HEATING MEDIUM PIPING SYSTEM OR HEATING MEDIUM CARRIER SYSTEM IN HEATING MEDIUM PIPING SYSTEM

• Main Author: NIIMURA KOICHI
• Format: Patent
• Language: English; Japanese
• Published: 06.04.2017
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; VENTILATING; WEAPONS

PROBLEM TO BE SOLVED: To provide a heating medium piping system for preventing a backflow of a heating medium in the heating medium piping system without using a flowmeter.SOLUTION: In a heating medium piping system, a heat source machine loop A and air conditioner piping parts B of a plurality of systems are connected by a heat carrier loop C. The heating medium piping system comprises: a thermometer 14 that is provided in a heating medium circulation conduit line 12 of the heat carrier loop C; a thermometer 15 which is provided in the heating medium circulation conduit line 12 at a downstream side in a heating medium flowing direction at a connection position between the heating medium circulation conduit line 12 and a heating medium outgoing conduit line 4 of the heat source machine loop A; an instruction controller 16 which receives a temperature signal of a temperature (Ts) of a heating medium flowing in the heating medium circulation conduit line 12 measured by the thermometer 15 and outputs the temperature signal to a Low selector 17; and a programmable controller 18 which calculates a temperature differential ΔT (Tr-T1) between a return temperature Tr of the heating medium circulation conduit line 12 and an entrance temperature T1 of the heating medium circulation conduit line 12 and outputs inverter output that is calculated based on the temperature differential ΔT to the Low selector 17.SELECTED DRAWING: Figure 1 【課題】流量計を用いることなく熱媒体配管システムにおける熱媒体の逆流を防止する熱媒体配管システムを提供する。【解決手段】熱源機ループＡ及び複数系統の空調機配管部Ｂは熱搬送ループＣにより接続されている熱媒体配管システムにおいて、熱搬送ループＣの熱媒体循環管路１２に設けられた温度計１４と、熱媒体循環管路１２と熱源機ループＡの熱媒体往管路４との接続位置の熱媒体流れ方向下流側の熱媒体循環管路１２に設けられた温度計１５と、温度計１５により熱媒体循環管路１２を流れる熱媒体の温度（Ｔｓ）の温度信号を受け、温度信号をＬｏｗセレクタ１７に出力する指示調節計１６と、熱媒体循環管路１２の戻り温度Ｔｒと熱媒体循環管路１２の入口温度Ｔ１の温度差分ΔＴ（Ｔｒ−Ｔ１）を演算し、温度差分ΔＴに基づき演算したインバータ出力をＬｏｗセレクタ１７に出力するプログラマブルコントローラー１８とからなる熱媒体配管システムである。【選択図】図１