CN201568057U - Foam generating device for shield - Google Patents
Foam generating device for shield Download PDFInfo
- Publication number
- CN201568057U CN201568057U CN2009202142340U CN200920214234U CN201568057U CN 201568057 U CN201568057 U CN 201568057U CN 2009202142340 U CN2009202142340 U CN 2009202142340U CN 200920214234 U CN200920214234 U CN 200920214234U CN 201568057 U CN201568057 U CN 201568057U
- Authority
- CN
- China
- Prior art keywords
- foam
- foaming agent
- making apparatus
- shield structure
- compressed air
- Prior art date
- 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.)
- Expired - Lifetime
Links
- 239000006260 foam Substances 0.000 title claims abstract description 56
- 239000004088 foaming agent Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims description 5
- 238000005187 foaming Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 2
- 239000007921 spray Substances 0.000 abstract 2
- 239000002689 soil Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
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- Domestic Plumbing Installations (AREA)
- Nozzles (AREA)
Abstract
The utility model discloses a foam generating device for shield, comprising a foaming agent storage and proportioning tank, an air compressor, a foam generator and a spray head. The foam generator is provided with a foaming agent input port, a compressed air input port and a foam output port; the foaming agent storage and proportioning tank is connected with the foaming agent input port sequentially through a water pump, a valve and a liquid flow meter; the air compressor is connected with the compressed air input port sequentially through a pressure adjusting valve and a gas flow meter; and the foam output port is connected with the spray head. The foam generating device can supply a large amount of foam, has simple structure, simple and convenient operation, and can realize the controllability of foaming ratio of the foaming agent and the controllability of foam aperture.
Description
Technical field
The utility model relates to a kind of foam generating system, is specifically related to the generating means of required foam in a kind of earth pressure balanced shield, EPBS.
Background technology
Along with the rise of underground buildings such as each metropolis subway of China, tunnel, earth pressure balanced shield, EPBS is with its relatively low price, advantage such as be applicable to multiple geological conditions, have fewer environmental impacts and the main flow of this class underground building construction of becoming gradually.
Cut the soil body that gets off when the key of earth pressure balanced shield, EPBS construction is excavation and in pressure chamber, be adjusted to " plasticity flow regime ", thereby keep promptly that thereby certain fluidity avoids that the soil body produces the knot cake, gushs in pressure chamber, gushing water, gush phenomenon such as sand and cause stratum damage even surface subsidence accident, cause serious economy loss and social influence.For this " the plasticity flow regime " of conditioned soil volume property with the assurance soil body, thereby the control accident takes place, and the most frequently used method is injected foamed material exactly on the engineering in pressure chamber at present.
Inject foamed material and then must adopt foam-making apparatus.At present, required foam generating system mainly relies on import in the earth pressure balanced shield, EPBS.Because the cost costliness, domestic many mechanisms also begin research and development from major product, but at present domestic product have mostly that matching degree is poor, function is perfect inadequately, structure, operation shortcoming such as complexity and be difficult to promote comparatively.
The utility model content
Technical problem to be solved in the utility model provides a kind of shield structure foam-making apparatus, and it can provide a large amount of foams, and is simple in structure, easy and simple to handle, and can realize that the foaming agent expansion ratio is controlled and foam aperture is controlled.
In order to solve above technical problem, the utility model provides a kind of shield structure foam-making apparatus, comprising: the foaming agent storage is joined jar, air compressor, foam maker and shower nozzle; Described foam maker has foaming agent input port, compressed air input port and foam delivery outlet; Described foaming agent storage is joined jar and is connected with described foaming agent input port with fluid flowmeter by water pump, valve successively; Described air compressor is connected with described compressed air input port with gas flowmeter by pressure regulator valve successively; Described foam delivery outlet is connected with described shower nozzle.
Preferably, described foam maker is two-layer cylinder hollow structure, and interior cylinder is a compressed air channel, and outside cylinder is the foaming agent passage.
Further, described interior body diameter is 3～5cm, and the diameter difference of described outside cylinder and described interior cylinder is 0.5～2cm.
Further, be provided with a described compressed air input port bottom the described compressed air channel.
Further, described foaming agent channel bottom is arranged with two described foaming agent input ports.
Further, described compressed air channel sidewall is equipped with strainer.Preferably, described strainer is detachable.
Further, dividing plate is equipped with in described compressed air channel inside.
Preferably, described valve is a ball valve.
Preferably, described pressure regulator valve is a reducing valve.
Preferably, described shower nozzle is a del.
Further, the spout of described shower nozzle is a tabular.
The utlity model has following advantage:
1. whole foam-making apparatus and foaming flow process are comparatively simple.Compressed air and foaming agent all directly enter foam maker, and both mix the generation foam in foam maker.Foam maker simple in structure, whole device is easy and simple to handle.
2. the strainer of certain order number is housed on the foam maker, and through behind the strainer, gas dispersion is tiny air-flow, the feasible foam size homogeneous that produces, careful.And, by changing strainer, changing its order number, the size that can regulate foam aperture is to satisfy the demand of different field.
3. by regulating the ratio of compressed air air inflow and foam liquid measure, can regulate and control the expansion ratio of foam solution, to satisfy the foaming demand of different engineerings.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the concrete foam-making apparatus schematic diagram of the utility model;
Fig. 2 is the structural representation of foam maker of the present utility model.
Reference numeral among the figure is: 1, jar is joined in the foaming agent storage; 2, water pump; 3, valve; 4, fluid flowmeter; 5, air compressor; 6, pressure regulator valve; 7, gas flowmeter; 8, foam maker; 81, foaming agent input port; 82, compressed air input port; 83, strainer; 84, dividing plate; 85, foam efferent duct; 9, shower nozzle.
The specific embodiment
Below with reference to accompanying drawing shield structure of the present utility model is described in further detail with foam-making apparatus, is specially following embodiment:
As shown in Figure 1, shield structure foam-making apparatus of the present invention comprises: jar 1, water pump 2, valve 3, fluid flowmeter 4, air compressor 5, pressure regulator valve 6, gas flowmeter 7, foam maker 8 and shower nozzle 9 are joined in the foaming agent storage.The foaming agent storage is joined jar 1 and is connected with the foaming agent input port of foam maker 8 with fluid flowmeter 4 by water pump 2, valve 3 successively; Air compressor 5 is connected with the compressed air input port of foam maker 8 with gas flowmeter 7 by pressure regulator valve 6 successively; The foam delivery outlet of foam maker 8 is connected with shower nozzle 9.
Shield structure foam-making apparatus of the present utility model, its course of work is: a certain amount of foaming agent is poured into the foaming agent storage join jar 1, by water pump 2 foaming agent is joined extraction the jar 1 from the foaming agent storage, after adjusting flow, enter foam maker 8, simultaneously, the compressed air of air compressor 5 generations enters foam maker 8 from another pipeline.Foaming agent mixes in foam maker 8 with compressed air, produces foam, after shower nozzle 9 ejections.
As shown in Figure 2, in above-mentioned foam-making apparatus, foam maker 8 comprises foaming agent input port 81, compressed air input port 82, strainer 83, dividing plate 84 and foam efferent duct 85.Foam maker 8 is two-layer cylinder hollow structure, interior cylinder is a compressed air channel, strainer 83 and bottom base by upper portion side wall constitute, diameter is 3～5cm, be provided with a compressed air input port 82 in the compressed air channel bottom, the top connects the foam efferent duct, and dividing plate 84 is housed in the compressed air channel.Strainer 83 removable and replaceables, the order number can be adjusted as required.Outside cylinder is the foaming agent passage, and the diameter difference of itself and interior cylinder (compressed air channel) for making the foaming agent that enters even, is arranged with two foaming agent input ports in the foaming agent channel bottom at 0.5～2cm.The foaming agent input pipe is divided into two strands and links to each other with two foaming agent input ports before inserting the foaming agent generator.
In above-mentioned foam-making apparatus, the pressure regulator valve 6 in the gas piping is used to regulate compressed-air actuated pressure, and the valve 3 in the foaming agent pipeline is used to regulate the amount that foaming agent enters foam maker.The former is a reducing valve, realizes voltage stabilizing by the pressure between balanced gas and the spring diaphragm, and the latter is an ordinary ball valve, by the handle angle of changeover valve, changes valve inner via hole area and regulates the flow size.
In above-mentioned foam-making apparatus, keep certain pressure during for the ejection of foam in the end, shower nozzle 9 be designed to del, and spout is a tabular.
Claims (12)
1. a shield structure foam-making apparatus is characterized in that, comprising: the foaming agent storage is joined jar, air compressor, foam maker and shower nozzle;
Described foam maker has foaming agent input port, compressed air input port and foam delivery outlet;
Described foaming agent storage is joined jar and is connected with described foaming agent input port with fluid flowmeter by water pump, valve successively;
Described air compressor is connected with described compressed air input port with gas flowmeter by pressure regulator valve successively;
Described foam delivery outlet is connected with described shower nozzle.
2. shield structure foam-making apparatus as claimed in claim 1 is characterized in that, described foam maker is two-layer cylinder hollow structure, and interior cylinder is a compressed air channel, and outside cylinder is the foaming agent passage.
3. shield structure foam-making apparatus as claimed in claim 2 is characterized in that the interior body diameter of described foam maker is 3～5cm, and the diameter difference of outside cylinder and interior cylinder is 0.5～2cm.
4. shield structure foam-making apparatus as claimed in claim 2 is characterized in that, the compressed air channel bottom of described foam maker is provided with a described compressed air input port.
5. shield structure foam-making apparatus as claimed in claim 2 is characterized in that, the foaming agent channel bottom of described foam maker is arranged with two described foaming agent input ports.
6. shield structure foam-making apparatus as claimed in claim 2 is characterized in that the compressed air channel sidewall of described foam maker is equipped with strainer.
7. shield structure foam-making apparatus as claimed in claim 6 is characterized in that described strainer is detachable.
8. shield structure foam-making apparatus as claimed in claim 2 is characterized in that dividing plate is equipped with in the compressed air channel inside of described foam maker.
9. shield structure foam-making apparatus as claimed in claim 1 is characterized in that described valve is a ball valve.
10. shield structure foam-making apparatus as claimed in claim 1 is characterized in that described pressure regulator valve is a reducing valve.
11. shield structure foam-making apparatus as claimed in claim 1 is characterized in that described shower nozzle is a del.
12. shield structure foam-making apparatus as claimed in claim 11 is characterized in that the spout of described shower nozzle is a tabular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202142340U CN201568057U (en) | 2009-11-26 | 2009-11-26 | Foam generating device for shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202142340U CN201568057U (en) | 2009-11-26 | 2009-11-26 | Foam generating device for shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201568057U true CN201568057U (en) | 2010-09-01 |
Family
ID=42660344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202142340U Expired - Lifetime CN201568057U (en) | 2009-11-26 | 2009-11-26 | Foam generating device for shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201568057U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103223690A (en) * | 2013-04-15 | 2013-07-31 | 马鞍山十七冶工程科技有限责任公司 | Combined foam generator for light foam concrete foaming agent |
| CN103397887A (en) * | 2013-08-19 | 2013-11-20 | 中交天和机械设备制造有限公司 | Mud and foam adding system of shield tunneling machine |
| CN103575616A (en) * | 2013-11-18 | 2014-02-12 | 中南大学 | Foaming performance testing device for shield muck-improving foaming agent and using method of foaming performance testing device |
| CN104525065A (en) * | 2014-12-25 | 2015-04-22 | 西安交通大学医学院第二附属医院 | Bisphosphate microbial aerosol generator |
| EP2910733A1 (en) * | 2014-02-25 | 2015-08-26 | MC-Bauchemie Müller GmbH & Co. Chemische Fabriken | Foam generator for an earth pressure shield tunnel propulsion machine and method for conditioning removed soil material as a support medium for an earth pressure shield |
| CN113599753A (en) * | 2021-06-29 | 2021-11-05 | 煤炭科学技术研究院有限公司 | Foam generator for material proportioning experiment |
-
2009
- 2009-11-26 CN CN2009202142340U patent/CN201568057U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103223690A (en) * | 2013-04-15 | 2013-07-31 | 马鞍山十七冶工程科技有限责任公司 | Combined foam generator for light foam concrete foaming agent |
| CN103397887A (en) * | 2013-08-19 | 2013-11-20 | 中交天和机械设备制造有限公司 | Mud and foam adding system of shield tunneling machine |
| CN103397887B (en) * | 2013-08-19 | 2016-01-06 | 中交天和机械设备制造有限公司 | A kind of shield machine add mud, foaming system |
| CN103575616A (en) * | 2013-11-18 | 2014-02-12 | 中南大学 | Foaming performance testing device for shield muck-improving foaming agent and using method of foaming performance testing device |
| CN103575616B (en) * | 2013-11-18 | 2015-07-08 | 中南大学 | A foaming performance identification device for shield dregs improved foam agent and its application method |
| EP2910733A1 (en) * | 2014-02-25 | 2015-08-26 | MC-Bauchemie Müller GmbH & Co. Chemische Fabriken | Foam generator for an earth pressure shield tunnel propulsion machine and method for conditioning removed soil material as a support medium for an earth pressure shield |
| WO2015128235A3 (en) * | 2014-02-25 | 2015-11-26 | MC-BAUCHEMIE MÜLLER GmbH & Co. KG | Foam generator for an earth-pressure-balance-shield tunnel-boring machine and method for conditioning removed soil material as a supporting medium for an earth-pressure balance shield |
| EP2910733B1 (en) | 2014-02-25 | 2018-03-21 | MC-Bauchemie Müller GmbH & Co. KG Chemische Fabriken | Foam generator for an earth pressure shield tunnel propulsion machine and method for conditioning removed soil material as a support medium for an earth pressure shield |
| RU2681713C2 (en) * | 2014-02-25 | 2019-03-12 | Мк-Баухеми Мюллер Гмбх Унд Ко. Кг | Foam generator for earth pressure shield tunnel propulsion machine and method for conditioning removed soil material as support medium for earth pressure shield |
| CN104525065A (en) * | 2014-12-25 | 2015-04-22 | 西安交通大学医学院第二附属医院 | Bisphosphate microbial aerosol generator |
| CN113599753A (en) * | 2021-06-29 | 2021-11-05 | 煤炭科学技术研究院有限公司 | Foam generator for material proportioning experiment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100901 |
|
| CX01 | Expiry of patent term |