A waste heat utilization structure for wood drying equipment

Abstract

The utility model discloses a waste heat utilization structure for wood drying equipment, including a machine body, an air intake pipe connected to the surface of the machine body, a heat exchange structure is arranged on the top of the machine body, the heat exchange structure includes an exhaust pipe connected to the top of the machine body, the top of the exhaust pipe is connected to a sleeve, the sleeve is sleeved on the surface of the air intake pipe, and the top of the sleeve is connected to a pressure utilization structure. The utility model provides airflow to the machine body through the air intake pipe, and the airflow is heated to dry the wood inside the machine body. The drying smoke enters the sleeve through the exhaust pipe. When the high-temperature smoke contacts the air intake pipe inside the sleeve, the airflow can be heated by heat exchange, thereby improving the utilization rate of the high-temperature smoke and reducing energy loss. The utility model can improve the utilization rate of the existing wood drying waste gas, and utilize the smoke temperature by auxiliary heat exchange. The pressure and water vapor inside the smoke can be further utilized to avoid energy loss.

Description

Technical Field

[0001] The utility model relates to the technical field of wood drying, in particular to a waste heat utilization structure for wood drying equipment. Background Art

[0002] Wood drying is an important wood processing process. Its main purpose is to improve the quality and service life of wood by reducing the moisture content of wood. Heat is transferred between wood and drying medium through conduction, convection and radiation. In wood drying equipment, the heater generates heat and transfers the heat to wood through air or other media, which increases the temperature of the wood and speeds up the evaporation of moisture.

[0003] For example, the patent number disclosed on the China Patent Network is: 202110802336.X, and the patent name is: A wood drying waste gas waste heat utilization device, including waste heat utilization equipment, waste gas purification device, waste gas jet pipe and stirring device, the waste gas jet pipe is arranged at the bottom of the waste heat utilization equipment, and support rods are connected on both sides of the waste gas jet pipe. The waste gas jet pipe is fixedly connected to the inner wall of the waste heat utilization equipment through the support rods, and a circulating pump and an air guide pipe are connected to the bottom of the waste gas jet pipe; the present invention recycles the high-calorie waste gas generated after the wood board is dried, and heats it by high-temperature waste gas to achieve heat recovery and utilization. The heated water can be utilized in a variety of ways, and energy is effectively and reasonably utilized. In the process of waste gas recovery, it will pass through the waste gas purification device to avoid pollution of the water inside the waste heat utilization equipment. In the process of high-temperature gas injection through the waste gas jet pipe, the circulating pump is used to pressurize, and the stirring rod is used to stir, so that the high-temperature gas is fully contacted with the water for heating, thereby increasing its utilization efficiency.

[0004] However, the utilization rate of existing wood drying waste gas is low, and the flue gas temperature can only be utilized through heat exchange. The pressure and water vapor inside the flue gas will be directly released into the working environment, resulting in the loss of some energy.

[0005] Therefore, it is necessary to design and transform the waste heat utilization structure of the wood drying equipment. Utility Model Content

[0006] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a waste heat utilization structure for wood drying equipment, which has the advantage of improving the utilization rate of waste heat, and solves the problem that the utilization rate of existing wood drying waste gas is low, and the flue gas temperature can only be utilized through heat exchange. The pressure and water vapor inside the flue gas will be discharged into the working environment by direct release, resulting in the loss of part of the energy.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste heat utilization structure for wood drying equipment, comprising a body;

[0008] An air intake pipe connected to the surface of the machine body;

[0009] A heat exchange structure is arranged on the top of the body, and the heat exchange structure includes an exhaust pipe connected to the top of the body, the top of the exhaust pipe is connected to a sleeve, the sleeve is sleeved on the surface of the intake pipe, the top of the sleeve is connected to a pressure utilization structure, and the top of the body is provided with a water vapor recovery structure connected to the pressure utilization structure.

[0010] As a preferred embodiment of the utility model, the pressure utilization structure includes a box body connected to the top of the casing, a generator is fixedly connected to the back of the box body, a transmission rod is fixedly connected to the input end of the generator, an end of the transmission rod away from the generator passes through the interior of the box body and is fixedly connected to an impeller, and the box body is connected to the water vapor recovery structure.

[0011] As a preferred embodiment of the utility model, the water vapor recovery structure includes a condensation box fixedly connected to the top of the machine body, the top of the box is connected to a connecting pipe, and the side of the connecting pipe away from the box is connected to the top of the condensation box.

[0012] As a preferred embodiment of the utility model, the front side and the rear side of the inner wall of the sleeve are fixedly connected with a diverter plate, the surface of the diverter plate is provided with spoiler holes, and the inner side of the diverter plate is fixedly connected to the surface of the intake pipe.

[0013] As a preferred embodiment of the utility model, the side of the air inlet pipe away from the machine body penetrates into the interior of the condenser and is fixedly connected with a shunt pipe, and the side of the shunt pipe away from the air inlet pipe penetrates into the outside of the condenser and is connected with a wheel.

[0014] As a preferred embodiment of the present invention, a bracket is fixedly connected to the top of the inner wall of the condensation box, and the bracket is sleeved on the surface of the shunt pipe.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model provides airflow to the machine body through the air intake pipe, and the airflow is heated to dry the wood inside the machine body. The drying smoke enters the inside of the casing through the exhaust pipe. When the high-temperature smoke contacts the air intake pipe inside the casing, the airflow can be heated by heat exchange, thereby improving the utilization rate of the high-temperature smoke and reducing energy loss. The utility model can improve the utilization rate of the existing wood drying waste gas, utilize the smoke temperature by auxiliary heat exchange, and further utilize the pressure and water vapor inside the smoke to avoid energy loss.

[0017] 2. The utility model can utilize the flue gas pressure by arranging a generator, a transmission rod and an impeller, and can convert power into electrical energy for use.

[0018] 3. The utility model can recover the water vapor inside the flue gas and reduce the loss of water vapor by providing a condensation box and a connecting pipe.

[0019] 4. The utility model can improve the uniformity of smoke distribution by arranging the diverter plate and the spoiler hole, so as to facilitate the uniform contact between the smoke and the air inlet pipe.

[0020] 5. The utility model can increase the contact area between the external airflow and the smoke by providing the diverter pipe and the wheel, so as to facilitate the rapid reduction of the smoke temperature.

[0021] 6. The utility model can support the shunt pipe by arranging a bracket, thereby improving the stability of the shunt pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the pressure utilization structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the water vapor recovery structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the heat exchange structure of the utility model.

[0026] In the figure: 1. body; 2. air intake pipe; 3. heat exchange structure; 4. exhaust pipe; 5. casing; 6. pressure utilization structure; 7. water vapor recovery structure; 8. box; 9. generator; 10. transmission rod; 11. impeller; 12. condenser box; 13. connecting pipe; 14. diverter plate; 15. spoiler hole; 16. diverter pipe; 17. wheel; 18. bracket. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figures 1 to 4 As shown, the utility model provides a waste heat utilization structure for wood drying equipment, including a body 1;

[0029] An air intake pipe 2 connected to the surface of the body 1;

[0030] A heat exchange structure 3 is provided at the top of the body 1, and the heat exchange structure 3 includes an exhaust pipe 4 connected to the top of the body 1, the top of the exhaust pipe 4 is connected to a sleeve 5, the sleeve 5 is sleeved on the surface of the intake pipe 2, the top of the sleeve 5 is connected to a pressure utilization structure 6, and the top of the body 1 is provided with a water vapor recovery structure 7 which is interconnected with the pressure utilization structure 6.

[0031] refer to Figure 2 The pressure utilization structure 6 includes a box body 8 connected to the top of the casing 5, a generator 9 is fixedly connected to the back of the box body 8, a transmission rod 10 is fixedly connected to the input end of the generator 9, and the end of the transmission rod 10 away from the generator 9 passes through the interior of the box body 8 and is fixedly connected to an impeller 11, and the box body 8 is connected to the water vapor recovery structure 7.

[0032] As a technical optimization solution of the utility model, by providing a generator 9, a transmission rod 10 and an impeller 11, the flue gas pressure can be utilized and the power can be converted into electrical energy for use.

[0033] refer to Figure 3 The water vapor recovery structure 7 includes a condensation box 12 fixedly connected to the top of the body 1, and the top of the box 8 is connected with a connecting pipe 13, and the side of the connecting pipe 13 away from the box 8 is connected with the top of the condensation box 12.

[0034] As a technical optimization solution of the utility model, by providing a condensation box 12 and a connecting pipe 13, the water vapor inside the flue gas can be recovered to reduce the loss of water vapor.

[0035] refer to Figure 4 The front and rear sides of the inner wall of the sleeve 5 are fixedly connected with a diverter plate 14 , a spoiler hole 15 is opened on the surface of the diverter plate 14 , and the inner side of the diverter plate 14 is fixedly connected to the surface of the intake pipe 2 .

[0036] As a technical optimization solution of the utility model, by providing the splitter plate 14 and the spoiler holes 15 , the uniformity of smoke distribution can be improved, so that the smoke can be in uniform contact with the air intake pipe 2 .

[0037] refer to Figure 3 The side of the air inlet pipe 2 away from the body 1 penetrates into the interior of the condenser box 12 and is fixedly connected to a shunt pipe 16 . The side of the shunt pipe 16 away from the air inlet pipe 2 penetrates into the outside of the condenser box 12 and is connected to a wheel 17 .

[0038] As a technical optimization solution of the utility model, by providing the diverter pipe 16 and the wheel 17, the contact area between the external airflow and the flue gas can be increased, which facilitates the rapid reduction of the flue gas temperature.

[0039] refer to Figure 3A bracket 18 is fixedly connected to the top of the inner wall of the condensation box 12 , and the bracket 18 is sleeved on the surface of the shunt pipe 16 .

[0040] As a technical optimization solution of the present invention, by providing a bracket 18 , the shunt pipe 16 can be supported, and the stability of the shunt pipe 16 can be improved.

[0041] The working principle and use process of the utility model are as follows: when in use, airflow is provided to the machine body 1 through the air inlet pipe 2, and the airflow is heated to dry the wood inside the machine body 1. The drying smoke enters the sleeve 5 through the exhaust pipe 4. When the high-temperature smoke contacts the air inlet pipe 2 inside the sleeve 5, the airflow can be heated by heat exchange. The airflow after preliminary use enters the box body 8, and the airflow drives the impeller 11 to rotate. The impeller 11 drives the generator 9 to run by the transmission rod 10. The generator 9 converts the power into electricity for use by the machine body 1. Finally, the airflow is injected into the condensation box 12 by the connecting pipe 13. In the process of extracting the external airflow, the air inlet pipe 2 makes the external cold air contact with the inside of the condensation box 12, and the smoke temperature drops rapidly and condenses in the condensation box 12 for collection.

[0042] To sum up: the wood drying equipment uses a waste heat utilization structure to provide airflow to the body 1 through the air inlet pipe 2. The airflow is heated to dry the wood inside the body 1. The drying smoke enters the sleeve 5 through the exhaust pipe 4. When the high-temperature smoke contacts the air inlet pipe 2 inside the sleeve 5, the airflow can be heated by heat exchange, thereby improving the utilization rate of the high-temperature smoke and reducing energy loss. The utility model can improve the utilization rate of the existing wood drying waste gas, utilize the smoke temperature by auxiliary heat exchange, and the pressure and water vapor inside the smoke can be further utilized to avoid energy loss.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste heat utilization structure for wood drying equipment, comprising a body (1); An air intake pipe (2) connected to the surface of the body (1); Features: A heat exchange structure (3) is arranged on the top of the machine body (1), the heat exchange structure (3) comprises an exhaust pipe (4) connected to the top of the machine body (1), the top of the exhaust pipe (4) is connected to a sleeve (5), the sleeve (5) is sleeved on the surface of the air inlet pipe (2), the top of the sleeve (5) is connected to a pressure utilization structure (6), and the top of the machine body (1) is provided with a water vapor recovery structure (7) which is connected to the pressure utilization structure (6).

2. The waste heat utilization structure for wood drying equipment according to claim 1, characterized in that: The pressure utilization structure (6) comprises a box (8) connected to the top of the casing (5); a generator (9) is fixedly connected to the back of the box (8); a transmission rod (10) is fixedly connected to the input end of the generator (9); an end of the transmission rod (10) away from the generator (9) passes through the interior of the box (8) and is fixedly connected to an impeller (11); and the box (8) is connected to the water vapor recovery structure (7).

3. The waste heat utilization structure for wood drying equipment according to claim 2 is characterized in that: The water vapor recovery structure (7) comprises a condensation box (12) fixedly connected to the top of the machine body (1), the top of the box body (8) is connected to a connecting pipe (13), and the side of the connecting pipe (13) away from the box body (8) is connected to the top of the condensation box (12).

4. The waste heat utilization structure for wood drying equipment according to claim 1 is characterized in that: The front side and the rear side of the inner wall of the sleeve (5) are both fixedly connected to a diverter plate (14), a surface of the diverter plate (14) is provided with a spoiler hole (15), and the inner side of the diverter plate (14) is fixedly connected to the surface of the intake pipe (2).

5. The waste heat utilization structure for wood drying equipment according to claim 2, characterized in that: The side of the air intake pipe (2) away from the machine body (1) penetrates into the interior of the condenser box (12) and is fixedly connected to a shunt pipe (16); the side of the shunt pipe (16) away from the air intake pipe (2) penetrates into the exterior of the condenser box (12) and is connected to a wheel (17).

6. The waste heat utilization structure for wood drying equipment according to claim 5, characterized in that: A bracket (18) is fixedly connected to the top of the inner wall of the condensation box (12), and the bracket (18) is sleeved on the surface of the diversion pipe (16).

Images