CN201531019U - Energy-saving type split vacuum preloading jet device - Google Patents
Energy-saving type split vacuum preloading jet device Download PDFInfo
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- CN201531019U CN201531019U CN2009202208456U CN200920220845U CN201531019U CN 201531019 U CN201531019 U CN 201531019U CN 2009202208456 U CN2009202208456 U CN 2009202208456U CN 200920220845 U CN200920220845 U CN 200920220845U CN 201531019 U CN201531019 U CN 201531019U
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Abstract
The utility model provides an energy-saving type split vacuum preloading jet device, which comprises a submersible pump and a jet tank containing an ejector. An external flange connector at one end of the submersible pump is connected with a double-side flange external connector via a pipeline, the double-side flange external connector is welded on the tank, a water inlet flange connector of the ejector is communicated with a double-side flange internal connector which is connected to the tank, a rear cavity flange connector of the ejector is connected with one end of a flexible pipe, and the other end of the flexible pipe is connected with a film outlet device. The energy-saving type split vacuum preloading jet device has the advantages that the jet device utilizes a form of separating a pump body with the jet tank to replace the original integral jet device, and is simple in structure, low in integral energy consumption and convenient for installation and maintenance. Components of the jet system which are all made of glass instead of steel sections are light in weight and free of maintenance and resist corrosion, thereby increasing utilization frequency of equipment. The jet device is adaptable to underconsolidated soft soil foundation stabilization engineering and port stock yards, airport site roads, road foundations, industrial and civil construction foundation treatment engineering utilizing large-area soft soil foundation stabilization.
Description
Technical field
The utility model belongs to a kind of technology that vacuumizes in the reinforced soft soil ground construction, particularly a kind of energy-saving split type vacuum preloading fluidic device.
Background technology
The technology of vacuumizing in the reinforced soft soil ground construction is quite important.The vacuum preloading fluidic device that uses the at present structurally pump housing and jet case is integral body, and the submersible pump body of this fluidic device is built-in, and it directly is vertically placed in the jet case.The connected mode of submersible pump body and ejector is the flange by gap bridge U shape steel tube two ends, realizes that the delivery port of submersible pump body is connected with the water inlet of ejector upper port.Gate valve in the non-return closed system and butterfly valve, gate valve and butterfly valve are installed in its entry, vapour end, and purpose is to stop the submersible pump body of fluidic device or ejector to hinder for some reason and the suck-back phenomenon that produces.
Therefore make troubles in transportation, install and maintenance; On material selection, fluidic system all adopts steel to make, and poor corrosion resistance and body weight are bigger.The vacuum preloading fluidic device comprehensive energy consumption outstanding behaviours of using at present is bigger in the submersible pump power consumption, directly influences the whole enterprise economic benefit.
Therefore be necessary above-mentioned vacuum preloading fluidic device is carried out technical research targetedly, the prefabricating load work efficiency that its every economic and technical norms had both been met design requirement, simple in structure again, operating mode stable, light energy-conservation, economic and practical.
Summary of the invention
For solving the problem that exists in the above-mentioned technology, the purpose of this utility model provides a kind of energy-saving split type vacuum preloading fluidic device, and that the operating mode in being beneficial to construct has more is stable, power consumption is lower, structure is simpler and corrosion-resistant, non-maintaining maintenance.
For achieving the above object, the technical solution adopted in the utility model provides a kind of energy-saving split type vacuum preloading fluidic device, this device includes the jet casing of submersible pump, built-in ejector, and wherein: self external flange interface of described submersible pump one end is connected with the Double-face flange external tapping that is welded in casing by pipeline; The water-in flange interface of described ejector self is connected with the Double-face flange inner joint that is connected in casing; The back cavity flange-interface of described ejector is connected with an end of flexible pipe, the other end of flexible pipe with go out film device and be connected.
Described ejector includes nozzle, and nozzle level successively is connected with playpipe and anemostat; The upper end of nozzle is connected with the water-in flange interface, and the side of nozzle is connected with the back cavity flange-interface by the back cavity trunnion.Described flexible pipe is soft steel wire rubber tube.
Effect of the present utility model is that the form that this fluidic device takes the pump housing to separate with the jet case substitutes former integral type fluidic device, and its advantage is a more advantages of simple of structure, be more convenient for transportation and installation and maintenance.The parts of fluidic system all substitute steel with glass fiber reinforced plastic, and its advantage is in light weight, and is corrosion-resistant, can non-maintainingly maintain, and the turnover of equipment utilizes number of times to increase.Energy-conservation improvement of this fluidic device and advantage thereof:
(1) design of jet pump and improvement:
Jet pump is a submersible pump, is the power source of fluidic system, at first jet pump is transformed.The model of the jet pump that uses before transforming is JQ8-7.5, and its important technological parameters is: power 7.5KW, 2 grades, flow 50m3/h, 13 meters of single-stage lift, rotating speed 2850r/min.
For guaranteeing that jet pump can form the above vacuum ability of 0.096Mpa, when jet pump is transformed, consideration must guarantee under the constant prerequisite of the motor speed of jet pump, guarantee lift more than 20 meters, carry out the design research and development of jet pump, through after repeatedly studying, debugging, according to technical requirements, develop 65Q20-22-4 type jet pump, its important technological parameters is: power 4KW, 1 grade, flow 20m3/h, 22 meters of single-stage lift, rotating speed 2850r/min, outlet diameter is 65mm.
(2) improvement of the jet rifle of fluidic system, nozzle, flap valve
Power at jet pump diminishes, and goes out port radius and reduces, and under the prerequisite that flow diminishes, for guaranteeing effective transmission of pump pressure, at first nozzle is improved.Through the empirical formula checking computations, change the jet expansion diameter into 20mm by 28mm, to guarantee the jet expansion flow velocity; Secondly the jet rifle is transformed.Determine that according to the matching relationship between nozzle and the jet rifle trunnion throat pipe diameter changes 32mm into by original 50mm, other size is carried out corresponding improvement according to throat pipe diameter by corresponding proportion; For reducing pump pressure loss during the course, newly-designed flap valve replaces the function of gate valve and butterfly valve, has reduced the flow process and the pressure loss once more.
The effect and the technical data of the energy-saving split type vacuum preloading fluidic device after the improvement:
(1) fluidic system self can form the above negative pressure value of 0.096Mpa;
(2) act on dead load vacuum under the film, continue to guarantee above negative pressure value in 90 days at 0.086MPa
(3) dead load is after 45 days, and under to the effect of ground dead load, the rate of settling still remains on 18 ~ 23mm/d, and the pore water pressure accumulation is dissipated in more than the 4Kpa, detects every technical indicator through the third party and all adheres to specification;
(4) when vacuum preloading vacuumizes, water, gas mixture that jet is gone out thoroughly separate, thereby make submersible pump improve 42.9% in the examination stage efficient of bleeding, and have improved the work efficiency ratio greatly;
(5) in the dead load 90 days, but energy efficient is more than 40%.
This fluidic device has advantage simple in structure, that comprehensive energy consumption is low, is to substitute third generation vacuum preloading fluidic device new generation product.This fluidic device is mainly used in the reinforced soft soil ground engineering of owing fixed, for the storage yard that adopts large-area soft ground to reinforce, road in airport, highway foundation, industry and civilian construction foundation treatment engineering, has more economical, more efficient, applicability widely.
Description of drawings
Fig. 1 is an energy-saving split type vacuum preloading fluidic device structural representation of the present utility model;
Fig. 2 is an energy-saving split type vacuum preloading fluidic device ejector structural representation of the present utility model.
1. submersible pump 2. jet casings 3. ejectors 4. nozzles
5. go out film device 6. flexible pipes 7. back cavity trunnions 8. back cavity flange-interfaces
9. water-in flange interface 10. Double-face flange interfaces 11. playpipes 12. anemostats
The specific embodiment
Reaching example in conjunction with the accompanying drawings is illustrated energy-saving split type vacuum preloading fluidic device structure of the present utility model.
Energy-saving split type vacuum preloading fluidic device of the present utility model, this apparatus structure includes the jet casing 2 of submersible pump 1, built-in ejector 3, and self external flange interface of submersible pump 1 one ends is connected with Double-face flange 10 external tappings that are welded in casing 2 by pipeline; The water-in flange interface 9 of described ejector 3 self is connected with Double-face flange 10 inner joints that are connected in casing 2; The back cavity flange-interface 8 of described ejector 3 is connected with an end of flexible pipe 6, and the other end of flexible pipe 6 is connected with out film device 5.
Described ejector 3 includes nozzle 4, and nozzle 4 level successively is connected with playpipe 11 and anemostat 12, and a side of nozzle 4 is connected with water-in flange interface 9, and the upside of nozzle 4 is connected with back cavity flange-interface 8 by back cavity trunnion 7.Described flexible pipe 6 is soft steel wire rubber tube.
Energy-saving split type vacuum preloading fluidic device of the present utility model is installed and be may further comprise the steps:
1. before installing, must lay the sand cushion of a bed thickness 40cm on the reinforced soft soil ground face of land according to designing requirement; Set plastic draining board, lay the horizontal drainage passage, lay under the film vacuum gauge head and go out film device, excavation press mold ditch is laid three-layer sealed film etc.
2. after film to be sealed is laid and finished, can implement the vacuum preloading fluidic device and install:
(1) respectively with jet pump, promptly submersible pump 1 and jet casing 2 are placed in and dig in advance in the pump nest of establishing, and retaining in the pump nest is to guarantee the jet pump cycling use of water;
(2) submersible pump 1 is connected with jet casing 2, and ejector 3 with go out film device 5 and be connected, all adopt soft steel wire rubber tube to connect;
(3) fluidic system is installed and to be comprised ejector 3 and flap valve, pressure vacuum gauge, is installed in the jet case 2;
(4) connect power supply debugging, fastening source of leaks, formally begin to vacuumize.
3. the operating principle of energy-saving split type vacuum preloading fluidic device of the present utility model:
(1) utilize jet pump as the continuous driving force source, after jet pump extracted water body, the ejector ante-chamber of flowing through via nozzle, anemostat, with the water body ejection, was finished a cyclic process.
(2) in cyclic process, the ejector ante-chamber because water body is flowed through, produce the water body of high flow rate by nozzle, cause the ejector back cavity to produce negative pressure, under the effect of negative pressure, following water, the vapour in the soil body face of land is connected soft steel wire rubber tube along going out film device with ejector, enter the water body of high flow rate, form water, vapour mixture, discharge via anemostat.
(3) vacuumize fluidic device periodic duty so repeatedly by vacuum preloading, make between the soil body and drainage channel, the bed course and form pressure reduction.Under this differential pressure action, the pore water in the soil body is constantly discharged by drainage channel, and pore water pressure decreases, effective stress increases, thereby makes the soil solidifying densification, obtains enough intensity.
Energy-saving split type vacuum preloading fluidic device of the present utility model, what first Application in 2005 is handled the I bid section in north, PORT OF TIANJIN three phase of basin ground, total about 802071m of ground stabilization processing area
2
In implementation process, this fluidic device operating mode is stable, reaches the re-set target value, and after ground stabilization was handled, the ground after the third party is to consolidation process carried out soil test, and its ground consolidation degree reaches 90%, and all other technical indicators all meet design requirement.
Identify by test, illustrate that the every technical performance of this fluidic device all is better than other like products.
After this in foundation treatment engineerings such as Huaneng Group, industrial occupancy, Harbor, Tianjin thermoelectricity, Tianjin energy thermoelectricity, blue star chemical industry, peace nine oil, promote the use of successively again, verified the superiority of this fluidic device again, and obtained effect preferably.
Claims (3)
1. energy-saving split type vacuum preloading fluidic device, this device includes the jet casing of submersible pump, built-in ejector, it is characterized in that: self external flange interface of described submersible pump (1) one end is connected with the Double-face flange that is welded in casing (2) (10) external tapping by pipeline; The water-in flange interface (9) of described ejector (3) self is connected with the Double-face flange that is connected in casing (2) (10) inner joint; The back cavity flange-interface (8) of described ejector (3) is connected with an end of flexible pipe (6), the other end of flexible pipe (6) with go out film device (5) and be connected.
2. energy-saving split type vacuum preloading fluidic device according to claim 1, it is characterized in that: described ejector (3) includes nozzle (4), and nozzle (4) level successively is connected with playpipe (11) and anemostat (12); The upper end of nozzle (4) is connected with water-in flange interface (9), and the side of nozzle (4) is connected with back cavity flange-interface (8) by back cavity trunnion (7).
3. energy-saving split type vacuum preloading fluidic device according to claim 1 is characterized in that: described flexible pipe (6) is soft steel wire rubber tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202208456U CN201531019U (en) | 2009-09-24 | 2009-09-24 | Energy-saving type split vacuum preloading jet device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202208456U CN201531019U (en) | 2009-09-24 | 2009-09-24 | Energy-saving type split vacuum preloading jet device |
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| CN201531019U true CN201531019U (en) | 2010-07-21 |
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| CN2009202208456U Expired - Fee Related CN201531019U (en) | 2009-09-24 | 2009-09-24 | Energy-saving type split vacuum preloading jet device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132503A (en) * | 2011-12-01 | 2013-06-05 | 上海市基础工程有限公司 | Membrane-through connecting device for vacuum pump and vacuum membrane drainage pipeline |
| CN103527519A (en) * | 2013-10-21 | 2014-01-22 | 舟山市恒威船舶配件有限公司 | Jetting device used for water pump |
| CN105757007A (en) * | 2014-07-31 | 2016-07-13 | 丁永新 | Jet vacuum pump using submersible pump |
| CN105840558A (en) * | 2014-07-31 | 2016-08-10 | 丁永新 | Working method of jet vacuum pump with submersible pump adjustable outfall pressure by adopting submersible pump |
| CN113216146A (en) * | 2021-05-19 | 2021-08-06 | 国强建设集团有限公司 | Vacuum preloading device and vacuum preloading method |
| CN113293751A (en) * | 2021-04-27 | 2021-08-24 | 中交广州航道局有限公司 | Vacuum preloading single-pump double-power water-gas separation device and using method thereof |
-
2009
- 2009-09-24 CN CN2009202208456U patent/CN201531019U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132503A (en) * | 2011-12-01 | 2013-06-05 | 上海市基础工程有限公司 | Membrane-through connecting device for vacuum pump and vacuum membrane drainage pipeline |
| CN103132503B (en) * | 2011-12-01 | 2015-09-02 | 上海市基础工程集团有限公司 | For the membrane linkage of vacuum pump and vacuum diaphragm drainage pipe |
| CN103527519A (en) * | 2013-10-21 | 2014-01-22 | 舟山市恒威船舶配件有限公司 | Jetting device used for water pump |
| CN105840558B (en) * | 2014-07-31 | 2018-11-02 | 罗帮亮 | Using the working method of the adjustable discharge pressure jet vacuum pump of immersible pump |
| CN105840558A (en) * | 2014-07-31 | 2016-08-10 | 丁永新 | Working method of jet vacuum pump with submersible pump adjustable outfall pressure by adopting submersible pump |
| CN105864112A (en) * | 2014-07-31 | 2016-08-17 | 丁永新 | Water-outlet-pressure-adjustable jet vacuum pump with submersible pump |
| CN105927597A (en) * | 2014-07-31 | 2016-09-07 | 丁永新 | Jet flow vacuum pump using submersible pump |
| CN105927598A (en) * | 2014-07-31 | 2016-09-07 | 丁永新 | Jet vacuum pump with submersible pump and adjustable water drainage pressure |
| CN105757007A (en) * | 2014-07-31 | 2016-07-13 | 丁永新 | Jet vacuum pump using submersible pump |
| CN105927598B (en) * | 2014-07-31 | 2018-11-09 | 何贞芳 | Using the adjustable discharge pressure jet vacuum pump of immersible pump |
| CN105864112B (en) * | 2014-07-31 | 2018-11-09 | 何贞芳 | A kind of adjustable jet vacuum pump of discharge pressure using immersible pump |
| CN105927597B (en) * | 2014-07-31 | 2018-11-09 | 罗帮亮 | A kind of jet vacuum pump using immersible pump |
| CN113293751A (en) * | 2021-04-27 | 2021-08-24 | 中交广州航道局有限公司 | Vacuum preloading single-pump double-power water-gas separation device and using method thereof |
| CN113293751B (en) * | 2021-04-27 | 2023-08-15 | 中交广州航道局有限公司 | Vacuum preloading single-pump double-power water-gas separation device and application method thereof |
| CN113216146A (en) * | 2021-05-19 | 2021-08-06 | 国强建设集团有限公司 | Vacuum preloading device and vacuum preloading method |
| CN113216146B (en) * | 2021-05-19 | 2022-08-02 | 国强建设集团有限公司 | Vacuum preloading device and vacuum preloading method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100721 Termination date: 20170924 |
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| CF01 | Termination of patent right due to non-payment of annual fee |