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Ice making system

An ice maker and compressor technology, applied in the directions of ice making, ice making, refrigerators, etc., can solve the problems affecting deicing, insufficient heating, and increased power consumption, so as to improve the utilization rate of electric energy and increase ice making. time, the effect of reducing the floor space

Active Publication Date: 2008-03-05
广州冰泉制冷设备有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For the current general-purpose ice machines, especially edible ice machines, there is no edible ice machine that can achieve large-scale production. At present, the largest daily production capacity is less than 1500 kg, which is mainly limited by the refrigeration technology. The main reason is It is impossible to realize automatic deicing
If recycling can be achieved, only 1 ton of circulating cooling water is needed to meet the technological requirements of the refrigeration system for the daily production of 810 kg of ice cubes, and the cooling water consumption rate is less than 3%.
[0004] From the above, when deicing is performed, the refrigerant only flows through the ice maker and compressor through the heat supply valve 14. Practice has proved that as the deicing continues, this cycle causes the temperature of the refrigerant to enter the compressor to increase after being compressed. The lower and lower, when it lasts for a certain period of time, the temperature of the refrigerant gas discharged from the compressor is very low, and even cannot reach the temperature required for deicing, which will easily cause insufficient heating, affect deicing, and make the deicing time very long. It takes 2 minutes to 3.5 minutes, which directly leads to increased power consumption
De-icing cannot be achieved if the ice maker is large, or if the ice cubes are thick
[0005] At the same time, this system can only meet the deicing requirements of two 450kg / 24-hour ice makers. If the number of ice makers increases or the specifications increase, normal deicing will not be achieved.
Therefore, this system limits the development of the ice machine to the direction of large-scale energy saving and water saving
[0006] In addition, the system has an obvious design error that does not meet the refrigeration technical specifications, that is, the high-temperature and high-pressure gas discharged from the compressor enters the ice maker through the heating valve to exchange heat with ice cubes, and becomes a gas-liquid mixture and enters the compressor.
When the liquid gradually accumulates inside the compressor, it is easy to cause liquid shock of the compressor, which is absolutely not allowed in refrigeration technical specifications, which will cause damage to the compressor

Method used

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Experimental program
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Embodiment 1

[0037] As shown in FIG. 2, the ice maker group 4 can be provided with three groups, and the pipeline from the condenser 2 is connected to the filter 11 and the sight glass 12 after passing through the gas-liquid separator 7, and then connected to the liquid supply valve 13. The pipeline after the liquid supply valve 13 is provided with three branch pipelines, which respectively pass through the throttle mechanism 3-1, the throttle mechanism 3-2, and the throttle mechanism 3-3 and the corresponding ice maker group 4-1. The 4-2 is connected to the 4-3 of the ice maker. The pipelines out of the ice maker of each group are provided with two branch pipes. One branch pipe passes through the air return valve 15-1 and the air return valve. 15-2 and the return valve 15-2 are converged in a main line, and then connected to the compressor 1 after passing through the gas-liquid separator 7, and the other branch line passes through the one-way valve 16-1 and the one-way valve 16-2 respectively...

Embodiment 2

[0040] As shown in Figure 3, the ice maker group is provided with three groups, namely ice maker group 4-1, ice maker group 4-2, and ice maker group 4-3. Each ice maker group can be set with three The pipeline from the ice maker and condenser 2 can be set with three branch pipelines after passing through the gas-liquid separator 2 and the filter 11 and the sight glass 12, which are connected with the liquid supply valve 13-1 and the liquid supply valve 13-2 respectively. Connect with the liquid supply valve 13-3, and then respectively pass through the throttle mechanism 3-1, the throttle mechanism 3-2 and the throttle mechanism 3-3 to the corresponding ice maker group 4-1 and ice maker group 4-2. Connected to the ice maker group 4-3; the pipeline from each ice maker group is provided with two branch pipelines, one branch pipeline passes through the return valve 15-1, the return valve 15-2 and the return valve respectively 15-3 converges in a main line, and then passes through the ...

Embodiment 3

[0043] As shown in Figures 2 to 3, the heat exchange media pipeline of the bypass heat exchanger 5 is connected to the cooling tower 18, the cooling tower 18 is connected to the condenser 2 pipeline, and the condenser 2 pipeline is connected to the bypass heat exchanger 5; The heat exchanger 5, the condenser 2 and the cooling tower 18 form a cooling water recycling system. A cooling water pump 17 is provided on the pipe between the cooling tower 18 and the condenser 2. Under the action of the cooling water pump 17, the cooling water enters the condenser 2 to exchange heat with the high-temperature and high-pressure gaseous refrigerant, changing the refrigerant from gas to liquid. The cooling water absorbs the heat of the refrigerant and then the temperature rises. The outflow is divided into two ways, one way flows through the bypass heat exchanger, and the bypass heat exchanger exchanges heat with the refrigerant, releases heat, reduces the temperature, and flows back to the cool...

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Abstract

An ice-making system includes compressor, condenser, throttling mechanism, ice-making device set, bypath heat exchanger, liquid supply valve, heat supply valve, air return valve and one-way valve. The compressor output pipeline divides into two branch pipelines, one branch is connected with the liquid supply valve via the condenser, and then is connected with the ice-maker set via the throttling mechanism; the other branch is connected with the ice making device via the heat supply valve; there are at least two group ice making device set. The pipeline from the ice making device set divides into two branches, one branch is connected with the air return valve, and then converged to a main pipeline and is connected with the compressor; the other branch is connected with the one-way valve, and then converged to a main bypath pipeline, and is connected with the bypath heat exchanger, then is connected with the compressor.

Description

Technical field [0001] The present invention relates to the field of refrigeration technology, and in particular to an ice making system that uses the exhaust heat of the compressor of the system to perform deicing. Background technique [0002] For the general-purpose ice machines, especially edible ice machines, there is no edible ice machine that can realize large-scale production. The current maximum daily production capacity is less than 1,500 kg. This is mainly limited by refrigeration technology. It is impossible to realize automatic de-icing. In addition, small ice machines have high energy consumption, and the cooling water is often unable to be recycled, which results in a serious waste of cooling water resources. Take an edible ice maker with a daily output of 810 kg as an example, the amount of water used for cooling is as much as 10 tons a day, and this water is often used for one-time cooling and then directly discharged as waste water. The cooling water consumption...

Claims

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Application Information

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IPC IPC(8): F25C1/00F25B5/02
Inventor 冯昊艳杨春林张绍志
Owner 广州冰泉制冷设备有限责任公司