CN111998452A - High-efficient dehumidifier of low temperature - Google Patents
High-efficient dehumidifier of low temperature Download PDFInfo
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- CN111998452A CN111998452A CN202011006666.XA CN202011006666A CN111998452A CN 111998452 A CN111998452 A CN 111998452A CN 202011006666 A CN202011006666 A CN 202011006666A CN 111998452 A CN111998452 A CN 111998452A
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- condenser
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1405—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification in which the humidity of the air is exclusively affected by contact with the evaporator of a closed-circuit cooling system or heat pump circuit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/43—Defrosting; Preventing freezing of indoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Drying Of Gases (AREA)
Abstract
The invention discloses a low-temperature high-efficiency dehumidifier which comprises a compressor, a first condenser, a second condenser and an evaporator, wherein the outlet of the compressor is divided into two paths and is respectively connected with the inlet of the first condenser and the inlet of the second condenser, the outlet of the first condenser and the outlet of the second condenser are converged into one path through a pipeline and then are connected with the inlet of the evaporator, the outlet of the evaporator is connected with the inlet of the compressor, refrigerant in the compressor respectively enters the first condenser and the second condenser after being compressed, then enters the evaporator after being mixed, and returns to the compressor again after absorbing heat in the evaporator, so that a dehumidification cycle is completed. The invention can ensure higher dehumidification efficiency within the temperature range (5-40 ℃); energy conservation and consumption reduction, avoids energy waste on defrosting work, and has high dehumidification efficiency.
Description
Technical Field
The invention relates to the technical field of dehumidifiers, in particular to a low-temperature efficient dehumidifier.
Background
The working environment temperature of a common refrigeration type dehumidifier is 5-40 ℃, the surface of the dehumidifier is easy to frost when the temperature is lower than 10 ℃, and therefore the dehumidification efficiency of the dehumidifier is greatly reduced. However, in some special working environments (such as in a cavern and a coastal region in winter), the indoor environment temperature is generally lower than 10 ℃, the relative humidity is more than or equal to 90%, and in the existing common dehumidifier, because the surface of the evaporator is easy to frost, the dehumidifier needs to frequently defrost the surface of the evaporator, the lower the temperature is, the shorter the dehumidification time is, the more frequent the defrosting is, and thus, the dehumidification efficiency is low, and the effect is poor. Therefore, the dehumidifier can be normally used in a low-temperature and high-humidity environment, and has a good dehumidification effect.
Disclosure of Invention
The invention aims to make up for the defects of the prior art and provides a low-temperature high-efficiency dehumidifier to solve the problems of energy waste and low dehumidification efficiency in a low-temperature environment of a dehumidification device in the prior art.
The invention is realized by the following technical scheme:
the utility model provides a high-efficient dehumidifier of low temperature, includes compressor, a condenser, No. two condensers and evaporimeter, the export of compressor divide into two the tunnel, respectively with a condenser import and No. two condenser access connections, No. one condenser export and No. two condenser exports converge for one kind through the pipeline, again with the evaporimeter import through being connected, evaporimeter export and compressor access connection, refrigerant compression in the compressor gets into a condenser and No. two condensers respectively, gets into the evaporimeter after mixing again, gets back to the compressor once more after absorbing the heat in the evaporimeter, accomplishes the dehumidification circulation.
The first condenser, the second condenser and the evaporator are arranged side by side and are provided with evaporation fans, the evaporation fans enable humid air to flow through the surface of the evaporator to be cooled and dehumidified, and the dehumidified air is heated through the second condenser and is discharged indoors.
The first condenser and the second condenser are communicated with the evaporator in sequence after being converged and are connected with the liquid storage device, the filter and the throttling device. An accumulator is arranged at an outlet of the first condenser and the second condenser after the first condenser and the second condenser are combined, and liquid refrigerant in the refrigerating system can be stored and supplied.
And a temperature sensor is arranged on the surface of the evaporator and used for detecting the surface temperature of the evaporator.
A proportional flow control valve is installed in front of the first condenser, the proportional flow control valve takes the surface temperature of the evaporator as feedback data, and the opening degree of the proportional flow control valve is controlled based on the feedback data.
One-way valves are arranged behind the first condenser and the second condenser to prevent the refrigerant from flowing backwards.
The first condenser and the second condenser are arranged in the dehumidifier, 1 condenser is used for dehumidification, and 1 condenser is used for improving the indoor air inlet temperature, so that the dehumidifier can be used at low temperature, and higher dehumidification efficiency is ensured. The dehumidifier internally comprises a compressor, a first condenser, a temperature sensing device, an evaporator, a one-way valve, a throttling device, a filter, a liquid storage device, a second condenser, a fan, a proportional flow control valve and other devices which are communicated through a pipeline. The compressor absorbs low-temperature low-pressure refrigerant gas from the evaporator, compresses the low-temperature low-pressure refrigerant gas into low-temperature high-pressure gas, enters the first condenser and the second condenser, emits heat, is throttled by the filter and the throttling device, enters the evaporator, absorbs air heat, evaporates into gas, and then enters the compressor through a pipeline, so that a dehumidification cycle is completed.
The evaporator fan cools the wet air flowing through the surface of the evaporator, and the surface temperature of the evaporator is lower than the dew point temperature of the air, so that the water vapor of the air is condensed into water and discharged out of the machine; the dehumidified air is heated by the second condenser and discharged to the indoor, so that the refrigeration and dehumidification cycle is continuously carried out, and the moisture in the humid air is continuously condensed, thereby achieving the purpose of dehumidification.
The proportional flow control valve can adjust the opening degree through the surface temperature of the evaporator, and adjust the flow of the refrigerant entering the first condenser.
When the ambient temperature is low (5-18 ℃), the surface of the evaporator frosts due to low temperature in the operation process of the dehumidifier, at the moment, a signal is sent out through a temperature sensor arranged on the evaporator, at the moment, a proportional flow regulating valve is opened, high-temperature refrigerant is conveyed into a first condenser, the surface temperature of the first condenser is increased, indoor cold air is heated through the first condenser and then passes through the evaporator, the surface temperature of the evaporator is increased, and the frosting on the surface of the evaporator is avoided. Therefore, the dehumidifier can ensure higher dehumidification efficiency under the condition of lower temperature (5-18 ℃).
The invention has the advantages that: the invention can ensure higher dehumidification efficiency within the temperature range (5-40 ℃); energy conservation and consumption reduction, avoids energy waste on defrosting work, and has high dehumidification efficiency.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, a low-temperature high-efficiency dehumidifier includes a compressor 1, a first condenser 2, a second condenser 9, and an evaporator 4, wherein a refrigerant in the compressor 1 is compressed, then enters the first condenser 2 and the second condenser 9, then enters the evaporator 4 through diffusion, and returns to the compressor 1 again after absorbing heat in the evaporator 4, thereby completing a dehumidification cycle.
The outlet of the compressor 1 is divided into two paths which are respectively connected with the inlet of the first condenser 2 and the inlet of the second condenser 9 through pipelines, the outlet of the first condenser 2 and the outlet of the second condenser 9 converge into one path through pipelines, and then are connected with the inlet of the evaporator 4 through pipelines, and the outlet of the evaporator 4 is connected with the inlet of the compressor 1 through pipelines.
The first condenser 2, the second condenser 9 and the evaporator 4 are arranged side by side, and are provided with an evaporation fan 10, the evaporation fan 10 enables humid air to flow through the surface of the evaporator 4 to be cooled and dehumidified, and the dehumidified air is heated through the second condenser 9 and is discharged indoors.
The first condenser 2 and the second condenser 9 are communicated with the evaporator 4 after being converged and are connected with a liquid storage device 8, a filter and a throttling device in sequence.
The surface of the evaporator 4 is provided with a temperature sensor 3 for detecting the surface temperature of the evaporator 4.
An accumulator 8 is provided at an outlet of the first condenser 2 after the second condenser 9 is merged, and can store and supply the liquid refrigerant in the refrigeration system.
The first condenser 2 is provided with a proportional flow control valve 11 in front, and the proportional flow control valve 11 controls the opening degree of the proportional flow control valve 11 based on feedback data with the surface temperature of the evaporator 4 as feedback data.
A check valve 5 is arranged behind the first condenser 2 and the second condenser 9 to prevent the refrigerant from flowing backwards.
2 condensers are arranged in the dehumidifier, the second condenser is used for dehumidification, the first condenser is used for improving the indoor air inlet temperature, the dehumidifier can be used at a low temperature, and high dehumidification efficiency is guaranteed. The dehumidifier internally comprises a compressor 1, a first condenser 2, a temperature sensing device 3, an evaporator 4, a one-way valve 5, a throttling device 6, a filter 7, a liquid storage device 8, a second condenser 9, an evaporation fan 10, a proportional flow regulating valve 11 and other devices which are communicated through pipelines. The compressor 1 absorbs low-temperature low-pressure refrigerant gas from the evaporator 4, compresses the low-temperature low-pressure refrigerant gas into low-temperature high-pressure gas, enters the first condenser 2 and the second condenser 9, emits heat, is throttled by the filter 7 and the throttling device 8, enters the evaporator 4, absorbs air heat, evaporates into gas, and then enters the compressor 1 through a pipeline, so that a dehumidification cycle is completed.
The evaporation fan 10 cools the wet air by flowing over the surface of the evaporator 4, and since the surface temperature of the evaporator 4 is lower than the dew point temperature of the air, the water vapor of the air is condensed into water and discharged out of the machine; the dehumidified air is heated by the second condenser 9 and discharged to the indoor, so that the refrigeration and dehumidification cycle is continuously carried out, and the moisture in the humid air is continuously condensed, thereby achieving the purpose of dehumidification.
The proportional flow control valve 11 can adjust the opening degree by the surface temperature of the evaporator 4, and adjust the flow rate of the refrigerant passing through the first condenser 2.
When the ambient temperature is low (5-18 ℃), the surface of the evaporator 4 can be frosted due to low temperature in the running process of the dehumidifier, at the moment, a signal is sent out by the temperature sensor 3 arranged on the evaporator 4, the proportional flow regulating valve 11 is opened, the high-temperature refrigerant is conveyed into the first condenser 2, the surface temperature of the first condenser 2 is increased, indoor cold air is heated by the first condenser 2 and then passes through the evaporator 4, the surface temperature of the evaporator 4 is increased, and frosting on the surface of the evaporator 4 is avoided. Therefore, the dehumidifier can ensure higher dehumidification efficiency under the condition of lower temperature (5-18 ℃).
Claims (6)
1. The utility model provides a high-efficient dehumidifier of low temperature which characterized in that: the dehumidification system comprises a compressor, a condenser, a second condenser and an evaporator, wherein an outlet of the compressor is divided into two paths and is respectively connected with an inlet of the first condenser and an inlet of the second condenser, an outlet of the first condenser and an outlet of the second condenser are converged into one path through a pipeline and then connected with an inlet of the evaporator through a connection, an outlet of the evaporator is connected with an inlet of the compressor, a refrigerant in the compressor is compressed and then respectively enters the first condenser and the second condenser, and then enters the evaporator after being mixed, and the refrigerant returns to the compressor again after absorbing heat in the evaporator to complete dehumidification circulation.
2. The low-temperature high-efficiency dehumidifier according to claim 1, wherein: the first condenser, the second condenser and the evaporator are arranged side by side and are provided with evaporation fans, the evaporation fans enable humid air to flow through the surface of the evaporator to be cooled and dehumidified, and the dehumidified air is heated through the second condenser and is discharged indoors.
3. The low-temperature high-efficiency dehumidifier according to claim 1, wherein: the first condenser and the second condenser are communicated with the evaporator in sequence after being converged and are connected with the liquid storage device, the filter and the throttling device.
4. The low-temperature high-efficiency dehumidifier according to claim 1, wherein: and a temperature sensor is arranged on the surface of the evaporator.
5. The low-temperature high-efficiency dehumidifier according to claim 1, wherein: a proportional flow control valve is installed in front of the first condenser, the proportional flow control valve takes the surface temperature of the evaporator as feedback data, and the opening degree of the proportional flow control valve is controlled based on the feedback data.
6. The low-temperature high-efficiency dehumidifier according to claim 1, wherein: and one-way valves are arranged behind the first condenser and the second condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011006666.XA CN111998452A (en) | 2020-09-23 | 2020-09-23 | High-efficient dehumidifier of low temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011006666.XA CN111998452A (en) | 2020-09-23 | 2020-09-23 | High-efficient dehumidifier of low temperature |
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| Publication Number | Publication Date |
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| CN111998452A true CN111998452A (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011006666.XA Pending CN111998452A (en) | 2020-09-23 | 2020-09-23 | High-efficient dehumidifier of low temperature |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023184989A1 (en) * | 2022-03-31 | 2023-10-05 | 海尔(深圳)研发有限责任公司 | Device for dehumidification |
-
2020
- 2020-09-23 CN CN202011006666.XA patent/CN111998452A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023184989A1 (en) * | 2022-03-31 | 2023-10-05 | 海尔(深圳)研发有限责任公司 | Device for dehumidification |
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