JP6565290B2 - Waste heat treatment equipment - Google Patents

Description

  The present invention relates to an exhaust heat treatment apparatus, and more particularly to an apparatus for treating the exhaust heat of each refrigerator of a plurality of showcases arranged in parallel in a room such as a store.

  Conventionally, as a showcase for holding a commodity to be stored at a desired temperature state, not only an evaporator for cooling the commodity but also a refrigeration for supplying refrigerant to the evaporator and sucking refrigerant from the evaporator A device having a built-in machine is known (for example, see Patent Document 1).

  Such a showcase has the advantage that it does not require local piping work and is easy to install.

JP 2003-204847 A

  By the way, when multiple such showcases are installed inside a room such as a store, introduction of introducing outside air into the showcase to exhaust the exhaust heat of the refrigerator of each showcase to the outside of the room A duct and a delivery duct for sending exhaust heat to the outside of the room are required for each showcase. As a result, the duct installation work becomes complicated and the manufacturing cost may increase. .

  In view of the above circumstances, an object of the present invention is to provide an exhaust heat treatment apparatus capable of suppressing an increase in manufacturing cost while simplifying a duct installation operation.

In order to achieve the above object, an exhaust heat treatment apparatus according to the present invention is an apparatus for treating exhaust heat of a refrigerator built in each of a plurality of showcases arranged in parallel in a chamber, An air supply duct configured by connecting the air supply duct components communicating with the refrigerator inside each showcase, and an exhaust duct component communicating with the refrigerator inside each showcase are mutually connected. An exhaust duct configured to be connected, an introduction duct for guiding outside air introduced through an introduction port formed in the chamber to the supply duct, and an exhaust port formed in the chamber for air that has passed through the exhaust duct And a delivery duct for guiding.

  In the exhaust heat treatment apparatus, the present invention further includes exhaust means for sucking air passing through the exhaust duct by being driven and exhausting the air through the exhaust port, and the introduction duct is driven by driving the exhaust means. The outside air introduced through the introduction port is guided to the air supply duct.

  Further, the present invention is characterized in that the exhaust heat treatment apparatus includes an air supply means that is disposed in the introduction duct and is driven to introduce outside air through the introduction port and supply the outside air to the supply duct. To do.

  In the exhaust heat treatment apparatus according to the present invention, at least one of the air supply unit and the exhaust unit has a variable air volume.

  According to the present invention, the air supply duct components are connected to form an air supply duct, and the exhaust duct components are connected to each other to form an exhaust duct. An introduction duct that supplies air introduced through the exhaust duct and a delivery duct that sends out the air that has passed through the exhaust duct to the outside through the discharge port may be provided. That is, it is not necessary to provide an introduction duct for supplying outside air to the showcase and a delivery duct for sending exhaust heat to the outside of the store as in the conventional case, and the number of parts can be reduced. Therefore, there is an effect that an increase in manufacturing cost can be suppressed while simplifying the duct installation work.

FIG. 1 is an explanatory view schematically showing an exhaust heat treatment apparatus according to Embodiment 1 of the present invention. FIG. 2 is an explanatory view showing the showcase shown in FIG. FIG. 3 is an explanatory view schematically showing an exhaust heat treatment apparatus according to Embodiment 2 of the present invention. FIG. 4 is an explanatory view showing the showcase shown in FIG. FIG. 5 is a chart showing changes in pressure with respect to the passage distance of outside air introduced from the inlet.

  Exemplary embodiments of an exhaust heat treatment apparatus according to the present invention will be described below in detail with reference to the accompanying drawings.

<Embodiment 1>
FIG. 1 is an explanatory view schematically showing an exhaust heat treatment apparatus according to Embodiment 1 of the present invention. The exhaust heat treatment apparatus illustrated here performs an exhaust heat treatment of a plurality of (three in the illustrated example) showcases 20 arranged in parallel in a store (room) 10, for example.

  These showcases 20 are so-called open showcases, and as shown in FIG. 2, the products are stored in a storage chamber 21 facing the front opening while being held at a desired temperature state.

  In the showcase 20, an evaporator 22 and a refrigerator 23 are provided in the upper area of the storage chamber 21. The evaporator 22 cools the internal air of the storage chamber 21. The refrigerator 23 includes a compressor 23 a and a condenser 23 b, and supplies the refrigerant to the evaporator 22 and sucks the refrigerant from the evaporator 22 to constitute the refrigeration cycle with the evaporator 22. . The code | symbol 23c in FIG. 2 is the exhaust heat fan arrange | positioned in the vicinity of the condenser 23b.

  In the showcase 20, an air supply duct component 24 and an exhaust duct component 25 are provided. Each of the air supply duct component 24 and the exhaust duct component 25 is an air passage, and communicates with each other via the refrigerator 23.

  The exhaust heat treatment apparatus includes an air supply duct 31, an exhaust duct 32, an introduction duct 33, and a delivery duct 34.

  The air supply duct 31 is configured by connecting the air supply duct components 24 of the showcases 20 adjacent to each other. The exhaust duct 32 is configured by connecting the exhaust duct components 25 of the showcases 20 adjacent to each other.

  The introduction duct 33 is provided in the attic of the store 10. The introduction duct 33 communicates with the introduction port 11 formed in the store 10 and communicates with the air supply duct 31 through the air supply pipe 26 provided in the showcase 20. Here, the air supply pipe 26 is provided so as to protrude upward from the upper surface of the case main body 20a of the showcase 20 disposed on one end side of the side-by-side showcases 20, and penetrates the ceiling of the store 10. It is.

  The delivery duct 34 is provided in the attic of the store 10 like the introduction duct 33. The delivery duct 34 communicates with the exhaust port 12 formed in the store 10 and also communicates with the exhaust duct 32 via the exhaust pipe 27 provided in the showcase 20. Here, the exhaust pipe 27 is provided so as to protrude upward from the upper surface of the case body 20a of the showcase 20 disposed on the other end side of the showcases 20 arranged side by side, and penetrates the ceiling of the store 10. Is.

  An exhaust fan (exhaust means) 35 is provided in the middle of the delivery duct 34. The exhaust fan 35 sucks air passing through the exhaust duct 32 when driven by a drive command.

  In the exhaust heat treatment apparatus having the above-described configuration, when the exhaust fan 35 is driven, air suction force also acts on the air supply duct 31 and the introduction duct 33 via the exhaust duct 32, thereby the introduction port. 11, outside air is introduced. The outside air thus introduced reaches the air supply duct 31 after passing through the introduction duct 33.

  The outside air that has reached the air supply duct 31 partially branches while passing through the air supply duct 31, passes around the refrigerator 23, exchanges heat with the refrigerator 23, becomes high temperature, and is exhausted as it is. Enter the duct 32.

  The air that has entered the exhaust duct 32 is sucked by the exhaust fan 35, passes through the delivery duct 34, and is then discharged to the outside through the discharge port 12.

  According to such an exhaust heat treatment apparatus, the air supply duct components 24 of the showcases 20 adjacent to each other are connected to form the air supply duct 31 and the exhaust duct components 25 of the showcases 20 adjacent to each other. Are connected to each other to form an exhaust duct 32. Therefore, an introduction duct 33 for supplying air introduced through the introduction port 11 to the showcase 20 and an air passing through the exhaust duct 32 to the outside through the discharge port 12. A delivery duct 34 for delivery may be provided. That is, it is not necessary to provide an introduction duct for supplying outside air to the showcase and a delivery duct for sending exhaust heat to the outside of the store as in the conventional case, and the number of parts can be reduced.

  Therefore, an increase in manufacturing cost can be suppressed while simplifying the duct installation work.

<Embodiment 2>
FIG. 3 is an explanatory view schematically showing an exhaust heat treatment apparatus according to Embodiment 2 of the present invention. The exhaust heat treatment apparatus illustrated here performs the exhaust heat treatment of a plurality of (three in the illustrated example) showcases 50 arranged in parallel in the store (room) 40, for example.

  These showcases 50 are referred to as so-called open showcases. As shown in FIG. 4, the showcases 50 are for storing products in a storage chamber 51 facing the front opening while holding the products at a desired temperature state.

  In such a showcase 50, an evaporator 52 and a refrigerator 53 are provided above the storage chamber 51. The evaporator 52 cools the internal air of the storage chamber 51. The refrigerator 53 includes a compressor 53a and a condenser 53b, and constitutes a refrigeration cycle with the evaporator 52 by supplying the refrigerant to the evaporator 52 and sucking the refrigerant from the evaporator 52. . The code | symbol 53c in FIG. 4 is the exhaust heat fan arrange | positioned in the vicinity of the condenser 53b.

  In the showcase 50, an air supply duct component 54 and an exhaust duct component 55 are provided. Each of the air supply duct component 54 and the exhaust duct component 55 is a ventilation path, and communicates with each other via the refrigerator 53.

  The exhaust heat treatment apparatus includes an air supply duct 61, an exhaust duct 62, an introduction duct 63, and a delivery duct 65.

  The air supply duct 61 is configured by connecting the air supply duct components 54 of the showcases 50 adjacent to each other. The exhaust duct 62 is configured by connecting the exhaust duct components 55 of the showcases 50 adjacent to each other.

  The introduction duct 63 is provided in the attic of the store 40. The introduction duct 63 communicates with an introduction port 41 formed in the store 40 and communicates with an air supply duct 61 through an air supply pipe 56 provided in the showcase 50. Here, the air supply pipe 56 is provided so as to protrude upward from the upper surface of the case main body 50a of the showcase 50 arranged on one end side among the showcases 50 provided side by side, and penetrates the ceiling of the store 40. It is.

  An air supply fan (air supply means) 64 is provided in the middle of the introduction duct 63. The air supply fan 64 is supplied with a drive command and is driven to introduce outside air through the introduction port 41 and supply it to the air supply duct 61 through the air supply pipe 56.

  The delivery duct 65 is provided in the attic of the store 40 similarly to the introduction duct 63. The delivery duct 65 communicates with the discharge port 42 formed in the store 40 and communicates with the exhaust duct 62 via the exhaust pipe 57 provided in the showcase 50. Here, the exhaust pipe 57 is provided so as to protrude upward from the upper surface of the case main body 50a of the showcase 50 disposed on the other end side of the showcases 50 arranged side by side, and penetrates the ceiling of the store 40. Is.

  An exhaust fan (exhaust means) 66 is provided in the middle of the delivery duct 65. The exhaust fan 66 sucks air passing through the exhaust duct 62 when driven by a drive command.

  The air supply fan 64 and the exhaust fan 66 are capable of variable speed control in which the rotational speeds are individually variable, that is, each air volume is variable.

  In the exhaust heat treatment apparatus having the above-described configuration, the external air flows as follows when the air supply fan 64 and the exhaust fan 66 are each driven at a predetermined rotational speed. That is, when the air supply fan 64 is driven, outside air is introduced into the introduction duct 63 through the introduction port 41. The outside air introduced into the introduction duct 63 is supplied to the air supply duct 61 by the air supply fan 64. The outside air supplied to the air supply duct 61 by driving the air supply fan 64 is partially branched while passing through the air supply duct 61 and passes around the refrigerator 53 to exchange heat with the refrigerator 53. And become hot. Then, by driving the exhaust fan 66, the outside air of the air supply duct 61 enters the exhaust duct 62. The outside air that has entered the exhaust duct 62 passes through the delivery duct 65 and is then discharged to the outside through the discharge port 42.

  A change in the pressure of the outside air during the passage of the outside air will be described. FIG. 5 is a chart showing the pressure change with respect to the passage distance of the outside air introduced from the introduction port 41, where the abscissa indicates the passage distance of the outside air, and the ordinate indicates the ratio of the pressure of the outside air with the atmospheric pressure being “0”. ing. The passing distance d0 indicates the position of the introduction port 41.

  As shown in FIG. 5, the outside air introduced from the introduction port 41 (passing distance d0) becomes a negative pressure up to the location where the air supply fan 64 having the passage distance d1 is disposed. In the air supply duct 61 whose pressure is increased to the passing distance d2, it becomes substantially equal to the atmospheric pressure. Thereafter, the pressure is increased by the exhaust fan 66 disposed at the passage distance d3, and the pressure is discharged to the outside through the discharge port 42 at the passage distance d4.

  Since the air supply fan 64 and the exhaust fan 66 can be controlled at the variable speed in this way, the air volume at the air supply fan 64 and the exhaust fan 66 can be adjusted, and the outside air substantially equal to the atmospheric pressure can be passed through the air supply duct 61. .

  According to such an exhaust heat treatment apparatus, the air supply duct components 54 of the showcases 50 adjacent to each other are connected to form the air supply duct 61, and the air exhaust duct components 55 of the adjacent showcases 50 are connected to each other. Are connected to each other to form the exhaust duct 62, so that the introduction duct 63 for supplying air introduced through the introduction port 41 to the showcase 50 and the air passing through the exhaust duct 62 to the outside through the discharge port 42 are provided. A delivery duct 65 for delivery may be provided. That is, it is not necessary to provide the introduction duct 63 for supplying outside air to the showcase 50 and the delivery duct 65 for sending the exhaust heat to the outside of the store 40 as in the conventional case, and the number of parts can be reduced. Can do.

  Therefore, an increase in manufacturing cost can be suppressed while simplifying the duct installation work.

  According to the exhaust heat treatment apparatus, the air volume of the air supply fan 64 and the exhaust fan 66 can be adjusted to allow the external air substantially equal to the atmospheric pressure to pass through the air supply duct 61. Even if it connects only with a typical seal structure, it can suppress that air other than desired air flows in into the inside of the air supply duct 61 from the circumference | surroundings, and can reduce the penetration | invasion of excess heat. In addition, with a simple seal structure, man-hours during construction and maintenance can be reduced, and reliability can be improved.

  The preferred embodiment 1 and embodiment 2 of the present invention have been described above, but the present invention is not limited to these, and various modifications can be made.

  In the practical form 1 described above, outside air introduced through the inlet 11 by driving the exhaust fan 35 provided in the delivery duct 34 is allowed to pass through the air supply duct 31 and the exhaust duct 32. In the invention, the exhaust fan may not be provided. That is, the outside air introduced through the inlet 11 may be made to pass through the air supply duct 31 and the exhaust duct 32 by driving the exhaust heat fan 23c constituting the refrigerator 23.

  In the second embodiment described above, the outside air introduced through the introduction port 41 by driving the air supply fan 64 provided in the introduction duct 63 and the exhaust fan 66 provided in the delivery duct 65 is used as the air supply duct 61 and the exhaust air. In the present invention, the exhaust fan 66 is not provided, and only the air supply means (the air supply fan 64) may be provided. That is, the outside air introduced through the inlet (41) by driving the air supply means may pass through the air supply duct (61) and the exhaust duct (62). According to this, the outside air passing through the air supply duct (61) can be set to a positive pressure, and it is possible to suppress the flow of air other than desired air from the surroundings into the air supply duct (61). It is possible to reduce excessive heat intrusion.

  In Embodiment 1 and Embodiment 2 described above, the introduction ducts 33 and 63 and the delivery ducts 34 and 65 are provided in the attic of the stores 10 and 40. However, in the present invention, the introduction duct and the delivery duct are , May be provided inside the side wall of the room (store or the like).

10 stores (rooms)
DESCRIPTION OF SYMBOLS 20 Showcase 21 Storage chamber 22 Evaporator 23 Refrigerator 23a Compressor 23b Condenser 23c Exhaust heat fan 24 Air supply duct component 25 Exhaust duct component 31 Supply air duct 32 Exhaust duct 33 Introductory duct 34 Outlet duct 35 Exhaust fan 40 Store (room)
DESCRIPTION OF SYMBOLS 50 Showcase 51 Storage chamber 52 Evaporator 53 Refrigerator 53a Compressor 53b Condenser 53c Exhaust heat fan 54 Air supply duct component 55 Exhaust duct component 61 Air supply duct 62 Exhaust duct 63 Introductory duct 64 Air supply fan 65 Delivery duct 66 Exhaust fan

Claims (4)

An apparatus for treating exhaust heat of a refrigerator built in each of a plurality of showcases arranged in parallel in a room,
An air supply duct configured by connecting the air supply duct components communicating with the refrigerator inside each showcase, and
Exhaust ducts configured by mutually connecting exhaust duct components communicating with the refrigerator inside each showcase;
An introduction duct for guiding outside air introduced through the introduction port formed in the chamber to the air supply duct;
An exhaust heat treatment apparatus comprising: a delivery duct that guides air that has passed through the exhaust duct to a discharge port formed in the chamber. An exhaust means for sucking air passing through the exhaust duct by driving and exhausting the air through the exhaust port;
2. The exhaust heat treatment apparatus according to claim 1, wherein the introduction duct guides outside air introduced through the introduction port to the supply duct by driving the exhaust unit. Wherein disposed in the inlet duct, and discharging the heat treatment according to 請 Motomeko 2 you comprising the air supply means for supplying to said air supply duct to introduce the outside air through the inlet port by driving apparatus.   The exhaust heat treatment apparatus according to claim 3, wherein the air volume of at least one of the air supply means and the exhaust means is variable.

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