CN208026129U - A kind of offline pickling descaling system of heat exchanger - Google Patents
A kind of offline pickling descaling system of heat exchanger Download PDFInfo
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- CN208026129U CN208026129U CN201820435393.2U CN201820435393U CN208026129U CN 208026129 U CN208026129 U CN 208026129U CN 201820435393 U CN201820435393 U CN 201820435393U CN 208026129 U CN208026129 U CN 208026129U
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- fluid reservoir
- pipeline
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Abstract
A kind of offline pickling descaling system of heat exchanger, including level-one fluid reservoir, two level fluid reservoir, stirring motor, acid cycle pump, upper liquid pump, ultrasonic level gage, solenoid valve and accessory filtration devices and pipe-line system composition.Level-one fluid reservoir is mainly used to carry out the dissolving of solid sulfamic acid and the storage of solution.It is furnished with ultrasonic level gage and stirring motor in the top of level-one fluid reservoir, two level fluid reservoir is squeezed by the upper liquid pump of level-one liquid storage pot bottom after the completion of acid solution stirring.Ultrasonic level gage is equipped with above two level fluid reservoir, which is used for the cycle of acid solution.If the PH evaluations of heat exchanger exit are greater than the set value, discarded acid solution is discharged into waste liquid pool automatically, if acid solution can be continuing with, returns in two level fluid reservoir, is continuing with.After acidity, it is rinsed using clear water heat exchanging device.The offline pickling descaling system of heat exchanger and process cycles pickling, fluid infusion, discharge waste liquid, the automatic progress of clear water flushing, high degree of automation substantially reduce labor intensity.
Description
Technical field
The utility model is related to be related to exchange heat clear device cleaning system more particularly to a kind of offline pickling descaling system of heat exchanger
System.
Background technology
Heat exchanger is widely used in a variety of industries, is using water as thermophore mostly.Certain salts in water are increased in temperature
And concentration it is higher when will be precipitated from water, be attached to heat exchange pipe surface, form incrustation scale, lead to that heat transfer effect is poor, line clogging
Even tube wall is damaged.
The common descaling method of heat exchanger has Physical and chemical method.Physical is to utilize mechanics, acoustics, optics, electricity,
The principle of calorifics, by the effect of extraneous energy, such as mechanical friction, ultrasonic wave, negative pressure, impacting with high pressure, ultraviolet light, steam are gone
Except body surface dirt.Chemical method is to utilize chemicals or other solvent cleaning body surfaces by the effect of chemical reaction
Dirt such as removes the incrustation scale of body surface with various inorganic or organic acid.
Utility model content
The purpose of this utility model is to provide a kind of offline pickling descaling system of heat exchanger and techniques, using pickle knot
The fouling for closing corrosion inhibiter heat exchanging device carries out offline automatic cleaning.
To achieve the above object, the technical solution of the utility model is specific as follows：
A kind of offline pickling descaling system of heat exchanger, including level-one fluid reservoir, two level fluid reservoir and waste liquid pool, level-one liquid storage
Blender and first liquid level gauge are housed, level-one fluid reservoir is connected with clear water pipeline by the first pipeline and by the second pipeline on tank
It is connected with two level fluid reservoir, the first valve is housed on the first pipeline, the second valve and upper liquid pump are housed on the second pipeline.
Second liquid level gauge is housed, two level fluid reservoir passes through upper liquid pipeline and liquid back pipe road and heat exchanger on two level fluid reservoir
Both ends are connected, and the liquid conveying direction in upper liquid pipeline upper edge in liquid pipeline is sequentially arranged with circulating pump and third valve, liquid back pipe
Liquid conveying direction of the road in liquid back pipe road is sequentially arranged with the 4th valve and PH meters.
Waste liquid pool is connected by third pipeline and the first threeway with liquid back pipe road, and the 5th valve is equipped on third pipeline,
First threeway is located between PH meters and two level fluid reservoir, and the 6th valve is also equipped between the first threeway and two level fluid reservoir.
Clear water pipeline is connected by the 4th pipeline and the second threeway with upper liquid pipeline, and the 7th valve is housed on the 4th pipeline,
Second threeway is also equipped with the 8th valve between third valve and circulating pump between the second threeway and circulating pump.
Further, further include controller, the first to the 8th valve, blender, upper liquid pump, circulating pump, first liquid level gauge,
Second liquid level gauge, PH meters are connected with controller, and controller is counted according to PH, the probe value control valve of liquid level gauge and pump act.
Further, controller PLC, the first to the 8th valve are solenoid valve.
Further, first liquid level gauge and second liquid level gauge are ultrasonic level gage.
Further, further include the first filter device, the second filter device and third filter device, wherein the first filtering
Device is on the second pipeline, and the second filter device is on the upper liquid pipeline between circulating pump and two level fluid reservoir, third mistake
Device is filtered mounted in liquid back pipe road.
Compared with prior art, the beneficial effects of the utility model：
1, acid solution is prepared automatically：It is automatically performed upper water, agitating function in level-one fluid reservoir, forms normal concentration acid solution；
2, automatic cyclic cleaning：The cleaning solution come out by heat exchanger comes back to two level fluid reservoir after filter device filters
Inside it is repeatedly circulated；
3, automatic liquid-feeding：Waste liquid and automatic liquid-feeding is discharged according to the pH value of cleaning solution in controller；
4, auto-flushing：After pickling, pickling raffinate can be squeezed into waste liquid pool automatically and be changed using clear water flushing by system
Hot device
5, it using sulfamic acid, cleans up, to application on human skin fanout free region, the damage of heat exchanging device pipe is small；
6, high degree of automation, it is remote controlled.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the offline pickling descaling system of heat exchanger during the utility model is implemented；
In Fig. 1,1- level-one fluid reservoirs；2- two level fluid reservoirs；3- waste liquid pools；4- heat exchangers；5- clear water pipelines；6- liquid back pipes
Road；The upper liquid pipelines of 7-；The first solenoid valves of 8-；The first ultrasonic level gages of 9-；10- second solenoid valves；The second supersonic liquid levels of 11-
Meter；12- third solenoid valves；The 4th solenoid valves of 13-；The 5th solenoid valves of 14-；The 6th solenoid valves of 15-；The 7th solenoid valves of 16-；17-
8th solenoid valve；18-PH is counted；The first filter devices of 19-；The second filter devices of 20-；21- third filter devices；22- the one or three
It is logical；The second threeways of 23-；24- blenders；The upper liquid pumps of 25-；26- circulating pumps.
Specific implementation mode：
The utility model is described further with reference to the accompanying drawings.
Embodiment
As shown in Figure 1, a kind of offline pickling descaling system of heat exchanger, including level-one fluid reservoir 1, two level fluid reservoir 2 and useless
Liquid pool 3 is equipped with blender 24 and the first ultrasonic level gage 9 on level-one fluid reservoir 1.Level-one fluid reservoir 1 by the first pipeline with
Clear water pipeline 5 is connected and is connected with two level fluid reservoir 2 by the second pipeline, and the first solenoid valve 8, the second pipe are housed on the first pipeline
Road is equipped with second solenoid valve 10 and upper liquid pump 25.
Second ultrasonic level gage 11 is housed, two level fluid reservoir 2 passes through upper liquid pipeline 7 and liquid back pipe on two level fluid reservoir 2
Road 6 is connected with the both ends of heat exchanger 4.Its interior liquid conveying direction of 7 upper edge of upper liquid pipeline is sequentially arranged with circulating pump 26 and third electricity
Magnet valve 12, its interior liquid conveying direction of 6 upper edge of liquid back pipe road are sequentially arranged with the 4th solenoid valve 13 and PH meters 18.
Waste liquid pool 3 is connected by third pipeline and the first threeway 22 with liquid back pipe road 6, and the 5th electricity is equipped on third pipeline
Magnet valve 14, the first threeway 22 are located between PH meters 18 and two level fluid reservoir 2, also pacify between the first threeway 22 and two level fluid reservoir 2
Equipped with the 6th solenoid valve 15.
Clear water pipeline 6 is connected by the 4th pipeline and the second threeway 23 with upper liquid pipeline 7, equipped with the 7th electricity on the 4th pipeline
Magnet valve 16, the second threeway 23 also fill between third solenoid valve 12 and circulating pump 26 between second threeway 23 and circulating pump 26
There is the 8th solenoid valve 17.
First to the 8th solenoid valve (8,10,12,13,14,15,16,17), blender 24, upper liquid pump 25, circulating pump 26,
First ultrasonic level gage 9, the second ultrasonic level gage 11, PH meters 18 are connected with PLC, and PLC is according to PH meters 18, ultrasonic solution
The detection duty control solenoid valve (8,10,12,13,14,15,16,17) of position meter (9,11) and pump (25,26) action.
Filter device can additionally be loaded onto on pipeline to be filtered the dirt washed out, wherein the first filter device
19 on the second pipeline, and the second filter device 20 is mounted on the upper liquid pipeline 7 between circulating pump 26 and two level fluid reservoir 2, the
Three filter devices 21 are on liquid back pipe road 6.
When needing scale removal, following steps are carried out successively：
S1：Heat exchanger 4 and original system are disconnected and drain the water in heat exchanger；
S2：Sulfamic acid and corrosion inhibiter is added in level-one fluid reservoir 1, wherein the proportioning of sulfamic acid and corrosion inhibiter and water
Match 50kg sulfamic acids and 3kg corrosion inhibiter for every cubic meter of water, open the first solenoid valve 8, is visited by the first ultrasonic level gage 9
Survey liquid level.
S3：The first solenoid valve 8 is closed when liquid level reaches predetermined value, starts blender 24, when sulfamic acid and corrosion inhibiter
Blender 24 is closed after completely soluble, the solution concentration in level-one fluid reservoir 1 is 5% at this time, and corresponding pH value is 0.63.
S4：Two level fluid reservoir 2 is added in the cleaning solution in level-one fluid reservoir 1 by liquid pump 25 in startup, and passes through the second ultrasound
Wave liquid level gauge 11 controls 2 liquid volume added of two level fluid reservoir；When second liquid level gauge 11 detects that 2 water level of two level fluid reservoir reaches first in advance
Upper liquid pump 25 is closed when definite value；When 2 water level of two level fluid reservoir is less than second predetermined value, reopens liquid pump 25 and two level is stored up
Flow container 2 carries out fluid infusion until the water level of two level fluid reservoir 2 comes back to first predetermined value.
S5：Keep the 5th solenoid valve 14 and the 7th solenoid valve 16 to close, open third solenoid valve 12, the 4th solenoid valve 13,
6th solenoid valve 15 and the 8th solenoid valve 17 start 26 heat exchanging device 4 of circulating pump and are cleaned；When the probe value of PH meters 18 reaches
When 1.19, acid strength 1% illustrates that sulfamic acid has exhausted.The 6th solenoid valve 15 is closed, the 5th solenoid valve 14 is opened,
Waste liquid in liquid back pipe road 6 flows into waste liquid pool 3, after waste liquid all flows into waste liquid pool 3, closes the 5th solenoid valve 14 and opens the 6th electricity
Magnet valve 15.
S6：Second ultrasonic level gage 11 detects that 2 water level of two level fluid reservoir is less than second predetermined value, liquid pump 25 in unlatching
Fluid infusion is carried out to two level fluid reservoir 2.
S7：Step S1 to S6 is repeated, until after the probe value of PH meters 18 is 0.63, stops wash cycles.
S8：The 6th solenoid valve 15 and the 8th solenoid valve 17 are closed, the 7th solenoid valve 16 and the 5th solenoid valve 14 are opened, is used
The clear water heat exchanging device 4 of clear water pipeline 5 is rinsed, and flushing liquor flows into waste liquid pool 4 through liquid back pipe road 6；When the detection of PH meters 18
When value is identical as clear water, closes the 7th solenoid valve 16 and the 5th solenoid valve 14, scale removal finish, heat exchanger 4 is taken back into original system.
For the waste liquid in waste liquid pool 3, calcium base particle such as lime stone, white lime, quick lime can be added into waste liquid pool 3
Impartial and bleaching liquid, until achromaticity and clarification can direct emission.
Claims (5)
1. a kind of offline pickling descaling system of heat exchanger, which is characterized in that including level-one fluid reservoir, two level fluid reservoir and waste liquid
Pond, blender and first liquid level gauge are equipped on level-one fluid reservoir, and level-one fluid reservoir is connected simultaneously by the first pipeline with clear water pipeline
Be connected with two level fluid reservoir by the second pipeline, the first valve be housed on the first pipeline, on the second pipeline equipped with the second valve and
Upper liquid pump；
Second liquid level gauge, the both ends that two level fluid reservoir passes through upper liquid pipeline and liquid back pipe road and heat exchanger are housed on two level fluid reservoir
It is connected, the liquid conveying direction in upper liquid pipeline upper edge in liquid pipeline is sequentially arranged with circulating pump and third valve, liquid back pipe road
Liquid conveying direction in liquid back pipe road is sequentially arranged with the 4th valve and PH meters；
Waste liquid pool is connected by third pipeline and the first threeway with liquid back pipe road, is equipped with the 5th valve on third pipeline, and first
Threeway is located between PH meters and two level fluid reservoir, and the 6th valve is also equipped between the first threeway and two level fluid reservoir；
Clear water pipeline is connected by the 4th pipeline and the second threeway with upper liquid pipeline, on the 4th pipeline be equipped with the 7th valve, second
Threeway is also equipped with the 8th valve between third valve and circulating pump between the second threeway and circulating pump.
2. a kind of offline pickling descaling system of heat exchanger as described in claim 1, which is characterized in that further include controller, institute
State the first to the 8th valve, blender, upper liquid pump, circulating pump, first liquid level gauge, second liquid level gauge and PH meter with controller phase
Even.
3. a kind of offline pickling descaling system of heat exchanger as claimed in claim 2, which is characterized in that the controller is PLC,
Described first to the 8th valve is solenoid valve.
4. a kind of offline pickling descaling system of heat exchanger as claimed in claim 2, which is characterized in that the first liquid level gauge and
Second liquid level gauge is ultrasonic level gage.
5. a kind of offline pickling descaling system of heat exchanger as described in claim 1, which is characterized in that further include the first filtering dress
It sets, the second filter device and third filter device, wherein the first filter device is on second pipeline, the second filtering dress
It sets on the upper liquid pipeline between the circulating pump and the two level fluid reservoir, third filter device is mounted in the liquid back pipe road
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820435393.2U CN208026129U (en) | 2018-03-29 | 2018-03-29 | A kind of offline pickling descaling system of heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820435393.2U CN208026129U (en) | 2018-03-29 | 2018-03-29 | A kind of offline pickling descaling system of heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208026129U true CN208026129U (en) | 2018-10-30 |
Family
ID=63908721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820435393.2U Expired - Fee Related CN208026129U (en) | 2018-03-29 | 2018-03-29 | A kind of offline pickling descaling system of heat exchanger |
Country Status (1)
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| CN (1) | CN208026129U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195223A (en) * | 2018-03-29 | 2018-06-22 | 中国矿业大学 | A kind of offline pickling descaling system of heat exchanger and technique |
| CN111992548A (en) * | 2020-08-21 | 2020-11-27 | 常州大学 | Device and method for automatically cleaning water circulation pipeline polymer |
-
2018
- 2018-03-29 CN CN201820435393.2U patent/CN208026129U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195223A (en) * | 2018-03-29 | 2018-06-22 | 中国矿业大学 | A kind of offline pickling descaling system of heat exchanger and technique |
| CN111992548A (en) * | 2020-08-21 | 2020-11-27 | 常州大学 | Device and method for automatically cleaning water circulation pipeline polymer |
| CN111992548B (en) * | 2020-08-21 | 2022-07-26 | 常州大学 | Device and method for automatically cleaning water circulation pipeline polymer |
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| GR01 | Patent grant | ||
| 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: 20181030 Termination date: 20210329 |