CN211372599U - Drainage and pollution discharge integrated device for directly-buried steam pipeline - Google Patents

Abstract

The technical scheme of the utility model provides a drainage and pollution discharge integrated device for a direct-buried steam pipeline, two interfaces of a three-way pipeline are respectively connected with the steam pipeline, the rest interfaces are connected with the top end of a drainage pipe box, the bottom end of the drainage pipe box is connected with a pollution discharge pipe box, and the pollution discharge pipe box is connected with a valve piece through a control pipeline; the small civil engineering chamber is provided with a valve and a part of control pipeline connected with the valve, and the rest part of the control pipeline is directly buried in the soil. The device has the advantages that the elbow part in the existing pipeline is replaced by the three-way pipeline, the drainage pipe box and the reducing pipe, so that the collection purity of the pipe wall condensate water is increased. And the sewage discharge pipe box is additionally arranged to discharge the sewage in the steam pipeline, so that the sewage discharge function is increased compared with the traditional drainage well method, and meanwhile, the construction investment is saved. This neotype device is simple, economy, the efficient has solved the difficult problem that traditional construction difficult problem, blowdown difficult problem, soda were arranged altogether, has avoided the hidden danger of operation.

Description

Drainage and pollution discharge integrated device for directly-buried steam pipeline

Technical Field

The utility model relates to a steam conduit blowdown field especially relates to a direct-burried steam conduit drainage blowdown integrated device.

Background

With the deep development and progress of the concentrated energy supply project in recent years in China, the steam pipeline is directly buried and laid in the thermal project and the industrial park project of cities and towns for more and more applications. Compared with the traditional ground overhead laying mode, the direct-buried laying mode of the heat supply pipeline has obvious economic and social benefits: the direct-buried pipe network saves space compared with an overhead pipeline; the heat transfer speed in the soil is slow, and the heat loss is low; the construction period is short, and the occupied area is small; is convenient for planning cities and parks.

However, with the acceleration of urbanization and industrialization, more and more reconstruction projects and extension projects are provided, most projects cannot be adapted to the initial planning, the crossing of the projects with the existing highways, rivers, other professional buried pipelines and the existing structures occurs, the direct-buried steam pipeline of the dewatering well needs to be locally increased in buried depth (the height of the bottom of the pipeline is reduced) to avoid bypassing, so that sediments are easily accumulated at local low points to block the pipeline, the condensed water accumulation causes operation hidden troubles, and the service life of the pipeline is reduced.

The construction is carried out according to the construction method of the traditional drainage well (figure I), the buried depth of a direct-buried steam pipeline of the drainage well needs to be locally increased, so that the depth of a foundation pit of the drainage well is increased, various obstacles can be encountered during municipal pipeline construction after the depth of the foundation pit is increased, and the method is particularly prominent during construction in towns with dense personnel.

Specifically, when a plurality of directly buried steam pipelines need to pass through the existing highways, rivers, other special buried pipelines and existing structures, the drainage wells cannot be normally arranged due to insufficient field operation area and complex surrounding pipeline environment; or the cost is too high, the owner is reluctant to construct a drainage well, so that the flow is not smooth at the local low point of the pipeline in the later period, the pipeline vibrates and the service life is shortened.

According to the technical code of urban heating direct-buried steam pipeline CJJT 104-2014, a hydrophobic device is required to be arranged at a low point of the pipeline. According to the drainage well (diagram I) arranged in the traditional treatment mode, branch pipelines need to be arranged at local low points, and sand grains, pipeline inner wall corrosion residues and the like in the pipelines cannot be distributed after being gathered at the low points of a pipeline network during operation, so that the pipelines are blocked finally. The drainage wells are generally constructed according to national standard atlas (12N6 thermal engineering, pages 49-50), and the special-shaped structures can also be specifically designed by design units according to the field conditions. When the directly buried pipeline needs to be locally lowered when passing through a highway or a river and other structures, the drainage well needs to be simultaneously deepened to be below the lowest elevation of a pipe network, and the well depth is increased, so that the following defects can be caused:

1. the excavation area of a construction site is increased, the working face is enlarged, and the influence on municipal traffic or other pipelines, pipelines and building structure foundations is increased.

2. The construction cost of the dewatering well is greatly increased.

3. The depth is increased to be closer to or reach the underground water layer, and simultaneously, the waterproof requirement on the drainage well is increased because the well wall area of the pipe is increased.

The design of the drainage well has higher requirements, the technology is scientific and reasonable, the requirements of construction convenience and reasonable engineering cost are considered, and therefore, how to provide the drainage well which is low in cost and easy for pipeline construction and the related steam pipeline drainage and pollution discharge device becomes a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model provides a direct-burried steam conduit drainage blowdown integrated device for solve current drainage well excavation area when the construction big, construction cost high, operation face big, to municipal traffic or other pipelines, pipeline, building structures foundation construction influence big, and be close more or reach the groundwater layer behind the drainage well depth increase, because pipe well wall area increases simultaneously, so also can promote the problem to the waterproof requirement of drainage well.

In order to realize the above purpose, the utility model discloses technical scheme provides a direct-burried steam conduit drainage blowdown integrated device, include: the device comprises a three-way pipeline, a drainage pipe box, a blowdown pipe box, a steam pipeline, a valve, a control pipeline and a civil engineering chamber; two ports of the three-way pipeline are respectively connected with the steam pipeline, the rest ports are connected with the top end of the drainage pipe box, the bottom end of the drainage pipe box is connected with a blowdown pipe box, and the blowdown pipe box is connected with the valve piece through a control pipeline; the small civil engineering chamber is provided with a valve and a part of control pipeline connected with the valve, and the rest part of the control pipeline is directly buried in the soil.

Preferably, in the above technical solution, at a connection portion of the three-way pipe and the drainage pipe box, a diameter of the three-way pipe is smaller than a diameter of the drainage pipe box.

Preferably, the control pipeline includes a drainage control pipeline and a pollution discharge control pipeline.

Preferably, the valve member includes a drain valve, a blowdown valve and a steam trap.

Preferably, the drain tank is connected to the drain valve via a drain control line, and the steam trap is connected to the drain valve via a drain control line.

Preferably, as a preferred feature of the above technical solution, the blowdown header tank is connected to the blowdown valve via a blowdown control pipe.

Preferably, as a preferred option of the above technical solution, the bottom end of the blowdown pipe box is plugged by a blind flange and then the open hole is connected with a blowdown control pipeline of the control pipeline.

Preferably, as a preferred aspect of the above technical solution, the bottom end of the blowdown pipe box is connected to a blowdown control pipe of the control pipe through a reducer pipe.

Preferably, the drain pipe box is located above the drain pipe box, and a cushion is arranged at the joint of the drain pipe box and the drain pipe box.

The technical scheme of the utility model provides a drainage and pollution discharge integrated device for a direct-buried steam pipeline, two interfaces of a three-way pipeline are respectively connected with the steam pipeline, the rest interfaces are connected with the top end of a drainage pipe box, the bottom end of the drainage pipe box is connected with a pollution discharge pipe box, and the pollution discharge pipe box is connected with a valve piece through a control pipeline; the small civil engineering chamber is provided with a valve and a part of control pipeline connected with the valve, and the rest part of the control pipeline is directly buried in the soil.

The utility model has the advantages that through utilizing tee bend pipeline, drainage pipe box, reducing pipe to replace the elbow part in the current pipeline, the collection purity to the pipe wall comdenstion water is increaseed. And the sewage discharge pipe box is additionally arranged to discharge the sewage in the steam pipeline, so that the sewage discharge function is increased compared with the traditional drainage well method, and meanwhile, the construction investment is saved. This neotype device is simple, economy, the efficient has solved the difficult problem that traditional construction difficult problem, blowdown difficult problem, soda were arranged altogether, has avoided the hidden danger of operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required to be used in the description of the embodiments or the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a direct-buried dewatering well in the prior art.

Fig. 2 is a schematic structural view of the drainage and pollution discharge integrated device for a direct-buried steam pipeline provided by the utility model.

Fig. 3 is a partially enlarged schematic structural diagram of the structure of the integrated drainage and pollution discharge device of the direct-buried steam pipeline shown in fig. 2.

Fig. 4 is a partially enlarged schematic structural diagram ii of the structure of the integrated drainage and pollution discharge device of the direct-buried steam pipeline shown in fig. 2.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Now combine the description attached drawing to explain the utility model discloses technical scheme carries out the detailed description, as shown in fig. 2, fig. 2 is the utility model provides a direct-burried steam conduit drainage blowdown integrated device's structural schematic diagram, as shown in fig. 2, it includes: three-way pipeline 1, drain pipe case 2, blowdown pipe case 3, steam conduit 4, valve member, control tube way, civil engineering cell 6. Wherein, the valve member includes: a drain valve 7, a blowdown valve 8 and a steam trap 9. Wherein, the control duct includes: a drain control line 10 and a blowdown control line 11.

Specifically, as shown in fig. 2, the side surface and the upper end interface of the three-way pipeline 1 are respectively connected with the steam pipeline, and the lower end interface is connected with the top end of the drainage pipe box. The bottom end of the drainage pipe box is connected with a blowdown pipe box 3, and the blowdown pipe box 3 is connected with a blowdown valve 8 through a blowdown control pipeline 11; the small civil engineering chamber 6 is only provided with a valve and a part of control pipelines connected with the valve, and the rest part of the control pipelines are directly buried in the soil and connected with corresponding components.

Specifically, as shown in fig. 3, the drain tank 2 is connected to the drain valve 7 via a drain control pipe 10, and the steam trap 9 is connected to the drain valve 7 via the drain control pipe 10.

At the joint of the three-way pipeline 1 and the drain pipe box 2, the caliber of the three-way pipeline 1 is smaller than that of the drain pipe box 2. The drain pipe box 2 is positioned above the blowdown pipe box 3, and a buffer cushion is arranged at the joint of the drain pipe box and the blowdown pipe box.

The blowdown pipe box 3 is connected with the blowdown valve 8 through a blowdown control pipeline 11. Further, the bottom end of the blowdown pipe box 3 is plugged by a blind flange, then the hole is connected with a blowdown control pipeline 11 of the control pipeline, and the bottom end of the blowdown pipe box 3 can be connected with the blowdown control pipeline 11 of the control pipeline through a reducing pipe.

Through contrast with prior art with right the utility model discloses technical scheme explains:

compared with the prior art (fig. 1), the utility model (refer to fig. 4) replaces the elbow 5 of the prior art with the three-way pipeline 1, and the drainage pipe box 2 and the added drainage pipe box 3 are directly buried into the soil. Further, the drain tank 2 and the blowdown tank header 3 are not interchangeable in the up and down positions, and the drain pipe opening must be at the blowdown upper side for easy collection of condensate on the wall of the steam pipe 4 (the drain tank 2 is shown in phantom in fig. 4 as collected condensate). The size of the drainage pipe box 2 is not less than the aperture of the tee joint. One end of the bottom side of the blow-off pipe box 3 is plugged by a direct-buried blind flange, and then is provided with a hole to be connected with a pipeline, or can be connected with the pipeline after being reduced by a reducing pipe. As shown in fig. 4, the shadow part of the drainage pipe box 3 is collected dirt, the weight of the dirt is larger than that of the condensed water, when the steam in the steam pipeline 4 flows through the three-way pipeline 1, the condensed water collected in the steam by the drainage pipe box 2 is drained through the drainage control pipeline 10, and the dirt contained in the steam naturally settles to the drainage pipe box 3 and is drained through the drainage control pipeline 11.

The device is manufactured on site by adopting the steel sleeve steel direct-buried heat-insulation pipeline and the pipe fitting which are made of the same materials as the steam pipe network, and independent purchase is not needed. One end of the bottom side of the blow-off pipe box 3 is plugged by a direct-buried blind flange, and then the hole is connected with the pipeline, or the reducing of a reducing pipe can be adopted to be connected with the pipeline.

And as shown in figure 2, compared with the prior art, the drainage well of the device has the advantages that the well depth is obviously shortened, the obvious foundation pit depth is reduced, the obstacle met with the drainage well during municipal pipeline construction is avoided, and the related construction cost is saved.

The joint of the drainage pipe box 2 and the tee joint is fixed by welding, 100% radiographic inspection detection is required to be carried out on a welded junction, and the qualified standard is grade II. The tee pipeline 1 is a direct-buried heat-insulation prefabricated tee pipeline 1, and the wall thickness of the tee pipeline 1 is not smaller than that of the connected direct-buried steam pipeline 4.

Compared with the prior art, the drainage pipe box 2 and the blowdown pipe box 3 of this application are buried in the soil deeply, and the displacement volume that can avoid behind the pipeline expend with heat and contract with cold causes local welded junction to above-mentioned pipe box to destroy, and rivers are to the impulsive force of interface department production when setting up the blotter and slowing down the drainage through the both sides that two pipe boxes meet and bottom, and the blotter adopts flexible material such as polyether foam.

This device adopts steel bushing steel direct-burried insulating tube way, the pipe fitting with the same material of steam pipe network, avoids independent purchase, can purchase and transport to the scene with other pipelines in same batch, has shortened manpower financial resources. The device and other pipeline construction can be carried out synchronously, and the pressure test of the drainage and blowdown pipe box 3 can be synchronous with the pressure test of the direct-buried steam pipeline 4.

The technical scheme of the utility model provides a drainage and pollution discharge integrated device for a direct-buried steam pipeline, two interfaces of a three-way pipeline are respectively connected with the steam pipeline, the rest interfaces are connected with the top end of a drainage pipe box, the bottom end of the drainage pipe box is connected with a pollution discharge pipe box, and the pollution discharge pipe box is connected with a valve piece through a control pipeline; the small civil engineering chamber is provided with a valve and a part of control pipeline connected with the valve, and the rest part of the control pipeline is directly buried in the soil.

The utility model has the advantages that through utilizing tee bend pipeline, drainage pipe box, reducing pipe to replace the elbow part in the current pipeline, the collection purity to the pipe wall comdenstion water is increaseed. And the sewage discharge pipe box is additionally arranged to discharge the sewage in the steam pipeline, so that the sewage discharge function is increased compared with the traditional drainage well method, and meanwhile, the construction investment is saved. This neotype device is simple, economy, the efficient has solved the difficult problem that traditional construction difficult problem, blowdown difficult problem, soda were arranged altogether, has avoided the hidden danger of operation.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (9)

1. The utility model provides a direct-burried steam conduit drainage blowdown integrated device which characterized in that, it includes: a three-way pipeline, a drainage pipe box, a blowdown pipe box, a steam pipeline, a valve, a control pipeline and a civil engineering chamber,

two connectors of the three-way pipeline are respectively connected with the steam pipeline, the rest connectors are connected with the top end of the drainage pipe box, the bottom end of the drainage pipe box is connected with the blowdown pipe box, and the blowdown pipe box is connected with the valve piece through the control pipeline;

the civil engineering cell is provided with the valve and a part of the control pipeline connected with the valve, and the rest part of the control pipeline is directly buried in the soil.

2. The integrated drainage and blowdown device for a direct buried steam pipeline as claimed in claim 1, wherein the aperture of the three-way pipeline is smaller than that of the drainage pipe box at the joint of the three-way pipeline and the drainage pipe box.

3. The integrated drain and drain assembly of claim 1, wherein the control conduit comprises a drain control conduit and a drain control conduit.

4. The integrated drain and drain assembly of claim 3, wherein the valve comprises a drain valve, and a steam trap.

5. The integrated drainage and pollution discharge device for a directly buried steam pipeline according to claim 4, wherein the drainage pipe box is connected with the drainage valve through the drainage control pipeline, and the steam trap (9) is connected with the drainage valve through the drainage control pipeline.

6. The integrated drainage and blowdown device for a direct buried steam pipeline according to claim 4, wherein the blowdown header tank and the blowdown valve are connected through the blowdown control pipeline.

7. The integrated drainage and blowdown device for the direct-buried steam pipeline according to claim 6, wherein the bottom end of the blowdown pipe box is plugged by a blind flange, and then an opening is connected with a blowdown control pipeline of the control pipeline.

8. The integrated drainage and blowdown device for a direct-buried steam pipeline according to claim 6, wherein the bottom end of the blowdown pipe box is connected with a blowdown control pipeline of the control pipeline through a reducing pipe.

9. The integrated drainage and blowdown device for a direct buried steam pipeline as claimed in claim 1, wherein the drainage pipe box is located above the blowdown pipe box, and a cushion pad is provided at the junction of the drainage pipe box and the blowdown pipe box.

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