A water steam heat carrier boiler with waste heat recovery

Abstract

The present invention provides a water vapor heat-carrying boiler for waste heat recovery, comprising a transversely arranged recovery cylinder, a tank cover detachably mounted on the end surfaces of both ends of the recovery cylinder, and a recovery mechanism arranged in a recovery chamber for recovering the waste heat of boiler tail gas, the recovery mechanism comprising a sealing disk which is sealed and arranged in the middle of the recovery chamber in a vertical direction and divides the recovery chamber into two equal-sized spaces, an air intake rod which is penetrated in the recovery chamber along the axial direction of the recovery cylinder and movably penetrates the middle of the sealing disk, two recovery pipes which are symmetrically arranged in the recovery chamber with respect to the sealing disk and have a multi-layer spiral structure and are sleeved on the rod bodies at both ends of the air intake rod, and a control component which is arranged on the recovery cylinder and controls the sealing disk to move in the recovery chamber toward the directions of the two recovery pipes respectively; the present invention can conveniently recover the waste heat of boiler tail gas, thereby improving the utilization rate of the thermal efficiency of the waste heat of boiler tail gas.

Description

Technical Field

[0001] The invention relates to the technical field of boiler waste heat recovery, and in particular to a water steam heat-carrying boiler with waste heat recovery. Background Art

[0002] A boiler is an energy conversion device. The energy input into the boiler includes chemical energy and electrical energy in the fuel. The boiler outputs steam, high-temperature water or organic carrier with a certain amount of thermal energy. Boilers are mainly divided into hot water boilers and steam boilers.

[0003] At present, during the high-temperature heating process of the boiler, a large amount of high-temperature water vapor will be generated in the heating furnace. The exhaust gas currently generated is directly discharged, or directly discharged after being treated in a sedimentation tank to precipitate some harmful substances. If it is not recycled, it will cause serious waste of waste heat resources, resulting in low utilization rate of the generated thermal efficiency and serious energy loss. Therefore, a waste heat recovery boiler flue is needed to meet people's needs. Summary of the invention

[0004] In view of the above technical problems, the present invention provides a water steam heat carrier boiler with waste heat recovery, which can conveniently recover the waste heat of boiler tail gas and improve the utilization rate of the thermal efficiency of the waste heat generated by the boiler tail gas.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a water steam heat-carrying boiler for waste heat recovery, comprising a horizontally arranged recovery cylinder, a tank cover detachably mounted on the end surfaces of both ends of the recovery cylinder, a recovery chamber enclosed by the recovery cylinder and the tank cover, and a recovery mechanism arranged in the recovery chamber for recovering the waste heat of boiler tail gas, the recovery mechanism comprising a sealing disk sealed in the recovery chamber along the vertical direction and dividing the recovery chamber into two spaces A and B, an air intake rod penetrating the recovery chamber along the axial direction of the recovery cylinder and movably passing through the center of the sealing disk, two recovery pipes symmetrically arranged in the recovery chamber about the sealing disk and sleeved on the rod body of the air intake rod, and a control component arranged on the recovery cylinder and controlling the sealing disk to move in the recovery chamber toward space A or space B respectively, wherein the recovery pipe has a multi-layer spiral structure; both ends of the air intake rod can intake air and are only connected to the space at the corresponding end, when the sealing disk moves toward space A, space B intakes air; when the sealing disk moves toward space B, space A intakes air.

[0006] Preferably, the recovery mechanism also includes an air intake assembly arranged on the two tank covers and injecting boiler exhaust gas into the rod body at both ends of the air intake rod. Ventilation grooves are provided on the end faces of both ends of the air intake rod, and the interior of the ventilation grooves is connected to the air intake assembly; the air intake rod is inserted into the recovery pipe and is provided with multiple air intake holes opened at equal intervals.

[0007] Preferably, the air intake assembly includes air intake blocks respectively fixedly arranged on the two tank cover end faces and respectively connected to the two ends of the air intake rod, a first sealing block arranged on the top inner wall of the air intake groove opened in the air intake block, two first sliding rods which are parallel to each other and respectively symmetrically arranged on the top inner wall of the air intake groove with respect to the first sealing block, a first sliding block which is movably sleeved on the rod bodies of different first sliding rods and respectively fixedly connected to the side faces of the first sealing blocks, and a first limiting spring which is movably sleeved on the rod body of the first sliding rod and whose two ends are respectively fixedly connected to the bottom end of the first sliding rod and the first sliding block, a first connecting hole is opened on the inner wall of the air intake groove at the position of the first sealing block, and the first connecting hole is connected to the boiler exhaust structure through an air intake pipe.

[0008] Preferably, the recovery mechanism also includes an air outlet assembly arranged on the tank body of the recovery cylinder, the air outlet assembly includes two air outlet pipes symmetrically arranged on the tank bodies at both ends of the recovery cylinder with respect to the sealing disk and connected to the interior of the recovery chamber, and a pressure control component arranged on the two air outlet pipes to control the air outlet.

[0009] Preferably, the pressure control component includes a control column which is fixedly mounted on the exhaust pipe rod body through a first through hole opened in the end face and has a control groove opened inside and communicates with the inside of the exhaust pipe, a second sealing block which is arranged in the control groove and is fitted on the opening position of the first through hole on one side of an adjacent recovery cylinder, two second sliding rods which are symmetrically arranged about the second sealing block and vertically fixed on the wall of the control groove, a second sliding block which is movably arranged on the rod bodies of the two second sliding rods and is respectively fixedly connected to the second sealing blocks, and a second limiting spring which is movably mounted on the rod body of each second sliding rod and has its two ends respectively fixedly connected to the bottom end of the second sliding rod and the second sliding block.

[0010] Preferably, the pressure control member further comprises two electromagnets which are sleeved on the rod body of each second slide bar and are respectively fixed on the end surface of the second slide bar and the bottom end of the second slide bar.

[0011] Preferably, the control component includes two control cylinders which are respectively fixed and vertically arranged on different end faces of the tank covers, the output ends of the two control cylinders are respectively movably arranged in the recovery chamber, and the output ends of the two control cylinders are respectively vertically fixed on the end faces of both ends of the sealing disk; the output ends of the control cylinders are arranged along the axial direction of the recovery cylinder.

[0012] Preferably, discharge pipes are provided on the bottom side of the recovery cylinder at left-right symmetrical positions with respect to the sealing disk, both discharge pipes are connected to the interior of the recovery chamber, and a valve is provided on the pipe body of each discharge pipe.

[0013] The beneficial effects of the present invention are as follows: the boiler exhaust gas is introduced into two equal-sized spaces in the recovery chamber separated by a sealing disk through the rod bodies at both ends of the air intake rod, and the sealing disks penetrating the recovery chamber are driven by the control component to move in the directions of the two recovery pipes respectively, so that the two equal-sized spaces injected into the recovery chamber separated by the sealing disks are moved and compressed, thereby increasing the pressure of the exhaust gas in the recovery chamber, accelerating the heat release efficiency of the liquefaction of water vapor in the exhaust gas, transferring the heat in the water vapor to the recovery pipe, recovering the waste heat of the water vapor, and improving the recovery efficiency of the waste heat of the boiler exhaust gas. The waste heat of the boiler exhaust gas can be recovered conveniently, and the utilization rate of the thermal efficiency of the waste heat generated by the boiler exhaust gas is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the simplified structure of a water steam heat carrier boiler for waste heat recovery proposed in the present invention.

[0016] Figure 2 This is a schematic diagram of the back structure of the water steam heat carrier boiler for waste heat recovery proposed by the present invention.

[0017] Figure 3 It is a schematic diagram of the internal structure of the recovery chamber of the present invention.

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the air intake block of the present invention.

[0019] Figure 5 It is a schematic diagram of the cross-sectional structure of the control column of the present invention.

[0020] Figure 6 It is a schematic diagram of the enlarged structure of point A of the present invention.

[0021] In the figure: 1. recovery cylinder; 2. tank cover; 3. air inlet pipe; 4. air inlet block; 5. air outlet pipe; 6. control column; 7. discharge pipe; 8. valve; 9. support frame; 10. control cylinder; 11. liquid inlet pipe; 12. liquid discharge pipe; 13. recovery chamber; 14. sealing plate; 15. recovery pipe; 16. air inlet rod; 17. air inlet hole; 18. air inlet groove; 19. first connecting hole; 20. first sealing block; 21. first slider; 22. first slide bar; 23. first limit spring; 24. first through hole; 25. second sealing block; 26. second slider; 27. second slide bar; 28. second limit spring. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0023] See also Figure 1-6 A water vapor heat carrier boiler for waste heat recovery comprises a horizontally arranged recovery cylinder 1, a tank cover 2 detachably mounted on the end surfaces of both ends of the recovery cylinder 1, a recovery chamber 13 enclosed by the recovery cylinder 1 and the tank cover 2, and a recovery mechanism arranged in the recovery chamber 13 for recovering the waste heat of the boiler tail gas. The recovery mechanism comprises a sealing disk 14 which is sealed and arranged in the recovery chamber 13 in the vertical direction and divides the recovery chamber 13 into two spaces A and B, an air intake rod 16 which is arranged in the recovery chamber 13 along the axial direction of the recovery cylinder 1 and movably passes through the center of the sealing disk 14, two recovery pipes 15 which are arranged in the recovery chamber 13 symmetrically about the sealing disk 14 and are sleeved on the rod body of the air intake rod 16, and a control component which is arranged on the recovery cylinder 1 and controls the sealing disk 14 to move in the recovery chamber 13 toward the two recovery pipes 15 respectively. The recovery pipe 15 has a multi-layer spiral structure. Both ends of the air intake rod 16 can intake air and are only connected to the space at the corresponding end. When the sealing disk 14 moves toward the space A, the space B intakes air; when the sealing disk 14 moves toward the space B, the space A intakes air.

[0024] The following is an example of the sealing disk 14 moving to space A first and space B taking in air to explain the working dynamics. The boiler exhaust gas first passes into space B through one end of the air intake rod 16, and the water vapor in the exhaust gas is directly sprayed onto the recovery pipe 15 located in space B, and contacts the surface of the recovery pipe 15, and the water vapor liquefies on the surface of the recovery pipe 15 and releases heat. Subsequently, the sealing disk 14 is driven to move toward space B through the control component, and space B is compressed, and the internal pressure increases, thereby accelerating the liquefaction and heat release of the water vapor in space B and accelerating the heat release efficiency of the water vapor; at the same time, the boiler exhaust gas passes into space A through the other end of the air intake rod 16, and the water vapor in the exhaust gas is directly sprayed onto the recovery pipe 15 located in space A, and contacts the surface of the recovery pipe 15, and the water vapor liquefies on the surface of the recovery pipe 15 and releases heat. The sealing disk reciprocates under the drive of the control component, compressing space A and space B in turn, while the other space is allowed to take in air, thereby facilitating the recovery and utilization of the waste heat from the boiler exhaust gas, conveniently recovering the waste heat from the boiler exhaust gas, and improving the utilization rate of the thermal efficiency of the waste heat from the boiler exhaust gas.

[0025] like Figure 3As shown, the recovery mechanism also includes an air intake assembly arranged on the two tank covers 2 and injecting boiler tail gas into the rod body at both ends of the air intake rod 16. Ventilation grooves are respectively provided at both ends of the air intake rod 16, and the venting grooves are connected to the air intake assembly. The air intake rod 16 is inserted into the recovery pipe 15 and has a plurality of air intake holes 17 connected to the venting grooves at equal intervals. The boiler tail gas is passed into the recovery chamber 13 through the two ends of the air intake rod 16, first enters the two venting grooves, and then is uniformly sprayed into the recovery pipe 15 through the air intake holes 17, contacts the surface of the recovery pipe 15, liquefies and releases heat on the surface of the recovery pipe 15, and transfers the heat released when the water vapor is liquefied to the recovery pipe 15. The recovery pipe 15 is made of a heat-conducting material (such as copper) to transfer the heat generated when the water vapor is liquefied to the recovery pipe 15, and then transfer it to the liquid transported in the recovery pipe 15 through the recovery pipe 15, so as to facilitate the subsequent recycling of the heated liquid, and cooperate with the control component to drive the sealing disk 14 to move in the recovery chamber 13, and pressurize the two spaces of the recovery chamber 13, so as to accelerate the liquefaction heat release efficiency of the water vapor.

[0026] like Figure 1-4 and Figure 6As shown, the air intake assembly includes an air intake block 4 fixedly arranged on the end surfaces of the two tank covers 2 and connected to the two ends of the air intake rod 16, an air intake groove 18 provided in the air intake block 4, a first sealing block 20 provided on the top inner wall of the air intake groove 18, two first slide bars 22 parallel to each other and vertically arranged on the top inner wall of the air intake groove 18 symmetrically about the first sealing block 20, a first slider 21 movably sleeved on the rod bodies of different first slide bars 22 and fixedly connected to the side surfaces of the first sealing block 20, and a first limit spring 23 movably sleeved on the rod bodies of the first slide bars 22 and fixedly connected to the bottom ends of the first slide bars 22 and the first slider 21 at both ends. A first connecting hole 19 is provided on the inner wall of the air intake groove 18 at the position of the first sealing block 20, and the first connecting hole 19 is connected to the boiler exhaust structure through the air intake pipe 3. During the process of the air intake pipe 3 passing the water vapor discharged from the boiler into the air intake block 4, the water vapor in the air intake pipe 3 first pushes the first sealing block 20 located at the opening position of the first connecting hole 19 to move into the air intake groove 18 through the first connecting hole 19, and the water vapor passes through the through hole opened on the side of the air intake groove 18 and is connected with the ventilation groove opened on the end face of the air intake pipe 3. When the water vapor is passed into the air intake groove 18, the first sealing block 20 moves downward, which will drive the second slider 26 arranged on the side of the first sealing block 20 to slide on the rod body of the second slide rod 27, and compress the second limit spring 28 on the rod body of the second slide rod 27, and then cooperate with the control component to drive the sealing disk 14 to move in the recovery chamber 13. When the sealing disk 14 moves toward one of the recovery tubes 15, the space of the recovery chamber 13 where the recovery tube 15 is located is pressurized, so that when the internal pressure of the air intake groove 18 in the air intake block 4 adjacent to the space of the recovery chamber 13 is greater than or equal to the internal pressure of the air intake pipe 3, the second limit spring 28 will drive the first sealing block 20 to move toward the opening position of the first connecting hole 19 under the action of elastic force, thereby sealing the opening position of the first connecting hole 19 through the first sealing block 20, and cooperating with the sealing disk 14 to compress the space of the recovery chamber 13, thereby accelerating the compression of water vapor in the space of the recovery chamber 13, and accelerating the liquefaction heat release efficiency of water vapor on the surface of the recovery tube 15.

[0027] In the process of introducing boiler water vapor into the recovery chamber 13 through the air inlet pipe 3, the sealing disc 14 is synchronously driven by the control component to circulate and reciprocate between the two recovery pipes 15. In the process of the sealing disc 14 moving in the recovery chamber 13, the recovery chamber 13 space on the left and right sides of the sealing disc 14 is compressed in turn, increasing its pressure, accelerating the liquefaction rate of water vapor in the recovery chamber 13 space on the compression side, thereby accelerating the heat release efficiency of water vapor liquefaction. During the reciprocating movement of the sealing disk 14 in the recovery chamber 13, the pressure of the air inlet groove 18 in the air inlet block 4 adjacent to the moving direction of the sealing disk 14 increases, so that the first sealing block 20 is tightly fitted on the opening position of the first connecting hole 19, thereby compressing the water vapor in the recovery chamber 13 through the sealing disk 14, and accelerating the efficiency of water vapor liquefaction and heat release; the space of the recovery chamber 13 located on the other side of the sealing disk 14 will increase accordingly, thereby reducing the pressure in the space of the recovery chamber 13, and the water vapor in the air inlet pipe 3 pushes the first sealing block 20 at the opening position of the first connecting hole 19 opened by the air inlet block 4 at one end of the recovery chamber 13 to move downward, and compresses the second limit spring 28, so that the water vapor can enter the recovery chamber 13 through the air inlet groove 18 and the air inlet hole 17 in turn. In short, when one space in the recovery chamber 13 is compressed to accelerate the liquefaction and heat release of water vapor, new boiler water vapor is injected into the other space of the recovery chamber 13, and then circulated back and forth in the recovery chamber 13 through the sealing disk 14, so that the boiler water vapor is continuously pressurized, liquefied and heat released, which can conveniently recover the waste heat of the boiler exhaust gas and improve the utilization rate of the thermal efficiency of the waste heat generated by the boiler exhaust gas.

[0028] The recovery mechanism also includes an air outlet assembly arranged on the tank body of the recovery cylinder 1, and the air outlet assembly includes two air outlet pipes 5 symmetrically arranged on the tank bodies at both ends of the recovery cylinder 1 about the sealing disk 14 and connected to the interior of the recovery chamber 13, and a pressure control component arranged on the two air outlet pipes 5 to control the air outlet.

[0029] The pressure control component includes a control column 6 which is fixedly sleeved on the rod body of the air outlet pipe 5 through a first through hole 24 opened on the end face and has a control groove opened inside and connected to the inside of the air outlet pipe 5, a second sealing block 25 which is arranged in the control groove and is fitted on the opening position of the first through hole 24 on the side adjacent to the recovery cylinder 1, two second sliding rods 27 which are symmetrically arranged about the second sealing block 25 and vertically fixed on the wall of the control groove, a second sliding block 26 which is movably arranged on the rod bodies of the two second sliding rods 27 and is respectively fixedly connected to the second sealing blocks 25, and a second limit spring 28 which is movably sleeved on the rod body of each second sliding rod 27 and has its two ends respectively fixedly connected to the bottom end of the second sliding rod 27 and the second sliding block 26.

[0030] like Figure 1-3 and Figure 5As shown, when the sealing disk 14 is driven by the control component to move in the recovery chamber 13 and one of the recovery chambers 13 spaces is compressed, and when the pressure is greater than the liquefaction pressure of water vapor, the second sealing block 25 at the opening position of the first through hole 24 provided on the control column 6 on the outlet pipe 5 penetrating the space of the recovery chamber 13 will move toward the control column 6, so that the compressed and liquefied water vapor gas is discharged from the recovery chamber 13 through the outlet pipe 5 provided on the control column 6, thereby continuously recovering the waste heat of the boiler exhaust gas.

[0031] The pressure control member also includes two electromagnets which are sleeved on the rod body of each second slide rod 27 and are respectively fixed on the end surface of the second slider 26 and the bottom end of the second slide rod 27 .

[0032] like Figure 5 As shown, by controlling the adjacent magnetic poles of the two electromagnets to be the same, the second sealing block 25 is pushed to fit the sealing position of the opening of the first through hole 24, thereby increasing the internal pressure of the recovery chamber 13 and accelerating the heat release efficiency of the water vapor liquefaction.

[0033] like Figure 1-3 As shown, the control component includes two control cylinders 10 respectively fixed and vertically arranged on the end faces of different tank covers 2, the output ends of the two control cylinders 10 are respectively movably arranged in the recovery chamber 13, and the output ends of the two control cylinders 10 are respectively vertically fixed on the end faces of the two ends of the sealing disk 14; the output ends of the control cylinders 10 are arranged along the axial direction of the recovery cylinder 1, wherein the sealing disk 14 is directly driven to move in the recovery chamber 13 by the output ends of the control cylinders 10, so as to facilitate the reciprocating compression of the two spaces in the recovery chamber 13 through the sealing disk 14, so as to facilitate the continuous recovery and utilization of the waste heat of the boiler exhaust gas.

[0034] Discharge pipes 7 are provided at left-right symmetrical positions on the bottom side of the recovery cylinder 1 with respect to the sealing disk 14 . Both discharge pipes 7 are connected to the interior of the recovery chamber 13 , and a valve 8 is provided on the body of each discharge pipe 7 .

[0035] like Figure 1-2 As shown, both ends of the recovery pipe 15 arranged in the recovery chamber 13 pass through the liquid inlet pipe 11 and the liquid discharge pipe 12 to pass through the recovery cylinder 1, so that after the liquid flowing through the recovery pipe 15 absorbs the heat of the water vapor, it is discharged through the liquid discharge pipe 12, which is convenient for recycling the heat in the liquid.

[0036] The recovery cylinder 1 is arranged on a support frame 9 .

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A steam heat-carrying boiler for waste heat recovery, comprising a recovery cylinder (1) arranged transversely, a tank cover (2) detachably mounted on the end surfaces of both ends of the recovery cylinder (1), a recovery chamber (13) enclosed by the recovery cylinder (1) and the tank cover (2), and a recovery mechanism arranged in the recovery chamber (13) for recovering the waste heat of boiler tail gas, characterized in that: The recovery mechanism comprises a sealing disk (14) which is sealedly arranged in a recovery chamber (13) along a vertical direction and divides the recovery chamber (13) into two spaces, A and B; an air intake rod (16) which is arranged in the recovery chamber (13) along the axial direction of the recovery cylinder (1) and movably passes through the center of the sealing disk (14); two recovery pipes (15) which are arranged in the recovery chamber (13) symmetrically with respect to the sealing disk (14) and sleeved on the rod body of the air intake rod (16); and a control component which is arranged on the recovery cylinder (1) and controls the sealing disk (14) to move in the recovery chamber (13) toward the direction of space A or space B, respectively, wherein the recovery pipe (15) is in a multi-layer spiral structure; both ends of the air intake rod (16) can intake air and are only connected to the space at the corresponding end; when the sealing disk (14) moves toward space A, air is taken into space B; when the sealing disk (14) moves toward space B, air is taken into space A.

2. The water steam heat carrier boiler for waste heat recovery according to claim 1, characterized in that: The recovery mechanism also includes an air intake assembly arranged on the two tank covers (2) and injecting boiler tail gas into both ends of an air intake rod (16); both ends of the air intake rod (16) are respectively provided with air vents, and the air vents are connected to the air intake assembly; the air intake rod (16) is inserted into the recovery pipe (15) and has a plurality of air intake holes (17) at equal intervals on its rod body which are connected to the air vents.

3. The water steam heat carrier boiler for waste heat recovery according to claim 2 is characterized in that: The air intake assembly comprises an air intake block (4) respectively fixedly arranged on the end surfaces of the two tank covers (2) and respectively connected to the two ends of the air intake rod (16), an air intake groove (18) provided in the air intake block (4), a first sealing block (20) provided on the inner wall at the top of the air intake groove (18), two first sliding bars (22) parallel to each other and respectively symmetrically arranged on the inner wall at the top of the air intake groove (18) with respect to the first sealing block (20), a first sliding block (21) movably sleeved on the rod bodies of different first sliding bars (22) and respectively fixedly connected to the side surfaces of the first sealing blocks (20), and a first limit spring (23) movably sleeved on the rod bodies of the first sliding bars (22) and respectively fixedly connected at both ends to the bottom end of the first sliding bar (22) and the first sliding block (21), and a first connecting hole (19) is provided on the inner wall of the air intake groove (18) at the position of the first sealing block (20), and the first connecting hole (19) is connected to the boiler exhaust structure through an air intake pipe (3).

4. The water steam heat carrier boiler for waste heat recovery according to claim 3 is characterized in that: The recovery mechanism also includes an air outlet assembly arranged on the body of the recovery cylinder (1), the air outlet assembly including two air outlet pipes (5) symmetrically arranged on the body of the recovery cylinder (1) at both ends with respect to the sealing disk (14) and communicating with the interior of the recovery chamber (13), and a pressure control member arranged on the two air outlet pipes (5) for controlling the air outlet.

5. The water steam heat carrier boiler for waste heat recovery according to claim 4 is characterized in that: The pressure control component comprises a control column (6) which is fixedly sleeved on the rod body of the air outlet pipe (5) through a first through hole (24) provided on the end surface and has a control groove provided inside thereof and is connected to the inside of the air outlet pipe (5); a second sealing block (25) which is arranged in the control groove and is fitted on the opening position of the first through hole (24) on one side of the adjacent recovery cylinder (1); two second sliding bars (27) which are symmetrically arranged about the second sealing block (25) and vertically fixedly arranged on the wall of the control groove; a second sliding block (26) which is movably arranged on the rod bodies of the two second sliding bars (27) and is respectively fixedly connected to the second sealing blocks (25); and a second limit spring (28) which is movably sleeved on the rod body of each second sliding bar (27) and has two ends respectively fixedly connected to the bottom end of the second sliding bar (27) and the second sliding block (26).

6. The water steam heat carrier boiler for waste heat recovery according to claim 5, characterized in that: The pressure control component also includes two electromagnets which are sleeved on the rod body of each second slide rod (27) and are respectively fixed on the end surface of the second slide block (26) and on the bottom end of the second slide rod (27).

7. The water steam heat carrier boiler for waste heat recovery according to claim 1, characterized in that: The control assembly comprises two control cylinders (10) respectively fixedly arranged vertically on the end surfaces of different tank covers (2); the output ends of the two control cylinders (10) are respectively movably arranged in the recovery chamber (13); and the output ends of the two control cylinders (10) are respectively fixedly arranged vertically on the end surfaces of both ends of the sealing disk (14); and the output ends of the control cylinders (10) are arranged along the axial direction of the recovery cylinder (1).

8. The water steam heat carrier boiler for waste heat recovery according to claim 1, characterized in that: Discharge pipes (7) are arranged at left-right symmetrical positions on the bottom side of the recovery cylinder (1) with respect to the sealing disk (14); both discharge pipes (7) are connected to the interior of the recovery chamber (13); and a valve (8) is arranged on the body of each discharge pipe (7).

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