Finned tube and low-temperature economizer convenient to install

Abstract

The utility model provides a kind of finned tube and low-temperature economizer convenient to install, it is related to economizer technical field, the utility model includes frame, the side of frame is equipped with finned tube, the side of frame is equipped with protective device, the protective device is shielded and protected to the finned tube outside one side of frame by protective cover, the protective device includes square tube, bolt, connecting plate, protective cover and the several heat dissipation holes being opened in protective cover, the square tube is set on frame upper end, the bolt is inserted in square tube side, to be fixed with connecting plate, the utility model can shield and protect the area outside frame where finned tube is by using protective device, avoid when finned tube is moved or used, the part outside frame is not protected, then lead to the situation that finned tube stress deformation occurs, to improve the use effect of low-temperature economizer.

Description

Technical Field

[0001] This utility model relates to the field of economizers, and in particular to a finned tube and a low-temperature economizer that are easy to install. Background Technology

[0002] A low-temperature economizer is a device installed at the bottom of the boiler flue to recover the waste heat from the boiler's exhaust gas.

[0003] When using a low-temperature economizer, the finned tubes are easily and quickly installed onto the frame using screws. The low-temperature flue gas from the coal-fired boiler passes through pipes within the equipment, contacting the outside of the finned tubes and then exchanging heat with the cold water inside the tubes, allowing for the recovery and utilization of a significant amount of heat energy from the flue gas. However, when the finned tubes are moved or used, the portion outside the frame is not protected, making the finned tubes susceptible to deformation under stress, which can negatively impact the economizer's performance. Utility Model Content

[0004] The technical problem this invention aims to solve is that when the finned tube is moved or used, the part outside the frame is not protected, which makes the finned tube susceptible to deformation under stress, thus affecting the performance of the low-temperature economizer.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a low-temperature economizer, including a frame, a finned tube on one side of the frame, and a protective device on one side of the frame, the protective device using a protective cover to shield and protect the finned tube outside the frame on one side.

[0006] The effect achieved by the above components is as follows: when using the low-temperature economizer, the finned tubes are conveniently and quickly installed on the frame with screws. Then, the finned tubes are shielded and protected in the area outside the frame using a protective device. Then, the low-temperature flue gas from the coal-fired boiler comes into contact with the outside of the finned tubes through the pipes in the equipment, and then exchanges heat with the cold water inside the finned tubes, so that a large amount of heat energy in the flue gas can be recovered and utilized.

[0007] Preferably, the protective device includes a square tube, bolts, a connecting plate, a protective cover, and several heat dissipation holes on the protective cover. The square tube is set at the upper end of the frame, and the bolts are inserted into one side of the square tube to fix it to the connecting plate. The protective cover is connected to one side of the connecting plate, and the size of the protective cover is adapted to the size of the finned tube. Several heat dissipation holes on the surface of the protective cover are used for heat dissipation.

[0008] The effects achieved by the above components are as follows: When using the protective device, the protective cover can be moved so that the connecting plate fixed on one side of the protective cover can be inserted into the square tube fixed at the upper end of the frame. Then, the bolts can be rotated so that the bolts pass through the square tube and are threaded to the connecting plate. The protective cover then shields and protects the finned tubes on one side of the frame, and the heat dissipation holes on the protective cover allow the finned tubes to dissipate heat. By using the protective device, the finned tubes in the area outside the frame can be shielded and protected, preventing the finned tubes from being unprotected when they are moved or used, which could lead to deformation due to stress. This improves the performance of the low-temperature economizer.

[0009] Preferably, an auxiliary component is provided on one side of the square tube. The auxiliary component includes a fixing plate, a locking block, and a locking hole opened on one side of the connecting plate. The fixing plate is located at the upper end of the square tube, and the locking block is inserted into the fixing plate and engages with the locking hole on one side of the connecting plate.

[0010] The effect achieved by the above components is as follows: the fixing plate is fixed to one side of the square tube, and then the locking block passes through the fixing plate and reaches the locking hole on one side of the connecting plate to lock and fix it to the connecting plate. This completes the initial fixing of the connecting plate inside the square tube, which facilitates the subsequent threaded fixing of the connecting plate with bolts.

[0011] Preferably, the connecting plate is provided with a reinforcing plate on the side near the protective cover to improve the connection strength between the connecting plate and the protective cover.

[0012] The effect achieved by the above components is to fix the reinforcing plate to the protective cover and the connecting plate, thereby improving the connection strength between the protective cover and the connecting plate and preventing deformation at the connection point.

[0013] Preferably, a washer is provided on the side of the bolt near the square tube to increase the contact area between the bolt and the square tube.

[0014] The effect achieved by the above components is to increase the contact area between the bolt and the square tube by having the bolt abut against the washer on the side closer to the square tube, and the washer abut against the square tube, thereby making the bolt better fixed to the connecting plate.

[0015] Preferably, a support plate is provided on one side of the frame to support the lower end of the protective cover.

[0016] The effect achieved by the above components is as follows: by fixing the support plate to one side of the frame, and with the support plate located at the lower end of the protective cover, the protective cover is supported, so that the protective cover is more stably positioned on one side of the frame, thereby protecting the finned tube.

[0017] Preferably, the protective cover has several anti-slip blocks on both sides to increase the friction on one side of the protective cover.

[0018] The effect achieved by the above components is to increase the surface friction of the protective cover by fixing several anti-slip blocks on one side of the protective cover, thereby making the protective cover easier to move.

[0019] In summary, the beneficial effects of this utility model are as follows:

[0020] By using protective devices, the area of ​​the finned tube outside the frame can be shielded and protected, preventing the finned tube from being deformed due to stress when it is moved or used, thus improving the performance of the low-temperature economizer. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a three-dimensional structural diagram of the protective device of this utility model in its unused state;

[0024] Figure 3 This utility model Figure 1 A schematic diagram of a partial three-dimensional structure;

[0025] Figure 4 This utility model Figure 2 A schematic diagram of a partial three-dimensional structure;

[0026] Figure 5 This is a three-dimensional structural diagram of the protective device of this utility model;

[0027] Figure 6 This utility model Figure 5 A partial three-dimensional structural diagram.

[0028] Legend: 1. Frame; 2. Finned tube; 3. Protective device; 31. Square tube; 32. Bolt; 33. Connecting plate; 34. Protective cover; 35. Heat dissipation hole; 36. Auxiliary component; 361. Fixing plate; 362. Locking block; 363. Locking hole; 37. Reinforcing plate; 38. Gasket; 39. Support plate; 310. Anti-slip block. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Figures 1 to 6 The illustrated low-temperature economizer includes a frame 1, with finned tubes 2 on one side of the frame 1 and a protective device 3 on the same side. The protective device 3, via a protective cover 34, shields and protects the finned tubes 2 on the outside of the frame 1. When using the low-temperature economizer, the finned tubes 2 are easily and quickly installed onto the frame 1 using screws. The protective device 3 then shields the finned tubes 2 in the area outside the frame 1. The low-temperature flue gas from the coal-fired boiler passes through pipes in the equipment, contacts the outside of the finned tubes 2, and exchanges heat with the cold water inside the finned tubes 2, allowing a large amount of heat energy in the flue gas to be recovered and utilized.

[0032] Figures 1 to 6 The protective device 3 shown includes a square tube 31, bolts 32, connecting plate 33, protective cover 34, and several heat dissipation holes 35 opened on the protective cover 34. The square tube 31 is set on the upper end of the frame 1, and the bolts 32 are inserted into one side of the square tube 31 to fix it to the connecting plate 33. The protective cover 34 is connected to one side of the connecting plate 33, and the size of the protective cover 34 is adapted to the size of the finned tube 2. Several heat dissipation holes 35 on the surface of the protective cover 34 are used for heat dissipation. When using the protective device 3, the protective cover 34 can be moved so that the connecting plate 33 fixed on one side of the protective cover 34 can be inserted into the square tube 31 fixed at the upper end of the frame 1. Then, the bolt 32 can be rotated so that the bolt 32 passes through the square tube 31 and is threadedly fixed to the connecting plate 33. Then, the protective cover 34 can shield and protect the finned tube 2 on the outside of the frame 1. The heat dissipation holes 35 on the protective cover 34 can allow the finned tube 2 to dissipate heat. By using the protective device 3, the finned tube 2 in the area outside the frame 1 can be shielded and protected, so as to avoid the finned tube 2 being unprotected when it is moved or used, which would cause the finned tube 2 to be deformed by force, thereby improving the performance of the low temperature economizer.

[0033] Figures 1 to 6An auxiliary component 36 is provided on one side of the square tube 31 shown. The auxiliary component 36 includes a fixing plate 361, a locking block 362, and a locking hole 363 on one side of the connecting plate 33. The fixing plate 361 is located at the upper end of the square tube 31. The locking block 362 is inserted into the fixing plate 361 and engages with the locking hole 363 on one side of the connecting plate 33. The fixing plate 361 is fixed to one side of the square tube 31. Then, the locking block 362 passes through the fixing plate 361 and reaches the locking hole 363 on the one side of the connecting plate 33 to engage and fix the connecting plate 33. This completes the initial fixation of the connecting plate 33 inside the square tube 31, which facilitates the subsequent threaded fixation of the connecting plate 33 using bolts 32.

[0034] Figures 1 to 6 The connecting plate 33 shown has a reinforcing plate 37 on the side near the protective cover 34 to improve the connection strength between the connecting plate 33 and the protective cover 34. The reinforcing plate 37 is used to fix the protective cover 34 and the connecting plate 33, thereby increasing the connection strength between the protective cover 34 and the connecting plate 33 and preventing deformation at the connection point. A washer 38 is provided on the side of the bolt 32 near the square tube 31 to increase the contact area between the bolt 32 and the square tube 31. The contact area between the bolt 32 and the square tube 31 is increased by the bolt 32 abutting against the washer 38 near the square tube 31, and the washer 38 abutting against the square tube 31, thus better securing the bolt 32 to the connecting plate 33.

[0035] Figures 1 to 6 A support plate 39 is provided on one side of the frame 1 to support the lower end of the protective cover 34. The support plate 39 is fixed to one side of the frame 1 and positioned below the protective cover 34, thus providing stability and protection for the finned tube 2. Several anti-slip blocks 310 are provided on both sides of the protective cover 34 to increase friction on one side. By fixing several anti-slip blocks 310 to one side of the protective cover 34, the surface friction of the protective cover 34 is increased, making it easier to move.

[0036] Working principle: When using the low-temperature economizer, the finned tube 2 is easily and quickly installed onto the frame 1 with screws. Then, the protective device 3 is used to shield and protect the finned tube 2 in the area outside the frame 1. Then, the low-temperature flue gas from the coal-fired boiler comes into contact with the outside of the finned tube 2 through the pipe in the equipment, and then exchanges heat with the cold water inside the finned tube 2, so that a large amount of heat energy in the flue gas can be recovered and utilized. When using the protective device 3, the protective cover 34 can be moved so that the connecting plate 33 fixed on one side of the protective cover 34 can be inserted into the square tube 31 fixed at the upper end of the frame 1. Then, the bolt 32 can be rotated so that the bolt 32 passes through the square tube 31 and is threadedly fixed to the connecting plate 33. Then, the protective cover 34 can shield and protect the finned tube 2 on the outside of the frame 1. The heat dissipation holes 35 on the protective cover 34 can allow the finned tube 2 to dissipate heat. By using the protective device 3, the finned tube 2 in the area outside the frame 1 can be shielded and protected, so as to avoid the finned tube 2 being unprotected when it is moved or used, which would cause the finned tube 2 to be deformed by force, thereby improving the performance of the low temperature economizer.

[0037] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or equivalent variations to the disclosed technical content and apply them to other fields. However, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, shall still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A low-temperature economizer, comprising a frame (1), characterized in that: The frame (1) has a finned tube (2) on one side and a protective device (3) on one side. The protective device (3) uses a protective cover (34) to shield and protect the finned tube (2) on the outside of the frame (1).

2. The low-temperature economizer according to claim 1, characterized in that: The protective device (3) includes a square tube (31), bolts (32), a connecting plate (33), a protective cover (34), and several heat dissipation holes (35) opened on the protective cover (34). The square tube (31) is set on the upper end of the frame (1). The bolts (32) are inserted into one side of the square tube (31) to fix it to the connecting plate (33). The protective cover (34) is connected to one side of the connecting plate (33), and the size of the protective cover (34) is adapted to the size of the finned tube (2). Several heat dissipation holes (35) on the surface of the protective cover (34) dissipate heat.

3. A low-temperature economizer according to claim 2, characterized in that: An auxiliary component (36) is provided on one side of the square tube (31). The auxiliary component (36) includes a fixing plate (361), a locking block (362), and a locking hole (363) opened on one side of the connecting plate (33). The fixing plate (361) is located at the upper end of the square tube (31). The locking block (362) is inserted into the fixing plate (361) and engages with the locking hole (363) on one side of the connecting plate (33).

4. A low-temperature economizer according to claim 3, characterized in that: The connecting plate (33) is provided with a reinforcing plate (37) on the side near the protective cover (34) to improve the connection strength between the connecting plate (33) and the protective cover (34).

5. A low-temperature economizer according to claim 4, characterized in that: The bolt (32) is provided with a washer (38) on the side near the square tube (31) to increase the contact area between the bolt (32) and the square tube (31).

6. A low-temperature economizer according to claim 5, characterized in that: The frame (1) has a support plate (39) on one side to support the lower end of the protective cover (34).

7. A low-temperature economizer according to claim 6, characterized in that: The protective cover (34) has several anti-slip blocks (310) on both sides to increase the friction on one side of the protective cover (34).

8. A finned tube that is easy to install, characterized in that: The low-temperature economizer described in any one of claims 1-7 is adopted.

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