JPS5532906A - Water-service installation - Google Patents

Water-service installation

Info

Publication number
JPS5532906A
JPS5532906A JP10270478A JP10270478A JPS5532906A JP S5532906 A JPS5532906 A JP S5532906A JP 10270478 A JP10270478 A JP 10270478A JP 10270478 A JP10270478 A JP 10270478A JP S5532906 A JPS5532906 A JP S5532906A
Authority
JP
Japan
Prior art keywords
water
tank
pressure
air
pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP10270478A
Other languages
Japanese (ja)
Other versions
JPS6054520B2 (en
Inventor
Tadao Tateshita
Yasuhiro Mita
Koichi Sato
Yukio Tagawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP10270478A priority Critical patent/JPS6054520B2/en
Publication of JPS5532906A publication Critical patent/JPS5532906A/en
Publication of JPS6054520B2 publication Critical patent/JPS6054520B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Reciprocating Pumps (AREA)

Abstract

PURPOSE: To supply a proper quantity of air to a pressure tank by few structural parts and all the time, in this water-service installation provided with the pressure tank.
CONSTITUTION: Under a condition that a pump 1 is stopped, water in a pressure tank 3 is pushed out and water supply is continued, only the first sluice valve 12 is opened, water in an air supply tank 7 is discharged through a drain pipe 11 and the outside air is taken into said tank 7 through a valve 10 by negative pressure generated at that time. When air 6 in the pressure tank 3 flows out with water and is insufficient, and the inner pressure reaches the pressure of the lowest limit, the pump 1 is started by means of a pressure switch 4. The water in the pressure tank 3 flows into the air supply tank 7 through a feed water pipe 5 because the first sluice valve 12 is closed and the second sluice valve 13 is opened at the same time as the starting of the pump 1. Thus, air in said tank 7 is compressed, and supplied into the pressure tank 3 through an air supply pipe 8 by pressure difference by water-level difference before and behind a check valve 9.
COPYRIGHT: (C)1980,JPO&Japio
JP10270478A 1978-08-25 1978-08-25 water supply device Expired JPS6054520B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10270478A JPS6054520B2 (en) 1978-08-25 1978-08-25 water supply device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10270478A JPS6054520B2 (en) 1978-08-25 1978-08-25 water supply device

Publications (2)

Publication Number Publication Date
JPS5532906A true JPS5532906A (en) 1980-03-07
JPS6054520B2 JPS6054520B2 (en) 1985-11-30

Family

ID=14334645

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10270478A Expired JPS6054520B2 (en) 1978-08-25 1978-08-25 water supply device

Country Status (1)

Country Link
JP (1) JPS6054520B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344741A (en) * 1979-03-22 1982-08-17 Hitachi, Ltd. Automatic water supply system
JPH0640383U (en) * 1992-10-30 1994-05-27 新潟ウオシントン株式会社 Water level control device for air chamber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344741A (en) * 1979-03-22 1982-08-17 Hitachi, Ltd. Automatic water supply system
JPH0640383U (en) * 1992-10-30 1994-05-27 新潟ウオシントン株式会社 Water level control device for air chamber

Also Published As

Publication number Publication date
JPS6054520B2 (en) 1985-11-30

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