CN210950284U

CN210950284U - Pipeline connecting mechanism for burner nozzle

Info

Publication number: CN210950284U
Application number: CN201921969738.3U
Authority: CN
Inventors: 顾骏勇
Original assignee: Wuxi Huaneng Thermal Equipment Co ltd
Current assignee: Wuxi Huaneng Equipment Technology Co ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-07-07
Anticipated expiration: 2029-11-14

Abstract

The utility model relates to a combustor coupling assembling technical field just discloses a pipeline coupling mechanism for combustor nozzle, including transmission pipe and spray tube, the spray tube is pegged graft in the inboard of transmission pipe, arc sliding clamping groove has all been seted up to the inboard top and bottom in a port of transmission pipe, the port department of spray tube install with the arc fixture block of arc sliding clamping groove looks adaptation, the arc fixture block is located corresponding arc sliding clamping groove, the seal frame is installed to the top and the bottom symmetry of transmission pipe. This pipeline coupling mechanism for combustor nozzle, it is not hard up effectually to avoid producing relative rotation between spray tube and the transmission pipe, increase the joint strength between spray tube and the transmission pipe, spray tube and arc seal piece carry out dual sealed at the inner chamber of transmission pipe simultaneously, the ring card is gone into in the ring seal groove is gone into to the circle card, and the asbestos pad carries out sealed cooperation with the inside wall of ring seal groove, the effectual connection leakproofness that increases between spray tube and the transmission pipe, it is whole to increase the connection between spray tube and the transmission pipe.

Description

Pipeline connecting mechanism for burner nozzle

Technical Field

The utility model relates to a combustor coupling assembling technical field specifically is a pipeline coupling mechanism for combustor nozzle.

Background

The combustor is also called as a combustor and can be divided into an oil combustor and a gas combustor according to fuel; the combustor is commonly referred to as a boiler combustor, the combustor needs to guide gas or pulverized coal out through a nozzle to be mixed and combusted with air, but the nozzle of the combustor is generally connected with a transmission pipe through a spray pipe when being connected with the transmission pipe, the spray pipe and the transmission pipe are generally mutually positioned and connected through threads, the spray pipe and the transmission pipe can move relatively to a certain degree when in use, the threaded connection between the spray pipe and the transmission pipe is easy to loosen, and leakage of circulating fuel is easy to cause, therefore, the inventor designs a pipeline connecting structure for the burner nozzle, so as to ensure the stability of the connection of the nozzle pipeline.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a pipeline coupling mechanism for combustor nozzle has solved and has connected the easy not hard up problem between the combustor nozzle pipeline coupling mechanism.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a pipeline connecting mechanism for a burner nozzle comprises a transmission pipe and a spray pipe, wherein the spray pipe is inserted in the inner side of the transmission pipe, the top and the bottom of the inner side of one end opening of the transmission pipe are respectively provided with an arc-shaped sliding clamping groove, an arc-shaped clamping block matched with the arc-shaped sliding clamping grooves is installed at the end opening of the spray pipe, the arc-shaped clamping block is positioned in the corresponding arc-shaped sliding clamping groove, the top and the bottom of the transmission pipe are symmetrically provided with a sealing frame, star-shaped screw rods are movably installed on the two sealing frames, respectively penetrate through the corresponding sealing frames and are movably installed on the inner sides of the sealing frames through miniature bearing seats, respectively and are in threaded connection with ball nuts, the matching surfaces of the two sealing frames and the transmission pipe are respectively provided with mutually communicated through holes, the inner sides of the through holes are provided with sealing rings, the inner sides of the two arc-, the through hole is linked together with corresponding groove of accomodating, equal symmetrical installation has movable push rod on two ball nut, movable push rod's one end runs through corresponding through hole and extends to the inboard of accomodating the groove, two corresponding movable push rod fixedly connected with arc seal block between the one end that is located to accomodate the inslot side, the arc seal block is located the corresponding inboard of accomodating the groove, the annular seal groove has been seted up to the port face of transmission pipe, install sealed dish on the spray tube, sealed dish has the annular card to go into the circle at the side fixed mounting that is close to the annular seal groove, the inboard of annular seal groove is gone into to the circle card, the surface bonding that the circle was gone into to the annular.

Preferably, the arc-shaped clamping blocks and the corresponding arc-shaped sliding clamping grooves are in clearance fit, the arc-shaped clamping blocks are identical to the arc-shaped sliding clamping grooves in shape, and the two arc-shaped clamping blocks are symmetrically arranged around the center of the spray pipe.

Preferably, the end face of the arc-shaped clamping block is flush with the end face of the spray pipe, and the length of the spray pipe inserted into the transmission pipe is equal to the transverse length of the arc-shaped sliding clamping groove.

Preferably, the fit relation between the annular clamping ring and the annular sealing groove is clearance fit, the outer diameter of the sealing disc is larger than the outer diameter of the port of the transmission pipe, and the end face of the sealing disc completely covers and contacts the end face of the transmission pipe.

Preferably, the arc sealing block and the corresponding matching relationship between the inner side walls of the storage grooves are in clearance fit, the arc inner side walls of the arc sealing blocks are in contact with the outer wall of the spray pipe, and the arc sealing blocks can be completely stored to the inner sides of the storage grooves when being stored.

Preferably, the movable push rods on the two sides of the ball nut are symmetrically arranged around the ball nut, and the movable push rods are in movable sealing fit with the inner side wall of the through hole through the sealing rings.

Preferably, the arc-shaped sealing block props against and contacts the corresponding arc-shaped fixture block.

Preferably, the fit relationship between the outer wall of the spray pipe and the inner side wall of the conveying pipe is clearance fit.

(III) advantageous effects

The utility model provides a pipeline coupling mechanism for combustor nozzle. The method has the following beneficial effects:

(1) this pipeline connection mechanism for combustor nozzle, mutually support through setting up arc fixture block and arc slip draw-in groove, when equipment uses, the spray tube passes through the inboard that arc fixture block inserted arc slip draw-in groove, the extreme position inside wall of arc slip draw-in groove is contradicted to the terminal surface of arc fixture block until, the sealed piece of rethread arc pushes away the inboard to arc slip draw-in groove, make the sealed piece of arc to contradict the arc fixture block that is located extreme position, thereby effectually fix a position the spray tube, effectually avoid producing relative rotation between spray tube and the transmission pipe not hard up, increase the joint strength between spray tube and the transmission pipe, spray tube and the sealed piece of arc carry out dual sealing at the inner chamber of transmission pipe simultaneously, the connection leakproofness between effectual increase spray tube and the transmission pipe.

(2) This pipeline coupling mechanism for combustor nozzle, through setting up sealed dish, ring card income circle and transmission pipe and mutually support, when equipment uses, contradict arc fixture block at arc seal piece, ring card income circle card is gone into in the ring seal groove this moment, and the asbestos pad seals up the cooperation with the inside wall of ring seal groove to effectual increase spray tube and the connection leakproofness between the transmission pipe, increase the connection between spray tube and the transmission pipe simultaneously wholly.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is an enlarged view of the structure at B in FIG. 1;

fig. 4 is a schematic view of the port of the transmission tube of the present invention.

In the figure: the device comprises a transmission pipe 1, a spray pipe 2, an arc-shaped sliding clamping groove 3, an arc-shaped clamping block 4, a sealing frame 5, a star-shaped screw 6, a ball nut 7, a through hole 8, a containing groove 9, a movable push rod 10, an arc-shaped sealing block 11, an annular sealing groove 12, a sealing disc 13, an annular clamping ring 14 and an asbestos pad 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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 work belong to the protection scope of the present invention.

As shown in fig. 1-4, the utility model provides a technical solution: a pipeline connecting mechanism for a burner nozzle comprises a transmission pipe 1 and a spray pipe 2, wherein the spray pipe 2 is inserted in the inner side of the transmission pipe 1, the matching relationship between the outer wall of the spray pipe 2 and the inner side wall of the transmission pipe 1 is clearance fit, the top and the bottom of the inner side of one end opening of the transmission pipe 1 are respectively provided with an arc-shaped sliding clamping groove 3, the end opening of the spray pipe 2 is provided with an arc-shaped clamping block 4 matched with the arc-shaped sliding clamping groove 3, the arc-shaped clamping block 4 is positioned in the corresponding arc-shaped sliding clamping groove 3, the matching relationship between the arc-shaped clamping block 4 and the corresponding arc-shaped sliding clamping groove 3 is clearance fit, the shape of the arc-shaped clamping block 4 is the same as the arrangement shape of the arc-shaped sliding clamping groove 3, the two arc-shaped clamping blocks 4 are symmetrically arranged relative to the center of the spray pipe 2, the end surface, sealing frames 5 are symmetrically arranged at the top and the bottom of a transmission pipe 1, star-shaped screws 6 are movably arranged on the two sealing frames 5, the star-shaped screws 6 respectively penetrate through the corresponding sealing frames 5 and are movably arranged at the inner sides of the sealing frames 5 through miniature bearing seats, screw rod parts of the star-shaped screws 6 are movably positioned on the sealing frames 5 through positioning bearings, ball nuts 7 are respectively connected onto the two star-shaped screws 6 in a threaded manner, mutually communicated through holes 8 are respectively formed in matching surfaces of the two sealing frames 5 and the transmission pipe 1, sealing rings are arranged at the inner sides of the through holes 8, accommodating grooves 9 are respectively formed at the inner sides of the two arc-shaped sliding clamping grooves 3, the two accommodating grooves 9 respectively correspond to the two sealing frames 5 in position, the through holes 8 are communicated with the corresponding accommodating grooves 9, movable push rods 10 are symmetrically arranged on the two ball nuts 7, one ends of the movable push rods 10 penetrate through the corresponding through holes 8 and, the movable push rods 10 are movably pushed or contracted in the sealing rings to ensure the movable sealing performance of the movable push rods 10, the movable push rods 10 on the two sides of the ball nut 7 are symmetrically arranged relative to the ball nut 7, the movable push rods 10 are movably sealed and matched with the inner side walls of the through holes 8 through the sealing rings, arc-shaped sealing blocks 11 are fixedly connected between one ends of the two corresponding movable push rods 10 positioned on the inner sides of the accommodating grooves 9, the arc-shaped sealing blocks 11 are positioned on the inner sides of the corresponding accommodating grooves 9, the matching relationship between the arc-shaped sealing blocks 11 and the inner side walls of the corresponding accommodating grooves 9 is clearance fit, the arc-shaped inner side walls of the arc-shaped sealing blocks 11 are contacted with the outer wall of the spray pipe 2, the arc-shaped sealing blocks 11 abut against and contact the corresponding arc-shaped clamping blocks 4, the arc-shaped sealing blocks 11 can be completely accommodated to the inner sides of the accommodating, install sealed dish 13 on spray tube 2, sealed dish 13 has annular card to go into circle 14 at the side fixed mounting who is close to annular seal groove 12, the inboard of annular seal groove 12 is gone into to annular card, ring 14 is gone into to the surface bonding that circle 14 was gone into to annular card has asbestos pad 15, asbestos pad 15 itself has higher high temperature resistance, avoid high temperature asbestos to seal to produce the influence, the cooperation relation that ring card goes into between circle 14 and the annular seal groove 12 is clearance fit, the external diameter of sealed dish 13 is greater than the port external diameter of transmission pipe 1, sealed dish 13's terminal surface covers the terminal surface of transmission pipe 1 completely and contacts.

The working principle is as follows: the spray pipe 2 is inserted into the inner side of the arc-shaped sliding clamping groove 3 through the arc-shaped clamping block 4 until the end surface of the arc-shaped clamping block 4 butts against the inner side wall of the limit position of the arc-shaped sliding clamping groove 3, at the moment, the arc-shaped sealing block 11 is completely accommodated into the inner side of the accommodating groove 9, the star-shaped screws 6 above and below the transmission pipe 1 are rotated, so that the screw parts of the star-shaped screws 6 push the movable push rods 10 through the ball nuts 7, the movable push rods 10 push the corresponding arc-shaped sealing blocks 11 until the arc-shaped inner side wall of the arc-shaped sealing block 11 contacts and presses the outer wall of the spray pipe 2, so that the arc-shaped sealing blocks 11 butt and position the arc-shaped clamping block 4, at the moment, the annular clamping ring 14 is clamped into the annular sealing groove 12, the end surface of the sealing disc 13 contacts with the end surface of, so that the arc-shaped sealing block 11 is completely accommodated inside the accommodating groove 9 and the nozzle 2 is separated from the inner cavity of the transmission pipe 1.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A pipeline connecting mechanism for a burner nozzle comprises a transmission pipe and a spray pipe, and is characterized in that: the spray pipe is inserted into the inner side of the transmission pipe, the top and the bottom of the inner side of one end opening of the transmission pipe are respectively provided with an arc-shaped sliding clamping groove, the port part of the spray pipe is provided with an arc-shaped clamping block matched with the arc-shaped sliding clamping groove, the arc-shaped clamping blocks are positioned in the corresponding arc-shaped sliding clamping grooves, the top and the bottom of the transmission pipe are symmetrically provided with sealing frames, star-shaped screw rods are movably arranged on the two sealing frames respectively, penetrate through the corresponding sealing frames and are movably arranged on the inner sides of the sealing frames through miniature bearing seats respectively, ball nuts are in threaded connection on the two star-shaped screw rods respectively, the matching surfaces of the two sealing frames and the transmission pipe are respectively provided with through holes which are mutually communicated, sealing rings are arranged on the inner sides of the through holes, the inner sides of the two arc-shaped sliding clamping, the equal symmetrical movable push rod that installs on two ball nut, movable push rod's one end runs through corresponding through hole and extends to the inboard of accomodating the groove, the sealed piece of fixedly connected with arc is being located to two corresponding movable push rod and is accomodating between the one end of inslot side, the sealed piece of arc is located the corresponding inboard of accomodating the groove, the ring seal groove has been seted up to the port face of transmission pipe, install sealed dish on the spray tube, sealed dish has the ring card to go into the circle at the side fixed mounting that is close to the ring seal groove, the ring card goes into the inboard of ring seal groove, the surface bonding that the ring card goes into the circle has.

2. The pipe connection structure for a burner nozzle as set forth in claim 1, wherein: the arc-shaped clamping blocks are in clearance fit with the corresponding arc-shaped sliding clamping grooves, the arc-shaped clamping blocks are identical to the arc-shaped sliding clamping grooves in shape, and the two arc-shaped clamping blocks are symmetrically arranged around the center of the spray pipe.

3. The pipe connection structure for a burner nozzle as set forth in claim 1, wherein: the end face of the arc-shaped clamping block is flush with the end face of the spray pipe, and the length of the spray pipe inserted into the transmission pipe is equal to the transverse length of the arc-shaped sliding clamping groove.

4. The pipe connection structure for a burner nozzle as set forth in claim 1, wherein: the annular clamping ring is in clearance fit with the annular sealing groove, the outer diameter of the sealing disc is larger than the outer diameter of the port of the transmission pipe, and the end face of the sealing disc completely covers and contacts the end face of the transmission pipe.

5. The pipe connection structure for a burner nozzle as set forth in claim 1, wherein: the arc sealing blocks are in clearance fit with the corresponding inner side walls of the containing grooves, the arc inner side walls of the arc sealing blocks are in contact with the outer walls of the spray pipes, and the arc sealing blocks can be completely contained to the inner sides of the containing grooves when being contained.

6. The pipe connection structure for a burner nozzle as set forth in claim 1, wherein: the movable push rods on the two sides of the ball nut are symmetrically arranged about the ball nut, and the movable push rods are in movable sealing fit with the inner side wall of the through hole through the sealing rings.

7. The pipe connection structure for a burner nozzle as set forth in claim 1, wherein: the arc-shaped sealing blocks push the corresponding arc-shaped clamping blocks to be contacted.

8. The pipe connection structure for a burner nozzle as set forth in claim 1, wherein: the matching relationship between the outer wall of the spray pipe and the inner side wall of the conveying pipe is clearance fit.