CN209245711U - A kind of low-pressure fuel gas feeder - Google Patents
A kind of low-pressure fuel gas feeder Download PDFInfo
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- CN209245711U CN209245711U CN201822178848.XU CN201822178848U CN209245711U CN 209245711 U CN209245711 U CN 209245711U CN 201822178848 U CN201822178848 U CN 201822178848U CN 209245711 U CN209245711 U CN 209245711U
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- screw rod
- gas
- air inlet
- bearing
- driven
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Abstract
The utility model discloses a kind of low-pressure fuel gas feeders, it includes the first air inlet pipe (11), second air inlet pipe (12), gas mixing chamber (13), exhaust pipe (14), screw rod pumping system, driving motor, it is characterized by: low-pressure fuel gas includes liquefied natural gas and helium, wherein, helium in first air inlet pipe (11) in liquefied natural gas and the second air inlet pipe (12) is sufficiently mixed in gas mixing chamber (13), mixed gas flows into screw rod pumping system together, screw rod pumping system is driven by driving motor, after mixed gas pumps system boost by screw rod, into in exhaust pipe (14), there are two mixed gas air inlet and a mixed gas exhaust outlets for exhaust pipe (14) tool；The utility model, as long as changing the revolving speed of motor, can be achieved with the requirement of pressure regulation using when the pressure of gas pressure regulating system needs to be adjusted.
Description
Technical field
The utility model relates to a kind of feeder more particularly to a kind of low-pressure fuel gas feeders.
Background technique
As all types of industries user is to the requirement continuous improvement with makings amount, gas pressure regulator, governor is safer, economical, reliable
Ground operation will become one of important topic in gas safe engineering.The continuity for how guaranteeing gas supply, is both gas enterprise benefit
Successional guarantee；
Currently, complete gas pressure regulator, governor system includes import block valve, quick action emergency valve, tune all the way in the prior art
Depressor and outlet block valve are constituted.When pressure regulator breaks down, quick action emergency valve senses superpressure or decompression and makes and cuts
Disconnected movement, the road voltage-regulating system stop working.Single channel gas supply caused by failure or maintenance because stop the supple of gas or steam in order to prevent, two-way
The structure of gas supply is also more and more used to that single channel gas supply and one is replaced to bypass gas-supplying structure with one, in use, in combustion gas tune
The pressure of pressure system needs more to need constantly to be adjusted, and current voltage-regulating system, without the requirement for meeting real-time pressure regulation.
Utility model content
The purpose of this utility model is to provide one kind can be realized real-time pressure regulation, by changing the revolving speed of motor,
When the pressure of gas pressure regulating system needs to be adjusted, as long as changing the revolving speed of motor, the requirement of pressure regulation can be achieved with.
There is provided a kind of low-pressure fuel gas feeders for the technical solution of the utility model comprising the first air inlet pipe, the
Two air inlet pipe, gas mixing chamber, exhaust pipe, screw rod pumping system, driving motor, low-pressure fuel gas include liquefied natural gas and helium
Gas, wherein the helium in the first air inlet pipe in liquefied natural gas and the second air inlet pipe is sufficiently mixed in gas mixing chamber, mixing
Gas flows into screw rod pumping system together, and screw rod pumping system is driven by driving motor, and mixed gas is pumped by screw rod is
After system pressurization, into exhaust pipe, there are two mixed gas air inlet and a mixed gas exhaust outlets for exhaust pipe tool；Screw pump
Sending system includes driving screw rod bearing and driven screw bearing, and driving screw rod bearing and driven screw bearing are separately fixed at actively
Screw rod and driven screw both ends, and driving screw rod bearing and driven screw bearing are each attached on shell.
Further, one end of driving screw rod and driven screw is each fixes a synchromesh gear, and two synchromesh gears are located at
Pump chamber same direction, and it is located at the outside of driving screw rod bearing and driven screw bearing；Synchromesh gear in driving screw rod
A shaft coupling is fixed in outside, and shaft coupling is by the axis of motor together with the axis connection of driving screw rod.
The beneficial effects of the utility model are:
(1) the utility model can be used when the pressure of gas pressure regulating system needs to be adjusted, as long as changing electronic
The revolving speed of machine can be achieved with the requirement of pressure regulation.
(2) the utility model has the advantages of simple structure, at low cost, and turbine and worm structural volume is small, and pressure regulation spectrum is big.
Detailed description of the invention
Fig. 1 is the principles of the present invention schematic diagram；
Fig. 2 is the utility model driving screw rod schematic diagram；
Wherein: 1 is driving screw rod, and 2 be driven screw, and 3 be active screw-bearing, and 4 be driven screw bearing, and 5 is actively
Segment hub seal part, 6 be driven screw sealing ring, 7 is synchromesh gear, 8 is motor, 9 is shell, 10 is shaft coupling；11- first into
Tracheae, the second air inlet pipe of 12-, 13- gas mixing chamber, 14- exhaust pipe.
Specific embodiment
A specific embodiment of the utility model is further described with reference to the accompanying drawing.
As shown in Figure 1, the utility model provides a kind of low-pressure fuel gas feeder comprising the first air inlet pipe 11, the
Two air inlet pipe 12, gas mixing chamber 13, exhaust pipe 14, screw rod pumping system, driving motor, low-pressure fuel gas include liquefied natural gas
And helium, wherein the helium in the first air inlet pipe 11 in liquefied natural gas and the second air inlet pipe 12 fills in gas mixing chamber 13
Divide mixing, mixed gas flows into screw rod pumping system together, and screw rod pumping system is driven by driving motor, and mixed gas passes through
After screw rod pumps system boost, into exhaust pipe 14, there are two mixed gas air inlet and a gaseous mixtures for the tool of exhaust pipe 14
Body exhaust outlet.
Screw rod pumping system includes driving screw rod bearing 3 and driven screw bearing 4, driving screw rod bearing 3 and driven screw
Bearing 4 is separately fixed at 2 both ends of driving screw rod 1 and driven screw, and driving screw rod bearing 3 and driven screw bearing 4 are fixed
Driving screw rod 1 and driven screw 2 are provided in the pump chamber surrounded on shell 9 by shell 9.
Screw rod pumping system further include have seal member, such as: in each fixation in the both ends of driving screw rod 1 and driven screw 2
A pair of of driving screw rod sealing element 5 and driven screw sealing ring 6, driving screw rod sealing element 5 are located at the inside of driving screw rod bearing 3,
Driven screw sealing ring 6 is located at the inside of driven screw bearing 4.Driving screw rod sealing element 5 and driven screw sealing ring 6 are and shell
Body 9 is in close contact, and one end of driving screw rod 1 and driven screw 2 is each to fix a synchromesh gear 7, and two synchromesh gears 7 are located at pump
Chamber same direction, and it is located at the outside of driving screw rod bearing 3 and driven screw bearing 4.Synchromesh gear 7 in driving screw rod 1
Outside fix a shaft coupling 10, shaft coupling 10 is by the axis of motor 8 together with the axis connection of driving screw rod 1.
As shown in Fig. 2, oppositely oriented and symmetrically turned on the basis of its axis centre plane comprising two sections in driving screw rod 1
Sub- A1, B1, and be one section of polished rod between A1 and B1, rotor A 1, B1 compression direction be along axis from center to both ends.Pass through
The center of reasonable disposition driving screw rod bearing 3 and driven screw bearing 4 is away from so that after assembly in driving screw rod 1 and driven screw 2
The intermeshing of two synchromesh gears 7, meanwhile, rotor A 1 in driving screw rod 1 and the screw rotor A2 on driven screw 2, master
There are one between the rotor for being also intermeshed between the rotor B2 on rotor B1 and driven screw 2 on dynamic screw rod 1, and engaging
Determine tooth gaps.Screw rotor molded line is rationally designed, the tooth gaps are gradually reduced along air entry to exhaust outlet direction.Actively
Smooth bar part among screw rod 1 and driven screw 2 is aligned with air entry, and the Rotor terminal of driving screw rod 1 and driven screw 2 is equal
It is aligned with exhaust outlet.
The course of work: when the system is operating, the helium in the first air inlet pipe 11 in liquefied natural gas and the second air inlet pipe 12
It is sufficiently mixed in gas mixing chamber 13, mixed gas flows into screw rod pumping system together, and screw rod pumping system passes through driving electricity
Machine 8 drives, and after mixed gas pumps system boost by screw rod, into exhaust pipe 14, there are two gaseous mixtures for the tool of exhaust pipe 14
Body air inlet and a mixed gas exhaust outlet.The torque that motor shaft exports is passed to master by 8 high speed rotation of motor, shaft coupling 10
Dynamic screw rod 1,7 high speed rotation of synchromesh gear for driving driving screw rod 1 and being fixed on above driving screw rod 1.Due on driven screw 2
Synchromesh gear 7 and driving screw rod 1 on synchromesh gear 7 be intermeshed, therefore motor 8 export torque pass through synchromesh gear 7
It is transmitted on driven screw 2, driving driven screw 2 and 1 synchronous backward of driving screw rod rotate.What is pumped send liquefied natural gas and helium
Gas is sufficiently mixed in gas mixing chamber 13 from the helium in the first air inlet pipe 11 in liquefied natural gas and the second air inlet pipe 12 respectively
It closes, enters back into pump chamber, flow into the tooth gaps between 2 rotor of driving screw rod 1 and driven screw, high-speed rotating driving screw rod 1
Gas is sucked in the tooth gaps to the flowing of exhaust outlet direction with the driving of driven screw 2.Since tooth gaps are from air entry
It is gradually reduced to exhaust outlet direction, gas is compressed, and pressure is gradually increased, and pump chamber is discharged in exhaust ports, and then by gaseous mixture
It is discharged into exhaust pipe 14.
When the mixture pressure of needs is big, the electric current of motor is improved, it is made to report increase, when needing to reduce gaseous mixture
When pressure, the electric current of motor is reduced, makes the reduction of its revolving speed.The low pressure range of the embodiment is usually in 1.4-1.8 normal atmosphere
Pressure.
The above various embodiments is only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to aforementioned
The utility model is described in detail in each embodiment, those skilled in the art should understand that: it still can be with
It modifies the technical solutions described in the foregoing embodiments, or some or all of the technical features is equal
Replacement；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution various embodiments of the utility model technical side
The range of case should all cover in the claim of the utility model and the range of specification.
Claims (2)
1. a kind of low-pressure fuel gas feeder comprising the first air inlet pipe (11), the second air inlet pipe (12), gas mixing chamber
(13), exhaust pipe (14), screw rod pumping system, driving motor, it is characterised in that: low-pressure fuel gas includes liquefied natural gas and helium
Gas, wherein the helium in the first air inlet pipe (11) in liquefied natural gas and the second air inlet pipe (12) is in gas mixing chamber (13)
It is sufficiently mixed, mixed gas flows into screw rod pumping system together, and screw rod pumping system is driven by driving motor, and mixed gas is logical
After crossing screw rod pumping system boost, into exhaust pipe (14), there are two mixed gas air inlet and one for exhaust pipe (14) tool
Mixed gas exhaust outlet；Screw rod pumping system includes driving screw rod bearing (3) and driven screw bearing (4), driving screw rod bearing
(3) and driven screw bearing (4) is separately fixed at driving screw rod (1) and driven screw (2) both ends, and driving screw rod bearing (3)
It is each attached on shell (9) with driven screw bearing (4).
2. low-pressure fuel gas feeder according to claim 1, it is characterised in that: driving screw rod (1) and driven screw (2)
One end it is each fix a synchromesh gear (7), two synchromesh gears (7) are located at pump chamber same direction, and are located at active spiral shell
The outside of rod bearing (3) and driven screw bearing (4)；A shaft coupling is fixed in driving screw rod (1) on the outside of synchromesh gear (7)
(10), shaft coupling (10) is by the axis of motor (8) together with the axis connection of driving screw rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822178848.XU CN209245711U (en) | 2018-12-24 | 2018-12-24 | A kind of low-pressure fuel gas feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822178848.XU CN209245711U (en) | 2018-12-24 | 2018-12-24 | A kind of low-pressure fuel gas feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209245711U true CN209245711U (en) | 2019-08-13 |
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ID=67534586
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822178848.XU Active CN209245711U (en) | 2018-12-24 | 2018-12-24 | A kind of low-pressure fuel gas feeder |
Country Status (1)
| Country | Link |
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| CN (1) | CN209245711U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115574199A (en) * | 2022-12-09 | 2023-01-06 | 山西凯嘉煤层气发电有限公司 | Gas device of gas generator set |
-
2018
- 2018-12-24 CN CN201822178848.XU patent/CN209245711U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115574199A (en) * | 2022-12-09 | 2023-01-06 | 山西凯嘉煤层气发电有限公司 | Gas device of gas generator set |
| CN115574199B (en) * | 2022-12-09 | 2023-03-28 | 山西凯嘉煤层气发电有限公司 | Gas device of gas generator set |
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