CN108571915A - The on-line automatic back purge system of water cooler - Google Patents
The on-line automatic back purge system of water cooler Download PDFInfo
- Publication number
- CN108571915A CN108571915A CN201810392788.3A CN201810392788A CN108571915A CN 108571915 A CN108571915 A CN 108571915A CN 201810392788 A CN201810392788 A CN 201810392788A CN 108571915 A CN108571915 A CN 108571915A
- Authority
- CN
- China
- Prior art keywords
- valve
- water
- return
- purge system
- back purge
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G15/003—Control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G2015/006—Arrangements for processing a cleaning fluid after use, e.g. filtering and recycling
Abstract
This application discloses a kind of on-line automatic back purge systems of water cooler, it is connect with PLC, including water cooler, back purge system and the water inlet pipe and return pipe being connect with water cooler, return pipe is equipped with return water temperature sensor and return water safeguards valve, the return water temperature sensor and return water are equipped with the first valve between safeguarding valve, the water inlet pipe is equipped with inflow temperature sensor and valve is safeguarded in water inlet, the inflow temperature sensor and water inlet are equipped with the second valve between safeguarding valve, the back purge system is arranged between water inlet pipe and return pipe, described back purge system one end is arranged on the return pipe between return water temperature sensor and the first valve, the back purge system other end is arranged on the water inlet pipe between inflow temperature sensor and the second valve.The back purge system can reduce by 90% or more manual maintenance workload, while can also improve about two orders of magnitude of equipment dependability, achieve the effect that avoid production heavy losses completely.
Description
Technical field
This application involves heat exchanger field, especially a kind of on-line automatic back purge system of water cooler.
Background technology
Heat exchanger is widely used in industrial and agricultural production, wherein mesolow heat exchanger as chiller applications more
Generally, cooler uses industrial net circulating water as cooling medium mostly in the industrial production.Because containing in industrial net circulating water
Other chemical compositions that the Nacl and purifying water process of a large amount of Ca, Mg ions are added, also have the breeding of microorganism to be attached to
The inner surface of heat exchanger, in addition, some minor diameter mechanicalness impurity is logical by being deposited in heat exchanger after water filter
In road, the deposition of these foreign matters directly causes exchange capability of heat to decline, and gently then causes equipment fault, heavy then cause great production thing
Therefore.The maintaining of water cooler relies primarily on plant maintenance personnel and carrys out periodic maintenance maintenance at present.It is this complete manually regular
The mode of maintenance, first, it is difficult to ensure that the reliability of equipment, second is that maintenance cost is also high.
Invention content
It is in the prior art to overcome the purpose of the present invention is to provide a kind of on-line automatic back purge system of water cooler
It is insufficient.
To achieve the above object, the present invention provides the following technical solutions：
The embodiment of the present application discloses the on-line automatic back purge system of water cooler, is connect with PLC, it is characterised in that：Packet
Heat exchanger, back purge system and the water inlet pipe and return pipe being connect with heat exchanger are included, the return pipe is equipped with return water
Temperature sensor and return water are safeguarded is equipped with the first valve, institute between valve, the return water temperature sensor and return water safeguard valve
State water inlet pipe and safeguard valve equipped with inflow temperature sensor and water inlet, the inflow temperature sensor and water inlet safeguard valve it
Between be equipped with the second valve, the back purge system is arranged between water inlet pipe and return pipe, back purge system one end setting
On return pipe between return water temperature sensor and the first valve, the back purge system other end setting is passed in inflow temperature
On water inlet pipe between sensor and the second valve.
Preferably, in the above-mentioned on-line automatic back purge system of water cooler, the back purge system include connect into
The Backwash pipeline of water pipe and return pipe, the Backwash pipeline are equipped with third valve, the backwash tube at return pipe
Road is equipped with the 4th valve at water inlet pipe, and the Backwash pipeline between the third valve and the 4th valve is equipped with draining
Pipe, the drainpipe are equipped with the 5th valve, and the drainpipe tail end is equipped with effluent pit.
Preferably, in the above-mentioned on-line automatic back purge system of water cooler, the third valve, the 4th valve and
Five valves are normal closed gate.
Preferably, in the above-mentioned on-line automatic back purge system of water cooler, first valve and the second valve are
Normally opened valve, the return water safeguard that valve and water outlet safeguard that valve is manually-operated gate.
Preferably, in the above-mentioned on-line automatic back purge system of water cooler, the back purge system and inflow temperature
Water inlet pipe between sensor is equipped with filter.
Compared with the prior art, the advantages of the present invention are as follows：
The back purge system can reduce by 90% or more manual maintenance workload, while can also improve equipment dependability about two
A order of magnitude achievees the effect that avoid production heavy losses completely.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments described in application are not making the creative labor with according to this for those of ordinary skill in the art
A little attached drawings obtain other attached drawings.
Fig. 1 show the structural principle signal of the on-line automatic back purge system of water cooler in the specific embodiment of the invention
Figure.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out detailed retouch
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, the every other implementation that those of ordinary skill in the art are obtained without making creative work
Example, shall fall within the protection scope of the present invention.
Join shown in Fig. 1, the on-line automatic back purge system of water cooler in the present embodiment, a kind of water cooler is on-line automatic
Back purge system is connect with PLC, including heat exchanger 1, back purge system 2 and the water inlet pipe 3 being connect with heat exchanger 1 and
Return pipe 4, return pipe 4 is equipped with return water temperature sensor 5 and return water safeguards that valve 6, return water temperature sensor 5 are safeguarded with return water
The first valve 7 is equipped between valve 6, water inlet pipe 3 is equipped with inflow temperature sensor 8 and water inlet safeguards that valve 9, inflow temperature pass
Sensor 8 and water inlet are equipped with the second valve 10 between safeguarding valve 9, and back purge system 2 is arranged between water inlet pipe 3 and return pipe 4,
2 one end of back purge system is arranged on the return pipe 4 between return water temperature sensor 5 and the first valve 7, and back purge system 2 is another
One end is arranged on the water inlet pipe 3 between inflow temperature sensor 8 and the second valve 10, and the first valve 7 and the second valve 10 are
Normally opened valve, return water safeguard that valve 6 and water outlet safeguard that valve 9 is manually-operated gate.
Further, back purge system 2 includes the Backwash pipeline 11 of connection water inlet pipe 3 and return pipe 4, Backwash pipeline
11 are equipped with third valve 12 at return pipe 4, and Backwash pipeline 11 is equipped with the 4th valve 13, third valve at water inlet pipe 3
Backwash pipeline 11 between door 12 and the 4th valve 13 is equipped with drainpipe 14, and drainpipe 14 is equipped with the 5th valve 15, row
14 tail end of water pipe is equipped with effluent pit 16, and third valve 12, the 4th valve 13 and the 5th valve 15 are normal closed gate.
Further, the water inlet pipe between back purge system 2 and inflow temperature sensor 8 is equipped with filter 17.
In the technical scheme, back purge system can reduce by 90% or more manual maintenance workload, while can also improve
About two orders of magnitude of equipment dependability achieve the effect that avoid production heavy losses completely.
It is as follows that principle is embodied：
Automatic back-flushing function detects temperature value t15 and 3 temperature of water inlet pipe by system controller according to water cooler return pipe 4
The temperature difference t=t15-t14 for spending t14 is controlled, when temperature difference t reaches 1 normal temperature difference upper limit Δ T of water cooler, Δ T
For system process parameters (parameter is known parameters), system controller PLC starts water cooler and carries out backwashing function automatically
(in addition to this, the condition of system startup backwashing function may also be configured to timing start mode, and the specific time can be according to actual use
Situation starts the period it is arranged.According to actual conditions, temperature difference control and time control mode can be also set simultaneously).
Backwashing function includes that inversely backwash circuit and positive flush loop, reverse backwash are that is, net by water return pipeline 4
Recirculated water is inversely through manually-operated gate 6, normally opened valve 7, heat exchanger 1, water filter 17, normal closed gate 13, normal closed gate 15, most
Afterwards by sundries and it is dirty be discharged into effluent pit 16, inversely backwash circuit in：Normally opened valve 7 is not charged, normally opened valve 10
Electrification, normally opened valve 10 are closed, and inlet pipeline net circulating water is disconnected with heat exchanger at this time, this road is different；At the same time, normally closed
Valve 12 is without electricity, and non-water flow passes through in Backwash pipeline, normal closed gate 13 and 15 electric-opening, pipeline are connected, backwash
Pipeline, which is cooled by water by the recirculated water in water return pipeline after device, filter, to be flowed through pipeline and finally flows back in effluent pit 16.Because at this time
Inlet pipeline disconnects, and the flow and flow rate for flowing through water cooler and filter is all larger, plays the fast flush work to its runner
With making impurity and dirty pressure peel off, while the large scale impurity deposited in the filter is also flushed in effluent pit together；Just
To flushing, i.e., by the recirculated water forward direction of water inlet line through manually-operated gate 9, normally opened valve 10, water filter 17, heat exchanger 1, often
Valve closing door 12, normal closed gate 15 are finally discharged into effluent pit 16, in positive flush loop：Normally opened valve 10 is not charged, often
Valve opening door 7 charges, and normal closed gate 13 is not charged, and normally opened valve 7 and normal closed gate 13 are in closed state, at this time water return pipeline
Water is off, this road is different；At the same time, normal closed gate 13 is not charged, anhydrous in pipeline to flow through, 12 He of normal closed gate
Normal closed gate 15 obtains electric-opening, and pipeline is connected, and positive flushing line is by the recirculated water in inlet pipeline after filter, water cooling
Device flows through pipeline and finally flows back in effluent pit 16.Because water return pipeline at this time disconnects, flow through water cooler and filter flow and
Flow velocity is all maximum, plays the strong souring to its runner, and impurity and dirty pressure is made to peel off.
Each complete backwash process includes back flush-forward direction flushing-three stage of back flush.In water cooler
It is formal to start under backwash mode, reverse backwash stage is carried out first, in each back flush period, back flush 3~5
Secondary, each duration is 10~20 seconds, and positive rinse stage is immediately entered after the completion of back flush, each positive flushing week
Interim, forward direction is rinsed 3~5 times, and each duration is 10~20 seconds；After the completion of forward direction is rinsed, final reverse punching is finally entered
It washes the stage, in the final back flush period, back flush 1~2 time, each duration is 5~15 seconds, final back flush
Pipeline and valve are restored to normal condition after the completion.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above is only the specific implementation mode of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection domain of the application.
Claims (5)
1. a kind of on-line automatic back purge system of water cooler, connect with PLC, it is characterised in that：Including heat exchanger, backwash
Device and the water inlet pipe and return pipe being connect with heat exchanger, the return pipe is equipped with return water temperature sensor and return water is tieed up
Valve is protected, the return water temperature sensor and return water are equipped with the first valve between safeguarding valve, and the water inlet pipe is equipped with water inlet
Temperature sensor and water inlet are safeguarded is equipped with the second valve, institute between valve, the inflow temperature sensor and water inlet safeguard valve
Back purge system is stated to be arranged between water inlet pipe and return pipe, the setting of described back purge system one end return water temperature sensor with
On return pipe between first valve, the back purge system other end is arranged between inflow temperature sensor and the second valve
Water inlet pipe on.
2. the on-line automatic back purge system of a kind of water cooler according to claim 1, it is characterised in that：The backwash
Device includes the Backwash pipeline for connecting water inlet pipe and return pipe, and the Backwash pipeline is equipped with third valve at return pipe
Door, the Backwash pipeline are equipped with the 4th valve, the backwash between the third valve and the 4th valve at water inlet pipe
Pipeline is equipped with drainpipe, and the drainpipe is equipped with the 5th valve, and the drainpipe tail end is equipped with effluent pit.
3. the on-line automatic back purge system of a kind of water cooler according to claim 2, it is characterised in that：The third valve
Door, the 4th valve and the 5th valve are normal closed gate.
4. the on-line automatic back purge system of a kind of water cooler according to claim 1, it is characterised in that：First valve
Door and the second valve are normally opened valve, and the return water safeguards that valve and water outlet safeguard that valve is manually-operated gate.
5. the on-line automatic back purge system of a kind of water cooler according to claim 1, it is characterised in that：The backwash
Water inlet pipe between device and inflow temperature sensor is equipped with filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810392788.3A CN108571915A (en) | 2018-04-27 | 2018-04-27 | The on-line automatic back purge system of water cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810392788.3A CN108571915A (en) | 2018-04-27 | 2018-04-27 | The on-line automatic back purge system of water cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108571915A true CN108571915A (en) | 2018-09-25 |
Family
ID=63575329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810392788.3A Pending CN108571915A (en) | 2018-04-27 | 2018-04-27 | The on-line automatic back purge system of water cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108571915A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373801A (en) * | 2018-11-26 | 2019-02-22 | 贵州开磷息烽合成氨有限责任公司 | A kind of lithium bromide cooling-water machine group adds air back-washing method |
| CN112815474A (en) * | 2021-01-05 | 2021-05-18 | 国网山东省电力公司广饶县供电公司 | Energy-saving method for central air-conditioning system |
| CN115488112A (en) * | 2022-08-03 | 2022-12-20 | 华能山东发电有限公司白杨河发电厂 | Online flushing method for water-hydrogen generator cooler |
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| CN107246374A (en) * | 2017-08-04 | 2017-10-13 | 深圳市东方祺胜实业有限公司 | A kind of compressor radiator |
| KR101819890B1 (en) * | 2017-09-28 | 2018-01-18 | 성도종합기술(주) | Heat exchanger with a cleaning function |
| CN208313124U (en) * | 2018-04-27 | 2019-01-01 | 张家港韶液液压技术有限公司 | The on-line automatic back purge system of water cooler |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201909559U (en) * | 2010-12-20 | 2011-07-27 | 重庆建峰工业集团有限公司 | Pipeline structure of water cooler for production in chemical industry |
| CN102798317A (en) * | 2012-08-31 | 2012-11-28 | 首钢京唐钢铁联合有限责任公司 | Cooling system capable of on-line cleaning heat exchanger and cleaning method thereof |
| CN203414012U (en) * | 2013-06-18 | 2014-01-29 | 中信建筑设计研究总院有限公司 | Underground water plate heat exchanger online backwashing device |
| CN203848750U (en) * | 2014-06-03 | 2014-09-24 | 薛凤臣 | Back flushing circulating device of circulating water cooler |
| CN204944285U (en) * | 2015-07-30 | 2016-01-06 | 四川卡伦茨科技有限公司 | Intelligent integral condenser on-line cleaning unit |
| CN205066558U (en) * | 2015-10-19 | 2016-03-02 | 广州鹿山新材料股份有限公司 | Condensation device's self -cleaning device |
| CN205878998U (en) * | 2016-07-27 | 2017-01-11 | 大唐石门发电有限责任公司 | Tubular heat exchanger online cleaning device |
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| CN208313124U (en) * | 2018-04-27 | 2019-01-01 | 张家港韶液液压技术有限公司 | The on-line automatic back purge system of water cooler |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373801A (en) * | 2018-11-26 | 2019-02-22 | 贵州开磷息烽合成氨有限责任公司 | A kind of lithium bromide cooling-water machine group adds air back-washing method |
| CN112815474A (en) * | 2021-01-05 | 2021-05-18 | 国网山东省电力公司广饶县供电公司 | Energy-saving method for central air-conditioning system |
| CN115488112A (en) * | 2022-08-03 | 2022-12-20 | 华能山东发电有限公司白杨河发电厂 | Online flushing method for water-hydrogen generator cooler |
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