Integrated safety type waste gas incinerator suitable for outdoor

Abstract

The application relates to an integrated safety type waste gas incinerator suitable for outdoor use, which comprises a furnace shell, a sunken hearth, a main heat exchanger, a tail gas cover, a combustion machine, a waste gas fan, a waste gas control valve group and a surrounding area; the sunken hearth, the main heat exchanger and the tail gas cover are sequentially arranged from left to right; the sunken hearth comprises an upper interval and a lower interval; the main heat exchanger comprises a shell side flow channel formed by the gap between the furnace shell and the heat exchange pipe and a tube side flow channel formed in the heat exchange pipe of the main heat exchanger; the gas outlet of the main heat exchanger shell side flow channel and the gas inlet of the main heat exchanger tube side flow channel are respectively communicated with the upper interval; a shell side gas inlet is arranged on the furnace shell; the tail gas cover is communicated with the gas outlet of the main heat exchanger tube side flow channel; and the tail gas outlet of the tail gas cover is communicated with an external chimney. The waste gas incinerator has the advantages of being suitable for being placed outdoors for open use and being safe in the case of sudden power failure in high-temperature operation.

Description

TECHNICAL FIELD

[0001] The present application relates to a waste gas incinerator, in particular to an integrated organic waste gas incinerator with high safety performance suitable for being placed outdoors, belonging to the technical field of environmental protection and the technical field of equipment manufacturing. BACKGROUND

[0002] Since the waste gas incineration equipment involves flammable gas and harmful gas in the use process, many users will place it outdoors based on safety considerations, which can also avoid the heat dissipation of the waste gas incineration equipment shell to cause the indoor temperature to rise. At present, most of the industrial organic waste gas incineration equipment used by enterprises is placed outside the workshop or on the roof of the factory building.

[0003] The equipment placed outdoors will be exposed to sunlight and rain, which will accelerate the aging of the equipment devices, and the erosion of rainwater can easily cause short circuit of the electrical appliances and faults and dangers.

[0004] Previously, some waste gas incineration equipment manufacturers have gathered some sensitive devices in one or more cabinets or boxes and then connected them to the main body of the equipment through pipelines. This method not only affects the appearance of the equipment, but also increases the investment in pipelines, and the non-integrated design greatly increases the workload of on-site installation and connection of the equipment.

[0005] In addition, when the waste gas incinerator suddenly stops running, if there is no standby power, the fan of the incinerator cannot run and dissipate heat, and the high-temperature downward furnace and the high-temperature hot gas of the heat storage material will flow back and transfer heat through the combustion machine and the waste gas inlet. Over time, it is easy to burn the devices on the combustion machine and the waste gas inlet, and even may cause a fire accident. SUMMARY

[0006] The purpose of the present application is to overcome the shortcomings of the prior art and provide an integrated safety type waste gas incinerator suitable for outdoor use, an organic waste gas incinerator suitable for being placed outdoors and used in the open air, which still maintains safety in the case of sudden power failure during high-temperature operation. The incinerator is an integrated design, compact and beautiful in structure, simple and convenient to install on site.

[0007] In order to achieve the above purpose, the technical scheme of the present application is as follows: an integrated safety type waste gas incinerator suitable for outdoor use, characterized by comprising:

[0008] The furnace body shell, the sunken hearth, the main heat exchanger and the tail gas cover; the sunken hearth, the main heat exchanger and the tail gas cover are sequentially arranged from left to right, and the sunken hearth and the main heat exchanger are located in the furnace body shell, the sunken hearth comprises an upper interval and a lower interval, the lower interval is located below the horizontal line at the bottom of the main heat exchanger, the main heat exchanger comprises a shell side flow channel formed by the gap between the furnace body shell and the heat exchange pipe and a tube side flow channel formed in the heat exchange pipe of the main heat exchanger, the gas outlet of the shell side flow channel of the main heat exchanger and the gas inlet of the tube side flow channel of the main heat exchanger are communicated with the upper interval respectively, the shell side gas inlet is arranged on the furnace body shell, the tail gas cover is communicated with the gas outlet of the tube side flow channel of the main heat exchanger, and the tail gas outlet of the tail gas cover is communicated with an external chimney.

[0009] The combustion machine is connected with the combustion control system and the combustion air fan, and the combustion port of the combustion machine is located in the lower interval.

[0010] The exhaust gas fan and the exhaust gas control valve group; the gas outlet of the exhaust gas fan is communicated with the gas inlet of the shell side flow channel of the main heat exchanger through the shell side gas inlet, and the gas inlet of the exhaust gas fan is communicated with the exhaust gas control valve group.

[0011] The enclosed area is arranged in the lower part of the furnace body shell and below the main heat exchanger, and the combustion machine, the combustion control system, the combustion air fan, the exhaust gas control valve group, the exhaust gas fan and the shell side gas inlet are arranged in the enclosed area.

[0012] In the technical solution, the tail gas hot air heat exchanger is installed in the furnace body shell and located between the main heat exchanger and the tail gas cover, so that the gas from the gas outlet of the tube side flow channel of the main heat exchanger enters the tail gas cover through the tail gas hot air heat exchanger, the hot air inlet and the hot air outlet are arranged on the furnace body shell, the gas outlet of the hot air fan is communicated with the gas inlet of the tail gas hot air heat exchanger through the hot air inlet, and the hot air fan is installed in the enclosed area.

[0013] In the technical solution, the water coil heat exchanger is installed at the gas inlet of the tail gas cover.

[0014] In the technical solution, the furnace body shell is a sealed cavity composed of a metal material and internally provided with heat-insulating refractory material.

[0015] In the technical solution, the main heat exchanger is a column tube heat exchanger, and the combustion machine is a gas combustion machine.

[0016] In the technical solution, the combustion machine is connected with the combustion control system and the combustion air fan, the combustion control system is composed of a gas pressure and flow monitoring and control device, and a normally open air valve is arranged on the air outlet pipeline of the combustion air fan.

[0017] In this technical solution, the exhaust gas control valve group includes an exhaust gas switching valve and a normally open fresh air valve.

[0018] In this technical solution, a sealing plate is provided on the furnace shell, and the sealing plate is located on the surface of the furnace shell corresponding to the sunken furnace chamber and the main heat exchanger.

[0019] In this technical solution, the enclosed area is equipped with louvers, an exhaust gas pipe interface, a compressed air interface, a natural gas interface, an electrical junction box, and a hot air outlet. The exhaust gas pipe interface is connected to the air inlet of the exhaust gas control valve group, and the compressed air interface and the natural gas interface are respectively connected to the combustion control system.

[0020] The advantages of this invention compared to the prior art are: an organic waste gas incinerator suitable for outdoor use and maintaining safety even in the event of a sudden power outage during high-temperature operation; the incinerator is an integrated design with a compact and aesthetically pleasing structure, and is simple and convenient to install on site. Attached Figure Description

[0021] Appendix Figure 1 This is a schematic diagram of the internal structure of Example 1;

[0022] Appendix Figure 2 This is a schematic diagram of the external structure of Example 1;

[0023] Appendix Figure 3 This is a schematic diagram of the internal structure of Example 2;

[0024] Appendix Figure 4 This is a schematic diagram of the internal structure of Example 3;

[0025] Appendix Figure 5 These are schematic diagrams of the external structures of Examples 2 and 3. Detailed Implementation

[0026] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] In the description of this invention, the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and are not intended to require the invention to be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the invention. Example

[0028] like Figure 1 and Figure 2The application discloses an integrated safety type waste gas incinerator suitable for outdoor use.

[0029] The furnace body shell 1, the sunken hearth 2, the main heat exchanger 3 and the tail gas cover 4 are sequentially arranged from left to right, and the sunken hearth 2 and the main heat exchanger 3 are located in the furnace body shell 1, the sunken hearth 2 comprises an upper interval 21 and a lower interval 22, the lower interval 22 is located below the horizontal line at the bottom of the main heat exchanger 3, the main heat exchanger 3 comprises a shell side flow channel formed by the gap between the furnace body shell 1 and the heat exchange pipe and a tube side flow channel formed in the heat exchange pipe of the main heat exchanger 3, the gas outlet of the shell side flow channel of the main heat exchanger 3 and the gas inlet of the tube side flow channel of the main heat exchanger 3 are communicated with the upper interval 21 respectively, the shell side gas inlet 1a is arranged on the furnace body shell 1, the tail gas cover 4 is communicated with the gas outlet of the tube side flow channel of the main heat exchanger 3, and the tail gas outlet 41 of the tail gas cover 4 is communicated with an external chimney.

[0030] The combustion machine 6 is connected with the combustion control system 61 and the combustion air fan 62, and the combustion port of the combustion machine 6 is located in the lower interval 22.

[0031] The waste gas fan 71 and the waste gas control valve group 72, the gas outlet of the waste gas fan 71 is communicated with the gas inlet of the shell side flow channel of the main heat exchanger 3 through the shell side gas inlet 1a, and the gas inlet of the waste gas fan 71 is communicated with the waste gas control valve group 72.

[0032] The surrounding area 5 is arranged at the lower part of the furnace body shell 1 and below the main heat exchanger 3, and the combustion machine 6, the combustion control system 61, the combustion air fan 62, the waste gas control valve group 72, the waste gas fan 71 and the shell side gas inlet 1a are all arranged in the surrounding area 5.

[0033] In the embodiment, the furnace body shell 1 is a sealed cavity formed by a metal material and is internally provided with heat insulation refractory material.

[0034] In the embodiment, the main heat exchanger 3 is a column tube type heat exchanger, and the combustion machine 6 is a gas combustion machine.

[0035] In the embodiment, the combustion machine 6 is connected with the combustion control system 61 and the combustion air fan 62 respectively, the combustion control system 61 is composed of gas pressure and flow monitoring and control devices, and a normally open air valve 63 is arranged on the air outlet pipeline of the combustion air fan 62.

[0036] In the embodiment, the waste gas control valve group 72 comprises a waste gas switching valve and a normally open fresh air valve.

[0037] In the embodiment, the furnace shell 1 is provided with a sealing plate 11, which is located on the surface of the furnace shell 1 corresponding to the sunken hearth 2 and the main heat exchanger 3.

[0038] In the embodiment, the enclosure 5 is provided with louvers 51, a waste gas pipe interface 73, a compressed air interface 64, a natural gas interface 65 and an electrical wiring box 66.

[0039] During operation, the waste gas incinerator adopts the sunken hearth 2 design and the design of arranging the shell side gas inlet 1a below the main heat exchanger, which provides conditions for connecting all the internal control devices and pipelines in the enclosure 5, and solves the problem of rain erosion of the external combustion engine, the combustion control system, the external waste gas fan and the waste gas control valve group in the traditional technology.

[0040] The present application has higher safety than the traditional technology in the case of sudden power failure. Because of the sunken hearth 2 design, the combustion engine 6 can be arranged below the entire furnace shell 1. When the combustion-supporting fan cannot supply air in the case of sudden power failure, the normally open air valve 63 on the combustion-supporting fan 62 pipeline will automatically open. The sunken hearth and the main heat exchanger 2 at the upper position and the tail gas outlet have a certain vertical distance from the normally open air valve 63. By utilizing the effect of hot air rising, fresh air will enter the lower interval 22 of the sunken hearth 2 from the burner of the combustion engine 6 through the open normally open air valve 63 from the air inlet of the combustion-supporting fan 62. The fresh air can cool the burner when entering, which avoids the heat of the sunken hearth 2 from being conducted to the device on the combustion engine 6 through the metal burner.

[0041] A chimney with a certain height will produce an air draft during the operation of the equipment. The size of the air draft of the chimney is related to the height of the chimney and the temperature of the tail gas in the chimney. The higher the chimney and the higher the temperature of the tail gas, the greater the air draft. Conversely, the smaller the air draft. In principle, the air draft in the chimney can make the sunken hearth 2 present negative pressure to enable fresh air to be sucked from the combustion engine 6 and the normally open valve 63 to obtain cooling effect. However, a considerable part of users install the waste gas incinerator on the roof of a high-rise factory building and it is difficult to install a higher chimney. The chimney provided is too short, which causes the air draft of the chimney to be very small. In the case of power failure, the flow of tail gas entering the chimney is extremely small relying on the air draft of the chimney, which causes the tail gas to stay in the chimney for too long to be cooled down and lose the lifting force.

[0042] In the conventional technology, there is also a method to solve this problem, that is, by raising the platform of the waste gas incineration device, the combustion-supporting fan 62 is separately arranged below the platform to form a drop between the fresh air inlet and the furnace body, but this method needs to increase the investment of building the platform, and also needs to increase the pipeline connection work of the combustion-supporting fan 62 and increase the isolation facilities for preventing rain and noise, and the external combustion-supporting fan also affects the overall appearance of the device.

[0043] The waste gas fan 71 and the shell inlet 1a arranged below the main heat exchanger 2 can also prevent hot gas from entering the waste gas fan 71 and the waste gas control valve group 72 through the waste gas pipeline in case of sudden power failure, although a check valve is arranged on the waste gas pipeline, but some check valves on the market have poor sealing performance, and if the power failure time is too long, part of the hot gas will pass through the gap between the check valve blades and melt the plastic devices and wire sheaths of the devices installed on the waste gas pipeline. The application is provided with a normally open fresh air valve that is automatically opened in case of power failure on the connecting pipeline of the waste gas fan 71 below the furnace body 1, when the fresh air valve is opened, even if there is no chimney suction effect, the main heat exchanger interval above it in a high temperature state will generate a chimney-like suction effect to generate air convection from bottom to top, the fresh air is sucked from the fresh air valve below to the exhaust gas outlet direction at the upper right corner, avoiding the backflow of hot gas into the waste gas pipeline, and the design of the application can solve the problem of replacing the cooling effect of the fan with fresh air in case of disappearance of the chimney suction effect.

[0044] The effects of the structural parts in the application are as follows: the furnace body shell 1 is the external structure of the furnace body, and has the functions of support, wrapping, heat insulation and sealing. The sealing plate 11 is made of stainless steel plate or steel plate with anti-corrosion coating to prevent rainwater from penetrating into the furnace body. The sunken hearth 2 is the high-temperature incineration area of waste gas. The sunken hearth wall is made of refractory material. The main heat exchanger 3 is used for non-contact heat exchange between the high-temperature flue gas after incineration and the waste gas to be incinerated, which can save the incineration of supplementary fuel gas and reduce the tail gas temperature to achieve energy saving. The main heat exchanger can be a tubular heat exchanger made of quartz glass tube. The tail gas cover 4 collects the tail gas and connects the chimney through the tail gas outlet 41. The tail gas cover 4 is made of stainless steel sheet. The tail gas cover is provided with a tail gas outlet 41 at the top. The tail gas outlet is connected with the chimney. The combustion machine 6 is used for preheating the sunken hearth and supplementing the waste gas combustion temperature. The combustion control system 61 is used for controlling the flow, pressure and safety of the fuel gas entering the combustion machine, and controlling ignition and extinguishing. The combustion air fan 62 is used for supplementing combustion air for the combustion machine. The waste gas fan 71 is used for introducing external waste gas into the furnace for treatment. The waste gas control valve group 72 is used for controlling the on-off of the waste gas and the supplement of fresh air. The enclosure area 5 is used for installing the combustion machine 6, the combustion control system 61, the combustion air fan 62, the waste gas fan 71, the waste gas control valve group 72 and the related pipelines. The normally open air valve is restored to the open state by the mechanical force such as elastic force or gravity of the valve body itself under the condition of power failure or without compressed air. The normally open air valve can be of the electric or pneumatic type. The louvers 51 of the enclosure area 5 are made of metal material and are used for ventilation and rain protection. The waste gas pipe interface 73, the compressed air interface 64, the natural gas interface 65 and the electrical junction box 66 can be arranged near the louvers on one side of the furnace body to facilitate the connection of external pipelines. Embodiment

[0045] As Figure 3 and Figure 5 , an integrated safety type waste gas incinerator suitable for outdoor use comprises:

[0046] The furnace body shell 1, the sunken hearth 2, the main heat exchanger 3 and the tail gas cover 4 are sequentially arranged from left to right, and the sunken hearth 2 and the main heat exchanger 3 are located in the furnace body shell 1. The sunken hearth 2 comprises an upper interval 21 and a lower interval 22. The lower interval 22 is located below the horizontal line at the bottom of the main heat exchanger 3. The main heat exchanger 3 comprises a shell side flow channel formed by the gap between the furnace body shell 1 and the heat exchange tube and a tube side flow channel formed in the heat exchange tube of the main heat exchanger 3. The gas outlet of the shell side flow channel of the main heat exchanger 3 and the gas inlet of the tube side flow channel of the main heat exchanger 3 are respectively communicated with the upper interval 21. A shell side gas inlet 1a is arranged on the furnace body shell 1. The tail gas cover 4 is communicated with the gas outlet of the tube side flow channel of the main heat exchanger 3. The tail gas outlet 41 of the tail gas cover 4 is communicated with the external chimney.

[0047] a combustion machine 6, said combustion machine 6 is connected with a combustion control system 61 and a combustion air fan 62, and a combustion port of said combustion machine 6 is located in the lower section 22;

[0048] an exhaust air fan 71 and an exhaust air control valve group 72, an air outlet of said exhaust air fan 71 is communicated with an air inlet of a shell pass flow channel of the main heat exchanger 3 through the shell inlet 1a, and an air inlet of the exhaust air fan 71 is communicated with the exhaust air control valve group 72;

[0049] an enclosure 5, said enclosure 5 is arranged in a lower part of the furnace shell 1 and below the main heat exchanger 3, and said combustion machine 6, combustion control system 61, combustion air fan 62, exhaust air control valve group 72, exhaust air fan 71 and shell inlet 1a are arranged in the enclosure 5.

[0050] In the embodiment, a tail gas hot air heat exchanger 31 and a hot air fan 8 are further included, said tail gas hot air heat exchanger 31 is installed in the furnace shell 1 and located between the main heat exchanger 3 and the tail gas cover 4, so that the gas from the air outlet of the shell pass flow channel of the main heat exchanger 3 passes through the tail gas hot air heat exchanger 31 and enters the tail gas cover 4, a hot air inlet 1b and a hot air outlet 1c are arranged on the furnace shell 1, an air outlet of said hot air fan 8 is communicated with an air inlet of the tail gas hot air heat exchanger 31 through the hot air inlet 1b, and the hot air fan 8 is installed in the enclosure 5.

[0051] In the embodiment, said furnace shell 1 is a sealed cavity composed of metal material and internally provided with heat-insulating refractory material.

[0052] In the embodiment, said main heat exchanger 3 is a tube heat exchanger, and said combustion machine 6 is a gas combustion machine.

[0053] In the embodiment, said combustion machine 6 is connected with the combustion control system 61 and the combustion air fan 62, said combustion control system 61 is composed of gas pressure and flow monitoring and control devices, and a normally open air valve 63 is arranged on an air outlet pipeline of said combustion air fan 62.

[0054] In the embodiment, said exhaust air control valve group 72 includes an exhaust air switching valve and a normally open fresh air valve.

[0055] In the embodiment, a sealing plate 11 is arranged on said furnace shell 1, and said sealing plate 11 is located on a surface of the furnace shell 1 corresponding to the sunken hearth 2, main heat exchanger 3 and tail gas hot air heat exchanger 31.

[0056] In this embodiment, the enclosure area 5 is equipped with louvers 51, exhaust gas pipe interface 73, compressed air interface 64, natural gas interface 65, electrical junction box 66, and hot air outlet 82. The exhaust gas pipe interface 73 is connected to the air inlet of the exhaust gas control valve group 72, and the compressed air interface 64 and natural gas interface 65 are respectively connected to the combustion control system 61.

[0057] Example 2 adds an exhaust gas hot air heat exchanger 31 and a hot air blower 8 to Example 1. The exhaust gas hot air heat exchange can be achieved using a tubular heat exchanger. High-temperature exhaust gas flows through the outer wall of the heat exchange tubes, while heated air flows through the inside of the tubes. Heat exchange occurs between the two through the tube walls. The hot air after heat exchange flows out from the outlet of the tubular heat exchanger and can be connected to an external pipeline through the hot air outlet 1c. The hot air inlet 1b and hot air outlet 1c of the exhaust gas hot air heat exchanger are both located within the enclosure area 5. The hot air blower 8 can be installed within the enclosure area 5. This example increases energy efficiency by recovering heat from the exhaust gas to obtain waste heat hot air. Example

[0058] like Figure 4 and Figure 5 An integrated, safe waste gas incinerator suitable for outdoor use, comprising:

[0059] The furnace consists of an outer shell 1, a recessed furnace chamber 2, a main heat exchanger 3, and an exhaust hood 4. The recessed furnace chamber 2, the main heat exchanger 3, and the exhaust hood 4 are arranged sequentially from left to right, and the recessed furnace chamber 2 and the main heat exchanger 3 are located in the outer shell 1. The recessed furnace chamber 2 includes an upper section 21 and a lower section 22. The lower section 22 is located below the horizontal line at the bottom of the main heat exchanger 3. The main heat exchanger 3 includes a shell-side flow channel formed by the gap between the outer shell 1 and the heat exchange tubes and a tube-side flow channel formed inside the heat exchange tubes of the main heat exchanger 3. The outlet of the shell-side flow channel and the inlet of the tube-side flow channel of the main heat exchanger 3 are respectively connected to the upper section 21. A shell-side inlet 1a is provided on the outer shell 1. The exhaust hood 4 is connected to the outlet of the tube-side flow channel of the main heat exchanger 3. The exhaust port 41 of the exhaust hood 4 is connected to the external chimney.

[0060] Burner 6; The burner 6 is connected to a combustion control system 61 and a combustion fan 62, and the combustion port of the burner 6 is located in the lower section 22;

[0061] Exhaust gas fan 71 and exhaust gas control valve group 72; the outlet of the exhaust gas fan 71 is connected to the inlet of the shell-side flow channel of the main heat exchanger 3 through the shell-side inlet 1a, and the inlet of the exhaust gas fan 71 is connected to the exhaust gas control valve group 72.

[0062] The enclosure 5 is arranged at the lower part of the furnace shell 1 and below the main heat exchanger 3, and the combustion machine 6, the combustion control system 61, the combustion air fan 62, the exhaust gas control valve group 72, the exhaust gas fan 71 and the shell inlet 1a are arranged in the enclosure 5.

[0063] In the embodiment, the tail gas hot air heat exchanger 31 is arranged in the furnace shell 1 and between the main heat exchanger 3 and the tail gas cover 4, so that the gas from the outlet of the main heat exchanger 3 passes through the tail gas hot air heat exchanger 31 and enters the tail gas cover 4, the hot air inlet 1b and the hot air outlet 1c are arranged on the furnace shell 1, the outlet of the hot air fan 8 is connected with the inlet of the tail gas hot air heat exchanger 31 through the hot air inlet 1b, and the hot air fan 8 is arranged in the enclosure 5.

[0064] In the embodiment, the water coil heat exchanger 32 is arranged at the inlet of the tail gas cover 4.

[0065] In the embodiment, the furnace shell 1 is a sealed cavity made of metal material and internally provided with heat insulation refractory material.

[0066] In the embodiment, the main heat exchanger 3 is a tube heat exchanger, and the combustion machine 6 is a gas combustion machine.

[0067] In the embodiment, the combustion machine 6 is connected with the combustion control system 61 and the combustion air fan 62, the combustion control system 61 is composed of gas pressure and flow monitoring and control devices, and the outlet pipeline of the combustion air fan 62 is provided with a normally open air valve 63.

[0068] In the embodiment, the exhaust gas control valve group 72 includes an exhaust gas switching valve and a normally open fresh air valve.

[0069] In the embodiment, the furnace shell 1 is provided with a sealing plate 11, and the sealing plate 11 is arranged on the surface of the furnace shell 1 corresponding to the sunken hearth 2, the main heat exchanger 3 and the tail gas hot air heat exchanger 31.

[0070] In the embodiment, the enclosure 5 is provided with a louver 51, an exhaust gas pipe interface 73, a compressed air interface 64, a natural gas interface 65, an electrical junction box 66 and a hot air outlet 82, the exhaust gas pipe interface 73 is connected with the inlet of the exhaust gas control valve group 72, and the compressed air interface 64 and the natural gas interface 65 are connected with the combustion control system 61.

[0071] The embodiment 3 is based on the embodiment 2 and further comprises a water coil heat exchanger 32, which exchanges heat with the tail gas before discharge to obtain hot water, so that the tail gas waste heat can be fully utilized to achieve greater energy saving benefits.

[0072] The above detailed description of the embodiments of the present application is made in combination with the drawings, but the present application is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and variations of the embodiments without departing from the principles and purposes of the present application still fall within the protection scope of the present application.

Claims

1. An integrated safety type waste gas incinerator suitable for outdoor use, characterized in that it comprises: a furnace shell (1), a sunken hearth (2), a main heat exchanger (3) and an exhaust gas cover (4); the sunken hearth (2), the main heat exchanger (3) and the exhaust gas cover (4) are sequentially arranged from left to right, and the sunken hearth (2) and the main heat exchanger (3) are located in the furnace shell (1), the sunken hearth (2) comprises an upper section (21) and a lower section (22), the lower section (22) is located below the horizontal line at the bottom of the main heat exchanger (3), the main heat exchanger (3) comprises a shell side flow channel formed by the gap between the furnace shell (1) and the heat exchange tube and a tube side flow channel formed in the heat exchange tube of the main heat exchanger (3), the gas outlet of the shell side flow channel of the main heat exchanger (3) and the gas inlet of the tube side flow channel of the main heat exchanger (3) are communicated with the upper section (21), a shell side gas inlet (1a) is arranged on the furnace shell (1), the exhaust gas cover (4) is communicated with the gas outlet of the tube side flow channel of the main heat exchanger (3), and an exhaust gas outlet (41) of the exhaust gas cover (4) is communicated with an external chimney; a burner (6); the burner (6) is connected with a combustion control system (61) and a combustion air fan (62), and a combustion port of the burner (6) is located in the lower section (22); an exhaust gas fan (71) and an exhaust gas control valve group (72); the gas outlet of the exhaust gas fan (71) is communicated with the gas inlet of the shell side flow channel of the main heat exchanger (3) through the shell side gas inlet (1a), and the gas inlet of the exhaust gas fan (71) is communicated with the exhaust gas control valve group (72); and an enclosure area (5); the enclosure area (5) is arranged at the lower part of the furnace shell (1) and below the main heat exchanger (3), and the burner (6), the combustion control system (61), the combustion air fan (62), the exhaust gas control valve group (72), the exhaust gas fan (71) and the shell side gas inlet (1a) are arranged in the enclosure area (5). Further comprising an exhaust gas hot air heat exchanger (31) and a hot air fan (8), the exhaust gas hot air heat exchanger (31) is installed in the furnace shell (1) and located between the main heat exchanger (3) and the exhaust gas cover (4), so that the gas from the gas outlet of the tube side flow channel of the main heat exchanger (3) enters the exhaust gas cover (4) through the exhaust gas hot air heat exchanger (31), a hot air inlet (1b) and a hot air outlet (1c) are arranged on the furnace shell (1), the gas outlet of the hot air fan (8) is communicated with the gas inlet of the exhaust gas hot air heat exchanger (31) through the hot air inlet (1b), and the hot air fan (8) is installed in the enclosure area (5).

2. The integrated safety type exhaust incinerator for outdoor use according to claim 1, wherein Further comprising a water coil heat exchanger (32), the water coil heat exchanger (32) is installed at the gas inlet of the exhaust gas cover (4).

3. The integrated safety type waste incinerator suitable for outdoor use according to claim 2, characterized in that The furnace shell (1) is a sealed cavity composed of a metal material and internally provided with heat insulation refractory material.

4. The integrated safety type waste incinerator for outdoor use according to claim 1, wherein The main heat exchanger (3) is a tube heat exchanger, and the burner (6) is a gas burner.

5. The integrated safety type waste incinerator for outdoor use according to claim 1, wherein ​ 6. The integrated safety waste incinerator suitable for outdoor use according to claim 1, wherein The combustion machine (6) is connected with a combustion control system (61) and a combustion air fan (62) respectively, the combustion control system (61) is composed of gas pressure and flow monitoring and control devices; the combustion air fan (62) is provided with a normally open air valve (63) on the air outlet pipeline.

7. The integrated safety waste incinerator suitable for outdoor use as claimed in claim 1, wherein The waste gas control valve group (72) comprises a waste gas switching valve and a normally open fresh air valve.

8. The integrated safety waste incinerator suitable for outdoor use as claimed in claim 1, wherein A sealing plate (11) is arranged on the furnace body shell (1), and the sealing plate (11) is located on the surface of the furnace body shell (1) corresponding to the sunken hearth (2) and the main heat exchanger (3).

9. The integrated safety waste incinerator suitable for outdoor use as claimed in claim 1, wherein A louver (51), a waste gas pipe interface (73), a compressed air interface (64), a natural gas interface (65), an electric appliance junction box (66) and a hot air outlet (82) are arranged on the enclosure area (5), the waste gas pipe interface (73) is communicated with the gas inlet of the waste gas control valve group (72), and the compressed air interface (64) and the natural gas interface (65) are connected with the combustion control system (61) respectively.

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