CN102585906A

CN102585906A - Knocking device for removing carbon deposition from coal gasifier

Info

Publication number: CN102585906A
Application number: CN2012100332366A
Authority: CN
Inventors: 姚黎明; 王伯亮; 郑国运; 杨家义; 储昭松; 李香; 沈宗沼; 丁思云; 丁强民; 吴兆山; 李鲲
Original assignee: Hefei General Machinery Research Institute Co Ltd
Current assignee: Hefei General Machinery Research Institute Co Ltd
Priority date: 2012-02-14
Filing date: 2012-02-14
Publication date: 2012-07-18
Anticipated expiration: 2032-02-14
Also published as: CN102585906B

Abstract

The invention discloses a knocking device for removing carbon deposition from a coal gasifier. The knocking device comprises a support body, a guide sleeve, a pressing sleeve, a piston rod, a piston, a hammer body and a filter arranged in the support body, and is characterized in that: a piston rod seal is a cartridge seal structure arranged in the pressing sleeve, and the pressing sleeve and the guide sleeve are sealed by an end face seal gasket; an O-shaped seal ring and a piston rod V-shaped seal structure are arranged in the cartridge seal structure; the piston rod V-shaped seal structure comprises a piston rod V-shaped ring, a piston rod support ring, a push ring pressed against the tail end of the piston rod support ring, and a piston rod spring supported on the push ring; the piston rod support ring and the piston rod V-shaped ring are limited by a collar at the periphery; and the piston rod spring pre-tightens the piston rod V-shaped ring through the push ring. By arranging the cartridge seal structure, the seal is reliable, the service life of the knocking device is long, the knocking device is convenient to assemble and disassemble, and seal elements can be replaced under the condition that the whole knocking device is not detached after the seal fails.

Description

Coal gasifier carbon remover knocking device

Technical field

The present invention relates to a kind of coal gasifier carbon remover knocking device.

Background technology

Coal gasifier is the nucleus equipment of " coal for oil " device and other allied equipment; Knocking device is the key equipment that guarantees the normal operation of coal gasifier; The working temperature of knocking device is that 350 ℃, WP are 6MPa; Its effect is through to-and-fro movement, frequently knocks, and prevents furnace interior spare and furnace wall dust stratification, carbon distribution.The sealing of knocking device mainly is piston packing and piston rod packing.Piston packing is to be used for controlling the interior obnoxious flavour of coal gasifier to leak along piston; Piston rod packing is the control barrier gas along the leakage of back hazardous medium gas along piston rod of losing efficacy of the leakage of piston rod and piston packing.The sealing of knocking device is the key part of coal gasifier knocking device, and is closely related with safety, the reliability service of coal gasifier.

The sealing member of knocking device, the one, the requirement sealing member material keeps excellent sealing performance under the HTHP situation, also good abrasion resistance will be arranged; The 2nd, the sealing part works environment is abominable, and applying working condition is poor, requires sealing reliable, and long service life is rational in infrastructure.On the sealed structure of knocking device, at present, the piston packing of coal gasifier knocking device is on the knocking device piston, directly to process o-ring groove in the world, seals with y-type seal ring; Piston rod packing then is employed in and directly processes several o-ring groove on the knocking device guide pin bushing; Seal with O shape circle etc.; Each sealing components and parts are dispersive, and the existing problem of this structure formation is after seal failure, need to remove complete assembly; Can change sealing member, mounting or dismounting are inconvenience very; And, because the knocking device long-time running, then there is impurity such as coal ash to concentrate on the knocking device piece surface, cause very difficulty of device dismounting, it is almost unlikely to change sealing member separately, often need change whole knocking device.

Summary of the invention

The present invention is for avoiding the deficiency on the above-mentioned existing coal gasifier knocking device sealed structure; A kind of gas furnace carbon remover knocking device is provided, and its sealed structure adopts independently packaging type design, makes its sealed structure reasonable; Safe and reliable; Prolong work-ing life, and mounting or dismounting are convenient, need not to remove the whole just replaceable sealing member of table apparatus.

Technical solution problem of the present invention adopts following technical scheme:

Coal gasifier carbon remover knocking device of the present invention comprise supporter, with the quiet guide pin bushing that connects of supporter, through screw be connected the guide pin bushing end gland, piston rod, be sleeved on piston on the piston rod, by support body supports and with the contacted hammer body of piston rod be installed in and support intravital filtration unit; Its constructional feature is: it is the cartridge seal design that is installed in the gland that piston rod packing is set, and said gland and guide pin bushing are through the mechanical seal gasket seal; In the cartridge seal design of said piston rod packing, O-ring seals and piston rod v-seal structure are set respectively; Comprise in the said piston rod v-seal structure: piston rod v shaped ring, piston rod pushing out ring, pushing tow are at the throw-out collar of piston rod pushing out ring tail end and be bearing in the piston rod spring on the throw-out collar; Said piston rod pushing out ring and piston rod v shaped ring are spacing in periphery by collar, pass through throw-out collar to piston rod v shaped ring pretension by said piston rod spring.

The constructional feature of coal gasifier carbon remover knocking device of the present invention also is:

In said gland, between said v-seal structure and O-ring seals, offer oil storage vessel.

The piston packing of integral sealing structure is set between said piston and guide pin bushing; V-seal spare and piston-ring are set respectively in said piston packing; Said v shaped ring sealing is made up of piston v shaped ring, piston pushing out ring, pressure ring and set nut, and said piston pushing out ring and piston v shaped ring are pressed on the piston through set nut by pressure ring; Piston v shaped ring and piston-ring form sealing with guide pin bushing respectively.

Compared with present technology, beneficial effect of the present invention is embodied in:

1, the present invention is a kind of coal gasifier carbon remover knocking device, can effectively remove dust stratification and carbon distribution in the coal gasifier, reliable operation;

2, independently packaging type structure is adopted in the sealing of carbon remover knocking device of the present invention, and easy accessibility need not to remove the whole just replaceable sealing member of table apparatus;

3, the leakage at coal gasifier carbon remover knocking device piston rod place can be effectively controlled in the sealing of coal gasifier carbon remover knocking device of the present invention, and sealingly secure is reliable, long service life;

4, between the v-seal of piston rod packing and seal with O ring, offer oil storage vessel among the present invention, can effectively strengthen lubricatedly, increase the service life.

Description of drawings

Fig. 1 always schemes for carbon remover knocking device structure of the present invention.

Fig. 2 is a piston sealing structure synoptic diagram of the present invention.

Fig. 3 is the piston rod seal synoptic diagram among the present invention.

Label among the figure: A piston packing; The B piston rod packing; 1 supporter; 2 guide pin bushings; 3 piston rods; 4 pistons; 5 piston-ring; 6 piston v shaped rings; 7 piston pushing out rings; 8 set nuts; 9 pressure rings; 10 hammer bodies; 11 springs; 12 glands; 13 screws; 14 is O-ring seals; 15 oil storage vessels; 16 piston rod springs; 17 throw-out collars; 18 collars; 19 piston rod pushing out rings; 20 piston rod v shaped rings; 21 mechanical seal pads; 22 support rings; 23 filtration units.

Embodiment

Referring to Fig. 1, Fig. 2 and Fig. 3; Coal gasifier carbon remover knocking device in the present embodiment includes supporter 1, is connected gland 12, the piston rod 3 of the end of guide pin bushing 2 with the quiet guide pin bushing that connects of supporter 12, through screw 13, is sleeved on the piston 4 on the piston rod 3; The piston 4 that is sleeved on the piston rod 3 by 11 pairs on spring carries out pretension; The hammer body 10 that is supported by supporter 1 is contacted with the rod end of end face with piston rod 3, filter by the 23 pairs of media of filtration unit that are installed in the supporter 1.

As shown in figures 1 and 3, it is the cartridge seal design that is installed in the gland 12 that piston rod packing B is set in the present embodiment, and gland 12 seals through mechanical seal pad 21 with guide pin bushing 2; In the integral sealing structure of piston rod packing B, O-ring seals 14 and piston rod v-seal structure are set respectively; Comprise in the piston rod v-seal structure: piston rod v shaped ring 20, piston rod pushing out ring 19, pushing tow are at the throw-out collar 17 of piston rod pushing out ring 19 tail ends; And be bearing in the piston rod spring 16 on the throw-out collar 17; Piston rod pushing out ring 19 is spacing in periphery by collar 18 with piston rod v shaped ring 20, passes through 17 pairs of piston rod v shaped ring 20 pretensions of throw-out collar by piston rod spring 16.

In gland 12, between v-seal structure and O-ring seals 14, offer oil storage vessel 15, in order in working order down, strengthen lubricated.

As depicted in figs. 1 and 2; The piston packing A of integral sealing structure is set between piston 4 and guide pin bushing 2 in the present embodiment; In piston packing A; V-seal spare and piston-ring 5 are set respectively, and the v shaped ring sealing is made up of piston v shaped ring 6, piston pushing out ring 7, pressure ring 9 and set nut 8, and piston pushing out ring 7 is pressed on the piston 4 through set nut 8 by pressure ring 9 with piston V-type circle 6; Piston v shaped ring 6 forms sealing with guide pin bushing 2 respectively with piston-ring 5.

In the practical implementation,, be respectively applied for installing piston rod v shaped ring sealed structure and O-ring seals 14, form sealing with piston rod 3 respectively with piston rod v-seal structure and O shape circle 14 at the interior Zhou Kaishe groove of gland 12.Offer the support ring groove in the gland inboard, installing support ring 22 prevents beat in order to support piston bar 3 maintenance levels.

In the present embodiment, piston sealing structure A and piston rod seal B are set to high temperature resistant, high voltage bearing cartridge seal design, working parameter is set is: 350 ℃ of working temperatures, WP 6MPa.

Claims

1. coal gasifier carbon remover knocking device, comprise supporter (1), with the quiet guide pin bushing that connects of supporter (1) (2), through screw (13) be connected guide pin bushing (2) end gland (12), piston rod (3), be sleeved on piston (4) on the piston rod (3), by supporter (1) support and with the contacted hammer body of piston rod (3) (10) filtration unit (23) interior with being installed in supporter (1); It is characterized in that:

It is the cartridge seal design that is installed in the gland (12) that piston rod packing (B) is set, and said gland (12) seals through mechanical seal pad (21) with guide pin bushing (2); In the cartridge seal design of said piston rod packing (B), O-ring seals (14) and piston rod v-seal structure are set respectively; Comprise in the said piston rod v-seal structure: piston rod v shaped ring (20), piston rod pushing out ring (19), pushing tow are at the throw-out collar (17) of piston rod pushing out ring (19) tail end and be bearing in the piston rod spring (16) on the throw-out collar (17); Said piston rod pushing out ring (19) and piston rod v shaped ring (20) are spacing in periphery by collar (18), pass through throw-out collar (17) to piston rod v shaped ring (20) pretension by said piston rod spring (16).

2. coal gasifier carbon remover knocking device according to claim 1 is characterized in that in said gland (12), is positioned between said v-seal structure and the O-ring seals (14) and offers oil storage vessel (15).

3. coal gasifier carbon remover knocking device according to claim 1 and 2; It is characterized in that between said piston (4) and guide pin bushing (2), being provided with the piston packing (A) of integral sealing structure; V-seal spare and piston-ring (5) are set respectively in said piston packing (A); Said v shaped ring sealing is made up of piston v shaped ring (6), piston pushing out ring (7), pressure ring (9) and set nut (8), and said piston pushing out ring (7) and piston v shaped ring (6) are pressed on the piston (4) through set nut (8) by pressure ring (9); Piston v shaped ring (6) forms sealing with guide pin bushing (2) respectively with piston-ring (5).