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WO2015152439A1 - Équipement de récupération de chaleur des eaux usées de lavage à contre-courant - Google Patents

Équipement de récupération de chaleur des eaux usées de lavage à contre-courant Download PDF

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Publication number
WO2015152439A1
WO2015152439A1 PCT/KR2014/002805 KR2014002805W WO2015152439A1 WO 2015152439 A1 WO2015152439 A1 WO 2015152439A1 KR 2014002805 W KR2014002805 W KR 2014002805W WO 2015152439 A1 WO2015152439 A1 WO 2015152439A1
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WO
WIPO (PCT)
Prior art keywords
wastewater
waste
outlet
inlet
fresh water
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Ceased
Application number
PCT/KR2014/002805
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English (en)
Korean (ko)
Inventor
김찬호
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sns Energy Inc
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Sns Energy Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sns Energy Inc filed Critical Sns Energy Inc
Priority to PCT/KR2014/002805 priority Critical patent/WO2015152439A1/fr
Publication of WO2015152439A1 publication Critical patent/WO2015152439A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0012—Recuperative heat exchangers the heat being recuperated from waste water or from condensates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56—Heat recovery units

Definitions

  • the present invention relates to a wastewater heat recovery facility, and more particularly, to a backwash wastewater heat recovery facility that can improve heat exchange efficiency by preventing a temperature drop even when backwashing is performed in a wastewater heat recovery facility.
  • 1 is a schematic diagram schematically showing the structure of a conventional wastewater heat recovery facility.
  • a conventional wastewater heat recovery facility that recovers and reuses wastewater heat generally includes a wastewater collection tank 1 in which high-temperature wastewater is stored, a fresh water tank in which low-temperature fresh water (cold water) is stored, and a high-temperature wastewater heat recovery facility.
  • a heat exchanger (3) for exchanging waste water and low temperature fresh water
  • a wastewater transfer pump (4) for transferring hot wastewater stored in the wastewater collection tank (1) to a waste inlet (3a) of the heat exchanger (3)
  • a wastewater transfer pump ( 4) and the net filter 5 installed between the waste inlet 3a of the heat exchanger 3, the wastewater outlet 6 connected to the waste outlet 3b of the heat exchanger 3, and the fresh water at low temperature.
  • the mesh filter 5 It consists of a fresh water pump (7) to be transferred to the fresh water inlet (3c) of the machine (3), the hot water tank (8) connected to the fresh water outlet (3d) of the heat exchanger (3).
  • the waste inlet (5a) of the mesh filter (5) is connected to the waste water transfer pump (4) by a pipe, the waste outlet (5b) of the mesh filter (5) is the waste inlet of the heat exchanger (3) It is connected to the pipe 3a), the mesh filter 5 is provided with a mesh filter network (5c).
  • the conventional wastewater heat recovery facility configured as described above includes a wastewater collection tank (1) in which hot wastewater is stored, a fresh water tank (2) in which cold water is stored at low temperature, and a hot water tank in which fresh water is changed by fresh water by heat recovered from hot wastewater ( 8) Connect the pipe, but install a heat exchanger (3), waste water, and fresh water transfer pump (4) and (7) in the pipe, and in the fresh water at low temperature, the fresh water in the fresh water tank (2) by the fresh water transfer pump (7).
  • the fresh water inlet 3c of the heat exchanger 3 and the fresh water outlet 3d of the heat exchanger 3 are transferred to the fresh water outlet 3d of the heat exchanger 3.
  • the wastewater of the wastewater collection tank 1 is discharged to the fresh water outlet 3d of the heat exchanger 3 via the waste inlet 3a of the heat exchanger 3 and the heat exchange wastewater passage by the wastewater transfer pump 4. As it is conveyed, it is to recover the heat of the waste water while flowing in the opposite direction in the heat exchanger (3).
  • Most wastewater heat recovery facilities include heat exchanger wastewater passages in wastewater, except when the heat exchanger wastewater passage clogging time is prolonged because the wastewater passage is very wide like spiral type heat exchangers.
  • the wastewater passage is blocked due to various foreign matters, and the heat exchange efficiency of the heat exchanger decreases in a short time or the heat exchanger user cannot be connected to connect the waste water transfer pump 4 and the heat exchanger 3 of the waste water heat recovery facility.
  • the net type filter 5 is provided in piping.
  • the net filter (5) or perforated filter which is mostly installed and used in the existing wastewater heat recovery facility, has a structure in which the filter structure does not completely filter fine foreign matter or fibrous material.
  • Some wastewater heat recovery facilities of the conventional wastewater heat recovery facilities alternately install two sand filters with excellent filtration performance in order to compensate for the shortcomings of the mesh type filter. It is clogged within a short time, and backed by a sand filter, which is blocked by foreign filtration, to discharge the foreign matter filtered at intervals of 2 to 3 minutes.
  • the backwashing water used for backwashing for filtration foreign matter is passed through the heat exchanger to exchange heat with fresh water (cold water), and the cold wastewater discharged as backwashing water is used as backwashing water. It is.
  • the present invention was derived to solve the above problems, even if the filter is easily washed and backwash at the same time when the foreign matter caught in the filter when the wastewater heat is recovered by using the wastewater heat recovery facility It is an object of the present invention to provide a backwash wastewater heat recovery system capable of improving the heat exchange efficiency by preventing a temperature drop.
  • the present invention is a waste water collection tank is stored high temperature wastewater and the waste outlet; Fresh water tank for storing fresh water of low temperature; Including a fresh water inlet connected to the fresh water tank, a waste water inlet connected to the waste water collection tank, a fresh water outlet to discharge fresh water introduced into the fresh water inlet, and a waste water outlet to discharge wastewater introduced into the waste water inlet, A heat exchanger for heat-exchanging hot waste water and cold fresh water; A wastewater outlet connected to the wastewater outlet; A hot water tank connected to the fresh water outlet; A waste inlet connected to the waste inlet and installed with a valve, wastewater passing through the waste inlet is discharged and connected to a waste inlet of the heat exchanger, and is installed between the waste inlet and the waste outlet, A first particle filter having one end connected to the waste inlet and the other end connected to the waste outlet and having a first backwashing tube provided with a valve to enable backwashing; And backwash wastewater heat recovery comprising a wastewater inlet connected to the wastewater outlet,
  • a valve is installed at the waste inlet so that the second particle filter can be backwashed, and the second particle filter has one end connected to the waste inlet and the other end connected to the waste outlet, and a second backwash pipe having a valve installed therein. It may be provided.
  • Centrifugal force filter including a waste outlet for discharging the waste water can be provided.
  • the filtrate outlet may be provided with a valve to selectively drive the centrifugal force filter.
  • a centripetal force filter including a waste outlet for discharging the filtered wastewater may be provided.
  • the filtrate outlet may be provided with a valve for selectively driving the centripetal force filter.
  • the particle filtering material escape prevention plate is fixed to the inside of the first, second particle filter, the particle filter material may be filled in the upper portion of the particle filter material escape prevention plate.
  • the present invention can improve the heat exchange efficiency by preventing the temperature drop of the filter even if the backwash is easy to wash and at the same time when the foreign matter stuck to the filter when the wastewater heat recovery using the wastewater heat recovery equipment. It has an effect.
  • 1 is a schematic diagram schematically showing the structure of a conventional backwash wastewater heat recovery facility
  • FIG. 2 is a plan view showing the structure of the backwash wastewater heat recovery facility in normal operation according to an embodiment of the present invention
  • FIG. 3 is a perspective view showing the structure of the centrifugal force filter of the backwash wastewater heat recovery facility of FIG.
  • FIG. 4 is a perspective view showing the structure of a centripetal force filter of the backwash wastewater heat recovery facility of FIG.
  • FIG. 5 is a perspective view showing the structure of the first and second particle filters of the backwash wastewater heat recovery facility of FIG.
  • FIG. 6 is a plan view showing the structure of the centrifugal force filter of the backwash wastewater heat recovery facility according to an embodiment of the present invention when
  • FIG. 7 is a plan view showing the structure of the centripetal force filter of the backwash wastewater heat recovery facility operating in accordance with an embodiment of the present invention
  • FIG. 8 is a plan view illustrating an operation of backwashing a first particulate filter of a backwash wastewater heat recovery facility according to an embodiment of the present invention
  • FIG. 9 is a plan view illustrating an operation of backwashing a second particulate filter of a backwash wastewater heat recovery facility according to an embodiment of the present invention.
  • FIG. 2 is a plan view illustrating a structure of a backwash wastewater heat recovery facility during normal operation according to an embodiment of the present invention
  • FIG. 3 is a perspective view illustrating a structure of a centrifugal force filter of the backwash wastewater heat recovery facility of FIG. 4 is a perspective view showing the structure of the centripetal force filter of the backwash wastewater heat recovery facility of FIG. 2
  • FIG. 5 is a perspective view showing the structure of the first and second particle filters of the backwash wastewater heat recovery facility of FIG.
  • FIG. 7 is a plan view illustrating a structure of a centrifugal force filter of a backwash wastewater heat recovery facility according to an embodiment of the present invention
  • FIG. 7 illustrates a centripetal force filter of a backwash wastewater heat recovery facility according to an embodiment of the present invention.
  • 8 is a plan view showing the structure
  • Figure 8 is a plan view showing the operation of backwashing the first particulate filter of the backwash waste water heat recovery facility according to an embodiment of the present invention
  • Figure 9 is an embodiment of the present invention The backwashing according to a second plan view showing an operation of the particulate filter backwash of pyesuyeol recovery facilities.
  • the backwash wastewater heat recovery facility includes: a wastewater collection tank 10 in which hot wastewater is stored and provided with a waste outlet 11; A fresh water tank 20 for storing fresh water at low temperature; The fresh water inlet 33 connected to the fresh water tank, the waste water inlet 31 connected to the waste water collection tank 10, the fresh water outlet 34 to discharge fresh water introduced into the fresh water inlet 33, and A heat exchanger 30 including a waste water outlet 32 through which waste water introduced into the waste water inlet is discharged, and heat-exchanging hot waste water with fresh water at low temperature; A wastewater outlet 80 connected to the waste outlet 32; A hot water tank 100 connected to the fresh water outlet 34; A waste inlet 71 connected to the waste outlet 11 and having a third valve V3 installed therein, and waste water passing through the waste inlet 71 is discharged to be connected to a waste inlet 31 of the heat exchanger; It is installed between the waste outlet 72 and the waste outlet 72 is provided with four valve (V4), one end is connected to the waste inlet 71 and
  • a waste inlet 51 is installed between the wastewater collection tank 10 and the centrifugal force filter 50 so that the wastewater discharged from the wastewater collection tank 10 can flow into the centrifugal force filter 50, and the centrifugal force filter 50 and the centripetal force filter are installed. (60) The waste outlet 52 and the waste inlet 61 which connect these are provided.
  • a filtrate discharge port 53 is provided between one side of the centrifugal force filter 50 and the waste export port 32 to connect the filtrate filtered by the centrifugal force filter 60 to the waste export port 32 side.
  • a first valve V1 is provided on the line of the filtrate discharge port 53.
  • the inside of the centrifugal force filter 50 is rotated at a very high speed.
  • the heavy specific foreign material heavier than water is dispersed and aggregated into the inner wall surface of the centrifugal force filter 50 by centrifugal force.
  • Filtration as follows to collect the lower portion of the centrifugal force filter 50, the primary filtration wastewater filtered high specific gravity foreign substances are discharged through the waste outlet 52 of the centrifugal force filter 50 and collected under the centrifugal force filter 50
  • the heavy filtrate is discharged to the filtrate discharge port 53 of the centrifugal force filter 50.
  • the discharge of the high specific gravity filtrate is performed by opening the first valve V1 installed on the line of the filtrate discharge port 53. 50)
  • the high specific gravity filtrate is automatically discharged to the wastewater discharge port 80 by the internal water pressure.
  • a waste outlet 62 and a waste inlet 71 are installed between the centripetal force filter 60 and the first particle filter 70 so that the wastewater passing through the centripetal force filter 60 can flow into the first particle filter 70.
  • the waste water passing through the first particle filter 70 is introduced into the heat exchanger 30 side, and the waste export port 72 and the waste inlet port are disposed between the first particle filter 70 and the heat exchanger 30 so that heat exchange occurs. (31) is installed
  • a filtrate outlet 63 is connected between the centripetal force filter 60 so as to allow the filtrate filtered by the centripetal force filter 60 to flow out to the waste outlet 32 side.
  • the second valve V2 is provided on the line of the filtrate discharge port 63.
  • the primary filtration wastewater introduced into the centripetal force filter (60) rotates at a very high speed.
  • the low specific gravity material which is lighter than water is collected into the center of the centripetal force filter (60) by using the material inertia generated by the wastewater rotation.
  • the low specific gravity material is filtered by the centripetal force which is collected and collected on the upper part of the centripetal force filter (60), and the secondary filtered wastewater from which the low specific gravity material is filtered is discharged through the waste outlet (62) of the centripetal force filter (60) and the centripetal force filter (60).
  • the low specific gravity collected in the upper portion is discharged to the filtrate outlet 63 of the centrifugal filter 60, and the discharge of the low specific gravity filter is at the opening of the second valve V2 installed on the line of the filtrate outlet 63. By this, the low specific gravity filtrate is automatically discharged to the wastewater discharge port 80 side.
  • a third valve V3 is provided on the line of the waste export port 62 and the waste import port 71 connecting the centripetal force filter 60 and the first particle filter 70 to selectively open and close them.
  • a waste outlet 72 and a waste inlet 31 are provided between the particle filter 70 and the heat exchanger 30 to allow the wastewater to flow into the heat exchanger 30.
  • a fourth valve V4 is provided on the line 31.
  • waste inlet 71 between the third valve V3 and the first particle filter 70 may allow the first particle filter 70 to flow out the foreign matter generated by the backwash to the waste outlet 32 during backwashing.
  • a first backwashing pipe (73) is provided between the waste outlet (32), and the fifth backwashing pipe (73) is provided with a fifth valve (V5).
  • the particle filtering material escape prevention plate 74 While passing through the particle filter material 75 which is introduced into the first particle filter 70 through the waste inlet 71 and filled on the particle filter material escape preventing plate 74 fixed to the inner wall of the first particle filter 70.
  • the fine foreign matter is filtered, the particle filtering material escape prevention plate 74 is fixed to the inner wall of the first particle filter 70 is formed in the form of a plurality of holes perforated less than the aperture of the particle filter material (74)
  • Particle filter 75 is passed through, but is not allowed to pass, the particle filter 75 is discharged to the outside of the particle filter 70 together with the filtered foreign matter by the backwashing flow rate during backwashing for the discharge of filtered foreign matter.
  • the discharged filtered wastewater is introduced into the heat exchanger (30) through the waste inlet (31) to heat exchange with fresh water introduced through the fresh water inlet (33) connected to the heat exchanger (30), thereby heating the fresh water.
  • Completed wastewater is discharged through the waste outlet 32 and the fresh water is heated is discharged through the fresh water outlet 34.
  • One side of the first particle filter (70) is provided with a second particle filter (90), the second particle filter (90) serves to filter the waste water and at the same time backwashing the first particle filter (70) It plays a role of passing the waste water.
  • One side of the second particle filter 90 is connected to one side of the waste outlet 62 installed in the centripetal force filter 60 by the waste inlet 91, and a sixth valve V6 is provided on the line of the waste inlet 91.
  • the other side of the second particle filter 90 is connected to the waste outlet 72 connected to the first particle filter 70 through the waste outlet 92.
  • waste inlet 91 between the sixth valve V6 and the second particle filter 90 may allow the second particle filter 90 to flow out of the backwash to the waste outlet 32.
  • a second back washing pipe 93 are provided between the waste discharge port 32 and a seventh valve V8 is installed on the second back washing pipe 93.
  • the second particle filter 90 is introduced into the second particle filter 90 through the waste inlet 91 and fixed to the inner wall of the second particle filter 90.
  • the fine particles are filtered while passing through the particle filter material 95 filled in the upper portion of the separation prevention plate 94, the particle filter material removal prevention plate 94 fixed to the inner wall of the second particle filter 90 is the particle filter material (94) It consists of a number of holes that are smaller than the diameter of the hole, so that the water passes through, but the particle filter material (95) is not allowed to pass, the particle filter material (95) at the backwash flow rate for backwashing the filtered foreign matter discharged
  • the particle filter material 95 is composed of a material that is higher than the filter material (iron, nonferrous metals, etc.), and according to the size and shape of the foreign material to be filtered.
  • Particle Filters (95) The third filtration wastewater, which has been precisely filtered by optimizing the shape,
  • the third valve V3 and the fourth valve V4 automatic valves are opened, and the first valve V1, the second valve V2, and the fifth valve ( V5), the sixth valve V6 and the seventh valve V8 should be in a closed state.
  • the wastewater collected in the wastewater collection tank 10 passes through the centripetal force filter 60 after passing through the centrifugal force filter 50 through the waste inlet 51 and the first particle filter. It is introduced to the 70 side, and filtration is performed.
  • the fresh water is heated by the heat exchanger 30 and the fresh water introduced into the heat exchanger 30 is heated.
  • the waste outlet 32 connected to the waste water outlet 80 is opened. Through the discharge to the wastewater outlet 80 is completed by the normal operation process is completed.
  • the operation of driving the centrifugal force filter 50 when the centrifugal force filter 50 is required when operating the backwash wastewater heat recovery facility is as follows.
  • the first valve V1, the third valve V3, and the fourth valve V4 are opened, and the second valve V2, the fifth valve V5, and the fifth valve are opened.
  • the sixth valve V6 and the seventh valve V8 should be closed.
  • the wastewater collected in the wastewater collection tank 10 is introduced into the centrifugal force filter 50 through the waste inlet 51, and the primary filtration is performed by the centrifugal force filter 50. , The filtered foreign matter is discharged to the wastewater discharge port 80 through the filtrate discharge port (53).
  • the wastewater having the primary filtration completed in the centrifugal force filter 50 passes through the centripetal force filter 60 and then flows into the first particle filter 70 to perform secondary filtration in the first particle filter 70.
  • the waste water is introduced into the heat exchanger 30, and the fresh water is heated by heat exchange with the fresh water introduced into the heat exchanger 30.
  • the waste water is discharged through the waste outlet 32.
  • Discharged to the wastewater outlet 80, the fresh water is introduced into the hot water tank 100 through the fresh water outlet 34, the operation is completed.
  • the second valve V2, the third valve V3, and the fourth valve V4 are opened, and the first valve V1, the fifth valve V5, and the third valve are opened.
  • the sixth valve V6 and the seventh valve V8 should be closed.
  • the wastewater collected in the wastewater collection tank 10 passes through the centrifugal force filter 50 through the waste inlet 51 and then flows into the centripetal force filter 70 so that primary filtration is performed. It is made, the filtered foreign matter is discharged to the wastewater outlet 80 through the filtrate outlet (63).
  • the wastewater having the primary filtration completed in the centripetal force filter 70 flows into the first particle filter 70 to perform secondary filtration in the first particle filter 70.
  • the waste water is introduced into the heat exchanger 30, and the fresh water is heated by heat exchange with the fresh water introduced into the heat exchanger 30.
  • the waste water is discharged through the waste outlet 32.
  • Discharged to the wastewater outlet 80, the fresh water is introduced into the hot water tank 100 through the fresh water outlet 34, the operation is completed.
  • the fifth valve V5 and the sixth valve V6 are opened, and the first valve V1, the second valve V2, and the third valve V3 are opened.
  • 4th valve (V4), 7th valve (V8) automatic valve should be closed.
  • the wastewater collected in the wastewater collection tank 10 passes through the centrifugal force filter 50 and the centripetal force filter 60 through the waste inlet 51, and then passes through the waste inlet 91. After flowing into the second particle filter 90 through the waste export ports (92, 72) to the first particle filter (70) to backwash the first particle filter (70).
  • centrifugal force filter 50 and the centripetal force filter 60 are not driven so as to lower the pressure of the wastewater for effective backwashing of the first particle filter 70, and the wastewater is simply passed through.
  • the wastewater passing through the first particle filter 70 flows through the first backwashing tube 73 and is discharged through the wastewater outlet 32 to the wastewater outlet 80 to backwash the first particle filter 70.
  • the operation is completed.
  • the third valve V3 and the seventh valve V8 are opened, and the first valve V1, the second valve V2, and the fourth valve V4 are opened.
  • the fifth valve V5 and the sixth valve V6 should be closed.
  • the wastewater collected in the wastewater collection tank 10 passes through the centrifugal force filter 50 and the centripetal force filter 60 through the waste inlet 51, and then the waste inlet 71. After flowing into the first particle filter 70 through the waste export ports (72, 92) to the second particle filter (90) to backwash the first particle filter (90).
  • centrifugal force filter 50 and the centripetal force filter 60 are not driven so as to lower the pressure of the wastewater for effective backwashing of the second particle filter 90, and the wastewater is simply passed through.
  • the wastewater that has passed through the second particle filter 90 flows through the second backwashing tube 93 and is discharged through the wastewater outlet 32 to the wastewater outlet 80 to backwash the second particle filter 90. The operation is completed.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtration Of Liquid (AREA)

Abstract

L'invention concerne un équipement de récupération de la chaleur des eaux usées de lavage à contre-courant, qui comprend : un réservoir à eaux usées, dans lequel des eaux usées à haute température sont stockées et qui est doté d'une évacuation pour les eaux usées ; un réservoir d'eau douce, dans lequel de l'eau douce à basse température est stockée ; un échangeur de chaleur destiné à échanger la chaleur entre les eaux usées à haute température et l'eau douce à basse température, l'échangeur de chaleur comprenant une admission d'eau douce raccordée au réservoir d'eau douce, une admission d'eaux usées raccordée au réservoir d'eaux usées, une évacuation d'eau douce destinée à évacuer l'eau douce, qui s'est écoulée dans l'admission d'eau douce et une évacuation d'eaux usées destinée à évacuer les eaux usées, qui se sont écoulées dans l'admission d'eaux usées ; un orifice d'évacuation des eaux usées raccordé à l'évacuation d'eaux usées ; un réservoir d'eau chaude raccordé à l'évacuation d'eau douce ; un premier filtre à particules, qui permet un lavage à contre-courant du fait qu'il comprend une admission d'eaux usées, raccordée à l'évacuation d'eaux usées et qui présente une troisième soupape installée en son sein, une évacuation d'eaux usées, qui évacue les eaux usées passant à travers l'admission d'eaux usées, est raccordée à l'admission d'eaux usées de l'échangeur de chaleur et présente une quatrième soupape installée en son sein, ainsi qu'un premier tuyau de lavage à contre-courant, installé entre l'admission d'eaux usées et l'évacuation d'eaux usées et qui présente une extrémité raccordée à l'admission d'eaux usées et l'autre extrémité raccordée à l'évacuation d'eaux usées et qui présente une cinquième soupape installée en son sein ; et un second filtre à particules installé entre une admission d'eaux usées, qui est raccordée à l'évacuation d'eaux usées, et une évacuation d'eaux usées, qui est raccordée à l'évacuation d'eaux usées, de manière à évacuer les eaux usées passant à travers l'admission d'eaux usées.
PCT/KR2014/002805 2014-04-01 2014-04-01 Équipement de récupération de chaleur des eaux usées de lavage à contre-courant Ceased WO2015152439A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2014/002805 WO2015152439A1 (fr) 2014-04-01 2014-04-01 Équipement de récupération de chaleur des eaux usées de lavage à contre-courant

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Application Number Priority Date Filing Date Title
PCT/KR2014/002805 WO2015152439A1 (fr) 2014-04-01 2014-04-01 Équipement de récupération de chaleur des eaux usées de lavage à contre-courant

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WO2015152439A1 true WO2015152439A1 (fr) 2015-10-08

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100635532B1 (ko) * 2004-09-17 2006-10-18 김기석 폐수의 부유물질 자동여과장치
KR100991733B1 (ko) * 2009-09-11 2010-11-03 김기석 자동입자여과시스템이 구현된 폐수열회수설비
KR101019120B1 (ko) * 2009-09-11 2011-03-07 김찬호 3단여과시스템이 구현된 폐수열회수설비
KR101199434B1 (ko) * 2009-05-27 2012-11-09 문성균 폐수의 열회수장치
KR101348952B1 (ko) * 2013-02-28 2014-01-16 이종수 폐수열 회수장치의 여과 및 자동역세 시스템

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100635532B1 (ko) * 2004-09-17 2006-10-18 김기석 폐수의 부유물질 자동여과장치
KR101199434B1 (ko) * 2009-05-27 2012-11-09 문성균 폐수의 열회수장치
KR100991733B1 (ko) * 2009-09-11 2010-11-03 김기석 자동입자여과시스템이 구현된 폐수열회수설비
KR101019120B1 (ko) * 2009-09-11 2011-03-07 김찬호 3단여과시스템이 구현된 폐수열회수설비
KR101348952B1 (ko) * 2013-02-28 2014-01-16 이종수 폐수열 회수장치의 여과 및 자동역세 시스템

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