Plate-fin heat exchanger with condensate evacuation function

By introducing angle adjustment components, air intake detection components, venting control components, and cleaning control components into the plate-fin heat exchanger, the automation problems of steam exhaust gas emission and heat exchange tube cleaning are solved, thereby improving the service life and operating efficiency of the equipment.

CN120991625BActive Publication Date: 2026-02-13CHANGZHOU ANDIVE HEAT EXCHANGER CO LTD
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Patent Information

Application Number
CN202511537904.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-10-27
Publication Date
2026-02-13
Estimated Expiration
2045-10-27

AI Technical Summary

Technical Problem

Existing plate-fin heat exchangers are not convenient for automatic venting and drying when steam stops being emitted, and it is also inconvenient for staff to clean the heat exchange pipes without interrupting the steam flow. This can easily lead to corrosion and scale accumulation, affecting the efficiency of steam exhaust gas emission.

Method used

A plate-fin heat exchanger with condensate drainage function was designed. It adopts angle adjustment component, air inlet detection component, venting control component and cleaning control component to realize automatic control of steam exhaust gas discharge and heat exchange tube cleaning, avoiding the risks and inconveniences of manual operation.

Benefits of technology

It enables automatic control of steam exhaust and heat exchange tube cleaning, improving the service life of heat exchange tubes and anti-scaling effect, and ensuring the continuity and safety of the heat exchanger.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The application discloses a plate-fin heat exchanger with a condensate water emptying function, and relates to the technical field of heat exchangers; the plate-fin heat exchanger comprises a heat exchange mounting piece, an angle adjusting piece is mounted on the heat exchange mounting piece, and the angle adjusting piece is used for adjusting the air inlet angle; an air inlet detecting piece is mounted on the heat exchange mounting piece; the air inlet detecting piece is used for controlling air blowing and dehumidification; an emptying control piece is mounted at the bottom of the heat exchange mounting piece; the emptying control piece is used for controlling emptying of the heat exchange mounting piece; a cleaning control piece is mounted on the air inlet detecting piece; the air inlet detecting piece can realize automatic control; when the boiler is shut down for maintenance or paused, the steam tail gas pipe connected with the air inlet pipe stops discharging, and the heat exchange pipe is protected by being emptied and air dried; thus, the problems that the plate-fin heat exchanger cannot be automatically controlled to automatically empty and air dry the plate-fin heat exchanger when steam stops discharging and that the staff cannot clean the heat exchange pipeline without stopping air supply are solved.
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Description

TECHNICAL FIELD

[0001] The present application relates to heat exchanger technical field, specifically to a plate-fin heat exchanger with condensate water emptying function. BACKGROUND

[0002] In the actual steam tail gas discharge of devices such as boilers, it is usually necessary to cool it first, reduce the water content of the discharge gas, at this time, the plate-fin heat exchanger is needed to assist cooling, the current plate-fin heat exchanger is not convenient to adjust the wind power concentration position, the initial stage condensation effect is poor, and it is also not convenient to automatically control the automatic emptying of the air-drying heat exchanger heat exchange pipeline when the steam stops discharging, when the heat exchanger contains part of the steam, the closed time is too long, which is easy to increase the corrosion, and it is also not convenient for the workers to clean the heat exchange pipeline without stopping the air, directly stopping the air will directly affect the steam tail gas discharge, and the operation is complicated when cleaning, and it is not convenient to maintain the pipeline scale prevention effect.

[0003] Therefore, the present application provides a plate-fin heat exchanger with condensate water emptying function. SUMMARY

[0004] The present application aims to provide a plate-fin heat exchanger with condensate water emptying function to solve the problem of the current plate-fin heat exchanger which is not convenient to automatically control the automatic emptying of the air-drying plate-fin heat exchanger when the steam stops discharging, and is not convenient for the workers to clean the heat exchange pipeline without stopping the air.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a plate-fin heat exchanger with condensate water emptying function, comprising a heat exchange mounting piece, an angle adjusting piece is installed on the heat exchange mounting piece, and the angle adjusting piece is used for adjusting the air inlet angle; an air inlet detection piece is installed on the heat exchange mounting piece; the air inlet detection piece is used for controlling the air blowing dehumidification; an emptying control piece is installed at the bottom of the heat exchange mounting piece; the emptying control piece is used for controlling the emptying of the heat exchange mounting piece; a cleaning control piece is installed on the air inlet detection piece; the cleaning control piece is used for controlling the cleaning without stopping the machine; the heat exchange mounting piece comprises a heat exchange mounting frame and a heat exchange pipe, two heat exchange pipes are fixedly installed on the heat exchange mounting frame, and the two heat exchange pipes are symmetrically installed.

[0006] Preferably, the heat exchange mounting piece further comprises a discharge pipe and a plate-fin, a discharge pipe is fixedly installed on each of the two heat exchange pipes, and a flange is arranged at the end of the discharge pipe; a spacing is arranged between the end of the heat exchange pipe and the discharge pipe; a row of plate-fins is fixedly installed inside the heat exchange mounting frame; the two heat exchange pipes respectively pass through a row of plate-fins.

[0007] Preferably, the angle adjusting piece comprises: an adjusting mounting frame, an adjusting guide plate and a fastening bolt, the adjusting mounting frame is fixedly installed at the back of the heat exchange mounting rack; the adjusting mounting frame is provided with a threaded hole; the adjusting mounting frame is used for being installed on the heat exchange fan shell through the bolt; the adjusting mounting frame is internally attached with a row of adjusting guide plates; the two ends of the row of adjusting guide plates are respectively inserted with the fastening bolts; the two ends of the fastening bolts are respectively threadedly connected to the adjusting mounting frame, and the fastening bolts are used for tightly fixing the adjusting guide plates.

[0008] Preferably, the air inlet detection piece comprises: an air inlet detection shell, a guide cylinder, a fan pipe and an air inlet pipe, the air inlet detection shell is fixedly installed at the ends of the two heat exchange pipes; two guide cylinders are fixedly installed in the air inlet detection shell, and the two guide cylinders are respectively aligned with the two heat exchange pipes; the fan pipe is fixedly installed on the air inlet detection shell, and the fan pipe is provided with an electromagnetic valve; the fan pipe is externally connected with an electric fan; the air inlet pipe is fixedly installed on the air inlet detection shell; and the air inlet pipe is used for being connected to the steam tail gas pipe.

[0009] Preferably, the air inlet detection piece further comprises: an air inlet switch, a spring frame, a shielding column and a stop ring, the air inlet pipe is internally fixedly installed with the air inlet switch; the air inlet pipe is internally fixedly installed with the spring frame, and the spring frame is provided with a row of through holes; the shielding column is slidably inserted on the air inlet switch, and the shielding column is externally sleeved with a spring, and the spring is connected between the shielding column and the spring frame; the end of the shielding column is in a bevel structure; the stop ring is fixedly sleeved in the air inlet pipe, and the end of the shielding column is extruded and attached to the stop ring; the end of the shielding column is extruded to the air inlet switch; the air inlet switch is electrically connected with the electromagnetic valve on the fan pipe and the electric fan externally connected with the fan pipe.

[0010] Preferably, the emptying control piece comprises: an emptying installation shell and a liquid level switch, the top of the emptying installation shell is fixedly installed at the bottoms of the two heat exchange pipes through a three-way pipe; the emptying installation shell is communicated with the bottoms of the two heat exchange pipes; the liquid level switch is fixedly installed in the emptying installation shell through a support.

[0011] Preferably, the emptying control piece further comprises: a floating block and a drain pipe, the floating block is slidably sleeved in the emptying installation shell, and the floating block is located below the liquid level switch; the floating block is used for being controlled to float up by the condensed water; the bottom of the emptying installation shell is fixedly installed with two drain pipes, and the two drain pipes are respectively provided with electromagnetic valves; the liquid level switch is electrically connected with the electromagnetic valve on the left drain pipe; the air inlet switch is electrically connected with the electromagnetic valve on the right drain pipe.

[0012] Preferably, the cleaning control piece comprises: a cleaning winding wheel and winding ropes, the cleaning winding wheel is rotatably installed on the air inlet detection shell; the end of the cleaning winding wheel penetrates through the air inlet detection shell; the end of the cleaning winding wheel is provided with a handle; two winding ropes are fixedly installed on the cleaning winding wheel and are wound on the cleaning winding wheel.

[0013] Preferably, the cleaning control piece further comprises: an inner cylinder, a tension spring and an outer cylinder, the two winding ropes are respectively fixedly provided with the inner cylinder, and the outer cylinder is slidably sleeved on the inner cylinder; a ring of through grooves is arranged on the inner cylinder; the tension spring is sleeved on the inner cylinder and connected between the inner cylinder and the outer cylinder; the ring of through grooves on the inner cylinder is used to be blocked by the outer cylinder.

[0014] Preferably, the cleaning control piece further comprises: a sponge ball, the two outer cylinders are respectively fixedly sleeved with the sponge ball, and the two sponge balls are respectively sleeved on the inner sides of the two guide cylinders; the sponge ball is used to be pushed to the end of the heat exchange pipe by air pressure.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] The present application can realize automatic control of detecting condensate and controlling drainage, avoid over-drainage, and also avoid over-drainage caused by manual operation of draining condensate, which is easy to cause steam tail gas to be discharged, and is also easy to scald the workers. The present application can realize automatic control of stopping the steam tail gas pipe connected to the air inlet pipe to stop discharging air when the boiler is shut down for maintenance or suspended, and can realize the protection of the heat exchange pipe by emptying and air drying, which can avoid the further corrosion of the static water vapor and condensate remaining in the heat exchange pipe, and can improve the service life of the heat exchange pipe. The automatic control of air venting can avoid manual forgetting, and the structure is more reasonable and can realize forced control.

[0017] The cleaning control piece can facilitate the workers to quickly control the cleaning of the heat exchange pipe without stopping the air, can maintain the anti-scale effect of the heat exchange pipe in actual use, can facilitate the real-time venting of the heat exchange pipe, can ensure the continuity of heat exchange, and can avoid frequent start-stop of the heat exchange pipe. The structure is simple to operate, the inner cylinder can automatically release pressure when pulled back, and the airflow is smooth.

[0018] The angle adjusting piece can facilitate the adjustment of the air inlet angle, can promote the wind of the heat exchange fan to be more concentrated below the heat exchange pipe, that is, at the initial stage air inlet, can promote the steam tail gas to be condensed faster at the initial stage, can facilitate quick collection, and the structure is more reasonable and can reduce the corrosion of the upper section of the heat exchange pipe. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of a plate-fin heat exchanger with a condensate emptying function;

[0020] Figure 2 A plate-fin heat exchanger bottom structure with condensate water emptying function of the present application;

[0021] Figure 3 A plate-fin heat exchanger internal structure sectional view with condensate water emptying function of the present application;

[0022] Figure 4 A heat exchange installation structure schematic diagram of the present application;

[0023] Figure 5 A plate-fin heat exchanger bottom structure with condensate water emptying function of the present application; Figure 2 A B area structure enlargement of the present application;

[0024] Figure 6 A gas inlet detection structure schematic diagram of the present application;

[0025] Figure 7 A plate-fin heat exchanger bottom structure with condensate water emptying function of the present application; Figure 3 A C area structure enlargement of the present application;

[0026] Figure 8 An emptying control structure schematic diagram of the present application;

[0027] Figure 9 A cleaning control structure schematic diagram of the present application;

[0028] Figure 10 A plate-fin heat exchanger bottom structure with condensate water emptying function of the present application; Figure 6 An E area structure enlargement of the present application;

[0029] Figure 11 An inner cylinder installation position schematic diagram of the present application.

[0030] In the figure: 1, heat exchange installation; 101, heat exchange installation frame; 102, heat exchange pipe; 1021, discharge pipe; 103, plate-fin; 2, angle adjusting piece; 201, adjusting installation frame; 202, adjusting flow guide plate; 203, fastening bolt; 3, gas inlet detection piece; 301, gas inlet detection shell; 3011, guide cylinder; 3012, fan pipe; 302, gas inlet pipe; 303, gas inlet switch; 304, spring frame; 305, shielding column; 306, stop ring; 4, emptying control piece; 401, emptying installation shell; 402, liquid level switch; 403, floating block; 404, drain pipe; 5, cleaning control piece; 501, cleaning winding wheel; 502, winding rope; 503, inner cylinder; 5031, tension spring; 504, outer cylinder; 505, sponge ball. DETAILED DESCRIPTION

[0031] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of the present application.

[0032] Embodiment one: please refer to Figures 1 to 11 As shown in the figure:

[0033] The present application provides a technical scheme: a plate-fin heat exchanger with condensate water emptying function, comprising a heat exchange mounting piece 1, an angle adjusting piece 2 is installed on the heat exchange mounting piece 1, the angle adjusting piece 2 is used for adjusting the air inlet angle; The air inlet detection piece 3 is installed on the heat exchange mounting piece 1; The air inlet detection piece 3 is used for controlling the blowing dehumidification; The emptying control piece 4 is installed at the bottom of the heat exchange mounting piece 1; The emptying control piece 4 is used for controlling the emptying of the heat exchange mounting piece 1; The cleaning control piece 5 is installed on the air inlet detection piece 3; The cleaning control piece 5 is used for controlling the cleaning without stopping; The heat exchange mounting piece 1 comprises: a heat exchange mounting frame 101 and a heat exchange pipe 102, two heat exchange pipes 102 are fixedly installed on the heat exchange mounting frame 101, and the two heat exchange pipes 102 are symmetrically installed.

[0034] Among them, the heat exchange mounting piece 1 further comprises: a discharge pipe 1021 and a plate fin 103, two heat exchange pipes 102 are respectively fixedly installed with a discharge pipe 1021, and the end of the discharge pipe 1021 is provided with a flange; The heat exchange pipe 102 end and the discharge pipe 1021 are provided with a spacing; A row of plate fins 103 are fixedly installed inside the heat exchange mounting frame 101; Two heat exchange pipes 102 respectively pass through a row of plate fins 103; The angle adjusting piece 2 comprises: an adjusting installation frame 201, an adjusting guide plate 202 and a fastening bolt 203, the adjusting installation frame 201 is fixedly installed on the back of the heat exchange mounting frame 101; The adjusting installation frame 201 is provided with a threaded hole; The adjusting installation frame 201 is used for being installed on the heat exchange fan shell through the bolt; A row of adjusting guide plates 202 are attached inside the adjusting installation frame 201; A row of adjusting guide plates 202 are respectively inserted with a fastening bolt 203 at both ends; Two fastening bolts 203 are respectively threadedly connected on the adjusting installation frame 201, and the fastening bolt 203 is used for tightly adjusting the position of the adjusting guide plate 202, the angle adjusting piece 2 can be used to adjust the air inlet angle, promote the wind force of the heat exchange fan to be more concentrated below the heat exchange pipe 102, that is, the initial stage air inlet, promote the steam tail gas to be condensed faster in the initial stage, facilitate rapid collection, the structure is more reasonable, reduce the corrosion of the upper segment of the heat exchange pipe 102, the angle of the adjusting guide plate 202 can be adjusted by loosening the fastening bolt 203 with a wrench, and then the fastening bolt 203 can be tightened.

[0035] The air inlet detection member 3 comprises: an air inlet detection shell 301, a guide cylinder 3011, a fan pipe 3012, and an air inlet pipe 302. The air inlet detection shell 301 is fixedly installed at the end of the two heat exchange pipes 102. Two guide cylinders 3011 are fixedly installed inside the air inlet detection shell 301, and the two guide cylinders 3011 are aligned with the two heat exchange pipes 102, respectively. The fan pipe 3012 is fixedly installed on the air inlet detection shell 301, and an electromagnetic valve is arranged on the fan pipe 3012. An electric fan is connected to the fan pipe 3012. The air inlet detection shell 301 is fixedly installed with the air inlet pipe 302. The air inlet pipe 302 is used to connect the vapor tail gas pipe. The air inlet detection member 3 further comprises: an air inlet switch 303, a spring frame 304, a shielding column 305, and a stop ring 306. The air inlet switch 303 is fixedly installed inside the air inlet pipe 302. The spring frame 304 is fixedly installed inside the air inlet pipe 302, and a circle of through holes is arranged on the spring frame 304. The shielding column 305 is slidingly inserted into the air inlet switch 303, and a spring is sleeved outside the shielding column 305. The spring is connected between the shielding column 305 and the spring frame 304. The end of the shielding column 305 is in a beveled structure. The stop ring 306 is fixedly sleeved inside the air inlet pipe 302, and the end of the shielding column 305 is extruded and attached to the stop ring 306. The end of the shielding column 305 is extruded to the air inlet switch 303. The air inlet switch 303 is electrically connected to the electromagnetic valve on the fan pipe 3012 and the electric fan connected to the fan pipe 3012. The emptying control member 4 comprises: an emptying installation shell 401 and a liquid level switch 402. The emptying installation shell 401 is fixedly installed at the bottom of the two heat exchange pipes 102 through a three-way pipe. The emptying installation shell 401 is connected to the bottom of the two heat exchange pipes 102. The liquid level switch 402 is fixedly installed inside the emptying installation shell 401 through a support. The emptying control member 4 further comprises: a floating block 403 and a drain pipe 404. The floating block 403 is slidingly sleeved inside the emptying installation shell 401, and is located below the liquid level switch 402. The floating block 403 is used to be controlled to float by the condensed water. Two drain pipes 404 are fixedly installed at the bottom of the emptying installation shell 401, and an electromagnetic valve is arranged on each of the two drain pipes 404. The two drain pipes 404 are respectively connected with a hose to discharge the condensed water. The liquid level switch 402 is electrically connected to the electromagnetic valve on the left drain pipe 404.The air inlet switch 303 is electrically connected to the electromagnetic valve on the right side of the drain pipe 404. The emptying control member 4 can realize automatic control of detecting condensed water and then controlling drainage to avoid excessive accumulation of water. At the same time, it also avoids the possibility that manual operation of draining condensed water may cause excessive drainage of exhaust steam and may also cause burns to the workers. The structure realizes automatic control to ensure smooth airflow and avoids manual forgetfulness. In combination with the air inlet detection member 3, it can realize automatic control. When the boiler is shut down for maintenance or suspended, the steam exhaust pipe connected to the air inlet pipe 302 stops exhausting, and the heat exchange pipe 102 is protected by emptying and air drying. This avoids the further corrosion caused by the static water vapor and condensed water remaining in the heat exchange pipe 102, which can improve the service life of the heat exchange pipe 102. At the same time, the automatic control of air venting avoids manual forgetfulness, and the structure is more reasonable. It realizes forced control and can be more suitable for small boiler production and use. If the air inlet pipe 302 stops air inlet, the air pressure acting on the blocking column 305 decreases, which can push the blocking column 305 back to the stop ring 306 and extrude the air inlet switch 303 through the spring on the blocking column 305. At this time, the air inlet switch 303 can control the electromagnetic valve on the fan pipe 3012 to open. The fan connected to the fan pipe 3012 also starts to provide air power. At the same time, the electromagnetic valve on the right side of the drain pipe 404 is opened to assist in completely emptying the condensed water. With the continuous air power provided by the fan connected to the fan pipe 3012, the two heat exchange pipes 102 can be air dried.

[0036] In example two, on the basis of example one, the cleaning control member 5 comprises: a cleaning winding wheel 501 and winding ropes 502, the cleaning winding wheel 501 is rotatably installed on the air inlet detection shell 301; the end of the cleaning winding wheel 501 penetrates through the air inlet detection shell 301; the end of the cleaning winding wheel 501 is provided with a handle; the cleaning winding wheel 501 is fixedly installed with two winding ropes 502, and the two winding ropes 502 are wound on the cleaning winding wheel 501; the cleaning control member 5 further comprises: an inner cylinder 503, a tension spring 5031 and an outer cylinder 504, the two winding ropes 502 are respectively fixedly installed with the inner cylinder 503, and the outer cylinder 504 is slidably sleeved on the inner cylinder 503; the inner cylinder 503 is provided with a ring of through grooves; the outer cylinder 504 is internally sleeved with the tension spring 5031, and the tension spring 5031 is connected between the inner cylinder 503 and the outer cylinder 504; the ring of through grooves on the inner cylinder 503 is used to be blocked by the outer cylinder 504; the cleaning control member 5 further comprises: a sponge ball 505, the two outer cylinders 504 are respectively fixedly sleeved with the sponge ball 505, and the two sponge balls 505 are respectively sleeved inside the two guide cylinders 3011; the sponge ball 505 is used to be pushed to the end of the heat exchange pipe 102 by the air pressure, and the cleaning control member 5 can be used to quickly control the non-stop air cleaning of the heat exchange pipe 102 by the staff, maintain the anti-scale effect of the heat exchange pipe 102 in actual use, can be used to maintain the real-time ventilation and discharge of the inside of the heat exchange pipe 102, can ensure the heat exchange continuity, and at the same time avoid frequent start-stop switching of the heat exchange pipe 102, the structure is simple to operate, the inner cylinder 503 can be used to automatically release pressure when pulling back, maintain smooth airflow, manually rotate the cleaning winding wheel 501 to wind the winding rope 502, at this time, the inner cylinder 503 can be pulled to drive the sponge ball 505 to move in the heat exchange pipe 102, the steam tail gas pressure in the heat exchange pipe 102 pushes the sponge ball 505 to move and clean, can drive the outer cylinder 504 to move and lengthen the tension spring 5031, at this time, the outer cylinder 504 no longer completely blocks the through grooves on the inner cylinder 503, uses the through grooves on the inner cylinder 503 to ventilate, and avoids blocking the steam tail gas in the heat exchange pipe 102.

[0037] The working principle of the embodiment is as follows: firstly, the air inlet pipe 302 is butted against the steam tail gas pipe, the mounting frame 201 is adjusted and bolted on the heat exchange fan shell, along with the flow of steam tail gas in the heat exchange pipe 102, the wind power provided by the heat exchange fan can be used for heat exchange with the plate fin 103, so as to promote the condensation of steam tail gas, and the core wind power generated by the heat exchange fan can be guided by adjusting the guide plate 202, so as to promote the wind power to concentrate on the initial section of the heat exchange pipe 102 and improve the heat exchange effect of the initial section. By loosening the fastening bolt 203 with a wrench, the angle of the adjusting guide plate 202 can be adjusted, and then the fastening bolt 203 is tightened; the condensed water condensed in the two heat exchange pipes 102 will be guided into the air inlet detection shell 301 under the action of gravity. When the liquid level in the air inlet detection shell 301 rises, the float 403 is controlled to float up by the condensed water, and the liquid level switch 402 is squeezed, so that the electromagnetic valve on the left side of the drain pipe 404 is opened by the liquid level switch 402 to automatically drain the condensed water. When the liquid level in the air inlet detection shell 301 decreases, the float 403 no longer squeezes the liquid level switch 402, so that the electromagnetic valve on the left side of the drain pipe 404 is closed to prevent leakage. At the same time, when the steam tail gas pipe is connected to the air inlet pipe 302, the air pressure pushes the shielding column 305 and the stop ring 306 to separate, so as to ensure the air inlet. The shielding column 305 no longer squeezes the air inlet switch 303, so that the air inlet switch 303 controls the electromagnetic valve on the fan pipe 3012 and the electromagnetic valve on the right side of the drain pipe 404 to remain closed. Conversely, if the air inlet pipe 302 stops air inlet, the air pressure acting on the shielding column 305 decreases, so that the shielding column 305 is pushed back to the stop ring 306 by the spring on the shielding column 305 and squeezes the air inlet switch 303. At this time, the air inlet switch 303 controls the electromagnetic valve on the fan pipe 3012 to be opened, and the fan connected to the fan pipe 3012 also starts to provide wind power, and the electromagnetic valve on the right side of the drain pipe 404 is controlled to be opened to assist in completely draining the condensed water. With the continuous wind power provided by the fan connected to the fan pipe 3012, the two heat exchange pipes 102 can be dried.The initial position of the sponge ball 505 is on the upper end of the heat exchange pipe 102, because there is a gap between the upper end of the heat exchange pipe 102 and the exhaust pipe 1021, which does not affect the normal exhaust of the exhaust pipe 1021. When subsequent cleaning of the heat exchange pipe 102 is required, the cleaning winding wheel 501 is directly manually rotated to wind the winding rope 502 arranged. At this time, the inner cylinder 503 can be pulled to move the sponge ball 505 in the heat exchange pipe 102. The steam tail gas pressure inside the heat exchange pipe 102 pushes the sponge ball 505 to move, which can drive the outer cylinder 504 to move and lengthen the tension spring 5031. At this time, the outer cylinder 504 no longer completely blocks the through slot on the inner cylinder 503, and the through slot on the inner cylinder 503 is used for ventilation, so as to avoid that the steam tail gas inside the heat exchange pipe 102 is blocked. When the sponge ball 505 is pulled to the guide cylinder 3011, the cleaning winding wheel 501 can be manually and quickly released. Under the action of the gas pressure in the heat exchange pipe 102, the sponge ball 505 together with the inner cylinder 503 can be pushed to slide to the upper end of the heat exchange pipe 102. In this process, the heat exchange pipe 102 can also be wiped and cleaned.

[0038] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A plate-fin heat exchanger with condensate drainage function, comprising a heat exchange mounting member (1), an angle adjusting member (2) is mounted on the heat exchange mounting member (1), characterized in that: The angle adjusting piece (2) is used for adjusting the air inlet angle; the heat exchange mounting piece (1) is provided with an air inlet detecting piece (3); the air inlet detecting piece (3) is used for controlling air blowing dehumidification; The heat exchange mounting piece (1) is provided with an emptying control piece (4) at the bottom; the emptying control piece (4) is used for controlling emptying of the heat exchange mounting piece (1); The air inlet detecting piece (3) is provided with a cleaning control piece (5); the cleaning control piece (5) is used for controlling cleaning without stopping the machine; The heat exchange mounting piece (1) comprises a heat exchange mounting frame (101) and heat exchange pipes (102), and two heat exchange pipes (102) are fixedly installed on the heat exchange mounting frame (101); The air inlet detecting piece (3) comprises an air inlet detecting shell (301), guide cylinders (3011), a fan pipe (3012) and an air inlet pipe (302), the air inlet detecting shell (301) is fixedly installed at the ends of the two heat exchange pipes (102), two guide cylinders (3011) are fixedly installed inside the air inlet detecting shell (301), and the two guide cylinders (3011) are aligned with the two heat exchange pipes (102) respectively, the fan pipe (3012) is fixedly installed on the air inlet detecting shell (301), and an electromagnetic valve is arranged on the fan pipe (3012), an electric fan is connected to the fan pipe (3012), and the air inlet pipe (302) is fixedly installed on the air inlet detecting shell (301); The air inlet detecting piece (3) further comprises an air inlet switch (303), a spring frame (304), a shielding column (305) and a stop ring (306), the air inlet switch (303) is fixedly installed inside the air inlet pipe (302), the spring frame (304) is fixedly installed inside the air inlet pipe (302), and a plurality of through holes are arranged on the spring frame (304), the shielding column (305) is slidably inserted into the air inlet switch (303), springs are sleeved outside the shielding column (305), and the springs are connected between the shielding column (305) and the spring frame (304), the end of the shielding column (305) is provided with a bevel structure, the stop ring (306) is fixedly sleeved inside the air inlet pipe (302), and the end of the shielding column (305) is pressed and attached to the stop ring (306), the end of the shielding column (305) is pressed against the air inlet switch (303), and the air inlet switch (303) is electrically connected to the electromagnetic valve on the fan pipe (3012) and the electric fan connected to the fan pipe (3012); The emptying control piece (4) comprises an emptying mounting shell (401) and a liquid level switch (402), the emptying mounting shell (401) is fixedly installed at the bottoms of the two heat exchange pipes (102) through a three-way pipe at the top, the emptying mounting shell (401) is communicated with the bottoms of the two heat exchange pipes (102), and the liquid level switch (402) is fixedly installed inside the emptying mounting shell (401) through a support. The emptying control piece (4) further comprises: a float (403) and a drain pipe (404), the float (403) is sleeved in the emptying installation shell (401), and the float (403) is located below the liquid level switch (402); the float (403) is used for being controlled to float up by condensed water; two drain pipes (404) are fixedly installed at the bottom of the emptying installation shell (401), and an electromagnetic valve is arranged on each of the two drain pipes (404); the liquid level switch (402) is electrically connected with the electromagnetic valve on the left drain pipe (404); the air inlet switch (303) is electrically connected with the electromagnetic valve on the right drain pipe (404); The cleaning control piece (5) comprises: a cleaning winding wheel (501) and a winding rope (502), the cleaning winding wheel (501) is rotatably installed on the air inlet detection shell (301); the end of the cleaning winding wheel (501) penetrates through the air inlet detection shell (301); the end of the cleaning winding wheel (501) is provided with a handle; two winding ropes (502) are fixedly installed on the cleaning winding wheel (501), and the two winding ropes (502) are wound on the cleaning winding wheel (501).

2. The plate-fin heat exchanger with condensate drainage function according to claim 1, characterized in that: The heat exchange installation piece (1) further comprises: a discharge pipe (1021) and a plate fin (103), two heat exchange pipes (102) are respectively fixedly provided with a discharge pipe (1021), and the end of the discharge pipe (1021) is provided with a flange; a spacing is arranged between the end of the heat exchange pipe (102) and the discharge pipe (1021); one row of plate fins (103) is fixedly installed in the heat exchange mounting frame (101); two heat exchange pipes (102) respectively penetrate through one row of plate fins (103).

3. The plate-fin heat exchanger with condensate drainage function according to claim 1, characterized in that: The angle adjusting piece (2) comprises: an adjusting installation frame (201), an adjusting guide plate (202) and a fastening bolt (203), the adjusting installation frame (201) is fixedly installed at the back of the heat exchange mounting frame (101); the adjusting installation frame (201) is provided with a threaded hole; the adjusting installation frame (201) is used for being installed on the heat exchange fan shell through a bolt; one row of adjusting guide plates (202) is attached to the inside of the adjusting installation frame (201); one end of the adjusting guide plate (202) is respectively inserted with a fastening bolt (203); the ends of the two fastening bolts (203) are respectively threadedly connected on the adjusting installation frame (201), and the fastening bolt (203) is used for tightly fixing the adjusting guide plate (202).

4. The plate-fin heat exchanger with condensate drainage function according to claim 1, characterized in that: The cleaning control piece (5) further comprises: an inner cylinder (503), a tension spring (5031) and an outer cylinder (504), two ends of the winding rope (502) are respectively fixedly provided with an inner cylinder (503), and an outer cylinder (504) is sleeved on the inner cylinder (503); a row of through grooves are arranged on the inner cylinder (503); the inner cylinder (503) is sleeved with a tension spring (5031) on the inside of the outer cylinder (504), and the tension spring (5031) is connected between the inner cylinder (503) and the outer cylinder (504).

5. The plate-fin heat exchanger with condensate drainage function according to claim 4, characterized in that: The cleaning control piece (5) further comprises sponge balls (505), two outer sleeves (504) are respectively fixed with sponge balls (505), and the two sponge balls (505) are respectively sleeved on the inner sides of the two guide sleeves (3011).

Citation Information

Patent Citations

  • Heat exchanger and wall hanging furnace therewith

    CN109269112A

  • Steam condensate waste heat recovery system without drain valve and waste heat recovery method

    CN117029547A