CN106802107A - A kind of vertical rotating sewage heat exchanger and its cleaning method - Google Patents

A kind of vertical rotating sewage heat exchanger and its cleaning method Download PDF

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Publication number
CN106802107A
CN106802107A CN201710175698.4A CN201710175698A CN106802107A CN 106802107 A CN106802107 A CN 106802107A CN 201710175698 A CN201710175698 A CN 201710175698A CN 106802107 A CN106802107 A CN 106802107A
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CN
China
Prior art keywords
heat exchanger
sewage
rotary shaft
clear water
casing
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Granted
Application number
CN201710175698.4A
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Chinese (zh)
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CN106802107B (en
Inventor
范军
胡玉秋
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Shandong Agricultural University
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Shandong Agricultural University
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Priority to CN201710175698.4A priority Critical patent/CN106802107B/en
Publication of CN106802107A publication Critical patent/CN106802107A/en
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Publication of CN106802107B publication Critical patent/CN106802107B/en
Expired - Fee Related legal-status Critical Current
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28GCLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G1/00Non-rotary, e.g. reciprocated, appliances
    • F28G1/12Fluid-propelled scrapers, bullets, or like solid bodies
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28GCLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G15/00Details
    • F28G15/04Feeding and driving arrangements, e.g. power operation

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The present invention relates to field of energy utilization, more particularly to a kind of vertical rotating sewage heat exchanger and its cleaning method.Including cylindric casing, spiral heat exchange plate, the ball cleaning apparatus that rotary shaft and casing lateral wall are set.Sewage inlet and clear water output are arranged at casing top, and outlet of sewer and clear water entrance are arranged at bottom.Clear water flows from lower to upper in hollow heat exchanger plates, and space of the sewage between heat exchanger plates is flowed from top to bottom.Heat exchanger plates one end is welded with rotary shaft, and the other end is closed and has small―gap suture with cabinet wall.Rotary shaft uses stainless steel tube, positioned at casing upper and lower end face center, through after being fixed on the bearing of upper and lower end face, is imported and exported with clear water by shaft connector and is connected.Rotary shaft lower end is provided with driven pulley, is connected by gear or belt with motor-operated driving wheel.Rotating shaft drives heat exchanger plates rotation, realizes the rubber ball cleaning of heat-transfer surface.Present invention, avoiding dirty stifled possibility, the heat exchange of the high-efficiency and continuous of online rubber ball cleaning and sewage can be realized.

Description

A kind of vertical rotating sewage heat exchanger and its cleaning method
First, technical field
The present invention relates to field of energy utilization, more particularly to a kind of vertical rotating sewage heat exchanger and its cleaning method.
2nd, background technology
Used as a kind of reproducible low-temperature heat source, alternative partial fuel coal, oil burning boiler can suitably alleviate me to municipal sewage The environmental problem of state, and the energy resource structure of China can be optimized, to the significant of national energy-saving emission reduction.
Sewage heat exchanger is the key equipment for realizing municipal sewage Btu utilization, and sewage and clean water are in sewage heat exchanger Realize contactless heat exchange.However, sewage is introduced into heat exchanger as a kind of severe water quality, inevitably in heat exchange Fouling on surface, causes heat exchange surface thermal resistance to increase, and overall heat exchanger heat transfer coefficient declines quickly.Sewage dirt can even be blocked Heat exchanging pipe, influence heat exchanger continually and steadily exchanges heat.Therefore, there is easy fouling in sewage heat exchanger, and hardly possible cleaning, easily blocking etc. are many Technical barrier.
Current sewage heat exchanger mainly have immersion, shell-and-tube, showering spray type these three.Immersion sewage heat exchanger is by sewage Heat exchanger is immersed directly in cesspit pond, with good anticorrosion and anti-clogging performance.But heat exchange mode is nature pair Stream, heat exchange efficiency is low, and heat exchange area is big, and the dirt deposition in heat exchange pond is also difficult to solve with cleaning, is not suitable in heavy construction Middle popularization.Pipe shell type sewage water heat exchanger heat exchange form is forced convertion, and heat transfer coefficient is big, but cleaning is difficult, maintenance workload It is larger.Showering spray type sewage heat exchanger efficiently solves the obstruction scale problems of heat exchanger, and heat transfer coefficient is higher.But heat exchanger table Face outside needs periodic purge, and cycle is short, formal system to there are problems that secondary pollution.
The present invention proposes a kind of vertical rotating sewage heat exchanger and its cleaning method, in the absence of dirty stifled problem, using changing The rotation of heat pipe, with augmentation of heat transfer and certain scale removal ability, coordinates rubber ball cleaning, it is possible to achieve the real-time online of heat exchanger Exempt from disassembly, cleaning.It is forced convertion to exchange heat, and clean water and sewage are countercurrent flows.Instant invention overcomes lacking for above-mentioned heat exchanger A kind of point, to better profit from sewage resource, there is provided new approaches and methods.
3rd, the content of the invention
It is an object of the present invention to provide a kind of vertical rotating sewage heat exchanger and its cleaning method, real-time online glueballs can be realized Cleaning, the characteristic with forced convertion and countercurrent flow, it is to avoid dirty stifled possibility, can realize that the high-efficiency and continuous of sewage are changed Heat.
To achieve the above object, the technical solution adopted by the present invention is:
A kind of vertical rotating sewage heat exchanger, it includes cylindric casing and rotary shaft, and is welded on one with rotary shaft The spiral heat exchange plate for rising.The casing top has sewage inlet and clear water output, and there is outlet of sewer and clear water to enter for bottom Mouthful, it is characterised in that spiral heat exchange plate the inside is hollow, including upper and lower two pieces of spiral heat exchange faces, heat-transfer surface one End welds together with rotary shaft, other end end-enclosed and has certain interval apart from cabinet wall face.Described helical form is changed Hollow inside hot plate is the runner of clear water, and the entrance of clear water is located at the rotary shaft of bottom half, and the outlet of clear water is located at casing The rotary shaft at top.The space surrounded between two adjacent spirals heat exchanger plates is the main flow paths of sewage, and sewage inlet is in case Body upper end, outlet of sewer is in casing bottom.Described rotary shaft is located at the center of cylindric casing, rotary shaft top Rolling bearing and casing upper end connection, the bottom connection of the rolling bearing of rotary shaft bottom and casing.Rolling bearing Using self-aligning thrust roller bearing, axial load ability is very big, can also bear certain radial load.Rotary shaft is using heavy wall Stainless steel tube, one section of spiral mouth and spiral helicine heat exchange plate weld are opened positioned at the rotary shaft foot of box house, are located at The topmost of the rotary shaft of box house opens one section of spiral mouth with spiral helicine heat exchange plate weld, the remainder of rotary shaft Directly with spiral heat exchange plate weld.Rotary shaft intermediate tube internal cavities are tamped using packing material, and two ends retain internal empty It is easy to clear water to flow in chamber.The part that rotary shaft bottom is exposed at outside casing is equiped with driven pulley, by gear or belt with it is electronic Owner's driving wheel is connected, and realizes rotating shaft and the rotation of heat exchanger plates.The part that rotary shaft stretches out casing upper and lower end parts is connected by axle Device is realized being connected with the pipeline not rotated.
Casing lateral surface is provided with rubber ball cleaning circulation pipe, circulation pipe top connection box heat exchanger top, under circulation pipe Portion connection box heat exchanger bottom.Circulation pipe is provided with glueballs circulation valve, has pipeline near circulation valve top and receives ball valve Door and the connection of receipts ball room.Ball room is received as service room, its bottom is provided with pipeline and is connected with service valve and rubber ball cleaning circulation pipe Connect.
Preferably, the use stainless steel material of the spiral heat exchange plate.
Preferably, the casing uses stainless steel material.
It is an advantage of the invention that:
1, it is applied to sewage heat change, and, using runner wide, runner inside is unobstructed, is not easily blocked for sewage runner;
2, heat-transfer surface is a helical form plane, is made of stainless steel, and surface polishing, dirt is difficult to deposit and glues It is attached.Because the flowing of sewage is flowed from top to bottom along inclined screw-shaped flow paths, under gravity, sewage below is not The disconnected sewage for washing away above so that heat exchanger is less scaling, with certain self-cleaning ability, so that the cleaning frequency is long;
3, the heat exchange of sewage and clear water is forced-convection heat transfer, and sewage and clear water are countercurrent flows, and the coefficient of heat transfer is high, changes The hot temperature difference is big;
4, during cleaning, open rotary shaft whirligig, into heat exchanger glueballs in the presence of spiral along spiral Shape sewage runner is from bottom to top rolled, heat-transfer surface friction, shock with runner, takes away the dirt on its surface.Glueballs reaches top Exchanger base is rolled into by gravity along glueballs circulation pipe afterwards, into bottom spiral, online rubber ball cleaning is realized in so circulation;
5, heat exchanger is made of stainless steel, with etch-proof characteristic.
As can be seen that the sewage heat exchanger that the present invention is provided, it is applied to sewage heat change, is not easily blocked, and impurity dirt is not Easily in heat-transfer surface deposition, with certain self-cleaning ability, the coefficient of heat transfer is high, realizes online rubber ball cleaning.The sewage heat exchanger can be with Long-term stable operation, can keep heat exchange efficiency higher all the time.
4th, illustrate
Fig. 1 is the schematic diagram of vertical rotating sewage heat exchanger.
Fig. 2 is sewage and clear water flow direction schematic diagram in the vertical rotating sewage heat exchanger course of work.
Fig. 3 is rotary shaft and dead axle connection diagram.
In figure, 1 is casing, and 2 is clear water entrance, and 3 is clear water output, and 4 is sewage inlet, and 5 is outlet of sewer, and 6 is to rotate Axle, 7 is spiral heat exchange plate, and 8 is to rotate all driven pulleys, and 9 is motor active runner, and 10 is motor, 11 be rotary shaft with Motionless shaft connector, 12 is glueballs circulation line control valve, and 13 is to receive Ball valve, and 14 is swing-in hinge door, and 15 is to receive Ball room (as service room), 16 is glueballs, and 17 is service valve, and 18 is glueballs circulation line, and 19 is axis of rotation bearing, and 20 are Case supports basis, 111 is connecting bolt, and 112 is rotating shaft-seal filler, and 113 is rotary shaft connecting bushing, and 114 is not turn Axle connecting bushing.
5th, specific embodiment
Below in conjunction with the accompanying drawings, the present invention is described in further detail.
Fig. 1 is the schematic diagram of the sewage heat exchanger that the present invention is provided, and it includes cylindric casing 1 and spiral heat exchange plate 7, The top of casing 1 has sewage inlet 4 and clear water output 3, and bottom has outlet of sewer 5 and clear water entrance 2.Rotary shaft 6 is located at case The top surface of body 1 and the center of bottom surface, are made up of heavy wall stainless steel tube.The bearing 19 being connected with rotary shaft 6 is fixed by attachment means In the top surface of casing 1 and bottom surface.Spiral heat exchange plate 7 includes upper and lower two heat-transfer surfaces, and centre is hollow, constitutes the flowing of clear water Passage.Two heat-transfer surface one end and the rotary shaft 6 of heat exchanger plates 7 weld together, other end end-enclosed and apart from the inwall of casing 1 There is small―gap suture in face.The foot of rotary shaft 6 inside casing 1 is opened one section of spiral mouth and is welded with spiral helicine heat exchanger plates 7, The topmost of the rotary shaft 6 inside casing 1 is opened one section of spiral mouth and is welded with spiral helicine heat exchanger plates 7, rotary shaft 6 Remainder is directly welded with spiral heat exchange plate 7.The intermediate tube internal cavities of rotary shaft 6 are tamped using packing material, two ends Retaining internal cavities is easy to clear water to flow.The part that the bottom of rotary shaft 6 is exposed at the outside of casing 1 is equiped with driven pulley 8, by gear Or the driving wheel 9 that belt drives with motor 10 is connected, rotating shaft 6 and the rotation of heat exchanger plates 7 are realized.Rotary shaft 6 is stretched out on casing Realize being connected with clear water inlet duct 2 and clear water output pipeline 3 by shaft connector 11 in the part of bottom.
The lateral surface of casing 1 is provided with rubber ball cleaning circulation pipe 18, and the top of the top of circulation pipe 18 connection box heat exchanger 1 is followed The bottom of endless tube 18 connection box heat exchanger 1 bottom.Circulation pipe 18 is provided with glueballs circulation valve 12, near the top of circulation valve 12 There is pipeline to be connected with receipts Ball valve 13 and receipts ball room 15.Ball room is received as service room, its bottom is provided with pipeline with service valve 17 It is connected with rubber ball cleaning circulation pipe 18.Receive the lateral surface of ball room 15 and be provided with a loose-leaf inward swinging door 14, be easy to take out glue outward Ball adds glueballs inward.During normal heat exchange, rotary shaft 6 is motionless, it is necessary to when cleaning, close wastewater inlet valve and clear water Imported valve, does not allow sewage and clear water to enter heat exchanger.Motor 10 is then turned on, drives driving wheel 9 to rotate, driving wheel 9 leads to Cross belt or gear to be connected with driven pulley 8, drive driven pulley 8 to rotate, so as to realize the rotation of axle 6 and spiral heat exchange plate 7.Spiral shell During the rotation of rotation shape heat exchanger plates 7, circulation valve 12 and service valve 17 are opened, close and receive Ball valve 13, glueballs 16 is in gravity Enter in spiral heat exchange plate 7 along circulation pipe 18 under effect.Glueballs 16 is in the presence of revolving force along helical form sewage stream Road is from bottom to top moved, heat-transfer surface friction, shock with spiral heat exchange plate 7, takes away the dirt on its surface.In design, phase is allowed Spacing between adjacent two spiral plates 17 is suitably larger than the diameter of glueballs 16 so that glueballs can clean to two tables in runner Face, and be not stuck.Glueballs 16 is rolled into heat exchanger bottom along glueballs circulation pipe 18 after reaching the top of spiral heat exchange plate 7 by gravity Portion, into bottom spiral, online rubber ball cleaning is realized in so circulation.During cleaning, can be by hinge door 14 toward receiving in ball room 15 Clear water is added, strengthens the effect of rubber ball cleaning.After cleaning terminates, keep rotating shaft 6 to rotate, close circulation valve 12 and service valve 17, open and receive Ball valve 13, allow glueballs 16 to enter and receive in ball room 15.After glueballs 16 is fully entered in receipts ball room 15, electricity is closed Motivation 10, stops the rotation of rotating shaft 6, is then shut off receiving Ball valve 13, opens sewage inlet valve and clear water inlet valve, is transferred to Normal heat exchange pattern.
As shown in Fig. 2 this figure gives the runner of heat exchanger clear water and the runner of sewage.Clear water is from the clear of exchanger base Water inlet 2, the lower end of rotary shaft 6 is entered into by shaft connector 11.By the helical opening of the lower end of rotary shaft 6, enter Enter in the inner passage of spiral helicine heat exchanger plates 7, along inner passage all the way up, the helical form for reaching the upper end of rotary shaft 6 is opened Mouthful, subsequently into rotary shaft top, by shaft connector 11 after, flowed out via clear water output 3.Rotary shaft upper and lower ends spiral Part between shape opening is tamped with filler, does not allow clear water to pass through.
Sewage enters heat exchanger from the sewage inlet 4 on top, the spiral shell formed between two neighboring spiral heat exchange plate 7 The space for revolving shape is flowed from top to bottom, after reaching exchanger base, drains along outlet of sewer 5.Sewage also can be along heat exchanger plates 7 With the interstitial flow between the internal face of casing 1, but the very little of the void designs, therefore most of sewage is still along spiral The spatial flow of shape.Sewage flows from top to bottom along helical space, and there is souring in heat exchanging face, and dirt is in current scour Under Action of Gravity Field, it is difficult to pile up.Therefore, the heat exchanger has certain self-cleaning action, between extending the time of heat exchanger cleaning Every.
As shown in figure 3, shaft connector 11 includes connecting bolt 111, the airtight and watertight padding 112 of rotary shaft, the company of rotary shaft The connecting bushing 114 of spindle set 113 and dead axle is constituted.Filler uses the anti abrasive filler of good airproof performance, it is ensured that rotate Axle will not be leaked in rotation reclaimed water.
Because two heat exchange surfaces up and down of heat exchanger plates 7 are the contact surface of sewage with the inner surface of casing 1, therefore, change Hot plate 7 preferably uses stainless steel material, in order to prevent dirt from depositing, can use polishing.
The present invention is applied to sewage heat change, and, using runner wide, runner inside is unobstructed, is not easily blocked, heat exchanger for sewage runner Interior clear water carries out countercurrent flow with sewage, and heat transfer temperature difference is larger, and heat exchange efficiency is higher.Also, sewage heat exchanger of the invention, Employ glueballs on-line cleaning, it is adaptable to the heat exchange of the poor sewage of water quality.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention Within god and principle, any modification, equivalent substitution and improvements done etc. should be included within the scope of protection of the invention.

Claims (6)

1. a kind of vertical rotating sewage heat exchanger, it includes cylindric casing and spiral helicine heat exchanger plates, the casing top tool There are sewage inlet and clear water output, bottom has outlet of sewer and clear water entrance, and there are rotary shaft, case in casing upper and lower surface center Outside is equipped with ball cleaning apparatus, it is characterised in that
The spiral heat exchange plate is hollow-core construction, is made up of upper and lower two spiral heat exchange faces, and heat-transfer surface one end is welded on rotation In rotating shaft, other end closing is connected and has small gap with interior, and the flowing of heat exchanger plates the inside is clear water, adjacent heat exchange Spatial flow between plate is sewage, and heat exchanger plates are rotated as rotary shaft is rotated.
2. sewage heat exchanger as claimed in claim 1, it is characterised in that the rotary shaft is the stainless steel tube of heavy wall, in case There are two rolling bearings on body at lower wall surface position, the top and bottom that rotary shaft is located inside heat exchanger offer helical form Opening and heat exchange plate weld, remainder directly with heat exchange plate weld, the tube interior between rotary shaft helical opening adopts Tamped with packing material, the pipeline that rotary shaft is located at outside casing passes through assembling pipe joint and clear water entrance and clear water output phase Even.
3. sewage heat exchanger as claimed in claim 1, it is characterised in that the ball cleaning apparatus are by rubber ball cleaning circulation pipe Road, circulation line valve, service room (as ball room is received), glueballs, valve of serving a ball receives Ball valve and several parts of service room hinge door Composition.
4. sewage heat exchanger as claimed in claim 1, it is characterised in that the spiral heat exchange plate uses stainless steel Material.
5. sewage heat exchanger as claimed in claim 1, it is characterised in that the cylindric casing uses stainless steel material.
6. sewage heat exchanger as claimed in claim 1, it is characterised in that install the part that the revolving spindle goes out bottom half There is the driven pulley of rotation, be connected by gear or belt with motor-operated rotating driver.
CN201710175698.4A 2017-03-22 2017-03-22 Vertical rotary sewage heat exchanger and cleaning method thereof Expired - Fee Related CN106802107B (en)

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CN201710175698.4A CN106802107B (en) 2017-03-22 2017-03-22 Vertical rotary sewage heat exchanger and cleaning method thereof

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Application Number Priority Date Filing Date Title
CN201710175698.4A CN106802107B (en) 2017-03-22 2017-03-22 Vertical rotary sewage heat exchanger and cleaning method thereof

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CN106802107A true CN106802107A (en) 2017-06-06
CN106802107B CN106802107B (en) 2022-08-05

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109323616A (en) * 2018-11-20 2019-02-12 山东农业大学 A kind of rubber ball cleaning type sewage heat exchanger and cleaning method
CN111998702A (en) * 2020-09-22 2020-11-27 内蒙古柏工科技有限公司 Heat exchange device of rotary sewage source heat pump

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1148429A (en) * 1994-05-09 1997-04-23 克瓦纳尔工程有限公司 Heat exchanger
JP2000018888A (en) * 1998-07-07 2000-01-18 Ishikawajima Harima Heavy Ind Co Ltd Steel ball tank
CN2839941Y (en) * 2005-04-11 2006-11-22 浙江印染机械有限公司 The rotary-type thermal recover
CN101303212A (en) * 2007-05-11 2008-11-12 湖南工业大学 Low current velocity fluidize cleaning type horizontal column pipe heat transfer equipment system
CN101303214A (en) * 2007-05-11 2008-11-12 湖南工业大学 Rotary fluid flow state cleaning type casing tube high-efficiency heat exchanger
CN102252538A (en) * 2011-07-08 2011-11-23 雷诺特环境设备(北京)有限公司 Dismantling- and washing-free centrifugal-type sewage heat exchanger
CN104713413A (en) * 2013-12-13 2015-06-17 衢州学院 Online descaling strengthening device of heat exchanger
CN205262257U (en) * 2015-12-31 2016-05-25 狄海生 Direct primary sewage spiral pipe plate heat exchanger
CN206876047U (en) * 2017-03-22 2018-01-12 山东农业大学 A kind of vertical rotating sewage heat exchanger

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1148429A (en) * 1994-05-09 1997-04-23 克瓦纳尔工程有限公司 Heat exchanger
JP2000018888A (en) * 1998-07-07 2000-01-18 Ishikawajima Harima Heavy Ind Co Ltd Steel ball tank
CN2839941Y (en) * 2005-04-11 2006-11-22 浙江印染机械有限公司 The rotary-type thermal recover
CN101303212A (en) * 2007-05-11 2008-11-12 湖南工业大学 Low current velocity fluidize cleaning type horizontal column pipe heat transfer equipment system
CN101303214A (en) * 2007-05-11 2008-11-12 湖南工业大学 Rotary fluid flow state cleaning type casing tube high-efficiency heat exchanger
CN102252538A (en) * 2011-07-08 2011-11-23 雷诺特环境设备(北京)有限公司 Dismantling- and washing-free centrifugal-type sewage heat exchanger
CN104713413A (en) * 2013-12-13 2015-06-17 衢州学院 Online descaling strengthening device of heat exchanger
CN205262257U (en) * 2015-12-31 2016-05-25 狄海生 Direct primary sewage spiral pipe plate heat exchanger
CN206876047U (en) * 2017-03-22 2018-01-12 山东农业大学 A kind of vertical rotating sewage heat exchanger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109323616A (en) * 2018-11-20 2019-02-12 山东农业大学 A kind of rubber ball cleaning type sewage heat exchanger and cleaning method
CN111998702A (en) * 2020-09-22 2020-11-27 内蒙古柏工科技有限公司 Heat exchange device of rotary sewage source heat pump

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