CN213687397U

CN213687397U - Hot gas defrosting single refrigerating system

Info

Publication number: CN213687397U
Application number: CN202021976801.9U
Authority: CN
Inventors: 王英虎; 高国栋; 王金虎
Original assignee: Inner Mongolia Fuyuan Refrigeration Equipment Co ltd
Current assignee: Inner Mongolia Fuyuan Refrigeration Equipment Co ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-07-13
Anticipated expiration: 2030-09-11

Abstract

The utility model discloses a steam defrosting list refrigerating system, including the integrative unit of box condensation, the integrative unit of box condensation is connected with the air-cooler through return air pipeline and feed line respectively, the integrative unit of box condensation communicates with the return air pipeline through hot gas pipeline, and the return air pipeline communicates with the feed line through the return liquid pipeline, all be provided with solenoid valve and ball valve on return air pipeline, feed line, hot gas pipeline and the return liquid pipeline. This steam single refrigerating system that defrosts adopts steam defrosting system principle to carry out the defrosting of freezer interior evaporimeter, and this scheme can guarantee refrigerating system steady operation, also can guarantee that the goods in the freezer does not receive the heat that other defrosting modes produced, causes the dry consumption, and this mode is simple and convenient to system operation, more does benefit to the energy-conservation of system.

Description

Hot gas defrosting single refrigerating system

Technical Field

The utility model relates to a steam defrosting technical field specifically is a steam defrosting list refrigerating system.

Background

When the evaporation temperature of the refrigeration system is lower than 0 ℃, frost layers are inevitably generated on the surface of the evaporator. The frost layer not only increases heat transfer resistance, but also increases air flow resistance in a forced circulation evaporator (e.g., a cold air blower), which affects heat exchange efficiency. At the present stage, a conventional defrosting method of a single refrigeration system (one main machine is connected with one air cooler) is electric defrosting, and a part of hot defrosting valves are arranged on the market.

In the refrigeration industry, there is a statement that "hot gas belongs to a byproduct of operation of a refrigeration system", and the hot gas is exhaust gas during operation of the refrigeration system, and needs to be cooled by a condenser to be converted into a liquid refrigerant, and the hot gas is utilized to melt a frost layer on the surface of an evaporator, namely, a hot gas defrosting mode, and a hot gas defrosting method, a hot gas defrosting and refrigeration cycle method with the patent number of CN201710061935.4 solves the problem that the defrosting effect of the existing hot gas defrosting method is poor, but the device is not convenient to use and energy-saving enough, so that the prior art has defects and needs to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a steam single refrigerating system that defrosts to the steam defrosting mode that provides in solving above-mentioned background art is not good problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a steam defrosting list refrigerating system, includes the integrative unit of box condensation, the integrative unit of box condensation is connected with the air-cooler through return air pipeline and liquid feed pipeline respectively, the integrative unit of box condensation communicates with the return air pipeline through hot-air pipeline, and the return air pipeline communicates with the liquid feed pipeline through the return liquid pipeline, all be provided with solenoid valve and ball valve on return air pipeline, liquid feed pipeline, hot-air pipeline and the return liquid pipeline.

Preferably, the air cooler top is connected with the cylinder through the mount, and the mount sets up to "L" type structure to be fixed with the fixed plate on the telescopic shaft of cylinder.

Preferably, the liquid supply pipeline is provided with a filter and a one-way valve.

Preferably, the liquid supply pipeline and the liquid return pipeline are both provided with expansion valves.

Preferably, the fixing plate is in an Contraband-shaped structure, one end of the root cross bar of the fixing plate is connected with a scraping plate, and symmetrical brushes are fixed on the inner side of the scraping plate.

Compared with the prior art, the beneficial effects of the utility model are that: this steam single refrigerating system that defrosts adopts steam defrosting system principle to carry out the defrosting of freezer interior evaporimeter, and this scheme can guarantee refrigerating system steady operation, also can guarantee that the goods in the freezer does not receive the heat that other defrosting modes produced, causes the dry consumption, and this mode is simple and convenient to system operation, more does benefit to the energy-conservation of system.

Drawings

FIG. 1 is a schematic diagram of a single refrigeration system for hot gas defrosting according to the present invention;

FIG. 2 is an enlarged view of the point A of FIG. 1 of a single unit refrigeration system for hot gas defrosting according to the present invention;

fig. 3 is a schematic view of the fixing plate connecting scraper of the hot air defrosting single refrigerating system of the present invention.

In the figure: 1. the box-type condensation integrated unit comprises a box-type condensation integrated unit, 2, an air cooler, 3, an air return pipeline, 4, a liquid supply pipeline, 5 a fixing plate, 6, an electromagnetic valve, 7, a hot air pipeline, 8, a one-way valve, 9, a liquid return pipeline, 10, a filter, 11, a cylinder, 12, a fixing frame, 13, a scraping plate, 14, a brush, 15 and an expansion valve.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a hot gas defrosting single refrigeration system comprises a box type condensation integrated unit 1, an air cooler 2, an air return pipeline 3, a liquid supply pipeline 4, a fixing plate 5, an electromagnetic valve 6, a hot gas pipeline 7, a one-way valve 8, a liquid return pipeline 9, a filter 10, a cylinder 11, a fixing frame 12, a scraper 13, a brush 14 and an expansion valve 15, wherein the box type condensation integrated unit 1 is connected with the air cooler 2 through the air return pipeline 3 and the liquid supply pipeline 4 respectively, the top end of the air cooler 2 is connected with the cylinder 11 through the fixing frame 12, the fixing frame 12 is of an L-shaped structure, the fixing plate 5 is fixed on a telescopic shaft of the cylinder 11, the fixing frame 12 provides a good fixing position for the cylinder 11 and prevents the telescopic track of the telescopic shaft of the cylinder 11 from being influenced, the fixing plate 5 is of an Contraband-shaped structure, one end of 2 cross rods of the fixing plate 5 is connected with the scraper 13, and the inner side of, so as to ensure that a medium of the liquid return pipeline 9 returning to the air return pipeline 3 is low-pressure gas, and ensure that no damage is caused to an external compressor, the scraper 13 is driven by driving force to drive the brush 14 to rub the air cooler 2, frost accumulated on the air cooler 2 is subjected to a preliminary wiping effect, and the defrosting efficiency of the air cooler 2 is further improved, the box-type condensation all-in-one unit 1 is communicated with the liquid return pipeline 3 through the hot air pipeline 7, the air return pipeline 3 is communicated with the liquid supply pipeline 4 through the liquid return pipeline 9, the liquid supply pipeline 4 is provided with the filter 10 and the one-way valve 8, the filter 10 can filter mixed impurities in liquid to avoid the blockage of the liquid supply pipeline 4, the one-way valve 8 ensures the flow direction of the liquid in the liquid supply pipeline 4 to avoid the backflow of the liquid, the liquid supply pipeline 4 and the liquid return pipeline 9 are both provided with the expansion valve 15, and the expansion valve 15 ensures that, the compressor is ensured not to be damaged, and the gas return pipeline 3, the liquid supply pipeline 4, the hot gas pipeline 7 and the liquid return pipeline 9 are all provided with an electromagnetic valve 6 and a ball valve.

The working principle is as follows: when the hot-gas defrosting single refrigeration system is used, firstly, the power supply of the cylinder 11 is turned on, the cylinder 11 is electrified to drive the fixing plate 5 to descend, the fixing plate 5 descends to drive the scraper 13 to descend, the scraper 13 descends to drive the brush 14 to rub with the box type condensing integrated unit 1, the frost layer on the surface of the box type condensing integrated unit 1 is preliminarily removed, then, the solenoid valve 6 that will lead to the liquid feed pipeline 4 of air-cooler 2 is closed, simultaneously, also close the solenoid valve 6 that air-cooler 2 is connected return air pipe 3, and finally, draw forth branch road back with hot gas pipe 7 of box condensation body unit 1, the steam in the hot gas pipe 7 passes through return air pipe 3 and gets into air-cooler 2, and at this moment, the air-cooler 2 that the system possess the evaporimeter effect is transformed into the condenser, makes the frost layer on air-cooler 2 surface melt totally, and this is exactly this steam defrosting list refrigerating system's use.

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 modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a steam defrosting list refrigerating system, includes integrative unit of box condensation (1), integrative unit of box condensation (1) is connected with air-cooler (2), its characterized in that through return air pipeline (3) and liquid supply pipe way (4) respectively: the box-type condensation integrated unit (1) is communicated with the gas return pipeline (3) through a hot gas pipeline (7), the gas return pipeline (3) is communicated with the liquid supply pipeline (4) through a liquid return pipeline (9), and the gas return pipeline (3), the liquid supply pipeline (4), the hot gas pipeline (7) and the liquid return pipeline (9) are all provided with an electromagnetic valve (6) and a ball valve.

2. A hot gas defrost mono refrigeration system as claimed in claim 1 wherein: the air cooler (2) top is connected with cylinder (11) through mount (12), and mount (12) set up to "L" type structure to be fixed with fixed plate (5) on the telescopic shaft of cylinder (11).

3. A hot gas defrost mono refrigeration system as claimed in claim 1 wherein: and a filter (10) and a one-way valve (8) are arranged on the liquid supply pipeline (4).

4. A hot gas defrost mono refrigeration system as claimed in claim 1 wherein: and the liquid supply pipeline (4) and the liquid return pipeline (9) are both provided with expansion valves (15).

5. A hot gas defrost mono refrigeration system as claimed in claim 2 wherein: the fixing plate (5) is of an Contraband-shaped structure, one ends of 2 transverse rods of the fixing plate (5) are connected with scraping plates (13), and symmetrical hairbrushes (14) are fixed on the inner sides of the scraping plates (13).