Steam filtering device

Abstract

The utility model discloses a steam filtering device which comprises a filtering pipe body, an annular groove coaxial with the filtering pipe body and a plurality of grooves extending in the length direction are formed in the inner wall of the filtering pipe body, one end of each groove is communicated with the annular groove, and the other end of each groove is communicated with the end face of the filtering pipe body; at least one filter screen connecting piece, a front connecting piece and a rear connecting piece are arranged in the filter pipe body, the front connecting piece and the rear connecting piece are used for fixing the filter screen connecting piece, each of the front connecting piece and the rear connecting piece comprises at least three supporting rods, the tail ends of the supporting rods are inserted into the grooves respectively, and the filter screen connecting piece is detachably connected between the front connecting piece and the rear connecting piece; the filter screen connecting piece comprises a connecting shaft and a screen surface, the screen surface is a rotary surface formed by surrounding the connecting shaft, the longitude of the rotary surface is an arc line, and the tail end of the arc line is close to the inner wall of the filter pipe body. According to the utility model, the net surface covers a larger area in a limited space, the filtering capacity is improved, the filtering effect is improved, the filter net connecting piece is convenient to disassemble, assemble and replace, and the use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of steam filtration, and in particular to a steam filtration device. Background Art

[0002] A steam filtration device is an indispensable device on a conveying medium pipeline, which is used to remove impurities in the medium to protect the normal use of valves and equipment. Since the steam passing through the steam filtration device has high heat, the service life of the filter screen is short and needs to be replaced regularly. Moreover, when the steam flow rate in the pipeline or the impurities contained therein change, different filter screens also need to be replaced to achieve the best filtration effect. Content of the Utility Model

[0003] Aiming at the above existing technical problems, the purpose of the utility model is to provide a steam filtration device, which is convenient for replacing the filter screen and improves the filtration effect.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A steam filtration device includes a filter pipe body for connecting in a steam pipeline. Flange plates are arranged at both ends of the filter pipe body, and a plurality of mounting holes are arranged around the flange plates; a ring groove coaxial with the filter pipe body and a plurality of grooves extending along the length direction are arranged on the inner wall of the filter pipe body. One end of the groove communicates with the ring groove, and the other end of the groove communicates with the end face of the filter pipe body; at least one filter screen connecting piece and a front connecting piece and a rear connecting piece for fixing the filter screen connecting piece are arranged in the filter pipe body. The front connecting piece and the rear connecting piece both include at least three support rods, the ends of the support rods are respectively inserted into the grooves, and the filter screen connecting piece is detachably connected between the front connecting piece and the rear connecting piece; the filter screen connecting piece includes a connecting shaft and a mesh surface. The mesh surface is a rotating surface formed around the connecting shaft, the meridian of the rotating surface is an arc, and the end of the arc is close to the inner wall of the filter pipe body.

[0006] Preferably, the connecting shaft of the filter screen connecting piece includes concentric first shaft section and second shaft section. The mesh surface is connected to the first shaft section. An insertion hole is arranged on the end face of the first shaft section far away from the second shaft section, and the diameter of the insertion hole is adapted to the diameter of the second shaft section. A plurality of filter screen connecting pieces can be connected end to end.

[0007] Preferably, the front connecting piece includes a front connecting rod that can be inserted into the insertion hole, and the support rods are evenly distributed around the front connecting rod.

[0008] Preferably, an external thread is arranged on the surface of the second shaft section, and an internal thread corresponding to the external thread is arranged in the insertion hole.

[0009] Preferably, a through hole adapted to the diameter of the second shaft section is provided at the center of the rear connecting member. A nut is sleeved on the part of the second shaft section passing through the through hole. When the support rod of the front connecting member is slid along the groove into the annular groove and rotated by an angle, and the nut is tightened so that the front connecting member abuts against the end face of the annular groove, the filter screen connecting member is fixed.

[0010] Preferably, the number of the grooves is an integer multiple of the support rods.

[0011] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0012] The steam filtering device of the utility model comprises a filtering pipe body for connecting in a steam pipeline. Flange plates are arranged at both ends of the filtering pipe body, and a plurality of mounting holes are arranged around the flange plates. An annular groove coaxial with the filtering pipe body and a plurality of grooves extending along the length direction are arranged on the inner wall of the filtering pipe body. One end of the groove communicates with the annular groove, and the other end of the groove communicates with the end face of the filtering pipe body. At least one filter screen connecting member, a front connecting member and a rear connecting member for fixing the filter screen connecting member are arranged in the filtering pipe body. The front connecting member and the rear connecting member each comprise at least three support rods, and the ends of the support rods are respectively inserted into the grooves. The filter screen connecting member is detachably connected between the front connecting member and the rear connecting member. The filter screen connecting member comprises a connecting shaft and a mesh surface. The mesh surface is a revolving surface formed around the connecting shaft. The warp of the revolving surface is an arc, and the end of the arc is close to the inner wall of the filtering pipe body. The mesh surface covers a larger area in a limited space, improves the filtering capacity and the filtering effect. The filter screen connecting member is convenient for disassembly, installation and replacement, and is more convenient to use. Description of the Drawings

[0013] The technical solution of the utility model will be further described below with reference to the drawings:

[0014] Att Figure 1 is a perspective view of the steam filtering device of the utility model;

[0015] Att Figure 2 is a partial sectional view of the steam filtering device of the utility model;

[0016] Att Figure 3 is a perspective view of the filter screen connecting member of the steam filtering device of the utility model;

[0017] Att Figure 4 is a perspective view of the front connecting member of the steam filtering device of the utility model.

[0018] Wherein: 1. Filtering pipe body; 11. Groove; 12. Annular groove; 2. Flange plate; 21. Mounting hole; 3. Filter screen connecting member; 31. Connecting shaft; 311. First shaft section; 312. Second shaft section; 32. Mesh surface; 4. Front connecting member; 41. Support rod; 42. Front connecting rod; 5. Rear connecting member; 6. Nut. Detailed implementation manners

[0019] The following elaborates on the preferred embodiments of the present utility model in conjunction with the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined.

[0020] It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes.

[0021] As shown in the attached Figure 1 and the attached Figure 2 figures, the steam filtering device of the present utility model includes a filtering pipe body 1 for connecting in a steam pipeline. Both ends of the filtering pipe body 1 are provided with flange plates 2. A plurality of mounting holes 21 are machined around the flange plates 2 to facilitate bolt connection with the steam pipeline. A ring groove 12 coaxial with the filtering pipe body 1 and a plurality of grooves 11 extending along the length direction are formed on the inner wall of the filtering pipe body 1. One end of the groove 11 communicates with the ring groove 12, and the other end of the groove 11 communicates with the end face of the filtering pipe body 1. At least one filter screen connecting member 3 and a front connecting member 4 and a rear connecting member 5 for fixing the filter screen connecting member 3 are installed in the filtering pipe body 1. The front connecting member 4 and the rear connecting member 5 each include at least three support rods 41. The ends of the support rods 41 are respectively inserted into the grooves 11 and can slide along the grooves 11. The filter screen connecting member 3 is detachably connected between the front connecting member 4 and the rear connecting member 5, and different numbers of filter screen connecting members 3 can be installed according to the cleanliness of the steam.

[0022] As shown in the attached Figure 3 figures, the filter screen connecting member 3 includes a connecting shaft 31 and a mesh surface 32. The mesh surface 32 is a revolving surface formed around the connecting shaft 31. The meridians of the revolving surface are arcs, and the ends of the arcs are close to the inner wall of the filtering pipe body 1, so that the mesh surface 32 covers a larger area in a limited space and improves the filtering ability.

[0023] The connecting shaft 31 of the filter screen connector 3 includes concentric first shaft section 311 and second shaft section 312. The screen surface 32 is connected to the first shaft section 311. An insertion hole is formed on the end surface of the first shaft section 311 away from the second shaft section 312. The diameter of the insertion hole is adapted to the diameter of the second shaft section 312. Multiple filter screen connectors 3 can be connected end to end. In this embodiment, three filter screen connectors 3 are installed. According to needs, filter screen connectors 3 with different mesh sizes or screen surfaces 32 for different filter materials can be selected respectively, so as to make the filtering range wider and the filtering more sufficient.

[0024] As shown in the Figure 4 attachment, the front connector 4 includes a front connecting rod 42 that can be inserted into the insertion hole, and the support rods 41 are evenly distributed around the front connecting rod 42. The number of the grooves 11 is an integer multiple of the number of the support rods 41. In this embodiment, there are six grooves 11 on the inner wall of the filter tube body 1, and there are three support rods 41 on one front connector 4. The support rods 41 are inserted into the grooves 11 at intervals to make the force evenly distributed. The rear connector 5 also has three support rods 41. The support rods 41 of the rear connector 5 are staggered with the support rods 41 of the front connector 4 to reduce the shielding of the steam in the same direction.

[0025] External threads are machined on the surface of the second shaft section 312, and internal threads corresponding to the external threads are machined in the insertion hole. Multiple filter screen connectors 3 are connected by screw thread engagement, making the connection more stable and avoiding damage caused by shaking under the impact of steam.

[0026] A through hole adapted to the diameter of the second shaft section 312 is machined in the center of the rear connector 5. A nut 6 is installed on the part of the second shaft section 312 passing through the through hole. Slide the support rods 41 of the front connector 4 along the grooves 11 into the annular groove 12 and rotate an angle. When the nut 6 is tightened and the end surface of the front connector 4 abuts against the annular groove 12, the filter screen connector 3 is fixed.

[0027] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent structural or equivalent process transformations made by using the content of the specification of the present invention, or directly or indirectly applied in other related technical fields, are equally included in the patent protection scope of the present invention.

Claims

1. A steam filtration device, characterized in that: It includes a filter tube body for connecting in a steam pipeline. Flange plates are provided at both ends of the filter tube body, and a number of mounting holes are arranged around the flange plates; a ring groove coaxial with the filter tube body and a number of grooves extending along the length direction are provided on the inner wall of the filter tube body. One end of the groove communicates with the ring groove, and the other end of the groove communicates with the end face of the filter tube body; at least one filter screen connecting member and a front connecting member and a rear connecting member for fixing the filter screen connecting member are arranged in the filter tube body. The front connecting member and the rear connecting member each include at least three support rods, and the ends of the support rods are respectively inserted into the grooves. The filter screen connecting member is detachably connected between the front connecting member and the rear connecting member; the filter screen connecting member includes a connecting shaft and a mesh surface. The mesh surface is a revolving surface formed around the connecting shaft, and the meridian of the revolving surface is an arc, and the end of the arc is close to the inner wall of the filter tube body.

2. The steam filtering device according to claim 1, wherein: The connecting shaft of the filter screen connecting member includes concentric first shaft section and second shaft section. The mesh surface is connected to the first shaft section. An insertion hole is provided on the end face of the first shaft section away from the second shaft section, and the diameter of the insertion hole is adapted to the diameter of the second shaft section. Multiple filter screen connecting members can be connected end to end.

3. The steam filtering device according to claim 2, wherein: The front connecting member includes a front connecting rod that can be inserted into the insertion hole, and the support rods are evenly distributed around the front connecting rod.

4. The steam filtration device according to claim 2, wherein: External threads are provided on the surface of the second shaft section, and internal threads corresponding to the external threads are provided in the insertion hole.

5. The steam filtration device according to claim 4, wherein: A through hole adapted to the diameter of the second shaft section is provided at the center of the rear connecting member. A nut is sleeved on the part of the second shaft section after passing through the through hole. When the support rods of the front connecting member are slid along the groove into the ring groove and rotated by an angle, and the nut is tightened and the front connecting member abuts against the end face of the ring groove, the filter screen connecting member is fixed.

6. The steam filtration device according to claim 1, characterized in that: The number of the grooves is an integer multiple of the support rods.

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