CN107143691A - It is a kind of to utilize natural gas line built-in power generation to be used for the device for adjusting flow - Google Patents
It is a kind of to utilize natural gas line built-in power generation to be used for the device for adjusting flow Download PDFInfo
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- CN107143691A CN107143691A CN201710503127.9A CN201710503127A CN107143691A CN 107143691 A CN107143691 A CN 107143691A CN 201710503127 A CN201710503127 A CN 201710503127A CN 107143691 A CN107143691 A CN 107143691A
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- natural gas
- flow control
- flow
- screw thread
- control valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/16—Spindle sealings with a flange on the spindle which rests on a sealing ring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/363—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor the fluid acting on a piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Flow Control (AREA)
Abstract
Natural gas line built-in power generation is utilized to be used for the device for adjusting flow, including enclosure system the invention discloses a kind of, electricity generation system, flow control system, the enclosure system includes housing, is arranged on the flange at the housing two ends；The electricity generation system includes vane type generating mechanism, the energy storage converting apparatus being fixed in the housing, and the rotating shaft of the vane type generating mechanism is provided with screw thread diversion head foremost；The flow control system includes PLC, is arranged on the flow control valve of the housing central section, the first pressure transmitter and the first temperature transmitter that are arranged on flow control valve upstream, the second pressure transmitter for being arranged on flow control valve downstream, second temperature transmitter and flowmeter, and the PLC is used for according to the natural gas fluid dynamic state of parameters adjustment flow control valve detected in real time.The present invention can realize the self-sufficient of electric energy, meanwhile, also improve generated energy and Flow-rate adjustment precision, it is ensured that the normal operation of upstream device.
Description
Technical field
Field is utilized the present invention relates to natural gas pipe network pressure energy, and in particular to one kind utilizes natural gas built-in power generation to be used for
Adjust the device of flow.
Background technology
At present apparently, as Gas Comprehensive is using the exploitation of technology and the support energetically of country, the use of natural gas becomes
In popular, occupation mode is ever-changing, and purposes is also had nothing in common with each other.Accordingly, in order to tackle come one after another various prominent in time
Hair-like condition, the equipment of natural gas is also required to improve perfect to direction that is intelligent, becoming more meticulous.When natural gas is applied to some convection current
When measuring the equipment having high requirements, it is necessary to assure gas stablizes conveying for a long time, to avoid flowing desultory, fluctuating ripple
Move very big situation to occur, it would be desirable to design a kind of device to overcome this problem.
The mode of natural gas line built-in power generation is taken, dexterously flow is adjusted using the energy of natural gas itself.Both
The problem of flow fluctuation present in reality is too big is solved, the maximized advantage of energy utilization can be met again, during safeguard work
Between on it is continuous, echo country advocate saving the energy proposal.
When natural gas is conveyed in pipe network, huge energy is carry, a scheme can be designed by this one energy profit
Operation is met with suitable device to require, and the emergency situations tackled natural gas transportation and occurred when using.Common pressure
Power can expend huge manpower and materials using device, not be upper choosing from the point of view of economy and execute-in-place.Institute
To select a kind of device simple in construction, easy for installation that there is practicable meaning, both improve the convenience of natural gas transportation
And security, equipment can be met again wants summed data index, goes back the call of the saving energy of active response country, accomplishes
The high standard of " economic, safety, green ".
The content of the invention
The problem of interruption and too big flow fluctuation that the present invention may be produced for natural gas transportation and when using, and carry
A kind of device for utilizing natural gas line built-in power generation to be used for Flow-rate adjustment has been supplied, compared to other methods, has been not only solved
Problem is stated, manpower, material resources and financial resources are also saved to greatest extent.
The present invention is reaches that the technical scheme that above-mentioned requirements are used is：
A kind of to utilize natural gas line built-in power generation to be used for the device for adjusting flow, including enclosure system, electricity generation system, flow is adjusted
Section system,
Described enclosure system includes housing, is arranged on the flange at the housing two ends；
Vane type generating mechanism that described electricity generation system includes being fixed in the housing, it is arranged on that the housing is outer and circuit
The energy storage converting apparatus of the vane type generating mechanism output end is connected, the rotating shaft of the vane type generating mechanism is foremost
It is provided with the screw thread diversion head for guiding air-flow to improve generating efficiency；
Described flow control system includes PLC, is arranged on the flow control valve of the housing central section, is arranged on flow control valve
The first pressure transmitter and the first temperature transmitter of upstream, the second pressure transmitter for being arranged on flow control valve downstream,
Two temperature transmitters and flowmeter, the flow control system are powered by energy storage converting apparatus, and the PLC passes through circuit point
Lian Jie not first pressure transmitter and the first temperature transmitter, flow control valve, second pressure transmitter, second temperature transmitter
And flowmeter, for adjusting flow control valve according to the natural gas fluid dynamic state of parameters detected in real time.
Further, described vane type generating mechanism includes generator, impeller, motor fixed cover, described generator
It is fixedly installed on by motor fixed cover in housing, the impeller is fixed on the front end of the alternator shaft, the generator
Rear end is provided with sealed wiring post, is connected between the sealed wiring post and energy storage converting apparatus by wire circuit.
Further, described generator is fire-proof motor.
Further, the lobe numbers of the impeller are 9~11, and the angle of blade and axis is 58 °~65 °.
Further, the energy storage converting apparatus includes containment vessel, the lithium battery being arranged in the containment vessel, institute
State and protective paint is provided with outside containment vessel.
Further, described screw thread diversion head is tapered, and the screw thread diversion head is provided centrally with screw thread diversion head and connect
Mouthful, the internal thread of connection vane type generating mechanism rotating shaft is provided with the screw thread diversion head interface, the screw thread diversion head
Outer conical surface has been provided with the external screw thread of guide functions.
Further, the taper of described screw thread diversion head is 15 ° ~ 25 °, and described external screw thread uses coarse thread, its
Pitch scope is 3.0 ~ 4.0mm, and the externally threaded rotation direction is identical with vane type generating mechanism direction of rotation, and external screw thread selection is closed
Suitable pitch, pitch, which crosses conference, causes gas buffer insufficient, contact that will not be with impeller large area, the efficiency and hair of generator
Electricity is also to be hoisted；If pitch is too small, gas can excessive turbulence, cause, to impeller very strong impact, to reduce making for impeller
With the life-span, 3.0 ~ 4.0mm pitch can make the contact of gas and blade maximum area, improve the operational efficiency and hair of generator
Electricity.
Further, described Flow-rate adjustment valve body is self-operated flow control valve, including：Valve casing, relative up and down set
Self-action valve plug and telescopic valve plug in valve casing, pressure sensitive film, spring, the integral inductor of temperature and pressure and self-action valve plug is put to slide
The dynamic linear bearing coordinated, air chamber, aperture regulation window, flow indication window, power interface, temperature indicator, pressure display unit, institute
The integral inductor of temperature and pressure is stated to be arranged on self-action valve plug and be connected with temperature indicator, pressure display unit circuit respectively, sleeve
The bottom connection pressure sensitive film and spring of formula valve plug, the top of the self-action valve plug has also been oppositely disposed electromagnet and permanent magnetism
Iron, the magnetic pole when electromagnet controls connection with the PLC and is powered is opposite with permanent magnet.
Further, described PLC is default according to the downstream current natural gas fluid parameter and flow control valve of detection
The size of current that the difference of natural gas fluid parameter adjusts electromagnet in real time makes current natural gas fluid parameter and default natural
The difference of gas fluid parameter is maintained in normal fluctuation range.
Further, the size of current of the real-time adjustment electromagnet makes current natural gas fluid parameter and default natural
The step that the difference of gas fluid parameter is maintained in normal fluctuation range is specifically included：When difference is more than the given threshold upper limit,
Then by increasing the aperture between the size of current reduction self-action valve plug of electromagnet and telescopic valve plug；When difference is less than setting
During bottom threshold, then increase the aperture between self-action valve plug and telescopic valve plug by reducing the size of current of electromagnet；If
When difference is located in the range of given threshold, then the size of current of electromagnet keeps constant.
Compared with prior art, advantage of the invention is embodied in：
1st, the present apparatus is connected by the way that the screw thread diversion head containing interior external double thread is vertical with impeller.Selection external screw thread pitch 3.0 ~
4.0mm, pitch, which crosses conference, causes gas buffer insufficient, contact that will not be with impeller large area, the efficiency of generator and generating
Amount is also to be hoisted；If pitch is too small, gas can excessive turbulence, cause to reduce impeller very strong impact the use of impeller
Life-span, 3.0 ~ 4.0mm pitch can make the contact of gas and blade maximum area, improve operational efficiency and the generating of generator
Amount；
2nd, the motor fixed cover that the present apparatus is used plays fixed and protection double action, and itself is made by stainless steel, corrosion resistant
Corrosion is strong, can be used for a long time；
3rd, the present apparatus uses energy storage converting apparatus, can provide continuous energy to flow control system, further, it is also possible to
Energy is provided to other dissipative cells；
4th, the present apparatus is generated electricity using pressure energy of natural gas, flexible utilization energy-rich gas, saves energy resources；
5th, the present apparatus is installed using built in pipeline, and equipment is simple, and flexible for installation, can be as an independent module, independently
Property it is strong, it is safe, reduce the work of lengthy and jumbled artificial maintenance and outside prospecting；
6th, the lobe numbers of the impeller of the present apparatus are odd numbers, aluminum alloy material, and consider its setting angle and gas
Contact angle so that the maximized workload for improving generator of energy, while also assures that the life-span of impeller；
7th, the present apparatus also has an advantage, due to the effect of follow-on flow control valve so that the flow fluctuation of gas rises and falls
Eliminate notable, erosion of the gas to natural gas line is reduced indirectly, the life-span of natural gas line is added.
Brief description of the drawings
Fig. 1 be the embodiment of the present invention utilize natural gas line built-in power generation be used for Flow-rate adjustment device structural representation
Figure.
Fig. 2 is the structural representation of the flow control valve of the embodiment of the present invention.
Fig. 3 is the screw thread diversion head of the embodiment of the present invention.
Shown in figure：1- flanges；2- housings；3- energy storage converting apparatus；4- wires；5- flow control valves；6- is natural
Feed channel；7- screw thread diversion heads；8- impellers；9- generators；10- motor fixed covers；11-PLC；12- sealed wiring posts；13-
One pressure transmitter；The temperature transmitters of 14- first；15- second pressure transmitters；16- second temperature transmitters；17- flowmeters；
18- valve casings；19- self-action valve plugs；The telescopic valve plugs of 20-；21- pressure sensitive films；22- springs；23- temperature and pressure one inductor；24- is straight
Bobbin is held；25- air chambers；26- aperture regulation windows；27- flow indication windows；28- power supplys；29- temperature indicators；30- pressure is shown
Device；31- electromagnet；32- permanent magnets；33- internal threads；34- external screw threads；35- screw thread diversion head interfaces.
Embodiment
Technical scheme is now subjected to clear, complete description simultaneously, by with reference to accompanying drawing, allowing the implementation of the present invention
The purpose, technical scheme and advantage of example are vivider and directly perceived, but the implementation of the present invention is not limited to this.The work not indicated especially
Skill parameter, can refer to routine techniques progress.
As shown in figure 1, a kind of utilize natural gas line built-in power generation to be used for the device for adjusting flow, including enclosure system,
Electricity generation system, flow control system,
Described enclosure system includes housing 2, is arranged on the flange 1 at the two ends of housing 2, and the flange 1 is used to connect housing 2
With natural gas line 6；
Vane type generating mechanism that described electricity generation system includes being fixed in the housing 2, it is arranged on that the housing 2 is outer and electricity
Road connects the energy storage converting apparatus 3 of the vane type generating mechanism output end, and the rotating shaft of the vane type generating mechanism is most
Front end is provided with the screw thread diversion first 7 for guiding air-flow to improve generating efficiency；
Described flow control system includes PLC11, the flow control valve 5 for being arranged on the middle part of housing 2, is arranged on flow tune
The temperature transmitter 14 of first pressure transmitter 13 and first of section valve 5 upstream, the second pressure for being arranged on the downstream of flow control valve 5
Transmitter 15, second temperature transmitter 16 and flowmeter 17, the flow control system are powered by energy storage converting apparatus 3,
The self-sufficient of electric energy is realized, the dependence of electric energy to external world is reduced；The PLC11 connects first pressure pick-up by circuit respectively
The temperature transmitter 14 of device 13 and first, flow control valve 5, second pressure transmitter 15, second temperature transmitter 16 and flowmeter
17, for being adjusted according to the natural gas fluid dynamic state of parameters detected in real time in flow control valve 5, the present embodiment, PLC11 is using west
The S7-200 weak signal testings of door subsidiary.
Specifically, described vane type generating mechanism includes generator 9, impeller 8, motor fixed cover 10, described hair
Motor 9 is fire-proof motor, is fixedly installed on by the motor fixed cover 10 of stainless steel in housing 2, and the motor of stainless steel is consolidated
Surely it is upper and lower two parts to cover 10 points, be partly fixed on housing 2 thereon, and then large area is covered in the surface of generator 9 for lower part.
The front order of the rotating shaft of the generator 9 is installed with screw thread diversion first 7 and impeller 8, and generator 9 produces voltage and sends electricity
Stream, passes to energy storage converting apparatus 3 by wire 4, the others such as flow control valve 5 and PLC11 is further applied afterwards
Energy consumption equipment.
The impeller 8 is fixed on the front end of the rotating shaft of generator 9, and the rear end of generator 9 is provided with sealed wiring post
12, connected between the sealed wiring post 12 and energy storage converting apparatus 3 by the circuit of wire 4.
Specifically, the lobe numbers of the impeller 8 are 9~11, and the angle of blade and axis is 58 °~65 °, can be maximum
The workload of the raising generator 9 of change, while also assures that the life-span of impeller 8.
Specifically, the energy storage converting apparatus 3 includes containment vessel, the lithium battery being arranged in the containment vessel,
Protective paint is provided with outside the containment vessel, lithium battery small volume, current density is big, and technology maturation cost is low, and maintenance is also convenient for can
Lean on, certainly, according to actual condition, other alternative batteries can also be selected.
As shown in figure 3, described screw thread diversion first 7 is tapered, the screw thread diversion first 7 is provided centrally with screw thread diversion head
The internal thread 33 of connection vane type generating mechanism rotating shaft, the screw thread are provided with interface 35, the screw thread diversion head interface 35
The outer conical surface of flow guiding head 7 has been provided with the external screw thread 34 of guide functions.Internal thread 33 uses fine thread, can lead screw thread
Stream first 7 and the even closer combination of rotating shaft, prevent there is larger loosening because of the long-time impact of natural gas or even comes off；Outside
Screw thread 34 uses coarse thread, according to the length of the flow of natural gas and screw thread diversion head, natural gas is had one suitably
Buffering, the contact of maximum area is carried out with impeller, so that generator farthest supplies electricity, therefore the pitch scope used
It is 3.0 ~ 4.0mm.
Specifically, the taper of described screw thread diversion first 7 is 15 ° ~ 25 °, and described external screw thread uses coarse thread, its
Pitch scope is 3.0 ~ 4.0mm, and the rotation direction of the external screw thread 34 is identical with vane type generating mechanism direction of rotation.External screw thread is selected
Suitable pitch, pitch, which crosses conference, causes gas buffer insufficient, contact that will not be with impeller large area, the efficiency of generator and
Generated energy is also to be hoisted；If pitch is too small, gas can excessive turbulence, cause, to impeller very strong impact, to damage impeller, subtract
The service life of few impeller, shows that 3.0 ~ 4.0mm pitch can make gas and blade maximum area by substantial amounts of test
Contact, improves the operational efficiency and generated energy of generator, while also will not impeller very strong impact in pairs.
As shown in Fig. 2 the described main body of flow control valve 5 is self-operated flow control valve, including：Valve casing 18, up and down phase
To the self-action valve plug 19 and telescopic valve plug 20 that are arranged in valve casing 18, pressure sensitive film 21, spring 22, the integral inductor of temperature and pressure
23rd, linear bearing 24, air chamber 25, aperture regulation window 26, flow indication window 27, the power supply being slidably matched with self-action valve plug 19 connect
Mouth 28, temperature indicator 29, pressure display unit 30, the integral inductor 23 of the temperature and pressure are arranged on self-action valve plug 19 and difference
It is connected with temperature indicator 29, the circuit of pressure display unit 30, the bottom connection pressure sensitive film 21 and spring 22 of telescopic valve plug 20, and
Conventional self-operated flow control valve is the same, the flow indication window 27, and temperature indicator 30, pressure display unit 29 can be real-time
Parameter value inside display, after the power supply 28 of flow control valve 5 is connected, regulation aperture regulation window 26 sets flow value, that is, led to
The position of setting control self-action valve plug 19 is crossed to adjust flow, after gas enters air inlet chamber 25, the sensed pressure ripple of pressure sensitive film 21
It is dynamic, by the fluctuating come control sleeve formula valve plug 20 of spring 22, conventional Flow-rate adjustment is realized, it is at that time, conventional by controlling
There is certain error in fluctuating to adjust the mode of flow for telescopic valve plug 20, namely setting flow and actual downstream
Flow is not consistent, and requires higher occasion to downstream fluid parameters precision for some, such error can be to equipment just
Often operation brings greatly destruction and dangerous, and therefore, the flow control valve 5 of the present embodiment has carried out some improvement, i.e., described
The top of self-action valve plug 19 has also been oppositely disposed electromagnet 31 and permanent magnet 32, wherein, electromagnet 31 is fixed on valve casing 18
On, permanent magnet 32 is fixed on the top of self-action valve plug 19, is moved up and down with self-action valve plug 19, the electromagnet 31 with it is described
Magnetic pole when PLC11 controls connection and energization is opposite with permanent magnet 32.
In the present embodiment, in order to further improve degree of regulation, with reference to the creative improvement to flow control valve 5, institute
The PLC11 stated is according to the downstream current natural gas fluid parameter of detection and the default natural gas fluid parameter of flow control valve 5
The size of current that difference adjusts electromagnet 31 in real time makes the difference of current natural gas fluid parameter and default natural gas fluid parameter
Value is maintained in normal fluctuation range, and when gas is by flow control valve 5, the pressure that flow control valve 5 can eliminate gas is inclined
Difference, flow deviation etc., fluctuating when being substantially reduced gas flowing.
Specifically, the size of current of the real-time adjustment electromagnet 31 makes current natural gas fluid parameter and default day
The step that the difference of right gas fluid parameter is maintained in normal fluctuation range is specifically included：When difference is more than the given threshold upper limit
When, then by increasing the aperture between the size of current reduction self-action valve plug 19 of electromagnet 31 and telescopic valve plug 20；It is on duty
When value is less than given threshold lower limit, then increase self-action valve plug 19 and telescopic valve plug by reducing the size of current of electromagnet 31
Aperture between 20；If difference is located in the range of given threshold, the size of current of electromagnet 31 keeps constant.Due to electromagnetism
Iron 31 is made up of induction coil and iron core, after energization, can produce a magnetic field opposite with the magnetic of permanent magnet 32 of lower section, because
This, the electric current of electromagnet 31 is bigger, and negative side's magnetropism of generation is bigger, i.e. the repulsive force of electromagnet 31 and permanent magnet 32 is bigger,
Self-action valve plug 19 is promoted to move down；When the electric current of electromagnet 31 becomes small, permanent magnet 32 will adsorb the iron core of electromagnet 31, make certainly
Dynamic formula valve plug 19 is moved up, so that moving up and down for regulation self-action valve plug 19 is realized, thus, by controlling the electric current of electromagnet 31 big
The small effect that can reach further regulation flow.As can be seen that temperature, pressure transmitter before and after the PLC11, device and
Flowmeter, flow control valve 5 constitutes a control closed-loop path together, in addition to flow control valve 5 adjustment effect of itself,
When feeding back to PLC11 fluid flow parameters fluctuation within a narrow range in allowed limits, PLC11 can also make corresponding electric current
Adjustment, making self-action valve plug 19, also dynamic is participated, and is accomplished regulation in real time, is further improved degree of regulation, prevent error
The excessive phenomenon damaged to down-stream system.
The present invention can consider that pipe network pressure energy must be comprehensively utilized, and overcome gas to convey by the way of built-in power generation comprehensively
The problem of common during with application, rationally effectively utilize the energy；Flow control valve 5 can jointly be adjusted by upper and lower two parts valve plug
Section, can timely feed back flow condition, can more accurately realize the regulation of flow again；The construction of screw thread diversion head, can be with
Enable amount maximizes the use；Equipment installs simple, is easy to operation, low cost and service life is long, saves cumbersome people
Work is supervized and safeguarded, is of very high actual application value and market prospects.
The above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and be not to the present invention
Embodiment restriction.For those of ordinary skill in the field, it can also make on the basis of the above description
Other various forms of changes or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all the present invention
Any modifications, equivalent substitutions and improvements made within spirit and principle etc., should be included in the protection of the claims in the present invention
Within the scope of.
Claims (10)
1. a kind of utilize natural gas line built-in power generation to be used for the device for adjusting flow, it is characterised in that:Including enclosure system, hair
Electric system, flow control system,
Described enclosure system includes housing (2), is arranged on the flange (1) at the housing (2) two ends；
Described electricity generation system include be fixed in the housing (2) vane type generating mechanism, be arranged on the housing (2) outside
And circuit connects the energy storage converting apparatus (3) of the vane type generating mechanism output end, the vane type generating mechanism
Rotating shaft is provided with the screw thread diversion head (7) for guiding air-flow to improve generating efficiency foremost；
Described flow control system includes PLC (11), the flow control valve (5) being arranged in the middle part of the housing (2), is arranged on
The first pressure transmitter (13) and the first temperature transmitter (14) of flow control valve (5) upstream, it is arranged on flow control valve (5)
Second pressure transmitter (15), second temperature transmitter (16) and the flowmeter (17) in downstream, the flow control system is by energy
Amount storage converting apparatus (3) power supply, the PLC (11) connects first pressure transmitter (13) and the first temperature by circuit respectively
Transmitter (14), flow control valve (5), second pressure transmitter (15), second temperature transmitter (16) and flowmeter (17), are used
According to the natural gas fluid dynamic state of parameters adjustment flow control valve (5) detected in real time.
2. according to claim 1 utilize natural gas line built-in power generation to be used for the device for adjusting flow, it is characterised in that:
Described vane type generating mechanism includes generator (9), impeller (8), motor fixed cover (10), and described generator (9) passes through
The motor fixed cover (10) of stainless steel is fixedly installed in housing (2), and the impeller (8) is fixed on the generator (9) rotating shaft
Front end, generator (9) rear end is provided with sealed wiring post (12), and the sealed wiring post (12) converts with energy storage
Connected between equipment (3) by wire (4) circuit.
3. according to claim 2 utilize natural gas line built-in power generation to be used for the device for adjusting flow, it is characterised in that:
Described generator (9) is fire-proof motor.
4. according to claim 2 utilize natural gas line built-in power generation to be used for the device for adjusting flow, it is characterised in that:
The lobe numbers of the impeller (8) are 9~11, and the angle of blade and axis is 58 °~65 °.
5. according to claim 1 utilize natural gas line built-in power generation to be used for the device for adjusting flow, it is characterised in that:
The energy storage converting apparatus (3) includes setting outside containment vessel, the lithium battery being arranged in the containment vessel, the containment vessel
There is protective paint.
6. according to claim 1 utilize natural gas line built-in power generation to be used for the device for adjusting flow, it is characterised in that:
Described screw thread diversion head (7) is tapered, and the screw thread diversion head (7) is provided centrally with screw thread diversion head interface (35), described
The internal thread (33) of connection vane type generating mechanism rotating shaft, the screw thread diversion head are provided with screw thread diversion head interface (35)
(7) outer conical surface has been provided with the external screw thread (34) of guide functions.
7. according to claim 6 utilize natural gas line built-in power generation to be used for the device for adjusting flow, it is characterised in that:
The taper of described screw thread diversion head (7) is 15 ° ~ 25 °, and described external screw thread uses coarse thread, its pitch scope is 3.0 ~
4.0mm, the rotation direction of the external screw thread (34) is identical with vane type generating mechanism direction of rotation.
8. according to claim 1 utilize natural gas line built-in power generation to be used for the device for adjusting flow, it is characterised in that:
Described flow control valve (5) main body is self-operated flow control valve, including：Valve casing (18), valve casing is oppositely arranged on up and down
(18) the integral inductor of self-action valve plug (19) and telescopic valve plug (20), pressure sensitive film (21), spring (22), temperature and pressure in
(23), linear bearing (24), air chamber (25), aperture regulation window (26), the flow indication being slidably matched with self-action valve plug (19)
Window (27), power interface (28), temperature indicator (29), pressure display unit (30), the integral inductor (23) of the temperature and pressure are set
It is connected on self-action valve plug (19) and respectively with temperature indicator (29), pressure display unit (30) circuit, telescopic valve plug
(20) bottom connection pressure sensitive film (21) and spring (22), the top of the self-action valve plug (19) has also been oppositely disposed electromagnetism
Iron (31) and permanent magnet (32), magnetic pole and permanent magnet when the electromagnet (31) controls to be connected and be powered with the PLC (11)
(32) it is opposite.
9. according to claim 8 utilize natural gas line built-in power generation to be used for the device for adjusting flow, it is characterised in that:
Described PLC (11) is according to the downstream current natural gas fluid parameter of detection and flow control valve (5) default natural gas fluid
The size of current that the difference of parameter adjusts electromagnet (31) in real time makes current natural gas fluid parameter and default natural gas fluid
The difference of parameter is maintained in normal fluctuation range.
10. according to claim 9 utilize natural gas line built-in power generation to be used for the device for adjusting flow, its feature exists
In:The size of current of the real-time adjustment electromagnet (31) makes current natural gas fluid parameter join with default natural gas fluid
The step that several differences is maintained in normal fluctuation range is specifically included：When difference is more than the given threshold upper limit, then by increasing
Power up the aperture between the size of current reduction self-action valve plug (19) of magnet (31) and telescopic valve plug (20)；When difference is less than
During given threshold lower limit, then increase self-action valve plug (19) and telescopic valve plug by reducing the size of current of electromagnet (31)
(20) aperture between；If difference is located in the range of given threshold, the size of current of electromagnet (31) keeps constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710503127.9A CN107143691A (en) | 2017-06-27 | 2017-06-27 | It is a kind of to utilize natural gas line built-in power generation to be used for the device for adjusting flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN111750113A (en) * | 2020-07-01 | 2020-10-09 | 合肥市久环给排水燃气设备有限公司 | Special equipment for gas pressure regulation |
| CN112483897A (en) * | 2019-09-11 | 2021-03-12 | 中国石油天然气股份有限公司 | Method and device for monitoring natural gas flow rate at outlet of pressure regulating valve and storage medium |
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