KR101524635B1 - Poppet Valve for Regenerative Thermal Oxidizer Using Packing for Reducing Leak And Regenerative Thermal Oxidizer Using Same - Google Patents

Abstract

Disclosed are a regenerative incinerator poppet valve using packing for reducing leakage, and a regenerative incinerator using the same. According to the present invention, a poppet valve used as an intake or exhaust valve of a bed type regenerative incinerator comprises: an air cylinder to transmit reciprocating motion of a disk as air pressure; a valve main body located in the upper part of the air cylinder to transfer an organic gas to a bed and to discharge a burned gas; a shaft connected with the air cylinder, and located in the central shaft of the valve main body to transmit the reciprocating motion of the disk; a stopper fixed while surface contacting the upper end of the valve main body, to stop the downward motion of the disk, and to support sealing packing; a disk fixed to the upper part of the shaft and reciprocating, to allow the gas to flow in and out between the valve main body and the bed in an open state, and to block the gas from flowing in and out between the valve main body and the bed in a close state; and the sealing packing fixed while surface contacting the upper end surface of the stopper, and in contact with the lower part of the disk in a close state of the disk.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a regenerative incinerator poppet valve using a leak-reducing packing and a regenerative incinerator using the regenerative incinerator and a regenerative thermal oxidizer using the same.

The present embodiment relates to a regenerative incinerator poppet valve using a leak reducing packing and a regenerative incinerator using the same.

The contents described in this section merely provide background information on the present embodiment and do not constitute the prior art.

VOCs (Volatile Organic Compounds) are hydrocarbon compounds having a vapor pressure of 0.02 psi or more among organic compounds or boiling points of less than 100 ° C. In the treatment of atmospheric substances, ozone and photochemical oxides (Precusor).

These volatile organic compounds (hereinafter referred to as "organic gases") are hazardous substances that cause harmful substances such as respiratory organs and carcinogens, as well as harmful substances such as smog formation through photochemical reaction, There is a problem of causing pollution of the atmospheric environment.

In order to remove such organic gases, incineration, adsorption, washing, and bio-treatment are used. Incineration treatment methods include a thermal oxidizer (TO), a catalytic incinerator (CTO), a catalytic thermal oxidizer ), A regenerative catalytic oxidizer (RCO), a regenerative thermal oxidizer (RTO), and the like are used.

In the case of the RTO (Regenerative Thermal Oxidizer) treatment technology, there is a disadvantage that the initial installation cost is high, but the treatment efficiency is high, the heat recovery rate is high by using the ceramic outlet, and the second pollution factor is small And is usually used.

That is, the regenerative incinerator sucks the organic gas generated in the factory and purifies it by burning (burning) it at a high combustion temperature of 760 ° C. to 850 ° C. in the combustion chamber.

In this case, since the gas to be burned (incinerated) has a high temperature of heat, the waste heat is recovered by using a regenerator filled with a ceramic material of a high-tech material. The heat recovered by using the regenerator passes through the combustion gas It is possible to increase the energy efficiency and the processing efficiency by using the regenerator layer to be subsequently used for preheating it using a device through which the volatile organic compound gas to be processed is passed.

In the case of such a regenerative incinerator, approximately half of the heat storage layer absorbs heat at a high temperature from the waste gas after the combustion treatment so as to prevent waste of unnecessary energy and to improve the efficiency of the combustion device by completely burning the harmful gas, The heat storage layer of the heat treatment unit performs the heat radiation function for preheating the noxious gas before the combustion process.

In order for the heat storage layer and the heat storage layer to be periodically replaced so that each heat storage layer periodically replaces its role and can be repeatedly performed, a device for converting the gas flow direction to be processed is required. Such a device type is classified into a bed type and a cylindrical type do.

In the bed type, an intake valve and an exhaust valve are attached to one bed, respectively. The bed type is divided into a two-bed type regenerative incinerator and a three-bed type regenerative type incinerator, and a three- A purge valve may be further included. In the case of a bed type regenerative incinerator, a poppet valve is mainly used for an intake valve, an exhaust valve and a purge valve for air inflow and outflow into a bed.

In the case of the regenerative incinerator, in the case of the conventional Korean Patent Application No. 2001-0029953 entitled " Regenerative Waste Incineration System ", 2004-0078963 "Regenerative incinerator with different numbers of entrance and exit beds ", the number of beds, the internal structure of the bed, We tried to improve the treatment efficiency of the regenerative incinerator by improving the connection relation of the valve.

However, the organic gas leaking between the opening and closing parts of the poppet valve used in the bed type regenerative incinerator is a factor that hinders the increase in the treatment efficiency of the bed type regenerative incinerator, and a solution for this problem is needed.

In this embodiment, sealing packing for minimizing gas leakage between the opening and closing parts in the bed type regenerative incinerator poppet valve is added to minimize leakage of gas between the bed and the poppet valve, thereby maximizing the efficiency of treating volatile organic compounds And a regenerative incinerator poppet valve.

According to an aspect of the present invention, there is provided a poppet valve used as an intake or exhaust valve of a bed-type regenerative incinerator, comprising: an air cylinder for pneumatically conveying a reciprocating motion of the disk; A valve body positioned above the air cylinder for delivering organic gas to the bed or for discharging the combusted gas; A shaft which is connected to the air cylinder and is located on the central axis of the valve body and transmits a reciprocating motion of the disk; A stopper fixed to the upper end of the valve body for stopping the downward movement of the disk and supporting the sealing packing; A disk that is fixed to an upper portion of the shaft and reciprocates to allow the valve body and the gas to flow in and out of the bed when the valve body is in an open state and to prevent gas flow between the valve body and the bed when the valve body is closed; And a sealing packing fixed to the upper surface of the stopper and fixed to the lower surface of the disk in a closed state of the disk.

In addition, a poppet valve used as an intake or exhaust valve of a bed-type regenerative incinerator includes: an air cylinder for pneumatically conveying a reciprocating motion of the disk; A valve body positioned above the air cylinder for delivering organic gas to the bed or for discharging the combusted gas; A shaft which is connected to the air cylinder and is located on the central axis of the valve body and transmits a reciprocating motion of the disk; A stopper fixed to the upper end of the valve body to stop the downward movement of the disc; A disk that is fixed to an upper portion of the shaft and reciprocates to allow the valve body and the gas to flow in and out of the bed when the valve body is in an open state and to prevent gas flow between the valve body and the bed when the valve body is closed; And a sealing packing fixed to the lower surface of the disk by being fixed in contact with the upper portion of the stopper when the disk is closed.

An air cylinder for pneumatically conveying the reciprocating motion of the disk; A valve body positioned above the air cylinder for delivering organic gas to the bed or for discharging the combusted gas; A shaft which is connected to the air cylinder and is located on the central axis of the valve body and transmits a reciprocating motion of the disk; A stopper fixed to the upper end of the valve body for stopping the downward movement of the disk and supporting the sealing packing; A disk that is fixed to an upper portion of the shaft and reciprocates to allow the valve body and the gas to flow in and out of the bed when the valve body is in an open state and to prevent gas flow between the valve body and the bed when the valve body is closed; And a poppet valve using a leak reducing packing including a sealing packing which is fixed to the top surface of the stopper and is in contact with the lower portion of the disk in a closed state of the disk.

According to this embodiment, a sealing packing is added between the opening and closing portions of the bed type regenerative incinerator poppet valve to minimize gas leakage, thereby minimizing the leakage of gas between the bed and the poppet valve, thereby maximizing the efficiency of treating volatile organic compounds And the packing serves as a damper for relieving the impact between the opening and closing portions of the poppet valve.

1 is an overall side view of a regenerative incinerator system.
2 (a) is a view showing a first step of a flow chart of a two-bed type regenerative incinerator.
FIG. 2 (b) is a view showing the second step of the flow chart of the two-bed type regenerative incinerator.
FIG. 3 (a) is a view showing the first step of the flow chart of the three-bed type regenerative incinerator.
FIG. 3 (b) is a view showing the second step of the flow chart of the 3-bed type regenerative incinerator.
3 (c) is a view showing the third step of the flow chart of the 3-bed type regenerative incinerator.
4 (a) is a detailed view of an open state regenerative incinerator poppet valve according to an embodiment of the present invention.
4 (b) is a detailed view of a closed regenerative incinerator poppet valve according to an embodiment of the present invention.
5 (a) is a detailed view of a regenerative incinerator poppet valve in an open state according to another embodiment of the present invention.
FIG. 5 (b) is a detailed view of a closed regenerative incinerator poppet valve according to another embodiment of the present invention.
6 is a plan view of a sealing packing used in a regenerative incinerator poppet valve according to an embodiment of the present invention.
FIG. 7 is an internal cross-sectional view of the sealing packing of FIG. 6 cut to A side.

Hereinafter, some embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that, in the drawings, like reference numerals are used to denote like elements in the drawings, even if they are shown in different drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present disclosure rather unclear.

In describing the constituent elements of this embodiment, first, second, i), ii), a), b) and the like can be used. Such a code is intended to distinguish the constituent element from other constituent elements, and the nature of the constituent element, the order or the order of the constituent element is not limited by the code. It is also to be understood that when an element is referred to as being "comprising" or "comprising", it should be understood that it does not exclude other elements unless explicitly stated to the contrary, do.

Hereinafter, a regenerative incinerator poppet valve using a leak reducing packing according to an embodiment of the present invention and a regenerative incinerator using the same will be described with reference to the accompanying drawings.

1 is an overall side view of a regenerative incinerator system in accordance with an embodiment of the present invention.

Referring to FIG. 1, the structure of the regenerative incinerator will be briefly described as follows. An inlet 110 for introducing volatile organic compounds generated in a production equipment factory or a production facility, a gas exhausted from the bed through the bed, A bed 140 which is composed of a ceramic layer and preheats the pre-combustion gas or regenerates the ceramic layer from the post-combustion gas, an incinerator 150 which oxidizes the organic gas introduced through the bed, And an exhaust port 120 for exhausting the exhaust gas.

The basic principle of the regenerative incineration is to recover the waste heat of the exhaust gas to the maximum and use it for the preheating of the intake gas. In order to maximize the recovery of the waste heat, a ceramics having a large surface area is used as a heating medium without using a heat exchanger.

Compared with general heat exchangers, ceramics as a heat exchange medium has a very high operating temperature of up to 1300 ° C, a temperature difference between inlet and outlet can be lowered to 40 ° C, and heat recovery efficiency reaches 95%.

2 is a view showing a flow of a two-bed type regenerative thermal incinerator according to another embodiment of the present invention.

When the intake valve 210 of the A bed 230 and the exhaust valve 220 of the B bed 240 are opened as shown in FIG. 2 (a), the temperature of the upper portion of the A bed 230 in the incinerator Is heated to the operating temperature of the incinerator 150, and then the gas is introduced in the A- > B direction before the treatment.

The gas temperature passes through the A-bed 230 and is pre-heated to the temperature of the incinerator 150. The organic gas contained in the gas starts to be oxidized and passes through the upper incinerator 150 having an appropriate residence time, .

The treated high temperature gas passes through the B bed 240 and the heat of the gas is almost entirely transferred to the B bed 240 so that the gas is cooled and discharged to the exhaust port 120 through the exhaust valve 220, (240) receives heat from the high temperature gas and accumulates heat, and this heat quantity is used for preheating the suction gas in the next operation cycle.

At this time, the temperature difference between the outlet and the inlet can be controlled as low as 40 ° C. After a certain time has elapsed, the A-bed 230 is cooled by the preheating of the suction gas. When the B-bed 240 is heated by the exhaust gas, Change the flow to B-> A.

When the intake valve 210 of the B bed 240 and the exhaust valve 220 of the A bed 230 are opened as shown in FIG. 2 (b), the gas is supplied in the B-> A direction. The organic gas is preheated to the temperature of the incinerator 150 while passing through the already-heated B bed, and the organic gas contained in the gas starts to be oxidized and passes through the upper incinerator 150 having an appropriate residence time, .

 The treated high-temperature gas passes through the A-bed 230, and almost all the heat of the gas is transferred to the A-bed 230, and the gas is cooled and discharged to the exhaust port 120 through the exhaust valve 220, (230) receives heat from the high temperature gas and accumulates heat, and this heat quantity is used for preheating the suction gas in the next operation cycle.

The B bed 240 is cooled by the preheating of the suction gas, and when the A bed 230 is heated by the exhaust gas, the gas inflow passage is changed to A- > B. The two-bed type regenerative incinerator repeats the above cycle to efficiently treat volatile organic compounds.

The two-bed type regenerative incinerator is economical due to low installation and operating costs, but the untreated organic gas existing in the bed layer is discharged to the outside at the time of switching, so that the total organic matter removal efficiency tends to be relatively low (About 95%). Therefore, when the exhaust gas is discharged at a time and the concentration of the exhaust gas is high, the average discharge concentration becomes high, so that the use of a three-bed type regenerative burner having relatively high treatment efficiency can be considered.

FIG. 3 is a view showing a flow of a three-bed type regenerative incinerator according to an embodiment of the present invention, and assumes the same apparatus as the regenerative incinerator of FIG.

The process of the 3-bed type regenerative incinerator is performed by switching operation in which the inflow and outflow channels are changed at predetermined time intervals (1 minute to 3 minutes) by the cooling operation, the purging operation, and the heating operation. The cycle of the step is repeated.

In the cooling step, the organic gas is introduced into the bed, the organic gas is preheated, and the bed is cooled. In the purging step, the untreated organic gas existing in the bed after the cooling step is raised by an incinerator by fresh air. In the heating step, the high-temperature gas passed through the incinerator is discharged to the bed to cool the gas and to store the bed.

3 (a) shows the case where the gas inflow passage is A- > B and the intake valve 210 of the A-bed 320 and the exhaust valve 220 of the B-bed 330, The organic gas flows into the intake valve 210 of the A-bed 320 and is discharged to the exhaust valve 220 of the B-bed 330 via the incinerator 150.

At this time, the C bed 340 opens the purge valve 310 to purge the fresh air C bed 340. When the B bed 330 is heated by the exhaust gas after a predetermined time has elapsed, Change to B-> C.

3B is a sectional view of the intake valve 210 of the B bed 330 and the exhaust valve 220 of the C bed 340 as shown in FIG. The organic gas flows into the intake valve 210 of the B bed 330 and is discharged to the exhaust valve 220 of the C bed 340 through the incinerator 150. [

At this time, when the purge valve 310 is opened to purge the fresh air A-bed 320 and the C-bed 340 is heated by the exhaust gas after a certain time, the A- A.

3C shows a case where the gas inflow path is C- > A, and the intake valve 210 of the C bed 340 and the exhaust valve 220 of the A bed 320, as shown in Fig. 3 (c) The organic gas flows into the intake valve 210 of the C bed 340 and is discharged to the exhaust valve 220 of the A bed 320 through the incinerator 150.

At this time, the B-bed 330 opens the purge valve 310 to purge the fresh air B-bed 330, and when the A-bed 320 is heated by the exhaust gas after a certain period of time, B is changed.

Since each cycle is repeated, each bed is operated by repeating the cooling step, the purging step and the heating step. In the cooling step, unburned gas which can be refluxed during gas switching is purged to the upper part of the bed using fresh air, The efficiency of organic gas treatment in the 3-bed type regenerative incinerator is more than 98%.

The 3-bed type regenerative incinerator is a system that can prevent instantaneous untreated organic gas from discharging during valve switching, which is a disadvantage of a two-bed type regenerative incinerator. It is a purge cycle in which each ceramic bed is cooled and heated In addition, the treatment efficiency is relatively higher than that of the two-bed type regenerative incinerator because the untreated organic gas discharged during switching is prevented from flowing out to the atmosphere.

In the case of the above-mentioned bed type regenerative incinerator, a poppet valve is mainly used for a suction valve, an exhaust valve and a purge valve for air inflow and outflow into the bed.

4 is a detailed view of a regenerative incinerator poppet valve according to an embodiment of the present invention.

As shown in FIG. 4, the poppet valve 400 according to the present embodiment includes an air cylinder 410 at a lower portion thereof. Although the air cylinder 410 according to the present embodiment has a cylindrical shape, it may have a different shape and serves to cause reciprocating motion of the disk 450 to be described below with air pressure. The upper portion of the air cylinder 410 is connected to the lower portion of the valve body 420.

The valve body 420 is positioned on the upper portion of the air cylinder 410 and the upper outer portion of the air cylinder 410 is connected and fixed to the lower portion of the valve body 420. The connecting portion is formed so as to prevent the gas Seal with a fixing nail or the like.

The shape of the valve body 420 according to the present embodiment is a cylindrical shape and a cylindrical shape having a diameter twice larger than that of the air cylinder 410. Alternatively, the valve body 420 may have a rectangular shape or the like. The inside of the valve body 420 is an empty space except for the shaft 430 which will be described later, which is located at the center shaft portion.

Since the valve body 420 serves as a switching valve body for transferring the volatile organic compounds to the regenerative incinerator and discharging the volatile organic compounds after the combustion, the organic gas, which has entered the valve body 420 through the inlet port in the case of the intake valve, In the case of the exhaust valve, the exhaust gas is exhausted to the valve body 420 through the bed 460 by being burned in the incinerator.

In the upper portion of the valve body 420, only the upper edge portion has a shape and the other portion is opened for gas inflow and outflow. The edge portion of the upper portion of the valve body 420 according to the present embodiment is bent in a 'C' shape in the outer direction of the upper portion of the valve body 420 to engage with the stopper 440 to be described below. However, if the stopper 440 is structured to be able to engage with the valve body, other configurations may be used.

The shaft 430 is connected from the air cylinder 410 to a cylinder-shaped long axis located on the inner central axis of the valve body 420. The shaft 430 serves to transmit the air pressure generated in the air cylinder 410 to the disk.

The stopper 440 is fixed to the upper surface of the valve body 420 in an interview. However, the connecting portion between the stopper 440 and the valve body 420 is completely sealed so that the gas does not leak out. do.

The stopper 440 is in the form of a flat ring extending along the upper surface of the valve body 420 and the stopper 440 serves to support the sealing packing 510 to be described below.

The disk 450 is fixed to the upper end of the shaft 430 and has a disk shape enough to cover the sealing packing 470 to be described below. Such a shape is one example according to the embodiment of the present invention, so that it may vary depending on the shape of the valve body 420 and the stopper 440 when the sealing packing 470 can be covered.

The disc 450 reciprocates up and down on the stopper 440 and the disc 450 serves to seal the poppet valve for transporting the organic gas to the regenerative incinerator and discharging it after the combustion.

When the disk 450 is in an open state, the lower end of the disk 450 is separated from the upper portion of the sealing packing 470 to be described below, so that gas can move between the valve body 420 and the bed 460 In the case of the intake valve, the organic gas escapes from the valve body 420 to the bed 460, and in the case of the exhaust valve, the combusted gas escapes from the bed 460 to the valve body 420.

When the disk 450 is in a closed state, a part of the bottom surface of the disk 450 contacts the upper end of the sealing packing 510 to prevent gas from flowing between the valve body 420 and the bed 460.

The seal packing 470 is in contact with the upper surface of the stopper 440 so that the gasket is sealed so that the gasket does not leak out, Shape.

The sealing packing 470 is made of a silicone rubber material, and generally has a constant shape. However, when an external force is applied, a part of the force is deformed. When the external force is removed, the sealing packing 470 returns to its original shape.

Therefore, when the downward movement of the disk 450 is stopped by the stopper, the sealing packing 470 absorbs the shock to relieve the impact of the disk 450, and when the disk 450 is in the closed state, 470 can be hermetically sealed.

The sealing packing 470 is not used in the incinerator (operated at 800 ° C to 850 ° C), and the inlet valve and the inlet valve are not used in the case of the silicone rubber material, even though the sealing packing 470 is made of silicone rubber. Used in exhaust valves.

In the intake valve, the gas flows into the temperature range of 30 ° C to 50 ° C. In the exhaust valve, since the gas is discharged to a temperature of 80 ° C to 100 ° C, which is higher than the inlet temperature by 50 ° C or so, the sealing packing 470 can appropriately respond to the temperature. There is no problem of deformation.

5 is a detailed view of a regenerative incinerator poppet valve according to another embodiment of the present invention.

5, the configuration is the same as that of the poppet valve shown in Fig. 5 except that the air cylinder 410, the valve body 420, the shaft 430, the stopper 440, the disk 450, Sealing packings 470. [0060]

The seal packing 470 is fixed at the lower end of the disc 450 rather than at the upper end of the stopper 440. However, When the disk 450 is in the closed state, the gap between the sealing packing 470 and the stopper 440 is reduced when the downward movement of the disk 450 is stopped by the stopper, So as to prevent gas leakage.

6 is a plan view of a sealing packing used in a regenerative incinerator poppet valve according to an embodiment of the present invention. FIG. 7 is an internal cross-sectional view of the sealing packing of FIG. 6 cut to A side.

6, the sealing packing 470 has a circular ring shape having the same radius. However, since the sealing packing 470 is only one embodiment of the present invention, the sealing packing 470 may be deformed into a different shape depending on the shape of the stopper 440 and the disk 450. [ .

The seal packing 470 must be covered between the stopper 440 and the disk 450 by the disk 450 and the stopper 440 so as to seal the disk 450 and prevent gas leakage. It is preferable to be provided adjacent to the inner end of the stopper 440 as shown in Figs. 4 and 5, preferably in a region larger than the radius and smaller than the outer radius.

7, the cross-section of the sealing packing 470 is roughly divided into an upper portion 720 and a lower portion 710. The lower portion 710 has a rectangular shape, and the upper portion 720 has a diameter As shown in FIG. And an inner circular cushion 750 which is circular at the center where the upper and lower portions meet and forms an empty space.

The inner circular cushion 750 facilitates the deformation of the shape when the disk 450 contacts the sealing packing 470 with a circular hole located inside the sealing packing 440 to maximize the buffering function, ) And the sealing packing (470) to minimize gas leakage.

The upper contact portion 740 is brought into contact with the lower end surface of the disc 450 in the embodiment as shown in FIG. 4 when the disc is closed to the upper end of the semicircular shape of the sealing packing upper portion 720, 450) to minimize the leakage of the organic compound by making the contact portion of the sealing packing (470) uniform.

If the size of the inner circular cushion 750 is too large, the possibility of the sealing packing 470 being damaged is large, and if the inner circular cushion 750 is too small, the degree of the pressing is small and the sealing effect is reduced. r is set to be 1/4 to 1/6 the size of the radius R of the semi-shaped portion of the upper portion 720, and particularly about one-fifth of the radius.

The size of the radius R of the semicircular shape of the upper portion 720 and the magnitude of the radius r of the inner circular cushion 750 are determined by the air pressure of the air cylinder 410 and the air pressure of the disk 450 when the disk 450 presses the sealing packing 470 It is decided in consideration of the degree of force.

For example, when the air cylinder operates at an air pressure of 4 to 5 Kgf / cm 2, the size of the semi-circular surface radius R of the upper portion 720 is 8 mm because the degree to which the disk 450 presses the sealing packing 470 is about 8 mm. , And the radius (r) of the inner circular cushion 750 is preferably 1.6 mm.

However, since this is only one example, if the air pressure of the air cylinder is changed, the radius R of the semicircular shape of the upper portion 720 and the radius r of the inner circular cushion 750 may vary.

The construction of the sealing packing 510 consists of an upper contact portion 740, an inner circular cushion 750 and a lower contact portion 730. The lower contact portion 730 is a lower end surface of the lower portion of the sealing packing 470. In the embodiment as shown in FIG. 4, the lower contact portion 730 is in contact with the upper end surface of the stopper 440, The lower contact portion 730 is brought into contact with the lower end surface of the disk 450. FIG.

5, the upper contact portion 740 is brought into contact with the upper end surface of the stopper 440, and when the upper contact portion 740 contacts the upper end surface of the stopper 440, the contacting portions of the sealing packing 470 are uniform, To minimize leakage.

The above-described poppet valve of the present embodiment is preferably used in a two-bed type regenerative incinerator as shown in FIG. 2 or a three-bed regenerative type incinerator as shown in FIG.

When used in a three-bed type regenerative incinerator, it is used as a plurality of intake or exhaust valves for gas inflow and outflow to the A-bed 320, the B-bed 330 and the C-bed 340, it is possible to greatly improve the efficiency and performance of the entire regenerative type incinerator as a whole.

The present invention is not intended to limit the scope of the present invention but to limit the scope of the present invention. The scope of protection of the present invention should be construed according to the claims, and all technical ideas considered to be equivalent or equivalent thereto should be construed as being included in the scope of the present invention.

110: inlet port 120: exhaust port
130: valve 140: bed
150: incinerator 210: intake valve
220: exhaust valve 310: purge valve
410: air cylinder 420: valve body
430: shaft 440: stopper
450: Disk 470: Sealing packing
730: stopper contact portion 740: disk contact portion
750: Inner round cushion

Claims (16)

delete delete In a poppet valve used as an intake or exhaust valve of a bed-type regenerative incinerator,
An air cylinder for pneumatically conveying the reciprocating motion of the disk;
A valve body positioned above the air cylinder for delivering organic gas to the bed or for discharging the combusted gas;
A shaft which is connected to the air cylinder and is located on the central axis of the valve body and transmits a reciprocating motion of the disk;
A stopper fixed to the upper end of the valve body for stopping the downward movement of the disk and supporting the sealing packing;
A disk that is fixed to an upper portion of the shaft and reciprocates to allow the valve body and the gas to flow in and out of the bed when the valve body is in an open state and to prevent gas flow between the valve body and the bed when the valve body is closed;
And a seal packing which is fixed in contact with the upper surface of the stopper and is in contact with the lower portion of the disk in the closed state of the disk,
≪ / RTI >
Wherein the upper end of the sealing packing is in the form of a semicircle having the diameter of the lower upper end surface of the rectangle, and the inner end surface of the sealing packing is composed of an upper portion and a lower portion,
Further comprising an inner circular cushion on the inner end surface of the sealing packing, wherein the inner circular cushion is located at the center where the upper portion and the lower portion meet, and the inner circular cushion is a hollow space with a circular hole
The incandescent incinerator poppet valve uses leak-proof packing. The method of claim 3,
Wherein the inner circular cushion has a radius equal to one-fourth to one-sixth the radius of the upper half circle. 5. The method according to any one of claims 3 to 4,
Wherein the sealing packing is made of a silicone rubber material. delete delete In a poppet valve used as an intake or exhaust valve of a bed-type regenerative incinerator,
An air cylinder for pneumatically conveying the reciprocating motion of the disk;
A valve body positioned above the air cylinder for delivering organic gas to the bed or for discharging the combusted gas;
A shaft which is connected to the air cylinder and is located on the central axis of the valve body and transmits a reciprocating motion of the disk;
A stopper fixed to the upper end of the valve body to stop the downward movement of the disc;
A disk that is fixed to an upper portion of the shaft and reciprocates to allow the valve body and the gas to flow in and out of the bed when the valve body is in an open state and to prevent gas flow between the valve body and the bed when the valve body is closed;
And a sealing packing fixed to the bottom surface of the disk and fixed to the top of the stopper in a closed state of the disk,
Wherein the upper end of the sealing packing is in the form of a semicircle having the diameter of the lower upper end surface of the rectangle, and the inner end surface of the sealing packing is composed of an upper portion and a lower portion,
Further comprising an inner circular cushion on the inner end surface of the sealing packing, wherein the inner circular cushion is located at the center where the upper portion and the lower portion meet, and the inner circular cushion is a hollow space with a circular hole
The incandescent incinerator poppet valve uses leak-proof packing. 9. The method of claim 8,
Wherein the inner circular cushion has a radius equal to one-fourth to one-sixth the radius of the upper half circle. 10. A method according to any one of claims 8 to 9,
Wherein the sealing packing is made of a silicone rubber material. delete delete delete delete An air cylinder for pneumatically conveying the reciprocating motion of the disk;
A valve body positioned above the air cylinder for delivering organic gas to the bed or for discharging the combusted gas;
A shaft which is connected to the air cylinder and is located on the central axis of the valve body and transmits a reciprocating motion of the disk;
A stopper fixed to the upper end of the valve body for stopping the downward movement of the disk and supporting the sealing packing;
A disk that is fixed to an upper portion of the shaft and reciprocates to allow the valve body and the gas to flow in and out of the bed when the valve body is in an open state and to prevent gas flow between the valve body and the bed when the valve body is closed;
And a seal packing which is fixed in contact with the upper surface of the stopper and is in contact with the lower portion of the disk in the closed state of the disk,
≪ / RTI >
Wherein the upper end of the sealing packing has a semicircular shape with the lower end top surface having a diameter and the inner circular cushion is formed at the center where the upper end and the lower end meet,
Wherein the burner comprises a burner. 16. The method of claim 15,
Wherein a size of the radius of the inner circular cushion is one fourth to one sixth of the radius of the upper semicircle.

Images