CN214888933U - Rectangular heat-preservation air valve blade structure with leakage requirement - Google Patents
Rectangular heat-preservation air valve blade structure with leakage requirement Download PDFInfo
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- CN214888933U CN214888933U CN202121754311.9U CN202121754311U CN214888933U CN 214888933 U CN214888933 U CN 214888933U CN 202121754311 U CN202121754311 U CN 202121754311U CN 214888933 U CN214888933 U CN 214888933U
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Abstract
The utility model provides a rectangular heat-preservation air valve blade structure with leakage requirements, which comprises side plates, wherein the two side plates fix a rubber-plastic heat-preservation layer and a shaft in the middle, and the shaft and the rubber-plastic heat-preservation layer are mutually perpendicular and fixedly connected; the side plate is of a rectangular structure with a middle bulge, and the middle bulge is used for mounting a shaft; the rubber-plastic heat-insulating layers are positioned on two sides of the shaft; the blade sealing strip is positioned on the outer side of the rubber-plastic heat-insulating layer and clamped between the two side plates, the blade sealing strip is fixedly connected with the side plates through bolts, spring washers and locking nuts, the bolts penetrate through the side plates and the blade sealing strip and are connected with the locking nuts through threads, and the spring washers are positioned between the locking nuts and the side plates; the part of the blade sealing strip, which is exposed out of the side plates, is in a right trapezoid shape, the width of the lower bottom of the right trapezoid shape is equal to half of the distance between the two side plates, and the right angle of the right trapezoid shape is located in the middle of the middle between the two side plates. The blade is simple in structure and convenient to assemble, and meets the requirements of heat preservation and lower leakage amount.
Description
Technical Field
The utility model belongs to the technical field of the blast gate, a rectangle heat preservation blast gate blade structure that has the leakage requirement is related to.
Background
The ventilation system is an important auxiliary system of the nuclear power plant, not only keeps indoor temperature, humidity and pressure within specified limits, but also limits filtered air, reduces diffusion of radioactive pollutants to the environment and the like, and ensures that the working environment required by equipment and personnel is met under various working conditions of the nuclear power plant. In a ventilation system, a heat preservation air valve with a heat preservation layer attached to a blade and without leakage requirements is a mature product. However, in some special working conditions, the air valve which needs to meet both heat preservation and leakage rate is required, and how to ensure that the valve reaches the required leakage rate becomes a problem to be solved urgently. The air valve in the prior art isolates the temperature difference of two sides of the blade by arranging the heat insulation material between two side plates of the blade, and adopts a centrosymmetric hard seal or soft seal structure to ensure the leakage rate, wherein the leakage rate which can be reached by the soft seal is lower, the prior art scheme is basically that U-shaped seal rings are fixed on the two blades, and the surfaces of the seal rings of the two adjacent blades are mutually extruded to achieve the sealing purpose. But the shape of current sealing washer and the extruded form of each other can only reach certain leakage rate under the effect of actual pipeline medium amount of wind and pressure, embody on the blast gate sealing performance, but can't satisfy the operating mode that requires other leakage rates, and then the utility model provides a can satisfy the rectangle heat preservation blast gate blade structure of higher leakage requirement just.
Disclosure of Invention
In order to solve the problem, the utility model provides a rectangle heat preservation blast gate blade structure that has leakage requirement can satisfy the heat preservation and let out the leakage quantity requirement.
In order to achieve at least one of the purposes, the utility model adopts the technical scheme that the utility model provides a rectangular heat-preservation air valve blade structure with leakage requirements, which comprises side plates, wherein the rubber-plastic heat-preservation layer and a shaft are fixed in the middle by the two side plates, and the rubber-plastic heat-preservation layer and the shaft are mutually perpendicular and fixedly connected, so that the temperature difference at two sides of the blade can be effectively isolated; the side plate is of a rectangular structure with a middle bulge, and the middle bulge is used for mounting a shaft; the rubber-plastic heat-insulating layers are positioned on two sides of the shaft; the blade sealing strip is positioned on the outer side of the rubber-plastic heat-insulating layer and clamped between the two side plates, the blade sealing strip is fixedly connected with the side plates through bolts, spring washers and locking nuts, the bolts penetrate through the side plates and the blade sealing strip and are in threaded connection with the locking nuts, and the spring washers are positioned between the locking nuts and the side plates, so that the stability and the reliability of the blade sealing strip during pipeline vibration and high-speed medium flow can be effectively ensured; the part of the blade sealing strip, which is exposed out of the side plates, is in a right trapezoid shape, the width of the lower bottom of the right trapezoid shape is equal to half of the distance between the two side plates, and the right angle of the right trapezoid shape is located in the middle of the middle between the two side plates.
Further, when two adjacent rectangular heat preservation blast gate blade structures that have the leakage requirement overlap joint, the right angle trapezoidal form of two adjacent blade sealing strips exposes some intermeshing: the vertical surface, the upper bottom surface and the lower bottom surface of the right trapezoid are mutually corresponding and tightly attached, and the leakage rate of the air valve is effectively guaranteed.
Preferably, the bolt hole of blade sealing strip is the slotted hole, facilitates the use lock nut and curb plate to connect and can carry out position control through the slot hole.
The utility model has the advantages that:
the rubber-plastic heat-insulating layer is arranged in the middle of the blade, so that the temperature difference at two sides of the blade is effectively isolated; the fastener adopts the lock nut, so that the stability and reliability of the vibration of the pipeline and the high-speed flow of the medium can be effectively ensured; the adjacent sealing strips of the blades are tightly attached and are double sealed, so that the leakage rate of the air valve is effectively ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a rectangular heat-insulating air valve blade with leakage requirements according to an embodiment of the present invention.
Fig. 2 is a structural connection diagram of two rectangular heat-preservation air valve blades with leakage requirements according to the embodiment of the present invention.
Fig. 3 is a schematic view of a blade sealing strip according to an embodiment of the present invention.
Fig. 4 is a sectional view taken along line a-a of fig. 3.
In the figure, 1, a side plate, 2, a bolt, 3, a spring washer, 4, a locking nut, 5, a rubber-plastic heat-insulating layer, 6, a blade sealing strip and 7, a shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-4, the utility model provides a rectangular heat preservation air valve blade structure with leakage requirement, which comprises two side plates 1, wherein the rubber and plastic heat preservation layer 5 and the shaft 7 are fixed in the middle of the two side plates 1, and the rubber and plastic heat preservation layer 5 and the shaft 7 are mutually perpendicular and fixedly connected, so that the temperature difference at the two sides of the blade can be effectively isolated; the side plate 1 is of a rectangular structure with a middle bulge, and the middle bulge is used for mounting a shaft 7; the rubber-plastic heat-insulating layer 5 is positioned at two sides of the shaft 7; the blade sealing strip 6 is positioned on the outer side of the rubber-plastic heat-insulating layer 5 and clamped between the two side plates 1, the blade sealing strip 6 is fixedly connected with the side plates 1 through bolts 2, spring washers 3 and locking nuts 4, the bolts 2 penetrate through the side plates 1 and the blade sealing strip 6 and are in threaded connection with the locking nuts 4, and the spring washers 3 are positioned between the locking nuts 4 and the side plates 1, so that the stability and reliability of the blade sealing strip 6 during pipeline vibration and high-speed medium flow can be effectively guaranteed; the part of the blade sealing strip 6, which is exposed out of the side plates 1, is in the shape of a right trapezoid, the width of the lower bottom of the right trapezoid is equal to half of the distance between the two side plates 1, and the right angle of the right trapezoid is located in the middle of the middle between the two side plates 1.
Further, when two adjacent rectangular heat preservation blast gate blade structures that have the leakage requirement overlap joint, the right angle trapezoidal form of two adjacent blade sealing strips 6 exposes some intermeshing: the vertical surface, the upper bottom surface and the lower bottom surface of the right trapezoid are mutually corresponding and tightly attached, and the leakage rate of the air valve is effectively guaranteed.
Preferably, the bolt hole of the blade seal strip 6 is a long through hole, so that the locking nut 4 and the side plate 1 can be conveniently used for connection and position adjustment can be carried out through the long hole.
The utility model discloses a working process does:
the shaft 7 is driven to rotate by a manual device or an electric device, the shaft 7 drives the side plate 1 to rotate, and then the effect of opening the blade to a certain angle or closing the blade is achieved, and the effects of blocking and adjusting air flow in a pipeline and cutting off a ventilation system are achieved. When the leakage rate is required, the fitting degree of the blade sealing strips 6 between two adjacent blades can be adjusted, so that the required leakage rate is achieved.
The utility model has the advantages that:
1) the rubber-plastic heat-insulating layer is arranged in the middle of the blade, so that the temperature difference of two sides of the blade is effectively isolated, and compared with other heat-insulating materials of the existing structure, the rubber-plastic heat-insulating layer has better shape integrity and is more attached to the coating property of the blade;
2) the fastening piece of the blade adopts the locking nut, so that the stability and reliability of the vibration of the pipeline and the high-speed flowing of the medium can be effectively ensured, and compared with the existing common nut, the locking nut can prevent the loosening and falling caused by the vibration of the pipeline and the left and right internal medium air quantity and pressure, so that the blade is scattered;
3) two adjacent blade sealing strips adopt a step-shaped sealing strip with the section shown in figure 1. The right trapezoid-shaped parts of the sealing strips, which are exposed outside the blade side plates, are mutually meshed, and the vertical surface and the upper and lower bottom surfaces of the right trapezoid are respectively and correspondingly tightly attached, so that double sealing is realized, and the leakage rate of the air valve is effectively ensured; and the sealing strip has the adjustability, can adjust the sealing strip of two adjacent blades according to actual conditions in the assembly stage, makes them can closely laminate completely, guarantees to reach lower leakage rate.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (3)
1. The utility model provides a rectangle heat preservation blast gate blade structure that has leakage requirement which characterized in that: the rubber-plastic heat-insulating layer comprises side plates (1), wherein the rubber-plastic heat-insulating layer (5) and a shaft (7) are fixed between the two side plates (1), and the shaft (7) and the rubber-plastic heat-insulating layer (5) are mutually vertically and fixedly connected; the side plate (1) is of a rectangular structure with a middle bulge, and the middle bulge is used for mounting a shaft (7); the rubber-plastic heat-insulating layer (5) is positioned at both sides of the shaft (7); the blade sealing strip (6) is positioned on the outer side of the rubber-plastic heat-insulating layer (5) and clamped between the two side plates (1), the blade sealing strip (6) is fixedly connected with the side plates (1) through bolts (2), spring washers (3) and locking nuts (4), the bolts (2) penetrate through the side plates (1) and the blade sealing strip (6) and are in threaded connection with the locking nuts (4), and the spring washers (3) are positioned between the locking nuts (4) and the side plates (1); the part of the blade sealing strip (6) exposed out of the side plates (1) is in a right trapezoid shape, the width of the lower bottom of the right trapezoid shape is equal to half of the distance between the two side plates (1), and the right angle of the right trapezoid shape is located in the middle of the middle between the two side plates (1).
2. The rectangular heat-insulating air valve blade structure with the leakage requirement as claimed in claim 1, wherein: when two adjacent rectangle heat preservation blast gate blade structure overlap joints that have the leakage requirement, the right angle trapezoidal form of two adjacent blade sealing strips (6) exposes partial intermeshing: the vertical surface, the upper bottom surface and the lower bottom surface of the right trapezoid are mutually and correspondingly and tightly attached.
3. The rectangular heat-insulating air valve blade structure with the leakage requirement as claimed in claim 1, wherein: the bolt hole of the blade sealing strip (6) is a long through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121754311.9U CN214888933U (en) | 2021-07-30 | 2021-07-30 | Rectangular heat-preservation air valve blade structure with leakage requirement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121754311.9U CN214888933U (en) | 2021-07-30 | 2021-07-30 | Rectangular heat-preservation air valve blade structure with leakage requirement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214888933U true CN214888933U (en) | 2021-11-26 |
Family
ID=78910006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121754311.9U Active CN214888933U (en) | 2021-07-30 | 2021-07-30 | Rectangular heat-preservation air valve blade structure with leakage requirement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214888933U (en) |
-
2021
- 2021-07-30 CN CN202121754311.9U patent/CN214888933U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 050222 No.69, Shitong Road, Luquan District, Shijiazhuang City, Hebei Province Patentee after: Shijiazhuang Xianchu Nuclear Equipment Co.,Ltd. Address before: 050222 No.69, Shitong Road, Luquan District, Shijiazhuang City, Hebei Province Patentee before: SHIJIAZHUANG NO.1 VALVE FACTORY CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |