CN212870293U - Cooling water circulator - Google Patents

Abstract

The utility model discloses a cooling water circulator, which comprises a shell, wherein the top of the shell is provided with a dual PID controller which is electrically connected with a liquid crystal display screen; the inside of the condenser is fixedly provided with a compressor, a high pressure gauge, a condenser, a drying filter, an evaporator and a low pressure gauge which are connected in sequence through pipelines to form a loop; a cold water return pipe and a cold water outlet pipe are connected to the side wall of the evaporator, and a circulating pump is installed on the cold water outlet pipe; a supplementary water source is also communicated with the side wall of the evaporator; the compressor, the condenser, the evaporator and the circulating pump are all electrically connected with the dual PID controller; the inner wall of the condensation pipe in the condenser is provided with a plurality of layers of water condensation nets. The utility model provides a cooling water circulator adopts refrigerant flow control and the dual accuse temperature technique of PID, under the control of singlechip, can in time trail the change of ambient temperature change and thermal load, reaches the purpose of accurate accuse temperature, makes it water conservation effect obvious through setting up of congealing the water net simultaneously.

Description

Cooling water circulator

Technical Field

The utility model relates to a cooling arrangement technical field, more specifically the utility model relates to a cooling water circulator that says so.

Background

The cooling water circulator is also named as a small-sized water chiller, is also used for refrigerating through a compressor, then exchanges heat with water to reduce the temperature of the water, is sent out through a circulating pump, and simultaneously controls the temperature through a temperature controller, has three functions of constant temperature, constant flow and constant pressure, and is widely applied to scientific instruments for matching use.

The evaporator, the condenser, the compressor and the expansion valve are key components, the evaporator is an important component in four refrigeration parts, low-temperature condensed liquid passes through the evaporator and exchanges heat with external air, and the evaporator is gasified to absorb heat to achieve the refrigeration effect. The condenser is capable of converting a gas or vapor into a liquid to transfer heat from the tubes to the air adjacent the tubes in a rapid manner. The condenser operation is exothermic and therefore the condenser temperature is high. The compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas, and is the heart of a refrigeration system. The refrigerating cycle is powered by sucking low-temperature and low-pressure refrigerant gas from the air suction pipe, driving the piston to compress the refrigerant gas through the operation of the motor, and discharging high-temperature and high-pressure refrigerant gas to the exhaust pipe. An expansion valve is an important component in a refrigeration system and is typically mounted between the reservoir and the evaporator. The expansion valve enables the medium-temperature high-pressure liquid refrigerant to be low-temperature low-pressure wet steam through throttling, then the refrigerant absorbs heat in the evaporator to achieve the refrigeration effect, and the expansion valve controls the flow of the valve through the change of the superheat degree of the tail end of the evaporator to prevent the phenomena of insufficient utilization of the area of the evaporator and cylinder knocking.

The cooling water circulator has wide application range, such as analytical instruments including spectrometer, mass spectrometer, viscometer, polarimeter, fermentation device and rotary evaporator; vacuum obtaining and medical treatment, including molecular pump, diffusion pump, cooling blanket, X-ray machine, nuclear magnetic resonance and accelerator; and industrial equipment, laser equipment, vacuum coating equipment, biopharmaceuticals, molds, machine tools, welding machines and reaction kettles.

At present, the existing cooling water circulator has inaccurate temperature control after long-time use and poor cooling effect, and the water saving mode of the existing cooling water circulator mainly comprises blowing loss and pollution discharge loss, and the blowing loss is controlled and reduced by measures such as additionally arranging a high-efficiency water collector and the like; for the pollution discharge loss, the pollution discharge loss is generally controlled and reduced by improving the concentration ratio of the circulating cooling water, the operation of improving the concentration ratio is an accepted effective water-saving method at present, but along with the improvement of the concentration ratio, the scaling and corrosion factors of the circulator are also increased in multiples, so that most of evaporation water consumption of the water loss of the cooling water circulator is caused.

Therefore, how to provide a cooling water circulator with precise temperature control and good water saving effect is a problem that needs to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a cooling water circulator adopts refrigerant flow control and the dual accuse temperature technique of PID, under the control of singlechip, can in time trail the change of ambient temperature change and thermal load, reaches the purpose of accurate accuse temperature.

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

a cooling water circulator comprises a shell, wherein a dual PID controller is installed at the top of the shell and electrically connected with a liquid crystal display screen; the inside of the evaporator is fixedly provided with a compressor, a high pressure gauge, a condenser, a drying filter, an evaporator and a low pressure gauge which are sequentially connected through a pipeline to form a loop; a cold water return pipe and a cold water outlet pipe are connected to the side wall of the evaporator, and a circulating pump is mounted on the cold water outlet pipe; a supplementary water source is also communicated with the side wall of the evaporator; the compressor, the condenser, the evaporator and the circulating pump are all electrically connected with the dual PID controller; be equipped with the multilayer on the inner wall of condenser pipe in the condenser and condense the water net, it is located for being provided with on same horizontal plane to condense the water net condenser pipe radial direction is last, both ends with the connecting rod that the condenser pipe inner wall links to each other, one deck condense the water net the connecting rod has three equant circumference to arrange on same horizontal plane, one deck the connecting rod of condensing the water net and the connecting rod staggered arrangement of adjacent condensing the water net, evenly be provided with on the connecting rod and condense the water ball.

The utility model discloses a cooling water circulator, which can track the environmental temperature change and the heat load change in time by controlling the temperature through a dual PID controller, thereby achieving the purpose of accurate temperature control; meanwhile, a large-screen liquid crystal display screen is adopted to display real-time Chinese characters, Chinese characters and numbers, the characters are large, uniform and elegant, and clear at a glance; and, be provided with in the condenser pipe and install the ball that condenses on the connecting rod and constitute the condensation net, contact with the ball that condenses in every condenser pipe, increased the area of contact of steam with the pipeline, reduced the velocity of flow of vapor in the pipeline, the steam condenses in the pipeline and produces a large amount of comdenstions water, and the comdenstion water is carried back to cold water circulator. The utility model has the advantages of reasonable design, simple structure, convenient use, energy conservation, low cost and the like, and enhances the water-saving effect of the condenser.

Preferably, a water level sensor is arranged on the evaporator, and the water level sensor is electrically connected with the dual PID controller. And a water level alarm is also arranged on the evaporator and is electrically connected with the dual PID controller.

Adopt above-mentioned technical scheme's beneficial effect is that, when the water level was not enough, water temperature sensor detected the water level not enough, then given dual PID controller with water level signal transmission, and dual PID controller control water level alarm is reported to the police, reminds the operator to add the water yield in order to guarantee normal work.

Preferably, an angle valve is installed between the condenser and the dry filter.

Adopt above-mentioned technical scheme's beneficial effect be, can the size of flow control through the setting of angle valve.

Preferably, a perforated plate is attached to a bottom of the side end surface of the housing.

Adopt above-mentioned technical scheme's beneficial effect is, through the installation perforated plate, the casing of being convenient for is linked together with the external world, is favorable to the heat dissipation of equipment.

Preferably, the make-up water source adopts deionized water or distilled water.

The beneficial effects of adopting above-mentioned technical scheme are that, adopt deionized water or distilled water, got rid of the ionic form impurity in aquatic, let water purer, prolong the life of whole equipment.

Preferably, the dual PID controller cabinet is provided with a set key, a temperature reduction key, a temperature increase key, a circulation key, a compressor refrigeration key and a power key, and all of the set key, the temperature reduction key, the temperature increase key, the circulation key, the compressor refrigeration key and the power key are electrically connected with the dual PID controller.

The beneficial effects of adopting above-mentioned technical scheme are that, parameter through the whole equipment of set key gets into the settlement state, and temperature reduction key and temperature increase key are used for the regulation to temperature control, and the work of compressor refrigeration key control compressor is with stopping, and the switch of the whole equipment of power key control.

Preferably, the power cord is connected with a power fuse.

The power supply fuse has the beneficial effect that the power supply fuse provides leakage protection for the whole equipment.

According to the technical scheme, compared with the prior art, the utility model discloses a cooling water circulator adopts the refrigerant flow regulation and PID dual temperature control technology, and can track the change of the environmental temperature and the change of the thermal load in time under the control of the singlechip, thereby achieving the purpose of accurate temperature control; meanwhile, a water condensing net is arranged in the water condenser to serve as a water economizer, so that a better water saving effect can be achieved.

Drawings

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

Fig. 1 is a schematic view of an appearance structure provided by the present invention.

The attached drawing of fig. 2 is the working principle diagram provided by the utility model.

Figure 3 the attached drawing is the utility model provides an inside cross-sectional view of condenser pipe.

Fig. 4 is a sectional view of the water condensation net provided by the present invention.

Wherein, each figure is as follows:

1-shell, 2-dual PID controller, 3-LCD screen, 4-compressor, 5-high pressure meter, 6-condenser, 61-condenser pipe, 62-condensation net, 63-connecting rod, 64-condensation ball, 7-drying filter, 8-evaporator, 9-low pressure meter, 10-cold water return pipe, 11-cold water outlet pipe, 12-circulating pump, 13-make up water source, 14-water level sensor, 15-angle valve, 16-perforated plate, 17-setting key, 18-temperature reducing key, 19-temperature increasing key, 20-circulating key, 21-compressor refrigeration key, 22-power key, 23-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.

As shown in fig. 1-4, the embodiment of the utility model discloses a cooling water circulator, which comprises a shell 1, wherein a dual PID controller 2 is installed on the top of the shell 1, and the dual PID controller 2 is electrically connected with a liquid crystal display screen 3; the inside of the device is fixedly provided with a compressor 4, a high pressure gauge 5, a condenser 6, a drying filter 7, an evaporator 8 and a low pressure gauge 9 which are connected in sequence through pipelines to form a loop; the side wall of the evaporator 8 is connected with a cold water return pipe 10 and a cold water outlet pipe 11, and the cold water outlet pipe 11 is provided with a circulating pump 12; the side wall of the evaporator 8 is also communicated with a make-up water source 13; the compressor 4, the condenser 6, the evaporator 8 and the circulating pump 12 are all electrically connected with the dual PID controller 2. The inner wall of a condensation pipe 61 in the condenser 6 is provided with a plurality of layers of water condensation nets 62, the water condensation nets 62 are connecting rods 63 which are positioned on the radial direction of the condensation pipe 61 and are connected with the inner wall of the condensation pipe 61 at two ends, the connecting rods 63 of one layer of water condensation net 62 are provided with 3 equal-dividing circumferences which are arranged on the same horizontal plane, the connecting rods 63 of one layer of water condensation net 62 and the connecting rods 63 of the adjacent water condensation net 62 are arranged in a staggered mode, and water condensation balls 64 are uniformly arranged on the connecting rods 63. Wherein the direction of the arrows in fig. 3 represents the direction of steam entry and exit. The expansion valve 23 throttles the medium-temperature high-pressure liquid refrigerant into low-temperature low-pressure wet steam, then the refrigerant absorbs heat in the evaporator 8 to achieve a refrigeration effect, and the expansion valve controls the flow of the valve through the change of the superheat degree at the tail end of the evaporator, so that the phenomena of insufficient utilization of the area of the evaporator and cylinder knock are prevented.

The cooling water circulator disclosed by the embodiment can control the temperature and the refrigerant flow regulation through the dual PID controller 2, can track the environmental temperature change and the heat load change in time, and achieves the purpose of accurate temperature control; meanwhile, the liquid crystal display screen 3 is adopted to display real-time Chinese characters, Chinese characters and numbers, the characters are large, uniform and elegant, and clear at a glance; be provided with in the condenser pipe 61 and install the ball 64 of catchmenting on connecting rod 63 and constitute the net 62 of catchmenting, contact with the ball 64 of catchmenting in every condenser pipe 61, increased the area of contact of steam with the pipeline, reduced the velocity of flow of steam in the pipeline, steam condenses in the pipeline and produces a large amount of comdenstion water, and the comdenstion water is carried back to cold water circulator. The embodiment has the advantages of reasonable design, simple structure, convenient use, energy conservation, low cost and the like, and enhances the water-saving effect of the condenser 6. In order to further optimize the above technical solution, a water level sensor 14 is provided on the evaporator 8, and the water level sensor 14 is electrically connected with the dual PID controller 2. A water level alarm is also arranged on the evaporator 8 and is electrically connected with the dual PID controller 2. When the water level is not enough, the water temperature sensor 14 detects that the water level is not enough, then transmits the water level signal to the dual PID controller 2, and the dual PID controller 2 controls the water level alarm to give an alarm to remind an operator to add water to ensure normal work.

In order to further optimize the above technical solution, an angle valve 15 is installed between the condenser 6 and the dry filter 7, and the flow rate can be controlled by the installation of the angle valve 15.

In order to further optimize the technical scheme, a perforated plate 16 is installed at the bottom of the side end face of the shell 1, and the perforated plate 16 is arranged to facilitate the shell to be communicated with the outside.

In order to further optimize the above technical solution, the make-up water source 13 uses deionized water or distilled water. Deionized water or distilled water is adopted, ionic impurities in the water are removed, the water is purer, and the service life of the whole equipment is prolonged.

In order to further optimize the technical scheme, a set key 21, a temperature reduction key 22, a temperature increase key 23, a circulation key 24, a compressor refrigeration key 25 and a power key 26 are installed on the chassis of the dual PID controller 2 and are electrically connected with the dual PID controller 2. The parameters of the whole equipment enter a set state through a set key 21, a temperature reduction key 22 and a temperature increase key 23 are used for adjusting temperature control, a compressor refrigeration key 25 controls the work and stop of the compressor, and a power key controls the switch of the whole equipment.

In order to further optimize the technical scheme, the cooling water circulator further comprises a power line, wherein the power line is connected with a power fuse to provide leakage protection for the whole cooling water circulator.

The utility model discloses a cooling water circulator's use does, demolish all package assembly, whether the inspection instrument has the damage in the transit, put suitable position perpendicularly with equipment, press the power key start, liquid crystal display shows upper limit, lower limit temperature this moment (the parameter has been set for before dispatching from the factory, if not conform to the requirement, then press the set key and reset, the cursor falls on operating temperature, press temperature reduction key 22 or temperature increase key 23 and set for required parameter). The compressor 4 starts to work after a compressor refrigeration key 25 is pressed, the compressor 4 sucks low-temperature and low-pressure refrigerant gas from a gas suction pipe, the low-temperature and low-pressure refrigerant gas is compressed by the compressor 4, high-temperature and high-pressure refrigerant gas is discharged to a gas discharge pipe, a high-pressure meter 5 monitors the high-temperature and high-pressure refrigerant gas compressed by the compressor 4, then a condenser 6 converts the high-temperature and high-pressure gas into liquid, and heat in a pipe is transferred to air near the pipe in a quick mode; the drying filter 7 filters and dries the liquid in the tube and then enters the evaporator 8. The liquid cold water in the evaporator 8 enters the matched equipment through the cold water outlet pipe, and the evaporator 8 converts the liquid state into the gas state and then enters the compressor again to enter the next cycle. In the process, the change of the environmental temperature and the change of the heat load can be tracked in time through the double PID controllers, and the aim of accurately controlling the temperature is fulfilled.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. The cooling water circulator is characterized by comprising a shell (1), wherein a dual PID controller (2) is installed at the top of the shell (1), and the dual PID controller (2) is electrically connected with a liquid crystal display screen (3); a compressor (4), a condenser (6), a drying filter (7) and an evaporator (8) are fixedly arranged in the shell (1) and are sequentially connected through a pipeline to form a loop; the side wall of the evaporator (8) is connected with a cold water return pipe (10) and a cold water outlet pipe (11), and the cold water outlet pipe (11) is provided with a circulating pump (12); the side wall of the evaporator (8) is also communicated with a make-up water source (13); the compressor (4), the condenser (6), the evaporator (8) and the circulating pump (12) are all electrically connected with the dual PID controller (2);

be equipped with multilayer condensate net (62) on the inner wall of condenser pipe (61) in condenser (6), condensate net (62) is for being provided with on same horizontal plane and is located condenser pipe (61) radial direction is last, both ends with connecting rod (63) that condenser pipe (61) inner wall links to each other, one deck condensate net (62) connecting rod (63) have 3 equant circumferences to arrange on same horizontal plane, one deck condensate net's (62) connecting rod (63) and adjacent condensate net's (62) connecting rod (63) staggered arrangement, evenly be provided with on connecting rod (63) and condense water ball (64).

2. The cooling water circulator of claim 1, wherein a water level sensor (14) and a water level alarm are arranged on the evaporator (8), and the water level sensor (14) and the water level alarm are both electrically connected with the dual PID controller (2).

3. A cooling water circulator as claimed in claim 1, wherein an angle valve (15) is installed between the condenser (6) and the dry filter (7).

4. A cooling water circulator as claimed in claim 1, wherein a perforated plate (16) is installed at a side end surface of the housing (1).

5. A cooling water circulator as claimed in claim 1, wherein said make-up water source (13) is deionized or distilled water.

6. The cooling water circulator of claim 1, wherein a set key (17), a temperature decrease key (18), a temperature increase key (19), a circulation key (20), a compressor refrigeration key (21) and a power key (22) are installed on a cabinet of the dual PID controller (2) and are electrically connected with the dual PID controller (2).

7. The cooling water circulator of any one of claims 1 to 6 further comprising a power cord having a power fuse connected thereto.

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