utility model is in a heating and dehumidifying mode because the heat of the condenser of the refrigeration cycle is larger than the sensible heat refrigerating capacity of the evaporator.
When the evaporation/condenser is in the condenser operation mode, and the exhaust electric adjusting valve in front of the main condenser is in an adjustable opening state, at the moment, the refrigerant circulates among the main evaporator, the evaporation/condenser and the main condenser, the flow of the refrigerant flowing through the main condenser is controlled by adjusting the exhaust electric adjusting valve, the exhaust amount of the compressor flowing through the evaporation/condenser in the condenser operation mode is also adjusted, and therefore the evaporation/condenser is adjusted to be used as the heat dissipation amount of the condenser mode, and constant-temperature dehumidification with adjustable temperature is achieved.
In addition, when the working mode of the evaporation/condenser is switched from the condenser to the evaporator mode, the electric regulating valve connected with the three-way valve can be closed firstly, so that the evaporation/condenser is in a non-circulating state, at the moment, the refrigerant in the evaporation/condenser flows through the second throttling pressure reduction device to enter the main evaporator until the pressure of the refrigerant in the evaporation/condenser is equal to or close to the pressure of the refrigerant in the main evaporator, at the moment, the electric regulating valve connected with the three-way valve can be opened again, the three-way valve is switched to be connected with a suction port of the compressor, and the possibility of damage caused by that the refrigerant suddenly switches to be low pressure due to the fact that the pressure in the evaporation/condenser is reduced is avoided by switching the three-way valve.
The utility model realizes the switching of various working modes of the refrigeration dehumidifier, including temperature rise dehumidification, temperature reduction dehumidification and constant temperature dehumidification, by arranging the evaporation/condenser and the corresponding three-way valve, electric regulating valve, one-way valve and the like, thereby greatly perfecting the functions of refrigeration dehumidification.
The utility model has the advantages that:
1. the refrigeration dehumidification system can comprehensively realize various dehumidification modes, including temperature rise dehumidification, temperature reduction dehumidification and constant temperature dehumidification.
2. Under the condition of cooling and dehumidification, the utility model is equal to a refrigeration air-conditioning mode, and the evaporation area can be adjusted by 2 grades, so that the sensible heat ratio of cooling and dehumidification can be adjusted, and more requirements of users can be met.
3. The temperature is adjustable in the constant temperature mode, and the temperature fluctuation is small.
4. The mutual switching of various dehumidification modes is smooth, and the compressor does not need to be stopped when the modes are switched.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, a refrigeration and dehumidification system includes a fan 11, a compressor 1, a main evaporator 4, an evaporator/condenser 5, a main condenser 2, a first throttling and pressure reducing device 3, a second throttling and pressure reducing device 6, a three-way valve 7, a first one-way valve 9, a second one-way valve 10, an electric regulating valve 8, an exhaust electric regulating valve 12, and the like.
The processed gas flows through the main evaporator 4 and the evaporator/condenser 5 in turn under the driving of the fan 11, wherein the evaporator/condenser 5 is connected with the electric regulating valve 8 and the first interface 7a of the three-way valve 7 through pipelines, and the second interface 7b and the third interface 7c of the three-way valve are respectively connected with the air return port and the exhaust port of the compressor 1. The exhaust port of the compressor 1 is connected to the main condenser 2, and another exhaust electric regulating valve 12 is arranged on a pipeline between the compressor 1 and the main condenser 2. The outlet of the main condenser 2 is connected with the inlet of a first throttling and pressure reducing device 3, the outlet of the first throttling and pressure reducing device 3 is connected with the inlets of a first one-way valve 9 and a second one-way valve 10, the outlets of the two one-way valves are respectively communicated to the main evaporator 4 and the evaporation/condenser 5, a connecting pipeline is arranged between the outlets of the two one-way valves, a second throttling and pressure reducing device 6 is arranged on the connecting pipeline, and the outlet and the inlet of the second throttling and pressure reducing device 6 are respectively connected with the main evaporator 4 and the evaporation/condenser 5; the outlet of the primary evaporator 4 is connected to the return port of the compressor 1.
The function of the evaporation/condenser 5 is switched between the evaporator and the condenser, the switching mode is that the three-way valve 7 and the electric adjusting valve 8 connected with the three-way valve 7 are used, when the electromagnetic valve 8 is in an opening state and the connection mode of the three-way valve 7 is that the first interface 7a is connected with the second interface 7b, the evaporation/condenser 5 and the electric adjusting valve 8 are communicated with the return air port of the compressor 1 through the three-way valve 7, the evaporation/condenser 5 is in a low-pressure evaporator mode because the evaporation/condenser 5 is communicated with the return air port of the compressor 1, at the moment, because 2 evaporators operate together, the cooling area is larger, and the dehumidification capacity is larger than that of the main evaporator which operates alone. In addition, if a lower evaporation temperature is required, the electric regulating valve 8 connected with the three-way valve 7 can be closed, at this time, the evaporation/condenser 5 is not circulated with refrigerant and is in a non-operation state, and only the main evaporator 4 cools and dehumidifies the air flow, so that the evaporation temperature is lower. The design according to the utility model thus allows the evaporation area and the evaporation temperature to be adjusted as required in the supercooling mode, for example, in the case of low humidity, a lower evaporator dew point temperature is required for dehumidification.
When the three-way valve 7 and the electric adjusting valve 8 connected with the three-way valve are in an opening state and the three-way valve 7 is communicated with the exhaust port of the compressor 1, the working state of the evaporation/condenser 5 is a condenser due to the exhaust communication with the compressor 1, if the exhaust electric adjusting valve 12 in front of the main condenser 2 is closed, all exhaust of the compressor 1 enters the evaporation/condenser 5, and then the condensed liquid refrigerant flows through the second throttling and pressure reducing device 6 to enter the main evaporator 4 and then returns to the compressor 1. In the mode, the heat dissipating capacity of the condenser of the refrigerating system is larger than the refrigerating capacity of the evaporator, so that the refrigerating and dehumidifying system is in the temperature-rising dehumidifying mode at the moment.
When the three-way valve 7 and the electric adjusting valve 8 connected with the three-way valve are in an opening state and the three-way valve 7 is communicated with the exhaust port of the compressor 1, due to the exhaust communication with the compressor 1, the evaporator/condenser 5 is operated in the condenser state, i.e. the exhaust electric regulating valve 12 in front of the main condenser 2 is opened, part of the exhaust gas of the compressor 1 enters said evaporator/condenser 5 and, by means of the adjustment of the exhaust gas electric regulating valve 12 in front of the main condenser 2, the heat dissipating capacity of the two condensers can be adjusted and distributed, so that the heat dissipating capacity of the evaporator/condenser 5 in the working mode of the condensers is matched with the sensible heat refrigerating capacity of the main evaporator 4, therefore, the refrigeration dehumidification system is in a constant temperature dehumidification mode, and the temperature can be adjusted while dehumidification is performed by adjusting the opening degree of the exhaust electric control valve 12.
In addition, when the working mode of the evaporation/condenser 5 is switched from the condenser mode to the evaporator mode, the electric regulating valve 8 connected with the three-way valve 7 can be closed firstly, so that the evaporation/condenser 5 is in a non-circulation state, at the moment, the refrigerant in the evaporation/condenser flows through the second throttling pressure reduction device 6 to enter the main evaporator 4 until the refrigerant pressure in the evaporation/condenser 5 is equal to or close to the refrigerant pressure in the main evaporator 4, at the moment, the electric regulating valve 8 connected with the three-way valve 7 can be opened again, and the three-way valve 7 is switched to be connected with the air suction port of the compressor, and because the pressure in the evaporation/condenser 5 is reduced, the three-way valve 7 is switched, at the moment, the damage caused by that the refrigerant is suddenly switched to be low pressure due to a large amount of flowing towards the compressor 1 can not be caused by the fact that the high pressure is switched to be suddenly switched to be low pressure.
The utility model can be used for not only a refrigeration dehumidification system, but also an air conditioning system and other devices with the same structure, adopts a pipeline system with the same principle and is also protected by the utility model.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (4)
1. A refrigeration dehumidification system, comprising: the evaporator/condenser is sequentially connected with the electric regulating valve and a first interface of the three-way valve through pipelines, and a second interface and a third interface of the three-way valve are respectively connected with a gas return port and an exhaust port of the compressor; an exhaust port of the compressor is connected to a main condenser, an outlet of the main condenser is connected with an inlet of a first throttling and pressure reducing device, an outlet of the first throttling and pressure reducing device is respectively connected with inlets of a first one-way valve and a second one-way valve, and outlets of the first one-way valve and the second one-way valve are respectively communicated to the main evaporator and the evaporation/condenser; the outlet of the primary evaporator is connected to the return air port of the compressor.
2. A refrigeration dehumidification system according to claim 1, wherein: the function of the evaporator/condenser is switched between the evaporator and the condenser through the three-way valve and the electric regulating valve.
3. A refrigeration dehumidification system according to claim 1, wherein: and a connecting pipeline is arranged between the outlets of the first one-way valve and the second one-way valve, a second throttling and pressure reducing device is arranged on the connecting pipeline, and the outlet and the inlet of the second throttling and pressure reducing device are respectively connected with the main evaporator and the evaporation/condenser.
4. A refrigeration dehumidification system according to claim 1, wherein: and an electric exhaust adjusting valve is arranged on a pipeline between the compressor and the main condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122551794.9U CN216204429U (en) | 2021-10-22 | 2021-10-22 | Refrigeration dehumidification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122551794.9U CN216204429U (en) | 2021-10-22 | 2021-10-22 | Refrigeration dehumidification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216204429U true CN216204429U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122551794.9U Active CN216204429U (en) | 2021-10-22 | 2021-10-22 | Refrigeration dehumidification system |
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| Country | Link |
|---|---|
| CN (1) | CN216204429U (en) |
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2021
- 2021-10-22 CN CN202122551794.9U patent/CN216204429U/en active Active
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