US20190234665A1

US20190234665A1 - Ice making machine set and refrigeration system

Info

Publication number: US20190234665A1
Application number: US16/383,686
Authority: US
Inventors: Guangjing Li
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-01-11
Filing date: 2019-04-15
Publication date: 2019-08-01
Also published as: CA3046836A1; WO2018129670A1

Abstract

An ice making machine set and refrigeration system, the ice making machine set comprising: a vertical liquid reservoir, which has a liquid inlet port and an air outlet port and a lower positioned liquid outlet port, a refrigeration compressor, an oil separator and an oil reservoir; an inhalation valve is coupled between the vertical liquid reservoir and the refrigeration compressor; the refrigeration compressor, the oil separator and the oil reservoir connect sequentially; a throttle valve is coupled to the liquid inlet port; the ice making machine set also comprising a valve to control the liquid outlet port. By means of vertical liquid reservoir, the static pressure of the refrigerant liquid may be increased so as to reduce cavitation of the pump, it will reduce the quantity of lubricant charged in the refrigerant may be reduced.

Description

CROSS-REFERENCE TO RELATED APPLICATION

This patent application is a continuation of International Application No. PCT/CN2017/070844, filed on Jan. 11, 2017, which is hereby incorporated by reference in its entirety.

TECHNICAL FIELD

The present application relates generally to an ice making set and a refrigeration system.

BACKGROUND

CN91108085.6 discloses a unitary screw compression refrigeration ice making set, comprising a horizontal refrigerant low pressure circulating tank, a refrigeration compressor, a pump, etc. However, the lubricant of the refrigeration compressor tends to flow outwardly with the refrigerant, which causes the refrigerant to be mixed with a large amount of lubricant and a large lubricant charged in refrigerant, it will affect the refrigeration efficiency seriously.

SUMMARY OF THE INVENTION

In order to overcome the deficiencies of the prior art, the first object of the present application is to provide an ice making machine set, by using a designed combination of a vertical liquid reservoir, a refrigeration compressor, an oil separator and an oil reservoir, to reduce the lubricant charged in refrigerant.
The second object of the present application is to provide a refrigeration system, by using a designed combination of a vertical liquid reservoir, a refrigeration compressor, an oil separator and an oil reservoir, to reduce the lubricant charged in refrigerant.
To achieve the first object, this present application provides the technical solutions as follows:
An ice making machine set comprising a vertical liquid reservoir, which is vertically arranged and has a liquid inlet port and an air outlet port, a refrigeration compressor, an oil separator and an oil reservoir; a bottom end of the vertical liquid reservoir has a liquid outlet port; the liquid inlet port of the vertical liquid reservoir and the air outlet port of the vertical liquid reservoir are both positioned above the liquid outlet port of the vertical liquid reservoir; an inhalation valve is coupled between the air outlet port of the vertical liquid reservoir and an inlet end of the refrigeration compressor; an outlet end of the refrigeration compressor is used to connect with an inlet end of the oil separator, a liquid outlet end of the oil separator is used to connect with an inlet end of the oil reservoir, a throttle valve is coupled to the liquid inlet port of the vertical liquid reservoir; the ice making machine set further comprising a valve which is used to control opening and closing of the liquid outlet port of the vertical liquid reservoir.
The air outlet port of the vertical liquid reservoir is positioned above the liquid inlet port of the vertical liquid reservoir; a top end of the vertical liquid reservoir has a refrigerant inlet; the refrigeration compressor, the oil separator and the oil reservoir are arranged from top to bottom sequentially.
To achieve the second object, this present application provides the technical solutions as follows:
A refrigeration system comprising a vertical liquid reservoir, which is vertically arranged and has a liquid inlet port and an air outlet port, a refrigeration compressor, an oil separator, an oil reservoir and a condenser; a bottom end of the vertical liquid reservoir has a liquid outlet port; the liquid inlet port of the vertical liquid reservoir and the air outlet port of the vertical liquid reservoir are both positioned above the liquid outlet port of the vertical liquid reservoir; an inhalation valve is coupled between the air outlet port of the vertical liquid reservoir and an inlet end of the refrigeration compressor; an outlet end of the refrigeration compressor is used to connect with an inlet end of the oil separator, a liquid outlet end of the oil separator is used to connect with an inlet end of the oil reservoir; an air outlet end of the oil separator is used to connect with an inlet end of the condenser, a throttle valve is coupled between an outlet of the condenser and the liquid inlet port of the vertical liquid reservoir; the refrigeration system further comprising a valve which is used to control opening and closing of the liquid outlet port of the vertical liquid reservoir.
The refrigeration system further comprising a pump, the valve is coupled between the liquid outlet port of the vertical liquid reservoir and an inlet end of the pump; an outlet end of the pump is coupled to a liquid outlet component.
The liquid outlet component comprising a liquid supply pipe mounted with a liquid supply valve; a top end of the vertical liquid reservoir has a refrigerant inlet, the refrigerant inlet of the vertical liquid reservoir is connected to a refrigerant inlet pipe, the refrigerant inlet pipe is mounted with a master check valve, the refrigerant inlet pipe is sleeved on the liquid supply pipe.
The air outlet end of the oil separator is connected to the inlet end of the condenser by a first connecting pipe; the outlet end of the condenser is connected to the throttle valve by a second connecting pipe; the second connecting pipe goes through the first connecting pipe, the vertical liquid reservoir and the oil separator sequentially.
A liquid outlet end of the oil separator is connected to the inlet end of the oil reservoir by a third connecting pipe.
An exhaust valve is coupled between the outlet end of the refrigeration compressor and the inlet end of the oil separator, the refrigeration compressor is a refrigeration compressor with a built-in oil separator.
The air outlet port of the vertical liquid reservoir is positioned above the liquid inlet port of the vertical liquid reservoir, a top end of the vertical liquid reservoir has a refrigerant inlet; the refrigeration compressor, the oil separator, the oil reservoir are arranged from top to bottom sequentially.
The throttle valve is used to cool the refrigerant and reduce the pressure.
Compared to the prior art, the beneficial effects of the present application are as follows:
The present application uses a designed combination of a vertical liquid reservoir, a refrigeration compressor, an oil separator and an oil reservoir, to make the lubricant separate from refrigerant vapor through the oil separator and flows to the oil reservoir, it will reduce the quantity of lubrication charged in refrigerant. Furthermore, compared to horizontal refrigerant low-pressure circulating reservoir in conventional prior art, the vertical liquid reservoir gets a higher liquid height inside the liquid reservoir under the same liquid volume, which increases the static pressure of the refrigerant in the inlet end of the vertical liquid reservoir, thus reduces cavitation of the pump. In addition, the present application gets a smaller size and reduces storage space.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of the present application;

FIG. 2 is a top plan view of FIG. 1;

FIG. 3 is a schematic structural diagram of another embodiment of the present application;

FIG. 4 is a top plan view of FIG. 3;

Wherein: 1, master check valve; 2, vertical liquid reservoir; 3, refrigeration compressor; 5, exhaust valve; 6, oil separator, 7, oil reservoir; 8, inhalation valve; 12, throttle valve; 13, valve; 14, pump; 15, liquid supply pipe; 16, master liquid supply valve.

DESCRIPTION OF EMBODIMENTS

Hereinafter, in conjunction with the accompanying drawings and specific embodiments, the present application will be further described:
As described in the FIG. 1 and FIG. 2, an ice making machine set comprising a vertical liquid reservoir 2, which is vertically arranged and has a liquid inlet port and an air outlet port, a refrigeration compressor 3, an oil separator 6 and an oil reservoir 7; a bottom end of the vertical liquid reservoir 2 has a liquid outlet port; the liquid inlet port of the vertical liquid reservoir and the air outlet port of the vertical liquid reservoir are both positioned above the liquid outlet port of the vertical liquid reservoir; an inhalation valve 8 is coupled between the air outlet port of the vertical liquid reservoir 2 and an inlet end of the refrigeration compressor 3; an outlet end of the refrigeration compressor 3 is used to connect with an inlet end of the oil separator 6, a liquid outlet end of the oil separator is used to connect with an inlet end of the oil reservoir 7; a throttle valve 12 is coupled to the liquid inlet port of the vertical liquid reservoir 2; the ice making machine set further comprising a valve 13 which is to control opening and closing of the liquid outlet port of the vertical liquid reservoir 2.
By using a designed combination of a vertical liquid reservoir, a refrigeration compressor, an oil separator and an oil reservoir, to make the lubrication could be separated from the refrigerant vapor at the oil separator 6 and flows to the oil reservoir 7, it will reduce the quantity of lubrication charged in refrigerant.
This present application furthermore provides a refrigeration system comprising a vertical liquid reservoir 2, which is vertically arranged and has a liquid inlet port and an air outlet port, a refrigeration compressor 3, an oil separator 6, an oil reservoir 7 and a condenser; a bottom end of the vertical liquid reservoir 2 has a liquid outlet port; the liquid inlet port of the vertical liquid reservoir and the air outlet port of the vertical liquid reservoir are both positioned above the liquid outlet port of the vertical liquid reservoir; an inhalation valve is coupled between the air outlet port of the vertical liquid reservoir and an inlet end of the refrigeration compressor; an outlet end of the refrigeration compressor is used to connect with an inlet end of the oil separator 6, a liquid outlet end of the oil separator is used to connect with an inlet end of the oil reservoir 7; an air outlet end of the oil separator is used to connect with an inlet end of the condenser; a throttle valve 12 is coupled between an outlet of the condenser and the liquid inlet port of the vertical liquid reservoir, the refrigeration system further comprising a valve which is used to control opening and closing of the liquid outlet port of the vertical liquid reservoir. The throttle valve is used to cool the refrigerant and reduce the pressure.
By using a designed combination of a vertical liquid reservoir 2, a refrigeration compressor 3, an oil separator 6 and an oil reservoir 7, to make the lubrication separate from the refrigerant vapor at the oil separator 6 and then flowed to the oil reservoir 7, it will reduce the lubrication charged in the refrigerant.
When this refrigeration system is operated, part of the refrigerant liquid absorbs heats to evaporate to be refrigerant vapor in the ice making calandria. The refrigerant vapor mixes with the remained refrigerant liquid to become a refrigerant mixture then flows into the vertical liquid reservoir 2, wherein the refrigerant vapor in the refrigerant mixture is taken from the air outlet port of the vertical liquid reservoir 2 to the refrigeration compressor 3 by the inhalation valve 8. At this time, the refrigerant vapor is compressed to be refrigerant vapor at high-pressure high-temperature by the refrigeration compressor 3 then flows from the outlet end of the refrigeration compressor 3 to the oil separator 6 with lubrication in the refrigeration compressor 3. When flowing through the oil separator 6, the lubrication is intercepted by the oil separator 6 and flows through the liquid outlet end of the oil separator 6 to the oil reservoir 7, while the purified refrigerant vapor at high-pressure flows through the air outlet end of the oil separator 6 to the condenser to be condensed and transformed into refrigerant liquid at high-pressure normal temperature. The refrigerant liquid at high-pressure normal temperature flows through the throttle valve to be transformed into refrigerant liquid at low-pressure and low-temperature then flows into the vertical liquid reservoir 2 to reserve.
When Artificial Ice Rink is Operated:
When the valve 13 is opened, the refrigerant liquid at low-pressure and low-temperature reserved in the vertical liquid reservoir 2 could be flowed out through the liquid outlet port so it can be supplied to the artificial ice rink.
Once the refrigerant liquid at low-pressure and low-temperature absorbs heats from upright of the artificial ice rink in the calandria of article ice rink, it becomes refrigerant vapor at low-pressure and low-temperature and then enters into the liquid reservoir and circulates by the aforesaid methods.
The refrigeration system further comprising a pinup 14, the valve 13 is coupled between the liquid outlet port of vertical liquid reservoir and the inlet end of the pump 14; the outlet end of the pump 14 is connected to fluid outlet component. As compared to horizontal low-pressure circulating liquid reservoir in conventional prior art, the vertical liquid reservoir 2 gets a higher liquid height under the same fluid volume, which increases the static pressure of the refrigerant in the vertical liquid reservoir, thus reduces pump cavitation. The central line of the pump 14 should be lower than the central of the vertical liquid reservoir 2.
Preferably, the liquid outlet component comprising a liquid supply pipe 15 coupled with a master liquid supply valve 16 so that to control flowing of the refrigerant. More preferably, a filtering apparatus is coupled on the liquid supply pipe 15 to filter the refrigerant.
Preferably, the air outlet end of the oil separator 6 is connected to the inlet end of the condenser by a first connecting pipe; the outlet end of the condenser is connected to the throttle valve 12 by a second connecting pipe; the second connecting pipe goes through the first connecting pipe, the vertical liquid reservoir 2 and the oil separator 6 sequentially. By adopting the above-described structure, the refrigeration system may be space-saving, volume-reduced and good-looking.
Preferably, a top end of the vertical liquid reservoir 2 has a refrigerant inlet, the refrigerant inlet is connected to a refrigerant inlet pipe, the refrigerant inlet pipe is mounted with a master check valve 1, which to satisfy the requirement to set the refrigeration system in the below floor under the artificial ice rink. Or otherwise, as described in the FIG. 3 or FIG. 4, the master check valve 1 is set downward to satisfy the requirement to set the refrigeration system at the same floor of the artificial ice rink. The refrigerant inlet pipe is sleeved on the liquid supply pipe 15, to be energy-saving by exchanging heats between the refrigerant inlet pipe and the liquid supply pipe 15. In this present embodiment, the refrigerant inlet pipe is sleeved on the liquid supply pipe 15. Of course, it is also energy-saving by sleeving the liquid supply pipe 15 on the refrigerant pipe.
Preferably, an exhaust valve 5 is coupled between the outlet end of the refrigeration compressor 3 and the inlet end of the oil separator 6 to control the flowing of the refrigerant vapor.
A liquid outlet end of the oil separator 6 is connected to the inlet end of the oil reservoir 7 by a third connecting pipe.
The refrigeration compressor is a refrigeration compressor with a built-in oil separator. The built-in oil separator separates the refrigeration and the lubrication preliminarily.
Specifically, the air outlet port of the vertical liquid reservoir is positioned above the liquid inlet port of the vertical liquid reservoir; a top end of the vertical liquid reservoir 2 has a refrigerant inlet. More specifically, the air outlet port of the vertical liquid reservoir is positioned below the refrigerant inlet. The refrigeration compressor, the oil separator and the oil reservoir are arranged from top to bottom sequentially.
Those skilled in the art could make various other changes and the corresponding deformation according to the aspect and conception described above. All such changes and deformation should fall within the scope of the application as claimed in claims.

Claims

1. An ice making machine set, comprising, a vertical liquid reservoir (2), which is vertically arranged and has a liquid inlet port and an air outlet port, a refrigeration compressor, an oil separator and an oil reservoir; a bottom end of the vertical liquid reservoir (2) has a liquid outlet port; the liquid inlet port of the vertical liquid reservoir and the air outlet port of the vertical liquid reservoir are both positioned above the liquid outlet port of the vertical liquid reservoir; an inhalation valve (8) is coupled between the air outlet port of the vertical liquid reservoir (2) and an inlet end of the refrigeration compressor (3); an outlet end of the refrigeration compressor (3) is used to connected to an inlet end of the oil separator (6); a liquid outlet end of the oil separator (6) is used to connect with an inlet end of the oil reservoir (7); a throttle valve (12) is coupled to the liquid inlet port of the vertical liquid reservoir (2); the ice making machine set further comprising a valve (13) which is to control opening and closing of the liquid outlet port of the vertical liquid reservoir (2).

2. The ice making set of claim 1, the air outlet port of the vertical liquid reservoir is positioned above the liquid inlet port of the vertical liquid reservoir, a top end of the vertical liquid reservoir (2) has a refrigerant inlet; the refrigeration compressor, the oil separator and the oil reservoir are arranged from top to bottom sequentially.

3. A refrigeration system, comprising, a vertical liquid reservoir, which is vertically arranged and has a liquid inlet port and an air outlet port, a refrigeration compressor, an oil separator, an oil reservoir and a condenser, a bottom end of the vertical liquid reservoir (2) has a liquid outlet port; the liquid inlet port of the vertical liquid reservoir and the air outlet port of the vertical liquid reservoir are both positioned above the liquid outlet port of the vertical liquid reservoir; an inhalation valve (8) is coupled between the air outlet port of the vertical liquid reservoir (2) and an inlet end of the refrigeration compressor (3); an outlet end of the refrigeration compressor (3) is to be connected to an inlet end of the oil separator (6); a liquid outlet end of the oil separator (6) is used to connect with an inlet end of the oil reservoir (7); an air outlet end of the oil separator (6) is used to connect with an inlet end of the condenser; a throttle valve (12) is coupled between an outlet of the condenser and the liquid inlet port of the vertical liquid reservoir (2); the refrigeration system further comprising a valve (13) which is to control opening and closing of the liquid outlet port of the vertical liquid reservoir (2).

4. The refrigeration system of claim 3, further comprising, a pump (14), the valve (13) is coupled between the liquid outlet port of vertical liquid reservoir and an inlet end of the pump (14); an outlet end of the pump (14) is coupled to a liquid outlet component.

5. The refrigeration system of claim 4, the liquid outlet component comprising a liquid supply pipe coupled with a liquid supply valve; a top end of the vertical liquid reservoir has a refrigerant inlet, the refrigerant inlet of the vertical liquid reservoir is connected to a refrigerant inlet pipe, the refrigerant inlet pipe is mounted with a master check valve, the refrigerant inlet pipe is sleeved on the liquid supply pipe.

6. The refrigeration system of claim 3, the air outlet end of the oil separator is connected to the inlet end of the condenser by a first connecting pipe; the outlet end of the condenser is connected to the throttle valve by a second connecting pipe; the second connecting pipe goes through the first connecting pipe, the vertical liquid reservoir and the oil separator sequentially.

7. The refrigeration system of claim 3, the liquid outlet end of the oil separator is connected to the inlet end of the oil reservoir by a third connecting pipe.

8. The refrigeration system of claim 3, an exhaust valve is coupled between an outlet end of the refrigeration compressor and an inlet end of the oil separator, the refrigeration compressor is a refrigeration compressor with a built-in oil separator.

9. The refrigeration system of claim 3, the air outlet port of the vertical liquid reservoir is positioned above the liquid inlet port of the vertical liquid reservoir, a top end of the vertical liquid reservoir has a refrigerant inlet; the refrigeration compressor, the oil separator and the oil reservoir are arranged from top to bottom sequentially.

10. The refrigeration system of claim 3, the throttle valve is used to cool the refrigerant and reduce the pressure.