Manhole door and flue gas denitration reactor

Abstract

The utility model discloses a manhole door and a flue gas denitration reactor, and solves the technical problems that an existing manhole door is difficult to open and close and poor in sealing performance. Comprising an inner assembly and an outer assembly, the inner assembly comprises an inner door, a first supporting frame and a first reinforcing frame, the first supporting frame and the first reinforcing frame are connected, the inner door is hinged to the first supporting frame through a first rotating shaft, the inner door is provided with a first mounting part, the first supporting frame is provided with a matched first mounting groove, and the first reinforcing frame is matched with the inner door in shape; the outer assembly comprises an outer door, a second supporting frame and a second reinforcing frame, the second supporting frame and the second reinforcing frame are connected, the outer door is hinged to the second supporting frame through a second rotating shaft, the outer door is provided with a second mounting part, the second supporting frame is provided with a matched second mounting groove, and the second reinforcing frame is matched with the outer door in shape; wherein the first supporting frame is connected with the second supporting frame; by arranging the inner assembly and the outer assembly, the inner side and the outer side of the manhole door are isolated through the inner layer and the outer layer, and the isolation effect is good; the inner door is tightly attached to the first supporting frame, the outer door is tightly attached to the second supporting frame, and the sealing effect of the device is good.

Description

Technical Field

[0001] The present application belongs to the technical field of protective devices, and in particular relates to a manhole door and a flue gas denitrification reactor. Background Art

[0002] The flue gas denitrification reactor used by steel enterprises using the selective catalytic reduction method is equipped with multiple manhole doors for inspecting the inside of the reactor and replacing the air.

[0003] In the prior art, single-door manhole doors fixed with conventional bolts require the cooperation of multiple people to open and close the manhole door, and disassembly and assembly are time-consuming and laborious. After unscrewing all the bolts, the manhole door is completely separated from the manhole, or a single-point hanging is used, and the manhole door may fall or shake greatly, causing collision damage to the facilities or hitting or squeezing injuries to personnel. During the opening of the manhole door, if high-temperature toxic gases are ejected, it is not conducive to quickly closing the manhole door and the operator to avoid, which may easily cause poisoning or scalding injuries to personnel. Conventional manhole doors are sealed by installing sealing gaskets on the plane and tightening the bolts. Each time the manhole door is disassembled and assembled, the sealing gasket and some bolts need to be replaced, and the material consumption cost is high. In addition, conventional manhole doors are prone to air leakage at the compression point, and the efficiency of the induced draft fan cannot be fully utilized, resulting in a waste of electricity. Summary of the invention

[0004] In order to solve the technical problems in the current prior art that the manhole door is difficult to open and close and has poor sealing performance, the present application provides a manhole door and a flue gas denitrification reactor.

[0005] In a first aspect of the present application, there is provided a manhole door comprising an inner component and an outer component;

[0006] The inner component comprises an inner door, a first supporting frame and a first reinforcing frame connected thereto, the inner door being hinged to the first supporting frame via a first rotating shaft, the inner door being provided with a first mounting portion, the first supporting frame being provided with a matching first mounting groove, and the first reinforcing frame being adapted to the shape of the inner door;

[0007] The outer component includes an outer door, a second supporting frame and a second reinforcing frame connected thereto, the outer door being hinged to the second supporting frame via a second rotating shaft, the outer door being provided with a second mounting portion, the second supporting frame being provided with a matching second mounting groove, and the second reinforcing frame being adapted to the shape of the outer door;

[0008] Wherein, the first supporting frame and the second supporting frame are connected.

[0009] In some embodiments, one of the second support frame and the outer door is provided with a limiting groove, and the other is provided with a limiting member that can be inserted into the limiting groove.

[0010] In some embodiments, a limiting hole is provided on the limiting member, and the limiting member further includes a locking member that can be inserted into the limiting hole, and the locking member extends out of the limiting hole.

[0011] In some embodiments, the outer door and the second supporting frame, and the inner door and the first supporting frame are connected by bolts.

[0012] In some embodiments, the first support frame and the second support frame are provided with rings, and the bolts are sleeved on the rings.

[0013] In some embodiments, the first mounting portion and the second mounting portion are respectively provided with sealing gaskets along the circumferential direction.

[0014] In some embodiments, the first mounting portion and the second mounting portion are respectively provided with a thermal insulation layer along the circumferential direction.

[0015] In some embodiments, the inner door and the outer door are provided with a first handle and a second handle, respectively.

[0016] In some embodiments, the first handle is hinged to the inner door and the second handle is hinged to the outer door.

[0017] In a second aspect of the present application, a flue gas denitrification reactor is provided, comprising a main body and the manhole door; the main body is provided with a reserved hole connecting the internal cavity of the main body with the outside; wherein the manhole door is arranged on the outside of the reserved hole.

[0018] The manhole door provided according to the embodiment of the present application comprises an inner component and an outer component, wherein the inner component comprises an inner door, a first supporting frame and a first reinforcing frame connected thereto, the inner door being hinged to the first supporting frame via a first rotating shaft, the inner door being provided with a first mounting portion, the first supporting frame being provided with a matching first mounting groove, and the first reinforcing frame being adapted to the shape of the inner door; the outer component comprises an outer door, a second supporting frame and a second reinforcing frame connected thereto, the outer door being hinged to the second supporting frame via a second rotating shaft, the outer door being provided with a second mounting portion, the second supporting frame being provided with a matching second mounting groove, and the second reinforcing frame being adapted to the shape of the outer door; wherein the first supporting frame and the second supporting frame are connected;

[0019] Compared with the prior art, this application has at least the following beneficial effects:

[0020] (1) This application provides an inner component and an outer component to isolate the inner and outer sides of the manhole door, thereby achieving a better isolation effect.

[0021] (2) The inner door of the present application is provided with a first mounting portion, and the first support frame is provided with a matching first mounting groove. The first mounting portion and the first mounting groove match, so that the inner door and the first support frame fit tightly, thereby increasing the sealing effect of the device.

[0022] (3) The outer door of the present application is provided with a second mounting portion, and the second support frame is provided with a matching second mounting groove. The second mounting portion and the second mounting groove match, so that the outer door and the second support frame fit tightly, further increasing the sealing effect of the device.

[0023] (4) The inner component of the present application includes a first reinforcement frame, which is adapted to the shape of the inner door to fit the edge of the inner door, further increasing the sealing effect of the device.

[0024] (5) The outer component of the present application includes a second reinforcement frame, which is adapted to the shape of the outer door to fit the edge of the outer door, further increasing the sealing effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of a manhole door when closed in an embodiment of the present application is shown.

[0026] Figure 2 A schematic structural diagram of a manhole door when it is opened in an embodiment of the present application is shown.

[0027] Description of reference numerals:

[0028] 100. Internal components;

[0029] 110, inner door; 120, first support frame; 130, first reinforcement frame; 140, first rotating shaft; 150, first mounting portion; 160, first handle;

[0030] 200, external components;

[0031] 210, outer door; 220, second support frame; 230, second reinforcement frame; 240, second rotating shaft; 250, second mounting portion; 260, second handle; 270, lock buckle; 280, lock nose. DETAILED DESCRIPTION

[0032] In order to make the technical personnel in the technical field to which the present application belongs to understand the present application more clearly, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0033] A first aspect of the present application provides a manhole door to increase the sealing effect of the manhole.

[0034] See also Figure 1 as well as Figure 2, the manhole door provided in the embodiment of the present application includes an inner component 100 and an outer component 200;

[0035] The inner component 100 includes an inner door 110, a first supporting frame 120 and a first reinforcing frame 130 connected thereto. The inner door 110 is hinged to the first supporting frame 120 through a first rotating shaft 140. The inner door 110 is provided with a first mounting portion 150. The first supporting frame 120 is provided with a matching first mounting groove. The first reinforcing frame 130 is adapted to the shape of the inner door 110. In some embodiments, the inner door 110 is hinged to the right side of the first supporting frame 120 through the first rotating shaft 140. In some embodiments, the first reinforcing frame 130 extends in a direction perpendicular to the wall. In some embodiments, the first reinforcing frame 130 extends axially along the manhole. In some embodiments, the first reinforcing frame 130 extends in a centerline direction of the manhole. In some embodiments, the first reinforcing frame 130 is a raised edge of the first supporting frame 120 to wrap the inner door 110 and enhance the sealing effect.

[0036] The outer component 200 includes an outer door 210, a second supporting frame 220 and a second reinforcing frame 230 connected thereto. The outer door 210 is hinged to the second supporting frame 220 via a second rotating shaft 240. The outer door 210 is provided with a second mounting portion 250. The second supporting frame 220 is provided with a matching second mounting groove. The second reinforcing frame 230 is adapted to the shape of the outer door 210. In some embodiments, the outer door 210 is hinged to the right side of the second supporting frame 220 via the second rotating shaft 240. In some embodiments, the second reinforcing frame 230 extends in a direction perpendicular to the wall. In some embodiments, the second reinforcing frame 230 extends axially along the manhole. In some embodiments, the second reinforcing frame 230 extends in a centerline direction of the manhole. In some embodiments, the second reinforcing frame 230 is a raised edge of the second supporting frame 220 to wrap the outer door 210 and enhance the sealing effect.

[0037] Among them, the first support frame 120 and the second support frame 220 are connected; in some embodiments, the second support frame 220 is larger than the first support frame 120, and the first support frame 120 is connected to the inner side of the second support frame 220; in some embodiments, the size of the outer door 210 is larger than the size of the inner door 110.

[0038] In some embodiments, one of the second support frame 220 and the outer door 210 is provided with a limiting groove, and the other is provided with a limiting piece that can be inserted into the limiting groove, so as to further improve the closing effect of the manhole door; in some embodiments, the second support frame 220 is provided with a limiting groove, and the outer door 210 is provided with a limiting piece; in some embodiments, the second support frame 220 is provided with a lock nose 280, and the outer door 210 is provided with a lock buckle 270.

[0039] In some embodiments, a limiting hole is provided on the limiting member, and the limiting member also includes a locking member that can be inserted into the limiting hole, and the locking member extends out of the limiting hole to increase the stability of the manhole door closing; in some embodiments, the limiting member is inserted in the limiting groove and extends out of the limiting groove, and the limiting hole is located on the extending part; in some embodiments, the locking member is a lock or a rod, which is inserted in the limiting hole to limit the relative position of the limiting member and the limiting groove; in some embodiments, the lock buckle 270 is inserted in the lock nose 280 and extends out of the lock nose 280, the limiting hole is located in the extending part, and the limiting hole is provided with a locking member.

[0040] In some embodiments, the outer door 210 and the second support frame 220, as well as the inner door 110 and the first support frame 120 are connected by bolts to further increase the sealing effect of the manhole door; in some embodiments, the outer door 210 and the second support frame 220, as well as the inner door 110 and the first support frame 120 are connected by fixed pins.

[0041] In some embodiments, the first support frame 120 and the second support frame 220 are provided with rings, and the rings are provided with bolts to prevent the bolts from falling off during disassembly. In some embodiments, the first support frame 120 and the second support frame 220 are provided with support seats hinged to one end of the screw rod, and the screw rod is provided with a nut to be threadedly connected to the inner door 110 and the outer door 210; in some embodiments, a plurality of bolts are provided and are arranged at circumferential intervals along the inner door 110 and the outer door 210.

[0042] In some embodiments, the first mounting portion 150 and the second mounting portion 250 are respectively provided with sealing gaskets along the circumference to further increase the sealing effect of the manhole door. In some embodiments, sealing gaskets are provided on the inner door 110 and the outer door 210 to increase the sealing effect when closing. In some embodiments, sealing gaskets are provided on the circumference of the inner door 110 and the outer door 210.

[0043] In some embodiments, the first mounting portion 150 and the second mounting portion 250 are respectively provided with a thermal insulation layer along the circumference to protect the device while sealing.

[0044] In some embodiments, the inner door 110 and the outer door 210 are respectively provided with a first handle 160 and a second handle 260 to facilitate the opening and closing of the inner door 110 and the outer door 210 ; in some embodiments, the first handle 160 is located on the left side of the inner door 110 , and the second handle 260 is located on the left side of the outer door 210 .

[0045] In some embodiments, the first handle 160 is hinged to the inner door 110 , and the second handle 260 is hinged to the outer door 210 .

[0046] The second embodiment of the present application provides a flue gas denitrification reactor to increase the sealing effect of the manhole.

[0047] The flue gas denitrification reactor provided in the embodiment of the present application includes a main body and a manhole door; the main body is provided with a reserved hole connecting the internal cavity of the main body with the outside; wherein the manhole door is arranged on the outside of the reserved hole to separate the inside and outside of the flue gas denitrification reactor.

[0048] The following is a detailed description of the use of the manhole door of this application:

[0049] When the manhole door is closed, first rotate the inner door 110 along the first rotating shaft 140 to fit with the first support frame 120, then bolt the inner door 110 to the first support frame 120, rotate the outer door 210 along the second rotating shaft 240 to fit with the second support frame 220, then bolt the outer door 210 to the second support frame 220, and finally connect the lock buckle 270 on the outer door 210 and the lock nose 280 on the second support frame 220.

[0050] The manhole door and flue gas denitration reactor of the present application have at least the following advantages:

[0051] (1) This application provides an inner component and an outer component to isolate the inner and outer sides of the manhole door, thereby achieving a better isolation effect.

[0052] (2) The inner door of the present application is provided with a first mounting portion, and the first support frame is provided with a matching first mounting groove. The first mounting portion and the first mounting groove match, so that the inner door and the first support frame fit tightly, thereby increasing the sealing effect of the device.

[0053] (3) The outer door of the present application is provided with a second mounting portion, and the second support frame is provided with a matching second mounting groove. The second mounting portion and the second mounting groove match, so that the outer door and the second support frame fit tightly, further increasing the sealing effect of the device.

[0054] (4) The inner component of the present application includes a first reinforcement frame, which is adapted to the shape of the inner door to fit the edge of the inner door, further increasing the sealing effect of the device.

[0055] (5) The outer component of the present application includes a second reinforcement frame, which is adapted to the shape of the outer door to fit the edge of the outer door, further increasing the sealing effect of the device.

[0056] (6) In the present application, one of the second support frame and the outer door is provided with a limiting groove, and the other is provided with a limiting member that can be inserted into the limiting groove, so as to further improve the closing effect of the manhole door and ensure the stability of the outer door in the closed state.

[0057] (7) The first mounting portion and the second mounting portion are respectively provided with sealing gaskets along the circumferential direction to further enhance the sealing effect of the manhole door.

[0058] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0059] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0060] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0061] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0062] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A manhole door, characterized in that: include: An inner component, comprising an inner door, a first supporting frame and a first reinforcing frame connected thereto, wherein the inner door is hinged to the first supporting frame via a first rotating shaft, the inner door is provided with a first mounting portion, the first supporting frame is provided with a matching first mounting groove, and the first reinforcing frame is adapted to the shape of the inner door; An outer component, comprising an outer door, a second supporting frame and a second reinforcing frame connected thereto, the outer door being hinged to the second supporting frame via a second rotating shaft, the outer door being provided with a second mounting portion, the second supporting frame being provided with a matching second mounting groove, and the second reinforcing frame being adapted in shape to the outer door; Wherein, the first supporting frame and the second supporting frame are connected.

2. The manhole door according to claim 1, characterized in that: One of the second support frame and the outer door is provided with a limiting groove, and the other is provided with a limiting member which can be inserted into the limiting groove.

3. The manhole door according to claim 2, characterized in that: The limiting member is provided with a limiting hole, and the limiting member further comprises a locking member which can be inserted into the limiting hole, and the locking member extends out of the limiting hole.

4. The manhole door according to any one of claims 1 to 3, characterized in that: The outer door and the second supporting frame, as well as the inner door and the first supporting frame are connected by bolts.

5. The manhole door according to claim 4, characterized in that: The first supporting frame and the second supporting frame are provided with collars, and the collars are sleeved with the bolts.

6. The manhole door according to claim 1, characterized in that: The first mounting portion and the second mounting portion are respectively provided with sealing gaskets along the circumferential direction.

7. The manhole door according to claim 1, characterized in that: The first mounting portion and the second mounting portion are respectively provided with a heat insulation layer along the circumferential direction.

8. The manhole door according to claim 1, characterized in that: The inner door and the outer door are respectively provided with a first handle and a second handle.

9. The manhole door according to claim 8, characterized in that: The first handle is hinged to the inner door, and the second handle is hinged to the outer door.

10. A flue gas denitrification reactor, characterized in that: include: The body is provided with a reserved hole connecting the internal cavity of the body with the outside; The manhole door according to claims 1 to 9; Wherein, the manhole door is arranged on the outside of the reserved hole.

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