CN206988498U - A kind of welded type large bore valves - Google Patents
A kind of welded type large bore valves Download PDFInfo
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- CN206988498U CN206988498U CN201720767390.4U CN201720767390U CN206988498U CN 206988498 U CN206988498 U CN 206988498U CN 201720767390 U CN201720767390 U CN 201720767390U CN 206988498 U CN206988498 U CN 206988498U
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- welded type
- valve
- short tube
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- large bore
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Abstract
A kind of welded type large bore valves, including valve body, the valve body have valve pocket passage, and the both sides of the valve body connect integrally formed with to the welded type short tube with pipeline welding, the welded type short tube with the valve pocket passage.The utility model reduces cost than traditional large bore valves, and causes easier for installation quick.
Description
Technical field
It the utility model is related to valve technology field, more particularly to a kind of welded type large bore valves.
Background technology
Valve is control unit in pipeline fluid induction system, for changing path section and media flow direction, is had
The functions such as water conservancy diversion, cut-off, throttling, non-return, shunting or overflow release.For the valve of fluid control, from simplest stop valve
The various valves used into extremely complex robot control system(RCS), its kind and specification are various, and the inside nominal diameter of valve is from atomic small
Gauge valve greatly to latus rectum reach 10m industrial pipeline valve.
At present, large bore valves are most uses following manufacturing process：After valve body is cast, then in valve sheet
Welded flange in body shorted on both ends, after welding, a piece of permanent companion flange blind plate, pad, bolt are reprocessed, to valve
It is qualified that door carries out air-tight test；After pass the test, valve is issued Subscriber Unit and used, its companion flange blind plate, bolt, pad
Piece uses for next same model valve air-tight test.
But there is the defects of following in the large bore valves of this structure：(1) when valve needs to change, because of each manufacture
Factory valve thickness is different and is limited and the distortional stress situation of expanding with heat and contract with cold of pipeline by in-service pipeline installing space, can not
Original valve is removed and quickly tightly installed the new valve for needing to change from in-service pipeline companion flange；And the spiral shell of flange
The problem of keyhole is difficult to alignment in docking.(2), it is necessary to corresponding companion flange, pad and bolt be purchased in advance, two before installation
20-50CM short tube is welded on the companion flange of side, then passes through companion flange, pad, bolt connection with new valve；(3) installed
, it is necessary to which valve position need to changed in journey, according to the valve total length newly assembled, respective valves and pipeline section on in-service pipeline are cut off
Afterwards, new valve group is by chance arranged on the position, then carries out corresponding technique welding, majority is present caused by pipe stress changes
The leakage of new valve both sides pads re-secure or pad pressure lays particular stress on the situation of new centering, in addition, pad aging therein, bolt
Need frequently to be changed after corrosion, significantly increase cost.
Therefore, a kind of new welded type large bore valves are developed, not only with urgent researching value, it may have good warp
Benefit of helping and commercial application potentiality, this is exactly where the power that the utility model is accomplished and basis.
Utility model content
The defects of in order to overcome prior art as indicated above, the present inventor has made intensive studies to this, is paying
After a large amount of creative works, so as to completing the utility model.
Specifically, technical problem to be solved in the utility model is：A kind of welded type large bore valves are provided, with drop
Low large bore valves utilize cost during traditional flange installation and assembly difficulty.
In order to solve the above technical problems, the technical solution of the utility model is：
A kind of welded type large bore valves, including valve body, the valve body have valve pocket passage, the valve sheet
The both sides of body connect integrally formed with to the welded type short tube with pipeline welding, the welded type short tube with the valve pocket passage
It is logical.
In the utility model, as an improvement, blank-plate valve, plate of the valve body using DN1000 or more
Valve or butterfly valve, gate valve.
In the utility model, as an improvement, the welded type short tube casting is arranged at the two of the valve body
Side.
In the utility model, as an improvement, the welded type short tube is set with the valve pocket passage coaxial line
Put.
In the utility model, as an improvement, the length of the welded type short tube is 20-50 centimetres.
In the utility model, as an improvement, the outer wall of the welded type short tube is provided with anticorrosive coat, and away from institute
One end outer rim for stating valve body is provided with welded bands.
In the utility model, as an improvement, the welded bands are a circle groove.
In the utility model, as an improvement, the welded type short tube typically uses Q235 steel pipes.
The utility model when in use, no longer purchases companion flange, pad and bolt, directly according to the overall thick of new valve
Degree, cuts off original valve, and after new valve is by chance arranged on the position, welded type short tube is docked with external pipe, carries out
Both sides welding finishes, you can disposably puts into operation, saves plenty of time and expense.
After employing above-mentioned technical proposal, the beneficial effects of the utility model are：
The utility model is directly integrally formed using welded type short tube with valve body, and manufacture saves body flange when detecting
Welding and companion flange, bolt, the expense of pad, companion flange, bolt, the expense of pad are saved during in-site installation；Pacify simultaneously
Medium caused by preventing pad skew, bolt fastening inequality during dress is revealed；In addition, it also avoid because of each producer's valve body size
Difference, original companion flange and bolt can not be all used when changing valve, and valve is cut off from pipeline, new valve two
Companion flange fastening in side is good to be welded short tube and is put into the valve pipe position sliced off and weld again again and save the working time with applying
Wage gold；Reduce normal operation rear bolt anti-rust and lubrication, pad aging stopping production renewal cost.
The outer wall of the utility model welded type short tube is provided with anticorrosive coat, and one end outer rim away from the valve body is set
It is equipped with welded bands.The welded bands are a circle groove.Based on this structure, the utility model can be very easily straight with pipeline
Connect and be welded to connect, it is easy to operate, reduce artificial cost.
Inventor is also carried out by taking DN1200/PN1.0, DN2000/PN1.0 valve (according to 5 years life-spans) as an example to cost
Measuring and calculating：
(1) DN1200/PN1.0 valves save cost accounting
1st, 4 × 1410 yuan=5640 yuan of DN1200/PN1.0 Q235 companion flanges
2nd, 2 × 620 yuan=1240 yuan of DN1200/PN1.0 stainless steel metals wound gasket
3rd, 32 × 2 × 3.47 yuan=222.08 yuan of M24*120 Q235 bolts
4th, 64 × 2 × 0.07 yuan=8.96 yuan of 20 Q235 plain cushions of ф
5th, 32 × 2 × 0.15 yuan=9.6 yuan of 20 Q235 spring washers of ф
When the 6th, changing valve, 20-50 centimetres of Site Welding companion flange DN1200 tubing spools,
Fusion length 3.8*2 rice, manually 5 hours × 2 people × 30 yuan=300 yuan；
With 32 × 350 200 × 2 × 0.15 yuan=60 yuan of welding rod knot 422J40.50 ф；
Weld electricity charge 2KW × 10 hour × 0.5 yuan=10 yuan.
7th, new valve installation fastens companion flange, pad and bolt, manually 3 hours × 2 people × 30 yuan=180 yuan；
8th, 1 pad is changed within 3 years in running, with 2 × 620 yuan=1240 yuan artificial 4 hours × 2 × 30 yuan of pad
=240 yuan
9th, annual lubrication bolt 1 time in running, it is artificial 0.5 hour (to be handled by company operation worker with oily 100mg
Put aside expense)
10th, during valve manufacture factory exfactory inspection valve：Save welding body flange expense：Fusion length 3.8*2 rice, employment
People × 30 yuan=300 yuan of work 5 hours × 2；With 32 × 350 200 × 2 × 0.15 yuan=60 yuan of welding rod knot 422J40.50 ф；
Weld electricity charge 2KW × 10 hour × 0.5 yuan=10 yuan.Amount to 370 yuan
To sum up calculate：1 Green foundry welded type large bore valves saves expense than former valve：
5640+1240+222.08+8.96+9.6+300+60+10+180+1240+240+370=952 0 yuan.
(2) DN2000/PN1.0 valves save cost accounting
1st, 4 × 5085 yuan=20340 yuan of DN2000/PN1.0 Q235 companion flanges
2nd, 2 × 1270 yuan=2540 yuan of DN2000/PN1.0 stainless steel metals wound gasket
3rd, 42 × 2 × 3.6 yuan=302.4 yuan of M24*160 Q235 bolts
4th, 84 × 2 × 0.07 yuan=11.76 yuan of 20 Q235 plain cushions of ф
5th, 42 × 2 × 0.15 yuan=12.6 yuan of 20 Q235 spring washers of ф
When the 6th, changing valve, 20-50 centimetres of welding companion flange DN2000 tubing spools,
Fusion length 6.28*2 rice, manually 8 hours × 2 people × 30 yuan=480 yuan；
With 32 × 350 330 × 2 × 0.15 yuan=99 yuan of welding rod knot 422J40.50 ф；
Weld electricity charge 2KW × 16 hour × 0.5 yuan=16 yuan.
7th, new valve installation fastens companion flange, pad and bolt, manually 5 hours × 2 people × 30 yuan=300 yuan；
8th, change 1 pad within 3 years in running, with 2 × 1270 yuan=2540 yuan artificial 6.5 hours × 2 of pad ×
30 yuan=390 yuan
9th, annual lubrication bolt 1 time in running, it is artificial 1 hour (to be handled temporarily by company operation worker with oily 150mg
Do not consider expense)
10th, during valve manufacture factory exfactory inspection valve：Save welding body flange expense：Fusion length 6.28*2 rice, use
Artificial 8 hours × 2 people × 30 yuan=480 yuan；With welding rod knot 422J40.50 ф 32 × 350 330 × 2 × 0.15 yuan=99
Member；Electricity charge 2KW × 16 hour × 0.5 yuan=16 yuan are welded, amount to 595 yuan.
To sum up calculate：1 Green foundry welded type large bore valves saves expense than former valve：20340+2540+
It is 302.4+11.76+12.6+480+99+16+300+2540+390+595=27645 first.
By actual measuring and calculating above it can also be seen that the utility model reduces cost than traditional large bore valves, and
And cause easier for installation quick.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment 1；
Fig. 2 is the side structure schematic view of the utility model embodiment 1；
Fig. 3 is the mplifying structure schematic diagram of the utility model welded type short tube groove；
Fig. 4 is the schematic diagram of auxiliary calibration structure；
Wherein, in fig. 1 and 2, each number designation refers to following concrete meaning, element and/or part respectively.
In figure：Valve body 1, welded type short tube 2, assisted calibration structure 3, housing 11, door-plate 12, displacement slideway 13, slope
Mouth 21, anticorrosive coat 22, key seat 31, shank 32.
Embodiment
The utility model is further illustrated with reference to specific embodiment.But the purposes of these exemplary embodiments
Only it is used for enumerating the utility model with purpose, any type of any limit not is formed to real protection scope of the present utility model
It is fixed, it is more non-that the scope of protection of the utility model is confined to this.
Embodiment 1
A kind of welded type large bore valves, including valve body 1, valve pocket passage is provided with the valve body, it is described
The both sides of valve body are integrally formed with to the welded type short tube 2 with pipeline welding, the welded type short tube 2 and the valve pocket
Passage connects.As depicted in figs. 1 and 2, in the present embodiment, valve body 1 uses DN1600 push-pull valve.The valve body 1
Including housing 11 and door-plate 12, valve pocket passage is enclosed to set by housing 11 to be formed, and door-plate 12 is made up of blind plate and logical circle, the activity of door-plate 12
It is installed in the valve pocket passage, and the both sides of housing 11 are provided with displacement slideway 13, the door-plate 12 is movably installed in displacement
On slideway 13, door-plate 12 utilizes valve rod power connector with driving clamping device.At work by driving clamping device (in figure not
Show) action, moment of torsion is acted directly on active valve rod, makes its rotation, and 4-6 root valves are made by drive mechanism mechanism simultaneously
Bar does synchronous rotary (small bore is 4, bore greatly 6), and the screw thread pair on valve rod drives floating seat to compress bellows side
To movement, the sealing ring of door-plate 12 is set to be completely disengaged with two sides valve seals.Restart travel driving unit to carry out door-plate 12
Move horizontally, the blind plate and the relative valve body conduit positions of logical circle for making door-plate 12 are changed, and driving clamping device acts again, makes
Valve seals move floating seat to the left, the rubber seal of door-plate 12 are clamped, so as to complete the switch motion of valve.Door-plate 12
It is made up of blind plate and logical circle.After clamp system unclamps, valve switch can be achieved in the rotation transformation position of door-plate 12.
In the present embodiment, in order to ensure the sealing between welded type short tube 2 and valve body, welded type short tube 2 pour
Casting is arranged at the both sides of the valve body, and this structure is also easy to realize, when making 11 mould of housing of valve body, directly
Connect and connect the die cavity for welded type short tube 2 of casting with overall die cavity.During the installation in later stage, especially installation
The calibration of the heart, welded type short tube 2 are coaxially set with the valve pocket passage.
For inventor in practice, it has been found that the length of welded type short tube 2 is 20-50 centimetres, length is less than 20 centimetres, it is difficult to enters
Row erecting and welding, and weld seam is easily damaged in response to force deformation；Length is more than 50 centimetres, easily causes the waste of material, and work as
Finished for the first time using the welding of 20 centimetre length short tubes after putting into operation, next time changes the valve, it is necessary to both sides soldered
Disposable excision, is 30 cms using weld nipple, ensures that valve both sides only have a weld seam and ensure fluid with this
Pipeline is more sturdy and durable.In the present embodiment, the length of the welded type short tube 2 used is 20 centimetre.
As shown in figure 3, in the present embodiment, the outer wall of the welded type short tube 2 is provided with anticorrosive coat 22, and away from described
One end outer rim of valve body 1 is provided with welded bands, and the welded bands enclose groove 21, the domatic and vertical side of the groove 21 for one
To angle be 30 degree, using the groove 21, convenient welding and weld seam processing can be realized.In addition, the welded type is short
Pipe 2 typically uses Q235 steel pipes, and Q235 steel pipes are carbon containing moderate, and combination property is preferable, with steel strength used in everyday, plasticity and
The performances such as welding are preferably coordinated.
Embodiment 2
The present embodiment and the structure of embodiment 1 are essentially identical, and difference is：Valve body 1 uses DN1000 butterfly valve.Together
When welded type short tube 2 length use 50 centimetres.
Embodiment 3
In the present embodiment, in order to aid in welded type short tube 2 to be easy to align with welding, there is provided an assisted calibration structure
3.As shown in figure 4, the structure includes key seat 31, shank 32, key seat 31 is welded in the outer wall of welded type short tube 2 and in welding
The body marginal position of formula short tube 2, then activity is plugged in the key seat 31 shank 32, when mounted, at least one key seat 31
Highest cusp position in the welded type short tube 2.Preferably with three, highest cusp position and both sides are respectively at
Cusp position, correction is played a part of to welded type short tube 2.
When mounted, shank 32 is slided first, it is protruding to the outer rim of welded type short tube 2, valve body is being put into
During between two sections of external pipes, when the shank 32 of the both sides of welded type short tube 2 can play a part of guiding, top edge with it is external
When the top edge of pipeline flushes, shank 32 can play position-limiting action.
After welded type short tube 2 is aligned with external pipe, welded.
Welded type large bore valves provided by the utility model are in leak detection, using valve both sides blind plate external force clamped-in style
Leak detection is suppressed, saves body welded flange time, expense and pairing blind plate pad time cost.
It should be appreciated that the purposes of these embodiments is merely to illustrate the utility model and is not intended to limit of the present utility model
Protection domain.In addition, it should also be understood that, after technology contents of the present utility model have been read, those skilled in the art can be right
The utility model makees various change, modification and/or variation, and all these equivalent form of values equally fall within right appended by the application will
Ask within the protection domain that book limited.
Claims (8)
1. a kind of welded type large bore valves, including valve body, the valve body have valve pocket passage, it is characterised in that：
The both sides of the valve body are integrally formed with to the welded type short tube with pipeline welding, the welded type short tube and the valve
Chamber passage connects.
A kind of 2. welded type large bore valves as claimed in claim 1, it is characterised in that：The valve body uses DN1000
Or more blank-plate valve, push-pull valve, butterfly valve or gate valve.
A kind of 3. welded type large bore valves as claimed in claim 1, it is characterised in that：The welded type short tube casting is set
In the both sides of the valve body.
A kind of 4. welded type large bore valves as claimed in claim 1, it is characterised in that：The welded type short tube and the valve
Chamber passage is coaxially set.
A kind of 5. welded type large bore valves as claimed in claim 1, it is characterised in that：The length of the welded type short tube is
20-50 centimetres.
A kind of 6. welded type large bore valves as claimed in claim 1, it is characterised in that：The outer wall of the welded type short tube is set
Anticorrosive coat is equipped with, and one end outer rim away from the valve body is provided with welded bands.
A kind of 7. welded type large bore valves as claimed in claim 6, it is characterised in that：The welded bands are a circle groove.
A kind of 8. welded type large bore valves as claimed in claim 1, it is characterised in that：The welded type short tube uses Q235
Steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720767390.4U CN206988498U (en) | 2017-06-28 | 2017-06-28 | A kind of welded type large bore valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720767390.4U CN206988498U (en) | 2017-06-28 | 2017-06-28 | A kind of welded type large bore valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206988498U true CN206988498U (en) | 2018-02-09 |
Family
ID=61399093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720767390.4U Active CN206988498U (en) | 2017-06-28 | 2017-06-28 | A kind of welded type large bore valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206988498U (en) |
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2017
- 2017-06-28 CN CN201720767390.4U patent/CN206988498U/en active Active
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