Hazardous waste incineration waste heat power generation system

Abstract

The invention relates to the technical field of waste heat utilization, in particular to a hazardous waste incineration waste heat power generation system which comprises a shell, an air bag and a power generation unit and further comprises a drainage pipe, a water pump, a lower flow pipe, a flow guide pipe, an upper flow pipe, a heat exchange pipe, a flow adjusting assembly and a constant pressure assembly. The lower flow pipe is connected to the other end of the drainage pipe, the flow guide pipe array is connected to the lower side of the air bag, the multiple upper flow pipes are connected with the multiple flow guide pipes correspondingly, the heat exchange pipe array is connected to the lower sides of the upper flow pipes, the flow adjusting assembly is connected with the heat exchange pipes, and the constant pressure assembly is connected with the flow adjusting assembly. A water inlet is formed in the lower side of the heat exchange pipe, a water outlet is formed in the upper side of the heat exchange pipe, the flow of water flow at the water inlet and the water outlet in the heat exchange pipe is changed, then the pipeline is twisted within a limited range, and then the purpose of removing acidic condensate water is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of waste heat utilization, and in particular to a hazardous waste incineration waste heat power generation system. Background Art

[0002] Hazardous waste is the abbreviation of hazardous waste, which refers to solid waste that meets the categories listed in the national hazardous waste list or is identified as having hazardous characteristics according to the identification methods prescribed by the state. By incinerating hazardous waste with an incinerator, some components in the hazardous waste can be decomposed to reduce the degree of harm to the environment caused by hazardous waste. At the same time, the high temperature generated when burning hazardous waste can also be used to generate electricity to improve economic benefits. In order to improve the utilization rate of heat generated when burning hazardous waste, the heat in the flue gas generated when burning hazardous waste will be used. Since the temperature of hazardous waste during combustion is higher than 850℃, the temperature of the discharged flue gas is relatively high, and the temperature of dioxins generated in hazardous waste is between 200℃ and 500℃. There is a certain temperature difference between the temperature of flue gas when it is directly discharged and the temperature of dioxins generated. Therefore, part of the heat can be absorbed and utilized by the waste heat boiler to reduce it to 500℃, and then treated by the condensation tower to reduce the temperature of the flue gas to below 200℃ to reduce the generation of dioxins. In order to improve the thermal utilization efficiency of flue gas, some factories will set up a waste heat boiler after the flue gas is treated by the condensation tower to further recover the waste heat.

[0003] The working principle of the waste heat boiler is to set up multiple vertical pipes, with water flowing from bottom to top, and high-temperature flue gas flowing through the outer surface of the pipe. The pipe acts as a heat exchange medium, so that the temperature of the flue gas is exchanged with the temperature of the water flow. The water temperature increases and the flue gas temperature decreases. After the water flow is heated to a certain temperature, steam is generated, which is used to drive the generator to rotate and generate electricity. Since the flue gas is generated from the incineration of hazardous waste, the flue gas will carry some particles in the hazardous waste. When the hazardous waste material is mainly acidic, the proportion of the acidic part in the exhausted flue gas will increase. Although the flue gas is treated by the condensation tower, the temperature of the flue gas is still 200°C when it is discharged, which causes the flue gas to have a higher temperature when it is discharged, and it will carry some evaporated acidic water vapor with it. The acidic water vapor condenses with the pipe and adheres to the outer wall of the pipe. Long-term adhesion will corrode the pipe and affect the use of the pipe.

[0004] The prior art provides some solutions. For example, a waste heat recovery and energy-saving device suitable for chimneys with publication number CN103423759B drives the rotation of the screw through a motor, and converts the rotational motion of the screw into reciprocating linear motion of the support frame up and down, thereby achieving the removal of moisture attached to the surface of the heat exchange tube. However, when removing moisture from the surface of the heat exchange tube, the support frame will produce longitudinal friction with the heat exchange tube, which can easily cause wear on the surface of the heat exchange tube. In an environment with high acidic water vapor, in order to increase the service life of the pipeline, a coating will be applied to the surface of the pipeline to slow down the corrosion of the acidic water vapor. The wear will cause the coating on the surface of the heat exchange tube to be damaged. At this time, the acidic water vapor can easily corrode the pipeline through the worn area, affecting the use of the pipeline.

[0005] Therefore, a hazardous waste incineration waste heat power generation system is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a waste heat power generation system for incinerating hazardous waste, which solves the problem of corrosion of the pipeline by condensed water attached to the surface of the secondary waste heat boiler in an acidic environment. By utilizing the water hammer effect formed by the different flow rates of water at the water inlet and the water outlet in the pipeline, the pipeline is twisted within a limited range to generate centrifugal force, thereby achieving the purpose of removing the acidic condensed water.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A hazardous waste incineration waste heat power generation system, comprising a shell, an air bag and a power generation unit, wherein the air bag is installed at the upper end of the shell, the power generation unit is connected to the air bag, and further comprises a discharge pipe, a water pump, a downflow pipe, a guide pipe, an upflow pipe, a heat exchange pipe, a flow regulating component and a constant pressure component, wherein one end of the discharge pipe is connected to the left end of the air bag, the water pump is connected to the middle of the discharge pipe, the downflow pipe is connected to the other end of the discharge pipe, the guide pipe array is connected to the lower side of the air bag, and a plurality of the upflow pipes are respectively connected to a plurality of guide pipes. The heat exchange tubes are connected, the heat exchange tube array is connected to the lower side of the upstream tube, the flow regulating component is connected to the heat exchange tube, the constant pressure component is connected to the flow regulating component, the lower side of the heat exchange tube is a water inlet, and the upper side of the heat exchange tube is a water outlet. When water flows, the flow regulating component forms a flow difference at the water inlet and the water outlet of the heat exchange tube. When the flow difference exceeds a specified value, the constant pressure component increases the water flow at the water outlet. When the flow difference is lower than a specified value, the constant pressure component reduces the water flow at the water outlet.

[0009] Through the above scheme, the water flow forms a cycle. Through multiple cycles of the water flow, the water flow is heated up, thereby generating steam to drive the power generation unit to generate electricity. At the same time, the flow regulating component causes the water flow to form a flow difference at the water inlet and the water outlet of the heat exchange tube. The flow velocity of the liquid in the heat exchange tube changes sharply, and the pressure of the liquid changes, thereby causing the heat exchange tube to twist, thereby achieving the purpose of removing acidic condensed water.

[0010] Preferably, the upstream pipe includes a left half pipe and a right half pipe, the left half pipe is connected to the left side of the guide pipe, and the right half pipe is connected to the right side of the guide pipe, and the left half pipe and the right half pipe are connected by laser welding at one time.

[0011] Through the above solution, the upstream pipe is connected to the guide pipe on the top and the heat exchange pipe on the bottom. The upstream pipe is divided into a left half pipe and a right half pipe, thereby facilitating the installation of the flow regulating component and the constant pressure component. At the same time, the left half pipe and the right half pipe are connected by laser welding at one time, which has a good sealing effect and effectively reduces water seepage.

[0012] Preferably, the flow regulating assembly includes a disc body, a disc cover, a notch, a limit block, a compression spring, a guide block and a flow limiting ring, the disc body is connected to the upper end of the heat exchange tube, and the disc body is arranged in the middle of the left half tube and the right half tube, the disc cover is connected to the upper end of the disc body, the notch array is opened on the lower side of the inner cavity of the disc body, the limit block is connected in the notch, one end of the compression spring is connected to the limit block, and the other end of the compression spring is connected to the disc body, the guide block is connected to the upper end of the limit block, and the flow limiting ring is connected to the lower side of the heat exchange tube, the limit block is wedge-shaped, and the notch cooperates with the wedge shape of the limit block.

[0013] Through the above scheme, when the water flows from bottom to top, it will generate pressure on the guide block. By making the limit block wedge-shaped, the guide block can withstand the flow pressure from bottom to top, thereby achieving the purpose of stability. At the same time, the wedge shape facilitates the linear movement of the guide block, thereby adjusting the flow of the outlet.

[0014] Preferably, there are multiple guide blocks, one side of the guide block is provided with an arc opening, and the transverse sections connected by the multiple arc openings can be spliced ​​into a complete circle, and the radius of the arc opening is smaller than the radius of the inner wall of the flow limiting ring.

[0015] Through the above scheme, when the guide plates contact each other, the arc joints form a complete circle. At this time, the inner diameter of the flow limiting ring is larger than the circular diameter of the arc joints, so that the flow rates at the water inlet and outlet of the heat exchange tube form a difference, and then the water flow forms a water hammer effect on the inner wall of the heat exchange tube, causing the heat exchange tube to twist, thereby achieving the purpose of removing the acidic condensed water attached to the surface of the heat exchange tube.

[0016] Preferably, one side of the bottom of the guide block close to the arc opening is inclined, and the inner wall of the flow limiting ring is inclined. Thus, one side of the guide block is inclined and the inner wall of the flow limiting ring is inclined, thereby facilitating the flow of water.

[0017] Preferably, the constant pressure assembly includes a slide bar, a slot, a block, a push spring, a card plate, a limit bar and a flow baffle, and the plurality of slide bars pass through the plurality of guide blocks respectively. The slot is opened on one side of the guide block, the block is connected to one side of the slot, the push spring is connected to the lower end of the block, the card plate is connected to the bottom of the slot, the limit bar array is connected to the lower side of the disk cover, the limit bar is clamped with the upper end of the block, the flow baffle is connected to one end of the slide bar, one side of the block is inclined, and the block is in contact with the slide bar.

[0018] Through the above scheme, the pressure of the water body can be fed back, and the pressure of the water flow acts on the baffle plate, pushing the baffle plate to move, causing the slide bar to squeeze the block, and the block moves down and separates from the limit bar, thereby achieving the purpose of unlocking, so that the flow regulating component moves after reaching a certain pressure, thereby effectively ensuring the twisting amplitude of the heat exchange tube.

[0019] Preferably, the baffle comprises an inclined plate and a longitudinal plate, the inclined plate is connected to the slide bar, the longitudinal plate is connected to the upper end of the inclined plate, a plurality of the longitudinal plates are staggered inside and outside, and a plurality of the inclined plates are staggered inside and outside.

[0020] Through the above scheme, when the inclined plate and the longitudinal plate are moved by the water flow pressure, they will always keep in contact with each other, thereby effectively preventing the water flow from entering the middle of the guide block, effectively improving the service life of the equipment, and at the same time, by setting the guide plate, the water flow can be turbulent at the water outlet, thereby increasing the swing amplitude of the heat exchange tube.

[0021] Preferably, a seal is connected to the lower side of the disk cover, the seal is rectangular, the long side of the seal is in contact with the guide block, and the side of the seal close to the longitudinal plate is magnetic.

[0022] Through the above scheme, when the guide blocks move outward, gaps will be generated between the guide blocks. By setting the seal at the gap, the entry of water flow is effectively alleviated. At the same time, the movement of the seal is caused by the extrusion of the two longitudinal plates, and the edges of the longitudinal plates always keep the two longitudinal plates superimposed and jointly apply force to the seal, which effectively ensures the stability of the connection between the longitudinal plates and the sliding strips.

[0023] Preferably, the heat exchange tube includes a bellows and a spring, the bellows is connected to the upper end of the downflow tube, the spring is wound on the surface of the bellows, the longitudinal section of the spring is rectangular, and the short side of the longitudinal section of the spring is in contact with the bellows.

[0024] The bellows connects the upstream pipe and the downstream pipe, so that the water in the downstream pipe can flow into the upstream pipe under the action of the pump body. By making the water flow in the bellows, the bellows can exchange heat with the flue gas, thereby achieving the purpose of heating the water flow. The corrugated setting of the bellows itself can effectively increase the contact area between the bellows and the flue gas, thereby improving the heat exchange effect with the flue gas. By setting a spring, on the one hand, the longitudinal cross-section of the spring is made rectangular, and the short side is made to fit the bellows, which can further increase the contact area with the flue gas, thereby improving the heat exchange effect. On the other hand, the spring can limit the swing amplitude of the bellows to improve the stability of the bellows when swinging.

[0025] Preferably, a magnetic sheet is connected to a middle array of the outer surface of the spring, a plurality of magnetic sheets have the same poles facing the bellows, and a side of the magnetic sheet away from the bellows is arc-shaped.

[0026] When the bellows is affected by the flow of water, it will drive the spring to flow. By arranging a magnetic sheet on the outer surface of the spring, when the spring flows irregularly, the mutual repulsion of the magnetic sheets at the same level can avoid collision during the flow of the spring, thereby effectively improving the life of the bellows. At the same time, the side of the magnetic sheet away from the bellows is arc-shaped, so that the magnetic sheet has a smooth transition when mutually repelling, thereby effectively ensuring the torque of the bellows when it swings, and effectively ensuring the effect of throwing out acidic water droplets during flow.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The present invention solves the problem of corrosion of the pipeline by condensed water attached to the surface of the secondary waste heat boiler in an acidic environment. By arranging a heat exchange tube, the flow regulating component limits the flow of the water inlet and the water outlet of the heat exchange tube, so that the water flow in the heat exchange tube undergoes a pressure change. The water flow with a pressure change impacts the bellows, causing the bellows to twist. The twisted bellows generates centrifugal force to throw out the condensed water, thereby achieving the purpose of cleaning. At the same time, the constant pressure component regulates the flow of the outlet according to the pressure in the heat exchange tube, so that the pressure of the water flow in the bellows undergoes a periodic change, and at the same time, the water flow pressure is stabilized below a specified value. On the one hand, the twisting amplitude of the bellows is periodically changed to strengthen the centrifugal force of the bellows. On the other hand, the stable operation of the bellows is effectively guaranteed.

[0029] 2. By setting the baffle, the water flow at the water outlet will be disturbed, so that the water flow will impact the bellows, causing the bellows to shake. At the same time, when the water flow acts on the inclined plate, the slide bar will gradually move outward to squeeze the block. The movement of the block releases the limit on the guide block, allowing the guide block to open, thereby discharging the water accumulated in the bellows, further changing the flow difference, intensifying the twisting of the bellows, and further improving the effect of removing condensed water.

[0030] 3. By setting up a flow regulating component, the flow limiting ring is connected to the water inlet to increase the flow rate at the water inlet, and the guide block is connected to the water outlet to further increase the flow rate at the water outlet. The water pressure in the bellows changes, which in turn has an impact on the inner wall of the bellows, causing the bellows to twist. A spring is set on the periphery of the bellows to allow the bellows to twist within a limited range, while increasing the heat conduction area of ​​the bellows. The twisted bellows generates centrifugal force to throw out the condensed water, thereby effectively removing the condensed water. At the same time, when the pressure reaches a certain value, the constant pressure component releases the limit on the guide block, causing the guide block to move outward, increasing the outlet flow rate, and quickly discharging the water in the bellows, effectively ensuring the stability of the bellows operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the appearance of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the upstream pipe part of the present invention;

[0033] Figure 3 It is a structural schematic diagram of the flow regulating component part of the present invention;

[0034] Figure 4 For the present invention Figure 3 A magnified schematic diagram of point A;

[0035] Figure 5 For the present invention Figure 3 An enlarged schematic diagram of point B;

[0036] Figure 6 It is a structural schematic diagram of the constant pressure component part of the present invention;

[0037] Figure 7 For the present invention Figure 6 An enlarged schematic diagram of point C;

[0038] Figure 8 This is a schematic diagram of a state where the flow regulating component of the present invention has not changed;

[0039] Fig. 9 It is a schematic diagram of the state of the flow regulating component after the change of the present invention.

[0040] In the figure: 1, shell; 2, air bag; 3, power generation unit; 4, discharge pipe; 5, water pump; 6, downflow pipe; 7, guide pipe; 8, upflow pipe; 801, left half pipe; 802, right half pipe; 9, heat exchange pipe; 901, bellows; 902, spring; 9021, magnetic sheet; 10, flow regulating assembly; 1001, disk body; 1002, disk cover; 1003, notch; 1004, limit block; 1 005, compression spring; 1006, guide block; 10061, arc mouth; 1007, flow limiting ring; 11, constant pressure assembly; 1101, slide bar; 1102, slot; 1103, block; 1104, push spring; 1105, card plate; 1106, limit strip; 1107, flow blocking member; 11071, inclined plate; 11072, longitudinal plate; 12, seal; m, water inlet; n, water outlet. DETAILED DESCRIPTION

[0041] The following is a clear and complete description of the technical solution of the embodiment of the present invention in conjunction with the drawings of the embodiment of the present invention, so that its working state and structural features are more detailed. Obviously, the described embodiment is only a partial embodiment of the present invention, not a complete embodiment. Based on the embodiment of the present invention, other embodiments obtained by ordinary technicians in this field without making any creativity belong to the protection scope of the present invention.

[0042] See also Figures 1 to 9 The present invention provides a hazardous waste incineration waste heat power generation system, and the technical solution is as follows:

[0043] For details, please refer to Figures 1 to 9, a waste heat power generation system for incineration of hazardous waste, comprising a shell 1, an air bag 2 and a power generation unit 3, wherein the air bag 2 is installed at the upper end of the shell 1, the power generation unit 3 is connected to the air bag 2, the steam generated in the air bag 2 flows to the power generation unit 3, driving the power generation unit 3 to rotate for power generation, a water inlet hole is provided on the upper side of the air bag 2, a drainage hole is provided on the lower side of the air bag 2, and further comprising a discharge pipe 4, a water pump 5, a downflow pipe 6, a guide pipe 7, an upflow pipe 8, a heat exchange pipe 9, a flow regulating component 10 and a constant pressure component 11, one end of the discharge pipe 4 is connected to the left end of the air bag 2, the water pump 5 is connected to the middle part of the discharge pipe 4, the water pump 5 operates to extract water from the air bag 2, the downflow pipe 6 is connected to the other end of the discharge pipe 4, the guide pipe 7 array is connected to the lower side of the air bag 2, the number of the guide pipes 7 is multiple, and the multiple upflow pipes 8 are respectively It is connected to multiple flow guide pipes 7, the heat exchange tube 9 array is connected to the lower side of the upstream tube 8, the number of heat exchange tubes 9 is multiple, the flow regulating component 10 is connected to the heat exchange tube 9, the number of flow regulating components 10 is multiple and corresponds to the heat exchange tube 9, the constant pressure component 11 is connected to the flow regulating component 10, the lower side of the heat exchange tube 9 is the water inlet m, the upper side of the heat exchange tube 9 is the water outlet n, when the water flows, the flow regulating component 10 forms a flow difference between the water inlet m and the water outlet n of the heat exchange tube 9, when the flow difference exceeds the specified value, the constant pressure component 11 increases the water flow at the water outlet n, when the flow difference is lower than the specified value, the constant pressure component 11 reduces the water flow at the water outlet n, and when the water flow generated by the flow difference accumulates in the heat exchange tube 9, it shall not exceed half of the expandable amount of the heat exchange tube 9.

[0044] By setting a water pump 5, water is poured into the air bag 2 through the water inlet hole. Through the extraction of the water pump 5, the water flows through the discharge pipe 4, the downflow pipe 6, the heat exchange pipe 9, the upflow pipe 8 and the guide pipe 7 in sequence, and finally returns to the air bag 2. During the flow of water, the flue gas heats the water flow at the heat exchange pipe 9, so that the temperature of the water flow returning to the air bag 2 increases, and the water in the air bag 2 generates steam and flows to the power generation unit 3, driving the power generation unit 3 to generate electricity. The steam condenses into water and then flows back to the air bag 2, thereby realizing the circulation of water. Through multiple cycles, the water can be heated. After being used for a period of time, the water in the air bag 2 is replaced through the drainage hole. The flow regulating component 10 makes the water inlet m and the water outlet n of the heat exchange pipe 9 have different restrictions. The water inlet m and the water outlet n of the heat exchange pipe 9 are different in size. The water flow forms a flow difference at the water inlet m and the water outlet n of the heat exchange pipe 9, and the flow rate of the liquid changes sharply, thereby causing the heat exchange pipe 9 to twist. The centrifugal force generated by the twisting throws off the acidic condensed water.

[0045] As an embodiment of the present invention, refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 8 and Fig. 9 The upstream pipe 8 includes a left half pipe 801 and a right half pipe 802. The left half pipe 801 is connected to the left side of the flow guide pipe 7, and the right half pipe 802 is connected to the right side of the flow guide pipe 7. The connection between the left half pipe 801 and the right half pipe 802 is completed by one-time laser welding. The one-time welding has a good sealing effect. At the same time, by dividing the upstream pipe 8 into the left half pipe 801 and the right half pipe 802, it is convenient to install the flow regulating component 10 and the constant pressure component 11 into the inner cavity of the upstream pipe 8. The flow regulating component 10 includes a disc body 1001, a disc cover 1002, a notch 1003, and a limit block 1004. , compression spring 1005, guide block 1006 and flow limiting ring 1007, the disk body 1001 is connected to the upper end of the heat exchange tube 9, the connection between the disk body 1001 and the heat exchange tube 9 is sealed, and the disk body 1001 is arranged in the middle of the left half pipe 801 and the right half pipe 802, the disk body 1001 is located in the inner cavity of the upstream pipe 8, the disk cover 1002 is connected to the upper end of the disk body 1001, the disk cover 1002 is located in the inner cavity of the upstream pipe 8, the notch 1003 array is opened on the lower side of the inner cavity of the disk body 1001, the limit block 1004 is connected in the notch 1003, the limit block 1 The number of 004 ​​corresponds to the number of slots 1003, one end of the compression spring 1005 is connected to the limit block 1004, and the other end of the compression spring 1005 is connected to the disk body 1001. In the initial state, the compression spring 1005 pushes the limit block 1004 to fit with the side of the slot 1003 close to the inside. The guide block 1006 is connected to the upper end of the limit block 1004, and the number of the guide blocks 1006 corresponds to the limit block 1004. In the initial state of the compression spring 1005, multiple guide blocks 1006 fit each other, and the limiting ring 1007 is connected to the heat exchange tube 9. On the lower side, the flow limiting ring 1007 is connected to the water inlet m, the limit block 1004 is wedge-shaped, the slot 1003 cooperates with the wedge shape of the limit block 1004, the number of the guide blocks 1006 is multiple, and an arc opening 10061 is opened on one side of the guide block 1006. The transverse sections connected by multiple arc openings 10061 can be spliced ​​into a complete circle, the radius value of the arc opening 10061 is smaller than the radius value of the inner wall of the flow limiting ring 1007, the side of the bottom of the guide block 1006 close to the arc opening 10061 is inclined, and the inner wall of the flow limiting ring 1007 is inclined.

[0046] Through the above scheme, the upstream pipe 8 is connected to the guide pipe 7 on the upper side and the heat exchange tube 9 on the lower side. At the same time, the water flow is heated and expanded at the upstream pipe 8, so that there is a certain water flow pressure in the upstream pipe 8. By welding the left half pipe 801 and the right half pipe 802 by laser at one time, it can withstand a certain water flow pressure and maintain a good sealing effect. By dividing the upstream pipe 8 into the left half pipe 801 and the right half pipe 802, it can also be convenient to install the flow regulating component 10 and the constant pressure component 11. The flow regulating component 10 is installed in the inner cavity of the upstream pipe 8. The inner cavity diameter of the upstream pipe 8 is relatively large. When installing the flow regulating component 10 and the constant pressure component 11, the available diameter value at the water outlet n can be made equivalent to the diameter value at the water inlet m, which effectively guarantees the flow rate of the heat exchange tube 9. When the water flows, it flows from the heat exchange tube 9 flows from the water inlet m to the water outlet n, and the inner wall of the water outlet n fits the flow limiting ring 1007. The flow of the water inlet m is limited by the flow limiting ring 1007. In the initial state, the compression spring 1005 makes the guide blocks 1006 fit each other. At this time, the arc openings 10061 opened on the guide blocks 1006 are spliced ​​into a complete circle with a diameter value smaller than the diameter value of the flow limiting ring 1007. As a result, the water flow is accelerated during the flow, but the flow rate is reduced. The water flow forms a flow velocity difference in the heat exchange tube 9, which causes the heat exchange tube 9 to twist. The centrifugal force generated by the twisting will throw out the acidic condensed water attached to the surface of the heat exchange tube 9. On the one hand, it can avoid the corrosion of the heat exchange tube 9 by the acidic condensed water. On the other hand, the heat exchange tube 9 not covered with condensed water is in direct contact with the flue gas, which effectively improves the heat conduction effect.

[0047] As an embodiment of the present invention, refer to Figure 6 , Figure 7 , Figure 8 and Fig. 9The constant pressure assembly 11 includes a slide bar 1101, a slot 1102, a block 1103, a push spring 1104, a card plate 1105, a limit bar 1106 and a baffle 1107. The plurality of slide bars 1101 pass through the plurality of guide blocks 1006 respectively, and the slide bar 1101 slides in the guide block 1006. The slot 1102 is provided on one side of the guide block 1006, and the block 1103 is connected to one side of the slot 1102. The block 1103 slides longitudinally in the slot 1102. The push spring 1104 is connected to the lower end of the block 1103, and the card plate 1105 is connected to the bottom of the slot 1102. The push spring 1104 is connected to the lower end of the block 1103, and the card plate 1105 is connected to the bottom of the slot 1102. The two ends of 04 are connected to the block 1103 and the card plate 1105 respectively. When the push spring 1104 is in the initial state, the upper end of the block 1103 contacts the disk cover 1002, the limit bar 1106 array is connected to the lower side of the disk cover 1002, the limit bar 1106 is clamped with the upper end of the block 1103, the baffle 1107 is connected to one end of the slide bar 1101, and the baffle 1107 is connected to the end of the slide bar 1101 away from the block 1103. One side of the block 1103 is inclined, the block 1103 contacts the slide bar 1101, and the slide bar 1101 squeezes the block 1103 to make the block 1103 move longitudinally. The baffle 1107 includes an inclined plate 11071 and a longitudinal plate 11072, wherein the inclined plate 11071 is connected to the slide bar 1101, and the longitudinal plate 11072 is connected to the upper end of the inclined plate 11071. A plurality of the longitudinal plates 11072 are staggered inside and outside, and a plurality of the inclined plates 11071 are staggered inside and outside. The inclined plates 11071 and the longitudinal plates 11072 are in a mutually squeezed and bent state in the initial state of the device. When the inclined plates 11071 and the longitudinal plates 11072 move outward, the inclined plates 11071 and the longitudinal plates 11072 gradually open, and the three inclined plates 11071 and the longitudinal plates 11072 can always maintain contact when moving. A seal 12 is connected to the lower side of the disk cover 1002. The seal 12 is rectangular. The long side of the seal 12 is in contact with the guide block 1006. When the guide block 1006 moves outward, there will be a gap between the guide blocks 1006. The seal 12 is in contact with the guide block 1006, and the gap can be closed to effectively prevent water from affecting the flow regulating component 10 and the constant pressure component 11. The side of the seal 12 close to the longitudinal plate 11072 is magnetic, and the magnetism is adsorbed on the longitudinal plate 11072, so when the longitudinal plate 11072 moves inward, it can drive the seal 12 to move inward.

[0048] Through the above scheme, when water flows, it will generate pressure on the baffle 1107, and then the baffle 1107 pushes the block 1103 downward through the slide 1101. The inclination angle of the block 1103 is large, and then the push of the slide 1101 is more laborious. When the block 1103 is separated from the limit bar 1106, the slide 1101 moves outward and makes the baffle 1107 fit on the guide block 1006. Since the pressure of the water flow is relatively large at this time, the pressure of the water flow is transmitted to the guide block through the baffle 1107. 1006 causes the guide block 1006 to move outwards. At this time, the wind force between the two guide blocks 1006 is sealed by the seal 12. When the guide block 1006 moves outwards, the adjacent longitudinal plates 11072 and inclined plates 11071 remain in contact. As the longitudinal plates 11072 and inclined plates 11071 move outwards, the water outlet diameter of the water outlet n increases, thereby allowing the pressure inside the heat exchange tube 9 to be quickly discharged and increasing the swing amplitude of the heat exchange tube 9, effectively improving the effect of removing condensed water.

[0049] As an embodiment of the present invention, refer to Figure 8 and Fig. 9 The heat exchange tube 9 includes a bellows 901 and a spring 902. The bellows 901 is connected to the upper end of the downflow tube 6. The connection between the bellows 901 and the downflow tube 6 is sealed. The inner wall of the bellows 901 is corrugated, so the water flow rubs against the corrugated inner wall when flowing, which further increases the swing amplitude of the bellows 901. The spring 902 is wound around the surface of the bellows 901. The inner wall of the spring 902 contacts the outer wall of the bellows 901. The longitudinal section of the spring 902 within a single pitch is rectangular, so the left and right pulling amplitude of the spring 902 is limited, which effectively controls the swing amplitude of the bellows 901. The short side of the longitudinal section of the spring 902 fits with the bellows 901, which effectively ensures that the spring 902 is exposed. The outer surface area is convenient for absorbing the temperature of the flue gas. The middle array of the outer surface of the spring 902 is connected with a magnetic sheet 9021. The same poles of multiple magnetic sheets 9021 face the bellows 901, and the same poles of the magnetic sheets 9021 are away from the bellows 901. When the bellows 901 swings, the same poles of the magnetic sheets 9021 on the surfaces of two adjacent springs 902 repel each other, thereby further controlling the swing amplitude of the bellows 901 to avoid collision between the heat exchange tubes 9 when twisting. The side of the magnetic sheet 9021 away from the bellows 901 is arc-shaped, so that the magnetic sheet 9021 can move more smoothly when repelling each other, thereby effectively ensuring the centrifugal force of the heat exchange tube 9 and avoiding damage to the bellows 901 caused by sudden deceleration when the heat exchange tube 9 twists.

[0050] Through the above scheme, when the water flows from bottom to top, since the water flow rate at the water inlet m is large and the water flow rate at the water outlet n is small, the water pressure in the bellows 901 changes, and then the bellows 901 swings. The spring 902 effectively limits the swing amplitude of the bellows 901, and at the same time makes the longitudinal cross-section of the spring 902 rectangular, so that the exposed surface area of ​​the spring 902 is large, and the contact area with the smoke is large, which is convenient for the spring 902 to absorb heat and transfer the heat to the bellows 901. The arc-shaped setting of the magnetic sheet 9021 avoids the inertial impact caused by the sudden deceleration of the bellows 901 due to the mutual repulsion of magnetic forces when the two bellows 901 are twisted close, thereby affecting the life of the bellows 901.

[0051] When the water flows in the heat exchange tube 9, the flow regulating component 10 makes the flow rate of the water inlet m of the heat exchange tube 9 large and the flow rate of the water outlet n small, so that the pressure of the water in the heat exchange tube 9 changes. The water flow will exert a force on the heat exchange tube 9, causing the heat exchange tube 9 to twist. The twisted heat exchange tube 9 generates centrifugal force to throw out the acidic condensed water. At the same time, when the water pressure in the heat exchange tube 9 reaches a certain value, the diameter of the water outlet n of the heat exchange tube 9 is expanded to release the pressure.

[0052] When the flue gas exchanges heat with the heat exchange tube 9, condensed water will be formed on the surface of the heat exchange tube 9. In order to remove the condensed water, the bellows 901 is twisted to generate centrifugal force, and the condensed water is thrown out by the centrifugal force. Specifically, a flow limiting ring 1007 is set at the water inlet m of the bellows 901, and the bottom wall of the flow limiting ring 1007 is in a gathered and inclined shape, thereby accelerating the water flow. The water flow at the water inlet m is large, and the water flow is then discharged through the water outlet n of the bellows 901. At this time, the water flow pressure in the bellows 901 is relatively small, and the guide block 1006 is in an initial state close to the center and close to each other. The water inlet area value of the water inlet m is greater than the water outlet area value of the water outlet n. The water flow at the water outlet n is small, and the water flow produces a pressure change in the bellows 901, which impacts the pipeline, causing the pipeline to twist. The twisted pipeline generates centrifugal force to throw out the condensed water;

[0053] Since the flow rate of the water inlet m is large and the flow rate of the water outlet n is small, and the bellows 901 is retractable, part of the water flow accumulates in the bellows 901. In order to ensure the service life of the bellows 901, it is necessary to discharge the accumulated water flow. Specifically, the pressure of the water flow on the baffle 1107 increases, so that the inclined plate 11071 drives the longitudinal plate 11072 to move outward, and the movement of the inclined plate 11071 drives the slide bar 1101 to squeeze the block 1103, and the block 1103 moves downward and separates from the limit bar 1106, and the inclined plate 11071 contacts the inclined surface of the guide block 1006, and the longitudinal plate 11072 contacts the arc 10061 of the guide block 1006, and the pressure directly acts on the guide block 100 6, so that the guide block 1006 moves outward. When the guide block 1006 moves outward, the diameter of the water outlet n increases, the water flow rate increases, and at the same time, the change in pressure increases the twisting amplitude of the pipe, further throwing out the condensed water. After the accumulated water flow is discharged, the compression spring 1005 pushes the limit block 1004 to reset, thereby driving the guide block 1006 to reset. After the guide block 1006 is reset, the push spring 1104 drives the clamping block 1103 to reset, and then the slide bar 1101 drives the baffle 1107 to extend. Through the cycle of water accumulation-discharge-accumulation-discharge in the bellows 901, the swing amplitude of the bellows 901 changes periodically, which effectively improves the effect of the bellows 901 in removing condensed water.

[0054] At the same time, when the guide block 1006 moves, the adjacent guide blocks 1006 will gradually separate. In order to prevent water from entering the gap, a seal 12 is specifically set. The seal 12 is magnetic and adsorbed with the longitudinal plate 11072. In the initial state, the seal 12 is close to the arc surface, and the adjacent guide blocks 1006 are in contact to prevent water from entering. When the longitudinal plate 11072 moves, the staggered longitudinal plates 11072 will squeeze the guide block 1006 outward, so that the rectangular long side of the guide block 1006 will block the gap, thereby preventing water from entering. At the same time, the gap is located at the intersection of two inclined plates 11071, and the inclined plate 11071 fits with the guide block 1006, thereby preventing water from entering the gap from the bottom or side.

[0055] Although the embodiments of the present invention have been described, it will be apparent to those skilled in the art that changes and modifications may be made to the embodiments to obtain other effects with an understanding of the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hazardous waste incineration waste heat power generation system, comprising a housing (1), an air bag (2) and a power generation unit (3), wherein the air bag (2) is mounted on the upper end of the housing (1), and the power generation unit (3) is connected to the air bag (2). Features: The air bag (2) further comprises a discharge pipe (4), a water pump (5), a downflow pipe (6), a guide pipe (7), an upflow pipe (8), a heat exchange pipe (9), a flow regulating assembly (10) and a constant pressure assembly (11); one end of the discharge pipe (4) is connected to the left end of the air bag (2); the water pump (5) is connected to the middle of the discharge pipe (4); the downflow pipe (6) is connected to the other end of the discharge pipe (4); the guide pipe (7) is connected in array to the lower side of the air bag (2); a plurality of upflow pipes (8) are respectively connected to a plurality of guide pipes (7); and the heat exchange pipe (9) is connected in array to the lower side of the upflow pipe (8). The flow regulating component (10) is connected to the heat exchange tube (9), the constant pressure component (11) is connected to the flow regulating component (10), the lower side of the heat exchange tube (9) is a water inlet (m), and the upper side of the heat exchange tube (9) is a water outlet (n). When water flows, the flow regulating component (10) forms a flow difference between the water inlet (m) and the water outlet (n) of the heat exchange tube (9). When the flow difference exceeds a specified value, the constant pressure component (11) increases the water flow at the water outlet (n); when the flow difference is lower than a specified value, the constant pressure component (11) reduces the water flow at the water outlet (n).

2. A hazardous waste incineration waste heat power generation system according to claim 1, Features: The upstream pipe (8) comprises a left half pipe (801) and a right half pipe (802), wherein the left half pipe (801) is connected to the left side of the flow guide pipe (7), and the right half pipe (802) is connected to the right side of the flow guide pipe (7), and the connection between the left half pipe (801) and the right half pipe (802) is completed by one-time laser welding.

3. A hazardous waste incineration waste heat power generation system according to claim 2, Features: The flow regulating assembly (10) comprises a disk body (1001), a disk cover (1002), a notch (1003), a limit block (1004), a compression spring (1005), a flow guide block (1006) and a flow limiting ring (1007); the disk body (1001) is connected to the upper end of the heat exchange tube (9), and the disk body (1001) is arranged between the left half tube (801) and the right half tube (802); the disk cover (1002) is connected to the upper end of the disk body (1001); the notch (1003) is arranged in an array on the disk body (1001); 01) is located at the lower side of the inner cavity, the limit block (1004) is connected to the notch (1003), one end of the compression spring (1005) is connected to the limit block (1004), the other end of the compression spring (1005) is connected to the disk body (1001), the guide block (1006) is connected to the upper end of the limit block (1004), the limiting ring (1007) is connected to the lower side of the heat exchange tube (9), the limit block (1004) is wedge-shaped, and the notch (1003) and the limit block (1004) are wedge-shaped.

4. A hazardous waste incineration waste heat power generation system according to claim 3, Features: There are multiple guide blocks (1006), one side of each guide block (1006) is provided with an arc opening (10061), and the transverse cross-sections connected by the multiple arc openings (10061) can be spliced ​​into a complete circle, and the radius of the arc opening (10061) is smaller than the radius of the inner wall of the flow limiting ring (1007).

5. A hazardous waste incineration waste heat power generation system according to claim 4, Features: The bottom of the guide block (1006) is inclined on one side close to the arc opening (10061), and the inner wall of the flow limiting ring (1007) is inclined.

6. A hazardous waste incineration waste heat power generation system according to claim 4, Features: The constant pressure assembly (11) comprises a slide bar (1101), a slot (1102), a block (1103), a push spring (1104), a clamping plate (1105), a limit bar (1106) and a flow blocking member (1107); a plurality of the slide bars (1101) respectively pass through a plurality of flow guide blocks (1006); the slot (1102) is provided on one side of the flow guide block (1006); the block (1103) is connected to one side of the slot (1102); and the push spring (1104) is provided on the one side of the slot (1102). 04) is connected to the lower end of the card block (1103), the card plate (1105) is connected to the bottom of the card slot (1102), the limit bar (1106) array is connected to the lower side of the disk cover (1002), the limit bar (1106) is engaged with the upper end of the card block (1103), the baffle (1107) is connected to one end of the slide bar (1101), one side of the card block (1103) is inclined, and the card block (1103) is in contact with the slide bar (1101).

7. A hazardous waste incineration waste heat power generation system according to claim 6, Features: The baffle (1107) comprises an inclined plate (11071) and a longitudinal plate (11072), wherein the inclined plate (11071) is connected to the slide bar (1101), and the longitudinal plate (11072) is connected to the upper end of the inclined plate (11071), and a plurality of the longitudinal plates (11072) are distributed in an inner and outer staggered manner, and a plurality of the inclined plates (11071) are distributed in an inner and outer staggered manner.

8. A hazardous waste incineration waste heat power generation system according to claim 7, Features: The lower side of the disk cover (1002) is connected to a seal (12), the seal (12) is rectangular, the long side of the seal (12) is in contact with the guide block (1006), and the side of the seal (12) close to the longitudinal plate (11072) is magnetic.

9. A hazardous waste incineration waste heat power generation system according to claim 6, Features: The heat exchange tube (9) comprises a bellows (901) and a spring (902); the bellows (901) is connected to the upper end of the downflow tube (6); the spring (902) is wound around the surface of the bellows (901); the longitudinal section of the spring (902) is rectangular; and the short side of the longitudinal section of the spring (902) is in contact with the bellows (901).

10. A hazardous waste incineration waste heat power generation system according to claim 9, Features: A magnetic sheet (9021) is connected to the middle array of the outer surface of the spring (902), the same poles of the plurality of magnetic sheets (9021) face the bellows (901), and the side of the magnetic sheet (9021) away from the bellows (901) is arc-shaped.

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