KR102260187B1 - Chiller - Google Patents

Abstract

The present invention relates to a coolant flowrate-adjustable chiller device and, more particularly, to a coolant flowrate-adjustable chiller device which has a refrigerant line, a coolant storage tank, a coolant circulation line, and a coolant supply line built-in in a single enclosure, thereby being made compact, and has a thermomotor mounted in the coolant supply line, thereby controlling the flow rate of coolant discharged. To achieve the purpose, the coolant flowrate-adjustable chiller device including the enclosure comprises: the refrigerant line including an evaporator, a compressor, a condenser, and an expansion valve connected to form the circulating cooling cycle of refrigerant; the coolant storage tank having a reservoir unit for storing coolant and a coolant temperature control heater built in the reservoir unit; the coolant circulation line connected between the evaporator and the coolant storage tank to circulate coolant, and having a coolant circulation pump installed therein to store the cooled coolant in the reservoir unit; and the coolant supply line connected to the outlet of the coolant storage tank, and having a coolant supply pump with a servomotor for controlling the flowrate of the coolant discharged.

Description

Cooling water flow control type chiller device {CHILLER}

The present invention relates to a cooling water flow control type chiller device, in which a refrigerant line, a cooling water storage tank, a cooling water circulation line, and a cooling water supply line are built in a single enclosure to reduce the size of the chiller device, and a thermomotor is mounted on the cooling water supply line It relates to a cooling water flow rate control type chiller device that can control the outflow water flow rate of the cooling water.

The chiller system, which consists of a compressor, condenser, expansion valve, evaporator, electric heater, and cooling water pump, is a technology widely used as the most basic industrial cooling method to cool the heat load of process equipment with the cooling water of the chiller system. Equipment, lasers, injection machines, medical devices, and chemical process facilities) are prevented from fluctuating irregularly throughout the year and throughout the day, so that they are cooled and maintained at the optimum temperature.

The conventional chiller system pumps cooling water in a storage tank using a pump to supply and circulate it, but there is a disadvantage in that the flow rate of the cooling water cannot be freely controlled by using a general motor.

In particular, the cooling efficiency during circulation varies as the flow rate (speed) of the cooling water varies depending on industrial conditions such as the size and length of the cooling water circulation pipe and the type of industrial equipment, even for cooling water of the same temperature. For precise control, not only the temperature control of the cooling water but also the flow rate control of the cooling water must be precisely controlled. In the conventional chiller system, it is impossible to control the flow rate of the outgoing cooling water, so there are problems such as manually adjusting the flow rate using a valve. have.

For reference, as prior art related thereto, there are Korean Patent Publication No. 10-2008-0093564, Korean Patent Publication No. 10-2010-0120323, and the like.

Accordingly, the present invention has been devised to solve the above problems,

The purpose of providing a cooling water flow rate control chiller device that can increase cooling efficiency by automatically and precisely controlling the flow rate of the final cooling water according to various industrial conditions while maintaining a constant control over the temperature deviation of the cooling water. do.

In order to achieve the above object, the cooling water flow rate control type chiller device according to the present invention,

In the cooling water flow rate control type chiller device including the housing,

Refrigerant line including evaporator, compressor, condenser, expansion valve, connected to form a circulating cooling cycle of refrigerant;

A cooling water storage tank having a water storage unit for storing cooling water, a heater for controlling the cooling water temperature built in the water storage unit;

a cooling water circulation line connected between the evaporator and the cooling water storage tank to circulate the cooling water, and a cooling water circulation pump is installed so that the cooled cooling water is stored in the storage unit;

and a cooling water supply line connected to the water outlet of the cooling water storage tank and provided with a cooling water supply pump having a servomotor for controlling the flow rate of the discharged cooling water.

And the cooling water flow rate control type chiller device according to the present invention,

The enclosure is divided into two upper and lower layers,

The evaporator, the compressor, the condenser and the expansion valve are mounted on the lower part of the housing, and the cooling water storage tank is mounted on the upper part of the housing.

In addition, in the cooling water flow rate control type chiller device according to the present invention,

The refrigerant line includes a liquid vaporizer, characterized in that the liquid vaporizer is mounted on the upper layer of the housing.

In addition, in the cooling water flow rate control type chiller device according to the present invention,

and a make-up water storage tank for replenishing the cooling water to the reservoir, characterized in that the make-up water storage tank is mounted on the upper layer of the housing.

Cooling water flow rate control type chiller device according to the present invention,

All lines, cooling water storage tank, cooling water circulation line, and cooling water supply line are built into one box, so cooling systems can be easily built and used in various industrial sites. You can increase the cooling efficiency by automatically controlling the flow rate more easily and accurately.

A chiller device can be manufactured compactly and compactly by dually mounting various parts and tanks that form a refrigerant line in a two-layer structure.

The addition of the make-up water storage tank has the effect of enabling the use of the chiller alone without additional replenishment of cooling water for a certain period of time.

1 is a schematic diagram of a chiller device according to the present invention;
2 is a front view and a side view schematically showing a chiller device according to the present invention.
3 is a side view and cross-sectional views of the main part for explaining the folding means for the wheel according to the present invention.

Since the present invention can have various changes and can have various forms, implementation examples (態樣, aspects) (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

In each drawing, the same reference numerals, particularly the tens digit and the one digit, or the tens digit, the one digit, and the same alphabetic reference numerals indicate members having the same or similar functions, and, unless otherwise specified, each of the figures in the drawings. The member indicated by the reference sign may be understood as a member conforming to these standards.

In addition, in each drawing, components are expressed in exaggeratedly large (or thick) or small (or thin) in size or thickness in consideration of convenience of understanding, or simplified, but the protection scope of the present invention is limited by this. it shouldn't be

The terminology used herein is only used to describe a specific embodiment (aspect, aspect, aspect) (or embodiment), and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as comprises or consists of are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification is present, and one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

~1~, ~2~, etc. described in the present specification will be referred to only to distinguish that they are different components, and are not limited to the order of manufacture, and the names are not defined in the detailed description and claims of the invention. may not match.

In describing the cooling water flow rate control chiller device according to the present invention, if an approximate, non-strict direction standard is specified with reference to FIG. 1 for convenience, the direction in which gravity acts is the downward direction, and the vertical and horizontal directions are determined as it is, In the detailed description and claims of the invention related to other drawings, unless otherwise specified, directions are specifically described in accordance with this standard.

Hereinafter, a cooling water flow rate control type chiller device according to the present invention will be described with reference to the accompanying drawings.

The present invention relates to a cooling water flow rate control chiller device including a housing 10, and as shown in FIGS. 1 to 3, a refrigerant line 20 and a cooling water storage tank 30 built into the housing 10 largely. ), a cooling water circulation line 40 , a cooling water supply line 50 , and a make-up water storage tank 60 .

The housing 10 is divided into two layers, upper and lower, consisting of a lower layer 11 and an upper layer 12 , and a wheel 13 for movement is mounted on the bottom of the lower layer 11 .

The housing 10 is a frame structure, and each side plate is detachably mounted to the frame to protect internal components, and the side plate is provided with a display control unit 14 for controlling the operation of the chiller device and showing various status information.

The refrigerant line 20 includes an evaporator 21 , a compressor 22 , a condenser 23 , an expansion valve 24 , and a liquid vaporizer 25 , which are connected to form a circulating cooling cycle of the refrigerant.

Specifically, the evaporator 21 , the compressor 22 , the condenser 23 , and the expansion valve 24 are connected to one refrigerant line 20 to circulate the refrigerant, and the refrigerant line between the evaporator 21 and the compressor 22 . A liquid vaporizer 25 is installed in the (20).

The evaporator 21 absorbs heat from the cooling water circulating in the cooling water circulation line 40 to cool the cooling water, and the low-temperature and low-pressure liquid refrigerant passing through the expansion valve 24 absorbs the heat of the cooling water and is vaporized.

The high-temperature and low-pressure gas refrigerant that has passed through the evaporator 21 is compressed to a high pressure in the compressor 22, and then is condensed into a high-temperature and high-pressure liquid refrigerant through the condenser 23 to radiate high-temperature heat to the outside,

The low-temperature and high-pressure liquid refrigerant passing through the condenser 23 is circulated and supplied to the evaporator 21 in a low-pressure state while passing through the expansion valve 24 .

The liquid vaporizer 25 temporarily stores the liquid refrigerant, and absorbs a change in the amount of refrigerant according to a load change in the evaporator 21 to facilitate operation, and separates moisture condensed while circulating from the refrigerant.

In addition, the hot gas path control valve 26 is connected to the pipe branched between the compressor 22 and the condenser 23, and the outlet pipe of the hot gas path control valve 26 is connected to the expansion valve 24 and the evaporator ( 21) is connected to the pipe between the

In addition, in the pipe between the condenser 23 and the expansion valve 24, the liquid refrigerant control 27 side and the capillary pipe 27a are branched and connected, and the outlet pipe of the capillary pipe 27a is the suction side pipe of the compressor 22 ( More strictly, it is connected to the front end pipe of the liquid vaporizer 25).

The cooling water storage tank 30 includes a water storage unit 31 for storing cooling water, and a heater 32 for controlling the cooling water temperature built in the water storage unit 31 .

A level sensor 33 for detecting the water level is mounted on the water storage unit 31, and a temperature sensor (not shown) for detecting the temperature of the coolant in the water storage unit 31 is mounted to reduce the temperature by the operation of the electric heater 32. The temperature of the cooling water stored in the water part 31 is maintained constant.

The cooling water storage tank 30 includes an outlet pipe 41 and an inlet pipe 42 of the cooling water circulation line 40, a water supply pipe 61 of the make-up water storage tank 60, and an outlet pipe of the cooling water supply line 50 ( 51) and the return pipe 52 are connected,

A floating port 34 for adjusting the water level is provided for opening and closing the water supply pipe 61 by varying the floating height according to the level of the coolant.

The cooling water circulation line 40 is connected to circulate cooling water between the evaporator 21 and the cooling water storage tank 30 , and a cooling water circulation pump 43 is installed to cool the cooling water while passing through the evaporator 21 . is stored in the reservoir 31 .

The cooling water circulation pump 43 installed in the discharge pipe 41 of the cooling water circulation line 40 operates when the cooling water of the water storage unit 31 is higher than a set temperature to transfer the cooling water from the storage unit 31 to the evaporator 21 . exhaust supply,

The cooling water cooled while passing through the evaporator 21 is circulated back to the water storage unit 31 through the inlet pipe 42 of the cooling water circulation line 40 and stored.

The cooling water supply line 50 is connected to the water outlet of the cooling water storage tank 30 , and a cooling water supply pump 53 having a servomotor for controlling the flow rate of the discharged cooling water is installed.

The cooling water supply line 50 is composed of an outlet pipe 51 through which cooling water is discharged and a recovery pipe 52 through which cooling water that has passed through industrial facilities is recovered,

A cooling water pressure reducing valve 54 , a pressure gauge 55 , and a flow meter 56 are sequentially mounted on the outlet pipe 51 in which the cooling water supply pump 53 is installed, as a rear end of the cooling water supply pump 53 .

In particular, the present invention employs a servomotor in the cooling water supply pump 53 to precisely control the operation of the cooling water supply pump 53 at a specific speed and torque, so that water is discharged from the cooling water storage tank 30 to the water outlet pipe 51 . You can adjust the flow rate of the cooling water to suit your needs.

The make-up water storage tank 60 replenishes the cooling water to the water storage unit 31, and when the water level in the water storage unit 31 falls below a certain level, the cooling water in the storage unit is supplied to the storage unit 31 and supplemented. , it enables independent operation for a certain period even when the chiller device is not directly connected to a separate water supply line.

This make-up water storage tank 60 is in a form that can be connected to the water supply pipe 61 of the water supply line, and is the same as the coolant storage tank 30 except for the heater 32. The water level sensor 62 and the water level A floating port 63 for adjustment is provided.

At this time, the evaporator 21 , the compressor 22 , the condenser 23 , and the expansion valve 24 are mounted on the lower part 11 of the housing 10 , and the cooling water is stored in the upper part 12 of the housing 10 . A tank 30, a liquid vaporizer 25, and a make-up water storage tank 60 are mounted.

In the present invention, a standing evaporator 21, a compressor 22, and a condenser 23 are installed in the lower part 11 of the housing 10, and a bulky cooling water storage tank 30 and a make-up water storage tank 60 ) and a long horizontal liquid vaporizer (25)? By separately installing the upper part 12 separately, the whole chiller device can be compactly and downsized.

On the other hand, the chiller device of the present invention may use a forklift or a hoist during transportation due to its weight. At this time, the wheel 13 may be caught and may interfere with transportation.

Accordingly, the present invention is a folding means for the wheel 13 that can be hidden and fixed inside the bottom of the housing 10 by folding the wheels 13 of the housing 10 in the horizontal direction when transporting the chiller device using the transport equipment. includes

The bending means for the wheel 13 is,

A wall frame 15 of a predetermined height coupled along the bottom edge of the bottom of the housing 10;

It is mounted to protrude from the bottom of the bottom part and has a lower height than the wall frame 15, a first shaft hole 16a formed through one side horizontally, and a predetermined horizontal direction on the inner circumferential surface of the first shaft hole 16a A shaft construction block 16 having first binding grooves 16b and 16b' arranged in a vertical, left and right '+' shape around the first shaft hole 16a while being concave in length and having one side open;

A second shaft hole 17a corresponding to the first shaft hole 16a, the second shaft hole 17a corresponding to the first shaft hole 16a, the wheel 13 is mounted on the lower end and connected to be rotatable left and right in contact with one side of the shaft snow block 16 Rotating block (17a) having a second binding groove (17b) which is formed concave with a predetermined length in the horizontal direction on the inner circumferential surface of 17a and is arranged in an upper and lower 'l' shape around the second shaft hole 17a while the other side is opened ( 17),

The first shaft hole (16a) and the second shaft hole (17a) are fitted and coupled, the first binding groove (16b) (16b') and the second binding groove (17b) protruding from the outer peripheral surface so as to be inserted into the binding Including a rotating rod (18) having a projection (18a),

The length of the second binding groove (17b) is longer than that of the first binding groove (16b) (16b'), and the length of the second binding groove (17b) and the binding protrusion (18a) are the same,

In a state in which the rotating rod 18 is advanced to the other side, the wheel 13 is vertically erected while the binding protrusion 18a is caught in both the first binding groove 16b and the second binding groove 17b arranged vertically. fixed,

When the rotating rod 18 is moved backward to one side, the wheel 13 can be horizontally laid down by rotating the rotating rod 18 while the binding protrusion 18a is caught only in the second binding groove 17b,

When the rotating rod 18 is advanced to the other side in a state in which the wheel 13 is laid horizontally, the binding protrusion 18a is horizontally arranged in the first binding groove 16b' and the second binding groove 17b. It is characterized in that the wheel 13 is laid down horizontally and fixed while being caught.

In the shaft installation block 16 and the rotation block 17, the first and second shaft holes 17a are provided on the same line, and the first binding grooves 16b and 16b' arranged in a '+' shape and the ' Each of the openings of the second binding grooves 17b arranged in an l' shape are connected to face each other.

The rotating rod 18 has a length longer than the spacing of the blocks arranged before and after (or left and right) so as to simultaneously rotate the two wheels 13 arranged in front and rear (or left and right), and a pulling part at one end (18a) is protruded, and the pulling part (18a) is provided and located inside the holding part (17a) connected to the rotation block (17) arranged on one side.

The rotating rod 18 is elastically supported to move forward to the other side by a tension spring or a compression spring.

Meanwhile, due to the second binding groove 17b and the binding protrusion 18a having a longer length and the same length as compared to the first binding grooves 16b and 16b', the rotating rod 18 is pushed to the other side and advanced. In the above, the binding protrusion 18a is hung on the front end of all of the first binding grooves 16b and the second binding grooves 17b that are vertically arranged, so that the vertically erected second wheel 13 is fixed without being laid down. It enables the self-movement of the enclosure 10 .

And, when transporting using a transport facility, holding the holding part 17a and pulling the pulling part 18a to the rear side, the binding protrusion 18a is separated from the first binding grooves 16b and 16b'. Only the second binding groove 17b is caught, and in this state, when the rotating rod 18 is rotated in one direction together with the holding part 17a, only the rotating block 17 rotates together with respect to the fixed shaft installation block 16, Eventually, the second wheel 13 is laid down horizontally and accommodated in the wall frame 15 .

In this state, the second binding groove 17b and the binding protrusion 18a are horizontally arranged, and therefore, when the rotating rod 18 is advanced to the other front side, the first binding groove 16b' in which the binding protrusion 18a is horizontally arranged. ) As the rotating rod 18 is fixed while being caught on the front end of the front end and the second binding groove 17b, the wheel 13 protrudes to the lower part of the housing 10 while the wheel 13 is kept in a horizontally laid state. Therefore, it is possible not to be disturbed when transporting using a transport facility or the like.

In the above description of the present invention, the cooling water flow rate control type chiller device has been mainly described with reference to the accompanying drawings. However, the present invention can be variously modified, changed and replaced by those skilled in the art, and such modifications, changes and substitutions are of the present invention. It should be construed as belonging to the scope of protection.

10: housing 20: refrigerant line
30: cooling water storage tank 40: cooling water circulation line
50: cooling water supply line 60: make-up water storage tank

Claims (4)

In the cooling water flow rate control type chiller device including the enclosure (10),
Refrigerant line 20 including an evaporator 21, a compressor 22, a condenser 23, and an expansion valve 24, connected to form a circulating cooling cycle of the refrigerant;
A cooling water storage tank 30 having a water storage unit 31 for storing cooling water, a heater 32 for controlling the cooling water temperature built in the water storage unit 31;
A cooling water circulation line 40 is connected between the evaporator 21 and the cooling water storage tank 30 to circulate the cooling water, and a cooling water circulation pump 43 is installed so that the cooled cooling water is stored in the storage unit 31 . ),
and a cooling water supply line (50) connected to the water outlet of the cooling water storage tank (30) and provided with a cooling water supply pump (53) having a servomotor for controlling the flow rate of the discharged cooling water;
The housing 10 is equipped with wheels 13 for moving on the bottom surface, and folding means for the wheels 13 that can be hidden and fixed inside the bottom of the housing 10 by folding the wheels 13 in the horizontal direction. including,
The bending means for the wheel 13 is,
A wall frame 15 of a predetermined height coupled along the bottom edge of the bottom of the housing 10;
A first shaft hole 16a that is mounted to protrude from the bottom of the bottom portion and has a lower height than the wall frame 15, and is formed through one side in the horizontal direction, and a predetermined horizontal direction on the inner circumferential surface of the first shaft hole 16a A shaft construction block 16 having first binding grooves 16b and 16b' arranged in a vertical, left and right '+' shape around the first shaft hole 16a while being concave in length and having one side open;
A second shaft hole 17a corresponding to the first shaft hole 16a, the second shaft hole 17a corresponding to the first shaft hole 16a, the wheel 13 is mounted on the lower end and connected to be rotatable left and right in contact with one side of the shaft snow block 16 Rotating block (17a) having a second binding groove (17b) which is formed concave with a predetermined length in the horizontal direction on the inner circumferential surface of 17a and is arranged in an upper and lower 'l' shape around the second shaft hole 17a while the other side is opened ( 17),
The first shaft hole (16a) and the second shaft hole (17a) are fitted and coupled, the first binding groove (16b) (16b') and the second binding groove (17b) protruding from the outer peripheral surface so as to be inserted into the binding Including a rotating rod (18) having a projection (18a),
The length of the second binding groove (17b) is longer than that of the first binding groove (16b) (16b'), and the length of the second binding groove (17b) and the binding protrusion (18a) are the same,
In a state in which the rotating rod 18 is advanced to the other side, while the binding protrusion 18a is caught in both the first binding groove 16b and the second binding groove 17b arranged vertically, the wheel 13 is vertically erected. fixed,
When the rotating rod 18 is reversed to one side, the wheel 13 can be horizontally laid down by rotating the rotating rod 18 while the binding protrusion 18a is caught only in the second binding groove 17b,
When the rotating rod 18 is advanced to the other side in a state in which the wheel 13 is laid horizontally, the binding protrusion 18a is horizontally arranged in the first binding groove 16b' and the second binding groove 17b. Cooling water flow rate control type chiller device, characterized in that the wheel (13) is laid down horizontally and fixed while being caught.
The method of claim 1,
The housing 10 is divided into two upper and lower layers,
The evaporator 21 , the compressor 22 , the condenser 23 , and the expansion valve 24 are mounted on the lower part 11 of the housing 10 , and the cooling water storage tank is located on the upper part 12 of the housing 10 . (30) Cooling water flow rate control chiller device, characterized in that it is mounted.
3. The method of claim 2,
The refrigerant line (20) includes a liquid vaporizer (25), and the liquid vaporizer (25) is mounted on the upper part (12) of the housing (10).
3. The method of claim 2,
Cooling water, comprising a make-up water storage tank (60) for replenishing the cooling water to the reservoir (31), wherein the make-up water storage tank (60) is mounted on the upper part (12) of the housing (10) Flow adjustable chiller unit.

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