JPH08271087A - Cold-heat source apparatus - Google Patents

Cold-heat source apparatus

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Publication number
JPH08271087A
JPH08271087A JP9963095A JP9963095A JPH08271087A JP H08271087 A JPH08271087 A JP H08271087A JP 9963095 A JP9963095 A JP 9963095A JP 9963095 A JP9963095 A JP 9963095A JP H08271087 A JPH08271087 A JP H08271087A
Authority
JP
Japan
Prior art keywords
steam
water
cold
boiler
hot water
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.)
Pending
Application number
JP9963095A
Other languages
Japanese (ja)
Inventor
Tadaaki Abe
Takanori Torikai
忠明 阿部
孝則 鳥飼
Original Assignee
Ebara Boiler Kk
荏原ボイラ株式会社
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 Ebara Boiler Kk, 荏原ボイラ株式会社 filed Critical Ebara Boiler Kk
Priority to JP9963095A priority Critical patent/JPH08271087A/en
Publication of JPH08271087A publication Critical patent/JPH08271087A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To obtain a cold-heat source apparatus which can supply steam and hot-water while supplying cold-water (warm-water).
CONSTITUTION: A cold-heat source apparatus is a combined unit of a steam boiler 1, steam type water cooling/heating device 2, a hot-water supply heat exchanger, a drain recovery tank 4 and additional devices. The capacity of the steam boiler 1 is at least the rated steam consumption of the steam type water cooling/heating device 2 and steam drain inside the apparatus and from a plant is recovered to reuse it as boiler feed water and allow the apparatus to supply cold-water or warm-water, hot-water and steam at the same time.
COPYRIGHT: (C)1996,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】本発明は、冷水又は温水、給湯及び蒸気が同時に供給できる冷熱源装置に関するものである。 The present invention relates to a cold or hot water, hot water and steam is related to the cold heat source device capable of simultaneously supplying.

【0002】 [0002]

【従来の技術】冷水(温水)、蒸気及び給湯は、空気調和機や一般産業用の冷熱源として広く利用されている。 BACKGROUND ART cold water (hot water), steam and hot water are widely used as a cold source for the air conditioner and general industries.
従来、これらの冷熱源(冷水又は温水、蒸気、給湯)を利用する場合には、特開昭48−9349号公報に記載されているように、蒸気ボイラから発生する蒸気の吸収冷凍機での利用(冷房負荷)及び蒸気負荷(暖房負荷) Traditionally, these cold source (cold or hot water, steam, hot water) when utilizing, as disclosed in JP-A-48-9349, the steam generated from the steam boiler at the absorption chiller use (cooling load) and steam load (heating load)
としての利用を、制御弁により季節によって切り換えて利用する方法が通例であった。 The use as a method utilizing switching seasonally was usually by a control valve.

【0003】 [0003]

【発明が解決しようとする課題】しかしながら、この方法では、冷房負荷又は暖房負荷(蒸気)と給湯の利用は可能であるが、冷房負荷と暖房負荷(蒸気)と給湯の同時利用は不可能であった。 [SUMMARY OF THE INVENTION However, in this method, although the use of the cooling load or heating load and (steam) water heater can be, simultaneous use of the cooling load and the heating load (steam) water heater is not possible there were.

【0004】ユニット化された冷熱源装置から、冷水(温水)を取り出しながら蒸気及び給湯を同時に供給可能となれば、例えばホテルでは冷暖房用の冷水(温水)、給湯及び厨房用の蒸気が同時に供給できるメリットは大きく、用途は広がるものと考えられる。 [0004] unitized cold source device, if at the same time capable of supplying steam and hot water while taking out cold water (hot water), for example, supply the hotel cold water for heating and cooling (hot water), steam for hot water supply and kitchen simultaneously can benefit greatly, applications is considered to spread. 本発明は上述の事情に鑑みなされたもので、冷水(温水)、蒸気及び給湯を同時に供給できるユニット化された冷熱源装置を提供することを目的とする。 The present invention has been made in view of the above circumstances, and an object thereof is to provide a cold water (hot water), cold heat source device which is unitized steam and hot water can be supplied at the same time.

【0005】 [0005]

【課題を解決するための手段】上述した目的を達成するため本発明は、蒸気ボイラ、蒸気式冷温水機、給湯用熱交換器、ドレーン回収タンク及び付帯装置を集合してユニット化した装置であって、前記蒸気ボイラの容量を蒸気式冷温水機の定格蒸気消費量以上とし、更に装置内及びプラントの蒸気ドレーンをボイラ給水として回収再利用し、冷水又は温水、給湯及び蒸気を同時に供給できるようにしたことを特徴とするものである。 Means for Solving the Problems The present invention for achieving the above object, a steam boiler, steam chiller, hot water supply heat exchanger, a drain recovery tank and accessory devices in apparatus unitized collectively there are, the capacity of the steam boiler and above the rated steam consumption of the steam chiller further recovered and reused a vapor drain of device and plant as boiler feed water, can be supplied cold or hot water, the hot water and steam at the same time it is characterized in that so.

【0006】 [0006]

【作用】本発明は、蒸気式冷温水機に必要な蒸気量以上の蒸気を発生させる容量を有した蒸気ボイラと、蒸気式冷温水機、蒸気利用の給湯用熱交換器、ドレーン回収タンク及び付帯装置を集合してユニット化した装置である。 DETAILED DESCRIPTION OF THE INVENTION The present invention, a steam boiler having a capacity to generate steam amount or more of the steam required for the steam chiller-heater, steam chiller, hot water heat exchanger of the steam use, drain the recovery tank and a unitized apparatus by assembling the accessory device. ボイラの発生蒸気は、蒸気式冷温水機と給湯用熱交換器へ供給すると共に装置外にも供給し、それらの蒸気ドレーンを回収し省エネルギを実現する。 Generating steam boiler, also fed to the outside of the apparatus to supply to the steam chiller and hot water supply heat exchanger, their vapor drain realizing the recovered energy saving. 蒸気ボイラ、 Steam boiler,
蒸気式冷温水機等の各機器は、共通ベース上に配置されている。 Each devices such as steam chiller is arranged on a common base. また、装置全体を化粧カバーでコンパクトに一体化し、冷熱源(冷水又は温水、給湯、蒸気)の同時発生(取り出し)が可能で、低NOxボイラを組み合わせることによりNOxの発生も少ないクリーンな冷熱源装置とすることができる。 Further, integrated in a compact entire device with the decorative cover, a cold source (cold or hot water, hot water, steam) concurrent (extraction) is possible, even less clean cold source generation of NOx by combining low NOx boiler it can be a device.

【0007】 [0007]

【実施例】以下、本発明に係る冷熱源装置の実施例を図面を参照して説明する。 EXAMPLES Hereinafter, an embodiment of the cold heat source apparatus according to the present invention with reference to the drawings. 図1は本発明の全体構成を示す斜視図であり、図2は本発明のフローシートである。 Figure 1 is a perspective view showing the overall configuration of the present invention, FIG. 2 is a flow sheet of the present invention.

【0008】図1において、ボイラ1、蒸気式冷温水機2、給湯用熱交換器3、ドレーン回収タンク4、軟化器(図示せず)等は共通ベース6上に配置されている。 [0008] In FIG. 1, a boiler 1, steam chiller 2, the hot water supply heat exchanger 3, the drain recovery tank 4, softeners (not shown) or the like are arranged on a common base 6. これらの各機器は共通ベース6上にコンパクトに配置されており、全体は化粧カバー7で覆われている。 Each of these devices are compactly arranged on a common base 6, the whole is covered with decorative cover 7. 化粧カバー7には、各配管用接続口、排ガス出口、燃焼用空気取入口、点検孔等が適所に設けられている。 The decorative cover 7, each piping connection port, an exhaust gas outlet, the combustion air inlet, inspection hole or the like is provided in place.

【0009】図2において、本装置に供給されるボイラ給水は軟化器5からドレーン回収タンク4に供給される。 [0009] In FIG. 2, the boiler feed water supplied to the apparatus is supplied from softener 5 to the drain recovery tank 4. ドレーン回収タンク4には、蒸気式冷温水機2の蒸気ドレーン11A、給湯用熱交換器3の蒸気ドレーン1 To drain the recovery tank 4 is vapor drain 11A of the steam chiller 2, vapor drain 1 of the hot-water heat exchanger 3
1B及びプラント側の蒸気ドレーン11Cが回収される。 Vapor drain 11C of 1B and plant side is recovered. ボイラ1への給水量がドレーン回収量より多い場合には、軟化器5より一部給水され、蒸気ドレーンと混合、加温されてボイラ1に供給される。 If the amount of water supplied to the boiler 1 is larger than the drain recovery amount, water is supplied partially from the softener 5, mixed with the vapor drain, is heated is supplied to the boiler 1. また、ボイラ1 In addition, the boiler 1
への給水量が回収量と同一の場合は、軟化器5よりの給水はなくて運転される。 Amount of water supplied to the case of identical recovery amount is operated without water supply of the softening device 5.

【0010】ドレーン回収により給水温度は上昇する。 [0010] The water supply temperature by the drain recovery is increased.
給水ポンプ21のキャビテーション発生を防止するために、図1に示すようにドレーン回収タンク4の位置は高くし、下部には付属機器を挿入しコンパクトにしている。 In order to prevent cavitation of the water supply pump 21, the position of the drain recovery tank 4 as shown in FIG. 1 is increased, and a compact and insert the attachment device is at the bottom. 図2に示すように、ボイラ1で発生した蒸気12 As shown in FIG. 2, the steam generated in the boiler 1 12
は、主蒸気配管8から蒸気調整弁10を経由して蒸気式冷温水機2に供給されるとともに電磁弁17を経由して給湯用熱交換器3及びプラントに各々分岐供給される。 It is respectively branched supplied from the main steam pipe 8 to the heat exchanger 3 and the plant for hot water supply via a solenoid valve 17 with via the steam control valve 10 is supplied to the steam chiller-heaters 2.
蒸気式冷温水機2からは冷水(温水)13が、また給湯用熱交換器3からは給湯14が、更にボイラ1からは蒸気12が外部に供給される。 Cold water from the steam chiller 2 (hot water) 13, also hot water 14 from the hot water supply heat exchanger 3 is supplied steam 12 to the outside further from the boiler 1.

【0011】本発明の冷熱源装置は、ボイラ1の容量が蒸気式冷温水機2に必要な蒸気量以上であれば、ボイラ1と蒸気式冷温水機2及び給湯用熱交換器3の容量を任意の組み合わせで構成することができる。 [0011] cold source apparatus of the present invention as long capacity of the boiler 1 is more amount of steam required for steam chiller-heater 2, the capacity of the boiler 1 and the steam chiller 2 and the hot water supply heat exchanger 3 it can be configured in any combination. ボイラ1から発生する蒸気12は、主蒸気配管8から各部に供給されるが、制御は次のように行う。 Vapor 12 generated from a boiler 1 is supplied to each portion from the main steam pipe 8, the control is performed as follows. 蒸気式冷温水機2に供給される蒸気量は、温度検出器15により冷水(温水)1 Steam amount supplied to the steam chiller-heater 2, the cold water by the temperature detector 15 (hot water) 1
3の温度を検出しながら蒸気調整弁10の開度を制御し調節される。 While detecting the third temperature is adjusted by controlling the opening degree of the steam regulating valve 10. また給湯用熱交換器3に供給される蒸気量は、サーモスタット16により給湯14の温度を検出しながら、電磁弁17を開閉し調節される。 The amount of steam supplied to the hot water supply heat exchanger 3, while detecting the temperature of the hot water supply 14 by the thermostat 16 is adjusted by opening and closing the solenoid valve 17. なお、ボイラ1には薬注タンク20内の薬液が薬注器19により注入される。 Note that the boiler 1 drug solution in the chemical feed tank 20 is injected by the chemical feeding, chemical dosing unit 19.

【0012】ボイラ1から発生する蒸気12は、主蒸気配管8から各部に供給される。 [0012] Steam 12 generated from the boiler 1 is supplied to each portion from the main steam pipe 8. 蒸気量の制御は、予め負荷を加味したボイラ容量の選定を行うことにより特別なことは不要である。 Control of the steam amount is not required special that by performing the selection of boiler capacity in consideration of the preload. 但し、蒸気の過負荷を防止するために、図2に示すように主蒸気配管8にオリフィス9を挿入し蒸気量を制限することができる。 However, in order to prevent overloading of the steam, it is possible to limit the amount of steam by inserting an orifice 9 in the main steam pipe 8 as shown in FIG. また図3に示すような制御方法が可能である。 Also it is possible to control method shown in FIG. 図3(a)はフローシート、図3(b)は調整弁の開度を示す図である。 3 (a) is a diagram showing the opening of the flow sheet, FIG. 3 (b) control valve. 図3に示す例においては、主蒸気配管8に主調整弁18を設け、主蒸気配管8からの蒸気を、蒸気12と蒸気調整弁10へ配分するが、蒸気調整弁10の開度信号により主調整弁18の開度を調整し、給湯用熱交換器3及び蒸気負荷12へ供給する蒸気量を制御する。 In the example shown in FIG. 3, the main control valve 18 provided in the main steam pipe 8, the steam from the main steam pipe 8 will be distributed to the vapor 12 and vapor control valve 10, the opening signal of the steam control valve 10 and adjusting the opening of the main control valve 18 to control the amount of steam supplied to the hot water heat exchanger 3 and the steam load 12.

【0013】冷熱源装置は、高効率ボイラの組み合わせが可能であること及び蒸気ドレーンの回収を行い、省エネルギ効果を高めている。 [0013] cold source apparatus performs the and recovery of vapor drain combinations are possible high efficiency boilers, to enhance the energy saving effect. 本発明の具体例の1例を説明する。 Illustrating an example embodiment of the present invention. 冷熱源装置は次の構成からなる。 Cold heat source device comprises the following configuration. ボイラ:換算蒸発量2000kg/H(例えば3位置制御、ボイラ効率92%) 蒸気式冷温水機:消費換算蒸発量540kg/H 給湯式熱交換器:消費換算蒸発量300kg/H 蒸気負荷1000kg/H、ドレーン回収なしの場合の装置効率はボイラ効率と同一で約92%である。 Boiler: Convert evaporation of 2000 kg / H (e.g., three-position control, boiler efficiency 92%) steam chiller: consumption terms evaporation amount 540 kg / H hot water heat exchanger: consumption terms evaporation amount 300 kg / H steam load 1000 kg / H apparatus efficiency when no drain recovery is about 92% identical to the boiler efficiency. 蒸気負荷500kg/H、蒸気式冷温水機での蒸気消費量500kg/H(ドレーン回収される)の場合の装置効率は、ドレーン回収によりボイラ給水温度が高くなることによりボイラ効率は1〜2%低下するが、ドレーン回収による省エネルギ効果が約6%あるので、装置効率としてはボイラ効率よりも約4%高くできる。 Device efficiency when the steam load 500 kg / H, steam consumption in the steam chiller-heater 500 kg / H (drained recovered), the boiler efficiency is 1-2% by boiler feed water temperature increases by drain recovery Although reduced, because energy saving effect by the drain recovery is about 6%, it can be about 4% higher than the boiler efficiency as a device efficiency. ,のように、ドレーン回収により高い装置効率を達成できる。 , Like, you can achieve high device efficiency drain recovery. また、装置間の配管は全て化粧カバー7内に挿入しているので、従来の単体機器の組み合わせに比較して配管が短くでき、放熱損失を少なくできる。 Further, since the insertion into the pipe all the decorative cover 7 between devices, as compared to the combination of a conventional single equipment piping it can be shortened, thereby reducing the heat radiation loss.

【0014】蒸気式冷温水機2の起動時には、定格蒸気量以上の蒸気が必要となる。 [0014] During startup of the steam chiller-heater 2, it is required rated steam amount or more of steam. 従来の直火式冷温水機では、起動時の燃焼量を定格時よりも増加することは制御上難しく、起動方式をスロースタートにし、起動時に定格燃焼量以上の負荷がかかるのを防止している。 In a conventional direct-fired chiller-heater, to increase than the rated combustion amount of startup control on difficult and slow start starting method, to prevent the load from being applied exceeding the rated combustion amount at start there. この為、起動時間が長くなる欠点がある。 For this reason, there is a drawback that start-up time is longer. しかし、本発明においては、蒸気式冷温水機2で必要な定格蒸気量以上のボイラ1を組み合わせているので、起動時に十分な蒸気を供給できるため、起動時間が短縮できる。 However, in the present invention, since the combination of the rated steam amount or more of the boiler 1 required steam chiller-heater 2, it is possible to supply sufficient steam at startup can be shortened start-up time.

【0015】例えば夏期のホテルにおける冷熱源は、朝・夕は厨房での蒸気負荷、日中は冷房のための冷房負荷、夜間はシャワー等の給湯負荷と、負荷が分散され、 [0015] For example, the low-temperature heat source in the summer of the hotel in the morning and evening the steam load in the kitchen during the day cooling load for cooling at night and hot water supply load such as a shower, the load is distributed,
冷熱源装置の稼動率が均一化されボイラ負荷の平準化が計られる。 Operating rate is homogenized leveling boiler load of cold source device is scaled. 冬期の場合も、暖房負荷パターンが冷房の場合とやや異なるがほぼ同じ傾向にある。 In the case of winter, heating load pattern is slightly different in the case of cooling, but at about the same trend.

【0016】以上のように冷水(温水)、給湯および蒸気を同時に取り出せる冷熱源装置は、負荷条件によっては組み合わせボイラ以上の装置効率が得られ、稼動率の均一化およびボイラ負荷の平準化が可能である。 The above cold source device extractable cold water (hot water), the hot water and steam at the same time as the above device efficiency combined boiler obtained by the load conditions, can be homogenized and leveling boiler load utilizations it is.

【0017】 [0017]

【発明の効果】以上説明したように本発明によれば、以下に列挙する効果が得られる。 According to the present invention as described in the foregoing, effects listed can be obtained as follows. 1)冷水(温水)、給湯および蒸気の同時取り出しが単一装置で可能である。 1) cold water (hot water), simultaneous extraction of hot water and steam can be a single device. 2)直火式冷温水機の効率よりも高い高効率ボイラの組み合わせが可能なので、装置効率が向上する。 2) Since the possible combinations of high efficiency boiler than the efficiency of direct-fired chiller-heater, thereby improving the device efficiency. 3)蒸気式冷温水機と給湯用熱交換器及びプラント側の蒸気ドレーンが回収可能であるため、装置効率が高くなり、また補給水は必要最低量ですむ。 3) for vapor drain steam chiller and hot water supply heat exchanger and the plant side is recoverable, device efficiency is high, and makeup water requires only minimum necessary amount. 4)年間稼動率が均一化され、ボイラ負荷の平準化が計られる。 4) annual operating rate is made uniform, leveled boiler load is timed. 5)外部との配管接続部を一ヶ所にまとめることができるため、現地工事の手間がかからなくなる。 5) for the piping connection with the outside can be summarized in one place, no longer it takes the hassle of site work.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明に係る冷熱源装置の一実施例を示す斜視図である。 Is a perspective view showing one embodiment of a cold heat source apparatus according to the present invention; FIG.

【図2】本発明に係る冷熱源装置のフローシートである。 It is a flow sheet of the cold heat source apparatus according to the present invention; FIG.

【図3】蒸気負荷へ供給する蒸気量を制御する方法を示す説明図である。 3 is an explanatory diagram showing a method of controlling the amount of steam supplied to the steam load.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 ボイラ 2 蒸気式冷温水機 3 給湯用熱交換器 4 ドレーン回収タンク 5 軟化器 6 共通ベース 7 化粧カバー 8 主蒸気配管 9 オリフィス 10 蒸気調整弁 11A,11B,11C 蒸気ドレーン 12 蒸気 13 冷水(温水) 14 給湯 15 温度検出器 16 サーモスタット 17 電磁弁 18 主調整弁 19 薬注器 20 薬注タンク 21 給水ポンプ 1 Boiler 2 vapor chiller 3 the hot water supply heat exchanger 4 the drain collection tank 5 softener 6 common base 7 facing cover 8 main steam pipe 9 orifice 10 steam regulating valve 11A, 11B, 11C vapor drain 12 vapor 13 cold water (hot water ) 14 hot water 15 temperature detector 16 thermostat 17 solenoid valve 18 main control valve 19 chemical feeder 20 chemical feed tank 21 feed water pump

Claims (2)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 蒸気ボイラ、蒸気式冷温水機、給湯用熱交換器、ドレーン回収タンク及び付帯装置を集合してユニット化した装置であって、前記蒸気ボイラの容量を蒸気式冷温水機の定格蒸気消費量以上とし、更に装置内及びプラントの蒸気ドレーンをボイラ給水として回収再利用し、冷水又は温水、給湯及び蒸気を同時に供給できるようにしたことを特徴とする冷熱源装置。 1. A steam boiler, steam chiller, heat exchanger for hot water supply, a device in which a unit by assembling the drain recovery tank and associated equipment, the capacity of the steam boiler of a steam chiller and the rated steam consumption above, further vapor drain of device and plant were recovered and reused as boiler feed water, cold water or hot water, cold heat source apparatus being characterized in that as the hot water and steam can be supplied at the same time.
  2. 【請求項2】 前記蒸気ボイラ、蒸気式冷温水機、給湯用熱交換器、ドレン回収タンク及び付帯装置は、共通ベース上に配置されていることを特徴とする請求項1記載の冷熱源装置。 Wherein said steam boiler, steam chiller, heat exchanger for hot water supply, drain recovery tank and associated apparatus, cold source apparatus according to claim 1, characterized in that it is arranged on a common base .
JP9963095A 1995-03-31 1995-03-31 Cold-heat source apparatus Pending JPH08271087A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9963095A JPH08271087A (en) 1995-03-31 1995-03-31 Cold-heat source apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9963095A JPH08271087A (en) 1995-03-31 1995-03-31 Cold-heat source apparatus

Publications (1)

Publication Number Publication Date
JPH08271087A true JPH08271087A (en) 1996-10-18

Family

ID=14252409

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9963095A Pending JPH08271087A (en) 1995-03-31 1995-03-31 Cold-heat source apparatus

Country Status (1)

Country Link
JP (1) JPH08271087A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012237534A (en) * 2011-05-13 2012-12-06 Hitachi Appliances Inc Sunlight heat utilized steam absorption chiller and sunlight heat utilization system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012237534A (en) * 2011-05-13 2012-12-06 Hitachi Appliances Inc Sunlight heat utilized steam absorption chiller and sunlight heat utilization system

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