JPH0166479U

JPH0166479U -

Info

Publication number: JPH0166479U
Application number: JP1987161307U
Authority: JP
Priority date: 1987-10-23
Filing date: 1987-10-23
Publication date: 1989-04-27

Description

[Brief explanation of the drawing]

第１図は本考案に係る自動ガス抜き装置付きダ
イヤフラムポンプを薬液注入装置に適用したフロ
ーシート、第２図は第１図に示すダイヤフラムポ
ンプのＡ部拡大断面図、第３図は本考案に係る自
動ガス抜き装置付きダイヤフラムポンプの別の実
施例における第２図に相当する断面図、第４図は
従来の自動ガス抜き装置付きダイヤフラムポンプ
を薬液注入装置に適用したフローシートで、第４
図ａ，ｂ，ｃはそれぞれ薬液を送水配管の吐出側
、吸込側ならびに開放タンクに注入する場合を示
し、第５図は第４図に示すダイヤフラムポンプの
Ｂ部拡大断面図、第６図はサイホン阻止型逆止弁
の縦断面図である。１０…自動ガス抜き装置付きダイヤフラムポン
プ、１２…ポンプ本体、１４…アダプタ、１６…
カートリツジプラグ、１８，２４…弁ボール、２
０，２６…ボールシート、２２…上段ボール弁機
構、２８…下段ボール弁機構、３０…吐出チエツ
ク弁装置、３２…吐出液体通路、３４…ガス通路
、３６…液体通路、３８…吐出配管、４４…薬液
タンク、４８…吸込配管、５０…送水ポンプ、５
１…送水配管、５２…薬液注入点、５３…開放タ
ンク、５４…ガス抜き穴、５６…サイホン阻止型
逆止弁、７６，７７…逆止弁本体、７８，８６，
９８…液体通路、８０…ボールシート、８１…逆
止弁弁室、８２…逆止弁ボール、８３…吐出口、
８４…接手、８８…ダイヤフラムシート、９０…
カバー、９２…スプリング、９４…ダイヤフラム
、９６…ダイヤフラム室、１００…自動ガス抜き
装置、２００…逆止弁装置、３００…サイホン阻
止型逆止弁装置、３１０…逆止弁部、３２０…ダ
イヤフラム弁部。 Fig. 1 is a flow sheet in which the diaphragm pump with an automatic gas venting device according to the present invention is applied to a chemical injection device, Fig. 2 is an enlarged sectional view of part A of the diaphragm pump shown in Fig. 1, and Fig. 3 is a flow sheet according to the present invention. FIG. 4 is a sectional view corresponding to FIG. 2 of another embodiment of such a diaphragm pump with an automatic gas venting device, and FIG.
Figures a, b, and c show the case where chemical liquid is injected into the discharge side, suction side, and open tank of the water supply pipe, respectively. Figure 5 is an enlarged cross-sectional view of part B of the diaphragm pump shown in Figure 4, and Figure 6 is FIG. 2 is a longitudinal cross-sectional view of a siphon prevention type check valve. 10...Diaphragm pump with automatic gas venting device, 12...Pump body, 14...Adapter, 16...
Cartridge plug, 18, 24...Valve ball, 2
0, 26...Ball seat, 22...Upper ball valve mechanism, 28...Lower ball valve mechanism, 30...Discharge check valve device, 32...Discharge liquid passage, 34...Gas passage, 36...Liquid passage, 38...Discharge piping, 44 ...Chemical solution tank, 48...Suction piping, 50...Water pump, 5
1... Water supply piping, 52... Chemical injection point, 53... Open tank, 54... Gas vent hole, 56... Siphon prevention type check valve, 76, 77... Check valve body, 78, 86,
98...Liquid passage, 80...Ball seat, 81...Check valve valve chamber, 82...Check valve ball, 83...Discharge port,
84...Joint, 88...Diaphragm sheet, 90...
Cover, 92... Spring, 94... Diaphragm, 96... Diaphragm chamber, 100... Automatic gas venting device, 200... Check valve device, 300... Siphon prevention type check valve device, 310... Check valve section, 320... Diaphragm valve Department.

Claims

[Claims for Utility Model Registration] (1) In a diaphragm pump that performs pumping action by having a diaphragm and check valve devices for suction and discharge, a gas passage extending directly above a discharge liquid passage immediately after the discharge check valve device; and a liquid passage extending in different directions, and the gas passage is provided with an automatic gas venting device for discharging the gas separated from the handled liquid, and the liquid passage is equipped with a reverse gas passage that prevents the reverse flow of the handled liquid that has been pumped. A diaphragm pump with an automatic gas venting device characterized by being equipped with a stop valve device. (2) In the diaphragm pump with automatic gas venting device described in claim 1 of the utility model registration claim,
The automatic gas venting device consists of two ball valve mechanisms, upper and lower. The upper ball valve mechanism consists of a valve ball whose specific gravity is larger than the liquid being handled and a ball seat on which this valve ball descends and seats, and the lower ball valve mechanism consists of A diaphragm pump with an automatic gas venting device consisting of a valve ball whose specific gravity is smaller than the liquid being handled, and a ball seat on which the valve ball rises and seats. (3) Scope of Utility Model Registration In the diaphragm pump with an automatic gas venting device according to either claim 1 or 2, the check valve device includes a check valve ball whose specific gravity is larger than that of the liquid to be handled, and this check valve. A diaphragm pump with an automatic gas venting device that is a ball valve mechanism consisting of a ball seat on which a valve ball descends and seats. (4) In the diaphragm pump with automatic gas venting device according to either of claims 1 or 2 of the utility model registration claim, the check valve device is a siphon prevention type check valve device having a siphon prevention mechanism. Diaphragm pump with automatic degassing device. (5) In the diaphragm pump with an automatic gas venting device described in claim 4 of the utility model registration claim,
The siphon prevention type check valve device is interposed between a check valve part and an inflow side liquid passage of this check valve part, and opens the liquid passage when the pressure of the handled liquid on the inflow side rises above a predetermined value. A diaphragm pump with an automatic gas venting device comprising a diaphragm valve portion that can freely close the liquid passage when the pressure falls below a predetermined value.