JPS6059043U

JPS6059043U - Air-cooled heat pump chilling unit

Info

Publication number: JPS6059043U
Application number: JP15052283U
Authority: JP
Inventors: 敏彦山中
Original assignee: 三菱重工業株式会社
Priority date: 1983-09-30
Filing date: 1983-09-30
Publication date: 1985-04-24

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は空冷ヒートポンプチリングユニットの冷媒系統
の一例を示す系統図、第２図は従来例を示す回路図、第
３図は同側の動作を示す流れ図、第４図は本考案の一実
施例を示す回路図、第５図は本実施例の動作を示す流れ
図、第６図は本実施例の作用を説明するための時間対圧
力、電流の特性を示す特性図である。１・・・圧縮機、２・・・切換弁、３・・・利用側水熱
交換器（エバポレーター）、４・・・逆止弁、５・・・
暖房用キャピラリ、６・・・室外熱交換器、７・・・ア
キュームレータ、８・・・逆止弁、９・・・冷房用キャ
ピラリー、１０・・・室外ファンモータ、２′・・・切
換弁２の制御用の電磁接触器、１０′・・・切換弁２の
論御用の電磁接触器、１１′・・・デフロスト制御器接
点、Ａ・・・デフロスト用電磁接触器、Ｔ□・・・デフ
ロスト用タイマー、Ｔ２・・・切換弁２の遅延タイマ。第３図１第４図 −Ｎン？ＳFig. 1 is a system diagram showing an example of the refrigerant system of an air-cooled heat pump chilling unit, Fig. 2 is a circuit diagram showing a conventional example, Fig. 3 is a flow chart showing the operation of the same side, and Fig. 4 is an implementation of the present invention. FIG. 5 is a flowchart showing the operation of this embodiment, and FIG. 6 is a characteristic diagram showing the characteristics of time versus pressure and current to explain the operation of this embodiment. 1...Compressor, 2...Switching valve, 3...Using side water heat exchanger (evaporator), 4...Check valve, 5...
Heating capillary, 6...Outdoor heat exchanger, 7...Accumulator, 8...Check valve, 9...Cooling capillary, 10...Outdoor fan motor, 2'...Switching valve 10'...Magnetic contactor for controlling switching valve 2, 11'...Defrost controller contact, A...Magnetic contactor for defrost, T□... Defrost timer, T2...Delay timer for switching valve 2. Figure 3 1 Figure 4 - N? S

Claims

[Scope of utility model registration request]

An air-cooled heat pump chilling unit equipped with a reverse cycle defrost mechanism, characterized in that the air-cooled heat pump chilling unit is equipped with a delay mechanism that delays switching of a cycle switching valve for a certain period of time after the end of defrost operation.