CN101169663B - Pneumatic caisson air pressure automatic regulation system - Google Patents
Pneumatic caisson air pressure automatic regulation system Download PDFInfo
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- CN101169663B CN101169663B CN2007100477699A CN200710047769A CN101169663B CN 101169663 B CN101169663 B CN 101169663B CN 2007100477699 A CN2007100477699 A CN 2007100477699A CN 200710047769 A CN200710047769 A CN 200710047769A CN 101169663 B CN101169663 B CN 101169663B
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Abstract
The invention relates to an automatic air-pressure regulation system for a pneumatic caisson. A controller consists of a measuring circuit, a voltage converter, a comparer, a driver and an A/D converter, wherein, a pressure transmitter outputs a signal of pressure value in the working chamber of the caisson to the measuring circuit; the signal is then sent to the comparer via the voltage converterto be compared with an upper and a lower limit pressure values set in the comparer. When the pressure value in the working chamber of the caisson is decreased below the set lower limit, a starting signal is transmitted to the driver which then sends out a driving signal to a lower-limit relay so that an electromagnetic air-pressure valve automatically starts an air pump to supply air into the working chamber of the caisson; when the air pressure in the working chamber of the caisson increases above the upper limit, the driver sends out a driving signal to an upper-limit relay so that the electromagnetic air-pressure valve automatically shuts down the air pump and stops the air supply for the working chamber. By adopting the system of the invention, the cumbersome operation of the purelymanual air-pressure regulation is avoided and the construction process is simplified, thereby effectively improving the working efficiency and lowering the construction cost.
Description
Technical field
The present invention relates to the pneumatic caisson in a kind of building operation, especially a kind of control system that is used for operating room, pneumatic caisson bottom internal gas pressure.
Background technology
In the pneumatic caisson construction, the control of operating room, bottom internal gas pressure is very important.In constantly sinking process of caisson, operating room's internal gas pressure needs to balance each other with extraneous water pressure all the time, therefore operating room's air pressure must be maintained always a certain relatively stable pressure in certain sinking stage, and along with the increase of submergence depth is heightened operating room's atmospheric pressure value stage by stage.Owing in the caisson work progress, escape because of various construction factor influences can cause operating room's inner high voltage gas, operating room's pressure is reduced, therefore need constantly can be stabilized in a relatively stable scope to keep its atmospheric pressure value to carrying out tonifying Qi in the operating room.This process is then very loaded down with trivial details as relying on pure manual adjustment, working procedure complexity, inefficiency.
Summary of the invention
Technical matters to be solved by this invention provides a kind of pressure automatic adjust system that is used for pneumatic caisson, and this system can avoid pure craft to carry out the loaded down with trivial details operation of air pressure adjustment, and working procedure is simple, and can effectively increase work efficiency, and saves construction cost.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of pressure automatic adjust system that is used for pneumatic caisson, comprise controller, pressure unit, on, the lower limit relay, the electromagnetism air pressure valve, be characterized in: controller is by metering circuit, voltage changer, comparer, driver, A/D converter is formed, wherein: on pressure unit output air working chamber internal pressure value signal is given metering circuit and sent in the air working chamber of setting in comparer and the comparer behind voltage changer, the threshold pression value compares, when air working chamber internal pressure value is reduced to the air working chamber threshold pression value of setting when following, the output initiating signal is given driver, and driver sends drive signal to the lower limit relay; Make the electromagnetism air pressure valve open air compressor machine automatically; Air compressor machine is air feed in air working chamber; Arrive after the air working chamber upper limit force value of setting when the air working chamber pressure rises, driver sends drive signal to upper limit relay, makes the electromagnetism air pressure valve close air compressor machine automatically, and air compressor machine stops air feed in the operating room.
The pressure automatic adjust system that is used for pneumatic caisson also comprises Switching Power Supply and display, upper and lower visual alarm.
Switching Power Supply connects the upper and lower limit relay, and the power supply that is used for the upper and lower limit relay drives; Display links to each other with the A/D converter that connects metering circuit, is used to show the instant changing value of air working chamber internal pressure value.
The invention has the beneficial effects as follows: adopt this system can avoid pure craft to carry out the loaded down with trivial details operation of air pressure adjustment, working procedure is simple, has effectively improved work efficiency, has saved construction cost.
Description of drawings
Fig. 1 is a pneumatic caisson automatic air pressure control system schematic diagram.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
As shown in Figure 1, the pressure automatic adjust system that is used for pneumatic caisson of the present invention comprises controller, pressure unit, upper and lower limit relay, electromagnetism air pressure valve, Switching Power Supply and display.
Controller is by metering circuit, voltage changer, comparer, driver, A/D converter is formed, and wherein: pressure unit output air working chamber internal pressure value signal is given metering circuit and sent into behind voltage changer that the upper and lower limit force value compares in the air working chamber of setting in comparer and the comparer, when air working chamber internal pressure value is reduced to the air working chamber threshold pression value of setting when following, the output initiating signal is given driver, and driver sends drive signal to the lower limit relay; Make the electromagnetism air pressure valve open air compressor machine automatically; Air compressor machine is air feed in air working chamber; Arrive after the air working chamber upper limit force value of setting when the air working chamber pressure rises, driver sends drive signal to upper limit relay, makes the electromagnetism air pressure valve close air compressor machine automatically, and air compressor machine stops air feed in the operating room.
The pressure automatic adjust system that is used for pneumatic caisson also comprises Switching Power Supply and display, upper and lower visual alarm.
Switching Power Supply connects the upper and lower limit relay, and the power supply that is used for the upper and lower limit relay drives; Display links to each other with the A/D converter that connects metering circuit, is used to show the instant changing value of air working chamber internal pressure value.
Control procedure of the present invention:
This process is through improving the back by setting water level observation well at the construction field (site) understanding on-the-spot underground water table height, and in conjunction with parameters such as the caisson sinking degree of depth, as instructing the important evidence of adjusting operating room's internal gas pressure.Size by dividing the construction stage to set operating room's internal gas pressure during construction, and rational bound domain of walker is set, take pneumatic caisson varitrol of the present invention subsequently.When operating room's internal pressure is reduced to given lower limit when following, the pressure unit output signal makes this system open air compressor machine air feed in the operating room automatically; When operating room's pressure rises after the upper limit, the pressure transducer output signal makes this system close air compressor machine automatically and stops air feed in the operating room.When caisson further sinks, can reset operating room's air pressure size and bound scope according to correlation parameter.
For guaranteeing safety, also be provided with manual operation system in this system simultaneously, carry out the pressure adjusting in case varitrol, then can switch to manual system immediately because of the temporary derangement cisco unity malfunction.
The employing of this system has avoided pure craft to carry out the loaded down with trivial details operation of air pressure adjustment, and working procedure is simple, has effectively improved work efficiency, has saved construction cost.
Claims (4)
1. pressure automatic adjust system that is used for pneumatic caisson, comprise controller, pressure unit, on, the lower limit relay, the electromagnetism air pressure valve, it is characterized in that, described controller is by metering circuit, voltage changer, comparer, driver, A/D converter is formed, wherein: on pressure unit output air working chamber internal pressure value signal is given metering circuit and sent in the air working chamber of setting in comparer and the comparer behind voltage changer, the threshold pression value compares, when air working chamber internal pressure value is reduced to the air working chamber threshold pression value of setting when following, the output initiating signal is given driver, and driver sends drive signal to the lower limit relay; Make the electromagnetism air pressure valve open air compressor machine automatically; Air compressor machine is air feed in air working chamber; Arrive after the air working chamber upper limit force value of setting when the air working chamber pressure rises, driver sends drive signal to upper limit relay, makes the electromagnetism air pressure valve close air compressor machine automatically, and air compressor machine stops air feed in the operating room.
2. the pressure automatic adjust system that is used for pneumatic caisson according to claim 1 is characterized in that, the described pressure automatic adjust system that is used for pneumatic caisson also comprises Switching Power Supply, display, upper and lower visual alarm.
3. the pressure automatic adjust system that is used for pneumatic caisson according to claim 2 is characterized in that, described Switching Power Supply connects the upper and lower limit relay, and the power supply that is used for the upper and lower limit relay drives.
4. the pressure automatic adjust system that is used for pneumatic caisson according to claim 2 is characterized in that, described display links to each other with the A/D converter that connects metering circuit, is used to show the instant changing value of air working chamber internal pressure value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100477699A CN101169663B (en) | 2007-11-02 | 2007-11-02 | Pneumatic caisson air pressure automatic regulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100477699A CN101169663B (en) | 2007-11-02 | 2007-11-02 | Pneumatic caisson air pressure automatic regulation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101169663A CN101169663A (en) | 2008-04-30 |
| CN101169663B true CN101169663B (en) | 2010-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007100477699A Active CN101169663B (en) | 2007-11-02 | 2007-11-02 | Pneumatic caisson air pressure automatic regulation system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101624831B (en) * | 2009-07-28 | 2011-07-06 | 中国一冶集团有限公司 | Open caisson capable of warning in construction and early warning method thereof |
| CN102953395A (en) * | 2011-08-17 | 2013-03-06 | 江苏道达海上风电工程科技有限公司 | Adaptive-floating balance system for complex bucket foundation |
| CN104635777A (en) * | 2014-12-30 | 2015-05-20 | 河南西瑞医疗电子技术有限公司 | Precise pneumatic control method for voice coil motor |
| CN107783562A (en) * | 2017-11-09 | 2018-03-09 | 太原理工大学 | A kind of automaton for preventing that gas pressure from transfiniting |
| CN110170236B (en) * | 2019-06-21 | 2022-02-11 | 杭州路成环保科技有限公司 | Spray absorption tower and construction method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1285442A (en) * | 2000-09-29 | 2001-02-28 | 大港油田集团有限责任公司 | Method and apparatus for controlling raise and subsidence of barrel-shape negative-pressure foundation moveable platform |
| CN1730842A (en) * | 2005-09-07 | 2006-02-08 | 天津大学 | Maritime air float hauling and positioning sinking mounting method for soft-foundation box-cylinder type infrastructure |
| CN1932160A (en) * | 2005-11-27 | 2007-03-21 | 苗德政 | Component assembling construction auxiliary apparatus in hydraulic engineering and using method thereof |
-
2007
- 2007-11-02 CN CN2007100477699A patent/CN101169663B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1285442A (en) * | 2000-09-29 | 2001-02-28 | 大港油田集团有限责任公司 | Method and apparatus for controlling raise and subsidence of barrel-shape negative-pressure foundation moveable platform |
| CN1730842A (en) * | 2005-09-07 | 2006-02-08 | 天津大学 | Maritime air float hauling and positioning sinking mounting method for soft-foundation box-cylinder type infrastructure |
| CN1932160A (en) * | 2005-11-27 | 2007-03-21 | 苗德政 | Component assembling construction auxiliary apparatus in hydraulic engineering and using method thereof |
Non-Patent Citations (2)
| Title |
|---|
| JP特开平8-253940A 1996.10.01 |
| JP特开平9－228381A 1997.09.02 |
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| CN101169663A (en) | 2008-04-30 |
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| C14 | Grant of patent or utility model | ||
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Owner name: SHANGHAI FOUNDATION ENGINEERING GROUP CO., LTD. Free format text: FORMER NAME: SHANGHAI FOUNDATION ENGINEERING CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 200433 Yangpu District, Shanghai Star Road, No. 231 Patentee after: Shanghai Foundation Engineering Group Co., Ltd. Address before: 200433 Yangpu District, Shanghai Star Road, No. 231 Patentee before: Shanghai Foundation Engineering Co., Ltd. |