JPH0350030Y2 - - Google Patents

Description

[Detailed description of the invention] <<Industrial application>> This invention is used in separate oil heaters or solar systems, etc., by installing it in the solution circulation piping that connects the outdoor unit and the indoor unit. The present invention relates to a make-up water tank mounting structure comprising a make-up water tank used for filling the circulation system and securing overflow liquid, and a tank connection joint for connecting the make-up water tank to the solution circulation piping.

<<Prior art>> Conventionally, in a separate type heater, as shown in FIG.
The heat exchanger 4 for heat dissipation is connected to the heat exchanger 4 for heat dissipation by a gas pipe 5 and a liquid pipe 6, and the solution in the heat exchanger 2 for heating is heated and vaporized by the combustor 7 of the outdoor unit 1, and the vaporized vapor is is sent through the gas pipe 5 to the heat exchanger 4 for heat radiation of the indoor unit 3, and the air generated by the fan 8 is heated to heat the room, and the solution in the heat exchanger 4 for heat radiation is condensed and liquefied. The liquid is circulated to the outdoor unit 1 through the liquid pipe 6. In this circulation system, a make-up water tank 9 for the solution is interposed in the liquid piping 6, and by installing the make-up water tank 9, it is possible to easily fill the circulating solution at the time of installation, and it is also possible to replenish the solution. This has the advantage of being easy to perform, ensuring a volume that does not overflow the overflow liquid, and allowing air to be removed by circulating the solution back into the make-up water tank 9.

As shown in FIG. 5, the makeup water tank 9 has a structure in which liquid pipes 6a and 6b are connected to a pair of pipe connection parts protruding from the lower end surface of the tank body 10 via tank connection joints 10A and 10B. These liquid piping 6
The make-up water tank 9 is connected to the outdoor unit 1 and the indoor unit 3 via a and 6b, and a solution intake port is provided on the upper end surface of the tank body 10, and the intake port is normally closed with a cap 11. are doing.

When the make-up water tank 9 has the above structure, when filling the solution, it is necessary for the construction worker to replace the solution put in the transportation solution tank 12 into the make-up water tank 9 on-site, as shown in Fig. 4. However, there was a problem in that it was time-consuming and the transportation solution tank 12 was wasted. Furthermore, since this relies on the work of a construction contractor, there is a risk that, for example, an appropriate substance such as water may be used as a substitute, or an appropriate amount may not be put into the make-up water tank 9.

The above-mentioned problem also occurs when a make-up water tank 16 having the same structure as above is interposed in the circulation pipe 15 connecting the tank 13 and the heat collector 14 in the solar system shown in FIG. arise.
In addition, in FIG. 6, 17 is a circulation pump and 18 is a heat exchanger.

《Purpose of the invention》 The present invention was made in view of the above-mentioned problems, and the make-up water tank has a cartridge-like structure, in which the solution is sealed and the water tank is connected to the piping in advance. This structure allows the solution to be removably fitted to the fitting that is attached to the tank, and when the fitting breaks the seal of the make-up water tank, the solution inside is injected into the piping, eliminating the need for a tank for transportation. This simplifies the filling operation of the solution.

《Structure of the device》 The present invention was made to achieve the above-mentioned purpose, and includes a water supply port protruding from one end of a make-up water tank filled with a solution, and a screw carved into the outer surface of the peripheral wall of the water supply port. At the same time, a thin film is attached to the opening surface of the water supply port to seal it, and a T-shaped tank connection joint is provided to connect the make-up water tank to the solution circulation piping, and both sides of the tank connection joint are connected to each other. A partition plate is provided that bisects the horizontal part connected to the solution circulation piping in the center and the vertical part connected to the make-up water tank in the center, and the tip of the partition plate is formed into a sharp protrusion, and By protruding a screw that fits into the screw of the water supply port on the inner circumferential surface of the vertical part and screwing the tank connection joint into the water supply port of the makeup water tank, the film can be connected to the protrusion of the partition plate. This invention provides a make-up water tank mounting structure characterized in that the make-up water tank is broken and the inside of the make-up water tank is made to pass through solution circulation pipes connected to both sides via tank connection joints.

<<Example>> Hereinafter, the present invention will be explained in detail with reference to an example shown in the drawings.

In FIG. 1, 20 is a make-up water tank, 21 is a tank connection joint, and the tank connection joint 21 is 3
When installed in the separate heater system shown in FIG. 4, it is connected to the make-up water tank 20 and the liquid pipes 6a and 6b, respectively.

The make-up water tank 20 is made of a resin molded product, and is transported to this system in the state shown in FIG. 2, and has a solution serving as a heat medium sealed therein. That is, a cylindrical water supply port 22 is provided protruding from the center of the top surface of the makeup water tank 20, and a thin film 24 is attached to the tip opening surface 23 of the water supply port 22.
The water supply port is sealed with a film 24 to prevent the solution sealed inside from spilling even if the makeup water tank 20 is turned upside down. A male thread 25 for connecting to the joint 21 is provided on the protruding outer peripheral surface of the water supply port 22.
is engraved. Further, the bottom of the make-up water tank 20 is provided with an atmosphere release hole that is closed with a temporary lid 26 that can be opened as needed. Note that if the make-up water tank 20 is of a closed type, the temporary lid 26 is not necessary.

Further, the volume of the make-up water tank 20 is set to be greater than or equal to the amount of solution required for this separate heater plus the amount of overflow liquid.

The tank connection joint 21 that connects the make-up water tank 20 to the liquid pipes 6a and 6b is T-shaped as shown in FIG. A vertical portion 28 is provided to protrude from the horizontal portion 27 in a perpendicular direction. The vertical portion 28 has a two-stage cylindrical shape, and a female thread 29 is formed on the inner peripheral surface of the upper portion 28a having a large diameter, and the male thread 25 of the makeup water tank 20 is connected to the female thread 29. It's like it's screwed in. In addition, the above male screw 25
The and female threads 29 are mutually formed into tapered threads, and simply by screwing the female thread 29 into the male thread 25, the contact pressure between the two gradually increases and the connection can be sealed.

Furthermore, inside the connecting part 28, there is a partition plate 30 inside the joint that divides the horizontal part into two at the center and extends from the center of the horizontal part 27 to the center of the vertical part to divide the inside of the vertical part 27 into two. The outgoing path 31 communicates with the indoor unit side passage 27a of the horizontal section 27 connected to one liquid pipe 6a by the partition plate 30, and the outdoor unit side of the horizontal section 27 connected to the other liquid pipe 6b. A return path 32 is provided which communicates with the path 27b. On the top end side of the partition plate 30, there is a third
As shown in FIG. The opener 33
is arranged to break through the film 24 attached to the tip opening 23 of the make-up water tank 20. Since the opener 33 is inserted into the water supply port 22 of the makeup water tank 20 in this manner, its thickness is made sufficiently thin so as not to obstruct the flow of the solution in the water supply port 22. Incidentally, an air release hole provided on the bottom surface of the makeup water tank 20 (located on the upper side in FIG. 1) is sealed with a stud 35 attached thereto.

With the structure described above, when installing this separate heater or when replenishing solution is required, the make-up water tank 20 filled with a specified amount of circulating solution can be transported, and the make-up water tank 20 can be filled with liquid. It is only necessary to install it inside the pipe 6. That is, first, the make-up water tank 20 is reversed, and the male thread 25 of the water supply port 22 is connected to the female thread of the vertical part 28 of the tank connection joint 21, which has both ends 27a and 27b of the horizontal part 27 connected to the liquid pipes 6a and 6b, respectively. Screw into screw 29. At this time, the film 24 that seals the opening surface of the water supply port 22 is attached to the tank connection joint 21 while being screwed in.
It is broken by an opener 33 consisting of a protrusion formed at the tip of the partition plate 30. In addition, since the opener 33 is screwed in while rotating, the water supply port 2
2 is opened over almost the entire surface, and the vertical part 28 of the joint and the water supply port 22 pass through the joint only with the thickness of the thin opener 33 being blocked.

In this way, simply by screw-fitting the make-up water tank 20 to the tank connection joint 21, the inside becomes connected, and the solution filled in the make-up water tank 20 enters and exits the circulation pipes 6a and 6b. It can be done.

The above makeup water tank 20 and tank connection joint 21
At this point, the solution flows as indicated by the arrows in FIG. At that time, the water supply port 2 of the makeup water tank 20
2, the opener 33 serves as a kind of rectifying plate, and once returns the solution flowing from the pipe 6a on the indoor unit side to the make-up water tank 20, and then sends it to the pipe 6b on the indoor unit side. , the air in the circulation pipe 6 is now vented.

In addition, when the circulation system of this separate type heater is made into an open system, for example, a part of the bottom surface of the above-mentioned make-up water tank 20 is molded into a thin resin in advance, and the studs 35 are inserted into the thin part. Then, a slight gap is created between the broken thin part and the stud 35, allowing air to enter and exit, and this plays the role of an atmosphere release hole, making the replenishment water tank open to the atmosphere. I can do it.

<<Effects of the invention>> As is clear from the above explanation, according to the invention, it is extremely easy to fill and replenish the circulation path with the solution by simply screwing the make-up water tank filled with the solution into the tank connection joint. can be done.
In addition, since the make-up water tank is filled with the required amount and required solution solution at the factory, sealed with a film and transported, and the make-up water tank is connected to the circulation piping in a sealed state, there is a possibility that dirt or other substances may get mixed into the solution. can also be prevented, and the reliability of the solution is extremely high. In addition, it is possible to eliminate the need for a transportation tank, which was previously required, and compared to the conventional process of pouring the solution from the transportation tank into a tank installed in the piping, the tank is screwed into the joint. It has various advantages, such as not getting your hands dirty and being able to do it with just one touch.

[Brief explanation of the drawing]

Fig. 1 is a front view with main parts cut away showing an embodiment of the make-up water tank mounting structure according to the present invention, Fig. 2 is a perspective view of the make-up water tank, Fig. 3 shows a tank connection joint, and A indicates Plan view, B is sectional view, C is A of B
4 is a block diagram of a separate heater, FIG. 5 is a front view showing a conventional makeup water tank mounting structure, and FIG. 6 is a block diagram of a solar system. 1...Outdoor unit, 2...Heating heat exchanger, 3...
Indoor unit, 4... heat exchanger for heat radiation, 5... gas piping, 6... liquid piping, 9... make-up water tank, 20...
...Replenishment water tank, 21...Tank connection joint, 2
2... Water supply port, 24... Film, 25... Male thread, 29... Female thread, 30... Partition plate, 33...
opener.

Claims (1)

[Scope of utility model registration request] A water supply port is provided protruding from one end of the make-up water tank filled with a solution, a screw is carved on the outer surface of the peripheral wall of the water supply port, and a thin film is attached to the opening surface of the water supply port to seal it. A T-shaped tank connection joint is provided to connect the make-up water tank to the solution circulation pipe, and each side of the tank connection joint bisects the horizontal part connected to the solution circulation pipe in the center, and connects the make-up water tank to the solution circulation pipe. A partition plate is provided that bisects the center of the vertical part connected to the , the tip of the partition plate is formed into a sharp protrusion, and a screw that fits into the screw of the water supply port is provided on the inner peripheral surface of the vertical part. By screwing the tank connection joint into the water supply port of the make-up water tank, the protrusion of the partition plate breaks the film and the inside of the make-up water tank is connected to both sides via the tank connection joint. A make-up water tank mounting structure characterized in that water is allowed to pass through each pipe for solution circulation.