CN208268436U - A kind of top-pulling type low temperature adjusting angle valve - Google Patents
A kind of top-pulling type low temperature adjusting angle valve Download PDFInfo
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- CN208268436U CN208268436U CN201820841171.0U CN201820841171U CN208268436U CN 208268436 U CN208268436 U CN 208268436U CN 201820841171 U CN201820841171 U CN 201820841171U CN 208268436 U CN208268436 U CN 208268436U
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Abstract
The utility model relates to a kind of top-pulling type low temperature to adjust angle valve, including bonnet, filler assembly, guide sleeve, support, sheath assembly, spool, valve body and valve seat, the material of valve body uses rust-preventing aluminum alloy 5083, body size can be reduced, reduce the heat loss of valve body, again can be fire-proof and explosion-proof, guarantee that the valve entire duty cycle can stablize, is safe.Described sleeve pipe component is arranged in the inner cavity of the support, described sleeve pipe component internal has cavity, cavity is provided with perlite, the good heat insulation of perlite makes filler far from processing medium, the sealing effect for stabilizing filler reduces the energy that filler is passed to by bonnet, support and sheath assembly.The bottom of support and the screw top of valve body connect, and the top of the support is threadedly coupled with the bottom end of the bonnet,.This angle valve using top-pulling type design, can not from pipeline cut valve under the premise of quick-replaceable trim.Can be under the conditions of subzero 196 degree, filler remains to work normally.
Description
Technical field
The utility model relates to valve fields more particularly to a kind of top-pulling type low temperature to adjust angle valve.
Background technique
In current medium-and-large-sized ethylene unit, the separation of the components such as hydrogen, methane mostly uses ultralow temperature point in cracking gas
From；Ultralow temperature isolation technics is also mainly used in ammonia from coal purification device.It is low for the working condition requirement for meeting this kind of ultralow temperature
Warm valve is widely used.In the design of Conventional cryogenic valve, consider from metallographic, in addition to face-centered cubic crystalline substance in metal material
Other than austenitic stainless steel, copper, aluminium of lattice etc., general steel will appear black brittleness under low-temperature condition, be easily deformed.Together
When structure length not can guarantee bonnet, and top frost-free, filler can deform, filler because of the variation of working media temperature
Elasticity fades away, and leak resistance declines therewith, since media leaks cause to freeze at filler and valve rod, influences valve rod and normally grasps
Make also scratch filler due to valve rod moves up and down simultaneously, cause serious leak, if leakage, will reduce cold insulation at stuffing-box
Effect leads to gasifying liquefied gas, and for not having explosion-proof and fire proof construction valve, user's field working conditions handle frosting valve
It is difficult, also there is certain risk.
In the market at present existing low temperature valve, in order to guarantee not generate interior leakage between valve seat and valve body, can generally select by
Valve body is welded with valve seat, although ensure that will not generate interior leakage in this way, inevitably generates low temperature under practical ultralow-temperature operation conditions
Deformation can wear sealing surface during valve switch, this result in needing after long-time use to the sealing surface of spool valve seat into
Row is reprocessed, but since valve and pipeline and valve seat are welded type, when valve needs to reprocess, need by valve it is whole from
It is cut down in pipeline, time-consuming and laborious, cost when repairing and installing will greatly increase.
Utility model content
The utility model will solve the technical issues of background technique and be to provide a kind of angle that can apply under ultra low temperature state
Valve can carry out top and take out to replace the component in valve under the premise of not disassembling valve.
The technical solution that the utility model solves above-mentioned technical problem is as follows: a kind of top-pulling type low temperature adjusting angle valve, including
Bonnet, filler assembly, guide sleeve, support, sheath assembly, spool, valve body and valve seat, described sleeve pipe component are arranged in the branch
In the inner cavity of seat, the bottom end of the support and the top of valve body are connected, and the bottom end of the top of the support and the bonnet, connects
It connects.The valve seat and the spool are arranged in the inner cavity of the valve body, and the valve seat is connect with the internal chamber wall of the valve body, institute
It states and is abutted at the bottom and the upper end opening of the valve seat of spool, the top of the spool and the bottom end of described sleeve pipe component connect
It connects, the bottom end of the spool is equipped with the type face that fluid passes through speed that adjusts, and the end in the type face is equipped with to carry out with the valve seat
The sealing surface of sealing, the bonnet, center are equipped with the valve rod arranged vertically, and the top of the valve rod is arranged with filler assembly
And gland, the bottom of the gland are protruded into bonnet, and filler assembly are pressed between valve rod and bonnet,
The bottom end of the valve rod is connect with the top of described sleeve pipe component, and the bottom of the bonnet, is arranged with the guide sleeve, and institute
It states valve rod and the guide sleeve is interference fitted.
The beneficial effects of the utility model are: filler assembly ensure that valve under conditions of subzero, will not reveal.
And the interference fit of guide sleeve and valve rod, allow valve rod both sheath assembly and spool can be driven to move up and down to realize valve opening
Variation adjust the technological parameters such as flow, pressure, temperature, liquid level, and the motion profile of valve rod can be limited, ensure that device
Stability.It can also select successively to remove bonnet, support by the requirement of technique, valve body carries out spool and valve seat
Replacement.Index K can be used for the performance of angle valveT(formula 1-1) does unified comparison.
In formula:
Enter the energy of cryogenic media in P --- the unit time,
P=Q1/T, Q1 energy, T time
αT--- proportionality coefficient, it is contemplated that Subzero valve is generally tested in liquid nitrogen, αT=0.0216
Difference between △ T --- ambient temperature (20 DEG C) and cryogenic media temperature
The inside nominal diameter of DN --- valve, m
The cooling performance of Subzero valve refers to ability of the Subzero valve from the operating temperature of room temperature cooling, this performance can be with
Using valve in above process consumed by energy, i.e., valve is transmitted to the heat Q2 of cryogenic media to weigh in above process
Amount.Cooling performance index has extremely important meaning for the Subzero valve of periodic duty, can use index Km
(formula 1-2) does unified comparison.
KTValue is only related with valve nature for same medium approximation constant.KmValue additionally depend on the class of valve
The elements such as type, the structurally consummate degree of the material of valve housing and its component.Therefore two kinds of values can be used as a kind of measurement valve
Heat-insulating property and cooling performance a kind of parameter.
The 1 horizontal index of pneumatic type vacuum thermal insulation low temperature valve gate technique of table
Table 1 is the performance indicator of some valves, it can be seen that, with the increase of inside nominal diameter, performance is also changed
It is kind, so to KTWith KmThe requirement of index should be depending on DN, KmValue to depend on the type of valve, valve chest material and
The structurally consummate degree of its component.
The K of some main Types valves of table 2mValue
Table 2 lists the K of common low temperature valvemIndex value, wherein the index of butterfly valve is best, but this kind of valve is at low temperature
Sealing performance it is poor, so only be used to do regulating valve.The leakproofness of the structure of the utility model ensure that the performance of valve.
Based on the above technical solution, the utility model can also do following improvement.
Further, described sleeve pipe component internal is equipped with cavity, is equipped with heat-barrier material in the cavity.
Beneficial effect using above-mentioned further scheme is that filler is allowed far from processing medium, to stabilize the sealing of filler as far as possible
On the other hand effect reduces the energy that filler is passed to by bonnet, support and sheath assembly.Be conducive to filler separate
Work that can be stable in the case where processing medium.
Further, the heat-barrier material is perlite.
Beneficial effect using above-mentioned further scheme is that perlite has better heat insulation, is further reduced logical
Cross the energy that bonnet, support and sheath assembly pass to filler.
Further, described sleeve pipe component uses prolonged type thin-walled.
Beneficial effect using above-mentioned further scheme is that have reduction volume, and positive large area is conducive to filler in ultralow temperature
Lower stable work.Prolonged type thin-walled is that sheath assembly is lengthened to grow as support, extends sheath assembly, reduces valve
The length of bar, guiding can be more preferable, extend sheath assembly and also for capable of pouring into some perlites more, thin-walled design also for
More perlites are poured into sheath assembly, play heat-insulated effect.
Further, the valve seat is screw-type valve seat, is equipped with sealing surface, the valve seat at the top and bottom of the valve seat
It is sealed by sealing surface and is connect with the inner thread of the valve body.
Beneficial effect using above-mentioned further scheme is the angle valve that screw-type valve seat can smoothly realize top-pulling type, is made
The effect that can guarantee sealing with sealing surface sealing the characteristics of connection using screw thread valve seat itself with valve body, is rotated by applying
Power and thrust from spool guarantee sealing surface stress between the two, to reach required sealing effect.
Further, the material of the valve body is rust-preventing aluminum alloy 5083.
It is high magnesium alloy that beneficial effect using above-mentioned further scheme, which is 5083, and intensity is good in non-heat-treatable alloy
Good, corrosion resistance, machinability are good.Main alloy element in alloy is magnesium, has good corrosion stability and weldability energy,
And moderate strength.Excellent corrosion resistance makes 5083 alloys be widely used in maritime affairs purposes such as ship and automobile, liquid tank
In the pressure vessel that vehicle, refrigerator car, frozen products insulated container etc. need rigorous fire explosion-proof.It can as valve body 10 using 5308 aluminium alloys
Reduce body size, reduce the heat loss of valve body, and can be fire-proof and explosion-proof, guarantees that the valve entire duty cycle can stablize, pacify
Entirely.
Further, linear sealing is used between the valve seat and the spool.
Beneficial effect using above-mentioned further scheme is with better seal effect.
Further, the spool and described sleeve pipe component are connected through a screw thread, and described sleeve pipe component and the valve rod pass through
It is threadedly coupled.
Beneficial effect using above-mentioned further scheme be the connection type of all parts it is more noisy by and flexibly.
Detailed description of the invention
Fig. 1 is that the utility model top-pulling type low temperature adjusts angle valve schematic diagram；
Fig. 2 is the utility model sheath assembly prolonged type thin-walled schematic diagram；
In attached drawing, parts list represented by the reference numerals are as follows:
1, bonnet, 2, filler assembly, 3, valve rod, 4, guide sleeve, 5, support, 6, sheath assembly, 7, perlite, 8, valve
Core, 9, valve seat, 10, valve body, 12, gland
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
As shown in Figure 1 and Figure 2, a kind of top-pulling type low temperature adjusts angle valve, including bonnet, 1, filler assembly 2, guide sleeve 4, branch
The material of seat 5, sheath assembly 6, spool 8, valve body 10 and valve seat 9, valve body 10 uses rust-preventing aluminum alloy 5083, can reduce valve body
Size reduces the heat loss of valve body, and can be fire-proof and explosion-proof, guarantees that the valve entire duty cycle can stablize, is safe.The set
Tube assembly 6 is arranged in the inner cavity of the support 5, there is cavity inside described sleeve pipe component 6, and cavity is provided with perlite 7, precious
The good heat insulation of pearl rock 7 makes filler far from processing medium, stabilizes the sealing effect of filler, on the other hand reduces logical
Cross the energy that bonnet, 1, support 5 and sheath assembly 6 pass to filler.It ensure that filler in the feelings far from processing medium well
Work that can be stable under condition.The bottom of support 5 is connect with the screw top of valve body 10, the top of the support 5 and it is described on
The bottom end of valve deck 1 is threadedly coupled.The valve seat 9 and the spool 8 are arranged in the inner cavity of the valve body 10, the valve seat 9 with
The internal chamber wall of the valve body 10 is threadedly coupled, and the bottom of the spool 8 is abutted with the opening of the valve seat 9, the spool 8
Top is connect with the bottom thread of described sleeve pipe component 6, and the bottom end of the spool 8 is equipped with the type face that fluid passes through that adjusts, described
The end in type face and the valve seat 9 use linear sealing；
1 center of bonnet, is equipped with the valve rod 3 arranged vertically, is arranged with filler assembly 2 and filler on the valve rod 3
Gland 12, the bottom of gland 12 are protruded into bonnet, 1 and filler assembly 2 are pressed between valve rod 3 and bonnet, 1, institute
It states valve rod 3 to be threadedly coupled far from one end of the gland 12 with the top of described sleeve pipe component 6, the bottom of bonnet, 1 is set
There is guide sleeve 4, the valve rod 3 passes through the guide sleeve 4 and the valve rod 3 and the guide sleeve 4 are interference fitted.About valve rod 3
It is mobile to drive sheath assembly 6 and spool 8, by the variation of valve opening, thus realize for flow, pressure, temperature,
The adjustment of the technological parameters such as liquid level.Bonnet, 1 is extended using the design of unique heat radiating fin structure by increasing by 3 cooling fins
Upper valve cover length, increases heat dissipation area, to reduce the temperature at filler, can be good at protecting filler；It ensure that valve
Under the conditions of subzero 196 degree, filler remains to work normally door, and valve 10 is whole to carry out super low temperature.
Trim inevitably generates low-temperature deformation under ultralow-temperature operation conditions, and sealing surface can be worn during valve switch, this
The sealing surface to 8 valve seat 9 of spool is needed to reprocess after resulting in long-time use.The utility model is for the ease of in replacement valve
Part removes the bolt on bonnet, 1 and support 5, takes down bonnet, 1 using the method for top-pulling type, secondly can be casing group
Part 6, spool 8 and 3 entirety of valve rod are taken out from support 5, and finally valve seat 9 is screwed out with tooling, spool 8 can be replaced in outside
Equal components, to achieve the purpose that quick-replaceable repairs trim, the entire replacement cycle is not needed valve under cutting in pipeline
Come, it is only necessary to replacement can be completed within 30~50 minutes, it is time saving and energy saving.So valve seat 9 is designed to spiral valve seat, with valve body 10
Be threadedly coupled, the top and bottom of the valve seat 9 are equipped with sealing surface, the valve seat 9 sealed by sealing surface and with institute
State valve body 10 inner thread connection, the characteristics of connection using screw thread valve seat 9 itself with valve body 10, by application rotary force and
Thrust from spool 8 guarantees sealing surface stress between the two, to reach required sealing effect.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (8)
1. a kind of top-pulling type low temperature adjusts angle valve, which is characterized in that including bonnet, (1), filler assembly (2), guide sleeve (4),
Support (5), sheath assembly (6), spool (8), valve body (10) and valve seat (9), described sleeve pipe component (6) are arranged in the support
(5) in inner cavity, the bottom end of the support (5) is connect with the top of valve body (10), the top of the support (5) and the upper valve
Cover the bottom end connection of (1)；
The valve seat (9) and the spool (8) are arranged in the inner cavity of the valve body (10), the valve seat (9) and the valve body
(10) internal chamber wall connects, and abuts at the bottom of the spool (8) and the upper end opening of the valve seat (9), the spool (8)
Top is connect with the bottom end of described sleeve pipe component (6), and the bottom end of the spool (8) is equipped with for adjusting type of the fluid by speed
Face, the end in the type face are equipped with the sealing surface being sealed with the valve seat (9)；
Bonnet, (1) center is equipped with the valve rod (3) arranged vertically, and the top of the valve rod (3) is arranged with filler assembly
(2) it protrudes into bonnet, (1) with gland (12), the bottom of the gland (12) and is pressed on filler assembly (2)
Between valve rod (3) and bonnet, (1), the bottom end of the valve rod (3) is connect with the top of described sleeve pipe component (6), the upper valve
The bottom of lid (1) is arranged with the guide sleeve (4), and the valve rod (3) and the guide sleeve (4) are interference fitted.
2. a kind of top-pulling type low temperature according to claim 1 adjusts angle valve, which is characterized in that in described sleeve pipe component (6)
Portion is equipped with cavity, is equipped with heat-barrier material in the cavity.
3. a kind of top-pulling type low temperature according to claim 2 adjusts angle valve, which is characterized in that the heat-barrier material is pearl
Rock (7).
4. a kind of top-pulling type low temperature according to claim 1 adjusts angle valve, which is characterized in that described sleeve pipe component (6) is adopted
With prolonged type thin-walled.
5. a kind of top-pulling type low temperature according to claim 1 adjusts angle valve, which is characterized in that the valve seat (9) is screw thread
Formula valve seat, is equipped with sealing surface at the top and bottom of the valve seat (9), the valve seat (9) sealed by sealing surface and with it is described
The inner thread of valve body (10) connects.
6. a kind of top-pulling type low temperature according to claim 1 adjusts angle valve, which is characterized in that the material of the valve body (10)
For rust-preventing aluminum alloy 5083.
7. a kind of top-pulling type low temperature according to claim 1 adjusts angle valve, which is characterized in that the valve seat (9) with it is described
Linear sealing is used between spool (8).
8. a kind of top-pulling type low temperature adjusting angle valve described in -7 any one according to claim 1, which is characterized in that the spool
(8) it is connected through a screw thread with described sleeve pipe component (6), described sleeve pipe component (6) and the valve rod (3) are connected through a screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820841171.0U CN208268436U (en) | 2018-05-31 | 2018-05-31 | A kind of top-pulling type low temperature adjusting angle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820841171.0U CN208268436U (en) | 2018-05-31 | 2018-05-31 | A kind of top-pulling type low temperature adjusting angle valve |
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| Publication Number | Publication Date |
|---|---|
| CN208268436U true CN208268436U (en) | 2018-12-21 |
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ID=64688953
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820841171.0U Active CN208268436U (en) | 2018-05-31 | 2018-05-31 | A kind of top-pulling type low temperature adjusting angle valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488401A (en) * | 2018-05-31 | 2018-09-04 | 艾坦姆流体控制技术（北京）有限公司 | A kind of top-pulling type low temperature adjusting angle valve |
-
2018
- 2018-05-31 CN CN201820841171.0U patent/CN208268436U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488401A (en) * | 2018-05-31 | 2018-09-04 | 艾坦姆流体控制技术（北京）有限公司 | A kind of top-pulling type low temperature adjusting angle valve |
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| TR01 | Transfer of patent right |
Effective date of registration: 20200317 Address after: 272000 No.1 HENGFA Road, Beisu Town, Zoucheng City, Jining City, Shandong Province Patentee after: Etam fluid control technology (Shandong) Co., Ltd Address before: 101300 29 front street, Linhe village, Renhe Development Zone, Shunyi District, Beijing Patentee before: UTMOST FLOW CONTROL TECH (BEIJING) Co.,Ltd. |