CN207195784U - Low low-pressure fuel gas pressure regulator spiracle protection cap with safeguard function - Google Patents
Low low-pressure fuel gas pressure regulator spiracle protection cap with safeguard function Download PDFInfo
- Publication number
- CN207195784U CN207195784U CN201721246539.0U CN201721246539U CN207195784U CN 207195784 U CN207195784 U CN 207195784U CN 201721246539 U CN201721246539 U CN 201721246539U CN 207195784 U CN207195784 U CN 207195784U
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- Prior art keywords
- low
- spiracle
- shield
- fuel gas
- lid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of low low-pressure fuel gas pressure regulator spiracle protection cap with safeguard function, including lid, shield and shield trip bolt；Lid includes main air inlet venthole, has outer square structure, connection external screw thread and secondary air inlet venthole；Passage gaps are provided between the inner surface of shield barrel shape structure and the outer surface of lid; passage gaps are provided between the upper surface of spiracle protection cap mounting hole on the lower surface of barrel shape structure and low low-pressure fuel gas pressure regulator, and the secondary air inlet venthole of lid is not less than the 1/2 of lid overall height dimension apart from the distance between barrel shape structure lower surface of shield；Shield is fixedly and coaxially connected by shield trip bolt with lid.This has the low low-pressure fuel gas pressure regulator spiracle protection cap of safeguard function simple in construction; being realized on the premise of the probability of spiracle can be entered realizing the floating foreign bodies such as effective reduction willow wadding prevents splashing rainwater from entering spiracle, especially suitable for the protection to low low-pressure fuel gas pressure regulator spiracle.
Description
Technical field
A kind of protection cap is the utility model is related to, it is specifically a kind of suitable for low on high-rise fuel gas supply conduit
The protection cap of low-pressure fuel gas pressure regulator spiracle, belongs to pipe gas technical field.
Background technology
Combustion gas is the general name of gaseous fuel, and it can burn and release heat and used for city dweller and industrial enterprise, China
The combustion gas of gas supply industry dispatching mainly includes three kinds of coal gas, liquefied petroleum gas and natural gas, because Gas Prices are relative
Cheap 30%-50% for gasoline and diesel oil, there is obvious economy, while national pay attention to day by day environmental protection, market pair
Clean energy resource demand sustainable growth, as cleaning, efficient, the cheap energy, natural gas consumption obtains fast-developing.
The Main Ingredients and Appearance of natural gas is exactly methane, and methane is light, therefore combustion gas can be to combustion gas inside fuel gas transportation pipeline
Conveyance conduit produces one and upwarded pressure, i.e. combustion gas additonal pressure, especially for having longer standpipe in high-rise
The fuel gas transportation pipeline of structure, can be increasing with the additonal pressure that increases of floor, when gaseous-pressure is beyond resident's burner
During pressure limit, the thermal efficiency of burner can reduce, combustion instability, burning produce additional noise, easily occur de- fiery (from flame) etc.
Phenomenon, so as to cause combustion gas imperfect combustion, redundancy combustion gas escapes and lodges in interior, buries potential safety hazard.
It is typically to take that low pressure combustion is installed on the fuel gas transportation pipeline of higher floor (more than 16 layers) in the prior art
Pressure secondary debugging of the mode of controlled atmosphere depressor to fuel gas transportation pipeline.Low low-pressure fuel gas pressure regulator is to rely only on sensing element
The change mobile valve for the outlet pressure that (i.e. epithelium) is experienced is adjusted, need not utilize extra power, can protect automatically
Keep steady fixed supply gas pressure.The spiracle that is in communication with the outside is typically provided with low low-pressure fuel gas pressure regulator to ensure that epithelium normally moves
It is dynamic accurately to experience the change of outlet pressure, and being typically provided with spiracle prevents foreign matter from entering the protection cap for influenceing epithelium motion.
As shown in Figure 1 and Figure 2, the spiracle protection cap of existing low low-pressure fuel gas pressure regulator is generally only simply to protect
Protecting cover bottom sets cross supporting frame, simply simply cross supporting frame is caught in spiracle during use, but cross hang
There is larger space, easily the exhaling into low low-pressure fuel gas pressure regulator of the floating foreign body in air between the cross-shaped fagging of frame
Inside sucker, particularly spring it is multiple willow wadding easily enter and block spiracle so reduce epithelium motion sensitivity,
So as to influence low pressure pressure regulator gas outlet pressure precision, and it is not easily cleaned, causes maintenance difficult, extend maintenance time,
Influence the just conventional gas of client.Meanwhile although the raindrop that the protection cap of this traditional structure can prevent from vertically falling enter breathing
Hole, but it is poor to be dropped in the splashing rainwater protection effect splash behind low low-pressure fuel gas pressure regulator surface for rainstorm weather, can not
It is effectively ensured not enter inside low low-pressure fuel gas pressure regulator.
The content of the invention
In view of the above-mentioned problems of the prior art, the utility model provides a kind of low low-pressure fuel gas with safeguard function
Pressure regulator spiracle protection cap, it is simple in construction, it can realize that effectively reducing the floating foreign bodies such as willow wadding enters the general of spiracle
Being realized on the premise of rate prevents splashing rainwater from entering spiracle, especially suitable for the guarantor to low low-pressure fuel gas pressure regulator spiracle
Shield.
To achieve these goals, there is the low low-pressure fuel gas pressure regulator spiracle protection cap of safeguard function to include lid for this
Body, shield and shield trip bolt；
Described lid is column construction, and the shaft core position of column construction goes out provided with the main air inlet for axially penetrating through column construction
Stomata, the top of main air inlet venthole are provided with internal thread；The bottom of column construction is coaxially provided with outer square structure and connection external screw thread,
Connect the screw-internal thread fit of external screw thread and the spiracle protection cap mounting hole on low low-pressure fuel gas pressure regulator；The cylinder of column construction
On circumferential direction be provided with it is multiple it is radially setting, with main air inlet ventholes insertion secondary air inlet ventholes；
Described shield is inverted barrel shape structure, and the top planar central position of barrel shape structure, which is provided with, axially penetrates through barrel shape knot
The connection mounting hole of structure, passage gaps, the lower end of barrel shape structure are provided between the inner surface of barrel shape structure and the outer surface of lid
Passage gaps are provided between the upper surface of spiracle protection cap mounting hole on face and low low-pressure fuel gas pressure regulator, and secondary air inlet goes out
Stomata is not less than the 1/2 of lid overall height dimension apart from the distance between barrel shape structure lower surface of shield；
The screw-internal thread fit of described shield trip bolt and main air inlet venthole, shield pass through shield trip bolt and lid
Body is fixedly and coaxially connected.
As further improvement of the utility model scheme, the inscribed circle diameter size of described outer square structure is more than connection
Externally threaded outside dimension.
As further improvement of the utility model scheme, on the location and installation end face of described shield trip bolt and even
Connect and be equipped with sealing gasket on externally threaded location and installation end face.
As further improvement of the utility model scheme, described shield uses transparent material.
As a kind of embodiment of the present utility model, described lid and shield use aluminum material.
As another embodiment of the present utility model, described lid and shield use PVC material.
Compared with prior art, there is the low low-pressure fuel gas pressure regulator spiracle protection cap of safeguard function to be fired with low pressure for this
The barrel shape structure lower surface of rear shield of spiracle protection cap mounting hole installation on controlled atmosphere depressor and exhaling on gas pressure regulator, governor
There is the outer surface of less passage gaps, the inner surface of barrel shape structure and lid between the upper surface of sucker protection cap mounting hole
Between there are less passage gaps, and the position of secondary air inlet venthole is higher, thus the floating foreign body in air need to pass through it is curved
The bent and less passage in gap enters spiracle, and then realizes that the floating foreign body substantially reduced in air enters the general of spiracle
Rate；Simultaneously because the angle that rainwater splashes is limited, therefore less passage gaps and higher secondary air inlet outlet hole site
It can prevent rainwater from splashing to enter spiracle simultaneously, it is simple in construction, it can realize that effectively reducing the floating foreign bodies such as willow wadding enters
Being realized on the premise of entering the probability of spiracle prevents splashing rainwater from entering spiracle, especially suitable for low low-pressure fuel gas pressure regulator
The protection of spiracle.
Brief description of the drawings
Fig. 1 is the structural representation of prior art protective cover；
Fig. 2 is Fig. 1 A-A sectional views；
Fig. 3 is structural representation of the present utility model.
In figure：1st, lid, 11, main air inlet venthole, 12, outer square structure, 13, connection external screw thread, 14, secondary air inlet outlet
Hole, 2, shield, 3, shield trip bolt.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings and (installed below with bidirectional choke plug 1 and the combustion gas mouth of pipe
Direction describes for rear).
As shown in figure 3, there is the low low-pressure fuel gas pressure regulator spiracle protection cap of safeguard function to include lid 1, shield 2 for this
With shield trip bolt 3.
Described lid 1 is column construction, and the shaft core position of column construction is provided with the main air inlet for axially penetrating through column construction
Venthole 11, the top of main air inlet venthole 11 are provided with internal thread；The bottom of column construction is coaxially provided with outer square structure 12 and connected
Connect external screw thread 13, the screw-internal thread fit of connection external screw thread 13 and the spiracle protection cap mounting hole on low low-pressure fuel gas pressure regulator；
Circumferential direction on the cylinder of column construction is provided with multiple pairs radially setting, with the insertion of main air inlet venthole 11
Air inlet venthole 14.
Described shield 2 is inverted barrel shape structure, and the top planar central position of barrel shape structure, which is provided with, axially penetrates through barrel shape
The connection mounting hole of structure, is provided with passage gaps between the inner surface of barrel shape structure and the outer surface of lid 1, under barrel shape structure
Passage gaps, and secondary air inlet are provided between the upper surface of spiracle protection cap mounting hole on end face and low low-pressure fuel gas pressure regulator
Venthole 14 is not less than the 1/2 of the overall height dimension of lid 1 apart from the distance between barrel shape structure lower surface of shield 2.
The screw-internal thread fit of described shield trip bolt 3 and main air inlet venthole 11, shield 2 pass through shield trip bolt
3 are fixedly and coaxially connected with lid 1.
When there is the low low-pressure fuel gas pressure regulator spiracle protection cap of safeguard function to install and use for this, first pass through spanner and bite
Peace is fixed with the spiracle protection cap mounting hole on gas pressure regulator, governor by connecting external screw thread 13 in lid 1 by outer square structure 12
Dress, then shield 2 and lid 1 are fixedly and coaxially connected by shield trip bolt 3, the barrel shape of the rear shield 2 installed
There is less circulation between the upper surface of spiracle protection cap mounting hole on structure lower surface and low low-pressure fuel gas pressure regulator
There are less passage gaps between the outer surface in gap, the inner surface of barrel shape structure and lid 1, and secondary air inlet venthole 14
Position is higher, therefore the floating foreign body in air need to pass through bending and the less passage in gap enters spiracle, and then realizes big
The big floating foreign body reduced in air enters the probability of spiracle；Simultaneously because the angle that rainwater splashes is limited, therefore compared with
Small passage gaps and the higher secondary position of air inlet venthole 14 can prevent rainwater from splashing to enter spiracle simultaneously.
For the ease of end face position, as further improvement of the utility model scheme, described outer square structure 12 it is interior
Tangential circle diameter size is more than the outside dimension of connection external screw thread 13.
In order to prevent rainwater immersion intrusion, as further improvement of the utility model scheme, described shield fastening spiral shell
Sealing gasket is equipped with the location and installation end face of nail 3 and on the location and installation end face of connection external screw thread 13.
For the ease of the entrance situation of observation floating foreign body directly perceived, as further improvement of the utility model scheme, institute
The shield 2 stated uses transparent material.
In order to prevent corrosion, as a kind of embodiment of the present utility model, described lid 1 and shield 2 use aluminium
Material matter.
In order to prevent corrosion, as another embodiment of the present utility model, described lid 1 and shield 2 use
PVC material.
Claims (6)
- A kind of 1. low low-pressure fuel gas pressure regulator spiracle protection cap with safeguard function, it is characterised in that including lid (1), Shield (2) and shield trip bolt (3)；Described lid (1) is column construction, and the shaft core position of column construction goes out provided with the main air inlet for axially penetrating through column construction Stomata (11), the top of main air inlet venthole (11) are provided with internal thread；The bottom of column construction is coaxially provided with outer square structure (12) With connection external screw thread (13), the interior spiral shell of connection external screw thread (13) and the spiracle protection cap mounting hole on low low-pressure fuel gas pressure regulator Line coordinates；Circumferential direction on the cylinder of column construction is provided with multiple radially set and main air inlet ventholes (11) the secondary air inlet venthole (14) of insertion；Described shield (2) is inverted barrel shape structure, and the top planar central position of barrel shape structure, which is provided with, axially penetrates through barrel shape knot The connection mounting hole of structure, is provided with passage gaps between the outer surface of the inner surface and lid (1) of barrel shape structure, under barrel shape structure Passage gaps, and secondary air inlet are provided between the upper surface of spiracle protection cap mounting hole on end face and low low-pressure fuel gas pressure regulator Venthole (14) is not less than the 1/ of lid (1) overall height dimension apart from the distance between barrel shape structure lower surface of shield (2) 2；Described shield trip bolt (3) and the screw-internal thread fit of main air inlet venthole (11), shield (2) fasten spiral shell by shield Nail (3) is fixedly and coaxially connected with lid (1).
- 2. the low low-pressure fuel gas pressure regulator spiracle protection cap according to claim 1 with safeguard function, its feature exist In the inscribed circle diameter size of described outer square structure (12) is more than the outside dimension of connection external screw thread (13).
- 3. the low low-pressure fuel gas pressure regulator spiracle protection cap according to claim 2 with safeguard function, its feature exist In, on the location and installation end face of described shield trip bolt (3) and connection external screw thread (13) location and installation end face on be all provided with There is sealing gasket.
- 4. the low low-pressure fuel gas pressure regulator spiracle protection cap with safeguard function according to claim 1 or 2 or 3, its It is characterised by, described shield (2) uses transparent material.
- 5. the low low-pressure fuel gas pressure regulator spiracle protection cap with safeguard function according to claim 1 or 2 or 3, its It is characterised by, described lid (1) and shield (2) use aluminum material.
- 6. the low low-pressure fuel gas pressure regulator spiracle protection cap with safeguard function according to claim 1 or 2 or 3, its It is characterised by, described lid (1) and shield (2) use PVC material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721246539.0U CN207195784U (en) | 2017-09-26 | 2017-09-26 | Low low-pressure fuel gas pressure regulator spiracle protection cap with safeguard function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721246539.0U CN207195784U (en) | 2017-09-26 | 2017-09-26 | Low low-pressure fuel gas pressure regulator spiracle protection cap with safeguard function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207195784U true CN207195784U (en) | 2018-04-06 |
Family
ID=61787240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721246539.0U Expired - Fee Related CN207195784U (en) | 2017-09-26 | 2017-09-26 | Low low-pressure fuel gas pressure regulator spiracle protection cap with safeguard function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207195784U (en) |
-
2017
- 2017-09-26 CN CN201721246539.0U patent/CN207195784U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180406 Termination date: 20180926 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |