JPH0550295U - Disc type steam trap - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain a compact disk-type steam trap with a large discharge capacity. [Structure] Inflow holes 10 and 11, outflow holes 13 and 15, and inflow hole 1 that connect an inlet 4 and an outlet 5 to a single valve seat member 6.
2 and the outflow hole 14 are formed. A valve disk 20 for opening and closing the inflow hole 11 and the outflow hole 13 and a valve disk 21 for opening and closing the inflow hole 12 and the outflow hole 14 are arranged in the variable pressure chamber 9.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a disk type steam trap for discharging condensed water generated in a steam piping system, and more particularly to a disk steam trap capable of discharging a large amount of condensed water. When discharging condensate from a steam piping system that generates a large amount of condensate, it is common to install multiple traps in parallel, but this requires piping equipment costs and requires a large installation space. There is inconvenience.

[0002]

[Prior Art]

 Therefore, as a disk type steam trap having a small size and a large discharge capacity, there is one disclosed in Japanese Utility Model Publication No. 48-20676. This is because a plurality of valve seat members are arranged in a valve casing having an inlet and an outlet to form a plurality of variable pressure chambers, and an inlet hole and an outlet hole that communicate the inlet and the outlet via the respective variable pressure chambers are formed. A plurality of valve discs, which are formed on each valve seat member and open and close each inflow port and each outflow port, are arranged in each variable pressure chamber, and multiple inflow holes and outflow holes are opened and closed by multiple valve discs. By doing so, the discharge capacity can be increased.

[0003]

[Problems to be solved by the device]

 However, in the structure described above, there is a limit to miniaturization because a plurality of valve seat members each having an inflow hole and an outflow hole are arranged in the valve casing. The technical problem of the present invention is therefore to obtain a smaller disk-type steam trap having a large discharge capacity.

[0004]

[Means for Solving the Problems]

 The technical means of the present invention taken to solve the above technical problem is to arrange a single valve seat member in a valve casing having an inlet and an outlet to form a variable pressure chamber, and to form an inlet and outlet. A plurality of inflow holes and outflow holes, which communicate with each other through the variable pressure chamber, are formed in the valve seat member, and a plurality of valve discs for opening and closing the respective inlet and outlet are arranged in the variable pressure chamber.

[0005]

[Action]

 The operation of the above technical means is as follows. Since a plurality of inflow holes and outflow holes are formed in a single valve seat member arranged in the valve casing, a plurality of valve seat members having inflow holes and outflow holes are also arranged in the valve casing. It can be made smaller than that of. A plurality of inflow holes and outflow holes formed in the valve seat member are opened and closed by a plurality of valve discs arranged, and the discharge capacity is increased as in the conventional case.

[0006]

【Example】

 An embodiment showing a specific example of the above technical means will be described (see FIG. 1). The lid 2 and the lid 3 are screwed to the main body 1 to form a valve casing. An inlet 4 and an outlet 5 are formed on the main body 1 on the same axis. A spherical valve seat member 6 is arranged in a substantially cylindrical space formed in the valve casing. Annular seal members 7 and 8 are arranged on the inlet 4 side and the outlet 5 side of the valve seat member 6. A variable pressure chamber 9 is formed between the valve seat member 6 and the valve casing.

The valve seat member 6 is formed with inflow holes 10, 11, 12 having one end open to the inlet 4 and the other end branched vertically to open in the center on the variable pressure chamber 8 side, and around the inflow holes 11, 12. Outlet holes 13, 14 and 15 are formed in an annular shape at one end and merge with each other and the other end opens to the outlet 5. An annular inner ring valve seat 16 is formed at an opening end on the variable pressure chamber 9 side between the inflow hole 11 and the outflow hole 13, and an annular outer ring valve seat 17 is formed around the opening end on the variable pressure chamber 9 side of the outflow hole 13. The inner ring valve seat 16 and the outer ring valve seat 17 are concentric and their upper surfaces are formed in the same plane. Similarly, an annular inner ring valve seat 18 is formed at the opening end on the variable pressure chamber 9 side between the inflow hole 12 and the outflow hole 14, and an annular outer ring valve seat 19 is formed around the opening end on the variable pressure chamber 9 side of the outflow hole 14. To form. The inner ring valve seat 18 and the outer ring valve seat 19 are concentric and their lower surfaces are formed in the same plane. Inside the variable pressure chamber 9, there are arranged a valve disc 20 which is seated on the inner ring valve seat 16 and the outer ring valve seat 17, and a valve disc 21 which is seated on the inner ring valve seat 18 and the outer ring valve seat 19.

Blocking members 22 and 23 are screwed to the lids 2 and 3, respectively. Reference numerals 24 and 25 are seal members for keeping airtightness between the lids 2 and 3, respectively. The valve discs 20 and 21 can be fixed in the closed position by screwing the shut-off members 22 and 23 respectively. The one shown in the drawing shows a state in which the shut-off member 22 puts the valve disc 20 in a free state and the shut-off member 23 fixes the valve disc 21 in the closed position.

Both the shut-off members 22 and 23 are retracted to bring both the valve discs 20 and 21 into a free state, so that the inflow hole 11 and the outflow hole 13 formed in the valve seat member 6 and the inflow hole 12 and the outflow hole are formed. Since both of the holes 14 are opened by the valve discs 20 and 21, respectively, the discharge capacity is increased. Further, by fixing one of the shut-off members 22 and 23 on one side of the valve discs 20 and 21 to the closed position, it is possible to set a normal discharge flow rate. In addition, the inlet 4 and the outlet 5 can be shut off by advancing both shutoff members 22, 23 and fixing both valve discs 20, 21 in the closed position.

[0010]

[Effect of the device]

 The present invention has the following unique effects. As described above, according to the present invention, a plurality of inflow holes and outflow holes are formed in a single valve seat member, and each inflow hole and outflow hole is opened and closed by a valve disc, so that it is compact and has a large discharge capacity. A disk type steam trap can be obtained.

[Brief description of drawings]

FIG. 1 is a sectional view of a disk type steam trap according to an embodiment of the present invention.

[Explanation of reference numerals] 1 main body 2,3 lid 4 inlet 5 outlet 6 valve seat member 9 variable pressure chamber 10,11,12 inflow hole 13,14,15 outflow hole 20,21 valve disc 22,23 blocking member

Claims (1)

[Scope of utility model registration request] 1. A variable valve chamber is formed by disposing a single valve seat member in a valve casing having an inlet and an outlet, and a valve is provided with an inflow hole and an outflow hole that communicate the inlet and the outlet through the variable pressure chamber. A disc type steam trap in which a plurality of valve discs are formed in the seat member and a plurality of valve discs for opening and closing the respective inlets and outlets are arranged in the variable pressure chamber.