JP3333261B2 - heat pipe - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to promote freezing, the engagement heat pipe consisting insertable metal sealed tube to be frozen body
In particular, the leading side of the metal sealed tube is sucked into the frozen object.
As the heat side, the terminal side is a heat radiation side that emits the absorbed heat
The present invention relates to a heat pipe configured as such .

[0002]

Conventionally, lined wick-like capillary material inside, made of a small amount of metal sealed tube refrigerant liquid put in a partial vacuum, hot top section (absorption by evaporation of the refrigerant fluid
A heat pipe configured so that the heat absorbed from the heat-side sealed portion) can be released from the low-temperature side end portion (radiation-side sealed portion) by condensation of steam is known. Due to its conductive properties, it is widely used in various fields. One of the ways to use it is, for example, the high temperature head of heat pipe in the cooling temperature room in the summer environment.
Insert the side to object to be cooled, whereas a cold terminal portion is positioned in the interior space, it is used when such freezing promote the object to be cooled by the heat absorption of from the object to be cooled the hot top portion.

In this case, when the heat removal temperature of the object to be cooled at the time of final cooling is lower than the freezing temperature of the object to be cooled, the heat pipe is frozen and fixed in the object to be cooled as it is. At this time, if the object to be cooled is thawed, it can be removed as well as the heat pipe, but this does not meet the purpose of freezing. Also, the object to be cooled is rolled over or overturned, the low-temperature end (radiation) side is heated by another heat source, and if this is temporarily used as the high-temperature part (heat absorbing part) , the high-temperature head at the time of promoting freezing acts as a heat pipe. As a result, heat is instantaneously transmitted and heated (radiated) , and the heat pipe can be easily extracted.

[0004] Furthermore, if the object to be frozen is difficult or impossible to roll over due to its weight or structure, the promotion of freezing by the heat pipe is stopped immediately before freezing, and the object is extracted. You can do things.

[0005]

However, any of the above techniques not only requires extra labor for overturning work and monitoring work for stopping the promotion of freezing, but also performs cooling / freezing to the final cooling temperature smoothly. There is a fundamental problem of not being able to obtain.

In view of the above technical problems, the present invention makes it possible to easily remove the pipe even when the object to be cooled is completely frozen by the heat pipe and the pipe is frozen and fixed in the object to be frozen. It is an object of the present invention to provide a heat pipe configured so as to be able to smoothly cool and freeze to a final cooling temperature.

[0007]

Means for Solving the Problems In order to achieve the above technical object, the invention comprises a metal sealed tube which can be inserted into a body to be frozen,
Insert the leading side of the metal sealed tube into the frozen object to absorb heat
As the heat absorbing side, the terminal side is the heat radiating side that releases the absorbed heat
In a heat pipe formed by construction as the heat absorption side
Either at least a part of the member constituting the sealed portion is made to function as an electrical resistor, or the electrical resistor is disposed in the heat absorbing side sealed portion or at a predetermined portion of the sealed portion, and the electrical resistor is provided. characterized in that the heatable configured endothermic side by Rikin Shokufukan the passing <br/> electricity to.

[0008] As shown as a specific means such configuration in FIG. 1, for example, a member constituting the heat-absorbing-side sealed tube portion
A heat pump that at least partially functions as an electrical resistor
For type, the is passed through the current-carrying conductor in a metal sealed tube via an insulating sealing body from the terminal portion of the radiation side sealed tube section, is connected to the tip to heat absorption side sealed tube portion, whereas absorbing heat side Rutotomoni to connect the wire to a predetermined site of the sealed tube portion <br/>, even if energization heater configured to be able to heat absorption side sealed tube part connecting the heating power conductor line and the other end and between the conductor and the other end well, thereby the sealed tube
It is possible to heat the heat absorbing side sealed tube portion itself as an electrical resistance, a necessary part of the metal sealed tube by Thus also connected to freely select the pole conductors of the heating power at any position of the metal sealed tube (The heat-absorbing side sealed tube) can be heated only.

In addition, an electric resistor is provided in the heat-absorbing side sealed tube.
In the heat pipe, an electric resistor is connected to the leading end of a current-carrying conductor inserted into the heat pipe through an insulating sealing member from a heat radiation side terminal portion, and a heat pipe action is performed by heat generation by the current flowing through the resistor. The heat may be generated by inverting the heat so that the heat absorbing side of the metal sealed tube can be heated and radiated . In this case, as the electric resistor, a high-resistance heating wire may be provided in the heat pipe, or the electric resistor may be inserted into the heat-absorbing-side sealed portion . Further, in this case, since the metal sealed tube itself is not used as the heating element, the heat conduction of the generated heat is quickly performed to the low temperature portion by the heat pipe function.

Further, the present invention provides a heat-radiation-side sealed tube and a heat-absorbing-side sealed tube.
Dense refrigerant a hollow tube capable sealed in metal sealed tube ends of each of the parts
Seal supported so Rutotomoni, that the current supply conductor and electrical resistor is to or hollow tube is connected to a respective hollow tube forms part of the current-carrying conductor and electrical resistor
Well, whereby said hollow tube is made can be utilized as a refrigerant liquid enclosed into the interior of the metal sealed tube. For example, the refrigerant liquid is supplied into the metal sealed tube from one of the hollow tubes, and the air in the tube is eliminated while discharging a part of the hollow tube from the other hollow tube.
Thereafter, the refrigerant liquid is easily sealed by press-sealing the ends of the two hollow tubes and further performing welding. In addition, by adjusting the pressure in the pipe in an environment at a temperature corresponding to the operating temperature, the pressure in the pipe after the refrigerant gas is sealed can be easily adjusted.

Further, in the metal pipe constituting the heat pipe, since the metal pipe is formed in a tapered shape in which the diameter is gradually reduced from the heat radiation side to the heat absorption side , the heat pipe body which is frozen and fixed is pulled out. Makes operation easier.

Further, the present invention relates to the heat absorbing side of the metal sealed tube.
In a sealed tube portion, by arranging the foreign metallic material that contacts supported by the metal sealed tube to have a thermocouple function may be configured to be capable of temperature detection of the heat-absorbing-side sealed tube portion. That is, in order to cause the heat pipe to also output thermocouple characteristics, the metal pipe of the heat pipe and, for example, the high-resistance heating wire inside the metal pipe or the high-resistance metal hollow pipe for enclosing the refrigerant gas described later are sealed. This is easily achieved by using a tube and a dissimilar metal. These are all connected to the current-carrying conductor in a short and small shape, so that the temperature of the head portion of the heat absorbing portion can be easily detected.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; However, unless otherwise specified, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention, but are merely illustrative examples. Not just. FIG.
1 is a schematic cross-sectional view of a heat pipe according to a first embodiment of the present invention, which is formed of a metal sealed tube that can be inserted into a frozen object 10;
The leading side (the lower part in the figure) of the genus sealed tube 2 is defined as a heat absorbing side sealed tube portion 8.
The terminal side (upper side in the figure) is configured as a heat radiation side sealed tube section 7
Heat pipe 1. Reference numeral 11 denotes a conducting wire made of a low-resistance metal material inserted in the metal sealed tube 2 along the central axis direction, and a short end of which is hermetically sealed by the leading end 6 of the heat absorbing side sealed tube portion 8. Is fitted and connected to the upper end of the hollow tube 13.
Have . Incidentally, the hollow tube 13 may be formed of highly conductive metal thin tube of the conductor and the same quality, but preferably it is preferable to have formed heat generating function of a high-resistance metal thin tube. And said hollow tube 13 is formed of dissimilar metallic material and metal sealed tube 2, by contacting a hollow tube 13 and the metal sealing pipe 2 ends to have a thermocouple function of the heat absorbing side top part 6 It is configured to be able to detect temperature.

The other end of the conducting wire 11 is a heat-radiating-side sealed portion.
7 supported by the insulating sealing body 3 enclosed in the terminal portion 3A.
In the closed state, and led out of the metal tube 2 and
, And further via a conductor 19 and a switch 18.
Electrically connected to a thermal power supply 16 or a temperature indicator 17
I have. The heating power supply 16 and the temperature indicator 17 are combined into one.
A predetermined portion of the heat-absorbing-side sealed tube portion 8 which is connected and
Is electrically connected to the hollow tube 13 having a heating function through
ing. Also, a large number of cooling
The fin 5 is attached to the ring to smoothly dissipate heat.

According to this embodiment, the heat pipe 1
The heat absorption side sealed tube portion 8 Insert to be frozen product 10, whereas the heat radiation
The cooling fins 5 of the side sealing section 7 are placed, for example, in a summer temperature environment. Thus, the heat absorption side sealed tube portion 8 is cooled, the heat absorption
The to- be-frozen object 10 into which the side sealing portion 8 is inserted falls below the freezing temperature, and finally the heat-absorbing side sealing portion 8 is frozen and fixed to the to-be-frozen object 10. In the process of freezing , hollow
The tube 13 is brought into contact with the end portion 8 of the heat-absorbing side of the metal tube 2
Since the heat-absorbing side head 6 having the thermocouple function functions as a thermocouple, the switching switch 18 is connected to the temperature indicator 17 .
By making an electrical connection with the above, it is possible to easily measure the progress of the temperature change of the heat-absorbing front part 6.

Next, the switching switch 18 is connected to the heat generating power supply 16 side.
To the conductor 19, the conducting wire 11,
Functioning hollow tube 13, heat-absorbing side sealed tube 8, conductor 20
In other words, the heat generating power supply 16 is composed of the heat-generating power supply 16 , the heat- absorbing-side head 6 formed of the conductive wire 11 , the hollow tube 13,
An energization circuit with the sealed tube portion 8 is formed, and energization of the hollow tube 13 is started.
The heat absorbing side sealed tube portion 8 and the hollow tube 1 of the metal sealed tube 2 by heat
The top end portion 6 on the heat absorption side including 3 is heated to become a heating element and endothermic.
The ice on the tube surface of the side tube 8 can be melted, and the metal tube 2 can be easily pulled out of the object 10 to be cooled.

[0017] To this as in the conventional industrial ice making device example freezing of the central portion is left for the heat transfer of ice is lower in due cooling from the ice cans around in the cooling Gurain bath, and ice this It takes a lot of time. By inserting the heat-absorbing-side sealing portion 8 of the heat pipe into the center of the ice can and leaving it in a room at a temperature of 0 ° C. or lower, the freezing of the center is quickly completed, but the freezing is completed at the same time. The heat pipe itself is frozen and fixed in the ice, but can be easily pulled out by performing the above-described energization heating operation using the heat pipe of this embodiment.

FIG. 2 shows a structure in which a high-resistance heating element 9, for example, a nichrome wire 9 is connected in series with the current-carrying conductor 11 at the head of the heat- absorbing-side sealed portion 8 of the heat pipe.
Is substantially the same as the embodiment shown in FIG.
Is transferred by the heat pipe function, that is, by evaporating and condensing the refrigerant, not by the heat generated by the metal sealed tube 2 itself. For this reason, heating can be performed several steps faster than in the above embodiment . Top portion 6 of the heat absorption side sealed tube portion 8 for connecting supporting the heat generating high resistance element 9 also and energized conductor 11
There used each hollow tube 13 and 14 to the terminal portion 3A of the radiation side sealed tube portion supported, and the hollow tubes 13 are heat-absorption
On the side of the sealed tube portion 8, it is fixed to the metal sealed tube 2 by direct welding or other means, and on the side of the radiated side sealed tube portion 7, it is fixed via the insulating sealing body 3. 3 (A) and 3 (B).
3 and 14 are provided with communication holes 13a and 14a communicating with the inside of the metal sealed tube 2 through the hollow tubes 13 and 14, respectively. And at the time of injection of the refrigerant gas, the hollow tube 13,
The tip of each of the tubes 14 is opened, and while introducing the refrigerant from one of the hollow tubes 13, the air is excluded from the other hollow tube 14 to inject the refrigerant, and the internal pressure inside the sealed tube 2 is reduced. After the pressure is adjusted to a pressure corresponding to the operating temperature of the heat pipe, the hollow tubes 13 and 14 are sealed after being pressed and sealed. Incidentally, FIG. (A) is shown a state in which sealed after injection of the refrigerant in (b). Figure 4 is a sealed tube toward the endothermic side from the radiator side to thin tapered, D _1> The operation of extracting the said heat pipes in the example was D ₂ to easily and reliably.

[0019]

As described above, according to the present invention, the promotion of freezing of the object to be cooled by the heat pipe is finally achieved by the cooling.
And frozen, in the case of frozen fixing the heat pipe and the cooled object is also easily the pipe causing it possible to withdrawn, thereby together with Ru can be smoothly cooled / frozen to a final cooling temperature, This eliminates the need for the work to be rolled over and the heating work using other heat sources and their equipment when extracting the heat pipe after freezing, and the burden of freezing work and freezing equipment costs is greatly reduced.

That is, in the present invention, for example, in the final freezing process of block ice making, the heat absorbing side of the heat pipe is temporarily heated as necessary to generate heat by means of accelerating freezing by the heat pipe in the cold room. By reversing the performance of the heat pipe under the environment, the frozen and fixed heat pipe can be easily extracted, and the workability thereof can be improved.

Further, since a thermocouple function is provided at the leading end of the heat- absorbing side sealed tube portion , it is possible to easily measure the freezing temperature in that portion, thereby enabling the use of a temperature sensor without using a temperature sensor. It is possible to provide a heat pipe capable of accurately detecting the temperature without having to remove the sensor immediately before freezing. Therefore, this heat pipe is used for the above-mentioned industrial ice making device and meat block freezing device, etc., and can greatly contribute to energy saving and its productivity, and its practical value is extremely large. .

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a cross-sectional configuration of a heat pipe according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating a cross-sectional configuration of a heat pipe according to a second embodiment of the present invention.

3 shows an enlarged cross-sectional configuration of an end portion of the heat pipe in FIG. 2, (A) shows a heat radiation side, and (B) shows a heat absorption side.

FIG. 4 is a cross-sectional view of a heat pipe in which a metal sealed tube is formed in a tapered shape in which a diameter is gradually reduced from a heat radiation side toward a heat absorption side head.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heat pipe 2 Metal sealed tube 3 Insulated sealing body 3AHeat dissipationSide terminal part 5 Cooling fin 9 shotsheatFor high resistance7 Heat radiation side sealed tube  8Heat absorbing side sealed tube  10 Freeze11 conductor (electrical conducting wire) 13, 14 hollow tube 16 heating power supply 17 temperature indicator

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F28D 15/06 F28D 15/02

Claims (6)

(57) [Claims] 1. From a metal sealed tube insertable into a frozen objectWhat
And insert the leading end of the metal sealed tube into the frozen object to absorb heat.
As the endothermic side to be performed, the terminal side is used to release the absorbed heat.
In the heat pipe configured as the heat side, At least a part of the members constituting the heat-absorbing side sealed tube portion Electric
Function as an air resistor orInside the heat absorbing side sealed tubeor
Is the sealed tubeDepartmentAt the specified siteAn electrical resistor is provided and the electrical resistor is
To antibodiesBy energizingMoneyGenus sealed tubeHeat absorptionThe side can be heated
A heat pipe characterized by the following. (2)The number of members constituting the heat-absorbing side sealed tube portion is small.
2. The method according to claim 1, wherein at least a part of the element functions as an electric resistor.
In the heat pipe, Of the heat radiation side sealed tube Gold from the terminal section through an insulating seal
Inside the genus sealed tubeConductorLet throughhand,The tipEndothermic side
In the sealed sectionConnectionLetOn the other handHeat absorbing side sealed tubeTo the designated part of
Connect the wiresAlong withThe conductorOther endAnd the conductorOther endwhile
To the heating power supplyHeat absorbing side sealed tubeEnables heat generation
2. The structure as claimed in claim 1, wherein:HinokiHeat pipe. (3)Install an electric resistor inside the heat-absorbing side sealed tube
The heat pipe according to claim 1, Of the heat radiation side sealed tube From the terminal section through an insulating seal
Resistance at the end of the conducting conductor inserted through the heat pipe
Connected to each other, and the energization of the resistanceHeat absorption
2. The heating device according to claim 1, wherein the side is configured to be heatable.of
HiHeat pipe. 4. A hollow tube capable of containing a refrigerant is hermetically supported at the ends of the metal tubes on the heat radiation side and the heat absorption side , respectively.
4. The electric conductor and the electric resistor are connected to the hollow tube, respectively, or the hollow tube forms a part of the electric conductor and the electric resistor. The heat pipe as described. 5. The heat pipe according to claim 1, wherein the metal sealed tube is formed in a tapered shape whose diameter gradually decreases from the heat radiation side to the heat absorption side. 6. The metal tube is provided with a metal tube on the heat-absorbing side of the metal tube.
Thermocouple machine arranged heterogeneous metal material that will be in contact supported a sealed tube
Function to detect the temperature of the heat absorbing side sealed tube.
The heat pipe according to claim 1, wherein