KR101928961B1 - Cold trap - Google Patents

Abstract

The present invention relates to a cold trap, and is capable of completely treating evaporated water vapor and other evaporated substances generated in a dryer, an evaporator, a concentrator, a defroster, an extractor, etc. having a vacuum structure without using an antifreeze, .
A cold trap according to the present invention includes a main body disposed between a vacuum dryer and a vacuum pump, a trap unit installed in the main body and cooling and receiving evaporative water vapor and other evaporation materials from the vacuum dryer, And a path increase inducing portion installed to increase the path of movement by physically interfering with the evaporated water vapor and other evaporation materials.

Description

Cold Trap {COLD TRAP}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cold trap, and more particularly, to a cold trap that treats evaporated water vapor and other evaporated substances generated in a dryer, an evaporator, a concentrator, a defroster, Lt; / RTI >

In general, in the case of a dryer, an evaporator, a concentrator, a deaerator, and an extractor, evaporation water vapor and other evaporation materials are generated therein due to their functions.

The evaporated water vapor and other evaporation materials generated as described above are supplied to a suction device such as a vacuum pump.

In this case, the dryer, the evaporator, the concentrator, the deodorizer and the extractor are connected to the vacuum pump without a separate exhaust means for discharging evaporated water vapor and other evaporated substances to the vacuum structure.

That is, the evaporated water vapor and other evaporated substances are introduced into the vacuum pump without any separate filtering. In this case, as the water is also introduced into the vacuum pump together, the life and performance of the vacuum pump are drastically lowered.

Therefore, conventionally, a cold trap is installed between a drier, an evaporator, a concentrator, a deaerator, an extractor, and a vacuum pump to cool evaporation water vapor and other evaporation materials through refrigerant, MEG series or PEG series antifreeze or alcohol- To protect the vacuum pump.

However, in the case of removing moisture through the filter, moisture is effectively removed at an early stage, but it falls off into a water vapor and water state in a very short period of time and flows into a vacuum pump.

In the case of removing moisture through a coolant and an antifreeze, the water removal rate is not excellent, and the antifreeze has environmental harmfulness and harmfulness to the human body.

In particular, since the antifreeze can not maintain a cryogenic temperature of -40 ° C or lower due to its physical properties, there is a problem that the water can not be cooled only in the form of ice, not completely ice.

In addition, the alcohol-based materials are not only detrimental to the environment and human body but also have a risk of fire safety, such as inconvenience to the user.

Generally, the cold trap includes a main body formed in a box shape, a freezing motor installed in an internal space of the main body, a receiving portion accommodating therein an antifreeze or alcohol in the freezing motor, And a refrigerant circulation tube for allowing evaporated water vapor and other evaporated substances to be cooled in the cup.

However, in the case of the conventional cold trap, since the main body made of stainless steel and the receiving portion are welded to each other, cold air in the receiving portion is directly transferred to the main body portion.

When the condensation phenomenon occurs, the water on the upper surface of the main body part becomes floated. Such water flows to various electronic parts installed in the main body part, causing a short circuit accident.

In addition, since the conventional cold trap can not maintain the predetermined temperature due to heat exchange with the storage portion cooled by the refrigerant circulation portion, the evaporated water vapor and other evaporation materials can not be efficiently cooled and the energy efficiency is lowered .

Registration Utility Model No. 20-0182138 (Mar. 3, 2000) Open Patent Publication No. 10-2000-0056317 (September 15, 2000) Published Patent Application No. 10-2006-0013926 (2006.02.14)

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide an evaporator, evaporator, extractor, The purpose of this paper is to provide a new structure of cold trap that can be completely processed without using a microprocessor.

The present invention also provides a cold trap capable of preventing a condensation phenomenon, improving energy efficiency and performance of a product, preventing a short circuit accident, and securing stability of a product.

A cold trap according to the present invention includes a main body disposed between a vacuum dryer and a vacuum pump, a trap unit installed in the main body and cooling and receiving evaporative water vapor and other evaporation materials from the vacuum dryer, And a path increase inducing portion installed to increase the path of movement by physically interfering with the evaporated water vapor and other evaporation materials.

A first supply pipe for supplying evaporated water vapor and other evaporated substances generated in the vacuum drier to the internal space of the trap unit,

And a second supply pipe for supplying the air present in the internal space of the trap portion to the vacuum pump.

Further, the path increase inducing unit may include:

A body portion in which the second supply pipe is accommodated in the inner space and a plurality of through holes for moving the air separated from the evaporation water vapor and other evaporation material to the second supply pipe along the lower circumferential surface are formed, And a diffusion part formed in a shape gradually increasing in diameter from the upper part to the lower part and diffusing evaporated water vapor and other evaporated materials downward.

The path increase induction portion is formed of a thermally conductive material to cool evaporation water vapor and other evaporation materials through the cool air conducted in the trap portion and to fix the evaporation water vapor and other evaporation materials on the surface thereof.

The heat exchanger further includes a heat insulating portion disposed between the body portion and the trap portion, the heat insulating portion shielding the cool air from the trap portion from being conducted to the body portion.

The cold trap according to the present invention can physically interfere with vaporized water vapor and other evaporated substances generated in a dryer, an evaporator, a thickener, a defroster, an extractor, etc. having a vacuum structure to increase the travel path, The heat exchange time between the other evaporated material and the cool air generated in the trap portion can be made longer and the evaporated water vapor and other evaporated materials are cooled and trapped in the path increase induction portion.

Therefore, it is possible to effectively cool and treat the evaporated water vapor and other evaporated substances without using the antifreeze or alcohol-based material having a high risk, and it is possible to prevent the life or performance of the vacuum pump from being deteriorated.

In addition, it is possible to prevent condensation from occurring in the main body portion and to prevent water from being generated, so that it is possible to prevent water leakage from flowing into various electronic components installed in the main body portion, It is effective.

In addition, since the cooled storage portion can be prevented from lowering in temperature by heat exchange with the main body portion, the inside of the storage portion can be maintained at the set temperature, thereby maximizing the energy efficiency and efficiently removing the evaporated water vapor and other evaporation materials There is a possible effect.

1 is a view showing a state where a cold trap according to the present invention is connected between a vacuum dryer and a vacuum pump;
2 is an exploded perspective view showing a cold trap according to the present invention;
3 is an exploded perspective view of a cold trap according to the present invention.
4 is an enlarged view of a portion A;
5 is a perspective view showing a path increase induction portion applied to a cold trap according to the present invention.
6 is an assembled cross-sectional view of a cold trap according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Like parts are designated with like reference numerals throughout the specification.

FIG. 1 is a view showing a state where a cold trap according to the present invention is connected between a vacuum dryer and a vacuum pump, FIG. 2 is an exploded perspective view showing a cold trap according to the present invention, FIG. 5 is a perspective view showing a path increase induction portion applied to the cold trap according to the present invention, and FIG. 6 is a cross-sectional view illustrating a cold trap according to the present invention. FIG.

The cold trap 1 according to the present invention is installed on an exhaust line between a vacuum dryer 80 and a vacuum pump 90 to remove vaporized water vapor and other evaporated substances discharged in a vacuum dryer 80, It is possible to provide only the air to the heat exchanger (90) while ensuring a perfect heat insulation structure, thereby improving energy efficiency and product performance without causing condensation, and preventing the occurrence of a short circuit accident, And includes a main body 10, a trap portion 20, and a path increase induction portion 30.

The main body 10 has a first receiving hole 11 which is upwardly and downwardly penetrated on an upper surface thereof, and a hollow space is formed therein, and at least one side surface is openable and closable.

Various arrangements for electronically controlling the trap portion 20 and the trap portion 20, which will be described later, are installed in the internal space of the main body portion 10.

A controller (not shown) may be installed on the outer surface of the main body 10 and a switch (not shown) for turning the trap unit 20 on or off and a temperature of the trap unit 20 And a liquid crystal display unit (not shown) for displaying the temperature of the switch (not shown) and the trap unit 20 by numerals so that the operator can easily confirm the temperature.

The main body 10 can be made of stainless steel material which is not easily corroded and has excellent durability.

In addition, a rectangular mounting hole is formed in a side wall of the main body 10, and a heat discharging part 50 is further installed in the mounting hole.

The heat discharging part 50 discharges the heat generated by the operation of the trap part 20 to the outside of the body part 10 so that the inside of the body part 10 can always maintain an appropriate temperature. (51) and a discharge inducing part (52).

The base 51 is installed in the installation hole, and is formed in a rectangular frame shape, and an installation space is formed therein.

The discharge guide portions 52 may be formed in a rectangular bar shape and are spaced from each other along the vertical direction of the installation space.

Accordingly, a discharge passage is formed between the discharge inducing portions 52, so that the heat existing in the internal space of the main body 10 can be easily discharged.

At this time, the discharge inducing part 52 has an inclination angle gradually increasing away from the inner space of the main body part 10 from the lower side toward the upper side.

That is, the hot air is moved to the upper part so that an installation hole is formed on the side wall of the main body 10 to install the hot discharge unit 50, and the discharge induction unit 52 is manufactured So that the heat transferred to the upper portion in the inner space of the main body 10 can be quickly discharged through the discharge passage.

The trap part 20 is installed in the main body part 10 to cool the evaporated water vapor and other evaporated substances discharged from the vacuum dryer 80 and to transfer air only to the vacuum pump 90. The trap part 20 includes a receiving part 21 ), And a refrigerant circulation pipe (22).

The accommodating portion 21 has an upper surface opened and an empty space in which the refrigerant circulation pipe 22 and the path increase induction portion 30 can be accommodated.

The receiving portion 21 is received in the first receiving hole 11 of the main body portion 10 and the upper side thereof protrudes upward from the main body portion 10.

At this time, along the upper edge of the accommodating portion 21, a seating flange 211 that is seated on the upper surface of the heat insulating portion 40 described later is protruded in the horizontal direction.

A blocking plate (70) is seated on the upper end of the seating flange (211) and the upper end of the heat insulating part (40).

The blocking plate 70 may be formed as a circular plate or a rectangular plate having a predetermined thickness to prevent the evaporation water vapor and other evaporation substances from flowing out by covering the opened portion of the receiving portion 21.

At this time, an insertion groove 71 positioned on the vertical line with the seating flange 211 is formed along the bottom edge of the blocking plate 70, and the inside of the accommodation portion 21 is inserted into the insertion groove 71 The packing P is fixed to prevent evaporated water vapor and other evaporated substances in the accommodating portion 21 from being discharged to the outside while maintaining the vacuum state.

In addition, the blocking plate 70 is provided with a first supply pipe 100, and the main body 10 is provided with a second supply pipe 110.

Specifically, the first supply pipe 100 is located in the receiving part 21 through a part of the blocking plate 70, and the upper part of the first supply pipe 100 protrudes upward from the blocking plate 70, 80 via the first clamp C1.

The second supply pipe 110 passes through the bottom surface of the main body part 10 and is located inside the receiving part 21. The lower side of the second supply pipe 110 protrudes to the lower side of the receiving part 21, The second connection pipe 130 and the second clamp C2.

The refrigerant circulation pipe 22 is installed in an empty space of the accommodating portion 21 and is formed in a coil shape, and a flow path through which the refrigerant moves is formed.

The refrigerant circulation pipe 22 is connected to a refrigerant supply unit 23 constituted by a refrigeration motor 231 and a radiator 232 in a state where a part of the refrigerant circulation pipe 22 protrudes out of the accommodating unit 21. [ At this time, the coolant supply unit 23 may be installed in the inner space of the main body 10.

That is, the refrigeration motor 231 supplies the refrigerant to the refrigerant circulation pipe 22, and the supplied refrigerant circulates through the refrigerant circulation pipe 22 and is then recovered by the refrigeration motor 231 will be.

When the refrigerant is circulated in the refrigerant circulation pipe 22 as described above, the evaporated water vapor and other evaporation materials existing in the receiving portion 21 are changed into a flare shape and fixed to the surface of the path increase induction portion 30, Only the air is sucked into the pump 90.

At this time, the trap part 20 is the same as that applied to a commonly used cold trap, and evaporated water vapor and other evaporated substances discharged from the vacuum dryer 80 are supplied to the vacuum pump 90 through the trap part 20 The way in which it is inhaled can also be the same as a normal cold trap.

The path increase inducing portion 30 is disposed in a vacant space of the accommodating portion 21 to increase the flow path of evaporated water vapor and other evaporation materials and to cause heat exchange with the evaporated water vapor and other evaporation materials to cool the body portion 31 ), And a spreading section (32).

The body part 31 may be formed in a cylindrical shape having the same outer diameter or may be formed in a polygonal box shape, and the lower end thereof is seated on the bottom surface of the receiving part 21. [

At this time, the second supply pipe 110 is accommodated in the inner space of the body part 31.

A through hole 311 is formed at an interval along the lower circumferential surface of the body portion 31 to allow air to pass through the trap portion 20 from the evaporated water vapor and other evaporated substances.

The diffusion part 32 is integrally formed on the upper side of the body part 31 and has a conical shape whose diameter gradually increases from the upper part to the lower part.

In other words, the evaporated water vapor and other evaporated substances supplied to the inner space of the receiving portion 21 through the first connection pipe 120 and the first supply pipe 100 collide with the diffusion portion 32 and spread in various directions The movement path is increased according to the movement direction. This makes it possible to completely cool the evaporated water vapor and other evaporated materials by prolonging the contact time and heat exchange time of cool air generated from the coolant circulation pipe 22 with evaporated water vapor and other evaporated materials.

In addition, the path increase inducing portion 30 is made of a thermally conductive material, and can be cooled and adhered to the surface thereof by cooling the evaporated water vapor and other evaporation materials as they are cooled by cold air generated from the refrigerant circulation pipe 22.

At this time, the path increase inducing portion 30 may be made of a metal material such as aluminum, copper, and stainless steel (SUS) so as to efficiently cool the evaporation water vapor and other evaporation materials to fix and collect the surface thereof. have.

The air separated from the evaporated water vapor and other evaporated substances passes through the through holes 311 of the body portion 31 and flows into the inner space of the path increase induction portion 30 and then flows into the second supply pipe 110 and the second connection And the pipe 130 are sequentially sucked into the vacuum pump 90. [

The cold trap 1 according to the present invention further includes a heat insulating portion 40 for shielding the cold air of the trap portion 20 from being conducted to the main body portion 10.

The heat insulating portion 40 may be formed in a ring shape and has a second receiving hole 41 penetrating in the upward and downward directions. When the heat receiving portion 40 is seated on the upper surface of the body portion 10, (41) and the first receiving hole (11) are positioned on a vertical line.

A part of the receiving part 21 is accommodated in the first receiving hole 11 and the other part is accommodated in the second receiving hole 41. The mounting flange 211 is connected to the heat insulating part 40, As shown in Fig.

The heat insulating portion 40 prevents the main body portion 10 from contacting with the receiving portion 21 while insulating the main body portion 10 from the receiving portion 21, Thereby preventing conduction to the main body 10.

That is, it is possible to prevent the condensation phenomenon from occurring in the body 10 through the heat insulating portion 40 and prevent water from being generated, so that water flows into various electronic components installed in the body 10, And the safety of the cold trap can be ensured.

In addition, in the case of the conventional cold trap, it is necessary to wipe the water from time to time in order to prevent water generated on the upper surface of the main body 10 from flowing into the main body 10 to cause a short circuit accident. However, Since there is no need to wipe off the water, there is an advantage that it is possible to provide ease of use.

In addition, since the cooled receiving portion 21 can be prevented from lowering in temperature by heat exchange with the main body 10, the inside of the receiving portion 21 can maintain the set temperature, thereby maximizing the energy efficiency , There is an advantage that evaporation water vapor and other evaporation substances can be efficiently removed.

The above-described heat insulating portion 40 can be coupled to or separated from the body portion 10 in a stable and simple manner through the pressure fixing portion 60.

For this, a plurality of fastening holes 12, 42 are formed on the upper surface of the heat insulating part 40 and the main body part 10 so as to be spaced apart from each other.

A plurality of through holes 72 are formed on the edge of the barrier plate 70 in a direction perpendicular to the fastening holes 12 and 42.

The pressurizing and fixing unit 60 includes a pressing unit 61 and a coupling unit 62 formed integrally with the pressing unit 61 and having a spiral at the outer periphery thereof.

The fastening part 62 passes through the through hole 72 from the upper side of the blocking plate 70 and then passes through the fastening hole 42 of the heat insulating part 40 and the fastening hole 12 of the body part 10 And the pressing portion 61 is lowered by the tightening operation of the fastening portion 62 so as to press the blocking plate 70 against the heat insulating portion 40 so that the blocking plate 70 is separated from the heat insulating portion 40 are pressed and fixed to the main body 10.

That is, since the cold trap 1 according to the present invention can easily couple or separate the heat insulating portion 40 to the body portion 10 through the pressure fixing portion 60, The trap portion 20, the path increase inducing portion 30, and the like.

The present invention has been described above with reference to the embodiments shown in the drawings. However, the present invention is not limited thereto, and various modifications or other embodiments falling within the scope of the present invention are possible by those skilled in the art.

1: Cold trap 10:
11: first receiving hole 12, 42: fastening hole
20: trap part 21:
211: mounting flange 22: refrigerant circulation pipe
23: refrigerant supply unit 231: refrigeration motor
232: Radiator 30: Path increasing induction portion
31: Body part 311: Through hole
32: diffusion part 40:
41: second receiving hole 50:
51: Base 52:
60: pressure fixing portion 61: pressing portion
62: fastening part 70: blocking plate
71: insertion groove 72: through hole
80: Vacuum dryer 90: Vacuum pump
100: first supply pipe 110: second supply pipe
120: first connection pipe 130: second connection pipe

Claims (5)

A main body disposed between the vacuum dryer and the vacuum pump,
A trap unit installed in the main body and supplied with evaporative water vapor and other evaporation material from the vacuum drier to cool the evaporator,
A path increase inducing part installed in the inner space of the trap part and physically interfering with the evaporated water vapor and other evaporation materials to increase the travel path,
A first supply pipe for supplying evaporated water vapor and other evaporated substances generated in the vacuum drier to the inner space of the trap unit,
And a second supply pipe for supplying air in the internal space of the trap portion to the vacuum pump,
The path-
A body portion in which the second supply pipe is accommodated in the inner space and the plurality of through holes for moving the air separated from the evaporation water vapor and the other evaporation material to the second supply pipe along the lower circumferential surface are formed,
And a diffusion part formed on the upper side of the body part and having a shape gradually widened from the upper part to the lower part to diffuse the evaporated water vapor and other evaporated substances downward.
delete delete The method according to claim 1,
Wherein the path increase inducing portion is formed of a thermally conductive material so as to cool the evaporated water vapor and other evaporated materials through the cold air conducted in the trap portion and to fix the evaporated water vapor and other evaporated materials on the surface thereof.
The method according to claim 1,
And a heat insulating portion provided between the body portion and the trap portion, the heat insulating portion shielding the cold air of the trap portion from being conducted to the body portion.

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