CN208919538U - A kind of power station large diameter pipeline closure switching device - Google Patents
A kind of power station large diameter pipeline closure switching device Download PDFInfo
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- CN208919538U CN208919538U CN201821544116.1U CN201821544116U CN208919538U CN 208919538 U CN208919538 U CN 208919538U CN 201821544116 U CN201821544116 U CN 201821544116U CN 208919538 U CN208919538 U CN 208919538U
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- switching device
- large diameter
- power station
- diameter pipeline
- pipeline
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Abstract
A kind of power station large diameter pipeline closure switching device, it is arranged or is not provided with plugging part inside housings, case top is arranged or is not provided with through-flow cover board, plugging part lower part with case contact part is provided with sealing strip, top edge is provided with sealing ring, through-flow side edge thereof is provided with sealing ring, and shell two sides and pipeline are welded to connect；The utility model have the advantages that design rationally, structure is simple, pipeline switching requires, reduces equipment cost, closure switching device field when can promote the use of thermal power plant wet type cooling unit high back pressure heat supply between condenser and heat-net-pipeline and circulating water pipeline when being able to satisfy fired power generating unit high back pressure heat supply.
Description
Technical field
The utility model belongs to heavy caliber water pipe and blocks switching device technical field, and in particular to for thermal power plant
Closure switching device when wet type cooling unit high back pressure heat supply between condenser and heat-net-pipeline and circulating water pipeline.
Background technique
Thermoelectricity wet type cooling unit high back pressure waste heat for supplying is current energy conservation and environmental protection, while that improves economy of power plant benefit has efficacious prescriptions
Formula.But annual heating period condenser heat-net-pipeline and circulating water pipeline be when carrying out for hot-swap, the switching of circulating water pipeline compared with
Complexity, and method is solved perfectly in nothing.
Currently used mode has:
1, mode is blocked using closure plate, that is, cuts off the side ducts not used, nozzle welds closure plate and blocks, while connecting need to
Pipeline to be used, this method switching trouble is long in time limit, needs in same position Rewelding, pipeline can be shorter and shorter, can produce
The trouble of raw piping foundation, but plugging effect is good, will not leak.
2, using valve transfer, large bore valves are set on two-way pipeline, realize switching, this method is easy to operate, cuts
It is short to change the operating time, but is easy to happen leakage, and with high costs.
Summary of the invention
The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art, provide a kind of design rationally,
The power station large diameter pipeline that structure is simple, pipeline switching requires, reduces equipment cost when being able to satisfy fired power generating unit high back pressure heat supply
Block switching device.
Solve above-mentioned technical problem the technical solution adopted is that: be arranged or be not provided with plugging part, shell inside housings
Top is arranged or is not provided with through-flow cover board, and plugging part lower part and case contact part are provided with sealing strip, top edge is arranged
There is sealing ring, through-flow side edge thereof is provided with sealing ring, and shell two sides and pipeline are welded to connect.
The shell of the utility model is hollow U-shaped structure, and lower part of the housing is machined with the guide groove for installing and sealing, shell
Inside is machined with seal groove, and seal groove is set in seal groove perpendicular to gas circulating direction, sealing strip.
The plugging part lower part of the utility model is semicircle convergent T structure, top is to be adapted with upper part of the housing
Flange arrangement, top are provided with lifting lug.
The plugging part side of the utility model is provided with reinforcing rib, and reinforcing rib is in net distribution.
The through-flow cover board of the utility model is rectangular flange structure, top is provided with lifting lug.
The sealing strip of the utility model is U-shaped tank seal strip, and sealing strip is made of rubber material.
The sealing ring of the utility model is the slot type sealing ring adaptable with upper part of the housing flange or through-flow cover board, sealing
Circle is made of rubber material.
The utility model has the advantage that compared with the prior art
1, shell two sides and pipeline are welded to connect, and pipe plugging is tight.
2, it blocks and circulation status switching is simple, when closure, which only needs to be inserted into plugging part, to be pre-tightened, and is taken out when through-flow
Plugging part installs through-flow cover board.
3, low in cost, equipment cost be power station group set valve 1/5th less than.
Condenser and heat-net-pipeline and circulating water pipe when can promote the use of thermal power plant wet type cooling unit high back pressure heat supply
Closure switching device field between road.
Detailed description of the invention
Fig. 1 is the utility model sealed condition structural schematic diagram.
Fig. 2 is the utility model open position structural schematic diagram.
Fig. 3 is the structural schematic diagram of the utility model shell 1.
Fig. 4 is the structural schematic diagram of the utility model plugging part 2.
Fig. 5 is the structural schematic diagram of the through-flow cover board 3 of the utility model.
Fig. 6 is the utility model gasket structure schematic diagram.
Fig. 7 is the utility model ring structure schematic diagram.
In figure: 1, shell；2, plugging part；3, through-flow cover board.
Specific embodiment
The utility model is described in further details with reference to the accompanying drawings and examples, but the utility model is not limited to this
A little embodiments.
Embodiment 1
In Fig. 1, a kind of power station large diameter pipeline of the utility model blocks switching device, when pipe plugging state, in shell
Plugging part 2 is installed inside body 1, is not necessarily to that through-flow cover board 3 is installed at the top of shell 1,1 two sides of shell and pipeline are welded to connect.It blocks
2 lower part of component with 1 contact portion of shell is provided with sealing strip, top edge is provided with sealing ring, as shown in Figure 6,7, this implementation
The sealing strip of example is U-shaped tank seal strip, and sealing strip is made of rubber material, and sealing ring is to be adapted with upper part of the housing flange
Slot type sealing ring, sealing ring are made of rubber material.As shown in figure 3, the shell 1 of the present embodiment is hollow U-shaped structure, shell 1
Lower part is machined with the guide groove for installing and sealing, and seal groove is machined with inside shell 1, seal groove is perpendicular to gas circulation side
To sealing strip is installed in seal groove.As shown in figure 4, plugging part 2 is the convergent T structure of lower semicircular shape, plugging part 2
Top is the flange arrangement being adapted with 1 top of shell, and lifting lug, one ground of progress, plugging part 2 are machined at the top of plugging part 2
Side welding processing has reinforcing rib, and reinforcing rib is in net distribution.It will be arranged inside the insertion shell 1 of plugging part 2 when closure close
In sealing groove, when falling steady at maximum radius, suitable position is tightened to using positioning bolt in advance, by 2 upper flange structure of plugging part
It is synchronous to pre-tighten, at this point, pipeline can be blocked completely to truncation by plugging part 2.
When the utility model open position, 1 two sides of shell and pipeline are welded to connect, without installing closure part inside shell 1
Part 2 is connected and installed with through-flow cover board 3 using bolt fastening at the top of shell 1, and pipeline is unobstructed state at this time, the present embodiment it is logical
Stream cover board 3 is rectangular flange structure, top is provided with lifting lug.Through-flow 3 edge of cover board is provided with sealing ring, sealing ring be with it is through-flow
The adaptable slot type sealing ring of cover board 3, sealing ring are made of rubber material.
Claims (7)
1. a kind of power station large diameter pipeline blocks switching device, it is characterised in that: it is arranged or is not provided with closure part inside housings
Part, case top are arranged or are not provided with through-flow cover board, and plugging part lower part and case contact part are provided with sealing strip, upper edge
Edge is provided with sealing ring, and through-flow side edge thereof is provided with sealing ring, and shell two sides and pipeline are welded to connect.
2. a kind of power station large diameter pipeline according to claim 1 blocks switching device, it is characterised in that: the shell
For hollow U-shaped structure, lower part of the housing is machined with the guide groove for installing and sealing, and enclosure interior is machined with seal groove, seal groove
Perpendicular to gas circulating direction, sealing strip is set in seal groove.
3. a kind of power station large diameter pipeline according to claim 1 blocks switching device, it is characterised in that: the closure
Component lower part is semicircle convergent T structure, top is that the flange arrangement being adapted with upper part of the housing, top are provided with lifting lug.
4. a kind of power station large diameter pipeline according to claim 3 blocks switching device, it is characterised in that: the closure
Component side is provided with reinforcing rib, and reinforcing rib is in net distribution.
5. a kind of power station large diameter pipeline according to claim 1 blocks switching device, it is characterised in that: described is through-flow
Cover board is rectangular flange structure, top is provided with lifting lug.
6. a kind of power station large diameter pipeline according to claim 1 blocks switching device, it is characterised in that: the sealing
Item is U-shaped tank seal strip, and sealing strip is made of rubber material.
7. a kind of power station large diameter pipeline according to claim 1 blocks switching device, it is characterised in that: the sealing
Circle is the slot type sealing ring adaptable with upper part of the housing flange or through-flow cover board, and sealing ring is made of rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821544116.1U CN208919538U (en) | 2018-09-20 | 2018-09-20 | A kind of power station large diameter pipeline closure switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821544116.1U CN208919538U (en) | 2018-09-20 | 2018-09-20 | A kind of power station large diameter pipeline closure switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208919538U true CN208919538U (en) | 2019-05-31 |
Family
ID=66706562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821544116.1U Active CN208919538U (en) | 2018-09-20 | 2018-09-20 | A kind of power station large diameter pipeline closure switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208919538U (en) |
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2018
- 2018-09-20 CN CN201821544116.1U patent/CN208919538U/en active Active
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