阅读说明：本技术 一种热气化霜系统 (Hot gas defrosting system ) 是由 高大峰 于 2019-10-31 设计创作，主要内容包括：本发明公开了一种热气化霜系统,包括一个冷凝器、一个机组、一个冷风机、高温控制系统和低温控制系统；高温控制系统由一个前手阀、一个过滤器、一个电磁阀、一个高温膨胀阀和一个后手阀相互串联连接组成；低温控制系统由一个前手阀、一个过滤器、一个电磁阀、一个低温膨胀阀和一个后手阀相互串联连接组成；冷凝器与机组连接,机组与冷风机之间并联高温控制系统和低温控制系统,高、低温控系统的前手阀分别通过管路与机组连接,高、低温控系统的后手阀分别通过管路与冷风机连接。本发明利用油分高温高压热气进行化霜,热气直接作用在蒸发器上,效率远远大于电化霜与自然化霜,比电化霜更节能,自然化霜更节省时间。(The invention discloses a hot air defrosting system which comprises a condenser, a unit, an air cooler, a high-temperature control system and a low-temperature control system, wherein the condenser is arranged on the unit; the high-temperature control system is formed by mutually connecting a front hand valve, a filter, an electromagnetic valve, a high-temperature expansion valve and a rear hand valve in series; the low-temperature control system is formed by mutually connecting a front hand valve, a filter, an electromagnetic valve, a low-temperature expansion valve and a rear hand valve in series; the condenser is connected with the unit, the high-temperature control system and the low-temperature control system are connected between the unit and the air cooler in parallel, the front hand valves of the high-temperature control system and the low-temperature control system are connected with the unit through pipelines respectively, and the rear hand valves of the high-temperature control system and the low-temperature control system are connected with the air cooler through pipelines respectively. The invention utilizes the oil content high-temperature high-pressure hot gas for defrosting, the hot gas directly acts on the evaporator, the efficiency is far higher than that of electric defrosting and natural defrosting, and the electric defrosting and the natural defrosting are more energy-saving and more time-saving than the electric defrosting and the natural defrosting.)

1. A hot gas defrosting system is characterized by comprising an evaporator (6), an oil separating tank (8) and a temperature control system;

the temperature control system is formed by sequentially connecting a front hand valve (1), a drying filter (2), an electromagnetic valve (3), an expansion valve (4) and a rear hand valve (5) in series, and a one-way valve (12) is connected between the front hand valve (1) and the rear hand valve (5) in parallel;

the rear hand valve (5) is connected with one end of an evaporator (6) through a pipeline, and the other end of the evaporator (6) is respectively communicated with an oil separation tank (8) and an air return pipe through a tee joint (7);

an angle valve (11), a defrosting valve (10) and a one-way stop valve (9) are sequentially arranged on a pipeline for communicating the evaporator (6) and the oil separating tank (8).

Technical Field

The invention relates to a defrosting system, in particular to a hot gas defrosting system.

Background

‌ the defrosting of the current common warehouse internal evaporator adopts more forms of electric defrosting and natural defrosting, and has the characteristics of high speed of electric defrosting, simple construction, convenient control and the like. However, when defrosting the electric defrosting, not only the heat load in the refrigerator is inevitably increased (that is, the cooling capacity of the refrigerator is required to be increased properly), but also the power consumption of the defrosting itself is not small, and the power consumption is not essential for the refrigerated goods. Considering energy conservation and environmental protection, the electrochemical frost energy consumption factor is very prominent in the use process of the refrigeration house.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the hot air defrosting system which is good in defrosting effect, short in defrosting time and small in influence on temperature fluctuation of the cold storage.

In order to achieve the purpose, the invention provides the following technical scheme: a hot air defrosting system comprises a condenser, a unit, an air cooler, a high-temperature control system and a low-temperature control system; the high-temperature control system is formed by mutually connecting a front hand valve, a filter, an electromagnetic valve, a high-temperature expansion valve and a rear hand valve in series; the low-temperature control system is formed by mutually connecting a front hand valve, a filter, an electromagnetic valve, a low-temperature expansion valve and a rear hand valve in series; the condenser is connected with the unit, the high-temperature control system and the low-temperature control system are connected between the unit and the air cooler in parallel, the front hand valves of the high-temperature control system and the low-temperature control system are connected with the unit through pipelines respectively, and the rear hand valves of the high-temperature control system and the low-temperature control system are connected with the air cooler through pipelines respectively.

Compared with the prior art, the invention utilizes the oil content high-temperature high-pressure hot gas for defrosting, the hot gas directly acts on the evaporator, the efficiency is far higher than that of electric defrosting and natural defrosting, and the electric defrosting and the natural defrosting are more energy-saving and more time-saving than the electric defrosting and the natural defrosting.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

in the figure: 1. a front hand valve; 2. drying the filter; 3. an electromagnetic valve; 4. an expansion valve; 5. a rear hand valve; 6. evaporator, 7, tee bend, 8, oil content jar, 9, check stop valve, 10, defrosting valve, 11, angle valve, 12, check valve.

Detailed Description

The invention will be further explained with reference to the drawings.

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.

As shown in fig. 1, the present invention provides a technical solution: comprises an evaporator 6, an oil separation tank 8 and a temperature control system; the temperature control system is formed by sequentially connecting a front hand valve 1, a drying filter 2, an electromagnetic valve 3, an expansion valve 4 and a rear hand valve 5 in series, and a one-way valve 12 is also connected in parallel between the front hand valve 1 and the rear hand valve 5; the rear hand valve 5 is connected with one end of an evaporator 6 through a pipeline, and the other end of the evaporator 6 is respectively communicated with an oil separation tank 8 and an air return pipe through a tee joint 7; an angle valve 11, a defrosting valve 10 and a one-way stop valve 9 are sequentially arranged on a pipeline for communicating the evaporator 6 with the oil separating tank 8.

When the aluminum busbar works, the liquid supply is evaporated through the front hand valve 1, the drying filter 2, the electromagnetic valve 3, the expansion valve 4, the rear hand valve 5 and the evaporator 6 to enable the temperature of the cold storage to reach a set value, when the aluminum busbar is frosted to seriously affect the evaporation effect, the electromagnetic valve 3 is closed, the defrosting valve 10 is opened, high-temperature and high-pressure hot gas enters the evaporator 6 through the oil separating tank 8 through the defrosting valve 10, then the evaporator 6 is heated for defrosting through the evaporator 6, and after defrosting is finished, the electromagnetic valve 3 is opened and the defrosting valve 10 is closed; the oil-containing high-temperature and high-pressure hot gas is utilized to defrost, the hot gas directly acts on the evaporator 6, the efficiency is far greater than that of electric defrosting and natural defrosting, and compared with the electric defrosting, the electric defrosting device is more energy-saving, and the natural defrosting time is saved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any minor modifications, equivalent replacements and improvements made to the above embodiment according to the technical spirit of the present invention should be included in the protection scope of the technical solution of the present invention.