Medical waste incineration waste heat utilization device
By setting up a heat release cylinder, a heat absorbing cylinder and a heat conduction block in the medical waste incineration device, the thermal conductivity characteristics of the phase change material is used to solve the problem that the heat of the secondary incinerator is difficult to transfer stably to the pyrolysis furnace, and the effective recovery of heat is achieved and stability of incineration temperature.
Patent Information
- Application Number
- CN202323282342.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-04
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-04
AI Technical Summary
The heat in the secondary incinerator is difficult to maintain and transfer to the pyrolysis furnace, resulting in waste of heat and unstable incineration temperature.
A medical waste incineration waste heat utilization device is designed. By setting a heat release cylinder, a heat absorbing cylinder and a heat conduction block between the pyrolysis furnace and the incinerator, a heat bridge is formed, and the thermal conductivity is increased at the temperature threshold by using phase change materials to achieve Steady transfer and recycling of heat.
It effectively reduces the consumption of heating energy in the pyrolysis furnace, ensures that the excess heat in the incinerator can be stablely recovered to the pyrolysis furnace, improves the stability of the incineration temperature and avoids heat loss.
Smart Images
Figure CN222186961U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of solid waste incineration equipment, in particular to a device for utilizing residual heat from incineration of medical waste. Background Art
[0002] The pyrolysis incinerator mainly includes a primary pyrolysis furnace, a secondary incinerator, a water bath part and a filtering part. When in use, the solid waste is decomposed by the primary pyrolysis furnace, and the solid waste is decomposed into combustible gas at high temperature. The combustible gas is then introduced into the secondary incinerator to complete complete combustion. Finally, the water bath part and the filtering part complete the deacidification, dealkali removal and smoke filtration of the gas, thereby completing the incineration treatment of the solid waste.
[0003] In actual application, the primary pyrolysis furnace and the secondary incineration furnace are generally in a separate state. The primary pyrolysis furnace generally uses an independent heating device to increase the internal temperature. After the primary pyrolysis and the secondary incineration, the hot air generated by the secondary incineration generally directly enters the water bath tower, causing the heat generated by the secondary incineration to be directly absorbed by the moisture in the water bath tower, and then carried away by the moisture, resulting in heat waste. However, when a heat conduction device is directly installed between the primary pyrolysis furnace and the secondary incineration furnace, the secondary incineration furnace is prone to unstable incineration temperature due to the unstable volume of the gas generated by the pyrolysis furnace. When the temperature in the secondary incineration furnace is lower than the temperature in the pyrolysis furnace, it is not conducive to the heat increase of the pyrolysis furnace.
[0004] Therefore, it is necessary to propose a new technical solution to solve the problem that the heat in the secondary incineration furnace is difficult to maintain stably and transfer to the pyrolysis furnace. Utility Model Content
[0005] The utility model aims to provide a device for utilizing residual heat from incineration of medical waste, so as to solve the problem that the heat in the secondary incinerator is difficult to be stably maintained and transferred to the pyrolysis furnace.
[0006] The purpose of the utility model can be achieved through the following technical solutions:
[0007] A device for utilizing residual heat from incineration of medical waste, comprising a pyrolysis furnace and an incinerator, wherein the pyrolysis furnace and the incinerator are interconnected and provided with an air flow channel for gas flow, and the pyrolysis furnace is provided with a feeding port for feeding materials, characterized in that: a heat release tube is provided in the pyrolysis furnace, a heat absorption tube is provided in the incinerator, and a heat conduction block is provided between the heat release tube and the heat absorption tube, wherein;
[0008] The heat absorbing tube is arranged along the length direction of the air flow channel in the incinerator, and a plurality of heat conducting sheets arranged parallel to the air flow channel are fixedly connected in the heat absorbing tube;
[0009] The heat release tube is provided with a temperature threshold. When the temperature of the heat release tube reaches the temperature threshold, a cavity is opened in the heat release tube, and the cavity is filled with a phase change material.
[0010] Preferably, a cavity is provided on the heat release tube, and the cavity is filled with a phase change material.
[0011] Preferably, the pyrolysis furnace and the incineration furnace are respectively fixedly connected with oppositely arranged heat-insulating cylinders, the heat-conducting blocks are slidably connected in the heat-insulating cylinders along the length direction of the heat-insulating cylinders, and the oppositely arranged heat-insulating cylinders are detachably connected via split flanges.
[0012] Preferably, the heat conductive block is fixedly connected to the heat releasing tube, the heat conductive block abuts against the heat absorbing tube, and an abutting assembly is provided on the heat conductive block, and the abutting assembly is used to drive the heat conductive block to approach the heat absorbing tube.
[0013] Preferably, a thread is provided on the outer wall of the heat conductive block, and the abutment assembly includes a driving ring threadedly connected to the heat conductive block and an abutment head arranged on the side of the heat conductive block close to the heat absorbing tube, the driving ring is arranged between two heat insulating tubes, and one side of the abutment head is provided with a groove that cooperates with the heat absorbing tube.
[0014] Preferably, the abutment assembly further comprises an elastic heat-insulating gasket sleeved on the heat-conducting block, and the elastic heat-insulating gasket is axially arranged between the heat-releasing tube and the pyrolysis furnace along the heat-releasing tube.
[0015] Preferably, the heat absorbing tube is coaxially arranged with the incinerator and slidably connected in the incinerator along its axial direction, and a bracket for receiving the heat absorbing tube is fixedly connected to the inner wall of the incinerator.
[0016] Beneficial effects of the utility model:
[0017] The utility model forms a thermal bridge between the pyrolysis furnace and the incinerator through the heat release tube, the heat absorption tube and the heat conduction block, which is convenient for heat transfer between the pyrolysis furnace and the incinerator, so that the excess heat in the incinerator can enter the pyrolysis furnace through the thermal bridge, thereby reducing the energy consumed by heating in the pyrolysis furnace, and by setting the misreading threshold of the heat release tube, the heat release tube simultaneously forms a switch for heat transfer between the pyrolysis furnace and the incinerator, so that when the pyrolysis furnace is just started or the heat in the incinerator is very low, the heat release tube does not reach the dimensional threshold and the thermal conductivity is small, so that the heat in the pyrolysis furnace is prevented from being lost through the thermal bridge, so that the incinerator can stably maintain heat recovery.
[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0020] Figure 1 This is a schematic diagram of the structure of the utility model:
[0021] Figure 2 It is a cross-sectional view of the utility model;
[0022] Figure 3 for Figure 2 Enlarged schematic diagram of part A in the middle.
[0023] 1. Pyrolysis furnace; 2. Incinerator; 3. Heat release tube; 4. Heat absorption tube; 5. Heat conduction block; 6. Heat conduction sheet; 7. Heat insulation tube; 8. Split flange; 9. Drive ring; 10. Elastic heat insulation gasket; 11. Bracket. DETAILED DESCRIPTION
[0024] 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 of 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.
[0025] See also Figure 1 as well as Figure 2 As shown, the utility model is a device for utilizing residual heat from incineration of medical waste, comprising a pyrolysis furnace 1 and an incinerator 2. The pyrolysis furnace 1 and the incinerator 2 are interconnected and provided with an air flow channel for gas flow. The pyrolysis furnace 1 is provided with a feeding port for feeding, a heat release tube 3 is provided in the pyrolysis furnace 1, a heat absorption tube 4 is provided in the incinerator 2, a heat conduction block 5 is provided between the heat release tube 3 and the heat absorption tube 4, the heat absorption tube 4 is provided along the length direction of the air flow channel in the incinerator 2, a plurality of heat conduction sheets 6 arranged parallel to the air flow channel are fixedly connected in the heat absorption tube 4, the heat release tube 3 is provided with a temperature threshold, when the temperature of the heat release tube 3 reaches the temperature threshold, the thermal conductivity of the heat release tube 3 increases, a cavity is provided in the heat release tube 3, and the cavity is filled with a phase change material.
[0026] Through the above arrangement, the heat absorbing tube 4, the heat conducting block 5 and the heat releasing tube 3 form a thermal bridge between the pyrolysis furnace 1 and the incinerator 2. The heat absorbing sheet increases the contact area between the heat absorbing tube 4 and the air in the incinerator 2, thereby increasing the heat absorption efficiency. When a large amount of combustible gas is generated in the pyrolysis furnace 1, the incinerator 2 generates a large amount of heat due to the increase of combustible gas, causing the temperature in the incinerator 2 to rise. The heat in the incinerator 2 is transferred to the heat releasing tube 3 through the thermal bridge, causing the heat in the heat releasing tube 3 to increase continuously. At this time, the heat releasing tube 3 is in a heat absorbing state, making it difficult for the temperatures between the pyrolysis furnace 1 and the incinerator 2 to affect each other, thereby reducing heat loss. When a large amount of combustible gas is generated in the pyrolysis furnace 1, the temperature of the incinerator 2 rises due to the increase of fuel. As the temperature continues to increase until the temperature threshold is reached, the thermal conductivity of the heat releasing tube 3 begins to increase, causing the thermal bridges between the pyrolysis furnace 1 and the incinerator 2 to be interconnected, thereby The thermal bridges between the pyrolysis furnace 1 and the incinerator 2 are interconnected, so that the heat of the incinerator 2 is transferred to the heat release tube 3 through the heat absorption tube 4, and the heat released by the heat release tube 3 is transferred to the pyrolysis furnace 1, so that the excess heat in the incinerator 2 is recovered and utilized. The heat release tube 3 is made of phase change material. Since the phase change material changes its form when it reaches a certain temperature, especially the solid-liquid phase change material, the intermolecular gap of the phase change material is reduced, and the thermal conductivity is increased, thereby completing the connection and disconnection of the thermal bridge, so that when the temperature of the incinerator 2 is greater than the temperature of the phase change material, the heat is transferred to the pyrolysis furnace 1, and when the temperature of the incinerator 2 is lower than the temperature of the phase change material, the heat release tube 3 reduces the heat loss in the pyrolysis furnace 1, and the incinerator 2 can stably maintain the heat recovery, especially when the phase change temperature of the phase change material is close to the pyrolysis temperature of the pyrolysis furnace 1, the effect of heat recovery and reducing heat loss is best.
[0027] See also Figure 1 as well as Figure 2 As shown, the pyrolysis furnace 1 and the incineration furnace 2 are respectively fixedly connected with relatively arranged insulation tubes 7, the heat conductive block 5 is slidably connected in the insulation tube 7 along the length direction of the insulation tube 7, and the relatively arranged insulation tubes 7 are detachably connected through a split flange 8. By setting the insulation tube 7, the insulation tube 7 is connected to the pyrolysis furnace 1 and the incineration furnace 2, and the insulation tube 7 is set on the outside of the heat conductive block 5 to reduce the heat loss of the heat conductive block 5. By setting the split flange 8, after the pyrolysis furnace 1 and the incineration furnace 2 are connected in the air flow channel, since the relative positions of the pyrolysis furnace 1 and the incineration furnace 2 are fixed, the two insulation tubes 7 can be more simply connected to each other through the split flange 8.
[0028] See also Figure 2 as well as Figure 3As shown, the heat conducting block 5 is fixedly connected to the heat releasing tube 3, and the heat conducting block 5 abuts against the heat absorbing tube 4. An abutting assembly is provided on the heat conducting block 5, and the abutting assembly is used to drive the heat conducting block 5 close to the heat absorbing tube 4. The heat absorbing tube 4 is coaxially arranged with the incinerator 2 and connected in the incinerator 2 along its axial sliding direction. The inner wall of the incinerator 2 is fixedly connected with a bracket 11 for receiving the heat absorbing tube 4. Through the above arrangement, the bracket 11 completes the placement of the heat absorbing tube 4. Since the heat conducting block 5 is arranged between the incinerator 2 and the pyrolysis furnace 1, and the heat absorbing tube 4 is coaxially arranged with the incinerator 2, there is an angle between the two, so that the heat absorbing tube 4 and the heat conducting block 5 abut against each other, which is more convenient for installation. At the same time, by arranging the abutting assembly, the heat conducting block 5 can be more tightly combined with the heat absorbing tube 4, and a gap between the placements causes heat loss.
[0029] See also Figure 2 as well as Figure 3 As shown, a thread is provided on the outer peripheral wall of the heat-conducting block 5, and the abutment assembly includes a driving ring 9 threadedly connected to the heat-conducting block 5 and an abutment head arranged on the side of the heat-conducting block 5 close to the heat-absorbing tube 4. The driving ring 9 is arranged between the two heat-insulating tubes 7, and a groove matching the heat-absorbing tube 4 is provided on one side of the abutment head. The abutment assembly also includes an elastic heat-insulating gasket 10 sleeved on the heat-conducting block 5, and the elastic heat-insulating gasket 10 is axially arranged between the heat-releasing tube 3 and the pyrolysis furnace 1. When working, by rotating the driving ring 9, the driving ring 9 is threadedly connected to the heat-conducting block 5, and at the same time The heat conducting block 5 and the heat releasing tube 3 are of great weight, and there is great friction between the heat conducting block 5, the heat releasing tube 3 and the pyrolysis furnace 1, making it difficult for them to rotate. When the driving block rotates, the heat conducting block 5 is brought close to the heat absorbing tube 4 along the heat insulating tube 7, thereby causing the abutment head and the heat absorbing tube 4 to abut against each other. The abutment head and the heat absorbing tube 4 are integrally fixedly connected, and an elastic heat insulating gasket 10 is provided, so that when the heat releasing tube 3 contacts the elastic heat insulating gasket 10, the elastic heat insulating gasket 10 is elastically deformed, so that the heat releasing tube 3 can contact the incinerator 2 more fully, thereby preventing ash from entering the gap.
[0030] Working principle:
[0031] During installation, the incinerator 2 and the pyrolysis furnace 1 are placed at preset positions and the gas passages are connected. Then, the heat release tube 3 is inserted axially along the pyrolysis furnace 1, and the heat conduction block 5 is inserted into the heat insulation tube 7 on the incinerator 2 through the heat insulation tube 7 on the pyrolysis furnace 1. Then, the heat absorption tube 4 is placed in the incinerator 2. Subsequently, the driving ring 9 is rotated by a tool, so that the heat conduction block 5 pulls the heat release tube 3 toward one side of the heat absorption tube 4 and makes the abutment head abut against the heat absorption tube 4. Finally, the split flange 8 is installed between the two heat insulation tubes 7 to complete the sealing of the gap between the two heat insulation tubes 7.
[0032] During operation, when the temperature of the incinerator 2 is lower than the temperature threshold, the heat in the pyrolysis furnace 1 is absorbed by the heat release tube 3, and the thermal bridge formed by the heat absorption tube 4, the heat conductive block 5 and the heat release tube 3 is in a disconnected state, thereby reducing the heat loss in the pyrolysis furnace 1; when the temperature in the incinerator 2 is higher than the temperature threshold, the incinerator 2 causes the temperature of the heat release tube 3 to rise until the phase change temperature of the heat release tube 3 is reached, thereby increasing the thermal conductivity of the heat release tube 3, and the thermal bridge formed by the heat absorption tube 4, the heat conductive block 5 and the heat release tube 3 is in a connected state, thereby completing the recovery of heat in the incinerator 2.
[0033] The above contents are merely examples and explanations of the concept of the present utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the present utility model.
Claims
1. A device for utilizing residual heat from incineration of medical waste, comprising a pyrolysis furnace (1) and an incinerator (2), wherein the pyrolysis furnace (1) and the incinerator (2) are interconnected and provided with an air flow channel for gas flow, and the pyrolysis furnace (1) is provided with a feed inlet for feeding, characterized in that: The pyrolysis furnace (1) is provided with a heat release tube (3), the incineration furnace (2) is provided with a heat absorption tube (4), and a heat conduction block (5) is provided between the heat release tube (3) and the heat absorption tube (4), wherein; The heat absorbing tube (4) is arranged along the length direction of the air flow channel in the incinerator (2), and a plurality of heat conducting sheets (6) arranged parallel to the air flow channel are fixedly connected to the heat absorbing tube (4); The heat release tube (3) is provided with a temperature threshold, and when the temperature of the heat release tube (3) reaches the temperature threshold, the thermal conductivity of the heat release tube (3) increases.
2. The medical waste incineration waste heat utilization device according to claim 1, characterized in that: The heat release cylinder (3) is provided with a cavity, and the cavity is filled with a phase change material.
3. The medical waste incineration waste heat utilization device according to claim 1, characterized in that: The pyrolysis furnace (1) and the incineration furnace (2) are respectively fixedly connected with oppositely arranged heat insulation cylinders (7), the heat conduction block (5) is slidably connected in the heat insulation cylinder (7) along the length direction of the heat insulation cylinder (7), and the oppositely arranged heat insulation cylinders (7) are detachably connected via split flanges (8).
4. The medical waste incineration waste heat utilization device according to claim 3 is characterized in that: The heat conducting block (5) is fixedly connected to the heat releasing tube (3), and the heat conducting block (5) abuts against the heat absorbing tube (4). An abutting assembly is provided on the heat conducting block (5), and the abutting assembly is used to drive the heat conducting block (5) to approach the heat absorbing tube (4).
5. The medical waste incineration waste heat utilization device according to claim 4 is characterized in that: The outer wall of the heat conductive block (5) is provided with a thread, and the abutment assembly comprises a drive ring (9) threadedly connected to the heat conductive block (5) and an abutment head arranged on the side of the heat conductive block (5) close to the heat absorbing tube (4), the drive ring (9) is arranged between the two heat insulating tubes (7), and one side of the abutment head is provided with a groove that cooperates with the heat absorbing tube (4).
6. The medical waste incineration waste heat utilization device according to claim 5, characterized in that: The abutment assembly further comprises an elastic heat-insulating gasket (10) sleeved on the heat-conducting block (5), wherein the elastic heat-insulating gasket (10) is arranged between the heat-releasing tube (3) and the pyrolysis furnace (1) along the axial direction of the heat-releasing tube (3).
7. The medical waste incineration waste heat utilization device according to claim 1, characterized in that: The heat absorbing tube (4) is coaxially arranged with the incinerator (2) and is slidably connected in the incinerator (2) along its axial direction. A bracket (11) for receiving the heat absorbing tube (4) is fixedly connected to the inner wall of the incinerator (2).