Adjustable energy saver with large heat exchange area

By introducing adjustable louvers and curved air intake slide structures into the energy saver, the problems of air volume regulation and condensate collection are solved, thereby improving heat exchange efficiency and boiler stability.

CN224121765UActive Publication Date: 2026-04-14HENGSHUI XINDE CHEM ANTI CORROSION EQUIP TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENGSHUI XINDE CHEM ANTI CORROSION EQUIP TECH
Filing Date
2025-05-19
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The existing economizer cannot adjust the air volume, so the hot steam generated by the boiler cannot be effectively guided into the economizer for heat exchange, and the condensed liquid is not easy to collect, which affects the continuous use of the boiler.

Method used

An adjustable large heat exchange area energy-saving device was designed, which includes an air inlet bucket with louvers and a curved air inlet slide. Combined with a worm gear structure, it realizes steam flow regulation and collects condensate through a water storage tank to avoid backflow and increase the heat exchange area and path.

Benefits of technology

It enables flexible adjustment of hot steam flow, enhances heat exchange efficiency, avoids condensate backflow, and improves the boiler's operational stability and heat recovery efficiency.

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Abstract

The utility model relates to the technical field of energy savers, in particular to an adjustable energy saver with a large heat exchange area, which comprises a fixed seat and a heat exchange box arranged above the fixed seat, an air inlet hopper used for adjusting air inlet flow is arranged at the left end of the heat exchange box, and a water storage tank used for collecting condensate water is arranged at the right end of the heat exchange box. A plurality of air inlet slideways are formed in the left end of the heat exchange box, and a hollow area between the inner wall and the outer wall of the heat exchange box is a liquid storage bin; according to the adjustable large-heat-exchange-area energy saver, the air inlet hopper is provided with a plurality of louver blades, a worm matched with a rotating rod is meshed with worm wheels on the louver blades, a screwing handle rotates to drive the louver blades to rotate in the direction to be adjusted, then the flow of hot steam introduced into the air inlet hopper is adjusted, a plurality of air inlet sliding ways are matched in the heat exchange box, the air inlet sliding ways are in a curved shape, the contact area is increased, and the heat exchange efficiency is improved. The passing path is prolonged, under the cooperation of the water storage tank, condensed water drops after heat exchange are collected, and the exhaust pipe guides tail gas to be exhausted.
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Description

Technical Field

[0001] This utility model relates to the field of energy-saving device technology, specifically an adjustable large heat exchange area energy-saving device. Background Technology

[0002] An energy saver is a device that optimizes the heat exchange process to achieve efficient energy utilization. Its core function is to reduce energy consumption and improve heat recovery efficiency. A boiler is an energy conversion device. The hot water or steam produced in the boiler can directly provide the heat energy needed for industrial production and people's lives. Boilers often use energy savers to recover heat energy.

[0003] Utility model patent CN219415865U discloses an energy-saving heat exchanger, including a processing box. Connecting rods are uniformly and vertically welded downwards to the bottom surface of the processing box. Matching boxes are horizontally bolted to both the top and bottom surfaces of the processing box. A feed pipe is fixedly inserted into the bottom surface of one of the matching boxes. A connecting groove is uniformly opened on one side of each matching box. A discharge pipe is fixedly inserted into the top surface of one of the matching boxes. A connecting pipe is horizontally fixedly inserted into one side of each processing box. A material injection pipe is horizontally fixedly inserted into one side of each processing box. Inner partition plates are uniformly welded to the inner side of the processing box, and transmission pipes are horizontally inserted between the inner partition plates.

[0004] The above technical solution adopts an integrated structure, which makes it more convenient to use. At the same time, the combination of impact-type rotating heat dissipation structure effectively utilizes impact energy and greatly saves energy. However, the energy saver cannot adjust the amount of air passing through, and the hot steam generated by the boiler cannot be guided into the energy saver for heat exchange and recovery. In addition, the liquid after steam condensation is not convenient to collect and the backflow affects the continuous use of the boiler. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable large heat exchange area energy-saving device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An adjustable large heat exchange area energy saver includes a fixed base and a heat exchange box installed above the fixed base. The left end of the heat exchange box is provided with an air inlet bucket for adjusting the air inlet flow rate, and the right end of the heat exchange box is provided with a water storage tank for collecting condensate. Several air inlet slides are opened on the left end of the heat exchange box, and the hollow area between the inner wall and the outer wall of the heat exchange box is a liquid storage tank.

[0008] The air intake hopper has a positioning frame inside, and the positioning frame has several louvers that fit tightly against the sides. Each louver has a rotating shaft in the middle. One end of the rotating shaft passes through the positioning frame and the other end has a worm gear. The outer ring of the worm gear has a locking block in the middle. The top of the air intake hopper has a limiting frame, and the limiting frame has a rotating rod in the middle that corresponds to the rotating shaft. Each rotating rod has a worm corresponding to the worm gear, and the worm meshes with the corresponding worm gear.

[0009] The water storage tank has an exhaust pipe on its right end face, an air intake pipe on its left end face, and an exhaust pipe connected to the interior is located near the bottom of the front end face of the water storage tank.

[0010] Furthermore, a support plate is provided on the upper surface of the fixed base near the left end, and the top of the support plate is in close contact with the lower surface of the heat exchange box.

[0011] In this invention, the support plate lifts the left end of the heat exchange box, increasing the stability of the heat exchange box when placed vertically and reducing the amount of cooling water that could cause the left end of the heat exchange box to tip over under gravity, affecting its placement and use.

[0012] Specifically, the bottom of the water storage tank is fixedly connected to the top of the mounting base by screws, the left end of the water storage tank is tightly fitted and glued to the right end of the heat exchange box, and the right end of the air intake slide is connected to the inside of the water storage tank.

[0013] In this invention, the water storage tank collects the condensed water droplets that slide down the air inlet slide of the heat exchange box, and the left end of the heat exchange box is higher than the right end. Under the action of gravity, the condensed water droplets are guided into the water storage tank, reducing the backflow of water droplets into the boiler and affecting heating.

[0014] The multiple air intake slides are evenly spaced and curved. The curved shape of the air intake slides changes the airflow direction, preventing hot steam from being quickly discharged from the heat exchange box, extending the path, increasing the contact area between the steam and the heat exchange box, and facilitating heat exchange.

[0015] It should be noted that the exhaust pipe and the water storage tank are integrally formed, the discharge pipe and the water storage tank are integrally formed, the end of the discharge pipe is provided with a sealing plug, and the water storage tank is provided with a liquid level window near the bottom on the front face.

[0016] In this invention, the exhaust pipe guides the exhaust gas discharged from the water storage tank and heat exchange box through the air intake slide. The sealing plug on the exhaust pipe is opened, which helps the collected water droplets to be discharged in a concentrated manner, reducing the water droplets from falling and affecting the surrounding environment. The liquid level window is bonded and fixed to one side wall of the water storage tank. The liquid level window is made of tempered glass, which helps outsiders to observe the internal water droplet collection status in real time.

[0017] Furthermore, the air intake pipe and the air intake hopper are integrally formed structures, the right end of the air intake hopper is tightly attached and bonded to the left end face of the heat exchange box, and the interior of the air intake hopper is interconnected with the interior of the air intake slide.

[0018] In this invention, the left end of the air inlet pipe is connected to the boiler exhaust port, guiding hot steam into the air inlet hopper. Through the air inlet hopper air intake regulation and guidance, the hot steam enters the air inlet slide for corresponding heat exchange utilization.

[0019] It is worth noting that the width of the outer wall of the positioning frame is adapted to the width of the inner wall of the air intake bucket. The positioning frame is welded and fixed to the air intake bucket. The louvers are rotatably connected to the positioning frame through a rotating shaft. The edges of two adjacent louvers are closely fitted together. The worm gear is welded and fixed to the rotating shaft. The locking block and the worm gear are integrally formed.

[0020] In this invention, multiple louvers work together to guide the flow of hot steam into the interior. When the edges of the multiple louvers are closely attached, the louvers block the interior of the air intake hopper, reducing the delivery of hot steam. When the louvers open, the gap between adjacent louvers increases, increasing the flow rate of hot steam. A locking block on the worm gear restricts the position of the louvers when they open or close, preventing the louvers from not being properly attached when closed, which would affect the adjustment.

[0021] Furthermore, the worm gear and the rotating rod are integrally formed. Each end of the rotating rod near the inner wall of the limiting frame is provided with a baffle. One end of the rotating rod extends out of the limiting frame and is provided with a screw handle. A limiting screw hole is opened at the top of the limiting frame, and a positioning bolt is provided in the limiting screw hole. The end of the positioning bolt is close to the outer wall of the rotating rod.

[0022] In this invention, the worm gear meshes with the worm wheel, and the rotation of the rotating rod drives the corresponding louvers to rotate synchronously. The handle provides a point of force, facilitating the adjustment of the rotating rod. With the help of the positioning bolt, the position of the rotating rod is fixed under the action of friction, thereby fixing the position of the louvers and reducing the impact of the louvers shifting during the flow of hot steam when no adjustment is needed.

[0023] In addition, the heat exchange box has an inlet pipe connected to the liquid storage tank near the top of the front end face, and a drain pipe connected to the liquid storage tank near the bottom of the front end face. Both the inlet pipe and the drain pipe are connected to corresponding external water supply pipes.

[0024] In this invention, the inlet pipe facilitates the filling of the storage tank with cooling solution, and the drain pipe discharges the cooled solution from the storage tank after heat exchange, increasing the flexibility of use.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] 1. This utility model features an air intake hopper with multiple louvers. A worm gear on the rotating rod meshes with a worm wheel on the louvers. Rotating the handle adjusts the direction of rotation of the louvers, thereby regulating the flow rate of hot steam into the air intake hopper. The heat exchange box contains multiple curved air intake channels to increase the contact area and extend the passage. With the help of a water storage tank, the water droplets condensed after heat exchange are collected, and the exhaust pipe guides the exhaust gas out.

[0027] 2. This utility model uses a fixed base with a support plate to support the heat exchange box. The left end of the heat exchange box is higher than the right end, with air intake at the left end and exhaust at the right end. This prevents water droplets from flowing back into the boiler under gravity and affecting boiler operation. A liquid level window is provided on the water storage tank to help outsiders observe the water droplet collection status. The collected water solution is discharged through a discharge pipe. The positioning bolt is threadedly connected to the limiting frame, and the end of the positioning bolt is tightly fitted with the rotating rod. Under the action of friction, the position of the rotating rod is fixed, thereby realizing the adjustment and fixation of the louver opening angle. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the combined structure of the fixed base and heat exchange box of this utility model;

[0030] Figure 3 This is a schematic diagram of the air intake bucket structure of this utility model;

[0031] Figure 4 This is a schematic diagram of the combined structure of the louver blade and the rotating rod of this utility model;

[0032] Figure 5 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0033] The meanings of the labels in the diagram are as follows:

[0034] 1. Fixed base; 10. Support plate;

[0035] 2. Heat exchange box; 20. Air inlet slide; 21. Water inlet pipe; 22. Drain pipe; 23. Liquid storage tank;

[0036] 3. Air intake hopper; 30. Air intake pipe; 31. Limiting frame; 32. Positioning frame; 320. Louver; 3200. Rotating shaft; 3201. Worm gear; 3202. Locking block; 321. Rotating rod; 3210. Worm gear; 3211. Baffle; 3212. Tightening handle; 33. Positioning bolt;

[0037] 4. Water storage tank; 40. Vent pipe; 41. Liquid level window; 42. Drain pipe. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Please see Figures 1-5 This embodiment provides a technical solution:

[0040] An adjustable large heat exchange area energy saver includes a fixed base 1 and a heat exchange box 2 installed above the fixed base 1. A support plate 10 is provided on the upper surface of the fixed base 1 near the left end, and the top of the support plate 10 is in close contact with the lower surface of the heat exchange box 2.

[0041] In this utility model, the support plate 10 lifts the left end of the heat exchange box 2, increasing the stability of the heat exchange box 2 when placed vertically, reducing the amount of cooling water entering, which would cause the left end of the heat exchange box 2 to tip over under the action of gravity, affecting its placement and use.

[0042] Furthermore, the left end of the heat exchange box 2 is provided with an air intake hopper 3 for adjusting the air intake flow, and the right end of the heat exchange box 2 is provided with a water storage tank 4 for collecting condensate. The bottom of the water storage tank 4 is fixedly connected to the top of the fixing base 1 by screws. The left end of the water storage tank 4 is tightly fitted and glued to the right end of the heat exchange box 2, and the right end of the air intake slide 20 is connected to the inside of the water storage tank 4.

[0043] In this invention, the water storage tank 4 collects the water droplets that condense and slide down the air inlet slide 20 of the heat exchange box 2, and the left end of the heat exchange box 2 is higher than the right end. Under the action of gravity, the condensed water droplets are guided into the water storage tank 4, reducing the water droplets from flowing back into the boiler and affecting heating.

[0044] Specifically, the intake pipe 30 and the intake hopper 3 are integrally formed structures. The right end of the intake hopper 3 is tightly attached to and bonded to the left end face of the heat exchange box 2. The interior of the intake hopper 3 is interconnected with the interior of the intake slide 20.

[0045] In this invention, the left end of the air inlet pipe 30 is connected to the boiler exhaust port, guiding hot steam into the air inlet hopper 3. Through the air intake regulation and guidance of the air inlet hopper 3, the hot steam enters the air inlet slide 20 for corresponding heat exchange utilization.

[0046] It should be noted that several air inlet slides 20 are provided on the left end of the heat exchange box 2. The multiple air inlet slides 20 are distributed at equal intervals and are curved. The curved air inlet slides 20 change the air direction, prevent hot steam from being quickly discharged from the inside of the heat exchange box 2, extend the path, increase the contact area between the steam and the heat exchange box 2, and utilize the heat exchange.

[0047] Furthermore, the hollow area between the inner and outer walls of the heat exchange box 2 is a liquid storage chamber 23;

[0048] Secondly, the air intake hopper 3 is equipped with a positioning frame 32 inside. The positioning frame 32 has several louvers 320 that fit tightly against the sides. Each louver 320 has a rotating shaft 3200 in the middle. One end of the rotating shaft 3200 passes through the positioning frame 32 and the other end has a worm gear 3201. A locking block 3202 is located in the middle of the outer ring of the worm gear 3201. The width of the outer wall of the positioning frame 32 is adapted to the width of the inner wall of the air intake hopper 3. The positioning frame 32 is welded and fixed to the air intake hopper 3. The louvers 320 are rotatably connected to the positioning frame 32 through the rotating shaft 3200. The edges of two adjacent louvers 320 are tightly fitted and close together. The worm gear 3201 is welded and fixed to the rotating shaft 3201. The locking block 3202 and the worm gear 3201 are integrally formed structures.

[0049] In this invention, the cooperation of multiple louvers 320 guides the flow of hot steam into the interior. When the edges of the multiple louvers 320 are closely attached, the louvers 320 block the interior of the air inlet hopper 3, reducing the delivery of hot steam. When the louvers 320 open, the gap between adjacent louvers 320 increases, and the flow rate of hot steam increases. The worm gear 3201 is fitted with a locking block 3202 to restrict the position of the louvers 320 when they open or close, so as to avoid the louvers 320 not being in contact when closed, which would affect the adjustment and coordination.

[0050] It is worth adding that the top of the air intake hopper 3 is provided with a limiting frame 31, and the middle of the limiting frame 31 is provided with a rotating rod 321 corresponding to the rotating shaft 3200. The rotating rod 321 is provided with a worm 3210 at the corresponding position of the worm wheel 3201, and the worm 3210 meshes with the corresponding worm wheel 3201.

[0051] Furthermore, the worm gear 3210 and the rotating rod 321 are integrally formed. The rotating rod 321 is provided with a baffle 3211 at one end near the inner wall of the limiting frame 31. One end of the rotating rod 321 extends out of the limiting frame 31 and is provided with a handle 3212 at the end. The top of the limiting frame 31 is provided with a limiting screw hole, and a positioning bolt 33 is provided in the limiting screw hole. The end of the positioning bolt 33 is close to the outer wall of the rotating rod 321.

[0052] In this invention, the worm gear 3210 meshes with the worm wheel 3201. The rotation of the rotating rod 321 drives the corresponding louver 320 to rotate synchronously. The handle 3212 provides a point of force to facilitate the rotation adjustment of the rotating rod 321. With the cooperation of the positioning bolt 33, the position of the rotating rod 321 is fixed under the action of friction, thereby fixing the position of the louver 320 and reducing the impact of the louver 320 on the flow of hot steam when no adjustment is needed.

[0053] Specifically, the right end of the water storage tank 4 is provided with an exhaust pipe 40, the left end of the air intake hopper 3 is provided with an air intake pipe 30, and the front end of the water storage tank 4 is provided with an exhaust pipe 42 that communicates with the interior near the bottom.

[0054] Furthermore, the exhaust pipe 40 and the water storage tank 4 are integrally formed, the discharge pipe 42 and the water storage tank 4 are integrally formed, the end of the discharge pipe 42 is provided with a sealing plug, and the front surface of the water storage tank 4 is provided with a liquid level window 41 near the bottom.

[0055] In this invention, the exhaust pipe 40 guides the exhaust gas discharged from the water storage tank 4 and the heat exchange box 2 through the air intake slide 20. The sealing plug on the exhaust pipe 42 is opened, which helps the collected water droplets to be discharged in a concentrated manner, reducing the water droplets from falling and affecting the surrounding environment. The liquid level window 41 is bonded and fixed to one side wall of the water storage tank 4. The liquid level window 41 is made of tempered glass, which helps outsiders to observe the internal water droplet collection status in real time.

[0056] In addition, the front end face of the heat exchange box 2 is provided with a water inlet pipe 21 connected to the liquid storage tank 23 near the top, and the front end face of the heat exchange box 2 is provided with a drain pipe 22 connected to the liquid storage tank 23 near the bottom. Both the water inlet pipe 21 and the drain pipe 22 are connected to the corresponding water supply pipes in the outside.

[0057] In this invention, the inlet pipe 21 facilitates the filling of the liquid storage tank 23 with cooling solution, and the drain pipe 22 discharges the cooling solution from the liquid storage tank 23 after heat exchange, increasing the flexibility of use.

[0058] In this embodiment, the adjustable large heat exchange area energy saver is used by first fixing the water tank 4 with exhaust pipe 40 and liquid level window 41 on the fixed base 1. The right end of the heat exchange box 2 with multiple air inlet slides 20 is connected to the left end of the water tank 4, and the air inlet slides 20 are all connected to the inside of the water tank 4. Then, the positioning frame 32 with louvers 320 is fixed inside the air inlet hopper 3, and the louvers 320 are rotatably connected to the air inlet hopper 3 through the rotating shaft 3200. The rotating rod 321 with worm 3210 is rotatably connected to the limiting frame 31, and the worm wheel 3201 meshes with the corresponding worm 3210. The locking block 3202 restricts the rotation range of the louvers 320. Then, the air inlet hopper 3 and the heat exchange box 2 are combined and connected.

[0059] When it is necessary to recover and utilize the heat of boiler steam, the boiler exhaust passage is connected to the intake pipe 30. According to the required flow rate of hot steam, the handle 3212 is turned to open the closed louver 320. The hot steam inside the intake hopper 3 extends into the heat exchange box 2 along the opening direction of the louver 320. After passing through the curved intake slide 20, it exchanges heat with the cooling solution in the liquid storage tank 23 to recover and utilize the heat. The water droplets condensed on the inner wall of the intake slide 20 slide down into the water storage tank 4 under the action of gravity and are collected. The exhaust gas after heat exchange is discharged from the exhaust pipe 40 in the water storage tank 4. The water droplet collection status can be observed through the liquid level window 41, and the sealing plug on the discharge pipe 42 can be opened to help collect the water droplets and discharge them.

[0060] When the louvers 320 are opened from the tightly closed state, the flow rate of hot steam increases with the increase of the opening angle. The louvers 320 are tightly fitted together, which blocks the hot steam passing through the air inlet hopper 3. Under the threaded connection of the positioning bolt 33, the position of the rotating rod 321 is fixed by friction, thereby realizing the fixed adjustment position of the louvers 320 and avoiding the continuous passage of hot steam that would cause the rotation direction of the louvers 320 to deviate, affecting the guidance and use.

Claims

1. An adjustable large heat exchange area energy-saving device, comprising a fixed base and a heat exchange box mounted above the fixed base, characterized in that: The heat exchange box has an air intake hopper for regulating the air intake flow at the left end, a water storage tank for collecting condensate at the right end, several air intake slides at the left end of the heat exchange box, and a hollow area between the inner and outer walls of the heat exchange box is a liquid storage tank. The air intake hopper has a positioning frame inside, and the positioning frame has several louvers that fit tightly against the sides. Each louver has a rotating shaft in the middle. One end of the rotating shaft passes through the positioning frame and the other end has a worm gear. The outer ring of the worm gear has a locking block in the middle. The top of the air intake hopper has a limiting frame, and the limiting frame has a rotating rod in the middle that corresponds to the rotating shaft. Each rotating rod has a worm corresponding to the worm gear, and the worm meshes with the corresponding worm gear. The water storage tank has an exhaust pipe on its right end face, an air intake pipe on its left end face, and an exhaust pipe connected to the interior is located near the bottom of the front end face of the water storage tank.

2. The adjustable large heat exchange area energy saver according to claim 1, characterized in that: A support plate is provided on the upper surface of the fixed base near the left end, and the top of the support plate is in close contact with the lower surface of the heat exchange box.

3. The adjustable large heat exchange area energy saver according to claim 1, characterized in that: The bottom of the water storage tank is fixedly connected to the top of the mounting base by screws. The left end of the water storage tank is tightly fitted and glued to the right end of the heat exchange box. The right end of the air intake slide is connected to the inside of the water storage tank.

4. The adjustable large heat exchange area energy saver according to claim 1, characterized in that: The exhaust pipe and the water storage tank are integrally formed, the discharge pipe and the water storage tank are integrally formed, the end of the discharge pipe is provided with a sealing plug, and the water storage tank is provided with a liquid level window near the bottom on the front surface.

5. The adjustable large heat exchange area energy saver according to claim 1, characterized in that: The air intake pipe and the air intake hopper are integrally formed. The right end of the air intake hopper is tightly attached and bonded to the left end face of the heat exchange box. The interior of the air intake hopper is interconnected with the interior of the air intake slide.

6. The adjustable large heat exchange area energy saver according to claim 1, characterized in that: The width of the outer wall of the positioning frame is adapted to the width of the inner wall of the air intake bucket. The positioning frame is welded and fixed to the air intake bucket. The louvers are rotatably connected to the positioning frame through a rotating shaft. The edges of two adjacent louvers are closely fitted together. The worm gear is welded and fixed to the rotating shaft. The locking block and the worm gear are integrally formed.

7. The adjustable large heat exchange area energy saver according to claim 1, characterized in that: The worm gear and the rotating rod are integrally formed. Each end of the rotating rod near the inner wall of the limiting frame is provided with a baffle. One end of the rotating rod extends out of the limiting frame and is provided with a handle at the end. A limiting screw hole is opened at the top of the limiting frame, and a positioning bolt is provided in the limiting screw hole. The end of the positioning bolt is close to the outer wall of the rotating rod.

8. The adjustable large heat exchange area energy saver according to claim 1, characterized in that: The heat exchange box has an inlet pipe near the top of its front end that communicates with the liquid storage tank, and a drain pipe near the bottom of its front end that communicates with the liquid storage tank. Both the inlet and drain pipes are connected to corresponding external water supply pipes.

Citation Information

Patent Citations

  • Energy-saving heat exchanger

    CN219415865U