JPS626449Y2 - - Google Patents
Info
- Publication number
- JPS626449Y2 JPS626449Y2 JP1980159017U JP15901780U JPS626449Y2 JP S626449 Y2 JPS626449 Y2 JP S626449Y2 JP 1980159017 U JP1980159017 U JP 1980159017U JP 15901780 U JP15901780 U JP 15901780U JP S626449 Y2 JPS626449 Y2 JP S626449Y2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- cooling water
- control valve
- generator
- heating
- 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.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 239000000498 cooling water Substances 0.000 claims description 23
- 238000010438 heat treatment Methods 0.000 claims description 16
- 238000010521 absorption reaction Methods 0.000 claims description 14
- 239000000446 fuel Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 6
- 239000006096 absorbing agent Substances 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 238000005057 refrigeration Methods 0.000 claims description 5
- 239000003507 refrigerant Substances 0.000 description 9
- 238000001816 cooling Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Sorption Type Refrigeration Machines (AREA)
Description
【考案の詳細な説明】
本考案は直焚式の吸収冷凍機の制御装置に関
し、詳しくは少なくとも冷却水管の入口温度を検
出し、冷水出口温度による加熱量を補償し、冷水
温度設定を自動的に制御する如くした制御装置に
係わるものである。[Detailed description of the invention] This invention relates to a control device for a direct-fired absorption chiller, and more specifically, it detects at least the inlet temperature of the cooling water pipe, compensates for the amount of heating depending on the cold water outlet temperature, and automatically sets the cold water temperature. The invention relates to a control device that controls the following.
一般に、吸収冷凍機において供給される冷却水
の温度は、低いほど吸収器における吸収能力が増
大し、凝縮器における冷媒凝縮効果も増大するた
め、冷凍能力が増す傾向にある。この場合、冷却
水温度は外気温度(特に湿球温度)および冷房負
荷などによつて左右され、湿球温度或いは冷房負
荷が低いほど冷却塔で冷却され吸収冷凍機に返る
冷却水の温度は低くなる。この吸収冷凍機側では
冷却水温度が低下すると冷凍能力増大のため、冷
水温度が低下し容量制御装置が作動して冷凍出力
を減少させる比例制御方式を採つてなり、第1図
の例に示すように冷水温度は低下するものとな
る。しかし、吸収冷凍機を冷房用に使用する場
合、負荷側の要求としては外気温度が低いときや
冷房負荷が小さいときには冷水温度が高くなつた
方が好都合で、逆に外気温度が高く、冷房負荷が
重いときに冷水温度が下がるのが好都合である。 Generally, the lower the temperature of the cooling water supplied to an absorption refrigerator, the more the absorption capacity in the absorber increases, and the refrigerant condensation effect in the condenser also increases, so the refrigeration capacity tends to increase. In this case, the cooling water temperature is influenced by the outside air temperature (particularly the wet bulb temperature) and the cooling load, and the lower the wet bulb temperature or cooling load, the lower the temperature of the cooling water that is cooled in the cooling tower and returned to the absorption chiller. Become. On the absorption chiller side, when the cooling water temperature decreases, the refrigeration capacity increases, so a proportional control system is adopted in which the chilled water temperature decreases and the capacity control device operates to reduce the refrigeration output, as shown in the example in Figure 1. As a result, the cold water temperature will decrease. However, when an absorption chiller is used for cooling, it is more convenient for the load to have a higher chilled water temperature when the outside temperature is low or when the cooling load is low; It is advantageous for the cold water temperature to drop when the water is heavy.
本考案は上記実情に鑑み、吸収冷凍機または吸
収冷温水機を冷房用に使用する場合、冷房負荷お
よび外気温度条件等に適合した温度の冷水を供給
できるようにすると同時に、冷凍機に加える加熱
量を節約する制御装置を提供するものである。 In view of the above circumstances, the present invention is designed to supply cold water at a temperature that matches the cooling load and outside temperature conditions when an absorption chiller or absorption chiller/heater is used for air conditioning. The present invention provides a control device that saves on volume.
以下、本考案を実施例の図面について説明すれ
ば次の通りである。 Hereinafter, the present invention will be described with reference to drawings of embodiments.
1はガス等の燃焼により加熱される燃焼加熱室
2を備えた稀液から冷媒を加熱分離する高温発生
器で、該高温発生器1より導いた冷媒蒸気管3の
先端に、この冷媒蒸気を熱源として再熱し中間液
の冷媒を更に加熱分離する低温発生器4を設ける
と共に、該低温発生器4の側部には冷却水パイプ
5の熱交換パイプ部6によつて低温発生器4から
流入する冷媒を凝縮して冷却する凝縮器7が臨ん
でなる。8は前記凝縮器7からの冷媒液を散布し
て気化させる際の潜熱を利用して冷水用熱交換パ
イプ部9から冷房用の冷水を得るようにした蒸発
器で、該蒸発器8の側部には、低温発生器4で冷
媒が分離された濃度の吸収液を散布して器内の冷
媒蒸気を吸収することにより、蒸発器8の内部を
低圧に維持し連続した冷水の供給を行なうように
した吸収器10が臨んでなる。11は低温熱交換
器、12は高温熱交換器で、これらは冷媒蒸気管
3、冷媒液管13、冷媒ポンプ14を有する冷媒
循環路15、吸収液ポンプ16を有する稀液管1
7、中間液管18および濃液管19により配管接
続して冷凍サイクルを構成している。20は前記
冷水用熱交換パイプ部9の冷水出口温度の検出器
21および冷却水パイプ5の熱交換パイプ部24
の冷却水入口温度用検出器22を接続した温度調
節器で、該温度調節器20に前記燃焼加熱室2に
設けた加熱を調整する燃料制御弁23を取付けて
なる。 Reference numeral 1 denotes a high-temperature generator for heating and separating refrigerant from a dilute liquid, which is equipped with a combustion heating chamber 2 heated by combustion of gas, etc., and the refrigerant vapor is introduced into the tip of a refrigerant vapor pipe 3 led from the high-temperature generator 1. A low-temperature generator 4 is provided as a heat source to reheat and further heat and separate the intermediate liquid refrigerant, and water flows from the low-temperature generator 4 into the side of the low-temperature generator 4 through a heat exchange pipe section 6 of a cooling water pipe 5. A condenser 7 is provided for condensing and cooling the refrigerant. Reference numeral 8 denotes an evaporator that obtains cold water for air conditioning from a cold water heat exchange pipe section 9 by utilizing latent heat when the refrigerant liquid from the condenser 7 is dispersed and vaporized. In the evaporator 8, the inside of the evaporator 8 is maintained at a low pressure by spraying a concentrated absorption liquid from which the refrigerant has been separated by the low temperature generator 4 to absorb the refrigerant vapor inside the container, thereby continuously supplying cold water. An absorber 10 configured as shown in FIG. 11 is a low temperature heat exchanger, 12 is a high temperature heat exchanger;
7. A refrigeration cycle is constructed by connecting the intermediate liquid pipe 18 and the concentrated liquid pipe 19. Reference numeral 20 denotes a detector 21 for the cold water outlet temperature of the cold water heat exchange pipe section 9 and a heat exchange pipe section 24 of the cooling water pipe 5.
This temperature regulator is connected to a cooling water inlet temperature detector 22, and a fuel control valve 23 for adjusting the heating provided in the combustion heating chamber 2 is attached to the temperature regulator 20.
いまこの作用を説明すると、先ず第2図の系統
図に示すように、一般に行なわれている冷水出口
温度による加熱量の制御に加えて、冷却水入口温
度を検出器22により検出し、この信号を温度調
節器20に加えるものである。 To explain this function, first, as shown in the system diagram of Fig. 2, in addition to controlling the heating amount based on the chilled water outlet temperature, which is generally done, the coolant inlet temperature is detected by the detector 22, and this signal is detected. is added to the temperature controller 20.
ここにおいて、一般に吸収冷凍機の冷却水入口
温度の設計値は、第3図の説明図に示すように32
℃近辺が多く、このように冷却水入口温度が設計
値近辺であれば冷水出口温度の信号のみで温度調
節器20を介して燃料制御弁23の開度を調整し
加熱量を制御し、冷却水温度が低下するに従い冷
水制御温度を引上げるようにする。この場合、温
度調節器20には、冷却水入口温度の変動により
冷水出口温度設定が自動的に変化する巾(第3図
D記号参照)を任意にセツトできる機構を設け、
冷却水温度の変化巾と冷水出口温度の変化を自由
に変えられるようにしておくものである。 Here, generally the design value of the cooling water inlet temperature of the absorption chiller is 32
℃, and if the cooling water inlet temperature is close to the design value, the opening degree of the fuel control valve 23 is adjusted via the temperature regulator 20 using only the signal of the chilled water outlet temperature to control the amount of heating and cooling. As the water temperature decreases, the chilled water control temperature will be raised. In this case, the temperature regulator 20 is provided with a mechanism that can arbitrarily set the width (see symbol D in FIG. 3) in which the chilled water outlet temperature setting changes automatically according to fluctuations in the coolant inlet temperature.
This allows the range of change in cooling water temperature and the change in cold water outlet temperature to be freely changed.
尚、冷却水温度の温度検出に当つては、検出器
22を冷却水入口部の外に冷却水出口にも配し
(図示せず)、冷却水出入口温度を検出し、この温
度差の信号を温度調節器20に与えてもよい。こ
の場合、冷却水温度差が減少すると冷水温度を上
昇させるため、冷凍機の成績係数が上昇し加熱量
を減少させることができる。 In addition, when detecting the cooling water temperature, a detector 22 may be provided at the cooling water outlet in addition to the cooling water inlet (not shown) to detect the cooling water inlet and outlet temperatures and send a signal of this temperature difference to the temperature regulator 20. In this case, when the cooling water temperature difference decreases, the chilled water temperature is increased, so that the coefficient of performance of the chiller increases and the amount of heating can be reduced.
上述の様に本考案は少なくとも冷却水入口部と
冷水出口部に配した検出器を加熱用制御弁に連絡
した温度調節器へ導いたことにより、負荷側の要
求に応じた温度の冷水を供給できると同時に、必
要以上の加熱を行なうことなく、燃料蒸気など加
熱量の節約に有効である。また冷却水温度が設計
値より10数度以上も低い場合などに、設計値の入
熱を加えて運転を行なうと吸収冷凍機内部におけ
る吸収液の結晶などの原因となり得るが、本考案
の制御手段によれば自動的に冷却水温度で加熱量
の制限が行なわれるので有利である等の実用的効
果を奏する。 As mentioned above, the present invention supplies chilled water at a temperature that meets the demands of the load by guiding the detectors placed at least at the cooling water inlet and chilled water outlet to the temperature controller connected to the heating control valve. At the same time, it is effective in saving the amount of heating such as fuel vapor without heating more than necessary. In addition, when the cooling water temperature is more than 10 degrees lower than the design value, operating with the design value of heat input may cause crystallization of the absorption liquid inside the absorption chiller. According to this means, the amount of heating is automatically limited by the temperature of the cooling water, so that it produces practical effects such as being advantageous.
第1図は従来装置を用いた場合の負荷と制御状
態の説明図、第2図は本考案の実施例を示す系統
図、第3図は同制御状態の説明図である。
1……高温発生器、2……燃焼加熱室、4……
低温発生器、5……冷却水パイプ、7……凝縮
器、8……蒸発器、9……冷水用熱交換パイプ
部、10……吸収器、11……低温熱交換器、1
2……高温熱交換器、20……温度調節器、21
……検出器、22……検出器、23……燃料制御
弁、24……熱交換パイプ部。
FIG. 1 is an explanatory diagram of the load and control state when a conventional device is used, FIG. 2 is a system diagram showing an embodiment of the present invention, and FIG. 3 is an explanatory diagram of the same control state. 1... High temperature generator, 2... Combustion heating chamber, 4...
Low temperature generator, 5...Cooling water pipe, 7...Condenser, 8...Evaporator, 9...Cold water heat exchange pipe section, 10...Absorber, 11...Low temperature heat exchanger, 1
2... High temperature heat exchanger, 20... Temperature controller, 21
...Detector, 22...Detector, 23...Fuel control valve, 24...Heat exchange pipe section.
Claims (1)
を配管接続して冷凍サイクルを構成し、この発生
器の燃焼加熱室部に取付けた燃料制御弁に、この
燃料制御弁の開度を調整して発生器における吸収
液の加熱量を負荷率に応じて制御する温度調節器
を設置し、この温度調節器に前記負荷を検知する
冷水出口温度検出器を接続してこの検出器からの
信号を燃料制御弁へその制御信号として送るよう
にし、かつ、吸収器及び凝縮器に供給される冷却
水の温度検出器を、前記温度調節器に接続して冷
却水の温度が低くなるに従い冷水出口温度の設定
温度を引上げることにより、同じ冷水温度条件下
における加熱燃料を制限するように前記制御信号
の大きさを温度調節器で変えて燃料制御弁の開度
を調整する吸収冷凍機の制御装置。 A generator, condenser, evaporator, absorber, and heat exchanger are connected via piping to form a refrigeration cycle, and the opening degree of this fuel control valve is controlled by a fuel control valve installed in the combustion heating chamber of this generator. A temperature controller is installed to adjust and control the amount of heating of the absorption liquid in the generator according to the load factor, and a chilled water outlet temperature detector that detects the load is connected to this temperature controller, and the temperature from this detector is connected. A signal is sent to the fuel control valve as a control signal, and a temperature sensor of the cooling water supplied to the absorber and condenser is connected to the temperature controller, so that as the temperature of the cooling water decreases, the temperature of the cooling water increases. An absorption chiller that adjusts the opening degree of a fuel control valve by changing the magnitude of the control signal with a temperature controller so as to limit heating fuel under the same cold water temperature condition by raising the set temperature of the outlet temperature. Control device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1980159017U JPS626449Y2 (en) | 1980-11-06 | 1980-11-06 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1980159017U JPS626449Y2 (en) | 1980-11-06 | 1980-11-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5781369U JPS5781369U (en) | 1982-05-19 |
JPS626449Y2 true JPS626449Y2 (en) | 1987-02-14 |
Family
ID=29518053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1980159017U Expired JPS626449Y2 (en) | 1980-11-06 | 1980-11-06 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS626449Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008128558A (en) * | 2006-11-21 | 2008-06-05 | Kawasaki Thermal Engineering Co Ltd | Method and device for energy saving control operation of absorption water cooler/heater |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5944559A (en) * | 1982-09-03 | 1984-03-13 | 株式会社日立製作所 | Controller for absorption type cold and hot water machine |
-
1980
- 1980-11-06 JP JP1980159017U patent/JPS626449Y2/ja not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008128558A (en) * | 2006-11-21 | 2008-06-05 | Kawasaki Thermal Engineering Co Ltd | Method and device for energy saving control operation of absorption water cooler/heater |
Also Published As
Publication number | Publication date |
---|---|
JPS5781369U (en) | 1982-05-19 |
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