KR20040035450A - Fluid filter apparatus, absorbtion chiller and heater using the same - Google Patents

Abstract

PURPOSE: A fluid filtering device is provided to simplify the mounting and maintenance of a filter, and increase the filtering efficiency while extending the lifespan of the filter. CONSTITUTION: A fluid filtering device includes a filter housing(11) having a fluid inlet(13) and an opened side, and a hatch(10) for opening and closing the opening side of the filter housing and having an outlet(47) for discharging the fluid in the filter housing to the outside. A first cylindrical filter(71) is detachably mounted in the filter housing to filter the fluid introduced via the inlet. One or more second cylindrical filters(73) are received in the first filter to filter and guide the fluid passing through the first filter to the outlet. The first and second cylindrical filters are concentrical with each other.

Description

FILID FILTER APPARATUS, ABSORBTION CHILLER AND HEATER USING THE SAME}

The present invention relates to a fluid filtration device and an absorption chiller and an absorption chiller using the same.

When the fluid filtration device passes a fluid such as liquid or gas through the filter medium, foreign particles of a predetermined size or more contained in the fluid are deposited in the filter medium and the fluid passes through the filter medium, thereby separating the particles of the predetermined size from the fluid.

The filter medium is formed by winding a winding filter wound around a core core, a resin filter made by mixing a fiber such as glass fiber or acrylic with a resin, a molded polypropylene (PP) filter, a polypropylene or glass fiber, and the like. The cartridge filter, such as a surface filtration filter and a hollow fiber membrane filter having a microporous membrane made of a material such as nylon or polycarbonate, may be selected and used according to the filtration use and conditions.

Conventional fluid filtration devices are divided into a case in which one cartridge filter is used in one filter housing and a plurality of cartridge filters of the same standard are arranged in parallel in one filter housing.

In addition, the filtration apparatus includes filtration of contaminants such as scales in purified water and cooling water of cooling water, cooling and heating facilities, and filtration of industrial water and gases in the semiconductor industry, food industry, pharmaceutical industry, and oils. It can be widely used for purification and the like.

As an example of using the fluid filtration device as a means for filtering the absorbing solution, the absorption chiller and the absorption cold / hot water absorber are evaporators for producing cold water at low temperature using evaporation of water as a refrigerant, and refrigerant vapor generated in the evaporator using an absorbent of concentrated solution. In the absorber and heat absorber through heat exchange between the high temperature concentrated aqueous solution supplied from the regenerator and the dilute solution supplied from the absorber. A solution heat exchanger, a solution heat exchanger, a solution pump, a refrigerant pump, a de-crystallization device, a purge chamber, and hot water (or steam) for a heat source to reduce the cooling load used. It consists of a boiler and a water heater to manufacture.

Therefore, the absorbent solution (water + lithium bromide) used as an absorbent in absorption chillers and cold and hot water coolers is excellent as an absorbent, but has a very strong corrosiveness to the metal, and if the absorbent solution is not properly managed, the corrosion inhibitor and the increase in alkalinity, Increased copper and iron ions and chlorine ions generate scales in the absorber solution tube, reducing the efficiency of the heat exchanger. Equipment damage, maintenance and operating costs can increase due to problems with absorbent solution contamination and reduced capacity, such as increased gas volume.

In order to solve the problems caused by the contamination of absorbent solution, it is installed in the circulation path of the absorbent solution, and the absorption liquid refining device of the absorption chiller and absorption cold / hot water machine which filters foreign substances such as iron, copper ions and scale generated in the absorption solution circulation path Utility Model Registration No. 1995-2328.

In the conventional absorbent liquid purification apparatus, a plurality of hollow fiber polymer fiber filters of the same size having a microporous membrane having a size of 0.005 μm to 1 μ mesh are disposed in parallel in one filter housing, and the absorbent liquid is simultaneously passed through a plurality of hollow fiber filter filters. To separate particles of contaminants from the absorbent liquid.

However, in the conventional fluid filtration apparatus in which a plurality of cartridge filters of the same standard are arranged in one filter housing in parallel, the number of filters increases according to the required filtration area, and in order to arrange a plurality of filtration filters in consideration of the fluid flow space, Since the size of the filtration apparatus is increased and the structure is also complicated, the cost factor can be increased, and there is a problem that the installation and maintenance of the filter are not easy.

In addition, since a plurality of small diameter filters are arranged in parallel in the fluid filtration device, the flow resistance of the fluid to be filtered may be increased, and contaminant particles of all sizes corresponding to the filtration should be filtered through the same filtration efficiency filter. Adsorption on the filter can shorten the life of the filter and reduce the filtration efficiency.

Accordingly, an object of the present invention is to simplify the structure of the device, to facilitate the installation and maintenance of the filter, to increase the filtration efficiency and to extend the life of the filter, an absorption chiller and an absorption chiller using the same. To provide.

1 is a side sectional view schematically showing a main portion of a fluid filtration device according to a first embodiment of the present invention;

2 is a schematic plan view of FIG. 1;

3 is a cross-sectional view taken along line III-III of FIG. 1;

4 is a front sectional view of the main part breaking of the filter of FIG.

5 is a side sectional view schematically showing a main portion of a fluid filtration device according to a second embodiment of the present invention;

FIG. 6 is a schematic diagram illustrating main parts of a cooling cycle and an aqueous solution circulation system of an absorption chiller and an absorption chiller as an example using the fluid filtration device of FIG. 1.

* Explanation of symbols for the main parts of the drawings

10,10 ': Fluid filtration device 11: Filter housing

12 flange 13 inlet

14: flange sealer 21: inspection window

25: magnetic member 29: first drain

31: second drain 41: hatch

47: outlet 53: backwash fluid supply pipe

71: first filter 72a, 74a: core

73: second filter 75, 76: filter sealer

80: carrying unit 81: frame

87: wheels 110: player

120: evaporator 130: condenser

140: Absorber

In order to achieve the above object, the present invention, in the fluid filtration device, the filter housing having an inlet for the fluid flow, one side is opened; A hatch that opens and closes the opening of the filter housing and has a discharge port through which fluid in the filter housing is discharged to the outside; A cylindrical first filter detachably provided in the filter housing and configured to filter the fluid introduced from the inlet; And at least one cylindrical second filter accommodated in the first filter to guide the fluid passing through the first filter to the outlet.

Here, the first filter and the second filter is preferably arranged concentrically.

The first filter is a pretreatment filtration filter to form a filtration hole that can filter out large particles of contaminants, and the second filter is a post-treatment filtration filter preferably has a filtration hole to filter out small particles of contaminants. This can not only increase the filtration efficiency by filtering the contaminated fluid step by step, but also extend the life of each filter.

The apparatus may further include a sealer provided at each end of each of the first filter and the second filter to prevent leakage of fluid, and one end of each of the first filter and the second filter may be in close contact with the bottom surface of the filter housing. It is more effective that each other end is in close contact with the bottom surface of the hatch.

And, it may further include a magnetic member provided in one region of the filter housing, to collect iron contained in the fluid flowing to the outlet.

In addition, a backwash fluid supply device which is provided in the outlet area and supplies a backwash fluid of water or gas to the first filter and the second filter to remove the adsorbed contaminants filtered by the first filter and the second filter. Wow; It is preferable to further include a drain provided in the bottom region of the filter housing for draining backwash fluid and filtered contaminants backwashed through the first filter and the second filter.

And a carrying unit mounted to the filter housing to move the filter housing, wherein the carrying unit includes a frame for receiving and supporting the filter housing; It is preferable to include a plurality of wheels provided in the bottom region of the frame to move the frame.

In addition, an object of the present invention has an absorber, a regenerator, an evaporator and a condenser absorbing, regenerating, evaporating and condensing using a heat source energy, a refrigerant and an absorbing solution, and a refrigerant and an absorbing solution flowing from the absorber to the regenerator. An absorption chiller having a fluid filtration device for filtering a portion of the fluid filtration device, the fluid filtration device includes: a filter housing having an inlet through which a refrigerant and an absorption solution are introduced; A hatch that opens and closes the opening of the filter housing and has a discharge port through which the refrigerant and the absorption liquid in the filter housing are discharged to the outside; A cylindrical first filter detachably provided in the filter housing and filtering the refrigerant and the absorption liquid introduced from the inlet; It is also achieved by an absorption chiller, characterized in that it comprises at least one cylindrical second filter accommodated in the first filter to filter the refrigerant and the absorbing solution passed through the first filter to guide the outlet.

Here, the first filter and the second filter is preferably arranged concentrically.

The first filter is a pretreatment filtration filter to form a filtration hole that can filter out large particles of contaminants, and the second filter is a post-treatment filtration filter preferably has a filtration hole to filter out small particles of contaminants. In addition, this can not only increase the filtration efficiency by filtering the contaminated refrigerant and the absorbing solution in stages, but also extend the life of each filter.

The apparatus may further include a sealer provided at each end of each of the first filter and the second filter to prevent leakage of the refrigerant and the absorbing solution, and one end of each of the first filter and the second filter may have a bottom surface of the filter housing. It is more effective that the other end is in close contact with the bottom surface of the hatch.

The magnetic member may further include a magnetic member provided in one region of the filter housing to collect iron contained in the refrigerant and the absorption liquid flowing into the outlet.

In addition, a backwash fluid supply device which is provided in the outlet area and supplies a backwash fluid of water or gas to the first filter and the second filter to remove the adsorbed contaminants filtered by the first filter and the second filter. Wow; It is preferable to further include a drain provided in the bottom region of the filter housing for draining backwash fluid and filtered contaminants backwashed through the first filter and the second filter.

In addition, the fluid filtration device may be separately installed in a plurality of absorption chillers, but an embodiment in which one fluid filtration device is used in consideration of economical efficiency of a facility may be installed in the filter housing to move the filter housing. Further comprising a carrying portion, The carrying portion, the frame for receiving and supporting the filter housing; It is preferable to include a plurality of wheels provided in the bottom region of the frame to move the frame.

It is also an object of the present invention to produce cold water and hot water by absorbing, regenerating, evaporating, condensing and heating by using a heat source energy, a refrigerant, and an absorbing solution, and having an absorber, a regenerator, an evaporator, a condenser, and a water heater. In an absorption type hot and cold water purifier having a fluid filtering device for filtering a portion of the refrigerant and the absorbing solution flowing from the regenerator, the fluid filtering device has a filter housing having an inlet through which the refrigerant and the absorbing solution are introduced; ; A hatch that opens and closes the opening of the filter housing and has a discharge port through which the refrigerant and the absorption liquid in the filter housing are discharged to the outside; A cylindrical first filter detachably provided in the filter housing and filtering the refrigerant and the absorption liquid introduced from the inlet; It is also achieved by the absorption type cold and hot water heater, characterized in that it comprises at least one cylindrical second filter accommodated in the first filter, the refrigerant and the absorption solution passed through the first filter to guide the discharge port.

Here, the first filter and the second filter is preferably arranged concentrically.

The first filter is a pretreatment filtration filter to form a filtration hole that can filter out large particles of contaminants, and the second filter is a post-treatment filtration filter preferably has a filtration hole to filter out small particles of contaminants. In addition, this can not only increase the filtration efficiency by filtering the contaminated refrigerant and the absorbing solution in stages, but also extend the life of each filter.

The apparatus may further include a sealer provided at each end of each of the first filter and the second filter to prevent leakage of the refrigerant and the absorbing solution, and one end of each of the first filter and the second filter may have a bottom surface of the filter housing. It is more effective that the other end is in close contact with the bottom surface of the hatch.

The magnetic member may further include a magnetic member provided in one region of the filter housing to collect iron contained in the refrigerant and the absorption liquid flowing into the outlet.

In addition, a backwash fluid supply device which is provided in the outlet area and supplies a backwash fluid of water or gas to the first filter and the second filter to remove the adsorbed contaminants filtered by the first filter and the second filter. Wow; It is preferable to further include a drain provided in the bottom region of the filter housing for draining backwash fluid and filtered contaminants backwashed through the first filter and the second filter.

The fluid filtration apparatus may be separately installed in a plurality of absorption cold and hot water heaters, but the fluid filtration apparatus may be moved in consideration of the economics of the facility. The fluid filtration apparatus may be installed in the filter housing to move the filter housing. Further comprising a carrying portion, The carrying portion, the frame for receiving and supporting the filter housing; It is preferable to include a plurality of wheels provided in the bottom region of the frame to move the frame.

Hereinafter, various embodiments of the present invention will be described with reference to the accompanying drawings.

Prior to the description, in various embodiments, components having the same configuration will be representatively described in the first embodiment using the same reference numerals, and in other embodiments, only the configuration different from the first embodiment will be described. do.

1 is a schematic cross-sectional side view of a main portion of a fluid filtration apparatus according to a first embodiment of the present invention, FIG. 2 is a schematic plan view of FIG. 1, and FIG. 3 is a cross-sectional view taken along line III-III of FIG. 1. As shown in these figures, the fluid filtration device 10 has a filter housing 11 having an inlet 13 through which fluid flows and an opening at one side thereof, and opening and closing an opening of the filter housing 11 to filter the housing. 11, a hatch 41 having an outlet 47 for discharging the filtered fluid in the outside, a flange sealer 14 sealed between the flange 12 of the filter housing 11 and the hatch 41, and a filter. A cylindrical first filter 71 detachably provided in the housing 11 to filter the fluid introduced from the inlet 13, and a fluid accommodated in the first filter 71 and passed through the first filter 71. It has the cylindrical second filter 73 which filters and guides it to the discharge port 47. FIG.

The filter housing 11 forms an airtight filtration area therein and has a cylindrical shape open at one side. An open side of the filter housing 11 is provided with a flange 12 that is bolted to the hatch 41, and an inlet 13 through which fluid flows into the filter housing 11 in an outer region of the filter housing 11. Is provided.

The inlet 13 is connected to the inlet pipe 15 through which the fluid flowing into the filter housing 11 flows from the outside, and checks the pressure of the fluid flowing into the inlet 13 in one region of the inlet 13. The first pressure gauge 16 is mounted. The inlet pipe 15 is provided with an inlet opening / closing valve 17 for controlling the flow of the fluid flowing into the filter housing 11 and an inlet check valve 18 for preventing the backflow of the fluid flowing into the filter housing 11. have.

An inspection window 21 made of a transparent body is mounted on one outside of the filter housing 11 to inspect the inside of the filter housing 11 and the contamination state of the first filter 71.

The bottom region of the filter housing 11 is provided with a precipitation section 23 in which iron and the like contained in the fluid flowing toward the outlet 47 are precipitated. The precipitation part 23 is located inside the second filter 73 so as to communicate with the second filter 73. The precipitation part 23 is equipped with a magnetic member 25 for collecting iron powder. One region of the precipitation section 23 is provided with a check opening 27 for checking the settled state of the collected iron and foreign matter on the magnetic member 25, the check opening 27 is closed by a cap (28).

In the bottom region of the filter housing 11, a plurality of drain holes 29 and 31 are provided to drain backwash fluid for removing contaminant particles filtered by the filters 71 and 73 to the outside of the filter housing 11. . The drain hole is provided between the inner circumference of the filter housing 11 and the outer circumference of the first filter 71 to discharge the contaminant particles filtered by the first filter 71 to the outside together with the backwashing fluid. 29 and a second drain 31 interposed between the first filter 71 and the second filter 73 to drain contaminant particles filtered by the second filter 73 to the outside together with the backwashing fluid. Each of the drain holes 29 and 31 is connected to the drain pipe 33. The drain openings 29 and 31 are provided with drain opening / closing valves 32 and 34 for opening and closing the backwash fluid flowing through the drain pipe 33 and the discharge of the filtered contaminants.

It is possible to easily mount the first filter 71 and the second filter 73 on the inner bottom surface of the filter housing 11, and to fix the lower ends of the respective filters 71 and 73 to the filter housing 11. The 1st protrusion part 35 and the 2nd protrusion part 37 for this are provided. Each of the protrusions 35 and 37 is concentric and protrudes from the plate surface at predetermined intervals corresponding to the circumference of the lower ends of the filters 71 and 73. The first protrusion 35 is in close contact with the circumference of the lower end of the first filter 71, and the second protrusion 37 is in close contact with the circumference of the lower end of the second filter 73.

On the other hand, the hatch 41 which opens and closes the opening of the filter housing 11 is provided in the upper end of the filter housing 11. The flange 12 and the hatch 41 of the filter housing 11 are fastened by a plurality of bolts, and one of the plurality of bolts has a handle nut 63 and a fixing bolt 62 to prevent separation when the hatch is opened. , The hatch detachment prevention member 60 which consists of the bracket 61 which supports the fixing bolt 62 and is fixed to the filter housing 11, and the lock nut 64 which fixes the fixing bolt 62 to the bracket 61. A flange sealer 14 is provided between the bottom of the hatch 41 and the upper end of the filter housing 11 to prevent the fluid in the filter housing 11 from leaking to the outside.

An outlet 47 is provided in the substantially central region of the hatch 41 to discharge the fluid filtered through the second filter 73 to the outside, and the outlet 47 is in communication with the inside of the second filter 73. . The outlet 47 is connected to the discharge pipe 49 through which the fluid discharged from the filter housing 11 flows, and a second pressure for checking the pressure of the fluid discharged through the discharge port 47 in one region of the discharge port 47. Gauge 50 is mounted. The discharge pipe 49 is provided with a discharge opening / closing valve 51 for controlling the flow of the fluid discharged from the filter housing 11 and a discharge check valve 52 for preventing the back flow of the fluid discharged from the filter housing 11. .

In addition, a backwash fluid supply pipe 53 for supplying backwash fluid to the first filter 71 and the second filter 73 is branched into the discharge pipe 49. The backwash fluid supply pipe 53 has a backwash opening / closing valve 54 for controlling the flow of backwashing fluid flowing into the filter housing 11 and a backwash check valve 55 for preventing backflow of the backwashing fluid flowing into the filter housing 11. ) Is provided. Therefore, in order to remove the filtered contaminants adsorbed on the first filter 71 and the second filter 73 backwashing, the inlet opening and closing valve 17 and the discharge opening and closing valve 51 are closed, and the backwashing opening and closing valve ( 54) and the drain opening / closing valves 32 and 34 are opened to supply the backwash fluid into the filter housing 11. The backwash fluid supplied into the filter housing 11 removes contaminants deposited on the filters 71 and 73 while passing through the filtration directions of the filters 71 and 73, and at the same time, each drain ( 29, 31 and the drain pipe 33 is drained to the outside.

In addition, the upper surface of the hatch 41 is provided with a handle 57 for holding the hatch 41, the fastening bolt 59 is coupled through the circumference of the hatch (41).

The fastening bolt 59 is coupled with the support ribs 56 disposed at predetermined intervals along the upper circumference of the filter housing 11, and the fluid filtering device 10 according to the present invention is fastened by the fastening bolts 59. The filter housing 11 and the hatch 41 of the can be opened and closed.

Between the bottom face of the hatch 41 and the bottom face in the filter housing 11, a pair of filters 71 and 73 for filtering the fluid are detachably coupled. The filter includes a first filter 71 for pre-filtering the fluid introduced from the inlet 13, and a second filter 73 for post-processing and filtering the fluid having passed through the first filter 71 to the outlet 47. Is done.

The first filter 71 and the second filter 73 are arranged concentrically. The first filter 71 is disposed adjacent to the inner circumference of the filter housing 11, and the second filter 73 is accommodated at a predetermined interval in the first filter 71. As shown in FIG. 4, each filter 71 and 73 has the cylindrical shape which opened at both ends, and is formed with the filtration hole (or the pore) corresponding to pre-treatment filtration efficiency and post-treatment filtration efficiency. Here, the size of the filtration holes (or pores) of the first filter 71 is preferably larger than the size of the filtration holes (or pores) of the second filter 73. Accordingly, the contaminants in the fluid are filtered step by step according to the particle size, thereby increasing the filtration efficiency of each filter (71, 73), it is possible to extend the life of the filter (71, 73).

4 is a front sectional view of the main part breaking of the filter of FIG. 1. The filter cores 72 and 74 of the respective filter filters 71 and 73 support the filter media 72 and 74 and have a cylindrical core 72a having a porous flow port (not shown) for flowing the filtered fluid. 74a) is provided in close contact with the inner surfaces of the respective filter media 72,74.

In addition, filter sealers 75 and 76 are provided at both ends of each filter 71 and 73 to prevent leakage of fluid, and the filter sealers 75 and 76 are sealed to the front and rear surfaces of the end caps 77 and 78. It is. Lower ends of the filters 71 and 73 are in close contact with the bottom surface of the filter housing 11, and upper ends are provided in close contact with the bottom surface of the hatch 41. Lower ends of the filters 71 and 73, which are in close contact with the bottom surface of the filter housing 11, may include first and second protrusions 35 and second protrusions provided on the bottom surface of the filter housing 11 to prevent shaking during the flow of the fluid. 37).

By this configuration, the fluid flowing from the inlet pipe 15 is introduced into the filter housing 11 via the inlet 13.

The fluid introduced into the filter housing 11 flows to the first filter 71, and the particles contained in the fluid larger than the size of the filtration holes (or the pores) of the second filter 73 are transferred to the first filter ( The large particles in the fluid are deposited on the outer surface of 71) and undergo pretreatment filtration.

Subsequently, the small particles contained in the fluid pre-filtered by the first filter 71 are subjected to post-treatment filtration through the second filter 73 and discharged to the outside through the outlet 47.

Accumulation of pollutants in each filter (71,73) increases according to the concentration of contaminants in the fluid and the period of use. As a result, clogging of filter holes (not shown) also increases, which impairs the flow of the fluid. Is lowered. In this case, a differential pressure is generated on the first pressure gauge 16 on the fluid inlet 13 side and the second pressure gauge 50 on the fluid outlet 47 side due to the resistance accompanying fluid flow disturbance. Depending on the degree of the differential pressure, measures are required to replace the filter (71, 73) or backwash to remove the contaminants and reuse the filter. When pressure gauges (16,50) reach a set differential pressure that requires backwashing, The inlet and outlet of the fluid to be filtered into the filter housing 11 is blocked through the inlet opening and closing valve 17 and the outlet opening and closing valve 51, and the backwash fluid on-off valve 54 and the drain opening and closing valve 32 and 34. Open to supply the backwash fluid into the filter housing 11 through the backwash fluid supply pipe (53).

The backwash fluid flowing into the filter housing 11 flows toward the first filter 71 via the second filter 73. At this time, a part of the backwash fluid flowing through the second filter 73 to the first filter 71 is transferred to the outside through the second drain 31 with the pollutant particles deposited on the second filter 73. The remaining backwash fluid is drained to the outside through the first drain port 29 along with the contaminant particles deposited on the first filter 71 while passing through the first filter 71. As a result, the contaminant particles deposited on the filters 71 and 73 are removed, so that the filters 71 and 73 can be reused and the filtration of the fluid can be smoothed.

Meanwhile, FIG. 5 is a schematic side sectional view of a main portion of the fluid filtration device according to the second embodiment of the present invention. Unlike the first embodiment described above, FIG. 5 is a fluid filtration device 10 'according to the second embodiment of the present invention. ) Has a carrying portion 80 mounted to the filter housing 11 to move the fluid filtration device 10.

The conveying unit 80 includes a frame 81 which accommodates and supports the filter housing, a bracket (not shown) which couples the filter housing 11 and the support member 83, a handle of the conveying unit 88, and a frame ( A wheel 87 is provided in the bottom region of 81 to move the filter housing 11 and have one or more braking brakes (not shown).

The frame 81 has a plate shape, and a plurality of support members coupled to a plurality of brackets (not shown) formed on an outer surface of the filter housing 11 around the upper portion of the frame 81 to support the filter housing 11. (83) is standing up.

The upper portion of the frame 81 is a self-circulating pump 85 which is placed on the fluid filtration device for filtration of a fluid which does not use a large pump on the device used for filtration of the fluid and without a circulation pump on the device. Is fitted. The inlet port (not shown) of the fluid circulation pump 85 is connected to the supply pipe of the fluid use facility, and the outlet port (not shown) of the fluid circulation pump 85 is the fluid inlet pipe 15 for guiding the fluid into the filter housing 11. Connected with Here, the fluid circulation pump 85 may be selectively interposed in the fluid filtration device 10 'according to the present invention.

Here, the inlet pipe 15, the drain pipe 33, the backwash fluid supply pipe 53 and the discharge pipe 49 connected to the pipe of the fluid use facility is a flexible connector or a high pressure hose connector that is easy to connect and dismantle and has pressure resistance and corrosion resistance It is preferable that it consists of.

As a result, the object of the present invention can be achieved, as well as the fluid filtration device 10 'according to the present invention can be used while freely moving to a desired fluid use place.

Hereinafter, as an exemplary embodiment using the fluid filtration device according to the first and second embodiments of the present invention, an absorption chiller and a cold / hot water machine 100 will be described.

In general, absorption chillers and cold and hot water machines are the source of heat energy, and is a machine for producing cold water using an absorption solution, which is a mixture of lithium bromide as an absorbent and water as a refrigerant.

Prior to describing the present embodiment, the basic principles and operations of the absorption chiller and the cold and hot water heater 100 according to the present invention may be regarded as the same as in the prior art, and thus, the description thereof is omitted and the fluid filtration device 10 and the absorption type according to the present invention are omitted. The main points related to the action of the absorption solution and the circulation system in the cooling cycle of the freezer and the cold and hot water heater 100 are as follows.

FIG. 6 is a schematic diagram illustrating main parts of a cooling cycle and an absorption solution circulation system of the absorption chiller and the cold / hot water heater 100 as an example using the fluid filtration device of FIG. 1.

As shown, the absorption chiller and the cold and hot water machine 100, the evaporator 120 for producing cold water of low temperature using the evaporation of the refrigerant (water) and the refrigerant vapor generated in the evaporator 120 using the absorption solution absorbs. Between the absorber 140 and the regenerator 110 which regenerates the dilute solution into a concentrated solution and generates a high temperature refrigerant vapor, and the hot concentrated solution supplied from the regenerator 110 and the dilute solution supplied from the absorber 140. A solution heat exchanger 170 which is an energy saving device for reducing the consumption of heat used in the regenerator 110 and a cooling load used in the absorber 140 through heat exchange, a solution pump 160 for forced circulation of the absorbing solution, A refrigerant pump 150 for forced circulation of the refrigerant, a heating heat source inlet tube 111 and a heating heat source outlet tube 112 connected to a heat exchanger housed in the regenerator 110, and a heat transfer tube accommodated in the condenser 130 and the absorber 140. Connected to Cooling water inlet pipe 131 and the cold water discharge pipe 121 and the cold water inlet pipe connected to the heat transfer pipe accommodated in the evaporator 120 and the high temperature cooling water inlet pipe 131 connected to the condensation heat pipe disposed in the condenser 130 A coolant suction pipe 151 and a coolant discharge pipe 152 for injecting the coolant onto the cold water heat pipe while recycling the coolant in the evaporator 120, a hot regenerator, a hot heat exchanger, a water heater, It is composed of a crystal prevention device, a bleeding device, a boiler for producing hot water (or steam) for a heat source, a water heater, and the like, and the absorber 140, the solution heat exchanger 170, and the regenerator 110 by the solution pump 160. It has a fluid filtration device 10 for filtering while recirculating a portion of the absorbent solution flowing therebetween.

The refrigerant liquid flowing from the condenser 130 to the evaporator 120 accumulates in the refrigerant storage unit formed at the lower portion of the evaporator 120 maintaining a high vacuum of about 6 mmHg. The refrigerant circulation pump 150 inhales the refrigerant liquid through the refrigerant liquid suction pipe 151 and sends the refrigerant liquid through the refrigerant liquid discharge pipe 152 to the injector disposed above the evaporator 120, and sends the refrigerant liquid to the cold water heat transfer tube in the evaporator 120. Cooling water is prepared by spraying the coolant liquid to absorb the heat of cold water flowing into the heat transfer tube using latent heat of evaporation. Cold water is sent to the cooling load facility through the cold water discharge pipe 121 and the cold water warmed by absorbing the cooling load is recycled to the evaporator 120 through the cold water inlet pipe 122, mixed in the absorber 140 (mixed) concentrated solution) Since the pressure in the evaporator 120 is maintained at a low pressure due to the absorption action of absorbing the refrigerant, the refrigerant injected onto the cold water heat transfer tube in the evaporator 120 continues to evaporate, thus producing cold water.

The solution pump 160 sucks the dilute solution through the dilute solution suction pipe 161 from the solution reservoir configured in the absorber 140, and sends the dilute solution to the solution heat exchanger 170 and the mixed solution inlet pipe 164. The dilution solution of which the temperature is elevated by heat exchange while flowing in the solution heat exchanger 170 is supplied to the regenerator 110 through the inlet pipe 162.

The diluent solution supplied to the regenerator 110 is connected to the heating heat source inlet pipe 111 and the heating heat source discharge pipe 112 to be reheated by a heating heat pipe configured in the regenerator 110, and the refrigerant vapor and the concentrated solution at high temperature. It is separated into (strong concentrated solution), the dilute solution is regenerated into a concentrated solution and the refrigerant vapor is condensed by heat exchange with the concentrated solution, the condensed refrigerant liquid is sent to the condenser (130). After the high temperature concentrated solution in the regenerator 110 solution storage unit is sent to the solution heat exchanger 170 through the concentrated solution discharge pipe 163 and heat-exchanged with the dilute solution toward the regenerator 110 via the solution heat exchanger 170, Branched from the dilution solution discharge pipe 161 through the concentrated solution discharge pipe 163 and mixed with the dilution solution to send a portion of the dilution solution to the absorber 140 to be a mixed solution state mixed solution inlet pipe 164 and absorber 140 It is sprayed on the cooling heat pipe constructed in the absorber 140 through the injector inside. The sprayed mixed solution absorbs the moisture in the process of absorbing the refrigerant vapor evaporated from the evaporator 120, and the concentration is diluted. do. The dilution solution is regenerated into a concentrated solution, mixed with a solution, and recycled to the dilution solution by the action of absorbing the refrigerant vapor again.

Cooling water cooled from a cooling tower (not shown) cools the mixed solution injected onto the cooling heat pipes formed in the absorber 140 through the cooling water inlet pipe 131, and then passes through the condensation heat pipes formed in the condenser 130. After condensing the refrigerant vapor in 130, the warmed coolant is recycled to the cooling tower through the coolant discharge pipe 132 for recooling.

Accordingly, the filtration system of the fluid filtration device is sucked through the dilution solution suction tube 161 from the solution reservoir in the absorber 140 and flows a part of the dilution solution toward the solution heat exchanger 170 through the inlet tube 15. Contaminants such as iron, copper ions, and excess scale generated in the absorption solution circulation path by pretreatment filtration through the first filter configured in the fluid filtration device 10, and then through the second filter After the post-treatment filtration, the purified solution is supplied into the regenerator 110 through the discharge pipe 49, and the entire used solution reaches the clean state of the prescribed solution through the continuous recycling filtration cycle.

By such a configuration, the absorption chiller and the cold / hot water machine according to the embodiment of the present invention efficiently produce cold water by absorption, regeneration, evaporation, and condensation using heat source energy, a refrigerant (water), and a purified absorption solution. .

As such, the absorption chiller and the cold / hot water machine can efficiently filter contaminants such as iron, copper ions, and scale generated in the circulation path of the absorbing solution and the refrigerant, thereby reducing the efficiency of the heat exchanger due to accumulation of contaminants such as scale. It can prevent the adverse effects and losses such as shortening the life of equipment caused by erosion damage of heat exchanger tube and increasing the amount of gas generated inside the machine due to the decrease of absorption capacity, and also can reduce maintenance cost and fluid. It simplifies the structure of the filtration device, facilitates the installation and maintenance of the filter, and increases the filtration efficiency and extends the life of the filter through pre- and post-treatment filtration.

In addition, by accommodating and arranging other cylindrical filters within one cylindrical filter at predetermined intervals, the filter is easily installed and maintained, and pre- and post-treatment filtration is possible, thereby increasing the filtration efficiency and extending the life of the filter. Can be extended.

Meanwhile, in the above-described embodiments, the first filter and the second filter are concentrically arranged in the fluid filtration apparatus, but the plurality of concentrically with respect to the first and second filters are arranged in the second filter. You can also provide a filter. At this time, the size of the filtration holes of the second filter is preferably larger than the size of the filtration holes of the plurality of filters.

In addition, in the above-described embodiments as described above as an external pressure structure in which fluid flows from the outside of the filter to the inside, it may be a pressure-resistant structure in which fluid flows from the inside of the filter to the outside. It is formed around the outside, and it is preferable that the inflow and outflow paths of the fluid are also converted to pressure resistant.

In the above-described embodiments, the filter and the filter housing have been described above in a cylindrical structure, but of course, the present invention may also be applied to other types of structures such as squares.

In addition, in the above-described embodiments, only the magnetic member which adsorbs and separates iron powder in a predetermined region of the fluid filtration device has been described above. However, in order to prevent corrosion problems occurring in the magnetic member, corrosion treatment may be performed, and according to filtration purposes, The magnetic element may be excluded from the fluid filtration device.

In the above-described embodiments, the filtration of the refrigerant and the absorbing solution of the absorption chiller and the absorption chiller / heater is described above. Of course.

In addition, in the above-described embodiment of the absorption chiller and the cold and hot water dispenser, the inlet pipe flowing into the filtration device is branched from the discharge pipe adjacent to the aqueous solution pump, and the filtered solution is directly supplied to the regenerator through the discharge pipe. Depending on the structure of the solution, the solution can be applied to the filtration system, and the supply of the filtration solution to the absorption chillers and the cold and hot water can be applied through other routes.

Although the above embodiments have been described above with respect to the manually controlled backwash structure, the automatic backwashing may be performed by configuring an automatic control device such as a differential pressure switch and an electric valve that sense and operate a fluid flow resistance of the filter.

In addition, in the above-described embodiments, the inlet and outlet of the fluid filtration device are shown as a flange connection method, but may be manufactured by a screw type or a coupling type that is easy to connect.

In the above-described embodiments, the fixing protrusion is formed on the bottom of the filter housing in order to mount and fix the first filter and the second filter in the filter housing. However, the first filter and the second filter except the filter fixing protrusion in the filter housing are formed. It can also be used as a removable fixing member for receiving and fixing a filter.

In addition, in the above-described embodiments, the mounting of one inspection window for inspecting the inside through the inside of the filter housing is described above, but a plurality of inspections for individually inspecting the contamination state of the first filter and the second filter are provided. It is also possible to install a window, and if the inspection window is unnecessary, the filter housing that excludes the inspection window is also applied.

In addition, in the above-described embodiments, the backwashing device for removing contaminants by backwashing the contaminated filter in the filter housing in the reverse direction of the filtration, but the backwashing device is excluded when the filter used is disposable or no backwashing is necessary. to be.

In the above-described embodiments, the size of the filtration hole of the first filter is preferably larger than that of the filtration hole of the second filter. However, the size of the filtration hole of the first filter and the filtration hole of the second filter may be the same. have.

In addition, although the above-described fluid filtration device of the absorption chiller and the cold and hot water machine has been described above to configure the transport unit and its own fluid circulation pump which can be moved and used, the fluid filtration in the absorption chiller and the absorption cold / hot water device without the transport unit and its own fluid circulation pump. Only the device can be mounted.

As described above, according to the present invention, a fluid filtration device that can simplify the structure of the device, facilitate the installation and maintenance of the filter, increase the filtration efficiency and extend the life of the filter, and an absorption chiller and an absorption type using the same. Provide cold and hot water.

Claims (21)

In a fluid filtration device, A filter housing having an inlet through which fluid is introduced and having one side opened; A hatch that opens and closes the opening of the filter housing and has a discharge port through which fluid in the filter housing is discharged to the outside; A cylindrical first filter detachably provided in the filter housing and configured to filter the fluid introduced from the inlet; And at least one cylindrical second filter accommodated in the first filter to filter and direct the fluid having passed through the first filter to the outlet. The method of claim 1, And the first filter and the second filter are arranged concentrically. The method of claim 1, The size of the filtration hole of the first filter is larger than the size of the filtration hole of the second filter. The method of claim 1, A sealer provided at both ends of the first filter and the second filter to prevent leakage of the fluid; Each end of the first filter and the second filter is in close contact with the bottom surface of the filter housing, each other end is in close contact with the bottom surface of the hatch. The method of claim 1, And a magnetic member provided in one region of the filter housing to collect iron contained in the fluid flowing to the outlet. The method of claim 1, A backwash fluid supply device provided in the outlet area and supplying backwash fluid to the first filter and the second filter; And a drain hole provided in the bottom region of the filter housing and draining backwashed fluid and filtered contaminant particles backwashed through the first filter and the second filter to the outside. The method of claim 1, And a carrying part mounted to the filter housing to move the filter housing. The carrying unit, A frame accommodating and supporting the filter housing; And a plurality of wheels provided at a bottom region of the frame to move the frame. A fluid filtration device having an absorber, a regenerator, an evaporator, and a condenser that absorbs, regenerates, evaporates, and condenses using heat source energy, a refrigerant, and an absorbing solution, and filters a portion of the refrigerant and the absorbing solution flowing from the absorber to the regenerator. In the absorption chiller having a, The fluid filtration device, A filter housing having an inlet through which a refrigerant and an absorbing solution flow, and having one side opened; A hatch that opens and closes the opening of the filter housing and has a discharge port through which the refrigerant and the absorption liquid in the filter housing are discharged to the outside; A cylindrical first filter detachably provided in the filter housing and filtering the refrigerant and the absorption liquid introduced from the inlet; And at least one cylindrical second filter accommodated in the first filter and configured to filter the refrigerant and the absorbing solution that have passed through the first filter to guide the discharge port. The method of claim 8, And the first filter and the second filter are arranged concentrically. The method of claim 8, The size of the filtration hole of the first filter is the absorption chiller, characterized in that larger than the size of the filtration hole of the second filter. The method of claim 8, A sealer provided at both ends of the first filter and the second filter to prevent leakage of the refrigerant and the absorbing solution, Each end of the first filter and the second filter is in close contact with the bottom surface of the filter housing, the other end is in close contact with the bottom surface of the hatch. The method of claim 8, And a magnetic member provided in one region of the filter housing to collect iron contained in the refrigerant flowing in the regenerator and the absorbent solution. The method of claim 8, A backwash fluid supply device provided in the outlet area and supplying backwash fluid to the first filter and the second filter; And a drain hole provided in the bottom region of the filter housing and draining backwashed fluid and filtered contaminant particles backwashed through the first filter and the second filter to the outside. The method of claim 8, A carrying part mounted to the filter housing to move the filter housing; The carrying unit, A frame accommodating and supporting the filter housing; And a plurality of wheels provided at a bottom region of the frame to move the frame. It absorbs, regenerates, evaporates, condenses, and heats using heat source energy, a refrigerant, and an absorbing solution to produce cold water and hot water. And a cold filtration device having a fluid filtration device for filtering a part of the absorbent solution. The fluid filtration device, A filter housing having an inlet through which a refrigerant and an absorbing solution flow, and having one side opened; A hatch that opens and closes the opening of the filter housing and has a discharge port through which the refrigerant and the absorption liquid in the filter housing are discharged to the outside; A cylindrical first filter detachably provided in the filter housing and filtering the refrigerant and the absorption liquid introduced from the inlet; And at least one cylindrical second filter accommodated in the first filter and configured to filter the refrigerant and the absorbing solution that have passed through the first filter to guide the discharge port. The method of claim 15, And the first filter and the second filter are arranged concentrically. The method of claim 15, The size of the filter holes of the first filter is absorption cold and hot water, characterized in that larger than the size of the filter holes of the second filter. The method of claim 15, A sealer provided at both ends of the first filter and the second filter to prevent leakage of the refrigerant and the absorbing solution, One end of each of the first filter and the second filter is in close contact with the bottom surface of the filter housing, each other end is in close contact with the bottom surface of the hatch absorption cold and hot water. The method of claim 15, And a magnetic member provided in one region of the filter housing to collect iron contained in the refrigerant flowing in the regenerator and the absorbent solution. The method of claim 15, A backwash fluid supply device provided in the outlet area and supplying backwash fluid to the first filter and the second filter; And a drain hole provided in the bottom region of the filter housing and draining backwashed fluid and filtered contaminant particles backwashed through the first filter and the second filter to the outside. The method of claim 15, And a carrying part mounted to the filter housing to move the filter housing. The carrying unit, A frame accommodating and supporting the filter housing; And a plurality of wheels provided at a bottom region of the frame to move the frame.