CN206638084U - Desulfurizer heat exchanger shell scale removal chemical cleaning system - Google Patents
Desulfurizer heat exchanger shell scale removal chemical cleaning system Download PDFInfo
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- CN206638084U CN206638084U CN201720166356.1U CN201720166356U CN206638084U CN 206638084 U CN206638084 U CN 206638084U CN 201720166356 U CN201720166356 U CN 201720166356U CN 206638084 U CN206638084 U CN 206638084U
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- heat exchanger
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- service sink
- acid solution
- cleaning
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Abstract
It the utility model is related to desulfurizer heat exchanger shell scale removal chemical cleaning system, it includes service sink, the service sink is connected with water supply line and dosing pipeline, cleaning pipeline is communicated with the side of service sink, cleaning pump and filter are installed on the cleaning pipeline and are connected with transverse tube type heat exchanger to be cleaned, acid solution reflux pipeline and waste reflux pipeline are connected with the drain pipe of the transverse tube type heat exchanger, the acid solution reflux pipeline is connected with service sink, the waste reflux pipeline is connected with discharging of waste liquid house steward, the discharging of waste liquid house steward is connected with waste collection pond.This system can effectively be removed to the fouling of desulfurizer heat exchanger shell, it is recovered normal operation, and then improve operating efficiency, ensure that being normally carried out for generation, by taking out stains, and then recover heat exchanger and use function.
Description
Technical field
The utility model belongs to sulfuric acid production process technical field, more particularly to a kind of desulfurizer heat exchanger shell scale removal
Chemical cleaning system, the scale removal of heat exchanger suitable for sulfuric acid production process.
Background technology
Need to use the equipment such as heat exchanger in sulphuric acid process, but these equipment in use can fouling,
The operational efficiency of equipment can be had a strong impact on after fouling, and then has a strong impact on production efficiency, periodic operation just needs for a period of time
Equipment is cleaned, and then removes fouling.
The heat exchange equipment that our factory uses at present is tower, diameter 6600mm total height 16000mm, heat exchanger tube 57mmx3
Tubulation material 20#+ aluminisings, 6400 square metres of heat exchange area, housing and other materials are q345.Tube side inlet and outlet piping diameter
2600mm, shell side inlet and outlet piping diameter 1400mm.Heat exchanger tube pass shell side medium is sulfur dioxide and sulfur trioxide flue gas.At present
It is poor to run heat transfer effect, does not reach normal requirement, analysis reason is shell side fouling, results in blockage and tubulation dirt adheres to.Therefore,
The fouling of heat exchanging device is needed to be cleared up.
Utility model content
The purpose of this utility model is to provide a kind of desulfurizer heat exchanger shell scale removal chemical cleaning system, and this system can
Fouling to desulfurizer heat exchanger shell is effectively removed, and it is recovered normal operation, and then improves operating efficiency,
Being normally carried out for generation is ensure that, by taking out stains, and then recovers heat exchanger and uses function.
To reach above-mentioned purpose, design of the present utility model is：Desulfurizer heat exchanger shell scale removal Chemical cleaning system
System, it includes service sink, and the service sink is connected with water supply line and dosing pipeline, and cleaning is communicated with the side of service sink
Pipeline, described clean are provided with cleaning pump and filter on pipeline and are connected with transverse tube type heat exchanger to be cleaned, the transverse tube
Acid solution reflux pipeline and waste reflux pipeline, the acid solution reflux pipeline and service sink phase are connected with the drain pipe of formula heat exchanger
Even, the waste reflux pipeline is connected with discharging of waste liquid house steward, and the discharging of waste liquid house steward is connected with waste collection pond.
The water supply line includes running water pipe, and the running water pipe is connected by water pump with service sink, in the pipe of water pump
Water valve is installed on road.
The dosing pipeline includes acid liquor storage tank, and the liquid outlet of the acid liquor storage tank passes through acid solution excavationg pump and cleaning
Pond is connected.
The acid solution reflux pipeline includes acid solution return duct, and acid solution control valve is provided with the acid solution return duct.
The waste reflux pipeline includes waste reflux pipe, and waste liquid control valve is provided with the waste liquid water flow pipes.
High-pressure steam-cleaning device is connected with simultaneously on the transverse tube type heat exchanger, the high-pressure steam-cleaning device includes
High steam tank, the high steam tank are connected with transverse tube type heat exchanger by high-pressure steam pipe, pacified on the high-pressure steam pipe
Equipped with steam control valve, the top installation blast pipe of the transverse tube type heat exchanger.
Brushwork epoxy resin coating on the inwall of the service sink, the compound pickling of cleaning is filled inside the service sink
Medicament.
The cleaning pipeline is connected by return valve with service sink.
The utility model has the advantages that：
1st, can be drawn by carrying out analysis to the chemical composition of fouling, it is mainly calcium carbonate and dihydrate gypsum, therefore,
Molten dirt cleaning is carried out by using the method for compound pickling, round-robin method and infusion method is respectively adopted soak cleaning is carried out to dirty sample,
And further cleared up and then to it in scale removal process by adding inhibition, cleaning additive into acid solution.By adopting
Fouling that can be inside heat exchanging device with above-mentioned chemical cleaning system is effectively cleared up, and then improves cleaning efficiency.
2nd, protection can be played a part of to service sink by scribbling one layer of epoxy coating on the inwall of service sink, prevented
Only it is corroded by acid solution, improves its durability.
3rd, can be ensured after heat exchanger cleaning is completed by being passed through high steam to it by installing high steam tank
Further cleaning, improves its cleaning efficiency.
4th, by setting acid solution reflux pipeline to ensure to carry out wash cycles, and then acid solution is reused, saved
About resource, improves resource utilization, while reduce production cost.
5th, the acid solution that operation is cleaned multiple times can be filtered by installing filter on cleaning pipeline, prevents impurity
Enter inside heat exchanger to be cleaned, and then damage heat exchanger.
6th, acid solution can easily be added to adjust its concentration, and then optimal cleaning by installing dosing pipeline
Effect.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the utility model overall structure diagram.
In figure：Running water pipe 1, water pump 2, acid liquor storage tank 3, acid solution excavationg pump 4, waste collection pond 5, water valve 6, waste liquid row
Put house steward 7, service sink 8, Compound-acid wash agent 9, waste liquid control valve 10, acid solution return duct 11, acid solution control valve 12, go out liquid
Pipe 13, return valve 14, cleaning pump 15, high steam tank 16, filter 17, blast pipe 18, transverse tube type heat exchanger 19, high steam
Pipe 20, steam control valve 21, cleaning pipeline 22.
Embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
Fig. 1 is participated in, desulfurizer heat exchanger shell scale removal chemical cleaning system, it includes service sink 8, the service sink 8
It is connected with water supply line and dosing pipeline, cleaning pipeline 22 is communicated with the side of service sink 8, is installed on the cleaning pipeline 22
There are cleaning pump 15 and filter 17 and be connected with transverse tube type heat exchanger 19 to be cleaned, the drain pipe of the transverse tube type heat exchanger 19
Acid solution reflux pipeline and waste reflux pipeline are connected with 13, the acid solution reflux pipeline is connected with service sink 8, and the waste liquid returns
Flow tube line is connected with discharging of waste liquid house steward 7, and the discharging of waste liquid house steward 7 is connected with waste collection pond 5.Using above-mentioned cleaning system
In the course of work of uniting, service sink 8 is set first around heat exchange equipment to be cleaned, then passes through benefit inside service sink 8
Water pipeline and dosing pipeline is kept the skin wet to its inside or acid solution, by being pumped into inside heat exchanger after supplement is completed,
And then heat exchanging device is soaked and wash cycles, treat again to be recycled acid solution after its cleaning a period of time, and then
Carry out and clean, finally improve cleaning efficiency, the waste liquid cleaned after terminating will be recovered to useless by discharging of waste liquid house steward 7
Inside liquid collecting pit 5, the effect of environmental protection is served.
Further, the water supply line includes running water pipe 1, and the running water pipe 1 passes through water pump 2 and the phase of service sink 8
Even, water valve 6 is installed on the pipeline of water pump 2.Can be to supplementing running water, Jin Erfang inside service sink 8 by water supply line
Just the concentration of regulation acid solution.
Further, the dosing pipeline includes acid liquor storage tank 3, and the liquid outlet of the acid liquor storage tank 3 passes through acid solution
Excavationg pump 4 is connected with service sink 8.Acid solution constantly can be supplemented to its inside by dosing pipeline, be finally reached regulation acid solution
The purpose of concentration.
Further, the acid solution reflux pipeline includes acid solution return duct 11, and acid is provided with the acid solution return duct 11
Hydraulic control valve door 12.The backflow of acid solution can be controlled by acid solution control valve 12.
Further, the waste reflux pipeline includes waste reflux pipe, and waste liquid control is provided with the waste liquid water flow pipes
Valve 10 processed.It can ensure to reclaim waste liquid to focus on and then to waste liquid by waste reflux pipe, serve ring
The purpose of guarantor, but also can reuse.
Further, high-pressure steam-cleaning device, the high steam are connected with simultaneously on the transverse tube type heat exchanger 19
Cleaning device includes high steam tank 16, and the high steam tank 16 passes through high-pressure steam pipe 20 and the phase of transverse tube type heat exchanger 19
Even, steam control valve 21, the top installation blast pipe of the transverse tube type heat exchanger 19 are installed on the high-pressure steam pipe 20
18.After to the end of heat exchanger cleans, it can reach final by being passed through high steam to its inside and then further clean
The purpose of cleaning.
Further, brushwork epoxy resin coating on the inwall of the service sink 8, cleaning is filled inside the service sink 8
Compound-acid wash agent 9.Prevent it from being corroded by acid solution, improve its durability.
Further, the cleaning pipeline 22 is connected by return valve 14 with service sink 8.
The course of work and operation principle of the present utility model：
Predicted according to dirty body thickness, intend carrying out infusion cleaning.From various concentrations and formula medicament, as far as possible
Ground reduces cost, reaches cleaning performance.
Pipeline is passed in and out using shell side, makes import Butterworth Hatch, scavenger circuit is formed with cleaning pump, groove and pipeline, is changed
Learn circulation immersion cleaning.It is as follows to be primarily intended for project flow：
1st, shell side air inlet and outlet pipe are cut off, closure blind plate is welded in shell side side, on blind plate fabrication and installation cleaning connect
Mouth and valve.
2nd, service sink, size 2mx3mx1 rice are made near heat exchanger tower, service sink can use brick, inner side smearing cement
Mortar and brushwork epoxy resin coating, meet discharging of waste liquid house steward 7 and arrive waste collection pond 5, if valve.
3rd, Compound-acid wash agent is prepared by service sink, by pumping plant, medicament is injected in tower and soaked.
4th, by compression pump, medicament circulation is carried out.
5th, molten dirt and waste liquid are discharged, carries out clear water displacement, empty clear water.
Operated more than repeating as needed, plan is cleaned three times.
Chemical cleaning medicine selects foundation：
（1）Purpose principle（2）Principle of sound accounting（3）Economy principle；
A, the fast molten dirt of scale removal speed is thorough.Cleaning medicine itself has very strong reaction to dirt, disperses or dissolves removing energy
Power, within the duration as short as possible, it can more thoroughly remove crude removal.
B, the damage to cleaning equipment should be in the range of national regulations, and corroding caused by possible to metal has corresponding suppression
Measure processed.
C, it is cheap and easily-available that institute's useful agents are cleaned, and based on production domesticization；Cleaning cost is reduced, does not cause excess resource to disappear
Consumption.
D, for cleaning agent to human body, biology with environment member poison or low toxicity, the waste gas generated should be able to handle symbol with waste residue
Close the requirement of national relevant laws and regulations.
E, cleaning condition is gentle, tries one's best independent of additional intensified condition, and such as temperature, pressure, mechanical energy are not needed
Too high requirement.
Embodiment of the present utility model is explained in detail with reference to accompanying drawing, but the utility model be not limited to it is above-mentioned
Embodiment.Technical staff can be without prejudice to innovative point of the present utility model and operating procedure, in claims
It is interior, above-described embodiment is modified.The scope of protection of the utility model, it should be covered such as claims of the present utility model.
Claims (8)
1. desulfurizer heat exchanger shell scale removal chemical cleaning system, it is characterised in that：It includes service sink（8）, the service sink
（8）Be connected with water supply line and dosing pipeline, in service sink（8）Side be communicated with cleaning pipeline（22）, the cleaning pipe
Line（22）On cleaning pump is installed（15）And filter（17）And with transverse tube type heat exchanger to be cleaned（19）It is connected, the transverse tube
Formula heat exchanger（19）Drain pipe（13）On be connected with acid solution reflux pipeline and waste reflux pipeline, the acid solution reflux pipeline with
Service sink（8）It is connected, the waste reflux pipeline and discharging of waste liquid house steward（7）It is connected, the discharging of waste liquid house steward（7）With waste liquid
Collecting pit（5）It is connected.
2. desulfurizer heat exchanger shell scale removal chemical cleaning system according to claim 1, it is characterised in that：The moisturizing
Pipeline includes running water pipe（1）, the running water pipe（1）Pass through water pump（2）With service sink（8）It is connected, in water pump（2）Pipeline
On water valve is installed（6）.
3. desulfurizer heat exchanger shell scale removal chemical cleaning system according to claim 1, it is characterised in that：The dosing
Pipeline includes acid liquor storage tank（3）, the acid liquor storage tank（3）Liquid outlet pass through acid solution excavationg pump（4）With service sink（8）Phase
Even.
4. desulfurizer heat exchanger shell scale removal chemical cleaning system according to claim 1, it is characterised in that：The acid solution
Reflux pipeline includes acid solution return duct（11）, the acid solution return duct（11）On acid solution control valve is installed（12）.
5. desulfurizer heat exchanger shell scale removal chemical cleaning system according to claim 1, it is characterised in that：The waste liquid
Reflux pipeline includes waste reflux pipe, and waste liquid control valve is provided with the waste liquid water flow pipes（10）.
6. desulfurizer heat exchanger shell scale removal chemical cleaning system according to claim 1, it is characterised in that：The transverse tube
Formula heat exchanger（19）Upper to be connected with high-pressure steam-cleaning device simultaneously, the high-pressure steam-cleaning device includes high steam tank
（16）, the high steam tank（16）Pass through high-pressure steam pipe（20）With transverse tube type heat exchanger（19）It is connected, the high steam
Pipe（20）On steam control valve is installed（21）, the transverse tube type heat exchanger（19）Top installation blast pipe（18）.
7. desulfurizer heat exchanger shell scale removal chemical cleaning system according to claim 1, it is characterised in that：The cleaning
Pond（8）Inwall on brushwork epoxy resin coating, the service sink（8）Inside fills the Compound-acid wash agent of cleaning（9）.
8. desulfurizer heat exchanger shell scale removal chemical cleaning system according to claim 1, it is characterised in that：The cleaning
Pipeline（22）Pass through return valve（14）With service sink（8）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720166356.1U CN206638084U (en) | 2017-02-23 | 2017-02-23 | Desulfurizer heat exchanger shell scale removal chemical cleaning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720166356.1U CN206638084U (en) | 2017-02-23 | 2017-02-23 | Desulfurizer heat exchanger shell scale removal chemical cleaning system |
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| Publication Number | Publication Date |
|---|---|
| CN206638084U true CN206638084U (en) | 2017-11-14 |
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ID=60251624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720166356.1U Active CN206638084U (en) | 2017-02-23 | 2017-02-23 | Desulfurizer heat exchanger shell scale removal chemical cleaning system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107879399A (en) * | 2017-12-14 | 2018-04-06 | 蒋云龙 | The effluent purifying equipment of recyclable waste heat |
| 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 |
| CN114593631A (en) * | 2022-01-14 | 2022-06-07 | 江西东江环保技术有限公司 | Chemical descaling method for evaporator |
| CN115287640A (en) * | 2022-07-05 | 2022-11-04 | 岚图汽车科技有限公司 | Coating descaling treatment full-line cleaning system |
-
2017
- 2017-02-23 CN CN201720166356.1U patent/CN206638084U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107879399A (en) * | 2017-12-14 | 2018-04-06 | 蒋云龙 | The effluent purifying equipment of recyclable waste heat |
| 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 |
| CN114593631A (en) * | 2022-01-14 | 2022-06-07 | 江西东江环保技术有限公司 | Chemical descaling method for evaporator |
| CN115287640A (en) * | 2022-07-05 | 2022-11-04 | 岚图汽车科技有限公司 | Coating descaling treatment full-line cleaning system |
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