CN207568581U - For the boundling pipe device of underground coal gasification(UCG) and bundle pipes conveying device - Google Patents

Abstract

The utility model discloses a kind of for the boundling pipe device of underground coal gasification(UCG) and bundle pipes conveying device, the boundling pipe device includes at least two continuous pipes, further include fixing piece, the more continuous pipes are connected to side by side on the fixing piece, the axis of each continuous pipe is arranged in parallel, and has predetermined gap between the outer wall of continuous pipe described in arbitrary neighborhood two.It is provided by the utility model for the boundling pipe device of underground coal gasification(UCG) and bundle pipes conveying device, multiple continuous pipes are set up in parallel and have a predetermined gap between each other, so when the deformation that amplitude differs occurs for different continuous pipes, it reduces or even eliminates the influence to other continuous pipes, so as to reduce or even eliminate the negative effect of normal operation.

Description

For the boundling pipe device of underground coal gasification(UCG) and bundle pipes conveying device

Technical field

The utility model is related to coal underground mining technologies, and in particular to a kind of bundle pipes for underground coal gasification(UCG) fill It puts and bundle pipes conveying device.

Background technology

Coal underground gasification technology is that gasifying agent is directly injected into progress thermochemical study reaction in the primitive coalbed of underground Generate the technology of coal gas or synthesis gas.In order to complete the underground gasification of coal, need to spud in a series of connection earth's surfaces and coal seam Drilling or drilling of spudding in coal seam, such as into gas drilling hole, go out gas drilling hole gentleization channel.It needs to convey difference by drilling The substance of type or a series of equipment of installation, such as convey different types of gasifying agent：Air-oxygen, oxygen-titanium dioxide Carbon, oxygen-water vapour, oxygen-nitrogen, oxygen air-water etc., install different equipment cables or sensor wire etc..

Generally, for the oxygen-rich gasifying agent of low concentration, can directly be conveyed by borehole casing；And for highly concentrated Oxygen-rich gasifying agent is spent, there is higher requirement to tube wall cleanliness factor, for the sake of safety, needs to use by ungrease treatment and smooth Degree, the satisfactory special pipeline of cleanliness factor are conveyed, and this kind of device for cable, then have the protection of anti-explosion, anti-corrosion Demand.Therefore, because the different delivery requirements or installation requirements that different objects have in drilling, can not be kept away in same drilling The needs exempted from set multiple pipelines simultaneously, and how multiple pipelines are carried out reasonable Arrangement in the limited space that drills becomes coal One of underground mining technologies problem to be solved, common arrangement have inner layer pipe mutually nested with outer layer pipe or The multiple pipelines of person are fitted closely to be arranged in juxtaposition both, and such as application No. is 201410016138.0, entitled " underground gasification is noted The patent of invention of device of air and method " with regard to setting an inner tube and a signal cable in an outer tube, passes through inner tube, outer tube Annular space between inner tube conveys different gases, and what is used is exactly inner layer pipe this mode mutually nested with outer layer pipe； For another example application No. is 201520462545.4, the practicality of entitled " a kind of gasifying agent delivery pipe and its underground fuel gasification system " New patent including water delivery pipe and letter shoot, provides a variety of set-up modes, such as its attached water conveying shown in Fig. 3 It is placed in pipe in letter shoot or as its attached water delivery pipe shown in fig. 5 and letter shoot are affixed side by side.

In place of the deficiencies in the prior art, in use, due to the self property, caliber and force-bearing situation of multiple pipelines Etc. factor it is different, bending, tensile load that different pipelines bear can be made to differ, so that the deformation width of different pipelines Degree is different, and inner layer pipe is caused to wear outer layer pipe, influences fluid conveying or the big pipeline of deformation forces deformation arranged side by side small Pipeline tear, these bring a negative impact to the normal operation of pipeline.

Utility model content

The purpose of this utility model is to provide a kind of boundling pipe device and bundle pipes for underground coal gasification(UCG) and conveys dress It puts, with the above-mentioned shortcoming in solution technology.

To achieve these goals, the utility model provides following technical solution：

A kind of boundling pipe device for underground coal gasification(UCG) including at least two continuous pipes, further includes fixing piece, more The continuous pipe is connected to side by side on the fixing piece, and the axis of each continuous pipe is arranged in parallel, and connects described in arbitrary neighborhood two There is predetermined gap between the outer wall of continuous pipe.

Above-mentioned boundling pipe device, the radial dimension of the more continuous pipes are identical or not exactly the same.

Above-mentioned boundling pipe device, each continuous pipe are movably connected on the fixing piece.

Above-mentioned boundling pipe device, each continuous pipe form integral structure with the fixing piece.

Above-mentioned boundling pipe device, the axis of each continuous pipe are in the same plane.

Above-mentioned boundling pipe device, the size of the predetermined gap between the two continuous pipes is by the two continuous pipe Size, material, the connection mode decision with the fixing piece.

Above-mentioned boundling pipe device, the fixing piece have multiple, and multiple fixing pieces are in the axial direction of the continuous pipe Arranged for interval successively.

Above-mentioned boundling pipe device, the fixing piece is axially extending along the continuous pipe, and the fixing piece wraps up institute State continuous pipe.

Casing is cased in above-mentioned boundling pipe device, at least a continuous pipe.

Above-mentioned boundling pipe device further includes first jet, and mixing chamber, the mixing chamber are provided in the first jet It is connected at least two continuous pipes.

Above-mentioned boundling pipe device, further includes second nozzle, and setting is there are two individual cavity on the second nozzle, two Individual cavity connects respectively with two continuous pipe one-to-one correspondence.

Above-mentioned boundling pipe device, the part that second nozzle described in the continuous Guan Shangyu is connected are provided with non-return valve, cut One or more of cutting apparatus and packer.

Above-mentioned boundling pipe device, the size of the predetermined gap between the two neighboring continuous pipe are described continuous with this two The sum of radial dimension of pipe is directly proportional.

A kind of bundle pipes conveying device for underground coal gasification(UCG), including multiple delivery pipes, stent and rotation connection Reel on the stent further includes above-mentioned boundling pipe device, and the delivery pipe is located in the centre bore of the reel, each institute It states continuous pipe to be wound on the reel, the tail end of each continuous pipe is located on the outside of the reel, the tail of each continuous pipe End connects one to one with each delivery pipe, and the tail end of the continuous pipe is connect by rotary body with the delivery pipe.

Above-mentioned bundle pipes conveying device, the axis of each continuous pipe direction arranged side by side and the central axis of the reel Direction is parallel.

In the above-mentioned technical solutions, the boundling pipe device provided by the utility model for underground coal gasification(UCG), Duo Gelian Continuous pipe is set up in parallel and has a predetermined gap between each other, so when the deformation that amplitude differs occurs for different continuous pipes, It reduces or even eliminates the influence to other continuous pipes, so as to reduce or even eliminate the negative effect of normal operation.

Since above-mentioned boundling pipe device has above-mentioned technique effect, the bundle pipes conveying device comprising the boundling pipe device There should be corresponding technique effect.

Description of the drawings

It in order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only described in the utility model Some embodiments, for those of ordinary skill in the art, can also be obtained according to these attached drawings other attached drawings.

Figure 1A/1B/1C is that the structure for the boundling pipe device for including two continuous pipes that the utility model embodiment provides is shown It is intended to；

Fig. 2A/2B/2C is that the structure for the boundling pipe device for including three continuous pipes that the utility model embodiment provides is shown It is intended to；

Fig. 3 A/3B are the structure diagram of the boundling pipe device with nozzle that the utility model embodiment provides；O₂

Fig. 4 A/4B are the structure diagram of the boundling pipe device with second nozzle that the utility model embodiment provides；

Fig. 5 A/5B are the structure diagram of the boundling pipe device with first jet that the utility model embodiment provides；

Fig. 6 A/6B/6C are the structure diagram of the boundling pipe device with non-return valve that the utility model embodiment provides

Fig. 7 is the structure diagram of reel that the utility model embodiment provides；

Fig. 8 is the usage state diagram of bundle pipes conveying device that the utility model embodiment provides.

Reference sign：

1st, continuous pipe；2nd, fixing piece；3rd, it drills；4th, ground；5th, coal seam；6th, first jet；6.1st, mixing chamber；7th, the second spray Mouth；7.1st, individual cavity；8th, non-return valve；9th, reel；10th, delivery pipe；11st, rotary body；12nd, injector；13rd, combustion chamber.

Specific embodiment

In order to which those skilled in the art is made to more fully understand the technical solution of the utility model, below in conjunction with attached drawing pair The utility model is further detailed.

As shown in Figure 1, a kind of boundling pipe device for underground coal gasification(UCG) that a kind of embodiment of the utility model provides, Including fixing piece 2 and two continuous pipes 1, two continuous pipes 1 are connected to side by side on fixing piece 2, and the axis of two continuous pipes 1 is parallel It sets, there is predetermined gap between the outer wall of the two continuous pipes 1.As figs. 1A and 1 c show, the radial dimension phase of two continuous pipes 1 Together, as shown in Figure 1B, the radial dimension of two continuous pipes 1 is different.Correspondingly, in addition to radial dimension, the wall of two continuous pipes 1 Thickness, material, shape may be the same or different, and fixing piece 2 can be flexibly connected with continuous pipe 1, i.e., continuous pipe 1 is socketed in On fixing piece 2, there can be certain movable amplitude, can also be fixedly connected with or even be formed integral structure with fixing piece 2, Integral structure is such as formed by plastic squeezing technique.

In the present embodiment, fixing piece 2 can be clamp structure, clamping structure or winding arrangement, so clamping, clamping Or it is wound on continuous pipe 1.

In the present embodiment, more preferably, fixing piece 2 has high temperature resistant, Corrosion Protection, overall material or appearance The material in face is corresponding fire retardant, anticorrosive corrosion material, so to protect continuous pipe 1.

In the present embodiment, fixing piece 2 can be the relatively small structure of size, i.e., it only covers one section of continuous pipe 1, Gu Determining part 2 has many, arranges along the axial uniform intervals of continuous pipe 1, is realized by multiple fixing pieces 2 to continuous pipe 1 It is fixed.Fixing piece 2 can also be larger-size structure, and axial dimension is identical or basic with the axial dimension of continuous pipe 1 Identical, continuous pipe 1 is completely covered in fixing piece 2, and in addition to being leaked out except both ends, continuous pipe 1 is integrally located at the inside of fixing piece 2.

Further at this time, fixing piece 2 includes the transition of two connecting portions of connecting portion and connection of two continuous pipes 1 of connection Portion, wherein, transition part is elastic portion, and with certain elasticity or deformability, as shown in Figure 1 C, two connecting portions are two A cylinder, two continuous pipes 1 are socketed in respectively in two cylinders, transition part be connect two cylinders laminated structure, the sheet Structure has deformability a little, and the deformation that a continuous pipe 1 is reduced by the deformability of transition part connects another The influence of continuous pipe 1.

In the present embodiment, the axis of two continuous pipes 1 is arranged in parallel, if two continuous pipes 1 are pipe, two pipes Centerline axis parallel setting, if continuous pipe 1 is elliptical tube, square tube, its corresponding geometric center lines are center axis, if Continuous pipe 1 is the special-shaped pipeline of no clear and definite center line, then referred to herein as (tens meters extremely in the expanded range of continuous pipe 1 Hundreds of meters are differed), two continuous pipes 1 will not be in direct contact, and the distance between the outer wall of two continuous pipes 1 is identical or basic phase Together.

In the present embodiment, there is predetermined gap between the outer wall of the two continuous pipes 1, i.e., it is not straight between the outer wall of two continuous pipes 1 Contact, the purpose for setting the predetermined gap are, when one of them continuous pipe 1 because of stretching, expansion, compression and distortion speed When rate etc. factor deforms, the amplitude of deformation from another continuous pipe 1 almost certainly will be different, due to depositing for predetermined gap When amplitude of deformation is smaller, due to the presence of deformation gap, the deformation of one of them continuous pipe 1 almost influences another Continuous pipe 1, and when amplitude of deformation is larger, due to the presence of deformation gap, can also reduce the continuous pipe 1 influences another company The amplitude of deformation of continuous pipe 1 so reduces the negative effect of the normal operation to boundling pipe device.

In the present embodiment, the size of predetermined gap can be determined according to the maximum distortion amplitude of two continuous pipes 1, such as one Continuous amplitude of deformation of the pipe 1 under extreme operating conditions is 5mm, another the deformation width of continuous pipe 1 under extreme operating conditions It spends for 15mm, then predetermined gap is more than 20mm.As preference, the size of the predetermined gap between two continuous pipes 1 is as this described in two The size of continuous pipe 1, material determine with the connection mode of the fixing piece 2, and such as with size direct ratio, coefficient of thermal expansion and contraction is larger Material predetermined gap it is larger etc..

As shown in Fig. 2, a kind of bundle pipes for underground coal gasification(UCG) that the utility model another kind embodiment provides fill It puts, including fixing piece 2 and three continuous pipes 1, three continuous pipes 1 are connected to side by side on fixing piece 2, the axis of three continuous pipes 1 It is arranged in parallel, there is predetermined gap between the outer wall of the two continuous pipes 1.

Boundling pipe device provided in this embodiment and the aforementioned boundling pipe device being made of two continuous pipes 1 are in all fields Can be identical, the additional arrangement form for being in three continuous pipes 1, three central axis of three continuous pipes 1 are two-by-two Between it is parallel to each other, three continuous pipes 1 are whole to be triangularly arranged, i.e. three central axis be not located on same plane or Three central axis of three continuous pipes 1 are in the same plane, the advantage is that, in the same plane three central shafts Continuous 1 entirety of pipe of three of line is in flat, can preferably be wound on reel 9, refer to the description at reel 9 hereinafter.

In the utility model, it is clear that, in addition to two, three continuous pipes 1, the company of four, five or even more root Continuous pipe 1 can be equally connected to certain predetermined gap on fixing piece 2, similarly realize above-mentioned technique effect.

In the utility model, continuous pipe 1 can be pipeline, for conveying gasifying agent or cable, for conveying electricity Power or sensor, gasifying agent can be by air, oxygen, oxygen-enriched (oxygen concentration is more than 21%) and other compositions (nitrogen, two Carbonoxide, water, water vapour) in any one and/or a combination thereof.As boundling pipe device includes two independent continuous pipes 1, phase That answers sets two independent delivery pipes 10 in the bundle pipes other end, wherein a continuous pipe 1 is used for conveying oxygen as supervisor, Another continuous pipe 1 is as subsidiary conduit, for conveying water.Or boundling pipe device includes three independent continuous pipes 1, removes Outside two pipelines for conveying oxygen and water, third root is signal cable, and signal cable connects sensor, such as temperature sensor, pressure Force snesor, displacement sensor etc., for monitoring in coal seam 5, in bundle pipes, the state of arts of nozzle end.Or third root Independent continuous pipe 1 reacts for catalytic gasification for conveying other reacting fluids, such as catalyst, additive and improves methane Content etc..Again or more continuous pipes 1 are used for conveying the igniter fuels such as silane, propane, for lighting coal seam 5.

In the utility model, it is preferred that it is interior at least one in more continuous pipes 1 to be cased with casing, i.e., it is at least one continuous Pipe 1 is compound pipeline complex pipeline, and so continuous pipe 1 can convey the medium of more than one type.

As shown in figure 3, in the further embodiment of the utility model, the end of continuous pipe 1 is connected with nozzle and/or burning Device, the tail portion of each continuous pipe 1 individually connects a nozzle or the tail portion of each conveying gasifying agent individually connects one Nozzle.

As shown in figure 4, in the further embodiment of the utility model, the end of continuous pipe 1 is connected with second nozzle 7, the Two nozzles 7 are outer mixed mode nozzle, are set on the second nozzle 7 there are two individual cavity 7.1, two individual cavities 7.1 to be distinguished It being connected with two continuous one-to-one correspondence of pipe 1, continuous pipe 1 can be two, three or more, two of which conveying burning The pipeline of medium connects two individual cavities 7.1 on second nozzle 7, the conveying combustion outward respectively of two individual cavities 7.1 respectively Medium is burnt, two kinds of combustion mediums mix to burn in the outside of second nozzle 7.

As shown in figure 5, in the further embodiment of the utility model, the end of continuous pipe 1 is connected with first jet 6, the One nozzle 6 is internal-mixing nozzle, and mixing chamber 6.1, the mixing chamber 6.1 and at least two institutes are provided in the first jet 6 Continuous pipe 1 is stated to be connected, continuous pipe 1 can be two, three or more, two of which conveying combustion medium pipeline with Mixing chamber 6.1 is connected, and such two kinds of combustion mediums are first mixed in mixing chamber 6.1, are exported and are burnt again after mixing.

As shown in fig. 6, in the further embodiment of the utility model, it is connected on the continuous pipe 1 with the second nozzle 7 Part be provided with one or more of non-return valve 8, shear and packer, non-return valve 8 is one-way cock, is used for Prevent gas in combustion chamber 13 from inversely entering in continuous pipe 1, shear is hand shears structure or automatic shearing mechanism, It is used for after nozzle is stuck because of failure, is cut continuous pipe 1, is facilitated the taking-up of boundling pipe device；Packer is for the company of packing Annular space between continuous pipe 1 and drilling 3 is avoided after stopping gas injection, and coal gas, which enters annular space and mixed with gasifying agent, to explode.

In the utility model, when the end of continuous pipe 1 connection be not second nozzle 7, and connect be single nozzles or During person's first jet 6, it can equally be provided with one or more of non-return valve 8, shear and packer, Ke Yishi Existing identical technique effect.

As Figure 7-8, the utility model also provides a kind of bundle pipes conveying device for underground coal gasification(UCG), including Multiple delivery pipes 10, stent and the reel 9 being rotationally connected on the stent further include above-mentioned boundling pipe device, described defeated Pipe 10 is sent to be located in the centre bore of the reel 9, each continuous pipe 1 is wound on the reel 9, each continuous pipe 1 Tail end is located at 9 outside of reel, and tail end and each delivery pipe 10 of each continuous pipe 1 connect one to one, the company The tail end of continuous pipe 1 is connect by rotary body 11 with the delivery pipe 10.

Specifically, delivery pipe 10 is corresponded with connecting tube, it is used to convey gasifying agent or other fluids to connecting tube, Or connection signal cable, continuous pipe 1 is whole to be wound on reel 9, thus by the rotation of reel 9 continuous pipe 1 to be stretched into In drilling 3, the tail end of continuous pipe 1 is located at the outside of reel 9 and is connected by rotary body 11 with delivery pipe 10, and delivery pipe 10 is located at In the centre bore of reel 9, delivery pipe 10 will not rotate when such reel 9 rotates, and continuous pipe 1 can integrally follow 9 moving of reel, Rotary body 11 is used to match the different motion state of continuous pipe 1 and delivery pipe 10, and rotary body 11 includes a cylinder, both ends difference It is connected with continuous pipe 1 and delivery pipe 10, but it is rotatablely connected with continuous pipe 1 and is either rotatablely connected with delivery pipe 10 or simultaneously It is rotatablely connected with continuous pipe 1 and delivery pipe 10, so when continuous pipe 1 rotates and delivery pipe 10 can keep not rotating.

In the present embodiment, as shown in fig. 7, further, the axis direction arranged side by side of each continuous pipe 1 and the reel 9 central axial direction is parallel, when continuous pipe 1 there are two when, two central axis are in the same plane, and when continuous pipe 1 When there are three more than, the axis of three or more of continuous pipe 1 is also on same plane, and the extending direction of the plane is Axis direction arranged side by side, in Fig. 7, the planar circular reel 9 residing for multiple axis is set, and the effect of such setting is, each institute It is in flat to state continuous pipe 1, is laid on reel 9 with flat larger plane, more consolidation is so wound on reel 9, compared with Adequately to utilize space.

Since above-mentioned boundling pipe device has above-mentioned technique effect, the bundle pipes conveying device comprising the boundling pipe device There should be corresponding technique effect.

The utility model also provides a kind of bundle pipes conveying device for underground coal gasification(UCG), and when operation includes following step Suddenly：

A) bundle pipes preventer, bundle pipes injector 12 are being installed into 3 aperture of gas drilling hole, by the collection on reel 9 Beam tube device penetrates bundle pipes injector 12, bundle pipes preventer, clamps boundling pipe device by bundle pipes injector 12, will connect It in the nozzle of boundling pipe end, is sent into gas drilling hole 3, and transfers to 5 precalculated position of coal seam.

B) boundling pipe device is connect with the boundling pipe end on 9 central shaft of reel, and by each sensor control signal, electricity The signal access control apparatus of movable valve, instrument according to the needs of operation process, injects required fluid into continuous pipe 1.When When performing igniting operation, certain flow air is first placed on coal seam 5 by the feeding of continuous pipe 1 in boundling pipe device and is pre-positioned In the burner put, then a certain amount of silane is sent by continuous pipe 1 in burner, at the same time by propane also by even Continuous pipe 1 is sent into, and silane encounters air spontaneous combustion so as to the propane that ignites, and propane burning again lights coal seam 5.After coal seam 5 is lighted, in coal Layer 5 in formed combustion chamber 13, oxygen can will be sent into continuous pipe 1, water is sent into continuous pipe 1, carry out gasification production (or gasification adopt Coal operation), the coal gas that gasification generates is discharged to ground 4 for later use by going out gas drilling hole 3.

C) it in fluid injection, is burnt by the sensor survey coal seam 5 for setting nozzle end, vaporized state, and pass through Control device is monitored, while will export gas composition data access control device, by the number such as sensor, gas composition According to analysis, and pass through autocontrol valve etc., the flow of each fluid of adjust automatically, so as to control oxygen concentration, water oxygen ratio, vapour The technological parameters such as oxygen ratio outlet gas composition to be adjusted, realize the stability contorting of production process.

D) after the coal mining activity process that gasifies, by bundle pipes injector 12, bundle pipes preventer, reel 9 association With control, by the way that bundle pipes are above carried, nozzle is moved to a 5 lower pre-position of coal seam.

Above certain exemplary embodiments that the utility model is only described by way of explanation, undoubtedly, for Those of ordinary skill in the art, can be with a variety of different in the case of the spirit and scope without departing from the utility model Mode is modified described embodiment.Therefore, above-mentioned attached drawing and description are regarded as illustrative in nature, and should not be construed as Limitation to the utility model claims protection domain.

Claims (10)

1. a kind of boundling pipe device for underground coal gasification(UCG), including at least two continuous pipes, which is characterized in that further include solid Determine part, the more continuous pipes are connected to side by side on the fixing piece, and the axis of each continuous pipe is arranged in parallel, arbitrary neighborhood There is predetermined gap between the outer wall of the two continuous pipes.

2. boundling pipe device according to claim 1, which is characterized in that the radial dimension of the more continuous pipes it is identical or It is not exactly the same.

3. boundling pipe device according to claim 1 or 2, which is characterized in that each continuous pipe is movably connected on described On fixing piece or each continuous pipe forms integral structure with the fixing piece.

4. boundling pipe device according to claim 1, which is characterized in that the axis of each continuous pipe is in same plane On.

5. boundling pipe device according to claim 1, which is characterized in that the predetermined gap between the two continuous pipes Size determines by the size of the two continuous pipe, material, with the connection mode of the fixing piece, the two neighboring continuous pipe Between predetermined gap size it is directly proportional with the sum of the radial dimension of this two continuous pipes.

6. boundling pipe device according to claim 1, which is characterized in that the fixing piece has multiple, multiple fixations Part arranged for interval successively in the axial direction of the continuous pipe.

7. boundling pipe device according to claim 1, which is characterized in that the fixing piece along the continuous pipe axial direction Extension, the fixing piece wrap up the continuous pipe.

8. boundling pipe device according to claim 1, which is characterized in that first jet or second nozzle are further included,

When for first jet, mixing chamber, the mixing chamber and at least two continuous pipes are provided in the first jet It is connected；

When for second nozzle, on the second nozzle setting there are two individual cavity, two individual cavities respectively with two institutes It states continuous pipe and corresponds connection.

9. a kind of bundle pipes conveying device for underground coal gasification(UCG) including multiple delivery pipes, stent and is rotationally connected with Reel on the stent, which is characterized in that further include any one of the claim 1-8 boundling pipe devices, the delivery pipe In the centre bore of the reel, each continuous pipe is wound on the reel, and the tail end of each continuous pipe is located at institute It states on the outside of reel, tail end and each delivery pipe of each continuous pipe connect one to one, and the tail end of the continuous pipe passes through Rotary body is connect with the delivery pipe.

10. bundle pipes conveying device according to claim 9, which is characterized in that further include bundle pipes described in claim 4 Device, the direction that the axis of each continuous pipe is arranged side by side are parallel with the central axial direction of the reel.