High-pressure steam exhaust device
阅读说明:本技术 一种高压蒸气排气装置 (High-pressure steam exhaust device ) 是由 祝勇军 黄东 胡茂 王刘秉 闵荣辉 麦吉昌 于 2019-10-25 设计创作,主要内容包括:本发明公开了一种高压蒸气排气装置,包括排气主管路、排气支管路;所述排气主管路内设置一导气板,所述导气板在所述排气主管路内侧呈螺旋状延伸并与支管通气口相交;所述排气支管路设置有波形的弯曲通气主管路、连接在弯曲通气主管路的波谷处的贯穿所述弯曲通气主管路的直形支管路;所述直形支管路内设置有控制直形支管路气流通闭的通气缓冲件,所述通气缓冲件设置在直形支管路与弯曲通气主管路连接点的外侧。本发明的高压蒸气排气装置能减缓高压蒸汽对于管路的直接冲击,并引导蒸汽在排气主管路内的流通路径呈螺旋流通,这样一来能使大量的冲击力转化成向心力,二来能对排气主管路内的流通管路进行管路清理,有效的利用冲击力。(The invention discloses a high-pressure steam exhaust device, which comprises an exhaust main pipeline and an exhaust branch pipeline; an air guide plate is arranged in the main exhaust pipeline, extends spirally on the inner side of the main exhaust pipeline and is intersected with the air port of the branch pipe; the exhaust branch pipeline is provided with a wave-shaped bent ventilation main pipeline and a straight branch pipeline which is connected to the wave trough of the bent ventilation main pipeline and penetrates through the bent ventilation main pipeline; and the straight branch pipeline is internally provided with a ventilation buffer piece for controlling the air flow of the straight branch pipeline to be communicated and closed, and the ventilation buffer piece is arranged at the outer side of the connecting point of the straight branch pipeline and the bent ventilation main pipeline. The high-pressure steam exhaust device can slow down the direct impact of high-pressure steam on the pipeline and guide the circulation path of the steam in the exhaust main pipeline to circulate spirally, so that a large amount of impact force can be converted into centripetal force, the circulation pipeline in the exhaust main pipeline can be cleaned, and the impact force is effectively utilized.)
1. A high pressure vapor vent apparatus, comprising: the device comprises an exhaust main pipeline and an exhaust branch pipeline which is connected with the exhaust main pipeline through a branch pipe air vent at an included angle; an air guide plate is arranged in the main exhaust pipeline, extends spirally on the inner side of the main exhaust pipeline and is intersected with the air port of the branch pipe; the exhaust branch pipeline is provided with a wave-shaped bent ventilation main pipeline and a straight branch pipeline which is connected to the wave trough of the bent ventilation main pipeline and penetrates through the bent ventilation main pipeline; and the straight branch pipeline is internally provided with a ventilation buffer piece for controlling the air flow of the straight branch pipeline to be communicated and closed, and the ventilation buffer piece is arranged at the outer side of the connecting point of the straight branch pipeline and the bent ventilation main pipeline.
2. The high pressure vapor vent apparatus as set forth in claim 1, wherein: the ventilating buffer piece comprises an elastic piece and supporting pieces arranged on two sides of the elastic piece; the supporting pieces are arranged on two sides of the elastic piece and seal the ventilation passage of the straight branch pipeline.
3. The high pressure vapor vent apparatus as set forth in claim 2, wherein: the support piece comprises an arc-shaped plate, a support bar with one end connected with the arc-shaped plate, and a blank arc-shaped plate arranged at the other end of the support bar.
4. The high pressure vapor vent apparatus as set forth in claim 3, wherein: the elastic piece comprises a top plate, a bottom plate and a spring piece connected with the top plate and the bottom plate.
5. The high pressure vapor vent apparatus as set forth in claim 4, wherein: the bottom plate is connected to the side of the supporting bar.
6. The high pressure vapor vent apparatus as set forth in claim 1, wherein: and the exhaust main pipeline is connected with a plurality of exhaust branch pipelines.
7. The high pressure vapor vent apparatus as set forth in claim 6, wherein: the exhaust branch pipelines are arranged along the circumferential direction of the exhaust main pipeline, and a plurality of branch pipeline air vents are axially spaced at a certain interval.
8. The high pressure vapor vent apparatus as recited in claim 7, further comprising: the air guide plate is connected with a plurality of branch pipe air vents.
9. The high pressure vapor vent apparatus as set forth in claim 1, wherein: the included angle is 10-80 degrees.
10. The high pressure vapor vent apparatus as set forth in claim 9, wherein: the included angle is 45 degrees.
Technical Field
The invention relates to the field of steam exhaust equipment, in particular to a high-pressure steam exhaust device.
Background
The 50MW power generation gas boiler blowdown system adopts a manner that a manifold converges to a main pipe for continuous and timed blowdown, and the connecting part of a blowdown branch pipe and the main pipe is welded in a 90-degree direct insertion manner, converges to the main pipe and is guided to a blowdown tank.
The design working pressure of the boiler is 9.98MPa, normal operation is about 9.8MPa at ordinary times, the sewage branch pipe and the main pipe are welded in a 90-degree direct insertion mode, steam of the high-pressure steam of the branch pipe can directly impact the wall of the main pipe during operation, impact force is quite large, the main pipe of the sewage pipe is often exploded, and the boiler is temporarily shut down for rush repair. Unnecessary maintenance cost is caused to the normal operation of enterprises.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a high-pressure steam exhaust device which can reduce the impact force of high-pressure steam on a pipeline and can accelerate and guide the gas in a main pipe to circulate.
The invention provides a high-pressure steam exhaust device, which comprises an exhaust main pipeline and an exhaust branch pipeline, wherein the exhaust branch pipeline is connected with the exhaust main pipeline at an included angle through a branch pipe air vent; an air guide plate is arranged in the main exhaust pipeline, extends spirally on the inner side of the main exhaust pipeline and is intersected with the air port of the branch pipe; the exhaust branch pipeline is provided with a wave-shaped bent ventilation main pipeline and a straight branch pipeline which is connected to the wave trough of the bent ventilation main pipeline and penetrates through the bent ventilation main pipeline; and the straight branch pipeline is internally provided with a ventilation buffer piece for controlling the air flow of the straight branch pipeline to be communicated and closed, and the ventilation buffer piece is arranged at the outer side of the connecting point of the straight branch pipeline and the bent ventilation main pipeline.
The air guide plates arranged on the exhaust main pipeline extend spirally along the axial direction in the whole exhaust main pipeline, preferably, the two air guide plates are arranged at the positions of the branch air vents along the two sides of the branch air vents, so that the air of the exhaust branch pipelines can be guided spirally. The main bent ventilation pipeline is arranged into a wave shape, and preferably a plurality of wave-shaped repeated structures are arranged, wherein the wave-shaped repeated structures comprise wave crests and wave troughs; the straight branch pipe is arranged at the position of the wave trough. The part of the bent ventilation main pipeline connected with the exhaust main pipeline is provided with an arc-shaped pipe which is used for combining the straight branch pipeline and the bent ventilation main pipeline into one passage.
The invention also provides the following optimization scheme:
preferably, the ventilating and buffering member comprises an elastic member and supporting members arranged on two sides of the elastic member; the supporting pieces are arranged on two sides of the elastic piece and seal the ventilation passage of the straight branch pipeline.
More preferably, the support piece comprises an arc-shaped plate, a support bar with one end connected with the arc-shaped plate, and a blank arc-shaped plate arranged at the other end of the support bar.
More preferably, the elastic member includes a top plate, a bottom plate, and a spring member connecting the top plate and the bottom plate.
More preferably, the bottom plate is connected to the side of the supporting bar.
Preferably, a plurality of exhaust branch pipes are connected to the exhaust main pipe.
More preferably, the exhaust branch pipes are arranged along the circumferential direction of the exhaust main pipe, and the plurality of branch pipe air vents are spaced at a certain interval in the axial direction.
More preferably, the air guide plate is connected to a plurality of branch pipe air vents.
Preferably, the included angle is 10-80 degrees.
More preferably, the included angle is 45 degrees.
The invention has the beneficial effects that:
1. the high-pressure steam exhaust device can slow down the direct impact of high-pressure steam on the pipeline and guide the circulation path of the steam in the exhaust main pipeline to circulate spirally, so that a large amount of impact force can be converted into centripetal force, the circulation pipeline in the exhaust main pipeline can be cleaned, and the impact force is effectively utilized;
2. the exhaust branch pipeline of the high-pressure steam exhaust device is provided with the bent ventilation main pipeline and the straight branch pipeline, when normal high-pressure steam circulates, the bent ventilation main pipeline is used for circulating, when a large amount of high-pressure steam exists instantaneously, ventilation can be carried out through the bent ventilation main pipeline and the straight branch pipeline, and the small fluctuation range of the air pressure in the pipeline is ensured;
3. the exhaust branch pipelines of the high-pressure steam exhaust device are respectively arranged at different circumferential positions of the exhaust main pipeline and can be arranged in a staggered mode, and the pipeline pressure is dispersed.
Drawings
FIG. 1 is a front view of a high pressure vapor vent apparatus in accordance with a preferred embodiment of the present invention;
FIG. 2 is a perspective view of a high pressure vapor vent apparatus in accordance with a preferred embodiment of the present invention;
FIG. 3 is a perspective view of a high pressure vapor vent apparatus in accordance with a preferred embodiment of the present invention;
FIG. 4 is a perspective view of a high pressure vapor vent apparatus in accordance with a preferred embodiment of the present invention;
FIG. 5 is a perspective view of a high pressure vapor vent apparatus in accordance with a preferred embodiment of the present invention;
FIG. 6 is a front view of a vented bumper of a preferred embodiment of the present invention;
FIG. 7 is a perspective view of a vented bumper of a preferred embodiment of the present invention;
FIG. 8 is a perspective view of a vented bumper of a preferred embodiment of the present invention;
the specific reference numerals are:
1, an exhaust main pipeline; 2 an exhaust branch pipe; 11 branch pipe air ports; 12, a gas guide plate; 21 bending the main ventilation pipeline; 22 straight branch pipes; 23 a venting bumper; 231 an elastic member; 232 a support member; 2311 a top plate; 2312 a bottom plate; 2313 a spring element; 2321 an arc plate; 2322 supporting the bar; 2323 and making a blank arc plate.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the present invention will be further described in detail with reference to the following embodiments.
As shown in fig. 1-8, the present invention firstly provides a high pressure steam exhaust device, which comprises an exhaust main pipeline 1, an
The
The main
The included angle between the main exhaust pipeline 1 and the
The connection part of the curved
The ventilating and
The supporting
The exhaust main pipeline 1 is connected with a plurality of
When the
The use method of the high-pressure steam exhaust device comprises the following steps:
the three
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
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