CN201407451Y - Rotating compensator of heat net pipeline - Google Patents

Rotating compensator of heat net pipeline Download PDF

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Publication number
CN201407451Y
CN201407451Y CN2009200405252U CN200920040525U CN201407451Y CN 201407451 Y CN201407451 Y CN 201407451Y CN 2009200405252 U CN2009200405252 U CN 2009200405252U CN 200920040525 U CN200920040525 U CN 200920040525U CN 201407451 Y CN201407451 Y CN 201407451Y
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CN
China
Prior art keywords
graphite packing
packing
outer tube
ring
bulge loop
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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
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CN2009200405252U
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Chinese (zh)
Inventor
钱汉生
沐秀平
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Individual
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Individual
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Priority to CN2009200405252U priority Critical patent/CN201407451Y/en
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Publication of CN201407451Y publication Critical patent/CN201407451Y/en
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a rotating compensator of a heat net pipeline, which comprises an inner pipe, an outer pipe, a connecting pipe, a graphite packing and a compression flange. The improved points are as follows: a high-temperature medium sealing ring is arranged at one end of the graphite packing, a packing sealing ring is arranged at the other end, a labyrinth type gap is arranged at thematching position of the two sealing rings, and the contact surface between the two ends or one end of the graphite packing and a compression piece is conical. Being used in the heat net pipeline forcompensating circumferential or axial displacements of a system, the rotating compensator has the prominent advantages of leading good sealing property, needing no maintenance, further improving theusing property and prolonging the service life.

Description

Rotary compensator for heat supply network pipeline
Technical field
The utility model relates to a kind of compensator, the rotary compensator for heat supply network pipeline that the circumferential displacement of system and axial displacement is compensated especially for heat-net-pipeline.
Background technique
Be used for the heat-net-pipeline of industries such as power plant, chemical industry because medium temperature and the pressure carried are higher, the temperature difference is also very big simultaneously, expands with heat and contract with cold thereby produce, and causes the circumferential and axial distortion.In order to compensate the circumferential displacement and the axial displacement of pipe-line system, extensively adopt whirl compensator.Existing whirl compensator mainly is made of interior pipe, outer tube, graphite packing, the supported flange taking over and be contained between the inner and outer pipe, the difficult control in ubiquity matching part gap, the defective that graphite packing is easily leaked, influence compensator usability and working life, need regularly to add graphite and keep in repair.Chinese patent 2007201288011 discloses a kind of " precision compensator ", adopt precision-fit between its supported flange and the outer tube, with the coaxiality error of pipe in reducing with outer tube, pipe clamp is dead in avoiding, and the internal diameter of taking over equates to reduce the media flow loss, usability is had certain improvement with inner tube diameter, but still have following deficiency: 1, does not eliminate in the gap between supported flange and the interior pipe, still has the graphite packing leakage phenomenon; 2, high-temperature high-pressure medium can see through the gap of bulge loop side between the inner and outer pipe, causes washing away and to the corrosion contamination of supporting steel ball, influence the compensator usability graphite packing; 3, the surface of contact of bulge loop and graphite packing is the plane, can only influence the sealing reliability of filler to the filler axial pressure.
The model utility content
The technical problems to be solved in the utility model is the deficiency that overcomes existing whirl compensator, a kind of high sealing, non-maintaining is provided, and can further improves usability, the rotary compensator for heat supply network pipeline that increases the service life.
The technical solution of the utility model is: rotary compensator for heat supply network pipeline comprises interior pipe, outer tube and the adapter that links to each other with outer tube, between interior pipe and outer tube, graphite packing is housed, graphite packing is provided with bulge loop towards an end of taking over, the other end is provided with and the bolted supported flange of outer tube, its improvements are that described bulge loop is made of the outer bulge loop that is fixed in the internal projecting ring on the outer tube wall and be fixed on the outer wall of inner tube, internal projecting ring contacts with graphite packing, surface of contact is a conical surface, the larger diameter end of this conical surface is towards graphite packing, there is circular groove at the cylindrical position of outer bulge loop, be provided with the high temperature media seal ring in the circular groove, the end face that described supported flange is pressed to graphite packing is provided with the packing seal ring that is sealed and matched with outer wall of inner tube.
Further scheme is: be provided with spacer ring between described supported flange and the graphite packing, between packing seal ring and the spacer ring end clearance arranged, spacer ring and outer tube wall are adjacent to; Contacted of described supported flange or spacer ring and graphite packing are conical surface, and the larger diameter end of this conical surface is towards graphite packing; The internal diameter of described adapter is greater than inner tube diameter, and hole end surface has chamfering in taking over; Be provided with between described internal projecting ring and the outer bulge loop and interior pipe and the contacted steel ball of outer tube, be provided with the hammer-imitation type roller between supported flange and the interior pipe.
Adopt above technological scheme, the utility model has increased high temperature media seal ring and packing seal ring at two of graphite packing, play the effect of " secondary seal ", stop on the one hand high-temperature high-pressure medium to graphite packing wash away and to the corrosion contamination of steel ball, avoid the leakage of graphite packing on the other hand, can effectively improve the sealability of compensator, prolong its working life, reduce or avoid regularly adding the trouble of graphite and maintenance, reduce operating cost.Above-mentioned high temperature media seal ring and packing seal ring can adopt wear resisting cast iron spare, and periphery has opening, are convenient to assembling, and sealing is reliable.High temperature media seal ring and outer tube wall drive fit, packing seal ring and outer wall of inner tube drive fit, the gap is left in all the other cooperation places of two seal rings, and this gap becomes mazy type, neither influence the operation flexibility of compensator, help stoping the invasion of high-temperature high-pressure medium and the leakage of graphite packing again.In the utility model one of graphite packing preferably two and contacted of compressing member be conical surface, in compaction process, be subjected to simultaneously axially and lateral extrusion like this, make filler tightly embrace outer wall of inner tube, improve sealing reliability.Between supported flange and graphite packing, preferably be provided with spacer ring, can reduce the processing request of supported flange, be convenient to assembling, be beneficial to the sealing of filler.In addition, will take over internal diameter in the utility model and make greater than inner tube diameter, interior hole end surface has chamfering, when adapter produces unavoidable coaxiality deviation with interior pipe, can reduce the media flow loss; Adopt the hammer-imitation type roller between supported flange and the interior pipe, force-bearing situation is improved, all help improving the usability of compensator.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is an A place partial enlarged drawing among Fig. 1.
Embodiment
Referring to accompanying drawing, between interior pipe 1 and the outer tube 6 graphite packing 13 is housed, the surface of contact that is fixed in internal projecting ring 12 and graphite packing on the outer tube wall is a conical surface, there is circular groove at the cylindrical position of being fixed in the outer bulge loop 9 on the outer wall of inner tube, be provided with high temperature media seal ring 10 in the groove, this ring and outer tube wall drive fit, in, be provided with supporting steel ball 11 between the outer bulge loop, be provided with the spacer ring 14 that is adjacent to outer tube wall between supported flange 16 and the graphite packing 13, be provided with packing seal ring 15 in the circular groove of hole end surface in the supported flange, packing seal ring and outer wall of inner tube are sealed and matched, and and the end clearance arranged between the spacer ring, high temperature media seal ring and packing seal ring are all wear resisting cast iron spare, and periphery has opening, are provided with hammer-imitation type roller 17 between supported flange and the interior pipe, taking over 7 is connected with outer tube by transition circle 8, take over internal diameter and be slightly larger than inner tube diameter, supported flange is by bolt 5, nut 2, packing ring 4 is connected with outer tube, adds belleville spring 3 between nut and the packing ring.

Claims (5)

1, a kind of rotary compensator for heat supply network pipeline, comprise interior pipe, outer tube and the adapter that links to each other with outer tube, between interior pipe and outer tube, graphite packing is housed, graphite packing is provided with bulge loop towards an end of taking over, the other end is provided with and the bolted supported flange of outer tube, it is characterized in that described bulge loop is made of the outer bulge loop that is fixed in the internal projecting ring on the outer tube wall and be fixed on the outer wall of inner tube, internal projecting ring contacts with graphite packing, surface of contact is a conical surface, the larger diameter end of this conical surface is towards graphite packing, there is circular groove at the cylindrical position of outer bulge loop, be provided with the high temperature media seal ring in the circular groove, the end face that described supported flange is pressed to graphite packing is provided with the packing seal ring that is sealed and matched with outer wall of inner tube.
2, by the described rotary compensator for heat supply network pipeline of claim 1, it is characterized in that: be provided with spacer ring between described supported flange and the graphite packing, between packing seal ring and the spacer ring end clearance arranged, spacer ring and outer tube wall are adjacent to.
3, by claim 1 or 2 described rotary compensator for heat supply network pipeline, it is characterized in that: contacted of described supported flange or spacer ring and graphite packing are conical surface, and the larger diameter end of this conical surface is towards graphite packing.
4, by the described rotary compensator for heat supply network pipeline of claim 1, it is characterized in that: the internal diameter of described adapter is greater than inner tube diameter, and hole end surface has chamfering in taking over.
5, by the described rotary compensator for heat supply network pipeline of claim 1, it is characterized in that: be provided with between described internal projecting ring and the outer bulge loop and interior pipe and the contacted steel ball of outer tube, be provided with the hammer-imitation type roller between supported flange and the interior pipe.
CN2009200405252U 2009-04-28 2009-04-28 Rotating compensator of heat net pipeline Expired - Fee Related CN201407451Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200405252U CN201407451Y (en) 2009-04-28 2009-04-28 Rotating compensator of heat net pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200405252U CN201407451Y (en) 2009-04-28 2009-04-28 Rotating compensator of heat net pipeline

Publications (1)

Publication Number Publication Date
CN201407451Y true CN201407451Y (en) 2010-02-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009200405252U Expired - Fee Related CN201407451Y (en) 2009-04-28 2009-04-28 Rotating compensator of heat net pipeline

Country Status (1)

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CN (1) CN201407451Y (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101608726B (en) * 2009-08-06 2012-02-08 陈墅庚 Two-way multifunctional displacement absorption compensator
EP2489911A1 (en) * 2011-02-17 2012-08-22 STATS (UK) Limited Pipe sealing
CN103307280A (en) * 2012-03-13 2013-09-18 启东金匙环保科技有限公司 Self-aligning sealing device
CN103557389A (en) * 2013-11-14 2014-02-05 航天晨光股份有限公司 Rotary joint
CN112762256A (en) * 2021-01-21 2021-05-07 江苏丰禾机械制造股份有限公司 Safe explosion-proof self sealss rotary compensator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101608726B (en) * 2009-08-06 2012-02-08 陈墅庚 Two-way multifunctional displacement absorption compensator
EP2489911A1 (en) * 2011-02-17 2012-08-22 STATS (UK) Limited Pipe sealing
CN103307280A (en) * 2012-03-13 2013-09-18 启东金匙环保科技有限公司 Self-aligning sealing device
CN103307280B (en) * 2012-03-13 2016-02-03 启东金匙环保科技有限公司 Self-aligning seal arrangement
CN103557389A (en) * 2013-11-14 2014-02-05 航天晨光股份有限公司 Rotary joint
CN103557389B (en) * 2013-11-14 2015-07-01 航天晨光股份有限公司 Rotary joint
CN112762256A (en) * 2021-01-21 2021-05-07 江苏丰禾机械制造股份有限公司 Safe explosion-proof self sealss rotary compensator

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100217

Termination date: 20110428