A through-type evaporator with built-in condensation pipeline

Abstract

The present application discloses an evaporator with a through-type built-in condensation pipe, and relates to the field of boiler technology. The present application includes: a shell, an annular frame is provided inside, a plurality of burner nozzles are distributed in an annular manner on the annular frame, and an air supply assembly is provided. The device separates the condensation area from the evaporation area by means of an insulation cylinder and a layout design of a through-type exhaust pipe. When the device is in use, the plug round tube can be driven to rotate by a driving member, so as to draw high-temperature flue gas into the insulation cylinder, so that it can pass through the annular groove and the arc groove in turn, and fully contact with the annular box and the condensation plate, and condense quickly. At the same time, the condensed water condensed on the surface of the annular box and the condensation plate can be thrown out under the action of centrifugal force, and the contact time is short, and it is not easy to be corroded by the condensed water. In summary, the present application solves the problem in the prior art that condensed water can corrode the heat exchanger and the burner, and compared with the prior art, the condensation effect of the high-temperature flue gas is good, and the latent heat in the flue gas can be extracted to the maximum extent.

Description

Technical Field

[0001] The present application relates to the technical field of boilers, and in particular to an evaporator with a through-type built-in condensation pipe. Background Art

[0002] To solve the huge gap in natural gas for heating, we need to increase revenue on the one hand and reduce costs on the other. Reducing costs requires improving the efficiency of natural gas boilers to save natural gas.

[0003] At present, most natural gas boilers are atmospheric fire-grill burners plus copper heat exchanger structures. Flue gas flushes the heat exchanger from bottom to top. The design exhaust temperature of existing atmospheric boilers is mostly above 130°C. In order to ensure that the copper is not corroded by condensed water and the condensed water drips onto the burner when the boiler is shut down, thereby corroding the burner, the thermal efficiency of the boiler under rated load is less than 90%. In order to make full use of the energy of natural gas, when the exhaust temperature is lower than 46°C, the boiler efficiency can reach more than 103%, which will be accompanied by the generation of a large amount of condensed water. In order to avoid condensed water from corroding the heat exchanger and burner, the boiler structure needs to be redesigned. While solving the above problems, the condensation effect of the flue gas is improved to maximize the extraction of latent heat in the flue gas. To this end, the present application proposes an evaporator with a through-type built-in condensation pipe. Summary of the invention

[0004] The purpose of the present application is to solve the problem that most of the current natural gas boilers are atmospheric fire-grate burners plus copper heat exchanger structures, and the flue gas flushes the heat exchanger from bottom to top. The design exhaust gas temperature of existing atmospheric boilers is mostly above 130°C. In order to ensure that the copper is not corroded by condensed water and the condensed water drips onto the burner when the boiler is shut down, thereby corroding the burner, the thermal efficiency of the boiler under rated load is less than 90%. In order to make full use of the energy of natural gas, when the exhaust gas temperature is lower than 46°C, the boiler efficiency can reach more than 103%, which will be accompanied by the generation of a large amount of condensed water. In order to avoid condensed water from corroding the heat exchanger and burner, the boiler structure needs to be redesigned. While solving the above-mentioned problems, the condensation effect of the flue gas is improved to maximize the extraction of latent heat in the flue gas. The present application provides an evaporator with a through-type built-in condensation pipe.

[0005] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0006] A through-type evaporator with a built-in condensation pipeline, comprising:

[0007] The outer shell has an annular frame inside, on which a plurality of burner nozzles are distributed in an annular manner, and is equipped with an air supply assembly; the inner wall of the outer shell is constructed with an annular evaporation chamber, and is located in the output direction of the plurality of burner nozzles; a discharge pipe is installed on the annular evaporation chamber;

[0008] The heat-insulating cylinder is arranged inside the annular frame ring and connected to the inner bottom surface of the shell;

[0009] The smoke exhaust pipe penetrates the outer shell along the axis of the heat insulation cylinder. The bottom of the outer shell is provided with a box body. The top of the box body is provided with a water inlet, which is connected to the heat insulation cylinder.

[0010] A plugging round tube is coaxially arranged in the smoke exhaust pipe, a tube body is arranged in the plugging round tube, a connecting cover is fixedly connected in the smoke exhaust pipe, the tube body and the plugging round tube are both rotatably connected to the connecting cover, a liquid inlet pipe and a liquid outlet pipe are installed on the connecting cover, and are respectively connected to the tube body and the plugging round tube, the output end of the liquid outlet pipe is connected to the annular evaporation chamber, and a driving member is arranged on the smoke exhaust pipe to drive the plugging round tube to rotate;

[0011] Multiple guide plates are annular and linearly distributed on the outside of the smoke exhaust pipe. Multiple groups of condensation mechanisms are arranged on the outside of the plug circular tube and are arranged alternately with the multiple guide plates. The condensation mechanism includes an annular box connected to the inside of the plug circular tube. The bottom of the annular box is movably overlapped with the guide plate. The bottom of the annular box is constructed with an annular groove. Multiple arc grooves connected to the annular groove are distributed annularly on the outside of the annular box arc. Multiple condensation plates are arranged in the arc groove. A guide member is arranged in the smoke exhaust pipe. Condensed water at the multiple guide plates is introduced into the box body through the guide member.

[0012] Furthermore, a long tube and a short tube are installed in the annular box, and the two are distributed in a ring along the axis of the annular box. The long tube and the short tube are connected to the plug circular tube. A plurality of annular plates are linearly distributed on the inner wall of the plug circular tube. The inner side of the annular plate ring is connected to the outer side of the tube body, and the long tube and the short tube are separated by the annular plate.

[0013] Furthermore, the long tube and the short tube are parallel to each other, and the annular plate is provided with a plurality of first grooves and a plurality of second grooves on opposite sides thereof, and the long tube and the short tube are connected to the first groove and the second groove respectively.

[0014] Furthermore, the condensation plate is arc-shaped, and a plurality of arc-shaped convex strips are distributed on the inner side and the outer side of the arc of the condensation plate and the arc-shaped groove.

[0015] Furthermore, the guide plate is in the shape of a frustum, and the top surface of the annular box is parallel to the guide plate.

[0016] Furthermore, the driving member includes a first annular block connected to the plug circular tube, the first annular block is rotatably installed on the inner wall of the smoke exhaust pipe, a second annular block is rotatably installed on the outer side of the smoke exhaust pipe and is magnetically coupled to the first annular block, and a motor is installed on the top of the outer shell, and its output end is transmission connected to the second annular block through a gear assembly.

[0017] Furthermore, a plurality of blades are distributed in an annular shape on the outer side of the plug circular tube, and the ends of the plurality of blades are connected to the inner side of the first annular block ring.

[0018] Furthermore, a drainage box is provided at the bottom of the box body, and the box body is connected to the drainage box through a connecting pipe. Two connecting holes are distributed around the connecting pipe. A blocking column is movably provided in the connecting pipe. A buoyancy plate is provided on the outside of the connecting pipe and is connected to the blocking column. A drainage pipe is installed on the drainage box.

[0019] Furthermore, the guide member includes an arc-shaped plate buried in the inner wall of the smoke exhaust pipe, the arc-shaped plate has a channel from bottom to top, a plurality of through grooves are linearly distributed on the outer side of the arc-shaped plate, and correspond one-to-one to a plurality of guide plates, and a one-way conduction mechanism is provided on the arc-shaped plate to prevent smoke from passing through.

[0020] Furthermore, the one-way conduction mechanism includes a flexible sheet obliquely arranged in the channel, the top end of the flexible sheet is connected to the inner wall of the channel through a mounting plate, there are multiple flexible sheets in a linear array along the length direction of the channel, and they are arranged alternately with multiple through grooves, and the bottom end of the arc plate is located in the box body.

[0021] The beneficial effects of this application are as follows:

[0022] The device separates the condensation area from the evaporation area through an insulating cylinder and a layout design of a through-type smoke exhaust pipe, so that the two are not easily affected by each other. When the device is in use, the driving member can drive the plug round tube to rotate, so as to draw the high-temperature flue gas into the insulating cylinder, so that it can pass through the annular groove and the arc groove in turn, and fully contact with the annular box and the condensation plate, and be quickly condensed. At the same time, the condensed water condensed on the surface of the annular box and the condensation plate can be thrown out under the action of centrifugal force, with a short contact time, and is not easily corroded by the condensed water. In summary, the present application solves the problem in the prior art that condensed water can corrode the heat exchanger and the burner, and compared with the prior art, the condensation effect on the high-temperature flue gas is good, and the latent heat in the flue gas can be extracted to the maximum extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural diagram of this application;

[0024] Figure 2 This application Figure 1 A partial structural cross-sectional view;

[0025] Figure 3 This application Figure 2 A magnified image of point A;

[0026] Figure 4 This is a cross-sectional view of the internal structure of the smoke exhaust pipe of the present application;

[0027] Figure 5 This application Figure 4 The enlarged view of point B;

[0028] Figure 6 This is a cross-sectional view of the internal structure of the circular tube of the plug of the present application;

[0029] Figure 7 It is a cross-sectional view of the internal structure of the curved plate of the present application;

[0030] Figure 8 This is a partial structural cross-sectional view of the ring box of the present application;

[0031] Fig. 9 This is a bottom view of the structure of the ring box of the present application;

[0032] Fig.10 It is a half-section schematic diagram of the box structure of the present application;

[0033] Figure numerals: 1, housing; 2, annular frame; 3, burner nozzle; 4, air supply assembly; 401, annular bellows; 402, fan; 403, air outlet pipe; 5, annular evaporation chamber; 6, discharge pipe; 7, insulation cylinder; 8, smoke exhaust pipe; 9, box body; 10, water inlet; 11, plug round pipe; 12, pipe body; 13, liquid inlet pipe; 14, liquid outlet pipe; 15, guide plate; 16, condensation mechanism; 1601, annular box; 1602, annular groove; 1603, arc groove; 1604, condensation plate; 1605, connecting cover; 1606, driving member; 16061, first annular block; 16062, second annular block; 16063, motor; 16064, gear assembly; 1607, flow guide; 16071, arc plate; 16072, channel; 16073, through groove; 16074, one-way conduction mechanism; 160741, flexible sheet; 160742, mounting plate; 17, long tube; 18, short tube; 19, annular plate; 20, first groove; 21, second groove; 22, arc convex strip; 23, blade; 24, drainage box; 25, connecting pipe; 26, connecting hole; 27, blocking column; 28, buoyancy plate; 29, drainage pipe; 30, thermal fin. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0035] like Figure 1-Figure 10 As shown, an evaporator with a through-type built-in condensing pipe proposed in one embodiment of the present application includes:

[0036] The outer shell 1 is provided with an annular frame 2, which is located on the inner bottom surface of the outer shell 1, and the outer side of the ring is close to the inner wall of the outer shell 1. A plurality of burner nozzles 3 are distributed in an annular manner on the annular frame 2, which are specifically natural gas burner nozzles 3, and are equipped with an air supply component 4. The air supply component 4 specifically includes an annular bellows 401 installed on the outer side of the outer shell 1, and a fan 402 is installed on the annular bellows 401. When the fan 402 is working, the outside air can enter the annular bellows 401 in the machine, and an air outlet pipe 403 is connected to the annular bellows 401 and discharged from the air outlet pipe 403. The number of the air outlet pipes 403 is the same as that of the burner nozzles 3, and the burner nozzles 3 are respectively located in the air outlet direction of the air outlet pipes 403. Such a design effectively guides the air to the burner nozzles 3, thereby optimizing the combustion. The combustion efficiency is improved, the energy utilization rate is improved, and the stability and safety of the combustion process are also guaranteed. The inner wall of the shell 1 is constructed with an annular evaporation chamber 5, and is located in the output direction of multiple burner nozzles 3. The outer side of the annular evaporation chamber 5 is constructed with heat-conducting fins 30, and the heat-conducting fins 30 are arranged vertically. Such a design can significantly enhance the heat transfer efficiency by increasing the heating area, so that the heat can be transferred to the annular evaporation chamber 5 more evenly and quickly, thereby effectively improving the uniformity and efficiency of heating, reducing local overheating, ensuring that the temperature in the entire annular evaporation chamber 5 is more uniform and stable, and improving the working efficiency and safety of the equipment. A discharge pipe 6 is installed on the annular evaporation chamber 5, and the annular evaporation chamber 5 is made of stainless steel with good thermal conductivity;

[0037] The heat-insulating cylinder 7 is arranged inside the annular frame 2 and connected to the inner bottom surface of the outer shell 1. Figure 2 As shown, the heat-insulating cylinder 7 extends toward the top surface of the shell 1, and the annular evaporation chamber 5 is located outside the heat-insulating cylinder 7, thereby dividing an annular heating chamber in the shell 1. When the burner nozzle 3 is ignited, the air supply assembly 4 operates synchronously, so that the annular evaporation chamber 5 and the heat-conducting fins 30 can be heated in the heating chamber. The design of the heat-insulating cylinder 7 can make the heat in the heating chamber more concentrated. During the continuous combustion of natural gas, the high-temperature flue gas generated can enter the heat-insulating cylinder 7 from the top of the shell 1;

[0038] The exhaust pipe 8 and the insulation tube 7 are both made of ceramic material and have heat insulation performance. They penetrate the shell 1 along the axis of the insulation tube 7. The direction of the exhaust pipe 8 and the insulation tube 7 are opposite to each other, that is, the end of the exhaust pipe 8 is close to the inner bottom surface of the shell 1, and the smoke can move in the insulation tube 7 and enter the end of the exhaust pipe 8. A box body 9 is provided at the bottom of the shell 1, and a water inlet 10 is configured at the top of the box body 9. The water inlet 10 is connected to the insulation tube 7 and is located directly below the exhaust pipe 8.

[0039] The plugging round tube 11 is coaxially arranged in the exhaust pipe 8, and one end of the plugging round tube 11 is blocked close to the water inlet 10. A pipe body 12 is arranged in the plugging round tube 11, and the pipe body 12 is coaxially arranged with the plugging round tube 11. Figure 6As shown, there is a spacing between the end of the tube body 12 and the blocked end of the plug circular tube 11, a connecting cover 1605 is fixedly connected in the exhaust pipe 8, the tube body 12 and the plug circular tube 11 are both rotatably connected to the connecting cover 1605, a liquid inlet pipe 13 and a liquid outlet pipe 14 are installed on the connecting cover 1605, and are respectively connected with the ends of the tube body 12 and the plug circular tube 11, and the output end of the liquid outlet pipe 14 is connected with the annular evaporation chamber 5, water enters the end of the tube body 12 through the liquid inlet pipe 13, and enters the plug circular tube 11 from the end of the tube body 12, and moves toward the end of the plug circular tube 11, and is discharged from the liquid outlet pipe 14, such a design can take away the heat on the plug circular tube 11 through the flowing water, and then the water that absorbs the heat and has a rising temperature can enter the annular evaporation chamber 5 for heating, and a driving member 1606 is provided on the exhaust pipe 8 for driving the plug circular tube 11 to rotate;

[0040] A plurality of guide plates 15 are annular and linearly distributed on the outside of the exhaust pipe 8. A plurality of condensation mechanisms 16 are arranged on the outside of the plug circular pipe 11, and are arranged staggered with the plurality of guide plates 15. By adopting the staggered arrangement of the guide plates 15 and the condensation mechanisms 16, the passage time of the smoke through the exhaust pipe 8 can be increased. The condensation mechanism 16 includes an annular box 1601 connected to the inside of the plug circular pipe 11. The annular box 1601 is located on the outside of the plug circular pipe 11. Figure 4 As shown, there is a gap between its outer side and the inner wall of the smoke exhaust pipe 8. When the water passes through the plug round tube 11, it can enter the annular box 1601. The bottom of the annular box 1601 is movably overlapped with the guide plate 15. There is a certain gap between the annular box 1601 and the guide plate 15 on its top, so as to pass the smoke. Fig. 9As shown, the annular box 1601 is structured with an annular groove 1602 at the bottom, and the annular groove 1602 is coaxially arranged with the annular box 1601. The inner side of the guide plate 15 is coplanar with the outer side of the annular groove 1602. A plurality of arc grooves 1603 connected with the annular groove 1602 are distributed in an annular manner on the arc outer side of the annular box 1601. The bottom of the annular box 1601 cooperates with the guide plate 15 to form a structure similar to an impeller. A plurality of condensation plates 1604 are arranged in the arc groove 1603. Both the condensation plates 1604 and the annular box 1601 are made of copper. When the driving member 1606 drives the plug round tube 11 to drive the annular box 1601 to rotate, the gas in the arc groove 1603 can be thrown out under the action of centrifugal force, and negative pressure is formed at the annular groove 1602, and high-temperature flue gas is inhaled. Specific description is required here. It is explained that when the flue gas entering the arc groove 1603 contacts the inner wall of the arc groove 1603 and the condensation plate 1604, it moves in an arc shape under the action of centrifugal force, and will not directly bypass the condensation plate 1604, and will fully contact the condensation plate 1604. Through multiple sets of condensation mechanisms 16 and multiple guide plates 15, the high-temperature flue gas can be quickly condensed in the narrow space inside the smoke exhaust pipe 8, and the latent heat in the flue gas can be extracted. The generated condensed water can be thrown to the inner wall of the smoke exhaust pipe 8 under the action of centrifugal force and gathered at the guide plate 15. The condensed water is not easy to adhere to the condensation plate 1604 and the annular box 1601 for a long time, so it is not easy to corrode them. The smoke exhaust pipe 8 is provided with a guide member 1607, and the condensed water at the multiple guide plates 15 is introduced into the box body 9 through the guide member 1607;

[0041] When in use, multiple burner nozzles 3 spray natural gas and ignite, and the fan 402 operates synchronously. The fan 402 guides the air into the outer shell 1 through the annular bellows 401 and the air outlet pipe 403 to provide oxygen for the continuous combustion of the natural gas, and thereby continuously heats the annular evaporation chamber 5. The structure here is similar to a hot water boiler, and the discharge pipe 6 can be called a hot water pipe. The high-temperature flue gas generated by the continuous combustion of natural gas can enter the insulation tube 7 from the top of the outer shell 1. At this time, the flue gas flowing in the insulation tube 7 will enter the end of the exhaust pipe 8. At this time, the driving member 1606 drives the plug round tube 11 to rotate, and the gas in the arc groove 1603 in the annular box 1601 can be thrown out under the action of centrifugal force, and negative pressure is formed at the annular groove 1602, and sucks The high-temperature flue gas in the heat-insulating tube 7 moves in an arc shape under the action of centrifugal force and is in full contact with the annular box 1601 and the condensation plate 1604. When the high-temperature flue gas passes through a plurality of staggered guide plates 15 and condensation mechanisms 16 from bottom to top, the high-temperature flue gas can be quickly condensed in the narrow space inside the exhaust pipe 8, and the latent heat in the flue gas can be extracted. The generated condensed water can be introduced into the box body 9 from the plurality of guide plates 15 through the guide member 1607, and the water entering the tube body 12 from the liquid inlet pipe 13 can flow to the end of the tube body 12 and enter the plug circular tube 11. When the water flows toward the end of the plug circular tube 11, it can take away the heat on the plug circular tube 11 and enter the annular evaporation chamber 5 through the liquid outlet pipe 14;

[0042] The present device separates the condensation area from the evaporation area through the insulating tube 7 and the layout design of the through-type smoke exhaust pipe 8, so that the two are not easily affected by each other. When the device is in use, the driving member 1606 can be used to drive the plug round tube 11 to rotate, so as to draw the high-temperature flue gas into the insulating tube 7, so that it can pass through the annular groove 1602 and the arc groove 1603 in turn, and fully contact with the annular box 1601 and the condensation plate 1604, and quickly condense. At the same time, the condensed water condensed on the surface of the annular box 1601 and the condensation plate 1604 can be thrown out under the action of centrifugal force, with a short contact time, and is not easily corroded by the condensed water. In summary, the present application solves the problem in the prior art that condensed water can corrode the heat exchanger and the burner, and compared with the prior art, the condensation effect on the high-temperature flue gas is good, and the latent heat in the flue gas can be maximized.

[0043] like Figure 6 and Figure 8As shown, in some embodiments, a long tube 17 and a short tube 18 are installed in the annular box 1601. The long tube 17 is used for water inlet and the short tube 18 is used for water outlet. The two are distributed in an annular manner along the axis of the annular box 1601. The long tube 17 and the short tube 18 are both connected to the plug circular tube 11. A plurality of annular plates 19 are linearly distributed on the inner wall of the plug circular tube 11. The plurality of annular plates 19 correspond one to one to the plurality of annular boxes 1601. The inner side of the annular plate 19 is connected to the outer side of the tube body 12. The plug circular tube 11 is divided into a plurality of small sections by the plurality of annular plates 19, and the long tube 17 and the short tube 18 are separated by the annular plates 19. The plurality of small sections are connected to each other through the long tube 17, the annular box 1601 and the short tube 18. Such a design can drive the water in the annular box 1601 to flow rapidly when water passes through the plug circular tube 11, thereby facilitating cooling of the annular box 1601.

[0044] like Figure 6 and Figure 8 As shown, in some embodiments, the long tube 17 and the short tube 18 are parallel to each other, and a plurality of first grooves 20 and a second groove 21 are respectively provided on the opposite sides of the annular plate 19, and the plurality of first grooves 20 and the plurality of second grooves 21 are distributed in an annular staggered manner, and the long tube 17 and the short tube 18 are respectively connected to the first groove 20 and the second groove 21. Such a design makes the long tube 17 and the short tube 18 fit the structure of the annular box 1601 more closely, and makes the structure of the annular box 1601 more compact, thereby increasing the number of annular boxes 1601 arranged in the smoke exhaust pipe 8.

[0045] like Figure 8 and Fig. 9 As shown, in some embodiments, the condensation plate 1604 is arc-shaped, and a plurality of arc-shaped ridges 22 are distributed on the arc inner side and arc outer side of the condensation plate 1604 and the arc-shaped groove 1603. When the flue gas in the arc-shaped groove 1603 moves in an arc shape under the action of centrifugal force, it can fully contact the condensation plate 1604 and the arc-shaped groove 1603. Through the design of the arc-shaped ridges 22, the contact area between the condensation plate 1604 and the arc inner side of the arc-shaped groove 1603 can be increased to improve its condensation effect on the flue gas.

[0046] like Figure 4 and Figure 8 As shown, in some embodiments, the guide plate 15 is in the shape of a frustum tube, the outer diameter of the bottom end of the guide plate 15 is relatively large, and is connected to the inner wall of the smoke exhaust pipe 8, and the top surface of the annular box 1601 is parallel to the guide plate 15. Such a design, on the one hand, allows the flue gas in the arc groove 1603 to move in an arc shape under the action of centrifugal force, and can also fully contact the top surface of the arc groove 1603, thereby further improving the condensation effect of the flue gas. On the other hand, it makes it difficult for the thrown condensed water body to contact the rotating annular box 1601 again.

[0047] like Figure 2 and Figure 3As shown, in some embodiments, the driving member 1606 includes a first annular block 16061 connected to the plug round tube 11, the first annular block 16061 is rotatably mounted on the inner wall of the exhaust pipe 8, the inner side of the first annular block 16061 is coplanar with the inner wall of the exhaust pipe 8, and a second annular block 16062 is rotatably mounted on the outer side of the exhaust pipe 8 and is magnetically coupled to the first annular block 16061, and magnets are distributed annularly on the opposite sides of the first annular block 16061 and the second annular block 16062, and the top of the housing 1 is provided with a plurality of magnets. A motor 16063 is installed, and its output end is connected to the second annular block 16062 through a gear assembly 16064. The gear assembly 16064 includes a gear ring constructed on the second annular block 16062. A gear meshing with the motor 16063 is installed at the output end of the motor 16063. When the motor 16063 is working, the second annular block 16062 can be driven to rotate, and the first annular block 16061 can be driven to rotate. By adopting such a design, the plug tube 11 can be driven to rotate in a non-contact manner.

[0048] like Figure 3 As shown, in some embodiments, a plurality of blades 23 are distributed in a ring on the outer side of the plug circular tube 11, and the ends of the plurality of blades 23 are connected to the inner side of the first annular block 16061. The structure here is similar to the fan blades 23, that is, when the smoke in the smoke exhaust pipe 8 passes through the plurality of blades 23, a rotational force can be applied to the plug circular tube 11, and the rotational force is consistent with the rotation direction of the second annular block 16062, thereby improving the connection stability between the first annular block 16061 and the second annular block 16062.

[0049] like Figure 1 and Fig.10 As shown, in some embodiments, a drainage box 24 is provided at the bottom of the box body 9, and the box body 9 is connected to the drainage box 24 through a connecting pipe 25. Condensed water entering the box body 9 can enter the drainage box 24 through the connecting pipe 25. Two connecting holes 26 are distributed around the connecting pipe 25. The connecting hole 26 is close to the bottom of the box body 9. A blocking column 27 is movably provided in the connecting pipe 25. A buoyancy plate 28 is provided on the outside of the connecting pipe 25 and is connected to the blocking column 27. When the water level in the drainage box 24 rises, the buoyancy plate 28 floats up accordingly, pushing the blocking column 27 to move, so that the two connecting holes 26 of the connecting pipe 25 are opened. The water in the box body 9 flows into the connecting pipe 25 through the connecting hole 26, and enters the drainage box 24 from the connecting pipe 25. When the water level in the box body 9 drops, the buoyancy plate 28 sinks, and the blocking column 27 returns to its original position, blocking the connecting hole 26, preventing water from flowing from the box body 9 to the drainage box 24. At this time, the water overflows the two connecting holes 26. A drain pipe 29 is installed on the drainage box 24, and the water entering the drainage box 24 can be discharged through the drain pipe 29. Such a design can automatically discharge the condensed water in the box body 9 when the device is working, and during the discharge process, the smoke will not enter the drainage box 24 through the box body 9.

[0050] like Figure 2 , Figure 4 and Figure 7 As shown, in some embodiments, the guide member 1607 includes an arc plate 16071 buried in the inner wall of the smoke exhaust pipe 8, the arc plate 16071 extends along the length direction of the smoke exhaust pipe 8, and the arc plate 16071 is provided with a channel 16072 from bottom to top. A plurality of through grooves 16073 are linearly distributed on the outer side of the arc plate 16071, and correspond one by one to the plurality of guide plates 15. The through grooves 16073 are located at the angle between the guide plate 15 and the arc plate 16071. Condensed water on the top of the guide plate 15 can enter the channel 16072 through the through grooves 16073 and be discharged from the bottom of the channel 16072. A one-way guide mechanism 16074 is provided on the arc plate 16071 to prevent smoke from passing through, thereby preventing smoke from passing through the channel 16072 from bottom to top.

[0051] like Figure 2 and Figure 7 As shown, in some embodiments, the one-way conduction mechanism 16074 includes a flexible sheet 160741 obliquely arranged in the channel 16072, the flexible sheet 160741 is a silicone sheet, the top of the flexible sheet 160741 is connected to the inner wall of the channel 16072 through the mounting plate 160742, and under the effect of the toughness of the flexible sheet 160741, the movable end of the flexible sheet 160741 will abut against the inner wall on the other side of the channel 16072, and there are multiple flexible sheets 160741 in a linear array along the length direction of the channel 16072, and they are intersected with the multiple through grooves 16073. The flexible sheet 160741 is staggered in arrangement. When water enters the channel 16072 through the groove 16073 and applies pressure to the top of the flexible sheet 160741, the flexible sheet 160741 is deformed downward and the water passes through. When the smoke enters the channel 16072 through the groove 16073, the flexible sheet 160741 is pushed upward so that the end of the flexible sheet 160741 contacts the inner wall of the channel 16072, thereby preventing the smoke from passing through. The bottom end of the arc plate 16071 is located in the box body 9. When the blocking column 27 blocks the connecting hole 26, the bottom end of the arc plate 16071 is flooded by water and the smoke cannot enter.

[0052] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A through-type evaporator with a built-in condensation pipe, characterized in that: include: A shell (1), wherein an annular frame (2) is provided inside the shell (1), a plurality of burner nozzles (3) are distributed in an annular manner on the annular frame (2), and an air supply assembly (4) is provided; an annular evaporation chamber (5) is constructed on the inner wall of the shell (1) and is located in the output direction of the plurality of burner nozzles (3); and a discharge pipe (6) is installed on the annular evaporation chamber (5); The heat-insulating cylinder (7) is arranged on the inner side of the annular frame (2) and is connected to the inner bottom surface of the outer shell (1); A smoke exhaust pipe (8) passes through the outer shell (1) along the axis of the heat-insulating cylinder (7); a box body (9) is provided at the bottom of the outer shell (1); a water inlet (10) is configured at the top of the box body (9); and the water inlet (10) is connected to the heat-insulating cylinder (7); A plugging circular tube (11) is coaxially arranged in the smoke exhaust pipe (8), a tube body (12) is arranged in the plugging circular tube (11), a connecting cover (1605) is fixedly connected in the smoke exhaust pipe (8), the tube body (12) and the plugging circular tube (11) are both rotatably connected to the connecting cover (1605), a liquid inlet pipe (13) and a liquid outlet pipe (14) are installed on the connecting cover (1605), and are respectively connected to the tube body (12) and the plugging circular tube (11), the output end of the liquid outlet pipe (14) is connected to the annular evaporation chamber (5), and a driving member (1606) is provided on the smoke exhaust pipe (8) for driving the plugging circular tube (11) to rotate; A plurality of guide plates (15) are all annular and linearly distributed on the outside of the smoke exhaust pipe (8); a plurality of groups of condensation mechanisms (16) are arranged on the outside of the plug circular pipe (11) and are arranged alternately with the plurality of guide plates (15); the condensation mechanism (16) comprises an annular box (1601) connected to the inside of the plug circular pipe (11); the bottom of the annular box (1601) is movably overlapped with the guide plates (15); the bottom of the annular box (1601) is structured with an annular groove (1602); a plurality of arc-shaped grooves (1603) connected to the annular groove (1602) are distributed annularly on the outer side of the arc of the annular box (1601); a plurality of condensation plates (1604) are arranged in the arc-shaped grooves (1603); a guide member (1607) is arranged in the smoke exhaust pipe (8); condensed water at the plurality of guide plates (15) is introduced into the box body (9) through the guide member (1607).

2. The through-type evaporator with built-in condensation pipe according to claim 1, characterized in that: A long tube (17) and a short tube (18) are installed in the annular box (1601), and the two are distributed in an annular shape along the axis of the annular box (1601). The long tube (17) and the short tube (18) are both connected to the plug circular tube (11). A plurality of annular plates (19) are linearly distributed on the inner wall of the plug circular tube (11). The inner side of the annular plate (19) is connected to the outer side of the tube body (12), and the long tube (17) and the short tube (18) are separated by the annular plate (19).

3. The through-type evaporator with built-in condensation pipe according to claim 2, characterized in that: The long tube (17) and the short tube (18) are parallel to each other, and a plurality of first grooves (20) and second grooves (21) are respectively provided on opposite sides of the annular plate (19), and the long tube (17) and the short tube (18) are respectively connected to the first grooves (20) and the second grooves (21).

4. The through-type evaporator with built-in condensation pipe according to claim 2, characterized in that: The condensation plate (1604) is arc-shaped, and a plurality of arc-shaped convex strips (22) are distributed on the inner and outer sides of the arc of the condensation plate (1604) and the arc-shaped groove (1603).

5. The through-type evaporator with built-in condensation pipe according to claim 4, characterized in that: The guide plate (15) is in the shape of a frustum, and the top surface of the annular box (1601) is parallel to the guide plate (15).

6. The through-type evaporator with built-in condensation pipe according to claim 1, characterized in that: The driving member (1606) comprises a first annular block (16061) connected to the plug circular tube (11); the first annular block (16061) is rotatably mounted on the inner wall of the smoke exhaust pipe (8); a second annular block (16062) is rotatably mounted on the outer side of the smoke exhaust pipe (8) and is magnetically coupled to the first annular block (16061); a motor (16063) is mounted on the top of the housing (1); an output end of the motor is transmission-connected to the second annular block (16062) via a gear assembly (16064).

7. The through-type evaporator with built-in condensation pipe according to claim 6, characterized in that: A plurality of blades (23) are distributed in an annular manner on the outer side of the plug circular tube (11), and the ends of the plurality of blades (23) are connected to the inner side of the first annular block (16061).

8. The through-type evaporator with built-in condensation pipe according to claim 1, characterized in that: A drainage box (24) is provided at the bottom of the box body (9), and the box body (9) is connected to the drainage box (24) via a connecting pipe (25). Two connecting holes (26) are distributed around the connecting pipe (25). A blocking column (27) is movably provided in the connecting pipe (25). A buoyancy plate (28) is provided on the outside of the connecting pipe (25) and is connected to the blocking column (27). A drainage pipe (29) is installed on the drainage box (24).

9. The through-type evaporator with built-in condensation pipe according to claim 5, characterized in that: The guide member (1607) comprises an arc-shaped plate (16071) buried in the inner wall of the smoke exhaust pipe (8); the arc-shaped plate (16071) is provided with a channel (16072) from bottom to top; a plurality of through grooves (16073) are linearly distributed on the outer side of the arc-shaped plate (16071) and correspond one-to-one to the plurality of guide plates (15); and a one-way guide mechanism (16074) is provided on the arc-shaped plate (16071) to prevent smoke from passing through.

10. The through-type evaporator with built-in condensation pipe according to claim 9, characterized in that: The one-way conduction mechanism (16074) comprises a flexible sheet (160741) obliquely arranged in the channel (16072); the top end of the flexible sheet (160741) is connected to the inner wall of the channel (16072) via a mounting plate (160742); a plurality of flexible sheets (160741) are arranged in a linear array along the length direction of the channel (16072) and are arranged in an alternating manner with the plurality of through grooves (16073); and the bottom end of the arc plate (16071) is located in the box body (9).

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