CN206469921U - A kind of finish forge formula heavy caliber Venturi tube - Google Patents
A kind of finish forge formula heavy caliber Venturi tube Download PDFInfo
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- CN206469921U CN206469921U CN201720164031.XU CN201720164031U CN206469921U CN 206469921 U CN206469921 U CN 206469921U CN 201720164031 U CN201720164031 U CN 201720164031U CN 206469921 U CN206469921 U CN 206469921U
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- segment pipe
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- pipeline
- throat
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Abstract
The utility model discloses a kind of finish forge formula heavy caliber Venturi tube, including upstream straight length, venturi socket section and downstream straight length, venturi socket section includes the straight segment pipe of entrance, Entrance Convergence segment pipe, throat's pipeline, outlet diffusion segment pipe；Entrance is straight, and segment pipe is disposed with screen pack locating groove from outside to inside away from Entrance Convergence segment pipe end, first sealing ring mounting groove and the first adpting flange, screen pack locating groove and the first sealing ring mounting groove are arranged on the outer surface of the straight segment pipe of entrance, entrance is straight segment pipe, Entrance Convergence segment pipe, throat's pipeline, are coated with non-corrosive metal (NCM) layer on the internal face of outlet diffusion segment pipe；The obturator clean-up port of projection is wholely set on throat's pipeline, obturator clean-up port outer end is provided with external screw thread, and obturator clean-up port outer end is threaded with sealing nut.Above-mentioned technical proposal, reasonable in design, simple in construction, obturator cleaning convenience, internal face be not perishable, and service life is long.
Description
Technical field
The utility model is related to technical field of nuclear power, and in particular to a kind of finish forge formula heavy caliber Venturi tube.
Background technology
DN500mm nuclear powers factory owner feedwater Venturi tube component, belongs to non-core level equipment, 4 groups of pressures is set in its main body
Mouthful, every group of pressure tappings are shared by a bottom range and a high range differential pressure transmitter, to obtain the survey of accurate feedwater flow
Amount, the component is made up of upstream straight length, venturi pipeline section and downstream straight length.
But, existing Venturi tube segment structure also Shortcomings：The throat portion of existing venturi pipeline section is easily blocked,
Obturator is difficult to clear up, in-convenience in use；And the internal face of Venturi tube easily corrodes, service life is short.
The content of the invention
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of reasonable in design, structure
Simply, obturator cleaning convenience, internal face be not perishable, easy to use and service life length finish forge formula heavy caliber venturi
Pipe.
To achieve the above object, the utility model provides following technical scheme：A kind of finish forge formula heavy caliber Venturi tube,
Including upstream straight length, venturi socket section and downstream straight length, the venturi socket section includes the straight segment pipe of entrance, entered
Mouth convergence segment pipe, throat's pipeline, outlet diffusion segment pipe；The straight segment pipe of entrance away from Entrance Convergence segment pipe end from
It is outer to be disposed with screen pack locating groove, the first sealing ring mounting groove and the first adpting flange, the screen pack positioning to interior
Neck and the first sealing ring mounting groove are arranged on the outer surface of the straight segment pipe of entrance, and the first adpting flange and entrance are straight
Segment pipe is wholely set；The straight segment pipe of entrance, Entrance Convergence segment pipe, throat's pipeline, outlet diffusion segment pipe one
Set, and be coated with the straight segment pipe of entrance, Entrance Convergence segment pipe, throat's pipeline, the internal face of outlet diffusion segment pipe
Non-corrosive metal (NCM) layer；The obturator clean-up port of projection is wholely set on throat's pipeline, obturator clean-up port outer end is set
External screw thread is equipped with, and obturator clean-up port outer end is threaded with sealing nut.
By using above-mentioned technical proposal, entrance is straight, and segment pipe can install existing away from Entrance Convergence segment pipe end
Screen pack, screen pack enters to fluid to be filtered between the straight segment pipe of entrance so that throat's pipeline is difficult obstruction；Obturator
Clean-up port position sets reasonable, and outwarding winding can clear up the obturator in throat's pipeline after sealing nut；Entrance flat segments pipe
Road, Entrance Convergence segment pipe, throat's pipeline, outlet, which are spread, is coated with non-corrosive metal (NCM) layer, structure design on the internal face of segment pipe
Rationally, the cleaning of simple in construction, obturator is convenient, internal face is not perishable, easy to use and service life is long.
The step of the utility model one is set to：Non-corrosive metal (NCM) layer is 304 stainless steel layers, and the thickness of non-corrosive metal (NCM) layer is
0.2—0.5mm.By this setting, non-corrosive metal (NCM) layer Corrosion Protection is good, and service life is long.
The utility model also step is set to：Retaining spring is socketed with the obturator clean-up port, the retaining spring
The inner compresses throat's pipeline external surface, and sealing nut inner face is withstood in the outer end of retaining spring.By this setting, retaining spring is set
Put rationally, sealing nut connection is reliable.
The utility model also step is set to：The outlet diffusion segment pipe is set successively from outside to inside away from throat's pipe end
The second sealing ring mounting groove and the second adpting flange are equipped with, second sealing ring mounting groove and the second adpting flange are arranged at
On the outer surface of outlet diffusion segment pipe, and the second adpting flange is wholely set with outlet diffusion segment pipe.Pass through this setting, knot
It is more reasonable that structure is set, and sealing property is more preferable.
The utility model also step is set to：It is wholely set on the non-corrosive metal (NCM) layer internal face of the straight segment pipe of entrance
There are multiple locating convex blocks, and shape is uniformly distributed polylith locating convex block in a ring.By this setting, locating convex block can be to screen pack
Play a part of positioning.
The utility model also step is set to：The straight segment pipe of entrance was socketed with away from Entrance Convergence segment pipe end
Filter screen.By this setting, screen pack sets reasonable, good filtration effect.
The utility model also step is set to：The screen pack is metal filter screen, and the edge bending of the screen pack is set
Put, and the bending part of screen pack is caught in screen pack locating groove.By this setting, it is more reasonable that filter screen structure is set, even
Connect reliable.
The utility model also step is set to：The screen pack is 304 stainless steel filter screens.By this setting, it is manufactured into
This is low, and service life is long.
The utility model also step is set to：The upstream straight length is bolted fixation with venturi socket section,
Venturi socket section is bolted fixation with downstream straight length.By this setting, easy to connect between each section, fixation can
Lean on, it is easy to maintenance.
The utility model has the advantages that：Compared with prior art, the utility model structure setting is more reasonable, and entrance is straight
Segment pipe can install existing screen pack away from Entrance Convergence segment pipe end, and screen pack enters the straight segment pipe of entrance to fluid
Between filtered so that throat's pipeline be difficult obstruction；Obturator clean-up port position sets reasonable, and outwarding winding can be right after sealing nut
Obturator in throat's pipeline is cleared up；Entrance is straight segment pipe, Entrance Convergence segment pipe, throat's pipeline, outlet diffuser
Non-corrosive metal (NCM) layer is coated with the internal face of pipeline, reasonable in design, simple in construction, obturator clear up convenient, internal face not
It is perishable, it is easy to use and service life is long.
With reference to Figure of description and specific embodiment, the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment；
Fig. 2 is the structural representation of the utility model embodiment venturi socket section；
Fig. 3 is the enlarged diagram in I portions in Fig. 2.
Embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of finish forge formula heavy caliber Venturi tube disclosed in the utility model, including upstream are straight
Pipeline section a, venturi socket section b and downstream straight length c, the venturi socket section b include the straight segment pipe 1 of entrance, entrance receipts
Hold back segment pipe 2, throat's pipeline 3, outlet diffusion segment pipe 4；The straight segment pipe 1 of entrance deviates from the end of Entrance Convergence segment pipe 2
Screen pack locating groove 11, the first sealing ring mounting groove 12 and the first adpting flange 13, the mistake are disposed with from outside to inside
The sealing ring mounting groove 12 of filter screen locating groove 11 and first is arranged on the outer surface of the straight segment pipe 1 of entrance, the first connection
Flange 13 is wholely set with the straight segment pipe of entrance 1；The straight segment pipe 1 of entrance, Entrance Convergence segment pipe 2, throat's pipeline
3rd, diffusion segment pipe 4 in outlet is wholely set, and the straight segment pipe 1 of entrance, Entrance Convergence segment pipe 2, throat's pipeline 3, outlet expansion
Non-corrosive metal (NCM) layer 5 is coated with the internal face for dissipating segment pipe 4；The obturator that projection is wholely set on throat's pipeline 3 is clear
Mouth 31 is managed, the outer end of obturator clean-up port 31 is provided with external screw thread, and the outer end of obturator clean-up port 31 is threaded with sealing
Nut 6.
As preferred, the non-corrosive metal (NCM) layer 5 is 304 stainless steel layers, and the thickness of non-corrosive metal (NCM) layer 5 for 0.2-
0.5mm。
Retaining spring 7 is socketed with the obturator clean-up port 31, the inner of the retaining spring 7 is compressed outside throat's pipeline 3
Withstand the inner face of sealing nut 6 in surface, the outer end of retaining spring 7.
The outlet diffusion segment pipe 4 is disposed with the second sealing ring mounting groove from outside to inside away from the end of throat's pipeline 3
41 and second adpting flange 42, the adpting flange 42 of the second sealing ring mounting groove 41 and second is arranged at outlet diffuser pipe
On the outer surface in road 4, and the second adpting flange 42 is wholely set with outlet diffusion segment pipe 4.
Multiple locating convex blocks 14 have been wholely set on the non-corrosive metal (NCM) layer internal face of the straight segment pipe 1 of entrance, and it is many
Shape is uniformly distributed block locating convex block 14 in a ring.
The straight segment pipe 1 of entrance is socketed with screen pack 8 away from the end of Entrance Convergence segment pipe 2.The screen pack 8 is gold
Belong to screen pack, the edge bending of the screen pack 8 is set, and the bending part of screen pack 8 is caught in screen pack locating groove 11.
The screen pack 8 is 304 stainless steel filter screens.
The upstream straight length a is bolted fixation with venturi socket section b, and venturi socket section b and downstream are straight
Pipeline section c is bolted fixation.
Overall forging finishing, forging uses ESR ingot, enhances the density of material, improve machining accuracy；So that literary
The roughness of venturi endoporus can reach Ra0.2 or so, and its overall uncertainty can reach ± 0.118%-± 0.125%.
During practical application, entrance is straight, and segment pipe can install existing screen pack, mistake away from Entrance Convergence segment pipe end
Filter screen enters to fluid to be filtered between the straight segment pipe of entrance so that throat's pipeline is difficult obstruction；Obturator clean-up port position
Install rationally, outwarding winding can clear up the obturator in throat's pipeline after sealing nut；Entrance is straight segment pipe, entrance receipts
Hold back segment pipe, throat's pipeline, outlet diffusion segment pipe internal face on be coated with non-corrosive metal (NCM) layer, reasonable in design, structure
Simply, obturator cleaning is convenient, internal face is not perishable, easy to use and service life is long.
Above-described embodiment is specifically described to of the present utility model, is served only for that the utility model is further described, no
It is understood that as the restriction to the utility model protection domain, the technician of this area is according to the content pair of above-mentioned utility model
The utility model is made some nonessential modifications and adaptations and each fallen within protection domain of the present utility model.
Claims (9)
1. a kind of finish forge formula heavy caliber Venturi tube, including upstream straight length (a), venturi socket section (b) and downstream straight length
(c), venturi socket section (b) includes the straight segment pipe of entrance (1), Entrance Convergence segment pipe (2), throat's pipeline (3), gone out
Mouth diffusion segment pipe (4)；It is characterized in that：The straight segment pipe of entrance (1) away from Entrance Convergence segment pipe (2) hold from outside to
Inside it is disposed with screen pack locating groove (11), the first sealing ring mounting groove (12) and the first adpting flange (13), the mistake
Filter screen locating groove (11) and the first sealing ring mounting groove (12) are arranged on the outer surface of the straight segment pipe of entrance (1), the
One adpting flange (13) is wholely set with the straight segment pipe of entrance (1)；The straight segment pipe of entrance (1), Entrance Convergence section pipe
Road (2), throat's pipeline (3), outlet diffusion segment pipe (4) are wholely set, and the straight segment pipe of entrance (1), Entrance Convergence section pipe
Road (2), throat's pipeline (3), outlet, which are spread, is coated with non-corrosive metal (NCM) layer (5) on the internal face of segment pipe (4)；Throat's pipeline
(3) the obturator clean-up port (31) of projection is wholely set on, obturator clean-up port (31) outer end is provided with external screw thread, and
Obturator clean-up port (31) outer end is threaded with sealing nut (6).
2. a kind of finish forge formula heavy caliber Venturi tube according to claim 1, it is characterised in that：The non-corrosive metal (NCM) layer
(5) it is 304 stainless steel layers, and the thickness of non-corrosive metal (NCM) layer (5) is 0.2-0.5mm.
3. a kind of finish forge formula heavy caliber Venturi tube according to claim 2, it is characterised in that：The obturator clean-up port
(31) retaining spring (7) is socketed with, the inner of the retaining spring (7) is compressed outside throat's pipeline external surface, retaining spring (7)
Withstand sealing nut (6) inner face in end.
4. a kind of finish forge formula heavy caliber Venturi tube according to claim 3, it is characterised in that：The outlet diffuser pipe
Road (4) is disposed with the second sealing ring mounting groove (41) and the second adpting flange from outside to inside away from throat's pipeline (3) end
(42), second sealing ring mounting groove (41) and the second adpting flange (42) are arranged at the outer of outlet diffusion segment pipe (4)
On surface, and the second adpting flange (42) is wholely set with outlet diffusion segment pipe (4).
5. a kind of finish forge formula heavy caliber Venturi tube according to claim 1 or 4, it is characterised in that：The entrance is straight
Multiple locating convex blocks (14) have been wholely set on the non-corrosive metal (NCM) layer internal face of segment pipe (1), and polylith locating convex block (14) is in
Ring-shaped is uniformly distributed.
6. a kind of finish forge formula heavy caliber Venturi tube according to claim 5, it is characterised in that：The entrance flat segments pipe
Road (1) is socketed with screen pack (8) away from Entrance Convergence segment pipe (2) end.
7. a kind of finish forge formula heavy caliber Venturi tube according to claim 6, it is characterised in that：The screen pack (8) is
Metal filter screen, the edge bending of the screen pack (8) is set, and the bending part of screen pack (8) is caught in screen pack locating groove
(11) in.
8. a kind of finish forge formula heavy caliber Venturi tube according to claim 7, it is characterised in that：The screen pack (8) is
304 stainless steel filter screens.
9. a kind of finish forge formula heavy caliber Venturi tube according to claim 1, it is characterised in that：The upstream straight length
(a) fixation is bolted with venturi socket section (b), venturi socket section (b) is connected with downstream straight length (c) by bolt
Connect fixation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720164031.XU CN206469921U (en) | 2017-02-23 | 2017-02-23 | A kind of finish forge formula heavy caliber Venturi tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720164031.XU CN206469921U (en) | 2017-02-23 | 2017-02-23 | A kind of finish forge formula heavy caliber Venturi tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206469921U true CN206469921U (en) | 2017-09-05 |
Family
ID=59707859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720164031.XU Active CN206469921U (en) | 2017-02-23 | 2017-02-23 | A kind of finish forge formula heavy caliber Venturi tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206469921U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489743A (en) * | 2018-09-27 | 2019-03-19 | 中山市思源电器有限公司 | A kind of double-venturi tube |
| CN109999287A (en) * | 2019-05-05 | 2019-07-12 | 山东大学第二医院 | Nebulizer is used in a kind of anesthesia |
-
2017
- 2017-02-23 CN CN201720164031.XU patent/CN206469921U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489743A (en) * | 2018-09-27 | 2019-03-19 | 中山市思源电器有限公司 | A kind of double-venturi tube |
| CN109489743B (en) * | 2018-09-27 | 2020-12-04 | 中山市思源电器有限公司 | Double-venturi tube |
| CN109999287A (en) * | 2019-05-05 | 2019-07-12 | 山东大学第二医院 | Nebulizer is used in a kind of anesthesia |
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