CN110170236A - A kind of spray absorber and its construction method - Google Patents
A kind of spray absorber and its construction method Download PDFInfo
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- CN110170236A CN110170236A CN201910544231.1A CN201910544231A CN110170236A CN 110170236 A CN110170236 A CN 110170236A CN 201910544231 A CN201910544231 A CN 201910544231A CN 110170236 A CN110170236 A CN 110170236A
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- pressure
- hydraulic jacking
- lift
- preset value
- tower
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a kind of spray absorber and its construction method, a kind of construction method of spray absorber is the following steps are included: S1, fixed lifting device；S2, tower wall are built；S3, lifting operation；S4, sense weight, during the jacking of S3, the average lift-up pressure value of each hydraulic jacking device is calculated according to the lift-up pressure of hydraulic jacking device, and value range is arranged according to average lift-up pressure value, if have the pressure on hydraulic jacking device beyond the value range, it reduces or accelerates it and jack speed, its lift-up pressure and the lift-up pressure of other hydraulic jacking devices is made to reach unanimity；S5, next piece of siding is wound around outside hydraulic jacking device, upper and lower two pieces of tower walls is welded integral；S6, it is repeated in the step of S3, S4 and S5.Can effectively each hydraulic jacking device be monitored and be adjusted, so that it is guaranteed that each hydraulic jacking device has high lifting accuracy, then make the absorption tower better quality built.
Description
Technical field
The present invention relates to gas absorption cleaning equipment technical field, in particular to a kind of spray absorber and its construction party
Method.
Background technique
Absorption tower is the equipment for realizing absorption operation.It is divided into three classes by the gas-liquid form that is in contact.The first kind is gas with gas
Steep plate column, bubble absorbing tower, the stirring bubble absorbing tower of form dispersion in the liquid phase；Second class is that liquid is dispersed with droplet-like
Injector, Venturi tube, spray tower in the gas phase；Third class is the packing material absorbing that liquid is contacted with membranaceous movement with gas phase
Tower and film-falling absorption tower.In tower the type of flow of gas-liquid two-phase can adverse current can also cocurrent.Generally use counter-current operation, absorbent
It being flowed from above to below with tower top addition, is contacted with the gas flowed from bottom to top, the liquid for absorbing absorbent is discharged from tower bottom,
Purified gas is discharged from tower top.
And since absorption tower is very big, cause it to build more difficult.Mode point is built for absorption tower at present
It is three kinds, one is formal dress, i.e., build upwards since the bottom on absorption tower, and this mode is led due to needing to build scaffold
Cause its construction period very long and at high cost；Another kind is to reverse, i.e., at the top of the absorption tower build, after completing a section
Be delivered up, then proceed to build absorption tower, built until completing absorb the bottom of the tower, which build it is simple, at low cost and
Build quality height；Finally one is formal dress and reversing to combine.
Wherein, the Chinese patent that publication No. is 106836836 A of CN, the applying date is on January 23rd, 2017 discloses one kind
A kind of secondary hydraulic lifting installation method of Flue Gas Desulphurization for Coal-burning Power Plant tower transformation, including lower layer's tower body are promoted and upper layer tower
Body is promoted, including following construction technology step: being prepared → is dismantled connection outside tower → demister dismounting → tower body before construction and add
Gu → lifting device arrangement → tower body cutting, promotion → assembling tower wall plate.
It is identical with the mode for building absorption tower in upper patent although being transformation.It could be aware that, falling by upper patent
It when turning, is jacked due to using multiple hydraulic devices, and is influenced due to installing by ground environment, error is deposited in addition
It is not ensuring that all hydraulic devices are mounted on same level height, in other words, can there is height between hydraulic device
It is poor to spend, and therefore, difficult point is that how to control each hydraulic device is able to maintain consistent height during jacking, really with this
Protecting the absorption tower being finally completed will not tilt, and make it have higher build guality.
Summary of the invention
The purpose of the present invention one is to provide a kind of construction method of spray absorber, the lifting accuracy between all hydraulic cylinder
Height, build guality with higher.
Above-mentioned technical purpose one of the invention has the technical scheme that
A kind of construction method of spray absorber, comprising the following steps:
S1, fixed lifting device, all hydraulic jacking apparatus is evenly distributed in the circumferential direction；
S2, tower wall are built, and siding is wound around outside hydraulic jacking device, siding both ends are then formed annular to vertical welding
Tower wall structure；
S3, lifting operation start hydraulic jacking device, slowly jack up the tower wall in S2 upwards；
S4, sense weight calculate each hydraulic lifting according to the lift-up pressure of hydraulic jacking device and fill during the jacking of S3
The average lift-up pressure value set, and value range is arranged according to average lift-up pressure value, if there is the pressure on hydraulic jacking device super
Out when the value range, reduces or accelerate it jacking speed, make the lift-up pressure of its lift-up pressure and other hydraulic jacking devices
It reaches unanimity；
S5, S5, after completing jacking, next piece of siding is wound around outside hydraulic jacking device, then by the opposition seam weld at siding both ends
It connects to form annular column wall construction, then weld upper and lower two pieces of tower walls integral；
S6, it is repeated in the step of S3, S4 and S5, until the whole tower wall for completing absorption tower is built.
So set, can effectively each hydraulic jacking device be monitored and be adjusted, so that it is guaranteed that each hydraulic top
Rising device has high lifting accuracy, then makes the absorption tower better quality built.
Further preferably are as follows: be provided on each hydraulic jacking device:
Pressure sensor device, for detecting the lift-up pressure of lifting device, when top lifting height is greater than the first preset value, output subtracts
Fast signal exports acceleration signals when top lifting height is less than the second preset value:
Switching circuit, in response to reduce-speed sign/acceleration signals, for controlling hydraulic jacking device deceleration/acceleration jacking.
So set, by lift-up pressure of the pressure sensor device to each hydraulic jacking device carry out instant detection and
Monitoring, and feed back into switching circuit, the jacking speed of hydraulic jacking device is adjusted, thus reach ensure it is each hydraulic
The lift-up pressure of jacking apparatus reaches unanimity.
Further preferably are as follows: pressure sensor device includes:
Pressure sensor for detecting the lift-up pressure of hydraulic jacking device, and exports a detection signal；
Comparison circuit receives detection signal, for compare detection signal amplitude and the first preset value and the second preset value it is big
It is small, export reduce-speed sign or acceleration signals.
Further preferably are as follows: comparison circuit includes:
First preset value generative circuit, output one is for the first preset value compared with detecting signal；
First comparator, noninverting input receive detection signal, and reverse input end receives described first and states preset value, output end
Export reduce-speed sign；
Second preset value generative circuit, output one is for the second preset value compared with detecting signal；
Second comparator, reverse input end receive detection signal, and noninverting input receives described second and states preset value, output end
Export acceleration signals.
So set, two comparators of setting are compared, above-mentioned value range is corresponded to this.
Further preferably are as follows: switching circuit includes the first resistor being arranged in series with hydraulic jacking device, second resistance,
Three resistance and start switch, at the same control second resistance and 3rd resistor on-off second control circuit and for singly
The solely first control circuit of control 3rd resistor on-off；
First control circuit is controlled by reduce-speed sign disconnection；Second control circuit is controlled by acceleration signals conducting.
So set, by the on-off valve regulation to three series resistances, to reach the jacking speed of control hydraulic jacking device
The effect of degree.
Further preferably are as follows: first control circuit include the first triode being connect with the output end of first comparator, by
It controls in the first triode on-off and the first relay of opening and closing and is controlled by the 3rd 3 of the first relay on-off and on-off
Pole pipe, the first relay are normally closed relay.
So set, realizing that first control circuit is able to respond the reduce-speed sign of first comparator output.
Further preferably are as follows: second control circuit include the second triode being connect with the output end of the second comparator, by
It controls in the second triode on-off and the second relay of opening and closing and is controlled by the 4th 3 of the second relay on-off and on-off
Pole pipe, the second relay are normally opened relay.
So set, realizing that second control circuit is able to respond the acceleration signals of the second comparator output.
Further preferably are as follows: in step sl, postpone in the cloth for completing hydraulic jacking device, installed in the middle part of lifting device
One bracket is provided with a support rod between bracket and each hydraulic jacking device.
So set, being reinforced to hydraulic jacking device.
Further preferably are as follows: in step sl, postponed in the cloth for completing hydraulic jacking device, it is solid outside hydraulic jacking device
Dingan County fills an installation packing around setting in lifting device one week.
So set, playing auxiliaring effect, is surrounded convenient for siding and form arc-shaped tower wall.
The purpose of the present invention two is to provide a kind of spray absorber.
Above-mentioned technical purpose two of the invention has the technical scheme that
A kind of spray absorber, including tower body, tower body include multiple tower walls along direction of axis line, it is characterized in that: tower body uses
Above-mentioned method construction forms.
To sum up, the invention has the following advantages:
Can effectively each hydraulic jacking device be monitored and be adjusted, so that it is guaranteed that each hydraulic jacking device is with high
Lifting accuracy, then make build absorption tower better quality.
Detailed description of the invention
Fig. 1 is the circuit diagram of comparison circuit in embodiment one；
Fig. 2 is the circuit diagram of switching circuit in embodiment one；
Fig. 3 is the structural schematic diagram of spray absorber.
In figure, 100, tower body；200, comparison circuit；210, the first preset value generative circuit；220, the second preset value generates
Circuit；310, first control circuit；320, second control circuit；A1, first comparator；A2, the second comparator；R7, the first electricity
Resistance；R8, second resistance；R9,3rd resistor；SB, it starts switch；Q1, the first triode；Q2, the second triode；Q3, the three or three
Pole pipe；Q4, the 4th triode；KM1, the first relay；KM2, the second relay.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
In the description of the present invention, it is to be understood that, the orientation or position of the instructions such as term " on ", "lower", "left", "right"
Setting relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, rather than
The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is interpreted as limitation of the present invention.
A kind of embodiment 1: construction method of spray absorber, comprising the following steps:
S1, fixed lifting device, all hydraulic jacking apparatus is evenly distributed in the circumferential direction, complete hydraulic jacking device
Cloth postpones, and a bracket is installed in the middle part of lifting device, a support rod is provided between bracket and each hydraulic jacking device, then
An installation packing around setting in lifting device one week is fixedly mounted outside hydraulic jacking device.
S2, tower wall are built, and siding are wound around outside hydraulic jacking device, then being formed to vertical welding by siding both ends
Annular column wall construction；
S3, lifting operation start hydraulic jacking device, slowly jack up the tower wall in S2 upwards；
S4, sense weight calculate each hydraulic lifting according to the lift-up pressure of hydraulic jacking device and fill during the jacking of S3
The average lift-up pressure value set, and value range is arranged according to average lift-up pressure value, at this point it is possible to first jacking causes tower wall hanging,
Jacking operation is further continued for after range value data to be obtained.
Wherein, it if having the pressure on hydraulic jacking device beyond the value range, reduces or accelerates it jacking speed, make it
The lift-up pressure of lift-up pressure and other hydraulic jacking devices reaches unanimity.
Above-mentioned jacking speed is adjusted can be by the pressure sensor device and switch on each hydraulic jacking device of setting
Circuit is realized.
As shown in Figure 1, pressure sensor device is used to detect the lift-up pressure of lifting device comprising pressure sensor and ratio
Compared with circuit 200, pressure sensor is used to detect the lift-up pressure of hydraulic jacking device, and exports a detection signal.
Comparison circuit 200 includes the first preset value generative circuit 210, first comparator A1, the second preset value generative circuit
The 220 and second comparator A2,
When top lifting height is greater than the first preset value, reduce-speed sign is exported, when top lifting height is less than the second preset value, output adds
Fast signal: for the first preset value compared with detecting signal, the second preset value is raw for the first preset value generative circuit 210 output one
At circuit 220, output one is for the second preset value compared with detecting signal.
The noninverting input of first comparator A1 receives detection signal, and reverse input end receives first and states preset value, works as inspection
When the amplitude of survey signal states preset value greater than first, reduce-speed sign is exported in output end.
The reverse input end of second comparator A2 receives detection signal, and noninverting input receives second and states preset value, works as inspection
When survey signal amplitude states preset value less than first, output end exports acceleration signals.
As shown in Fig. 2, switching circuit include the first resistor R7 being arranged in series with hydraulic jacking device, second resistance R8,
3rd resistor R9 and start switch SB, at the same control the second control circuit of second resistance R8 and 3rd resistor R9 on-off
320 and the first control circuit 310 for individually controlling 3rd resistor R9 on-off.
Wherein, in conjunction with attached drawing 1, first control circuit 310 includes the one or three connect with the output end of first comparator A1
Pole pipe Q1, be controlled by the first triode Q1 on-off and the first relay KM1 of opening and closing and be controlled by the first relay KM1
The third transistor Q3 of on-off and on-off, the first relay KM1 are normally closed relay.When receiving reduce-speed sign, the first control
Circuit 310 processed disconnects, and first resistor R7, second resistance R8 and 3rd resistor R9 connect energizations, and hydraulic jacking device jacking is fast
Degree reduces.
Second control circuit 320 includes the second triode Q2 connecting with the output end of the second comparator A2, is controlled by
Two triode Q2 on-off and the second relay of opening and closing and the 4th triode for being controlled by the second relay on-off and on-off
Q4, the second relay are normally opened relay, and first control circuit 310 is controlled by reduce-speed sign disconnection.Receiving acceleration signals
When, second control circuit 320 is connected, at this point, second resistance R8 and 3rd resistor R9 short circuit, only first resistor R7 is connected, therefore,
Hydraulic jacking device, which jacks speed, to be accelerated.
And when detecting signal between the first preset value and the second preset value, first control circuit 310 is connected, and second
Control circuit 320 disconnects, and therefore, first resistor R7 and second resistance R8 are powered.
S5, after completing jacking, next piece of siding is wound around outside hydraulic jacking device, then by the opposition seam weld at siding both ends
It connects to form annular column wall construction, then weld upper and lower two pieces of tower walls integral.
S6, it is repeated in the step of S3, S4 and S5, until the whole tower wall for completing absorption tower is built.
Embodiment 2: a kind of spray absorber, as shown in figure 3, including tower body 100, tower body 100 includes along direction of axis line
There are multiple tower walls, tower body 100 is formed using the method construction in embodiment 1.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the protection scope of invention.
Claims (10)
1. a kind of construction method of spray absorber, it is characterised in that the following steps are included:
S1, fixed lifting device, all hydraulic jacking apparatus is evenly distributed in the circumferential direction；
S2, tower wall are built, and siding is wound around outside hydraulic jacking device, siding both ends are then formed annular to vertical welding
Tower wall structure；
S3, lifting operation start hydraulic jacking device, slowly jack up the tower wall in S2 upwards；
S4, sense weight calculate each hydraulic lifting according to the lift-up pressure of hydraulic jacking device and fill during the jacking of S3
The average lift-up pressure value set, and value range is arranged according to average lift-up pressure value, if there is the pressure on hydraulic jacking device super
Out when the value range, reduces or accelerate it jacking speed, make the lift-up pressure of its lift-up pressure and other hydraulic jacking devices
It reaches unanimity；
S5, after completing jacking, next piece of siding is wound around outside hydraulic jacking device, then by siding both ends to vertical welding shape
Tower wall structure is circularized, is then welded upper and lower two pieces of tower walls integral；
S6, it is repeated in the step of S3, S4 and S5, until the whole tower wall for completing absorption tower is built.
2. the construction method of a kind of spray absorber according to claim 1, it is characterized in that: being all provided on each hydraulic jacking device
It is equipped with:
Pressure sensor device, for detecting the lift-up pressure of lifting device, when top lifting height is greater than the first preset value, output subtracts
Fast signal exports acceleration signals when top lifting height is less than the second preset value:
Switching circuit, in response to reduce-speed sign/acceleration signals, for controlling hydraulic jacking device deceleration/acceleration jacking.
3. the construction method of a kind of spray absorber according to claim 2, it is characterized in that: pressure sensor device includes:
Pressure sensor for detecting the lift-up pressure of hydraulic jacking device, and exports a detection signal；
Comparison circuit (200) receives detection signal, for comparing the amplitude and the first preset value and the second preset value of detection signal
Size, export reduce-speed sign or acceleration signals.
4. the construction method of a kind of spray absorber according to claim 3, it is characterized in that: comparison circuit (200) includes:
First preset value generative circuit (210), output one is for the first preset value compared with detecting signal；
First comparator, noninverting input receive detection signal, and reverse input end receives described first and states preset value, output end
Export reduce-speed sign；
Second preset value generative circuit (220), output one is for the second preset value compared with detecting signal；
Second comparator, reverse input end receive detection signal, and noninverting input receives described second and states preset value, output end
Export acceleration signals.
5. according to Claims 2 or 3 or a kind of construction method of 4 spray absorber, it is characterized in that: switching circuit includes and liquid
Pressure jacking apparatus be arranged in series first resistor, second resistance, 3rd resistor and start switch, at the same control second resistance
First control circuit with the second control circuit (320) of 3rd resistor on-off and for individually controlling 3rd resistor on-off
(310)；
First control circuit (310) is controlled by reduce-speed sign disconnection；Second control circuit (320) is controlled by acceleration signals conducting.
6. the construction method of a kind of spray absorber according to claim 5, it is characterized in that: first control circuit (310) includes
The first triode for being connect with the output end of first comparator, be controlled by the first triode on-off and the first relay of opening and closing
Device and the third transistor for being controlled by the first relay on-off and on-off, the first relay are normally closed relay.
7. the construction method of a kind of spray absorber according to claim 5, it is characterized in that: second control circuit (320) includes
The second triode for being connect with the output end of the second comparator, be controlled by the second triode on-off and the second relay of opening and closing
Device and the 4th triode for being controlled by the second relay on-off and on-off, the second relay are normally opened relay.
8. a kind of construction method of spray absorber according to claim 1, it is characterized in that: in step sl, it is hydraulic in completion
The cloth of jacking apparatus postpones, and a bracket is installed in the middle part of lifting device, is provided with one between bracket and each hydraulic jacking device
Support rod.
9. according to claim 1 or a kind of 8 construction method of spray absorber completes liquid it is characterized in that: in step sl
The cloth of pressure jacking apparatus postpones, and an installation packing around setting in lifting device one week is fixedly mounted outside hydraulic jacking device.
10. a kind of spray absorber, including tower body (100), tower body (100) include multiple tower walls along direction of axis line, special
Sign is: tower body (100) is formed using the method construction of any one of embodiment 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910544231.1A CN110170236B (en) | 2019-06-21 | 2019-06-21 | Spray absorption tower and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910544231.1A CN110170236B (en) | 2019-06-21 | 2019-06-21 | Spray absorption tower and construction method thereof |
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| Publication Number | Publication Date |
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| CN110170236A true CN110170236A (en) | 2019-08-27 |
| CN110170236B CN110170236B (en) | 2022-02-11 |
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| CN201910544231.1A Active CN110170236B (en) | 2019-06-21 | 2019-06-21 | Spray absorption tower and construction method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2094540U (en) * | 1991-06-18 | 1992-01-29 | 张艳秋 | Speed controller for lifting structure |
| JPH08224003A (en) * | 1995-11-20 | 1996-09-03 | Iseki & Co Ltd | Hydraulic pressure regulating device of tractor |
| CN101169663A (en) * | 2007-11-02 | 2008-04-30 | 上海市基础工程公司 | Pneumatic caisson air pressure automatic regulation system |
| CN205804437U (en) * | 2016-06-30 | 2016-12-14 | 杭州敦固建筑特种工程有限公司 | A kind of dystopy that synchronizes blocks lifting inclination-correcting device |
| CN205874994U (en) * | 2016-07-08 | 2017-01-11 | 江苏燕宁建设工程有限公司 | A multi -point synchronization hydraulic pressure jacking system for bridge beam supports changes |
| CN106836836A (en) * | 2017-01-23 | 2017-06-13 | 山东国舜建设集团有限公司 | A kind of Flue Gas Desulphurization for Coal-burning Power Plant tower transforms secondary hydraulic lifting installation method |
| CN108775081A (en) * | 2018-08-11 | 2018-11-09 | 中国电建集团贵州电力设计研究院有限公司 | A kind of hydraulic lifting inverted structure and its application method |
-
2019
- 2019-06-21 CN CN201910544231.1A patent/CN110170236B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2094540U (en) * | 1991-06-18 | 1992-01-29 | 张艳秋 | Speed controller for lifting structure |
| JPH08224003A (en) * | 1995-11-20 | 1996-09-03 | Iseki & Co Ltd | Hydraulic pressure regulating device of tractor |
| CN101169663A (en) * | 2007-11-02 | 2008-04-30 | 上海市基础工程公司 | Pneumatic caisson air pressure automatic regulation system |
| CN205804437U (en) * | 2016-06-30 | 2016-12-14 | 杭州敦固建筑特种工程有限公司 | A kind of dystopy that synchronizes blocks lifting inclination-correcting device |
| CN205874994U (en) * | 2016-07-08 | 2017-01-11 | 江苏燕宁建设工程有限公司 | A multi -point synchronization hydraulic pressure jacking system for bridge beam supports changes |
| CN106836836A (en) * | 2017-01-23 | 2017-06-13 | 山东国舜建设集团有限公司 | A kind of Flue Gas Desulphurization for Coal-burning Power Plant tower transforms secondary hydraulic lifting installation method |
| CN108775081A (en) * | 2018-08-11 | 2018-11-09 | 中国电建集团贵州电力设计研究院有限公司 | A kind of hydraulic lifting inverted structure and its application method |
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|---|---|
| CN110170236B (en) | 2022-02-11 |
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