CN217110109U - Hot gas defrosting device with electromagnetic valve combined with heat storage material and refrigerator - Google Patents
Hot gas defrosting device with electromagnetic valve combined with heat storage material and refrigerator Download PDFInfo
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- CN217110109U CN217110109U CN202220876625.4U CN202220876625U CN217110109U CN 217110109 U CN217110109 U CN 217110109U CN 202220876625 U CN202220876625 U CN 202220876625U CN 217110109 U CN217110109 U CN 217110109U
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Abstract
The utility model discloses a hot gas defroster and refrigerator of heat accumulation material are united to solenoid valve, the utility model discloses in: the outlet end of the evaporator is connected with a compressor, and the outlet end of the compressor is respectively connected with a first condenser and a second condenser; the outlet end of the first condenser is connected with the evaporator through a throttling device; the outlet end of the second condenser is connected with the electromagnetic valve, the first branch is connected to the high-pressure end of the throttling device, and the second branch is connected with the evaporator; the outer side surface of the second condenser is wrapped with a phase change heat storage material layer. The utility model is provided with the electromagnetic valve at the rear end of the second condenser, and the two branches of the electromagnetic valve are respectively connected with the high-pressure end of the throttling device and the rear low-pressure end of the throttling device; through the opening to control to the solenoid valve, realize normal refrigeration, steam defrost system during operation mutual noninterference, through wrap up one deck phase change heat storage material in the condenser outside, can make normal refrigeration and heating power defrost efficiency all can promote, the reliability is high by a wide margin.
Description
Technical Field
The utility model belongs to the technical field of the refrigerator, especially, relate to a hot gas defroster and refrigerator of heat accumulation material are united to solenoid valve.
Background
When the steam compression refrigeration system works, the surface temperature of the evaporator is reduced, and when water vapor in air is more, the water vapor can frost on the surface of the evaporator, so that the heat transfer resistance of the surface of the evaporator is increased, and the heat transfer performance is deteriorated. Therefore, how to defrost effectively and reduce the energy consumption of defrosting are important problems to be solved urgently.
The mainstream defrosting mode of the existing refrigerator/cabinet is as follows: automatic electric heating defrosting, manual defrosting and steam compression hot gas defrosting. The defrosting method mainly comprises the following steps that (1) steam compression hot gas defrosting is mainly used for commercial refrigeration appliances, and when a refrigerator/cabinet is in defrosting demand, an inlet of an evaporator is directly communicated with an outlet of a condenser through components and parts such as a one-way electromagnetic valve arranged in a refrigeration system; the high-temperature and high-pressure refrigerant in the condenser directly enters the evaporator through components such as a one-way electromagnetic valve and the like, so that the rapid temperature rise of the refrigerant in the evaporator is realized, and a frosting layer outside the evaporator is eliminated. In order to improve the heating efficiency of a steam compression hot gas defrosting system, the technology is upgraded in the industry, multiple electromagnetic valves and heat storage materials are combined with each other, the surplus heat is stored, and the surplus heat is generally stored by the aid of the electromagnetic valves.
An authorization notice No. CN210861762U & lt & gt vapor compression refrigeration system for hot gas defrosting by combining heat storage materials & gt discloses a vapor compression refrigeration system for hot gas defrosting by combining heat storage materials & gt. The evaporator outlet is sequentially connected with the gas-liquid separator and the inlet end of the compressor; the heat storage material combined hot gas defrosting system comprises a compressor electromagnetic valve, an evaporator and a gas-liquid separator which are sequentially connected, wherein a gas outlet of the gas-liquid separator is connected with a heat storage material, a gas outlet of the heat storage material is connected with an inlet end of the compressor, and the heat storage material is wrapped on a shell of the compressor. The utility model discloses avoid the emergence of the wet compression of compressor, the compressor temperature reduces in the defrosting process simultaneously for defrosting speed has improved the performance of vapor compression refrigerating system when defrosting.
The mode of wrapping up the heat accumulation material outside the compressor has very big increase compressor overload risk, and normal refrigeration efficiency receives the influence. And the heat storage capacity of the heat storage material is limited, and the phenomena of insufficient heat supply and insufficient defrosting often occur when the hot gas defrosting system works. The use of solenoid valves greatly increases the cost of system implementation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a solenoid valve and hot gas defroster and refrigerator of heat accumulation material, set up the solenoid valve in the second condenser rear end, connect throttling arrangement high-pressure end and throttling arrangement low-pressure end behind two branches through the solenoid valve respectively; through the opening to control to the solenoid valve, realize normal refrigeration, steam defrost system during operation mutual noninterference, through wrap up one deck phase change heat storage material in the condenser outside, can make normal refrigeration and heating power defrost efficiency all can promote by a wide margin, the reliability is high, control is simple, with low costs.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
the utility model relates to a hot gas defrosting device of a solenoid valve combined heat storage material, which comprises a compressor and an evaporator; the outlet end of the evaporator is connected with a compressor, and the outlet end of the compressor is respectively connected with a first condenser and a second condenser; the outlet end of the first condenser is connected with the evaporator through a throttling device; the outlet end of the second condenser is connected with an electromagnetic valve, the outlet end of the electromagnetic valve comprises a first branch and a second branch, the first branch is connected to the high-pressure end of the throttling device, and the second branch is connected with the evaporator; and the outer side surface of the second condenser is wrapped with a phase change heat storage material layer.
Further, the electromagnetic valve adopts a bistable electromagnetic valve or an electric rotary valve.
Further, the first branch and the second branch can be conducted only one at the same time.
A refrigerator employs a hot air defrosting apparatus having a solenoid valve in combination with a heat storage material.
The utility model discloses following beneficial effect has:
the utility model is provided with the electromagnetic valve at the rear end of the second condenser, and the two branches of the electromagnetic valve are respectively connected with the high-pressure end of the throttling device and the rear low-pressure end of the throttling device; through the opening to control to the solenoid valve, realize normal refrigeration, steam defrost system during operation mutual noninterference, through wrap up one deck phase change heat storage material in the condenser outside, can make normal refrigeration and heating power defrost efficiency all can promote by a wide margin, the reliability is high, control is simple, with low costs.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a hot gas defrosting apparatus of a solenoid valve combined with a heat storage material and a refrigerator.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1, the present invention relates to a hot air defrosting device and a refrigerator using a solenoid valve in combination with a heat storage material, which comprises a compressor 1 and an evaporator 7; the outlet end of the evaporator 7 is connected with the compressor 1, and the outlet end of the compressor 1 is respectively connected with the first condenser 2 and the second condenser 3;
the outlet end of the first condenser 2 is connected with an evaporator 7 through a throttling device 6; the outer side surface of the second condenser 3 is wrapped with a phase change heat storage material layer 4; the outlet end of the second condenser 3 is connected with an electromagnetic valve 5, the outlet end of the electromagnetic valve 5 comprises a first branch and a second branch, the first branch is connected to the high-pressure end of a throttling device 6, and the second branch is connected with an evaporator 7; the first branch and the second branch can be conducted by only one branch at the same time; the electromagnetic valve 5 adopts a bistable electromagnetic valve or an electric rotary valve.
Example two:
the embodiment is a hot gas defrosting device of an electromagnetic valve combined with a heat storage material and a control method of a refrigerator, and the control method comprises the following steps:
in the normal refrigeration process, the opening direction of the electromagnetic valve 5 is adjusted to be a branch towards the high-pressure end of the throttling device 6;
during hot gas defrost, the solenoid valve 5 is opened to a branch adjusted to the low pressure side of the throttle 6.
The embodiment is a working principle of a hot gas defrosting device of a solenoid valve combined heat storage material and a refrigerator: when the vapor compression refrigeration system works, the opening direction of the electromagnetic valve 5 is adjusted to be a branch towards the high-pressure end of the throttling device 6; the low-temperature and low-pressure refrigerant gas from the evaporator 7 enters the compressor 1, is compressed and then becomes high-temperature and high-pressure refrigerant gas, and after the first condenser 2 and the second condenser 3, the first condenser 2 and the second condenser 3 both participate in refrigeration cycle, so that the heat dissipation area is increased, and the efficiency of a refrigeration system is improved; at this time, since the phase change heat storage material is a material that can realize solid-liquid interconversion at a high temperature, heat is absorbed continuously by the influence of the high-temperature and high-pressure refrigerant, and when the phase change point is reached, the form changes from a solid state to a liquid state, and a large amount of latent heat is accumulated. Under the combined action of the first condenser 2, the second condenser 3 and the phase change heat storage material, the high-temperature and high-pressure refrigerant is cooled by the coolant to be changed into high-temperature and high-pressure liquid, the high-temperature and high-pressure liquid enters the throttling device 6 to be changed into a two-phase flow refrigerant, and the two-phase flow refrigerant returns to the compressor 1 after absorbing heat, so that a complete refrigeration cycle is realized.
When the hot gas defrost system is operating, the solenoid valve 5 opens to a branch that is adjusted towards the low pressure end of the throttle 6. The high-temperature and high-pressure gas discharged from the compressor 1 at this time directly reaches the evaporator 1 via the second condenser 3 pipe. The surface temperature of the second condenser 3 is gradually reduced, and when the temperature is lower than the phase change point of the phase change heat storage material, the phase change heat storage material is changed from a liquid state to a solid state, a large amount of latent heat is released, and the hot gas defrosting system can still work efficiently. The gas is heated to be in an overheat state and then enters the suction port of the compressor 1, and the cycle of the hot gas defrosting system is completed.
Example three:
a refrigerator is provided, which is provided with a hot air defrosting device of a solenoid valve combined heat storage material.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. A hot gas defrosting device of a magnetic valve combined heat storage material comprises a compressor (1) and an evaporator (7); the outlet end of the evaporator (7) is connected with the compressor (1), and the evaporator is characterized in that:
the outlet end of the compressor (1) is respectively connected with the first condenser (2) and the second condenser (3);
the outlet end of the first condenser (2) is connected with an evaporator (7) through a throttling device (6);
the outlet end of the second condenser (3) is connected with an electromagnetic valve (5), the outlet end of the electromagnetic valve (5) comprises a first branch and a second branch, the first branch is connected to the high-pressure end of the throttling device (6), and the second branch is connected with the evaporator (7);
and the outer side surface of the second condenser (3) is wrapped with a phase change heat storage material layer (4).
2. A hot gas defrost device with solenoid valve in combination with heat storage material according to claim 1, characterized in that the solenoid valve (5) is a bistable solenoid valve or an electric rotary valve.
3. The hot gas defrosting device using the combination of the solenoid valve and the heat storage material according to claim 1, wherein the first branch and the second branch can be conducted only one at a time.
4. A refrigerator employing a hot gas defrosting apparatus of a solenoid valve in combination with a heat storage material according to any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220876625.4U CN217110109U (en) | 2022-04-15 | 2022-04-15 | Hot gas defrosting device with electromagnetic valve combined with heat storage material and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220876625.4U CN217110109U (en) | 2022-04-15 | 2022-04-15 | Hot gas defrosting device with electromagnetic valve combined with heat storage material and refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217110109U true CN217110109U (en) | 2022-08-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220876625.4U Active CN217110109U (en) | 2022-04-15 | 2022-04-15 | Hot gas defrosting device with electromagnetic valve combined with heat storage material and refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217110109U (en) |
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2022
- 2022-04-15 CN CN202220876625.4U patent/CN217110109U/en active Active
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