JPS6050384A - Floating type seal mechanism for rotary regenerative type heat exchanger - Google Patents

Abstract

PURPOSE:To improve the wear resistance of an elastic thin plate seal and also improve the floating property of the seal mechanism by providing a block seal made up from a wear resisting material at a part of a radially floating type seal made up from an elastic thin plate, and further providing a member which does not generate rust on the slide contact portion of the floating plate and the radial partitioning wall. CONSTITUTION:The titled seal mechanism is provided with block seals 17 formed by cutting away a part of the elastic thin plate seal 1 provided between the radial partitioning wall 3 and a fan-shaped plate 6 and made up from a wear resisting material. In the floating plate 12 provided with the elastic thin plate seal 1 and the block seal 17, a spring 4 for pressing the elastic thin plate seal 1 and the block seal 17 to the fan-shaped plate 6 is provided at the upper part of the radial partitioning wall 3, and the spring 4 for reducing the dead weight of the seal mechanism for pressing the elastic thin plate seal 1 and the block seal 17 to the fan-shaped plate 6, is provided at the lower part of the radial partitioning wall 3. A member 20 which does not generate rust is lined on the slide contact surfaces over the full length in the radial direction of the floating plate 12 and the radial partitioning wall 3.

Description

Detailed Description of the Invention (Technical Field) The present invention provides a knoll mechanism for preventing fluid leakage, which is installed on a surface of a rotary regenerative heat exchanger where a sector plate and a heat storage body move relative to each other. The present invention relates to a Knoll mechanism that improves mobility and mobility.

(Prior art) Figure 1 is a sectional view of the radial partition wall of a vertical axis rotary regenerative heat exchanger (6). After setting, when the heat exchanger receives a heat load, the radial partition wall 5 of the rotating heat storage body supported by the low-temperature side bearing 2 causes the outer periphery to droop as shown on the right side of the figure due to the temperature gradient that occurs inside the rotating heat storage body. The elastic thin plate seal 1 is deformed into a radial partition #!
Since the radial partition wall filter is freely attached to I by the spring 4, even if the radial partition wall filter is deformed by drooping, the attached elastic thin plate seal 1 will not be attached to the lower part by the pressing force of the spring 4. The elastic thin plate seal is attached to the fluid-guiding casing 5 by the weight of the knoll mechanism resisting the spring 4, and is pressed against the sliding surface of the fan-shaped plate 6, so that the entire length of the elastic thin plate seal 1 in the radial direction is As a result, the VC is automatically brought into close contact with the elastic thin plate seal 1 and the fan-shaped plate 6, so that there is no gap between the elastic thin plate seal 1 and the fan-shaped plate 6, so that there is almost no leakage of fluid.

However, since the force that presses the elastic thin plate seal 1 against the fan-shaped plate 6 acts on the tip of the elastic thin plate seal 1, which has a small sliding contact cross-sectional area, the elastic thin plate seal 1 Vili-shaped plate 6 and the rotary tank 1i
As the weight increases, the tip of the /-le tends to wear out at a relatively early stage. In addition, when the elastic thin plate seal 1 is rotating in the fluid flow path where it does not slide on the fan-shaped plate 6, the elastic thin plate seal 1 is pushed by the pressing force of the spring 4 or automatically by the knoll mechanism. The tip Q of the knob 1 protrudes somewhat from the sliding surface 7 of the fan-shaped plate 6 (see FIG. 2), but in this state, the elastic thin plate seal 1
In FIG. 2, which shows the view from arrow A, while rotating in the direction of arrow B, the fan-shaped plate entrance which opens the fan-shaped '&6 and the slide 11ij+ (when reaching the 8th point, the tip of the thin plate seal 1 suddenly When it is pushed in by the sliding surface 74, slides on the sliding surface 7, and reaches the fan-shaped detection opening point where it finishes sliding with the fan-shaped plate 6, it is violently pushed out from the sliding surface 7, and the fan-shaped plate 6 There is a problem called koto, in which the rapid vertical movement before and after sliding with the rotary heat storage body accelerates the erosion of the elastic thin plate seal 1, and the rotational resistance of the rotating heat storage body increases and decreases rapidly. The floating plate 12 to which the elastic thin plate knoll 1 is attached slides in the radial direction partition wall 5 in response to the thermal deformation of the radial partition wall 5 or the vertical movement of the elastic thin plate knoll 1. The sliding gap between Naga 4+2 and radial partition 1'+, %5 is a very small gap to prevent bypass leakage of the fluid. Also, dust and the like often accumulate and stick in this gap, obstructing the sliding movement between the two.

For these reasons, there is a need for an improved floating seal mechanism for rotary regenerative heat exchangers that has durability against wear, does not cause sudden downward movements, and does not inhibit the free movement of the floating plates. It had been.

(Object of the present invention) This invention was made in response to the above-mentioned request, and its purpose is to include a part of a radially floating seal made of an elastic thin plate made of a wear-resistant material. Equipped with a block seal that improves the abrasion resistance of the elastic thin plate seal and improves the sliding of the block seal without losing the good sealing function and [lflh'1f7f] of the conventional 4-way floating seal mechanism. By setting the ri/g to 4 & 44t+, the elastic thin plate 7-1 prevents the above-mentioned nib from being severely damaged, and also prevents rust from forming on the sliding surface between the floating plate and the radial partition wall. By equipping the rotary regenerative heat exchanger with a rotary regenerative heat exchanger, it is possible to provide a floating seal mechanism that improves the free movement of the /-ru mechanism.

(Configuration of Embodiment) Embodiments of the present invention will be described below with reference to drawings of a vertical axis rotary regenerative heat exchanger.

FIG. 5 is a side view of the radial partition wall 5 of the heat storage body that rotates with the rotor column 16 in the middle and closed. A block seal 17 made of a wear-resistant material such as cast iron or carbon is installed in the notch in place of the elastic thin plate knob 1 in the notch.
On the floating plate 12 to which the elastic thin plate knoll 1 and the block knoll 7 are attached, the elastic thin plate knoll 1 and the block knoll 17 are attached to the fan-shaped knoll 6 in the upper part of the radial partition wall 5.
At the bottom, a spring 4 pressing the elastic thin plate 1
A spring 4 is provided to reduce the weight of the knoll mechanism that presses the block seal 17 and the fan-shaped lever 6.

FIG. 4 is a view taken along the line E-E in FIG. 5, with the floating plate 12 sandwiching the radial partition wall 5 with a small gap so that it can move freely with the radial partition wall 5. , distribution j−
“9: Sa! λtori.

A holder 18 for holding the block seal 17 is equipped on the fan-shaped plate 6 side of the free M#I2. First, the holder 18 has several adjustment bolts 19 for adjusting the contact state between the block seal 17 and the fan-shaped plate 6. The sliding surfaces of the floating plate 12 and the radial partition wall 5 over the entire length in the radial direction are lined with a rust-resistant member 20, for example, a thin plate of stainless steel. Here, the direction of rotation of the missed FN radial partition wall 6 is shown.

FIG. 5 is a top view of a rotary regenerative heat exchanger equipped with a block seal 1 and a J ring 21, and a radial partition 1 installed in a stone heat storage body 22 which rotates at the same time. %5
While rotating in the direction of the arrow (1), the block knob 17 installed at the inner and outer IAj (t!ff) finishes sliding on the sector w6, and the sliding surface 7 of the sector plate 6 slides on the inner circumference side and outer circumference p10 guide ring 21 disposed on the fluid flow path side with sliding surfaces on the same plane, and then,
It slides on another fan-shaped plate 6, then slides on the sliding ring 21 placed on the other side of the fluid flow path, enters sliding on the original layered layer 6, and repeats this operation thereafter. If necessary, in addition to the inner and outer sliding rings 21, other sliding links and block knobs that slide correspondingly may be added concentrically with these sliding rings 21.

Although the floating seal mechanism of the above embodiment has been described with respect to the configuration of the seal mechanism in the radial partition wall of the vertical axis rotary regenerative heat exchanger, the seal mechanism of the present invention is not limited to this, and for example, Inside the rotating heat storage body 111j
It is also possible to configure a rotary regenerative heat exchanger, etc. in the 111 direction and the outer circumferential direction, and the block knoll and sliding ring can also be configured in accordance with the spirit of the present invention. ## There are no changes due to unavoidable episodes]
z4n is the second, light C).

(Effects of the present invention) By equipping a portion of the entire radial length of the elastic thin plate with a block knoll, most of the force that presses the elastic thin plate seal against the fan-shaped plate in the conventional knoll mechanism is transferred to the elastic thin plate 1. It becomes possible to release the block knob by its own appropriate bending deformation, and the release force acts concentratedly on the block knob. Therefore, since only a portion of the pusher acts on the elastic thin plate seal, the wear of the elastic thin plate/ru due to sliding with the group plate is extremely small, while on the other hand, the block seal Although most of the pressing force will be applied, the block seal is constructed of a wear-resistant material and will not suffer from premature wear due to mowing and sliding.

Brock Knoll is heavier than a general button elastic thin plate seal in unit seal length, but since it is used only for a part of the seal length, it hardly increases the mt of the sealing mechanism, and the spring force is especially higher than that of conventional types. Without the need for reinforcement, this improved sealing mechanism can take advantage of the lightweight features of conventional elastic thin plate sealing mechanisms.

By connecting to the fan-shaped plate and installing a sliding mb'J song on the fluid flow path side that has the same plane as the sliding surface of the fan-shaped plate, the problems at the closed precipitation inlet and outlet that occur in conventional floating seal mechanisms can be eliminated. Since sudden protrusion and push-in movements of the sealing mechanism can be prevented, wear of the elastic lugs can be reduced and rotation of the heat storage body can be made smoother.

Rust-free parts lined on the sliding surfaces of Japanese tiles of floating plates and radial partition walls (A, dents, etc.) to prevent rust from forming on the sliding surfaces, and to prevent dust in the fluid from forming on the sliding surfaces. Since it is a hem plate, it does not adhere much, so it has good conformity between the sliding surfaces of both lining members over the entire length in the radial direction. This has the effect of maintaining smooth movement with the wall.

As a result of the above effects, the seal has good sealing performance against fluid leakage, is lightweight, has good free movement and wear resistance, and is a rotary regenerative type heat storage system that allows the heat storage body to perform smooth rotational movement. A floating seal mechanism for the exchanger can be provided.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view showing the radial partition wall of a conventional rotating 1) 4+1 heat exchanger, and Figure 2 is a cross-sectional view taken from A-A in Figure 1.
5 is a side view of a radial partition wall equipped with a Brock Knoll sealing mechanism; FIG. 4 is a view taken along the line E-E in FIG. 5; Incidentally, the symbols of the main parts in the figure are as follows. 1. Elastic thin plate seal 2... - Low glare, side 11
1 receiver 5... Radial partition wall 4... Spring 5... Casing 6... Garden board 7...
・Sliding surface 8... Spring ice plate 9...
Adjustment nut water plate 10... 81・■Adjustment nut 11・
...Pol I 12... Floating plate 13...
... Nut 14, River, Bolt 15... Insertion plate I6... Rotor column 17... Pocket seal 18... Holter] 9... Adjustment port 2o... ... Rust-free member 21 ... Sliding ring 221゛ Heat storage body B, F, G, river... Rotation direction C ... Fan-shaped plate population D ... Fan-shaped plate exit patent application Person Gadelius Co., Ltd. Tori 2 Diagram 3 Figure 1 Display of the case 1982 Patent Application No. 157229 2 Name of the invention Floating seal mechanism for rotary regenerative heat exchanger 3 Person making the amendment Relationship with the case (Patent applicant) Address Gogo IZ a l r1, 5 Akasaka, Minato-ku, Tokyo Column 5 for the brief explanation of the drawings in the Mei MI document No. 1 IrJ in the brief explanation column for the drawings in the statement of contents of the amendment, 7 from the bottom
Between line 8 and line 8 [FIG. 5 is a diagram of a rotary regenerative heat exchanger equipped with a protrusion ring and a sliding ring. -” is inserted.

Claims (1)

[Claims] A fan-shaped plate attached to a casing that guides fluid and acts as a force component 11 for high-temperature fluid and low-temperature fluid, and a heat storage body that includes a heat absorbing and heat dissipating material in a fan-shaped compartment partitioned by a plurality of radial partition walls. In order to prevent fluid leakage, most of the force that presses the elastic thin plate seal against the fan-shaped plate is applied to the relatively moving surface of the rotary regenerative heat exchanger in the floating knoll mechanism, which is equipped with a relatively moving surface to prevent fluid leakage. A wear-resistant block seal that acts on the wear-resistant block seal, a sliding ring that guides the sliding movement of the wear-resistant block noll, and a member that has free movement that does not cause rust and is attached to the sliding surface of the floating plate and the radial partition wall. A floating sealing machine S of a rotary regenerative heat exchanger is characterized by being equipped with.