阅读说明：本技术 一种智能撬装式液化天然气槽车bog回收装置 (A kind of Intelligent skid-mounted liquefied natural gas tank car BOG recyclable device ) 是由 汪洋 唐晓伟 张健 王海卫 其他发明人请求不公开姓名 于 2019-09-03 设计创作，主要内容包括：本发明公开了一种智能撬装式液化天然气槽车BOG回收装置,包括空温式气化器、压缩机、计量装置、放散管线、PLC控制系统、远传监控系统,所述空温式气化器入口前端设有手动闸阀和电动截止阀A,所述手动闸阀和电动截止阀A为串联连接,通过低温金属软管与液化天然气槽车连接,所述空温式气化器出口后端设有电动截止阀B,所述电动截止阀B后连接有压缩机和计量装置,所述计量装置通过止回阀与城市燃气管网连接,所述PLC控制系统上连接有压力传感器、温度传感器、电动截止阀A、电动阀门、电动截止阀B、压缩机、计量装置,所述PLC控制系统与远传监控系统通过通讯协议连接。本发明能够自动启停、记录装置运行数据,实现远传监控。(The invention discloses a kind of Intelligent skid-mounted liquefied natural gas tank car BOG recyclable devices, including air-heating type gasifier, compressor, metering device, diffuse pipeline, PLC control system, remote control system, air-heating type gasifier entrance front end is equipped with manual gate valve and electric check valve A, the manual gate valve and electric check valve A are to be connected in series, it is connect by cryogenic metal hose with liquefied natural gas tank car, air-heating type gasifier outlet rear end is equipped with electric check valve B, compressor and metering device are connected with after the electric check valve B, the metering device is connect by check-valves with pipeline network of fuel gas in city, pressure sensor is connected in the PLC control system, temperature sensor, electric check valve A, electrically operated valve, electric check valve B, compressor, metering device, the PLC control system with Remote control system is connected by communications protocol.The present invention can automatic start-stop, recording device operation data, realize Remote monitoring.)

1. a kind of Intelligent skid-mounted liquefied natural gas tank car BOG recyclable device, including air-heating type gasifier (3), compressor (5), Metering device (6), release pipeline (10), PLC control system (12), remote control system (13), it is characterised in that: the air temperature Formula gasifier (3) entrance front end is equipped with manual gate valve (1) and electric check valve A (2), the manual gate valve (1) and electronic cut-off Valve A (2) is to be connected in series, and is connect by cryogenic metal hose (11) with liquefied natural gas tank car (15), the air temperature type gasification Device (3) exports rear end and is equipped with electric check valve B (4), and (4) rear end electric check valve B, which is linked in sequence, the compressor (5) With the metering device (6), the metering device (6) is connect by check-valves (7) with pipeline network of fuel gas in city (14), the PLC Pressure sensor, temperature sensor, electric check valve A (2), electrically operated valve (8), electronic cut-off are connected in control system (12) Valve B (4), compressor (5), metering device (6), the PLC control system (12) and the remote control system (13) are by leading to Agreement connection is interrogated, the data of whole device in the process of running can be transferred to PLC control system (12) and remote control system (13), long-range record and control are realized.

2. a kind of Intelligent skid-mounted liquefied natural gas tank car BOG recyclable device according to claim 1, it is characterised in that: The manual gate valve (1), electric check valve A (2), air-heating type gasifier (3), electric check valve B (4), compressor (5), metering Device (6), check-valves (7) pass through stainless-steel seamless pipe between pipeline network of fuel gas in city (14) and connect.

3. a kind of Intelligent skid-mounted liquefied natural gas tank car BOG recyclable device according to claim 1, it is characterised in that: (2) rear end electric check valve A is equipped with pressure sensor, the air-heating type gasifier (3) outlet be equipped with temperature sensor and Pressure sensor, compressor (5) rear end are equipped with pressure sensor.

4. a kind of Intelligent skid-mounted liquefied natural gas tank car BOG recyclable device according to claim 1, it is characterised in that: Air-heating type gasifier (3) the front end manual gate valve (1) is in normally open, and valve, air temperature can be turned off manually in when emergency (3) air inlet of formula gasifier is controlled by electric check valve A (2), after the liquefied natural gas tank car (15) connects, presses starting Button, electric check valve A (2) are opened, and air-heating type gasifier (3) the entrance forefront pressure sensor and PLC control are System (12) connection, for recording air-heating type gasifier (3) inlet pressure, the electric check valve A (2) and PLC control are System (12) connection, as air-heating type gasifier (3) inlet pressure≤0.19MPa, electric check valve A (2) is automatically closed.

5. a kind of Intelligent skid-mounted liquefied natural gas tank car BOG recyclable device according to claim 1, it is characterised in that: The pressure sensor and temperature sensor of air-heating type gasifier (3) outlet rear end are connect with PLC control system (12), are used for The switch for controlling electric check valve B (4) and compressor (5), after air-heating type gasifier (3) export end pressure > 0.19MPa ,- When 20 DEG C≤temperature≤40 DEG C, electric check valve B (4) is opened, compressor (5) starting, as pressure≤0.19MPa or temperature <- At 20 DEG C, 40 DEG C of temperature >, electric check valve B (4) is closed, and compressor (5) is shut down.

6. a kind of Intelligent skid-mounted liquefied natural gas tank car BOG recyclable device according to claim 1, it is characterised in that: The pressure sensor of compressor (5) outlet rear end is connect with the PLC control system (12), is used for recording compressed machine (5) Outlet pressure is controlled when compressor (5) outlet pressure is more than 1.2 times of pipe network running pressure by PLC control system (12) Compressor (5) is shut down.

7. a kind of Intelligent skid-mounted liquefied natural gas tank car BOG recyclable device according to claim 1, it is characterised in that: Release pipeline (10) is also connected with before and after the air-heating type gasifier (3), the release pipeline (10) is equipped with electrically operated valve (8) With safety valve (9), starts electrically operated valve (8) and safety valve (9) in time when diffusing pipeline (10) pressure and being more than release pressure, protect Card system operational safety.

8. a kind of Intelligent skid-mounted liquefied natural gas tank car BOG recyclable device according to claim 1, it is characterised in that: The metering device (6) is used to record the quantity of BOG in every liquefied natural gas tank car (15) of recycling, controls system by PLC The long-distance metering and record for (12) realization BOG recycling quantity of uniting, while charging system is equipped in PLC control system (12), it is described There is monovalent setup module in charging system, passes through in operational process manually in the unit price of the backstage PLC input recycling BOG, it can be certainly The dynamic amount of money for calculating every tank car recycling BOG, networking generate the two dimensional code of the corresponding amount of money, and tank car car owner passes through mobile phone scanning two Dimension code can have the BOG recycling gold of the corresponding amount of money to enter car owner's account.

9. a kind of Intelligent skid-mounted liquefied natural gas tank car BOG recyclable device according to claim 1, it is characterised in that: The BOG recyclable device can more parallel connections, it is unified to be controlled by a remote control system (13), form a set of large size BOG and recycle System realizes that BOG is recycled simultaneously in more liquefied natural gas tank cars (15).

Technical field

The present invention relates to BOG recovery technology field more particularly to a kind of prizing liquefied natural gas tank car BOG recycling dresses It sets.

Background technique

The entrucking pressure requirements of liquefied natural gas tank car storage tank are no more than 0.2MPa, but tank car stores up after the completion of unloading Pressure is typically about 0.45MPa in tank, and in order to reach entrucking requirement, tank car car owner mostly uses emptying mode to handle in tank car BOG.Such processing mode, on the one hand causes the waste of the energy, and another side also will increase the danger in hazardous gas discharge process With cause environmental pollution.

Under conditions of ambient enviroment has gas distributing system, it is incorporated to the side of BOG in neighbouring gas distributing system recycling tank car Formula more economical and effective, the currently used pipe network BOG recyclable device that is incorporated to generally comprise gasifier, compressor and metering device, Recovery principle is that the BOG in tank car is heated through gasifier, and neighbouring gas distributing system, this kind operation are incorporated to after being boosted by compressor Mode needs the necessary supervision on the scene of staff, not can guarantee going on smoothly for BOG recycling if staff leaves, simultaneously The metering of recycling tolerance needs manual record, on the one hand increases employee work amount, is on the other hand also easy to produce manual operation Error.

Therefore, the BOG recyclable device for needing a kind of intelligent liquefied natural gas tank car at present, can automatically control BOG recycling The start and stop of device, real time monitoring record BOG data collection, realize the fully automatic operation of BOG recovery process.

Summary of the invention

Technical problem to be solved by the invention is to provide the dresses that one kind can intelligently recycle BOG in liquefaction natural gas tank car Set, the device have can automatic start-stop, record operation data, automatic payment BOG recycling gold, realize the function of Remote monitoring.

In order to solve the above technical problems, the present invention provides a kind of Intelligent skid-mounted liquefied natural gas tank car BOG recyclable device, Including air-heating type gasifier, compressor, metering device, diffusion system, PLC control system, remote control system, feature exists In: air-heating type gasifier entrance front end is equipped with manual gate valve and electric check valve A, and the air-heating type gasifier exports rear end Equipped with electric check valve B, being linked in sequence after the electric check valve B has the compressor and the metering device, the metering Device is connect by check-valves with pipeline network of fuel gas in city, and pressure sensor, temperature sensing are connected in the PLC control system Device, electric check valve A, electrically operated valve, electric check valve B, compressor, metering device, the PLC control system and Remote monitoring System is connected by communications protocol, and the data of whole device in the process of running can be transferred to PLC control system and teletransmission prison Control system realizes long-range record and control.

Further, the manual gate valve and electric check valve A are to be connected in series, by low between liquefied natural gas tank car Warm connection by metal hose passes through flanged joint between each pipeline.

Further, the manual gate valve, electric check valve A, air-heating type gasifier, electric check valve B, compressor, meter Measure device, check-valves, between pipeline network of fuel gas in city by stainless-steel seamless pipe connection, the connection type of each pipe fitting and equipment room For flanged joint.

Further, the rear end the electric check valve A is equipped with pressure sensor, and the air-heating type gasifier outlet is equipped with temperature Sensor and pressure sensor are spent, the compressor rear end is equipped with pressure sensor.

Further, air-heating type gasifier front end manual gate valve is in normally open, and when emergency can close manually Valve closing door, air-heating type gasifier air inlet are controlled by electric check valve A, and the liquefied natural gas tank car is connected with the device Afterwards, start button is pressed, electric check valve A is opened, and the air-heating type gasifier entrance forefront pressure sensor and the PLC are controlled System connection processed, for recording air-heating type gasifier inlet pressure, the electric check valve A is connect with the PLC control system, As gasifier inlet pressure≤0.19MPa, electric check valve A is automatically closed.

Further, the air-heating type gasifier outlet rear end pressure sensor and temperature sensor and the PLC control System connection, for controlling the switch of electric check valve B and compressor, end pressure > behind air-heating type gasifier outlet When 0.19MPa, -20 DEG C≤temperature≤40 DEG C, electric check valve B is opened, compressor start, when pressure≤0.19MPa or temperature At < -20 DEG C, 40 DEG C of temperature >, electric check valve B is closed, compressor shutdown.

Further, compressor outlet rear end pressure sensor is connect with the PLC control system, for recording pressure Contracting machine outlet pressure is controlled by PLC control system and is pressed when compressor delivery pressure is more than 1.2 times of pipe network running pressure Contracting machine is shut down.

Further, release pipeline is also connected with before and after the air-heating type gasifier, the release pipeline is equipped with electronic Valve and safety valve start valve and safety valve when diffusing line pressure and being more than release pressure in time, guarantee system operation peace Entirely.

Further, the metering device is used to record the quantity of BOG in every liquefied natural gas tank car of recycling, passes through PLC control system realizes the long-distance metering and record of BOG recycling quantity, while charging system is equipped in PLC control system, described Have monovalent setup module in charging system, in operational process by manually the unit price of the backstage PLC input recycling BOG (unit: Member/mark side), the amount of money of every tank car recycling BOG can be calculated automatically, and networking generates the two dimensional code of the corresponding amount of money, tank car vehicle Main scanned the two-dimensional code by mobile phone can have the BOG recycling gold of the corresponding amount of money to enter car owner's account.

Further, the Intelligent skid-mounted liquefied natural gas tank car BOG recyclable device can more parallel connections, it is unified by one The control of platform remote control system, forms a set of large size BOG recovery system, realizes that BOG is returned simultaneously in more liquefied natural gas tank cars It receives.

Compared with prior art, the invention has the benefit that

The present invention can be heated up the remaining BOG in liquefied natural gas tank car by air-heating type gasifier, then via compressor Nearby urban gas ductwork is incorporated to after boosting, it can be with the start and stop of automatic control device, the fortune of self-recording unit in removal process Row data, the BOG for needing to pay tank car car owner, which recycles golden system, to be paid automatically with quick response code form, while can be real-time Remote monitoring is carried out, live manual operation is effectively reduced.

Detailed description of the invention

Fig. 1 is the structural diagram of the present invention.

Figure label:

1- manual gate valve 2- electric check valve A 3- air-heating type gasifier

4- electric check valve B 5- compressor 6- metering device

7- check-valves 8- electrically operated valve 9- safety valve

10- diffuses pipeline 11- cryogenic metal hose 12-PLC control system

13- remote control system 14- pipeline network of fuel gas in city 15- liquefied natural gas tank car.

Specific embodiment

Presently preferred embodiments of the present invention is elaborated with reference to the accompanying drawing, so that advantages and features of the invention can be more It is easy to be readily appreciated by one skilled in the art, apparent is explicitly defined to be made to protection scope of the present invention.

It is shown in Figure 1, a kind of Intelligent skid-mounted liquefied natural gas tank car BOG recyclable device, including air-heating type gasifier 3, compressor 5, metering device 6, release pipeline 10, PLC control system 12, remote control system 13, the air-heating type gasifier 3 Entrance front end is equipped with manual gate valve 1 and electric check valve A 2, and the manual gate valve 1 and electric check valve A 2 are to be connected in series, It is connect by cryogenic metal hose 11 with liquefied natural gas tank car 15, the air-heating type gasifier 3 exports rear end and is equipped with electronic section Being linked in sequence after only valve B 4, the electric check valve B 4 has the compressor 5 and the metering device 6, the metering device 6 It is connect by check-valves 7 with pipeline network of fuel gas in city.

Specifically, the manual gate valve 1, electric check valve A 2, air temperature type gasification 3, electric check valve B 4, compressor 5, Metering device 6, check-valves 7 pass through stainless-steel seamless pipe between pipeline network of fuel gas in city and connect, the connection of each pipe fitting and equipment room Mode is flanged joint.

Specifically, 2 rear end electric check valve A is equipped with pressure sensor P1, the outlet of air-heating type gasifier 3 is set There are temperature sensor T1 and pressure sensor P2,5 rear end of compressor is equipped with pressure sensor P3.

Specifically, the 3 front end manual gate valve 1 of air-heating type gasifier is in normally open, when emergency, can close manually Valve closing door, 3 air inlet of air-heating type gasifier are controlled by electric check valve A 2, and the liquefied natural gas tank car 15 connects with the device After connecting, press start button, electric check valve A 2 is opened, the 3 entrance forefront pressure sensor P1 of air-heating type gasifier with The PLC control system 12 connects, for recording 3 inlet pressure of air-heating type gasifier, the electric check valve A 2 with it is described PLC control system 12 connects, and as 3 inlet pressures of air-heating type gasifier≤0.19MPa, electric check valve A 2 is automatically closed.

It is controlled specifically, the air-heating type gasifier 3 exports the rear end pressure sensor P2 and temperature sensor T1 and PLC System 12 processed connects, for controlling the switch of electric check valve B 4 and compressor 5, end pressure after air-heating type gasifier 3 exports When > 0.19MPa, -20 DEG C≤temperature≤40 DEG C, electric check valve B 4 is opened, and compressor 5 starts, as pressure≤0.19MPa or When < -20 DEG C of temperature, 40 DEG C of temperature >, electric check valve B 4 is closed, and compressor 5 is shut down.

It is connect specifically, the compressor 5 exports rear end pressure sensor P3 with the PLC control system 12, for remembering 5 outlet pressure of compressor is recorded, when 5 outlet pressure of compressor is more than 1.2 times of pipe network running pressure, passes through PLC control system 12 control compressors 5 are shut down.

Specifically, being also connected with release pipeline 10 before and after the air-heating type gasifier 3, the release pipeline 10 is equipped with electronic Valve 8 and safety valve 9 start electrically operated valve 8 and safety valve 9 when diffusing 10 pressure of pipeline and being more than release pressure in time, guarantee System operational safety.

Specifically, the metering device 6 is used to record the quantity of BOG in every liquefied natural gas tank car of recycling, pass through The PLC control system 12 realizes the long-distance metering and record of BOG recycling quantity, while charge is equipped in PLC control system 12 System, there is monovalent setup module in the charging system, by manually in the list of the backstage PLC input recycling BOG in operational process Valence (unit: member/mark side), can calculate the amount of money of every tank car recycling BOG automatically, and networking generates the two dimension of the corresponding amount of money Code, tank car car owner is scanned the two-dimensional code by mobile phone can have the BOG recycling gold of the corresponding amount of money to enter car owner's account.

Specifically, be connected with pressure sensor P1, P2, P3 in the PLC control system 12, temperature sensor T1 is electronic Shut-off valve A2, electric check valve B4, compressor 5, metering device 6 and electrically operated valve 8, the PLC control system 12 are supervised with teletransmission Control system 13 is connected by communications protocol, and the data of whole device in the process of running can be transferred to 12 He of PLC control system Remote control system 13 realizes long-range record and control.

Specifically, the intelligence BOG recyclable device can more parallel connections, unified to be controlled by a remote control system, composition A set of large size BOG recovery system realizes that BOG is recycled simultaneously in more liquefied natural gas tank cars.

The operation principle of the present invention is that: start button is pressed, electric check valve A 2 is automatically opened, liquefied natural gas tank car BOG in 15 enters air-heating type gasifier 3 and heats up, pressure sensor P2 pressure rise, transmission signal to PLC control system 12, Electric check valve B 4 and compressor 5 are opened in control, and BOG enters gas pipe by metering device 6 after the boosting of compressor 5 Net 14 is delivered to downstream user, and in the process of running, the BOG yield that metering device 6 measures is transmitted to PLC control system 12, The system can calculate BOG recycling gold automatically, and money is got to car owner's account in the form of two dimensional code, pass through communications protocol Setting, the device can realize over-the-counter Remote monitoring.

The foregoing is merely better embodiment of the invention, protection scope of the present invention is not with above embodiment Limit, as long as those of ordinary skill in the art's equivalent modification or variation made by disclosure according to the present invention, should all be included in power In the protection scope recorded in sharp claim.