CN111219121B

CN111219121B - A large double-layer sealed box with internal support structure and high temperature resistance

Info

Publication number: CN111219121B
Application number: CN202010008383.2A
Authority: CN
Inventors: 姜潮; 田万一; 刘坚; 高兴轲; 邓辉球
Original assignee: Hunan University
Current assignee: Hunan University
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2021-03-02
Anticipated expiration: 2040-01-06
Also published as: CN111219121A

Abstract

The present invention provides a large double-layer sealed box with internal support structure and high temperature resistance, comprising an outer layer box body, an inner layer box body, an inner support structure, a connecting device I and a connecting device II, wherein the inner layer box body is wrapped In the outer box, the outer box and the inner box are connected by an internal support structure and a connecting device II, and the outer box is formed by splicing a bottom plate and a plurality of outer plates to form a box structure Each part is connected by sliding connection by connecting device I, the inner box body is spliced by a bottom plate and a plurality of inner plates to form a box body structure, and the connection mode between each part is the same as that of the outer box body. The present invention can withstand and disperse the load generated by the internal operating device through the setting of the internal support structure; in addition, when the outer box body, the inner layer box body and the joints of the inner layer box body and the inner support steel and the sliding gasket will be exposed to heat and expand at high temperature. Relative sliding is generated, which effectively avoids the structural damage of the joint when it is thermally expanded.

Description

Large double-layer sealing box with internal supporting structure and high temperature resistance

Technical Field

The invention relates to the technical field of sealing, in particular to a large double-layer sealing box with an internal supporting structure and high temperature resistance.

Background

With the wider application of the seal box, the requirements on the sealing performance and the functional diversity of the seal box are stricter. In particular to the application fields of heat preservation boxes, safe cases, special box boxes and the like, and in order to achieve better sealing performance, a double-layer sealing structure box is provided.

The double-layer sealing box in the prior art has simple functions and single sealing performance, cannot be internally provided with a complex device for controlling and operating objects in the box body, and is difficult to ensure the operation stability and the structural safety particularly under the condition of bearing heavy load; when the box needs to bear a high-temperature environment, the double-layer sealed box body is subjected to thermal expansion at high temperature, and the box body structure is easily damaged in a common welding mode; for a large double-layer seal box, a common tailor-welding method cannot be disassembled and secondary assembly is carried out, and the manufacture and transportation are inconvenient.

Disclosure of Invention

Aiming at the problems that a complex control operation device is difficult to arrange in the double-layer seal box, the operation stability and the structural safety are difficult to ensure, and the expansion deformation is difficult at high temperature, the invention provides the large double-layer seal box with the internal supporting structure and high temperature resistance, which is convenient to disassemble and assemble and can bear heavy load and high temperature resistance. The specific technical scheme is as follows:

including outer box, inlayer box, internal support structure and connecting device II, the inlayer box is wrapped up in outer box, be connected through internal support structure and connecting device II between outer box and the inlayer box, outer box is formed by bottom plate and the concatenation of a plurality of planking, forms the box structure, passes through I sliding connection of connecting device between each part, the inlayer box is formed by the concatenation of bottom plate and a plurality of inner panel, forms the box structure, and connected mode is the same with outer box between each part, internal support structure includes the internal support steel, a plurality of planking include ladder horizontal planking, a plurality of inner panels include ladder horizontal inner panel, the internal support steel is located between ladder horizontal planking and the ladder horizontal inner panel, the internal support steel is used for bearing the heavy load, connecting device I includes first connecting bolt, and, The sealing bellows is arranged at each joint to ensure the integral sealing effect of the sealing box, when the sealing box is subjected to thermal expansion at high temperature, the joints of the outer layer box body and the inner layer box body can slide relatively, and the structural damage of the joints during thermal expansion is effectively avoided.

Furthermore, a flat bearing is arranged at the contact part of the first connecting bolt and the bottom plate or the outer plate, so that the head part of the first connecting bolt is provided with a bulge which is fixedly connected with the inner ring of the flat bearing, and the head part of the first connecting bolt and the bottom plate or the outer plate or the inner plate can slide relatively through the flat bearing.

Further, the vertical support section all opens the circular port that has two rows of multiseriate equidistant in the middle of the inside support steel, connecting device II includes sliding seal pad, horizontal connector, second connecting bolt and second coupling nut, inside support steel is connected fixedly as an organic whole through second connecting bolt and second coupling nut with sliding seal pad, horizontal connector, when the seal box receives the thermal energy under high temperature, can produce relative slip between inside support steel bottom and the sliding seal pad, the structural damage of junction when effectively having avoided the thermal expansion.

Furthermore, connecting device II still includes the second angle steel, the second angle steel inboard is connected with sliding seal pad, horizontal connector, the second angle steel can restrict the sliding space of inside support steel.

Furthermore, the connecting device I also comprises a miniature circulating air pump which comprises an air pump main body, an exhaust pipe, a high-pressure nozzle, an air suction pipe, an air inlet pipe and a pressure and temperature sensor, the high-pressure nozzle is positioned on the outer plate and communicated with the semi-closed space, one end of the air pump main body is communicated with the high-pressure nozzle through an exhaust pipe, the other end of the air pump main body is communicated with an air suction pipe and an air inlet pipe, high-pressure gas is sprayed in through the air inlet pipe and is sprayed out from the high-pressure nozzle through the air pump main body and the exhaust pipe, so that a layer of air film is formed on the surface of the first angle steel, which is only contacted with the outer plate, the pressure and temperature sensor is arranged on the air inlet pipe, the temperature in the box body is monitored in real time, so that the pressure of the injected high-pressure gas changes along with the change of the expansion amount, the air suction pipe is used for recycling a small amount of lost gas into the air pump main body, so that high-pressure gas can be fully utilized.

Furthermore, a certain number of pits are formed in the surface, in contact with the first angle steel, of the outer plate or the inner plate, and the pits prevent loss of high-pressure gas, so that a gas film is well maintained.

Has the advantages that: according to the large double-layer seal box with the internal support structure and the high temperature resistance, the internal operation device can be arranged in the seal box through the rigid structure formed by the internal support steel and the stepped horizontal inner and outer plates, and the load in each direction generated by the internal operation device can be borne and dispersed, so that the seal box can still stably and safely work under the heavy load condition; through the sliding connection arrangement of the connecting device I between the connecting positions of the inner-layer box body and the outer-layer box body in the double-layer sealing box and the connecting device II between the inner supporting structure and the stepped horizontal inner outer plate, the structural damage caused by thermal expansion in a high-temperature environment in a traditional welding mode can be effectively avoided, and through the arrangement of the connecting bolt and the connecting nut, the quick assembly and disassembly are facilitated, and the manufacturing and the transportation are facilitated; through the setting of sealed bellows, can guarantee the leakproofness of seal box.

Drawings

FIG. 1 is an isometric view of a double-deck seal box in an embodiment of the invention;

FIG. 2 is a cross-sectional view of a double-deck seal box in an embodiment of the present invention;

FIG. 3 is a cross-sectional view of the connection device I at I in FIG. 2;

FIG. 4 is a cross-sectional view of the connection assembly IF;

FIG. 5 is a cross-sectional view of the connection device II at II in FIG. 2;

figure 6 is a side view of the inner support steel in the embodiment of figure 2.

Reference numerals: 1-step lower outer plate; 2-step lower inner plate; 3-internal support steel; 3.1-second angle steel; 3.2-sliding gaskets; 3.3-horizontal linker; 3.4-second connecting bolt; 3.5-second coupling nut; 4-a stepped horizontal outer plate; 5-a stepped horizontal inner plate; 6-step upper outer plate; 7-step upper inner plate; 8-a top outer plate; 9-a top inner panel; 10-a back vertical outer plate; 10.1-first connecting bolt; 10.2-first coupling nut; 10.3-high pressure nozzle; 10.4-first angle steel; 10.5-plane bearing; 10.6-exhaust pipe; 10.7-air pump body; 10.8-suction pipe; 10.9-pressure temperature sensor; 10.10-inlet pipe; 11-back vertical inner plate; 12-left outer panel; 13-a base plate; 14-an outer door; 15-a support; 16-sealing the bellows.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.

As shown in figures 1 and 2, the large double-layer sealed box with the internal supporting structure and high temperature resistance is formed by splicing a bottom plate 13 and a plurality of outer plates, wherein the plurality of outer plates comprise a step lower side outer plate 1, a step horizontal outer plate 4, a step upper side outer plate 6, a top outer plate 8, a back vertical outer plate 10, a left side outer plate 12 and a right side outer plate, an outer door 14 is hinged on the left side outer plate 12, the outer door 14 can be opened around the rotation axis of the outer door, and all the components of the outer box except the outer door 14 are connected through a connecting device I; the inlayer box is wrapped up in outer box, the inlayer box is formed by bottom plate 13 and a plurality of inner panel concatenation, a plurality of inner panels include ladder downside inner panel 2, ladder horizontal inner panel 5, ladder upside inner panel 7, top inner panel 9, the perpendicular inner panel 11 of back, left side inner panel and right side inner panel, it has the inner door to articulate on the inner panel of left side, the inlayer box is all connected through connecting device I equally between each component except the inner door. Sliding connection between each connecting plate of outer box body in the inlayer is guaranteed to connecting device I, can effectively avoid the structural damage because of the thermal expansion takes place under high temperature environment.

As shown in fig. 1 and 2, the internal supporting structure comprises an internal supporting steel 3 and a connecting device ii, the internal supporting steel 3 is located between the step horizontal outer plate 4 and the step horizontal inner plate 5, a concrete support body 15 is poured on the lower surface of the step horizontal outer plate 4, the internal supporting steel 3 and the support body 15 form a rigid structure, a control and operation device can be arranged on the upper surface of the front step horizontal inner plate 5 of the double-layer sealed box, and the rigid structure enables the box body to disperse and bear load integrally when forces in three directions perpendicular to each other and moments around the axial direction are transmitted from the step horizontal inner plate 5, so that the deformation resistance of the double-layer sealed box is effectively improved.

As shown in fig. 2 and 5, for example, the connection mode between the bottom of the internal support steel 3 and the stepped horizontal outer plate 4 is adopted, the bottom surface of the second angle steel 3.1 is welded with the upper surface of the stepped horizontal outer plate 4, and a certain distance is left between the second angle steel 3.1 and the leftmost end of the stepped horizontal outer plate 4; the horizontal connecting body 3.3 is provided with a groove slightly larger than the diameter of the bolt head of the second connecting bolt 3.4, the lower surface of the horizontal connecting body 3.3 is welded with the upper surface of the stepped horizontal outer plate 4, and the left end of the horizontal connecting body 3.3 is welded with the right side of the second angle steel 3.1; the bottom of the internal supporting steel 3 and the sliding sealing gasket 3.2 are both provided with holes slightly larger than the diameter of the second connecting bolt 3.4, the sliding sealing gasket 3.2 is arranged between the bottom of the internal supporting steel 3 and the horizontal connecting body 3.3, and the internal supporting steel 3, the sliding sealing gasket 3.2, the horizontal connecting body 3.3 and the stepped horizontal outer plate 4 are connected into a whole through the second connecting bolt 3.4 and the second connecting nut 3.5. When the internal support structure is subjected to thermal expansion at high temperature, the internal support steel 3 and the stepped horizontal outer plate 4 are not mutually obstructed due to deformation caused by expansion, and the structural damage is further caused, because the bottom of the internal support steel 3 is not fixedly connected with the stepped horizontal outer plate 4 but is in contact with the sliding seal gasket 3.2.

As shown in fig. 3 and 4, taking the connection mode between the back vertical outer plate 10 and the bottom plate 13 as an example, the connection device i includes a first connection bolt 10.1, a first connection nut 10.2, a first angle steel 10.4, a plane bearing 10.5 and a sealing corrugated pipe 16, the sealing corrugated pipe 16 is installed at each connection position of the inner layer box body and the outer layer box body to ensure the whole sealing effect of the seal box, the lower end of the back vertical outer plate 10 has a small section bent, the bent section is provided with holes with the same outer diameters as the first connection bolt 10.1 and the high pressure nozzle 10.3, and the lower surface of the bent section is provided with a certain number of pits, the bottom surface of the first angle steel 10.4 is welded with the upper surface of the bottom plate 13, the upper surface of the first angle steel 10.4 is in contact with the lower surface of the small section bent at the lower end of the back vertical outer plate 10, the first angle steel 10.4 is distributed at two sides in pairs, a semi-enclosed space is formed in, the head of the first connecting bolt 10.1 is located in the center of a semi-closed space, the head of the first connecting bolt 10.1 can move freely in the semi-closed space, a bulge is arranged on the upper surface of the head of the first connecting bolt 10.1, the bulge is fixed with the inner diameter of the plane bearing 10.5 without clearance, friction force generated when the first connecting bolt 10.1 slides can be reduced through the arrangement of the plane bearing 10.5, and the back vertical outer plate 10 and the first angle steel 10.4 are connected and fixed together through the first connecting bolt 10.1 and the first connecting nut 10.2. The side face of the air pump main body 10.7 is welded with the outer side of the back vertical outer plate 10, the air pump main body 10.7 is connected with a high-pressure nozzle 10.3 arranged in a hole at the bending position of the back vertical outer plate 10 through an exhaust pipe 10.6, the other end of the air pump main body 10.7 is connected with an air suction pipe 10.8 and an air inlet pipe 10.10, high-pressure gas (nitrogen) is sprayed through the air inlet pipe 10.10 and is sprayed out of the high-pressure nozzle 10.3 through the air pump main body 10.7 and the exhaust pipe 10.6, so that an air film is formed between the lower surface of the bending position and the upper surface of the first angle steel 10.4, and a pit is formed in the lower surface of the bending section of the back vertical outer plate 10, so that; the pressure and temperature sensor 10.9 is arranged on the air inlet pipe 10.10, and the pressure of the injected gas (nitrogen) is changed along with the change of the expansion amount by monitoring the temperature in the box body in real time; the air suction pipe 10.8 recovers a small amount of lost gas into the air pump main body 10.7, so that high-pressure gas can be fully utilized. When the box body is heated and expanded, because an air film is formed between the lower surface of the bent part of the back vertical outer plate 10 and the upper surface of the first angle steel 10.4, the bottom plate 13 and the back vertical outer plate 10 slide relatively, so that the deformation of the bottom plate and the back vertical outer plate cannot be obstructed mutually, and the semi-closed space can better limit the sliding space of the first connecting bolt 10.1 and the bottom plate 13.

As shown in FIG. 6, the middle vertical supporting section of the inner supporting steel 3 is provided with two rows and multiple columns of circular holes with equal intervals to ensure the air flow between the inner and outer box bodies.

It should be noted that the above-mentioned embodiments illustrate only preferred embodiments of the present invention, and therefore, the present invention is not limited thereto, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and equivalents can be made in the technical solutions described in the foregoing embodiments, or some technical features of the present invention can be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A large double-layer sealed box with an inner support structure and high temperature resistance, comprising an outer box body, an inner layer box, an inner support structure and a connecting device II, and the inner layer box is wrapped in the outer box body , the outer box body and the inner layer box body are connected by an internal support structure and a connecting device II, and the outer layer box body is spliced by a bottom plate and a plurality of outer plates to form a box body structure. Through the sliding connection of the connecting device I, the inner box body is formed by splicing a bottom plate and a plurality of inner plates to form a box body structure. The connection method between each part is the same as that of the outer box body. It is characterized in that the inner support The structure includes an inner support steel, the plurality of outer panels includes a stepped horizontal outer panel, the plurality of inner panels includes a stepped horizontal inner panel, the inner support steel is located between the stepped horizontal outer panel and the stepped horizontal inner panel, the The inner support steel is used to bear the load transmitted by the operating device arranged in the sealed box, and the connecting device I includes a first connecting bolt, a first connecting nut, a first angle steel and a sealing bellows, and the first angle steel is paired. It is installed at the junction of the outer plate and the bottom plate or the outer plate and the outer plate or the inner plate and the bottom plate or the inner plate and the inner plate, and has one end only in contact with the outer plate or the inner plate to form a semi-enclosed space, the first The head of the connecting bolt is located in the semi-enclosed space, and the head of the first connecting bolt is in contact with the bottom plate, the outer plate or the inner plate, the first connecting nut is matched with the first connecting bolt, and the sealing bellows is installed at each connection. , to ensure the overall sealing effect of the sealing box. When the sealing box is heated and expanded at high temperature, the joints of the outer box and the inner box will slide relative to each other, which effectively avoids the structural damage of the joints when they are thermally expanded.

2. A large double-layer sealed box with an internal support structure and high temperature resistance according to claim 1, characterized in that, a plane bearing is provided at the contact part between the first connecting bolt and the bottom plate or the outer plate, so the first The head of the connecting bolt is provided with a protrusion, the protrusion is fixedly connected with the inner ring of the plane bearing, and the head of the first connecting bolt of the plane bearing can slide relative to the bottom plate or the outer plate or the inner plate.

3 . The large double-layer sealed box with internal support structure and high temperature resistance according to claim 1 , wherein the vertical support section in the middle of the internal support steel has two rows and multiple columns of equidistant circles. 4 . The connecting device II includes a sliding gasket, a horizontal connecting body, a second connecting bolt and a second connecting nut, the horizontal connecting body is provided with a groove larger than the diameter of the bolt head of the second connecting bolt, and the inner supporting steel bottom A hole larger than the diameter of the second connecting bolt is opened on the sliding gasket and the sliding gasket, a sliding gasket is provided between the bottom of the inner support steel and the horizontal connecting body, and the inner supporting steel is connected with the sliding gasket and the horizontal connecting body through the second connection. The bolt and the second connecting nut are connected and fixed as a whole. When the sealing box is heated and expanded at a high temperature, there will be relative sliding between the bottom of the inner support steel and the sliding gasket, which effectively avoids the structural damage of the connection during thermal expansion.

4. A large double-layer sealed box with an internal support structure and high temperature resistance according to claim 3, wherein the connecting device II further comprises a second angle steel, the inner side of the second angle steel and the sliding gasket , The horizontal connecting body is connected, and the second angle steel can limit the sliding space of the inner supporting steel.

5. A large double-layer sealed box with internal support structure and high temperature resistance according to any one of claims 1 to 4, characterized in that, the connecting device I further comprises a micro-circulating air pump, the micro-circulating The air pump includes an air pump main body, an exhaust pipe, a high-pressure nozzle, an air intake pipe, an air intake pipe, and a pressure and temperature sensor. The high-pressure nozzle is located on the outer plate and communicates with the semi-closed space. One end of the air pump main body is communicated with the high-pressure nozzle through the exhaust pipe. The other end of the main body of the air pump is connected to the suction pipe and the air intake pipe, and the high-pressure gas is injected through the air inlet pipe, and then ejected from the high-pressure nozzle through the main body of the air pump and the exhaust pipe, so that a layer of gas film is formed on the side of the first angle steel that only contacts the outer plate. , the pressure and temperature sensor is installed on the intake pipe, and by monitoring the temperature in the box in real time, the pressure of the injected high-pressure gas changes with the change of the expansion amount. The intake pipe is used to recover a small amount of gas lost to the main body of the intake pump so that the high-pressure gas can be fully utilized.

6. A large double-layer sealed box with internal support structure and high temperature resistance according to claim 5, characterized in that, a certain number of recesses are opened on the side of the outer plate or the inner plate that only contacts the first angle steel. The pits prevent the loss of high-pressure gas, so that the gas film can be better maintained.