CN106051465A - Intelligent heat exchange and pressure regulating device of natural gas - Google Patents
Intelligent heat exchange and pressure regulating device of natural gas Download PDFInfo
- Publication number
- CN106051465A CN106051465A CN201610593483.XA CN201610593483A CN106051465A CN 106051465 A CN106051465 A CN 106051465A CN 201610593483 A CN201610593483 A CN 201610593483A CN 106051465 A CN106051465 A CN 106051465A
- Authority
- CN
- China
- Prior art keywords
- pressure
- regulator
- turbine
- heat exchange
- heat exchanger
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
Abstract
The invention discloses an intelligent heat exchange and pressure regulating device of natural gas. The intelligent heat exchange and pressure regulating device comprises a pressure regulating system, a heat exchange system and a control system, wherein the pressure regulating system is arranged between a high pressure pipeline and a low pressure pipeline, and comprises a heat exchanger, a safety shut-off valve, a first pressure regulator, a turbine and a second pressure regulator; the heat exchange system comprises the heat exchanger, a compressor, an evaporator and an expansion valve; the control system comprises a PLC, a clutch, a rotational speed sensor, a touch screen, a pressure sensor and a temperature sensor; the pressure sensor and the temperature sensor are arranged on a pipeline at the front end of the low pressure pipeline; the rotational speed sensor is arranged on a mechanical shaft of the turbine; and the compressor of the heat exchange system is connected with the turbine of the pressure regulating system through the clutch. According to the intelligent heat exchange and pressure regulating device, the differential pressure of the pipelines is fully utilized, and the pressure regulating device does not need to be heated through a gas boiler and an electric heater, so that the waste of resources is avoided, and the production cost is reduced.
Description
Technical field
The present invention relates to the technical field of natural gas applications, be specifically related to a kind of natural gas intelligent heat exchange regulator.
Background technology
Along with natural gas is widely applied in commercial production as clean energy resource, at the proportion shared by energy resource consumption
By increasing, in the problem such as environment, improvement haze, there is very important effect to improving.
At present, the transport of domestic and international natural gas mainly uses the means such as compression boosting and low-temperature liquefaction, no matter which kind of uses
Mode, to user, is required for blood pressure lowering and processes during use.Conventional buck mode is all to carry out throttling expansion, the most in vain by choke valve
Waste kinetic energy produced by a large amount of pressure reduction in vain, and need substantial amounts of heat that gas is heated, to offset throttling expansion
Produced cold energy, overcomes the damage that pipeline and voltage adjusting device are caused by cryogenic natural gas.At present, Gas Pressure Regulating Equipment heat exchange
System all uses electrical heating or boiler to add hot water, then by water and heat exchange gas.Electrical heating needs pressure regulation place to provide relatively
Big power supply capacity, and efficiency is low, energy consumption is high, uses in explosion-proof place and there is also potential safety hazard.Boiler heating needs in peace
The whole district sets up boiler room, is connected on the equipment of anti-explosion area investment by pipeline big, and boiler life is generally 1 year.
Summary of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of natural gas intelligent heat exchange regulator, to pipeline pressure
Difference makes full use of, it is not necessary to use gas fired-boiler and electric heater that regulator is carried out heat exchange, it is to avoid the waste of the energy,
Reduce production cost.
In order to achieve the above object, the technical scheme is that a kind of natural gas intelligent heat exchange regulator, including adjusting
Pressure system, heat-exchange system and control system, described voltage-regulating system is arranged between high pressure line and low-pressure line, voltage-regulating system bag
Including heat exchanger, safety cut-off valve, the first pressure regulator, turbine and the second pressure regulator, heat exchanger one end is connected with high pressure line,
The heat exchanger other end is connected with safety cut-off valve, and safety cut-off valve and the first pressure regulator are connected, the first pressure regulator and turbine
Machine is connected, and turbine is connected with low-pressure line, and the second pressure regulator is connected in parallel with turbine；Described heat-exchange system heat exchange
Device, compressor, vaporizer and expansion valve, compressor is connected with heat exchanger, and heat exchanger is connected with expansion valve, expansion valve and steaming
Sending out device, vaporizer is connected with compressor；Described control system include PLC, clutch, speed probe, touch screen,
Pressure transducer and temperature sensor, clutch, speed probe, touch screen, pressure transducer and temperature sensor are all and PLC
Controller is connected, and pressure transducer and temperature sensor are arranged at the pipeline of low-pressure line front end, and speed probe is arranged
On the mechanical axis of turbine；The compressor of described heat-exchange system is connected with the turbine of voltage-regulating system by clutch.
Described first pressure regulator is Self operated Regulator.
Described first pressure regulator is electric voltage regulator, and the first pressure regulator is connected with PLC.
Beneficial effects of the present invention: there is self-energy management functionality, moving in the flow hour low generation of turbine rotating speed
Can be little, the kinetic energy that turbine rotating speed height produces when flow is big is big, little with in flow hour needs heat exchange amount, needs when flow is big
Want heat exchange amount the most proportional, it is possible to achieve heat exchange energy self-sufficient, have that integrated level is high, operation cost is low, by ring
The many advantages such as the impact of border temperature is little, environmental protection.Pipeline pressure reduction is made full use of by the present invention, it is not necessary to use gas-fired boiler
Stove and electric heater carry out heat exchange to regulator, it is to avoid the waste of the energy, reduces production cost.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the present invention.
In figure, 1 is heat exchanger, and 2 is safety cut-off valve, and 3 is the first pressure regulator, and 4 is turbine, and 5 is the second pressure regulator, 6
For speed probe, 7 is pressure transducer, and 8 is clutch, and 9 is compressor, and 10 is vaporizer, and 11 is expansion valve, and 12 is temperature
Sensor, 13 is PLC, and 14 is high pressure line, and 15 is low-pressure line.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not paying creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
A kind of natural gas intelligent heat exchange regulator, including voltage-regulating system, heat-exchange system and control system, described pressure regulation system
System is arranged between high pressure line 14 and low-pressure line 15, and voltage-regulating system includes heat exchanger 1, safety cut-off valve the 2, first pressure regulator
3, turbine 4 and the second pressure regulator 5, heat exchanger 1 one end is connected with high pressure line 14, heat exchanger 1 other end and safety cut-off
Valve 2 is connected, and safety cut-off valve 2 is connected with the first pressure regulator 3, and the first pressure regulator 3 is connected with turbine 4, turbine 4 with
Low-pressure line 15 is connected, and the second pressure regulator 5 is connected in parallel with turbine 4.Described heat-exchange system heat exchanger 1, compressor 9, steaming
Sending out device 10 and expansion valve 11, compressor 9 is connected with heat exchanger 1, and heat exchanger 1 is connected with expansion valve 11, expansion valve 11 and steaming
Sending out device 10, vaporizer 10 is connected with compressor 9.Described control system includes PLC 13, clutch 8, speed probe
6, touch screen 16, pressure transducer 7 and temperature sensor 12, clutch 8, speed probe 6, touch screen 16, pressure transducer 7
All being connected with PLC 13 with temperature sensor 12, pressure transducer 7 and temperature sensor 12 are arranged at low-pressure line
The pipeline of 15 front ends, speed probe 6 is arranged on the mechanical axis of turbine 4.Touch screen 16 is HMI touch screen, with PLC control
Realize man-machine interaction between device 13, i.e. PLC 13 makes speed probe 6, pressure transducer 7 and temperature sensor 12 detect
Data show in real time on touch screen 16, staff can regulate clutch the 8, first pressure regulator by touch screen 16 simultaneously
3, the duty of the second pressure regulator 5.The compressor 9 of described heat-exchange system turbine 4 phase by clutch 8 with voltage-regulating system
Connect.
Natural gas via is crossed high pressure line 14 and is entered heat exchanger 1 and heat, and the natural gas after heating is through safety cut-off valve 2
Enter the first pressure regulator 3, then exported to low-pressure line 15 by turbine 4 or the second pressure regulator 5.Under normal circumstances, safety
Stop valve 2 and the first pressure regulator 3 are shown in a fully open operation, and when flow is the least, natural gas gives the low of downstream by the second pressure regulator 5
Pressure pipeline 15 supplies, and heat-exchange system does not works.When flow is bigger, the second pressure regulator 5 can not meet the low-pressure line 15 in downstream
Demand, natural gas promotes the impeller rotating flow low-pressure line 15 downstream of turbine 4, meets the low-pressure line 15 in downstream
The demand of flow.
When down stream low pressure pipeline demand is big, natural gas promotes the impeller of turbine 4 to rotate, and is arranged on turbine 4 machine
The velocity sensor 6 of tool axle detects the rotating speed of turbine 4.Meanwhile, pressure transducer 7 and temperature sensor 12 detect low-pressure line
The pressure and temperature of 15 front ends, when the rotating speed of turbine 4 and the pressure of low-pressure line 15 front end reach setting value, control system
PCL controller 13 make clutch 8 adhesive, drive compressor 9 to rotate.The kinetic energy utilizing turbine 4 to rotate drives compressor 9 work
Make, so that heat-exchange system work.Compressor 9 work makes the heat-conducting medium compression of heat-exchange system heat up, by heat exchanger 1 and sky
So gas carries out heat exchange, and the heat-conducting medium after heat exchange is reduced pressure by expansion valve 11, after vaporizer 10 cools down, again supplies compressor
9 recycle.Control system according to the real time temperature of the temperature sensor 12 of low-pressure line 15, can control the adhesive of clutch 8
Control heat-exchange system work with separating and shut down.Compressor 9 is connected with turbine 4 by clutch 8, makes full use of pressure regulation
The kinetic energy of natural gas flow in system, makes heat-exchange system need not power supply.Meanwhile, needed for the flow of voltage-regulating system and heat-exchange system
Heat exchange amount is proportional, when flow is big, needs heat exchange amount big, when flow is little, needs heat exchange amount little.
Pressure transducer 7 monitors the pressure of the low-pressure line 15 in downstream, when pressure exceedes setting value, the first pressure regulation in real time
Device 3 is started working, it is ensured that low-pressure line 15 pressure in downstream is in controlled range.Lost efficacy having emergency case or all pressure regulators
Time, safety cut-off valve 2 is closed, and cuts off the natural gas supply to downstream line 15, and the first pressure regulator 3 guarantees down stream low pressure pipeline
Safety.
Preferably, described first pressure regulator 3 is Self operated Regulator, can rely on and flow between high pressure line and low-pressure line
The pressure change of dynamic medium self automatically adjusts, and keeps when flow changes on the pipeline of down stream low pressure pipeline 15
Pressure constant.
Preferably, described first pressure regulator 3 is electric voltage regulator, and the first pressure regulator 3 is connected with PLC 13.PLC
The pressure of the pipeline of low-pressure line 15 front end that controller 13 detects according to pressure transducer 7 regulates the first pressure regulator 3 and makes pipeline
On pressure keep constant.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, the change that can readily occur in or replacement,
All should contain within protection scope of the present invention.
Claims (3)
1. a natural gas intelligent heat exchange regulator, it is characterised in that include voltage-regulating system, heat-exchange system and control system,
Described voltage-regulating system is arranged between high pressure line (14) and low-pressure line (15), and voltage-regulating system includes that heat exchanger (1), safety are cut
Disconnected valve (2), the first pressure regulator (3), turbine (4) and the second pressure regulator (5), heat exchanger (1) one end and high pressure line (14) phase
Connecting, heat exchanger (1) other end is connected with safety cut-off valve (2), and safety cut-off valve (2) is connected with the first pressure regulator (3),
First pressure regulator (3) is connected with turbine (4), and turbine (4) is connected with low-pressure line (15), the second pressure regulator (5) with
Turbine (4) is connected in parallel；Described heat-exchange system heat exchanger (1), compressor (9), vaporizer (10) and expansion valve (11), compression
Machine (9) is connected with heat exchanger (1), and heat exchanger (1) is connected with expansion valve (11), expansion valve (11) and vaporizer (10), steams
Send out device (10) to be connected with compressor (9)；Described control system includes PLC (13), clutch (8), speed probe
(6), touch screen (16), pressure transducer (7) and temperature sensor (12), clutch (8), speed probe (6), touch screen
(16), pressure transducer (7) be all connected with PLC (13) with temperature sensor (12), pressure transducer (7) and temperature
Sensor (12) is arranged at the pipeline of low-pressure line (15) front end, and speed probe (6) is arranged on the mechanical axis of turbine (4)
On；The compressor (9) of described heat-exchange system is connected with the turbine (4) of voltage-regulating system by clutch (8).
Natural gas intelligent heat exchange regulator the most according to claim 1, it is characterised in that described first pressure regulator (3)
For Self operated Regulator.
Natural gas intelligent heat exchange regulator the most according to claim 1, it is characterised in that described first pressure regulator (3)
For electric voltage regulator, the first pressure regulator (3) is connected with PLC (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610593483.XA CN106051465A (en) | 2016-07-26 | 2016-07-26 | Intelligent heat exchange and pressure regulating device of natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610593483.XA CN106051465A (en) | 2016-07-26 | 2016-07-26 | Intelligent heat exchange and pressure regulating device of natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106051465A true CN106051465A (en) | 2016-10-26 |
Family
ID=57417632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610593483.XA Pending CN106051465A (en) | 2016-07-26 | 2016-07-26 | Intelligent heat exchange and pressure regulating device of natural gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106051465A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388036A (en) * | 2017-08-30 | 2017-11-24 | 湖南申鑫能源科技有限公司 | Energy conserving system and its application process based on compressed natural gas |
| CN108050716A (en) * | 2018-01-16 | 2018-05-18 | 深圳中燃哈工大燃气技术研究院有限公司 | A kind of voltage-regulating system and method using geothermal heating natural gas |
| CN108518584A (en) * | 2018-03-14 | 2018-09-11 | 浙江大学宁波理工学院 | A kind of high-pressure natural gas pipe network pressure energy recycling system |
| CN115265249A (en) * | 2021-04-30 | 2022-11-01 | 中国石油天然气股份有限公司 | Device, method and equipment for regulating temperature of natural gas and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5606858A (en) * | 1993-07-22 | 1997-03-04 | Ormat Industries, Ltd. | Energy recovery, pressure reducing system and method for using the same |
| CN103422899A (en) * | 2013-08-09 | 2013-12-04 | 华南理工大学 | Process and device for generating power by pressure energy of small natural gas pipeline network |
| CN103867413A (en) * | 2012-12-12 | 2014-06-18 | 曹京良 | Improved automatic natural gas differential-pressure power generation heating system |
| CN204984493U (en) * | 2015-08-31 | 2016-01-20 | 北京市燃气集团有限责任公司 | Utilize electricity generation of natural gas pressure energy inflation and compression refrigeration's integrated device |
| CN105401990A (en) * | 2015-11-23 | 2016-03-16 | 北京建筑大学 | Natural gas pressure energy power generation pressure regulating device and method |
| CN105698005A (en) * | 2016-01-28 | 2016-06-22 | 侯奕 | Natural gas pressure difference energy recovery-LNG production system and process |
| CN205877725U (en) * | 2016-07-26 | 2017-01-11 | 郑州朗润智能装备股份有限公司 | Natural gas intelligence heat transfer regulator |
-
2016
- 2016-07-26 CN CN201610593483.XA patent/CN106051465A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5606858A (en) * | 1993-07-22 | 1997-03-04 | Ormat Industries, Ltd. | Energy recovery, pressure reducing system and method for using the same |
| CN103867413A (en) * | 2012-12-12 | 2014-06-18 | 曹京良 | Improved automatic natural gas differential-pressure power generation heating system |
| CN103422899A (en) * | 2013-08-09 | 2013-12-04 | 华南理工大学 | Process and device for generating power by pressure energy of small natural gas pipeline network |
| CN204984493U (en) * | 2015-08-31 | 2016-01-20 | 北京市燃气集团有限责任公司 | Utilize electricity generation of natural gas pressure energy inflation and compression refrigeration's integrated device |
| CN105401990A (en) * | 2015-11-23 | 2016-03-16 | 北京建筑大学 | Natural gas pressure energy power generation pressure regulating device and method |
| CN105698005A (en) * | 2016-01-28 | 2016-06-22 | 侯奕 | Natural gas pressure difference energy recovery-LNG production system and process |
| CN205877725U (en) * | 2016-07-26 | 2017-01-11 | 郑州朗润智能装备股份有限公司 | Natural gas intelligence heat transfer regulator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388036A (en) * | 2017-08-30 | 2017-11-24 | 湖南申鑫能源科技有限公司 | Energy conserving system and its application process based on compressed natural gas |
| CN108050716A (en) * | 2018-01-16 | 2018-05-18 | 深圳中燃哈工大燃气技术研究院有限公司 | A kind of voltage-regulating system and method using geothermal heating natural gas |
| CN108518584A (en) * | 2018-03-14 | 2018-09-11 | 浙江大学宁波理工学院 | A kind of high-pressure natural gas pipe network pressure energy recycling system |
| CN115265249A (en) * | 2021-04-30 | 2022-11-01 | 中国石油天然气股份有限公司 | Device, method and equipment for regulating temperature of natural gas and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Mammoli et al. | Energetic, economic and environmental performance of a solar-thermal-assisted HVAC system | |
| CN106051465A (en) | Intelligent heat exchange and pressure regulating device of natural gas | |
| CN106224040A (en) | A kind of electric heating energy-storage polygenerations systeme | |
| AU2016275938A1 (en) | Hot water heating device having solar energy and off-peak electric heating energy storage and application | |
| JP3230102U (en) | Comprehensive energy system based on reversible expander | |
| KR101790294B1 (en) | Heat pump system composed of several heat storages and solar heat collectors for district heating | |
| CN108425784A (en) | A kind of water pumping compressed air energy-storage and its operation method | |
| CN104989459A (en) | Intelligent natural gas pipe network pressure energy power generating device and control method thereof | |
| CN102518566A (en) | Centralized cooling system for wind turbine generator system | |
| CN205877725U (en) | Natural gas intelligence heat transfer regulator | |
| Demirel et al. | Energy conservation | |
| Zhao et al. | Operation regulation analysis of solar heating system with seasonal water pool heat storage | |
| CN105136511A (en) | Ground source heat pump and ground source side heat exchange test system and control method thereof | |
| CN202304166U (en) | Control device for electronic expansion valve of heat pump water heater | |
| CN203298470U (en) | Air-conditioner water heater using compressed air energy | |
| CN204082093U (en) | A kind of natural gas well head based on pressure energy generating and heat pump heats throttle system | |
| Farzan | The study of thermostat impact on energy consumption in a residential building by using TRNSYS | |
| CN204851334U (en) | Intelligent natural gas pipe network pressure can power generation facility | |
| CN103397918A (en) | Back-pressure car driving blower system and method adopting variable-frequency power generator for speed regulation | |
| Wang et al. | Commissioning an Existing Heat Recovery Chiller System. | |
| WO2021103845A1 (en) | Control method for air conditioner under refrigeration conditions, and air conditioner | |
| CN102878739A (en) | Power control cabinet for water source heat pump air conditioner | |
| CN208253839U (en) | Critical-cross carbon dioxide air source heat pump is cold, warm, water combined supply system | |
| CN104764172A (en) | Electricity saving method of central air-conditioning systems | |
| CN210568773U (en) | Energy-saving secondary station heat pump set based on internet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161026 |
|
| RJ01 | Rejection of invention patent application after publication |