JPH065579Y2 - Absorption refrigerator - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an absorption refrigerator, and more particularly to a portable absorption refrigerator, and more particularly to an absorption refrigerator having a refrigerant circulation system having an inclined pipe installed in a refrigerator body. 2. Description of the Related Art The related art and its problems The absorption type refrigerator uses an absorption type refrigeration cycle to cool foods and the like stored in the refrigerator body. Here, the absorption refrigeration cycle is a method of heating a concentrated solution to an appropriate temperature to separate it into a vapor and a dilute solution, condensing the vapor to liquefy it, and then vaporizing it again to generate vaporized refrigerant. And the refrigerant is absorbed in the dilute solution to make a concentrated solution.

In an absorption refrigerator having a refrigerant circulation system equipped with such an absorption refrigeration cycle, the pipes of the absorber and the evaporator constituting the refrigerant circulation system are arranged in an inclined manner, and refrigerant circulation and heat The cooling effect is improved by making the exchange action effective and smooth.

However, when the absorption refrigerator is installed in a state of being inclined with respect to the installation surface, the inclined pipe is in a substantially parallel state with respect to the installation surface or is in an upward gradient state with respect to the flow direction of the refrigerant. Therefore, there is a problem that the circulation of the refrigerant is deteriorated and the cooling capacity is lowered.

It is the actual situation that such a decrease in the cooling capacity is not known until a user uses it for a certain period of time. That is, as a result of storing the food or the like in the refrigerator in a state where the refrigerator is installed diagonally and leaving it as it is, the food or the like is not cooled as desired, or the food or the like is spoiled. It is the reality that the user knows the malfunction of the refrigerator by such a fact.

Further, when it is found that the cooling capacity is deteriorated under such a situation, there is a problem that the gas of the gas burner, which is a source of energy, the electric power of the electric heater, and the like are wastefully consumed in addition to the decay of food and the like.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an absorption refrigerator in which the level of the installed state can be easily confirmed with a simple improvement.

Means for Solving the Problems In order to achieve the above object, the present invention is an absorption type refrigerator in which a refrigerant circulation system having an inclined pipe is installed in a refrigerator main body, and a visible installation angle recognition member is in an appropriate position of the refrigerator main body. It is characterized by being attached to.

Effects According to the above configuration, since the visible installation angle recognition member is attached to the refrigerator in the proper place, the refrigerator can be installed with an appropriate installation angle, and the refrigerator always has the cooling capacity as designed. It becomes possible to operate.

Embodiment Hereinafter, an embodiment according to the present invention will be described in detail with reference to the drawings.

FIG. 3 is a side sectional view of a diffusion absorption type refrigerator as an example of the absorption type refrigerator according to the present invention. In the diffusion absorption type refrigerator, a refrigerant circulation system 2 for performing a cooling operation is provided in the refrigerator body. It is decorated in 3.

The refrigerator main body 3 includes a first box body 4 for storing foods and the like.
And a second box body 5 on the back side of the first box body 4 and integrally formed with the first box body 4, and the main part of the refrigerant circulation system 2 Is installed in the second box 5. The open / close door 6 is used to open / close the refrigerator body 3.

The refrigerant circulation system 2 includes a generator 7, a separator 8 and a condenser 9
And an evaporator 10 and an absorber 11. Also,
The refrigerant circulation system 2 is filled with ammonia as a refrigerant, water as a refrigerant absorbing medium, and hydrogen as a pressure equilibrium gas.

FIG. 4 is a view taken along the line (II) of FIG.

That is, the generator 7 includes a siphon pump 12 and a heater 13 attached to the siphon pump 12. As the heater 13, a gas burner is used in this embodiment, but an electric heater or the like may be used. Further, the siphon pump 12 has a double pipe structure composed of an inner pipe 15 connected to the liquid reservoir 14 and an outer pipe 16 connected to the absorber 11. In the generator 7, the concentrated ammonia solution flowing from the liquid reservoir 14 into the inner pipe 15 is heated by the heater 13 and changed into ammonia gas and diluted ammonia solution. Then, the diluted ammonia solution overflowing the inner pipe 15 flows into the absorber 11 through the outer pipe 16.

Further, the tip of the generator 7 is bent and integrally connected to the separator 8. The separator 8 is arranged so as to be inclined so as to have a slight upward slope, and is configured to perform a rectification action, and completely removes the ammonia gas rising from the siphon pump 12 and the dilute ammonia solution. Gas-liquid separation. Then, the dilute ammonia solution travels along the tube wall of the separator 8 in the direction of arrow A and flows into the outer tube 16 of the generator 7.

The tip of the separator 8 is folded back and connected to the condenser 9. In this condenser 9, the ammonia gas is liquefied and liquid ammonia is produced.

Further, the tip of the condenser 9 merges with the hydrogen introducing pipe 17 that communicates with the liquid reservoir 14, and is connected to the evaporator 10.

The evaporator 10 projects into the first box body 4, and hydrogen gas is introduced into the evaporator 10 to evaporate liquid ammonia and cool the inside of the first box body 4. Further, although not shown in the drawings, the pipes constituting the evaporator 10 are arranged in an inclined manner so as to have a downward gradient with respect to the flow direction of ammonia (refrigerant), and the ammonia flow is performed smoothly and efficiently. It is configured to perform heat exchange. In the present embodiment, the inclination angle of the pipe of the evaporator 10 is
It is set at about 3 ° with respect to the bottom surface of the refrigerator body 3.

The tip of the evaporator 10 is connected to the absorber 11.

The pipe 18 forming the absorber 11 is wound in a substantially spiral shape, and its tip is connected to the liquid reservoir 14. That is, like the pipe of the evaporator 10, the pipe 18 is also arranged so as to be inclined so as to have a downward slope with respect to the flow direction of the mixed gas (ammonia and hydrogen) coming out of the evaporator 10. Like the pipe of the evaporator 10, the pipe 18 of the absorber 11 and the pipe 18 of the evaporator 11 are arranged in a slanted shape, so that the mixed gas flows smoothly. Is configured. In this embodiment, the inclination angle of the pipe 18 is also the same as that of the evaporator 1
Like the 0 pipe, it is set at about 3 ° with respect to the bottom surface of the refrigerator body 3. The outer pipe 16 of the siphon pump 12 is connected to the absorber 11 from below as described above.

FIG. 5 is a flow chart showing the refrigeration cycle of the refrigerant circulation system 2. That is, the heater 13 of the generator 7 heats the concentrated ammonia solution to generate ammonia gas and a dilute ammonia solution, which rises in the siphon pump 12 as indicated by an arrow a. Then, the diluted ammonia solution and the ammonia gas are completely gas-liquid separated in the separator 8.

Then, the dilute ammonia solution is dropped by gravity so that the arrow b
As shown in FIG.

On the other hand, the ammonia gas proceeds to the condenser 9 as shown by the arrow c, is cooled by the outside air, and is liquefied to generate liquid ammonia. This liquid ammonia is stored in the liquid reservoir 14
The hydrogen gas (shown by an arrow d) flowing from the gas flows into the evaporator 10 projecting into the first box 4 while diffusing. Then, in the evaporator 10, since the entire system is kept at a constant pressure, the pressure of the liquid ammonia decreases due to the mixing of the liquid ammonia and hydrogen gas, and the evaporation of the liquid ammonia starts. At this time, the liquid ammonia absorbs heat from the surroundings to remove the heat in the first box body 4,
Cool the inside. Then, the mixed gas of hydrogen and ammonia discharged from the evaporator 10 flows in the direction of the arrow e to move to the absorber 11
The concentrated ammonia solution flows into the inside of the separator 8 and is absorbed by the diluted ammonia solution (indicated by the arrow b) flowing from the separator 8, and the concentrated ammonia solution separates hydrogen gas into the liquid reservoir 14. Pour in. And the liquid reservoir 14
In, the hydrogen gas having a low specific gravity moves toward the evaporator 10 again as shown by the arrow d, and the concentrated ammonia solution returns to the generator 7 as shown by the arrow f, and the above-described operation is repeated.

In FIG. 3, reference numeral 19 denotes an installation angle recognition member, which is fixed to the upper part of the back surface 27 of the second box body 5 by a fixing tool such as a screw.

Specifically, the installation angle recognition member 19, as shown in FIGS. 1 and 2, has a recognition member main body 20, a support 21,
The pendulum 22 is supported by the support column 21.

The recognition member main body 20 is made of a transparent resin so as to be visible from the outside, has a substantially U-shaped cross section, and has a projecting piece 23 formed on an upper portion thereof. Is pierced through and can be fixed to the second box body 5 by a fixing tool such as a screw.

The column 21 includes a bottom surface portion 28 and a protrusion portion 29,
The height dimension 1 of the protrusion 29 is formed smaller than the height dimension L of the recognition member main body 21 so that the pendulum 22 can be supported. Further, the bottom surface portion 28 of the support column 21 is formed in the same shape as the bottom surface 25 of the recognition member main body 20, and is fixed to the recognition member main body 20 with an adhesive. Regarding the method of fixing the recognition member main body 20 and the support column 21, it goes without saying that a fixing tool such as a screw may be used instead of the adhesive.

In addition, on the surface of the bottom surface portion 28 of the support column 21, the protrusion 29
A mark plate 26 having a circular mark 26a centered at is joined. This mark 26a is
It is colored and formed with a chromatic color such as red or yellow so that it can be easily visually recognized from the outside.

Further, the pendulum 22 is formed in a substantially conical shape, and the diameter of the bottom surface 30 thereof is formed smaller than the diameter of the mark 26a.

Thus, the diameter of the mark 26a and the diameter of the bottom surface 30 of the pendulum 22 are determined according to the inclination angles of the pipes forming the evaporator 10 and the pipe 18 forming the absorber 11. . That is, when the refrigerator is installed with the same inclination angle as the inclination angle of these pipes, the outer periphery of the bottom surface 30 of the plan view pendulum 22 has the mark 26.
Mark 2 to overlap at any point on the circumference of a
6a is formed. In other words, in the case where the refrigerator is installed so as to be inclined more than the inclination angle of the pipe,
The mark 26a is formed on the mark plate 26 so that the bottom surface 30 of the pendulum 22 in plan view protrudes from the mark 26a. That is, in the present embodiment, as described above, since the pipe is formed with the inclination angle of 3 °, when the refrigerator is inclined by 3 ° or more with respect to the installation surface, the bottom surface 30 of the pendulum 22 has the mark 26a in plan view. It is formed so as to protrude.

In the absorption refrigerator having the installation angle recognition member 19 as described above, when the refrigerator is installed obliquely with respect to the installation surface, it is visually recognized that the bottom surface 30 of the pendulum 22 protrudes from the plan view mark 26a. By sandwiching a floor plate or the like between the refrigerator and the installation surface, the refrigerator can be operated in an appropriate installation state. Therefore, it is possible to prevent spoilage of food and the like due to improper installation state, and to prevent wasteful consumption of gas from the gas burner, which is an energy source.

It is needless to say that the present invention is not limited to the above-mentioned embodiment and can be modified within the scope of the invention. Regarding the installation position of the installation angle recognition member 19, the installation position recognition member 19 may be installed below the back surface 27 of the second box body 5 instead of above the back surface 27, or in the vicinity of the bottom surface inside the refrigerator body 3 or the like. Also, the installation angle recognition member 1
Also for the shape of 9, a so-called spirit level may be used instead of the pendulum shape as described above. In this case, the refrigerator main body 3 can be attached to the upper plate surface or the like. Effect of the Invention As described in detail above, the present invention provides an absorption type refrigerator in which a refrigerant circulation system having an inclined pipe is installed in a refrigerator body.
Since the visually recognizable installation angle recognition member is attached at a proper position of the refrigerator body, the refrigerator can be installed at an appropriate installation angle while visually recognizing the installation angle recognition member.

Therefore, the defective circulation of the refrigerant due to the improper installation state will not occur, and the cooling capacity will not decrease due to the improper installation state.

That is, since the absorption refrigerator according to the present invention can install the refrigerator while visually recognizing the installation angle recognition member,
It is possible to immediately judge whether the installation state is proper, wasteful consumption of energy source of refrigerant such as electricity or gas, and prevent spoilage of food etc. stored in the refrigerator body in advance. can do.

As described above, the present invention makes it possible to easily install a refrigerator in a proper state at all times, and is particularly suitable for a portable absorption refrigerator that is used by frequently moving the installation location.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of an installation angle recognition member attached to an absorption refrigerator according to the present invention, FIG. 2 is a perspective view of the installation angle recognition member, and FIG. 3 is a side view of the absorption refrigerator. Sectional view, FIG. 4 is a view taken along the line (II) of FIG. 3, and FIG.
The figure is a flow explanatory diagram illustrating a refrigeration cycle of a refrigerant circulation system. 2 ... Refrigerant circulation system, 3 ... Refrigerator main body, 18 ... Piping (tilted piping), 19 ... Installation angle recognition member.

Claims (1)

[Scope of utility model registration request] 1. An absorption refrigerator in which a refrigerant circulation system having an inclined pipe is installed in a refrigerator body, wherein a visible installation angle recognition member is attached to an appropriate position of the refrigerator body. .