CN215340745U

CN215340745U - Catalytic light hydrocarbon gas controller

Info

Publication number: CN215340745U
Application number: CN202120363910.1U
Authority: CN
Inventors: 鞠振河; 李鸿心; 刘铁刚
Original assignee: Shenyang Xinyuanrui Technology Co ltd
Current assignee: Shenyang Xinyuanrui Technology Co ltd
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2021-12-28
Anticipated expiration: 2031-02-08

Abstract

Catalytic light hydrocarbon gas control device belongs to control system technical field, especially relates to a catalytic light hydrocarbon gas control device. The utility model provides a catalytic light hydrocarbon gas control device with good use effect. The utility model comprises a microprocessor part, an intermediate relay circuit, a GPRS network, a power input part, a power anti-jamming circuit, an analog quantity acquisition part and a drive circuit, and is characterized in that a control signal output port of the microprocessor part is connected with a control signal input port of the intermediate relay circuit through the drive circuit, a detection signal input port of the microprocessor part is connected with a detection signal output port of the analog quantity acquisition part, an information transmission port of the microprocessor part is connected with an information transmission port of the GPRS network, and an electric energy input end of the power input part is connected with the power anti-jamming circuit.

Description

Catalytic light hydrocarbon gas controller

Technical Field

The utility model belongs to the technical field of control systems, and particularly relates to a catalytic light hydrocarbon gas control device.

Background

Light hydrocarbons are byproducts of oil extraction and processing, and belong to hydrocarbon substances. The components of the petroleum are known, the first-stage product of the petroleum in the distillation process is natural gas with carbon atoms of C1 and C2, the second-stage product is liquefied petroleum gas with carbon atoms of C3 and C4, the fourth-stage product is gasoline with carbon atoms of C7-C12, and the light hydrocarbon is the third-stage hydrocarbon product between the liquefied petroleum gas and the gasoline with carbon atoms of C5 and C6 and is liquid at normal temperature. In the former oil exploitation process, only a few light hydrocarbons are used as fuel and chemical raw material, and the rest is burnt by a spot 'torch'.

Light hydrocarbon as fuel can replace fire coal and fuel oil, has strategic significance on environmental protection and energy sustainable development in China, and has been rapidly developed in recent years.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides a catalytic light hydrocarbon gas control device with good use effect.

In order to achieve the purpose, the utility model adopts the following technical scheme that the utility model comprises a microprocessor part, an intermediate relay circuit, a GPRS network, a power input part, a power anti-jamming circuit, an analog quantity acquisition part and a driving circuit, the control signal output port of the microprocessor part is connected with the control signal input port of the intermediate relay circuit through the drive circuit, the detection signal input port of the microprocessor part is connected with the detection signal output port of the analog quantity acquisition part, the information transmission port of the microprocessor part is connected with the information transmission port of the GPRS network, the electric energy input end of the power supply input part is connected with the power supply anti-jamming circuit, and the electric energy output end of the power supply input part is respectively connected with the power supply port of the microprocessor part, the power supply port of the intermediate relay circuit, the power supply port of the GPRS network, the power supply port of the analog quantity acquisition part and the power supply port of the drive circuit.

As a preferable scheme, the microprocessor part comprises an STM32F407VGT model U, wherein pins 23-26, 29-32, 67-72, 76, 77, 35-37, 89-93, 95, 96, 47, 48 and 51-54 of the U are respectively connected with ADC, PA, TMS, TCK, PA, BOOT, PB, and PB are correspondingly connected, and pins 15-18, 33, 34, 63-66, 78-80, 7-9, 81-88, and 55-62 of the U are respectively connected with PC, PCI, PC, OSC _ OUT, PD, PC, OSC _ OUT, PD-54, PA, PB, PA, PB;

97, 98, 1-5 and 38-46 of U4 are correspondingly connected with PE0, PE1, PE2, PE3, PE4, PE5, PE6, PE7, PE8, PE9, PE10, PE11, PE12, PE13, PE14 and PE15 respectively;

a 94 pin of U4 is connected with BOOT0, a 14 pin of U4 is connected with NEST, a 49 pin of U4 is respectively connected with one ends of GND and a capacitor C16 through a capacitor C14, the other end of C16 is connected with a 73 pin of U4, a12 pin of U4 is respectively connected with one end of a crystal oscillator Y1 and one end of a capacitor C13, the other end of Y1 is respectively connected with a 13 pin of U4 and one end of a capacitor C12, and the other end of C12 is respectively connected with the other ends of GND and C13;

the pin 6 of U4 is connected with the cathode of diode D3 and the cathode of diode D5 respectively, the anode of D3 is connected with +3.3V, the anode of D5 is connected with P1, the

pins

11, 19, 28, 50, 75, 100, 22 and 21 of U4 are connected with +3.3V, and the

pins

10, 27, 74, 99 and 20 of U4 are connected with GND;

OSC32_ IN is respectively connected with one end of a capacitor C11 and one end of a crystal oscillator Y2, the other end of Y2 is respectively connected with OSC32_ OUT and one end of a capacitor C15, and the other end of C15 is respectively connected with the other end of C11 and GND;

pins 1-4 of the connector P2 are correspondingly connected with the +3.3V, TMS, TCK and GND respectively;

pins 1-3 of the connector P3 are correspondingly connected with PA9, PA10 and GND respectively;

NEST is respectively connected with one end of a resistor R25 and one end of a capacitor C17, the other end of C17 is connected with GND, and the other end of R25 is connected with + 3.3V;

BOOT0 is connected with GND and one end of a resistor R24 through a resistor R23, and the other end of R24 is connected with BOOT 1;

+3.3V is connected to one end of capacitors C1-C10, and the other end of C1-C10 is connected to GND.

As another preferred scheme, the GPRS network of the present invention includes a SIM800C chip U16,

pins

1 and 2 of U16 are respectively and correspondingly connected to SIM800_ TXD and SIM800_ RXD, pin 6 of U16 is connected to PB4 through a resistor R37,

pins

8, 13, 19 and 21 of U16 are connected to GND, pins 15 to 18 of U16 are respectively and correspondingly connected to SIM _ DATA, SIM _ CLK, SIM _ RST and SIM _ VDD, pins 24 to 27 of U16 are respectively and correspondingly connected to USB _ BUS, USB _ DP, USB _ DN and GND, pin 28 of U16 is connected to GND through a capacitor C32,

pins

30, 31 and 33 of U16 are connected to GND, pin 32 of U16 is connected to pin 1 of a connector J1, and pin 2 of J1 is connected to GND;

pins

34 and 35 of U16 are connected with +4.2V, pins 36 and 37 of U16 are connected with GND, pin 39 of U16 is connected with KEY, pin 41 of U16 is connected with the anode of a light-emitting diode D18 through a resistor R34, the cathode of D18 is connected with GND, and pin 42 of U16 is connected with PB5 through a resistor R36;

+5V _ SIMS00 connected to the anode of diode D15, the cathode of D15 connected to the anode of diode D16, and the cathode of D16 connected to + 4.2V;

+4.2V is respectively connected with a cathode of a voltage regulator tube ZD1, an anode of capacitors C18-C21, one end of a capacitor C22 and one end of a capacitor C23, and an anode of ZD1, a cathode of capacitors C18-C21, the other end of C22 and the other end of C23 are connected with GND;

PE3 is respectively connected with one end of a resistor R31 and the base of an NPN triode Q1 through a resistor R30, the collector of Q1 is connected with KEY, and the emitter of Q1 is respectively connected with the other end of R31 and GND;

the SIM800_ TXD is respectively connected with 1 pin of PE0 and a connector P4 through a resistor R28, 2 pins of P4 are respectively connected with one end of a resistor R29 and one end of PE1, the other end of R29 is respectively connected with one ends of the SIM800_ RXD and a resistor R32, and the other end of R32 is respectively connected with 3 pins of GND and P4.

As another preferred scheme, the GPRS network of the present invention includes an NPN triode Q2, wherein a collector of Q2 is connected to an anode of a diode D17 and a pin 1 of an HFD4/5-S chip K8, and a cathode of D17 is connected to a pin 8 of +5V, K8;

the base electrode of Q2 is respectively connected with one end of a resistor R33 and one end of a resistor R35, the other end of R33 is connected with PE4, and the other end of R35 is respectively connected with GND and the emitter electrodes of Q2;

pins

2 and 3 of K8 are correspondingly connected with +5V _ SIM800 and +5V respectively;

a pin 1 of a mobile phone card holder U17 is connected with GND, a pin 2 of a U17 is respectively connected with SIM _ VDD, one end of a capacitor C33 and a pin 1 of an SMF05C chip U18, the other end of the C33 is respectively connected with GND and a pin 2 of a U18, a pin 4 of the U18 is respectively connected with a pin 4 of the U17 and one end of a resistor R40, the other end of the R40 is respectively connected with one end of a capacitor C34 and SIM _ RST, the other end of the C34 is respectively connected with one end of a capacitor C35, one end of a capacitor C36 and GND, the other end of the C35 is respectively connected with one end of a resistor R39 and SIM _ DATA, the other end of the C36 is respectively connected with one end of a resistor R38 and SIM _ CLK, the other end of the R38 is respectively connected with a pin 6 of the U17 and a pin 6 of the U18, and the other end of the R39 is respectively connected with a pin 5 of the U17 and the pin 5 of the U18.

As another preferred scheme, the power input part of the utility model comprises a connector P10, a connector P10 is respectively connected with one end of a fuse F1 and a pin 1 of a connector CH1,

pins

2 and 3 of a connector CH1 are respectively connected with a connector P12, a ground GND2 and one end of an inductor L2, the other end of the fuse F2 is connected with an anode of a diode D2, a cathode of the diode D2 is respectively connected with a power supply 24VDD and one end of the inductor L2, the other end of the inductor L2 is respectively connected with one end of a capacitor C2 and a pin 4 of a common mode inductor T2, the other end of the capacitor C2 is respectively connected with the other end of the inductor L2 and a pin 2 of the T2, the pin 3 of the T2 is respectively connected with a positive pole of a capacitor C2, one end of a capacitor C2, a Vin + of a WRB2405YMD-6 WRD-WR 2 chip U2, the Vin-V-X-Y-X-Y-, One end of a capacitor C48 is connected with one end of an inductor L3, the other end of the inductor L3 is connected with the anode of the capacitor C43, +5V, the anode of the capacitor C46, one end of the capacitor C49 and Vin of an AMS1117-3.3 chip U20 respectively, and the Vout end of the AMS1117-3.3 chip U20 is connected with the anode of the capacitor C44, one end of the capacitor C45 and +3.3V of a power supply through the inductor L4 respectively;

vout-of a WRB2405YMD-6WR3 chip U19 is respectively connected with the cathode of a capacitor C42, the other end of the capacitor C48 and one end of an inductor L6, and the other end of the inductor L6 is respectively connected with the cathode of a capacitor C43, the cathode of a capacitor C46, the other end of the capacitor C49, the ground GND of an AMS1117-3.3 chip U20, the cathode of a capacitor C44, the other end of a capacitor C45 and the ground GND.

As another preferable scheme, the driving circuit comprises ULN2803 chips U14 and U15, pins 1-18 of the ULN2803 chip U15 are respectively connected with ports PC 8-PC 13, PD0, PD1, GND, 24VDD and OUT 10-OUT 17, and pins 1-18 of the ULN2803 chip U14 are respectively connected with ports PC 0-PC 7, GND, 24VDD and OUT 0-OUT 7.

As another preferable scheme, the power supply anti-interference circuit comprises an inductor L1, one end of the inductor L1 is connected with the power supply 24VDD, the anodes of the capacitors C24 to C27, and one ends of the capacitors C28 to C29, the other end of the inductor L1 is connected with the anode of the capacitor C30, one end of the capacitor C31, and the power supply +24VADC, the cathodes of the capacitors C24 to C27, the other ends of the capacitors C28 to C29, the cathode of the capacitor C30, and the other end of the capacitor C31 are connected with GND.

As another preferred scheme, the analog quantity acquisition part of the utility model comprises a resistor R41, one end of the resistor R41 is connected to a port ADCO _ IN, the other end of the resistor R41 is respectively connected with a cathode of a voltage regulator tube Z1, one end of the resistor R45 and one end of a resistor R43, the anode of the voltage regulator tube Z1 is respectively connected with the ground, the other end of the resistor R45 and one end of a capacitor C37, and the other end of the capacitor C37 is respectively connected with the other ends of the port ADC0 and the resistor R43;

one end of the resistor R42 is connected with the port ADC1_ IN, the other end of the resistor R42 is respectively connected with the cathode of the voltage regulator tube Z2, one end of the resistor R46 and one end of the resistor R44, the anode of the voltage regulator tube Z2 is respectively connected with the ground, the other end of the resistor R46 and one end of the capacitor C38, and the other end of the capacitor C38 is respectively connected with the port ADC1 and the other end of the resistor R44;

one end of the resistor R47 is connected with the port ADC2_ IN, the other end of the resistor R47 is respectively connected with the cathode of the voltage regulator tube Z3, one end of the resistor R51 and one end of the resistor R49, the anode of the voltage regulator tube Z3 is respectively connected with the ground, the other end of the resistor R51 and one end of the capacitor C39, and the other end of the capacitor C39 is respectively connected with the other ends of the port ADC2 and the resistor R49;

one end of the resistor R48 is connected with the port ADC3_ IN, the other end of the resistor R48 is respectively connected with the cathode of the voltage regulator tube Z4, one end of the resistor R52 and one end of the resistor R50, the anode of the voltage regulator tube Z4 is respectively connected with the ground, the other end of the resistor R52 and one end of the capacitor C40, and the other end of the capacitor C40 is respectively connected with the port ADC3 and the other end of the resistor R50;

one end of the resistor R53 is connected with the port ADC4_ IN, the other end of the resistor R53 is respectively connected with the cathode of the voltage regulator tube Z5, one end of the resistor R57 and one end of the resistor R55, the anode of the voltage regulator tube Z5 is respectively connected with the ground, the other end of the resistor R57 and one end of the capacitor C51, and the other end of the capacitor C51 is respectively connected with the port ADC4 and the other end of the resistor R55;

one end of the resistor R54 is connected with the port ADC5_ IN, the other end of the resistor R54 is respectively connected with the cathode of the voltage regulator tube Z6, one end of the resistor R58 and one end of the resistor R56, the anode of the voltage regulator tube Z6 is respectively connected with the ground, the other end of the resistor R58 and one end of the capacitor C52, and the other end of the capacitor C52 is respectively connected with the port ADC5 and the other end of the resistor R56;

pins 1-3 of the connector P5 are respectively and correspondingly connected with ports ADC0_ IN, +24VADC and GND;

pins 1-3 of the connector P6 are respectively and correspondingly connected with ports ADC1_ IN, +24VADC and GND;

pins 1-3 of the connector P7 are respectively and correspondingly connected with ports ADC2_ IN, +24VADC and GND;

pins 1-3 of the connector P8 are respectively and correspondingly connected with ports ADC3_ IN, +24VADC and GND;

pins 1-3 of the connector P9 are respectively and correspondingly connected with ports ADC4_ IN, +24VADC and GND;

pins 1-3 of the connector P11 are respectively connected with the ports ADC5_ IN, +24VADC and GND.

As another preferable scheme, the intermediate relay circuit comprises 65NB-1A-E chips U1-U13, wherein a pin 1 of U1 is respectively connected with one end of a resistor R2 and 24VDD through a resistor R1, the other end of R2 is connected with an anode of a light emitting diode D1, a cathode of D1 is respectively connected with pins 2 of OUT7 and U1, a pin 3 of U1 is connected with COM1, and a pin 4 of U1 is connected with Y07;

pin 1 of U2 is connected with one end of 24VDD and resistor R4 through resistor R3, the other end of R4 is connected with the anode of light emitting diode D2, the cathode of D2 is connected with pins 2 of OUT6 and U2, pin 3 of U2 is connected with COM1, and pin 4 of U2 is connected with Y06;

pin 1 of U3 is connected with one end of 24VDD and resistor R6 through resistor R5, the other end of R6 is connected with the anode of light emitting diode D4, the cathode of D4 is connected with pins 2 of OUT5 and U3, pin 3 of U3 is connected with COM1, and pin 4 of U3 is connected with Y05;

pin 1 of U5 is connected with one end of 24VDD and resistor R8 through resistor R7, the other end of R8 is connected with the anode of light emitting diode D6, the cathode of D6 is connected with pins 2 of OUT4 and U5, pin 3 of U5 is connected with COM1, and pin 4 of U5 is connected with Y04;

pin 1 of U6 is connected with one end of 24VDD and resistor R10 through resistor R9, the other end of R10 is connected with the anode of light emitting diode D7, the cathode of D7 is connected with pins 2 of OUT3 and U6, pin 3 of U6 is connected with COM1, and pin 4 of U6 is connected with Y03;

pin 1 of U7 is connected with one end of 24VDD and resistor R12 through resistor R11, the other end of R12 is connected with the anode of light emitting diode D8, the cathode of D8 is connected with pins 2 of OUT2 and U7, pin 3 of U7 is connected with COM1, and pin 4 of U7 is connected with Y02;

pin 1 of U8 is connected with one end of 24VDD and resistor R14 through resistor R13, the other end of R14 is connected with the anode of light emitting diode D9, the cathode of D9 is connected with pins 2 of OUT1 and U8, pin 3 of U8 is connected with COM1, and pin 4 of U8 is connected with Y01;

pin 1 of U9 is connected with one end of 24VDD and resistor R16 through resistor R15, the other end of R16 is connected with the anode of light emitting diode D10, the cathode of D10 is connected with pins 2 of OUTO and U9, pin 3 of U9 is connected with COM1, and pin 4 of U9 is connected with Y00;

pin 1 of U10 is connected with one end of 24VDD and resistor R18 through resistor R17, the other end of R18 is connected with the anode of light emitting diode D11, the cathode of D11 is connected with pins 2 of OUT17 and U10, pin 3 of U10 is connected with COM1, and pin 4 of U10 is connected with Y17;

pin 1 of U11 is connected with one end of 24VDD and resistor R20 through resistor R19, the other end of R20 is connected with the anode of light emitting diode D12, the cathode of D12 is connected with pins 2 of OUT16 and U11, pin 3 of U11 is connected with COM1, and pin 4 of U11 is connected with Y16;

pin 1 of U12 is connected with one end of 24VDD and resistor R22 through resistor R21, the other end of R22 is connected with the anode of light emitting diode D13, the cathode of D13 is connected with pins 2 of OUT15 and U12, pin 3 of U12 is connected with COM1, and pin 4 of U12 is connected with Y15;

pin 1 of U13 is connected with one end of 24VDD and resistor R27 through resistor R26, the other end of R27 is connected with the anode of light emitting diode D14, the cathode of D14 is connected with pins 2 of OUT14 and U13, pin 3 of U13 is connected with COM1, and pin 4 of U13 is connected with Y14;

a _ LINE is respectively connected with 1 pin of CJX2 type contactors KM 1-KM 5 and L1 ends of JQX-13F type relays K1-K7, 2 pins of KM 1-KM 5 are respectively correspondingly connected with Y07-Y03, and L2 ends of K1-K7 are respectively correspondingly connected with Y02-Y00 and Y17-Y14.

As another preferred scheme,

pins

3, 4 and 5 of KM1 to KM5 are respectively correspondingly connected with a _ LINE, B _ LINE and C _ LINE,

pins

9, 10 and 11 of KM1 are respectively correspondingly connected with C _1, B _1 and a _1,

pins

9, 10 and 11 of KM2 are respectively correspondingly connected with C _10, B _10 and a _10,

pins

9, 10 and 11 of KM3 are respectively correspondingly connected with C _11, B _11 and a _11,

pins

9, 10 and 11 of KM4 are respectively correspondingly connected with C _12, B _12 and a _12, and

pins

9, 10 and 11 of KM5 are respectively correspondingly connected with C _13, B _13 and a _ 13;

the COMA of K1-K2 is connected with A _ LINE, the COMA of K3-K4 is connected with B _ LINE, the COMA of K5-K7 is connected with C _ LINE, and the COMB of K1-K7 is connected with COM 1;

the SCA end and the SCB end of K1 are correspondingly connected with A _2 and N _2 respectively, the SCA end and the SCB end of K2 are correspondingly connected with A _4 and N _4 respectively, the SCA end and the SCB end of K3 are correspondingly connected with B _5 and N _5 respectively, the SCA end and the SCB end of K4 are correspondingly connected with B _6 and N _6 respectively, the SCA end and the SCB end of K5 are correspondingly connected with C _2 and N _2 respectively, the SCA end and the SCB end of K6 are correspondingly connected with C _3 and N _3 respectively, and the SCA end and the SCB end of K7 are correspondingly connected with F _7 and N _7 respectively.

The catalytic light hydrocarbon gas control device is applied to light hydrocarbon gas preparation equipment, the light hydrocarbon gas preparation equipment comprises a crude oil storage part and a gas preparation part, the crude oil storage part comprises an oil tank A and an oil tank B, the gas preparation part comprises a light hydrocarbon crude oil gas preparation tank, the oil tank A and the oil tank B are provided with an oil outlet, a first dispersion port, a nitrogen gas port, a liquid level meter, a second dispersion port, an oil discharge port (oil of a tank car enters the oil tank through the oil discharge port) and an overhaul port, and the oil outlet, the first dispersion port, the nitrogen gas port, the second dispersion port and the oil discharge port are all connected with valves;

the oil outlets of the oil tank A and the oil tank B are connected with one end of an oil pipeline, the other end of the oil pipeline is respectively connected with one end of an electric stop valve DF and one end of an oil delivery gate valve through a flowmeter, the other end of the DF is respectively connected with an oil inlet of a light hydrocarbon crude oil gas making tank and the other end of the oil delivery gate valve, an air inlet of the light hydrocarbon crude oil gas making tank is connected with an air outlet of an air buffer tank through an air inlet valve, and a control port of the air inlet valve is connected with an intermediate relay circuit; an inlet of the air buffer tank is respectively connected with an outlet of the first Roots blower and an outlet of the second Roots blower; the control ports of the first Roots blower and the second Roots blower are connected with an intermediate relay circuit (KM 4);

the gas outlet of the gas making tank for light hydrocarbon crude oil is connected with the gas inlet of the gas outlet tank through a gas outlet valve, and the gas outlet of the gas outlet tank is connected with an output ball valve through a gas supply valve, an electromagnetic valve and a pressure meter in sequence; the control port of the electromagnetic valve is connected with the intermediate relay circuit; the pressure detection port of the air outlet tank is connected with the input port (ADC3) of the analog quantity acquisition part; the control port of the air outlet valve is connected with the intermediate relay circuit; the control port of the air supply valve is connected with the intermediate relay circuit;

the nitrogen ports of the oil tank A and the oil tank B are connected with one end of a nitrogen pipeline, the other end of the nitrogen pipeline is connected with the outlet of an air compressor through a pressure gauge and a pressurizing valve in sequence, and the inlet of the air compressor is connected with the outlet of the nitrogen compressor through a dryer and a gate valve in sequence; the control port of the nitrogen machine is connected with an intermediate relay circuit (KM 2); the control port of the dryer is connected with an intermediate relay circuit (KM 3); the control port of the air compressor is connected with an intermediate relay circuit (KM 5); the control port of the pressure valve is connected with the intermediate relay circuit;

the pressure relief port of the light hydrocarbon crude oil gas preparation tank is connected with a pressure relief valve, and the control port of the pressure relief valve is connected with the intermediate relay circuit;

an oil drain port of the gas outlet tank is connected with an oil return port of the light hydrocarbon crude oil gas preparation tank through an oil drain valve, and a control port of the oil drain valve is connected with the intermediate relay circuit;

the control port of the electric heating part of the circulating pump of the light hydrocarbon crude oil gas preparation tank is connected with an intermediate relay circuit (KM 1);

pressure and temperature sensors of the light hydrocarbon crude oil gas preparation tank are connected with an analog quantity acquisition part (P9);

the liquid level meter of the light hydrocarbon crude oil gas making tank is connected with the analog quantity acquisition part (P8);

a differential pressure transmitter of the light hydrocarbon crude oil gas making tank is connected with an analog quantity acquisition part (P7);

the oil discharge ports of the oil tank A and the oil tank B are connected with an oil discharge pipeline.

As another preferred scheme, valves at the oil outlet, the first release port, the nitrogen port, the second release port, the oil discharge port and the man-hole are ball valves.

As another preferred scheme, the connecting pipe at the oil outlet adopts a DN40 connecting pipe, the connecting pipes at the first diffusing port and the second diffusing port adopt a DN50 connecting pipe, the connecting pipe at the nitrogen port adopts a DN20 connecting pipe, the connecting pipe at the oil discharging port adopts a DN80 connecting pipe, and the connecting pipe at the liquid level meter adopts a DN150 connecting pipe.

The oil tanks A and B of the present invention have a capacity of 50m³。

In addition, the air inlet valve, the pressure relief valve, the air outlet valve, the oil drain valve, the air supply valve and the pressurization valve are all pneumatic quick-cut ball valves, air source interfaces of the air inlet valve, the pressure relief valve, the air outlet valve, the oil drain valve, the air supply valve and the pressurization valve are respectively connected with an outlet of the air distribution cylinder through hoses, and an inlet of the air distribution cylinder is connected with an outlet of the air compressor through the oil-water separator and the gate valve in sequence.

The utility model has the beneficial effects.

The utility model is convenient for the reliable and accurate control of the light hydrocarbon gas preparation process through the mutual cooperation of the microprocessor part, the intermediate relay circuit, the GPRS network, the power input part, the power anti-interference circuit, the analog quantity acquisition part and the driving circuit.

Drawings

The utility model is further described with reference to the following figures and detailed description. The scope of the utility model is not limited to the following expressions.

FIG. 1 is a schematic diagram of a portion of the microprocessor circuit of the present invention.

Fig. 2 is a schematic diagram of a GPRS network circuit of the present invention.

Fig. 3 is a schematic diagram of the power input portion of the circuit of the present invention.

Fig. 4 is a schematic diagram of the drive circuit and power supply immunity circuit of the present invention.

FIG. 5 is a schematic diagram of the analog acquisition circuit of the present invention.

Fig. 6 and 7 are schematic diagrams of the intermediate relay circuit of the present invention.

FIG. 8 is a schematic view of the light hydrocarbon gas production apparatus of the present invention.

Fig. 9 is a partial enlarged view of fig. 8.

Fig. 10 is a flow chart of the present invention.

Detailed Description

As shown in the figure, the utility model comprises a microprocessor part, an intermediate relay circuit, a GPRS network, a power input part, a power anti-jamming circuit, an analog quantity acquisition part and a drive circuit, wherein a control signal output port of the microprocessor part is connected with a control signal input port of the intermediate relay circuit through the drive circuit, a detection signal input port of the microprocessor part is connected with a detection signal output port of the analog quantity acquisition part, an information transmission port of the microprocessor part is connected with an information transmission port of the GPRS network, an electric energy input end of the power input part is connected with the power anti-jamming circuit, and an electric energy output end of the power input part is respectively connected with a power port of the microprocessor part, a power port of the intermediate relay circuit, a power port of the GPRS network, a power port of the analog quantity acquisition part and a power port of the drive circuit.

The microprocessor part respectively controls the Roots blower, the electromagnetic valve, the air outlet valve, the air supply valve, the nitrogen machine, the dryer, the air compressor, the pressurizing valve, the pressure release valve, the oil drain valve and the electric heating part of the circulating pump through an intermediate relay circuit;

the microprocessor part acquires the pressure of the gas tank, the pressure and the temperature of the light hydrocarbon crude oil gas tank and the liquid level of the light hydrocarbon crude oil gas tank through the analog quantity acquisition part;

the microprocessor part acquires the temperature in the gas making tank, and when the temperature is lower than a lower limit set value; starting an electric heating part of the circulating pump to heat the gas making tank; when the temperature rises to the upper limit set value, the electric heating part of the circulating pump is closed, and heating is stopped;

the liquid level of the light hydrocarbon fuel in the oil tank is stabilized at a set value by controlling the opening and closing of the pressurizing valve;

the opening and closing of the air inlet valve is controlled by the pressure of the air tank, the air inlet valve is opened when the pressure of the air tank is lower than a lower limit set value, and the air inlet valve is closed when the pressure of the air tank exceeds an upper limit set value;

the pressure relief valve prevents the pressure of the gas making tank from being too high, opens to relieve the pressure when the pressure in the gas making tank exceeds a set value, and closes when the pressure in the gas making tank is lower than the set value;

the gas outlet valve controls the mixed air light hydrocarbon gas in the gas making tank to enter the gas outlet tank, and when the gas needs to be output, the gas outlet valve and the gas supply valve are opened simultaneously;

the oil drain valve controls the accumulated oil in the gas tank to flow back to the gas making tank.

The microprocessor part comprises an STM32F407VGT model U, wherein pins 23-26, 29-32, 67-72, 76, 77, 35-37, 89-93, 95, 96, 47, 48 and 51-54 of the U are respectively connected with ADC, PA, TMS, TCK, PA, BOOT, PB, and PB are respectively connected with PC, 0SC _ IN, 0SC _ OUT, PD, and PC are respectively connected with PC;

pins

11, 19, 28, 50, 75, 100, 22 and 21 of U4 are connected with +3.3V, and the

pins

10, 27, 74, 99 and 20 of U4 are connected with GND;

0SC32_ IN is respectively connected with one end of a capacitor C11 and one end of a crystal oscillator Y2, the other end of Y2 is respectively connected with 0SC32_ OUT and one end of a capacitor C15, and the other end of C15 is respectively connected with the other end of C11 and GND;

The GPRS network comprises a SIM800C chip U16, pins 1 and 2 of U16 are correspondingly connected with SIM800_ TXD and SIM800_ RXD respectively, pin 6 of U16 is connected with PB4 through resistor R37, pins 8, 13, 19 and 21 of U16 are connected with GND, pins 15 to 18 of U16 are correspondingly connected with SIM _ DATA, SIM _ CLK, SIM _ RST and SIM _ VDD respectively, pins 24 to 27 of U16 are correspondingly connected with USB _ BUS, USB _ DP, USB _ DN and GND respectively, pin 28 of U16 is connected with GND through capacitor C32, pins 30, 31 and 33 of U16 are connected with GND, pin 32 of U16 is connected with pin 1 of connector J1, and pin 2 of J1 is connected with GND;

pins 34 and 35 of U16 are connected with +4.2V, pins 36 and 37 of U16 are connected with GND, pin 39 of U16 is connected with KEY, pin 41 of U16 is connected with the anode of a light-emitting diode D18 through a resistor R34, the cathode of D18 is connected with GND, and pin 42 of U16 is connected with PB5 through a resistor R36; d18 shows the network status by flashing fast or slow, and flashing once every 1 second to show the unconnected network. Flashing once in 0.5 second, the connecting network is successfully sending the transmission data. A low light indicates that the network is not open. The GPRS network can be used to transmit system operating conditions (e.g., relay action conditions, analog acquisition conditions).

The GPRS network comprises an NPN triode Q2, a collector of the Q2 is connected with an anode of a diode D17 and a pin 1 of an HFD4/5-S chip K8 respectively, and a cathode of the D17 is connected with a pin 8 of +5V, K8 respectively;

pins

The power input part comprises P, P is respectively connected with one end of a fuse F and 1 pin of a DC005 connector CH, 2 and 3 pins of CH are respectively connected with P, GND and one end of an inductor L, the other end of F is connected with an anode of a diode D, a cathode of D is respectively connected with 24VDD and one end of the inductor L, the other end of L is respectively connected with one end of a capacitor C and 4 pins of a common mode inductor T, the other end of C is respectively connected with the other end of L and 2 pins of T, 3 pins of T are respectively connected with an anode of the capacitor C, one end of the capacitor C and a Vin + of a WRB2405 WRB-6 WR chip U, Vin-of U is respectively connected with 1 pin, a cathode of C and the other end of C of T, Vout +5V of U is respectively connected with an anode of the capacitor C, one end of the capacitor C and one end of the inductor L, the other end of L is respectively connected with Vin of the anode of the capacitor C, +5V, the anode of the capacitor C, one end of the capacitor C and a 111AMS 7-3.3 chip U, vout of U20 is respectively connected with the anode of the capacitor C44, one end of the capacitor C45 and +3.3V through the inductor L4;

the Vout-of U19 is connected with the cathode of capacitor C42, the other end of capacitor C48 and one end of inductor L6, and the other end of L6 is connected with the cathode of C43, the cathode of C46, the other end of C49, the GND of U20, the cathode of C44, the other end of C45 and the GND.

The driving circuit comprises ULN2803 chips U14 and U15, pins 1-18 of U15 are respectively connected with PCs 8-PC 13, PD0, PD1, GND, 24VDD and OUT 10-OUT 17, and pins 1-18 of U14 are respectively connected with PCs 0-PC 7, GND, 24VDD and OUT 0-OUT 7.

The power supply anti-interference circuit comprises an inductor L1, one end of an L1 is connected with a 24VDD terminal, anodes of capacitors C24-C27 and one ends of capacitors C28-C29 respectively, the other end of the L1 is connected with an anode of a capacitor C30, one end of a capacitor C31 and +24VADC respectively, cathodes of capacitors C24-C27, the other ends of capacitors C28-C29, a cathode of a capacitor C30 and the other end of a capacitor C31 are connected with GND respectively.

The analog quantity acquisition part comprises a resistor R41, one end of a R41 is connected with an ADC0_ IN, the other end of the R41 is respectively connected with a cathode of a voltage-stabilizing tube Z1, one end of a resistor R45 and one end of a resistor R43, an anode of the Z1 is respectively connected with the ground, the other end of the R45 and one end of a capacitor C37, and the other end of the C37 is respectively connected with the other ends of the ADC0 and the R43;

one end of a resistor R42 is connected with an ADC1_ IN, the other end of R42 is respectively connected with a cathode of a voltage regulator tube Z2, one end of a resistor R46 and one end of a resistor R44, an anode of Z2 is respectively connected with the ground, the other end of R46 and one end of a capacitor C38, and the other end of C38 is respectively connected with the other ends of the ADC1 and the R44;

one end of a resistor R47 is connected with an ADC2_ IN, the other end of R47 is respectively connected with a cathode of a voltage regulator tube Z3, one end of a resistor R51 and one end of a resistor R49, an anode of Z3 is respectively connected with the ground, the other end of R51 and one end of a capacitor C39, and the other end of C39 is respectively connected with the other ends of the ADC2 and the R49;

one end of a resistor R48 is connected with an ADC3_ IN, the other end of R48 is respectively connected with a cathode of a voltage regulator tube Z4, one end of a resistor R52 and one end of a resistor R50, an anode of Z4 is respectively connected with the ground, the other end of R52 and one end of a capacitor C40, and the other end of C40 is respectively connected with the other ends of the ADC3 and the R50;

one end of a resistor R53 is connected with an ADC4_ IN, the other end of R53 is respectively connected with a cathode of a voltage regulator tube Z5, one end of a resistor R57 and one end of a resistor R55, an anode of Z5 is respectively connected with the ground, the other end of R57 and one end of a capacitor C51, and the other end of C51 is respectively connected with the other ends of the ADC4 and the R55;

one end of a resistor R54 is connected with an ADC5_ IN, the other end of R54 is respectively connected with a cathode of a voltage regulator tube Z6, one end of a resistor R58 and one end of a resistor R56, an anode of Z6 is respectively connected with the ground, the other end of R58 and one end of a capacitor C52, and the other end of C52 is respectively connected with the other ends of the ADC5 and the R56;

pins 1-3 of the connector P5 are correspondingly connected with an ADC0_ IN, +24VADC and GND respectively;

pins 1-3 of the connector P6 are correspondingly connected with an ADC1_ IN, +24VADC and GND respectively;

pins 1-3 of the connector P7 are correspondingly connected with an ADC2_ IN, +24VADC and GND respectively;

pins 1-3 of the connector P8 are correspondingly connected with an ADC3_ IN, +24VADC and GND respectively;

pins 1-3 of the connector P9 are correspondingly connected with an ADC4_ IN, +24VADC and GND respectively;

pins 1-3 of the connector P11 are respectively connected with ADC5_ IN, +24VADC and GND.

The intermediate relay circuit comprises G5NB-1A-E chips U1-U13, wherein a pin 1 of U1 is respectively connected with one ends of 24VDD and a resistor R2 through a resistor R1, the other end of R2 is connected with the anode of a light-emitting diode D1, the cathode of D1 is respectively connected with pins 2 of OUT7 and U1, a pin 3 of U1 is connected with COM1, and a pin 4 of U1 is connected with Y07;

Pins

3, 4 and 5 of KM 1-KM 5 are correspondingly connected with A _ LINE, B _ LINE and C _ LINE respectively, pins 9, 10 and 11 of KM1 are correspondingly connected with C _1, B _1 and A _1 respectively, pins 9, 10 and 11 of KM2 are correspondingly connected with C _10, B _10 and A _10 respectively, pins 9, 10 and 11 of KM3 are correspondingly connected with C _11, B _11 and A _11 respectively, pins 9, 10 and 11 of KM4 are correspondingly connected with C _12, B _12 and A _12 respectively, and pins 9, 10 and 11 of KM5 are correspondingly connected with C _13, B _13 and A _13 respectively;

the SCA end and the SCB end of K1 are correspondingly connected with A _2 and N _2 respectively, the SCA end and the SCB end of K2 are correspondingly connected with A _4 and N _4 respectively, the SCA end and the SCB end of K3 are correspondingly connected with B _5 and N _5 respectively, the SCA end and the SCB end of K4 are correspondingly connected with B _6 and N _6 respectively, the SCA end and the SCB end of K5 are correspondingly connected with C _2 and N _2 respectively, the SCA end and the SCB end of K6 are correspondingly connected with C _3 and N _3 respectively, and the SCA end and the SCB end of K7 are correspondingly connected with F _7 and N _7 respectively. A _ L1NE, B _ LINE and C _ LINE are connected with a three-phase alternating current phase LINE.

the gas outlet of the gas making tank for light hydrocarbon crude oil is connected with the gas inlet of the gas outlet tank through a gas outlet valve, and the gas outlet of the gas outlet tank is connected with an output ball valve through a gas supply valve, an electromagnetic valve and a pressure meter in sequence; the control port of the solenoid valve is connected with an intermediate relay circuit (K5); the pressure detection port of the air outlet tank is connected with the input port (ADC3) of the analog quantity acquisition part; the control port of the air outlet valve is connected with the intermediate relay circuit; the control port of the air supply valve is connected with the intermediate relay circuit;

pressure and temperature sensors of the light hydrocarbon crude oil gas preparation tank are connected with an analog quantity acquisition part (P9); the gas pressure sensor measures the pressure value of the mixed gas at the upper part of the gas making tank;

a differential pressure transmitter of the light hydrocarbon crude oil gas making tank is connected with an analog quantity acquisition part (P7); the differential pressure transmitter can measure the pressure difference between the upper measuring point and the lower measuring point, the liquid level height of the gas making tank can be calculated, the measured value is accurate to a thousandth position, and the liquid level can be controlled more accurately.

High-pressure nitrogen gas output by the air compressor can be directly pumped into the oil storage tank through a pipeline and a valve so as to control oil outlet of the oil storage tank, and is also pumped into the branch cylinder through the oil-water separator during passing so as to control the opening and closing of the pneumatic quick-cut ball valve.

Valves at the oil outlet, the first release port, the nitrogen port, the second release port, the oil discharge port and the manhole are ball valves.

The connecting pipe of delivery port department adopts DN40 connecting pipe, and the connecting pipe of first mouth and the second mouth of dispersing department of dispersing adopts DN50 connecting pipe, and the connecting pipe of nitrogen gas mouth department adopts DN20 connecting pipe, and the connecting pipe of unloading mouth department adopts DN80 connecting pipe, and the connecting pipe of level gauge department adopts DN150 connecting pipe.

The volumes of the oil tank A and the oil tank B are 50m³。

The air inlet valve, the pressure release valve, the air outlet valve, the oil drain valve, the air supply valve and the pressure valve are all pneumatic quick-cut ball valves, air source interfaces of the air inlet valve, the pressure release valve, the air outlet valve, the oil drain valve, the air supply valve and the pressure valve are respectively connected with an outlet of the air distribution cylinder through hoses, and an inlet of the air distribution cylinder is connected with an outlet of the air compressor through the oil-water separator and the gate valve in sequence.

The crude oil storage part consists of two 50m underground³The oil storage tank is buried underground, high-pressure nitrogen is pumped into the tank to facilitate oil discharge, and the working process is as shown in figure 10.

The gas making part consists of gas making tank air, a buffer tank, a gas outlet tank, a Roots blower, an air compressor, a gas distributing cylinder, a plurality of valves and sensors. Light hydrocarbon crude oil gets into the system gas pitcher from the oil storage tank, keep at certain liquid level height, air in the air buffer tank squeezes into the system gas pitcher after the roots's fan pressurizes, form light hydrocarbon mixed gas and maintain the atmospheric pressure in the system gas pitcher with the light hydrocarbon gas mixture on system gas pitcher upper portion, the light hydrocarbon crude oil heating to the uniform temperature in the system gas pitcher of the circulation electric heater unit of system gas pitcher bottom, guarantee that the catalyst in the system gas pitcher reaches best catalytic condition, let the enough gas furnace of gasification rate of light hydrocarbon crude oil last stable burning.

The gas making tank gasifies light hydrocarbon crude oil rapidly under certain conditions, and forms light hydrocarbon air-mixed gas with air pumped into the gas making tank. The sensor in the gas making tank comprises a liquid flow meter at an oil inlet of the gas making tank, a temperature sensor, a differential pressure liquid level sensor and a gas pressure sensor are mounted on the gas making tank body, and the sensors acquire the working state of the gas making tank in real time and transmit the working state to the control system. The gas making tank is provided with an electric stop valve which is arranged at an oil inlet of the gas making tank, and two pneumatic ball valves are respectively arranged between the gas making tank and the air buffer tank to control the air inlet of high-pressure air and between the gas making tank and the air outlet tank to control the air outlet of mixed air gas. The equipment for preparing the light hydrocarbon gas gasifies the light hydrocarbon, then adds air into the gasified light hydrocarbon, and then feeds the gasified light hydrocarbon mixed gas into the boiler for combustion, thereby being efficient, environment-friendly, cheap and practical.

The air buffer tank is a storage tank of compressed air, the compressed air in the air buffer tank is driven by one Roots blower, and the other Roots blower is reserved. And a pneumatic ball valve is arranged between the air buffer tank and the gas making tank and controls the air outlet of the air buffer tank.

The air outlet tank is a filtering and temporary storage tank for light hydrocarbon air-mixed gas, the air outlet tank consists of a tank body and an in-tank filter element, and the tank body is provided with an oil return port at the bottom besides an air inlet and an air outlet. The filter core is installed on the gas outlet, and with give vent to anger between the pipeline seal welding together, the mixed air gas of lighter hydrocarbons enters into the pipeline of giving vent to anger through the filter core, and the oil that the filter core can filter in the mixed air gas of lighter hydrocarbons drips, and these oil can deposit at the tank bottoms, guarantee that the mixed accuse gas that gets into combustion apparatus can not appear deposit oil. The gas inlet and the gas outlet of the gas outlet tank are respectively provided with a starting ball valve for controlling the inlet and the outlet of the light hydrocarbon air-mixed gas, and the oil return port end is also provided with a pneumatic ball valve for periodically returning the oil in the gas storage tank to the gas preparation tank.

The equipment for preparing the light hydrocarbon gas can be applied to heating, refrigerating, power generation and welding, an energy-saving and environment-friendly boiler can be selected in the aspect of heating, and a pressure reducing valve and a gas turbine flowmeter are installed at the air inlet end of the boiler. The gas turbine flowmeter is provided with a gas pressure detection function so as to check the intake air pressure.

The cooking range of the boiler can be divided into 4 groups, 3 cooking ranges are arranged in each group, water enters a heat circulation system of the cooking range to be heated to more than one hundred ℃, and the temperature of output steam can reach about 130 ℃. The environment-friendly energy-saving boiler is provided with one set of intelligent control system, the number of ignition stoves can be controlled according to actual requirements, and resource waste is greatly reduced.

And (3) constant temperature control: 4-20mA output by the pressure and temperature sensor is connected to the circuit board, the current temperature in the gas making tank is obtained by using an AD conversion circuit in U4, and when the temperature is lower than 36 ℃; and starting the circulating pump electric heating contactor to heat the gas making tank. When the temperature rises to 38 ℃, the circulating pump electric heating contactor is closed, and heating is stopped.

Constant liquid level height: light hydrocarbon fuel liquid level system adopts pressure differential changer and air compressor machine as actuating mechanism, when light hydrocarbon fuel's liquid level changed, through the switching of control pressurization valve (squeeze into nitrogen gas in oil tank A and B through the work of control air compressor machine, in carrying light hydrocarbon oil pressure system gas pitcher), makes light hydrocarbon fuel's liquid level stable at the setting value.

The opening and closing of the intake valve is controlled by the tank pressure, and it may be set such that the intake valve is opened when the tank pressure is lower than 36Kpa and closed when the tank pressure exceeds 38 Kpa.

The pressure relief valve prevents the air making tank from being excessively high, and may be configured to open for pressure relief when the pressure in the air making tank exceeds 50Kpa, and close when the pressure in the air making tank is lower than 50 Kpa.

The air outlet valve controls the mixed air light hydrocarbon gas in the gas making tank to enter the gas outlet tank, and when the gas is required to be output, the air outlet valve and the gas supply valve are opened simultaneously.

The oil drain valve controls the accumulated oil in the gas tank to flow back to the gas tank, and the oil drain valve can be set to be opened for 120 seconds per hour.

The electric stop valve DF controls the light hydrocarbon crude oil in the oil storage tank to enter the gas making tank, and the liquid level of the gas making tank can be controlled at 430 mm-450 mm.

The pressure value of the air compressor and the dryer for pressurizing each pneumatic ball valve can be set to be 4 kilograms.

The nitrogen machine can be set to make the pressure of the oil tank be 60-80KPA, and the Roots blower can be set to make the pressure of the gas making tank be 38-40 KPA.

It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the utility model.

Claims

1. The catalytic light hydrocarbon gas control device comprises a microprocessor part, an intermediate relay circuit, a GPRS network, a power input part, a power anti-interference circuit, an analog quantity acquisition part and a drive circuit, the device is characterized in that a control signal output port of a microprocessor part is connected with a control signal input port of an intermediate relay circuit through a driving circuit, a detection signal input port of the microprocessor part is connected with a detection signal output port of an analog quantity acquisition part, an information transmission port of the microprocessor part is connected with an information transmission port of a GPRS network, an electric energy input end of a power supply input part is connected with a power supply anti-jamming circuit, and an electric energy output end of the power supply input part is respectively connected with a power supply port of the microprocessor part, a power supply port of the intermediate relay circuit, a power supply port of the GPRS network, a power supply port of the analog quantity acquisition part and a power supply port of the driving circuit;

the power input part comprises a connector P10, the connector P10 is respectively connected with one end of a fuse F10 and a pin 1 of the connector CH 10, pins 2 and 3 of the connector CH 10 are respectively connected with the connector P10, a ground GND 10 and one end of an inductor L10, the other end of the fuse F10 is connected with an anode of a diode D10, a cathode of the diode D10 is respectively connected with a power supply 24VDD and one end of the inductor L10, the other end of the inductor L10 is respectively connected with one end of a capacitor C10 and a pin 4 of a common mode inductor T10, the other end of the capacitor C10 is respectively connected with a pin Vin + of the inductor L10 and a pin 2 of the T10, the pin 3 of the T10 is respectively connected with a positive pole of the capacitor C10, one end of the WRB2405YMD-6WR 10, the Vin-P10 of the chip U10, the YMB 2405D-6 WR 10 is respectively connected with a pin 1 of the common mode inductor T10, the negative pole of the capacitor C10, the capacitor C2405 YMC 24072 and the positive pole of the capacitor C10, the capacitor C24072 are respectively connected with a positive pole of the capacitor C10, the other end of the inductor L3 is respectively connected with the anode of the capacitor C43, +5V, the anode of the capacitor C46, one end of the capacitor C49 and Vin of the AMS1117-3.3 chip U20, and the Vout end of the AMS1117-3.3 chip U20 is respectively connected with the anode of the capacitor C44, one end of the capacitor C45 and +3.3V of a power supply through an inductor L4;

2. The catalytic light hydrocarbon gas control device according to claim 1, wherein the driving circuit comprises ULN2803 chips U14 and U15, pins 1 to 18 of the ULN2803 chip U15 are respectively connected with ports PC8 to PC13, PD0, PD1, GND, 24VDD and OUT10 to OUT17, and pins 1 to 18 of the ULN2803 chip U14 are respectively connected with ports PC0 to PC7, GND, 24VDD and OUT0 to OUT 7.

3. The catalytic light hydrocarbon gas control device according to claim 1, wherein the power supply anti-interference circuit comprises an inductor L1, one end of the inductor L1 is connected to the power supply 24VDD, the anodes of the capacitors C24-C27 and one ends of the capacitors C28-C29, the other end of the inductor L1 is connected to the anode of the capacitor C30, one end of the capacitor C31 and the power supply +24VADC, the cathodes of the capacitors C24-C27, the other ends of the capacitors C28-C29, the cathode of the capacitor C30 and the other end of the capacitor C31 are connected to GND.

4. The catalytic light hydrocarbon gas control device according to claim 1, wherein the analog quantity acquisition part comprises a resistor R41, a port ADC0_ IN is connected to a terminal of the resistor R41, the other terminal of the resistor R41 is respectively connected to a cathode of a voltage regulator tube Z1, one terminal of a resistor R45 and one terminal of a resistor R43, an anode of the voltage regulator tube Z1 is respectively connected to ground, the other terminal of the resistor R45 and one terminal of a capacitor C37, and the other terminal of the capacitor C37 is respectively connected to the port ADC0 and the other terminal of the resistor R43;