JP5404797B2 - Condensate evaporator for deriving condensed water by evaporating condensed water in a cooling device - Google Patents

Description

  The present invention relates to a cooling device, in particular for a switchboard, comprising a cooling circuit having a vaporizer, a condenser and a compressor. In this case, the condensed water which generate | occur | produced is vaporized within the condensed water evaporation apparatus provided with the condensed water storage chamber.

  Such a type of cooling device is used, for example, to regulate the temperature of the switchboard. A large number of electronic components are accommodated in the switchboard, and these electronic components emit a large amount of power loss as heat. Condensed water generated in the vaporizer falls as droplets and is stored in a condensed water collection container disposed under the vaporizer. It is known to supply condensed water from a condensed water collection container by means of a pump device to an electrically heated condensed water evaporator. The condensed water is vaporized in the condensed water evaporation device and discharged to the surroundings as water vapor.

  When the sensor device or float switch detects that the condensate in the condensate collection container has reached the filling limit level, on the one hand the pump device is switched on and on the other hand the heater in the condensate evaporator is switched on. Is done. When the condensate level in the condensate collection container falls below a predetermined filling level, both the pump device and the heater in the condensate evaporator are switched off. Such a solution is technically expensive and therefore requires an expensive cost to implement and thus requires additional energy for the electric heater of the condensate evaporator.

  In addition to performing condensed water evaporation with an electric heater, it is also known to use hot gas heat (high pressure line in the refrigerant circuit).

  The object of the present invention is to derive condensed water using a condensed water evaporation device, particularly in a cooling device, and to generate the condensed water at a technical cost as low as possible without requiring additional energy. It is to evaporate. In addition, the condensate evaporator used for this purpose must be as simple as possible.

  This problem is solved by a condensate evaporator having the features described in claim 1 and by a cooling device having the features described in claim 13. Advantageous embodiments are described in the dependent claims.

  According to the condensed water evaporation apparatus of the present invention, the storage chamber is disposed in thermal contact with the compressor, and is heated by the residual heat of the compressor in order to generate water vapor from the condensed water. For this purpose, according to the invention, the residual heat of the compressor is used to heat and evaporate the condensed water present in the storage chamber. For example, there is no need to use additional energy for an electrically driven heater. Rather, the residual heat generated by the compressor of the cooling device is used for evaporation.

  Therefore, the operating cost is reduced by using the condensate evaporator of the present invention. Moreover, an expensive structure is not necessary for the heater driven by additional energy. Overall, therefore, the condensate evaporator according to the invention is inexpensive to manufacture and operate.

  According to an advantageous embodiment of the invention, the storage chamber is in contact with the outer peripheral surface of the compressor and at least partially surrounds the compressor. This ensures, on the one hand, good thermal contact between the compressor and the storage chamber. On the other hand, a particularly compact structure is realized.

  In a particularly simple form, the storage chamber is configured as a receiving groove. The receiving groove has a substantially rectangular cross section that opens upward, and has a thin inner wall that contacts the outer peripheral surface of the compressor, a bottom portion, and an outer wall. Such a structure can be manufactured very simply, for example as a plastic injection molded part. In this case, the thinner the inner wall in contact with the outer peripheral surface of the compressor, the better the conduction of heat from the compressor to the condensed water to be evaporated present in the storage chamber.

  In order to further improve the conduction of heat from the compressor to the condensed water present in the storage chamber, a heat conductive paste can be provided between the inner wall of the storage chamber and the outer peripheral surface of the compressor.

  For example, the condensate water generated by falling below the dew point in the carburetor of the cooling device is introduced into the storage chamber of the condensate evaporator according to an advantageous embodiment via a supply tube.

  In order to be able to optimally introduce condensed water into the storage chamber, the supply tube is oriented substantially perpendicular to the bottom of the storage chamber and is held by a holding element. In this case, the holding element can be a cruciform sleeve or in particular a suitable rib device integrally molded at the bottom of the receiving chamber.

  In order to prevent the amount of condensed water in the storage chamber from becoming excessive and overflowing the control water in an uncontrollable manner, a through hole is formed in the bottom of the storage chamber, and an overflow pipe that enters the storage chamber into the through hole Is integrally molded. The height dimension of the overflow pipe with respect to the bottom of the storage chamber is smaller than the height dimension of the inner wall or the outer wall of the storage chamber with the bottom of the storage chamber as a base.

  In order to allow the condensate overflowing through the overflow pipe to overflow in a controllable manner, a tubular sleeve is integrally formed in a through-hole on the lower side of the bottom facing away from the storage chamber. A suitable effluent tube can be fitted over.

  The storage chamber has at least one region having an enlarged cross section, and an inflow tube holding element and / or an overflow pipe are integrally formed in the region. By such means, heat can be transferred almost continuously to the condensed water surrounding the outer peripheral surface of the compressor, and additional devices in this region do not hinder evaporation. Also, the enlarged area of the cross-section facilitates the operation when the additional tube is fitted over the holding element and / or when the outflow sleeve is fitted over the tubular sleeve of the overflow pipe.

  In order to improve the bending performance of the storage chamber to be attached to the outer peripheral surface of the evaporator, the storage chamber may have at least one region having a reduced cross section.

  According to another advantageous embodiment of the invention, the receiving chamber at least partly surrounds the outer peripheral surface of the compressor in a generally C-shape. In this case, the free end of the storage chamber is closed by the end wall.

  With the clamping element, the free end of the storage chamber can be clamped against the outer peripheral surface of the compressor. The clamping element (especially a spring clip) can be locked to an additional part integrally formed at the free end of the receiving chamber.

  The invention further provides a cooling device, in particular for a switchboard, comprising a cooling circuit having a vaporizer, a condenser and a compressor. In this cooling device, condensed water is introduced into the condensed water evaporator according to the present invention, and the condensed water evaporator is arranged in thermal contact with the compressor.

  The present invention will be specifically described below with reference to the drawings.

1 is a schematic perspective view of a condensate evaporator according to the present invention. FIG. 2 is a schematic plan view of the condensate evaporator shown in FIG. 1 with a spring clip at the free end. It is a schematic side view of the condensed water evaporation apparatus shown in FIG.1 and FIG.2. FIG. 4 is a schematic side view of a compressor to which the condensed water evaporator shown in FIGS. 1 to 3 is attached. FIG. 6 is a schematic front view of the compressor shown in FIG. 5 to which the condensed water evaporation device shown in FIGS. 1 to 3 is attached. FIG. 6 is a schematic plan view of the compressor shown in FIGS. 4 and 5 to which the condensed water evaporation device shown in FIGS. 1 to 3 is attached.

  FIG. 1 shows a condensate evaporator as an integrally formed plastic injection molding unit. The condensed water evaporation device has a storage chamber 12, and the storage chamber 12 is configured as a receiving groove curved in a substantially C shape. The storage chamber 12 has a substantially rectangular cross section opened upward, and has a bottom 18 and an outer wall 20. The storage chamber 12 can be connected to a supply tube (not shown). The supply tube introduces condensed water generated in a vaporizer (not shown) into the storage chamber 12. For this purpose, a holding element 22 is integrally formed on the bottom 18 of the storage chamber 12. Since the holding element 22 is configured as a cruciform sleeve, condensed water flows between the ribs of the cruciform sleeve crossing the cruciform when the supply tube is fitted. The bottom 18 of the storage chamber 12 has a through hole 24, and an overflow pipe 26 that enters the storage chamber 12 is integrally formed in the through hole 24.

  The height of the overflow pipe 26 on the bottom 18 of the storage chamber 12 is lower than the height of the outer wall 20 or the inner wall 16 of the storage chamber 12 on the bottom 18.

  The storage chamber 12 has a region 32 having an enlarged transverse section. This region 32 is formed by bending the outer wall 20 outward. In the region 32, on the one hand, a holding element 22 for covering and fitting the supply tube is arranged, and on the other hand, an overflow pipe 26 integrally formed in the through hole 24 is arranged.

  The storage chamber 12 further has a reduced area 34 in cross section. With this reduced cross-sectional area 34, the C-shaped containment chamber 12 can be flexibly bent for attachment to a compressor (not shown in FIG. 2).

  The C-shaped storage chamber 12 forms two free ends 36a and 36b. The free end 36a is closed by the end wall 38a, and the free end 36b is closed by the end wall 38b.

  In the free ends 36a and 36b of the storage chamber 12, additional portions 42a and 42b are integrally formed with extensions of the end walls 38a and 38b, respectively, and these additional portions 42a and 4b are formed as spring clips. The tightening element 40 is hooked. The clip-like tightening element 40 is formed of a leaf spring, and has two end portions 44a and 44b, and these end portions 44a and 44b are curved in an S shape or a Z shape. . The end portion 44 a of the tightening element 40 is snapped to an additional portion 42 a provided at the free end portion 36 a of the storage chamber 12, whereas the end portion 44 b of the tightening element 40 is free of the storage chamber 12. It snaps to an additional portion 42b provided at the end 36b.

  FIG. 3 shows a schematic side view of the condensate evaporator shown in FIGS. 1 and 2.

  According to FIG. 3, a region 32 with an enlarged cross section is attached to the side of the storage chamber 12. The bottom of the region 32 is shifted upward in a step shape with respect to the bottom 18 of the storage chamber 12.

  A tubular sleeve 30 for accommodating an outflow tube (not shown) in the through hole 24 on the lower surface 28 of the bottom of the storage chamber 18 or the region 32 opposite to the storage chamber 12 or the region 32. Is integrally molded.

  FIG. 4 shows a schematic side view of the compressor 10, and the condensed water evaporator shown in FIGS. 1 to 3 is attached to the compressor 10. FIG. 5 shows a front view of the compressor 10 shown in FIG.

  The compressor 10 has a substantially cylindrical outer peripheral surface 14. A droplet separator 46 is disposed on the front side of the compressor 10, and the droplet separator 46 is connected to the compressor 10 via a curved tube 48.

  FIG. 6 shows a schematic plan view of the compressor 10 shown in FIGS. 4 and 5.

  The storage chamber 12 of the condensed water evaporator is disposed in thermal contact with the compressor 10. In this case, the storage chamber 12 is in contact with the outer peripheral surface 14 of the compressor. The accommodating chamber 12 configured as a receiving groove has a thin inner wall 16 in direct contact with the outer peripheral surface 14 of the compressor 10. In addition, a heat conductive paste (not shown) can be provided between the outer peripheral surface 14 of the compressor 10 and the inner peripheral surface 16 of the storage chamber 12.

  The storage chamber 12 is fastened to the outer peripheral surface 14 of the compressor 10 by a fastening element 40.

  The clamping element 40 has a notch 50 in the region of the curved tube 48, through which the curved tube 48 extends from the compressor 10 to the droplet separator 46.

  The compressor 10 shown in FIGS. 4 to 6 is part of a cooler (not shown), particularly for a switchboard. The cooling circuit of this type of cooling device further comprises at least one compressor and a condenser next to the compressor 10. The condensed water generated in the vaporizer is introduced into the condensed water evaporator shown in FIGS. 1 to 6, where it is heated by the residual heat of the compressor 10 and vaporized thereby.

  10 compressor, 12 storage chamber, 14 outer peripheral surface of compressor 10, 16 inner peripheral surface of storage chamber 12, 18 bottom, 20 outer wall, 22 holding element, 24 through hole, 26 overflow pipe, 30 sleeve, 32 of cross section Enlarged area, 34 Reduced area of cross section, 36a, 36b Free end, 38a, 38b End wall, 40 Tightening element, 42a, 42b Additional part, 46 Droplet separator, 48 Curved tube, 50 Notch

Claims (14)

A condensate evaporator for a cooling device having at least one vaporizer and a compressor (10), comprising a containment chamber (12) for condensate to be evaporated generated in the cooler. In the form of having
The storage chamber (12) is placed in thermal contact with the compressor (10) and is heated by the residual heat of the compressor (10) to generate water vapor from the condensed water ;
The storage chamber (12) is in contact with the outer peripheral surface (14) of the compressor (10);
The storage chamber (12) partially surrounds the outer peripheral surface (14) of the compressor (10) in a substantially C shape, and the free ends (36a, 36b) of the storage chamber (12) are terminal walls ( 38a, 38b) have been closed by, and said tightening enabling der Rukoto the outer peripheral surface of the compressor (10) (14) by clamping elements (40), evaporation of the condensed water in the cooling device Condensate evaporation device that extracts condensed water by   The receiving chamber (12) is configured as a receiving groove, and the receiving groove has a substantially rectangular cross section that opens upward, and contacts the outer peripheral surface (14) of the compressor (10). The condensate evaporator according to claim 1, comprising a thin inner wall (16), a bottom (18) and an outer wall (20) in contact with each other.   The condensed water evaporator according to claim 1, wherein a heat conductive paste is provided between the inner wall (16) of the storage chamber (12) and the outer peripheral surface (14) of the compressor (10).   The condensate evaporator according to claim 1, wherein the storage chamber (12) is connectable to a supply tube for introducing condensed water into the storage chamber (12). Said feed tube, they are oriented substantially perpendicular to the bottom (18) of the housing chamber (12), and is therefore held in a holding element (22), condensed water vaporization apparatus according to claim 1. 6. The condensate evaporator according to claim 5, wherein the holding element (22) is a cruciform sleeve.   A through hole (24) is provided in the bottom (18) of the storage chamber (12), and an overflow pipe (26) that enters the storage chamber (12) is integrally formed in the through hole (24). The height of the overflow pipe with respect to the bottom (18) of the storage chamber (12) is the bottom of the storage chamber (12) of the inner wall or the outer wall (20) of the storage chamber (12). The condensed water evaporator according to claim 1, which is smaller than a height dimension based on (18).   A tubular sleeve (30) for accommodating the outflow tube is integrally formed in a through hole (24) provided in the lower surface (28) of the bottom portion (18), which faces away from the accommodation chamber (12). The condensate evaporator according to claim 1, which is molded.   The containment chamber (12) has at least one region (32) with an enlarged cross-section, in which the inflow tube retaining element (22) and / or the overflow pipe (26) are located. The condensate evaporator according to claim 1, which is integrally formed.   The condensate evaporator according to claim 1, wherein the containment chamber has at least one region of reduced cross-section for enhancing bending performance. The additional portion (42a, 24b) is integrally formed with the free end (36a, 36b) of the storage chamber (12), and the tightening element (40 ) can be locked to the additional portion. The condensed water evaporator as described. 12. The condensate evaporator according to claim 11, wherein the clamping element (40) is a spring clip. In cooling device including a cooling circuit having an evaporator and a condenser and the compressor (10),
Condensed water can be introduced into the condensed water evaporator according to any one of claims 1 to 12, and the condensed water evaporator is arranged in thermal contact with the compressor (10). A cooling device characterized by. 14. The cooling device according to claim 13, wherein the cooling device is for a switchboard.

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