JPH02184737A - Specific gravity/concentration measuring and adjusting device for aqueous solution - Google Patents
Specific gravity/concentration measuring and adjusting device for aqueous solutionInfo
- Publication number
- JPH02184737A JPH02184737A JP1004455A JP445589A JPH02184737A JP H02184737 A JPH02184737 A JP H02184737A JP 1004455 A JP1004455 A JP 1004455A JP 445589 A JP445589 A JP 445589A JP H02184737 A JPH02184737 A JP H02184737A
- Authority
- JP
- Japan
- Prior art keywords
- aqueous solution
- specific gravity
- concentration
- measuring
- weight
- 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.)
- Granted
Links
- 239000007864 aqueous solution Substances 0.000 title claims description 83
- 230000005484 gravity Effects 0.000 title claims description 74
- 238000005259 measurement Methods 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000126 substance Substances 0.000 claims description 16
- 238000005338 heat storage Methods 0.000 claims description 7
- 238000004378 air conditioning Methods 0.000 claims description 4
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 2
- 238000005070 sampling Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012937 correction Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Other Air-Conditioning Systems (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、水溶液の比重／濃度を測定し調節する水溶液
の比重／濃度測測定装置びに調節装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an aqueous solution specific gravity/concentration measurement measuring device and a regulating device for measuring and adjusting the specific gravity/concentration of an aqueous solution.
第５図は従来の比重測定器の例を示す図であり、４１は
測定器、４２は目盛り、４３は鉛を示す。FIG. 5 is a diagram showing an example of a conventional specific gravity measuring device, in which 41 is the measuring device, 42 is a scale, and 43 is lead.
従来、比重測定器には、例えば第５図に示すように測定
する水溶液の比重に合わせて鉛４３の壷でその重さを変
え、重さと浮力の釣り合った部分の液面部分での目盛り
４２を読み取ることによりその比重を測定するものがあ
る。Conventionally, specific gravity measuring instruments have been equipped with a scale 42 where the weight is changed according to the specific gravity of the aqueous solution to be measured using a 43-lead jar, and the liquid level is at a point where the weight and buoyancy are balanced, as shown in Figure 5. There is a method that measures the specific gravity by reading the .
また、従来の密度計としては、薄肉円筒の共振周波数が
内部の流体によって変わることを利用したものがあり、
比重計としては、平磁力平衡式の天子天秤を改造したも
のがある。In addition, some conventional density meters utilize the fact that the resonance frequency of a thin-walled cylinder changes depending on the fluid inside.
As a hydrometer, there is a modified Tenshi balance with flat magnetic force balance.
しかしながら、上記従来の比重測定器では、液面部分で
の目盛り４２を読み取って比重を測、定するので、その
精度は、小数点以下第２位程度までである。しかも、鉛
４３の量で比重測定器の重さを変え、重さと浮力を釣り
合わせて比重を測定するので、比重を自動的に連続して
測定することはできないという問題がある。However, in the conventional specific gravity measuring device, the specific gravity is measured and determined by reading the scale 42 at the liquid level, so the accuracy is limited to about two decimal places. Moreover, since the weight of the specific gravity measuring device is changed depending on the amount of lead 43 and the specific gravity is measured by balancing the weight and buoyancy, there is a problem that the specific gravity cannot be automatically and continuously measured.
また、共振周波数を利用した密度計では、測定範囲や測
定条件が狭く、高価であるという問題があり、電磁平衡
式の天子天秤を改造したタイプの比重計では、変化する
水溶液の比重を連続的に計測することができず、天子天
秤の測定可能な重量の範囲より精度の高い比重測定を行
うことが難しいという問題がある。Density meters that use resonant frequencies also have the problems of narrow measurement ranges and measurement conditions, and are expensive, while hydrometers that are modified from electromagnetic equilibrium Tenshi balances continuously measure the changing specific gravity of aqueous solutions. There is a problem in that it is difficult to measure specific gravity with higher precision than the measurable weight range of Tenshi balance.
本発明は、上記の課題を解決するものであって、簡便な
方法でしかも短時間で自動的に水溶液の比重や濃度を連
続的に測定することができる水溶液の比重／濃度測定装
置並びに調節装置の提供を目的とするものである。The present invention solves the above-mentioned problems, and is an aqueous solution specific gravity/concentration measurement device and adjustment device that can automatically and continuously measure the specific gravity and concentration of an aqueous solution in a simple manner and in a short time. The purpose is to provide the following.
そのために本発明に係る水溶液の比重／濃度測定装置は
、体積と重量が既知の物体を比重／濃度測定の対象であ
る水溶液中で保持して該保持力を測定することによって
、該保持力、前記物体の体積、及び前記物体の重量から
水溶液の比重／濃度を求めることを特徴とする。既知成
分の水溶液の濃度を測定する場合には、その成分の比重
も加えて水溶液の濃度を求める。また、水溶液の比重／
濃度調節装置は、水溶液の比重／濃度を求め前記供給手
段を制御する演算制御手段を備え、水溶液の比重や濃度
を連続測定して調節するように構成したことを特徴とす
るものである。To this end, the aqueous solution specific gravity/concentration measuring device according to the present invention holds an object whose volume and weight are known in an aqueous solution to be measured for specific gravity/concentration and measures the holding force. The method is characterized in that the specific gravity/concentration of the aqueous solution is determined from the volume of the object and the weight of the object. When measuring the concentration of an aqueous solution of a known component, the specific gravity of the component is also added to determine the concentration of the aqueous solution. Also, the specific gravity of the aqueous solution/
The concentration adjusting device is characterized in that it includes arithmetic control means for determining the specific gravity/concentration of the aqueous solution and controlling the supply means, and is configured to continuously measure and adjust the specific gravity and concentration of the aqueous solution.
・本発明の水溶液の比重／濃度測定装置並びに調節装置
では、比重／濃度測定の対象である水溶液中で体積と重
量が既知の物体を保持して該保持力を測定することによ
って、物体の重量と浮力との差を求めることができ、こ
れを換算して比重を測定することができる。既知の物質
の水溶液の濃度を測定する場合にも、該物質の比重と水
溶液の比重に基づいて濃度を求めることができる。また
、これら比重／濃度測定法を利用して、水溶液の濃度を
調節することができる。- In the aqueous solution specific gravity/concentration measurement device and adjustment device of the present invention, the weight of the object is determined by holding an object whose volume and weight are known in the aqueous solution that is the target of specific gravity/concentration measurement and measuring the holding force. The difference between the buoyant force and the buoyant force can be calculated, and this can be converted to measure the specific gravity. Even when measuring the concentration of an aqueous solution of a known substance, the concentration can be determined based on the specific gravity of the substance and the specific gravity of the aqueous solution. Further, the concentration of the aqueous solution can be adjusted using these specific gravity/concentration measurement methods.
特定の水溶液を一部氷にした場合には、氷の量に比例し
て水溶液中の水量が減少し濃度が変化する。そこで、特
定の物質の水溶液を冷凍機等で冷却し、氷を製造した場
合には、その水溶液中の氷の量又は割合を測定する水量
測定装置としても利用できる。When a part of a specific aqueous solution is turned into ice, the amount of water in the aqueous solution decreases in proportion to the amount of ice, and the concentration changes. Therefore, when ice is produced by cooling an aqueous solution of a specific substance using a refrigerator or the like, it can also be used as a water amount measuring device for measuring the amount or proportion of ice in the aqueous solution.
以下、図面を参照しつつ実施例を説明する。 Examples will be described below with reference to the drawings.
第１図は本発明に係る水溶液の比重／濃度測定装置の１
実施例を示す図、第２図は本発明に係る比重／濃度測測
定原理を説明するための図である。FIG. 1 shows a device for measuring specific gravity/concentration of an aqueous solution according to the present invention.
FIG. 2, which is a diagram showing an embodiment, is a diagram for explaining the principle of specific gravity/concentration measurement according to the present invention.
図中、ｌは測定体、２は支持棒、３は荷重測定装置、４
は信号演算処理装置、５は水溶液、６は測定用水槽、７
はサンプリングポンプ、８は水槽、９はてこ装置を示す
。In the figure, l is the measurement object, 2 is the support rod, 3 is the load measuring device, and 4
is a signal processing device, 5 is an aqueous solution, 6 is a measurement water tank, 7
8 indicates a sampling pump, 8 indicates a water tank, and 9 indicates a lever device.
第１図において、荷重測定装置３は、荷重を抵抗値や電
流に変換するものである。信号処理装置４は、荷重信号
から比重又は濃度を求めるものであり、測定体１の重量
と浮力との差から水溶液５の比重や濃度を演算して求め
るものである。測定体ｌは、荷重測定装置３に支持棒２
で支持された体積と重量が既知の物体であり、比重又は
濃度を測定する水溶液５の中に水没するように保持され
る。本発明は、このような構成により、水溶液５の中に
測定体ｌを保持した状態における保持力をてこの原理で
増幅して荷重測定装置３で測定することによって、測定
体１の体積と重量から比重を求め、また、水溶液５の中
の既知の物質の水溶液については、その物質の比重から
水溶液５の濃度を求める。測定用水槽６の中の水溶液は
、サンプリングポンプ７により常時ｉｉｌされているの
で、変化する水溶液の比重／濃度を連続的に測定するこ
とができる。In FIG. 1, a load measuring device 3 converts a load into a resistance value or current. The signal processing device 4 determines the specific gravity or concentration from the load signal, and calculates the specific gravity or concentration of the aqueous solution 5 from the difference between the weight of the measuring object 1 and the buoyancy. The measurement object l is attached to a load measuring device 3 with a support rod 2.
The object is supported by an object having a known volume and weight, and is held submerged in an aqueous solution 5 whose specific gravity or concentration is to be measured. With such a configuration, the present invention amplifies the holding force when the measuring object 1 is held in the aqueous solution 5 using the lever principle and measures it with the load measuring device 3, thereby determining the volume and weight of the measuring object 1. For an aqueous solution of a known substance in the aqueous solution 5, the concentration of the aqueous solution 5 is determined from the specific gravity of the substance. Since the aqueous solution in the measuring water tank 6 is constantly pumped by the sampling pump 7, the changing specific gravity/concentration of the aqueous solution can be continuously measured.
次に比重測定と濃度測定の原理を説明する。Next, the principles of specific gravity measurement and concentration measurement will be explained.
まず、比重測定では、いま、第２図に示すように重量Ｍ
（ｋｇ） 、体積Ｃ（ｍ’）の物体１１を比重ａ、の
水溶液１２の中に入れてＦ＋（ｋｇ）の力を加え、水溶
液１２の中で平行状態に保っているとすると、次の式が
成り立つ。First, in the specific gravity measurement, as shown in Figure 2, the weight M
(kg), volume C (m') is placed in an aqueous solution 12 with specific gravity a, a force of F+ (kg) is applied, and the object 11 is kept in a parallel state within the aqueous solution 12. The formula holds true.
つまり、重ＩＭおよび体積Ｃが既知であれば、支持棒２
により水溶液５中で保持される保持力Ｆ＋を荷重測定装
置３で測定することにより比重ａ。In other words, if the weight IM and volume C are known, the support rod 2
By measuring the holding force F+ held in the aqueous solution 5 using the load measuring device 3, the specific gravity a can be determined.
を知ることができる。You can know.
また、濃度測定では、水溶液１２が既知の物質への水溶
液である場合、その物質への１００％濃度の比重がａｘ
ｏｎｓ、水の比重がａｙ （＝１）、この水溶液の濃
度をＸ％、水溶液の容積Ｃの中の水および物質への容積
をそれぞれｙＷｌｙＡとすると、次の式が成り立つ。In addition, in concentration measurement, if the aqueous solution 12 is an aqueous solution of a known substance, the specific gravity of the 100% concentration of the substance is ax
ons, the specific gravity of water is ay (=1), the concentration of this aqueous solution is X%, and the volumes of water and substance in the volume C of the aqueous solution are respectively yWlyA, then the following equation holds true.
ｙｗ＋ｙＡ：Ｃ
＝ａ、 ・Ｃ（１−）
３／ Ａ Ｘ ａ ＋ｏｏｓ＝ （Ｍ＋ Ｆ ＋
） Ｘ＝ａ、 ・Ｃ・
故に、
ｘ＝１００ （１−ａ、 ） ／ （ａ、ｌ
−ａｏ）
ＦＩ Ｉａｏ％
となる。ここで、ａｍは先に述べたように測定比重であ
り、また、ａ、。。、は既知であるので、比重を測定す
ることにより濃度Ｘを知ることができる。yw+yA:C = a, ・C(1-) 3/A X a +oos= (M+ F +
) X=a, ・C・ Therefore, x=100 (1-a, ) / (a, l -ao) FI Iao%. Here, am is the measured specific gravity as mentioned above, and a. . Since , is known, the concentration X can be determined by measuring the specific gravity.
また、上記比重を求める式を代入することによっで、濃
度Ｘは、荷重測定装置３で測定される保持力Ｆ ｌ 、
及び既知のデータ物質への比重ａ１゜。１、測定体ｌの
重ＩＭ、体積Ｃから求めることができる
第３図は本発明に係る水溶液の比重／濃度調節装置の１
実施例を示す図である。Also, by substituting the formula for calculating the specific gravity, the concentration X can be determined by the holding force F l measured by the load measuring device 3,
and specific gravity a1° to known data substances. 1. Figure 3, which can be determined from the weight IM and volume C of the measuring object l, shows the specific gravity/concentration adjustment device for an aqueous solution according to the present invention.
It is a figure showing an example.
第３図において、２１は演算制御装置、２２と２３はバ
ルブ、２４は水槽、２５は水溶液を示す。In FIG. 3, 21 is an arithmetic and control unit, 22 and 23 are valves, 24 is a water tank, and 25 is an aqueous solution.
バルブ２２は希釈用の水の注入用であり、バルブ２３は
高濃度の水溶液注入用である。演算制御装置２１は、荷
重測定装置３の荷重測定信号に基づいて比重／濃度を算
出し、バルブ２２、バルブ２３を開閉制御するものであ
る。このようなシステム構成において、演算制御装置２
１に基準の濃度を設定して水溶液５の濃度を測定し、そ
の濃度が一定になるようにバルブ２２、バルブ２３を開
閉制御することによって水溶液５の濃度を基準の濃度に
なるように自動調節することができる。このとき、水溶
液の温度を温度計２６にて測定し、膨張等の温度補正を
行い比重／濃度を正確に求めるようにしている。また、
測定対象の水溶液２５は既知の物質の水溶液である。サ
ンプリングポンプ７は、水槽２４内の測定対象の水溶液
２５を測定用水槽６へ常時導き循環させるものであり、
変化する測定対象の水溶液の濃度を連続的に測定し、濃
度制御を行うことができる。Valve 22 is for injecting water for dilution, and valve 23 is for injecting a highly concentrated aqueous solution. The arithmetic and control device 21 calculates specific gravity/concentration based on the load measurement signal from the load measurement device 3, and controls the opening and closing of the valves 22 and 23. In such a system configuration, the arithmetic and control unit 2
The concentration of the aqueous solution 5 is automatically adjusted to the reference concentration by setting the reference concentration in 1 and measuring the concentration of the aqueous solution 5, and controlling the opening and closing of the valves 22 and 23 so that the concentration is constant. can do. At this time, the temperature of the aqueous solution is measured with a thermometer 26, and temperature correction such as expansion is performed to accurately determine specific gravity/concentration. Also,
The aqueous solution 25 to be measured is an aqueous solution of a known substance. The sampling pump 7 constantly guides and circulates the aqueous solution 25 to be measured in the water tank 24 to the measurement water tank 6.
The changing concentration of the aqueous solution to be measured can be continuously measured and the concentration can be controlled.
なお、測定用水槽６は、サンプリングポンプ７からの流
入水の動圧の影響が測定体ｌに作用し、荷重測定に誤差
を生じることがないような配慮が必要であることはいう
までもない。It goes without saying that the measuring water tank 6 must be designed to prevent the influence of the dynamic pressure of the inflow water from the sampling pump 7 from acting on the measuring object 1 and causing errors in load measurement. .
特定の水溶液を一部氷にした場合には、氷の蛍に比例し
て水溶液中の水量が減少し濃度が変化する。そこで、特
定の物質の水溶液を冷凍機等で冷却し、氷を製造した場
合には、その水溶液中の氷の量又は割合を測定する水量
測定装置としても利用できる。When a part of a particular aqueous solution is turned into ice, the amount of water in the aqueous solution decreases and its concentration changes in proportion to the ice. Therefore, when ice is produced by cooling an aqueous solution of a specific substance using a refrigerator or the like, it can also be used as a water amount measuring device for measuring the amount or proportion of ice in the aqueous solution.
次に、この濃度測定装置により氷蓄熱空調システムにお
ける氷蓄熱槽の水量を測定する方法について説明する。Next, a method of measuring the amount of water in an ice heat storage tank in an ice heat storage air conditioning system using this concentration measuring device will be described.
第４図は氷蓄熱空調システムに利用した本発明の他の実
施例を示す図であり、３２は氷蓄熱槽、３１は氷蓄熱槽
内にある特定の物質の水溶液、３３は製氷機、３４は製
氷ポンプを示す。FIG. 4 is a diagram showing another embodiment of the present invention utilized in an ice heat storage air conditioning system, in which 32 is an ice heat storage tank, 31 is an aqueous solution of a specific substance in the ice heat storage tank, 33 is an ice maker, and 34 indicates an ice pump.
水溶液３１が製氷機３３により冷却され、氷ができ始め
る前の濃度ａ１％、ｘｋｇの氷ができたときの濃度をａ
、％、水溶液の重さをＶｋｇとすると、下式が成り立つ
。When the aqueous solution 31 is cooled by the ice maker 33, the concentration is a1% before ice starts to form, and the concentration is a when x kg of ice is formed.
, %, and when the weight of the aqueous solution is Vkg, the following formula holds true.
ｌｌ
水充填率＝ −Ｘ １００％
つまり、氷ができる前の濃度を測定しておくことにより
、氷ができた状態の濃度を測定し、できている氷の重さ
及び水充填率を求めることができる。ll Water filling rate = -X 100% In other words, by measuring the concentration before ice is formed, the concentration in the state where ice is formed can be measured and the weight and water filling rate of the formed ice can be determined. Can be done.
このように臭化リチウム水溶液等の特定の物質の水溶液
を使用し、製氷機でシャーベット状の氷を作り蓄熱槽に
貯水する氷蓄熱式空調システムに本発明の濃度測定装置
を適用すると、氷の量や氷の割合を濃度変化として連続
的に測定することができる。In this way, when the concentration measuring device of the present invention is applied to an ice storage type air conditioning system that uses an aqueous solution of a specific substance such as a lithium bromide solution to create sherbet-like ice in an ice maker and stores water in a heat storage tank, it is possible to The amount and percentage of ice can be measured continuously as changes in concentration.
なお、本発明は、上記の実施例に限定されるものではな
く、種々の変形が可能である。例えばサンプリングポン
プを設けずに、単なる比重／濃度測定装置として使用し
てもよい。また、測定精度等の条件によっては、てこの
原理を応用した装置を設けずに、保持力を直接測定する
ことも考えることができる。Note that the present invention is not limited to the above embodiments, and various modifications are possible. For example, it may be used as a simple specific gravity/concentration measuring device without providing a sampling pump. Furthermore, depending on conditions such as measurement accuracy, it may be possible to directly measure the holding force without providing a device that applies the lever principle.
以上の説明から明らかなように、本発明によれば、比重
／濃度測測定対象である水溶液中で体積と重量が既知の
物体を保持して該保持力を測定するので、物体の重量と
浮力との差をてこの原理を応用して高精度に求めること
ができ、これを換算して比重を測定することができる。As is clear from the above description, according to the present invention, an object whose volume and weight are known is held in an aqueous solution to be measured for specific gravity/concentration measurement, and the holding force is measured. The difference can be determined with high precision by applying the lever principle, and this can be converted to measure the specific gravity.
また、既知の物質の水溶液の濃度を測定する場合にも、
水溶液中に保持した物体の保持力を測定するだけで、既
知データである物体の体積と重量、水溶液中の物質の比
重を使って濃度を求めることができ、自動的に簡便に比
重／濃度を測定することができる。Also, when measuring the concentration of an aqueous solution of a known substance,
By simply measuring the holding force of an object held in an aqueous solution, the concentration can be determined using known data such as the volume and weight of the object and the specific gravity of the substance in the aqueous solution, and the specific gravity/concentration can be calculated automatically and easily. can be measured.
したがって、この測定データを基にバルブを制御するこ
とによって、簡便に水溶液の比重／濃度を調節すること
ができる。Therefore, by controlling the valve based on this measurement data, the specific gravity/concentration of the aqueous solution can be easily adjusted.
また、氷蓄熱の場合には、氷が浮遊する蓄熱槽において
、従来の技術では難しかった槽内水量の把握を、この比
重／濃度測測定装置より常時行うことが容易となり、蓄
熱エネルギーの最適利用を図ることができる。In addition, in the case of ice thermal storage, this specific gravity/concentration measuring device makes it easy to constantly monitor the amount of water in a thermal storage tank with floating ice, which was difficult to do with conventional technology, making optimal use of stored thermal energy. can be achieved.
第１図は本発明に係る水溶液の比重／濃度測定装置の１
実施例を示す図、第２図は本発明に係る比重／濃度測定
の原理を説明するための図、第３図は本発明に係る水溶
液の比重／濃度調節装置の１実施例を示す図、第４図は
水溶液の濃度を測定する本発明の他の実施例を示す図、
第５図は従来の比重測定器の例を示す図である。
ｌ・・・測定体、２・・・支持棒、３・・・荷重測定装
置、４・・・信号演算処理装置、５・・・水溶液、６・
・・測定用水槽、７・・・サンプリングポンプ、８・・
・水槽、９・・・てこ装置。
出 願 人 清水建設株式会社FIG. 1 shows a device for measuring specific gravity/concentration of an aqueous solution according to the present invention.
FIG. 2 is a diagram illustrating the principle of specific gravity/concentration measurement according to the present invention; FIG. 3 is a diagram showing an embodiment of the aqueous solution specific gravity/concentration adjusting device according to the present invention; FIG. 4 is a diagram showing another embodiment of the present invention for measuring the concentration of an aqueous solution;
FIG. 5 is a diagram showing an example of a conventional specific gravity measuring device. l... Measuring object, 2... Support rod, 3... Load measuring device, 4... Signal calculation processing device, 5... Aqueous solution, 6...
...Measuring water tank, 7...Sampling pump, 8...
・Aquarium, 9...Leverage device. Applicant: Shimizu Corporation
Claims (5)
積と重量が既知の物体を比重／濃度測定の対象である水
溶液中で保持して該保持力を測定することによって、該
保持力、前記物体の体積、及び前記物体の重量から水溶
液の比重／濃度を求めることを特徴とする水溶液の比重
／濃度測定装置。(1) A device for measuring the specific gravity/concentration of an aqueous solution, which measures the holding force by holding an object whose volume and weight are known in the aqueous solution that is the target of specific gravity/concentration measurement. An apparatus for measuring specific gravity/concentration of an aqueous solution, characterized in that the specific gravity/concentration of the aqueous solution is determined from the volume of the object and the weight of the object.
及び既知の成分の比重から当該既知の成分の水溶液の濃
度を求めることを特徴とする請求項１記載の水溶液の比
重／濃度測定装置。(2) the holding force, the volume of the object and the weight of the object;
2. The specific gravity/concentration measuring device for an aqueous solution according to claim 1, wherein the concentration of the aqueous solution of the known component is determined from the specific gravity of the known component.
気信号を既知のデータから比重／濃度を演算する手段を
備え、比重／濃度を自動的に連続測定できるように構成
したことを特徴とする請求項１記載の水溶液の比重／濃
度測定装置。(3) It is characterized by comprising means for extracting the holding force as an electrical signal, and means for calculating specific gravity/concentration from the electrical signal from known data, so that specific gravity/concentration can be automatically and continuously measured. The specific gravity/concentration measuring device for an aqueous solution according to claim 1.
給手段、体積と重量が既知の物体を比重測定の対象であ
る水溶液中で保持し、該保持力を測定することによって
該保持力、前記物体の体積、及び前記物体の重量から水
溶液の比重／濃度を求め前記供給手段を制御する演算制
御手段を備え、水溶液の比重や濃度を連続測定して調節
するように構成したことを特徴とする水溶液の比重／濃
度調節装置。(4) Supply means for supplying a highly concentrated aqueous solution and water to an aqueous solution container, holding an object whose volume and weight are known in the aqueous solution to be measured for specific gravity, and measuring the holding force. , comprising an arithmetic control means for determining the specific gravity/concentration of the aqueous solution from the volume of the object and the weight of the object and controlling the supply means, and configured to continuously measure and adjust the specific gravity and concentration of the aqueous solution. Specific gravity/concentration adjustment device for aqueous solutions.
用し、製氷機でシャーベット状の氷を作り蓄熱槽に貯水
する氷蓄熱式空調システムに適用し、氷の量や氷の割合
を濃度変化として連続的に測定するように構成したこと
を特徴とする請求項４記載の水溶液の比重／濃度調節装
置。(5) Applied to an ice storage air conditioning system that uses an aqueous solution of a specific substance such as an aqueous lithium bromide solution to create sherbet-like ice in an ice maker and store water in a heat storage tank, the amount and proportion of ice can be adjusted to 5. The aqueous solution specific gravity/concentration adjusting device according to claim 4, characterized in that the device is configured to continuously measure changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1004455A JPH02184737A (en) | 1989-01-11 | 1989-01-11 | Specific gravity/concentration measuring and adjusting device for aqueous solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1004455A JPH02184737A (en) | 1989-01-11 | 1989-01-11 | Specific gravity/concentration measuring and adjusting device for aqueous solution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02184737A true JPH02184737A (en) | 1990-07-19 |
| JPH0587777B2 JPH0587777B2 (en) | 1993-12-17 |
Family
ID=11584625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1004455A Granted JPH02184737A (en) | 1989-01-11 | 1989-01-11 | Specific gravity/concentration measuring and adjusting device for aqueous solution |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02184737A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04124451U (en) * | 1991-04-26 | 1992-11-12 | 株式会社島津製作所 | Slurry diluter |
| JPH08271398A (en) * | 1995-03-30 | 1996-10-18 | Kosei Koki:Kk | Specific gravity measuring method for liquid material using load cell |
| JP2008213220A (en) * | 2007-03-01 | 2008-09-18 | Meiji Rubber & Chem Co Ltd | Gravity concentration device for waste resin flake |
| CN111521509A (en) * | 2020-04-21 | 2020-08-11 | 紫锐集团有限公司 | Apparatus for measuring concentration of gas in solution |
-
1989
- 1989-01-11 JP JP1004455A patent/JPH02184737A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04124451U (en) * | 1991-04-26 | 1992-11-12 | 株式会社島津製作所 | Slurry diluter |
| JPH08271398A (en) * | 1995-03-30 | 1996-10-18 | Kosei Koki:Kk | Specific gravity measuring method for liquid material using load cell |
| JP2008213220A (en) * | 2007-03-01 | 2008-09-18 | Meiji Rubber & Chem Co Ltd | Gravity concentration device for waste resin flake |
| JP4658080B2 (en) * | 2007-03-01 | 2011-03-23 | 株式会社明治ゴム化成 | Specific gravity sorter for waste resin flakes |
| CN111521509A (en) * | 2020-04-21 | 2020-08-11 | 紫锐集团有限公司 | Apparatus for measuring concentration of gas in solution |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0587777B2 (en) | 1993-12-17 |
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