CN2530126Y

CN2530126Y - Two-way extension filling pipeline compensator

Info

Publication number: CN2530126Y
Application number: CN 01209904
Authority: CN
Inventors: 文长朴; 文兴; 陈谦
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-20
Filing date: 2001-02-20
Publication date: 2003-01-08
Anticipated expiration: 2011-02-20

Abstract

The utility model discloses an inflatable pipeline compensator that is telescopic at both ends, comprising a casing, two telescopic pipes, as well as a fixing ring, a spring propeller, two seal fillers and a seal ring which are arranged in order between the telescopic pipes, wherein two injection holes are arranged on the casing, corresponding to the positions of the seal fillers; two pressure relief chambers are arranged inside the ends of the casing, and a plurality of pressure relief holes are evenly distributed on the side walls of the pressure relief chambers; two alarm holes are also arranged on the casing; both the telescopic pipes are positioned inside the casing. By applying inflatable seal fillers, the utility model shows excellent liquidity and high elasticity and can form a complete closed loop under pressure; besides, inflatable fillers of various kinds are available according to temperatures ranging from a low temperature to 600 DEG. Therefore the utility model can be widely applied to various pipelines for transmission of water, oil or natural gas etc.

Description

Bi-directional expansion can be annotated the formula pipeline compensator

The utility model is a kind of compensator device that can cause change in displacement to pipeline because of expanding with heat and contract with cold, and particularly a kind of bi-directional expansion can be annotated the formula sleeve and fill device.

Usually, all kinds of compensator device that adopt in the pipeline, leakage is in various degree in use all arranged, especially telescopic, the utility model patent communique disclosed once that a kind of notification number is 2238368, application number is 96202612.3 and is called the patent of " two way sealed bushing type pipeline telescopic compensator ".Mainly by comprising inner sleeve, outer sleeve, being arranged on the seal ring at sealed letter place between the inside and outside sleeve pipe, be used to seal the sealing gland of means of press seals material, its sealed letter place is equipped with V-type expanding ring that twice become with the polytetrafluoroethylene material and the flexible graphite material that is used with the V-arrangement expansive phase at least, the wedge type seal ring of making, it mainly is that cooperation by the cambridge ring of the V-arrangement expanding ring of polytetrafluoroethylene and graphite material seals.The using scope of polytetrafluoroethylene limits (180 ℃-250 ℃) and graphite material to some extent and is suitable for-200 ℃-600 ℃ and differs greatly polytetrafluoroethylene sealed expansion ring when the pipeline working medium exceeds 250 ℃ and lose seal action in can putting into practice.Then compensator occur to leak, and can carry out maintain and replace filler or adjustment after must stopping production, and when the line transportation medium by the blind plate thrust of pressure medium generation, can make support of pipelines produce corresponding thrust and support is destroyed.

The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, provide a kind of bi-directional expansion can annotate the formula pipeline compensator, it not only can be equivalent to the ability of two unidirectional compensators, and good seal, be difficult for leaking, but blind plate thrust is little and have caution hole reminds people to reveal the position, and presses, is with under the temperature state and carries out leakage eliminating easily at the band that do not stop production.

For achieving the above object, bi-directional expansion of the present utility model can be annotated the formula pipeline compensator by being provided with capping, caution hole, spring-advance device, stuffing box packing and seal ring between outer sleeve and the telescopic pipe successively, and the spring-advance device is made of 9-60 spring.The outer sleeve of sealed material filling bin corresponding position is provided with 3-16 injection orifice, and pressure head is arranged on the injection orifice.The seal gease of graphite packing and heatproof is adopted in stuffing box packing, the filler that the formula the annotated stuffing box packing at middle part is anti-middle high temperature has solved the low problem of polytetrafluoroethylene serviceability temperature, band is pressed, the band temperature state injects stuffing box packing down and carries out leakage eliminating and can not stop production by injection orifice, and be provided with the pressure release storehouse at flexible pipe end, be connected a uniform 3-16 relief hole on the pressure release storehouse sidewall of flexible pipe end, and pressure release storehouse sidewall plays the anticreep effect of telescopic pipe.Reduce deviation when it can make telescopic pipe keep axial displacement owing to the pressure release storehouse that is provided with, the thrust of blind plate has been reduced in the eddy current reverse direction flow pressure release storehouse that blind plate is produced, again balance to the load thrust of support of pipelines, pressure medium is acted on strengthened sweet envelope on the seal ring again.Two telescopic pipe positions are relative, and are installed in the outer sleeve.

The utility model adopts can annotate the formula stuffing box packing, because of it has good flowability, high elasticity to form a complete sealing loop under pressure, and the filler annotated of various models according to needing, temperature arranged, ℃ available from low temperature to 600, so this bi-directional expansion can be annotated the formula sleeve expansion joint, can be widely used in the various pipelines such as water delivery, oil transportation, gas transmission.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is that the utility model bi-directional expansion can be annotated formula pipeline compensator embodiment view.

In the present embodiment, pressure release storehouse sidewall 11 be welded on telescopic pipe 1 and 1 ' an end, telescopic pipe 1 is relative with telescopic pipe 1 ' position, and is installed in the outer sleeve 2.On outer sleeve 2, be provided with caution hole 15, capping 14 is by being bolted on the outer sleeve, spring propulsion 5 mainly is made up of 24 springs, and spring adjusting screw 4 serves as to rely on to be supported on the retaining ring 3 with retaining ring 3, and what be provided with between spring propulsion 5 and the seal ring 9 is stuffing box packing 8.Wherein, the middle part adopt for can annotate formula stuffing box packing 8, both sides adopt for graphite packing and modified graphite 12 and high temperature grease be main heatproof seal gease 6 and can annotate formula stuffing box packing 8 pairing outer sleeves and be provided with 3 injection orifices 7, injection orifice 7 is provided with can annotate pressure head 13, telescopic pipe 1, pressure release storehouse sidewall 11, outer sleeve 2 and seal ring 9 formed spatial structure one pressure release storehouse 10, is evenly distributed with 6 relief holes 16 on the pressure release storehouse sidewall 11.

During use, with telescopic pipe 1 and telescopic pipe 1 ' be connected with pipeline, needn't consider MEDIA FLOW to.When medium passes through, the eddy current reverse direction flow pressure release storehouse sidewall 11 that medium is produced by blind plate in the pipe, enter pressure release storehouse 10 by relief hole 16, make it both reduce thrust to blind plate, balance to the weight bearing power of support, pressure medium also can act directly on the seal ring 9, has strengthened the sealing of Sealing, can adjust the impacting force of 5 pairs of Sealings of spring propulsion by adjusting screw 4, can annotate formula stuffing box packing 8 and can inject by injection orifice 7.Can be observed race by caution hole 15 and emit phenomenon.

Claims

1, a kind of bi-directional expansion can be annotated the formula pipeline compensator, comprise outer sleeve, the retaining ring that is provided with successively between telescopic pipe and outer sleeve and the telescopic pipe (3), spring propulsion (5), stuffing box packing (8) and seal ring (9), it is characterized in that: be provided with injection orifice (7) with the outer sleeve of the corresponding position of stuffing box packing, be positioned at outer sleeve (2) inner end and be provided with the pressure release storehouse, be positioned on the pressure release storehouse sidewall (11) of telescopic pipe end and be evenly equipped with relief hole (16), be provided with caution hole (15) on outer sleeve (2), telescopic pipe (1) and telescopic pipe (1 ') are positioned at outer sleeve (2).

2, bi-directional expansion according to claim 1 can be annotated the formula pipeline compensator, it is characterized in that: the quantity of above-mentioned relief hole (16) is 3-16.

3, bi-directional expansion according to claim 1 can be annotated the formula pipeline compensator, it is characterized in that: what be positioned at that stuffing box packing between seal ring (9) and the spring propulsion (5) adopts is graphite packing and heatproof seal gease (6), and the middle part is for can annotate formula stuffing box packing (8).

4, bi-directional expansion according to claim 1 can be annotated the formula pipeline compensator, it is characterized in that: above-mentioned telescopic pipe (1) is relative with telescopic pipe (1 ') position, and is installed in the outer sleeve (2).