Self-standing steel structure chimney

Abstract

The invention discloses a self-standing steel structure chimney, and belongs to the technical field of steel structure chimneys.The self-standing steel structure chimney comprises an outer shell, an inner shell, a flow guide pipe, an air guide chassis, a pump flow cylinder and a pneumatic assembly, the flow guide pipe is arranged between the outer shell and the inner shell, and the air guide chassis is fixedly arranged in the inner shell; the air guide chassis is arranged between the outer shell and the inner shell, the flow guide pipe is arranged between the outer shell and the inner shell, the pump flow cylinder is fixedly arranged in the inner shell and communicates with the flow guide pipe, and a first air guide plate and a second air guide plate in the pneumatic assembly are movably arranged between the air guide chassis and the pump flow cylinder and are in linkage connection with a piston piece in the pump flow cylinder. The movable pneumatic assembly and the pump flow cylinder communicating with the flow guide pipe are arranged in the inner shell, and the pump flow speed of a cooling medium in the pump flow cylinder can be adjusted in a self-adaptive mode according to the temperature of high-temperature flue gas in the chimney, so that it is guaranteed that the temperature of the inner wall of the steel structure chimney is within a set threshold value all the time; and the mechanical strength of the steel structure chimney is prevented from being damaged by overheated smoke.

Description

Technical Field

[0001] The invention belongs to the technical field of steel structure chimneys, and in particular relates to a self-supporting steel structure chimney. Background Art

[0002] Steel chimney is one of the common chimney types in modern industry and construction. Steel chimney can be divided into three types: tower type, free-standing type and cable type. Steel chimney is usually used for tall chimney. Its structure consists of a quadrilateral steel structure frame and a cylindrical chimney, which is similar to the traditional frame core tube structure.

[0003] Steel structure chimneys not only have good earthquake resistance, but also have light weight, which reduces the requirements for the foundation and reduces transportation and installation costs. Steel structure chimneys usually use materials such as stainless steel and titanium steel composite plates. These materials have excellent corrosion resistance and can be used for a long time in harsh environments.

[0004] Since steel is a good thermal conductor, the strength and elastic modulus of steel will drop significantly when the temperature rises. When the temperature of blast furnace flue gas is too high, the strength of the steel will gradually fail, causing the steel structure to collapse easily at high temperatures. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the embodiments of the present invention is to provide a self-supporting steel structure chimney to solve the problems in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A self-supporting steel structure chimney, comprising a chimney component, wherein the chimney component comprises an outer shell, an inner shell and a guide pipe, wherein the inner shell is arranged on the inner wall side of the outer shell, the guide pipe is arranged between the outer shell and the inner shell, and the guide pipe is spirally arranged on the outer wall side of the inner shell;

[0008] A fixed plate assembly, the fixed plate assembly comprising an air guide base and air guide holes, the air guide base is fixedly arranged in the inner shell and arranged close to the bottom side of the inner shell, and a plurality of air guide holes are arranged on the air guide base;

[0009] A pump flow assembly, the pump flow assembly comprising a pump flow cylinder, a piston and a linkage rod, the pump flow cylinder is fixedly arranged in the inner cavity of the inner shell, and the pump flow cylinder is connected with the guide tube, a piston is slidably arranged inside the pump flow cylinder, a linkage rod is fixedly arranged on the piston, and the linkage rod is slidably inserted on the pump flow cylinder;

[0010] A pneumatic component, the pneumatic component includes a first air guide plate, a first air hole, a second air guide plate and a second air hole, the first air guide plate and the second air guide plate are movably arranged in the inner shell, and the first air guide plate and the second air guide plate are arranged between the air guide chassis and the pump flow cylinder, the second air guide plate is rotatably assembled on the first air guide plate, and the second air guide plate is arranged between the first air guide plate and the pump flow cylinder, the first air guide plate and the second air guide plate are respectively provided with a first air hole and a second air hole, and the first air hole and the second air hole are matched.

[0011] As a further solution of the present invention, the chimney component also includes a return pipe and an inlet pipe, which are respectively arranged at both ends of the guide pipe, and both the return pipe and the inlet pipe are connected to the pump flow cylinder, the return pipe is arranged on one side of the bottom of the inner shell, and the inlet pipe is arranged on one side of the top of the inner shell.

[0012] As a further solution of the present invention, both the return pipe and the inlet pipe are provided with one-way valve ports to limit the flow direction of the fluid in the return pipe and the inlet pipe.

[0013] As a further solution of the present invention, the chimney component also includes a cooler, which is arranged outside the outer shell and connected to the return pipe and the inlet pipe, and is used to input cooled fluid medium into the inlet pipe.

[0014] As a further solution of the present invention, the pneumatic component also includes a limit rod, a first slide groove part, an elastic part and a first push rod. A plurality of limit rods are circumferentially arranged on the first air guide plate, one end of the limit rod is fixedly connected to the first air guide plate, and the other end of the limit rod is slidably inserted on the air guide chassis. A plurality of first slide groove parts are also arranged on the side of the second air guide plate facing the pump flow cylinder. The first slide groove part is circumferentially arranged on the second air guide plate, and the linkage rod is fixedly connected to the first air guide plate after passing through the second air guide plate. An elastic part is also arranged between the second air guide plate and the pump flow cylinder, and a plurality of first push rods are arranged on one end of the pump flow cylinder facing the second air guide plate, and the first push rod is matched with the first slide groove part.

[0015] As a further solution of the present invention, the pneumatic component also includes a connecting plate, a second slide member and a second push rod. The connecting plate is rotatably arranged on the first air guide plate, and the connecting plate is fixedly connected to the second air guide plate. A plurality of second slide members are circumferentially arranged on the bottom of the connecting plate. The second slide members are arranged toward the side of the air guide chassis. A plurality of second push rods are also arranged at one end of the air guide chassis facing the first air guide plate. The second push rods are matched with the second slide member.

[0016] In summary, compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0017] The present invention arranges a spiral guide tube between the outer shell and the inner shell, and arranges an active pneumatic component and a pump flow tube connected to the guide tube inside the inner shell. The pump flow speed of the cooling medium in the pump flow tube can be adaptively adjusted according to the temperature of the high-temperature flue gas in the chimney, thereby ensuring that the inner wall temperature of the steel structure chimney is always within the set threshold value, preventing overheated flue gas from destroying the mechanical strength of the steel structure chimney. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a self-supporting steel structure chimney provided in an embodiment of the present invention.

[0019] Figure 2 The present invention is a schematic structural diagram of a self-supporting steel chimney provided in one embodiment of the present invention.

[0020] Figure 3 This is a schematic structural diagram of a self-supporting steel structure chimney indicated by A in an embodiment of the present invention.

[0021] Figure 4 The present invention is a schematic diagram of the bottom structure of a self-supporting steel chimney provided in an embodiment of the present invention.

[0022] Figure 5 This is a schematic structural diagram of a self-supporting steel structure chimney indicated by B in an embodiment of the present invention.

[0023] Figure markings: 1-chimney component, 101-outer shell, 102-inner shell, 103-guide pipe, 104-return pipe, 105-inlet pipe, 106-cooler, 2-fixed plate assembly, 201-air guide chassis, 202-air guide hole, 3-pump flow assembly, 301-pump flow cylinder, 302-piston member, 303-linkage rod, 4-pneumatic assembly, 401-first air guide plate, 402-first air hole, 403-limiting rod, 404-second air guide plate, 405-second air hole, 406-first slide groove member, 407-elastic member, 408-connecting plate, 409-second slide groove member, 410-first push rod, 411-second push rod. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] See also Figure 1-Figure 5A self-supporting steel structure chimney in an embodiment of the present invention comprises a chimney component 1, wherein the chimney component 1 comprises an outer shell 101, an inner shell 102 and a guide pipe 103, wherein the inner shell 102 is arranged on the inner wall side of the outer shell 101, the guide pipe 103 is arranged between the outer shell 101 and the inner shell 102, and the guide pipe 103 is spirally arranged on the outer wall side of the inner shell 102; a fixed plate assembly 2, wherein the fixed plate assembly 2 comprises an air guide chassis 201 and air guide holes 202, the air guide chassis 201 is fixedly arranged in the inner shell 102 and arranged close to the bottom side of the inner shell 102, and a plurality of air guide holes 202 are arranged on the air guide chassis 201; a pump flow component 3, the pump flow component 3 includes a pump flow cylinder 301, a piston 302 and a linkage rod 303, the pump flow cylinder 301 is fixedly arranged in the inner cavity of the inner shell 102, and the pump flow cylinder 301 is connected to the guide pipe 103, the pump A piston member 302 is slidably arranged inside the flow cylinder 301, and a linkage rod 303 is fixedly arranged on the piston member 302, and the linkage rod 303 is slidably inserted on the pump flow cylinder 301; a pneumatic component 4, the pneumatic component 4 includes a first air guide plate 401, a first air hole 402, a second air guide plate 404 and a second air hole 405, the first air guide plate 401 and the second air guide plate 404 are movably arranged in the inner shell 102, and the first air guide plate 401 and the second air guide plate 404 are arranged between the air guide chassis 201 and the pump flow cylinder 301, the second air guide plate 404 is rotatably assembled on the first air guide plate 401, and the second air guide plate 404 is arranged between the first air guide plate 401 and the pump flow cylinder 301, the first air guide plate 401 and the second air guide plate 404 are respectively provided with a first air hole 402 and a second air hole 405, and the first air hole 402 and the second air hole 405 are matched.

[0026] In actual application of this embodiment, when the self-supporting steel structure chimney is used, the high-temperature flue gas flows toward the top through the bottom of the outer shell 101 and the inner shell 102. In this process, since a plurality of air guide holes 202 are provided on the air guide chassis 201, the high-temperature flue gas can pass through the air guide holes 202 on the air guide chassis 201 to act on the first air guide plate 401, and the first air guide plate 401 and the second air guide plate 404 are rotated and connected, and when the first air guide plate 401 and the second air guide plate 404 are close to one side of the air guide chassis 201, the first air through hole 402 on the first air guide plate 401 and the second air through hole 405 on the second air guide plate 404 are rotated and misaligned, so that the first air guide plate 401 and ... The gas flow passage between the gas plate 401 and the second gas guide plate 404 is closed. At this time, when the first gas guide plate 401 is close to the side of the gas guide chassis 201, the first gas guide plate 401 moves toward the side away from the gas guide chassis 201 under the action of the gas pressure of the high-temperature flue gas, and simultaneously drives the second gas guide plate 404 to move toward the side away from the gas guide chassis 201. In this process, since one end of the first gas guide plate 401 is fixedly connected to the linkage rod 303, the linkage rod 303 can be synchronously driven to slide toward the inside of the pump flow cylinder 301. Since the pump flow cylinder 301 is connected to the guide pipe 103, when the linkage rod 303 moves toward the inside of the pump flow cylinder 301, the piston member 304 02 is capable of outputting the remaining fluid medium in the pump flow cylinder 301 to the guide tube 103, and making the fluid medium move along the spiral flow channel of the guide tube 103, so as to continuously absorb heat from the high-temperature flue gas, so that the inner wall temperature of the inner shell 102 is within a controllable threshold value. When the first air guide plate 401 and the second air guide plate 404 move to one side of the pump flow cylinder 301, the second air guide plate 404 rotates relative to the first air guide plate 401 under the driving action, so that the first air hole 402 on the first air guide plate 401 and the second air hole 405 on the second air guide plate 404 are aligned. At this time, the gas passage between the first air guide plate 401 and the second air guide plate 404 is opened, so that the high-temperature flue gas can pass through After passing through the passage, it continues to move along the inner wall of the inner shell 102, and the first air guide plate 401 and the second air guide plate 404 naturally fall to one end of the air guide chassis 201 under the action of gravity, and when the first air guide plate 401 moves to one side of the air guide chassis 201, the second air guide plate 404 rotates in the opposite direction again to close the gas passage between the first air guide plate 401 and the second air guide plate 404, thereby circulating the above process for continuous movement, and the higher the temperature of the released high-temperature flue gas, the faster the reciprocating frequency of the first air guide plate 401 and the second air guide plate 404, so that the speed of the pump flow in the pump flow cylinder 301 is faster, so that the cooling medium can flow at a high speed, thereby effectively absorbing the heat in the flue gas.

[0027] See also Figure 2In a preferred embodiment of the present invention, the chimney component 1 also includes a return pipe 104 and an inlet pipe 105, and the return pipe 104 and the inlet pipe 105 are respectively arranged at both ends of the guide pipe 103, and the return pipe 104 and the inlet pipe 105 are both connected to the pump flow cylinder 301, the return pipe 104 is arranged on the bottom side of the inner shell 102, and the inlet pipe 105 is arranged on the top side of the inner shell 102.

[0028] In actual application of this embodiment, the return pipe 104 and the inlet pipe 105 are both connected to the inner cavity of the pump flow barrel 301, and the cooling medium pumped out of the pump flow barrel 301 is preferentially output to the top side of the inner shell 102 through the inlet pipe 105, so that the fluid medium in a low temperature state flows along the top of the inner shell 102 to the bottom of the inner shell 102. During this process, the fluid medium inside the guide pipe 103 is continuously heated up, and the temperature increases faster as it is closer to the bottom of the inner shell 102, so that when the fluid medium flows along the guide pipe 103 to the outside of the inner shell 102, its heat absorption efficiency can be guaranteed, and the fluid medium on the top side of the inner shell 102 can reduce the exhaust flue gas temperature to within the set threshold.

[0029] In one case of this embodiment, both the return pipe 104 and the inlet pipe 105 are provided with one-way valve ports to limit the flow direction of the fluid in the return pipe 104 and the inlet pipe 105 so that the fluid medium flows unidirectionally in the inner cavity of the pump flow cylinder 301 .

[0030] In one case of the present embodiment, the chimney component 1 also includes a cooler 106, which is arranged on the outside of the outer shell 101 and is connected to the return pipe 104 and the inlet pipe 105. The cooler 106 is used to input the cooled fluid medium into the inlet pipe 105. The cooler 106 can be set as an external cooling structure with multiple layers of heat dissipation fins to increase the heat exchange rate between the fluid medium and the external environment. It can also be set as an external cooling pool. The specific structure of the cooler 106 is not limited here.

[0031] See also Figure 3 and Figure 4In a preferred embodiment of the present embodiment, the pneumatic assembly 4 further includes a limit rod 403, a first slide groove member 406, an elastic member 407 and a first push rod 410. A plurality of limit rods 403 are arranged circumferentially on the first air guide plate 401. One end of the limit rod 403 is fixedly connected to the first air guide plate 401, and the other end of the limit rod 403 is slidably inserted on the air guide chassis 201. The second air guide plate 404 is also provided with a plurality of limit rods 403 on the side facing the pump flow cylinder 301. There are a plurality of first slide groove members 406, which are circumferentially arranged on the second air guide plate 404, and the linkage rod 303 is fixedly connected to the first air guide plate 401 after passing through the second air guide plate 404, an elastic member 407 is further arranged between the second air guide plate 404 and the pump flow tube 301, and a plurality of first push rods 410 are arranged at one end of the pump flow tube 301 facing the second air guide plate 404, and the first push rods 410 are matched with the first slide groove member 406.

[0032] When the present embodiment is actually applied, the limiting rod 403 is fixedly arranged at the bottom of the first air guide plate 401, and the limiting rod 403 is slidingly assembled on the air guide chassis 201 in a limiting manner, so that during the longitudinal reciprocating motion of the first air guide plate 401, the first air guide plate 401 does not rotate in the circumferential direction, and during the process of the second air guide plate 404 following the movement of the first air guide plate 401, when the second air guide plate 404 moves toward the bottom of the pump flow cylinder 301, the first slide groove part 406 on one side of the second air guide plate 404 is pressed onto the first push rod 410, so that the second air guide plate 404 can rotate counterclockwise in the circumferential direction, and when the first push rod 410 is clamped in the notch between the first slide groove part 406, the second air hole 405 on the second air guide plate 404 is rotationally aligned with the first air hole 402 on the first air guide plate 401, thereby opening the gas passage between the first air guide plate 401 and the second air guide plate 404.

[0033] See also Figure 3 and Figure 5 In a preferred embodiment of the present invention, the pneumatic component 4 also includes a connecting disk 408, a second slide member 409 and a second push rod 411. The connecting disk 408 is rotatably set on the first air guide plate 401, and the connecting disk 408 is fixedly connected to the second air guide plate 404. A plurality of second slide members 409 are circumferentially arranged at the bottom of the connecting disk 408. The second slide members 409 are arranged toward the side of the air guide chassis 201. A plurality of second push rods 411 are also arranged at one end of the air guide chassis 201 facing the first air guide plate 401. The second push rods 411 are matched with the second slide members 409.

[0034] When the second air guide plate 404 is pressed against the second top rod 411, the second slide groove member 409 at the bottom of the first air guide plate 401 is pressed against the second top rod 411, so that the connecting plate 408 can rotate clockwise, thereby driving the second air guide plate 404 on the side of the first air guide plate 401 to rotate clockwise synchronously, so that the second air guide plate 404 rotates in the opposite direction on the first air guide plate 401. At this time, the second air hole 405 on the second air guide plate 404 is misaligned with the first air hole 402 on the first air guide plate 401, so that the gas passage between the first air guide plate 401 and the second air guide plate 404 is closed, so that the first air guide plate 401 and the second air guide plate 404 can move toward the side of the pump flow tube 301 under the action of the gas pressure of the high-temperature flue gas.

[0035] The above-mentioned embodiment of the present invention provides a self-supporting steel structure chimney, which provides a spiral guide tube 103 between the outer shell 101 and the inner shell 102, and provides an active pneumatic component 4 and a pump flow tube 301 connected to the guide tube 103 inside the inner shell 102. The pump flow rate of the cooling medium in the pump flow tube 301 can be adaptively adjusted according to the temperature of the high-temperature flue gas in the chimney, thereby ensuring that the inner wall temperature of the steel structure chimney is always within the set threshold value, preventing overheated flue gas from destroying the mechanical strength of the steel structure chimney.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-supporting steel structure chimney, characterized in that: The self-supporting steel structure chimney comprises: A chimney component, the chimney component comprising an outer shell, an inner shell and a flow guide pipe, the inner shell is arranged on the inner wall side of the outer shell, the flow guide pipe is arranged between the outer shell and the inner shell, and the flow guide pipe is spirally arranged on the outer wall side of the inner shell; A fixed plate assembly, the fixed plate assembly comprising an air guide base and air guide holes, the air guide base is fixedly arranged in the inner shell and arranged close to the bottom side of the inner shell, and a plurality of air guide holes are arranged on the air guide base; A pump flow assembly, the pump flow assembly comprising a pump flow cylinder, a piston and a linkage rod, the pump flow cylinder is fixedly arranged in the inner cavity of the inner shell, and the pump flow cylinder is connected with the guide tube, a piston is slidably arranged inside the pump flow cylinder, a linkage rod is fixedly arranged on the piston, and the linkage rod is slidably inserted on the pump flow cylinder; A pneumatic component, the pneumatic component includes a first air guide plate, a first air hole, a second air guide plate and a second air hole, the first air guide plate and the second air guide plate are movably arranged in the inner shell, and the first air guide plate and the second air guide plate are arranged between the air guide chassis and the pump flow cylinder, the second air guide plate is rotatably assembled on the first air guide plate, and the second air guide plate is arranged between the first air guide plate and the pump flow cylinder, the first air guide plate and the second air guide plate are respectively provided with a first air hole and a second air hole, and the first air hole and the second air hole are matched.

2. A self-supporting steel structure chimney according to claim 1, characterized in that: The chimney component also includes a return pipe and an inlet pipe, which are respectively arranged at both ends of the guide pipe, and are both connected to the pump flow cylinder. The return pipe is arranged on one side of the bottom of the inner shell, and the inlet pipe is arranged on one side of the top of the inner shell.

3. A self-supporting steel structure chimney according to claim 1, characterized in that: The return pipe and the inlet pipe are both provided with one-way valve ports to limit the flow direction of the fluid in the return pipe and the inlet pipe.

4. A self-supporting steel structure chimney according to claim 1, characterized in that: The chimney component also includes a cooler, which is arranged outside the outer shell and is connected with the return pipe and the inlet pipe. The cooler is used to input the cooled fluid medium into the inlet pipe.

5. The self-supporting steel structure chimney according to claim 1, characterized in that: The pneumatic assembly also includes a limit rod, a first slide groove part, an elastic part and a first push rod. A plurality of limit rods are circumferentially arranged on the first air guide plate, one end of the limit rod is fixedly connected to the first air guide plate, and the other end of the limit rod is slidably inserted on the air guide chassis. A plurality of first slide groove parts are also arranged on the side of the second air guide plate facing the pump flow cylinder. The first slide groove part is circumferentially arranged on the second air guide plate, and the linkage rod is fixedly connected to the first air guide plate after passing through the second air guide plate. An elastic part is also arranged between the second air guide plate and the pump flow cylinder, and a plurality of first push rods are arranged on one end of the pump flow cylinder facing the second air guide plate, and the first push rod is matched with the first slide groove part.

6. A self-supporting steel structure chimney according to claim 1, characterized in that: The pneumatic assembly also includes a connecting plate, a second slide member and a second push rod. The connecting plate is rotatably arranged on the first air guide plate, and the connecting plate is fixedly connected to the second air guide plate. A plurality of second slide members are circumferentially arranged on the bottom of the connecting plate. The second slide members are arranged toward the side of the air guide chassis. A plurality of second push rods are also arranged at one end of the air guide chassis facing the first air guide plate. The second push rods are matched with the second slide member.

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