A steam delivery conduit

Abstract

The utility model discloses a steam delivery pipeline, including delivery pipeline, the delivery pipeline includes pipeline end, pipeline middle end, pipeline front end, the pipeline end is located the top of pipeline front end, the pipeline end department intercommunication has jar body, the pipeline front end department intercommunication has steam supply equipment, the pipeline end, pipeline middle end, pipeline front end between is the intercommunication relation, the switch valve is installed in the middle part of pipeline end, the valve body is installed in the middle part of pipeline front end, the bottom of valve body is fixedly connected with valve seat, the inside of valve seat is equipped with the ball, the top of ball is equipped with ball seat, ball seat and valve seat inner wall are the fixed connection relation, the bottom of valve seat intercommunication has the drain pipe, through setting switch valve at the pipeline end, can reduce the condensed water of the accumulation around switch valve, and then reduce the water hammer condition formed at switch valve, prolong the service life of switch valve.

Description

Technical Field

[0001] This utility model relates to a pipeline, and more particularly to a steam transmission pipeline. Background Technology

[0002] During the transportation of high-temperature steam through pipelines, due to the temperature difference between the pipeline wall and the external environment, heat is transferred to the external environment through the pipeline wall, causing the steam temperature to gradually decrease. When the steam temperature drops below the saturation temperature at the current pressure, the steam begins to condense into liquid water, which is called condensate. This condensate will accumulate at the bottom of the pipeline.

[0003] In existing technologies, the valves for steam pipelines are sometimes located at the bottom of the pipeline. During use and observation, it has been found that when the valve is closed quickly, because the downstream pipeline is open, the steam pressure gradually decreases. Below atmospheric pressure, the steam stops flowing, leaving condensate in the pipeline. This condensate, due to atmospheric pressure and the pipeline's inclination, flows back to the lower valve. When the valve is opened or closed, the pressure difference causes water to seep into the valve core, or water hammer occurs at the valve core due to steam-water contact, impacting the valve core. This affects the valve's sealing performance and service life.

[0004] Therefore, this utility model provides a steam conveying pipeline. Utility Model Content

[0005] The purpose of this invention is to provide a steam conveying pipeline to solve the technical problems in the prior art, reduce the accumulation of condensate around the switching valve, thereby reducing the formation of water hammer at the switching valve and extending the service life of the switching valve.

[0006] This utility model provides a steam conveying pipeline, including a pipeline end, a pipeline middle, and a pipeline front end; the pipeline end is located above the pipeline front end; the pipeline end is connected to a tank; the pipeline front end is connected to a steam supply device; the pipeline end, pipeline middle, and pipeline front end are interconnected; a switch valve is installed in the middle of the pipeline end; by placing the switch valve at the pipeline end, the accumulation of condensate around the switch valve can be reduced, thereby reducing the impact of water hammer on the switch valve when it is closed and extending the service life of the switch valve.

[0007] Preferably, a valve body is installed at the middle of the front end of the pipeline; a valve seat is fixedly connected to the bottom of the valve body; a float is provided inside the valve seat; a ball seat is provided on the top of the float; the ball seat and the inner wall of the valve seat are fixedly connected; a drain pipe is connected to the bottom of the valve seat; through the cooperation of the float and the drain pipe, the condensate at the front end of the pipeline can be discharged through the drain pipe, thereby reducing the accumulation of condensate in the pipeline and reducing the occurrence of water hammer.

[0008] Preferably, the end of the drain pipe is connected to a filter; multiple filter pads are fixed to the inner wall of the filter; by setting up the filter and filter pads, after the condensate enters the filter through the drain pipe, it will pass through the filter pads, and the filter pads will filter the condensate, thereby reducing the impurities carried in the condensate and improving the purity of the condensate.

[0009] Preferably, a slide rod is slidably connected through the top of the valve body; a spring is fixed between the top of the slide rod and the top of the valve body; multiple round holes are provided on the surface and bottom of the slide rod; when the valve is closed, water hammer is generated inside the conveying pipeline, causing the pressure inside the pipeline to rise. At this time, the slide rod will be pushed out under the high pressure inside the pipeline, and the spring will be in a stretched state. The round holes on the surface of the slide rod will also be exposed to the outside. The slide rod can connect the conveying pipeline with the outside through the round hole at the bottom, thereby releasing the gas inside the conveying pipeline to relieve pressure inside the pipeline and reduce the impact of water hammer on the conveying pipeline.

[0010] Preferably, a sealing ring is fixed to the top of the valve body; the sealing ring is located outside the slide rod; by setting the sealing ring, when the slide rod is not pushed out, the round hole will be located inside the valve body, and the sealing ring will seal the connection gap between the slide rod and the valve body, thereby improving the sealing performance of the slide rod during operation.

[0011] Preferably, the outer wall of the conveying pipe is fixed with thermal insulation cotton; by setting thermal insulation cotton, the steam in the conveying pipe can be kept warm, reducing the heat exchange between it and the outside, thereby reducing the condensate generated in the conveying pipe.

[0012] Compared with the prior art, this utility model reduces the amount of condensate accumulating around the switch valve by placing the switch valve at the end of the pipeline, thereby reducing the formation of water hammer at the switch valve and extending the service life of the switch valve. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the conveying pipeline in this utility model;

[0015] Figure 3 This is a schematic diagram of the valve body in this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the float in this utility model;

[0017] Figure 5 This is a schematic diagram of the slide bar in this utility model.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Tank body; 12. Conveying pipeline; 121. Pipeline end; 122. Pipeline middle; 123. Pipeline front end; 13. Switch valve; 2. Valve body; 22. Valve seat; 23. Drain pipe; 24. Float; 25. Ball seat; 3. Filter; 32. Filter pad; 4. Slide rod; 42. Spring; 43. Round hole; 5. Sealing ring; 6. Insulation cotton. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] Embodiments of this utility model:

[0022] like Figures 1-5 As shown, a steam conveying pipeline includes a conveying pipeline 12, which includes a pipeline end 121, a pipeline middle section 122, and a pipeline front section 123. The pipeline end 121 is located above the pipeline front section 123. The end of the pipeline end 121 is connected to a tank 1. The end of the pipeline front section 123 is connected to a steam supply device. The pipeline end 121, the pipeline middle section 122, and the pipeline front section 123 are interconnected. A switch valve 13 is installed in the middle of the pipeline end 121. During operation, hot steam is pressurized and conveyed into the conveying pipeline 12 through the steam supply device, which can be an air compressor. The pressurized hot steam enters the tank 1 through the conveying pipeline 12. The interior of valve 12 is filled with a large amount of steam. When valve 13 is closed, the steam in the end of pipe 121 will condense over time. Valve 13 can be a butterfly valve. Since the middle end of pipe 122 is vertically set, the condensate at the input end of valve 13 will flow back along the middle end of pipe 122 to the front end of pipe 123. This can make the filled steam more saturated. Due to the static pressure, the condensate accumulated around valve 13 can be reduced, thus reducing the water hammer formed at valve 13 and reducing the impact of condensate on valve 13. By setting valve 13 at the end of pipe 121, the condensate accumulated around valve 13 can be reduced, thus reducing the water hammer formed at valve 13 and extending the service life of valve 13.

[0023] like Figures 3-4As shown, a valve body 2 is installed in the middle of the front end 123 of the pipe; a valve seat 22 is fixedly connected to the bottom of the valve body 2; a float 24 is provided inside the valve seat 22; a ball seat 25 is provided on the top of the float 24; the ball seat 25 and the inner wall of the valve seat 22 are fixedly connected; a drain pipe 23 is connected to the bottom of the valve seat 22; when the condensate in the front end 123 of the pipe flows, it will pass through the valve body 2 and flow into the valve seat 22. At this time, the float 24 will rise under the buoyancy of the liquid level. At this time, the float 24 will stop blocking the drain pipe 23 and make the drain pipe 23 open. When the valve is in the open state, condensate can be discharged from the drain pipe 23. In addition, since water fills the cavity between the float 24 and the drain pipe 23 to form a water seal, steam can pass through the valve body 2 normally. The drain pipe 23 can be connected to the condensate return pipe of the steam system to make full use of the condensate and reduce the condensate accumulation in the delivery pipe 12. Through the cooperation of the float 24 and the drain pipe 23, the condensate at the front end 123 of the pipe can be discharged through the drain pipe 23 to reduce the condensate accumulation in the delivery pipe 12 and reduce the occurrence of water hammer.

[0024] like Figures 3-4 As shown, the end of the drain pipe 23 is connected to a filter 3; multiple filter pads 32 are fixed to the inner wall of the filter 3; by setting the filter 3 and filter pads 32, after the condensate enters the filter 3 through the drain pipe 23, it will pass through the filter pads 32, and the filter pads 32 will filter the condensate, thereby reducing the impurities carried in the condensate and improving the purity of the condensate.

[0025] like Figures 3-5 As shown, a slide rod 4 is slidably connected through the top of the valve body 2; a spring 42 is fixed between the top of the slide rod 4 and the top of the valve body 2; multiple round holes 43 are provided on the surface and bottom of the slide rod 4; when the switch valve 13 is closed, water hammer is generated inside the conveying pipe 12, causing the internal pressure of the conveying pipe 12 to rise. At this time, the slide rod 4 will be pushed out under the high pressure inside the conveying pipe 12, and the spring 42 will be in a stretched state. The round holes 43 on the surface of the slide rod 4 will also be exposed to the outside. The slide rod 4 can connect the conveying pipe 12 with the outside through the round holes 43 at the bottom, thereby allowing the gas inside the conveying pipe 12 to be discharged, so as to depressurize the inside of the conveying pipe 12 and reduce the impact of water hammer on the conveying pipe 12.

[0026] like Figures 3-5 As shown, a sealing ring 5 is fixed to the top of the valve body 2; the sealing ring 5 is located outside the slide rod 4; by setting the sealing ring 5, when the slide rod 4 is not pushed out, the round hole 43 will be located inside the valve body 2, and the sealing ring 5 will seal the connection gap between the slide rod 4 and the valve body 2, thereby improving the sealing performance of the slide rod 4 when it is working.

[0027] like Figures 1-2As shown, the outer wall of the conveying pipe 12 is fixed with thermal insulation cotton 6; by setting thermal insulation cotton 6, the steam in the conveying pipe 12 can be kept warm, reducing the heat exchange between it and the outside world, thereby reducing the condensate generated in the conveying pipe 12.

[0028] The working principle of this utility model:

[0029] Hot steam is pressurized and delivered to the inside of the delivery pipe 12 via a steam supply device, which can be an air compressor. The pressurized hot steam enters the inside of the tank 1 through the delivery pipe 12. Since the inside of the delivery pipe 12 is filled with a large amount of steam, condensate will form in the steam at the end 121 of the pipe over time when the switch valve 13 is closed. The switch valve 13 can be a butterfly valve. Since the middle end 122 of the pipe is vertically set, the condensate at the input end of the switch valve 13 will flow back along the middle end 122 to the front end 123 of the pipe, which can make the filled steam more saturated, and due to the static pressure, the cycle time of the switch valve 13 can be reduced. The accumulation of condensate reduces the risk of water hammer at the valve 13, thus minimizing the impact of condensate on the valve 13. When condensate flows through the front end 123 of the pipe, it passes through the valve body 2 and flows into the valve seat 22. At this time, the float 24 rises under the buoyancy of the liquid level, stopping its blockage of the drain pipe 23 and opening it. Condensate can then be discharged from the drain pipe 23. Furthermore, because water fills the cavity between the float 24 and the drain pipe 23, forming a water seal, steam can pass normally through the valve body 2. The drain pipe 23 can be connected to the condensate return pipe of the steam system. To fully utilize condensate and reduce condensate buildup in the delivery pipe 12, a filter 3 and a filter pad 32 are installed. After entering the filter 3 through the drain pipe 23, the condensate passes through the filter pad 32, which filters the condensate, reducing impurities and improving its purity. When the switch valve 13 is closed, water hammer occurs inside the delivery pipe 12, increasing the internal pressure. At this time, the slide bar 4 is pushed out by the high pressure inside the delivery pipe 12, and the spring 42 is stretched. The round hole 43 on the surface of the slide bar 4 is also exposed. The slide rod 4 can connect the conveying pipe 12 to the outside through the bottom round hole 43, thereby releasing the gas inside the conveying pipe 12 to relieve pressure and reduce the impact of water hammer on the conveying pipe 12. By setting the sealing ring 5, when the slide rod 4 is not pushed out, the round hole 43 will be located inside the valve body 2, and the sealing ring 5 will seal the connection gap between the slide rod 4 and the valve body 2, thereby improving the sealing performance of the slide rod 4 during operation. By setting the heat insulation cotton 6, the steam in the conveying pipe 12 can be kept warm, reducing the heat exchange between it and the outside, thereby reducing the condensate generated in the conveying pipe 12.

[0030] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. A steam conveying pipeline, comprising a conveying pipeline (12), characterized in that: The conveying pipeline (12) includes a pipeline end (121), a pipeline middle (122), and a pipeline front (123). The pipeline end (121) is located above the pipeline front (123). The pipeline end (121) is connected to a tank (1), and the pipeline front (123) is connected to a steam supply device. The pipeline end (121), the pipeline middle (122), and the pipeline front (123) are connected. A switch valve (13) is installed in the middle of the pipeline end (121).

2. A steam conveying pipeline according to claim 1, characterized in that: A valve body (2) is installed in the middle of the front end (123) of the pipe. A valve seat (22) is fixedly connected to the bottom of the valve body (2). A float (24) is provided inside the valve seat (22). A ball seat (25) is provided on the top of the float (24). The ball seat (25) and the inner wall of the valve seat (22) are fixedly connected. A drain pipe (23) is connected to the bottom of the valve seat (22).

3. A steam conveying pipeline according to claim 2, characterized in that: The drain pipe (23) is connected to a filter (3) at its end, and a plurality of filter pads (32) are fixed to the inner wall of the filter (3).

4. A steam conveying pipeline according to claim 3, characterized in that: A slide rod (4) is slidably connected through the top of the valve body (2). A spring (42) is fixed between the top of the slide rod (4) and the top of the valve body (2). Multiple round holes (43) are opened on the surface and bottom of the slide rod (4).

5. A steam conveying pipeline according to claim 4, characterized in that: A sealing ring (5) is fixed to the top of the valve body (2), and the sealing ring (5) is located outside the slide rod (4).

6. A steam conveying pipeline according to claim 5, characterized in that: The outer wall of the conveying pipe (12) is fixed with thermal insulation cotton (6).

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