WO2019128536A1

WO2019128536A1 - Controller of methanol heater

Info

Publication number: WO2019128536A1
Application number: PCT/CN2018/116300
Authority: WO
Inventors: 臧志成; 殷玉开; 尹海峰; 单以海; 李云峰
Original assignee: 凯龙高科技股份有限公司
Priority date: 2017-12-29
Filing date: 2018-11-20
Publication date: 2019-07-04
Also published as: CN108170183A; CN108170183B

Abstract

A controller (100) of a methanol heater, comprising: a self-detection device (101) configured to detect the state of components when the methanol heater is turned on; a fault device (102) which is in communication connection with the self-detection device (101); a component key parameter monitoring device (103) which is in communication connection with the self-detection device (101) and the fault device (102); and an air intake adjusting device (104) which is in communication connection with the component key parameter monitoring device (103), the air intake adjusting device (104) being configured to adjust the fan rotation speed in real time according to different working conditions when the methanol heater operates normally, maintaining a predetermined air intake.

Description

Methanol heater controller

The present application claims priority to Chinese Patent Application Serial No. No. No. No. No. No. No. No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No

Technical field

The present disclosure relates to the field of methanol heater technology, for example, to a controller for a methanol heater.

Background technique

In the related art, the controller control scheme of the fuel heater and the gas heater is simple, the types of collected data are small, and the key parameters such as the collected current, voltage and water temperature are not accurate, and the air intake amount cannot be adjusted according to the working condition, and the fault cannot be timely. Given the fault code, the fault location is not accurate, and the maintenance is time-consuming and labor-intensive, which can not meet the market requirements for heater quality. Therefore, the controller control scheme of both the fuel heater and the gas heater in the related art is not applicable to the control for the methanol heater.

Summary of the invention

The present disclosure provides a controller for a methanol heater that solves the problem that the controller control scheme for both the fuel heater and the gas heater is not suitable for methanol heater control.

A controller for a methanol heater, comprising:

a self-checking device configured to detect a state of the component when the methanol heater is turned on, and determine whether the component is faulty, and if there is a fault, stop the ignition; wherein the component includes at least one of the following Items: power supply, water pump, fan, water temperature sensor, overheating sensor and methanol pump;

The fault device is communicatively connected with the self-test device, and the fault device is set to control the indicator light of the faulty position to light up and send a fault code through the controller area network CAN communication, and if there is no fault, control the methanol heater to enter the combustion stage;

a component key parameter monitoring device is communicably connected with the self-checking device and the fault device, and the component key parameter monitoring device is configured to monitor at least one of the following in real time when the methanol heater is working normally: a power supply voltage, a pump current , fan current, methanol pump current, water temperature, the attitude of the methanol heater and whether the whole machine collides, and when any of the above conditions abnormal, immediately turn off the methanol pump to stop the combustion of the methanol pump And reporting the fault through the faulty device; and

The air volume adjusting device is communicably connected with the component key parameter monitoring device, and the air inlet adjusting device is configured to adjust the fan speed in real time according to different working conditions when the methanol heater is working normally, and maintain the set air inlet amount.

DRAWINGS

1 is a block diagram showing the structure of a controller of a methanol heater according to an embodiment;

2 is a simplified operational flow diagram of a controller for a methanol heater provided by an embodiment.

Detailed ways

Referring to FIG. 1 and FIG. 2, the controller 100 of the methanol heater in an embodiment includes a self-test device 101, a fault device 102, a component key parameter monitoring device 103, and an air intake amount adjusting device 104.

The self-test device 101 is configured to detect a state of at least one of a component including a power source, a water pump, a fan, a water temperature sensor, a superheat sensor, and a methanol pump when the methanol heater is turned on, and determine whether the component is faulty, If there is a fault, the ignition is stopped; the faulty device 102 is communicably connected to the self-test device, and the faulty device 102 is set to control the indicator light corresponding to the fault point to light up and send a fault code through the controller area network (CAN) communication. If there is no fault, it proves that all components are in normal condition and enter the combustion phase.

In one embodiment, the self-test device 101 is configured to detect the status of components including a power source, a water pump, a fan, a water temperature sensor, and a superheat sensor when the methanol heater is turned on.

The component key parameter monitoring device 103 is communicatively coupled to the self-test device and the fault device, and the component key parameter monitoring device 103 is configured to monitor, in real time, a power supply voltage, a pump current, a fan current, and the like when the methanol heater is working normally. At least one of the methanol pump current, the water temperature, the attitude of the methanol heater, and whether the whole machine collides with the outside world, and when any of the above conditions is abnormal, immediately close the methanol pump to stop the combustion of the methanol pump And reporting the fault through the faulty device 102; in an embodiment, the water temperature monitoring of the component key parameter monitoring device 103 specifically includes: determining whether the water temperature reaches a preset upper limit of the water temperature control, and if not, issuing a flameout command, if not, No action; judge whether the water temperature reaches the preset lower limit of water temperature control, if it is reached, the ignition command is issued, and if it is not reached, there is no action. In the software design process, the design idea of the state machine is adopted to improve the system response. For the vehicle electromagnetic environment, the software algorithms for key parameters such as current, voltage and water temperature are updated to ensure that the values collected each time are accurate and reliable.

In an embodiment, the component key parameter monitoring device 103 is configured to monitor the power voltage, the pump current, the fan current, the methanol pump current, the water temperature, the overall attitude, and the methanol in real time when the methanol heater is working normally. Whether the heater collides with the outside world.

The air intake amount adjusting device 104 is communicably connected to the component key parameter monitoring device, and the air inlet amount adjusting device 104 is configured to adjust the fan speed in real time according to different working conditions when the methanol heater is working normally, and maintain the set air inlet amount.

In one embodiment, the controller 100 of the methanol heater further includes an emergency device 105; the emergency device 105 is configured to turn off the methanol pump by a control signal to ensure safety in the event of any user-set emergency. reliable. The controller 100 of the methanol heater further includes a dry burning identification device 106; the dry burning identification device 106 is in communication with the component key parameter monitoring device, and the dry burning identification device 106 is configured to It is recognized whether the methanol heater is in a dry state according to the working condition of the methanol heater.

The controller provided in this embodiment enables the first heating success rate of the methanol heater to be higher than that of the fuel heater; and can accurately collect the power supply voltage, the pump current, the fan current, the methanol pump current, the water temperature, and the attitude of the methanol heater and the Whether the whole is in collision with the outside world and other parameter data, so that no error state occurs in continuous operation; the fan speed can be adjusted in real time according to different working conditions, and the optimal air intake amount can be maintained, and the air volume and fuel flow can be controlled. Fuel combustion is more sufficient, reducing pollutant emissions, improving combustion efficiency, saving users cost; in the event of a fault, the indicator light corresponding to the control fault point lights up and sends a fault code through CAN communication to achieve accurate fault location and response time Shorter, more timely protection, easy maintenance and maintenance; in case of emergency, the methanol pump is turned off by sending a control signal to ensure safety and reliability.

Implementing all of the controls in the above embodiments may be accomplished by a computer program instructing related hardware, the program being storable in a computer readable storage medium, which, when executed, may include one of the methods described above The flow of the embodiment. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

Claims

A controller for a methanol heater comprising:

a self-checking device configured to detect a state of a component of the methanol heater when the methanol heater is turned on, and determine whether the component has a fault, and if there is a fault, stop the ignition; wherein The components include at least one of the following: a power source, a water pump, a fan, a water temperature sensor, a methanol pump, and a superheat sensor;

a fault device, communicably connected to the self-test device, the fault device is configured to control an indicator corresponding to the location where the fault exists to light up and issue a fault code through the controller area network CAN communication, and if there is no fault, control the The methanol heater enters the combustion stage;

a component key parameter monitoring device communicably connected to the self-test device and the fault device, wherein the component key parameter monitoring device is configured to monitor at least one of the following in real time when the methanol heater is working normally: a power supply voltage, Pump current, fan current, methanol pump current, water temperature, attitude of the whole machine, and whether the methanol heater collides with the outside world, and when an abnormality occurs in any of the above conditions, the methanol pump is immediately turned off to make the methanol Stop burning and report the fault through the faulty device;

The air volume adjusting device is communicably connected with the component key parameter monitoring device, and the air inlet adjusting device is configured to adjust the speed of the fan in real time according to different working conditions when the methanol heater is working normally, and maintain the set Air intake.
A controller for a methanol heater according to claim 1, wherein said component includes said power source, said water pump, said fan, said water temperature sensor, and said overheat sensor.
A controller for a methanol heater according to claim 1 or 2, wherein said component key parameter monitoring means is arranged to monitor said power source voltage, said pump current, and said real time when said methanol heater is operating normally The fan current, the methanol pump current, the water temperature, the attitude of the whole machine, and whether the methanol heater collides with the outside.
A controller for a methanol heater according to claim 1, further comprising an emergency device configured to be in communication with said component critical parameter monitoring device; said emergency device being configured to present a set emergency The methanol pump is turned off by a control signal.
A controller for a methanol heater according to claim 1, further comprising: a dry burning identification device communicably connected to said component key parameter monitoring device; said dry burning identification device being arranged to be based on said methanol The overall operating condition of the heater identifies whether the methanol heater is in a dry state.
The controller for a methanol heater according to any one of claims 1 to 5, wherein the component key parameter monitoring device is further configured to determine whether the water temperature reaches a preset upper limit of the water temperature control when the water temperature is monitored, When it is reached, it will issue a flameout command. If it is not reached, it will have no action; and it will judge whether the water temperature reaches the preset lower limit of water temperature control. If it is reached, it will issue an ignition command. If it is not reached, it will not operate.