CN201159096Y - heating equipment - Google Patents

Abstract

The utility model provides a heating device comprises a heater, a backpressure perception ware, a temperature perception ware, a fuel cell, an air compressor, and a computer controller, installs between diesel engine's blast pipe and exhaust fume clarifier, and the exhaust fume clarifier is purified in the self-burning heating, can maintain the function of exhaust fume clarifier effective filtration waste gas to it can be smooth and easy to maintain diesel engine exhaust gas.

Description

heating equipment

technical field

The utility model provides a heating device, in particular to a smoke exhaust purifier installed at the rear end of the exhaust pipe of a diesel engine, which can be automatically burned, heated and purified by catalytic ignition of a precious metal catalyst, so as to maintain the smoke exhaust purifier. The function of effectively filtering exhaust gas and maintaining the smooth discharge of diesel engine exhaust gas.

Background technique

Exhaust gas emitted by a large amount of diesel engines seriously pollutes the atmosphere, causes the global warming effect, and causes a large number of biological extinctions on the earth. Since the end of the 20th century, it has attracted the attention of educated taxis all over the world. Especially in the automobile industry, various solutions are continuously proposed. Among them, the smoke exhaust purifier installed at the rear end of the exhaust pipe of the diesel engine can effectively filter the exhaust gas emitted by the diesel engine in large quantities, which is more effective. But this kind of smoke exhaust purifier installed at the rear end of the diesel engine exhaust pipe, after a period of use, it is inevitable that carbon deposits in the filter element will cause blockage, which not only affects the effect of filtering the exhaust gas of the diesel engine, but also affects the normal operation of the diesel engine. function.

At present, the automobile industry uses the back pressure sensor of exhaust gas from diesel vehicles to detect the amount of carbon accumulation in the filter element of the exhaust purifier. When the carbon reaches a certain thickness and a predetermined exhaust back pressure is generated, the engine management system will send a signal to increase the engine operating temperature to burn the carbon deposits accumulated on the surface of the filter element of the exhaust purifier without causing blockage later. However, due to the poor environment of the car (such as the major metropolitan areas in Taiwan, China), the vehicle often stops and goes, or the personal car habit (short-distance use or not often on the expressway), driving under frequent idling, the installation Diesel vehicles equipped with smoke exhaust purifiers may not be able to increase the engine operating temperature and burn off the carbon deposits accumulated on the surface of the smoke exhaust purifier filter element, which not only affects the effect of filtering diesel engine exhaust gas, but also affects the normal operation of diesel engines. run. At this time, the only option is to drive the car to the service factory, and the technician will burn off the carbon deposits accumulated on the surface of the filter element of the smoke exhaust purifier, which is not only time-consuming, but also uneconomical and very troublesome. Therefore, how to eliminate the carbon deposition on the surface of the filter element of the exhaust purifier at the rear end of the exhaust pipe of the diesel engine at any time, to maintain the function of the exhaust purifier to effectively filter exhaust gas, and to maintain the smooth discharge of exhaust gas from the diesel engine, is what this utility model explores The goal.

Utility model content

The purpose of this utility model is to provide a heating device to overcome the defects in the known technology.

In order to achieve the above purpose, the heating device provided by the utility model is composed of a heater, a back pressure sensor, a temperature sensor, a fuel system, an air compressor and a computer controller.

The heating device, wherein the heater includes an outer tube, a heating tube and a fuel injector, the heating tube is provided with noble metal catalyst particles, the noble metal catalyst particles are coated with platinum (Platinum, Pt) on the surface of high temperature resistant ceramic particles, Palladium (Pd), rhodium (Rhodium, Rh), ruthenium (Ruthenium, Ru) and other precious metal catalysts, the fuel nozzle is set in the front end of the heating tube, and the outer tube is equipped with a fixing frame to fix the heating tube in the outer tube. The front end of the outer pipe of the heater is connected to the rear end of the exhaust pipe of the diesel engine.

In the said heating device, the feedback signal line of the back pressure sensor is connected to the computer controller, and the back pressure sensor is arranged near the front end of the heater.

The heating device, wherein the feedback signal line of the temperature sensor is connected to the computer controller, and the temperature sensor is arranged near the front end of the smoke exhaust purifier.

The heating device, wherein the fuel system includes a fuel tank, an air intake pipe, an air and fuel mixing pipe and an appropriate amount of fuel, one end of the air intake pipe is connected to the fuel tank, the other end of the air intake pipe is connected to an air compressor, and the air and fuel are mixed One end of the tube is connected to the fuel tank, and the other end of the air-fuel mixing tube is connected to the fuel nozzle of the heater.

Said heating device, wherein the signal line of the computer controller is connected to the air compressor.

The utility model has the following effects:

1) It can automatically burn, heat and purify, so as to maintain the function of the smoke exhaust purifier to effectively filter exhaust gas, and to maintain the smooth discharge of exhaust gas from the diesel engine.

2) There is no need to ignite separately, that is, the fuel mixed with air is automatically ignited to generate a predetermined high temperature, and the smoke exhaust purifier is heated and purified.

3) The noble metal catalyst is used to catalytically ignite the fuel mixed with air, and the smoke exhaust purifier is automatically burned and heated to purify.

Description of drawings

Fig. 1: is the exploded view of the heating device of the embodiment of the utility model.

Fig. 2: is the assembly diagram of the heating device of the embodiment of the present utility model.

Fig. 3: is the sectional view of the heating device of the embodiment of the utility model.

Explanation of main symbols in the accompanying drawings:

1 heating device

10 heater

11 outer tube

111 fixed frame

12 heating tube

121 noble metal catalyst particles

13 fuel nozzle

2 exhaust pipes

20 back pressure sensor

21 Feedback signal line

3 smoke exhaust purifier

30 temperature sensor

31 Feedback signal line

40 fuel system

41 fuel tank

42 intake pipe

43 air and fuel mixing tube

44 Methanol

50 air compressor

60 computer controller

61 signal line

Detailed ways

The utility model is composed of a heater, a back pressure sensor, a temperature sensor, a fuel tank, an air compressor, and a computer controller; wherein the heater consists of an outer tube, a heating tube and a Composed of fuel injectors, the heater, back pressure sensor and temperature sensor are installed between the exhaust pipe of the diesel engine and the exhaust purifier, and the high temperature of the exhaust gas emitted by the diesel engine is used to make the heating pipe of the heater naturally A high-temperature environment is formed, so that the fuel mixed with air sprayed out through the fuel injector of the heater will be catalyzed by the catalyst in the heating tube of the heater immediately, and the fuel mixed with air will be automatically ignited without additional ignition to produce the predetermined High temperature, heating and purifying smoke exhaust purifier, can maintain the function of the smoke exhaust purifier to effectively filter exhaust gas, and maintain the smooth exhaust gas emission of diesel engines.

The following will be described in detail in conjunction with the embodiments and accompanying drawings.

As shown in Figures 1, 2 and 3, the utility model embodiment heating device 1 consists of a heater 10, a back pressure sensor 20, a temperature sensor 30, a fuel system 40, an air compressor 50 and an Composed of a computer controller 60, the heater 10 includes an outer tube 11, a heating tube 12 and a fuel injector 13. The heating tube 12 is provided with a plurality of noble metal catalyst particles 121, and the noble metal catalyst particles 121 are made of high temperature resistant ceramics. The particle surface is coated with platinum (Platinum, Pt), palladium (Palladium, Pd), rhodium (Rhodium, Rh), ruthenium (Ruthenium, Ru) and other precious metal catalysts, and the fuel nozzle 13 is arranged inside the front end of the heating tube 12, and the outer There is a fixing frame 111 inside the tube 11, and the heating tube 12 is fixed in the outer tube 11. The front end of the outer tube 11 of the heater 10 is connected to the rear end of the exhaust pipe 2; the feedback signal line 21 of the back pressure sensor 20 is connected to the computer control device 60, the back pressure sensor 20 is located near the front end of the heater 10; wherein the feedback signal line 31 of the temperature sensor 30 is connected to the computer controller 60, and the temperature sensor 30 is located near the front end of the smoke exhaust purifier 3; wherein the fuel system 40 comprises a fuel tank 41, an air intake pipe 42, an air and fuel mixing pipe 43 and an appropriate amount of methanol 44, one end of the air intake pipe 42 is connected to the fuel tank 41, and the other end of the air intake pipe 42 is connected to the air compressor 50, and the air is mixed with the fuel One end of the tube 43 is connected to the fuel tank 41 , and the other end of the air and fuel mixing tube 43 is connected to the fuel nozzle 13 of the heater 10 ; the signal line 61 of the computer controller 60 is connected to the air compressor 50 .

When the exhaust gas discharged from the exhaust pipe 2 of the diesel engine passes through the gap between the outer pipe 11 of the heater 10 and the fixed frame 111 between the heating pipe 12, it is discharged into the exhaust gas purifier 3 connected to the rear end of the heater 10 for filtering. During the discharge period after being purified into a non-toxic gas, the back pressure sensor 20 located near the front end of the heater 10 detects that the exhaust gas purifier 3 adsorbs and filters the exhaust gas discharged from the exhaust pipe 2, and the surface of the filter element of the smoke exhaust purifier 3 When a considerable thickness of carbon deposits is accumulated and a predetermined back pressure value is generated, this message will be transmitted to the computer controller 60 through the feedback signal line 21, and the computer controller 60 will send a signal to start the air compressor 50 to The air is sent into the fuel tank 41 filled with an appropriate amount of methanol 44 through the air intake pipe 42, and the air and methanol 44 are sent to the fuel nozzle 13 of the heater 10 through the air and fuel mixing pipe 43, and the mixed air is atomized into methanol 44 Spray into the heating tube 12. At this time, the heating tube 12 has been heated to a high temperature of nearly 200 degrees Celsius by the exhaust gas discharged from the exhaust pipe 2. The methanol 44 mixed with the air is sprayed into the heating tube 12, and it is immediately heated by the precious metal catalyst particles. The precious metal catalyst coated on the surface of 121 catalyzes the cracking of methanol 44 to produce hydrogen, and then oxidizes the catalyst to generate high-temperature heat energy above 400 degrees Celsius, which is ejected from the rear end of the heating pipe 12, and first burns and purifies the exhaust pipe 2, and then heats it The gap between the outer pipe 11 of the device 10 and the heating pipe 12 is discharged into the back end of the heater 10, and the waste gas that has not yet entered the exhaust gas purifier 3 enters the exhaust gas purifier together with the purified high-temperature exhaust gas. In the device 3, the carbon deposit accumulated on the surface of the filter element of the smoke exhaust purifier is purified by high temperature combustion.

During this period, the temperature sensor 30 located near the front end of the exhaust gas purifier 3 detects the high temperature emitted from the rear end of the heating pipe 12 and enters the exhaust gas exhaust gas purifier 3 together with the purified high-temperature exhaust gas. When heat energy exceeds the default value of 450 degrees Celsius, this message will be transmitted to the computer controller 60 via the feedback signal line 31, and the computer controller 60 will send a signal to stop the air compressor 50 from running, or adjust (reduce) the air The compressor 50 sends the air into the fuel tank 41 through the intake pipe 42, and sends the reduced air and methanol 44 to the fuel injector 13 of the heater 10 through the air and fuel mixing pipe 43, so that the reduced mixed air is The misty methanol 44 is sprayed into the heating pipe 12, so that the high-temperature heat energy entering the smoke exhaust purifier 3 is maintained at a default value of 450 degrees Celsius, and continues to burn and purify the carbon deposits accumulated on the surface of the smoke exhaust purifier filter element.

In the embodiment of the utility model, the heating device 1 continuously burns and purifies the carbon deposit accumulated on the surface of the filter element of the smoke exhaust purifier, and the back pressure sensor 20 located near the front end of the heater 10 detects that the smoke exhaust purifier 3 absorbs and filters the exhaust gas. When the exhaust gas discharged by the pipe 2 produces a back pressure value lower than the predetermined back pressure value, the message will be transmitted to the computer controller 60 through the feedback signal line 21, and the computer controller 60 will send a signal to stop the air flow. Operation of the compressor 50.

In this way, the heating device 1 of the embodiment of the utility model automatically heats, burns and purifies the smoke exhaust purifier to maintain the exhaust gas purifier's function of effectively filtering exhaust gas, and to maintain the diesel engine's smooth exhaust gas function.

The above mentioned are only some preferred specific embodiments of the utility model, and are not limiting the utility model. Various deformations, modifications, and applications can be made within the scope of not departing from the spirit of the utility model. For example, the outer surface of the heater Tubes, heating tubes or fuel nozzles are replaced with various equivalent components, or fuel system fuel-methanol is replaced by other alcohol compounds such as alcohol or isopropanol, or low-sulfur hydrocarbons such as n-hexane (n-llexane), various equivalent fuels such as gasoline or diesel oil, should all be included in the scope of the present utility model.

Claims (6)

1. A heating device, characterized in that it is composed of a heater, a back pressure sensor, a temperature sensor, a fuel system, an air compressor and a computer controller. 2. The heating device according to claim 1, wherein the heater comprises an outer tube, a heating tube and a fuel nozzle, and the heating tube is provided with noble metal catalyst particles, and the noble metal catalyst particles are high temperature resistant ceramic particles Platinum, palladium, rhodium, ruthenium precious metals are coated on the surface, the fuel nozzle is set in the front end of the heating tube, the outer tube is equipped with a fixing frame, the heating tube is fixed in the outer tube, and the front end of the outer tube of the heater is connected to the rear end of the exhaust pipe of the diesel engine. 3. The heating device according to claim 1, wherein the feedback signal line of the back pressure sensor is connected to the computer controller, and the back pressure sensor is located near the front end of the heater. 4. The heating device according to claim 1, wherein the feedback signal line of the temperature sensor is connected to the computer controller, and the temperature sensor is located near the front end of the exhaust purifier. 5. The heating device according to claim 1 or 2, wherein the fuel system includes a fuel tank, an air intake pipe, an air and fuel mixing pipe and an appropriate amount of fuel, one end of the air intake pipe is connected to the fuel tank, and the air intake pipe The other end of the air and fuel mixing tube is connected to the air compressor, one end of the air and fuel mixing tube is connected to the fuel tank, and the other end of the air and fuel mixing tube is connected to the fuel nozzle of the heater. 6. The heating device as claimed in claim 1, wherein the signal line of the computer controller is connected to the air compressor.

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