JP2000018611A - Gas collection device - Google Patents

Abstract

(57) Abstract: The present invention relates to a gas collecting device for separating and collecting gas in a liquid used in a liquid transfer system, and is portable, and the direction of the liquid transfer device can be freely set to 390 degrees. In this arrangement, the gas component in the circulating liquid is removed, and the amount of residual water in the gas collecting container can be detected. SOLUTION: A gas collecting vessel 12, a liquid inflow path 17 into which a liquid flows, an inlet 19 is located in the gas collecting vessel 12, a liquid outflow path 18 from which the liquid flows out, and a liquid outflow path in the gas collecting vessel. The control means 2 comprises a liquid amount detecting means 21 and a control means 22 provided in the vicinity of an inflow port 19 of the control means 18.
2 indicates that when the detection signal input from the liquid amount detection means 21 reaches a predetermined detection amount, a liquid decrease signal is issued, and the liquid is reduced before the gas component flows into the liquid outflow passage 18. Is to be notified.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas collecting apparatus for separating and collecting gas components in a liquid used in a liquid transfer system.

[0002]

2. Description of the Related Art Conventionally, the gas separation means used in this kind of heat medium circulation circuit is generally the one described in Japanese Utility Model Publication No. 6347958. As shown in FIG. 16, the tank 1 serving as the gas separating means has a heat medium feed pipe 2 and a heat medium return pipe 3 attached to left and right positions on the bottom surface of the tank 1, and a float type water level sensor 4 is provided in the tank 1. It is a configuration that is arranged.

In the above configuration, the heat medium in the tank 1 enters the circulation pump 5 from the heat medium discharge pipe 2 and is pressurized, then heated by the heat exchanger 6 and branched by the flow pipe header 7 to be heated. The pressure is sent to the radiator 8 or the bus heater 9. The heat medium radiated by each radiator flows from the return pipe header 10 to the heat medium return pipe 3 and enters the tank 1. The gas component contained in the heat medium that has flowed into the tank 1 floats in the tank 1 and is discharged to the upper part of the tank 1. Only the liquid component of the heat medium is sent from the circulation pump 5 to the circulation circuit, and the heat medium is degassed. Circulates in a state where When the heat medium decreases due to evaporation or the like and the water level reaches a level close to the bottom surface, the water level is detected by the water level sensor to notify that the water supply state has been established.

[0004]

However, in detecting the water level of a tank, which is an air collecting device used in the above-mentioned conventional liquid transfer system, a water level detection structure in a fixed direction attached to a stationary liquid transfer device is used. Has become. Therefore, in a portable device in which the direction of the liquid transfer device can be freely changed by 360 degrees, there is a problem that it becomes impossible to detect the water level or separate the gas component in the heat medium and send out only the liquid component to the circulation circuit. there were.

[0005]

In order to solve the above-mentioned problems, a liquid collecting apparatus according to the present invention comprises a liquid inlet for supplying liquid,
A gas collection container having a liquid inflow path into which liquid flows, an inflow port of the outflow path located in the container and a liquid outflow path through which the liquid flows out, and a liquid outflow path in the gas collection container near an inflow port of the liquid outflow path; It is provided with a liquid amount detecting means provided and a control means, wherein the control means emits a liquid decrease signal when the detection signal input from the liquid amount detecting means reaches a predetermined detection amount. is there.

According to the above-mentioned invention, even if the installation direction of the gas collecting device is changed, the gas component in the collecting container is collected in the container without flowing into the liquid outflow path, and the gas is removed from the liquid. Sent in state. Further, by detecting the amount of residual water in the gas collection container, it is notified that the liquid has decreased before the gas component flows into the liquid outflow passage. Therefore, it is necessary to maintain the liquid conveyance and circulation system in a stable operation state. Can be.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A liquid collecting apparatus according to the present invention has a liquid inlet for supplying liquid, a liquid inflow path into which liquid flows, and a liquid outflow path in which the inflow port of the outflow path is located in the container and the liquid flows out. A gas collecting container having a liquid outlet detecting means provided near an inlet of a liquid outflow passage in the gas collecting container; and a control means, wherein the control means detects a detection amount inputted from the liquid amount detecting means. When the signal reaches a preset detection amount, a liquid decrease signal is issued.

[0008] Regardless of the orientation of the gas collecting container, the gas component flowing from the liquid inflow passage accumulates above the inlet of the liquid outflow passage, thereby preventing the gas component from flowing into the liquid outflow passage. At the same time, it is notified that the liquid has decreased before the gas component flows into the liquid outflow passage, so that the liquid transfer and circulation system can be maintained in a stable operation state.

[0009] The liquid outlet of the gas collecting container is such that the inflow port is movable to the bottom with respect to the liquid level in the gas collecting container by the action of gravity.

[0010] Since the outlet of the liquid outflow passage of the gas collecting container moves in the bottom direction, the limit liquid level of the gas component collection amount decreases, and the gas component collection amount increases.

Further, the liquid outflow passage of the gas collecting container is provided with liquid amount detecting means on both sides of a water outlet provided substantially near the front end of the inflow port of the liquid outflow passage.

[0012] The remaining liquid amount in the gas collecting container is detected on the water surface above the water inlet.

Further, the liquid outflow passage of the gas collecting container is provided with liquid amount detecting means on both sides of the end face of the inlet of the liquid outflow passage.

Further, the amount of liquid remaining in the gas collecting container is detected on the water surface above the end face of the inlet.

Further, the liquid amount detecting means of the gas collecting container has a structure in which one or more self-heating thermistors are provided on both sides of a water outlet provided substantially near the front end of the liquid outflow passage.

The resistance change of the self-heating thermistor when the amount of liquid remaining in the gas collecting container is reduced and the position of the self-heating thermistor changes from liquid to gas is detected.

Further, the liquid amount detecting means of the gas collecting device is provided with a heating element with fail-safe substantially at the end of the liquid outflow passage.

Then, the resistance change of the fail-safe heating element when the remaining liquid amount in the gas collecting container is reduced and a part of the fail-safe heating element changes from liquid to gas is detected. It was done.

Further, the liquid amount detecting means of the gas collecting device is provided with a capacity sensor substantially at the front end of the liquid outflow passage.

Then, the amount of liquid remaining in the gas collecting container is reduced, and a change in the capacity of the capacity sensor when a part of the capacity sensor changes from liquid to gas is detected.

Further, the detection amount set by the control means is a liquid amount in which the liquid amount in the gas collecting container has a set margin amount with respect to the limit liquid amount. Driving is possible.

After the liquid decrease signal is generated, the apparatus can be operated even if an emergency use occurs.

Further, the control means of the gas collecting device has a notifying means, and activates the notifying means when the detection signal inputted from the liquid amount detecting means reaches a preset detection amount.

When the control means receives a signal from the liquid amount detecting means for detecting the set remaining liquid amount, the control means issues a drive signal for activating the notifying means and uses the fact that the liquid has been supplied. To let the person know.

The control means of the gas collecting device is a liquid circulation circuit having a heating means and a liquid conveying means in a liquid outflow path, and the detection signal inputted from the liquid amount detecting means is changed to a predetermined detection amount. When reaching, the heating means stop signal is generated.

When the control means receives a signal indicating detection of the set remaining liquid amount from the liquid amount detection means, the control means issues a signal for stopping the operation of the heating means and stops the heating. This is to prevent abnormal heating or the like due to gas mixing in the circuit.

The control means of the gas collecting device is a liquid circulating circuit having a heating means and a liquid conveying means in a liquid outflow passage, and the detection signal inputted from the liquid amount detecting means is changed to a predetermined detection amount. When the temperature has reached, after the heating means is stopped, a signal for stopping the operation of the liquid transport means is generated.

When the control means receives a signal indicating the detection of the set remaining liquid amount from the liquid amount detection means, the control means issues a signal for stopping the operation of the heating means and stops the heating.
A signal for stopping the operation of the liquid transfer means is issued to stop the transfer of the heated liquid. After the stop of the heating, the overheating of the heating section is prevented by the cooling action of the transfer of the liquid.

[0029]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a horizontal sectional view of a heat medium heating / transporting device in which the gas collecting device according to claim 1 of the present invention is incorporated, FIG. 2 is a sectional view of the gas collecting device, and FIG. 3 is a circuit diagram of control means. is there.

1 to 3, reference numeral 11 denotes a gas collecting device, and a gas collecting container 12 and an upper wall 1 of the liquid collecting container 12.
3 has a liquid inlet 14 and liquid inlets 17 and liquid outlets 18 on opposing side walls 15 and 16. The liquid outflow passage 18 is located at the center of each side wall and extends into the container 12 so that the inflow port 19 is substantially at the center of the container. The water inlet 14 is sealed with a lid 20. Reference numeral 21 denotes a liquid amount detecting means attached near the inflow port 19 of the liquid outflow passage 18 and is constituted by a self-heating thermistor. Reference numeral 22 denotes a control unit that receives a detection signal of the liquid amount detection unit 21 and issues a liquid amount decrease signal. Numeral 23 is a notifying means for receiving the liquid amount decrease signal output from the control means 22 and notifying the outside of the liquid amount decreasing state. La is the set detection amount liquid level.

Numeral 24 denotes a heating medium heating / transporting apparatus main body, which is a heating means such as a combustion heating means 25, a combustion safety device 26, and a heat exchange means 2.
7, a thermoelectric conversion unit 28, a fuel tank 29, and a liquid transfer unit 30 inserted between the combustion heating unit 25 and the heat exchange unit 27. The liquid transfer means 30 is driven by the electromotive force of the thermoelectric conversion means 28. 31 is a heat radiation means.

In the control circuit, reference numeral 32 denotes a detection signal input terminal, and reference numeral 33 denotes a transistor for driving the notification means 23. The notification means 23 is connected to an output terminal 34 for the liquid reduction signal.

Next, the operation will be described. When the combustion heating means 25 of the heating medium heating / conveying apparatus 24 starts combustion and starts heating, the temperature of the upper surface of the thermoelectric conversion means 28 rises, and the temperature difference between the lower surface and the thermoelectric conversion means 28 decreases. Then, the thermoelectric converter 28 generates power.
The generated electric power is supplied to the liquid transfer means 30, and the liquid transfer means 30 operates to circulate the heat medium. The circulating heat medium is heated by the heat of combustion of the combustion heating means 25 via the heat exchange means 27 and sent to the heat radiation means 31. The heat medium radiated by the heat radiating means 31 flows into the gas collecting device 12 from the liquid inflow path 17. The gas component in the heat medium floats in the heat medium flowing into the gas collecting device 12, and the gas component in the heat medium is separated. The heat medium from which the gas components have been removed flows from the inflow port 19 through the liquid outflow path 18 and flows into the liquid transfer means 30 to make a round of the circulation circuit.

When the amount of the heat medium in the gas collecting container 12 is equal to or higher than the detected liquid level La, the self-heating thermistor of the liquid amount detecting means 21 is in the heat medium and has a large heat transfer coefficient and a small temperature rise in the thermistor portion. Therefore, it shows a high resistance value. The control means 22 compares the input resistance value with the set resistance value as a voltage dividing ratio of the transistor 33, turns off the transistor 33, does not output the liquid reduction signal from the control means 22, and reduces the amount of heat medium. This indicates that the amount is equal to or larger than the set amount.

The heating circulation operation is repeated, and the gas component accumulated in the upper part of the gas collecting container 12 increases due to the vaporization of the heat medium and the permeation through the gap, and the liquid level reaches the liquid level detecting means 21. Is reached, the self-heating thermistor of the liquid amount detecting means 21 is exposed to the air, the heat transfer coefficient of the heat generating portion decreases, the temperature rise of the thermistor portion increases, and the resistance value of the thermistor decreases. The control means 22 compares the reduced resistance value input from the input terminal 32 with the set resistance value as a voltage dividing ratio of the transistor 33,
The transistor 33 is turned on, and the control unit 22 outputs a liquid decrease signal indicating that the heat medium amount has become equal to or less than the set amount. The notifying means 23 is operated by the outputted liquid decrease signal, and the outside is notified that the heat medium amount has reached the limit amount.

According to the present embodiment, since the gas component in the heat medium is completely removed and only the liquid component flows into the heat medium conveying means 30, stable heat medium conveyance is possible. Further, since the liquid amount detecting means 21 outputs the liquid amount decreasing state as an external signal, the liquid can be replenished at an early stage, and the inflow port 19 of the outflow passage 18 of the gas collecting container 12 is not exposed on the liquid surface. In addition, it is possible to prevent gas components from flowing into the circulation circuit.

FIG. 4 is a cross-sectional view of the gas collecting container 12 showing a liquid outflow passage to which the liquid amount detecting means of the second embodiment is mounted. The difference from the first embodiment is that the liquid outflow path 18 is a flexible liquid outflow path 36 in which the inflow port 35 can move in the bottom direction with respect to the liquid level of the gas collecting container 12 by the action of gravity. Lb is a set detection amount liquid level.

The components having the same reference numerals as in the first embodiment have the same structure, and the description is omitted. Next, the operation will be described. When the gas collecting container 12 is placed horizontally, the liquid outflow path 36 is curved by gravity, and the inlet 35 moves below the central horizontal plane of the collecting container 12. Since the liquid decrease signal generation line is lowered to Lb and the gas trapping capacity is increased, the gas trapping container 12 can be downsized.

The liquid outflow passage to which the liquid amount detecting means of the third embodiment is mounted is shown in the sectional view of the gas collecting container 12 in FIG. 5, and the vertical arrangement is shown in FIGS. The difference from the first embodiment is that a liquid outlet 37 is provided near the inflow port 19 in the liquid outflow passage 18, and liquid amount detecting means 38 and 39 are attached to both sides of the water outlet 37. Lc, Ld, and Le are the set detection liquid levels in the respective installation states of the collection container 12.

The components having the same reference numerals as in the first embodiment have the same structure, and the description is omitted. Next, the operation will be described. When the collecting container 12 is installed horizontally, the operation is the same as that of the first embodiment. However, the detected liquid level set to be detected by the liquid amount detecting means 38 is Lc. When the heating and circulating operation is repeated and the gas component accumulated in the upper part of the gas collecting container 12 increases and the liquid level decreases, and the liquid level reaches the set detection amount liquid Lc, the self-heating thermistor of the liquid amount detection means 38 The whole is exposed to the air, the heat transfer coefficient of the heat generating portion decreases, the temperature rise of the thermistor portion increases, and the resistance value of the thermistor decreases. The control means 22 compares the input reduced resistance value with the set resistance value, determines that the heat medium amount has become equal to or less than the set amount, outputs a liquid decrease signal, and activates the notification means 23.

Next, in the direction in which the liquid inflow path 17 is placed downward as shown in FIG. 6, the detection amount liquid level set to be detected by the liquid amount detection means 38 is Ld. When the heating and circulating operation is repeated and the gas component accumulated in the upper part of the gas collecting container 12 increases and the liquid level decreases, and the liquid level reaches the set detection amount liquid level Ld, the self-heating thermistor of the liquid amount detection means 39 Is exposed to the air, and the resistance of the thermistor decreases. The control means 22 compares the input reduced resistance value with the set resistance value, determines that the heat medium amount has become equal to or less than the set amount, outputs a liquid decrease signal, and activates the notification means 23.

In the direction in which the liquid inflow path 17 is placed upward as shown in FIG. 7, the detected liquid level set to be detected by the liquid amount detecting means 38 is Le. When the heating and circulating operation is repeated and the gas component accumulated in the upper part of the gas collecting container 12 increases and the liquid level decreases, and the detected liquid level at which the liquid level is set becomes Le, the self-heating of the liquid amount detecting means 38 occurs. The thermistor is entirely exposed to air, and the resistance of the thermistor decreases. The control means 22 compares the input reduced resistance value with the set resistance value, determines that the heat medium amount has become equal to or less than the set amount, outputs a liquid decrease signal, and activates the notification means 23.

According to the present embodiment, the liquid reduction signal is output in a state where the collected gas component does not flow into the outflow path regardless of whether the gas collecting container 12 is placed in the horizontal or vertical direction. Can be. Further, since the detection signal is a resistance value in a state where the self-heating thermistor is completely exposed to the air, the reliability of liquid level detection is improved.

The same operation is performed when a cutout groove is formed in the liquid outlet passage 18 from the inlet 19 instead of the opening 37.

The liquid amount detecting means of the fourth embodiment is shown in FIGS.
Shown in The difference from the third embodiment is that the self-heating thermistor 21 serving as the liquid amount detecting means is connected to the linear thermosensitive heating element 40 with a fail-safe, the inlet of the liquid outflow passage 18 is provided with a notch groove 41, and the notch groove 41 is used. The temperature-sensitive heating element 40 with fail-safe is disposed on both sides of the bottom end surface portion 42 of the sensor. It is just now possible to detect the amount.

When the gas collecting container 12 is placed horizontally, the set liquid level of the detection liquid amount is set to Lf in FIG.
When the inflow port 19 of the liquid outflow path 18 is downward, the set liquid level of the detected liquid amount is Lg in FIG.
Is upward, the set liquid level of the detection liquid amount is Lh in FIG.

The components having the same reference numerals as in the first embodiment have the same structure, and the description is omitted. Next, the operation will be described.
When the gas collecting container 12 is placed horizontally, the heating and circulating operation is repeated, and the gas component accumulated in the upper portion of the gas collecting container 12 increases, the liquid level decreases, and the detected liquid amount is set. When the surface Lf is reached, a part of the fail-safe heating element 40 of the liquid amount detection means 38 is exposed to the air, the heat transfer coefficient of the heating section decreases, and the temperature rise of the fail-safe heating element 40 increases, The resistance value of the heating element 40 with fail-safe decreases. The control means 22 compares the input reduced resistance value with the set resistance value, determines that the heat medium amount has become equal to or less than the set amount, outputs a liquid decrease signal, and activates the notification means 23.

Next, when the inlet 19 of the liquid outflow passage 18 of the gas collecting container 12 is directed downward, the gas component increases and the liquid level decreases, and when the liquid level reaches the set detection level liquid level Lg, When a part of the fail-safe heating element 40 of the amount detecting means 38 is exposed to the air, the resistance value of the fail-safe heating element 40 decreases. The control means 22 compares the inputted reduced resistance value with the set resistance value, determines that the heat medium amount has become equal to or less than the set amount, outputs a liquid decrease signal, and outputs the liquid decrease signal.
Activate

The liquid outflow passage 18 of the gas collecting container 12
When the inflow port 19 is upward, the gas component increases and the liquid level decreases, and when the liquid level reaches the set detection amount liquid level Lh, a part of the fail-safe heating element 40 of the liquid amount detection means 38 is turned off. When exposed to the air, the resistance value of the fail-safe heating element 40 decreases. The control means 22 compares the input reduced resistance value with the set resistance value, determines that the heat medium amount has become equal to or less than the set amount, outputs a liquid decrease signal, and outputs the liquid decrease signal.
Activate 3

According to the present embodiment, the liquid level can be detected regardless of the orientation of the gas collecting container 12 by 360 degrees with one detection sensor, and the control means is simplified together with the detection unit, thereby improving reliability and reducing cost. Can be

FIG. 11 shows the liquid amount detecting means of the fifth embodiment.
The difference from the third embodiment is that the self-heating thermistor 21 serving as a liquid amount detecting means is replaced with a capacity sensor 43 and the gas collecting container 12 is used.
Is positioned so that the liquid amount can be detected by one sensor regardless of the direction in which it is placed vertically.

Next, the operation will be described. When the gas collecting container 12 is placed horizontally, the gas component accumulated in the upper part of the gas collecting container 12 increases, the liquid level decreases, and when the liquid level reaches the set detection amount liquid level Li, the liquid level increases. The upper portion between the electrodes 44 and 45 of the capacitance sensor 43 serving as the amount detection means 38 becomes air, and the capacitance of the capacitance sensor 43 increases. The control means 22 compares the input reduced capacity value with the set capacity value, determines that the heat medium amount has become equal to or less than the set amount, outputs a liquid decrease signal, and activates the notification means 23.

When the liquid outflow path is vertical and the inflow port is placed downward, the detection liquid level serving as the set volume becomes Lj, and when the inflow port is placed upward, it becomes Lk and the same as above. The control unit 22 outputs a liquid reduction signal, and the notification unit 23 operates.

According to this embodiment, since the amount detected by the sensor is not accompanied by a physical effect such as a change in heat transfer and the like, the capacitance value between water and air is detected. High speed and high accuracy can be realized.

FIG. 12 shows a liquid amount decreasing characteristic and a control sequence of the control means 22 of the sixth embodiment. The figure shows the relationship between the amount of decrease in the liquid amount with the operation time and the generation time of the control signal from the control means, where Qs is the liquid decrease signal generation level, and Qc is the limit liquid amount level at which the gas component flows out to the outlet pipe. Show.

Next, the operation will be described. The heating and circulating operation is repeated, the gas component accumulated in the upper part of the gas collecting container 12 increases, the liquid level decreases, and the liquid amount in the gas collecting container 12 becomes a liquid decrease signal. When the generation level is reached, the liquid amount detection means 2
The detection signal is inputted to the control means 22 from the
Reference numeral 2 outputs a liquid decrease signal to activate the notifying means 23.
At this point, the control means 22 is maintained in a control state in which the heating medium transporting apparatus can be operated. When the operation is further continued and the liquid amount in the gas collecting container 12 reaches the gas component suction level, a detection signal is sent from the liquid amount detecting means 21 to the control means 22.
And the control means 22 outputs an operation stop signal to stop the operation of the heating medium transporting apparatus.

After the liquid decrease signal is generated, the operation can be performed in a short time even if an emergency is used, and the heat medium can be supplied without interrupting the operation of the heat medium heating / transporting apparatus.

FIG. 13 is a control circuit diagram of the control means of the seventh embodiment.
Shown in In FIG. 13, the difference from the first embodiment is that a power transistor 47 for driving a timer 46 is connected to the transistor 33 of the first stage, and a contact 48 of the timer 46 is connected to an adsorption coil of the combustion safety device 26 of the combustion heating means 25. 49 is connected.

Next, the operation will be described. The heating and circulating operation is repeated, and the gas level accumulated in the upper part of the gas collecting container 12 increases, so that the liquid level decreases. When the generation level is reached, the transistor 33 is turned on by the signal value input from the liquid amount detection means 21 to the input terminal 32, and the notification means 23 is activated and the power transistor 47 is turned on. When the power transistor 47 is turned on, the timer 46 starts. When the set time elapses, the timer 46 outputs a contact 48
Changes from on to off, the power supply to the adsorption coil 49 is cut off, the safety valve is closed, and the combustion of the combustion heating means 25 stops.

According to the present embodiment, the liquid reduction signal is generated when the gas component in the gas collecting container 12 flows into the heating section in order to activate the notifying means 23 and stop the combustion heating means 25. Overheating of the combustion heating means 25 can be prevented, and safety can be improved.

FIG. 14 is a control circuit diagram of the control means of the eighth embodiment.
FIG. 15 shows a control sequence.

In FIG. 18, the difference from the seventh embodiment is that the timer 46 is a timer 50 having two contacts capable of setting different times, and the first contact 51 is provided with the combustion safety device 2.
That is, the suction coil 49 of No. 6 is connected to the liquid transfer means 30 at the second contact point 52. The second contact 52 is set to turn off after a set time has elapsed after the first contact 51 turns off.

Next, the operation will be described. The heating circulation operation is repeated, the gas component accumulated in the upper part of the gas collecting container 12 increases, the liquid level decreases, and the liquid amount in the gas collecting container 8 becomes a liquid decrease signal. When the generation level is reached, the liquid amount detecting means 21
The signal value input to the input terminal 32 from the
3 turns on, the notifying means 23 is operated, and the power transistor 47 is turned on. When the power transistor 47 is turned on, the timer 50 starts. The timer 50 is turned off after the first contact 51 elapses the set time. When the first contact 51 is turned off, the power supply to the adsorption coil 49 is cut off, the safety valve is closed, and the combustion of the combustion heating means 25 stops. After the combustion of the combustion heating means 25 is stopped, the second contact 52 is turned off after a lapse of a set time. When the second contact 52 is turned off, the power supply to the liquid transport unit 30 is cut off, and the liquid transport unit 30 stops.

According to this embodiment, the liquid decrease signal activates the notifying means 23 and stops the combustion heating means 25, and after a set operation time, the liquid conveying means 3 receives the liquid decreasing signal.
0, the amount of heat accumulated in the combustion heating means 25 is transferred to the heat radiating means 31.
Can be prevented from overheating, and the safety of the heating device can be improved.

[0066]

As is clear from the above description, the gas collecting apparatus of the present invention has the following effects.

In the present invention, the gas component in the heat medium is completely removed by the gas trapping device, and only the liquid component flows into the heat medium conveying means. The detecting means outputs the liquid amount decreasing state as an external signal, the liquid replenishing time is clearly recognized, the liquid replenishment error is eliminated, the inlet of the outflow passage of the gas collecting container is exposed on the liquid surface, and the gas component is removed. It can be prevented from flowing into the circulation circuit.

Further, there is no decrease in the transfer flow rate of the heat transfer means, and the heat transfer efficiency by the heat medium is improved.

In the liquid outflow passage, since the inflow portion to which the liquid amount detecting means is attached is movable to the bottom with respect to the liquid level in the gas collecting container, the gas component collecting capacity is increased. However, it is possible to reduce the size of the gas collecting container or to reduce the number of times of replenishing the heat medium with the same size.

In addition, the gas component is separated and collected in any direction of use of the gas collecting device at 390 degrees, and the liquid amount can be detected by the liquid amount detecting means. Can be held and stored.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a heat medium heating and conveying device using a gas trapping device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of the gas collecting device.

FIG. 3 is a circuit diagram of control means of the gas collecting device.

FIG. 4 is a sectional view of a gas trapping device according to a second embodiment of the present invention.

FIG. 5 is a sectional view of a gas trapping device according to a third embodiment of the present invention.

FIG. 6 is a cross-sectional view of the position of the gas trapping device when the inlet is positioned downward.

FIG. 7 is a cross-sectional view of the gas trapping device when the inlet is arranged upward.

FIG. 8 is a sectional view of a gas trapping device according to a fourth embodiment of the present invention.

FIG. 9 is a state diagram of the liquid amount detecting means when the inlet of the gas collecting device is downward.

FIG. 10 is a state diagram of the liquid amount detecting means when the inlet of the gas collecting device is upward.

FIG. 11 is a sectional view of a liquid amount detecting unit according to a fifth embodiment of the present invention.

FIG. 12 is a diagram illustrating a liquid amount reduction characteristic and a control sequence diagram according to a sixth embodiment of the present invention.

FIG. 13 is a circuit diagram of a control unit according to a seventh embodiment of the present invention.

FIG. 14 is a circuit diagram of a control unit according to an eighth embodiment of the present invention.

FIG. 15 is a sequence diagram of the control means.

FIG. 16 is a principle configuration diagram showing gas separation means in a conventional heat medium circulation circuit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Gas collection device 12 Gas collection container 14 Liquid inlet 17 Liquid inflow path 18 Liquid outflow path 19 Inflow port 21 Liquid amount detection means 22 Control means 23 Notification means 25 Combustion heating means 26 Combustion safety device 30 Liquid conveyance means 37 Communication Water mouth 40 Heating element with fail-safe 43 Capacity sensor

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shinichi Nakajima 1006 Kadoma Kadoma, Osaka Pref. Matsushita Electric Industrial Co., Ltd. F-term (reference) 3L070 AA01 BC02 BC20 BC24 BC33 DD01 DE06 DF15 DG01 DG04 DG10

Claims (11)

[Claims] A gas collection container having a liquid inlet for supplying liquid, a liquid inflow passage into which the liquid flows, and a liquid outflow passage in which an inflow port of the outflow passage is located in the container and the liquid flows out;
A liquid amount detecting means and a control means provided in the vicinity of an inlet of a liquid outflow passage in the gas collecting container, wherein the control means detects a detection signal inputted from the liquid amount detecting means by a preset detection amount; A gas trap that emits a liquid decrease signal when it reaches 2. The gas collecting apparatus according to claim 1, wherein the liquid outflow passage has an inflow port movable to a bottom direction with respect to a liquid level in the gas collecting container by a gravity action. 3. The gas collection device according to claim 1, wherein the liquid outflow passage has liquid amount detecting means on both sides of a water passage provided substantially near the front end of the inflow port of the liquid outflow passage. 4. The gas collecting device according to claim 1, wherein the liquid outflow path has liquid amount detecting means provided on both sides of the end face of the inflow port of the liquid outflow path. 5. The gas collecting apparatus according to claim 1, wherein the liquid amount detecting means includes one or more self-heating thermistors on both sides of the water outlet provided substantially near the front end of the liquid outflow passage. 6. A gas collecting apparatus according to claim 1, wherein said liquid amount detecting means is provided with a fail-safe heating element substantially at an end of said liquid outflow passage. 7. A gas collecting apparatus according to claim 1, wherein said liquid amount detecting means includes a capacity sensor provided substantially at a front end of said liquid outflow passage. 8. The detection amount set by the control means is a liquid amount in which the liquid amount in the gas collecting container has a set margin amount with respect to the limit liquid amount, and is used after the liquid decrease signal is generated. The gas collection device according to claim 1, wherein the gas collection device can be operated. 9. The gas collection device according to claim 1, wherein the control means has a notifying means, and activates the notifying means when a detection signal input from the liquid amount detecting means reaches a predetermined detection amount. . 10. A control circuit comprising: a liquid circulating circuit having a heating means and a liquid transport means in a liquid outflow path, wherein when a detection signal input from the liquid amount detection means reaches a predetermined detection amount, 2. The gas trapping device according to claim 1, wherein the gas trapping device generates a heating unit stop signal. 11. A liquid circulation circuit having a heating means and a liquid conveying means in a liquid outflow path, wherein the control means is adapted to detect when a detection signal input from the liquid amount detection means reaches a predetermined detection amount. The gas collection device according to claim 1, wherein after the heating unit is stopped, the liquid conveyance unit operation stop signal is generated.