CN203414012U - Underground water plate heat exchanger online backwashing device - Google Patents

Underground water plate heat exchanger online backwashing device Download PDF

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Publication number
CN203414012U
CN203414012U CN201320348670.3U CN201320348670U CN203414012U CN 203414012 U CN203414012 U CN 203414012U CN 201320348670 U CN201320348670 U CN 201320348670U CN 203414012 U CN203414012 U CN 203414012U
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CN
China
Prior art keywords
heat exchanger
plate heat
water inlet
backwashing
water
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN201320348670.3U
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Chinese (zh)
Inventor
陈焰华
於仲义
贾鲁庄
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CITIC General Institute of Architectural Design and Research Co Ltd
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CITIC General Institute of Architectural Design and Research Co Ltd
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Application filed by CITIC General Institute of Architectural Design and Research Co Ltd filed Critical CITIC General Institute of Architectural Design and Research Co Ltd
Priority to CN201320348670.3U priority Critical patent/CN203414012U/en
Application granted granted Critical
Publication of CN203414012U publication Critical patent/CN203414012U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to an underground water plate heat exchanger online backwashing device, comprising a plate heat exchanger, water inlet and outlet connecting pipelines and operation valves for the plate heat exchanger and an underground water taking and draining well as well as water inlet and outlet connecting pipelines and operation valves for the plate heat exchanger and a backwashing device; a cleaning solution water tank, a tap water inlet device and an operation valve of the tap water inlet device are arranged on a backwashing water inlet pipeline; a pressure meter is arranged on the water inlet and outlet pipeline of the plate heat exchanger; online backwashing is performed according to two stages; the backwashing target of the first stage is to easily strip dirty substances, and the heat transfer effect of the plate heat exchanger can be improved after dirt is stripped; the backwashing target of the second stage is to strip dirty substances which are not easily cleaned in the first stage, and a weak acid solution is adopted as a cleaning medium, so the heat exchange efficiency can be kept at a higher level for a long time. An online backwashing method disclosed by the utility model is suitable for the plate heat exchanger made of stainless steel under the condition that equipment and pipelines are not disassembled and moved, so a better descaling effect is achieved, the operation is flexible and convenient, and the plate heat exchanger can be safely and economically operated for a long period.

Description

A kind of underground water plate type heat exchanger online backflushing cleaning device
Technical field
The utility model relates to a kind of heat exchanger online backflushing cleaning device, particularly relates to a kind of plate type heat exchanger online backflushing cleaning device that underground water is heat transferring medium of take.
Background technology
Utilizing underground water to carry out cold and heat supply as thermal source or the heat sink of earth-source hot-pump system, is a regenerative resource application technology with obvious energy-saving and emission-reduction benefit.Although underground water is through processing, water quality reaches instructions for use substantially, because underground water is dissolved with various ions, microorganism, makes underground water after long-term operation, and fouling and clogging will occur heat transmission equipment.
Due to the existence of impurity in underground water, the interior scale formation of plate type heat exchanger conventional in underground water earth-source hot-pump system happens occasionally.Particularly, under summer cooling condition, in plate type heat exchanger, the very suitable growth of microorganism breeding of temperature (running temperature is at 25 ~ 30 ℃), causes fouling growth speed very fast.Plate type heat exchanger is heat-transfer effect variation after continuous operation after a while, and the water temperature difference that enters into source pump diminishes, and unit operation efficiency declines.Dirt adheres to for a long time and will cause the generation of underdeposit corrosion phenomenon on plate simultaneously, thus the service time of having reduced plate type heat exchanger, the investment cost of increase system.
What the processing method of plate type heat exchanger fouling was the most frequently used is to shut down to take cleaning apart, is about to, after plate type heat exchanger dismounting, plate is directly carried out to machinery or Chemical cleaning.Because part underground water causes the plate type heat exchanger fouling cycle shorter, as adopted the cleaning way of taking apart, will cause the dismounting repeatedly of plate type heat exchanger, this mode both can severe jamming the normal use of air-conditioning system, increase cleaning charge use, also can be because repeatedly dismantling the service life that causes plate type heat exchanger.Particularly, for Large Underground water earth-source hot-pump system, plate type heat exchanger is bulky, and dismounting difficulty is larger, and frequent dismounting cannot realize.
Use online backwashing technology, can exempt from disassembly, cleaning to plate type heat exchanger, regularly automatically complete the removal of dirt, recover plate type heat exchanger fluid interchange performance.In view of quality of groundwater particularity and complexity, the cleaning for underground water plate type heat exchanger at present there is no reliable method, and this has seriously restricted applying of underground water ground source heat pump technology.
Summary of the invention
The purpose of this utility model, exactly for having solved plate type heat exchanger scale problems in the use procedure of underground water earth-source hot-pump system, provides a kind of plate type heat exchanger online backflushing cleaning device, and it is rational in infrastructure, and method of operating is easy.Utilize this device can effectively remove the schmutzband on plate heat exchange panel, guarantee underground water earth-source hot-pump system safety and economic operation.
For achieving the above object, the utility model provides a kind of underground water plate type heat exchanger online backflushing cleaning device, comprise plate type heat exchanger, plate type heat exchanger is connected with the water inlet connecting line of underground water intake well and the water outlet connecting line of subdrainage well, on water inlet connecting line and water outlet connecting line, is equipped with operating valve; On water inlet connecting line, be connected with the backwash circulation line one with operating valve, on water outlet connecting line, be connected with the backwash circulation line two with operating valve; Backwash circulation line one or backwash circulation line two are provided with tubing pump, counter-flushing pipeline one connects with the cleaning solution pipe being connected with cleaning solution water tank with running water pipe respectively after being connected with counter-flushing pipeline two, on running water pipe and cleaning solution pipe, is equipped with operating valve.
Above-mentioned counter-flushing pipeline one and counter-flushing pipeline two are provided with drainpipe and drain operation valve.On above-mentioned counter-flushing pipeline one and counter-flushing pipeline two, be respectively equipped with Pressure gauge.
The utility model compared with prior art has the following advantages: the online backwashing device and method 1. the utility model proposes can be applied to underground water plate type heat exchanger on-line cleaning process under the situation of not dismantling, not moving equipment and pipeline, can reach the object of recovering plate type heat exchanger fluid interchange performance; 2. two stage cleaning processes are with strong points, and first stage backwash target is more caducous dirt material, and after dirt is peeled off plate type heat exchanger, heat-transfer effect can be improved; The dirt material that target is not easy cleaning is mainly cleaned in second stage backwash, adopts weak acid solution as cleansing medium, makes the plate type heat exchanger heat exchange efficiency can long term maintenance higher level.3. the utility model is on the basis of original plate type heat exchanger function, transform and this back purge system is installed, and method is simple, and flexible operation, practicality are invested less.
Accompanying drawing explanation
Fig. 1 is structure of the present utility model and schematic flow sheet.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described further:
A kind of underground water plate type heat exchanger online backflushing cleaning device, comprise plate type heat exchanger 1, plate type heat exchanger 1 is connected with the water inlet connecting line 11 of underground water intake well and the water outlet connecting line 12 of subdrainage well, water inlet connecting line 11 is provided with operating valve 4, and water outlet connecting line 12 is provided with operating valve 5; On water inlet connecting line 11, be connected with the backwash circulation line 13 with operating valve 8, be connected with the backwash circulation line 14 with operating valve 7 on water outlet connecting line 12, backwash circulation line 13 or backwash circulation line 14 are provided with tubing pump 2; Backwash circulation line 13 connects with the cleaning solution pipe 16 being connected with cleaning solution water tank 3 with running water pipe 15 respectively after being connected with backwash circulation line 14, and running water pipe 15 is provided with operating valve 6, and cleaning solution pipe 16 is provided with operating valve 10.Underground water taking and discharging pipeline and backwash inlet and outlet pipe are arranged in parallel.
Counter-flushing pipeline one and counter-flushing pipeline two are provided with drainpipe 17 and drain operation valve 9.
On counter-flushing pipeline 13 and counter-flushing pipeline 14, be respectively equipped with Pressure gauge.
The utility model carries out as follows:
(1) once find that underground water plate type heat exchanger changes 1 thermal effect variation, arrestment running, prepares to carry out backwash operation;
(2) start first stage backwash, close operating valve 4,5 and the counter-flushing pipeline operating valve 6,7,8 of underground water inlet and outlet pipe, opening operation valve 9, cuts out after emptying underground water.Open the control valve 6,7,8 of backwash tap water pipe line, after shutoff operation valve 9, open tubing pump 2, strengthen the discharge for backwash, start backwash operation;
(3) according to the water-in and water-out pressure reduction numerical value of counter-flushing pipeline, determine backwashing time, along with backwash is carried out, this pressure reduction will reduce gradually and tend towards stability, and after differential pressure is stable, can stop backwash;
(4) in the time of need to finishing backwash, first open underground water inlet and outlet pipe operating valve 4,5, close counter-flushing pipeline operating valve 6,7,8,9,10 simultaneously, groundwater run off is adjusted to appropriate location, again exerting oneself of running device is adjusted to normal operating condition as required, first stage online backwashing EO;
(5) as occurred following situation, start the backwash operation of second stage: 1., during backwash is carried out, the inlet outlet pressure differential of monitoring underground water plate type heat exchanger 1 constantly changes, if pressure reduction increases 98.07kPa; 2. after first stage backwash, underground water plate type heat exchanger 1 heat transfer effect worsens, and user's side leaving water temperature is increased to 28 ℃;
(6) before starting second stage backwash, first in wash cycles water tank 3, modulate the weak acid solution of concentration 3%; Wash cycles water tank should change pipe blow-through pump top 500mm higher than plate; Shutoff operation valve is identical with the first stage, and the remaining underground water of emptying pipe is filled with and soaked 2 hours unlatching tubing pumps after weak acid solution and circulate, move continuously 4 hours after opening operation valve 9,10 by the emptying running water of filling with again of weak acid solution, backwash operation finishes.
(7) rerun the rear result of use to plate type heat exchanger and monitor, if plate type heat exchanger 1 is imported and exported water temperature and pressure reduction recovers normal, equipment can be resumed operation.

Claims (3)

1. a underground water plate type heat exchanger online backflushing cleaning device, comprise plate type heat exchanger, plate type heat exchanger is connected with the water inlet connecting line of underground water intake well and the water outlet connecting line of subdrainage well, on water inlet connecting line and water outlet connecting line, is equipped with operating valve; It is characterized in that: on water inlet connecting line, be connected with the backwash circulation line one with operating valve, on water outlet connecting line, be connected with the backwash circulation line two with operating valve; Backwash circulation line one or backwash circulation line two are provided with tubing pump, counter-flushing pipeline one connects with the cleaning solution pipe being connected with cleaning solution water tank with running water pipe respectively after being connected with counter-flushing pipeline two, on running water pipe and cleaning solution pipe, is equipped with operating valve.
2. underground water plate type heat exchanger online backflushing cleaning device according to claim 1, is characterized in that: counter-flushing pipeline one and counter-flushing pipeline two are provided with drainpipe and drain operation valve.
3. underground water plate type heat exchanger online backflushing cleaning device according to claim 1 and 2, is characterized in that: on counter-flushing pipeline one and counter-flushing pipeline two, be respectively equipped with Pressure gauge.
CN201320348670.3U 2013-06-18 2013-06-18 Underground water plate heat exchanger online backwashing device Expired - Fee Related CN203414012U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320348670.3U CN203414012U (en) 2013-06-18 2013-06-18 Underground water plate heat exchanger online backwashing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320348670.3U CN203414012U (en) 2013-06-18 2013-06-18 Underground water plate heat exchanger online backwashing device

Publications (1)

Publication Number Publication Date
CN203414012U true CN203414012U (en) 2014-01-29

Family

ID=49976896

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320348670.3U Expired - Fee Related CN203414012U (en) 2013-06-18 2013-06-18 Underground water plate heat exchanger online backwashing device

Country Status (1)

Country Link
CN (1) CN203414012U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104251645A (en) * 2014-09-29 2014-12-31 宁夏共享装备有限公司 Washing device for heat exchanger
CN104567491A (en) * 2015-01-16 2015-04-29 江苏苏净集团有限公司 Plate-type heat exchange system
CN104896970A (en) * 2014-03-07 2015-09-09 四平市中亚热工环保设备制造有限公司 On-line back flushing residue water afterheat heat exchange device
CN107436058A (en) * 2016-05-26 2017-12-05 青岛经济技术开发区海尔热水器有限公司 Heat exchanger and the Teat pump boiler with the heat exchanger

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104896970A (en) * 2014-03-07 2015-09-09 四平市中亚热工环保设备制造有限公司 On-line back flushing residue water afterheat heat exchange device
CN104896970B (en) * 2014-03-07 2017-01-11 四平市中亚热工环保设备制造有限公司 On-line back flushing residue water afterheat heat exchange device
CN104251645A (en) * 2014-09-29 2014-12-31 宁夏共享装备有限公司 Washing device for heat exchanger
CN104567491A (en) * 2015-01-16 2015-04-29 江苏苏净集团有限公司 Plate-type heat exchange system
CN104567491B (en) * 2015-01-16 2016-04-27 江苏苏净集团有限公司 Plate-type heat exchange system
CN107436058A (en) * 2016-05-26 2017-12-05 青岛经济技术开发区海尔热水器有限公司 Heat exchanger and the Teat pump boiler with the heat exchanger

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140129

Termination date: 20200618