CN204127565U - Underground Steam Pipeline with Pipe-in-pipe Structure thermal insulation layer repairing device - Google Patents
Underground Steam Pipeline with Pipe-in-pipe Structure thermal insulation layer repairing device Download PDFInfo
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- CN204127565U CN204127565U CN201420521606.5U CN201420521606U CN204127565U CN 204127565 U CN204127565 U CN 204127565U CN 201420521606 U CN201420521606 U CN 201420521606U CN 204127565 U CN204127565 U CN 204127565U
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- pipe
- insulation layer
- thermal insulation
- tube
- venturi tube
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Abstract
The utility model relates to a kind of underground Steam Pipeline with Pipe-in-pipe Structure thermal insulation layer repairing device.For solving the technical problem existed when current underground Steam Pipeline with Pipe-in-pipe Structure thermal insulation layer is filled, the repairing device that the utility model provides comprises a Venturi tube, it is characterized in that: the intake section of described Venturi tube connects the blanking chamber of a sealing, high pressure air blowing pipe is provided with in blanking chamber, one end of air feeding tube extend into the entrance part of Venturi tube, and the other end stretches out blanking chamber and is connected with air compressor through high-pressure air hose; Blanking chamber extenal fixation powder funnel, the bottom opening of powder funnel is through by the inner chamber in material blanking tube and blanking chamber; This device also comprises an outlet pipe, and after the material feeding mouth of the diffusion end of Venturi tube and Steam Pipeline with Pipe-in-pipe Structure thermal insulation layer is fixing, its outlet pipe is positioned at pipeline far-end and through with thermal insulation layer chamber.This apparatus structure is reasonable, easy and simple to handle, can fill reach splendid technique effect to pipe insulation material.
Description
technical field:
The present invention relates to a kind of device to repairing at underground heat hydraulic piping, is the device repaired underground steel-sleeve steel steam pipe thermal insulation layer specifically.
background technique:
Thermoelectricity plant needs auxiliary construction heat supply network, and by the requirement of urban construction view, large portion BN Backbone Network is required underground, and therefore, boundary is in this case, and heating power steel sleeve steel process pipe starts to popularize in heat supply network construction comprehensively.So-called heating power steel sleeve steel process duct refers at steam tube peripheral hardware one outer sleeve, fill insulant material in the cavity between steam tube and outer sleeve.Find in actual applications, when revealing appears in pipeline, need to find out leak point and cut outer sleeve, peel off thermal insulation layer mending-leakage process is carried out to steam tube.During owing to occurring revealing when pipe network, its leak point can not accurately be determined, needs to carry out investigation leak detection, till finding leak point to whole piece pipeline when searching leak point.And what cause permanent crux is maintenance complete appearance serious heat waste sequelae, because pipe interior thermal insulation layer is all rock wool material, rock wool leaked high pressure, high-temperature water boiling, thermal insulating material is seriously damaged, and thermal insulation layer large portion disappearance, inefficacy, make pipeline lose heat insulation effect, cause huge heat waste, according to field survey, the steel jacket pipe outer sleeve temperature without insulation can reach 100-120 degree, strengthens pipeline thermal loss.In recent years, the insulation failure defect caused due to leakage conductance in steel jacket pipe affects heat supply network economical operation always.And if carry out insulation and recover construction, need to carry out dig on a wide area, cut open by pipeline outer sleeve, then carry out fill insulant material and recover insulation, engineering work load is huge, and needs region road, greening, Netcom's facility etc. on the ground of extensive damage heat supply network process.
Summary of the invention
Cause pipeline to lose the technical problem of heat insulation effect for solving current underground Steam Pipeline with Pipe-in-pipe Structure due to the thermal insulation layer disappearance revealed and cause in mending-leakage repair process, the utility model provides a kind of to be reduced
The underground Steam Pipeline with Pipe-in-pipe Structure thermal insulation layer repairing device of pipe loss, convenient construction.
For reaching above-mentioned technical purpose, the technical solution adopted in the utility model is: underground Steam Pipeline with Pipe-in-pipe Structure thermal insulation layer repairing device, this device comprises a Venturi tube, it is characterized in that: the intake section of described Venturi tube connects the blanking chamber of a sealing, high pressure air blowing pipe is provided with in blanking chamber, one end of air feeding tube extend into the entrance part of Venturi tube, and the other end stretches out blanking chamber and is connected with air compressor through high-pressure air hose; Blanking chamber extenal fixation powder funnel, the bottom opening of powder funnel is through by the inner chamber in material blanking tube and blanking chamber; This device also comprises an outlet pipe, and after the material feeding mouth of the diffusion end of Venturi tube and Steam Pipeline with Pipe-in-pipe Structure thermal insulation layer is fixing, its outlet pipe is positioned at pipeline far-end and through with thermal insulation layer chamber.
The diffusion end of described Venturi tube is also provided with a pipeline fixed tube, and diffusion end is fixed by flange plate with pipeline fixed tube.
Described powder funnel is also provided with the funnel plate for closing funnel material feeding mouth.
The beneficial effects of the utility model are: this device is by adopting high-pressure spray technology, breach the susceptible to plugging technical barrier that thermal insulating material long distance delivery brings, can in-site installation, construction fast steel-sleeve steel steam pipe thermal insulation layer is repaired, without the need to carrying out dig on a wide area, decrease engineering work load, the infringement of ground, the region of heat supply network process road, greening, Netcom's facility etc. can be reduced to inferior limit.
Accompanying drawing explanation
Accompanying drawing is that the utility model uses schematic diagram.
In figure, 1, steam tube, 2, outer sleeve, 3, thermal insulation layer, 4, Venturi tube, 5, blanking chamber, 6, air feeding tube, 7, high-pressure air hose, 8, air compressor, 9, material blanking tube, 10, powder funnel, 11, funnel plate, 12, pipeline fixed tube, 13, flange plate, 14, outlet pipe.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
As shown in drawings, the steel-sleeve steel steam pipe of current use comprises steam tube 1, at steam tube 1 peripheral hardware one outer sleeve 2, in cavity between steam tube 1 and outer sleeve 2, fill insulant material forms thermal insulation layer 3, when steam line 1 occur reveal, search leak point and cutting outer sleeve 2 carry out in the process of mending-leakage, the high pressure that the thermal insulating material in thermal insulation layer is leaked, high-temperature water boiling, thermal insulating material disappearance is serious, makes pipeline lose heat insulation effect.
As shown in drawings, the device that underground steel-sleeve steel steam pipe thermal insulation layer is repaired that the utility model provides, this device comprises a Venturi tube 4, the blanking chamber 5 of a sealing is connected at the intake section of Venturi tube 4, high pressure air blowing pipe 6 is provided with in blanking chamber 5, one end of air feeding tube 6 extend into the entrance part of Venturi tube 4, and the other end stretches out blanking chamber 5 and is connected with air compressor 8 through high-pressure air hose 7; At blanking chamber 5 extenal fixation powder funnel 10, the bottom opening of powder funnel 10 is through with the inner chamber in blanking chamber 5 by material blanking tube 9.
As shown in drawings, this device also comprises an outlet pipe 14, and after the material feeding mouth of the diffusion end of Venturi tube and Steam Pipeline with Pipe-in-pipe Structure thermal insulation layer is fixing, its outlet pipe 14 is positioned at pipeline far-end and through with thermal insulation layer chamber.
During concrete use, first will need the insulation pipe of fill insulant material on outer sleeve 2, excavate place's material feeding mouth, the diffusion end of Venturi tube 4 in this device is welded on the material feeding mouth place of outer sleeve, for this device of Long-Time Service, prevent the diffusion end of Venturi tube from being destroyed, when practical operation, as shown in drawings, a pipeline fixed tube 12 is connected by flange plate 13 at the diffusion end of Venturi tube, pipeline fixed tube 12 is directly welded with the material feeding mouth of outer sleeve 2, during welding, require that the axis of Venturi tube and pipeline fixed tube and outer sleeve axis shape form an angle, its angle angle is not more than 30 °, thermal insulation layer is entered smoothly to enable thermal insulating material.
As shown in drawings, excavating welding outlet pipe 14 apart from outer sleeve material feeding mouth 50-80 rice position, outlet pipe 14 is through with thermal insulation layer chamber, for draining the air-flow entering pipeline, be convenient to insulation material flow in pipeline simultaneously, make thermal insulating material in pipeline, form the effect of wind drift snow.
As shown in drawings, the thermal insulating material of this device conveying is perlite particle, after device is connected according to above-mentioned requirements and pipeline, perlite particle is added in powder funnel 10, particle enters in blanking chamber 5 through material blanking tube 9, start air compressor 8, the high-pressure air come by air compressor, enter Venturi tube through air feeding tube 6 and form high pressure draught district, namely dispelled when powder enters Venturi tube, after this pipe insulating layer is sent into by high velocity air, pressurized gas are discharged by outlet pipe 14 in thermal insulation layer chamber, material constantly adds from funnel, then illustrate that the insulation of this segment pipe is filled complete when outlet pipe 14 has powder particles to discharge.
As shown in drawings, for preventing the heat insulating material filling in powder funnel 10 to be full of the blowback of rear generation material, powder funnel 10 is provided with the funnel plate 11 for closing funnel material feeding mouth.
In operation, require that air compressor air storage tank is not less than 0.5-1 cube, construction section 50-80 rice, exhaust caliber DN50-80, is beneficial to good exhaust, improves powder carry effect.
Claims (3)
1. underground Steam Pipeline with Pipe-in-pipe Structure thermal insulation layer repairing device, this device comprises a Venturi tube, it is characterized in that: the intake section of described Venturi tube connects the blanking chamber of a sealing, high pressure air blowing pipe is provided with in blanking chamber, one end of air feeding tube extend into the entrance part of Venturi tube, and the other end stretches out blanking chamber and is connected with air compressor through high-pressure air hose; Blanking chamber extenal fixation powder funnel, the bottom opening of powder funnel is through by the inner chamber in material blanking tube and blanking chamber; This device also comprises an outlet pipe, and after the material feeding mouth of the diffusion end of Venturi tube and Steam Pipeline with Pipe-in-pipe Structure thermal insulation layer is fixing, its outlet pipe is positioned at pipeline far-end and through with thermal insulation layer chamber.
2. underground according to claim 1 Steam Pipeline with Pipe-in-pipe Structure thermal insulation layer repairing device, is characterized in that: the diffusion end of described Venturi tube is also provided with a pipeline fixed tube, and diffusion end is fixed by flange plate with pipeline fixed tube.
3. underground according to claim 1 Steam Pipeline with Pipe-in-pipe Structure thermal insulation layer repairing device, is characterized in that: described powder funnel is also provided with the funnel plate for closing funnel material feeding mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420521606.5U CN204127565U (en) | 2014-09-12 | 2014-09-12 | Underground Steam Pipeline with Pipe-in-pipe Structure thermal insulation layer repairing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420521606.5U CN204127565U (en) | 2014-09-12 | 2014-09-12 | Underground Steam Pipeline with Pipe-in-pipe Structure thermal insulation layer repairing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204127565U true CN204127565U (en) | 2015-01-28 |
Family
ID=52383921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420521606.5U Expired - Fee Related CN204127565U (en) | 2014-09-12 | 2014-09-12 | Underground Steam Pipeline with Pipe-in-pipe Structure thermal insulation layer repairing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204127565U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266036A (en) * | 2014-09-12 | 2015-01-07 | 硕良勋 | Underground steel bushing steel steam pipeline insulating layer restoring device and method thereof |
| CN110285286A (en) * | 2019-06-27 | 2019-09-27 | 湖南达道新能源开发有限公司 | A kind of repair apparatus and method of geothermal heat pipeline rapid cooling |
-
2014
- 2014-09-12 CN CN201420521606.5U patent/CN204127565U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266036A (en) * | 2014-09-12 | 2015-01-07 | 硕良勋 | Underground steel bushing steel steam pipeline insulating layer restoring device and method thereof |
| CN110285286A (en) * | 2019-06-27 | 2019-09-27 | 湖南达道新能源开发有限公司 | A kind of repair apparatus and method of geothermal heat pipeline rapid cooling |
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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: 20150128 Termination date: 20150912 |
|
| EXPY | Termination of patent right or utility model |