CN2163926Y

CN2163926Y - Floating ball drainage valve

Info

Publication number: CN2163926Y
Application number: CN 93221559
Authority: CN
Inventors: 常泽文
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-08-14
Filing date: 1993-08-14
Publication date: 1994-05-04
Anticipated expiration: 2003-08-14

Abstract

The utility model discloses a floating ball drainage valve, which is composed of a valve cover, a valve body, a floating ball, a valve core, a conduit, a blow off end plug, etc. The utility model has the characteristics of simple structure, convenient maintenance, and good steam blocking and draining performance; the opening degree of the valve core can be automatically adjusted by the quantity of condensing water, the serial products can be formed easily, and the utility model is a steam drainage valve which is worth popularizing and using.

Description

Floating ball drainage valve

The utility model relates to a kind of float ball type steam drain valve.

Current, a kind of 3 rest Ball float steam traps are arranged, mainly by valve body, sphere baffle plate, metal ball float, valve seat, three bearings, body wall conduit and blowdown plugs etc. are formed up and down.During this drain valve proper functioning, when discharging condensed steam water, also spray a certain amount of steam.Reason is: the import and export of this drain valve are positioned on the valve, and valve seat places valve wall bottom, and valve pocket directly communicates with the external world by valve seat central aperture and sidewall conduit.During drain valve work, after water of condensation enters from the import of valve, dirty through the hole that is arranged on the sphere plate washer of valve pocket top along the valve wall, valve pocket bottom water level is raise, the metal ball float leaves the bearing levitating, and a part of water of condensation dependence self pressure is discharged through the outlet of sidewall conduit and valve from the valve seat aperture.Because the straight-through atmosphere of the valve pocket of this drain valve, the water of condensation that is higher than the valve seat aperture can not form water seal in the sidewall conduit, so can not play the effect of block steam and drain water.

The utility model is intended to overcome the shortcoming of prior art, and provide a kind of simple in structure, life-span long, can play good block steam and drain water effect and easily form the float ball type steam drain valve of series product.

The utility model is taked following measure on the basis of the existing Ball float steam trap of being made of valve body, ball float, valve seat and blowdown plug etc.

(1), the import and export of drain valve is separately positioned on upper and lower, valve gap and the valve body releasable connection of valve body.

(2), with ball float and the spool releasable connection of forming by inverted cone and concentric column.

(3), conduit with the valve body releasable connection is set, the top endoporus of conduit cooperates with the spool cylndrical surface, and the conduit middle part is provided with the valve seat with the spool cone match, and valve seat top catheter wall has two above weep holes in the valve body bottom center.

After taking above-mentioned measure, the utility model Ball float steam trap has following characteristics:

(1), simple in structure, easy to maintenance.

(2), because spool work the time is suspended in the water and the valve seat collision, it is removable adding upper valve core and conduit, has prolonged the working life of drain valve greatly.

(3), because valve pocket communicates with the external world by the spool that is connected with ball float, and how much adjusted automatically the breakdown degree of spool by condensing capacity, the discharge of water of condensation is effectively controlled, and has stoped the discharge of steam simultaneously.

(4), according to the different pressure reduction and the condensing capacity of steam heating equipment, only need to change the specification of spool and supporting conduit, can form series product.

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Fig. 1 is the utility model off working state figure.Fig. 2 is the utility model working state figure.Among Fig. 1-2: 1-valve gap, 2-valve body, 3-ball float, 4-spool, 5-conduit, 5a-weep hole, 5b-valve seat, 6-blowdown plug, A-steam and water of condensation import, the outlet of B-water of condensation.

Referring to Fig. 1: this Ball float steam trap is not when working, because the deadweight of spool 4 adds the weight of upper floating ball 3, spool dropped on for 4 times on the valve seat 5b in the middle of the conduit 5.

Referring to Fig. 2: after this Ball float steam trap was started working, water of condensation was dirty along the valve pocket inwall from import A, and valve pocket bottom water level is raise gradually, and water slowly increases the buoyancy of ball float 3.When buoyancy increases to greater than the ball float 3 weight sum with spool 4, the water of condensation in the spool 4 that links into an integrated entity with ball float 3 5b that promptly lifts off a seat, this moment valve pocket is discharged through outlet B from spool 4 and the gap of valve seat 5b by two the above weep hole 5a in conduit 5 middle parts.How much adjusted automatically the breakdown degree of this Ball float steam trap spool 4 is by condensing capacity: within the specific limits, water of condensation is many more, and ball float 3 floats highly more, and spool 4 is big more with the gap of valve seat 5b, and the water of condensation of discharge is also many more, and vice versa.Because effective control that 4 pairs of water of condensation of spool are discharged, the steam in the valve pocket can not let out, and has obtained good block steam and drain water effect.The top endoporus of conduit 5 cooperates with the cylndrical surface of spool 4, guaranteed spool 4 with ball float 3 rise fall steadily.

Claims

1, a kind of Ball float steam trap, contain valve body (2), ball float (3), valve seat (5b) and blowdown plug (6), of the present utility model being characterised in that: the import A of valve and outlet B are separately positioned on the upper and lower of valve body (2), valve gap (1) and valve body (2) releasable connection, ball float (3) and spool (4) releasable connection of being made up of inverted cone and concentric column, valve body (2) bottom center is provided with the conduit (5) of same valve body (2) releasable connection.

2, Ball float steam trap according to claim 1, it is characterized in that, the top endoporus of conduit (5) cooperates with the cylndrical surface of spool (4), the middle part of conduit (5) is provided with the valve seat (5b) with the cone match of spool (4), and valve seat (5b) top catheter wall has two above weep holes (5a).