CN113883804A - Control method for alternate use of forced precooling device and natural cold accumulation device - Google Patents
Control method for alternate use of forced precooling device and natural cold accumulation device Download PDFInfo
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- CN113883804A CN113883804A CN202111283579.3A CN202111283579A CN113883804A CN 113883804 A CN113883804 A CN 113883804A CN 202111283579 A CN202111283579 A CN 202111283579A CN 113883804 A CN113883804 A CN 113883804A
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- drainage tube
- natural cold
- electromagnetic valve
- valve
- branch
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000009825 accumulation Methods 0.000 title claims description 13
- 230000006835 compression Effects 0.000 claims abstract description 18
- 238000007906 compression Methods 0.000 claims abstract description 18
- 230000008676 import Effects 0.000 claims 4
- 230000006378 damage Effects 0.000 abstract description 3
- 235000012055 fruits and vegetables Nutrition 0.000 description 7
- 239000003507 refrigerant Substances 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000002595 cold damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000009920 food preservation Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- F25D16/00—Devices using a combination of a cooling mode associated with refrigerating machinery with a cooling mode not associated with refrigerating machinery
-
- 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
- F25D29/005—Mounting of control devices
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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)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a control method for alternately using a forced precooling device and a natural cold storage device, which comprises a compression condensing unit, the forced precooling device, the natural cold storage device and a controller, wherein the output end of the compression condensing unit is fixedly connected with a drainage tube, the drainage tube is fixedly connected with a first branch drainage tube and a second branch drainage tube through a three-way joint, the first branch drainage tube is fixedly connected with the inlet of the forced precooling device, and the second branch drainage tube is fixedly connected with the inlet of the natural cold storage device; stop valves are arranged in the front and at the back of the control system, so that a circuit can be manually controlled, and system damage caused by failure of the electromagnetic valve is avoided.
Description
Technical Field
The invention relates to the technical field of food preservation, in particular to a control method for alternately using a forced precooling device and a natural cold storage device.
Background
Pre-cooling refers to a process of rapidly reducing the temperature of the food from an initial temperature (about 30 ℃) to a required end temperature (0-15 ℃). I.e. the cooling before refrigerated transport and high temperature refrigeration and the rapid cooling process before rapid freezing are collectively referred to as pre-cooling. In order to prolong the shelf life of fruits and vegetables, reduce the dry consumption and various losses in circulation and enable consumers to obtain high-freshness clean fruits and vegetables, a series of post-harvest processing treatments such as selection, peeling, cleaning, pre-cooling, water filtration, packaging and the like must be carried out in factories, so that a pre-cooling process is more indispensable.
When the temperature of the cold cabin is reduced to a proper temperature, the forced precooling device is continuously used for carrying out cold insulation on the cabin, so that the dry loss of fruits and vegetables can be caused, the phase of stored products is reduced, and cold damage is caused. Aiming at the defects of the forced precooling device, the invention provides a control method for alternately using the forced precooling device and the natural cold storage device.
Disclosure of Invention
The invention aims to provide a control method for alternately using a forced precooling device and a natural cold accumulation device so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a control method for alternately using a forced precooling device and a natural cold storage device comprises a compression condensing unit, the forced precooling device, the natural cold storage device and a controller, wherein the output end of the compression condensing unit is fixedly connected with a drainage tube, the drainage tube is fixedly connected with a first branch drainage tube and a second branch drainage tube through a three-way joint, the first branch drainage tube is fixedly connected with the inlet of the forced precooling device, the second branch drainage tube is fixedly connected with the inlet of the natural cold storage device, the input end of the compression condensing unit is fixedly connected with a return tube, the other end of the return tube is fixedly connected with the outlet of the natural cold storage device, the outlet of the forced precooling device is fixedly connected with a branch return tube, the branch return tube is communicated with the return tube through a three-way joint, the drainage tube is provided with an expansion valve, the first branch drainage tube is sequentially provided with a first stop valve and a first electromagnetic valve at the front end of the inlet of the forced precooling device, the second branch drainage tube is sequentially provided with a second stop valve and a second electromagnetic valve at the front end of the inlet of the natural cold accumulation device, the branch return tube is sequentially provided with a third stop valve and a third electromagnetic valve at the front end of the outlet of the forced precooling device, and the return tube is sequentially provided with a fourth stop valve and a fourth electromagnetic valve at the front end of the outlet of the natural cold accumulation device.
As a further scheme of the invention: the first stop valve, the second stop valve, the third stop valve and the fourth stop valve are the same in model size.
As a still further scheme of the invention: the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve are the same in model size.
As a still further scheme of the invention: the drainage tube, the first branch drainage tube, the second branch drainage tube, the return tube and the branch return tube are the same in size.
As a still further scheme of the invention: the drainage tube, the first branch drainage tube, the second branch drainage tube, the return tube and the branch return tube are soft tubes.
As a still further scheme of the invention: the controller is electrically connected with the compression condensing unit, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve through leads.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the electromagnetic valve is arranged in front of the forced precooling device and the natural cold accumulation device to control the flow direction of the refrigerant, so that the forced precooling device and the natural cold accumulation device are alternately used to cope with different working conditions, convenience and flexibility are realized, the fruit and vegetable dry loss caused by cold insulation of the cabin by the forced precooling device is avoided, and the fruit and vegetable preservation time is effectively prolonged; stop valves are arranged in the front and at the back of the control system, so that a circuit can be manually controlled, and system damage caused by failure of the electromagnetic valve is avoided.
Drawings
Fig. 1 is a system flow chart of a control method for alternately using a forced precooling device and a natural cold storage device.
Fig. 2 is a control block diagram of a control method for alternately using a forced precooling device and a natural cold accumulation device.
In the figure: the system comprises a compression condensing unit 1, an expansion valve 2, a first stop valve 3, a first electromagnetic valve 4, a second stop valve 5, a second electromagnetic valve 6, a third electromagnetic valve 7, a third stop valve 8, a fourth electromagnetic valve 9, a fourth stop valve 10, a forced precooling device 11, a natural cold storage device 12, a drainage tube 13, a first branch drainage tube 14, a second branch drainage tube 15, a return tube 16, a branch return tube 17 and a controller 18.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, in the embodiment of the present invention, a method for controlling alternate use of a forced precooling device and a natural cold storage device includes a condensing unit 1, a forced precooling device 11, a natural cold storage device 12 and a controller 18, wherein an output end of the condensing unit 1 is fixedly connected with a drainage tube 13, the drainage tube 13 is fixedly connected with a first branch drainage tube 14 and a second branch drainage tube 15 through a three-way joint, the first branch drainage tube 14 is fixedly connected with an inlet of the forced precooling device 11, the second branch drainage tube 15 is fixedly connected with an inlet of the natural cold storage device 12, an input end of the condensing unit 1 is fixedly connected with a return tube 16, the other end of the return tube 16 is fixedly connected with an outlet of the natural cold storage device 12, an outlet of the forced precooling device 11 is fixedly connected with a branch return tube 17, the branch return tube 17 is communicated with the return tube 16 through a three-way joint, the drainage tube 13 is provided with an expansion valve 2, the first branch drainage tube 14 is provided with a first stop valve 3 and a first electromagnetic valve 4 in sequence at the front end of the inlet of the forced precooling device 11, the second branch drainage tube 15 is provided with a second stop valve 5 and a second electromagnetic valve 6 in sequence at the front end of the inlet of the natural cold storage device 12, the branch return tube 17 is provided with a third stop valve 8 and a third electromagnetic valve 7 in sequence at the front end of the outlet of the forced precooling device 11, and the return tube 16 is provided with a fourth stop valve 10 and a fourth electromagnetic valve 9 in sequence at the front end of the outlet of the natural cold storage device 12.
The first stop valve 3, the second stop valve 5, the third stop valve 8 and the fourth stop valve 10 are the same in model size.
The first electromagnetic valve 4, the second electromagnetic valve 6, the third electromagnetic valve 7 and the fourth electromagnetic valve 9 are the same in model size.
The draft tube 13, the first partial draft tube 14, the second partial draft tube 15, the return tube 16 and the partial return tube 17 are the same size.
The drainage tube 13, the first sub-drainage tube 14, the second sub-drainage tube 15, the return tube 16 and the sub-return tube 17 are all soft tubes.
The controller 18 is electrically connected to the compression condensing unit 1, the first solenoid valve 4, the second solenoid valve 6, the third solenoid valve 7 and the fourth solenoid valve 9 through wires.
The working principle of the invention is as follows:
when the device is used, a power supply is connected externally, the controller 18 controls the compression condensing unit 1 to work, the compression condensing unit 1 compresses and refrigerates the refrigerant, when the forced precooling device 11 is needed, the controller 18 controls the first electromagnetic valve 4 and the third electromagnetic valve 7 to be opened, the second electromagnetic valve 6 and the fourth electromagnetic valve 9 to be closed, the refrigerant is led out from the compression condensing unit 1 through the drainage tube 13 and enters the forced precooling device 11 through the first branch drainage tube 14, the forced precooling device 11 works to precool the storage cabin, the refrigerant absorbing heat flows out from the outlet of the forced precooling device 11 and flows into the compression condensing unit 1 through the branch return tube 17 and the return tube 16, the refrigerant is compressed and condensed again, when the natural cold storage device 12 is needed, the controller 18 controls the second electromagnetic valve 6 and the fourth electromagnetic valve 9 to be opened, the first electromagnetic valve 4 and the third electromagnetic valve 7 are closed, the refrigerant is led out from the compression condensing unit 1 through the drainage tube 13, the refrigerant which absorbs the heat flows out from the outlet of the forced precooling device 11 and flows into the compression condensing unit 1 through the return pipe 16, the state of the first electromagnetic valve 4, the second electromagnetic valve 6, the third electromagnetic valve 7 and the fourth electromagnetic valve 9 is controlled by the controller 18, so that the forced precooling device 11 and the natural cold storage device 12 are controlled to be alternately used, convenience and flexibility are realized, the fruit and vegetable dry loss caused by cold insulation of the cabin by the forced precooling device 11 is avoided, and the fruit and vegetable storage time is effectively prolonged; through set up first stop valve 3 before first solenoid valve 4, set up second stop valve 5 before second solenoid valve 6, be provided with third stop valve 8 before third solenoid valve 7, set up fourth stop valve 10 before fourth solenoid valve 9, can manual control return circuit, cause the system to damage when avoiding the solenoid valve failure.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a control method for forcing precooling apparatus and natural cold-storage device to use alternately, includes compression condensing unit (1), forces precooling apparatus (11), natural cold-storage device (12) and controller (18), its characterized in that: the output fixedly connected with drainage tube (13) of compression condensing unit (1), drainage tube (13) divide drainage tube (15) through three way connection fixedly connected with first branch drainage tube (14) and second, first branch drainage tube (14) and the import fixed connection of forcing precooling apparatus (11), the import fixed connection of second branch drainage tube (15) and natural cold-storage device (12), the input fixedly connected with back flow (16) of compression condensing unit (1), back flow (16) other end and natural cold-storage device (12) export fixed connection, force precooling apparatus (11) export fixedly connected with branch back flow (17), divide back flow (17) to be linked together through three way connection and back flow (16), be provided with expansion valve (2) on drainage tube (13), first branch drainage tube (14) has set gradually first stop valve (3) and second stop drainage tube (17) at forcing precooling apparatus (11) import front end First solenoid valve (4), the second divides drainage tube (15) to have set gradually second stop valve (5) and second solenoid valve (6) at natural cold-storage device (12) import front end, divide back flow (17) to have set gradually third stop valve (8) and third solenoid valve (7) at forced precooling apparatus (11) export front end, back flow (16) have set gradually fourth stop valve (10) and fourth solenoid valve (9) at natural cold-storage device (12) export front end.
2. The method for controlling the alternate use of the forced precooling device and the natural cold accumulation device according to claim 1, wherein the method comprises the following steps: the first stop valve (3), the second stop valve (5), the third stop valve (8) and the fourth stop valve (10) are the same in model size.
3. The method for controlling the alternate use of the forced precooling device and the natural cold accumulation device according to claim 1, wherein the method comprises the following steps: the first electromagnetic valve (4), the second electromagnetic valve (6), the third electromagnetic valve (7) and the fourth electromagnetic valve (9) are the same in model size.
4. The method for controlling the alternate use of the forced precooling device and the natural cold accumulation device according to claim 1, wherein the method comprises the following steps: the drainage tube (13), the first sub-drainage tube (14), the second sub-drainage tube (15), the return tube (16) and the sub-return tube (17) are the same in size.
5. The method for controlling the alternate use of the forced precooling device and the natural cold accumulation device according to claim 1, wherein the method comprises the following steps: the drainage tube (13), the first branch drainage tube (14), the second branch drainage tube (15), the return tube (16) and the branch return tube (17) are all soft tubes.
6. The method for controlling the alternate use of the forced precooling device and the natural cold accumulation device according to claim 1, wherein the method comprises the following steps: the controller (18) is electrically connected with the compression condensing unit (1), the first electromagnetic valve (4), the second electromagnetic valve (6), the third electromagnetic valve (7) and the fourth electromagnetic valve (9) through wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111283579.3A CN113883804A (en) | 2021-11-01 | 2021-11-01 | Control method for alternate use of forced precooling device and natural cold accumulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111283579.3A CN113883804A (en) | 2021-11-01 | 2021-11-01 | Control method for alternate use of forced precooling device and natural cold accumulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113883804A true CN113883804A (en) | 2022-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111283579.3A Pending CN113883804A (en) | 2021-11-01 | 2021-11-01 | Control method for alternate use of forced precooling device and natural cold accumulation device |
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| CN (1) | CN113883804A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200990845Y (en) * | 2006-12-04 | 2007-12-19 | 农业部规划设计研究院 | Defrosting-free fruit-vegetable precooling, storing fresh reservation facility |
| CN202371953U (en) * | 2011-12-19 | 2012-08-08 | 河南科技大学 | Ice-storage system for food preservation |
| CN104236245A (en) * | 2013-10-21 | 2014-12-24 | 宁波市农业科学研究院 | Energy saving control system for precooling cold store |
| CN105640164A (en) * | 2015-12-30 | 2016-06-08 | 西安交通大学 | Ice storage cold fresh display cabinet |
| CN206222794U (en) * | 2016-11-18 | 2017-06-06 | 四川省农业机械研究设计院 | Photovoltaic freezer |
| CN112178844A (en) * | 2020-09-21 | 2021-01-05 | 广东申菱环境系统股份有限公司 | Air conditioning unit with cold accumulation function and control method thereof |
-
2021
- 2021-11-01 CN CN202111283579.3A patent/CN113883804A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200990845Y (en) * | 2006-12-04 | 2007-12-19 | 农业部规划设计研究院 | Defrosting-free fruit-vegetable precooling, storing fresh reservation facility |
| CN202371953U (en) * | 2011-12-19 | 2012-08-08 | 河南科技大学 | Ice-storage system for food preservation |
| CN104236245A (en) * | 2013-10-21 | 2014-12-24 | 宁波市农业科学研究院 | Energy saving control system for precooling cold store |
| CN105640164A (en) * | 2015-12-30 | 2016-06-08 | 西安交通大学 | Ice storage cold fresh display cabinet |
| CN206222794U (en) * | 2016-11-18 | 2017-06-06 | 四川省农业机械研究设计院 | Photovoltaic freezer |
| CN112178844A (en) * | 2020-09-21 | 2021-01-05 | 广东申菱环境系统股份有限公司 | Air conditioning unit with cold accumulation function and control method thereof |
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| PB01 | Publication | ||
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| CB03 | Change of inventor or designer information |
Inventor after: Sheng Wei Inventor after: Gao Dongfeng Inventor after: Zhu Jianyu Inventor after: Tan Xingguo Inventor after: Zheng Haikun Inventor after: Hao Xiaoru Inventor after: Zhao Zhengqiang Inventor after: Ma Jianrong Inventor after: Zhang Jing Inventor after: Chen Jinlong Inventor before: Sheng Wei Inventor before: Zhu Jianyu Inventor before: Tan Xingguo Inventor before: Zheng Haikun Inventor before: Hao Xiaoru Inventor before: Zhao Zhengqiang Inventor before: Ma Jianrong Inventor before: Gao Dongfeng Inventor before: Chen Jinlong |
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| CB03 | Change of inventor or designer information |