Frost prevention control system

A control system and anti-frost technology, applied in defrosting, household refrigeration devices, coolers, etc., can solve problems such as frosting or fogging, affecting the continuous and effective operation of automation devices, and adverse effects on the quality of stored items, so as to improve intelligence effect

Pending Publication Date: 2022-03-08
深圳市爱康生物科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, if the relevant testing experiments cannot be carried out immediately after blood samples are collected, the general practice is to store the blood samples in a refrigerator (or freezer) at a temperature of 2-8°C. Manually take out the refrigerator (or freezer) for experiments. If it is necessary to realize the assembly line operation of blood samples, ordinary refrigerators (or freezers) cannot realize automatic storage and retrieval, which obviously cannot meet the requirements.
[0003] With the development of science and technology, automated cold storage is gradually being introduced to the market, and for automated cold storage, two important problems are faced, namely: 1. Due to the temperature fluctuations in the cold storage, the freeze-thaw process of the stored items in a solid state, especially It is the relatively large fluctuation caused by the opening and closing of the cold storage door during the process of item access, and the quality of the stored items in the cold storage is easily affected by obvious adverse effects; 2. In the area where the internal low temperature environment of the cold storage is combined with the external relatively high temperature environment, it is easy to Cold and heat exchange occurs, causing frost or fog condensation, which affects the continuous and effective operation of the automation device. For example, the automation device at the insulation door of the automatic cold storage is most prone to frost or fog, which makes the corresponding automation device invalid.
In the prior art, as in patents CN206019134U and CN106152679A, air curtains are used at the cold storage door to prevent external air from entering the cold storage. However, the design of the air curtains will allow some air to enter the cold storage. There is still a lot of room for improvement in terms of adjustment methods, control methods, and intelligence of the control system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Such as figure 1 As shown, a frost control system includes a cold storage, a terminal display, a controller, a differential pressure sensor, a pressure sensor group, a control valve group and at least one gas cylinder, and the pressure sensor group includes at least one gas cylinder that matches the number of gas cylinders A pressure sensor, the control valve group includes at least one control valve matching the number of gas cylinders, the pressure sensor group, control valve group and gas cylinders are all arranged inside the cold storage, the gas cylinders are connected to the control valve, The control valve is connected to the controller, the gas cylinder is connected to the pressure sensor, the pressure sensor is connected to the controller, the cold storage is connected to the differential pressure sensor, and the differential pressure sensor is connected to the The controller is connected, and the terminal display is connected to the controller, wherein:

[00...

Embodiment 2

[0063] The number of gas cylinders is N, wherein N is a positive integer greater than 1, and the N gas cylinders are set to be the first gas cylinder to the Nth gas cylinder respectively, and the set pressure sensor group includes pressure sensors corresponding to the N gas cylinders. From the first pressure sensor to the Nth pressure sensor, the control valve group includes the control valves corresponding to the N gas cylinders as the first control valve to the Nth control valve;

[0064] The first to Nth pressure sensors are respectively used to monitor the pressure of the first to Nth gas cylinders and feed back to the control system, and the control system receives the current pressure of the first to Nth gas cylinders. Pressure value;

[0065] The control system arranges the set form according to the received current pressure values ​​of the N gas cylinders, and the set form arrangement can be arranged in ascending order or descending order of the pressure values;

[00...

Embodiment 3

[0071] In this embodiment, when the controller receives that the current pressure value of the priority compensation gas cylinder reaches the second set value, the controller performs setting according to the received current pressure value of the N gas cylinders. Arrangement in a certain form, and reset the priority compensation cylinders in the current state.

[0072] It should be noted that, in this technical solution, when the controller receives that the current pressure value of the priority compensation gas cylinder reaches the second set value, the controller generates a third instruction, and sends a message to the terminal display Send the third command to remind the user that the gas cylinder is insufficient and needs to be replaced, indicating that the priority compensation gas cylinder can no longer be used to replenish and deliver gas to the cold storage. The current pressure value of the gas cylinder is arranged again in a new setting form (the meaning of the se...

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Abstract

The invention discloses a frost prevention control system which comprises a refrigeration house, a terminal displayer, a controller, a differential pressure sensor, a pressure sensor set, a control valve set and at least one gas cylinder, the pressure sensor set comprises at least one pressure sensor matched with the gas cylinders in number, and the control valve set comprises at least one control valve matched with the gas cylinders in number. According to the technical scheme, the low-temperature dry gas stored in the gas cylinder and the working temperature in the refrigeration house are always balanced and tend to be consistent, so that the low-temperature dry gas released by the gas cylinder does not influence normal work of the refrigeration house or the low-temperature dry gas does not influence the normal work of the refrigeration house to the minimum extent; the residual available release time of the gas cylinders, the gas cylinders with the abnormal control valves, the current pressure values of the gas cylinders and other information are sent to the terminal display system through the controller, alarming is conducted in a distinguishing mode according to the abnormal state information of the gas cylinders, intellectualization is greatly improved, and a user can distinguish the states of the gas cylinders in time and carry out replacement or inspection on the gas cylinders in a planned mode.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to an anti-frost control system. Background technique [0002] In the medical device industry, relevant policies and laws require blood samples to be processed as soon as possible after collection and stored at a specified temperature of 2-8°C. At present, if the relevant testing experiments cannot be carried out immediately after blood samples are collected, the general practice is to store the blood samples in a refrigerator (or freezer) at a temperature of 2-8°C. Manually take it out from the refrigerator (or freezer) for experiments. If it is necessary to realize the assembly line operation of blood samples, ordinary refrigerators (or freezers) cannot realize automatic storage and retrieval, which obviously cannot meet the requirements. [0003] With the development of science and technology, automated cold storage is gradually being introduced to the market, and for auto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D13/00F25D17/06F25D21/00F25D21/04F25D29/00
CPCF25D13/00F25D17/06F25D21/004F25D21/04F25D29/005F25D29/008F25D2317/04111F25D2600/06F25D2400/36
Inventor 胡贵宾付道莹董江超龚妍妍陈贤志张传国李运奇刘付旭光
Owner 深圳市爱康生物科技股份有限公司
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