CN204512730U - Vacuum heat-insulating pipe - Google Patents

Abstract

A kind of vacuum heat-insulating pipe, comprise mother's pipe of socket mutually and male pipe, described male pipe is connected by flange plate with female pipe, described public pipe is provided with pipe and public pipe outer tube in public pipe, described female pipe is provided with pipe in female pipe outer tube and female pipe, described public pipe is provided with insertion pipe, described female pipe is provided with the socketed pipe coordinated with insertion pipe, described socketed pipe is positioned at female pipe outer tube position, in described public affairs pipe, pipe extends public pipe outer tube, and insertion pipe is set on the interior pipe of public pipe, the described insertion pipe mouth of pipe is provided with black box, described socketed pipe is connected by black box with insertion pipe, described flange plate link position is provided with sealing configuration.By adopting technique scheme, pipeline by outer tube and interior pipe be arranged so that form cavity between outer tube and interior pipe, by the air in cavity is taken out, form low pressure vacuum environment, thus make to form vacuum heat-insulating layer between outer tube and interior pipe, be conducive to the transmission of the liquid of internal tube etc., and can not environment too much influence be subject in transport process, male pipe and female pipe arrange socketed pipe and insertion pipe can make the linkage section of male pipe and female pipe increase, thus be conducive to the improvement of sealing, and be difficult to cause leakage, outside preliminary sealing individual with interior Guan Youyi can be made by arranging sealing configuration at male pipe and female pipe link position, outside impurity can not be made to enter, arranging black box in the termination of insertion pipe and socketed pipe can make interior pipe strengthen with outside sealing thus form a buffer cavity, thus alleviate its consequence revealed.

Description

Vacuum heat-insulating pipe

Technical field

The utility model relates to a kind of pipeline, and more particularly, it relates to a kind of vacuum heat-insulating pipe.

Background technique

This patent is mainly used in the connection between the vacuum heat-insulated pipe pipeline section of conveying cryogenic liquid (temperature is generally lower than-100 DEG C), by the pipe-line system by cryogenic insulating pipeline section connection composition transmission deep cooling medium.Owing to carrying the particularity of deep cooling medium, propose very high requirement for conveying pipeline section coupling piece: the sealability should guaranteeing connecting joint place, namely fed sheet of a media can not leak through coupling piece; Also to maintain good heat-insulating property.Consider the applied environment of delivery pipeline system in addition, relate to installation, safeguard and because of many situations such as dismountings in particular cases, therefore the design synthesis of vacuum heat-insulated pipe coupling piece is thought of as: good sealability, good heat-insulating property, it is convenient to install, convenient disassembly.

In prior art, vacuum heat-insulated pipe inserting type coupling piece plug is divided into tool joint pin and female joint, and two joints are the soldered end needing two pipelines connect respectively, and both are connected and form pipeline section coupling piece, and joint sealing face adopts seal ring sealing.This joint, heat is seriously leaked in connector assembly joint, heat-insulating property extreme difference; The sealability extreme difference of connecting joint, when temperature is changed to deep cooling by normal temperature, cannot reliably seal.

Model utility content

For the deficiency that prior art exists, the purpose of this utility model is the vacuum heat-insulating pipe providing a kind of joint location good seal performance.

For achieving the above object, the utility model provides following technological scheme: a kind of vacuum heat-insulating pipe, comprise mother's pipe of socket mutually and male pipe, described male pipe is connected by flange plate with female pipe, described public pipe is provided with pipe and public pipe outer tube in public pipe, described female pipe is provided with pipe in female pipe outer tube and female pipe, described public pipe is provided with insertion pipe, described female pipe is provided with the socketed pipe coordinated with insertion pipe, described socketed pipe is positioned at female pipe outer tube position, in described public affairs pipe, pipe extends public pipe outer tube, and insertion pipe is set on the interior pipe of public pipe, the described insertion pipe mouth of pipe is provided with black box, described socketed pipe is connected by black box with insertion pipe, described flange plate link position is provided with sealing configuration.

By adopting technique scheme, pipeline by outer tube and interior pipe be arranged so that form cavity between outer tube and interior pipe, by the air in cavity is taken out, form low pressure vacuum environment, thus make to form vacuum heat-insulating layer between outer tube and interior pipe, be conducive to the transmission of the liquid of internal tube etc., and can not environment too much influence be subject in transport process, male pipe and female pipe arrange socketed pipe and insertion pipe can make the linkage section of male pipe and female pipe increase, thus be conducive to the improvement of sealing, and be difficult to cause leakage, outside preliminary sealing individual with interior Guan Youyi can be made by arranging sealing configuration at male pipe and female pipe link position, outside impurity can not be made to enter, arranging black box in the termination of insertion pipe and socketed pipe can make interior pipe strengthen with outside sealing thus form a buffer cavity, thus alleviate its consequence revealed.

The utility model is set to further: described black box comprise the sealing mother set be arranged in socketed pipe be arranged on insertion pipe sealing public affairs cover, described sealing mother set one end is connected with socketed pipe, the other end and mother manage interior pipe and are connected, and described sealing mother set and socketed pipe connecting end are provided with position limit cycle; Described sealing public affairs cover lateral ends is connected with insertion pipe, and the public public affairs that are set in of sealing are managed on interior pipe, described sealing public affairs cover outside is provided with seal ring A, the public flange collar being arranged with restriction seal ring A and sliding along interior pipe direction of described sealing, described seal ring A one end abuts with flange collar, and the other end abuts with position limit cycle.

By adopting technique scheme, the described public sleeve pipe of sealing that arranges can make sleeve pipe easily seal when coordinating with sealing mother set pipe, single employing pipeline and stuffing box gland carry out difficult sealing and seal to regulate, and carry out difficult sealing to install by a seal ring, coordinated by two stuffing box glands, installation is made to become easy, and good sealing effect, and by making its sealing effect better to the conflict of seal ring A.

The utility model is set to further: described flange collar is provided with projection towards the side of sealing mother set, and described seal ring is provided with the groove with protrusions match.

By adopting technique scheme, projection is set and groove can prevent seal ring from installation process, making its position change, thus makes its cooperation not in place, thus affect its sealing effect.

The utility model is set to further: described sealing configuration comprises the first docking ring of the flange plate position arranging male pipe and is arranged on second docking ring of flange plate position of female pipe, first, second docking ring described is conflicted and is connected, the face that described first docking ring is relative with the second docking ring is provided with groove ring, and the face that described second docking ring is relative with the first docking ring is provided with the projection circle matched with groove ring.

By adopting technique scheme, being conflicted by first, second docking ring and tentatively sealing, form sealing flange by groove ring and protruding circle, strengthen its sealing effect.

The utility model is set to further: be embedded with seal ring B in described groove ring.

By adopting technique scheme, in groove ring, pinching seal ring, the gap between groove ring and protruding circle can be made to be filled by seal ring, thus strengthen its sealing effect.

Accompanying drawing explanation

Fig. 1 is the sectional view of the utility model vacuum heat-insulating pipe embodiment;

Fig. 2 is A place enlarged view in Fig. 1;

Fig. 3 is B place enlarged view in Fig. 1.

Reference character: 1, female pipe; 11, female pipe outer tube; 12, female pipe outer tube; 13, socketed pipe; 131, mother set is sealed; 1311, position limit cycle; 14, the first docking ring; 141, protruding circle; 2, public pipe; 21, public pipe outer tube; 22, pipe in public pipe; 23, insertion pipe; 231, the public cover of sealing; 2311, flange collar; 2312, projection; 232, seal ring A; 2321, groove; 24, the second docking ring; 241, groove ring; 25, seal ring B.

Embodiment

Referring to figs. 1 through Fig. 3, the utility model vacuum heat-insulating pipe embodiment is described further.

As shown in Figure 1 to Figure 3, a kind of vacuum heat-insulating pipe, comprise female pipe 1 and the male pipe 2 of socket mutually, described male pipe 2 is connected by flange plate with female pipe 1, described public pipe 2 is provided with pipe 22 and public pipe outer tube 21 in public pipe, described female pipe 1 is provided with pipe 11 in female pipe outer tube 12 and female pipe, described public pipe 2 is provided with insertion pipe 23, described female pipe 1 is provided with the socketed pipe 13 coordinated with insertion pipe 23, described socketed pipe 13 is positioned at female pipe outer tube 12 interior location, in described public affairs pipe, pipe 22 extends public pipe outer tube 21, and insertion pipe 23 is set on the interior pipe 22 of public pipe, described insertion pipe 23 mouth of pipe is provided with black box, described socketed pipe 13 is connected by black box with insertion pipe 23, described flange plate link position is provided with sealing configuration.

Pipeline by outer tube and interior pipe be arranged so that form cavity between outer tube and interior pipe, by the air in cavity is taken out, form low pressure vacuum environment, thus make to form vacuum heat-insulating layer between outer tube and interior pipe, be conducive to the transmission of the liquid of internal tube etc., and can not environment too much influence be subject in transport process, male pipe 2 and female pipe 1 arrange socketed pipe 13 and insertion pipe 23 can make the linkage section of male pipe 2 and female pipe 1 increase, thus be conducive to the improvement of sealing, and be difficult to cause leakage, outside preliminary sealing individual with interior Guan Youyi can be made by arranging sealing configuration at male pipe 2 and female pipe 1 link position, outside impurity can not be made to enter, arranging black box in the termination of insertion pipe 23 and socketed pipe 13 can make interior pipe strengthen with outside sealing thus form a buffer cavity, thus alleviate its consequence revealed.

Described black box comprise the sealing mother set 131 be arranged in socketed pipe 13 be arranged on insertion pipe 23 sealing public affairs cover 231, described sealing mother set 131 one end is connected with socketed pipe 13, the other end and mother manage interior pipe 11 and are connected, and described sealing mother set 131 is provided with position limit cycle 1311 with socketed pipe 13 connecting end; Described sealing public affairs cover 231 lateral ends are connected with insertion pipe 23, and the public cover 231 of sealing to be set in public pipe on pipe 22, seal ring A232 is provided with outside described sealing public affairs cover 231, the public cover 231 of described sealing is provided with the flange collar 2311 that restriction seal ring A232 slides along interior pipe direction, described seal ring A232 one end abuts with flange collar 2311, and the other end abuts with position limit cycle 1311; Described flange collar 2311 is provided with projection 2312 towards the side of sealing mother set 131, and described seal ring is provided with the groove 2321 coordinated with projection 2312.

Described sealing public cover 231 pipe is set and sealing mother set 131 pipe can make sleeve pipe easily seal when coordinating, single employing pipeline and stuffing box gland carry out difficult sealing and seal to regulate, and carry out difficult sealing to install by a seal ring, coordinated by two stuffing box glands, installation is made to become easy, and good sealing effect, and by making its sealing effect better to the conflict of seal ring A232; Projection 2312 is set and groove 2321 can prevent seal ring from installation process, making its position change, thus makes its cooperation not in place, thus affect its sealing effect.

Described sealing configuration comprises the first docking ring 14 of the flange plate position arranging male pipe 2 and is arranged on second docking ring 24 of flange plate position of female pipe 1, first, second docking ring 14,24 described is conflicted and is connected, the face that described first docking ring 14 is relative with the second docking ring 24 is provided with groove ring 241, and the face that described second docking ring 24 is relative with the first docking ring 14 is provided with the projection circle 141 matched with groove ring 241; Seal ring B25 is embedded with in described groove ring 241.

Conflicted by first, second docking ring 14,24 and tentatively seal, form sealing flange by groove ring 241 and protruding circle 141, strengthen its sealing effect; In groove ring 241, pinch seal ring, the gap between groove ring 241 and protruding circle 141 can be made to be filled by seal ring, thus strengthen its sealing effect.

Preferably, the breeze way that described socketed pipe 13 and insertion pipe 23 are formed can this seal ring, thus whole sealing grade is improved, thus makes the sealing effect of whole link position better.

The above makes preferred implementation of the present utility model, and under not departing from the prerequisite of the utility model principle for the person of ordinary skill of the art, can also make some modification and improvement, these also should be considered as protection domain of the present utility model.

Claims (5)

1. a vacuum heat-insulating pipe, comprise mother's pipe of socket mutually and male pipe, described male pipe is connected by flange plate with female pipe, described public pipe is provided with pipe and public pipe outer tube in public pipe, described female pipe is provided with pipe in female pipe outer tube and female pipe, it is characterized in that: described public pipe is provided with insertion pipe, described female pipe is provided with the socketed pipe coordinated with insertion pipe, described socketed pipe is positioned at female pipe outer tube position, in described public affairs pipe, pipe extends public pipe outer tube, and insertion pipe is set on the interior pipe of public pipe, the described insertion pipe mouth of pipe is provided with black box, described socketed pipe is connected by black box with insertion pipe, described flange plate link position is provided with sealing configuration.

2. vacuum heat-insulating pipe according to claim 1, it is characterized in that: described black box comprise the sealing mother set be arranged in socketed pipe be arranged on insertion pipe sealing public affairs cover, described sealing mother set one end is connected with socketed pipe, the other end and mother manage interior pipe and are connected, and described sealing mother set and socketed pipe connecting end are provided with position limit cycle; Described sealing public affairs cover lateral ends is connected with insertion pipe, and the public public affairs that are set in of sealing are managed on interior pipe, described sealing public affairs cover outside is provided with seal ring A, the public flange collar being arranged with restriction seal ring A and sliding along interior pipe direction of described sealing, described seal ring A one end abuts with flange collar, and the other end abuts with position limit cycle.

3. vacuum heat-insulating pipe according to claim 2, is characterized in that: described flange collar is provided with projection towards the side of sealing mother set, and described seal ring is provided with the groove with protrusions match.

4. vacuum heat-insulating pipe according to claim 1, it is characterized in that: described sealing configuration comprises the first docking ring of the flange plate position arranging male pipe and is arranged on second docking ring of flange plate position of female pipe, first, second docking ring described is conflicted and is connected, the face that described first docking ring is relative with the second docking ring is provided with groove ring, and the face that described second docking ring is relative with the first docking ring is provided with the projection circle matched with groove ring.

5. vacuum heat-insulating pipe according to claim 4, is characterized in that: be embedded with seal ring B in described groove ring.