KR20170058808A - Damper having perpendicular system blade for high pressure and high temperature - Google Patents

Damper having perpendicular system blade for high pressure and high temperature Download PDF

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Publication number
KR20170058808A
KR20170058808A KR1020150162888A KR20150162888A KR20170058808A KR 20170058808 A KR20170058808 A KR 20170058808A KR 1020150162888 A KR1020150162888 A KR 1020150162888A KR 20150162888 A KR20150162888 A KR 20150162888A KR 20170058808 A KR20170058808 A KR 20170058808A
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South Korea
Prior art keywords
shaft
fluid
damper
vertical
rotary shaft
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KR1020150162888A
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Korean (ko)
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박형도
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주식회사 진흥기공
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Priority to KR1020150162888A priority Critical patent/KR20170058808A/en
Publication of KR20170058808A publication Critical patent/KR20170058808A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/15—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre with parallel simultaneously tiltable lamellae

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lift Valve (AREA)

Abstract

The present invention relates to a damper device having vertical blades for high temperature and high pressure.
The damper M includes a damper M installed in a duct for transferring a fluid to regulate the flow rate of the fluid or block the flow of the fluid, Reinforcing partition frame (2), and the vertical braids (3) are vertically arranged between the plurality of support reinforcing partition frames (2). The frame bracket frame (1) , And the vertical braids (3) are arranged in pairs so as to form an even number,
Wherein the braid has rotating shafts (4) and (5) at the upper and lower ends thereof and a sealing cap (6) at the lower shaft (5), wherein the sealing cap (6) And the upper shaft (4) is provided with a link system (L) for opening and closing the braid, and the upper shaft (4) is provided with a vertical blade for high temperature and high pressure .
As described above, the present invention is applicable to a vertical blade that is installed in a duct for transferring a fluid such as a high temperature and a high pressure in a power plant or an exhaust gas or the like to control or block the flow rate of a fluid It is possible to normally open and close quickly and to exhibit a high sealing force and to maintain high durability for a long time even if the expansion and contraction due to thermal deformation occurs.

Figure P1020150162888

Description

[0001] The present invention relates to a damper having perpendicular blades for high temperature and high pressure,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a damper device having vertical blades for high temperature and high pressure and more particularly to a damper device for high temperature and high pressure, It is a damper device with a vertical braid to regulate or shut off the flow rate of fluid, especially when regulating and shutting off high temperature and high pressure disposal or exhaust gas flow. The present invention relates to a damper device having vertical blades for high temperature and high pressure capable of exhibiting functions.

Background Art [0002] Conventionally, a duct having a large flow rate for transferring a fluid such as waste heat gas in a power plant or the like is provided with a blade to control the transfer of fluid.

However, the braids to be installed in the duct were arranged horizontally by the shaft on both sides.

That is, as in the case of the registration No. 10-1279895 filed by the applicant of the Korean Intellectual Property Office (the name of the double-blade sealing device of the damper used in the fluid transfer duct), the braid is installed horizontally by both shafts Even if expansion or contraction due to thermal deformation occurs due to disposal of high temperature and high pressure or exhaust gas, an seal cap having a resilient spring is provided at the tip of the shaft to provide a clearance function to the rotary shaft, It is possible to prevent damage to the bearings and links that are built in the apparatus, and to exhibit normal functions and performance.

However, such a horizontal braid could not provide a faster and more hermetic barrier to the disposal or exhaust gas flow.

In other words, the horizontal type braiding method is to shut off the exhaust gas or the exhaust gas flow in the damper by each single braid, so that the opening and closing speed is slow and the sealing force is also inferior. In particular, since the rotating shaft supports the braid horizontally, This shaft has a problem in that it is not durable when it is used for a long period of time and it is required to stop all discharging operation of waste or exhaust gas and to repair replacement.

If the damper having the horizontal blade is installed according to the structure of the doctor installed due to the nature of the site of the power plant, the performance and the function are significantly deteriorated.

One. Korean Registered Patent Publication No. 10-1279895 (Bulletin of Jun. 28, 2013).

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a high-temperature and high- And a damper device having a vertical type blade that regulates or blocks the flow rate of a fluid, thereby providing a high-temperature and high-pressure vertical type blade capable of exhibiting a smooth damper function with quick opening / And a damper device.

A damper installed in a duct for transferring a fluid to adjust a flow rate of the fluid or block the flow of the fluid;

The damper constructs a frame frame body in a lateral direction longer than the longitudinal direction, and the frame frame body constitutes a plurality of support reinforcing partition frames at necessary intervals,

A vertical braid is vertically installed between the plurality of supporting reinforcing partition frame frames so as to be openable and closable,

The vertical type braids may be composed of an even number such as a pair or a pair of tails or an odd number of one or three,

Wherein each of the braids has a rotary shaft at the upper and lower ends thereof, and a sealing cap at the lower shaft,

Wherein the sealing cap is formed by fastening a housing on a support plate by fastening bolts and nuts, and a center shaft and a spring holder are installed at the center of the support plate, and a tension spring is inserted into the center shaft and the spring holder, Is supported by the elastic force at the lower end,

Wherein the upper shaft is coupled to a rotating shaft by a connecting pin, the upper shaft and the rotating shaft are formed in a housing, the upper shaft is coupled to a stuffing box, and the rotating shaft is supported and supported by a bearing and a bearing cover formed on the housing, A link arm is attached to the upper end.

And means for opening and closing said pair of braids is constituted by a single link system and means for opening and closing two pairs of braids is constituted by a pair of link systems,

The single link system includes a linkage connected by a rod end bearing between each link arm coupled to a rotation shaft of the pair of upper shafts forming a pair, And an actuator device for rotating it in the normal and reverse directions.

The pair of link systems are connected to each other by a rod end bearing between link arms of neighboring rotational axes of adjacent rotational axes on the basis of the outermost rotational axes of the two pairs of rotational axes, And another linkage is connected between the inner link arms by a rod-and-bearing mechanism, and an actuator unit that rotates the rotary shaft in the left and right directions is coupled to the rotary shaft of the one side.

As described above, the present invention is applicable to a vertical blade that is installed in a duct for transferring a fluid such as a high temperature and a high pressure in a power plant or an exhaust gas or the like to regulate or block the flow rate of a fluid, It is possible to normally open and close quickly and to exhibit a high sealing force and to maintain high durability for a long time even if the expansion and contraction due to thermal deformation occurs.

That is, by constructing the blades in the vertical direction, a pair or two pairs can be opened and closed at the same time as they are rotated and closed at the same time, and the structure that supports the shaft rotating in the vertical direction on the upper and lower sides of the braid, Even if a high load is applied, fatigue strength is not applied to the shaft, so that warpage does not occur and durability is maintained for a long time.

In addition, due to the nature of the site of the power plant, it can be installed in a resilient manner in accordance with the structure of the installed doctor, and an excellent damper function can be maintained.

1 is a schematic view of an example in which a damper according to the present invention is installed in a duct.
Fig. 2 is a whole block diagram of a damper device in a damper device having a vertical blade for high temperature and high pressure according to the present invention.
3 is a plan view of FIG. 2 according to the present invention.
4 is a cross-sectional view taken along line AA of Fig. 2 according to the present invention.
Fig. 5 is an enlarged partial view of Fig. 2 according to the present invention.
Figure 6 is a front view of a single link system as a partial excerpt of Figure 5 according to the present invention.
Figure 7 is a front view of a pair of link systems as a partial excerpt of Figure 5 according to the present invention.
Fig. 8 is a plan view of Fig. 5 according to the present invention.
Fig. 9 is a sectional view taken along the line B'-B 'in Fig. 2 and Fig.
10 is a sectional view taken along the line B-B 'in FIG. 2 and FIG. 5;
11 is an enlarged sectional view of the portion "H" in Figs. 2 and 5. Fig.
12 is an enlarged cross-sectional view of the portion "G" in Figs. 2 and 5. Fig.
FIG. 13 is a partially enlarged view of FIG. 4; FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The terms defined in describing the present invention are defined in consideration of functions and forms in the present invention, and should not be construed as limiting the technical elements of the present invention.

While the present invention has been described in connection with certain embodiments, it is obvious that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the relevant art and are not to be construed as ideal or overly formal in meaning unless expressly defined in the present application .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, an embodiment of the present invention will be described with reference to Figs. 1 to 13. Fig.

A damper M mounted on a duct D for transferring a fluid and adjusting a flow rate of the fluid or blocking the flow of the fluid; and a damper M, which is installed in the frame body 1 And the frame frame 1 constitutes a plurality of supporting reinforcing partition frames 2 at necessary intervals.

The vertical braids (3) are vertically installed between the plurality of support reinforcing partition frames (2) so as to be openable and closable. The vertical braids (3) are composed of an even number of pairs, And may be an odd number such as one or three.

However, it is preferable that the vertical braids 3 are formed of an even number such as a pair or a pair of pairs.

The rotary shafts 4 and 5 are respectively installed at the upper and lower ends of the braids 3 and the sealing cap 6 is provided at the lower shaft 5, The housing 8 is fastened to the support plate 7 by a fastening bolt 9 and a nut 10. A center shaft 11 and a spring holder 12 are installed at the center of the support plate 7 A tension spring 13 is inserted into the center shaft 11 and the spring holder 12 so that the lower shaft 5 is supported at the lower end by elastic force.

The upper shaft 4 is coupled to a rotary shaft 15 by a connecting pin 14 and the upper shaft 4 and the rotary shaft 15 are formed in a housing 16, and the upper shaft 4 is connected to a stuffing box The rotary shaft 15 is supported and supported by a bearing 18 and a bearing cover 19 formed on the housing 16 and a link arm 20) are installed.

And the means for opening and closing the braid is made by a link system L, the means for opening and closing the pair of braids is constituted by a single link system L1 and the means for opening and closing the two pairs of braids And is constituted by a pair of link systems L2.

The single link system L1 is connected to each link arm 20 connected to the rotary shaft 15 of the upper shaft 4 as a pair by a rod end bearing 21, Linkage 22 and an actuator 23 for rotating the rotary shaft 15 in the left and right direction is connected to the rotary shaft 21 on one side.

The pair of link systems L2 are provided between the link arms 20 of the pair of upper rotary shafts 15 adjacent to each other on the basis of the two outer rotary shafts adjacent to each other, A linkage 22a is connected by a link 21 and another linkage 22b is connected between the inner link arms 20 by a rod and bearing 21, And an actuator device 23a which rotates in the forward and reverse directions.

The present invention constructed as described above explains an operation of opening and closing a pair of braids first.

It is possible to control the flow of the fluid passing through the duct D by opening and closing a pair of braids 3 vertically installed by the operation of the link system L by driving the actuator device 23, Block the flow.

That is, the actuator device 23 is driven to rotate the link arm 20 on one side and simultaneously rotate the one rotary shaft 15 and the upper shaft 4, and the linkage 22 is operated, The arm 20, the rotary shaft 15 and the upper shaft 4 are simultaneously rotated to rotate and open the pair of braids 3.

In order to explain the operation of opening and closing the two pairs of blades, first, the actuator 23a is driven.

One of the link arms 20 on the inner side is rotated by the driving of the actuator device 23a and the two linkages 22a and the other linkage 22b are operated at the same time, The flow of fluid passing through the duct D is controlled or the flow of the fluid is shut off by rotating the pair of braids 3 by rotating each of the rotary shafts 15 and the upper shaft 4 installed in the ducts 20 .

As described above, the present invention is installed in a duct for transferring a fluid such as a high-temperature and high-pressure waste in a power plant or an exhaust gas to regulate or shut off the flow rate of a fluid, Expansion due to thermal deformation occurs due to high pressure disposal or exhaust gas.

In this case, the shafts 4 and 5 formed on the upper side and the lower side of the braid 3 also expand due to thermal deformation. The braid 3 is vertically installed, and the lower shaft 5 has a tension spring The upper and lower shafts 4 and 5 which are supported by the lower shaft 13 supported by the lower shaft 13 push the tension springs 13 downward while compressing the tension springs 13 so that the lower shaft 5 has a clearance function .

Therefore, even if the braid 3 undergoes expansion and contraction due to thermal deformation, the sealing force can be maintained and the bearing 18, the stuffing box 17, and the link system L, which are installed in the upper shaft 4, And can exhibit normal function and performance.

By constructing the braid 3 constituting the damper M of the present invention in the vertical direction, it is possible to cut off the flow of the exhaust gas or exhaust gas quickly and with a more hermetic force.

In other words, by constructing the braid 3 in the vertical direction, a pair or two pairs can be opened and closed at the same time as they are rotated and closed at the same time, and a structure Subsequently, even when a high load is applied to the lower side, fatigue strength is not applied to the shaft, so that warpage does not occur and durability is maintained for a long period of time.

In addition, due to the nature of the site of the power plant, it can be installed flexibly in accordance with the structure of the installed doctor and can maintain excellent damper function.

The housing 8 safely protects the tension spring 13 and the lower shaft 5 from foreign matter and the tension spring 13 prevents the upper shaft 4 from being damaged even if the blade 3 expands and contracts due to thermal deformation, And the upper shaft 4 and the lower shaft 5 so as to have a normal rotation function of the upper and lower shafts 4 and 5 so as to have a normal opening and closing function by the blade 3, The bearing 18, the stuffing box 17, the link system L, and the like are prevented from being damaged.

The center shaft 11 holds the center of the tension spring 13 and the spring holder 12 prevents the tension spring 13 from flowing and stably supports the lower shaft 5.

The stuffing box 17 installed in the upper shaft 4 is filled with lubricating oil so that the shaft can rotate smoothly.

As described above, the present invention can be applied to a high-temperature and high-pressure disposal of a power plant or the like, or to a vertical duct which is installed in a duct for transferring a fluid such as an exhaust gas or the like to regulate or block the flow rate of a fluid By forming a damper device having a braid, even if the expansion and contraction due to thermal deformation occurs, it is possible to normally open and close quickly, to exhibit a high sealing force, and to maintain high durability for a long period of time.

D: Duct M: Damper
1: frame frame body 2: supporting reinforcing partition frame
3: Braid 4: Upper shaft
5: lower shaft 6: sealing cap
7: Support plate 8: Housing
9: bolt 10: nut
11: center shaft 12: spring holder
13: tension spring 14: connecting pin
15: rotation shaft 16: housing
17: stuffing box 18: bearing
19: bearing cover 20: link arm
21: rod and bearing 22a, 22b: linkage
23, 23a: Actuator device L: Link system
L1: single link system L2: one pair of link systems

Claims (4)

A damper M installed in a duct for conveying the fluid to adjust the flow rate of the fluid or block the flow of the fluid,
The damper M constitutes a frame body 1 longer in the transverse direction than the longitudinal direction and the frame frame body 1 constitutes a plurality of support reinforcing partition frame 2 at necessary intervals,
A vertical braid (3) is vertically installed between the plurality of supporting reinforcing partition frames (2) so as to be capable of opening and closing,
The vertical braids 3 are arranged in pairs so as to form an even number,
The braid has rotating shafts (4) and (5) at upper and lower ends, respectively, and a sealing cap (6) at the lower shaft (5)
A tension spring (13) is inserted into the sealing cap (6) to support the lower shaft (5) at a lower end by elastic force,
And the upper shaft (4) has a vertical blade for high temperature and high pressure including a link system (L) for opening and closing the blade. The sealing cap according to claim 1, wherein the sealing cap (6) is formed by fastening a housing (8) on a support plate (7) by fastening bolts and nuts, and a center shaft (11) And a tension spring 13 is inserted into the center shaft 11 and the spring holder 8,
The upper shaft 4 is coupled to the rotary shaft 15 by a connecting pin and the upper shaft 4 and the rotary shaft 15 are formed in the housing 16, and the upper shaft 4 is coupled to the stuffing box 17 The rotary shaft 15 is supported and supported by a bearing 18 and a bearing cover 19 formed on the housing and a link arm 20 is coupled to the upper end of the rotary shaft 15. A damper device having a vertical braid for high temperature and high pressure. The link system according to claim 1, characterized in that the link system (L) is a single link system (L1) between each link arm which is coupled to the rotational axis (15) of the upper shaft, And an actuator device (23) for connecting the linkage to the rotary shaft and rotating the rotary shaft in the left and right direction is coupled to the rotary shaft of the one side of the damper device having the vertical blade for high temperature and high pressure. The link system according to claim 1, characterized in that the link system (L) is a pair of link systems (L2) which are connected to the link arms of the two adjacent pairs of rotation axes, A linkage 22a is connected by a rod end bearing, and another linkage 22b is connected between the inner link arms by a rod-and-bearing, and an actuator for rotating the rotary shaft in the left and right direction Wherein the damper device has a vertical blade for high temperature and high pressure combined with an actuator device (23a).
KR1020150162888A 2015-11-19 2015-11-19 Damper having perpendicular system blade for high pressure and high temperature KR20170058808A (en)

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