CN208635137U - The fuel lance structure for preventing nozzle oil leak of mechanical atomization return flow control - Google Patents
The fuel lance structure for preventing nozzle oil leak of mechanical atomization return flow control Download PDFInfo
- Publication number
- CN208635137U CN208635137U CN201820576059.9U CN201820576059U CN208635137U CN 208635137 U CN208635137 U CN 208635137U CN 201820576059 U CN201820576059 U CN 201820576059U CN 208635137 U CN208635137 U CN 208635137U
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- Prior art keywords
- oil
- clot
- confluence block
- block
- safety valve
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- 239000000446 fuel Substances 0.000 title claims abstract description 48
- 238000000889 atomisation Methods 0.000 title claims abstract description 16
- 239000007921 spray Substances 0.000 claims abstract description 45
- 238000009987 spinning Methods 0.000 claims abstract description 19
- 239000000919 ceramic Substances 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 177
- 239000000295 fuel oil Substances 0.000 abstract description 28
- 230000000694 effects Effects 0.000 description 7
- 238000005336 cracking Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Abstract
A kind of fuel lance structure for preventing nozzle oil leak of mechanical atomization return flow control, include the block that converges, oil inlet pipe pressure safety valve, oil return pipe pressure safety valve, oil return pipe, spray gun shell, oil inlet pipe, divide oil clot, divide oil clot pressure safety valve, oil inlet and oil return opening, the spray gun outer casing back, which is equipped with, divides oil clot, front end is equipped with confluence block, it is equipped with oil return pipe and oil inlet pipe in parallel between described point of oil clot and confluence block, the block that converges is interior to be equipped with converge block oil returning tube and the oil clot inflow pipeline that converges, the remittance oil clot inflow pipeline connection oil inlet pipe and splitter and spinning disk, the confluence block oil returning tube connection oil return pipe and splitter and and remittance oil clot；The utility model structure is simple as a result, easy to operate, and pressure security valve arrangement is arranged in the fuel lance of return flow control, opens in the case where fuel oil has certain pressure.When burner stops working, that is, when fuel oil no pressure, pressure safety valve is closed, and guarantees the fuel oil No leakage in spray gun.
Description
Technical field
The utility model relates to prevent the technical field of the fuel lance structure of nozzle oil leak more particularly to a kind of mechanical mist
Change the fuel lance structure for preventing nozzle oil leak of return flow control.
Background technique
Mechanical atomization fuel lance when in use, in order to reach good atomizing effect, needs to guarantee that gun nozzle has
Certain fuel-oil atmozation pressure.In order to which fuel lance has biggish adjusting ratio, and guarantee the atomizing effect under different distributive values,
It needs using return flow oil flow control.
The fuel lance controlled using return flow can be had certain fuel oil in spray gun, be stopped working in burner
When, the fuel oil in spray gun can be flowed in burner hearth by nozzle, to cause the damage to burner hearth refractory material, and be easy to appear peace
Full hidden danger.
For this purpose, the designer of the utility model, in view of drawbacks described above, by concentrating on studies and designing, synthesis is long-term for many years
It is engaged in the experience and achievement of related industry, researching and designing goes out a kind of combustion for preventing nozzle oil leak of mechanical atomization return flow control
Oily spray gun structure, to overcome drawbacks described above.
Utility model content
The purpose of this utility model is to provide a kind of fuel oils for preventing nozzle oil leak of mechanical atomization return flow control
Spray gun structure, structure is simple, easy to operate, and pressure security valve arrangement is arranged in the fuel lance of return flow control,
Fuel oil is opened in the case where having certain pressure.When burner stops working, that is, when fuel oil no pressure, pressure safety valve is closed
It closes, guarantees the fuel oil No leakage in spray gun.
To achieve the above object, nozzle oil leak is prevented the utility model discloses a kind of control of mechanical atomization return flow
Fuel lance structure, comprising spray head locknut, atomizer, spinning disk, splitter, confluence block, oil inlet pipe pressure safety valve, return
Tubing pressure safety valve, spray gun shell, oil inlet pipe, divides oil clot, divides oil clot pressure safety valve, oil inlet and oil return opening oil return pipe,
It is characterized by:
The spray gun shell is tubular structure, and its rear end, which is equipped with, divides oil clot, and front end is equipped with confluence block, described to divide oil clot and remittance
It flows and is equipped with oil return pipe and oil inlet pipe between block in parallel, described that oil clot is divided to be equipped with oil inlet and oil return opening, the oil inlet is by dividing
Inflow pipeline in oil clot is connected to oil inlet pipe, and the oil return opening is by dividing the oil returning tube in oil clot to be connected to oil return pipe, institute
The front outer for stating confluence block is connected with spray head locknut, contracts atomizer, eddy flow in the front end of the spray head locknut successively
Piece and splitter are fixed on the front end of confluence block, and the oil returning tube divided in oil clot, which is equipped with, divides oil clot pressure safety valve；
Wherein, equipped with confluence block oil returning tube and the oil clot inflow pipeline that converges in confluence block, the remittance oil clot inflow pipeline connects
Logical oil inlet pipe and splitter and spinning disk, the confluence block oil returning tube connection oil return pipe and splitter and the oil clot that converges, and
It is equipped with oil return pipe pressure safety valve in the confluence block oil returning tube, is equipped with oil inlet pipe pressure in the remittance oil clot inflow pipeline and pacifies
Full valve.
Wherein: the confluence block oil returning tube includes confluence block oil return hole and confluence block oil return opening, the confluence block oil return
Mouth is connected to oil return pipe, and the confluence block oil return hole is connected to the oil return hole of the center setting of spinning disk and splitter, the remittance
It flows block oil return opening and confluence block oil return hole is interconnected and is equipped with oil return pipe pressure safety valve between the two.
Wherein: the remittance oil clot inflow pipeline includes confluence block fuel feed hole and confluence block oil inlet, the confluence block oil inlet
Mouth is connected to oil inlet pipe, and the confluence block fuel feed hole is connected to splitter and spinning disk, the confluence block oil inlet and confluence block
Fuel feed hole is interconnected and is equipped with oil inlet pipe pressure safety valve between the two.
Wherein: the rear end for dividing oil clot is additionally provided with blast gun handle.
Wherein: the oil inlet pipe pressure safety valve or oil return pipe pressure safety valve divide oil clot pressure safety valve to include ceramics
Ball, spring, spool and valve seat, the valve seat is interior to be equipped with the stepped hole being placed in for spool, and the interior aperture of the stepped hole can be for valve
The bar portion at core rear portion protrudes into, and the outer macropore of the stepped hole is placed in for the ball seat of spool front, and the ball seat is equipped with for Ceramic Balls
The groove of merging, and spring is cased in the bar portion of the spool, the both ends of the spring bear against in ball seat and stepped hole it
Between.
Wherein: the ladder hole peripheral of the valve seat is equipped with side wall inclined hole.
Wherein: the valve seat is equipped with flange, and the front end of the flange is equipped with aluminium cushion block in pressure safety valve and outside
Sealing function is provided when connection.
By above structure it is found that the fuel oil for preventing nozzle oil leak that the mechanical atomization return flow of the utility model controls
Spray gun structure has the effect that
1, guarantee good fuel atomization effect --- return flow control, can the different fuel injection amounts the case where,
Maintain the fuel-oil atmozation pressure at nozzle constant, to realize good mechanical atomization effect.
2, spray gun fuel leakage is prevented --- oil inlet pipe pressure safety valve and 7 oil return pipe pressures peace are set in fuel lance
Full valve, pressure safety valve is in close state before fuel oil reaches certain pressure, is guaranteed when burner stops working, in spray gun
Fuel oil leakage will not be generated into burner hearth.
3, preventing from forming air cavity in spray gun --- setting divides oil clot pressure safety valve, prevents when burner stops working,
Fuel oil is back in storage tank in spray gun, forms air cavity when preventing from being again started up in spray gun, prevents influence of the air cavity to distributive value.
The detailed content of the utility model can be obtained by aftermentioned explanation and institute's attached drawing.
Detailed description of the invention
Fig. 1 shows the fuel lance structure for preventing nozzle oil leak of the mechanical atomization return flow control of the utility model
Structural schematic diagram.
Fig. 2 shows the A-A sectional view of Fig. 1.
Fig. 3 shows the rear end structure of the fuel lance of the utility model.
Fig. 4 shows the pressure security valve arrangement of the fuel lance of the utility model.
1 spray head locknut, 2 atomizers, 3 spinning disks, 4 splitters, 5 confluence blocks, 6 oil inlet pipe pressure safety valves, 7 oil return pipes
Pressure safety valve, 8 oil return pipes, 9 spray gun shells, 10 oil inlet pipes, 11 points of oil clots, 12 points of oil clot pressure safety valves, 13 spray gun handles
Hand, 14 oil inlets, 15 oil return openings, 16 confluence block oil return holes, 17 confluence block fuel feed holes, 18 confluence block oil inlets, 19 confluence blocks
Oil return aperture, 20 Ceramic Balls, 21 aluminium cushion blocks, 22 springs, 23 spools, 24 valve seats.
Specific embodiment
Specific embodiment of the present utility model is further described with reference to the accompanying drawings and examples, following embodiment
It is only used for clearly illustrating the technical solution of the utility model, and cannot be used as a limitation the protection model of limitation the utility model
It encloses.
Referring to shown in Fig. 1, Fig. 2, Fig. 3, it is shown that the mechanical atomization return flow control of the utility model prevents nozzle
The fuel lance structure of oil leak, wherein fuel lance structure may include spray head locknut 1, atomizer 2, spinning disk 3, splitter
4, converge block 5, oil inlet pipe pressure safety valve 6, oil return pipe pressure safety valve 7, oil return pipe 8, spray gun shell 9, oil inlet pipe 10, point
Oil clot 11 divides oil clot pressure safety valve 12, blast gun handle 13, oil inlet 14, oil return opening 15, confluence block oil return hole 16, confluence block
Fuel feed hole 17, confluence block oil inlet 18 and confluence block oil return opening 19.
The spray gun shell 9 is tubular structure, and its rear end, which is equipped with, divides oil clot 11, and front end is equipped with confluence block 5, described to divide oil clot
Oil return pipe 8 and oil inlet pipe 10 are equipped between 11 and confluence block 5 in parallel, it is described that oil clot 11 is divided to be equipped with oil inlet 14 and oil return opening 15,
The oil inlet 14 is connected to oil inlet pipe 10 by the inflow pipeline divided in oil clot 11, and the oil return opening 15 is by dividing oil clot 11
Interior oil returning tube is connected to oil return pipe 8, and the front outer of the confluence block 5 is connected with spray head locknut 1, the spray head locknut 1
The external screw thread that confluence 5 front outer of block can be engaged in by the internal screw thread of rear portion inner edge is attached, before the spray head locknut 1
It contracts in end and atomizer 2, spinning disk 3 and splitter 4 is successively fixed on to the front end (as illustrated in fig. 1 and 2) of confluence block 5, institute
It states the oil returning tube in point oil clot 11 and is equipped with and divide oil clot pressure safety valve 12.
Wherein, confluence block oil return hole 16, confluence block fuel feed hole 17, confluence block oil inlet 18 and confluence are equipped in confluence block 5
Block oil return opening 19, the confluence block oil inlet 18 are connected to oil inlet pipe 10, and the confluence block fuel feed hole 17 is connected to 4 He of splitter
Spinning disk 3, the confluence block oil inlet 18 and confluence block fuel feed hole 17, which are interconnected and are equipped with oil inlet pipe pressure between the two, pacifies
Full valve 6, so that the fuel oil for having operating pressure enters spray gun by oil inlet 14, through oil inlet pipe 10 in fuel lance work
Into confluence block 5, oil inlet pipe pressure safety valve 6 is reached by confluence block oil inlet 18 in the inside of confluence block 5, works as fuel oil service
Pressure is greater than the cracking pressure of oil inlet pipe pressure safety valve 6, and oil inlet pipe pressure safety valve 6 is opened, and fuel oil passes through inside confluence block 5
Confluence block fuel feed hole 17 (dotted line hole) sequentially enter splitter 4 and spinning disk 3, finally by atomizer 2 spray.
Wherein, the confluence block oil return opening 19 is connected to oil return pipe 8, and the confluence block oil return hole 16 is connected to spinning disk 3
The oil return hole being arranged with the center of splitter 4, the confluence block oil return opening 19 is interconnected with confluence block oil return hole 16 and the two
Between be equipped with oil return pipe pressure safety valve 7, so that fuel oil in the spray gun is sprayed through spinning disk 3 in atomizer 2, pass through simultaneously
Spinning disk 3 and splitter 4 are connected with the oil return line in spray gun, are arranged at the center of 3 spinning disks and 4 splitters respectively
Oil return hole makes the oil return part of fuel oil be again introduced into confluence block 5 by oil return hole.
Oil return fuel oil reaches oil return pipe pressure safety valve 7 by the confluence block oil return hole 16 inside confluence block 5, because oil return is fired
Oil pressure is greater than the cracking pressure of oil return pipe pressure safety valve 7, therefore oil return pipe pressure safety valve 7 is opened, and fuel oil passes through confluence block 5
Internal confluence block oil return opening (dotted line hole) enters oil return pipe 8.
Oil return fuel oil is again introduced into point oil clot 11 by oil return pipe 8, and reaches at point oil clot pressure safety valve 12.Because of oil return
Pressure is greater than the cracking pressure for dividing oil clot pressure safety valve 12, therefore oil clot pressure safety valve 12 is divided to open, and oil return fuel oil is through oil return
Mouth 15 is discharged.
Wherein, the rear end for dividing oil clot 11 can also be equipped with blast gun handle 13, in order to which operator holds and grasps
Make.
Referring to fig. 4, it is shown that for the pressure security valve arrangement in this patent fuel lance, the oil inlet pipe pressure security
Valve 6, oil return pipe pressure safety valve 7 and divide the structure of oil clot pressure safety valve 12 identical, may include Ceramic Balls 20, aluminium cushion block
21, spring 22, spool 23 and valve seat 24, are equipped with the stepped hole being placed in for spool 23 in the valve seat 24, the stepped hole it is interior
Aperture can be protruded into for the bar portion at 23 rear portion of spool, and the outer macropore of the stepped hole is placed in for the ball seat of 23 front of spool, the ball
Seat is equipped with the groove being placed in for Ceramic Balls 20, and spring 22 is cased in the bar portion of the spool 23, the both ends difference of the spring
It is resisted against between ball seat and stepped hole, the ladder hole peripheral of the valve seat 24 is equipped with side wall inclined hole, to stop working in spray gun
When, Ceramic Balls 20 and fuel path hole are in close contact, and prevent fuel leakage.When spray gun work, fuel pressure is greater than safety valve
Cracking pressure when, that is, be greater than 22 elastic force of spring when, spool 23 moves back, the excess fuel in valve seat 24 pass through valve seat 24
The discharge of side wall inclined hole, while Ceramic Balls 20 being driven to move back, oil circuit is opened.
Wherein, the front outer of the valve seat 24 is equipped with the external screw thread being connected and fixed, and is equipped at externally threaded rear convex
The front end of edge, the flange is equipped with aluminium cushion block 21, to provide sealing function in pressure safety valve and external connection.
It can be seen that utility model has the advantages that
1, guarantee good fuel atomization effect --- return flow control, can the different fuel injection amounts the case where,
Maintain the fuel-oil atmozation pressure at nozzle constant, to realize good mechanical atomization effect.
2, spray gun fuel leakage is prevented --- oil inlet pipe pressure safety valve and 7 oil return pipe pressures peace are set in fuel lance
Full valve, pressure safety valve is in close state before fuel oil reaches certain pressure, is guaranteed when burner stops working, in spray gun
Fuel oil leakage will not be generated into burner hearth.
3, preventing from forming air cavity in spray gun --- setting divides oil clot pressure safety valve, prevents when burner stops working,
Fuel oil is back in storage tank in spray gun, forms air cavity when preventing from being again started up in spray gun, prevents influence of the air cavity to distributive value.
It is readily apparent that above description and record is only citing rather than in order to limit the disclosure of the utility model
Content, application or use.Although describing and being described in the accompanying drawings embodiment, the utility model in embodiment
Do not limit by attached drawing example and be described as in embodiment it is now recognized that optimal mode to implement the religion of the utility model
The specific examples led, the scope of the utility model will include any implementation for falling into the description and appended claims of front
Example.
Claims (7)
1. a kind of fuel lance structure for preventing nozzle oil leak of mechanical atomization return flow control, includes spray head locknut, atomization
Nozzle, spinning disk, splitter, confluence block, oil inlet pipe pressure safety valve, oil return pipe pressure safety valve, oil return pipe, spray gun shell,
Oil inlet pipe divides oil clot, divides oil clot pressure safety valve, oil inlet and oil return opening, it is characterised in that:
The spray gun shell is tubular structure, and its rear end, which is equipped with, divides oil clot, and front end is equipped with confluence block, described to divide oil clot and confluence block
Between in parallel be equipped with oil return pipe and oil inlet pipe, it is described divide oil clot be equipped with oil inlet and oil return opening, the oil inlet is by dividing oil clot
Interior inflow pipeline is connected to oil inlet pipe, and the oil return opening is by dividing the oil returning tube in oil clot to be connected to oil return pipe, the remittance
Stream block front outer be connected with spray head locknut, contract in the front end of the spray head locknut successively by atomizer, spinning disk and
Splitter is fixed on the front end of confluence block, and the oil returning tube divided in oil clot, which is equipped with, divides oil clot pressure safety valve；
Wherein, confluence block in be equipped with confluence block oil returning tube and converge oil clot inflow pipeline, the remittance oil clot inflow pipeline be connected into
Oil pipe and splitter and spinning disk, the confluence block oil returning tube connection oil return pipe and splitter and the oil clot that converges, and it is described
The block oil returning tube that converges is interior to be equipped with oil return pipe pressure safety valve, is equipped with oil inlet pipe pressure security in the remittance oil clot inflow pipeline
Valve.
2. fuel lance structure as described in claim 1, it is characterised in that: the confluence block oil returning tube includes that confluence block returns
Oilhole and confluence block oil return opening, the confluence block oil return opening are connected to oil return pipe, and the confluence block oil return hole is connected to spinning disk
The oil return hole being arranged with the center of splitter, the confluence block oil return opening and confluence block oil return hole are interconnected and set between the two
There is oil return pipe pressure safety valve.
3. fuel lance structure as described in claim 1, it is characterised in that: the remittance oil clot inflow pipeline include confluence block into
Oilhole and confluence block oil inlet, the confluence block oil inlet are connected to oil inlet pipe, and the confluence block fuel feed hole is connected to splitter
And spinning disk, the confluence block oil inlet and confluence block fuel feed hole are interconnected and are equipped with oil inlet pipe pressure security between the two
Valve.
4. fuel lance structure as described in claim 1, it is characterised in that: the rear end for dividing oil clot is additionally provided with spray gun handle
Hand.
5. fuel lance structure as described in claim 1, it is characterised in that: the oil inlet pipe pressure safety valve or oil return pipe pressure
Power safety valve divides oil clot pressure safety valve to include Ceramic Balls, spring, spool and valve seat, is equipped in the valve seat and is placed in for spool
Stepped hole, the interior aperture of the stepped hole can be protruded into for the bar portion at spool rear portion, before the outer macropore of the stepped hole is for spool
The ball seat in portion is placed in, and the ball seat is equipped with the groove being placed in for Ceramic Balls, and spring is cased in the bar portion of the spool, the bullet
The both ends of spring are born against between ball seat and stepped hole.
6. fuel lance structure as claimed in claim 5, it is characterised in that: it is oblique that the ladder hole peripheral of the valve seat is equipped with side wall
Hole.
7. fuel lance structure as claimed in claim 5, it is characterised in that: the valve seat is equipped with flange, before the flange
End is equipped with aluminium cushion block to provide sealing function in pressure safety valve and external connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820576059.9U CN208635137U (en) | 2018-04-23 | 2018-04-23 | The fuel lance structure for preventing nozzle oil leak of mechanical atomization return flow control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820576059.9U CN208635137U (en) | 2018-04-23 | 2018-04-23 | The fuel lance structure for preventing nozzle oil leak of mechanical atomization return flow control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208635137U true CN208635137U (en) | 2019-03-22 |
Family
ID=65732496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820576059.9U Active CN208635137U (en) | 2018-04-23 | 2018-04-23 | The fuel lance structure for preventing nozzle oil leak of mechanical atomization return flow control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208635137U (en) |
-
2018
- 2018-04-23 CN CN201820576059.9U patent/CN208635137U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240403 Address after: No. 12 Yinghua Road, Yongqing Industrial Park, Yongqing County, Langfang City, Hebei Province, 065699 Patentee after: LANGFANG D&G MACHINERY TECHNOLOGY Co.,Ltd. Country or region after: China Address before: No.12, Yinghua Road, Yongqing Industrial Park, Langfang City, Hebei Province 065699 Patentee before: LANGFANG AOBISHEN THERMAL ENERGY TECHNOLOGY CO.,LTD. Country or region before: China |