CN109579608A - A kind of the Fouling Cleaning equipment and its control method of tubular heat exchanger - Google Patents
A kind of the Fouling Cleaning equipment and its control method of tubular heat exchanger Download PDFInfo
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- CN109579608A CN109579608A CN201811627374.0A CN201811627374A CN109579608A CN 109579608 A CN109579608 A CN 109579608A CN 201811627374 A CN201811627374 A CN 201811627374A CN 109579608 A CN109579608 A CN 109579608A
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- Prior art keywords
- heat exchanger
- cleaning
- outer cover
- electromagnetic valve
- cleaning solution
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning In General (AREA)
Abstract
The present invention relates to technical field of heat exchangers, and disclose the Fouling Cleaning equipment and its control method of a kind of tubular heat exchanger, including outer cover of heat exchanger, the left and right sides of the outer cover of heat exchanger is fixedly installed with the first installing pipe for importing fluid low in calories and the second mounting plate for exporting fluid low in calories respectively, the left and right sides of the outer cover of heat exchanger inner cavity is welded with fixed plate, the outer surface of two fixed plates and the inner surface of outer cover of heat exchanger are welding, are fixedly installed with catheter between two outer cover of heat exchanger.The Fouling Cleaning equipment and its control method of the tubular heat exchanger, cooperate the intelligent inside for entering outer cover of heat exchanger using cleaning solution solenoid valve control cleaning solution of PH meter by control cabinet, it ensure that cleaning solution dosage becomes more accurate, avoid the problem of cleaning solution dosage excessively causes cleaning wastage of material, again because of the reduction of cleaning solution dosage, while reducing the subsequent burden to cleaning solution secondary treatment.
Description
Technical field
The present invention relates to technical field of heat exchangers, the Fouling Cleaning equipment and its manipulation of specially a kind of tubular heat exchanger
Method.
Background technique
The horizontal tubular heat exchanger used now takes high temperature wastewater to carry out heat recovery conversion, since waste liquid is work
Industry waste liquid, can be in pipeline outer wall fouling, since tubular heat exchanger is to guarantee whole sealing in tubular heat exchanger containing impurity
Property, it is non-dismountable equipment, causes cleaning difficulty big.
The cleaning way of existing tubular heat exchanger takes chemical cleaning, is chemically to be equipped with acidic chemical cleaning agent
It pours into and carries out soaking wash cycles inside heat exchanger, when cleaning needs a large amount of acidic cleaner, because these cleaning agents are all
Chemicals (such as hydrochloric acid, sulfuric acid and corrosion inhibiter) configures, and reaches heat exchanger cleaning effect, such processing mode there are still
Following problems:
One, since tubular heat exchanger can not be dismantled, internal soil content can not confirm, cause the dosage of cleaning agent that can not determine,
Dosage is very few to cause dirt that can not be removed totally, so as to cause heat exchanger local stoppages, so that heated effluent can not be successfully discharge,
Influence the efficiency of subsequent waste liquid hot-cast socket；Dosage excessively causes the waste of cleaning agent again, while occurring discharge waste liquid again and needing
The problem of secondary treatment, increases the cost of liquid waste processing.
Although two, the inside and outside wall of heat exchanger internal pipeline all does transpassivation processing, since cleaning agent needs in heat exchanger
Portion's residence time is long, stops meeting heat exchanging device for a long time and is corrosive, greatly wears and tears the passivating film inside heat exchanger, very
To the problem of damaging heat exchanger tube, heat exchanger caused to damage.
Summary of the invention
The present invention provides the Fouling Cleaning equipment and its control method of a kind of tubular heat exchanger, have cleaning agent materials
Precisely with etch-proof advantage, solves existing Process of Chemical Cleaning cleaning agent dosage waste and increase subsequent treatment cost and cleaning
The problem of corrosion bad heat exchanger.
The invention provides the following technical scheme: a kind of Fouling Cleaning equipment of tubular heat exchanger, including outer cover of heat exchanger,
The left and right sides of the outer cover of heat exchanger is fixedly installed with the first installing pipe for importing fluid low in calories and respectively for leading
Second mounting plate of fluid low in calories out, the left and right sides of the outer cover of heat exchanger inner cavity are welded with fixed plate, two fixations
The outer surface of plate and the inner surface of outer cover of heat exchanger are welding, are fixedly installed with catheter between two outer cover of heat exchanger,
The both ends of the catheter extend through two fixed plates, and the bottom of the outer cover of heat exchanger inner cavity is fixedly installed with positioned at drain
The first steadying plate outside pipe is fixedly installed with second outside catheter at the top of the outer cover of heat exchanger inner cavity and stablizes
Plate, the left and right sides of the outer cover of heat exchanger top surface are fixedly installed with inlet tube and drain between two fixed plates respectively
It manages, is fixedly installed with tee tube at the top of the inlet tube, be communicated at the top of the tee tube due to importing high heat fluid
Input pipe, be communicated with for exporting high heat fluid, cleaning solution and the liquid suction pipe of passivating solution at the top of the drain pipe, it is described
Control cabinet is placed at the top of outer cover of heat exchanger, the inside of the control cabinet is equipped with electric signal transducer and time-delay relay,
And the output end of electric signal transducer and the input terminal of time-delay relay are electrically connected, the right side of the control cabinet passes through conducting wire electricity
Property be connected with positioned at liquid suction pipe positive PH meter, the sensing head of the PH meter is placed on the interior of outer cover of heat exchanger by drain pipe
Portion, the left and right sides of the tee tube passes through conduit and is fixedly installed with cleaning liquid electromagnetic valve and passivation liquid electromagnetic valve, described clear
The output end of washing lotion solenoid valve and the input terminal and control cabinet that clean liquid electromagnetic valve is electrically connected.
Optionally, second steadying plate is located at the right of the first steadying plate, and the quantity of first steadying plate is three,
The top of three first steadying plates and the bottom of the second steadying plate offer jagged.
Optionally, the input pipe is interconnected when heat exchanger runs well with inlet tube.
Optionally, the fixed plate and catheter junction are equipped with seal rubber.
Optionally, control method is as follows:
Step 1: cleaning liquid electromagnetic valve is in starting state first, passivation liquid electromagnetic valve is in off state, by opening cleaning solution
To cleaning solution is injected inside outer cover of heat exchanger, the liquid of liquid suction pipe heat exchanging device interior of shell continues drawing liquid, PH is counted solenoid valve
It is placed in drain pipe, then the pH value of PH meter detection cleaning solution, the pH value that PH meter will test are imported in control cabinet by conducting wire
Electric signal transducer；
Step 2: electric signal transducer input signal closes cleaning liquid electromagnetic valve at this time when pH value is neutral, at the same be delayed after
The electric appliance trigger predetermined time then opens passivation liquid electromagnetic valve and injects passivating solution, when the induction end of PH meter senses heat exchange
The passivating solution of device interior of shell；
Step 3: taking out PH meter, passivating solution is extracted out by liquid suction pipe, completes the cleaning and passivation of heat exchanging device shell.
Optionally, the left end of the cleaning liquid electromagnetic valve is communicated with cleaning solution ingress pipe, the right side of the passivation liquid electromagnetic valve
End is communicated with passivating solution ingress pipe.
Optionally, it is low concentration cleaning solution that the cleaning solution that liquid electromagnetic valve imports is cleaned in the first step.
Optionally, time-delay relay delay time and liquid suction pipe take out the cleaning solution institute inside fixed plate to the greatest extent in the third step
It takes time consistent, avoids passivating solution and mix to reduce Passivation Treatment effect with cleaning solution.
Optionally, the signal adapter is pulse signal converter, model 4-20ma series, so that signal transmits
For space state, and interval time and cleaning liquid electromagnetic valve and to be passivated liquid electromagnetic valve valve opening time consistent.
The present invention have it is following the utility model has the advantages that
1, the Fouling Cleaning equipment and its control method of the tubular heat exchanger cooperates PH meter intelligent using clear by control cabinet
Washing lotion solenoid valve control cleaning solution enters the inside of outer cover of heat exchanger, ensure that cleaning solution dosage becomes more accurate, avoids
Cleaning solution dosage excessively cause cleaning wastage of material the problem of, and because cleaning solution dosage reduction, while reduce it is subsequent right
The burden of cleaning solution secondary treatment.
2, the Fouling Cleaning equipment and its control method of the tubular heat exchanger cooperates the intelligent benefit of PH meter by control cabinet
The inside for entering outer cover of heat exchanger with passivating solution solenoid valve control passivating solution, allows passivating solution to timely enter outer cover of heat exchanger
Inside, avoid cleaning solution and rest on the inside of outer cover of heat exchanger for a long time and cause the outside of catheter by corrosion leakage
Problem, while also ensuring the timeliness of Passivation Treatment.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is flow diagram of the present invention；
Fig. 3 is the first steadying plate structural schematic diagram of the invention；
Fig. 4 is the second steadying plate structural schematic diagram of the invention.
In figure: 1, outer cover of heat exchanger；11, fixed plate；12, catheter；13, the first steadying plate；14, the second steadying plate；15,
First installing pipe；16, the second mounting plate；17, inlet tube；18, drain pipe；2, control cabinet；21, PH is counted；22, conducting wire；23, it is passivated
Liquid electromagnetic valve；24, liquid electromagnetic valve is cleaned；3, liquid suction pipe；4, tee tube；5, input pipe.
Specific embodiment
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 clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-4, a kind of Fouling Cleaning equipment of tubular heat exchanger, including outer cover of heat exchanger 1, outer cover of heat exchanger
1 left and right sides is fixedly installed with the first installing pipe 15 for importing fluid low in calories and respectively for exporting fluid low in calories
The second mounting plate 16, the left and right sides of 1 inner cavity of outer cover of heat exchanger is welded with fixed plate 11, and the second steadying plate 14 is located at first
The right of steadying plate 13, the quantity of the first steadying plate 13 are three, the top of three the first steadying plates 13 and the second steadying plate 14
Bottom offer jagged, component of the cleaning solution to the greatest extent between two fixed plates 11 is connect
Touching, avoids the catheter 12 positioned at bottom and is difficult to thoroughly contact with cleaning solution, to guarantee the quality of cleaning process, two solid
The outer surface of fixed board 11 and the inner surface of outer cover of heat exchanger 1 are welding, are fixedly installed with catheter between two outer cover of heat exchanger 1
12, the both ends of catheter 12 extend through two fixed plates 11, and the bottom of 1 inner cavity of outer cover of heat exchanger is fixedly installed with positioned at drain
The first steadying plate 13 outside pipe 12, second be fixedly installed at the top of 1 inner cavity of outer cover of heat exchanger outside catheter 12
Steadying plate 14, the left and right sides of 1 top surface of outer cover of heat exchanger are fixedly installed with the inlet tube between two fixed plates 11 respectively
17 and drain pipe 18, the top of inlet tube 17 is fixedly installed with tee tube 4, and the top of tee tube 4 is communicated with due to importing high fever
The input pipe 5 of fluid is measured, input pipe 5 is interconnected when heat exchanger runs well with inlet tube 17, and the top of drain pipe 18 connects
It is connected with the liquid suction pipe 3 for exporting high heat fluid, cleaning solution and passivating solution, the top of outer cover of heat exchanger 1 is placed with control cabinet
2, the inside of control cabinet 2 is equipped with electric signal transducer and time-delay relay, and signal adapter is pulse signal converter, type
Number for 4-20ma series, so that signal is transmitted as space state, and interval time and cleaning liquid electromagnetic valve 24 and it is passivated liquid electromagnetic
23 valve opening time of valve is consistent, and the input terminal of the output end of electric signal transducer and time-delay relay is electrically connected, control
The right side of case 2 processed is electrically connected with by conducting wire 22 passes through drain positioned at the sensing head that the positive PH of liquid suction pipe 3 counts 21, PH meter 21
Pipe 18 is placed on the inside of outer cover of heat exchanger 1, and fixed plate 11 and 12 junction of catheter are equipped with seal rubber, so that two fixations
Liquid between plate 11 will not leak to the inside of fixed plate 11, ensure that the liquid inside fixed plate 11 in heat transfer process
In non-contaminated state, the left and right sides of tee tube 4 passes through conduit and is fixedly installed with cleaning liquid electromagnetic valve 24 and passivation liquid electromagnetic
The output end of valve 23, the input terminal and control cabinet 2 that clean liquid electromagnetic valve 24 and clean liquid electromagnetic valve 24 is electrically connected.
Optionally, control method is as follows:
Step 1: cleaning liquid electromagnetic valve 24 is in starting state first, passivation liquid electromagnetic valve 23 is in off state, it is clear by opening
Washing lotion solenoid valve 24 is communicated with cleaning solution importing to cleaning solution, the left end of cleaning liquid electromagnetic valve 24 is injected inside outer cover of heat exchanger 1
The right end of pipe, passivation liquid electromagnetic valve 23 is communicated with passivating solution ingress pipe, and the liquid inside 3 heat exchanging device shell 1 of liquid suction pipe continues
PH meter 21 is placed in drain pipe 18 by drawing liquid, and then the pH value of 21 detection cleaning solution of PH meter, the pH value that PH meter 21 will test are logical
The electric signal transducer that conducting wire 22 imports in control cabinet 2 is crossed, the cleaning solution that cleaning liquid electromagnetic valve 24 imports in the first step is low dense
Cleaning solution is spent, so that cleaning agent dosage be avoided excessively to cause cleaning wastage of material and ask erosion outside fixed plate 11 is excessive
Topic；
Step 2: electric signal transducer input signal closes cleaning liquid electromagnetic valve 24 at this time when pH value is neutral, it is delayed simultaneously
The relay trigger predetermined time then opens passivation liquid electromagnetic valve 23 and injects passivating solution, when the induction end induction of PH meter 21
Passivating solution to inside outer cover of heat exchanger 1；
Step 3: taking out PH meter 21, passivating solution is extracted out by liquid suction pipe 3, completes the cleaning and passivation of heat exchanging device shell 1, the
Time-delay relay delay time is consistent with the time required to liquid suction pipe 3 takes out the cleaning solution inside fixed plate 11 to the greatest extent in three steps, avoids
Passivating solution mixes to reduce Passivation Treatment effect with cleaning solution.
It should be noted that, in this document, 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 including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of Fouling Cleaning equipment of tubular heat exchanger, including outer cover of heat exchanger (1), it is characterised in that: the heat exchanger
The left and right sides of shell (1) is fixedly installed with the first installing pipe (15) for importing fluid low in calories and low for exporting respectively
The left and right sides of the second mounting plate (16) of heat fluid, outer cover of heat exchanger (1) inner cavity is welded with fixed plate (11), and two
The outer surface of a fixed plate (11) and the inner surface of outer cover of heat exchanger (1) are to weld, solid between two outer cover of heat exchanger (1)
Dingan County is equipped with catheter (12), and the both ends of the catheter (12) extend through two fixed plates (11), the outer cover of heat exchanger
(1) bottom of inner cavity is fixedly installed with first steadying plate (13) external positioned at catheter (12), and the outer cover of heat exchanger (1) is interior
Second steadying plate (14) external positioned at catheter (12) is fixedly installed at the top of chamber, outer cover of heat exchanger (1) top surface
The left and right sides is fixedly installed with inlet tube (17) and drain pipe (18) between two fixed plates (11), the feed liquor respectively
It is fixedly installed with tee tube (4), is communicated at the top of the tee tube (4) due to importing high heat fluid at the top of pipe (17)
Input pipe (5) is communicated with for exporting high heat fluid, cleaning solution and the liquid suction pipe of passivating solution at the top of the drain pipe (18)
(3), it is placed with control cabinet (2) at the top of the outer cover of heat exchanger (1), the inside of the control cabinet (2) is equipped with electric signal and turns
Parallel operation and time-delay relay, and the input terminal of the output end of electric signal transducer and time-delay relay is electrically connected, the control
The right side of case (2) is electrically connected with by conducting wire (22) positioned at the positive PH meter (21) of liquid suction pipe (3), the sense of the PH meter (21)
Gauge head is placed on the inside of outer cover of heat exchanger (1) by drain pipe (18), and the left and right sides of the tee tube (4) passes through conduit
It is fixedly installed with cleaning liquid electromagnetic valve (24) and passivation liquid electromagnetic valve (23), the cleaning liquid electromagnetic valve (24) and cleaning liquid electromagnetic
The input terminal of valve (24) and the output end of control cabinet (2) are electrically connected.
2. a kind of Fouling Cleaning equipment of tubular heat exchanger according to claim 1, it is characterised in that: described second is steady
Fixed board (14) is located at the right of the first steadying plate (13), and the quantity of first steadying plate (13) is three, three described first
The top of steadying plate (13) and the bottom of the second steadying plate (14) offer jagged.
3. a kind of Fouling Cleaning equipment of tubular heat exchanger according to claim 1, it is characterised in that: the input pipe
(5) it is interconnected when heat exchanger runs well with inlet tube (17).
4. a kind of Fouling Cleaning equipment of tubular heat exchanger according to claim 1, it is characterised in that: the fixed plate
(11) and catheter (12) junction is equipped with seal rubber.
5. a kind of Fouling Cleaning equipment of tubular heat exchanger according to claim 1, control method is as follows, feature
It is: step 1: cleaning liquid electromagnetic valve (24) is in starting state first, passivation liquid electromagnetic valve (23) is in off state, passes through
It is interior to injection cleaning solution, liquid suction pipe (3) heat exchanging device shell (1) inside outer cover of heat exchanger (1) to open cleaning liquid electromagnetic valve (24)
The liquid in portion continues drawing liquid, and PH meter (21) is placed in drain pipe (18), and then PH counts the pH value of (21) detection cleaning solution, PH
The pH value that meter (21) will test imports the electric signal transducer in control cabinet (2) by conducting wire (22)；Step 2: in when pH value being
Property when, electric signal transducer input signal closes cleaning liquid electromagnetic valve (24) at this time, while time-delay relay trigger is predetermined
Time then opens passivation liquid electromagnetic valve (23) and injects passivating solution, when the induction end of PH meter (21) senses outer cover of heat exchanger (1)
Internal passivating solution；Step 3: taking out PH meter (21), passivating solution is extracted out by liquid suction pipe (3), is completed heat exchanging device shell (1)
Cleaning and passivation.
6. a kind of control method of the Fouling Cleaning equipment of tubular heat exchanger according to claim 5, it is characterised in that:
The left end of cleaning liquid electromagnetic valve (24) is communicated with cleaning solution ingress pipe, and the right end of passivation liquid electromagnetic valve (23) is communicated with
Passivating solution ingress pipe.
7. the Fouling Cleaning equipment and its control method, feature of a kind of tubular heat exchanger according to claim 5 exist
In: it is low concentration cleaning solution that the cleaning solution that liquid electromagnetic valve (24) import is cleaned in the first step.
8. the Fouling Cleaning equipment and its control method, feature of a kind of tubular heat exchanger according to claim 5 exist
In: time-delay relay delay time is taken out the cleaning solution that fixed plate (11) are internal to the greatest extent with liquid suction pipe (3) and is taken in the third step
Between it is consistent, avoid passivating solution and mixed with cleaning solution to reducing Passivation Treatment effect.
9. the Fouling Cleaning equipment and its control method, feature of a kind of tubular heat exchanger according to claim 5 exist
In: the signal adapter is pulse signal converter, and model 4-20ma is serial, so that signal is transmitted as space state,
And interval time is consistent with cleaning liquid electromagnetic valve (24) and passivation liquid electromagnetic valve (23) valve opening time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811627374.0A CN109579608A (en) | 2018-12-28 | 2018-12-28 | A kind of the Fouling Cleaning equipment and its control method of tubular heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811627374.0A CN109579608A (en) | 2018-12-28 | 2018-12-28 | A kind of the Fouling Cleaning equipment and its control method of tubular heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109579608A true CN109579608A (en) | 2019-04-05 |
Family
ID=65933448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811627374.0A Pending CN109579608A (en) | 2018-12-28 | 2018-12-28 | A kind of the Fouling Cleaning equipment and its control method of tubular heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109579608A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114367247A (en) * | 2021-12-10 | 2022-04-19 | 中氢新能(北京)新能源技术研究院有限公司 | Spacer and shell and tube reaction unit |
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|---|---|---|---|---|
| CN201688748U (en) * | 2010-02-09 | 2010-12-29 | 彭迪昆 | Special cleaning device for wall-hanging boiler |
| CN202032923U (en) * | 2011-04-06 | 2011-11-09 | 北京化工大学 | Tube-shell type heat exchanger of large-small hole baffle plate with gap |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114367247A (en) * | 2021-12-10 | 2022-04-19 | 中氢新能(北京)新能源技术研究院有限公司 | Spacer and shell and tube reaction unit |
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Application publication date: 20190405 |
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