CN204879189U - Direct -burried direct current does not have thrust compensator - Google Patents
Direct -burried direct current does not have thrust compensator Download PDFInfo
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- CN204879189U CN204879189U CN201520493286.1U CN201520493286U CN204879189U CN 204879189 U CN204879189 U CN 204879189U CN 201520493286 U CN201520493286 U CN 201520493286U CN 204879189 U CN204879189 U CN 204879189U
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Abstract
The utility model provides a direct -burried direct current does not have thrust compensator, including flexible core pipe and outer tube, weld intrinsic cover on the lateral wall of flexible core pipe and locate the closed loop shape cylinder of flexible core outside of tubes, seal up the cooperation through the 2nd sealing filler structure between closed loop shape cylinder and the outer tube, annular steam chest has between the inside wall of closed loop shape cylinder and the lateral wall of flexible core pipe, the annular steam chest is in between a sealing filler structure and the 2nd sealing filler structure, a plurality of air vent has been seted up to flexible core pipe, each air vent winds the distribution along the circumference direction spacer ring of flexible core pipe, the cross sectional area of annular steam chest, the cross sectional area of flexible core pipe orifice and the cross sectional area's of each air vent total homogeneous phase etc. Compared with the prior art, it can make pressure medium offset, can not use the fixing support at compensator both ends again on, make fixing support need not to bear work pressure medium, the preparation material of the fixed bolster that can significantly reduce makes the use cost of compensator low.
Description
Technical field
The utility model relates to a kind of compensator, particularly a kind of sleeve expansion joint.
Background technique
Sleeve compensator claims tubular type slip joint, is the compensation device of hot fluid pipeline, is mainly used in the axial thermal expansion displacement absorption compensation that rectilinear duct additionally arranges rear appearance, is applicable to the media such as hot water, steam, grease.This sleeve compensator has plain edition and bidirectional compensating type, this bidirectional compensating type and medium-sized difference are to eliminate the axial force of pressure medium to fixed bearing, namely pressure medium can produce the contrary axial pressure in equal and opposite in direction, direction to pipeline, if when now two axial pressures cannot balance, two axial pressures are just respectively by the fixed bearing bearing of pipe ends, fixed bearing must be done very large, outer tube can be resisted stubbornly and can't injure outer tube, thus the cost of material of fixed bearing is increased undoubtedly, and then add the user cost of compensator.
In view of this, inventor furthers investigate the problems referred to above, then has this case to produce.
Model utility content
The purpose of this utility model is to provide a kind of direct-burried direct current thrustless compensator, and it can save the material of fixed bearing, and user cost is low, and brings convenience to the installation of compensator.
In order to achieve the above object, the utility model adopts such technological scheme:
A kind of direct-burried direct current thrustless compensator, comprise telescopic core pipe and outer tube, this telescopic core pipe movable set is in this outer tube, and the axial first end end of this telescopic core pipe is stretched out outside outer tube, is sealed and matched between the axial first end outer side wall of this telescopic core pipe and the madial wall of outer tube by the first stuffing box packing structure, on the outer side wall of above-mentioned telescopic core pipe, solid welding has the closed-loop shaped cylinder be sheathed on outside telescopic core pipe, and be sealed and matched by the second stuffing box packing structure between above-mentioned closed-loop shaped cylinder outer side wall and the madial wall of above-mentioned outer tube, between the madial wall of above-mentioned closed-loop shaped cylinder and the outer side wall of above-mentioned telescopic core pipe, there is annular steam chest, above-mentioned annular steam chest is between above-mentioned first stuffing box packing structure and above-mentioned second stuffing box packing structure, above-mentioned telescopic core pipe is positioned at the vent that this annular steam chest place offers through annular steam chest and telescopic core pipe, above-mentioned vent is provided with several, each vent along the circumferential direction spacer ring of telescopic core pipe around distribution, the cross sectional area of above-mentioned annular steam chest, the summation of the cross sectional area of above-mentioned telescopic core pipe orifice and the cross sectional area of each vent is all equal.
Above-mentioned outer tube has extension diameter section and is in the undergauge section at expansion tube two ends, above-mentioned closed-loop shaped cylinder is in above-mentioned extension diameter section, above-mentioned first stuffing box packing vibrational power flow is at the undergauge section place of outer tube right-hand member, the madial wall of above-mentioned outer tube is convexly equipped with the closed-loop shaped guiding bulge loop be in outside above-mentioned closed-loop shaped cylinder, above-mentioned closed-loop shaped guiding bulge loop offers its first end and passes to closed-loop shaped cylinder outer side wall place, second end passes to the filler passage outside outer tube, fill out in above-mentioned filler passage and be filled with stuffing box packing, second end port of above-mentioned filler passage is provided with the removable sealing cover of stuffing box packing passage, above-mentioned removable sealing cover, stuffing box packing and filler passage form above-mentioned second stuffing box packing structure.
The outer side wall of above-mentioned telescopic core pipe is convexly equipped with closed-loop shaped connecting ring, and above-mentioned closed-loop shaped connecting ring is connected with the solid welding of above-mentioned closed-loop shaped cylinder.
Have the dust ring be flush-mounted in outside telescopic core pipe between the axial first end of above-mentioned telescopic core pipe and above-mentioned outer tube, above-mentioned first stuffing box packing structure is between above-mentioned annular steam chest and above-mentioned dust ring.
After adopting technique scheme, direct-burried direct current thrustless compensator of the present utility model, annular steam chest is made to be seal structure by the first stuffing box packing structure and the second stuffing box packing structure, this annular steam chest is made to have two annular compression faces, first closed-loop shaped cylinder is towards the annular inner wall face of telescopic core pipe outer side wall, and another is the annular outboard face that telescopic core pipe is positioned at vent place, like this, utilize the Pascal in fluid mechanics theoretical, operationally flowing medium can flow in the annular steam chest of sealing through each vent, make pressure medium same purpose in annular steam chest, and the cross sectional area of telescopic core pipe orifice, the cross sectional area of annular steam chest is all identical with the cross sectional area of each vent, then annular steam chest place two annular compression faces pressure can be equal with the axial pressure at telescopic core pipe cross-section area two ends, and direction is contrary, effect point-blank, pressure medium is cancelled, can not remake use compensator two ends fixed bearing on, make fixed bearing without the need to bearing working medium pressure, belong to off-load formula bearing, support bracket fastened making material can be greatly reduced, make the user cost of compensator low, and bring convenience to a certain extent the installation of compensator.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure:
Telescopic core pipe 1 closed-loop shaped cylinder 11
Closed-loop shaped connecting ring 12 vent 13
Outer tube 2 closed-loop shaped guiding bulge loop 21
Gland 3 band of column 31
The removable sealing cover 5 of removable sealing cover 4
Dust ring 6 stuffing box packing 100
The annular steam chest 300 of stuffing box packing 200
Embodiment
In order to explain the technical solution of the utility model further, be described in detail below by specific embodiment.
Direct-burried direct current thrustless compensator of the present utility model, as shown in Figure 1, comprise telescopic core pipe 1 and outer tube 2, this telescopic core pipe 1 movable set is in this outer tube 2, and the axial first end end of this telescopic core pipe 1 is stretched out outside outer tube 2, is sealed and matched between the axial first end outer side wall of this telescopic core pipe 1 and the madial wall of outer tube 2 by the first stuffing box packing structure, particularly: with the axial two ends of telescopic core pipe 1 for two ends, left and right, the one end of stretching out outside outer tube 2 is right-hand member, this outer tube 2 has extension diameter section and the corresponding left side being in two ends, expansion tube left and right respectively, right undergauge section, the left end of this telescopic core pipe 1 is in extension diameter section, the right-hand member of telescopic core pipe is in right undergauge section, intrinsic drive fit of locking the right-hand member end face of this right undergauge section stretches into the Gland 3 between right undergauge section and telescopic core pipe, the madial wall of this right undergauge section, the right-hand member end face of extension diameter section, the outer side wall of telescopic core pipe and Gland 3 position stretched in right undergauge section and telescopic core pipe can surround a stuffing box packing chamber, sealing packing cavity indoor are filled out and are filled with stuffing box packing 100, the outer side wall of this right reducing pipe offers the filler passage passing to stuffing box packing chamber, this right reducing pipe is provided with the removable sealing cover 4 of this filler passage of sealing, this removable sealing cover 4, the first stuffing box packing structure described in stuffing box packing and stuffing box packing chamber are formed, this the first stuffing box packing structure is known technology, be not repeated at this.
Direct-burried direct current thrustless compensator of the present utility model, on the left end outer side wall of its telescopic core pipe 1, solid welding has the closed-loop shaped cylinder 11 be sheathed on outside telescopic core pipe 1, this closed loop cylinder 11 is in the extension diameter section of outer tube 2, the outer side wall of this telescopic core pipe 1 is convexly equipped with closed-loop shaped connecting ring 12, this closed-loop shaped connecting ring 12 is connected with closed-loop shaped cylinder 11 solid welding, make to be formed with an annular space between telescopic core pipe 1 and closed-loop shaped cylinder 11 by this closed-loop shaped connecting ring 12, be sealed and matched by the second stuffing box packing structure between this closed-loop shaped cylinder 11 outer side wall and madial wall of outer tube 2, preferably: the madial wall that outer tube 2 is positioned at extension diameter section place is convexly equipped with the closed-loop shaped guiding bulge loop 21 be in outside closed-loop shaped cylinder 11, closed-loop shaped guiding bulge loop 21 offers its first end and passes to closed-loop shaped cylinder 11 outer side wall place, second end passes to the filler passage (not shown) outside outer tube 2, fill out in this filler passage and be filled with stuffing box packing 200, second end port of filler passage is provided with the removable sealing cover 5 of stuffing box packing passage, this removable sealing cover 5, the second stuffing box packing structure described in stuffing box packing 200 and filler passage are formed.
Between the madial wall of described closed-loop shaped cylinder 11 and the outer side wall of telescopic core pipe 1, there is annular steam chest 300, telescopic core pipe 1 is positioned at the vent 13 that this annular steam chest 300 place offers through annular steam chest 300 and telescopic core pipe 1, vent 13 is provided with several, each vent 13 is along the circumferential direction spacer ring of telescopic core pipe 1 around distribution, and the summation of the cross sectional area of annular steam chest 300, the cross sectional area of telescopic core pipe 1 endoporus and the cross sectional area of each vent 13 is all equal.
Direct-burried direct current thrustless compensator of the present utility model, make annular steam chest 300 in seal structure by the first stuffing box packing structure and the second stuffing box packing structure, this annular steam chest 300 is made to have two annular compression faces, first closed-loop shaped cylinder 11 is towards the annular inner wall face of telescopic core pipe 1 outer side wall, and another is the annular outboard face that telescopic core pipe 1 is positioned at vent 13 place; Like this, utilize the Pascal in fluid mechanics theoretical, operationally flowing medium can flow in the annular steam chest 300 of sealing through each vent 13, make pressure medium same purpose meeting in annular steam chest 300, and the cross sectional area of telescopic core pipe 1 endoporus, the cross sectional area of annular steam chest 300 are all identical with the cross sectional area of each vent 13, then, the two annular compression faces at annular steam chest 300 place pressure can be equal with the axial pressure at telescopic core pipe 1 cross-section area two ends, i.e. F
1=F
1', F
2=F
2', and direction is contrary, effect point-blank, pressure medium is cancelled, can not remake use compensator two ends fixed bearing on, make fixed bearing without the need to bearing working medium pressure, belong to off-load formula bearing, support bracket fastened making material can be greatly reduced, make the user cost of compensator low, and bring convenience to a certain extent the installation of compensator.
In the utility model, on the end face of this Gland 3, solid welding has the band of column 31 be sheathed on outside telescopic core pipe 1, the dust ring 6 be sheathed on outside telescopic core pipe 1 is embedded with between this band of column 31 and telescopic core pipe 1, this dust ring 6 is utilized to play dust-proof effect, in case stuffing box packing 100 is affected sealing effect by extraneous contamination by dust.
Product form of the present utility model is not limited to this case diagram and embodiment, and anyone carries out suitable change or the modification of similar thinking to it, all should be considered as not departing from patent category of the present utility model.
Claims (4)
1. a direct-burried direct current thrustless compensator, comprise telescopic core pipe and outer tube, this telescopic core pipe movable set is in this outer tube, and the axial first end end of this telescopic core pipe is stretched out outside outer tube, is sealed and matched between the axial first end outer side wall of this telescopic core pipe and the madial wall of outer tube by the first stuffing box packing structure, it is characterized in that: on the outer side wall of above-mentioned telescopic core pipe, solid welding has the closed-loop shaped cylinder be sheathed on outside telescopic core pipe, and be sealed and matched by the second stuffing box packing structure between above-mentioned closed-loop shaped cylinder outer side wall and the madial wall of above-mentioned outer tube, between the madial wall of above-mentioned closed-loop shaped cylinder and the outer side wall of above-mentioned telescopic core pipe, there is annular steam chest, above-mentioned annular steam chest is between above-mentioned first stuffing box packing structure and above-mentioned second stuffing box packing structure, above-mentioned telescopic core pipe is positioned at the vent that this annular steam chest place offers through annular steam chest and telescopic core pipe, above-mentioned vent is provided with several, each vent along the circumferential direction spacer ring of telescopic core pipe around distribution, the cross sectional area of above-mentioned annular steam chest, the summation of the cross sectional area of above-mentioned telescopic core pipe orifice and the cross sectional area of each vent is all equal.
2. direct-burried direct current thrustless compensator according to claim 1, it is characterized in that: above-mentioned outer tube has extension diameter section and is in the undergauge section at expansion tube two ends, above-mentioned closed-loop shaped cylinder is in above-mentioned extension diameter section, above-mentioned first stuffing box packing vibrational power flow is at the undergauge section place of outer tube right-hand member, the madial wall of above-mentioned outer tube is convexly equipped with the closed-loop shaped guiding bulge loop be in outside above-mentioned closed-loop shaped cylinder, above-mentioned closed-loop shaped guiding bulge loop offers its first end and passes to closed-loop shaped cylinder outer side wall place, second end passes to the filler passage outside outer tube, fill out in above-mentioned filler passage and be filled with stuffing box packing, second end port of above-mentioned filler passage is provided with the removable sealing cover of stuffing box packing passage, above-mentioned removable sealing cover, stuffing box packing and filler passage form above-mentioned second stuffing box packing structure.
3. direct-burried direct current thrustless compensator according to claim 1, it is characterized in that: the outer side wall of above-mentioned telescopic core pipe is convexly equipped with closed-loop shaped connecting ring, above-mentioned closed-loop shaped connecting ring is connected with the solid welding of above-mentioned closed-loop shaped cylinder.
4. direct-burried direct current thrustless compensator according to claim 1, it is characterized in that: have the dust ring be flush-mounted in outside telescopic core pipe between the axial first end of above-mentioned telescopic core pipe and above-mentioned outer tube, above-mentioned first stuffing box packing structure is between above-mentioned annular steam chest and above-mentioned dust ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520493286.1U CN204879189U (en) | 2015-07-09 | 2015-07-09 | Direct -burried direct current does not have thrust compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520493286.1U CN204879189U (en) | 2015-07-09 | 2015-07-09 | Direct -burried direct current does not have thrust compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204879189U true CN204879189U (en) | 2015-12-16 |
Family
ID=54823561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520493286.1U Expired - Fee Related CN204879189U (en) | 2015-07-09 | 2015-07-09 | Direct -burried direct current does not have thrust compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204879189U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465530A (en) * | 2016-01-18 | 2016-04-06 | 航天晨光股份有限公司 | Pressure balance type sleeve compensator |
| CN105570581A (en) * | 2016-03-01 | 2016-05-11 | 上海冠龙阀门机械有限公司 | Double-ball compensation connector capable of balancing axial force |
| CN110107761A (en) * | 2019-06-05 | 2019-08-09 | 天津市合润科技有限责任公司 | The telescopic device with self-compensating function on conveyance conduit |
-
2015
- 2015-07-09 CN CN201520493286.1U patent/CN204879189U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465530A (en) * | 2016-01-18 | 2016-04-06 | 航天晨光股份有限公司 | Pressure balance type sleeve compensator |
| CN105570581A (en) * | 2016-03-01 | 2016-05-11 | 上海冠龙阀门机械有限公司 | Double-ball compensation connector capable of balancing axial force |
| CN110107761A (en) * | 2019-06-05 | 2019-08-09 | 天津市合润科技有限责任公司 | The telescopic device with self-compensating function on conveyance conduit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190124 Address after: 362000 No. 1100 Lianhua Road, Taoyuan Industrial Zone, Fengzhou Town, Nanan City, Quanzhou City, Fujian Province Patentee after: Fujian revolves Science and Technology Co., Ltd. Address before: 362000 No. 89 Shuduqishu Road, Jiangnan, Licheng District, Quanzhou City, Fujian Province Patentee before: Quanzhou Yujie Rotary Joints Metal Hose Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20210709 |