CN217876536U

CN217876536U - High-precision cooling water temperature control device

Info

Publication number: CN217876536U
Application number: CN202221102546.4U
Authority: CN
Inventors: 陈耿锋; 彭紫坤; 莫振康
Original assignee: Shenzhen Doluyo Industrial Co ltd
Current assignee: Shenzhen Doluyo Industrial Co ltd
Priority date: 2022-05-09
Filing date: 2022-05-09
Publication date: 2022-11-22
Anticipated expiration: 2032-05-09

Abstract

The utility model discloses a high-precision cooling water temperature control device, which belongs to the technical field of cooling water temperature control, and comprises a case bottom plate, wherein the left side and the right side of the case bottom plate are symmetrically provided with side plates, the front side and the back side of the case bottom plate are symmetrically provided with panels, the panels and the side plates surround into a rectangle, the case bottom plate is provided with a refrigeration compressor, the left side of the refrigeration compressor is provided with a circulating water pump, the upper part of the circulating water pump is connected with a water tank through a water pipe, a stainless steel coil pipe is arranged in the water tank, one side of the water tank is fixedly connected with the panels, the refrigeration compressor is connected with the water tank through an external circulating pump, and the refrigeration compressor is connected with an air-cooled condenser; the utility model adopts the high-temperature high-pressure refrigerant to heat the cooling water for the stainless steel coil in the water tank, the heating effect is efficient and uniform, and the temperature control precision of the cooling water system is favorably improved; simultaneously the utility model discloses energy-concerving and environment-protective, need not install the electrothermal tube and just can reach the purpose that the cooling water heaied up, fail safe nature is high.

Description

High-precision cooling water temperature control device

Technical Field

The utility model relates to a cooling water temperature control technical field, concretely relates to high accuracy cooling water temperature regulating device.

Background

With the rapid development of ultrafast lasers, ultrafast laser micromachining has been widely applied in the fields of microfabrication of consumer electronic components, refined circuits, thin film cutting, fragile materials, biomedical science, and the like. Because the ultrafast laser micromachining precision is high, the temperature control precision of a matched water chiller is required to reach +/-0.1 ℃. The working principle of the high-precision laser water chiller on the current market is basically as follows: the cooling water is cooled down through vapor compression refrigeration, then an electric heating pipe is additionally arranged at the outlet of the water cooler to heat the cooling water, and the electric heating pipe is controlled through a PID algorithm, so that the effect of adjusting the water temperature precision is achieved. The temperature control type of additionally installing the electric heating pipe at the cooling water outlet has the following defects: firstly, the electric heating tube has potential safety hazards, such as short circuit of a relay, easy circuit burnout and even fire; secondly, the energy-saving and environment-friendly idea advocated by the state is not met, cooling water is cooled through the steam compression type refrigeration, and is heated through the electric heating pipe, so that energy is wasted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high accuracy cooling water temperature regulating device for solve the problem that faces among the above-mentioned background art.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a high accuracy cooling water temperature control device, includes quick-witted case bottom plate, quick-witted case bottom plate's left and right sides symmetry is equipped with the curb plate, quick-witted case bottom plate's front and back bilateral symmetry is equipped with the panel, the panel encloses into the rectangle with the curb plate, be equipped with a compressor on the quick-witted case bottom plate, compressor's left side is equipped with circulating water pump, circulating water pump's top has the water tank through water piping connection, be provided with stainless steel coil pipe in the water tank, one side and panel fixed connection of water tank, compressor passes through external circulating pump and is connected with the water tank, the last air-cooled condenser that is connected with of compressor, air-cooled condenser's one end has the desicator through the pipe connection, be connected with the capillary on the desicator, the one end of capillary is connected with the refrigeration solenoid valve, the refrigeration solenoid valve passes through the pipeline and is connected with the water tank.

Furthermore, the other end of the air-cooled condenser is connected with a bypass electromagnetic valve through a pipeline, and the bypass electromagnetic valve is connected with the water tank through a pipeline.

Furthermore, a drain outlet is arranged on the water tank, and a valve is arranged on the drain outlet.

Furthermore, a plurality of ventilation openings are formed in a panel on one side of the air-cooled condenser, and a controller is arranged above the ventilation openings.

Furthermore, a cover plate is arranged on the top of the panel and the top of the side plate, an electric fan is arranged on the cover plate, and the electric fan is connected with the air-cooled condenser.

The utility model has the advantages that:

the utility model adopts the high-temperature high-pressure refrigerant to heat the cooling water for the stainless steel coil in the water tank, the heating effect is efficient and uniform, and the temperature control precision of the cooling water system is favorably improved; simultaneously the utility model discloses energy-concerving and environment-protective, need not install the electrothermal tube and just can reach the purpose that the cooling water heaies up, fail safe nature is high, has avoided the relay short circuit that exists of installation electrothermal tube, arouses the circuit to burn out, arouses the risk of conflagration even.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts;

fig. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a schematic view of the overall structure of the present invention;

fig. 3 is a flow chart of the present invention.

The reference numbers in the figures illustrate:

1. a refrigeration compressor; 2. an air-cooled condenser; 3. a bypass solenoid valve; 4. a capillary tube; 5. a water tank; 6. A water circulating pump; 7. a chassis base plate; 8. a panel; 9. a sewage draining outlet; 10. a valve; 11. a vent; 12. A side plate; 13. a cover plate; 14. a dryer; 15. a refrigeration solenoid valve; 16. an electric fan; 17. and a controller.

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

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc. indicate an orientation or positional relationship only for the convenience of description of the present invention and to simplify the description, and do not indicate or imply that the component or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

A high-precision cooling water temperature control device is shown in figures 1 and 2 and comprises a chassis base plate 7, side plates 12 are symmetrically arranged on the left side and the right side of the chassis base plate 7, panels 8 are symmetrically arranged on the front side and the rear side of the chassis base plate 7, the panels 8 and the side plates 12 surround a rectangle, a cover plate 13 is arranged on the tops of the panels 8 and the side plates 12, an electric fan 16 is arranged on the cover plate 13, the electric fan 16 is connected with an air-cooled condenser 2, the panels 8, the side plates 12 and the cover plate 13 form a box body to well protect components inside the chassis, a refrigeration compressor 1 is arranged on the chassis base plate 7, a circulating water pump 6 is arranged on the left side of the refrigeration compressor 1, a water tank 5 is connected above the circulating water pump 6 through a water pipe, a stainless steel coil pipe is arranged in the water tank 5, one side and panel 8 fixed connection of water tank 5, compressor 1 is connected with water tank 5 through the external circulating pump, compressor 1 is last to be connected with an air-cooled condenser 2, the one end of air-cooled condenser 2 has desicator 14 through the pipe connection, be connected with capillary 4 on the desicator 14, the one end of capillary 4 is connected with refrigeration solenoid valve 15, refrigeration solenoid valve 15 is connected with water tank 5 through the pipeline, there is bypass solenoid valve 3 through the pipe connection on the other end of air-cooled condenser 2, bypass solenoid valve 3 is connected with water tank 5 through the pipeline, water tank 5 has been connected between the solenoid valve through the pipeline, make water tank 5 and compressor 1 form the closed loop, just with the intensification and the cooling of high accuracy cooling water, but accurate accuse temperature. Be equipped with drain 9 on the water tank 5, be equipped with valve 10 on the drain 9, the quality of water in the water tank 5 can be regularly changed to drain 9, be located and be equipped with a plurality of vents 11 on the panel 8 of air-cooled condenser 2 one side, the top of vent 11 is equipped with controller 17, vent 11 can dispel the heat the protection to the air-cooled condenser 2 of incasement and compressor 1, increase of service life, controller 17 is used for the various electrical parts of control machine incasement, the intelligent operation of being convenient for.

As shown in fig. 3, if the high-precision cooling water needs to be cooled, the working process is as follows: the low-temperature low-pressure refrigerant gas is compressed by the isentropic of the refrigeration compressor 1 to become high-temperature high-pressure gas, then enters the air-cooled condenser 2 to be cooled into normal-temperature high-pressure liquid, flows through the copper drying filter 14 to be filtered and dried, enters the capillary tube 4 to be pinched by isenthalpic throttling to become low-temperature low-pressure liquid, then opens the refrigeration electromagnetic valve 15, enters the stainless steel coil tube arranged in the water tank 5 to be subjected to heat exchange with cooling water in the water tank to become low-temperature low-pressure gas, and finally is absorbed to the refrigeration compressor 1 to finish a refrigeration cycle.

If the high-precision cooling water needs to be heated, the working process is as follows: the low-temperature low-pressure refrigerant gas is compressed by the isentropic of the refrigeration compressor 1 and then is changed into high-temperature high-pressure gas, the bypass electromagnetic valve 3 is opened, the gas enters a stainless steel coil pipe arranged in the water tank 5, the gas is subjected to heat exchange with cooling water in the water tank and then is changed into gas-liquid mixed refrigerant, and the gas-liquid mixed refrigerant is absorbed by a gas-liquid separator and returns to the refrigeration compressor 1 to complete hot gas bypass circulation.

When the water temperature precision of the high-precision cooling water is controlled, the working process is as follows: when the bypass solenoid valve 3 is closed and the refrigeration solenoid valve 15 is opened, the temperature of the cooling water is lowered, and when the bypass solenoid valve 3 is opened and the refrigeration solenoid valve 15 is closed, the temperature of the cooling water is raised. The cooling water temperature precision is adjusted according to the opening and closing of the refrigeration electromagnetic valve 15 and the bypass electromagnetic valve 3, and can be specifically operated through the controller 17, and the actions of the two electromagnetic valves are opposite, so that the high-precision temperature control can be realized only by calculating the valve opening time of the bypass electromagnetic valve 3 according to a PID algorithm on the controller 17.

In the description of the present specification, reference to the description of "one embodiment," "an example," "a specific example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. The utility model provides a high accuracy cooling water temperature control device, includes chassis base plate (7), its characterized in that, the left and right sides symmetry of chassis base plate (7) is equipped with curb plate (12), chassis base plate (7) front and back bilateral symmetry is equipped with panel (8), panel (8) enclose into the rectangle with curb plate (12), be equipped with a compressor (1) on chassis base plate (7), the left side of compressor (1) is equipped with circulating water pump (6), there are water tank (5) top of circulating water pump (6) through the water piping connection, be provided with stainless steel coil pipe in water tank (5), one side and panel (8) fixed connection of water tank (5), compressor (1) is connected with water tank (5) through the external circulating pump, be connected with an air-cooled condenser (2) on compressor (1), there is desicator (14) through the pipe connection in the one end of air-cooled condenser (2), be connected with capillary (4) on desicator (14), the one end of capillary (4) is connected with refrigeration solenoid valve (15), refrigeration solenoid valve (15) are connected with water tank (5) through the pipeline.

2. The high-precision cooling water temperature control device according to claim 1, wherein a bypass electromagnetic valve (3) is connected to the other end of the air-cooled condenser (2) through a pipeline, and the bypass electromagnetic valve (3) is connected to the water tank (5) through a pipeline.

3. The high-precision cooling water temperature control device according to claim 1, wherein a drain outlet (9) is arranged on the water tank (5), and a valve (10) is arranged on the drain outlet (9).

4. A high precision cooling water temperature control device according to claim 1, characterized in that a plurality of ventilation openings (11) are provided on the panel (8) on one side of the air-cooled condenser (2), and a controller (17) is provided above the ventilation openings (11).

5. A high precision cooling water temperature control device according to claim 1, characterized in that a cover plate (13) is arranged on the top of the panel (8) and the side plate (12), an electric fan (16) is arranged on the cover plate (13), and the electric fan (16) is connected with the air-cooled condenser (2).