JP2009121765A - Temperature conditioning apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a temperature conditioning water unit, confirming the liquid level position of a circulation liquid without any increase in number of parts. <P>SOLUTION: This temperature conditioning water unit includes: a pipeline disposed in a floor; a heat exchanger for heating the circulating liquid circulated through a passage; an expansion tank 7 for absorbing the circulating liquid 8 in the passage for a volume expanding due to a temperature difference; and a circulating pump for circulating the circulating liquid 8 in the passage. The expansion tank 7 includes a container 7a storing the circulating liquid 8, a liquid supply port 7c provided in the container 7a, and a projection-like liquid level position gauge 7d provided integral with the base of the container 7a in a portion observed from the liquid supply port 7c to confirm the liquid level position of the circulating liquid 8 in the container 7a. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a temperature control device, and more particularly to a temperature control device including an expansion tank for absorbing a volumetric volume in which circulating fluid in a path expands due to a temperature difference.

  In recent years, not only an air conditioner but also a temperature control device capable of performing floor heating is becoming popular as equipment for maintaining a favorable indoor environment. Generally, the temperature control device is composed of a floor heating panel laid on the floor of a house, a heat exchanger for heating the circulating fluid circulating in the path, and a volume in which the circulating fluid in the path expands due to a temperature difference. It is equipped with an expansion tank for absorbing water and a circulation pump that circulates the circulating fluid in the path, and floor heating is performed by circulating the heated circulating fluid through a pipe provided in the floor heating panel. .

  In the temperature control apparatus as described above, at the time of construction or the like, the circulating liquid is supplied from a liquid supply port provided in the expansion tank, and the circulating liquid is introduced into the path (for example, see Patent Document 1). Patent Document 1 discloses a temperature control device including an expansion tank provided with a water supply port for water supply on the upper surface of a container. The tip of a hose connected to a water supply is inserted into the water supply port. Water supply work in the route.

  However, in the expansion tank of the temperature control device disclosed in Patent Document 1, the water level in the tank is confirmed from the water supply port provided on the upper surface of the container at the time of water supply work or at the time of checking the remaining amount. There was an inconvenience that the water level was difficult to understand.

  Therefore, various tanks that can easily confirm the water level stored in the container have been proposed (see, for example, Patent Documents 2 to 5). Patent Document 2 discloses a tank in which a buoyant body that can move up and down according to the water level of water injected into a container is made visible through a window formed in a housing containing the container. Yes. Moreover, in patent document 3, while providing an opening part in the upper surface of a housing | casing so that light may reflect in the surface of the water stored in a container, and a lens is fitted in the opening part, water enters. Contrast is produced between the part that is present and the part that is not, so that the water level can be easily confirmed from the window formed in the housing. Patent Document 4 discloses a tank having a float that is pivotally supported in a container and whose rotational position changes according to the water level in the container, and an electric circuit that detects the rotational position of the float. Is disclosed. Further, Patent Document 5 discloses a tank provided with a sensor for detecting the running out of water stored in a container.

Japanese Patent Application Laid-Open No. 2002-195583 JP 2000-177746 A Japanese Patent Application Laid-Open No. 2002-213779 JP 2004-264193 A Japanese Utility Model Publication No. 5-18017

  However, in the tank described in Patent Document 1, a buoyant body that indicates the water level in the container is required, and a window portion that allows the buoyant body to be visually recognized must be provided in the housing. As a result, there are problems that the number of parts increases as much as the buoyant body is provided and the configuration of the housing becomes complicated. Further, even in the tank described in Patent Document 3, a lens is required to cause contrast between a portion containing water and a portion not containing water, and an opening and a water level for fitting the lens are provided. A window for visual recognition must be provided in the housing. As a result, there are problems that the number of parts increases as much as the lens is provided and that the structure of the housing becomes complicated. Also, the water level detection device described in Patent Document 4 requires a float and an electric circuit to detect the water level of the tank, so that there is a problem in that the number of parts increases by the amount of the float and the electric circuit. Further, the tank described in Patent Document 5 also requires a sensor that detects running out of water, and there is a problem that the number of components increases by the amount of the sensor and a circuit that detects an electrical signal from the sensor.

  Accordingly, the present invention has been made to solve the above-described problems, and an object thereof is to provide a temperature control device capable of confirming the liquid level position of the circulating fluid without increasing the number of parts. .

  According to a first aspect of the present invention, there is provided a temperature control apparatus comprising: a pipe disposed on a floor; a heat exchanger for heating a circulating fluid circulating in the path; and a volume integral in which the circulating liquid in the path expands due to a temperature difference. And a circulation pump that circulates the circulating fluid in the path, and the expansion tank includes a container that stores the circulating fluid, and a liquid supply port that is provided in the container. And a projecting liquid level gauge that is provided integrally with the inner peripheral surface of the container at a location that is visible from the liquid supply port, and that enables the liquid level position of the circulating fluid in the container to be confirmed.

  In this temperature control device, since the liquid level position gauge is provided at a location that is visible from the liquid supply port, the operator can visually recognize the liquid level position gauge through the liquid supply port. Since the protruding liquid level gauge is the target of comparison with the circulating fluid level, the operator checks the circulating fluid level by comparing the liquid level gauge with the circulating fluid level. can do. As a result, it is possible to prevent the circulating fluid from overflowing at the time of supplying the circulating fluid, and to supply an appropriate amount of the circulating fluid. In addition, since the liquid level position gauge is provided integrally on the inner peripheral surface of the container, the number of parts does not increase unlike when a separate water level detection device such as a float switch or a sensor is used.

  A temperature control device according to a second invention is the temperature control device according to the first invention, wherein the liquid level position gauge protrudes upward from the bottom surface of the container.

  In this temperature control apparatus, since the liquid level gauge protrudes upward from the bottom surface of the container, the protruding amount of the liquid level gauge that protrudes from the liquid level changes according to the liquid level position of the circulating liquid. Thereby, the operator can confirm the liquid level position of circulating fluid easily.

  A temperature control apparatus according to a third aspect of the present invention is the temperature control apparatus according to the second aspect of the present invention, wherein the liquid level position gauge is formed so that the cross-sectional area decreases stepwise from the bottom surface of the container upward.

  In this temperature control device, the area of the liquid level position gauge protruding from the liquid level changes according to the level of the circulating liquid. Thereby, the liquid level position of the circulating fluid can be confirmed more easily.

  A temperature control device according to a fourth invention is the temperature control device according to any one of the first to third inventions, wherein the liquid supply port is provided on the upper surface of the container, and the liquid level position gauge is It is provided in a portion corresponding to the liquid supply port on the bottom surface.

  In this temperature control device, it is possible to easily realize a liquid level position gauge visible from the liquid supply port.

  A temperature control apparatus according to a fifth aspect of the present invention is the temperature control apparatus according to any of the first to fourth aspects of the present invention, wherein the expansion tank further includes a support portion that supports the liquid level position gauge.

  In this temperature control device, it is possible to prevent the liquid level position gauge from tilting due to distortion during molding or distortion due to temperature change.

  A temperature control device according to a sixth invention is the temperature control device according to any one of the first to fifth inventions, wherein the liquid supply port is provided on the upper surface of the container and the liquid supply port is provided on the upper surface of the container. A rib portion is erected so as to surround the mouth.

  In this temperature control device, the circulating fluid spilled around the liquid supply port can be prevented from spreading to the surroundings. As a result, it is possible to prevent electrical components and the like provided in the temperature control device from being immersed in the circulating liquid.

  As described above, according to the present invention, the following effects can be obtained.

  In the first invention, the operator can visually recognize the liquid level gauge through the liquid supply port. Since the protruding liquid level gauge is the target of comparison with the circulating fluid level, the operator checks the circulating fluid level by comparing the liquid level gauge with the circulating fluid level. can do. As a result, it is possible to prevent the circulating fluid from overflowing at the time of supplying the circulating fluid, and to supply an appropriate amount of the circulating fluid. In addition, since the liquid level position gauge is provided integrally on the inner peripheral surface of the container, the number of parts does not increase unlike when a separate water level detection device such as a float switch or a sensor is used.

  In the second invention, the protruding amount of the liquid surface position gauge that protrudes from the liquid surface changes according to the liquid surface position of the circulating fluid. Thereby, the operator can confirm the liquid level position of circulating fluid easily.

  In the third aspect of the invention, the area of the liquid surface position gauge that protrudes from the liquid surface changes according to the liquid surface position of the circulating fluid. Thereby, the liquid level position of the circulating fluid can be confirmed more easily.

  In the fourth invention, it is possible to easily realize a liquid level gauge that is visible from the liquid supply port.

  Moreover, in 5th invention, it can prevent that a liquid level position gauge inclines.

  In the sixth invention, the circulating fluid spilled around the liquid supply port can be prevented from spreading to the surroundings. As a result, it is possible to prevent electrical components and the like provided in the temperature control device from being immersed in the circulating liquid.

(First embodiment)
Hereinafter, an embodiment of a temperature control system including a temperature control water unit (temperature control device) according to a first embodiment of the present invention will be described based on the drawings.

  First, the temperature control system shown in FIG. 1 uses a multi-type heat pump system. An indoor unit 18 and the temperature control water unit 1 are connected in parallel to one air conditioning unit 17. ing. The air conditioner 17 and the indoor unit 18 constitute an air conditioner, and the air conditioner 17, the temperature adjustment unit 1, the floor temperature adjustment panel 2, etc. constitute a floor temperature adjustment device. In this embodiment, what is characteristic is a floor temperature control device as a temperature control device, but both will be described for convenience. FIG. 1 is a circuit diagram showing a water system and a refrigerant system of a temperature control system including a temperature control water unit (temperature control device) according to an embodiment of the present invention. 2 is an overall perspective view of the outdoor unit provided with the temperature adjustment water unit shown in FIG. 1, and FIG. 3 is a plan view of the outdoor unit shown in FIG.

  First, the water system of the floor temperature control apparatus of the circuit diagram in FIG. 1 will be described. In the figure, 1 is a temperature control unit, 2 is a floor temperature control panel arranged on the floor of the house, and both 1, 2 and the air conditioning unit 17 of the heat pump system constitute a floor temperature control device. . The temperature adjustment water unit 1 and the floor temperature adjustment panel 2 include a temperature adjustment water return pipe (hereinafter abbreviated as “outward pipe”) 3a and a temperature adjustment water return pipe (hereinafter abbreviated as “return pipe”) 3b. Are connected by a temperature control water pipe 3 comprising: Then, a water circulation path is formed between the temperature adjustment water unit 1 and the floor temperature adjustment panel 2 through the temperature adjustment water pipe 3, and the circulation liquid 8 is circulated and supplied. As shown in FIG. 2, the temperature adjustment water unit 1 is configured to be placed on the upper part of the air conditioning unit 17, and an integrated component of the temperature adjustment water unit 1 and the air conditioning unit 17 is an outdoor unit. It is set as machine 50.

  As shown in FIGS. 2 and 3, the temperature adjustment water unit 1 includes a machine room 1a and a header room 1b. The machine room 1a includes a water heat exchanger 16 and a simple sealed expansion tank. 7, a circulation pump 9, an electrical component 33, and the like are provided. The water heat exchanger 16 (see FIG. 1) is wound in an oval donut shape along the inner wall of the casing 51 constituting the machine room 1a, and includes an upper heat insulating member 52 and a lower heat insulating member (see FIG. 1) made of a foamed material. It is installed in the machine room 1a in a state of being covered with an assembly made up of (not shown).

  4 is a plan view of the upper heat insulating member, and FIG. 5 is a bottom view of the upper heat insulating member shown in FIG. The upper heat insulating member 52 has a function of fixing a harness arranged in the machine room 1a as well as a function of insulating the circulating fluid 8 and the water heat exchanger 16 flowing through the heat exchange path 13 described later from the outside. Yes. As shown in FIGS. 4 and 5, the upper heat insulating member 52 is formed in an oval donut shape, and a storage recess 52 a (see FIG. 5) that can store the wound water heat exchanger 16 is formed. Has been. The upper heat insulating member 52 is made of a foam material having excellent heat resistance and heat insulation. In this embodiment, the thermistor harnesses 135a, 135b, 136 connected to the thermistors 35a, 35b, 36 and the three fixing parts 52b, 52c for fixing the pump harness 109 connected to the circulation pump 9 are provided. 52d is formed. The fixing portions 52b, 52c, and 52d are arranged in the order of the fixing portion 52b, the fixing portion 52c, and the fixing portion 52d from the electrical component 33 side to which the harnesses 135a, 135b, 136, and 109 are connected.

  6A is a cross-sectional view of the fixing portion along the line JJ shown in FIG. 4, and FIG. 6B is a cross-sectional view of the fixing portion along the line KK shown in FIG. FIG. 6C is a cross-sectional view of the fixing portion along the line HH shown in FIG.

  The fixed portion 52b shown in FIG. 6A is connected to the thermistor harness 135a connected to the return temperature detection thermistor 35a, the thermistor harness 135b connected to the forward temperature detection thermistor 35b, and the hydrothermal exchange temperature detection thermistor 36. The thermistor harness 136 and the pump harness 109 connected to the circulation pump 9 are provided. The fixed portion 52b has standing portions 521b and 522b that are vertically erected from the upper surface of the upper heat insulating member 52. The standing portions 521b and 522b are arranged to face each other, and a groove portion 523b is provided between the standing portions 521b and 521b. The groove 523b is formed along the longitudinal direction (L direction) of the upper heat insulating member 52, and is regulated so that the harnesses 135a, 135b, 136, and 109 fitted into the groove 523b are disposed along the longitudinal direction. is doing. The standing portion 521b is configured to bend a predetermined amount, and the harnesses 135a, 135b, 136, and 109 held between the standing portions 521b and 522b in the groove portion 523b are fixed by the bending force of the standing portion 521b. is doing. Further, since the standing portion 521b is bent by a predetermined amount, when the harnesses 135a, 135b, 136, and 109 are fitted into the groove portion 523b, the standing portion 521b is bent outward and the harnesses 135a, 135b, 136, and 109 are bent. Can be easily fitted. Furthermore, tapered portions 524b and 525b are provided at the upper ends of the standing portions 521b and 522b, respectively, to make it easier to fit the harnesses 135a, 135b, 136, and 109. The groove 523b is open at the top, and the harnesses 135a, 135b, 136, and 109 are inserted into the groove 523b by inserting the harnesses 135a, 135b, 136, and 109 from the upper opening.

  The fixing portion 52c shown in FIG. 6B is also provided to fix the thermistor harnesses 135a, 135b, 136 and the pump harness 109, similarly to the fixing portion 52b. The fixed portion 52c has standing portions 521c and 522c that are vertically erected from the upper surface of the upper heat insulating member 52. The standing portions 521c and 522c are arranged to face each other, and a groove portion 523c is provided between the standing portions 521c and 521c. The groove portion 523c is formed along a direction (S direction) orthogonal to the longitudinal direction of the upper heat insulating member 52, and the longitudinal direction (L) along the groove portion 523b (see FIG. 6A) of the fixing portion 52b. The harnesses 135a, 135b, 136, and 109 arranged along (direction) are guided in a direction (S direction) orthogonal to the longitudinal direction. The standing portion 521c is also configured to bend by a predetermined amount, and the harnesses 135a, 135b, 136, and 109 held between the standing portions 521c and 522c in the groove portion 523c are fixed by the bending force of the standing portion 521c. is doing. Further, when the standing portions 521c are bent by a predetermined amount, when the harnesses 135a, 135b, 136, and 109 are fitted into the groove portions 523c, the standing portions 521c bend outward and the harnesses 135a, 135b, 136, and 109 are bent. Can be easily fitted. Further, tapered portions 524c and 525c are provided at the upper ends of the standing portions 521c and 522c, respectively, so that the harnesses 135a, 135b, 136, and 109 can be more easily fitted. The groove 523c is open at the top, and the harnesses 135a, 135b, 136, and 109 are inserted into the groove 523c by inserting the harnesses 135a, 135b, 136, and 109 from the upper openings.

  The fixing portion 52 d shown in FIG. 6C is provided to fix the thermistor harness 136 connected to the hydrothermal exchange temperature detection thermistor 36 and the pump harness 109 connected to the circulation pump 9. The fixing portion 52d is provided on the side surface of the bridging portion 52f (see FIGS. 4 and 5) bridged to the central hollow portion 52e (see FIGS. 4 and 5) of the upper heat insulating member 52. And the fixing | fixed part 52d has the standing part 521d integrally formed in the outer side of the side wall 521f of the bridge | crosslinking part 52f. The standing portion 521d and the side wall 521f are arranged to face each other, and a groove portion 522d is provided between the standing portion 521d and the side wall 521f. The groove portion 522d is formed along the same direction (S direction) as the groove portion 522d of the upper fixing portion 52c, and the harnesses 136, 109 arranged along the groove portion 522d of the fixing portion 52c are further extended in the longitudinal direction. It leads to the direction (S direction) orthogonal to. Similarly to the standing portions 521b and 521c, the standing portion 521d is configured to bend by a predetermined amount, and the harnesses 136 and 109 sandwiched between the standing portion 521d and the side wall 521f in the groove portion 522d are connected to the standing portion 521d. It is fixed by the bending force of the part 521d. Further, since the standing portion 521d is bent by a predetermined amount, when the harnesses 136 and 109 are fitted into the groove portion 522d, the standing portion 521d is bent outward and the fitting of the harnesses 136 and 109 is facilitated. Furthermore, tapered portions 523d and 522f are provided at the upper ends of the standing portion 521d and the side wall 521f, respectively, to make it easier to fit the harnesses 136 and 109. The groove portion 522d of the fixing portion 52d is different from the groove portions 523b and 523c of the fixing portion 52b and the fixing portion 52c described above, and the lower portion is open. By inserting the harnesses 136 and 109 from the lower opening, The harnesses 136 and 109 are fitted in the groove 522d. Therefore, the harnesses 135a, 135b, 136, and 109 are fitted from above in the groove portions 523b and 523c of the fixing portions 52b and 52b, and the harnesses 136 and 109 are fitted from below in the groove portion 522d of the fixing portion 52d. Therefore, it is possible to prevent the harness from being released.

  Similarly to the upper heat insulating member 52, the lower heat insulating member (not shown) is also formed in an oval donut shape, and is formed with a storage recess that can store the wound water heat exchanger 16.

  FIG. 7 is a plan view of the expansion tank, and FIG. 8 is an internal perspective view of the expansion tank shown in FIG. The expansion tank 7 is provided to absorb the volume of the circulating fluid 8 that is heat-exchanged in the water heat exchanger 16 that expands due to a temperature difference. As shown in FIGS. 7 and 8, the expansion tank 7 is connected to a heat exchange path 13 and a forward pipe 10, and the circulating fluid 8 heat-exchanged in the water heat exchanger 16 passes through the heat exchange path 13. While passing through and flowing into the expansion tank 7, the circulating fluid 8 stored in the expansion tank 7 flows out to the going pipe 10. The expansion tank 7 includes a container 7a in which the circulating fluid 8 is stored, and a cap 7b (see FIGS. 2 and 3) attached to a liquid supply port 7c provided on the upper surface of the container 7a. The liquid supply port 7c is used when supplying the circulating fluid 8 into the container 7a at the time of construction or when replenishing when the circulating fluid 8 is reduced due to evaporation or the like.

  The container 7a is formed of a heat-resistant resin for storing the heated circulating fluid 8, and the upper casing 71a and the lower casing 72a are integrated by a method such as heat welding. In the present embodiment, the bottom surface of the container 7a (lower casing 72a) is provided with a protruding liquid level position gauge 7d that allows the level of the circulating fluid 8 in the container 7a to be confirmed. The liquid level position gauge 7d is provided on a bottom surface of the lower casing 72a and corresponding to the liquid supply port 7c formed in the upper casing 71a. The liquid level position gauge 7d is provided from the liquid supply port 7c. Visible. Further, the liquid level position gauge 7d protrudes vertically upward with respect to the bottom surface of the lower casing 72a, and is formed so that the sectional area gradually decreases from the bottom surface upward (see FIG. 8). Specifically, the liquid level position gauge 7d is provided with a shaft portion 71d protruding from the bottom surface of the lower casing 72a and a tip of the shaft portion 71 and has an outer diameter smaller than the outer diameter of the shaft portion 71d. 72d. The liquid level position gauge 7d is integrally provided on the bottom surface when the lower casing 72a is molded.

  The liquid surface position gauge 7d is provided with a rib portion 7g that supports the liquid surface position gauge 7d. The rib portion 7g is provided integrally with the lower casing 72a, and connects the liquid level position gauge 7d and the bottom and side surfaces of the lower casing 72a.

  Further, on the upper surface of the upper casing 71a, a rib portion 7e is erected so as to surround three directions around the liquid supply port 7c except for the open portion 7f. The opening portion 7f is opened in a direction away from the electrical component 33, and the circulating fluid 8 that has been removed from the liquid supply port 7c is guided to the outside through the opening portion.

  FIG. 9 is an enlarged view of a portion Z shown in FIG. FIG. 10 is a plan view of the circulation pump fixed to the pump support sheet metal, and FIG. 11 is a side view of the circulation pump fixed to the pump support sheet metal shown in FIG. The circulation pump 9 circulates the circulating fluid 8 stored in the expansion tank 7 as described above, the outgoing pipe 10, the outgoing header 4, the outgoing pipe 3a, the temperature adjustment water circulation pipe 11 formed on the floor temperature adjustment panel 2, the return pipe 3b, It functions as a drive source for circulating the return header 6, the return pipe 12, the heat exchange path 13, and the expansion tank 7 in this order. As shown in FIGS. 9 to 11, the circulation pump 9 includes an inflow port 9 a to which the forward pipe 10 connected to the expansion tank 7 is connected and an outflow to which the forward pipe 10 connected to the forward header 4 is connected. Port 9b. The inflow port 9a is provided so that the connection direction of the forward pipe 10 is horizontal, and the outflow port 9b is provided so that the connection direction of the forward pipe 10 is vertical.

  FIG. 12 is an exploded view of the support structure for the circulation pump, and FIG. 13 is an assembly view of the support structure for the circulation pump. 14 is a plan view of the casing of the outdoor unit shown in FIG. Here, the support structure of the circulation pump 9 will be described. As shown in FIGS. 12 and 13, the support structure of the circulation pump 9 includes the above-described circulation pump 9, pump support metal plate 53, and three anti-vibration rubber installation bases 51 a, 51 b, 51 c provided in the casing 51. Three anti-vibration rubbers 54a, 54b, 54c and one screw 55 are provided. The circulation pump 9 is fixed on the pump support sheet metal 53. The pump support sheet metal 53 is provided with three through portions 53a, 53b, and 53c (see FIG. 10) into which the three anti-vibration rubbers 54a, 54b, and 54c can be respectively fitted. Further, the anti-vibration rubber mounting bases 51a, 51b, 51c of the casing 51 are formed in respective portions corresponding to the three through portions 53a, 53b, 53c. Then, as shown in FIGS. 9 and 13, vibration-proof rubbers 54a, 54b, and 54c are fitted into the three through portions 53a, 53b, and 53c, respectively. Here, in this embodiment, as shown in FIG. 12, the anti-vibration rubber installation bases 51a and 51b are provided with pins 151a and 151b protruding vertically upward with respect to the upper surfaces of the anti-vibration rubber installation bases 51a and 51b, respectively. In contrast to this, the anti-vibration rubber mounting base 51c is not formed with the pin, but has a screw hole 151c. The pins 151a and 151b formed on the anti-vibration rubber mounting bases 51a and 51b are inserted into the through holes 154a and 154b formed on the anti-vibration rubbers 54a and 54b, respectively, so Vibration rubbers 54a and 54b are mounted (see FIGS. 9 and 13). As described above, the anti-vibration rubbers 54a and 54b are mounted on the pins 151a and 151b protruding vertically upward, whereby the horizontal of the circulating pump 9 fixed to the pump support metal plate 53 into which the anti-vibration rubbers 54a and 54b are fitted. Directional movement is restricted. On the other hand, the screw 55 is tightened in the screw hole 151c formed in the anti-vibration rubber installation base 51c. Specifically, in a state where the vibration isolating rubber 54c to be fitted into the penetrating portion 53c of the pump support metal plate 53 is placed on the vibration isolating rubber mounting base 51c, the screw 55 is inserted into the through hole 154c formed in the vibration isolating rubber 54c. Then, the screw holes 151c formed in the anti-vibration rubber mounting base 51c are tightened. In this way, fixing the circulation pump 9 by using the screw 55 at one place ensures the fixation of the circulation pump 9.

  On the other hand, the header chamber 1b is provided with a forward header 4, a return header 6, and the like. More specifically, a forward pipe 10 is connected to the bottom of the expansion tank 7 in the machine chamber 1a, and the tip thereof is connected to the forward header 4 of the header chamber 1b via a circulation pump 9. The forward header 4 includes a header main body 4a, a main pipe connecting portion 4b formed at one end in the longitudinal direction of the header main body 4a, and a plurality ( In this embodiment, it is composed of four) branch pipe connecting portions 4c, and the outgoing pipe 10 is connected to the main pipe connecting portion 4b, and the outgoing pipe 3a leading to the floor temperature control panel 2 is connected to each branch pipe connecting portion 4c. Are connected at one end. On the other hand, the other end of the outgoing pipe 3 a is connected to a connection portion 11 a at one end of a meandering temperature control water circulation pipe 11 formed on the floor temperature control panel 2. Therefore, the circulating fluid 8 in the expansion tank 7 is supplied to the forward pipe 10 by the operation of the circulation pump 9 and further divided into a plurality of forward pipes 3 a by the forward header 4, and to each floor temperature control panel 2. Supplied. In the header body 4a, a plurality of (four in this embodiment) thermal valves 15 are provided corresponding to each branch pipe connecting portion 4c, and flow into each branch pipe connecting portion 4c. The flow path of the circulating fluid 8 is opened / closed. In FIG. 1, the thermal valve 15 is shown outside the forward header 4 in order to simplify the drawing.

  On the other hand, a return pipe 3b is connected to a connecting portion 11a at the other end of the temperature-controlled water circulation pipe 11 formed on the floor temperature control panel 2, and a return header 6 is connected to the tip thereof. Similar to the forward header 4, the return header 6 is arranged in parallel in the longitudinal direction on the header body 6a, the main pipe connecting portion 6b formed at one end in the longitudinal direction of the header body 6a, and the outer peripheral surface of the header body. A plurality of (four in the present embodiment) branch pipe connection portions 6c. A return pipe 3b is connected to each branch pipe connection section 6c, and a return pipe 12 is connected to the main pipe connection section 6b. Is done. Further, the return pipe 12 and the expansion tank 7 are connected by a heat exchange path 13, which is connected to a water heat exchanger 16 that functions as a condenser or an evaporator of a refrigerant circuit described below. The heat exchange is provided. Thereby, in the water heat exchanger 16, the circulating fluid 8 returned from the return pipe 12 is heated or cooled. The tip of the heat exchange path 13 is connected to the bottom of the expansion tank 7. As a result, the circulating fluid 8 that has circulated through the temperature-controlled water circulation pipe 11 of the floor temperature control panel 2 flows into the return header 6 through the return pipe 3b, and the circulating fluid 8 that circulates through each return pipe 3b by the return header 6. Are combined and supplied to the return pipe 12, further heated by the heat exchange path 13, and then supplied to the expansion tank 7. A return temperature detection thermistor 35 a is provided in the return pipe 12, a forward temperature detection thermistor 35 b is provided in the heat exchange path 13 immediately before the expansion tank 7, and a hydrothermal exchange temperature is provided in the water heat exchanger 16. A detection thermistor 36 is attached.

  Next, the refrigerant system will be described with reference to FIG. In the following description, the heating operation is described as an example. In the present embodiment, a water heat exchanger 16 is used for heating the circulating liquid 8, and the refrigerant is circulated between the water heat exchanger 16 and the outdoor heat exchanger 19 of the air conditioning unit 17 of the multi-type heat pump system. A circuit is configured to heat the circulating fluid 8 flowing through the heat exchange path 13. In addition, as shown in FIG. 1, one indoor unit 18 connected to the air conditioning unit 17 of this heat pump system is provided, and the air conditioning unit 17 and the indoor unit 18 constitute an air conditioner. . In this air conditioner, the refrigerant is circulated by connecting the compressor 21, the indoor heat exchanger 20 provided with the indoor fan 20a, the decompression mechanism 22, and the outdoor heat exchanger 19 provided with the outdoor fan 19a in the order in which the refrigerant circulates. The circuit is configured. More specifically, the discharge pipe 21a and the suction pipe 21b of the compressor 21 are connected to the primary port of the four-way switching valve 23, and the accumulator 31 is interposed in the suction pipe 21b, while the discharge pipe A discharge pipe temperature detection thermistor 38 is attached to 21a. Between the pair of secondary ports of the four-way switching valve 23, the first gas pipe 24a, the indoor heat exchanger 20, the first liquid pipe 24b, the pressure reducing mechanism 22, the second liquid pipe 24c, and the outdoor heat exchange are provided. The vessel 19 and the second gas pipe 24d are connected in an annular shape in order. At this time, the indoor heat exchanger 20 and the outdoor heat exchanger 19 are respectively provided with an indoor heat exchange temperature detection thermistor 43 and an outdoor heat exchange temperature detection thermistor 41, and further, the indoor unit 18 and the air conditioning unit. 17, an indoor temperature detection thermistor 44 and an outside air temperature detection thermistor 42 are respectively attached.

  In addition, a header 26 is interposed in the first liquid pipe 24 b, and a portion between the header 26 and the indoor heat exchanger 20 serves as a liquid pipe 25 a of the communication pipe 25. Similarly, the first gas pipe 24 a is also provided with a header 27, and a portion between the header 27 and the indoor heat exchanger 20 is a gas pipe 25 b of the communication pipe 25. Then, a liquid pipe 28 a that is another communication pipe 28 connected to the header 26 is connected to one end of the water heat exchanger 16 of the temperature control water unit 1, and is connected to the header 27. A gas pipe 28 b that is a communication pipe 28 is connected to the other end of the water heat exchanger 16. As a result, the outdoor heat exchanger 19, the pressure reducing mechanism 22, and the water heat exchanger 16 of the temperature adjustment water unit 1 are connected to the four-way switching valve 23 in an annular shape. The liquid pipes 25a and 28a of the connecting pipes 25 and 28 are connected to the header 26 via electric expansion valves 29 and 30, respectively. By controlling the opening and closing of the electric expansion valves 29 and 30 as appropriate, The amount of refrigerant supplied to both the machine 18 and the temperature control unit 1 can be controlled. Here, liquid pipe temperature detection thermistors 39 and 37 are attached to the liquid pipe 25a on the indoor unit 18 side and the temperature control unit 1 side of the liquid pipe 28a, respectively, and the air in the gas pipes 25b and 28b is provided. Gas pipe temperature detection thermistors 40a and 40b are respectively attached to the harmony unit 17 side.

  In addition, the electric component 32 provided in the air conditioning unit 17 is supplied with power of, for example, 200 V and 20 A from the power source, and electrical control in the air conditioning unit 17 is performed. Further, the floor temperature control device is provided with a wireless remote controller 45 for starting and stopping indoor air conditioning operation and a wired remote controller 46 for performing similar operations for floor air conditioning. It has been. The remote controllers 45 and 46 also set the room temperature and floor temperature desired by the user. Further, the electrical component 32 of the air conditioning unit 17 and the electrical component 34 provided in the indoor unit 18, and the electrical component 32 of the air conditioning unit 17 and the electrical component 33 provided in the temperature adjustment water unit 1, respectively, Connected with power line. For this reason, when the user performs setting for linking the air conditioner and the temperature control unit 1, for example, in the operation start operation in the wireless remote controller 45, the operation using both the air conditioner and the temperature control unit 1 is performed. It is also possible to start.

  Next, each operation | movement operation | movement of the said floor temperature control apparatus and an air conditioner is demonstrated. In this system, as described above, cooling operation or heating operation can be performed based on an instruction from a remote controller or the like. Therefore, when only the indoor cooling operation is performed, the four-way switching valve 23 is switched in the direction opposite to the solid line direction shown in FIG. 1 with the electric expansion valve 29 on the temperature control water unit 1 side closed. The compressor 21 is driven. Then, the refrigerant flows in order from the compressor 21 to the outdoor heat exchanger 19, the decompression mechanism 22, and the indoor heat exchanger 20, and the outdoor heat exchanger 19 functions as a condenser and the indoor heat exchanger 20 functions as an evaporator. Thus, the cooling operation can be performed.

  On the other hand, when only the indoor heating operation is performed, the four-way switching valve 23 is switched in the direction of the solid line shown in FIG. 1 in a state where the electric expansion valve 29 on the temperature control water unit 1 side is maintained at a small opening, and compression is performed. The machine 21 is driven. Then, the refrigerant flows in order from the compressor 21 to the indoor heat exchanger 20, the decompression mechanism 22, and the outdoor heat exchanger 19, and the outdoor heat exchanger 19 functions as an evaporator and the indoor heat exchanger 20 functions as a condenser. Thus, the heating operation can be performed.

  When only the floor heating operation is performed, the compressor 21 is maintained with the electric expansion valve 30 on the indoor unit 18 side maintained at a small opening and the electric expansion valve 29 on the temperature adjustment water unit 1 side opened. And the water heat exchanger 16 functions as a condenser and the outdoor heat exchanger 19 functions as an evaporator. In this state, the circulation pump in the temperature control water unit 1 is driven. Then, the circulating fluid 8 in the expansion tank 7 flows out into the first pipe 10, is returned to the second pipe 12 through the temperature adjustment water pipe 3 and the temperature adjustment water circulation pipe 11, and then flows through the heat exchange path 13. To do. At this time, the circulating fluid 8 flowing through the heat exchange path 13 is heated by the water heat exchanger 16 functioning as a condenser, and then supplied into the expansion tank 7. And by performing such operation continuously, floor heating operation can be performed. In this embodiment, floor heating is mainly described. However, if the outdoor heat exchanger 19 functions as a condenser and the water heat exchanger 16 functions as an evaporator, the circulating liquid 8 is Since it is cooled, the floor cooling operation can also be performed. Furthermore, by opening both of the electric expansion valves 29 and 30 on both sides of the indoor unit 18 and the temperature control unit 1, it is possible to simultaneously heat and cool the room and the floor.

[Characteristics of the temperature control unit of this embodiment]
The temperature control unit 1 of the present embodiment has the following characteristics.

  In the temperature adjustment water unit 1 of the present embodiment, the liquid level position gauge 7d is provided at a location visible from the liquid supply port 7c, so that the operator can visually recognize the liquid level position gauge 7d through the liquid supply port 7c. can do. Since the protruding liquid level position gauge 7d is a target for comparison with the liquid level of the circulating liquid 8, the operator compares the liquid level position gauge 7d with the liquid level of the circulating liquid 8 and compares the level of the circulating liquid 8. The liquid level position can be confirmed. As a result, it is possible to prevent the circulating fluid 8 from overflowing when supplying the circulating fluid 8 and to supply an appropriate amount of the circulating fluid 8. In addition, since the liquid level gauge 7d is integrally provided on the bottom surface of the container 7a, the number of parts does not increase unlike when a separate water level detection device such as a float switch or a sensor is used.

  Moreover, in this temperature control unit 1, since the liquid level position gauge 7d protrudes upward from the bottom face of the container 7a, the liquid level position gauge 7d protrudes from the liquid level according to the liquid level position of the circulating fluid 8. The amount of protrusion changes. Thereby, the operator can confirm the liquid level position of the circulating fluid 8 easily.

  Moreover, in this temperature control unit 1, since the liquid level position gauge 7d is formed so that a cross-sectional area becomes small gradually from the bottom face of the container 7a upward, it corresponds to the liquid level position of the circulating liquid 8. The area of the liquid surface position gauge 7d protruding from the liquid surface changes. Thereby, the liquid level position of the circulating fluid 8 can be confirmed more easily.

  Moreover, in this temperature control unit 1, since the liquid supply port 7c is provided in the upper surface of the container 7a, and the liquid level position gauge 7d is provided in the part corresponding to the liquid supply port 7c of the bottom face of the container 7a. The liquid level gauge 7d visible from the liquid supply port 7c can be easily realized.

  Moreover, in this temperature control unit 1, since the rib part 7g which supports the liquid level position gauge 7d is provided, the protrusion-like liquid level position gauge 7d is caused by strain during molding or strain due to temperature change. It is possible to prevent the liquid surface position gauge 7d from tilting.

  Moreover, in this temperature control unit 1, since the rib part 7e is standingly arranged on the upper surface of the container 7a so that the liquid supply port 7c may be enclosed, the circulating fluid 8 which spilled around the liquid supply port 7c is surrounding. Can be prevented from spreading. As a result, it is possible to prevent electrical components and the like provided in the temperature control device from being immersed in the circulating fluid 8.

(Second Embodiment)
Next, the floor temperature control apparatus according to the second embodiment of the present invention will be described.
In the said 1st Embodiment, the temperature control water unit which comprises a floor temperature control apparatus, and the indoor unit which comprises an air conditioner were demonstrated with respect to the air conditioning unit. In the second embodiment, a configuration in which only the temperature adjustment water unit 51A is connected to the air conditioning unit 51B will be described. In addition, the same code | symbol is attached | subjected to the same member as 1st Embodiment, and detailed description is abbreviate | omitted.

  FIG. 15 is a circuit diagram showing a water system and a refrigerant system of a floor temperature control device according to a second embodiment of the present invention. First, the water system of the floor temperature control apparatus of the circuit diagram in FIG. 15 will be described. The floor temperature control apparatus includes an outdoor unit 51 installed outdoors, four floor temperature control panels 2 arranged on the floor of a house, and a remote control 46 installed indoors. . The outdoor unit 51 includes a temperature adjustment water unit 51A and an air conditioning unit 51B of a heat pump system. The temperature adjustment water unit 51A and the floor temperature adjustment panel 2 are connected by a temperature adjustment water pipe 3 including a temperature adjustment water outlet pipe 3a and a temperature adjustment water return pipe 3b. A water circulation path is formed between the temperature adjustment water unit 51 </ b> A and the floor temperature adjustment panel 2 through the temperature adjustment water pipe 3, and the temperature adjustment water 8 is circulated and supplied.

  As in the first embodiment, the temperature control unit 51A includes a water heat exchanger 16, a simple sealed expansion tank 7, a circulation pump 9, a forward header 4, a thermal valve 15, a return header 6, and electrical components 33. Etc. are provided. In addition, the water drain plug 111 is provided in the pipe line between the return header 6 and the water heat exchanger 16, and the temperature-controlled water flowing through the water circulation path can be discharged to the outside. The second pipe 12 has a return temperature detection thermistor 35 a, the hydrothermal exchanger 16 has a hydrothermal exchange temperature detection thermistor 36, and a pipe line between the hydrothermal exchanger 16 and the expansion tank 7. The forward temperature detection thermistor 35b is attached.

  In addition, since the detailed structure of the expansion tank 7 is the same as that of above-mentioned 1st Embodiment, the description is abbreviate | omitted.

  Next, the refrigerant system will be described. In this floor temperature control apparatus, the water heat exchanger 16 is used for heating the temperature control water 8 as in the floor temperature control apparatus according to the first embodiment. And the refrigerant | coolant circulation circuit is comprised between this water heat exchanger 16 and the outdoor heat exchanger 19 of the air conditioning unit 51B of a heat pump system, and the temperature control water 8 which flows through the heat exchange path 13 is heated. ing.

  In the floor temperature control apparatus, the refrigerant is connected to the outdoor heat exchanger 19 provided with the compressor 21, the water heat exchanger 16 of the temperature control water unit 51A, the pressure reduction mechanism 22, and the outdoor fan 19a in the order in which the refrigerant can be circulated. A circulation circuit is configured. More specifically, the discharge pipe 21 a and the suction pipe 21 b of the compressor 21 are connected to the primary port of the four-way switching valve 23. An accumulator 31 is interposed in the suction pipe 21b. On the other hand, a discharge pipe temperature detection thermistor 38 and a muffler 113 are attached to the discharge pipe 21a. Further, between the pair of secondary ports of the four-way switching valve 23, a first gas pipe 24a, a communication pipe 28b, a water heat exchanger 16, a first liquid pipe 24b, a pressure reducing mechanism 22, a second liquid pipe 24c, The outdoor heat exchanger 19 and the second gas pipe 24d are sequentially connected in an annular shape. A muffler 114 and a gas shut-off valve 115 are sequentially provided in the first gas pipe 24a from the four-way switching valve 23 side. The first liquid pipe 24b is provided with a liquid closing valve 116, a filter-equipped muffler 117, and a strainer 118 in this order from the communication pipe 28a side. In addition, a strainer 119 and a branching muffler 120 with a filter are interposed in the second liquid pipe 24c from the pressure reducing mechanism 22 side. The second liquid pipe 24 c is branched by a branching muffler 120 with a filter. The outdoor heat exchanger 19 has two pipe lines arranged in parallel, and is connected to the branched second liquid pipe 24c. And the two pipe lines in parallel in the outdoor heat exchanger 19 are comprised so that it may join by the 2nd gas pipe 24d. The outdoor heat exchanger 19 is provided with an outdoor heat exchange temperature detection thermistor 41, and an air temperature detection thermistor 42 is attached to the air conditioning unit 51B.

  As described above, the outdoor heat exchanger 19, the pressure reducing mechanism 22, and the water heat exchanger 16 of the temperature adjustment water unit 51A are connected to the four-way switching valve 23 in an annular shape. The floor temperature control apparatus is provided with a wired remote controller 46 for performing operations such as starting and stopping of the air conditioning operation. In addition, in 1st Embodiment, although the electrical equipment 32 of the air conditioning unit 51B and the electrical equipment 33 of the temperature control water unit 51A are arrange | positioned separately, in the floor temperature control apparatus of 2nd Embodiment, The electrical component 33 is configured to control the air conditioning unit 51B and the temperature adjustment water unit 51A. The electrical component 33 may be configured to be disposed in the air conditioning unit 51B.

  Next, each operation | movement operation | movement of the said floor temperature control apparatus is demonstrated. This floor temperature control device can perform a cooling operation or a heating operation based on an instruction from the remote controller 46 or the like.

  When performing the floor heating operation, the gas closing valve 115 and the liquid closing valve 116 are opened, the compressor 21 is driven, the water heat exchanger 16 functions as a condenser, and the outdoor heat exchanger 19. To function as an evaporator. In this state, the circulation pump 9 in the temperature control unit 51A is driven. Then, the temperature control water 8 in the expansion tank 7 flows out into the first pipe 10 and is returned to the second pipe 12 through the temperature control water pipe 3 and the temperature control water circulation pipe 11, and then passes through the heat exchange path 13. Circulate. At this time, the temperature-controlled water 8 flowing through the heat exchange path 13 is heated by the water heat exchanger 16 functioning as a condenser, and then supplied into the expansion tank 7. By continuously performing such operation, floor heating operation can be performed. In the present embodiment, floor heating is mainly described. However, if the outdoor heat exchanger 19 functions as a condenser and the water heat exchanger 16 functions as an evaporator, temperature control water is used. Since 8 is cooled, the floor cooling operation can also be performed.

  As mentioned above, although embodiment of this invention was described based on drawing, it should be thought that a specific structure is not limited to these embodiment. The scope of the present invention is shown not only by the above description of the embodiments but also by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

  For example, in the above-described embodiment, an example in which the liquid level position gauge 7d is formed upward from the bottom surface of the container 7a (lower casing 72a) has been described. However, the present invention is not limited to this, and the modification shown in FIG. As in the expansion tank 107 according to the example, a projecting liquid level position gauge 107d that protrudes from the side surface of the container 171a may be integrally provided at a location that is visible from the liquid supply port 107c.

  Moreover, although the said embodiment demonstrated the example which provides the liquid level position gauge 7d and the rib part 7g which connects the bottom face and side surface of the lower casing 72a, this invention is not restricted to this, It showed in FIG.17 and FIG.18 Like the expansion tank 207 according to the modified example, a rib portion 207g that connects the liquid level position gauge 207d and the bottom surface of the lower casing 272a may be provided. Moreover, although the example which provides the one rib part 7g was shown in the said embodiment, in this invention, the number of a rib part is not limited, A plurality (in the modification shown in FIG.17 and FIG.18, four). You may provide a rib part.

  By utilizing the present invention, it is possible to obtain a temperature adjustment device (temperature adjustment water unit) capable of confirming the position of the circulating fluid without increasing the number of parts.

It is a circuit diagram which shows the water system and refrigerant | coolant system | strain of a temperature control system provided with the temperature control water unit (temperature control apparatus) which concerns on 1st Embodiment of this invention. It is a whole perspective view of the outdoor unit provided with the temperature control water unit shown in FIG. It is a top view of the outdoor unit shown in FIG. It is a top view of an upper heat insulation member. FIG. 5 is a bottom view of the upper heat insulating member shown in FIG. 4. (A) Cross-sectional view of the fixing portion along the line JJ shown in FIG. 4, (b) Cross-sectional view of the fixing portion along the line KK shown in FIG. 4, (c) FIG. It is sectional drawing of the fixing | fixed part along the HH line. It is a top view of an expansion tank. FIG. 8 is an internal perspective view of the expansion tank shown in FIG. 7. FIG. 4 is an enlarged view of a Z portion shown in FIG. 3. It is a top view of the circulation pump fixed to the pump support metal plate. It is a side view of the circulation pump fixed to the pump support metal plate shown in FIG. It is an exploded view of the support structure of a circulation pump. It is an assembly drawing of the support structure of the circulation pump. It is a top view of the casing of the outdoor unit shown in FIG. It is a circuit diagram which shows the water system and refrigerant | coolant system | strain of the floor temperature control apparatus which concern on 2nd Embodiment of this invention. It is an internal perspective view of the expansion tank concerning a modification. It is a top view of the expansion tank concerning a modification. It is an internal perspective view of the expansion tank concerning a modification.

Explanation of symbols

1 Temperature control unit (temperature control device)
2 Floor temperature control panel 3a Outflow piping for temperature control water (outward piping)
3b Temperature-controlled water return pipe (return pipe)
7, 107, 207 Expansion tank 7a, 107a Container 7c, 107c Liquid supply port 7d, 107d, 207d Liquid surface position gauge 7e Rib part 7g, 207g Rib part (support part)
8 Circulating fluid 9 Circulating pump 11 Temperature control water circulation pipe 16 Water heat exchanger

Claims (6)

Piping disposed on the floor, a heat exchanger for heating the circulating fluid circulating in the path, an expansion tank for absorbing the volume of the circulating fluid expanding in the path due to a temperature difference, and the path A temperature control device comprising a circulation pump for circulating the circulating fluid of
The expansion tank is
A container in which the circulating fluid is stored;
A liquid supply port provided in the container;
A protrusion-like liquid level position gauge that is integrally provided on the inner peripheral surface of the container at a location that is visible from the liquid supply port and that enables the liquid level position of the circulating liquid in the container to be confirmed. A temperature control device characterized by   The temperature control apparatus according to claim 1, wherein the liquid level position gauge protrudes upward from the bottom surface of the container.   The temperature control device according to claim 2, wherein the liquid level position gauge is formed so that a cross-sectional area gradually decreases upward from the bottom surface of the container.   The said liquid supply port is provided in the upper surface of the said container, and the said liquid level position gauge is provided in the part corresponding to the said liquid supply port of the bottom face of the said container, The 1-3 characterized by the above-mentioned. The temperature control apparatus of any one of these.   The temperature control apparatus according to claim 1, wherein the expansion tank further includes a support portion that supports the liquid level position gauge.   The liquid supply port is provided on an upper surface of the container, and a rib portion is provided on the upper surface of the container so as to surround the liquid supply port. The temperature control apparatus of any one of Claims.

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