JPH046359A

JPH046359A - Dehumidifier

Info

Publication number: JPH046359A
Application number: JP10760390A
Authority: JP
Inventors: Yoshiro Osada; 長田　義郎
Original assignee: Hitachi Ltd
Current assignee: Hitachi Ltd
Priority date: 1990-04-25
Filing date: 1990-04-25
Publication date: 1992-01-10

Abstract

PURPOSE:To utilize a large amount of heat, which is generated when air is compressed, as power required for operation of a humidifier without wasting the heat for reducing the power consumption by providing a refrigerant heater by which compression heat of a compressor is recovered. CONSTITUTION:High temperature air compressed and delivered by an unlubricated single stage screw compressor 3 driven by a motor 1 is immediately led to a heater 6 of an absorption type refrigerating machine as a heat source. After passing through the heater 6, the air passes through an after cooler 4 and a gas-water separator 5, which are conventional equipment as an air compressing apparatus, and cooled down to remove moisture. After that, the air is cooled further by an evaporator 8 of the absorption type refrigerating machine, and the water produced there is removed by a gas-water separator 12 to dry the air. On the other hand, the refrigerant evaporates in the heater 6 and flows into a condenser 7 is which refrigerant is cooled and liquefied. Then, the liquid refrigerant absorbs heat in the evaporator 8 and cools the delivery air. On the other hand, the lean solution, which becomes low in the concentration of the refrigerant, is sent to an absorber 11 after passing through the heater 6 and a heat exchanger 9, absorbs the refrigerant coming from the evaporator 8, and is returned to the heater 6 by a pump 10.

Description

【発明の詳細な説明】〔産業上の利用分野〕本発明は、空気圧縮機の除湿装置に使用する吸収式冷却
器の加熱装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a heating device for an absorption cooler used in a dehumidifying device for an air compressor.

[Conventional technology]

従来の装置では、空気圧縮機と除湿装置はそれぞれ独立
した装置になっていた。In conventional equipment, the air compressor and dehumidifier were each independent devices.

除湿装置の省エネ方法としてインバータを使用する方法
を採用した空気圧縮機用の提案がある（特願平１−１８
０３６４号明細書「インバータ塔載形エアードライヤ」
）。There is a proposal for an air compressor that uses an inverter as an energy-saving method for dehumidifying equipment (Japanese Patent Application No. 1992-18).
Specification No. 0364 “Inverter tower-mounted air dryer”
).

[Problem to be solved by the invention]

本発明の目的は、空気を圧縮するときに発生する大量の
熱を排熱とせず、除湿器の運転に必要な動力として利用
し、これを軽減することにある。An object of the present invention is to reduce the amount of heat generated when compressing air by using it as the power necessary for operating a dehumidifier instead of waste heat.

[Means to solve the problem]

上記目的を達成するために、本発明は従来の冷媒ガスを
電動機で圧縮する方式の冷却器から、吸収式の冷却器を
使用する除湿器に変更し、吸収式冷凍器の加熱源を空気
圧縮機にした。In order to achieve the above object, the present invention changes from a conventional cooler that compresses refrigerant gas using an electric motor to a dehumidifier that uses an absorption type cooler, and uses air compression as the heating source for the absorption type cooler. I took advantage of it.

[Effect]

無給油式の空気圧縮機の吐出し空気温度は、吐出し圧力
が７　ｋｇ／ｄＧで２５０℃程度になるので、この高温
を利用し、冷媒の加熱を行って除湿装置を運転し、従来
は排熱として処理していた熱をエネルギとして再利用す
ることができる。The discharge air temperature of an oil-free air compressor is approximately 250℃ at a discharge pressure of 7 kg/dG, so this high temperature is used to heat the refrigerant and operate the dehumidifier. Heat that was previously treated as waste heat can be reused as energy.

〔Example〕

本発明の実施例を第１図により説明する。 An embodiment of the present invention will be explained with reference to FIG.

本実施例は電動機１で駆動される無給油式スクリュー段
圧縮機３で、圧縮により高温になっている吐出空気を、
ただちに、吸収式冷凍器の加熱器６に導き、その熱源と
する。吐出空気は、ここを通過後、空気圧縮機装置とし
て一般的な後部冷却器４．気水分離器５を通り、冷却さ
れ水分を除去される。その後、更に、吸収式冷凍器の蒸
発器８で、更に冷却され、ここで発生する水分を気水分
離器１２で除去し、乾燥空気とする。This embodiment is an oil-free screw stage compressor 3 driven by an electric motor 1, and the discharge air, which has become high temperature due to compression, is
It is immediately led to the heater 6 of the absorption refrigerator and used as its heat source. After passing through this, the discharged air is transferred to a rear cooler 4. which is common in air compressor equipment. It passes through a steam-water separator 5, where it is cooled and moisture is removed. Thereafter, the air is further cooled in an evaporator 8 of an absorption refrigerator, and moisture generated therein is removed in a steam separator 12 to produce dry air.

一方、加熱器６では冷媒が蒸発し、凝縮器７に流入し、
ここで冷却された液体になったのち、蒸発器８で吸熱し
、吐出空気を冷却する。一方、冷媒濃度の薄くなった溶
液は加熱器６から熱交換器９を通り、吸収器工１へ送ら
れ、蒸発器８からの冷媒を吸収し、ポンプ１０で加熱器
６に戻される。On the other hand, the refrigerant evaporates in the heater 6 and flows into the condenser 7,
After it becomes a cooled liquid, it absorbs heat in the evaporator 8 and cools the discharged air. On the other hand, the solution with a reduced concentration of refrigerant is sent from the heater 6 through the heat exchanger 9 to the absorber 1, absorbs the refrigerant from the evaporator 8, and is returned to the heater 6 by the pump 10.

〔Effect of the invention〕

本発明によれば、圧縮機が発生する熱を利用し、冷却器
を運転することができるので、運転動作を節減すること
ができる。According to the present invention, the heat generated by the compressor can be used to operate the cooler, so that the amount of operation can be reduced.

[Brief explanation of the drawing]

第１図は本発明の一実施例のブロック図である。１・・・電動機、２・・・吸入フィルタ、３・・・圧縮
機、４・・・後部冷却器、５・・・気水分離器、６・・
・加熱器、７・・・凝縮器、８・・・蒸発器、９・・・
熱交換器、１０・・・ポンプ。FIG. 1 is a block diagram of one embodiment of the present invention. 1... Electric motor, 2... Suction filter, 3... Compressor, 4... Rear cooler, 5... Steam water separator, 6...
- Heater, 7... Condenser, 8... Evaporator, 9...
Heat exchanger, 10...pump.

Claims

[Claims] 1. In an absorption air cooler including an air compressor, an evaporator, a condenser, and a heater, a refrigerant heater is provided to recover compression heat of the air compressor. A dehumidifier featuring: