CN202176842U - Hermetic connection structure for coal mine underground gas extraction pipelines - Google Patents

Hermetic connection structure for coal mine underground gas extraction pipelines Download PDF

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Publication number
CN202176842U
CN202176842U CN2011202721707U CN201120272170U CN202176842U CN 202176842 U CN202176842 U CN 202176842U CN 2011202721707 U CN2011202721707 U CN 2011202721707U CN 201120272170 U CN201120272170 U CN 201120272170U CN 202176842 U CN202176842 U CN 202176842U
Authority
CN
China
Prior art keywords
connector
coal mine
subduct
connectors
outer ring
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 - Fee Related
Application number
CN2011202721707U
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Chinese (zh)
Inventor
刘晓
李锋
李自超
赵朔
殷永辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan University of Technology
Original Assignee
Henan University of Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Henan University of Technology filed Critical Henan University of Technology
Priority to CN2011202721707U priority Critical patent/CN202176842U/en
Application granted granted Critical
Publication of CN202176842U publication Critical patent/CN202176842U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a hermetic connection structure for coal mine underground gas extraction pipelines. The structure comprises a secondary pipeline connector and a master pipeline connector of which end parts are docked, the external diameter size of the master pipeline connector is matched with the internal diameter size of the secondary pipeline connector, a docking end of the secondary pipeline connector is provided with an external screw thread, an outer ring of the master pipeline connector is provided with a ring-shaped connector, an end face of the ring-shaped connector towards the secondary pipeline connector is provided with a connection groove, the groove wall of the outer ring of the connection groove is provided with an internal screw thread matched with the external screw thread of the secondary pipeline connector, a conic hermetic connector is fixedly sleeved on the outer ring of the master pipeline connector, the hermetic connector is made of elastic material, and the opening of the connection groove is over against the big end of the hermetic connector. The utility model is a quick and efficient hermetic connection structure for the coal mine underground pipelines.

Description

Coal mine gas extraction line seal connecting structure
Technical field
The utility model relates to a kind of coal mine gas extraction pipeline fast hitch mechanism, can carry out fast the fixing less demanding gas pipeline in down-hole, the sealing connection.
Background technique
Gas is the key factor of restriction Safety of Coal Mine Production; Depending merely on method of ventilation for high gassy mine and outstanding ore deposit is the outburst amount that can't bear coal-bed gas; Only reliable gas pumping therefore for high-yield and high-efficiency working surface and mine, is strengthened gas pumping, is improved the gas pumping rate; To guaranteeing safety in production, play decisive role.
China's damp overwhelming majority enters atmosphere with the wind at present, and the annual methane number that in atmosphere, discharges is at 10,000,000,000 m 3More than.Main component methane in the gas is a kind of gas with strong greenhouse effect, and its greenhouse effect compare CO 2Big more than 20 times, the heavy damage atmosphere environment.Simultaneously, coal mine gas is again a kind of high-quality clean energy resource of preciousness, just can be used as civilian, industrial fuel or raw material as long as guarantee concentration, but gas extraction utilization ratio less than 10%, drawing-off gas causes severe energy waste.
The principal element of restriction gas utilization is exactly that concentration is low excessively.Yet; Gas in the coal seam always keeps quite high concentration; Cause the big reason of gas pumping aperture concentration and ground extraction pumping plant concentration great disparity to have a lot; Comprising reasons such as sealing quality is not high, coal petrography cranny development, drilling quality difference, is the principal element that causes gas density sharply to reduce but the extraction pipeline connects the sealing difference.And national correlation department is not put into effect relevant gas pipeline yet and is connected standard; The gas pumping pipeline in each ore deposit respectively has a cover way; Have plenty of with screw thread and partly connect at pipe joint; The way of having plenty of with the iron wire binding connects, and what have docks with flange plate ... These methods can solve certain problem, but ubiquity that workman's muscle power is wasteful, complicated operation, problem such as poorly sealed; The workman is unwilling to use under this rugged environment in down-hole, does not obtain excellent popularization and application.
The model utility content
The purpose of the utility model provides a kind of coal mine gas pipeline sealed attachment structure rapidly and efficiently that is used for.
For realizing above-mentioned purpose; The utility model adopts following technological scheme: a kind of coal mine gas extraction line seal connecting structure; Comprise the son of butt-end, female pipe coupling, the outside dimension of female pipe coupling and the internal diameter size of subduct connectors are suitable, and the butt end of subduct connectors is provided with outside thread; The outer ring fixed cover of female pipe coupling is provided with annular connecting head; Connecting head is offered connecting groove towards the end face of subduct connectors, the adaptive internal thread of outside thread of setting and subduct connectors on the outer ring cell wall of connecting groove, and the outer ring of female pipe coupling also fixed cover is provided with the cone seal joint; SEALING FITTING is processed by elastic material, and the notch of connecting groove is over against the big end of SEALING FITTING.
Said SEALING FITTING is a frustoconic shape.
SEALING FITTING is processed by rubber material.
The utility model coal mine gas extraction line seal connecting structure; Only need in the pipe coupling of frustoconic shape SEALING FITTING intron; Insert the outside thread on the subduct connectors in the connecting groove of female pipe coupling upper binding head then, tighten and make the round platform SEALING FITTING fully get into subduct connectors.Because SEALING FITTING is a frustoconic shape, so its entering is many more, sealing effect is good more, contacts closely more with the subduct connectors inwall, just can stop the entering of air, reaches desirable sealing effect, has guaranteed the extraction concentration of gas.
Description of drawings
Fig. 1 is the son among the utility model embodiment 1, the structural representation of female pipe coupling;
Fig. 2 is the erection drawing of son, female pipe coupling;
Fig. 3 is the structural representation that has the threeway of female pipe coupling among the embodiment 2.
Embodiment
Embodiment 1:
By coal mine gas extraction line seal connecting structure illustrated in figures 1 and 2; Comprise the son of butt-end, female pipe coupling 1,4; The outside dimension of female pipe coupling 4 and the internal diameter size of subduct connectors 1 are suitable, and the butt end of subduct connectors 1 is provided with outside thread 2, and the outer ring fixed cover of female pipe coupling 4 is provided with annular connecting head 7; Connecting head 7 is offered the connecting groove 6 of annular towards the end face of subduct connectors 1; The internal thread 5 adaptive with the outside thread of subduct connectors 12 is set on the outer ring cell wall of connecting groove 6, and the outer ring of female pipe coupling 4 also fixed cover is provided with frustoconic shape SEALING FITTING 3, and SEALING FITTING 3 is processed and sticked to by rubber material in female pipe coupling 4; The notch of connecting groove 6 is over against the big end of SEALING FITTING 3, and the small end of SEALING FITTING 3 is over against subduct connectors 1.
Concrete using process is following:
(1) son, female pipe coupling 1,4 butt joints are in the subduct connectors 1 that SEALING FITTING 3 is inserted into have outside thread 2.
(2) outside thread 2 of son, female pipe coupling 1,4 is connected with internal thread 5; Turn subduct connectors 1; Make frustoconic shape SEALING FITTING 3 fully get into subduct connectors 1, the SEALING FITTING 3 that makes rubber process contacts closely with subduct connectors 1 inwall, so far connects to finish.
Certainly, the utility model is not limited to above-mentioned form, and SEALING FITTING 3 is not limited to frustoconic shape, so long as cone structure, and small end all can reach the effect of sealing over against subduct connectors 1.And also available other elastic materials of SEALING FITTING 3 are processed.
Embodiment 2:
By coal mine gas extraction line seal connecting structure shown in Figure 3; Be on embodiment 1 basis, to realize; Be with embodiment 1 difference; Female pipe coupling 4 is to be arranged on the comparatively common three-way pipe 8, and promptly three of three-way pipe 8 interfaces all are set to the form of female pipe coupling 4, can be connected with three different sub pipe couplings 1.

Claims (3)

1. coal mine gas extraction line seal connecting structure; It is characterized in that: comprise the son of butt-end, female pipe coupling, the outside dimension of female pipe coupling and the internal diameter size of subduct connectors are suitable, and the butt end of subduct connectors is provided with outside thread; The outer ring fixed cover of female pipe coupling is provided with annular connecting head; Connecting head is offered connecting groove towards the end face of subduct connectors, the adaptive internal thread of outside thread of setting and subduct connectors on the outer ring cell wall of connecting groove, and the outer ring of female pipe coupling also fixed cover is provided with the cone seal joint; SEALING FITTING is processed by elastic material, and the notch of connecting groove is over against the big end of SEALING FITTING.
2. coal mine gas extraction line seal connecting structure as claimed in claim 1, it is characterized in that: said SEALING FITTING is a frustoconic shape.
3. according to claim 1 or claim 2 coal mine gas extraction line seal connecting structure, it is characterized in that: SEALING FITTING is processed by rubber material.
CN2011202721707U 2011-07-29 2011-07-29 Hermetic connection structure for coal mine underground gas extraction pipelines Expired - Fee Related CN202176842U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202721707U CN202176842U (en) 2011-07-29 2011-07-29 Hermetic connection structure for coal mine underground gas extraction pipelines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202721707U CN202176842U (en) 2011-07-29 2011-07-29 Hermetic connection structure for coal mine underground gas extraction pipelines

Publications (1)

Publication Number Publication Date
CN202176842U true CN202176842U (en) 2012-03-28

Family

ID=45866720

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011202721707U Expired - Fee Related CN202176842U (en) 2011-07-29 2011-07-29 Hermetic connection structure for coal mine underground gas extraction pipelines

Country Status (1)

Country Link
CN (1) CN202176842U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103292082A (en) * 2013-06-04 2013-09-11 无锡金顶石油管材配件制造有限公司 Embedded port structure for high-pressure delivery pipelines
CN105241750A (en) * 2015-11-24 2016-01-13 四川大学 Pressing head system for indoor triaxial hydrofracture experiment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103292082A (en) * 2013-06-04 2013-09-11 无锡金顶石油管材配件制造有限公司 Embedded port structure for high-pressure delivery pipelines
CN103292082B (en) * 2013-06-04 2017-02-08 温州众和拉链有限公司 Embedded port structure for high-pressure delivery pipelines
CN105241750A (en) * 2015-11-24 2016-01-13 四川大学 Pressing head system for indoor triaxial hydrofracture experiment

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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: 20120328

Termination date: 20140729

EXPY Termination of patent right or utility model