A deflection type high temperature exhaust valve for industrial kilns

Abstract

The present invention relates to the technical field of high-temperature exhaust valves, and in particular to a deflection-type high-temperature exhaust valve for an industrial kiln, which comprises a sealing box, a valve body, a valve cover and a driving source. When it is necessary to discharge the smoke in the industrial kiln, under the action of the driving source, the third spherical plate and the fourth spherical plate are relatively rotated, and the through groove is changed from a blocked state to a conducting state. When the third spherical plate and the fourth spherical plate move relative to each other, since the outer wall of the third spherical plate can fit the inner wall of the first spherical plate, and the outer wall of the fourth spherical plate can fit the inner wall of the second spherical plate, the condensate on the third spherical plate can be cleaned by the edge of the first spherical plate, and the condensate on the fourth spherical plate can be cleaned by the second spherical plate, ensuring that the condensate on the third spherical plate and the fourth spherical plate can be cleaned, preventing the condensate on the third spherical plate or the fourth spherical plate from affecting the blocking of the through groove.

Description

Technical Field

[0001] The invention relates to the technical field of high-temperature exhaust valves, and in particular to a deflection-type high-temperature exhaust valve for an industrial furnace. Background Art

[0002] At present, the high-temperature exhaust valve technically adopts a deflection-type opening mechanism. For example, the Chinese invention patent with the authorization announcement number CN109139949B in the prior art discloses a deflection-type high-temperature exhaust valve for industrial kilns. The opening and closing device of the deflection-type high-temperature exhaust valve in the public document drives the valve cover to move away from or fit the air outlet in translation. Each time the valve cover moves away from or fits the air outlet in translation, mutual friction will occur between the valve cover and the valve body, so that the condensation condensed on the valve cover and the valve body is automatically cleaned in time. However, in the process of cleaning the valve cover, the movement of the valve cover makes it impossible to completely clean the condensation on the surface of the valve cover. These condensations remaining on the valve cover will affect the sealing between the upper valve cover and the valve body. Summary of the invention

[0003] The invention provides a deflection type high temperature exhaust valve for an industrial furnace, so as to solve the problem that the valve cover of the existing high temperature exhaust valve cannot be cleaned during maintenance.

[0004] The deflection type high temperature exhaust valve for industrial kilns of the present invention adopts the following technical solution:

[0005] A deflection type high temperature exhaust valve for an industrial kiln comprises a sealing box, a valve body, a valve cover and a driving source.

[0006] The sealing box has an installation cavity inside, and an air inlet and an air outlet connected to the external environment are arranged on the sealing box; the valve body is arranged at the air inlet in the installation cavity, and the valve body includes a first spherical plate and a second spherical plate, the sphere centers corresponding to the first spherical plate and the second spherical plate are the same, the inner diameter of the first spherical plate is smaller than the inner diameter of the second spherical plate, and the outer diameter of the first spherical plate is larger than the inner diameter of the second spherical plate; the edge of the first spherical plate is fixedly connected to the edge of the second spherical plate, and the first spherical plate and the second spherical plate block the area of ​​the air inlet A through groove is provided, which is connected to the air inlet; the valve cover includes a third spherical plate and a fourth spherical plate, the spherical centers corresponding to the third spherical plate and the fourth spherical plate are the same, and the outer diameter of the third spherical plate is equal to the inner diameter of the fourth spherical plate; the outer wall of the third spherical plate can fit with the inner wall of the first spherical plate, the outer wall of the fourth spherical plate can fit with the inner wall of the second spherical plate, and the third spherical plate and the fourth spherical plate can block the through groove; the driving source is used to drive the third spherical plate and the fourth spherical plate to rotate relative to each other.

[0007] Furthermore, the first spherical plate is one-Nth of a sphere, where N is greater than 2; and the second spherical plate is one-Mth of a sphere, where M is greater than 2.

[0008] Furthermore, the third spherical plate and the fourth spherical plate are both hemispherical, wherein the third spherical plate and the fourth spherical plate both have a blocking portion and a breathable portion, the blocking portion on the third spherical plate and the fourth spherical plate can block the through groove; the breathable portion on the third spherical plate and the fourth spherical plate can ventilate after the blocking portion unblocks the through groove.

[0009] Furthermore, a plurality of air holes are provided at the air permeable portions of the third spherical plate and the fourth spherical plate.

[0010] Further, the third spherical plate and the fourth spherical plate can form a collecting chamber when blocking the through groove.

[0011] Further, the driving source includes a first driving part and a second driving part, the first driving part is used to drive the third spherical plate to rotate, and the second driving part is used to drive the fourth spherical plate to rotate.

[0012] Furthermore, the first driving part includes a first power source and a first transmission rod, the first transmission rod is fixedly connected to the outer side wall of the third spherical plate, and the first power source is used to drive the first transmission rod to rotate.

[0013] Furthermore, the second driving part includes a second power source and a second transmission rod, the second transmission rod is fixedly connected to the outer side wall of the fourth spherical plate, and the second power source is used to drive the second transmission rod to rotate.

[0014] Furthermore, the first transmission rod is coaxially inserted into the second transmission rod, and the first transmission rod and the second transmission rod can rotate relative to each other.

[0015] Furthermore, the first power source and the second power source are both drive motors.

[0016] The beneficial effects of the present invention are as follows: the deflection type high temperature exhaust valve for industrial kilns of the present invention comprises a sealing box, a valve body, a valve cover and a driving source, the air inlet of the sealing box is installed at the exhaust port of the industrial kiln, in the initial state, the third spherical plate and the fourth spherical plate are in a state of blocking the through groove, when the through groove is blocked, the smoke in the industrial kiln cannot enter the installation cavity through the air inlet, when the smoke in the industrial kiln needs to be discharged, under the action of the driving source, the third spherical plate and the fourth spherical plate are relatively rotated, and the through groove is blocked by the sealed state. The blocked state is changed into the conducting state. When the third spherical plate and the fourth spherical plate move relative to each other, since the outer wall of the third spherical plate can fit with the inner wall of the first spherical plate, and the outer wall of the fourth spherical plate can fit with the inner wall of the second spherical plate, the condensate on the third spherical plate can be cleaned by the edge of the first spherical plate, and the condensate on the fourth spherical plate can be cleaned by the second spherical plate, ensuring that the condensate on the third spherical plate and the fourth spherical plate can be cleaned, preventing the condensate on the third spherical plate or the fourth spherical plate from affecting the blocking of the through groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A schematic diagram of the structure of a deflection type high temperature exhaust valve for an industrial furnace provided by an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of the structure of a deflection-type high-temperature exhaust valve for an industrial furnace provided by an embodiment of the present invention with part of the sealing box hidden;

[0020] Figure 3 An exploded view of the structure of a deflection-type high-temperature exhaust valve for an industrial furnace provided in an embodiment of the present invention with part of the sealing box hidden.

[0021] In the figure: 110, sealing box; 111, installation cavity; 112, air outlet; 120, first spherical plate; 130, second spherical plate; 140, through groove; 150, third spherical plate; 160, fourth spherical plate; 170, air vent; 180, collecting cavity; 210, first transmission rod; 220, second transmission rod; 230, driving motor. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is 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 a limitation to the present invention.

[0024] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] like Figures 1 to 3 As shown, a deflection type high temperature exhaust valve for an industrial furnace provided by an embodiment of the present invention includes a sealing box 110, a valve body, a valve cover and a driving source.

[0026] The sealed box 110 has an installation cavity 111 inside, and is provided with an air inlet and an air outlet 112 connected to the external environment. Specifically, the air inlet of the sealed box 110 is installed at the smoke exhaust port of the industrial kiln, and the smoke entering the sealed box 110 can be discharged from the sealed box 110 through the air outlet 112 on the sealed box 110.

[0027] The valve body is arranged at the air inlet in the installation cavity 111, and the valve body includes a first spherical plate 120 and a second spherical plate 130. The first spherical plate 120 and the second spherical plate 130 are arranged adjacent to each other, and the first spherical plate 120 and the second spherical plate 130 are both fixedly connected to the sealing box 110, and the first spherical plate 120 and the second spherical plate 130 are both partially spherical. The sphere centers corresponding to the first spherical plate 120 and the second spherical plate 130 are the same, the inner diameter of the first spherical plate 120 is smaller than the inner diameter of the second spherical plate 130, and the outer diameter of the first spherical plate 120 is larger than the inner diameter of the second spherical plate 130, so as to ensure that there is an overlapping area between the first spherical plate 120 and the second spherical plate 130. The edge of the first spherical plate 120 is fixedly connected to the edge of the second spherical plate 130. The area where the first spherical plate 120 and the second spherical plate 130 block the air inlet is provided with a through groove 140. The through groove 140 is connected to the air inlet. The smoke generated in the industrial kiln needs to enter the installation cavity 111 through the air inlet and the through groove 140. The first spherical plate 120 and the second spherical plate 130 together form a valve body structure.

[0028] The valve cover includes a third spherical plate 150 and a fourth spherical plate 160. The third spherical plate 150 and the fourth spherical plate 160 have the same spherical center. The outer diameter of the third spherical plate 150 is equal to the inner diameter of the fourth spherical plate 160. The third spherical plate 150 and the fourth spherical plate 160 can rotate relative to each other. When the third spherical plate 150 and the fourth spherical plate 160 rotate relative to each other, the third spherical plate 150 can enter the interior of the fourth spherical plate 160. The third spherical plate 150 and the first spherical plate 120 have the same spherical center, and the fourth spherical plate 160 and the second spherical plate 130 have the same spherical center. The outer wall of the third spherical plate 150 can fit with the inner wall of the first spherical plate 120, and the outer wall of the fourth spherical plate 160 can fit with the inner wall of the second spherical plate 130. When the third spherical plate 150 and the fourth spherical plate 160 rotate relative to each other, the third spherical plate 150 can move relative to the first spherical plate 120, and the fourth spherical plate 160 can move relative to the second spherical plate 130. The third spherical plate 150 and the fourth spherical plate 160 can block the through groove 140. When the third spherical plate 150 and the fourth spherical plate 160 block the through groove 140, the smoke generated in the industrial kiln cannot enter the installation cavity 111 through the through groove 140. The outer walls of the third spherical plate 150 and the fourth spherical plate 160 are always in direct contact with the smoke, so condensation is easily generated on the third spherical plate 150 and the fourth spherical plate 160. When the smoke generated in the industrial kiln needs to be cleaned, the smoke generated in the industrial kiln cannot enter the installation cavity 111 through the through groove 140. When the flue gas is discharged, the third spherical plate 150 and the fourth spherical plate 160 move relative to each other, and the condensate on the surface of the third spherical plate 150 can be cleaned by the edge of the first spherical plate 120, and the condensate on the surface of the fourth spherical plate 160 can be cleaned by the edge of the second spherical plate 130, ensuring that the surfaces of the third spherical plate 150 and the fourth spherical plate 160 remain clean, and preventing the condensate on the third spherical plate 150 or the fourth spherical plate 160 from affecting the blocking of the through groove 140. The driving source is used to drive the third spherical plate 150 and the fourth spherical plate 160 to rotate relative to each other, and when the flue gas generated in the industrial kiln needs to be discharged, the driving source is started.

[0029] The present invention is a deflection type high temperature exhaust valve for an industrial kiln. The air inlet of the sealing box 110 is installed at the exhaust port of the industrial kiln. In the initial state, the third spherical plate 150 and the fourth spherical plate 160 are in a state of blocking the through groove 140. When the through groove 140 is blocked, the smoke in the industrial kiln cannot enter the installation cavity 111 through the air inlet. When the smoke in the industrial kiln needs to be discharged, the third spherical plate 150 and the fourth spherical plate 160 are relatively rotated under the action of a driving source, and the through groove 140 is changed from a blocked state to a conducting state. When the four spherical plates 160 move relative to each other, since the outer wall of the third spherical plate 150 can fit with the inner wall of the first spherical plate 120, and the outer wall of the fourth spherical plate 160 can fit with the inner wall of the second spherical plate 130, the condensate on the third spherical plate 150 can be cleaned by the edge of the first spherical plate 120, and the condensate on the fourth spherical plate 160 can be cleaned by the second spherical plate 130, ensuring that the condensate on the third spherical plate 150 and the fourth spherical plate 160 can be cleaned, preventing the condensate on the third spherical plate 150 or the fourth spherical plate 160 from affecting the blocking of the through groove 140.

[0030] In one embodiment, the first spherical plate 120 is one-Nth of a sphere, where N is greater than 2; the second spherical plate 130 is one-Mth of a sphere, where M is greater than 2. For example, the first spherical plate 120 is one-third of a sphere, and the second spherical plate 130 is one-third of a sphere. Specifically, by setting the size of the first spherical plate 120 and the second spherical plate 130, it is ensured that after the third spherical plate 150 and the fourth spherical plate 160 move relative to each other, the smoke in the industrial kiln can smoothly enter the installation cavity 111, and the situation that the smoke in the industrial kiln still cannot enter the installation cavity 111 after the third spherical plate 150 and the fourth spherical plate 160 move relative to each other is prevented.

[0031] In one embodiment, the third spherical plate 150 and the fourth spherical plate 160 are both hemispherical, wherein the third spherical plate 150 and the fourth spherical plate 160 both have a blocking portion and a venting portion, wherein in the third spherical plate 150, the blocking portion and the venting portion both occupy half of the third spherical plate 150, and in the fourth spherical plate 160, the blocking portion and the venting portion both occupy half of the fourth spherical plate 160, and the blocking portion of the third spherical plate 150 and the fourth spherical plate 160 is arranged below the venting portion. The blocking portion on the third spherical plate 150 and the fourth spherical plate 160 can block the through groove 140; the venting portion on the third spherical plate 150 and the fourth spherical plate 160 can be ventilated after the blocking portion unblocks the through groove 140. Specifically, in the initial state, the blocking parts of the third spherical plate 150 and the fourth spherical plate 160 jointly block the through groove 140. At this time, the third spherical plate 150 and the fourth spherical plate 160 form a spherical structure. When the third spherical plate 150 and the fourth spherical plate 160 move relative to each other, the third spherical plate 150 rotates counterclockwise and the fourth spherical plate 160 rotates clockwise, the blocking parts of the third spherical plate 150 and the fourth spherical plate 160 gradually release the blocking of the through groove 140, and the air permeable parts of the third spherical plate 150 and the fourth spherical plate 160 produce an overlapping area. In this state, the air permeable parts are in the overlapping area, which facilitates the smoke in the industrial kiln to smoothly enter the installation cavity 111.

[0032] In one embodiment, a plurality of air holes 170 are provided at the air permeable portions of the third spherical plate 150 and the fourth spherical plate 160. When the third spherical plate 150 and the fourth spherical plate 160 release the blockage of the through groove 140, the smoke in the industrial kiln passes through the air holes 170 and enters the installation cavity 111. The air holes 170 on the third spherical plate 150 and the fourth spherical plate 160 can filter the smoke, thereby reducing excessive particulate impurities in the smoke entering the installation cavity 111.

[0033] It can be understood that when the third spherical plate 150 and the fourth spherical plate 160 move relative to each other, the edge of the third spherical plate 150 can clean the inner wall of the fourth spherical plate 160, and the edge of the fourth spherical plate 160 can clean the outer wall of the third spherical plate 150 to prevent particulate matter in the smoke from clogging the air vents 170.

[0034] In one embodiment, the third spherical plate 150 and the fourth spherical plate 160 can form a collecting chamber 180 when blocking the through groove 140. It can be understood that when the blocking parts of the third spherical plate 150 and the fourth spherical plate 160 unblock the through groove 140, the condensate on the surface of the third spherical plate 150 can be cleaned off by the edge of the first spherical plate 120, and the condensate on the surface of the fourth spherical plate 160 can be cleaned off by the edge of the second spherical plate 130. Specifically, when the blocking parts of the third spherical plate 150 and the fourth spherical plate 160 unblock the through groove 140, the third spherical plate 150 rotates counterclockwise, and the fourth spherical plate 160 rotates clockwise, and the condensate on the outer surface of the third spherical plate 150 is cleaned by the inner edge of the first spherical plate 120, and the condensate on the outer surface of the fourth spherical plate 160 is cleaned by the inner edge of the second spherical plate 130. As the smoke is discharged from the air vent 170, the flow of the smoke can transport the condensate cleaned from the surface of the third spherical plate 150 and the fourth spherical plate 160 to the collecting chamber 180, preventing the cleaned condensate from falling into the industrial kiln again through the air inlet. When the high-temperature exhaust valve needs to be maintained, it is only necessary to clean the condensate in the collecting chamber 180, thereby reducing the workload of maintaining the high-temperature exhaust valve and improving the efficiency of maintaining the high-temperature exhaust valve.

[0035] In one embodiment, the driving source includes a first driving unit and a second driving unit, the first driving unit is used to drive the third spherical plate 150 to rotate, and the second driving unit is used to drive the fourth spherical plate 160 to rotate. When it is necessary to discharge the smoke generated in the industrial kiln, the first driving unit and the second driving unit are started at the same time, so that the fourth spherical plate 160 and the third spherical plate 150 can move rapidly relative to each other.

[0036] In one embodiment, the first driving unit includes a first power source and a first transmission rod 210, the first transmission rod 210 is fixedly connected to the outer wall of the third spherical plate 150, and the first power source is used to drive the first transmission rod 210 to rotate. When the first driving source drives the first transmission rod 210 to rotate, the rotation of the first transmission rod 210 can drive the third spherical plate 150 to rotate synchronously.

[0037] In one embodiment, the second driving unit includes a second power source and a second transmission rod 220, the second transmission rod 220 is fixedly connected to the outer wall of the fourth spherical plate 160, and the second power source is used to drive the second transmission rod 220 to rotate. When the second driving source drives the second transmission rod 220 to rotate, the rotation of the second transmission rod 220 can drive the fourth spherical plate 160 to rotate synchronously.

[0038] In one embodiment, the first transmission rod 210 is coaxially inserted into the second transmission rod 220, and the first transmission rod 210 and the second transmission rod 220 can rotate relative to each other. The first transmission rod 210 serves as the rotation axis of the third spherical plate 150, and the second transmission rod 220 serves as the rotation axis of the fourth spherical plate 160. The axis of the first transmission rod 210 passes through the center of the fourth spherical plate 160. By setting the first transmission rod 210 and the second transmission rod 220 coaxially, it is ensured that the fourth spherical plate 160 and the third spherical plate 150 maintain the same center.

[0039] In one embodiment, the first power source and the second power source are both drive motors 230 .

[0040] In one of the embodiments, a pressure sensor is provided in the industrial kiln, and the pressure sensor can detect the flue gas pressure in the industrial kiln. A control board is provided in the installation cavity 111, and the control board can receive data from the pressure sensor. When the data of the pressure sensor reaches a preset value, the control board can control the drive motor 230 to start.

[0041] 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, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A deflection type high temperature exhaust valve for industrial kilns, characterized in that: include: A sealed box, wherein the sealed box has an installation cavity inside and an air inlet and an air outlet connected to the external environment are arranged on the sealed box; A valve body, the valve body is arranged at the air inlet in the installation cavity, the valve body comprises a first spherical plate and a second spherical plate, the sphere centers corresponding to the first spherical plate and the second spherical plate are the same, the inner diameter of the first spherical plate is smaller than the inner diameter of the second spherical plate, and the outer diameter of the first spherical plate is larger than the inner diameter of the second spherical plate; the edge of the first spherical plate is fixedly connected to the edge of the second spherical plate, and the area where the first spherical plate and the second spherical plate block the air inlet is provided with a through groove, and the through groove is connected to the air inlet; The valve cover includes a third spherical plate and a fourth spherical plate. The spherical centers of the third spherical plate and the fourth spherical plate are the same. The outer diameter of the third spherical plate is equal to the inner diameter of the fourth spherical plate. The outer wall of the third spherical plate can fit the inner wall of the first spherical plate. The outer wall of the fourth spherical plate can fit the inner wall of the second spherical plate. The third spherical plate and the fourth spherical plate can block the through groove. A driving source is used to drive the third spherical plate and the fourth spherical plate to rotate relative to each other.

2. A deflection type high temperature exhaust valve for industrial furnaces according to claim 1, characterized in that: The first spherical plate is one-Nth of a sphere, where N is greater than 2; the second spherical plate is one-Mth of a sphere, where M is greater than 2.

3. The deflection type high temperature exhaust valve for industrial furnaces according to claim 1, characterized in that: The third spherical plate and the fourth spherical plate are both hemispherical, wherein the third spherical plate and the fourth spherical plate both have a blocking portion and a breathable portion, the blocking portion on the third spherical plate and the fourth spherical plate can block the through groove; the breathable portion on the third spherical plate and the fourth spherical plate can be breathable after the blocking portion releases the through groove.

4. The deflection type high temperature exhaust valve for industrial furnaces according to claim 3, characterized in that: The ventilation parts of the third spherical plate and the fourth spherical plate are both provided with a plurality of ventilation holes.

5. The deflection type high temperature exhaust valve for industrial furnaces according to claim 3, characterized in that: The third spherical plate and the fourth spherical plate can form a collecting chamber when blocking the through groove.

6. The deflection type high temperature exhaust valve for industrial furnaces according to claim 1, characterized in that: The driving source includes a first driving part and a second driving part, the first driving part is used to drive the third spherical plate to rotate, and the second driving part is used to drive the fourth spherical plate to rotate.

7. A deflection type high temperature exhaust valve for industrial furnaces according to claim 6, characterized in that: The first driving part includes a first power source and a first transmission rod. The first transmission rod is fixedly connected to the outer side wall of the third spherical plate. The first power source is used to drive the first transmission rod to rotate.

8. The deflection type high temperature exhaust valve for industrial furnaces according to claim 7, characterized in that: The second driving part includes a second power source and a second transmission rod. The second transmission rod is fixedly connected to the outer side wall of the fourth spherical plate. The second power source is used to drive the second transmission rod to rotate.

9. The deflection type high temperature exhaust valve for industrial furnaces according to claim 8, characterized in that: The first transmission rod is coaxially inserted into the second transmission rod, and the first transmission rod and the second transmission rod can rotate relative to each other.

10. The deflection type high temperature exhaust valve for industrial furnaces according to claim 8, characterized in that: The first power source and the second power source are both drive motors.

Images