JP2001242059A - Concentration meter for heating liquid medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a concentration meter of heating liquid medium capable of easily measuring the concentration of the heating liquid medium liquid at a low cost without taking out the heating liquid medium from a system in a device using the heating liquid medium, and maintaining the accuracy within a wide temperature range. SOLUTION: In the system of the device using the heating liquid medium, a container 2 having a window 1 by which the inside can be observed is installed. One or more floats (1-n) are put into the inside of the container 2. Heating liquid medium of prescribed concentrations different from each other are enclosed in the floats (1-n), and they have the same quality as the heating liquid medium existing inside of the container 2 and flowing outside of the floats (1-n). Each of the floats (1-n) is made to float or sink according to the concentration of the heating liquid medium existing inside of the container 2 and flowing outside of the floats (1-n). This phenomenon can be observed from the outside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for removing heat medium from a system of equipment using heat medium without removing the heat medium liquid.
The present invention relates to a heat medium liquid concentration meter which can maintain the accuracy even in a wide temperature range at low cost.

[0002]

2. Description of the Related Art Various developments have been made on the measurement of the concentration of a heat medium liquid. For example, a specific gravity meter composed of a heat medium liquid and a foreign material in a heat medium liquid circulation system is provided in the heat medium liquid. The concentration of the heat medium is calculated by floating the medium and measuring the specific gravity of the heat medium.

Further, Japanese Patent Application Laid-Open No. Sho 62-19 which utilizes this principle
The antifreeze concentration detector disclosed in Japanese Patent Application Publication No. 9662 discloses a specific gravity meter composed of a cooling water circulating system and a foreign material which is made of a material different from that of a cooling water circulating system. The position is detected and displayed by a photo sensor or the like.

[0004]

However, in the above-mentioned conventional structure, since the float of the cooling water circulation system and a foreign material are used, the specific gravity of the cooling water in the circulation system due to a temperature change in the circulation system is reduced. There is a drawback that the specific gravity indication value changes due to the difference between the change amount and the change amount of the specific gravity of the float.

Therefore, the present invention solves the conventional problem. By using a float in which a material of the same quality as the cooling water of the cooling water circulation system is enclosed, the circulation is performed even if a temperature change occurs in the circulation system. It is an object of the present invention to provide a heat transfer medium concentration meter capable of performing accurate concentration measurement in a wide temperature range because there is almost no difference between a change amount of a specific gravity of the cooling water in the system and a change amount of a specific gravity of the float. .

Further, in the conventional antifreeze liquid concentration detector, since the detection display is performed by a photo sensor or the like, there is a disadvantage that the detector is large and the equipment cost is high.

Accordingly, the present invention is to solve the conventional problem, and a heat medium concentration meter capable of controlling the concentration of a heat medium in a circulation system at a lower cost than before by visually checking the ups and downs of the float. The purpose is to provide.

[0008]

According to the present invention, there is provided, as a first means, a container having a window through which the inside can be viewed, and a float provided inside the container. A heat medium of a predetermined concentration is sealed inside.

As a result, the float floats up and down.

Further, a heat medium liquid of the same quality as the heat medium liquid inside the container and flowing outside the float is enclosed inside the float.

Thus, accuracy can be maintained even in a wide temperature range.

The second means includes a container having a window through which the inside can be viewed, and a plurality of floats provided inside the container, and a plurality of heat transfer media having different predetermined concentrations inside the plurality of floats. Is enclosed.

As a result, the plurality of floats move up and down, respectively.

Further, a heat medium liquid of the same quality as the heat medium liquid flowing inside the container and flowing outside the float is enclosed in the float.

Thus, accuracy can be maintained even in a wide temperature range.

Further, the third means includes an outer diameter, an inner diameter, and a mass of the float described in the first means or the second means, a specific gravity of the heat transfer fluid sealed in the float, and the inside of the vessel. And the specific gravity of the heat transfer fluid flowing outside the float is given by a predetermined relational expression.

As a result, the floats rise and fall, respectively.

As a fourth means, the freezing temperature of the heat transfer fluid inside the float according to the first means or the second means is the inside of the vessel, and the freezing temperature of the heat transfer fluid outside the float is high. It is set to be lower than the temperature.

Thus, the heat transfer fluid inside the float is inside the container and does not freeze before the heat transfer fluid outside the float.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 comprises a container having a window through which the inside can be viewed, and a float provided inside the container, and a heat medium having a predetermined concentration is sealed inside the float. The floating member has an action of lifting and lowering due to a specific gravity difference between the heat medium liquid inside the container and outside the floating member and the floating member.

Further, inside the float is inside the container.
In addition, a heat medium liquid of the same quality as the heat medium liquid flowing outside the float is sealed therein, and has an effect of maintaining accuracy even in a wide temperature range by removing the influence of a temperature change.

According to a second aspect of the present invention, there is provided a container having a window through which the inside can be viewed, and a plurality of floats provided inside the container, wherein the plurality of floats have different heat densities different from each other. A medium liquid is sealed, and the plurality of floats have an action of floating up and down, respectively, due to a specific gravity difference between the heat medium liquid inside the container and outside the plurality of floats and the plurality of floats.

Further, a heat medium liquid which is the same as the heat medium liquid flowing inside the container and flowing outside the plurality of floats is sealed inside the plurality of floats. It has the effect of maintaining accuracy even within the temperature range.

[0024] The invention described in claim 3 is the first invention.
Alternatively, in the invention according to claim 2, the outer diameter, the inner diameter, and the mass of the float, the specific gravity of the heat medium liquid sealed inside the float, and the specific gravity of the heat medium liquid inside the vessel and flowing outside the float. Is given by a predetermined relational expression, and has an effect that the float floats up and down due to a specific gravity difference between the heat medium liquid inside the vessel and outside the float and the float.

The invention described in claim 4 is the first invention.
Or in the invention according to claim 2, wherein the freezing temperature of the heat transfer fluid inside the float is inside the container, and set so as to be lower than the freezing temperature of the heat transfer fluid outside the float. The heat transfer fluid inside the float is inside the container and has an action of not freezing before the heat transfer fluid outside the float.

[0026]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a heat medium liquid concentration meter according to an embodiment of the present invention. Note that the same components as those of the related art are denoted by the same reference numerals, and detailed description thereof will be omitted.

(Embodiment 1) FIG. 1 is a configuration diagram of a heat medium liquid concentration meter according to Embodiment 1 of the present invention. The heat medium concentration meter according to the present embodiment includes a container 2 having a window 1 through which the inside can be viewed, and a float 3 provided inside the container 2, and a predetermined concentration heat medium is sealed inside the float 3.

Here, the float 3 is preferably made of a hollow thin resin, and the condition under which the float 3 floats in the heat medium flowing inside the container 2 and outside the float 3 is given by (Equation 1). The condition under which the float 3 sinks is given by (Equation 2).

[0029]

(Equation 1)

[0030]

(Equation 2)

For example, a heat medium having a predetermined concentration such that the concentration of the heat medium flowing inside the container 2 and flowing outside the float 3 is 30% and satisfies (Equation 1) is sealed in the float 3 so that the container is sealed. If the concentration of the heat medium flowing inside the float 2 and outside the float 3 is less than 30%, the float 3 sinks as shown by a broken line a.

Next, if the concentration of the heat transfer fluid flowing inside the container 2 and outside the float 3 is 30% or more, the float 3 floats as shown by a broken line b. By visually observing this phenomenon through the window 1, it is possible to confirm whether or not the concentration of the heat transfer medium flowing inside the container 2 and outside the float 3 is equal to or higher than a predetermined value.

Further, by enclosing the heat medium liquid inside the container 3 inside the float 3 and having the same quality as the heat medium liquid flowing outside the float 3, the influence of temperature change can be eliminated, and the heat medium liquid can be removed within a wide temperature range. Can also maintain accuracy.

Next, the freezing temperature of the heat medium inside the float 3 is set to be lower than the freezing temperature of the heat medium inside the vessel 2 and outside the float 3. Is inside the container 2 and does not freeze before the heat transfer fluid outside the float 3.

(Embodiment 2) FIG. 2 is a configuration diagram of a heat medium liquid densitometer according to Embodiment 2 of the present invention. The heat medium liquid concentration meter according to the present embodiment includes a container 2 having a window 1 through which the inside can be viewed, and two floats 4 a and 4 b provided inside the container 2. A heat medium having a predetermined concentration is sealed so that the heat medium flowing outside the float 4a floats at a concentration of 30%. Also, inside the container 2 inside the float 4b,
In addition, a heat medium liquid having a predetermined concentration is sealed so that the heat medium liquid flowing outside the float 4b floats at a concentration of 35%.

Here, the floats 4a and 4b are preferably made of hollow thin resin, and the condition that the floats 4a and 4b float in the heat medium flowing inside the vessel 2 and outside the floats 4a and 4b. Is given by (Equation 1).
The condition under which a and the float 4b sink is given by (Equation 2).

For example, the inside of the container 2 and the float 4a
If the concentration of the heat transfer fluid flowing outside the float 4b is less than 30%, the floats 4a and 4b sink as indicated by broken lines a and c, respectively. If the concentration is 30% or more and less than 35%, the float 4a Floats as shown by a broken line b, and the float 4b sinks as shown by a broken line c.

If the concentration is higher than 35%, the floats 4a and 4b float as indicated by broken lines b and d, respectively. By visually observing this phenomenon through the window 1, it is possible to confirm whether or not the concentration of the heat transfer fluid flowing inside the container 2 and outside the floats 4a and 4b is within a predetermined range.

Further, the influence of temperature change can be eliminated by enclosing the heat medium liquid inside the container 2 inside the floats 4a and 4b and having the same quality as the heat medium liquid flowing outside the floats 4a and 4b. The accuracy can be maintained even in a wide temperature range.

Next, the freezing temperature of the heat medium inside the floats 4a and 4b is set to be lower than the freezing temperature of the heat medium inside the vessel 2 and outside the floats 4a and 4b. The heat transfer fluid inside the floats 4a and 4b is inside the container 2 and does not freeze before the heat transfer fluid outside the floats 4a and 4b.

[0041]

As described above, the invention according to claim 1 comprises a container having a window through which the inside can be viewed, and a float provided inside the container, and a heat medium having a predetermined concentration is provided inside the float. Liquid, and inside the container, and the specific gravity difference between the heat transfer fluid and the float outside the float,
The float moves up and down. By visually observing this phenomenon through the window, it is possible to confirm whether or not the concentration of the heat transfer fluid flowing inside the container and outside the float is equal to or higher than a predetermined value.

Further, inside the float is inside the container.
In addition, by enclosing a heat medium liquid of the same quality as the heat medium liquid flowing outside the float and removing the influence of temperature change, accuracy can be maintained even in a wide temperature range.

According to a second aspect of the present invention, there is provided a container having a window through which the inside can be viewed, and a plurality of floats provided inside the container, wherein different heat mediums having different predetermined concentrations are provided inside the plurality of floats. The plurality of floats float up and down due to a specific gravity difference between the heat medium liquid inside the container and outside the plurality of floats and the plurality of floats. By visually observing this phenomenon through the window, it is possible to confirm whether or not the concentration of the heat transfer fluid flowing inside the container and outside the plurality of floats is within a predetermined range.

Further, a heat medium liquid of the same quality as the heat medium liquid flowing inside the container and flowing outside the plurality of floats is sealed inside the plurality of floats. Accuracy can be maintained even within the temperature range.

According to a third aspect of the present invention, there is provided a heat medium liquid densitometer having the same structure as the first or second aspect of the invention in addition to the first or second aspect of the invention. A diameter, an inner diameter, a mass, a specific gravity of the heat medium liquid sealed inside the float, and a specific gravity of the heat medium liquid inside the container and flowing outside the float, given by a predetermined relational expression; The float floats up and down due to the specific gravity difference between the heat medium liquid inside and outside the float and the float.

According to a fourth aspect of the present invention, there is provided a heat medium concentration meter having the same structure as the first or second aspect of the present invention in addition to the first or second aspect of the present invention. The freezing temperature of the liquid is inside the container, and is set so as to be lower than the freezing temperature of the heat medium liquid outside the float, and the heat medium liquid inside the float is inside the container,
In addition, it does not freeze before the heat transfer fluid outside the float.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a first embodiment of a heat medium liquid concentration meter according to the present invention.

FIG. 2 is a configuration diagram of Embodiment 2 of a heat medium liquid concentration meter according to the present invention.

[Explanation of symbols]

 1 Window 2 Container 3, 4a, 4b Float

Claims (4)

[Claims] 1. A container having a window through which the inside can be viewed, and a float provided inside the container, wherein the inside of the float is the same as the heat medium liquid flowing inside the container and flowing outside the float. A heat medium liquid concentration meter in which a heat medium liquid of a predetermined concentration is sealed. 2. A container having a window through which the inside can be viewed, and a plurality of floats provided inside the container, and heat flowing inside the container inside the plurality of floats and flowing outside the plurality of floats. A heat medium liquid densitometer characterized in that heat medium liquids of the same quality as the medium liquid and of different predetermined concentrations are enclosed. 3. A predetermined relational expression wherein the outer diameter, the inner diameter, and the mass of the float, the specific gravity of the heat transfer fluid sealed inside the float, and the specific gravity of the heat transfer fluid flowing inside the vessel and outside the float are predetermined. The heat medium liquid densitometer according to claim 1 or 2, further comprising the float provided as follows. 4. The float according to claim 1, wherein the freezing temperature of the heat transfer fluid inside the float is inside the vessel and the float is set to be lower than the freezing temperature of the heat transfer fluid outside the float. The heat medium liquid concentration meter according to claim 2.