Flameless burner with flame cooling function

Abstract

The invention relates to the technical field of combustors, in particular to a flameless combustor with a flame cooling function, which comprises a combustor body, a mixer, an igniter, metal fibers and a cooling device, the mixer is connected with a gas pipeline and an air pipeline, the metal fiber is installed on the burner body, and the igniter is installed on the metal fiber; the cooling device comprises a water inlet coil pipe, a water outlet coil pipe and a water cooling assembly; a cooling water channel is formed in the burner body and arranged on the periphery of the metal fiber in a winding mode. The water outlet end of the water inlet coil pipe is connected with the water inlet end of the cooling water channel, the water inlet end of the water cooling assembly is connected with the water outlet end of the water outlet coil pipe, the water outlet end of the water cooling assembly is connected with the water inlet end of the water inlet coil pipe, and the water inlet end of the water outlet coil pipe is connected with the water outlet end of the cooling water channel. And the combustor body shell on the periphery of the metal fibers can be cooled conveniently through the cooling device, the situation that the combustor body shell on the periphery of the metal fibers is damaged due to too high temperature is avoided, and the service life of the flameless combustor is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of burners, and in particular to a flameless burner with a flame cooling function. Background Art

[0002] A flameless burner is a device that burns gas fuel, which is composed of a gas nozzle and an air regulator. It mixes air and fuel before burning. Through the precise control of the mixing ratio and speed of the fuel and air, the fuel is fully mixed and burned in the combustion chamber, producing a flameless blue flame. At present, flameless burners are mainly used in gas stoves, gas water heaters, wall-mounted boilers, industrial kilns and other fields.

[0003] The flameless burner of the prior art includes a mixer body, on which a distributor and metal fibers are arranged in sequence. The mixed gas generated by the mixer body forms a high-speed airflow through the distributor, and then flows out through the metal fibers; the flame burning on the surface of the metal fiber radiates outward through the coil; the mixer body is connected to a gas pipeline and an air pipeline, one end of the air pipeline is connected to the air, and the other end is arranged in the mixer body, one end of the gas pipeline is connected to the gas pipeline, and the other end is arranged in the mixer body; an ignition device is arranged on the surface of the metal fiber, and a temperature monitoring device is arranged on one side of the ignition device.

[0004] With regard to the above-mentioned related technologies, during the long-term use of the flameless burner, the high temperature generated by the flame burning on the surface of the metal fiber acts on the shell of the mixer body, causing damage to the burner body and affecting the service life of the flameless burner. Summary of the invention

[0005] In order to extend the service life of the flameless burner, the present application provides a flameless burner with a flame cooling function.

[0006] A flameless burner with flame cooling function, comprising a burner body, a mixer, an igniter, metal fibers and a cooling device; The burner body is provided with a gas inlet and an air inlet; The mixer is mounted on the burner body, and the air inlet end of the mixer is connected with a gas pipeline and an air pipeline, the gas pipeline passes through the gas inlet and is connected to the mixer, and the air pipeline passes through the air inlet and is connected to the mixer; The metal fiber is installed on the burner body, and the metal fiber is located directly above the mixer, and the mixed gas generated by the mixer flows outward along the metal fiber; The igniter is installed on the metal fiber, and the igniter is used for igniting the gas; The cooling device comprises a water inlet coil, a water outlet coil and a water cooling assembly; A cooling water channel is provided on the casing of the burner body, the cooling water channel is arranged around the outer periphery of the metal fiber, and the cooling water channel is arranged in a spiral shape; the water inlet coil is installed on the burner body, and the water outlet end of the water inlet coil is connected to the water inlet end of the cooling water channel; the water inlet end of the water cooling component is connected to the water outlet end of the water outlet coil, and the water outlet end of the water cooling component is connected to the water inlet end of the water inlet coil; the water outlet coil is installed on the burner body, and the water inlet end of the water outlet coil is connected to the water outlet end of the cooling water channel; The water cooling assembly is used for cooling the liquid at the water outlet end of the water outlet coil.

[0007] By adopting the above technical scheme, the gas is transported to the mixer through the gas pipeline, and at the same time, the air is transported to the mixer through the air pipeline. The mixed gas generated by the gas and air in the mixer flows outward along the metal fibers, and the gas is ignited by the igniter, thereby realizing the gas ignition operation of the flameless burner. Due to the long-term use of the flameless burner, the shell temperature of the mixer body is too high. Therefore, during the operation of the flameless burner, the liquid enters the cooling water channel along the water inlet coil, and the heat on the casing of the burner body is transferred to the liquid in the cooling water channel. The liquid carrying heat flows along the cooling water channel to the water outlet coil, and then flows along the water outlet coil to the water cooling component, thereby realizing the cooling of the liquid carrying heat. The flameless burner with flame cooling function is designed, and the cooling device is used to cool the burner body shell around the metal fibers, thereby avoiding damage caused by excessive temperature of the burner body shell around the metal fibers, thereby extending the service life of the flameless burner.

[0008] Optionally, the water cooling assembly includes a water cooling box, a water outlet pipe, a water inlet pipe, a water outlet valve, a water inlet valve and a water pump; The water cooling box is installed on the burner body, and the water cooling box is located directly below the mixer; The water outlet end of the water outlet coil is connected to the water inlet end of the water cooling box, and the water inlet coil and the water outlet coil are distributed on opposite sides of the water cooling box, the water inlet end of the water inlet coil is connected to the water pump, and the water pump is located in the water cooling box; The water inlet pipe is fixedly connected to the side wall of the water cooling box, and the water inlet valve is installed on the water inlet pipe; The water outlet pipe is fixedly connected to the bottom wall of the water cooling box, and the water outlet valve is installed on the water outlet pipe.

[0009] By adopting the above technical scheme, the water cooler of the water cooling box is adjusted, and the water cooler of the water cooling box cools the liquid in the water cooling box. The heat-carrying liquid flows into the water cooling box along the water outlet coil, and the heat-carrying liquid is fully mixed with the cooled liquid, so that the temperature of the mixed liquid in the water cooling box is reduced. Then, the water pump is adjusted, and the water pump flows the cooled liquid in the water cooling box along the water outlet coil into the cooling water channel to achieve the cooling of the burner body; in addition, when the liquid in the water cooling box is replaced or supplemented, the water outlet valve is adjusted, and the liquid in the water cooling box is discharged along the water outlet pipe. Then, the water inlet pipe is connected to the external water source, and the water inlet valve is adjusted to achieve the replacement or supplement of the liquid in the water cooling box; the designed water cooling component is convenient for cooling the heat-carrying liquid and realizing the reuse of the liquid.

[0010] Optionally, the water outlet end of the water outlet coil is arranged close to the bottom wall of the water cooling box; and the water inlet end of the water inlet coil is arranged close to the top of the water cooling box.

[0011] By adopting the above technical scheme, the water outlet coil arranged near the bottom wall of the water cooling box and the water inlet coil arranged near the top of the water cooling box facilitate the liquid carrying heat to enter the inner cavity of the water cooling box along the bottom of the water cooling box and flow out along the water outlet coil, thereby increasing the movement path of the liquid carrying heat and ensuring that the liquid flowing into the water outlet coil is in a cooling state.

[0012] Optionally, a booster pump is installed on the extension section of the water outlet coil extending into the water cooling box, and a plurality of water spray holes are opened on the extension section of the water outlet coil extending into the water cooling box, and the water spray holes are arranged close to the water outlet end of the water outlet coil.

[0013] By adopting the above technical scheme, in the process that the heat-carrying liquid enters the inner cavity of the water cooling box along the water outlet coil, under the action of the booster pump, the heat-carrying liquid in the water outlet coil is discharged along the water spray hole on the extension section of the water outlet coil extending into the water cooling box, thereby increasing the drainage pressure of the water outlet coil, achieving rapid mixing of the heat-carrying liquid and the cooling liquid in the water cooling box, and then achieving rapid cooling of the heat-carrying liquid; the designed booster pump and water spray hole are convenient for increasing the drainage pressure of the water outlet coil, achieving turbulence on the liquid in the cooling box, and achieving rapid mixing of the heat-carrying liquid and the cooling liquid, thereby achieving rapid cooling of the heat-carrying liquid.

[0014] Optionally, the cooling device further comprises an air cooling assembly, wherein the air cooling assembly comprises an air cooling box, an air cooling drain pipe, an air cooling water inlet valve, an air cooling water outlet valve and an air cooling part; The air-cooled liquid discharge pipe comprises a liquid inlet portion, a coil portion and a liquid outlet portion which are connected in sequence, the coil portion is located in the inner cavity of the air-cooled box, and the air-cooled box is installed on the burner body; the ends of the liquid inlet portion and the liquid outlet portion extending out of the air-cooled box are both connected to the water inlet coil; The air-cooled water inlet valve is installed on the extension section of the liquid inlet portion extending out of the air-cooled box, and the air-cooled water outlet valve is installed on the extension section of the liquid outlet portion extending out of the air-cooled box; The control valve is installed on the water outlet coil, and the control valve is located between the liquid inlet and the liquid outlet; The air cooling component is installed on the burner body, and the air cooling component is used for cooling the liquid in the coil part.

[0015] By adopting the above technical scheme, when the temperature in the water cooling box cannot meet the cooling requirement of the mixer body shell, the control valve is closed, and the air cooling water inlet valve and the air cooling water outlet valve are opened. Under the action of the water pump, the liquid in the water cooling box enters the water inlet coil, the liquid in the water inlet coil enters the liquid inlet part, and then flows into the coil part along the liquid inlet part. During the flow of the liquid in the coil part, the air cooling part cools the liquid inside the coil part, and the cooled liquid flows along the coil part to the liquid outlet part, and then is transported to the water inlet coil along the liquid outlet part, so as to realize secondary cooling of the liquid. The designed air cooling component is convenient for secondary cooling of the liquid in the water cooling box according to the liquid temperature in the water cooling box. If the liquid temperature in the water cooling box is too high, the air cooling component performs secondary cooling on the liquid in the coil part and then transports it to the cooling water channel. If the liquid temperature in the water cooling box meets the requirements, the liquid cooled by the water cooling component is transported to the cooling water channel.

[0016] Optionally, the air cooling component includes an exhaust pipe, an exhaust valve and a cold air pipe; The cold air duct and the exhaust air duct are installed on opposite sides of the air cooling box, and both the cold air duct and the exhaust air duct are connected to the inner cavity of the air cooling box, and the coil part is located between the cold air duct and the exhaust air duct; One end of the exhaust pipe passes through the burner body, and the exhaust valve is installed on the exhaust pipe.

[0017] By adopting the above technical scheme, the cold air generated by the cold air duct cools the air in the inner cavity of the air cooling box, and then cools the coil part in the air cooling box, thereby realizing the cooling of the liquid in the coil part. The exhaust valve is adjusted, and the air in the air cooling box is discharged along the exhaust duct to discharge the residual heat in the air cooling box. The designed air cooling parts are convenient for cooling the air in the inner cavity of the cold air box, and then cooling the liquid in the coil part, thereby realizing secondary cooling of the liquid in the coil part.

[0018] Optionally, a plurality of cold air ducts are provided.

[0019] By adopting the above technical solution, a plurality of cold air ducts are provided, which facilitates increasing the cooling rate of the air in the air cooling box, thereby increasing the cooling rate of the liquid in the coil unit.

[0020] Optionally, the cooling device further includes a first water-cooled temperature control component, and the first water-cooled temperature control component includes a controller and a first temperature detector; The controller is installed on the burner body, the first temperature detector is installed on the water cooling box, and the first temperature detector is used to detect the liquid temperature in the water cooling box, and the controller, the first temperature detector, the air-cooled water inlet valve, the air-cooled water outlet valve, the exhaust valve and the control valve are electrically connected.

[0021] By adopting the above technical solution, when the first water-cooled temperature control component is working, the first temperature detector detects the liquid in the water-cooled box. When the first temperature detector detects that the temperature of the liquid in the water-cooled box is too high, the first temperature detector transmits a signal to the controller, and the controller sends instructions to the control valve, the air-cooled water inlet valve, the air-cooled water outlet valve and the exhaust valve to control the valve to close. At the same time, the air-cooled water inlet valve, the air-cooled water outlet valve and the exhaust valve are all opened. Under the action of the water pump, the liquid in the water-cooled box flows into the liquid inlet part along the water inlet coil, and then flows into the coil part along the liquid inlet part. The liquid During the flow of the coil section, the cold air generated by the cold air duct cools the air in the inner cavity of the air-cooled box, and then cools the coil section in the air-cooled box, and the residual heat in the air-cooled box is discharged along the exhaust duct to achieve the cooling of the liquid in the coil section. The cooled liquid flows along the coil section to the liquid outlet section, and then is transported to the water inlet coil along the liquid outlet section to achieve secondary cooling of the liquid. The designed first water-cooled temperature control component is convenient for automatic control of the air-cooled component, and then for the temperature of the liquid in the water-cooled box, and automatically determines the opening and closing of the air-cooled component to achieve secondary cooling of the high-temperature liquid.

[0022] Optionally, the cooling device further comprises a second water-cooled temperature control component, and the second water-cooled temperature control component comprises a second temperature detector; The second temperature detector is installed on the liquid outlet, and is used to detect the temperature of the liquid in the inner cavity of the liquid outlet; the controller, the second temperature detector, the water pump, the water inlet valve and the water outlet valve are electrically connected.

[0023] By adopting the above technical scheme, when the second water-cooled temperature control component is working, the second temperature detector detects the liquid in the liquid outlet part. When the second temperature detector detects that the temperature of the liquid in the liquid outlet part is too high, the second temperature detector transmits a signal to the controller, and the controller sends instructions to the water pump, the water inlet valve and the water outlet valve, and the water pump is turned off. At the same time, the water inlet valve is closed, the water outlet valve is opened, and the liquid in the water cooling box is discharged along the water outlet pipe, so that the liquid in the water cooling box is discharged from the water cooling box. The liquid in the water cooling box is completely discharged, and then the water inlet valve is opened to re-inject normal temperature liquid into the water cooling box; the designed second water-cooled temperature control component is convenient for detecting the liquid in the liquid outlet part, realizing the temperature detection of the liquid in the liquid outlet part, and then controlling the replacement of the liquid in the water cooling box to ensure the cooling effect of the flameless burner.

[0024] Optionally, a distributor is installed on the burner body, and the distributor is located between the mixer and the metal fiber. The mixed gas generated by the mixer forms a high-speed airflow through the distributor.

[0025] By adopting the above technical solution, the designed distributor makes it easier for the mixed gas generated by the mixer to be evenly distributed on the metal fiber, so that the mixed gas can be fully burned. At the same time, it ensures that the flame generated on the metal fiber is evenly distributed on the surface of the metal fiber, thereby improving the utilization rate of the mixed gas.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The flameless burner with flame cooling function is designed to cool down the burner body shell around the metal fiber through the water cooling component, so as to avoid the burner body shell around the metal fiber from being damaged due to excessive temperature, thus extending the service life of the flameless burner; 2. The flameless burner with flame cooling function is designed to perform secondary cooling of the liquid in the water cooling box according to the liquid temperature in the water cooling box through the air cooling component. If the liquid temperature in the water cooling box is too high, the air cooling component will perform secondary cooling on the liquid in the coil part and then transport it to the cooling water channel. If the liquid temperature in the water cooling box meets the requirements, the liquid cooled by the water cooling component will be transported to the cooling water channel. 3. The flameless burner with flame cooling function is designed to automatically control the air cooling component through the first water-cooling temperature control component, and then the temperature of the liquid in the water cooling box is facilitated, and the opening and closing of the air cooling component is automatically determined to achieve secondary cooling of the high-temperature liquid; the second water-cooling temperature control component is used to detect the liquid in the liquid outlet, and the temperature of the liquid in the liquid outlet is detected, and then the replacement of the liquid in the water cooling box is controlled to ensure the cooling effect of the flameless burner. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of a flameless burner with a flame cooling function according to Example 1 of the present application; Figure 2 It is a cross-sectional view of a flameless burner with a flame cooling function in Example 1 of the present application, which is intended to illustrate a gas pipeline and an air pipeline; Figure 3 is a cross-sectional view of a flameless burner with a flame cooling function according to Example 1 of the present application, which is intended to illustrate a water inlet coil and a water outlet coil; Figure 4 yes Figure 3 An enlarged schematic diagram of part A.

[0028] Explanation of the reference numerals: 1. burner body; 2. mixer; 21. gas inlet; 22. gas pipeline; 23. gas valve; 24. air inlet; 25. air pipeline; 26. air valve; 3. distributor; 4. metal fiber; 5. igniter; 6. cooling device; 61. water inlet coil; 62. cooling water channel; 63. water outlet coil; 64. water cooling assembly; 641. water cooling box; 642. water outlet pipe; 643. water outlet valve; 644. water inlet pipe; 645. water inlet valve; 646. water pump; 647. booster pump ; 648, water spray hole; 65, air-cooled component; 651, air-cooled box; 652, air-cooled drain pipe; 6521, liquid inlet; 6522, coil; 6523, liquid outlet; 653, air-cooled water inlet valve; 654, air-cooled water outlet valve; 655, control valve; 656, air-cooled parts; 6561, cold air duct; 6562, exhaust duct; 6563, exhaust valve; 66, first water-cooled temperature control component; 661, controller; 662, first temperature detector; 67, second water-cooled temperature control component; 671, second temperature detector. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-4 This application is described in further detail.

[0030] The embodiment of the present application discloses a flameless burner with a flame cooling function.

[0031] Reference Figure 1 and Figure 2 A flameless burner with flame cooling function, comprising a burner body 1, a mixer 2, an igniter 5, a distributor 3, a metal fiber 4 and a cooling device 6, wherein the mixer 2, the igniter 5, the distributor 3, the metal fiber 4 and the cooling device 6 are all mounted on the burner body 1, and the mixer 2, the distributor 3 and the metal fiber 4 are arranged in sequence from low to high; a gas inlet 21 and an air inlet 24 are provided on the burner body 1, a gas pipeline 22 and an air pipeline 25 are installed at the air inlet end of the mixer 2, the gas pipeline 22 passes through the gas inlet 21 and is threadedly connected to the air inlet end of the mixer 2, and a gas pipeline 25 is installed on the extension section of the gas pipeline 22 extending out of the mixer 2 body An air valve 23 is provided, and an air pipeline 25 passes through the air inlet 24 and is threadedly connected to the air inlet end of the mixer 2. An air valve 26 is installed on the extension section of the air pipeline 25 extending out of the mixer 2 body. The gas is transported to the mixer 2 through the gas pipeline 22, and the air is transported to the mixer 2 through the air pipeline 25. The gas and air are fully mixed through the mixer 2, and the mixed gas is evenly distributed through the distributor 3. Moreover, the mixed gas generated by the mixer 2 forms a high-speed airflow through the distributor 3, and the mixed gas generated by the mixer 2 flows outward along the metal fiber 4. The igniter 5 is installed on the metal fiber 4, and the igniter 5 is used to ignite the gas to realize the ignition of the mixed gas.

[0032] Reference Figure 2 and Figure 3 The cooling device 6 includes a water inlet coil 61, a water outlet coil 63, a water cooling component 64, an air cooling component 65, a first water cooling temperature control component 66 and a second water cooling temperature control component 67; a cooling water channel 62 is provided on the casing of the burner body 1, and the cooling water channel 62 is arranged around the outer periphery of the metal fiber 4, and the cooling water channel 62 is arranged in a spiral shape. In this embodiment, the cooling water channel 62 is coaxially arranged with the metal fiber 4, and the highest point of the cooling water channel 62 is higher than the metal fiber 4, and the lowest point of the cooling water channel 62 is lower than the metal fiber 4, so as to cool the casing of the burner body 1 around the metal fiber 4 through the cooling water channel 62; the water inlet coil 61 is installed on the burner body 1, and the water inlet coil 61 The water outlet end is connected to the water inlet end of the cooling water channel 62, the water inlet end of the water inlet coil 61 is connected to the water outlet end of the water cooling component 64, the water inlet end of the water cooling component 64 is connected to the water outlet end of the water outlet coil 63, the water outlet coil 63 is installed on the burner body 1, and the water inlet end of the water outlet coil 63 is connected to the water outlet end of the cooling water channel 62; in this embodiment, the water inlet coil 61 and the water outlet coil 63 are distributed on both sides of the central axis of the metal fiber 4, and the water inlet coil 61 and the water outlet coil 63 are both serpentinely arranged to increase the cooling path of the liquid. At the same time, the water inlet coil 61 and the water outlet coil 63 are located in the inner cavity of the burner body 1, and the water inlet coil 61 and the water outlet coil 63 are fixed to the burner body 1 by buckles.

[0033] Reference Figure 2 and Figure 3The water cooling assembly 64 is used for liquid cooling of the water outlet end of the water outlet coil 63. The water cooling assembly 64 includes a water cooling box 641, a water outlet pipe 642, a water inlet pipe 644, a water outlet valve 643, a water inlet valve 645 and a water pump 646; the water cooling box 641 is installed on the burner body 1, and the water cooling box 641 is located directly below the mixer 2. In this embodiment, the water cooling box 641 is fixed to the burner body 1 by bolts; the water outlet end of the water outlet coil 63 is connected to the water inlet end of the water cooling box 641, and the water outlet end of the water outlet coil 63 is arranged close to the bottom wall of the water cooling box 641, and the water outlet end of the water outlet coil 63 is arranged close to the bottom wall of the water cooling box 641. A booster pump 647 is installed on the extension section of the water coil 63 extending into the water cooling box 641, and a plurality of water spray holes 648 are opened on the extension section of the water outlet coil 63 extending into the water cooling box 641. In the present application, there are multiple groups of water spray holes 648, which can be set to three groups, four groups, or five groups, as long as the liquid in the water outlet coil 63 can be discharged. In the present embodiment, the water spray holes 648 are set to four groups, and the four groups of water spray holes 648 are evenly distributed along the circumferential direction of the extension section of the water outlet coil 63 extending out of the water cooling box 641, and each group of water spray holes 648 is evenly distributed along the circumferential direction of the extension section of the water outlet coil 63 extending out of the water cooling box 641. 48 are arranged along the length direction of the extension section of the water outlet coil 63 extending out of the water cooling box 641, and each group of water spray holes 648 is provided with a plurality of water spray holes 648, and the water spray holes 648 are arranged near the water outlet end of the water outlet coil 63; so that under the action of the booster pump 647, the pressure of the liquid sprayed out of the water outlet coil 63 is increased, and the turbulence of the liquid in the water cooling box 641 is realized, so that the liquid carrying heat in the water cooling box 641 is evenly mixed with the cooling liquid; the water inlet coil 61 and the water outlet coil 63 are distributed on opposite sides of the water cooling box 641, and the water inlet end of the water inlet coil 61 is close to the water pump 647. 46 connection, the water inlet end of the water inlet coil 61 is arranged near the top of the water cooling box 641, and the water pump 646 is located in the water cooling box 641. In this embodiment, the water inlet coil 61 is welded in the water cooling box 641, and the water inlet coil 61 and the water pump 646 are connected by a flange; the water inlet pipe 644 is fixedly connected to the side wall of the water cooling box 641, and the water inlet valve 645 is installed on the water inlet pipe 644, the water outlet pipe 642 is fixedly connected to the bottom wall of the water cooling box 641, and the water outlet valve 643 is installed on the water outlet pipe 642, so as to facilitate the replacement of the liquid in the water cooling box 641.

[0034] Reference Figure 3 and Figure 4The air-cooling assembly 65 includes an air-cooling box 651, an air-cooling drain pipe 652, an air-cooling water inlet valve 653, an air-cooling water outlet valve 654, a control valve 655 and an air-cooling part 656; the air-cooling drain pipe 652 includes a liquid inlet portion 6521, a coil portion 6522 and a liquid outlet portion 6523 connected in sequence. In this embodiment, the liquid inlet portion 6521, the coil portion 6522 and the liquid outlet portion 6523 are connected as a whole. The coil portion 6522 is located in the inner cavity of the air-cooling box 651, and the air-cooling box 651 is installed on the burner body 1. In this embodiment, the coil portion 6522 is arranged in a spiral shape to increase the movement path of the liquid in the coil portion 6522, thereby facilitating the coil portion 6 522 is cooled; one end of the liquid inlet 6521 and the liquid outlet 6523 extending out of the air cooling box 651 are connected to the water inlet coil 61, the air cooling water inlet valve 653 is installed on the extension section of the liquid inlet 6521 extending out of the air cooling box 651, and the air cooling water outlet valve 654 is installed on the extension section of the liquid outlet 6523 extending out of the air cooling box 651; the control valve 655 is installed on the water outlet coil 63, and the control valve 655 is located between the liquid inlet 6521 and the liquid outlet 6523, so as to realize the interception of the water outlet coil 63 through the control valve 655, and realize the liquid in the water outlet coil 63 to flow around along the air cooling drain pipe 652; the air cooling part 656 is installed on On the burner body 1, the air-cooling part 656 is used for cooling the liquid in the coil part 6522. The air-cooling part 656 includes an exhaust pipe 6562, an exhaust valve 6563 and a cold air pipe 6561. A plurality of cold air pipes 6561 are provided. In the present application, there can be two, three or four cold air pipes 6561, as long as the cooling of the liquid in the inner cavity of the coil part 6522 is achieved. In the present embodiment, three cold air pipes 6561 are provided, and the three cold air pipes 6561 are arranged in sequence along the flow direction of the liquid in the inner cavity of the coil part 6522, so as to facilitate the rapid cooling of the coil part 6522 in the air-cooling box 651; the cold air pipe 6561 and the exhaust air pipe 6562 are installed On the opposite sides of the air-cooled box 651, the cold air duct 6561 and the exhaust duct 6562 are both connected to the inner cavity of the air-cooled box 651, and the coil part 6522 is located between the cold air duct 6561 and the exhaust duct 6562, so as to realize the convection of air in the air-cooled box 651 through the cold air duct 6561 and the exhaust duct 6562, and cool the coil part 6522 during the air convection; in addition, one end of the exhaust duct 6562 passes through the burner body 1, and the exhaust valve 6563 is installed on the exhaust duct 6562, so as to facilitate the retention of cold air in the air-cooled box 651, and at the same time, it is convenient to quickly discharge the heat carried by the coil part 6522 from the air-cooled box 651.

[0035] Reference Figure 2The first water-cooled temperature control component 66 includes a controller 661 and a first temperature detector 662. The controller 661 is installed on the burner body 1, and the first temperature detector 662 is installed on the water-cooled box 641. The first temperature detector 662 is used to detect the liquid temperature in the water-cooled box 641. The controller 661, the first temperature detector 662, the air-cooled water inlet valve 653, the air-cooled water outlet valve 654, the exhaust valve 6563 and the control valve 655 are electrically connected.

[0036] Reference Figure 3 and Figure 4 The second water-cooled temperature control component 67 includes a second temperature detector 671; the second temperature detector 671 is installed on the liquid outlet part 6523, and the second temperature detector 671 is used to detect the liquid temperature in the inner cavity of the liquid outlet part 6523; the controller 661, the second temperature detector 671, the water pump 646, the water inlet valve 645 and the water outlet valve 643 are electrically connected.

[0037] The implementation principle of a flameless burner with flame cooling function in the embodiment of the present application is as follows: the gas is transported to the mixer 2 through the gas pipeline 22, and at the same time, the air is transported to the mixer 2 through the air pipeline 25. The mixed gas generated by the gas and air in the mixer 2 is evenly distributed through the uniform distributor 3, and then flows out along the metal fiber 4. Then, the gas is ignited through the igniter 5 to realize the gas ignition operation of the flameless burner. During the operation of the flameless burner, the water inlet valve 645 is adjusted, and the liquid at normal temperature is injected into the water cooling box 641 through the water inlet pipe 644. Under the action of the water cooler of the water cooling box 641, the water cooling box 641 is realized. 41, then, the water pump 646 is adjusted, and the liquid is transported along the water inlet coil 61 to the cooling water channel 62, the heat on the casing of the burner body 1 is transferred to the liquid in the cooling water channel 62, the liquid carrying the heat flows along the cooling water channel 62 to the water outlet coil 63, the liquid carrying the heat enters the inner cavity of the water cooling box 641 along the water outlet coil 63, and under the action of the booster pump 647, the liquid carrying the heat in the water outlet coil 63 is discharged along the water outlet coil 63 into the water spray hole 648 on the extension section of the water cooling box 641, thereby increasing the drainage pressure of the water outlet coil 63, and realizing the rapid mixing of the liquid carrying the heat and the cooling liquid in the water cooling box 641.

[0038] During the process of the liquid in the water cooling box 641 being transported to the water inlet coil 61, the first temperature detector 662 detects the liquid in the water cooling box 641. When the temperature of the liquid in the water cooling box 641 is higher than the preset temperature, the first temperature detector 662 transmits a signal to the controller 661. The controller 661 issues instructions to the control valve 655, the air cooling water inlet valve 653, the air cooling water outlet valve 654 and the exhaust valve 6563. The control valve 655 is closed. At the same time, the air cooling water inlet valve 653, the air cooling water outlet valve 654 and the exhaust valve 6563 are all opened. Under the action of the water pump 646, the liquid in the water cooling box 641 flows along the water inlet coil 61. The tube 61 flows into the liquid inlet portion 6521, and then flows into the coil portion 6522 along the liquid inlet portion 6521. During the flow of liquid in the coil portion 6522, the cold air generated by the cold air pipe 6561 cools the air in the inner cavity of the air-cooled box 651, and then cools the coil portion 6522 in the air-cooled box 651. In addition, the residual heat in the air-cooled box 651 is discharged along the exhaust pipe 6562 to achieve the cooling of the liquid in the coil portion 6522. The cooled liquid is transported to the liquid outlet portion 6523 along the coil portion 6522, and then transported to the water inlet coil 61 along the liquid outlet portion 6523, to achieve secondary cooling of the liquid with too high a temperature in the water inlet coil 61.

[0039] During the process of transporting the liquid in the liquid outlet 6523 to the water inlet coil 61, the second temperature detector 671 detects the liquid in the liquid outlet 6523. When the temperature of the liquid in the liquid outlet 6523 is higher than the preset temperature, the second temperature detector 671 transmits a signal to the controller 661. The controller 661 sends instructions to the water pump 646, the water inlet valve 645 and the water outlet valve 643. The water pump 646 is closed. At the same time, the water inlet valve 645 is closed and the water outlet valve 643 is opened. The liquid in the water cooling box 641 is discharged along the water outlet pipe 642, so that the liquid in the water cooling box 641 is discharged from the water cooling box 641. The liquid in the water cooling box 641 is completely discharged, and then the water inlet valve 645 is opened to re-inject normal temperature liquid into the water cooling box 641.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A flameless burner with flame cooling function, characterized in that: It comprises a burner body (1), a mixer (2), an igniter (5), metal fibers (4) and a cooling device (6); The burner body (1) is provided with a gas inlet (21) and an air inlet (24); The mixer (2) is mounted on the burner body (1), and the air inlet end of the mixer (2) is connected to a gas pipeline (22) and an air pipeline (25), the gas pipeline (22) passes through the gas inlet (21) and is connected to the mixer (2), and the air pipeline (25) passes through the air inlet (24) and is connected to the mixer (2); The metal fiber (4) is mounted on the burner body (1), and the metal fiber (4) is located directly above the mixer (2), and the mixed gas generated by the mixer (2) flows outward along the metal fiber (4); The igniter (5) is mounted on the metal fiber (4), and the igniter (5) is used for igniting the gas; The cooling device (6) comprises a water inlet coil (61), a water outlet coil (63) and a water cooling component (64); A cooling water channel (62) is provided on the casing of the burner body (1), the cooling water channel (62) is arranged around the outer periphery of the metal fiber (4), and the cooling water channel (62) is arranged in a spiral shape; the water inlet coil (61) is installed on the burner body (1), and the water outlet end of the water inlet coil (61) is connected to the water inlet end of the cooling water channel (62); the water inlet end of the water cooling component (64) is connected to the water outlet end of the water outlet coil (63), and the water outlet end of the water cooling component (64) is connected to the water inlet end of the water inlet coil (61); the water outlet coil (63) is installed on the burner body (1), and the water inlet end of the water outlet coil (63) is connected to the water outlet end of the cooling water channel (62); The water cooling component (64) is used for cooling the liquid at the water outlet end of the water outlet coil (63).

2. The flameless burner with flame cooling function according to claim 1, characterized in that: The water cooling assembly (64) comprises a water cooling box (641), a water outlet pipe (642), a water inlet pipe (644), a water outlet valve (643), a water inlet valve (645) and a water pump (646); The water cooling box (641) is installed on the burner body (1), and the water cooling box (641) is located directly below the mixer (2); The water outlet end of the water outlet coil (63) is connected to the water inlet end of the water cooling box (641), and the water inlet coil (61) and the water outlet coil (63) are distributed on opposite sides of the water cooling box (641), and the water inlet end of the water inlet coil (61) is connected to the water pump (646), and the water pump (646) is located in the water cooling box (641); The water inlet pipe (644) is fixedly connected to the side wall of the water cooling box (641), and the water inlet valve (645) is installed on the water inlet pipe (644); The water outlet pipe (642) is fixedly connected to the bottom wall of the water cooling box (641), and the water outlet valve (643) is installed on the water outlet pipe (642).

3. The flameless burner with flame cooling function according to claim 2, characterized in that: The water outlet end of the water outlet coil (63) is arranged close to the bottom wall of the water cooling box (641); and the water inlet end of the water inlet coil (61) is arranged close to the top of the water cooling box (641).

4. The flameless burner with flame cooling function according to claim 3, characterized in that: A booster pump (647) is installed on the extension section of the water outlet coil (63) extending into the water cooling box (641), and a plurality of water spray holes (648) are provided on the extension section of the water outlet coil (63) extending into the water cooling box (641), and the water spray holes (648) are arranged close to the water outlet end of the water outlet coil (63).

5. The flameless burner with flame cooling function according to claim 2, characterized in that: The cooling device (6) further comprises an air cooling component (65), wherein the air cooling component (65) comprises an air cooling box (651), an air cooling liquid discharge pipe (652), an air cooling water inlet valve (653), an air cooling water outlet valve (654), a control valve (655) and an air cooling component (656); The air-cooled liquid discharge pipe (652) comprises a liquid inlet portion (6521), a coil portion (6522) and a liquid outlet portion (6523) which are connected in sequence, the coil portion (6522) being located in the inner cavity of the air-cooled box (651), and the air-cooled box (651) being mounted on the burner body (1); the ends of the liquid inlet portion (6521) and the liquid outlet portion (6523) extending out of the air-cooled box (651) are both connected to the water inlet coil (61); The air-cooling water inlet valve (653) is installed on the extension section of the liquid inlet portion (6521) extending out of the air-cooling box (651), and the air-cooling water outlet valve (654) is installed on the extension section of the liquid outlet portion (6523) extending out of the air-cooling box (651); The control valve (655) is installed on the water outlet coil (63), and the control valve (655) is located between the liquid inlet (6521) and the liquid outlet (6523); The air cooling component (656) is installed on the burner body (1), and the air cooling component (656) is used for liquid cooling in the coil section (6522).

6. The flameless burner with flame cooling function according to claim 5, characterized in that: The air cooling component (656) includes an exhaust pipe (6562), an exhaust valve (6563) and a cold air pipe (6561); The cold air duct (6561) and the exhaust air duct (6562) are installed on opposite sides of the air cooling box (651), and the cold air duct (6561) and the exhaust air duct (6562) are both connected to the inner cavity of the air cooling box (651), and the coil part (6522) is located between the cold air duct (6561) and the exhaust air duct (6562); One end of the exhaust pipe (6562) passes through the burner body (1), and the exhaust valve (6563) is installed on the exhaust pipe (6562).

7. The flameless burner with flame cooling function according to claim 6, characterized in that: The cold air duct (6561) is provided in plurality.

8. The flameless burner with flame cooling function according to claim 6, characterized in that: The cooling device (6) further comprises a first water-cooled temperature control component (66), wherein the first water-cooled temperature control component (66) comprises a controller (661) and a first temperature detector (662); The controller (661) is installed on the burner body (1), the first temperature detector (662) is installed on the water cooling box (641), and the first temperature detector (662) is used to detect the liquid temperature in the water cooling box (641), and the controller (661), the first temperature detector (662), the air-cooled water inlet valve (653), the air-cooled water outlet valve (654), the exhaust valve (6563) and the control valve (655) are electrically connected.

9. The flameless burner with flame cooling function according to claim 8, characterized in that: The cooling device (6) further comprises a second water-cooled temperature control component (67), and the second water-cooled temperature control component (67) comprises a second temperature detector (671); The second temperature detector (671) is installed on the liquid outlet (6523), and the second temperature detector (671) is used to detect the temperature of the liquid in the inner cavity of the liquid outlet (6523); the controller (661), the second temperature detector (671), the water pump (646), the water inlet valve (645) and the water outlet valve (643) are electrically connected.

10. The flameless burner with flame cooling function according to claim 1, characterized in that: A distributor (3) is installed on the burner body (1), and the distributor (3) is located between the mixer (2) and the metal fiber (4). The mixed gas generated by the mixer (2) forms a high-speed airflow through the distributor (3).

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