Steam heat tracing device for denitration ammonia supply pipeline

Abstract

The utility model discloses a denitration ammonia supply pipeline steam heat tracing device, and particularly relates to the technical field of pipeline steam heat tracing, the denitration ammonia supply pipeline steam heat tracing device comprises a thermal insulation pipe, an inner pipe is movably arranged in the thermal insulation pipe, the outer side of the inner pipe is fixedly communicated with two connecting pipes, the two connecting pipes are both fixedly communicated with the thermal insulation pipe, one side of the thermal insulation pipe is fixedly communicated with an air inlet pipe, and the other side of the thermal insulation pipe is fixedly communicated with an air outlet pipe. A first baffle and a second baffle are fixedly connected into the heat preservation pipe, an air outlet pipe is movably arranged between the first baffle and the second baffle, the top end of the air outlet pipe fixedly communicates with the heat preservation pipe, and a shielding assembly is arranged at the top of the air outlet pipe. Steam is stored through the heat preservation pipe, the motor works to drive the lead screw to rotate, the lead screw can drive the sealing sleeve to move upwards, waste gas penetrates through the second baffle and the gas outlet pipe to be discharged out of the heat preservation pipe, in the same way, the motor rotates reversely to drive the sealing sleeve to move downwards, the gas outlet pipe is sealed, the structure is simple, the heating cost is effectively reduced, and the using effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline steam tracing, and more specifically, to a steam tracing device for a denitration ammonia supply pipeline. Background Art

[0002] The pipeline steam tracing device mainly relies on the latent heat of steam for heat transfer. Through the heat exchange between the tracing pipeline and the pipeline to be traced, the temperature of the medium in the pipeline is maintained. The pipeline steam tracing device is widely used in the denitration ammonia supply system. However, in the case of high temperature, less cooling water at the bottom of the condensate pipe is likely to cause a high temperature of the instrument, and in the case where the steam cannot be buffered, it is likely to cause corrosion of the instrument probe. In cold weather, there is more condensate and it is likely to freeze in alpine regions.

[0003] After retrieval, a Chinese patent with the publication number CN216143359U discloses a steam pipeline tracing device. The positioning heat conducting plate and the movable heat conducting plate are nested inside the bracket. After the bracket is buckled with the condensate pipe, the condensate pipe is heated to prevent it from freezing. When in high temperature weather, in order to prevent the condensate pipe from having too high a temperature and affecting the operation of the instrument, the driver lifts the movable heat conducting plate, so that the movable heat conducting plate no longer buckles on the surface of the condensate pipe, reducing heat conduction, and enabling the condensate pipe to work at a more suitable temperature.

[0004] When the above tracing device is in use, the heat on the surface of the steam pipe is absorbed by the fitting bottom plate and conducted to the inside of the heating cavity through the heat conducting column in the middle. However, the steam is not convenient to store in the pipeline, and a large amount of steam is required to heat the ammonia supply pipe, resulting in a high heating cost and a poor use effect. Content of the Utility Model

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a steam tracing device for a denitration ammonia supply pipeline, aiming to solve the problems put forward in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A steam tracing device for a denitration ammonia supply pipeline, including a heat preservation pipe, an inner pipe is movably arranged inside the heat preservation pipe, two connecting pipes are fixedly communicated with the outside of the inner pipe, and both connecting pipes are fixedly communicated with the heat preservation pipe. An air inlet pipe is fixedly communicated with one side of the heat preservation pipe. A first baffle and a second baffle are fixedly connected inside the heat preservation pipe. An air outlet pipe is movably arranged between the first baffle and the second baffle, and the top end of the air outlet pipe is fixedly communicated with the heat preservation pipe. A shielding assembly is arranged at the top of the air outlet pipe, and the shielding assembly includes a motor, a lead screw, a slider and a sealing sleeve.

[0007] Further, the motor is fixedly installed on the heat preservation pipe, and the end of the output shaft of the motor is fixedly connected to the lead screw. The lead screw is movably connected to the heat preservation pipe through a bearing. The slider is movably sleeved on the lead screw, and the sealing sleeve is fixedly sleeved on the slider.

[0008] Further, a limiting block is movably arranged inside the air outlet pipe, and the top end of the limiting block is fixedly connected to the lead screw.

[0009] It can be seen that in the above technical solution, the limiting block can limit the downward movement distance of the slider.

[0010] Further, a support plate is fixedly connected inside the air inlet pipe. A sealing assembly is arranged on one side of the support plate. The sealing assembly includes a connecting plate, a sealing gasket and two springs.

[0011] Further, one end of the sealing gasket is fixedly connected to the connecting plate, and the sealing gasket is located between the two springs. The two ends of the two springs are respectively fixedly connected to the support plate and the connecting plate.

[0012] Further, telescopic rods are movably arranged inside the two springs, and the two ends of the two telescopic rods are respectively fixedly connected to the support plate and the connecting plate.

[0013] It can be seen that in the above technical solution, the two telescopic rods can prevent the two springs from deflecting when deforming, and improve the stability of the sealing gasket.

[0014] Further, a thermometer is fixedly installed on the other side of the heat preservation pipe.

[0015] It can be seen that in the above technical solution, the temperature inside the heat preservation pipe is detected by the thermometer.

[0016] The technical effects and advantages of the present utility model:

[0017] 1. The present utility model stores steam through the heat preservation pipe. When it is necessary to discharge the waste gas inside the heat preservation pipe, the motor is started. The motor works to drive the lead screw to rotate. The lead screw can drive the slider to move upward, thereby driving the sealing sleeve to move upward. The waste gas passes through the second baffle and the air outlet pipe to be discharged from the heat preservation pipe. Similarly, when the motor rotates in reverse, it drives the sealing sleeve to move downward to seal the air outlet pipe. The structure is simple, the heating cost is effectively reduced, and the use effect is good;

[0018] 2. In the present utility model, steam passes through the air inlet pipe and the support plate and enters the heat preservation pipe. The steam drives the sealing gasket to move horizontally, thereby driving the connecting plate to move horizontally, and further driving the two springs to stretch. When no new steam is injected, the two springs rebound to drive the connecting plate to return to its original position, so that the sealing gasket contacts the support plate, and the steam inside the heat preservation pipe cannot flow out through the air inlet pipe. The structure is simple and the use is convenient. Description of the Drawings

[0019] The structures, proportions, sizes, etc. shown in this specification are only used to match the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present utility model. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model.

[0020] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 is a bottom view of the overall structure of the present utility model;

[0022] Figure 3 is a schematic diagram of the assembly structure of the heat preservation pipe and the sealing component of the present utility model;

[0023] Figure 4 is a schematic diagram of the assembly structure of the cross-section of the heat preservation pipe and the cross-section of the support plate of the present utility model;

[0024] Figure 5 is a schematic diagram of the structure of the shielding component of the present utility model;

[0025] Figure 6 is a schematic diagram of the structure of the sealing component of the present utility model.

[0026] In the figure: 1. Heat preservation pipe; 2. Air inlet pipe; 3. Connecting pipe; 4. Thermometer; 5. Air outlet pipe; 6. Shielding component; 7. Inner pipe; 8. Support plate; 9. Sealing component; 10. First baffle; 11. Second baffle; 601. Motor; 602. Lead screw; 603. Slide block; 604. Sealing sleeve; 605. Limit block; 901. Connecting plate; 902. Sealing gasket; 903. Spring; 904. Telescopic rod. Specific embodiments

[0027] The following specific embodiments illustrate the implementation manners of the present utility model. Those familiar with this technology can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Refer to the attached drawings of the specification Figures 1-6, A steam tracing device for a denitrification ammonia supply pipeline in this embodiment includes a heat preservation pipe 1. An inner pipe 7 is movably arranged inside the heat preservation pipe 1. Two connecting pipes 3 are fixedly communicated with the outer side of the inner pipe 7, and both of the two connecting pipes 3 are fixedly communicated with the heat preservation pipe 1. An air inlet pipe 2 is fixedly communicated with one side of the heat preservation pipe 1. A first baffle 10 and a second baffle 11 are fixedly connected inside the heat preservation pipe 1. An air outlet pipe 5 is movably arranged between the first baffle 10 and the second baffle 11, and the top end of the air outlet pipe 5 is fixedly communicated with the heat preservation pipe 1. A shielding assembly 6 is arranged at the top of the air outlet pipe 5. The shielding assembly 6 includes a motor 601, a lead screw 602, a slider 603 and a sealing sleeve 604.

[0029] Furthermore, the motor 601 is fixedly installed on the heat preservation pipe 1, and the end of the output shaft of the motor 601 is fixedly connected with the lead screw 602. The lead screw 602 is movably connected with the heat preservation pipe 1 through a bearing. The slider 603 is movably sleeved on the lead screw 602. The sealing sleeve 604 is fixedly sleeved on the slider 603. A limiting block 605 is movably arranged inside the air outlet pipe 5, and the top end of the limiting block 605 is fixedly connected with the lead screw 602. A thermometer 4 is fixedly installed on the other side of the heat preservation pipe 1.

[0030] Furthermore, a support plate 8 is fixedly connected inside the air inlet pipe 2. A sealing assembly 9 is arranged on one side of the support plate 8. The sealing assembly 9 includes a connecting plate 901, a sealing gasket 902 and two springs 903. One end of the sealing gasket 902 is fixedly connected with the connecting plate 901, and the sealing gasket 902 is located between the two springs 903. The two ends of the two springs 903 are respectively fixedly connected with the support plate 8 and the connecting plate 901. Expansion rods 904 are movably arranged inside the two springs 903, and the two ends of the two expansion rods 904 are respectively fixedly connected with the support plate 8 and the connecting plate 901.

[0031] Among them, steam passes through the air inlet pipe 2 and the support plate 8 and enters the heat preservation pipe 1. The steam drives the sealing gasket 902 to move horizontally, thereby driving the connecting plate 901 to move horizontally, and further driving the two springs 903 to stretch. When no new steam is injected, the two springs 903 rebound to drive the connecting plate 901 to return to its original position, so that the sealing gasket 902 contacts the support plate 8, and the steam in the heat preservation pipe 1 cannot flow out through the air inlet pipe 2. The structure is simple and easy to use. At the same time, the two expansion rods 904 can prevent the two springs 903 from deflecting when deforming, improving the stability of the sealing gasket 902.

[0032] The usage method of this embodiment is as follows:

[0033] In use, ammonia gas enters the inner tube 7 through one of the connecting tubes 3 and is discharged through the other connecting tube 3. At the same time, steam enters the heat preservation tube 1 through the steam inlet pipe 2. The heat preservation tube 1 stores the steam, and the steam heats the ammonia gas in the inner tube 7. The temperature in the heat preservation tube 1 is detected by the thermometer 4. When it is necessary to discharge the waste gas in the heat preservation tube 1, the motor 601 is started. The operation of the motor 601 drives the lead screw 602 to rotate. Since the lead screw 602 is threadedly connected to the slider 603 and the sealing sleeve 604, the first baffle 10 and the second baffle 11 cooperate to restrict the rotation of the slider 603, so the lead screw 602 can drive the slider 603 to move upward, thereby driving the sealing sleeve 604 to move upward. The waste gas passes through the second baffle 11 and the air outlet pipe 5 and is discharged from the heat preservation tube 1. Similarly, when the motor 601 rotates in reverse, it drives the sealing sleeve 604 to move downward to seal the air outlet pipe 5. The structure is simple, the heating cost is effectively reduced, and the use effect is good. At the same time, the limit block 605 can limit the distance that the slider 603 moves downward.

[0034] Contents not described in detail in the specification belong to the prior art well-known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited. Conventional equipment can be used. In this technical solution, since the electrical control components not mentioned belong to the prior art, they are not shown in the figure and will not be described here again.

[0035] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A steam tracing device for a denitrification ammonia supply pipeline, comprising a heat preservation pipe (1), an inner pipe (7) is movably arranged inside the heat preservation pipe (1), two connecting pipes (3) are fixedly communicated with the outer side of the inner pipe (7), and both two connecting pipes (3) are fixedly communicated with the heat preservation pipe (1), and it is characterized in that: One side of the heat preservation pipe (1) is fixedly communicated with an air inlet pipe (2). Inside the heat preservation pipe (1), a first baffle (10) and a second baffle (11) are fixedly connected. An air outlet pipe (5) is movably arranged between the first baffle (10) and the second baffle (11), and the top end of the air outlet pipe (5) is fixedly communicated with the heat preservation pipe (1). A shielding component (6) is arranged at the top of the air outlet pipe (5), and the shielding component (6) includes a motor (601), a lead screw (602), a slider (603) and a sealing sleeve (604).

2. The steam tracing device for the denitrification ammonia supply pipeline according to claim 1, wherein: The motor (601) is fixedly installed on the heat preservation pipe (1), and the end of the output shaft of the motor (601) is fixedly connected with the lead screw (602). The lead screw (602) is movably connected with the heat preservation pipe (1) through a bearing. The slider (603) is movably sleeved on the lead screw (602), and the sealing sleeve (604) is fixedly sleeved on the slider (603).

3. The steam tracing device for the ammonia supply pipeline for denitrification according to claim 1, wherein: A limiting block (605) is movably arranged inside the air outlet pipe (5), and the top end of the limiting block (605) is fixedly connected with the lead screw (602).

4. The steam tracing device for the ammonia supply pipeline for denitrification according to claim 1, characterized in that: A support plate (8) is fixedly connected inside the air inlet pipe (2). A sealing component (9) is arranged on one side of the support plate (8), and the sealing component (9) includes a connecting plate (901), a sealing gasket (902) and two springs (903).

5. The denitration ammonia supply pipeline steam tracing device according to claim 4, characterized in that: One end of the sealing gasket (902) is fixedly connected with the connecting plate (901), and the sealing gasket (902) is located between the two springs (903). The two ends of the two springs (903) are respectively fixedly connected with the support plate (8) and the connecting plate (901).

6. The denitrification ammonia supply pipeline steam tracing device according to claim 4, characterized in that: Two telescopic rods (904) are movably arranged inside the two springs (903), and the two ends of the two telescopic rods (904) are respectively fixedly connected with the support plate (8) and the connecting plate (901).

7. The steam tracing device for the denitrification ammonia supply pipeline according to claim 1, wherein: A thermometer (4) is fixedly installed on the other side of the heat preservation pipe (1).

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