CN209587127U - A kind of simple connecting shaft protective device for small miniature pressure energy of natural gas power generation - Google Patents
A kind of simple connecting shaft protective device for small miniature pressure energy of natural gas power generation Download PDFInfo
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- CN209587127U CN209587127U CN201920064501.4U CN201920064501U CN209587127U CN 209587127 U CN209587127 U CN 209587127U CN 201920064501 U CN201920064501 U CN 201920064501U CN 209587127 U CN209587127 U CN 209587127U
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Abstract
The utility model discloses a kind of simple connecting shaft protective devices for small miniature pressure energy of natural gas power generation, including hollow protecting device for shaft coupler, information display device, screw thread pressed sealing device；The screw thread pressed sealing device is symmetrically connected to the both ends of the protecting device for shaft coupler by screw thread; the protecting device for shaft coupler is sealed at the shaft coupling between air motor and the opposite seal face of explosion-proof power generator and coating air motor and explosion-proof power generator by the screw thread pressed sealing device, and the fire-retardant gas of certain pressure is injected in the sealing inner cavity that the protecting device for shaft coupler, screw thread pressed sealing device, air motor and the opposite seal face of explosion-proof power generator are surrounded.The utility model, which has, is not necessarily to additionaling power, easy to operate, easy to maintain, steady operation and other merits, it can also judge whether natural gas leaks, reduce artificial supervision, pipe network operation safety is greatly improved, future can operate with entire natural gas pipe network pressure energy power generator.
Description
Technical field
The utility model belongs to small miniature natural gas pipe network pressure energy power generation field of safety protection, and in particular to one kind is used for
The simple connecting shaft protective device of small miniature pressure energy of natural gas power generation.
Background technique
With the fast development of society, it is larger to have gradually replaced other pollutions as a kind of cleaning green energy resource for natural gas
The energy, become the main supply energy source in city.This also proposes more the operation management of pipeline network of fuel gas in city and Security Construction
High requirement.With the high speed development of China's economic society, the increasingly raising of living standards of the people, gas demand increasingly increases
Long, gas ductwork construction enters fast-developing period, so that fuel gas pressure-regulating box is regional throughout along the line.
Fuel gas pressure-regulating box is that regulator is placed in case body special, is set to building, and production district near living area, is held
The load adjusting task of atmospheric pressure.General pressure regulating box has the characteristics that compact-sized, technology maturation, takes up little area, so that it is in day
With extensive, enormous amount in right gas pipe network air supply system, runing time is longer.As city density increases, build up
Mesolow pressure regulating box by it is all kinds of face build encirclement, various potential security risks are also multiplied.
Simultaneously as replacement gas-fired equipment hardware device higher cost, to promote Gas Pressure Regulating Equipment security monitoring ability,
Therefore just gradually trend is universal for small miniature natural pipe network pressure energy power generator.It theoretically, can be in the position for having pressure regulating box
Carry out pressure energy power generation.But there is also the problems of dynamic seal structure gas leakage for the technology.Therefore, it is necessary to one kind simply to connect
Axis protective device arranges the more sufficient safeguard protection of the system increase while making full use of natural gas pipe network pressure energy
It applies, and the unobvious increase device space and use cost.
The pressure energy of natural gas in China is generally plug-in oil seal or gas source sealing using leakage prevention method at present,
Take up an area larger, higher cost, in terms of being not particularly suited for small miniature natural gas power.
Utility model content
The purpose of this utility model is that for presented above, current small miniature pipe network pressure energy of natural gas power generator
Leakage hidden danger and deficiency, a kind of simple connecting shaft guard method for small miniature pressure energy of natural gas power generation and device are provided,
It prevents natural gas dynamic sealing from leaking to reach, high-speed rotating component is protected using casing, prevents shaft coupling from being broken and splashes, mention
High system performance monitoring means, and do not increase new security risk, and the purpose of do not increase occupation area of equipment.
The technical solution of utility model realization above-mentioned purpose are as follows:
A kind of simple connecting shaft protective device for small miniature pressure energy of natural gas power generation, is protected including hollow shaft coupling
Device, information display device, screw thread pressed sealing device；The screw thread pressed sealing device is symmetrically connected to described by screw thread
The both ends of protecting device for shaft coupler, the protecting device for shaft coupler are sealed at pneumatically by the screw thread pressed sealing device
Between motor and the opposite seal face of explosion-proof power generator and coat the shaft coupling of air motor and explosion-proof power generator, the shaft coupling
In the sealing that device protective device, screw thread pressed sealing device, air motor and the opposite seal face of explosion-proof power generator are surrounded
The fire-retardant gas of certain pressure is injected in chamber；The outer of the protecting device for shaft coupler is arranged in the information display device connection
On wall, for monitoring real-time air pressure and temperature in the protecting device for shaft coupler.
Preferably, the protecting device for shaft coupler includes that both ends are provided with externally threaded casing, the thickness of described sleeve pipe
For 3-5mm, internal diameter is 5-10mm bigger than the outer diameter of the shaft coupling.
Preferably, between the length of the described sleeve pipe seal face more opposite than the air motor and explosion-proof power generator
Away from few 8-12mm.
Preferably, described sleeve pipe outer wall is provided with gas filler.
Preferably, the both ends of described sleeve pipe are provided with the external screw thread of 8-15mm.
Preferably, the material of described sleeve pipe includes metal, engineering plastics.
Preferably, the information display device includes temperature transmitter, pressure transmitter, is separately positioned on described sleeve pipe
On the outer wall of close end, for monitoring real-time air pressure and temperature in described sleeve pipe, this programme can show transmission pressure,
Temperature data, temperature can judge shaft coupling operation conditions, the degree of wear and release fracture for reacting shaft coupling temperature.
Pressure is for judging that the equipment is judged as natural gas leaking when pressure rises with the presence or absence of natural gas leaking phenomenon；Pressure decline
When, it is judged as helium leak.In addition, both transmitter datas can be effectively right by achievable real-time detection and data statistics
The service life of shaft coupling judges and predicts, maintenance maintenance replacement is reminded to prepare.
Preferably, the screw thread pressed sealing device includes internal threaded nut, seal washer, the internal threaded nut with
The external screw thread of described sleeve pipe end is tightly connected, the gasket snare in described sleeve pipe and be located at the internal threaded nut and
Between the contact surface of seal face.
Preferably, the seal washer is O-ring seal, the air motor and the opposite sealing of explosion-proof power generator
The annular seal groove matched with the seal washer is provided on end face.
Preferably, the fire-retardant gas includes nitrogen, helium, argon gas etc., and the pressure value of the fire-retardant gas is lower than day
Right gas exit pressure levels and it is higher than atmospheric environmental pressure value.
The utility model compared with the prior art and status have it is below the utility model has the advantages that
1, equipment implementation cost is lower, has multiple functions and realizes hazards prevention and early warning.Additional life is not needed
It produces and high-accuracy processing technology, the device is by the way that screw threads for fastening by shaft coupling and to be easy leakage sealed face and be placed on metal tube
In road, for the natural gas that may be leaked, it is isolated on route of transmission, while utilizing the change of equipment own temperature pressure data
Change and anticipation and early warning are carried out to accident.
2, package unit operation is simple, easy to maintain.The device can be run without increasing manual operation, it is only necessary to periodically
It repairs.It can also judge whether natural gas leaks, reduce artificial supervision, greatly improve pipe network operation safety.Future
It can gradually promote for small miniature natural gas pipe network pressure energy power generator, improve the safety guarantee degree of the technology.
3, package unit occupied area is small, has a wide range of application.The device will only increase casing outside former shaft coupling, and by
In not needing plus auxiliary device, can be carried out under various operating conditions using.
Detailed description of the invention
Fig. 1 is a kind of simple connecting shaft protective device figure for small miniature pressure energy of natural gas power generation.
Fig. 2 is pipe sleeve and nut compact connecting structure schematic diagram.
Show in figure: 1- high-pressure natural gas import, 2- air motor, 3- seal face, 4- temperature transmitter, 5- pressure become
Send device, 6- shaft coupling, 7- explosion-proof power generator, 8- internal threaded nut, 9- external screw thread, 10- casing, 11- gas filler, 12- is close
Seal washer, the outlet of 13- low pressure natural gas.
Specific embodiment
To more fully understand the utility model, the utility model is described in further detail with reference to the accompanying drawings and examples,
But the range of the requires of the utility model protection is not limited to the scope of the embodiments.
With in certain natural gas line pressure regulating box, for 200W micro pressure energy power generation project, the pipe natural gas flow is about
For 100Nm3/ h, inlet pressure 0.8MPa, 0.1 MPa after decompression.
It does work as shown in Figure 1, natural gas enters air motor 2 by high-pressure natural gas import 1, is driven by shaft coupling 6
Explosion-proof power generator 7, the electricity of the capable of emitting 200W of explosion-proof power generator 7.Natural gas after expansion by low pressure natural gas outlet 13 into
Enter downstream gas ductwork.Pressure energy of natural gas generating equipment monnolithic case is about 1m long, 0.8m wide, 0.6m high.
To realize the purpose of this utility model, the present embodiment is adopted the following technical scheme that
As shown in Figure 1, a kind of simple connecting shaft protective device for small miniature pressure energy of natural gas power generation, including hollow
Protecting device for shaft coupler, information display device, screw thread pressed sealing device；The screw thread pressed sealing device is symmetrical by screw thread
The both ends of the protecting device for shaft coupler are connected to, the protecting device for shaft coupler is sealed by the screw thread pressed sealing device
It is set between air motor 2 and the opposite seal face 3 of explosion-proof power generator 7 and coats air motor 2 and explosion-proof power generator 7
Shaft coupling 6, the protecting device for shaft coupler, screw thread pressed sealing device, air motor 2 and the opposite sealing of explosion-proof power generator 7
The fire-retardant gas of certain pressure is injected in the sealing inner cavity that end face 3 is surrounded；The information display device connection is arranged in institute
It states on the outer wall of protecting device for shaft coupler, for monitoring real-time air pressure and temperature in the protecting device for shaft coupler.
The protecting device for shaft coupler includes that both ends are provided with the externally threaded casing 10 of 10mm long, the material of described sleeve pipe 10
Material is stainless steel tube, it is to be understood that the enough engineering plastics of intensity or other conjunctions also can be used in the material of described sleeve pipe 10
Suitable material.Described sleeve pipe 10 with a thickness of 5mm, internal diameter is 5mm bigger than the outer diameter of the shaft coupling 6.The length of described sleeve pipe 10
Spacing between the seal face 3 more opposite than the air motor 2 and explosion-proof power generator 7 is 10mm few.10 outer wall of described sleeve pipe is set
It is equipped with gas filler 11, is conveniently injected with the fire-retardant gas of certain pressure.
The information display device includes temperature transmitter 4, pressure transmitter 5, is separately positioned on outside described sleeve pipe 10
On wall, for monitoring real-time air pressure and temperature in described sleeve pipe 10, in the present embodiment, temperature transmitter 4, pressure transmitter 5
It can show that pressure in casing 10, temperature data, temperature can judge that shaft coupling 6 runs shape for reacting 6 temperature of shaft coupling
Condition, the degree of wear and release fracture.Pressure is for judging that the equipment whether there is natural gas leaking phenomenon, when pressure rises,
It is judged as natural gas leaking；When pressure declines, it is judged as that fire-retardant gas leaks.In addition, by real-time detection and data statistics, this
Two kinds of transmitter datas can be judged and be predicted in the service life effectively to shaft coupling 6, and maintenance maintenance replacement is reminded to prepare.
As shown in Fig. 2, the screw thread pressed sealing device includes internal threaded nut 8, seal washer 12, the internal screw thread
Nut 8 and the external screw thread of 10 end of described sleeve pipe are tightly connected, and when necessary, can be wound on the external screw thread of 10 end of described sleeve pipe
Sealant tape guarantees the sealing effect of the two.12 sets of the seal washer is in described sleeve pipe 10 and is located at the internal threaded nut
Between 8 and the contact surface of seal face 3.This implementation uses movable joint threaded support fixed form, and length adjustable extent is larger,
And it is easy to disassemble.
Wherein, the seal washer 12 is O-ring seal, the air motor 2 and opposite close of explosion-proof power generator 7
It is provided with the annular seal groove matched with the seal washer 12 on sealing end face 3, that is, plays sealing function, while to described
Seal washer 12 so that described sleeve pipe 10 play positioning action, so that it is kept coaxial with shaft coupling 6 as far as possible.
In one embodiment, the fire-retardant gas uses nitrogen, and the pressure value of the nitrogen is lower than gas outlet
Pressure value and it is higher than atmospheric environmental pressure value, the pressure of nitrogen is 0.4MPa in the present embodiment.
For the seal face 3 of the air motor 2 since abrasion be easy to cause gas leakage, leakage natural gas will directly and air
Then there is security risk once friction spark occurs for shaft coupling 6 in contact.The described sleeve pipe 10 can be normal in each equipment
When work, micro-positive pressure nitrogen is filled by gas filler 11, which not only prevents after natural gas leaking directly and air
Contact, it is pre- anti-burning, eliminate danger source.Moreover, after described sleeve pipe 10 can also prevent be broken internal 6 moment of shaft coupling, in height
Fragment splashing damages to other equipment or generates spark under revolving speed, meanwhile, ambient impurities can be effectively prevent to shaft joint 6
Pollution and destruction.
When installation, by rotating the internal threaded nut 8 at 10 both ends of described sleeve pipe, make two internal threaded nuts 8 gradually to two sides
It is mobile, up to compression seal washer 12 to annular seal groove, and make air motor 2 and explosion-proof power generator 7 by enough preloads
Pressure guarantees leakproofness and stability.
Then nitrogen is passed through by gas filler 11, which is 0.4MPa, in order to pressure transmitter judgement.
Simultaneously temperature transmitter and pressure transmitter probe should be as close as possible to two sides, it is therefore an objective to prevent intermediate shaft coupling 6 beat it is larger with
Transmitter interference.
When equipment works normally, temperature transmitter 4 should be continuously maintained in certain indicating range, with normal working temperature
Compare, when the temperature is excessively high, illustrate shaft coupling 6 occur abrasion self friction heating or overall deformation after with other structures friction
Cause to heat up；It is then that shaft coupling 6 is broken, air motor 2 is in light condition, under main shaft flies to turn temperature sharply when temperature is too low
Drop.At this time, it was demonstrated that exception occurs in the pressure energy electricity generation system, needs to overhaul.
When equipment work normally when, pressure transmitter 5 should be continuously maintained in certain indicating range, if hypertonia or
It is too low, then it proves that gas leakage or helium leak occurs in the equipment, needs to overhaul.
Before maintenance, a whole set of pressure energy generating equipment should be stopped, closing front and back valve.Gas filler 11 is opened, day is detected
Then right gas concentration loosens two sides internal threaded nut 8, is overhauled.
The above embodiments of the present invention is merely examples for clearly illustrating the present invention, and is not
Limitations of the embodiments of the present invention.For those of ordinary skill in the art, on above explained basis
On can also make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.
Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in this reality
Within novel scope of protection of the claims.
Claims (10)
1. a kind of simple connecting shaft protective device for small miniature pressure energy of natural gas power generation, it is characterised in that: including hollow
Protecting device for shaft coupler, information display device, screw thread pressed sealing device；The screw thread pressed sealing device is symmetrical by screw thread
The both ends of the protecting device for shaft coupler are connected to, the protecting device for shaft coupler is sealed by the screw thread pressed sealing device
It is set between air motor (2) and the opposite seal face (3) of explosion-proof power generator (7) and cladding is air motor (2) and explosion-proof
The shaft coupling (6) of generator (7), the protecting device for shaft coupler, screw thread pressed sealing device, air motor (2) and anti-outburst
The fire-retardant gas of certain pressure is injected in the sealing inner cavity that the opposite seal face (3) of motor (7) is surrounded；The information is aobvious
Showing device connection is arranged on the outer wall of the protecting device for shaft coupler, real-time in the protecting device for shaft coupler for monitoring
Air pressure and temperature.
2. the simple connecting shaft protective device according to claim 1 for small miniature pressure energy of natural gas power generation, feature
Be: the protecting device for shaft coupler includes that both ends are provided with externally threaded casing (10), described sleeve pipe (10) with a thickness of
3-5mm, internal diameter are 5-10mm bigger than the outer diameter of the shaft coupling (6).
3. the simple connecting shaft protective device according to claim 2 for small miniature pressure energy of natural gas power generation, feature
It is: between the length of described sleeve pipe (10) seal face (3) more opposite than the air motor (2) and explosion-proof power generator (7)
Spacing lack 8-12mm.
4. the simple connecting shaft protective device according to claim 2 for small miniature pressure energy of natural gas power generation, feature
Be: described sleeve pipe (10) outer wall is provided with gas filler (11).
5. the simple connecting shaft protective device according to claim 2 for small miniature pressure energy of natural gas power generation, feature
Be: the both ends of described sleeve pipe (10) are provided with the external screw thread of 8-15mm.
6. the simple connecting shaft protective device according to claim 2 for small miniature pressure energy of natural gas power generation, feature
Be: the material of described sleeve pipe (10) includes metal, engineering plastics.
7. the simple connecting shaft protective device according to claim 2 for small miniature pressure energy of natural gas power generation, feature
Be: the information display device include temperature transmitter (4),
Pressure transmitter (5) is separately positioned on described sleeve pipe (10) on the outer wall of close end, for monitoring described sleeve pipe (10)
Interior real-time air pressure and temperature.
8. the simple connecting shaft protective device according to claim 2 for small miniature pressure energy of natural gas power generation, feature
Be: the screw thread pressed sealing device includes internal threaded nut (8), seal washer (12), the internal threaded nut (8) with
The external screw thread of described sleeve pipe (10) end is tightly connected, and the seal washer (12) covers on described sleeve pipe (10) and is located at described
Between internal threaded nut (8) and the contact surface of seal face (3).
9. the simple connecting shaft protective device according to claim 8 for small miniature pressure energy of natural gas power generation, feature
Be: the seal washer (12) is O-ring seal, the air motor (2) and the opposite sealing of explosion-proof power generator (7)
The annular seal groove matched with the seal washer (12) is provided on end face (3).
10. the simple connecting shaft protective device according to claim 1 for small miniature pressure energy of natural gas power generation, feature
Be: the fire-retardant gas includes nitrogen, helium, argon gas, and the pressure value of the fire-retardant gas is lower than gas outlet pressure
It is worth and is higher than atmospheric environmental pressure value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920064501.4U CN209587127U (en) | 2019-01-15 | 2019-01-15 | A kind of simple connecting shaft protective device for small miniature pressure energy of natural gas power generation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920064501.4U CN209587127U (en) | 2019-01-15 | 2019-01-15 | A kind of simple connecting shaft protective device for small miniature pressure energy of natural gas power generation |
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| CN209587127U true CN209587127U (en) | 2019-11-05 |
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| CN201920064501.4U Active CN209587127U (en) | 2019-01-15 | 2019-01-15 | A kind of simple connecting shaft protective device for small miniature pressure energy of natural gas power generation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780206A (en) * | 2019-01-15 | 2019-05-21 | 广东众通利华能源科技有限公司 | A kind of simple connecting shaft protective device for small miniature pressure energy of natural gas power generation |
-
2019
- 2019-01-15 CN CN201920064501.4U patent/CN209587127U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780206A (en) * | 2019-01-15 | 2019-05-21 | 广东众通利华能源科技有限公司 | A kind of simple connecting shaft protective device for small miniature pressure energy of natural gas power generation |
| CN109780206B (en) * | 2019-01-15 | 2024-07-09 | 佛山市寰晟通新能源科技有限公司 | Simple connecting shaft protection device for small and miniature natural gas pressure energy power generation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221010 Address after: 528313 Room 307, Floor 3, Block 22, Shunlian Machinery City, No. 18, Xingye 4th Road, Guanglong Industrial Park, Chihua Community, Chencun Town, Shunde District, Foshan City, Guangdong Province Patentee after: Foshan huanshengtong New Energy Technology Co.,Ltd. Patentee after: SOUTH CHINA University OF TECHNOLOGY Address before: 528314 Shunde District, Foshan City, Guangdong Province, Chencun Town, Chihua Residential Committee Guanglong Industrial Park, 18 Xingye Road, Shunlian Machinery City, 22 401 rooms Patentee before: GUANGDONG ZHONGTONGLIHUA ENERGY TECHNOLOGY Co.,Ltd. Patentee before: SOUTH CHINA University OF TECHNOLOGY |
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| TR01 | Transfer of patent right |