CN110455119A - Gate-type heat exchanger cleaning of outer surface device and method - Google Patents
Gate-type heat exchanger cleaning of outer surface device and method Download PDFInfo
- Publication number
- CN110455119A CN110455119A CN201910766396.3A CN201910766396A CN110455119A CN 110455119 A CN110455119 A CN 110455119A CN 201910766396 A CN201910766396 A CN 201910766396A CN 110455119 A CN110455119 A CN 110455119A
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- China
- Prior art keywords
- heat exchanger
- panel assembly
- arc panel
- stringer
- cleaning
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- 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
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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
- 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
- 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)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The present invention relates to a kind of gate-type heat exchanger cleaning of outer surface device and methods.Its technical solution is the door frame that two groups or more is equipped on the outside of heat exchanger, top between two groups or more door frame is installed by a piece stringer, lower part is installed by two linear guides, arc panel assembly is installed between stringer and linear guide, and the top of arc panel assembly is flexibly connected by stringer mobile mechanism with stringer, lower part is flexibly connected with linear guide, arc panel assembly is semicircular structure, and the top of heat exchanger is set, and arc panel assembly is equipped with rotary nozzle, it is moved reciprocatingly by beam mobile mechanism drives edge stringer, heat exchanging device is cleaned.Beneficial effect is: the present invention is done around heat exchanger around rotation using cleaning sprayer, in conjunction with cleaning sprayer along heat exchanger front-rear reciprocation movement, simultaneously because keeping in-site installation simply light using the structure of door case type, the crane frequency of use of construction site is reduced, operating efficiency is improved, construction cost is reduced.
Description
Technical field
The present invention relates to a kind of heat exchanger cleaning devices to post method, in particular to a kind of gate-type heat exchanger cleaning of outer surface dress
It sets and method.
Background technique
The heat exchanger cleaning of outer surface of the existing country is all to hold giant cleaning using artificial, and the external prior art is
High pressure water cleaning rifle is fixed on a crossbeam parallel with cleaned heat exchanger, and can be reciprocatingly moved, while heat exchanger needs
360 ° of rolling is done to complete washing and cleaning operation.Itself the problem is that: 1, artificial cleaning has construction intensity high, and there are safety
Hidden danger, operating efficiency is low, and as constantly increasing for cost of labor causes the cost of washing and cleaning operation being also continuously improved；2, state
Although outer cleaning device is using the cleaning of automation, but because be to be washed heat exchanger and constantly rolled to have one
The rolling of heat exchanger is driven to the idler wheel of rotation, while also needing crane to be carried after heat exchanger washes a platform.By
Cause required crane tonnage also increasing in present heat exchanger is increasing, daily lease cost is also improving.This
Though sample one carrys out labour cost and saves but the expense of equipment is substantially increased again, this is also that this technology of foreign countries is caused to exist
The major reason that the country can not promote always.
Summary of the invention
The purpose of the present invention is to drawbacks described above of the existing technology, and it is clear to provide a kind of gate-type heat exchanger outer surface
Cleaning device and method reduce the crane frequency of use of construction site, improve operating efficiency, reduce construction cost.
Its technical solution be include stringer (1), door frame (2), linear guide (3), arc panel assembly (4), stringer mobile mechanism
(5), arc plate mobile device (6), are equipped with two groups or more door frame (2) on the outside of heat exchanger (a), and two groups or two groups
A stringer (1) is installed on top between above door frame (2), and two linear guides (3) are installed in lower part, stringer (1) and straight
Arc panel assembly (4) are installed between line guide rail (3), and the top of arc panel assembly (4) passes through stringer mobile mechanism (5) and stringer (1)
It is flexibly connected, lower part is flexibly connected with linear guide (3), and arc panel assembly (4) is semicircular structure, and is arranged in heat exchanger (a)
Top, and arc panel assembly (4) be equipped with rotary nozzle (9), reciprocal fortune is done by beam mobile mechanism (5) drives edge stringer (1)
Dynamic, heat exchanging device (a) is cleaned.
Preferably, above-mentioned rotary nozzle (9) is mounted on the lower part of U-shaped frame (8), is equipped with driving group in the side of U-shaped frame (8)
Wheel (10) is closed, the driving end of driving combination wheel (10) is equipped with drive motor combination (11), and drive motor combines (11) and drives
Combination wheel (10) rotation is driven, and U-shaped frame (8) is driven to do semicircular movement around arc panel assembly (4), makes rotary nozzle (9)
It is cleaned around heat exchanger (a).
Preferably, elastic compression wheel assembly (7) are installed in the side of above-mentioned U-shaped frame (8), and elastic compression wheel assembly (7) is U
Shape structure.
Preferably, it is equipped with four groups of elastic compression wheel assemblies (7) on U-shaped frame (8), is set in pairs arc plate dress
Set the two sides of (4), the open end on the top of elastic compression wheel assembly (7) by connection axis connection, and under arc panel assembly (4)
The downside bottom plate for being fixed on U-shaped frame (8), and downside bottom plate is bolted in side contacts, the lower part of elastic compression wheel assembly (7)
Center it is fixed rotary nozzle (9).
Preferably, driving combination wheel (10) is installed between the top of U-shaped frame (8) and the upper surface of arc panel assembly (4)
With top sheave (12).
Preferably, above-mentioned U-shaped frame (8) includes bottom plate (8.1), the first T shape frame (8.2) and the 2nd T shape frame (8.3), described
The bottom of first T shape frame (8.2) and the 2nd T shape frame (8.3) is fixed together with bottom plate (8.1)；The arc panel assembly (4)
Two sides upper and lower surface be respectively equipped with protrusion arc-shaped side (4.1), arc-shaped side (4.1) top be equipped with top sheave
(12), lower section is equipped with lower sheave (13), and top sheave (12) is connect with the bottom support surface of T shape frame.
Preferably, above-mentioned lower sheave (13) be located at T shape frame bottom support surface and inside elastic compression wheel assembly (7) it
Between.
Preferably, the outer edge of above-mentioned driving combination wheel (10) is equipped with broached-tooth design.
A kind of application method for gate-type heat exchanger cleaning of outer surface device that the present invention mentions, including following procedure:
One, it is assembling gate-type heat exchanger cleaning of outer surface device first, two groups of door frames (2) is equipped on the outside of heat exchanger (a),
A stringer (1) is installed on top between two groups of door frames (2), and two linear guides (3) are installed in lower part, in stringer (1) and straight line
Arc panel assembly (4) are installed between guide rail (3), and the top of arc panel assembly (4) is living by stringer mobile mechanism (5) and stringer (1)
Dynamic connection, lower part are flexibly connected with linear guide (3), and arc panel assembly (4) is semicircular structure, and is arranged in heat exchanger (a)
Top, and arc panel assembly (4) is equipped with rotary nozzle (9) and arc plate mobile device (6)；
Two, heat exchanging device is cleaned, and starts stringer mobile mechanism (5), arc panel assembly (4) is made to be located at one end of heat exchanger (a),
Then start arc plate mobile device (6), so that rotary nozzle (9) is done lateral circular movement along heat exchanger (a), carry out simultaneously
Hydro-peening after one reciprocating action of hydro-peening, then drives stringer mobile mechanism (5), does arc panel assembly (4) along heat exchanger (a) vertical
To a work shift, then rotary nozzle (9) is made to do lateral circular movement along heat exchanger (a)；It circuits sequentially, until
Rotary nozzle (9) by entire heat exchanger (a), all complete by cleaning；
Three, when washing a heat exchanger preparation cleaning next, only then arc panel assembly (4) need to be moved to one end of door frame
Linear guide (3) is risen to higher than after being washed the height of heat exchanger, is push whole by linear guide of dismantling (3) and arc panel assembly (4)
A device move to it is next washed heat exchanger, then put down linear guide (3) and connect and can continue with arc panel assembly (4)
Cleaning.
The beneficial effects of the present invention are: the present invention is done by the way of rotation using cleaning sprayer around heat exchanger, in conjunction with clear
Spray head is washed along heat exchanger front-rear reciprocation movement, simultaneously because make in-site installation simply light using tower structure, two
Complete all installations in worker's half an hour, and due to overall structure it is simple but also washing a heat exchanger after clean next
When scene move and become simple, to reduce the crane frequency of use of construction site, reach and really improve operating efficiency,
Reduce the purpose of construction cost.
Detailed description of the invention
Attached drawing 1 is structural schematic diagram of the invention；
Attached drawing 2 is the structural schematic diagram of arc panel assembly；
Attached drawing 3 is the partial sectional view of arc panel assembly；
Attached drawing 4 is side view of the invention；
In upper figure: stringer 1, door frame 2, linear guide 3, arc panel assembly 4, stringer mobile mechanism 5, arc plate mobile device 6,
Elastic compression wheel assembly 7, U-shaped frame 8, rotary nozzle 9, driving combination wheel 10, drive motor combine 11, top sheave 12, lower sheave
13, heat exchanger a, arc-shaped side 4.1, bottom plate 8.1, the first T shape frame 8.2 and the 2nd T shape frame 8.3.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Embodiment 1, a kind of gate-type heat exchanger cleaning of outer surface device that the present invention mentions, including stringer 1, door frame 2, straight line
Guide rail 3, arc panel assembly 4, stringer mobile mechanism 5, arc plate mobile device 6, be equipped on the outside of heat exchanger a two groups or two groups with
On door frame 2, the top between two groups or more door frame 2 installs a stringer 1, and two linear guides 3 are installed in lower part,
Arc panel assembly 4 is installed between stringer 1 and linear guide 3, and the top of arc panel assembly 4 passes through stringer mobile mechanism 5 and stringer 1
It being flexibly connected, lower part is flexibly connected with linear guide 3, and arc panel assembly 4 is semicircular structure, and the top of heat exchanger a is arranged in,
And arc panel assembly 4 is equipped with rotary nozzle 9, is moved reciprocatingly by 5 drives edge stringer 1 of beam mobile mechanism, heat exchanging device a is carried out
Cleaning.
Wherein, rotary nozzle 9 is mounted on the lower part of U-shaped frame 8, is equipped with driving combination wheel 10 in the side of U-shaped frame 8, described
The driving end of combination wheel 10 is driven to be equipped with drive motor combination 11, drive motor combination 11 drives driving combination wheel 10 to rotate, and
It drives U-shaped frame 8 to do semicircular movement around arc panel assembly 4, cleans rotary nozzle 9 around heat exchanger a.
In addition, elastic compression wheel assembly 7 is installed in the side of U-shaped frame 8, and elastic compression wheel assembly 7 is U-shaped structure；U-shaped
Frame 8 is equipped with four groups of elastic compression wheel assemblies 7, is set in pairs the two sides of arc panel assembly 4, elastic compression wheel assembly
The open end on 7 top is by connection axis connection, and the contacts-side-down with arc panel assembly 4, the lower part of elastic compression wheel assembly 7 are logical
Cross the downside bottom plate for being bolted and being fixed on U-shaped frame 8, and the fixed rotary nozzle 9 in center of downside bottom plate.
Driving combination wheel 10 and top sheave 12 are installed between the top of U-shaped frame 8 and the upper surface of arc panel assembly 4, on
It states U-shaped frame 8 and includes bottom plate 8.1, the first T shape frame 8.2 and the 2nd T shape frame 8.3, the first T shape frame 8.2 and the 2nd T shape frame 8.3
Bottom be fixed together with bottom plate 8.1；The two sides upper and lower surface of the arc panel assembly 4 is respectively equipped with the arc-shaped of protrusion
Side 4.1 is equipped with top sheave 12 in the top of arc-shaped side 4.1, and lower section is equipped with lower sheave 13, top sheave 12 and T shape frame
Bottom support surface connection.
Preferably, above-mentioned lower sheave 13 is located between the bottom support surface of T shape frame and the elastic compression wheel assembly 7 of inside, on
The outer edge for the driving combination wheel 10 stated is equipped with broached-tooth design.
The invention is characterized in that AU type frame 8 wraps arc panel assembly 4.The cooperation of U-shaped frame 8 and arc panel assembly 4 is pressed by elasticity
Bearing up pulley component 7 and upper lower sheave are completed.BU type frame 8 is combined along the movement of arc panel assembly 4 by the driving for being fixed on U-shaped 8 side of frame
Wheel 10, which is completed to can be chain sprocket form, is also possible to perforation mesh form of the gear arcuately on plate.The top of CU type frame 8
Suspending rod to be open in order to arc plate passes through, and lower part is closing connection, and rotary nozzle 9 is fixed on lower part.
A kind of application method for gate-type heat exchanger cleaning of outer surface device that the present invention mentions, including following procedure:
One, it is assembling gate-type heat exchanger cleaning of outer surface device first, is equipped with two groups of door frames 2 on the outside of heat exchanger a, two groups
A stringer 1 is installed on top between door frame 2, and lower part is installed two linear guides 3, installed between stringer 1 and linear guide 3
Arc panel assembly 4, and the top of arc panel assembly 4 is flexibly connected by stringer mobile mechanism 5 with stringer 1, lower part and linear guide 3 are living
Dynamic connection, arc panel assembly 4 is semicircular structure, and the top of heat exchanger a is arranged in, and arc panel assembly 4 is equipped with rotary nozzle 9
With arc plate mobile device 6；
Two, heat exchanging device is cleaned, and is started stringer mobile mechanism 5, so that arc panel assembly 4 is located at one end of heat exchanger a, then open
Dynamic arc plate mobile device 6, makes rotary nozzle 9 do lateral circular movement along heat exchanger a, while carrying out hydro-peening, hydro-peening one
After a reciprocating action, then stringer mobile mechanism 5 is driven, arc panel assembly 4 is made to do a longitudinal work shift along heat exchanger a,
Rotary nozzle 9 is set to do lateral circular movement along heat exchanger a again；It circuits sequentially, until rotary nozzle 9 is by entire heat exchanger
A all complete by cleaning；
Three, when washing a heat exchanger preparation cleaning next, arc panel assembly 4 need to be only moved to one end of door frame and then torn open
Fall linear guide 3 and arc panel assembly 4, linear guide 3 is risen to higher than after being washed the height of heat exchanger, it is flat to push whole device
Move on to it is next washed heat exchanger, then putting down linear guide 3 and connecting with arc panel assembly 4 can continue to clean.
Embodiment 2, difference from Example 1 of the present invention is:
Arc plate can also hang over 5 both sides of stringer mobile mechanism on stringer 1 using two blocks of symmetrical short arc long arc plates, at this moment clear
Hair washing can be two sets and from both sides while clean simultaneously.
The above, is only part preferred embodiment of the invention, and anyone skilled in the art may benefit
Equivalent technical solution is modified or is revised as with the technical solution of above-mentioned elaboration.Therefore, technology according to the present invention
Any simple modification or substitute equivalents that scheme is carried out, belong to the greatest extent the scope of protection of present invention.
Claims (9)
1. a kind of gate-type heat exchanger cleaning of outer surface device, it is characterized in that: including stringer (1), door frame (2), linear guide
(3), arc panel assembly (4), stringer mobile mechanism (5), arc plate mobile device (6), are equipped with two on the outside of heat exchanger (a)
A stringer (1), lower part peace are installed in group or door frame more than two (2), the top between two groups or more door frame (2)
Two linear guides (3) are filled, arc panel assembly (4) are installed between stringer (1) and linear guide (3), and arc panel assembly (4) is upper
Portion is flexibly connected by stringer mobile mechanism (5) with stringer (1), and lower part is flexibly connected with linear guide (3), arc panel assembly (4)
For semicircular structure, and it is arranged in the top of heat exchanger (a), and arc panel assembly (4) is equipped with rotary nozzle (9), is moved by beam
Motivation structure (5) drives edge stringer (1) moves reciprocatingly, and heat exchanging device (a) is cleaned.
2. gate-type heat exchanger cleaning of outer surface device according to claim 1, it is characterized in that: the rotary nozzle (9) is pacified
Mounted in the lower part of U-shaped frame (8), driving combination wheel (10), the drive of driving combination wheel (10) are equipped in the side of U-shaped frame (8)
Moved end is equipped with drive motor combination (11), and drive motor combines (11) and drives driving combination wheel (10) rotation, and drives U-shaped frame
(8) semicircular movement is done around arc panel assembly (4), cleans rotary nozzle (9) around heat exchanger (a).
3. gate-type heat exchanger cleaning of outer surface device according to claim 2, it is characterized in that: the side of the U-shaped frame (8)
It installs elastic compression wheel assembly (7), and elastic compression wheel assembly (7) is U-shaped structure.
4. gate-type heat exchanger cleaning of outer surface device according to claim 3, it is characterized in that: being equipped with four on U-shaped frame (8)
Group elastic compression wheel assembly (7), is set in pairs the two sides of arc panel assembly (4), elastic compression wheel assembly (7) it is upper
The open end in portion is by connection axis connection, and the contacts-side-down with arc panel assembly (4), the lower part of elastic compression wheel assembly (7) are logical
The downside bottom plate for being bolted and being fixed on U-shaped frame (8) is crossed, and the center of downside bottom plate is fixed rotary nozzle (9).
5. gate-type heat exchanger cleaning of outer surface device according to claim 4, it is characterized in that: U-shaped frame (8) top with
Driving combination wheel (10) and top sheave (12) are installed between the upper surface of arc panel assembly (4).
6. gate-type heat exchanger cleaning of outer surface device according to claim 1, it is characterized in that: the U-shaped frame (8) includes bottom
Plate (8.1), the first T shape frame (8.2) and the 2nd T shape frame (8.3), the bottom of the first T shape frame (8.2) and the 2nd T shape frame (8.3)
Portion is fixed together with bottom plate (8.1)；The two sides upper and lower surface of the arc panel assembly (4) is respectively equipped with the arc-shaped of protrusion
Side (4.1) is equipped with top sheave (12) in the top of arc-shaped side (4.1), and lower section is equipped with lower sheave (13), top sheave (12)
It is connect with the bottom support surface of T shape frame.
7. gate-type heat exchanger cleaning of outer surface device according to claim 6, it is characterized in that: the lower sheave (13) is located at
Between the bottom support surface of T shape frame and the elastic compression wheel assembly (7) of inside.
8. gate-type heat exchanger cleaning of outer surface device according to claim 1, it is characterized in that: the driving combination wheel
(10) outer edge is equipped with broached-tooth design.
9. the application method of gate-type heat exchanger cleaning of outer surface device according to claim 1 to 8, feature
It is: including following procedure:
One, it is assembling gate-type heat exchanger cleaning of outer surface device first, two groups of door frames (2) is equipped on the outside of heat exchanger (a),
A stringer (1) is installed on top between two groups of door frames (2), and two linear guides (3) are installed in lower part, in stringer (1) and straight line
Arc panel assembly (4) are installed between guide rail (3), and the top of arc panel assembly (4) is living by stringer mobile mechanism (5) and stringer (1)
Dynamic connection, lower part are flexibly connected with linear guide (3), and arc panel assembly (4) is semicircular structure, and is arranged in heat exchanger (a)
Top, and arc panel assembly (4) is equipped with rotary nozzle (9) and arc plate mobile device (6)；
Two, heat exchanging device is cleaned, and starts stringer mobile mechanism (5), arc panel assembly (4) is made to be located at one end of heat exchanger (a),
Then start arc plate mobile device (6), so that rotary nozzle (9) is done lateral circular movement along heat exchanger (a), carry out simultaneously
Hydro-peening after one reciprocating action of hydro-peening, then drives stringer mobile mechanism (5), does arc panel assembly (4) along heat exchanger (a) vertical
To a work shift, then rotary nozzle (9) is made to do lateral circular movement along heat exchanger (a)；It circuits sequentially, until
Rotary nozzle (9) by entire heat exchanger (a), all complete by cleaning；
Three, when washing a heat exchanger preparation cleaning next, only then arc panel assembly (4) need to be moved to one end of door frame
Linear guide (3) is risen to higher than after being washed the height of heat exchanger, is push whole by linear guide of dismantling (3) and arc panel assembly (4)
A device move to it is next washed heat exchanger, then put down linear guide (3) and connect and can continue with arc panel assembly (4)
Cleaning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910766396.3A CN110455119B (en) | 2019-08-20 | 2019-08-20 | Device and method for cleaning outer surface of door type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910766396.3A CN110455119B (en) | 2019-08-20 | 2019-08-20 | Device and method for cleaning outer surface of door type heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110455119A true CN110455119A (en) | 2019-11-15 |
| CN110455119B CN110455119B (en) | 2020-09-29 |
Family
ID=68487659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910766396.3A Expired - Fee Related CN110455119B (en) | 2019-08-20 | 2019-08-20 | Device and method for cleaning outer surface of door type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110455119B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2075332U (en) * | 1990-09-19 | 1991-04-17 | 北京燕山石油化工公司合成橡胶厂 | High-pressure jet-flow cleaner for external surface of heat-exchanger tubulation |
| CN101672600A (en) * | 2009-08-25 | 2010-03-17 | 沈阳仪表科学研究院 | Automatic cleaning device of indirect air cooler for power station |
| JP2013029232A (en) * | 2011-07-27 | 2013-02-07 | Kurita Engineering Co Ltd | Tube bundle cleaning apparatus |
| CN204063281U (en) * | 2014-04-02 | 2014-12-31 | 美的集团股份有限公司 | Air conditioner room unit and there is its air-conditioner |
| CN205784839U (en) * | 2016-06-17 | 2016-12-07 | 北京石油化工学院 | A kind of circular alignment system cleaned for heat exchanger tube pass |
| CN206073803U (en) * | 2016-06-16 | 2017-04-05 | 北京石油化工学院 | A kind of alignment system for heat exchanger shell pass cleaning |
| CN108168363A (en) * | 2018-01-12 | 2018-06-15 | 西安华唐电力工程有限公司 | Air preheater Mobile portable formula cleaning device |
| CN208059675U (en) * | 2018-04-19 | 2018-11-06 | 王广东 | Mechanical tube bank cleaning device |
-
2019
- 2019-08-20 CN CN201910766396.3A patent/CN110455119B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2075332U (en) * | 1990-09-19 | 1991-04-17 | 北京燕山石油化工公司合成橡胶厂 | High-pressure jet-flow cleaner for external surface of heat-exchanger tubulation |
| CN101672600A (en) * | 2009-08-25 | 2010-03-17 | 沈阳仪表科学研究院 | Automatic cleaning device of indirect air cooler for power station |
| JP2013029232A (en) * | 2011-07-27 | 2013-02-07 | Kurita Engineering Co Ltd | Tube bundle cleaning apparatus |
| CN204063281U (en) * | 2014-04-02 | 2014-12-31 | 美的集团股份有限公司 | Air conditioner room unit and there is its air-conditioner |
| CN206073803U (en) * | 2016-06-16 | 2017-04-05 | 北京石油化工学院 | A kind of alignment system for heat exchanger shell pass cleaning |
| CN205784839U (en) * | 2016-06-17 | 2016-12-07 | 北京石油化工学院 | A kind of circular alignment system cleaned for heat exchanger tube pass |
| CN108168363A (en) * | 2018-01-12 | 2018-06-15 | 西安华唐电力工程有限公司 | Air preheater Mobile portable formula cleaning device |
| CN208059675U (en) * | 2018-04-19 | 2018-11-06 | 王广东 | Mechanical tube bank cleaning device |
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|---|---|
| CN110455119B (en) | 2020-09-29 |
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Granted publication date: 20200929 Termination date: 20210820 |