Continuous dryer cold air waste heat recovery device

Abstract

The utility model discloses a continuous dryer cold air waste heat recovery device, comprising a shell, which is mounted on external equipment. The shell is provided with an adjustment mechanism, which comprises a receiving mechanism, a fixed pipe, an external pipe, a bellows, a follower disc, a receiving sleeve, an intermediate spring, a threaded sleeve, a two-way rod and a variable resistance mechanism. The receiving mechanism is cooperatively connected to the shell and the fixed pipe, and the bellows are respectively connected to the fixed pipe and the external pipe. The adjustment mechanism provides a flexible and adaptable adjustment method, ensuring that the flow rate of the hot water exchange can be adjusted according to needs. Through the cooperation of the receiving mechanism, the fixed pipe, the external pipe, the bellows, the follower disc, the receiving sleeve, the intermediate spring, the threaded sleeve, the two-way rod and the variable resistance mechanism, the adjustment mechanism can realize accurate adjustment of the hot water exchange. The design of the receiving sleeve, the intermediate spring, the threaded sleeve, the two-way rod and the variable resistance mechanism improves the convenience and safety of operation. This design improves the convenience of adjusting the hot water exchange.

Description

Technical Field

[0001] The utility model relates to the technical field of cold air waste heat recovery of continuous dryers, and more specifically, to a cold air waste heat recovery device of continuous dryers. Background Art

[0002] In the existing technology, the cold air waste heat recovery device of the continuous dryer is an important energy-saving device. It recovers the heat energy generated during the drying process and uses it to heat the cold air entering the dryer, thereby improving energy utilization efficiency. However, this device often has certain limitations during use. Since it is impossible to adjust the heat exchange speed according to different production situations and environmental conditions, it cannot achieve the best waste heat recovery effect in some cases. For example, when the dryer load is large or the ambient temperature is low, the existing cold air waste heat recovery device may not be able to provide enough heat, thereby affecting the drying efficiency; and when the load is small or the ambient temperature is high, excessive heat recovery may lead to energy waste. This fixed heat exchange speed cannot adapt to dynamically changing production needs, limiting the performance of the waste heat recovery device and the overall efficiency of the dryer.

[0003] Furthermore, since the existing continuous dryer cold air waste heat recovery device lacks a flexible adjustment mechanism, it may encounter a series of problems in practical application. For example, in certain specific production stages, the dryer may need more heat to speed up the drying process, and the recovery device may not be able to provide additional heat at this time; on the contrary, when too much heat is not needed, the recovery device may continue to work, resulting in unnecessary consumption of energy. This device that lacks adjustment capabilities not only affects the drying effect of the dryer, but may also lead to energy waste and increased operating costs. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the problems existing in the prior art, the utility model provides a cold air waste heat recovery device for a continuous dryer to solve the technical problems mentioned in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a continuous dryer cold air waste heat recovery device, comprising a shell, the shell is installed on an external device, the shell is provided with an adjustment mechanism, the adjustment mechanism comprises a receiving mechanism, a fixed pipe, an external pipe, a bellows, a follower disc, a receiving sleeve, an intermediate spring, a threaded sleeve, a two-way rod and a variable resistance mechanism, the receiving mechanism is cooperatively connected to the shell and the fixed pipe, the bellows are respectively connected to the fixed pipe and the external pipe, two follower discs are provided, and the two follower discs are respectively installed on the bellows, the receiving sleeve is installed on the follower disc, the intermediate spring is respectively connected to the threaded sleeve and the receiving sleeve, the two-way rod is respectively threadedly connected to the two threaded sleeves in reverse, and the variable resistance mechanism is installed in the bellows.

[0008] The utility model is further configured that the external pipe and the fixed pipe are respectively provided with fixing plates, a plurality of fixing rods are provided between the two fixing plates, and the design of the fixing rods ensures the stability of the two fixing plates.

[0009] The utility model is further configured that a plurality of the receiving sleeves are provided, and receiving springs are respectively provided on the plurality of receiving sleeves, and the receiving springs are slidably connected to the side walls of the fixing rod, and the design of the receiving springs and the intermediate springs ensures the compensation amount when the follower plate is adjusted.

[0010] The utility model is further configured that springs are respectively arranged on the two fixed plates, the springs abut against the follower plate, and the design of the springs ensures the return stroke of the follower plate.

[0011] The utility model is further configured such that the variable resistance mechanism includes a contraction plate and a guide plate, a plurality of the contraction plates are provided, and the plurality of the contraction plates are respectively installed on the inner wall of the corrugated tube, and a plurality of the guide plates are installed on each of the contraction plates. The design of the variable resistance mechanism ensures the adjustment of the flow resistance.

[0012] The utility model is further configured that the receiving mechanism includes a water inlet sleeve and a water outlet sleeve, the water inlet sleeve and the water outlet sleeve are respectively installed on both sides of the shell, and fixed pipes are respectively installed on the water inlet sleeve and the water outlet sleeve. The design of the receiving mechanism ensures the continuity of water inlet and outlet.

[0013] The utility model is further configured that a lateral ring is provided in the shell, a plurality of heat exchange tubes are provided on the lateral ring, a side plate and a round head are provided on the lateral ring, and the design of the heat exchange tube ensures the continuity of heat exchange.

[0014] The utility model is further configured that lateral sleeves are respectively provided on both sides of the shell, and the two lateral sleeves are respectively connected to external equipment, and the design of the lateral sleeves ensures the continuity of air intake.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a continuous dryer cold air waste heat recovery device, which has the following beneficial effects:

[0017] 1. The regulating mechanism provides a flexible and adaptable regulating method, ensuring that the flow rate of the hot water can be adjusted as needed. Through the cooperation of the receiving mechanism, fixed pipe, external pipe, bellows, follower plate, receiving sleeve, intermediate spring, threaded sleeve, two-way rod and variable resistance mechanism, the regulating mechanism can realize precise regulation of the hot water. The design of the receiving sleeve, intermediate spring, threaded sleeve, two-way rod and variable resistance mechanism improves the convenience and safety of operation. This design improves the convenience of regulating the hot water.

[0018] 2. The variable resistance mechanism provides an efficient and adaptable variable resistance method, ensuring that the flow resistance can be adjusted as needed. Through the cooperation of the contraction plate and the guide plate, the variable resistance mechanism can achieve precise control of the flow resistance. The design of the contraction plate and the guide plate improves the flexibility and accuracy of the variable resistance. This design not only improves the convenience of adjusting the flow resistance, but also ensures the safe and efficient operation of the cold air waste heat recovery device of the continuous dryer.

[0019] 3. The receiving mechanism provides a stable and adaptable receiving method, ensuring that the hot water can flow smoothly into and out of the continuous dryer cold air waste heat recovery device. Through the cooperation of the water inlet jacket and the water outlet jacket, the receiving mechanism can realize the orderly flow of the hot water. The design of the water inlet jacket and the water outlet jacket ensures the stability and safety of the receiving mechanism. This design improves the convenience of the flow of hot water. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the cold air waste heat recovery device of the continuous drying machine in the utility model;

[0021] Figure 2 For the utility model Figure 1 A schematic cross-sectional structure diagram of;

[0022] Figure 3 It is a structural schematic diagram of the adjustment mechanism in the utility model;

[0023] Figure 4 For the utility model Figure 3 A schematic cross-sectional structure diagram of;

[0024] Figure 5 It is a structural schematic diagram of the fixed pipe and the external pipe in the utility model.

[0025] In the figure: 1. outer shell; 2. fixed tube; 3. external tube; 4. bellows; 5. follower plate; 6. receiving sleeve; 7. intermediate spring; 8. threaded sleeve; 9. bidirectional rod; 10. fixed plate; 11. fixed rod; 12. receiving spring; 13. spring; 14. shrinkage plate; 15. guide plate; 16. water inlet jacket; 17. water outlet jacket; 18. lateral ring; 19. heat exchange tube; 20. side plate; 21. round head; 22. lateral sleeve. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0029] See also Figure 1-5 The continuous dryer cold air waste heat recovery device comprises a shell 1, which is installed on an external device. The shell 1 is provided with an adjustment mechanism, which comprises a receiving mechanism, a fixed pipe 2, an external pipe 3, a bellows 4, a follower disc 5, a receiving sleeve 6, an intermediate spring 7, a threaded sleeve 8, a two-way rod 9 and a variable resistance mechanism. The receiving mechanism is cooperatively connected to the shell 1 and the fixed pipe 2, the bellows 4 are respectively connected to the fixed pipe 2 and the external pipe 3, two follower discs 5 are provided, and the two follower discs 5 are respectively installed on the bellows 4, the receiving sleeve 6 is installed on the follower disc 5, the intermediate springs 7 are respectively connected to the threaded sleeve 8 and the receiving sleeve 6, and the two-way rods 9 are respectively screwed in the opposite directions. The threads are connected to two threaded sleeves 8, the variable resistance mechanism is installed in the bellows 4, the external tube 3 and the fixed tube 2 are respectively provided with fixed plates 10, a plurality of fixed rods 11 are provided between the two fixed plates 10, a plurality of receiving sleeves 6 are provided, and a plurality of receiving sleeves 6 are respectively provided with receiving springs 12, the receiving springs 12 are slidably connected to the side walls of the fixed rods 11, a spring 13 is respectively provided on the two fixed plates 10, the spring 13 abuts on the follower plate 5, the variable resistance mechanism includes a contraction sheet 14 and a guide sheet 15, a plurality of contraction sheets 14 are provided, and a plurality of contraction sheets 14 are respectively installed on the inner walls of the bellows 4, and a plurality of guide sheets 15 are installed on each contraction sheet 14.

[0030] In this embodiment, when it is necessary to adjust the flow rate of the hot water exchange, first, by rotating the bidirectional rod 9, since the two threaded sleeves 8 are respectively connected to the bidirectional rod 9 by reverse threads, the two threaded sleeves 8 can be driven to move in opposite directions. Since it is impossible to adjust the bidirectional rod 9 at the same time, the change is compensated by the intermediate spring 7 and the receiving spring 12, and then the position of the two follower plates 5 can be driven to adjust, so the position of the bellows 4 is also adjusted accordingly. Since the shrinkage plate 14 is installed in the bellows 4, the shape of the shrinkage plate 14 will change. When the shrinkage plate 14 shrinks, the flow area in the tube will be reduced, thereby increasing the flow resistance, and then reducing the flow speed. The flow rate can be increased in the reverse direction, thereby completing the flow rate adjustment.

[0031] See also Figure 1 and Figure 2 As an implementation of the receiving mechanism: the receiving mechanism includes a water inlet jacket 16 and a water outlet jacket 17, the water inlet jacket 16 and the water outlet jacket 17 are respectively installed on both sides of the outer shell 1, and the water inlet jacket 16 and the water outlet jacket 17 are respectively installed with a fixed pipe 2, a lateral ring 18 is provided in the outer shell 1, a plurality of heat exchange tubes 19 are provided on the lateral ring 18, a side plate 20 and a round head 21 are provided on the lateral ring 18, and lateral sleeves 22 are respectively provided on both sides of the outer shell 1, and the two lateral sleeves 22 are respectively connected to external equipment.

[0032] More specifically, when it is necessary to recover the waste heat of the cold air of the continuous dryer, the hot air is first introduced into the lateral sleeve 22, and then discharged to the outside through multiple heat exchange tubes 19, and then flows into the hot water through the water inlet sleeve 16. The hot water exchanges heat with the multiple heat exchange tubes 19, and then is discharged through the water outlet pipe, thereby discharging the heat of the hot air and completing the waste heat recovery process.

[0033] In summary, when the overall equipment is in use or running: when it is necessary to adjust the flow rate of the hot water exchange, first rotate the two-way rod 9. Since the two threaded sleeves 8 are respectively connected to the two-way rod 9 by reverse threads, the two threaded sleeves 8 can be driven to move in opposite directions. Since it is impossible to adjust the two-way rod 9 at the same time, the change is compensated by the intermediate spring 7 and the receiving spring 12. Then the position of the two follower plates 5 can be driven to adjust, so the position of the bellows 4 is also adjusted accordingly. Since the shrinkage plate 14 is installed in the bellows 4, the shape of the shrinkage plate 14 will change. When the shrinkage plate 14 shrinks, the flow area in the tube will be reduced, thereby increasing the flow resistance and then reducing the flow speed. The flow rate can be increased in the reverse direction, thereby completing the flow rate adjustment.

[0034] When it is necessary to recover the waste heat of the cold air of the continuous dryer, the hot air is first introduced into the lateral sleeve 22, and then discharged to the outside through multiple heat exchange tubes 19, and then flows into the hot water through the water inlet sleeve 16. The hot water exchanges heat with the multiple heat exchange tubes 19, and then is discharged through the water outlet pipe, thereby discharging the heat of the hot air and completing the waste heat recovery process.

[0035] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. Continuous dryer cold air waste heat recovery device, including: The housing (1) is characterized in that the housing (1) is mounted on external equipment, the housing (1) is provided with an adjustment mechanism, the adjustment mechanism comprises a receiving mechanism, a fixed tube (2), an external tube (3), a bellows (4), a follower disc (5), a receiving sleeve (6), an intermediate spring (7), a threaded sleeve (8), a two-way rod (9) and a variable resistance mechanism, the receiving mechanism is cooperatively connected to the housing (1) and the fixed tube (2), the bellows (4) is respectively connected to the fixed tube (2) and the external tube (3), two follower discs (5) are provided, and the two follower discs (5) are respectively mounted on the bellows (4), the receiving sleeve (6) is mounted on the follower disc (5), the intermediate spring (7) is respectively connected to the threaded sleeve (8) and the receiving sleeve (6), the two-way rod (9) is respectively threadedly connected to the two threaded sleeves (8), and the variable resistance mechanism is mounted in the bellows (4).

2. The cold air waste heat recovery device for a continuous dryer according to claim 1 is characterized in that: The external pipe (3) and the fixed pipe (2) are respectively provided with a fixing plate (10), and a plurality of fixing rods (11) are provided between the two fixing plates (10).

3. The cold air waste heat recovery device for a continuous dryer according to claim 2 is characterized in that: A plurality of receiving sleeves (6) are provided, and receiving springs (12) are respectively provided on the plurality of receiving sleeves (6). The receiving springs (12) are slidably connected to the side wall of the fixing rod (11).

4. The cold air waste heat recovery device for a continuous dryer according to claim 3 is characterized in that: The two fixed disks (10) are respectively provided with springs (13), and the springs (13) abut against the follower disk (5).

5. The cold air waste heat recovery device for a continuous dryer according to claim 1 is characterized in that: The variable resistance mechanism comprises a contraction sheet (14) and a guide sheet (15), wherein a plurality of the contraction sheets (14) are provided, and the plurality of contraction sheets (14) are respectively mounted on the inner wall of the corrugated tube (4), and a plurality of the guide sheets (15) are mounted on each of the contraction sheets (14).

6. The cold air waste heat recovery device for a continuous dryer according to claim 5 is characterized in that: The receiving mechanism comprises a water inlet sleeve (16) and a water outlet sleeve (17), the water inlet sleeve (16) and the water outlet sleeve (17) are respectively mounted on two sides of the outer shell (1), and a fixed pipe (2) is respectively mounted on the water inlet sleeve (16) and the water outlet sleeve (17).

7. The cold air waste heat recovery device for a continuous dryer according to claim 6 is characterized in that: A lateral ring (18) is provided inside the shell (1), a plurality of heat exchange tubes (19) are provided on the lateral ring (18), and a side plate (20) and a round head (21) are provided on the lateral ring (18).

8. The cold air waste heat recovery device for a continuous dryer according to claim 7 is characterized in that: Side sleeves (22) are respectively provided on both sides of the housing (1), and the two side sleeves (22) are respectively connected to external equipment.

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