Combustion engine system matched with RTO furnace

Abstract

According to the combustion engine system matched with the RTO furnace, when the combustion furnace needs to be closed, the control mechanism controls the combustion-supporting air cut-off butterfly valve, the fire guiding ball valve and the main fire ball valve to be closed, meanwhile, the compressed air electromagnetic valve is opened, external compressed air is blown into a hearth, high-temperature air backflow of the hearth is avoided, and the service life of the hearth is prolonged. Compressed air with small air volume is used for cooling and protecting the burner of the combustion engine, the burner of the combustion engine is prevented from being damaged by high temperature, and meanwhile it is avoided that a large amount of fresh air is blown in to reduce the temperature and cause temperature deviation of a heat accumulator. And the flame detection electromagnetic valve can prevent high-temperature air in the hearth from high-temperature grilling on the flame detector through a pipeline on the flame detector, so that the flame detector is protected. Meanwhile, the safety performance of the burner system matched with the RTO furnace can be improved through the fuel gas high-pressure alarm switch, the fuel gas low-pressure alarm switch, the fuel gas inner leakage alarm switch and the combustion-supporting air pressure alarm switch, and the working stability of the burner system matched with the RTO furnace is improved.

Description

Technical Field

[0001] The utility model relates to the field of RTO furnaces, in particular to a burner system adapted to RTO furnaces. Background Art

[0002] Regenerative thermal incinerator is also called: Regenerative Thermal Oxidizer, English name is "Regenerative Thermal Oxidizer", referred to as "RTO". If the organic matter contains other elements such as halogen, the oxidation products also include hydrogen halides. The waste gas is first heated to a temperature close to the thermal oxidation temperature by the regenerator, and then enters the combustion chamber for thermal oxidation. The temperature of the oxidized gas increases, and the organic matter is basically converted into carbon dioxide and water. The purified gas passes through another regenerator, the temperature drops, and it can be discharged after meeting the emission standards. Different regenerators are converted over time through switching valves or rotating devices, and absorb and release heat respectively. The principle of the regenerative thermal incinerator is to heat the organic waste gas to above 760 degrees Celsius, so that the VOC in the waste gas is oxidized and decomposed into carbon dioxide and water. The high-temperature gas generated by oxidation flows through a special ceramic regenerator, which heats up the ceramic body and "storages heat". This "heat storage" is used to preheat the organic waste gas that enters later. Thereby saving fuel consumption for heating the waste gas.

[0003] However, the traditional regenerative thermal oxidation furnace burner system, such as the technical solution disclosed in the patent with application number CN202111088781.0 and invention name "An Intelligent RTO Organic Waste Gas Regenerative Thermal Oxidation Furnace System", does not completely cool down the furnace during shutdown in order to reduce energy consumption, so that the heat is absorbed by the heat storage body. However, such operation will cause other components in the burner to be damaged under long-term high temperature. Utility Model Content

[0004] Based on this, it is necessary to provide a burner system suitable for RTO furnaces to address the technical problem that in order to reduce energy consumption, the traditional regenerative thermal oxidation furnace burner system does not completely cool down the furnace during shutdown, so that the heat is absorbed by the heat storage body, but such operation will cause other components in the burner to be damaged under long-term high temperature.

[0005] A burner system adapted to an RTO furnace, the burner system adapted to an RTO furnace comprising: a burner mechanism, a gas intake mechanism, an ignition mechanism, a combustion-supporting mechanism and a temperature-reducing mechanism;

[0006] The burner mechanism comprises a burner of a burner machine, a flame detector and a high-voltage igniter; the flame detector is arranged at the burner of the burner machine for detecting the flame; the high-voltage igniter is arranged at the burner of the burner machine for ignition;

[0007] The gas intake mechanism comprises a gas receiving pipe, a gas control pipe and a gas intake pipe; the first output end of the gas receiving pipe is connected to the input end of the gas control pipe, and the output end of the gas control pipe is connected to the first input end of the gas intake pipe; the output end of the gas intake pipe is connected to the gas intake end of the burner of the burner; the input end of the gas receiving pipe is provided with a gas receiving main ball valve, and the gas receiving pipe is provided with a gas filter; the gas control pipe is provided with a main fire pressure reducing valve, a gas low pressure alarm switch, a first main fire solenoid valve, a pressure relief valve, a gas high pressure alarm switch and a main fire ball valve in sequence from the input end to the output end;

[0008] The ignition mechanism comprises a gas ignition pipe, the input end of the gas ignition pipe is connected to the second output end of the gas receiving pipe, and the output end of the gas ignition pipe is connected to the second input end of the gas intake pipe; the gas ignition pipe is provided with an intake local pressure gauge, a pilot fire pressure reducing valve, a pilot fire local pressure gauge, a first pilot fire solenoid valve and a pilot fire ball valve in sequence from the input end to the output end;

[0009] The combustion-supporting mechanism comprises a combustion-supporting air inlet pipe and a combustion-supporting air outlet pipe, wherein the output end of the combustion-supporting air inlet pipe is connected to the first input end of the combustion-supporting air outlet pipe; the output end of the combustion-supporting air outlet pipe is connected to the combustion-supporting air inlet end of the burner of the burner; the combustion-supporting air inlet pipe is sequentially provided with a combustion-supporting air fan, a combustion-supporting air pressure switch, a combustion-supporting air local pressure gauge, a combustion-supporting air cut-off butterfly valve and a combustion-supporting air proportional valve from the input end to the output end;

[0010] The cooling mechanism comprises a cooling pipe, an input end of the cooling pipe is provided with a compressed air solenoid valve, and an output end of the cooling pipe is connected to the second input end of the combustion-supporting air outlet pipe.

[0011] In one of the embodiments, the burner mechanism further includes a fire detection solenoid valve, and the fire detection solenoid valve is arranged on a pipeline connecting the flame detector and the furnace.

[0012] In one of the embodiments, a second main fire solenoid valve is further provided on the gas control pipe, and the second main fire solenoid valve is provided between the pressure relief valve and the gas high pressure alarm switch.

[0013] In one of the embodiments, a main fire local pressure gauge is also provided on the gas control pipe, and the main fire local pressure gauge is arranged between the main fire pressure reducing valve and the gas low pressure alarm switch.

[0014] In one of the embodiments, the gas control pipe is further provided with an internal leakage alarm pressure switch, and the internal leakage alarm pressure switch is arranged between the first main fire solenoid valve and the pressure relief valve.

[0015] In one of the embodiments, a gas proportional valve is further provided on the gas control pipe, and the gas proportional valve is provided between the gas high pressure alarm switch and the main fire ball valve.

[0016] In one of the embodiments, fire retardant paint is provided on the gas connection pipe.

[0017] In one of the embodiments, a manual regulating valve for combustion-supporting air is further provided on the combustion-supporting air inlet pipe, and the manual regulating valve for combustion-supporting air is provided between the combustion-supporting air on-site pressure gauge and the combustion-supporting air cut-off butterfly valve.

[0018] In one of the embodiments, fire retardant paint is provided on the gas control pipe.

[0019] In one embodiment, the gas ignition pipe is further provided with a second pilot fire solenoid valve, which is arranged between the pilot fire ball valve and the first pilot fire solenoid valve.

[0020] During the operation of the burner system adapted to the RTO furnace, the external control mechanism controls the coordinated operation of the various electrical appliances of the burner system adapted to the RTO furnace. The gas enters the gas inlet end of the burner nozzle of the burner through the gas connecting pipe, the gas pilot pipe and the gas inlet pipe. The high-pressure igniter performs the ignition operation, and the flame detector detects the flame. The control mechanism controls the gas pilot pipe to close, so that the gas enters the gas inlet end of the burner nozzle of the burner through the gas connecting pipe, the gas control pipe and the gas inlet pipe. The high-pressure igniter performs the ignition operation. At the same time, the control mechanism controls the operation of the combustion-supporting fan, so that the combustion-supporting fan inputs combustion-supporting air to the combustion-supporting air inlet end of the burner nozzle of the burner through the combustion-supporting air inlet pipe and the combustion-supporting air outlet pipe. When the combustion furnace needs to be shut down, the control mechanism controls the combustion air cut-off butterfly valve, the pilot fire ball valve and the main fire ball valve to close, and opens the compressed air solenoid valve at the same time, so that the external compressed air is blown into the furnace to avoid the high-temperature air backflow in the furnace, and the compressed air with a small air volume is used to cool and protect the burner of the burner to avoid the burner of the burner being damaged by high temperature, and at the same time avoid blowing in a large amount of new air to reduce the temperature and cause the temperature of the heat storage body to shift. The fire detection solenoid valve can prevent the high-temperature air in the furnace from burning the flame detector at high temperature through the pipe on the flame detector, and play a role in protecting the flame detector. At the same time, the gas high-pressure alarm switch, the gas low-pressure alarm switch, the gas internal leakage alarm switch, and the combustion air pressure alarm switch can increase the safety performance of the burner system adapted to the RTO furnace, and increase the working stability of the burner system adapted to the RTO furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of a burner system adapted for an RTO furnace in one embodiment. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth so as to fully understand the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below. In the description of the utility model, it is necessary to understand that the orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or position relationship shown in the accompanying drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the utility model.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0027] See also Figure 1 The utility model provides a burner system 10 adapted to an RTO furnace, and the burner system 10 adapted to an RTO furnace includes: a burner mechanism 100, a gas intake mechanism 200, an ignition mechanism 300, a combustion-supporting mechanism 400 and a cooling mechanism 500.

[0028] The burner mechanism 100 includes a burner 1, a flame detector 3 and a high-voltage igniter 4. The flame detector 3 is arranged at the burner 1 to detect the flame in the furnace. The high-voltage igniter 4 is arranged at the burner 1 to ignite. In this embodiment, the burner mechanism 100 also includes a fire detection solenoid valve 2, and the fire detection solenoid valve 2 is arranged on the pipeline connecting the flame detector 3 and the furnace. When the combustion furnace is closed, the fire detection solenoid valve 2 can prevent the high-temperature air in the furnace from passing through the pipeline on the flame detector 3 to heat the flame detector 3, thereby protecting the flame detector 3.

[0029] The gas intake mechanism 200 includes a gas receiving pipe 210, a gas control pipe 220 and a gas intake pipe 230. The first output end of the gas receiving pipe 210 is connected to the input end of the gas control pipe 220, and the output end of the gas control pipe 220 is connected to the first input end of the gas intake pipe 230. In this embodiment, a fire retardant paint is provided on the gas receiving pipe 210. The output end of the gas intake pipe 230 is connected to the gas intake end of the burner 1 of the burner. The input end of the gas receiving pipe 210 is provided with a gas receiving main ball valve 5, and the gas receiving pipe 210 is provided with a gas filter 6. In this embodiment, a fire retardant paint is provided on the gas control pipe 220. The gas control pipe 220 is provided with a main fire pressure reducing valve 7, a gas low pressure alarm switch 9, a first main fire solenoid valve 10, a pressure relief valve 13, a gas high pressure alarm switch 14 and a main fire ball valve 16 in sequence from the input end to the output end. In this embodiment, the gas control pipe 220 is also provided with a second main fire solenoid valve 11, which is arranged between the pressure relief valve 13 and the gas high pressure alarm switch 14. The second main fire solenoid valve 11 further increases the working stability and safety of the gas intake mechanism 200. In particular, the gas control pipe 220 is also provided with a main fire local pressure gauge 8, which is arranged between the main fire pressure reducing valve 7 and the gas low pressure alarm switch 9. The main fire local pressure gauge 8 increases the safety of the gas intake mechanism 200. In this embodiment, the gas control pipe 220 is also provided with an internal leakage alarm pressure switch 12, which is arranged between the first main fire solenoid valve 10 and the pressure relief valve 13. The internal leakage alarm pressure switch 12 increases the safety of the gas intake mechanism 200. Further, the gas control pipe 220 is also provided with a gas proportional valve 15, which is arranged between the gas high pressure alarm switch 14 and the main fire ball valve 16. The gas proportional valve 15 increases the safety of the gas intake mechanism 200 .

[0030] The ignition mechanism 300 includes a gas ignition pipe 310, the input end of the gas ignition pipe 310 is connected to the second output end of the gas receiving pipe 210, and the output end of the gas ignition pipe 310 is connected to the second input end of the gas intake pipe 230. The gas ignition pipe 310 is provided with an intake local pressure gauge 17, a pilot fire pressure reducing valve 18, a pilot fire local pressure gauge 19, a first pilot fire solenoid valve 20, and a pilot fire ball valve 22 in sequence from the input end to the output end. In this embodiment, the gas ignition pipe 310 is also provided with a second pilot fire solenoid valve 21, which is arranged between the pilot fire ball valve 22 and the first pilot fire solenoid valve 20. The second pilot fire solenoid valve 21 increases the working stability of the ignition mechanism 300.

[0031] The combustion-supporting mechanism 400 includes a combustion-supporting air inlet pipe 410 and a combustion-supporting air outlet pipe 420, and the output end of the combustion-supporting air inlet pipe 410 is connected to the first input end of the combustion-supporting air outlet pipe 420. The output end of the combustion-supporting air outlet pipe 420 is connected to the combustion-supporting air inlet end of the burner 1 of the combustion machine. The combustion-supporting air inlet pipe 410 is sequentially provided with a combustion-supporting air fan 23, a combustion-supporting air pressure switch 24, a combustion-supporting air local pressure gauge 25, a combustion-supporting air cut-off butterfly valve 27, and a combustion-supporting air proportional valve 28 from near the input end to near the output end. In this embodiment, a combustion-supporting air manual regulating valve 26 is also provided on the combustion-supporting air inlet pipe 410, and the combustion-supporting air manual regulating valve 26 is arranged between the combustion-supporting air local pressure gauge 25 and the combustion-supporting air cut-off butterfly valve 27. The combustion-supporting air manual regulating valve 26 increases the working stability of the combustion-supporting mechanism 400.

[0032] The cooling mechanism 500 includes a cooling tube 510, the input end of which is provided with a compressed air solenoid valve 29, and the output end of the cooling tube 510 is connected to the second input end of the combustion-supporting air outlet pipe 420. The input end of the cooling tube 510 is used to communicate with an external compressed air source.

[0033] During the operation of the burner system 10 adapted to the RTO furnace, the external control mechanism controls the coordinated operation of the various electrical appliances of the burner system 10 adapted to the RTO furnace. So that the gas enters the gas inlet end of the burner nozzle 1 through the gas connecting pipe 210, the gas ignition pipe 310 and the gas inlet pipe 230. The high-pressure igniter 4 performs the ignition operation, and the flame detector 3 detects the flame. The external control mechanism controls the gas ignition pipe 310 to close, so that the gas enters the gas inlet end of the burner nozzle 1 through the gas connecting pipe 210, the gas control pipe 220 and the gas inlet pipe 230. The high-pressure igniter 4 performs the ignition operation. At the same time, the control mechanism controls the operation of the combustion-supporting fan 23, so that the combustion-supporting fan 23 inputs combustion-supporting air to the combustion-supporting inlet end of the burner nozzle 1 through the combustion-supporting air inlet pipe 410 and the combustion-supporting air outlet pipe 420. When the combustion furnace needs to be closed, the control mechanism controls the combustion air cut-off butterfly valve 27, the pilot fire ball valve 22 and the main fire ball valve 16 to close, and at the same time opens the compressed air solenoid valve 29, so that the external compressed air is blown into the furnace to avoid the high-temperature air backflow in the furnace, and the compressed air with a small air volume is used to cool and protect the burner 1 of the burner, so as to avoid the burner 1 being damaged by high temperature, and at the same time avoid blowing in a large amount of new air to reduce the temperature and cause the temperature of the heat storage body to shift. The fire detection solenoid valve 2 can prevent the high-temperature air in the furnace from roasting the flame detector 3 at high temperature through the pipe on the flame detector 3, and plays a role in protecting the flame detector 3. At the same time, the gas high-pressure alarm switch 14, the gas low-pressure alarm switch 9, the gas internal leakage alarm switch, and the combustion air pressure alarm switch can increase the safety performance of the burner system 10 adapted to the RTO furnace, and increase the working stability of the burner system 10 adapted to the RTO furnace.

[0034] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A burner system adapted to an RTO furnace, characterized in that: include: Burner mechanism, gas intake mechanism, ignition mechanism, combustion-supporting mechanism and cooling mechanism; The burner mechanism comprises a burner of a burner machine, a flame detector and a high-voltage igniter; the flame detector is arranged at the burner of the burner machine for detecting the flame; the high-voltage igniter is arranged at the burner of the burner machine for ignition; The gas intake mechanism comprises a gas receiving pipe, a gas control pipe and a gas intake pipe; the first output end of the gas receiving pipe is connected to the input end of the gas control pipe, and the output end of the gas control pipe is connected to the first input end of the gas intake pipe; the output end of the gas intake pipe is connected to the gas intake end of the burner of the burner; the input end of the gas receiving pipe is provided with a gas receiving main ball valve, and the gas receiving pipe is provided with a gas filter; the gas control pipe is provided with a main fire pressure reducing valve, a gas low pressure alarm switch, a first main fire solenoid valve, a pressure relief valve, a gas high pressure alarm switch and a main fire ball valve in sequence from the input end to the output end; The ignition mechanism comprises a gas ignition pipe, the input end of the gas ignition pipe is connected to the second output end of the gas receiving pipe, and the output end of the gas ignition pipe is connected to the second input end of the gas intake pipe; the gas ignition pipe is provided with an intake local pressure gauge, a pilot fire pressure reducing valve, a pilot fire local pressure gauge, a first pilot fire solenoid valve and a pilot fire ball valve in sequence from the input end to the output end; The combustion-supporting mechanism comprises a combustion-supporting air inlet pipe and a combustion-supporting air outlet pipe, wherein the output end of the combustion-supporting air inlet pipe is connected to the first input end of the combustion-supporting air outlet pipe; the output end of the combustion-supporting air outlet pipe is connected to the combustion-supporting air inlet end of the burner of the burner; the combustion-supporting air inlet pipe is sequentially provided with a combustion-supporting air fan, a combustion-supporting air pressure switch, a combustion-supporting air local pressure gauge, a combustion-supporting air cut-off butterfly valve and a combustion-supporting air proportional valve from the input end to the output end; The cooling mechanism comprises a cooling pipe, an input end of the cooling pipe is provided with a compressed air solenoid valve, and an output end of the cooling pipe is connected to the second input end of the combustion-supporting air outlet pipe.

2. The burner system adapted to the RTO furnace according to claim 1, characterized in that: The burner mechanism also includes a fire detection solenoid valve, and the fire detection solenoid valve is arranged on a pipeline connecting the flame detector and the furnace.

3. The burner system adapted to the RTO furnace according to claim 1, characterized in that: The gas control pipe is also provided with a second main fire solenoid valve, which is arranged between the pressure relief valve and the gas high pressure alarm switch.

4. The burner system adapted to the RTO furnace according to claim 3, characterized in that: The gas control pipe is also provided with a main fire local pressure gauge, and the main fire local pressure gauge is arranged between the main fire pressure reducing valve and the gas low pressure alarm switch.

5. The burner system adapted to the RTO furnace according to claim 4, characterized in that: The gas control pipe is also provided with an internal leakage alarm pressure switch, and the internal leakage alarm pressure switch is arranged between the first main fire solenoid valve and the pressure relief valve.

6. The burner system adapted to the RTO furnace according to claim 5, characterized in that: The gas control pipe is also provided with a gas proportional valve, and the gas proportional valve is arranged between the gas high pressure alarm switch and the main fire ball valve.

7. The burner system adapted to the RTO furnace according to claim 6, characterized in that: The gas connection pipe is provided with fireproof paint.

8. The burner system adapted to the RTO furnace according to claim 1, characterized in that: The combustion-supporting air inlet pipe is also provided with a combustion-supporting air manual regulating valve, and the combustion-supporting air manual regulating valve is arranged between the combustion-supporting air on-site pressure gauge and the combustion-supporting air cut-off butterfly valve.

9. The burner system adapted to the RTO furnace according to claim 1, characterized in that: The gas control pipe is provided with fire retardant paint.

10. The burner system adapted to the RTO furnace according to claim 1, characterized in that: The gas ignition pipe is also provided with a second pilot fire solenoid valve, and the second pilot fire solenoid valve is arranged between the pilot fire ball valve and the first pilot fire solenoid valve.

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