Anti-freezing device for steam hose station

Abstract

The utility model relates to the technical field of steam conveying devices, in particular to an anti-freezing device for a steam hose station. The anti-freezing device of the steam hose station comprises a steam main pipe and a branch pipe, the branch pipe is of a U-shaped structure, one end of the branch pipe is communicated with the steam main pipe, the other end of the branch pipe is connected with an air supply pipe, and an automatic drainer is arranged at the lowest position of the U-shaped structure of the branch pipe. A filter is arranged between the end, close to the steam main pipe, of the branch pipe and the automatic drainer and comprises a shell, a filter screen and a cleaning mechanism, the shell is connected with the branch pipe through an upper flange and a lower flange, a liquid inlet and a liquid outlet are formed in the top and the bottom of the shell respectively, and an inner cavity of the shell is communicated with the branch pipe through the liquid inlet and the liquid outlet. A filter screen is arranged on the liquid outlet, the filter screen protrudes upwards to form a cap-shaped structure, the filter screen comprises a cambered-surface-shaped upper top surface and a cylindrical filter side wall, and mesh holes are formed in the filter screen. The device can effectively prevent the branch pipe from being frozen and congealed to cause blockage and influence on steam leading-out, and impurities are removed at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of steam conveying devices, in particular to an anti-freezing and condensation device for a steam hose station. Background Art

[0002] Steam hose stations are commonly used service points in chemical production, such as Figure 1 As shown in the figure, a branch pipe is opened on the steam main pipe, and the end of the branch pipe is connected to a hose. The valve on the branch pipe is controlled to provide steam required for production as needed. At present, due to the long steam transmission pipeline, the steam condenses at the end of the branch pipe and easily forms liquid accumulation, which freezes in the low temperature winter, resulting in blockage of the branch pipe when steam is needed and inability to export steam, thus affecting production. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a steam hose station anti-freezing device, which can effectively prevent the branch pipe from freezing and condensing to cause blockage and affect the steam extraction, and remove impurities at the same time.

[0004] The steam hose station anti-freezing device of the utility model comprises a steam main pipe and a branch pipe, wherein the branch pipe is a U-shaped structure, one end of the branch pipe is connected to the steam main pipe, and the other end of the branch pipe is connected to the air supply pipe, and an automatic drainer is provided at the lowest point of the U-shaped structure of the branch pipe;

[0005] A filter is provided between one end of the branch pipe close to the steam main pipe and the automatic drainer, and the filter includes a shell, a filter screen and a cleaning mechanism. The shell is connected to the branch pipe through an upper flange and a lower flange, and a liquid inlet and a liquid outlet are provided at the top and bottom of the shell respectively. The inner cavity of the shell is connected to the branch pipe through the liquid inlet and the liquid outlet, and a filter screen is provided on the liquid outlet. The filter screen protrudes upward to form a cap-shaped structure, and the filter screen includes an upper top surface of an upward convex arc surface and a cylindrical filter side wall, and mesh holes are provided on the filter screen;

[0006] The cleaning mechanism includes an annular brush arranged in the shell and sleeved on the outside of the filter side wall and two synchronous cylinders fixed to the upper surface of the upper flange. A plurality of groups of bristles are arranged on the inner side of the annular brush corresponding to the filter side wall. Connecting rods are fixed above the left and right sides of the annular brush. The piston rods of the two synchronous cylinders pass through the upper flange and are detachably connected to the connecting rods on the corresponding sides.

[0007] Preferably, the automatic drainer is provided with a drain port, the drain port is connected to a condensate water tank, a water outlet pipe is provided at the bottom of the condensate water tank, and a water pump is provided on the water outlet pipe.

[0008] Preferably, the upper top surface is not provided with mesh holes, but the filtering side wall is provided with mesh holes.

[0009] Preferably, the upper top surface and the filtering side wall are both made of metal.

[0010] Preferably, the lower flange includes, from top to bottom, a shell flange fixed to the lower end of the shell and a lower flange fixed to the branch pipe, and the shell flange and the lower flange are connected together by fixing bolts.

[0011] Preferably, a flushing port is provided on the shell, a first slag discharge port is provided at the bottom of the shell, the first slag discharge port is provided between the filter side wall and the shell side wall, a second slag discharge port is provided on the lower flange, the second slag discharge port is provided on the outside of the branch pipe, the first slag discharge port and the second slag discharge port are interconnected to form a slag discharge channel, and a sealing plug is provided on the slag discharge channel.

[0012] Preferably, the sealing plug includes a sealing strip and a handle fixedly connected to the bottom of the sealing strip, the sealing strip passes through the second slag discharge port and the first slag discharge port from bottom to top in sequence, the sealing strip is threadedly connected to the second slag discharge port and the first slag discharge port, and the handle is arranged outside the slag discharge channel.

[0013] Valves can be installed on the pipeline according to control needs, and the flow of materials in the corresponding pipeline can be conveniently controlled and adjusted by opening and closing the valves.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The accumulated liquid in the branch pipe enters the lowest part of the U-shaped structure in time, and then is discharged through the automatic drainer, which effectively prevents the accumulated liquid from freezing and condensing at low temperatures, causing pipe blockage;

[0016] 2. As the steam transmission line is long, impurities are inevitably generated in the pipeline. The accumulation of impurities in the U-shaped branch pipe will affect the smoothness of the pipeline and the steam flow. The filter removes the impurities entering the U-shaped pipe, and the accumulated liquid first enters the inner cavity of the shell, and then is filtered by the filter and discharged from the liquid outlet, ensuring the smoothness of the branch pipe;

[0017] 3. The annular brush sweeps the filter side wall up and down under the action of the synchronous cylinder, and the impurities on the filter side wall fall to the bottom of the shell, preventing the filter mesh from being blocked and reducing the frequency of disassembling the filter to clean the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the prior art structure;

[0019] Figure 2 This is a schematic diagram of the structure of the anti-freezing device of the steam hose station of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the filter of the utility model;

[0021] Figure 4 This is a schematic diagram of the disassembled structure of the lower flange of the utility model;

[0022] Figure 5This is a schematic diagram of the structure of the filter of the utility model from a top view;

[0023] Figure 6 This is a schematic diagram of the structure of the annular brush of the utility model;

[0024] In the figure: 1. steam main pipe; 2. branch pipe; 3. air supply pipe; 4. automatic drainer; 5. filter; 6. shell; 7. filter screen; 71. upper top surface; 72. filter side wall; 8. liquid inlet; 9. liquid outlet; 10. upper flange; 11. lower flange; 111. shell flange; 112. lower flange; 113. first slag discharge port; 114. second slag discharge port; 12. annular brush; 13. synchronous cylinder; 14. connecting rod; 15. condensate tank; 16. outlet pipe; 17. water pump; 18. flushing port; 19. sealing plug; 191. sealing strip; 192. hand-held part. DETAILED DESCRIPTION

[0025] The present invention will be described clearly and completely below with reference to the accompanying drawings.

[0026] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation for the convenience of expression and do not represent a sequential relationship.

[0027] like Figure 2 As shown, the steam hose station anti-freezing device of the utility model comprises a steam main pipe 1 and a branch pipe 2, the branch pipe 2 is a U-shaped structure, one end of the branch pipe 2 is connected to the steam main pipe 1, and the other end of the branch pipe 2 is connected to the air supply pipe 3, and an automatic drainer 4 is provided at the lowest point of the U-shaped structure of the branch pipe 2;

[0028] like Figure 3 As shown, a filter 5 is provided between one end of the branch pipe 2 close to the steam main pipe 1 and the automatic drain 4, and the filter 5 includes a shell 6, a filter screen 7 and a cleaning mechanism. The shell 6 is connected to the branch pipe 2 through an upper flange 10 and a lower flange 11. A liquid inlet 8 and a liquid outlet 9 are provided at the top and bottom of the shell 6, respectively. The inner cavity of the shell 6 is connected to the branch pipe 2 through the liquid inlet 8 and the liquid outlet 9. A filter screen 7 is provided on the liquid outlet 9. The filter screen 7 protrudes upward to form a cap-shaped structure. The filter screen 7 includes an upper top surface 71 of an upward convex arc surface type and a cylindrical filtering side wall 72. The filter screen 7 is provided with mesh holes;

[0029] like Figure 6 As shown, the cleaning mechanism includes an annular brush 12 arranged in the shell 6 and sleeved on the outside of the filter side wall 72, and two synchronous cylinders 13 fixed to the upper surface of the upper flange 10. A plurality of groups of bristles are provided on the inner side of the annular brush 12 corresponding to the filter side wall 72. Connecting rods 14 are fixed above the left and right sides of the annular brush 12. The piston rods of the two synchronous cylinders 13 pass through the upper flange 10 and are detachably connected to the connecting rods 14 on the corresponding sides.

[0030] The automatic drainer 4 is provided with a drain port, which is connected to a condensation water tank 15 . A water outlet pipe 16 is provided at the bottom of the condensation water tank 15 , and a water pump 17 is provided on the water outlet pipe 16 .

[0031] The upper top surface 71 is provided with no mesh, and mesh is provided on the filtering side wall 72. The upper top surface 71 is a smooth convex arc-shaped metal surface without mesh, which prevents excessive impurities from being attached to the upper top surface 71.

[0032] The upper top surface 71 and the filtering side wall 72 are both made of metal.

[0033] like Figure 4 As shown, the lower flange 11 includes, from top to bottom, a housing flange 111 fixed to the lower end of the housing 6 and a lower flange 112 fixed to the branch pipe 2, and the housing flange 111 and the lower flange 112 are connected together by fixing bolts.

[0034] like Figure 4 , Figure 5 As shown, the housing 6 is provided with a flushing port 18, the bottom of the housing 6 is provided with a first slag discharge port 113, the first slag discharge port 113 is provided between the filter side wall 72 and the side wall of the housing 6, the lower flange 112 is provided with a second slag discharge port 114, the second slag discharge port 114 is provided outside the branch pipe 2, the first slag discharge port 113 and the second slag discharge port 114 are connected to each other to form a slag discharge channel, and a sealing plug 19 is provided on the slag discharge channel. The flushing port 18 and the slag discharge channel are respectively located on both sides of the filter screen 7.

[0035] The sealing plug 19 includes a sealing strip 191 and a handle 192 fixedly connected to the bottom of the sealing strip 191. The sealing strip 191 passes through the second slag discharge port 114 and the first slag discharge port 113 from bottom to top in sequence. The sealing strip 191 is threadedly connected to the second slag discharge port 114 and the first slag discharge port 113. The handle 192 is arranged outside the slag discharge channel.

[0036] The working process is as follows: the accumulated water in the steam main pipe 1 is filtered by the filter 5, enters the lowest point of the U-shaped structure of the branch pipe 2 and is discharged through the automatic drain 4, so that it will not accumulate in the branch pipe 2. When steam is needed, it is sent out through the air supply pipe 3;

[0037] The accumulated water and steam are discharged through the liquid outlet 9 after passing through the liquid inlet 8 and the filter 7, and the impurities therein are filtered out by the filter 7. After a period of use, the two synchronous cylinders 13 are started, and the annular brush 12 is controlled to brush up and down through the connecting rod 14, so that the impurities on the filter side wall 72 are brushed off to the bottom of the shell 6 to prevent the mesh from being blocked and affecting the filtering efficiency; when a large amount of impurities accumulate at the bottom of the shell 6, high-pressure water is introduced through the flushing port 18 to flush the inner cavity of the shell 6, and the annular brush 12 can also be made to brush up and down while flushing, so as to achieve a better cleaning effect. The sealing plug 19 is opened while flushing to discharge the sewage together with the impurities. The flushing port 18 and the slag discharge channel are respectively arranged on both sides of the filter 7, which is more conducive to the discharge of impurities. During flushing, the water entering the branch pipe 2 through the filter 7 is discharged through the automatic drainer 4.

Claims

1. A steam hose station anti-freezing device, comprising a steam main pipe (1) and a branch pipe (2), characterized in that: The branch pipe (2) is a U-shaped structure, one end of the branch pipe (2) is connected to the steam main pipe (1), and the other end of the branch pipe (2) is connected to the air supply pipe (3). An automatic drainer (4) is provided at the lowest point of the U-shaped structure of the branch pipe (2); A filter (5) is provided between one end of the branch pipe (2) close to the steam main pipe (1) and the automatic drainer (4). The filter (5) comprises a shell (6), a filter screen (7) and a cleaning mechanism. The shell (6) is connected to the branch pipe (2) via an upper flange (10) and a lower flange (11). A liquid inlet (8) and a liquid outlet (9) are provided at the top and bottom of the shell (6) respectively. The inner cavity of the shell (6) is connected to the branch pipe (2) via the liquid inlet (8) and the liquid outlet (9). A filter screen (7) is provided on the liquid outlet (9). The filter screen (7) protrudes upward to form a cap-shaped structure. The filter screen (7) comprises an upper top surface (71) of an upward convex arc surface type and a columnar filter side wall (72). The filter screen (7) is provided with mesh holes. The cleaning mechanism comprises an annular brush (12) arranged in a housing (6) and sleeved outside a filter side wall (72), and two synchronous cylinders (13) fixed to the upper surface of an upper flange (10); a plurality of groups of bristles are arranged on the inner side of the annular brush (12) corresponding to the filter side wall (72); connecting rods (14) are fixed above the left and right sides of the annular brush (12); and piston rods of the two synchronous cylinders (13) pass through the upper flange (10) and are detachably connected to the connecting rods (14) on the corresponding sides.

2. The steam hose station anti-freezing device according to claim 1, characterized in that: The automatic drainer (4) is provided with a drain port, which is connected to a condensation water tank (15). A water outlet pipe (16) is provided at the bottom of the condensation water tank (15), and a water pump (17) is provided on the water outlet pipe (16).

3. The steam hose station anti-freezing device according to claim 1, characterized in that: The upper top surface (71) is not provided with mesh holes, while the filtering side wall (72) is provided with mesh holes.

4. The steam hose station anti-freezing device according to claim 3, characterized in that: The upper top surface (71) and the filtering side wall (72) are both made of metal.

5. The steam hose station anti-freezing device according to claim 1, characterized in that: The lower flange (11) comprises, from top to bottom, a housing flange (111) fixed to the lower end of the housing (6) and a lower flange (112) fixed to the branch pipe (2); the housing flange (111) and the lower flange (112) are connected together by fixing bolts.

6. The steam hose station anti-freezing device according to claim 5, characterized in that: The shell (6) is provided with a flushing port (18), the bottom of the shell (6) is provided with a first slag discharge port (113), the first slag discharge port (113) is arranged between the filter side wall (72) and the side wall of the shell (6), the lower flange (112) is provided with a second slag discharge port (114), the second slag discharge port (114) is arranged outside the branch pipe (2), the first slag discharge port (113) and the second slag discharge port (114) are connected to each other to form a slag discharge channel, and a sealing plug (19) is provided on the slag discharge channel.

7. The steam hose station anti-freezing device according to claim 6, characterized in that: The sealing plug (19) comprises a sealing strip (191) and a hand-held portion (192) fixedly connected to the bottom of the sealing strip (191); the sealing strip (191) passes through the second slag discharge port (114) and the first slag discharge port (113) in sequence from bottom to top; the sealing strip (191) is threadedly connected to the second slag discharge port (114) and the first slag discharge port (113); and the hand-held portion (192) is arranged outside the slag discharge channel.

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