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Method and device for maintaining constant temperature

A technology for maintaining constant temperature and equipment. It is used in lighting and heating equipment, cooling fluid circulation devices, household appliances, etc. It can solve the problems of short heat preservation time and uncontrollable external ambient temperature, and achieve extended heat preservation time, improve temperature regulation efficiency, The effect of low energy consumption and temperature control

Pending Publication Date: 2018-07-31
上海安鲜达物流科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, this method is suitable for large-scale goods transportation, but the disadvantage is that special refrigerated vehicles are required, ice plates and other refrigerants need to be pre-cooled, and the external environment temperature is uncontrollable, and the heat preservation time is short

Method used

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  • Method and device for maintaining constant temperature

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specific Embodiment 1

[0037] This embodiment discloses a more preferred embodiment of the method for maintaining a constant temperature, including steps:

[0038] S10: keeping the dry ice in an insulated bucket;

[0039] S20: Detect the external ambient temperature of the thermal insulation bucket;

[0040] S30: When the external ambient temperature of the thermal insulation bucket exceeds the preset temperature range, the thermal insulation bucket is opened, and the low-temperature carbon dioxide gas obtained by the heat absorption and sublimation of the dry ice in the thermal insulation bucket is transported to a heat-collecting structure, and the low-temperature carbon dioxide gas is absorbed by the heat-collecting structure heat in the external environment;

[0041] S40: after a preset time after opening the thermal insulation bucket, detect the external ambient temperature of the thermal insulation bucket again;

[0042] S50: When the external ambient temperature of the thermal insulation bu...

specific Embodiment 2

[0048] Specific embodiment 2 discloses another embodiment of the method for maintaining a constant temperature, the steps of which are basically the same as those of specific embodiment 1, the only difference being that the low-temperature carbon dioxide gas obtained by the endothermic sublimation of dry ice in the heat preservation bucket in step S50 The discharge methods are different. In step S50 of this embodiment, the low-temperature carbon dioxide gas obtained by the heat absorption and sublimation of the dry ice in the heat preservation bucket first passes through the heat collection structure, and then is discharged into the external environment through the rapid discharge port, that is to say , in this embodiment, the quick discharge port communicates with the heat preservation bucket through the heat collecting structure, of course, the fast discharge port can also be regarded as an exhaust port of the heat collecting structure.

specific Embodiment 3

[0049] Embodiment 3 discloses another embodiment of the method for maintaining a constant temperature, the steps of which are basically the same as in Embodiment 1, the only difference being that the method for maintaining a constant temperature in this embodiment also includes steps before step S30: S80: When the external ambient temperature exceeds the preset temperature range and the exceeded temperature value is greater than the preset exceeding range, open the thermal insulation bucket, and the low-temperature carbon dioxide gas obtained by the heat absorption and sublimation of the dry ice in the thermal insulation bucket is directly discharged into the external environment of the thermal insulation bucket. That is to say, when it is detected that the external environment temperature is too high, the low-temperature carbon dioxide gas does not absorb external heat through the heat collecting structure, but is directly discharged into the external environment to absorb heat...

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Abstract

The invention discloses a method and device for maintaining constant temperature. The device for maintaining the constant temperature comprises an insulation barrel, a heat collection structure, a first electronic control valve, a temperature sensor and a controller. The insulation barrel is used for storing dry ice; the heat collection structure communicates with the insulation barrel through anair pipeline; the first electronic control valve is arranged on the air pipeline between the insulation barrel and the heat collection structure and is used for opening and closing the air pipeline; the temperature sensor is arranged outside the insulation barrel and used for detecting the external environment temperature of the insulation barrel; the controller is electrically connected with thefirst electronic control valve and the temperature sensor, when the external environment temperature detected by the temperature sensor exceeds a preset temperature range, the first electronic controlvalve is controlled by the controller to open. The method and device for maintaining the constant temperature is less in method steps, convenient to operate, simple in device structure and low in production cost, and can make full use of the dry ice and keep the external environment at the constant temperature for a long time.

Description

technical field [0001] The invention relates to the technical field of improving the temperature adjustment method and the structure improvement of the temperature adjustment device, in particular to a method and equipment for maintaining a constant temperature. Background technique [0002] The current transportation method used in cold chain transportation is to use ice plates, dry ice and other refrigerants in the incubator to reduce the temperature in the incubator, and then put the incubator in a special refrigerated truck for transportation to ensure the temperature in the incubator during the transportation stage. The temperature is within the required range. At present, this method is suitable for the stage of large-scale goods transportation, but the disadvantage is that a special refrigerated vehicle is required, and refrigerants such as ice plates need to be pre-cooled, and the external environment temperature is uncontrollable and the heat preservation time is sh...

Claims

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Application Information

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IPC IPC(8): F25D29/00F25D3/12
CPCF25D3/125F25D29/00F25D2700/14
Inventor 车鑫
Owner 上海安鲜达物流科技有限公司
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