Steam conveying tail end leading-out device

Abstract

The invention provides a steam conveying tail end leading-out device which comprises a filtering box body, a rear cover is detachably connected to one side of the filtering box body, an inlet pipe and a discharge pipe which are oppositely arranged are fixedly connected to the filtering box body and the rear cover respectively, and a mounting frame communicating with the filtering box body is fixedly connected to the top face of the filtering box body. A bottom box is further fixedly connected to the bottom surface of the filtering box body and further communicated with the interior of the filtering box body, a filtering piece with the upper end detachably connected into the mounting frame and the lower end abutting against the interior of the bottom box and dividing the filtering box body and the bottom box into a left part and a right part is further arranged in the filtering box body, and the inlet pipe and the discharge pipe are communicated with the spaces on the two sides of the filtering piece respectively; the filtering piece comprises a plurality of layers of filtering plates positioned in the filtering box body, and interlayer spaces are formed in the plurality of layers of filtering plates; and the rear cover is also connected with a rear filter plate positioned between the rear cover and the filter box body. The problem that in the prior art, a filter needs to be frequently cleaned and maintained due to impurity residues is solved.

Description

Technical Field

[0001] This invention relates to the field of filtration equipment technology, and more particularly to a steam conveying terminal outlet device. Background Technology

[0002] Steam is typically transported via pipelines. During transport, steam may carry impurities such as rust, scale, and pipe particles from the boiler. These impurities can damage equipment in subsequent production processes, such as valves, heat exchangers, and turbines, leading to seal failure, erosion, or blockage. Therefore, filtration is necessary at the end of the steam transport process to prevent impurities from entering and causing adverse effects. A filter can be installed at the end valve to trap impurities in the steam. The filter needs cleaning after a period of use, usually through backwashing. While this effectively cleans the filter screen, some impurities may remain inside. These residual impurities will be trapped on the filter screen again during subsequent use, shortening the filter's lifespan and requiring frequent cleaning and maintenance. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a steam delivery terminal outlet device, which solves the problem of frequent cleaning and maintenance required for filters due to residual impurities in existing technologies.

[0004] According to an embodiment, a steam conveying terminal outlet device includes a filter box, a rear cover detachably connected to one side of the filter box, an inlet pipe and a discharge pipe fixedly connected to the filter box and the rear cover respectively, facing each other, an installation frame fixedly connected to the top surface of the filter box and communicating therewith, a bottom box fixedly connected to the bottom surface of the filter box and communicating with the filter box, a filter element provided in the filter box, the upper end of which is detachably connected to the installation frame and the lower end which abuts into the bottom box, dividing both the filter box and the bottom box into left and right parts, the inlet pipe and the discharge pipe communicating with the spaces on both sides of the filter element respectively; the filter element includes a multi-layer filter plate located in the filter box, the multi-layer filter plate having an interlayer space, the filter element also including an inlet pipe communicating with the interlayer space, a first drain pipe fixedly connected to the bottom box and communicating therewith; a rear filter plate located between the rear cover and the filter box is also connected to the rear cover. The filter elements installed inside the filter housing include a multi-layer filter plate at the top and a single-layer filter plate at the bottom. Interlayer spaces are provided within the multi-layer filter plates. During cleaning, flushing water is introduced into the interlayer spaces through the inlet pipe. After being flushed, impurities fall into the bottom tank below with the flushing water and are then discharged from the first drain pipe at the bottom with the flushing water. The amount of impurities remaining during the process can be greatly reduced, thus reducing the adverse effects on subsequent operation and effectively reducing the frequency of cleaning and maintenance. This solves the problem of frequent cleaning and maintenance required for filters in the prior art due to impurity residue.

[0005] Furthermore, the filter element also includes an inlet box that is detachably connected to the mounting frame. The upper end of the multi-layer filter plate is fixedly connected to the inlet box, and the inlet box is also provided with several connecting holes that connect the interior and interlayer spaces. The inlet pipe is fixedly connected to and communicates with the inlet box.

[0006] Furthermore, an insertion groove is recessed on one of the outer side walls of the inlet box, and a through hole is recessed on the bottom surface of the two insertion grooves to connect the grooves to the inlet box. An elastic block is provided in each of the two insertion grooves, and a pull rod with the elastic block passing through both ends is provided between the two through holes. The two ends of the pull rod pass through the outside of the mounting frame and can be detachably locked by a locking device.

[0007] Furthermore, the mounting frame is also provided with through frames that are respectively opposite to the two abutment grooves, and the two elastic blocks extend through the through frames to the outside of the mounting frame. The locking member presses the elastic blocks so that the elastic blocks are elastically pressed into the through frames and the abutment grooves.

[0008] Furthermore, the filter element also includes a single-layer filter plate located in the bottom box. An installation strip is fixedly installed at the bottom of the filter box. A connecting frame is provided on both sides of the installation strip, which communicates with the space on both sides of the single-layer filter plate. The lower end of the multi-layer filter plate and the upper end of the single-layer filter plate abut against the top and bottom surfaces of the installation strip, respectively.

[0009] Furthermore, the multilayer filter plate includes an outer shell and an inner filter plate fixedly disposed inside the outer shell. The inner filter plate is arranged parallel to the opposite side wall of the outer shell and there is an interlayer space between them. First filter holes are respectively provided on the opposite side wall of the outer shell and the inner filter plate.

[0010] Furthermore, the lower sidewall of the outer shell is provided with an outgoing frame that is close to and above the two connecting frames.

[0011] Furthermore, a pair of baffles are fixedly connected inside the filter box, and the two baffles are located outside the two connecting frames and are respectively opposite to the two outlet frames.

[0012] Furthermore, a pair of second drain pipes located outside the two baffles are fixedly connected to the bottom of the filter box, and the two second drain pipes are also connected to the inside of the filter box.

[0013] Furthermore, the bottom box includes an installation box fixedly connected to the bottom of the filter box and an abutment box detachably connected to the installation box. The first drain pipe is fixed on the bottom of the abutment box, and a snap-fit ​​groove is recessed on the inner bottom surface of the abutment box. A snap-fit ​​strip that snaps into the snap-fit ​​groove is fixedly connected to the lower end of the single-layer filter plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The filter elements installed inside the filter box include multi-layer filter plates with interlayer spaces. After the flushing water is introduced into the interlayer spaces through the inlet pipe, the impurities are flushed out and fall into the bottom tank below with the flushing water. Then, they are discharged from the first drain pipe at the bottom with the flushing water. During the process, the amount of impurities remaining can be greatly reduced, thus reducing the adverse effects on subsequent operation and effectively reducing the frequency of cleaning and maintenance. This solves the problem of frequent cleaning and maintenance required for filters in the prior art due to impurities remaining. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 for Figure 1 Enlarged schematic diagram of a local structure at point A; Figure 3 This is a schematic diagram of the insertion groove structure according to an embodiment of the present invention; In the above attached figures: Filter box body 1, inlet pipe 2, outlet pipe 3, multi-layer filter plate 4, outer shell 5, inner filter plate 6, interlayer space 7, inlet pipe 8, bottom box 9, first drain pipe 10, mounting box 11, abutment box 12, single-layer filter plate 13, retaining strip 14, mounting strip 15, transparent window 16, connecting frame 17, outlet frame 18, baffle strip 19, second drain pipe 20, mounting frame 21, inlet box 22, connecting hole 23, elastic block 24, pull rod 25, locking piece 26, bolt 27, connecting box 28, box cover 29, rear cover 30, rear filter plate 31, connecting ring 32, pressure ring 33, abutment groove 34. Detailed Implementation

[0016] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] like Figure 1As shown, the embodiment provides a steam delivery end-out device capable of efficiently filtering steam. The steam delivery end-out device includes a filter housing 1, with a rear cover 30 detachably connected to one side of the filter housing 1. An inlet pipe 2 and an outlet pipe 3 are respectively fixedly connected to the filter housing 1 and the rear cover 30, facing each other. The inlet pipe 2 is used to introduce steam, and the outlet pipe 3 is used to discharge steam. A filter element is also provided inside the filter housing 1, and a rear filter plate 31 is connected to the rear cover 30. Specifically, the rear cover 30 and the filter housing 1 can be detachably connected by a pair of connecting rings 32, and the outer edge of the rear filter plate 31 can also be... A fixed connecting ring 33 is used, which presses between two connecting rings 32, thus detachably connecting the rear filter plate between the filter housing 1 and the rear cover 30. More specifically, the filter element in this solution is a multi-layer filter plate 4. The multi-layer filter plate 4 includes a housing 5 and a single inner filter plate 6 fixed inside the housing 5 and arranged parallel to the side wall of the housing 5. An interlayer space 7 is provided between the inner filter plate 6 and the side wall of the housing 5. First filter holes (or filter holes with different pore sizes) are respectively provided on the side wall of the housing 5 and the inner filter plate 6, so that the steam passing through the multi-layer filter plate 4 is filtered multiple times, improving the filtration effect. As filtration proceeds, impurities are intercepted on the side walls of the outer casing 5 and the inner filter plate 6. Rinsing water can be introduced into the interlayer space 7 through the inlet pipe 8 on the filter element, thus rinsing the impurities on the multi-layer filter plate 4. Furthermore, a second filter hole is provided on the rear filter plate 31 located between the multi-layer filter plate 4 and the discharge pipe 3. The diameter of the second filter hole is smaller than that of the first filter hole, further filtering and intercepting the steam at the rear. This ensures complete steam filtration before it is discharged through the discharge pipe 3 via the rear cover 30, ensuring effective steam filtration. Even further, a [further details about the filter housing 1 and its connection to the multi-layer filter plate 4 are also fixedly connected to the bottom of the filter housing 1.] The impurities washed down in the bottom tank 9 can be discharged into the bottom tank 9 with the flushing water, and then discharged to the outside of the filter box 1 through the first drain pipe 10 set at the bottom of the bottom tank 9. This greatly reduces the amount of impurities remaining in the filter box 1, thus reducing the adverse effects on subsequent operation and effectively reducing the frequency of cleaning and maintenance. This solves the problem of frequent cleaning and maintenance of filters due to impurities in the prior art. Furthermore, since the steam at the rear filter plate 31 has already been filtered by multiple layers of filter plates 4, there are relatively fewer impurities intercepted on the rear filter plate 31. The rear cover 30 can be removed for cleaning only after multiple flushes.

[0018] like Figure 1As shown, the bottom box 9 in this solution is detachable, which facilitates more thorough cleaning of its interior. Specifically, the bottom box 9 includes a mounting box 11 fixedly connected to the bottom of the filter box 1 and an abutment box 12 detachably connected to the mounting box 11. The first drain pipe 10 is fixed to the bottom of the abutment box 12. In a further embodiment, a snap-fit ​​groove is recessed on the inner bottom surface of the abutment box 12. The filter element also includes a single-layer filter plate 13 located inside the bottom box 9, and a snap-fit ​​strip 14 that snaps into the snap-fit ​​groove is fixedly connected to the lower end of the single-layer filter plate 13. An installation strip 15 fixed to the filter box 1 is also provided above the single-layer filter plate 13. The upper end of the single-layer filter plate 13 abuts against the bottom surface of the installation strip 15. Furthermore, a first abutment groove can be recessed on the bottom surface of the installation strip 15 for single-layer filter plate 10 to be inserted. The upper end of the single-layer filter plate 13 is inserted, thus dividing the bottom box 9 into left and right parts. A third filter hole for filtering steam is also provided on the single-layer filter plate 13. In particular, the third filter hole can be smaller in diameter than the first filter hole (the third filter hole can be similar in diameter to the second filter hole or slightly larger than the first filter hole). This allows the filtration to be mainly carried out on the upper multi-layer filter plate 4. In a further embodiment, a transparent part can be provided on the bottom box 9 to observe the situation of impurities intercepted on the single-layer filter plate 13 inside the bottom box 9. When there are many impurities on the single-layer filter plate 13, it indicates that there are also more impurities on the multi-layer filter plate 4, and cleaning is required. Furthermore, the transparent part can be a transparent window 16 fixed on the side wall of the box 12. In a further embodiment, the lower end of the outer shell 5 of the multi-layer filter plate 4 can abut against the top surface of the mounting strip 15. This ensures that the single-layer filter plate 13 and the multi-layer filter plate 4 abut against the mounting strip 15 from the top and bottom respectively, forming a more stable structure among the three. This ensures that the filter element remains stable during the filtration process. More specifically, a second recessed groove can be provided on the top surface of the mounting strip 15 for the lower end of the outer shell 5 to abut against, making the structure between the multi-layer filter plate 4 and the mounting strip 15 more stable.

[0019] like Figure 1As shown, on the bottom surface of the filter housing 1, there are connecting frames 17 located on both sides of the mounting strip 15 and communicating with the bottom box 9. The two connecting frames 17 are located diagonally below the sides of the multi-layer filter plate 4. After rinsing, impurities and water can enter the bottom box 9 below through the connecting frames 17 and finally be discharged through the first drain pipe 10. In particular, the first drain pipe 10 can be a pair located on both sides of the single-layer filter plate 13, so that impurities and water can be discharged from both sides. Furthermore, at the lower ends of the two side walls of the outer shell 5, there are also discharge frames 18 located close to and above the two connecting frames 17. The discharge frames 18 are located below all the first filter holes, and can discharge the cleaning water and impurities in the outer shell 5 during rinsing. Furthermore, on the inner bottom surface of the filter housing 1, there are also a pair of baffles 19 located on both sides of the two connecting frames 17, and the two baffles 19 can also The baffle 19, positioned opposite the two outlet frames 18 and with its upper edge higher than the upper edge of the outlet frame 18, prevents steam from directly passing through the outlet frame 18 and entering the outer casing 5 during steam movement. More specifically, the baffle 19 near the inlet pipe 2 can also be provided with an upwardly extending arc-shaped surface to guide the steam upwards, further preventing steam from directly entering the outlet frame 18. More importantly, the baffle 19 can also block the rinsing water and impurities on both sides of the multi-layer filter plate 4, preventing them from crossing the connecting frames 17 on both sides to the ends of the filter box 1 and entering the bottom box 9 for easier discharge. At the bottom of both ends of the filter box 1, a pair of second drain pipes 20 are also provided outside the two baffles 19. The two second drain pipes 20 are used to discharge impurities and water that accidentally cross the baffles 19, as well as water condensed inside the filter box 1.

[0020] like Figure 1 , 2As shown, a mounting frame 21 is fixedly connected to and communicates with the top surface of the filter box 1. The filter element in this solution also includes an inlet box 22 that is detachably connected to the mounting frame 21. The upper end of the multi-layer filter plate 4 is fixedly connected to the inlet box 22, and the inlet box 22 is also provided with several communicating holes 23 that communicate with its interior and the interlayer space 7. The inlet pipe 8 is fixedly connected to and communicates with the inlet box 22. The inlet pipe 8 extends to the outside to facilitate the access of flushing water. The accessed flushing water enters the inlet box 22 and then enters the lower interlayer space 7 through the provided communicating holes 23. In this solution, the provided interlayer space 7 includes two located on both sides of the inner filter plate 6, and the provided communicating holes 23 include multiple holes that communicate with the two interlayer spaces 7 respectively, so as to introduce flushing water into the two interlayer spaces 7 respectively. In a more detailed scheme, the multiple connecting holes 23 near the inlet pipe 2 can be inclined downwards towards the inlet pipe 2, so that the introduced flushing water flushes the inner wall of the outer casing 5 on that side in an inclined downward direction. The multiple connecting holes 23 near the rear filter plate 31 can be partially inclined downwards towards the inlet pipe 2 and partially inclined downwards towards the rear filter plate 31, so as to clean the inner filter plate 6 and the inner wall of the outer casing 5 on the other side respectively. In actual operation, the first filter hole near the inlet pipe 2 will intercept more impurities, and the first filter hole near the outlet pipe 3 will intercept relatively fewer impurities. This setting allows the first filter hole near the inlet pipe 2 to be flushed with more cleaning water, and at the same time, the first filter hole near the outlet pipe 3 can also be flushed, resulting in a better overall flushing effect.In a further embodiment, the outer wall of the inlet box 22 is recessed with recessed grooves 34. The bottom surface of each groove 34 is recessed with a through hole connecting it to the inlet box 22. An elastic block 24 is installed in each groove 34. A pull rod 25, with both ends of the elastic block 24 passing through it, is inserted between the two through holes. Both ends of the pull rod 25 extend to the outside of the mounting frame 21 and are detachably locked by a locking member 26. The locking member 26 can be a nut that threads with both ends of the pull rod 25. Furthermore, the mounting frame 21 is also provided with through frames corresponding to the two grooves 34. The two elastic blocks 24 extend through the through frames to the outside of the mounting frame 21. The locking member 26 presses the elastic blocks 24 tightly, causing them to elastically press against the through frames and the grooves 34. The elastic blocks 24 can be made of high-temperature resistant rubber, partially located inside the side wall of the inlet box 22, and partially extending to the mounting frame 21. In addition, a barrier is essentially set between the inlet box 22 and the mounting frame 21, blocking the gap between them. The elastic block 24, after locking, elastically presses against the inlet box 22 and the mounting frame 21, providing a better seal. Furthermore, multiple sets of pull rods 25 can be used, resulting in more even and stable pressure on the elastic block 24. Moreover, during rinsing, higher pressure rinsing water can be used, improving rinsing efficiency. This also causes vibration of the multi-layer filter plate 4, which can be transmitted through the inlet box 22 to the elastic block 24, providing a damping effect between the inlet box 22 and the mounting frame 21. The mounting frame 21 and the inlet box 22 can be detachably connected using bolts 27. More specifically, multiple bolts 27 can be located above and below the pull rod 25, allowing for a better connection.

[0021] like Figure 1 , 2 As shown, the inlet box 22 in this solution can also be a detachable structure. That is, the inlet box 22 includes a connecting box 28 that is detachably connected to the mounting frame 21, and a box cover 29 that is detachably connected to the connecting box 28. The inlet pipe 8 is fixed on the box cover 29, and the connecting box 28 is located above the mounting frame 21. This makes it easy to remove the box cover 29 and then clean the inside. The pull rod 25, bolt 27 and other structures are all connected and cooperated with the connecting box 28.

[0022] In this design, valves are installed on the first drain pipe 10, the second drain pipe 20, and the inlet pipe 8 to control their opening and closing; the detachable connection between the filter box 1 and the rear cover 30, the detachable connection of the inlet box 22, and the detachable connection of the bottom box 9 can all be achieved by bolt structure, and rubber gaskets can be added at the connection to improve the sealing performance.

[0023] The steam delivery terminal outlet device provided in this embodiment can efficiently filter steam. After the steam is introduced into the filter box 1 through the inlet pipe 2, most of it first passes through the multi-layer filter plate 4, a small portion enters the bottom box 9 and passes through the single-layer filter plate 13, and a small amount first enters the interlayer space 7, then enters the inlet box 22 and then enters another interlayer space 7, and then passes through the multi-layer filter plate 4. During the process, the steam is filtered by the first filter hole and / or the third filter hole, and then exits from the outlet pipe 3. When cleaning, the steam inlet is first disconnected (a valve for controlling the on / off is provided in front of the steam filter), and then... High-pressure flushing water is introduced through the inlet pipe 8. The flushing water flows downward into the inlet box 22, then into the interlayer space 7, and then outward through the outer shell 5. Impurities are carried downward by the water into the bottom box 9, or partially into both ends of the filter box 1. Finally, the water and impurities are discharged from the first drain pipe 10 and the second drain pipe 20. After a longer period of use, each component can be disassembled for more thorough cleaning, such as disassembling the bottom box 9 to clean the inside of the bottom box 9 and the single-layer filter plate 13, disassembling the inlet box 22 to clean the inside of the inlet box 22, and disassembling the inlet box 22 to remove the multi-layer filter plate 4 for cleaning, etc.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A steam conveying terminal outlet device, characterized in that, The system includes a filter housing, with a detachable rear cover on one side. An inlet pipe and an outlet pipe are fixedly connected to the filter housing and the rear cover, respectively. A mounting frame connected to the top of the filter housing is also fixedly connected to it. A bottom box is fixedly connected to the bottom of the filter housing and is connected to the filter housing. A filter element, detachably connected at the top to the mounting frame and abutting into the bottom box at the bottom, divides both the filter housing and the bottom box into left and right sections. The inlet pipe and outlet pipe are connected to the spaces on both sides of the filter element. The filter element includes multi-layer filter plates located within the filter housing, with interlayer spaces within each multi-layer filter plate. The filter element also includes an inlet pipe connected to the interlayer spaces. A first drain pipe connected to the bottom box is also fixedly connected to it. A rear filter plate is connected to the rear cover between it and the filter housing.

2. The steam conveying terminal outlet device as described in claim 1, characterized in that, The filter element also includes an inlet box that is detachably connected to the mounting frame. The upper end of the multi-layer filter plate is fixedly connected to the inlet box, and the inlet box is also provided with several connecting holes that connect the interior and interlayer spaces. The inlet pipe is fixedly connected to and communicates with the inlet box.

3. The steam conveying terminal outlet device as described in claim 2, characterized in that, The outer side wall of the inlet box is recessed with abutment grooves. The bottom surface of the two abutment grooves is also recessed with through holes that connect the grooves to the inlet box. The two abutment grooves are respectively provided with elastic blocks. A pull rod with elastic blocks at both ends is installed between the two through holes. The two ends of the pull rod extend to the outside of the mounting frame and can be detachably locked by locking components.

4. The steam conveying terminal outlet device as described in claim 3, characterized in that, The mounting frame is also provided with through frames that are directly opposite the two abutment grooves, and the two elastic blocks extend through the through frames to the outside of the mounting frame. The locking member presses the elastic blocks tightly so that the elastic blocks are elastically pressed into the through frames and abutment grooves.

5. The steam conveying terminal outlet device as described in claim 1, characterized in that, The filter element also includes a single-layer filter plate located in the bottom box. An installation strip is fixedly installed at the bottom of the filter box. A connecting frame is provided on both sides of the installation strip, which communicates with the space on both sides of the single-layer filter plate. The lower end of the multi-layer filter plate and the upper end of the single-layer filter plate abut against the top and bottom surfaces of the installation strip, respectively.

6. The steam conveying terminal outlet device as described in claim 5, characterized in that, The multi-layer filter plate includes an outer shell and an inner filter plate fixedly disposed inside the outer shell. The inner filter plate is arranged parallel to the opposite side wall of the outer shell and there is an interlayer space between them. First filter holes are respectively provided on the opposite side wall of the outer shell and the inner filter plate.

7. The steam conveying terminal outlet device as described in claim 6, characterized in that, The lower sidewall of the outer shell has an exit box that is close to and above the two connecting boxes.

8. The steam conveying terminal outlet device as described in claim 7, characterized in that, A pair of baffles are also fixedly connected inside the filter box, and the two baffles are located outside the two connecting frames and are respectively opposite to the two outlet frames.

9. The steam conveying terminal outlet device as described in claim 8, characterized in that, The bottom of the filter box is also fixedly connected to a pair of second drain pipes located outside the two baffles, and the two second drain pipes are also connected to the inside of the filter box.

10. The steam conveying end-out device as described in any one of claims 5-9, characterized in that, The bottom box includes an installation box fixedly connected to the bottom of the filter box and an abutment box detachably connected to the installation box. The first drain pipe is fixed to the bottom of the abutment box. A snap-fit ​​groove is recessed on the inner bottom surface of the abutment box. A snap-fit ​​strip that snaps into the snap-fit ​​groove is fixedly connected to the lower end of the single-layer filter plate.

Images