CN208652964U - A kind of freezing machine set system - Google Patents
A kind of freezing machine set system Download PDFInfo
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- CN208652964U CN208652964U CN201821286445.0U CN201821286445U CN208652964U CN 208652964 U CN208652964 U CN 208652964U CN 201821286445 U CN201821286445 U CN 201821286445U CN 208652964 U CN208652964 U CN 208652964U
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- cooler
- compressor
- heat exchanger
- refrigerant
- gas phase
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Abstract
The utility model discloses a kind of freezing machine set systems, belong to chemical equipment technical field.The freezing machine set system of the utility model includes being sequentially connected to connect the flash tank to form loop, compressor, water cooler, gas phase cooler, refrigerant collecting tank, liquid phase cooler, economizer heat exchanger and user terminal heat exchanger；The position setting of gas phase cooler is higher than refrigerant collecting tank.The utility model increases gas phase cooler after water cooler and cools down to system, it is cooling that it will not be water cooled the cooling gas refrigerant of device, to by reducing compressor delivery pressure, achieve the purpose that reduce energy consumption of compressor and improves its stability, and increases liquid phase heat exchanger before economizer heat exchanger, the temperature of liquid refrigerant is reduced, to reduce the refrigerant consumption of downstream user and be recycled back to the amount of the refrigerant of compressor, the load for further decreasing compressor improves its stability.
Description
Technical field
The utility model relates to a kind of freezing machine set systems, belong to chemical equipment technical field.
Background technique
The conventional group of freezing train unit becomes compressor, water cooler, refrigerant collecting tank, economizer heat exchanger, sudden strain of a muscle at present
Steaming pot.When environment temperature is higher, cooling water temperature is gradually risen, and water cooler cannot remove enough heats, compressor outlet
Gas cannot be cooled to sufficiently low temperature, the saturated vapor pressure of refrigerant gradually rises, i.e., compressor delivery pressure by
Cumulative big, the energy consumption of compressor also will be increasing, and the risk of equipment damage also increases with it.Also, work as refrigerant collecting tank
When middle refrigerant temperature is higher, the amount for being back to the refrigerant of compressor by economizer heat exchanger is larger, the operating load of compressor
Also larger.
Utility model content
To solve the above problems, the utility model on the basis of prior art, increases gas phase after water cooler
Cooler carries out secondary cooling to system using a small amount of chilled water, will not be water cooled the cooling gas refrigerant cooling of device, thus
It exchanges heat by reducing compressor delivery pressure, achieving the purpose that reduce energy consumption of compressor and improving its stability, and in economy
Increase liquid phase heat exchanger before device, the temperature of liquid refrigerant is further decreased using chilled water, to reduce into compressor
Refrigerant amount, further decrease the load of compressor, improve its stability.
First purpose of the utility model is to provide a kind of freezing machine set system, including flash tank, compressor, water cooling
Device, gas phase cooler, refrigerant collecting tank, liquid phase cooler, economizer heat exchanger and user terminal heat exchanger, the flash tank, pressure
Contracting machine, water cooler, gas phase cooler, refrigerant collecting tank, liquid phase cooler, economizer heat exchanger and user terminal heat exchanger successively into
Row connection, the user terminal heat exchanger exit and flash tank entrance are attached to form circulation；The economizer heat exchanger includes the
One entrance, second entrance, first outlet and second outlet, the first entrance are connected with the outlet of liquid phase cooler, and first
Outlet is connected with user terminal heat exchanger, and second entrance is connected with the pipeline of first outlet, and second outlet is connected with compressor
It connects；The position setting of the gas phase cooler is higher than refrigerant collecting tank.
In a kind of embodiment of the utility model, the gas phase cooler is vertical tube-type cooler or horizontal column
Chimney cooler.
In a kind of embodiment of the utility model, chilled water is housed in the gas phase cooler.
In a kind of embodiment of the utility model, the liquid phase cooler is horizontal shell and tube cooler.
In a kind of embodiment of the utility model, chilled water is housed in the liquid phase cooler.
In a kind of embodiment of the utility model, the temperature of the chilled water is -10~10 DEG C.
The utility model has the beneficial effects that the utility model increases gas phase cooler using a small amount of freezing after water cooler
Water carries out secondary cooling to system, and it is cooling will not to be water cooled the cooling gas refrigerant of device, thus by reducing compressor outlet
Pressure achievees the purpose that reduce energy consumption of compressor and improves its stability, and increases liquid phase heat exchange before economizer heat exchanger
Device, the temperature of liquid refrigerant is further decreased using chilled water, to reduce the amount into the refrigerant of compressor, further
The load for reducing compressor, improves its stability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the utility model freezes unit；
Wherein, 1, flash tank, 2, compressor, 3, water cooler, 4, gas phase cooler, 5, refrigerant collecting tank, 6, liquid phase it is cold
But device, 7, economizer heat exchanger, 8, user terminal heat exchanger.
Specific embodiment
The essence of utility model in order to better understand is described in detail in the technology of utility model below by embodiment
Hold.
Embodiment 1:
In conjunction with attached drawing 1, the freezing unit circulatory system of the utility model, including flash tank 1, compressor 2, water cooler 3, gas
Phase cooler 4, refrigerant collecting tank 5, liquid phase cooler 6, economizer heat exchanger 7 and user terminal heat exchanger 8, flash tank 1, compressor
2, water cooler 3, gas phase cooler 4, refrigerant collecting tank 5, liquid phase cooler 6, economizer heat exchanger 7 and user terminal heat exchanger 8 according to
Secondary to be attached, the outlet of user terminal heat exchanger 8 is attached with 1 entrance of flash tank；Economizer heat exchanger 7 includes first entrance 9, the
Two entrances 12, first outlet 11 and second outlet 10, the first entrance 9 are connected with the outlet of liquid phase cooler 6, first outlet
11 are connected with user terminal heat exchanger 8, and second entrance 12 is connected with the pipeline of first outlet 11, cooling for refluxing portion
Liquid refrigerant, which is used to flash, reduces the liquid refrigerant that first entrance enters, and second outlet 10 is connected with compressor 2, will be through
The gaseous refrigerant generated in Ji heat exchanger 7, which is transported in compressor, to be compressed；The position of the gas phase cooler 4 is arranged high
In refrigerant collecting tank 5.
In the process of running, liquid refrigerant is further cooled down by liquid phase cooler, few then by economizer heat exchanger
Amount is evaporated to gas and enters compressor, most of to enter user terminal heat exchanger in liquid form, after exchanging heat at user, gaseous state system
Cryogen, which is collected, enters flash tank, and then gaseous refrigerant enters compressor, and gaseous refrigerant is high temperature and pressure through compressor compresses
Gaseous refrigerant, the gaseous refrigerant of high temperature and pressure condensed by water cooler, and some refrigerant is cooled to liquid, not by
Cooling gas is further cooled to liquid by gas phase cooler, is returned in refrigerant collecting tank by gravity.
Embodiment by use R-507 for the freezing unit of refrigerant for, the utility model is described in further detail.
When environment temperature is higher, cooling water temperature is increased, and opereating specification reaches 32~40 DEG C, and compressor goes out at this time
Compressor outlet gas can be cooled between 45~52 DEG C by saliva cooler, and outlet temperature changes with equipment operating load
And change；Compressor delivery pressure is between 2.0~2.5MPa at this time；
Between water cooler and refrigerant collecting tank, a gas phase cooler of connecting will not using -10~10 DEG C of cooling waters
It is water cooled the cooling R-507 gas cooling of device, R-507 liquid after cooling flows into refrigerant collecting tank by gravity；Compressor
Outlet pressure is gradually decrease to 1.2~1.7Mpa, and fluid temperature is gradually decrease to 24~36 DEG C in collecting tank；
In refrigerant collecting tank and economizer heat exchanger, a liquid phase cooler of connecting will using -10~10 DEG C of chilled water
R-507 liquid in refrigerant collecting tank is cooled further to 10~20 DEG C, so that reducing economizer heat exchanger is back to compressor
Amount, the operating load of compressor is reduced, to reduce energy consumption.
For the utility model between water cooler and refrigerant collecting tank, a gas phase cooler of connecting overcomes cooling water water
The warm high influence to compressor delivery pressure, by the cooling temperature for reducing compressor outlet gas, reaching, which reduces compressor, goes out
The purpose of mouth pressure.With the reduction of compressor pressure ratios, the energy consumption of compressor is greatly lowered.Using a small amount of chilled water to system
Liquid in cryogen collecting tank further cools down, and can reduce the flow that economizer heat exchanger is recycled back to compressor, to reduce pressure
The load and energy consumption of contracting machine.With the reduction of compressor delivery pressure, the stability of compressor can be increased substantially.
Embodiment described above is only preferred embodiments for fully illustrating the utility model, the utility model
Protection scope it is without being limited thereto.Those skilled in the art made equivalent substitute or change on the basis of the utility model
It changes, both is within the protection scope of the present invention.The protection scope of the utility model is subject to claims.
Claims (6)
1. a kind of freezing machine set system, which is characterized in that including flash tank, compressor, water cooler, gas phase cooler, refrigerant
Collecting tank, liquid phase cooler, economizer heat exchanger and user terminal heat exchanger, the flash tank, compressor, water cooler, gas phase are cooling
Device, refrigerant collecting tank, liquid phase cooler, economizer heat exchanger and user terminal heat exchanger are successively attached, and the user terminal changes
Hot device outlet is attached with flash tank entrance；The economizer heat exchanger includes first entrance, second entrance, first outlet and
Two outlets, the first entrance are connected with the outlet of liquid phase cooler, and first outlet is connected with user terminal heat exchanger, and second
Entrance is connected with the pipeline of first outlet, and second outlet is connected with compressor；The position of the gas phase cooler is arranged high
In refrigerant collecting tank.
2. freezing machine set system according to claim 1, which is characterized in that the gas phase cooler is that vertical tube-type is cold
But device or horizontal shell and tube cooler.
3. freezing machine set system according to claim 2, which is characterized in that chilled water is housed in the gas phase cooler.
4. freezing machine set system according to claim 1, which is characterized in that the liquid phase cooler is horizontal tube type cold
But device.
5. freezing machine set system according to claim 4, which is characterized in that chilled water is housed in the liquid phase cooler.
6. according to the described in any item freezing machine set systems of claim 3 or 5, which is characterized in that the temperature of the chilled water be-
10~10 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821286445.0U CN208652964U (en) | 2018-08-10 | 2018-08-10 | A kind of freezing machine set system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821286445.0U CN208652964U (en) | 2018-08-10 | 2018-08-10 | A kind of freezing machine set system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208652964U true CN208652964U (en) | 2019-03-26 |
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ID=65789429
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821286445.0U Active CN208652964U (en) | 2018-08-10 | 2018-08-10 | A kind of freezing machine set system |
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| CN (1) | CN208652964U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731291A (en) * | 2018-08-10 | 2018-11-02 | 中化蓝天霍尼韦尔新材料有限公司 | A method of it freezing machine set system and reduces its energy consumption and improve its stability |
-
2018
- 2018-08-10 CN CN201821286445.0U patent/CN208652964U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731291A (en) * | 2018-08-10 | 2018-11-02 | 中化蓝天霍尼韦尔新材料有限公司 | A method of it freezing machine set system and reduces its energy consumption and improve its stability |
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