JP2016173124A - Steam trap and leg thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a steam trap capable of assuring an operation space for an operation member under a state in which the steam trap is installed on the ground or the like.SOLUTION: A steam trap 10 comprises a casing 11 in which a main body part 12 and a lid part 13 are fastened by bolts 18 inserted from above in a vertical direction and which has a drain discharging passage therein. The steam trap further comprises a rod-like operating member 17 arranged to pass through the lower part of the casing 11 and advanced into the discharging passage while the outer end thereof is being pushed into the casing 11 so as to remove foreign materials in the discharging passage and leg segments 20 formed into rod-like shape extending in a vertical direction and provided with threaded holes 21a engaged in thread with the lower ends of the bolts 18 at upper ends thereof.SELECTED DRAWING: Figure 1

Description

  The present application relates to a steam trap provided with a cleaning mechanism for removing foreign substances clogged in a drain discharge port and a leg portion thereof.

  For example, as disclosed in Patent Document 1, a steam trap having a cleaning mechanism that removes foreign matter clogged in a drain (condensate) discharge port is known. This cleaning mechanism includes a rod-shaped operation member that advances and retreats to and from the discharge port. In this cleaning mechanism, one end of the operation member protrudes obliquely downward from the lower part of the casing, and the operation member enters the discharge port by manually pushing the operation member from the outside. Due to the entry of the operation member, the foreign matter clogged in the discharge port is removed.

JP 2007-303631 A

  By the way, the steam trap as described above is often placed on the ground as it is. In that case, there is a problem that the cleaning work by the cleaning mechanism becomes complicated. That is, since the operation member of the cleaning mechanism protrudes obliquely downward from the lower portion of the casing, the space for manually operating the operation member is reduced by placing the steam trap on the ground. Therefore, the cleaning work at the site becomes complicated.

  The technology disclosed in the present application has been made in view of such circumstances, and an object thereof is to provide a steam trap that can secure an operation space of an operation member when installed on the ground or the like.

  The technique disclosed in the present application is a steam trap including a casing, an operation member, and a leg. The casing has a main body portion and a lid portion fastened by a bolt inserted vertically from above, and has a drain outlet inside. The operating member is provided in a bar-like shape that penetrates the lower part of the casing and has an outer end pushed into the casing to enter the outlet and remove foreign matter from the outlet. The said leg part is formed in the rod shape extended in a perpendicular direction, The screw hole screwed together with the lower end of the said volt | bolt is provided in the upper end.

  The technique disclosed in the present application is a leg portion of a steam trap including a casing and an operation member. The casing has a main body portion and a lid portion fastened by a bolt inserted vertically from above, and has a drain outlet inside. The operating member is provided in a bar-like shape that penetrates the lower part of the casing and has an outer end pushed into the casing to enter the outlet and remove foreign matter from the outlet. And the leg part of the steam trap of this application is formed in the rod shape extended in a perpendicular direction, and the screw hole which screws together with the lower end of the said volt | bolt is provided in the upper end.

  According to the steam trap of the present application, since the rod-shaped leg portion extending in the vertical direction is provided on the casing, the casing is installed on the installation surface (the ground contact surface of the leg portion) by the length of the leg portion (vertical length). ) Can be arranged at intervals. Thereby, the operation space of the operation member can be secured in the lower region of the casing.

  Moreover, according to the steam trap of this application, since the leg part was screwed with the volt | bolt (bolt which fastens a main-body part and a cover part) provided in the casing, the volt | bolt originally provided is utilized. Legs can be attached. Thereby, the number of parts can be reduced.

FIG. 1 is a front view illustrating a schematic configuration of a steam trap according to the first embodiment. FIG. 2 is a left side view illustrating a schematic configuration of the steam trap according to the first embodiment. FIG. 3 is a right side view illustrating a schematic configuration of the steam trap according to the first embodiment. FIG. 4 is a plan view illustrating a schematic configuration of the steam trap according to the first embodiment. FIG. 5 is a cross-sectional view showing a schematic configuration of the steam trap according to the first embodiment, omitting legs. FIG. 6 is a front view illustrating a schematic configuration of the steam trap according to the second embodiment. FIG. 7 is a left side view illustrating a schematic configuration of the steam trap according to the second embodiment. FIG. 8 is a right side view illustrating a schematic configuration of the steam trap according to the second embodiment.

  Hereinafter, embodiments of the present application will be described with reference to the drawings. Note that the following embodiments are essentially preferable examples, and are not intended to limit the scope of the technology disclosed in the present application, applications thereof, or uses thereof.

(Embodiment 1)
A first embodiment of the present application will be described. As shown in FIGS. 1-4, the steam trap 10 of this embodiment is installed in the grounds, such as soil and sand. The steam trap 10 is provided in, for example, a steam system, and drain (condensate) generated in the system flows in, and only the drain that flows in is automatically discharged.

  The steam trap 10 of the present embodiment includes a casing 11, a cleaning mechanism 16, and a leg portion 20. The casing 11 is formed by fastening a main body portion 12 and a lid portion 13 with a plurality of (four in this embodiment) bolts 18. In the casing 11, the main body 12 is located at the upper part and the lid part 13 is located at the lower part. A drain inflow passage portion 14 and a discharge passage portion 15 are formed in the main body portion 12. The body portion 12 and the lid portion 13 are fastened with bolts 18 inserted vertically from above. That is, in the casing 11, the male screw portion 18 a (lower end) of the bolt 18 is provided in a state of protruding downward from the lid portion 13. Although not shown here, the casing 11 has a drain discharge path (discharge port) therein.

  The cleaning mechanism 16 is provided on the lid portion 13 of the casing 11. The cleaning mechanism 16 has a rod-like operation member 17 provided so as to penetrate the lower part of the casing 11 (lid portion 13). The operation member 17 is provided in a state protruding obliquely downward from the lower portion of the casing 11 (lid portion 13). The operation member 17 is configured such that the outer end thereof is manually pushed into the casing 11 and the inner end enters a discharge path (discharge port) in the casing 11. As the operating member 17 enters the discharge path, foreign substances clogged in the discharge path are removed. That is, the cleaning mechanism 16 cleans the discharge path. Detailed configurations of the casing 11 and the cleaning mechanism 16 will be described later.

  Four legs 20 are provided in the same number as the bolts 18 described above. The leg portion 20 is formed in a rod shape that extends in the vertical direction as a whole. The leg portion 20 has a columnar rod-like portion 21 extending in the vertical direction and a grounding portion 22 formed continuously at the lower end of the rod-like portion 21.

  At the upper end of the rod-shaped portion 21, a screw hole 21 a that is screwed with the male screw portion 18 a (lower end) of the bolt 18 is provided. That is, a screw hole 21 a having the vertical direction as an axis is provided on the upper end surface of the rod-shaped portion 21. The grounding part 22 is a part that contacts the ground, and is formed in a truncated cone shape that expands downward (as it approaches the ground). The leg portion 20 is attached to the casing 11 by screwing and joining the screw hole 21 a of the rod-like portion 21 with the male screw portion 18 a of the bolt 18 protruding downward from the lid portion 13.

  Detailed configurations of the casing and the cleaning mechanism will be described with reference to FIG. Note that the steam trap 30 described in FIG. 5 is slightly different in appearance from the steam trap 10 described above, but has the same main configuration and function. In FIG. 5, the bolt 18 and the leg 20 described above are omitted.

  The steam trap 30 includes a casing 31 in which a main body portion 32 and a lid portion 33 are bolted. In the casing 31, a drain inflow passage 35, a storage chamber 34, and a discharge passage 36 are formed. A spherical float 37 is arranged in the storage chamber 34 in a free state. A valve seat 38 is provided in the lid 33, and a discharge passage 39 (discharge port) that connects the storage chamber 34 and the discharge passage 36 is formed in the valve seat 38. In the steam trap 30, the drain flows from the inflow passage 35 into the storage chamber 34 and is stored. When the float 37 is separated from the valve seat 38, the discharge passage 39 of the valve seat 38 is opened and closed. When the discharge path 39 is opened, the drain in the storage chamber 34 flows into the discharge path 36 through the discharge path 39 and is discharged outside.

  The lid 33 is provided with a cleaning mechanism 40 that removes foreign matter clogged in the discharge passage 39 of the valve seat 38. The cleaning mechanism 40 includes a plug 41, operation members (first operation member 42, second operation member 43), and bimetal 46. The plug 41 is screwed coaxially with the valve seat 38 at the lid portion 33. The first operating member 42 is a rod-like member provided through the plug 41 and is screw-coupled to the plug 41 so as to advance and retreat in the axial direction (coaxial direction with the valve seat 38). The second operating member 43 is a rod-like member that covers the tip of the first operating member 42 and is provided coaxially with the valve seat 38. The plug 41 is provided with a packing 44 for sealing between the first operation member 42 and the packing 44 is fixed by screwing a pressing member 45 into the plug 41 from the outside. The bimetal 46 is a temperature responsive member provided around the first operating member 42 and the second operating member 43.

  In the cleaning mechanism 40, when foreign matter is clogged in the discharge path 39 of the valve seat 38 and the drain of the storage chamber 34 is not normally discharged, the bimetal 46 is deformed due to low temperature and the second operation member 43 is advanced. As a result, the tip of the second operation member 43 enters the discharge passage 39 of the valve seat 38, and the foreign matter in the discharge passage 39 is removed by the second operation member 43. In addition, the cleaning mechanism 40 can remove foreign matter from the discharge passage 39 manually. That is, the second operating member 43 moves forward by screwing (pushing) the first operating member 42 and moving it forward. As a result, the tip of the second operating member 43 enters the discharge path 39, and the foreign matter in the discharge path 39 is removed.

  In the steam trap having the cleaning mechanism as described above, an operation space for manually operating the cleaning mechanism is required. In other words, the steam trap requires an operation space below the casing. In this regard, in the steam trap 10 of the present embodiment, the leg portion 20 is provided at the lower portion of the casing 11 as described above. Therefore, the casing 11 is disposed at a distance from the ground (the ground contact surface of the leg 20) by the length of the leg 20 (vertical length). Thereby, the operation space of the cleaning mechanism 16 (operation member 17) is ensured in the lower area of the casing 11 (near the lower right corner in FIG. 1).

  As described above, according to the steam trap 10 of the above-described embodiment, since the rod-shaped leg portion 20 extending in the vertical direction is provided in the casing, the casing is disposed on the installation surface by the length of the leg portion (vertical length). It can arrange | position at intervals from (the ground-contact surface of a leg part). Thereby, the operation space of the cleaning mechanism 16 (operation member 17) can be ensured in the lower area of the casing. Therefore, manual operation of the cleaning mechanism 16 can be facilitated on site.

  Moreover, in the steam trap 10 of the said embodiment, since the leg part 20 was screwed together with the volt | bolt 18 (fastening the main-body part 12 and the cover part 33) provided in the casing 11, it is originally provided. The legs 20 can be attached using the bolts 18. Thereby, the number of parts can be reduced.

  Moreover, in the steam trap 10 of the said embodiment, since the leg part 20 is provided and installed in the ground, compared with the case where it installs on the ground directly, the installation attitude | position of the steam trap 10 can be stabilized. This is particularly effective when the steam trap 10 is installed on uneven ground such as soil or sand.

(Embodiment 2)
A second embodiment of the present application will be described with reference to FIGS. The steam trap 10 of the present embodiment is such that the configuration of the leg portion is changed in the first embodiment. That is, the leg part 50 of this embodiment is configured to be adjustable in length (vertical length). Here, differences from the first embodiment will be described.

  In the steam trap 10 of this embodiment, the leg part 50 is provided by screwing with the external thread part 18a (lower end) of the volt | bolt 18 similarly to the said Embodiment 1. FIG. The leg portion 50 of this embodiment includes a rod-shaped member 51 and a grounding member 52.

  The rod-shaped member 51 is a columnar member extending in the vertical direction, and has screw holes 51a at both ends. In other words, screw holes 51 a having the vertical direction as an axis are provided on the upper end surface and the lower end surface of the rod-shaped member 51. In the rod-like member 51, the screw hole 51a on the upper end side is screwed with the male screw portion 18a of the bolt 18, and the screw hole 51a on the lower end side is screwed with a grounding member 52 described later.

  The grounding member 52 is a substantially rod-shaped member that is grounded to the ground, and includes a grounding portion 53 and a male screw portion 54. The grounding portion 53 is a portion that contacts the ground, and the male screw portion 54 is continuously formed at the upper end of the grounding portion 53. The male screw portion 54 extends in the vertical direction. The grounding member 52 is connected to the rod-shaped member 51 when the male screw portion 54 is screwed into the screw hole 51 a on the lower end side of the rod-shaped member 51.

  In the leg portion 50 of this embodiment, as shown by an arrow in FIG. 6 and the like, the length of the leg portion 50 (vertical length) is changed by changing the screwing length of the male screw portion 54 of the grounding member 52 with respect to the rod-like member 51. Is adjusted). Further, the leg portion 50 is provided with a nut 55 for securely fixing the grounding member 52. The nut 55 is screwed into the male screw portion 54 of the grounding member 52 and is tightened toward the lower end surface of the rod-shaped member 51. By doing so, the grounding member 52 is securely fixed to the rod-shaped member 51.

  As mentioned above, according to the steam trap 10 of the said Embodiment 2, since it comprised so that the length (vertical direction length) of the leg part 50 could be adjusted, the casing 11 and the installation surface (the grounding surface of the leg part 50) ) Can be adjusted. Thereby, the operation space of the cleaning mechanism 16 (operation member 17) can be ensured reliably by adjusting the space | interval of the casing 11 and an installation surface according to the unevenness | corrugation degree of an installation surface, for example. Further, the steam trap 10 can be stably operated by adjusting the length of the leg portion 50 so that the casing 11 is horizontal.

  Specifically, in the leg portion 50 of the present embodiment, the rod-shaped member 51 and the grounding member 52 are connected by screwing, and the length (vertical direction) is changed by changing the screwing length of the grounding member 52 to the rod-shaped member 51. (Length) was adjusted. Therefore, the length of the leg part 50 can be adjusted easily. Other configurations, operations, and effects are the same as those of the first embodiment.

  In addition, in the leg part 50 of the said Embodiment 2, although the male thread part 54 of the grounding member 52 was screwed together in the screw hole 51a of the lower end of the rod-shaped member 51, the rod-shaped member 51 and the grounding member 52 were connected, A male screw portion may be provided at the lower end of the rod-shaped member 51 and a screw hole may be provided in the grounding member 52 so that the rod-shaped member 51 and the grounding member 52 are connected by screwing. Also in this case, the length (vertical direction length) of the leg part 50 can be adjusted by changing the screwing length of the rod-shaped member 51 with respect to the grounding member 52.

  The technique disclosed in the present application is useful for a steam trap having a cleaning mechanism that is manually operated from the outside.

DESCRIPTION OF SYMBOLS 10,30 Steam trap 11,31 Casing 12,32 Main body part 13,33 Cover part 16,40 Cleaning mechanism 17 Operation member 18 Bolt 20 Leg part 21a Screw hole 39 Discharge path (discharge port)
42 1st operation member (operation member)
43 Second operation member (operation member)
50 Leg 51 Bar-shaped member 51a Screw hole 52 Grounding member 54 Male thread

Claims (4)

The main body portion and the lid portion are fastened by a bolt inserted in the vertical direction from above, and a casing having a drain outlet inside,
A rod-like operation member provided through the lower portion of the casing and having an outer end pushed into the casing to enter the discharge port and remove foreign matter from the discharge port;
A steam trap, characterized in that it is formed in a bar shape extending in the vertical direction and has a leg portion provided at its upper end with a screw hole threadably engaged with the lower end of the bolt. The steam trap according to claim 1,
The steam trap is characterized in that the leg portion is configured to be adjustable in vertical length. The steam trap according to claim 2,
The leg portion is formed to extend in the vertical direction, the rod-like member having the screw hole at the upper end and the screw hole at the lower end, and the male screw portion to be screwed into the screw hole on the lower end side of the rod-like member. A steam trap, comprising: a grounding member having a surface. The main body portion and the lid portion are fastened by a bolt inserted in the vertical direction from above, and a casing having a drain outlet inside,
A leg portion of a steam trap provided with a rod-like operation member provided through the lower part of the casing and having an outer end pushed into the casing to enter the discharge port and remove foreign matter from the discharge port Because
A leg portion of a steam trap, which is formed in a bar shape extending in a vertical direction, and is provided with a screw hole screwed to the lower end of the bolt at the upper end.

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