KR20120001861A - How to detecting refrigerant leaks - Google Patents

How to detecting refrigerant leaks Download PDF

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Publication number
KR20120001861A
KR20120001861A KR1020100062462A KR20100062462A KR20120001861A KR 20120001861 A KR20120001861 A KR 20120001861A KR 1020100062462 A KR1020100062462 A KR 1020100062462A KR 20100062462 A KR20100062462 A KR 20100062462A KR 20120001861 A KR20120001861 A KR 20120001861A
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KR
South Korea
Prior art keywords
temperature
leak
refrigerant
refrigerant leak
room
Prior art date
Application number
KR1020100062462A
Other languages
Korean (ko)
Inventor
김해성
Original Assignee
위니아만도 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 위니아만도 주식회사 filed Critical 위니아만도 주식회사
Priority to KR1020100062462A priority Critical patent/KR20120001861A/en
Publication of KR20120001861A publication Critical patent/KR20120001861A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/002—Defroster control
    • F25D21/004—Control mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/22—Preventing, detecting or repairing leaks of refrigeration fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2500/00—Problems to be solved
    • F25D2500/04—Calculation of parameters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2600/00—Control issues
    • F25D2600/02—Timing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Defrosting Systems (AREA)

Abstract

The present invention relates to a refrigerant leak detection method, and in particular, characterized in that the refrigerant leak (leak) is determined by the high temperature sensor in the intercooled room, the step of measuring the first temperature that is the internal temperature of the intercooled room after defrosting completion And measuring a second temperature, which is the internal temperature of the intercooled room after a predetermined time, and determining whether the leak is caused by the first temperature and the second temperature. will be.

Description

How to detect refrigerant leaks

The present invention relates to a method for detecting a refrigerant leak by a high temperature sensor in an intercooled room.

The conventional refrigerant leak detection method is a refrigerant leak detection method used in a direct-to-cold mixed refrigerator of two rooms or more, and detects a refrigerant leak using a high temperature sensor in the direct-cooling room.

As illustrated in FIG. 1, when the product power is turned on, the first temperature T 1 ′, which is a high internal temperature of the direct cooling room, is measured.

After the operation of the compressor, a second temperature T 2 ′, which is the internal temperature of the direct cooling room after a specific time has elapsed, is measured.

When the value obtained by subtracting the second temperature T 2 ′ from the first temperature T 1 ′ is less than or equal to a predetermined value A (S50), it is determined that the refrigerant leaks (S70).

The display shows the refrigerant leak error code.

In the conventional refrigerant leak detection method, a leak occurring during use by detecting only once at an initial time is found after food damage, causing a problem of inconvenience to consumers.

In addition, if the refrigerant leak (leak) is fine, after a few days or months after use by the consumer does not fall in the high temperature occurs a problem that is found after the food is deteriorated.

After the product is turned on, when foods with a temperature higher than the high temperature are put into the refrigerator, there is a limit in the freezing capacity of the product. Even if it is not a leak occurs a problem that can be determined as a refrigerant leak (leak).

In addition, since the internal temperature sensor of the direct cooling room is slow in response to product operation, a problem arises in that a refrigerant leak determination error is generated.

The present invention has been made to solve the above-mentioned problem, and finds a phenomenon quickly even when the refrigerant leak is minute.

Refrigerant leak detection method of the present invention for achieving the above object, the power is turned on and when the defrost is completed, by measuring the temperature in the high temperature to detect the refrigerant (leak), the temperature difference in the intercooled room, not the temperature difference of the direct cooling room A refrigerant leak detection method is characterized by determining a refrigerant leak.

Refrigerant leak detection method of the present invention, after the completion of the defrosting step of measuring the first temperature which is the internal temperature of the intercooled room, measuring a second temperature of the internal temperature of the intercooled room after a predetermined time, and the first temperature And determining whether to leak based on the second temperature.

And determining a leak when the value obtained by subtracting the second temperature from the first temperature is equal to or less than a predetermined value A.

The method may further include determining a leak when the value obtained by subtracting the second temperature from the first temperature is equal to or less than a predetermined value A is repeated N times.

And when the product power is turned on, if the value obtained by subtracting the second temperature from the first temperature is equal to or less than a predetermined value (A) is repeated N times, the method includes determining a leak.

According to the refrigerant leak detection method of the present invention as described above, there are the following effects.

By determining the refrigerant leak with the high temperature sensor of the intercooled room, it is possible to quickly measure the change in the high temperature of the intercooled room.

When the value obtained by subtracting the second temperature from the first temperature of the intercooled room is smaller than the predetermined value A, it is determined that the refrigerant leaks after N repetitions, thereby reducing the refrigerant leak determination error.

In addition, the refrigerant leak (leak) is often determined, the refrigerant leak (leak) can be determined even during use to reduce the inconvenience of consumers due to food damage.

1 is a flow chart according to a conventional refrigerant leak detection method.
2 is a flow chart according to a refrigerant leak detection method according to a preferred embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

For reference, among the configurations of the present invention to be described below, the same configuration as the prior art will be referred to the above-described prior art, and a detailed description thereof will be omitted.

2 is a flowchart illustrating a refrigerant leak detection method according to a preferred embodiment of the present invention.

The refrigerant leak detection method of the present invention is a refrigerant leak detection method used in two or more rooms of a direct-to-cold mixed refrigerator, and detects a refrigerant leak using a high temperature sensor in an intercooled room.

The high temperature sensor of the intercooled room is directly attached to the surface of the evaporator of the intercooled room, so the reaction speed is high according to the operation of the product.

In the refrigerant leak detection method of the present invention, as shown in Figure 2, when the power is turned on and the defrost completion time by measuring the internal temperature to detect the refrigerant leak (leak), the temperature difference of the intercooled room, not the temperature difference of the direct cooling room A coolant leak is determined by (T 1 -T 2 ).

Hereinafter, the operation of the present embodiment having the above-described configuration will be described.

When the defrost is completed, the first temperature T 1 , which is the internal temperature of the intercooled room, is measured.

After the compressor is started and a predetermined time has elapsed, the second temperature T 2 , which is the internal temperature of the intercooled room, is measured.

It is determined whether the value (T 1 -T 2 ) obtained by subtracting the second temperature (T 2 ) from the first temperature (T 1 ) is equal to or less than a predetermined value (A).

When the value (T 1 -T 2 ) obtained by subtracting the second temperature (T 2 ) from the first temperature (T 1 ) is equal to or less than a predetermined value (A) is repeated N times (S7), the refrigerant leaks. (S9)

In addition, even when the first temperature (T 1) and around the said second temperature (T 2) obtained by subtracting the value (T 1 -T 2) is a constant value (A), less the width of the change in the refrigerant leak (leak Can be judged.

The display shows the refrigerant leak error code.

This refrigerant leak detection method has an advantage that the leak can be detected at all times because the defrosting is performed periodically.

Further, even when the product in the high-power-on mass of the high temperature food than ON time, inside temperature, obtained by subtracting the first temperature (T 1) and the second temperature (T 2) in the) value (T 1 -T 2 Since the leak is determined in a case where N) is equal to or less than a predetermined value A (S7), the possibility of a refrigerant leak determination error can be minimized.

As described above, although described with reference to a preferred embodiment of the present invention, those skilled in the art various modifications or variations of the present invention without departing from the spirit and scope of the invention described in the claims below Can be carried out.

As described above, the refrigerant leak detection method according to the present invention is particularly suitable for a refrigerator and a kimchi refrigerator for quickly determining a refrigerant leak.

T 1 ′: first temperature in the direct cooling room T 2 ′: second temperature in the direct cooling room
T 1 : first temperature of the intercooled room T 2 : second temperature of the intercooled room

Claims (5)

Refrigerant leak, characterized in that the refrigerant is detected by measuring the internal temperature at the time of completion of defrosting, and the refrigerant leak is determined by the temperature difference of the intercooled room, not the temperature difference of the direct cooling room. leak) Detection method. Measuring a first temperature which is a high internal temperature of the intercooled room after completion of defrosting;
Measuring a second temperature which is a high internal temperature of the intercooled room after a predetermined time elapses;
And determining whether to leak based on the first temperature and the second temperature. The method according to claim 2,
And determining a leak when the value obtained by subtracting the second temperature from the first temperature is equal to or less than a predetermined value A. A refrigerant leak detection method comprising a. The method according to claim 3,
And determining a leak when the value obtained by subtracting the second temperature from the first temperature is equal to or less than a predetermined value (A) is repeated N times. Refrigerant leak detection method comprising a. The method according to claim 2 or 3,
Determining the leak (leak) when the value of the first temperature subtracted the second temperature from the first temperature is less than a predetermined value (A) is repeated N times when the product power is ON; Way.
KR1020100062462A 2010-06-30 2010-06-30 How to detecting refrigerant leaks KR20120001861A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100062462A KR20120001861A (en) 2010-06-30 2010-06-30 How to detecting refrigerant leaks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100062462A KR20120001861A (en) 2010-06-30 2010-06-30 How to detecting refrigerant leaks

Publications (1)

Publication Number Publication Date
KR20120001861A true KR20120001861A (en) 2012-01-05

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KR1020100062462A KR20120001861A (en) 2010-06-30 2010-06-30 How to detecting refrigerant leaks

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113587540A (en) * 2021-08-09 2021-11-02 元气森林(北京)食品科技集团有限公司 Method, equipment, medium and product for detecting faults of temperature control cabinet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113587540A (en) * 2021-08-09 2021-11-02 元气森林(北京)食品科技集团有限公司 Method, equipment, medium and product for detecting faults of temperature control cabinet

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