High-temperature-resistant access hole

Abstract

The utility model discloses a high-temperature-resistant access hole which comprises an equipment body provided with an access hole, an inner-layer door plate covering the access hole is arranged on the equipment body, an outer-layer door plate connected with the equipment body is further arranged on the outer side of the inner-layer door plate, a protection ring is arranged on the inner-layer door plate, and first heat insulation cotton is arranged on the protection ring. By arranging the inner-layer door plate and the outer-layer door plate, a double-layer heat insulation structure is formed, the heat conductivity is effectively reduced, the influence of high temperature on maintainers is reduced, the operation safety is improved, the temperature buffer space is arranged between the outer-layer door plate and the inner-layer door plate, the temperature buffer space avoids direct contact between the outer-layer door plate and the equipment body, and the service life of the equipment body is prolonged. Heat conduction is further reduced, and the heat insulation effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high temperature resistance, in particular to a high temperature resistance inspection opening. Background Art

[0002] RTO (Regenerative Thermal Oxidizer) is a highly efficient industrial waste gas treatment equipment, mainly used to treat waste gas containing volatile organic compounds (VOCs). The working principle of RTO equipment is to oxidize and decompose organic waste gas at high temperature, converting it into carbon dioxide and water, and recovering the heat released during the decomposition of waste gas, so as to achieve the dual purpose of purifying waste gas and recovering energy.

[0003] In the related art, the internal temperature of RTO equipment is usually above 750°C. Since the heating components inside the equipment need to be regularly inspected and maintained, it is necessary to set up a high-temperature resistant inspection port for people to enter and exit regularly. The inspection port of high-temperature equipment is often at a high temperature, which can easily cause burns and waste energy.

[0004] Based on this, the inventor proposes a high temperature resistant inspection opening to overcome the above defects. Utility Model Content

[0005] In order to solve the above problem, the utility model provides a high temperature resistant inspection opening to solve the problem.

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] A high temperature resistant inspection opening comprises an equipment body provided with the inspection opening, an inner door panel covering the inspection opening is arranged on the equipment body, an outer door panel connected to the equipment body is arranged on the outer side of the inner door panel, a guard ring is arranged on the inner door panel, and a first heat insulating cotton is arranged on the guard ring.

[0008] It is further configured as follows: the inner side surface of the inner door panel is flush with the inspection opening, and a first flange is provided between the inner door panel and the equipment body.

[0009] It is further configured as follows: a second flange is provided between the outer door panel and the equipment body, and the second flange covers the inner door panel.

[0010] It is further configured as follows: a temperature buffer space is provided between the inner side surface of the outer door panel and the inner door panel.

[0011] It is further configured as follows: a first sealing gasket is provided between the first flange and the equipment body; and a second sealing gasket is provided between the second flange and the outer door panel.

[0012] It is further configured that: the first sealing gasket and the second sealing gasket are both asbestos sealing gaskets.

[0013] It is further configured as follows: the first thermal insulation cotton is arranged on the inner ring wall of the guard ring, the inner side surface of the guard ring is provided with a second thermal insulation cotton, the second thermal insulation cotton is arranged in a ring shape, the second thermal insulation cotton is abutted against the adjacent end surface of the first thermal insulation cotton, and the inner diameters of the two coincide.

[0014] It is further configured as follows: a compression disc is provided on the outer side surface of the second heat insulation cotton, a plurality of horizontally arranged fixing screws are provided between the compression disc and the inner door panel, and the plurality of fixing screws are evenly distributed around the compression disc.

[0015] It is further configured as follows: the first thermal insulation wool and the second thermal insulation wool are both made of aluminum silicate thermal insulation rock wool.

[0016] It is further configured as follows: an L-shaped connecting frame is installed on the outer side surface of the outer door panel, a temperature sensor is installed at the end of the connecting frame, and the detection end of the temperature sensor is arranged toward the outer door panel.

[0017] Compared with the prior art, the beneficial technical effects of the utility model are:

[0018] 1. Double-layer heat insulation protection: By setting the inner door panel and the outer door panel, a double-layer heat insulation structure is formed, which effectively reduces the heat conductivity, reduces the impact of high temperature on maintenance personnel, and improves operation safety. Furthermore, the temperature buffer space set between the outer door panel and the inner door panel avoids direct contact between the outer door panel and the equipment body, further reduces heat conduction and improves the heat insulation effect.

[0019] 2. Thermal insulation and sealing: Both the first thermal insulation cotton and the second thermal insulation cotton are made of high-temperature resistant aluminum silicate thermal insulation rock wool, which has excellent thermal insulation performance and can withstand high temperatures up to 1200°C, and is suitable for a variety of high-temperature working environments; the first flange and the second flange are respectively provided with a first sealing gasket and a second sealing gasket, both of which are made of high-temperature resistant asbestos materials, ensuring the sealing of the inspection port and preventing the leakage of high-temperature gas and flames.

[0020] 3. Stability and durability: The design of the guard ring and the clamping disc, as well as the use of the fixing screw, ensures the close contact between the insulation material and the equipment body, improves the durability of the insulation effect, and also enhances the stability of the overall structure.

[0021] 4. Temperature monitoring: The temperature sensor installed on the outer door panel can monitor the temperature changes outside the inspection port in real time, provide timely safety warnings for maintenance personnel, and effectively avoid accidental injuries caused by excessive temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 For along Figure 1 Sectional view along line AA;

[0025] Figure 3 for Figure 2 A local enlarged schematic diagram of the middle A;

[0026] Figure 4 for Figure 2 A local enlarged schematic diagram of point B in the middle.

[0027] Figure numerals: 1. Inspection port; 2. Equipment body; 3. Inner door panel; 4. Outer door panel; 5. First flange; 6. First sealing gasket; 7. Handle; 8. Second flange; 9. Temperature buffer space; 10. Second sealing gasket; 11. Guard ring; 12. First thermal insulation cotton; 13. Second thermal insulation cotton; 14. Pressing disc; 15. Fixing screw; 16. Connecting frame; 17. Temperature sensor. DETAILED DESCRIPTION

[0028] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are 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.

[0029] It should be noted that the terms "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Example

[0032] Reference Figure 1-Figure 4 , is a high temperature resistant inspection opening disclosed in the utility model, comprising a device body 2 provided with an inspection opening 1, and an inner door panel 3 and an outer door panel 4 are provided at the inspection opening 1;

[0033] Among them, the inner door panel 3 is arranged at the inspection port 1 and can block the inspection port 1. The inner door panel 3 is connected to the equipment body 2 through the first flange 5, and the inner side surface of the inner door panel 3 is flush with the inspection port 1. A first sealing gasket 6 is arranged between the first flange 5 and the equipment body 2.

[0034] A handle 7 is provided on the outer side of the outer door panel 4. The outer door panel 4 is arranged on the outer side of the inner door panel 3 and connected to the outer end surface of the equipment body 2 through a second flange 8, and the second flange 8 covers the inner door panel 3 therein.

[0035] Furthermore, a temperature buffer space 9 is provided between the inner side of the outer door panel 4 and the inner door panel 3. The provision of the temperature buffer space 9 avoids the situation where the outer door panel 4 is in direct contact with the device body 2, thereby increasing the heat conductivity.

[0036] Furthermore, a second sealing gasket 10 is provided between the second flange 8 and the outer door panel 4;

[0037] In this embodiment, the first sealing gasket 6 and the second sealing gasket 10 are both asbestos sealing gaskets, which have a high temperature resistance of up to 1200°C.

[0038] A guard ring 11 is fixedly arranged on the inner side surface of the inner door panel 3, a first heat insulating cotton 12 is arranged on the inner ring wall of the guard ring 11, and a second heat insulating cotton 13 is arranged on the inner side surface of the guard ring 11. The second heat insulating cotton 13 is arranged in a ring shape, and the second heat insulating cotton 13 is arranged in contact with the adjacent end surface of the first heat insulating cotton 12, and the inner diameters of the two coincide;

[0039] A pressing disc 14 is provided on the outer side of the second heat insulating cotton 13. Specifically, a plurality of horizontally arranged fixing screws 15 are provided between the pressing disc 14 and the inner door panel 3. The pressing disc 14 presses the second heat insulating cotton 13 onto the inner side wall of the guard ring 11 through the fixing screws 15.

[0040] Specifically, the plurality of fixing screws 15 are evenly distributed around the pressing disc 14 , and the circumferential surfaces of the plurality of fixing screws 15 respectively press the first thermal insulation cotton 12 and the second thermal insulation cotton 13 onto the inner diameter wall of the protective ring 11 and the inner wall of the equipment body 2 .

[0041] In this embodiment, the first thermal insulation wool 12 and the second thermal insulation wool 13 are both made of aluminum silicate thermal insulation rock wool.

[0042] Furthermore, an L-shaped connecting frame 16 is installed on the outer side of the outer door panel 4 , a temperature sensor 17 is installed at the end of the connecting frame 16 , and a detection end of the temperature sensor 17 is arranged toward the outer door panel 4 .

[0043] The working principle and beneficial effects of the utility model are:

[0044] The utility model arranges the first thermal insulation cotton 12 and the second thermal insulation cotton 13 on the inner door panel 3 through the protective ring 11 and the pressing disc 14. Such arrangement can achieve thermal insulation effect, reduce thermal conductivity, and reduce the possibility of maintenance personnel being harmed by high temperature. The pressing disc 14 can press the first thermal insulation cotton 12 and the second thermal insulation cotton 13 through the fixing screw 15, ensuring close contact between the thermal insulation material and the equipment body 2, improving the thermal insulation effect, and also enhancing the stability of the overall structure.

[0045] Furthermore, the outer door panel 4 is covered on the outside of the inner door panel 3, providing double-layer heat insulation protection, further reducing the risk of maintenance personnel being affected by high temperature, and the temperature buffer space 9 arranged between the inner side of the outer door panel 4 and the inspection port 1 avoids direct contact between the outer door panel 4 and the equipment body 2, thereby isolating high temperature and reducing heat conduction, further reducing the thermal conductivity.

[0046] Finally, an L-shaped connecting frame 16 and a temperature sensor 17 are installed on the outer side of the outer door panel 4, which can monitor the temperature changes outside the inspection port 1 in real time, provide safety warnings for maintenance personnel, and avoid accidental injuries caused by excessive temperature.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A high temperature resistant inspection opening, comprising a device body (2) provided with an inspection opening (1), characterized in that: The equipment body (2) is provided with an inner door panel (3) covering the inspection port (1); an outer door panel (4) connected to the equipment body (2) is also provided on the outer side of the inner door panel (3); a protective ring (11) is provided on the inner door panel (3); and a first heat insulating cotton (12) is provided on the protective ring (11).

2. A high temperature resistant inspection opening according to claim 1, characterized in that: The inner side surface of the inner door panel (3) is flush with the inspection opening (1), and a first flange (5) is provided between the inner door panel (3) and the equipment body (2).

3. A high temperature resistant inspection opening according to claim 2, characterized in that: A second flange (8) is provided between the outer door panel (4) and the equipment body (2), and the second flange (8) covers the inner door panel (3) therein.

4. A high temperature resistant inspection opening according to claim 2, characterized in that: A temperature buffer space (9) is provided between the inner side surface of the outer door panel (4) and the inner door panel (3).

5. The high temperature resistant inspection opening according to claim 3, characterized in that: A first sealing gasket (6) is provided between the first flange (5) and the equipment body (2); and a second sealing gasket (10) is provided between the second flange (8) and the outer door panel (4).

6. A high temperature resistant inspection opening according to claim 5, characterized in that: The first sealing gasket (6) and the second sealing gasket (10) are both asbestos sealing gaskets.

7. The high temperature resistant inspection opening according to claim 1, characterized in that: The first thermal insulation cotton (12) is arranged on the inner ring wall of the protective ring (11), and the inner side surface of the protective ring (11) is provided with a second thermal insulation cotton (13). The second thermal insulation cotton (13) is arranged in a ring shape, and the second thermal insulation cotton (13) is arranged in contact with the adjacent end surface of the first thermal insulation cotton (12), and the inner diameters of the two coincide.

8. A high temperature resistant inspection opening according to claim 7, characterized in that: A pressing disc (14) is arranged on the outer side surface of the second heat insulating cotton (13), and a plurality of horizontally arranged fixing screws (15) are arranged between the pressing disc (14) and the inner door panel (3), and the plurality of fixing screws (15) are evenly distributed around the circumference of the pressing disc (14).

9. The high temperature resistant inspection opening according to claim 7, characterized in that: The first thermal insulation wool (12) and the second thermal insulation wool (13) are both made of aluminum silicate thermal insulation rock wool.

10. The high temperature resistant inspection opening according to claim 1, characterized in that: An L-shaped connecting frame (16) is installed on the outer side surface of the outer door panel (4), a temperature sensor (17) is installed at the end of the connecting frame (16), and the detection end of the temperature sensor (17) is arranged toward the outer door panel (4).

Images