Heat exchanger for condensation recovery

Abstract

The invention discloses a heat exchanger for condensation recovery, and relates to the field of heat exchange equipment, the heat exchanger comprises a heat exchange box, a condensation pipe is arranged on the inner side of the heat exchange box, the end part of the condensation pipe is connected with a refrigeration box, a partition plate is fixedly arranged on the inner wall of the heat exchange box, a resistance fan is tightly attached to one side of the partition plate, and a liquid storage box is arranged at the tail end of the partition plate. Partition plates are arranged in a heat exchange box to form concentric-square-shaped condensation intervals, waste gas is fully cooled in a small space, resistance fans for controlling the gas flow speed are arranged at outlets of the condensation intervals, the flow speed of the waste gas in the adjacent condensation intervals is limited, it is guaranteed that the cooling effect of the waste gas in the condensation intervals is controlled, and the cooling effect of the waste gas in the condensation intervals is improved. According to the invention, the structure is simple, sufficient condensation of condensation components is effectively ensured, the partition plates arranged in multiple layers and the condensation pipes capable of being selectively connected are convenient to carry out staged condensation and extraction of multiple components at the same time, in addition, the liquid storage tank is arranged at the bottom ends of the partition plates, and layered output of condensed liquid and condensed water is convenient through the structure of the liquid storage tank.

Description

Technical Field

[0001] The invention relates to a heat exchanger, in particular to a heat exchanger used for condensation recovery. Background Art

[0002] In the treatment of waste gas, it is often necessary to separate some components, some of which are recyclables with recovery value, and some are toxic and harmful substances that cannot be discharged. It is necessary to use heat exchange equipment to condense and recover some components with large differences in condensation points in the gaseous mixture.

[0003] The condensation equipment in the prior art usually consists of a condensation box, a condensation tube and a refrigeration end. The heat exchange process occurs on the side wall of the condensation tube. On the one hand, there may be a variety of recyclables with different condensation points in the exhaust gas, and a single condensation recovery cannot effectively carry out classified recovery. On the other hand, the condensate droplets drip on the bottom of the condensation box under the action of gravity, and the hot air flow usually enters the condensation box from the bottom and exits the top. The dripping condensate is heated by the hot air and evaporates repeatedly, and cannot be effectively separated. In addition, the existing condensation heat exchange equipment usually simply uses the principle of thermal expansion and contraction to actively discharge the exhaust gas, resulting in unclear separation of the sections in the condensation box. A larger condensation box is required to ensure the condensation treatment of the exhaust gas.

[0004] Therefore, those skilled in the art have proposed a heat exchanger for condensation recovery and designed a condensation device according to the condensation needs, which can realize heat exchange treatment of a large volume of gas in a short time and facilitate the export of condensed substances. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a heat exchanger for condensation recovery, which divides the heat exchange box into a plurality of different cooling sections from bottom to top through partitions. The position where the refrigeration box is connected to the condenser tube is selected according to usage needs, and the exhaust gas is cooled in a predetermined temperature range in the designated cooling section to selectively condense and separate different components in the exhaust gas, and effectively prevent the condensed liquid from being evaporated again by the hot air after dripping.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a heat exchanger for condensation recovery, comprising a heat exchange box, a condenser and a refrigeration box, an air inlet pipe is arranged through the bottom of the heat exchange box, and high-temperature exhaust gas is introduced into the heat exchange box through the air inlet pipe, a condenser is arranged on the inner side of the heat exchange box, and the hot exhaust gas exchanges heat through the contact with the condenser, thereby achieving cooling, and after the exhaust gas is cooled, droplets condense on the side walls of the heat exchange box and the condenser, the end of the condenser passes through the heat exchange box and is connected to the refrigeration box, and the heat exchange medium in the condenser is compressed and cooled by the refrigeration box, and circulated into the condenser.

[0007] The inner wall of the heat exchange box is fixedly provided with a partition, which divides the heat exchange box into a plurality of independent condensation sections with gradually decreasing temperature levels from bottom to top, so as to facilitate the condensation and separation of different components of multiple condensation points in the exhaust gas at the same time, and to facilitate the control of the cooling range according to the needs of exhaust gas treatment.

[0008] A resistance fan is provided at the end of the partition, and the exhaust gas pushes the resistance fan to rotate and enter the upper condensation space. After the exhaust gas is processed in the lower cooling zone, the resistance fan is pushed to enter the upper layer to continue the next stage of cooling treatment. The flow rate of the exhaust gas at each level of the heat exchange box is controlled by adjusting the resistance of the resistance fan, and the exhaust gas treatment process is controlled in combination with the refrigeration efficiency of the refrigeration box.

[0009] A liquid storage tank is provided on the inner side of the partition. Condensed liquid condensed on the side of the partition drips into the liquid storage tank under the action of gravity and is temporarily collected. The liquid storage tank prevents the condensed liquid from continuing to fall under the action of gravity and being evaporated by the hot air flow. At the same time, it is convenient to collect condensed liquid at different levels and to collect condensed substances and water in layers.

[0010] Preferably, the partition includes a partition plate, one end of which is fixedly connected to an inner wall of one side of a heat exchanger box, and the other end of the partition plate is fixedly inclined upward along the inner wall of the heat exchanger box. A guide plate is fixedly connected to the inner wall of the heat exchanger box and is located below the partition plate in parallel, so that an upwardly inclined heat exchange channel is formed between the partition plate and the guide plate. The hot air flow is input from the top of the partition plate of the next level, and heat is exchanged with the condenser tube in the process of the hot air flow rising along the heat exchange channel, which is conducive to full utilization of the condensing medium in the condenser tube.

[0011] The resistance fan is arranged between the partition plate and the guide plate. The hot airflow can continue to move upward in the heat exchange channel only when it pushes the resistance fan to rotate. The liquid storage tank is fixedly arranged at the bottom of the guide plate. The liquid storage tank arranged at the bottom is convenient for collecting condensed liquid.

[0012] Preferably, a baffle is fixedly provided on the lower surface of the end of the partition plate and the upper surface of the end of the guide plate, and the condensed liquid on the lower surface of the partition plate and the upper surface of the guide plate is dripped into the liquid storage tank through the baffle.

[0013] One end of the guide plate is fixedly connected to the inner wall of the heat exchange box, and the partition plate and the guide plate form a meandering cooling channel on the inner side of the heat exchange box. The formed meandering cooling channel is more conducive to exhaust gas treatment in a small space, and the exhaust gas flow distance increases, and the effective distance for heat exchange also increases accordingly.

[0014] Preferably, the condenser tube comprises a heat exchange tube, and the heat exchange tube is installed extending inside the heat exchange box along the distribution of the partition, and the exhaust gas passing through the flow channel formed by the partition exchanges heat with the condensing medium in the heat exchange tube from bottom to top.

[0015] The top and bottom ends of the heat exchange tube are fixedly connected to connecting ends, and the connecting ends penetrate the side walls of the heat exchange box and extend outside the heat exchange box. The connecting ends are fixedly connected to outer tubes, and the heat exchange tubes of two upper and lower adjacent heat exchange spaces are connected through the outer tube. At the same time, the refrigeration box access position can also be selected through the connecting ends, and different levels of heat exchange intervals can be connected for use according to the needs of exhaust gas treatment.

[0016] Preferably, heat exchange wings are fixedly provided on the side of the heat exchange tube, and the heat exchange wings increase the effective heat exchange area between the exhaust gas and the heat exchange tube.

[0017] A sealing plug is slidably provided on the inner side of the connection end, and the connection and disconnection of the connection end are controlled by the sealing plug to ensure the sealing of the heat exchange tube connected to the refrigeration box.

[0018] A push block is fixedly connected to the inner side of the end of the outer tube corresponding to the sealing plug. When the outer tube is connected to the connection end, the push block cooperates with the sealing plug to control the opening and closing of the heat exchange tube.

[0019] Preferably, a sealing rubber pad is provided on the inner wall of the connecting end corresponding to the sealing plug, and the sealing rubber pad cooperates with the pressing effect of the sealing plug to ensure the sealing of the heat exchange tube.

[0020] The side surface of the sealing plug is fixedly connected with an advance contact rod, and the sealing plug is controlled by the advance contact rod to extend and slide in the heat exchange tube to control the on and off of the heat exchange tube.

[0021] A tightening spring is sleeved on the side of the advance contact rod, and the tightening spring applies a tightening force to the advance contact rod to ensure a tight seal between the sealing plug and the inner wall of the connection end.

[0022] Preferably, a mesh plate is fixedly connected to the inner side of the end of the connecting end, the advance touch rod passes through the mesh plate and extends outside the connecting end, and the clamping spring is arranged between the sealing plug and the mesh plate. The mesh plate is arranged to facilitate the clamping installation of the advance touch rod and will not hinder the flow of the heat exchange medium in the heat exchange tube.

[0023] The advancing feeler rod passes through one end of the grid plate and is threadedly connected to a tightening nut on the side surface. By adjusting the position of the tightening nut on the side surface of the advancing feeler rod, the tightening force applied by the tightening spring to the sealing plug is adjusted, and the advancing distance of the sealing plug when connected to the outer tube is also controlled.

[0024] Preferably, the resistance fan comprises a rotating body, a rotating shaft of which passes through a side wall of the heat exchange box and is connected to a bearing therewith, and the exhaust gas drives the rotating body to rotate to achieve flow rate control in adjacent heat exchange intervals.

[0025] The rotating shaft of the rotating body passes through one end of the side wall of the heat exchange box and is meshed with a retarder gear. The side of the retarder gear is rotatably connected to a resistance link, and the side of the resistance link is connected to a resistance spring. The resistance spring applies a stable resistance to the retarder gear through the resistance link, and resistance is applied to the rotation of the rotating body through the resistance. The flow speed of the exhaust gas in the heat exchange zone is controlled by controlling the rotational resistance of the rotating body.

[0026] Preferably, a protrusion is fixedly connected to the non-axial position of the side of the slow gear, one end of the resistance connecting rod is rotationally connected to the slow gear through the protrusion, one end of the resistance spring is fixedly connected to the resistance connecting rod away from the rotating end, the side wall of the heat exchange box is fixedly connected to a fixed block, a carry rod is inserted on the side of the fixed block, and the resistance spring is fixedly connected to the carry rod at the end away from the rotating end.

[0027] In conventional applications, the resistance spring is used to apply resistance to the rotation of the retarder gear. An advancement rod for conveniently adjusting the advancement length is provided to install the resistance spring, thereby facilitating adjustment of the resistance applied by the resistance spring, so that the flow of exhaust gas in the equipment better matches the refrigeration efficiency of the refrigeration box, thereby ensuring that the exhaust gas achieves a predetermined heat exchange effect in each heat exchange interval.

[0028] Preferably, a derivation pipe is provided through the side wall of the heat exchange box and located at the liquid storage tank, and a pressure regulating valve is provided on the inner side of the derivation pipe. The condensed liquid in the liquid storage tank is discharged through the derivation pipe. The pressure regulating valve is provided to control the discharge of the derivation pipe, so as to avoid the back-drip contamination of the condensed liquid caused by overflow of the liquid storage tank.

[0029] The present invention discloses a heat exchanger for condensation recovery, which has the following beneficial effects:

[0030] 1. The heat exchanger for condensation recovery is provided with partitions in the heat exchange box to form a zigzag condensation zone, so as to achieve sufficient cooling of the exhaust gas in a small space, and a resistance fan for controlling the gas flow rate is provided at the outlet of the condensation zone to limit the flow rate of the exhaust gas in the adjacent condensation zone, thereby ensuring the control of the cooling effect of the exhaust gas in the condensation zone, effectively ensuring the sufficient condensation of the condensation components, and the multi-layered partitions and the selectively connected condensation pipes are convenient for the staged condensation and refining of multiple components at the same time. In addition, a liquid storage tank is provided at the bottom of the partition, and the liquid storage tank structure is convenient for the layered output of the condensed liquid and the condensed water.

[0031] 2. The heat exchanger used for condensation recovery has multiple upwardly inclined heat exchange zones formed in the inner space of the heat exchange box through partitions. The condensing tubes are arranged according to the heat exchange zones. Different condensing zones have different condensing temperatures. The condensing tubes are connected to the outer tubes in a way that the corresponding condensing zones can be selected for connection according to the needs of use. The resistance fan that limits the flow of exhaust gas can be used to reduce the flow rate of exhaust gas between the heat exchange zones to ensure the heat exchange effect of the exhaust gas in each zone.

[0032] 3. The heat exchanger used for condensation recovery is provided with a sealing plug at the connection end. When not connected for use, the spring applies force to the sealing plug to ensure the sealing effect of the heat exchange tube. When connected to the outer tube for use, the push block at the end of the outer tube automatically acts on the advance touch rod to push the sealing plug to move and realize the smooth flow of heat exchange medium in the heat exchange tube.

[0033] 4. The heat exchanger used for condensation recovery has a resistance fan extending outside the heat exchange box and connected to a retarder gear. The resistance of the retarder gear is adjusted by a resistance connecting rod and a resistance spring. The resistance of each resistance fan can be adjusted at any time according to usage needs, which facilitates the closed use of the heat exchange interval in different usage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 This is a schematic diagram of the internal partition installation structure of the present invention;

[0037] Figure 3 This is a schematic diagram of the condenser structure of the present invention;

[0038] Figure 4 This is a schematic diagram of the self-closing and triggering structure of the condenser end of the present invention;

[0039] Figure 5 This is a schematic diagram of the resistance fan structure of the present invention;

[0040] Figure 6 It is a schematic diagram of the resistance adjustment structure of the resistance fan of the present invention.

[0041] In the figure: 1. heat exchange box; 2. condenser; 201. heat exchange tube; 202. connection end; 203. outer tube; 3. refrigeration box; 4. partition; 401. partition plate; 402. guide plate; 5. resistance fan; 501. rotating body; 502. retarder gear; 503. resistance connecting rod; 504. resistance spring; 6. liquid storage tank; 7. baffle; 8. heat exchange wing; 9. sealing plug; 10. push block; 11. sealing rubber pad; 12. advance contact rod; 13. tightening spring; 14. grid plate; 15. tightening nut; 16. bump; 17. fixing block; 18. advance rod; 19. outlet pipe; 20. pressure regulating valve. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] The embodiment of the present invention discloses a heat exchanger for condensation recovery;

[0044] According to the attached Figure 1 and attached Figure 2 As shown, it includes a heat exchange box 1, a condenser 2 is arranged on the inner side of the heat exchange box 1, and the end of the condenser 2 is connected to a refrigeration box 3. High-temperature exhaust gas is introduced from the bottom of the heat exchange box 1. The condenser 2 is arranged on the inner side of the heat exchange box 1 to perform heat exchange on the exhaust gas to realize condensation output of some components, and the refrigeration box 3 provides circulation of the condensation medium in the condenser 2.

[0045] The inner wall of the heat exchange box 1 is fixedly provided with a partition 4, which divides the inner space of the heat exchange box 1 into multiple condensation zones. Condensation zones at different stages correspond to condensation extraction of components at different condensation points, and the partition 4 is used to maximize the utilization of the limited space of the heat exchange box 1.

[0046] A resistance fan 5 is closely installed on one side of the partition 4. The resistance fan 5 is set in the middle of adjacent condensation intervals. The lower exhaust gas enters the upper condensation space to continue heat exchange by pushing the rotation of the resistance fan 5. The flow rate and condensation effect of the exhaust gas in each condensation interval are guaranteed by setting the resistance fan 5.

[0047] A liquid storage tank 6 is provided at the end of the partition 4. Liquid droplets condensed in this interval are collected by the liquid storage tank 6 under the action of gravity. The liquid storage tank 6 can also be used to collect the effective components in the liquid and the liquid water for stratified extraction.

[0048] According to the attached Figure 2As shown, the partition 4 includes a partition plate 401, one end of the partition plate 401 is fixedly connected to the left inner wall of the heat exchange box 1, and the other end of the partition plate 401 is fixedly inclined upward along the inner wall of the heat exchange box 1, and a guide plate 402 is fixedly connected in parallel to the inner wall of the heat exchange box 1 and located below the partition plate 401, and a heat exchange channel inclined upward is formed between the partition plate 401 and the guide plate 402.

[0049] The condenser 2 is arranged along the heat exchange channel, and the exhaust gas is continuously introduced from the bottom of the heat exchange channel by utilizing the principle of rising hot gas. The condensing medium in the condenser 2 is transported from top to bottom, and the exhaust gas exchanges heat with the side wall of the condenser 2 as it rises, and the condensing medium is effectively utilized to cool the exhaust gas. After the cooled exhaust gas reaches the component condensation point, it will condense on the side walls of the condenser 2 and the heat exchange box 1, and will be collected in the liquid storage tank 6 under the action of gravity.

[0050] The resistance fan 5 is arranged between the partition plate 401 and the guide plate 402. The resistance fan 5 forms a resistance structure between adjacent heat exchange intervals to limit the flow rate of the exhaust gas in the heat exchange interval, thereby ensuring the cooling and condensation effects in each heat exchange interval.

[0051] The liquid storage tank 6 is fixedly arranged at the bottom of the guide plate 402. The liquid droplets condensed on the side wall of the condenser tube 2 and the heat exchange box 1 flow into the lower liquid storage tank 6 under the action of gravity. The liquid storage tank 6 can also realize stratified extraction of the collected liquid to avoid mixing of the target components in the condensed liquid with liquid water.

[0052] According to the attached Figure 3 As shown, a baffle 7 is fixedly provided on the lower surface of the end of the partition plate 401 and the upper surface of the end of the guide plate 402. The baffle 7 blocks the condensed droplets to prevent the droplets from entering the lower heat exchange interval and being heated by the higher temperature exhaust gas to evaporate repeatedly.

[0053] One end of the guide plate 402 is fixedly connected to the inner wall of the heat exchange box 1, and the partition plate 401 and the guide plate 402 form a meandering heat exchange channel on the inner side of the heat exchange box 1. The formation of the meandering heat exchange channel is beneficial to maximizing the utilization of the limited space of the heat exchange box 1, and is convenient for the condensation collection of multiple target components at the same time, and collecting target components with different condensation points in different heat exchange intervals.

[0054] The condenser 2 includes a heat exchange tube 201, which is extended and installed inside the heat exchange box 1 along the distribution of the partition 4, and the flow direction of the condensing medium in the heat exchange tube 201 is opposite to the exhaust gas conveying direction, which is conducive to fully utilizing the condensing medium for exhaust gas heat exchange.

[0055] The top and bottom ends of the heat exchange tube 201 are fixedly connected to the connection end 202, which penetrates the side wall of the heat exchange box 1 and extends to the outside. The connection end 202 is fixedly connected to the outer tube 203. The outer tube 203 can be used to connect to the adjacent heat exchange interval or the refrigeration box 3, which is convenient for selecting the appropriate use mode of the equipment according to the needs of condensation. Different heat exchange intervals have different set temperatures. The selection according to the needs of use can ensure the condensation effect and reduce the energy consumption of the equipment.

[0056] Heat exchange wings 8 are fixedly arranged on the side of the heat exchange tube 201. The heat exchange wings 8 arranged on the side of the heat exchange tube 201 can effectively increase the effective heat exchange area and ensure the heat exchange efficiency of the equipment by utilizing the property that solid thermal conductivity is better than gas.

[0057] According to the attached Figure 4 As shown, a sealing plug 9 is slidably provided on the inner side of the connection end 202, and the connection end 202 is sealed by the sealing plug 9 to ensure the sealing performance when the connection end 202 is not connected for use.

[0058] A push block 10 is fixedly connected to the sealing plug 9 on the inner side of the end of the outer tube 203. When the outer tube 203 is connected to the connection end 202, the push block 10 at the end of the outer tube 203 automatically pushes the sealing plug 9 forward to facilitate the circulation of the heat exchange medium.

[0059] A sealing rubber pad 11 is provided on the inner wall of the connection end 202 corresponding to the sealing plug 9 , and the sealing rubber pad 11 cooperates with the sealing plug 9 to ensure the sealing effect of the connection end 202 .

[0060] A side surface of the sealing plug 9 is fixedly connected with an advance feeler rod 12 , and the advance feeler rod 12 is used to push the sealing plug 9 to move.

[0061] A tightening spring 13 is sleeved on the side of the advance contact rod 12 , and the tightening spring 13 provides a tightening force to ensure the sealing effect of the sealing plug 9 on the connecting end 202 .

[0062] A mesh plate 14 is fixedly connected to the inner side of the end of the connection end 202, and the carry-in touch rod 12 passes through the mesh plate 14 and extends to the outside of the connection end 202. The mesh plate 14 can position and install the carry-in touch rod 12 on the one hand, and will not hinder the circulation of the medium inside the condenser 2 on the other hand.

[0063] The tightening spring 13 is arranged between the sealing plug 9 and the grid plate 14, and the side threaded connection of the advancing touch rod 12 that passes through one end of the grid plate 14 is provided with a tightening nut 15. By adjusting the installation position of the tightening nut 15 on the side of the advancing touch rod 12, the elastic force applied by the tightening spring 13 to the sealing plug 9 and the advancing distance of the sealing plug 9 when connected to the outer tube 203 are adjusted, thereby ensuring the sealing effect of the sealing plug 9 on the connecting end 202 and ensuring a sufficient advancing distance of the sealing plug 9 to ensure the smooth flow of the condensing medium in the heat exchange tube 201.

[0064] According to the attached Figure 5 As shown, the resistance fan 5 includes a rotating body 501, the rotating shaft of the rotating body 501 passes through the side wall of the heat exchange box 1 and is connected to the bearing therewith, the rotating body 501 forms a sealing effect on the heat exchange channel, and the exhaust gas can only enter the next layer of heat exchange interval by pushing the rotation of the rotating body 501.

[0065] The rotating shaft of the rotating body 501 passes through the side wall of one end of the heat exchange box 1 and is meshed with a slow gear 502. The slow gear 502 applies resistance to the rotating body 501, which cooperates to limit the flow rate of the exhaust gas in the heat exchange box 1 to ensure the heat exchange effect of the exhaust gas.

[0066] The side of the slow gear 502 is rotatably connected to a resistance link 503, and the side of the resistance link 503 is connected to a resistance spring 504. The resistance spring 504 applies a pulling force to the resistance link 503, so that the rotating body 501 is limited by a certain amount of resistance from the resistance link 503 when rotating.

[0067] According to the attached Figure 6 As shown, a protrusion 16 is fixedly connected to the non-axial position of the side of the slow gear 502, one end of the resistance link 503 is rotationally connected to the slow gear 502 through the protrusion 16, and one end of the resistance spring 504 is fixedly connected to the resistance link 503 away from the rotating end.

[0068] The side wall of the heat exchange box 1 is fixedly connected with a fixed block 17, and a carry rod 18 is inserted into the side of the fixed block 17. The resistance spring 504 is fixedly connected to the carry rod 18 at one end away from the rotation. The carry rod 18 is threadedly connected to the fixed block 17. The resistance of the resistance spring 504 to the resistance connecting rod 503 is controlled by adjusting the carry rod 18.

[0069] A derivation pipe 19 is provided through the side wall of the heat exchange box 1 and located at the liquid storage tank 6. A pressure regulating valve 20 is provided on the inner side of the derivation pipe 19. The pressure regulating valve 20 is a valve activated by a set pressure. When the liquid pressure in the liquid storage tank 6 exceeds a certain limit, it automatically starts to discharge the liquid to ensure that the liquid in the liquid storage tank 6 will not overflow into the next layer and cause repeated evaporation.

[0070] The heat exchanger used for condensation recovery has a partition 4 arranged in the heat exchange box 1 to form a zigzag condensation zone, so as to achieve sufficient cooling of the exhaust gas in a relatively small space, and a resistance fan 5 for controlling the gas flow rate is arranged at the outlet of the condensation zone to limit the flow rate of the exhaust gas in the adjacent condensation zone, thereby ensuring the control of the cooling effect of the exhaust gas in the condensation zone and effectively ensuring the sufficient condensation of the condensed components. The multi-layered partitions 4 and the selectively connected condensation tubes 2 facilitate the staged condensation and refining of multiple components at the same time. In addition, a liquid storage tank 6 is arranged at the bottom end of the partition 4, and the structure of the liquid storage tank 6 facilitates the layered output of the condensed liquid and the condensed water.

[0071] Furthermore, the inner space of the heat exchange box 1 forms a plurality of upwardly inclined heat exchange zones through the partition 4, and the condenser tubes 2 are arranged according to the heat exchange zones. Different condensation zones have different condensation temperatures. The condenser tubes 2 adopt a connection method of the heat exchange tube 201 and the outer tube 203. The corresponding condensation zone can be selected for connection according to the needs of use, and cooperated with the resistance fan 5 that limits the flow of exhaust gas to reduce the flow rate of exhaust gas between the heat exchange zones, thereby ensuring the heat exchange effect of the exhaust gas in each zone.

[0072] Furthermore, the connection end 202 is provided with a sealing plug 9, which, when not in use, presses against the spring 13 to apply force to the sealing plug 9 to ensure the sealing effect of the heat exchange tube 201. When the outer tube 203 is connected for use, the push block 10 at the end of the outer tube 203 automatically acts on the advance feeler rod 12 to push the sealing plug 9 to move and realize the smooth flow of the heat exchange medium in the heat exchange tube 201.

[0073] Furthermore, the resistance fan 5 extends outside the heat exchange box 1 and is connected to a retarder gear 502. The resistance of the retarder gear 502 is adjusted by a resistance connecting rod 503 and a resistance spring 504. The resistance of each resistance fan 5 can be adjusted at any time according to usage needs, thereby facilitating the closed use of the heat exchange interval for different usage needs.

[0074] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of 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 to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A heat exchanger for condensation recovery, comprising a heat exchange box (1), a condensing tube (2) and a refrigerating box (3), wherein an air inlet pipe is provided through the bottom of the heat exchange box (1), a condensing tube (2) is provided on the inner side of the heat exchange box (1), and an end of the condensing tube (2) passes through the heat exchange box (1) and is connected to the refrigerating box (3), characterized in that: A partition (4) is fixedly provided on the inner wall of the heat exchange box (1), a resistance fan (5) is provided at the end of the partition (4), a liquid storage tank (6) is opened on the inner side of the partition (4), and the partition (4) divides the heat exchange box (1) into a plurality of independent condensation sections. The exhaust gas drives the resistance fan (5) to rotate and enter the upper condensation space, and the condensed liquid condensed on the side of the partition (4) drips into the liquid storage tank (6).

2. The heat exchanger for condensation recovery according to claim 1, characterized in that: The partition plate (4) comprises a partition plate (401), one end of the partition plate (401) is fixedly connected to the inner wall of one side of the heat exchange box (1), the other end of the partition plate (401) is fixedly arranged along the inner wall of the heat exchange box (1) in an inclined manner upward, a guide plate (402) is fixedly connected in parallel to the inner wall of the heat exchange box (1) and located below the partition plate (401), the resistance fan (5) is arranged between the partition plate (401) and the guide plate (402), and the liquid storage tank (6) is fixedly arranged at the bottom of the guide plate (402).

3. The heat exchanger for condensation recovery according to claim 2, characterized in that: A baffle (7) is fixedly provided on the lower surface of the end of the partition plate (401) and the upper surface of the end of the guide plate (402); one end of the guide plate (402) is fixedly connected to the inner wall of the heat exchange box (1); the partition plate (401) and the guide plate (402) form a meandering cooling channel on the inner side of the heat exchange box (1).

4. The heat exchanger for condensation recovery according to claim 1, characterized in that: The condenser tube (2) comprises a heat exchange tube (201), and the heat exchange tube (201) is installed and extended on the inner side of the heat exchange box (1) along the distribution of the partition (4), and the top and bottom ends of the heat exchange tube (201) are fixedly connected to a connecting end (202), and the connecting end (202) is fixedly connected to an outer tube (203).

5. The heat exchanger for condensation recovery according to claim 4, characterized in that: A heat exchange wing (8) is fixedly provided on the side of the heat exchange tube (201), a sealing plug (9) is slidably provided on the inner side of the connection end (202), and a push block (10) is fixedly connected to the inner side of the end of the outer tube (203) corresponding to the sealing plug (9).

6. The heat exchanger for condensation recovery according to claim 5, characterized in that: The inner wall of the connection end (202) is provided with a sealing rubber pad (11) corresponding to the sealing plug (9), the side of the sealing plug (9) is fixedly connected with an advance contact rod (12), and the side of the advance contact rod (12) is sleeved with a tightening spring (13).

7. The heat exchanger for condensation recovery according to claim 6, characterized in that: A mesh plate (14) is fixedly connected to the inner side of the end of the connection end (202); the advance touch rod (12) passes through the mesh plate (14) and extends outside the connection end (202); the retaining spring (13) is arranged between the sealing plug (9) and the mesh plate (14); and the side of the advance touch rod (12) passing through one end of the mesh plate (14) is threadedly connected to a tightening nut (15).

8. The heat exchanger for condensation recovery according to claim 1, characterized in that: The resistance fan (5) comprises a rotating body (501), the rotating shaft of the rotating body (501) passes through the side wall of the heat exchange box (1) and is connected to the side wall with a bearing, the rotating shaft of the rotating body (501) passes through one end of the side wall of the heat exchange box (1) and is meshed with a slow gear (502), the side of the slow gear (502) is rotatably connected to a resistance connecting rod (503), and the side of the resistance connecting rod (503) is connected to a resistance spring (504).

9. The heat exchanger for condensation recovery according to claim 8, characterized in that: A protrusion (16) is fixedly connected to the non-axial position of the side of the deceleration gear (502); one end of the resistance connecting rod (503) is rotationally connected to the deceleration gear (502) via the protrusion (16); one end of the resistance spring (504) is fixedly connected to the resistance connecting rod (503) away from the rotating end; a fixed block (17) is fixedly connected to the side wall of the heat exchange box (1); a carry rod (18) is inserted into the side of the fixed block (17); and the resistance spring (504) is fixedly connected to the carry rod (18) away from the rotating end.

10. The heat exchanger for condensation recovery according to claim 1, characterized in that: A guide pipe (19) is provided through the side wall of the heat exchange box (1) and located at the liquid storage box (6), and a pressure regulating valve (20) is provided inside the guide pipe (19).

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