CN218033800U

CN218033800U - Water-cooled refrigerating system

Info

Publication number: CN218033800U
Application number: CN202221829376.XU
Authority: CN
Inventors: 谢育龙; 李超
Original assignee: Xi'an Wenneng Microelectronics Technology Co ltd
Current assignee: Xi'an Wenneng Microelectronics Technology Co ltd
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2022-12-13
Anticipated expiration: 2032-07-15

Abstract

The utility model relates to an air conditioner field especially relates to a water-cooled refrigerating system. The refrigeration system comprises a compressor unit (1) comprising a gas compressor connected to the condenser unit by a line; the condenser unit consists of a plate heat exchanger (2), an adjustable pressure reducing and stabilizing valve (3) and an electronic flow control valve (4), wherein the adjustable pressure reducing and stabilizing valve (3) is arranged on a cold water inlet pipe of the plate heat exchanger (2), and the electronic flow control valve (4) is arranged on a cold water outlet pipe of the plate heat exchanger (2); the electronic flow control valve (4) is connected with the PID controller in a communication way; the extended pipeline of the plate heat exchanger (2) is connected with a liquid storage unit (6). Not only saves the labor cost, but also improves the temperature control precision of the system.

Description

Water-cooled refrigerating system

Technical Field

The utility model relates to an air conditioner field especially relates to a water-cooled refrigerating system.

Background

At present, on a water-cooled refrigerating system product, the refrigerant pressure of a condenser is mainly controlled by detecting the refrigerant pressure of the condenser by a pressure type water valve to control the cooling water quantity of the condenser so as to control the refrigerant pressure of the condenser. The pressure type water valve belongs to a pure mechanical structure, needs manual adjustment to a reasonable range, has a small flow adjustment range, has certain requirements on the experience of an operator, and can seriously influence the implementation of a high-precision refrigeration system once the reasonable range is not adjusted.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is that: in order to provide a water-cooled refrigeration system with better effect, the specific purpose is to see a plurality of substantial technical effects of the specific implementation part.

In order to achieve the purpose, the utility model adopts the following technical proposal:

the refrigeration system comprises a compressor unit 1, wherein the compressor unit comprises a gas compressor which is connected with the condenser unit through a pipeline; the condenser unit consists of a plate heat exchanger 2, an adjustable pressure reducing and stabilizing valve 3 and an electronic flow control valve 4, wherein the adjustable pressure reducing and stabilizing valve 3 is arranged on a cold water inlet pipe of the plate heat exchanger 2, and the electronic flow control valve 4 is arranged on a cold water outlet pipe of the plate heat exchanger 2; the electronic flow control valve 4 is communicatively connected to a PID controller.

The utility model discloses further technical scheme lies in, pressure sensor installs on the high pressure side pipeline in refrigerating system.

The utility model discloses a further technical scheme lies in, and the drier-filter unit comprises refrigerant molecular filter, has molecular sieve and filter screen among the refrigerant molecular filter, thereby can adsorb, filter clean refrigerant with moisture, metal powder and the dust that contains among the refrigerating system.

The utility model discloses further technical scheme lies in, and the evaporimeter unit is installed in the evaporation case, and evaporimeter front and back both sides face and left and right sides face seal, and gaseous follow the evaporimeter bottom flows to the top.

The utility model discloses a further technical scheme lie in, gas compressor be inverter compressor.

The utility model discloses a further technical scheme lies in, heating power bypass valve unit constitute by refrigerator heating power bypass valve, refrigerator heating power bypass valve is used for adjusting the refrigerating output of compressor, refrigerator heating power bypass valve installs the bypass pipeline of the high pressure side or the low pressure side in refrigerating system on.

The utility model discloses further technical scheme lies in, the PID controller can be based on the volume of opening and shutting of the data control electron flow control valve that pressure sensor gathered can play the refrigerant pressure of thereby controlling water-cooled condenser cooling water yield control condenser.

The utility model discloses a further technical scheme lie in, the PID controller constitute holistic system intelligent control unit.

The further technical proposal of the utility model is that the plate heat exchanger 2 extends out of a pipeline and is connected with a liquid storage device unit 6;

the extended pipeline of the compressor unit 1 is connected with a gas-liquid separator unit 11, the extended pipeline of the gas-liquid separator unit 11 is connected with an evaporator unit 10, and the extended pipeline of the evaporator unit 10 is connected with an electronic expansion valve unit 9 and a thermal bypass valve unit 12; the electronic expansion valve unit 9 extends out of the pipeline and is connected with the liquid sight glass unit 8 and the dry filter unit 7.

The utility model discloses a further technical scheme lies in, the PID controller is being connected through pressure sensor 5 communication in the 6 tops of reservoir unit.

Adopt above technical scheme the utility model discloses, for prior art have following beneficial effect: the electronic flow control valve can be used for controlling the cooling water quantity of the condenser so as to control the refrigerant pressure of the condenser, so that the labor cost is saved, and the temperature control precision of the system is improved.

Drawings

For further explanation of the present invention, reference is made to the following description taken in conjunction with the accompanying drawings:

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

wherein: 1. a compressor unit; 2. a plate heat exchanger; 3. an adjustable pressure reducing and stabilizing valve; 4. an electronic flow control valve; 5. a pressure sensor; 6. a reservoir unit; 7. a dry filter unit; 8. a liquid-viewing mirror unit; 9. an electronic expansion valve unit; 10. an evaporator unit; 11. a gas-liquid separator unit; 12. a thermal bypass valve unit; 13. and a system intelligent control unit.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and embodiments, which are to be understood as illustrative only and not limiting the scope of the invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The patent provides a plurality of parallel schemes, and different expressions belong to an improved scheme based on a basic scheme or a parallel scheme. Each solution has its own unique features. Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

The compressor unit, the main part is the compressor, and this compressor links to each other through the pipeline with plate heat exchanger, and the compressor is responsible for compressed air, compresses into high temperature high pressure gas with the air.

Furthermore, the condenser unit comprises elements such as a plate heat exchanger, an adjustable pressure reducing and stabilizing valve, an electronic flow control valve unit and the like. The plate heat exchanger condenses the high-temperature and high-pressure gas generated by the gas compressor unit into liquid, and the adjustable pressure reducing and stabilizing valve adjusts the pressure of a water source flowing into the plate heat exchanger, so that the pressure of the water source flowing into the plate heat exchanger is constant. The electronic flow control valve unit comprises elements such as an electronic flow control valve, a pressure sensor, a PID controller and the like. The electronic flow control valve consists of a motor, a speed reducer and a valve body; the motor provides power for the electronic flow control valve; the speed reducer reduces the speed of the motor, improves the torque of the motor and increases the adjusting precision of the electronic flow control valve; the valve body is a needle valve or other structures and plays a role in making and breaking media. The pressure sensor is arranged on a high-pressure side pipeline in the refrigeration system and provides a pressure value of the refrigeration system on the high-pressure side of the refrigeration system for the PID controller. And the PID controller controls the opening and closing amount of the electronic flow control valve according to the data collected by the pressure sensor, and controls the cooling water amount of the water-cooled condenser so as to control the refrigerant pressure of the condenser.

Further, the liquid storage device unit mainly comprises a refrigerator liquid storage tank, low-temperature condensed liquid generated by the condenser unit is stored, the load of the condenser is reduced, and the phenomenon that condensate is accumulated in the condenser too much to reduce the heat transfer area so as to influence the heat transfer effect of the condenser is avoided.

Furthermore, the drying filter unit mainly comprises a refrigerant molecular filter and is mainly used for absorbing moisture and filtering impurities. The drying filter is provided with a molecular sieve and a filter screen, and can adsorb and filter water, metal powder and dust contained in the refrigerating system so as to clean the refrigerant.

Furthermore, the liquid viewing mirror unit mainly comprises a refrigerant liquid viewing mirror, and is used for observing the phase state of the refrigerant and determining whether the system has a problem.

Furthermore, the electronic expansion valve unit is composed of an electronic expansion valve, and throttles and reduces the pressure of the cooled liquid high-pressure refrigerant to reduce the pressure and the temperature of the refrigerant, so that the electronic expansion valve unit is prepared for evaporation and heat absorption of the refrigerant in the evaporator.

Furthermore, the evaporator unit is arranged in the evaporation box, the front side surface, the rear side surface, the left side surface and the right side surface of the evaporator are closed, gas flows from the bottom to the top of the evaporator, low-temperature and low-pressure liquid generated by the electronic expansion valve unit is exchanged with air entering the evaporation box through the evaporator, and the low-temperature and low-pressure liquid is gasified to absorb heat, so that the purposes of cooling and dehumidifying the air are achieved, and the gas with the temperature lower than the required value and after dehumidification is obtained.

Furthermore, the gas-liquid separator unit mainly comprises a refrigerator gas-liquid separator, stores partial refrigerant in the system and prevents the compressor oil from being diluted due to liquid impact of the compressor and excessive refrigerant. The gas-liquid separator should also be able to deliver enough refrigerant and oil back to the compressor to maintain the operating efficiency of the system and the oil level in the crankcase.

Furthermore, the thermal bypass valve unit mainly comprises a refrigerating machine thermal bypass valve and is used for adjusting the refrigerating capacity of the compressor to be adaptive to the load of the evaporator. The hot gas at the high pressure side is sent to the low pressure side through the bypass pipeline to replace part of the load. So that the suction pressure of the compressor does not fall below the lowest limit value.

And the system intelligent control unit controls the whole system to run stably.

Compared with the prior art, the beneficial results of the utility model are that:

and (I), the temperature of the refrigerating system is finely controlled.

And (II) the automation of the product is improved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, all of which are intended to be covered by the appended claims.

Claims

1. A water-cooled refrigeration system, characterized in that the refrigeration system comprises a compressor unit (1) comprising a gas compressor connected to said condenser unit by a line; the condenser unit consists of a plate heat exchanger (2), an adjustable pressure reducing and stabilizing valve (3) and an electronic flow control valve (4), wherein the adjustable pressure reducing and stabilizing valve (3) is arranged on a cold water inlet pipe of the plate heat exchanger (2), and the electronic flow control valve (4) is arranged on a cold water outlet pipe of the plate heat exchanger (2); the electronic flow control valve (4) is connected with the PID controller in a communication way.

2. The water-cooled refrigeration system according to claim 1, wherein the pressure sensor is installed on a high-pressure side pipe in the refrigeration system.

3. The water-cooled refrigerating system according to claim 1, wherein the dry filter unit is composed of a refrigerant molecular filter, and the refrigerant molecular filter has a molecular sieve and a filter net therein, and can adsorb and filter moisture, metal powder and dust contained in the refrigerating system to clean the refrigerant.

4. The water-cooled refrigerating system according to claim 1, wherein the evaporator unit is installed in the evaporator tank, both front and rear sides and both left and right sides of the evaporator are closed, and the gas flows from the bottom to the top of said evaporator.

5. The water-cooled refrigeration system according to claim 1, wherein the gas compressor is a variable frequency compressor.

6. The water-cooled refrigerating system according to claim 1, wherein the thermal bypass valve unit is comprised of a refrigerator thermal bypass valve for adjusting a refrigerating capacity of the compressor, and the refrigerator thermal bypass valve is installed in a bypass line at a high pressure side or a low pressure side in the refrigerating system.

7. The water-cooled refrigerating system according to claim 1, wherein the PID controller controls the opening and closing amount of the electronic flow control valve according to the data collected by the pressure sensor, and controls the amount of cooling water in the water-cooled condenser to control the pressure of the refrigerant in the condenser.

8. The water-cooled refrigerating system according to claim 1, wherein said PID controller constitutes an integrated system intelligent control unit.

9. The water-cooled refrigeration system according to claim 1, wherein the plate heat exchanger (2) is connected to the accumulator unit (6) by a protruding pipe;

the extended pipeline of the compressor unit (1) is connected with a gas-liquid separator unit (11), the extended pipeline of the gas-liquid separator unit (11) is connected with an evaporator unit (10), and the extended pipeline of the evaporator unit (10) is connected with an electronic expansion valve unit (9) and a thermal bypass valve unit (12); the electronic expansion valve unit (9) extends out of the pipeline and is connected with the liquid sight glass unit (8) and the dry filter unit (7).

10. The water-cooled refrigeration system according to claim 9, wherein the PID controller is communicatively connected above the accumulator unit (6) by means of a pressure sensor (5).