CN100594343C

CN100594343C - Condensation water drainage configuration used for evaporator unit

Info

Publication number: CN100594343C
Application number: CN200580051211A
Authority: CN
Inventors: L·d·L·莫雷斯
Original assignee: Carrier Corp
Current assignee: Carrier Corp
Priority date: 2005-07-29
Filing date: 2005-07-29
Publication date: 2010-03-17
Anticipated expiration: 2025-07-29
Also published as: CN101273241A; KR100951507B1; EP1910759A2; WO2007012161A3; WO2007012161A2; HK1124656A1; EP1910759A4; KR20080017479A; BRPI0520457A2

Abstract

An evaporator unit which is adaptable to be installed in either a horizontal or a vertical orientation is provided with a single drain pan which will accommodate either installation. The drain pan isa composite of an inner and outer shell and includes a pair of troughs with one trough being adapted to collect the condensate in a vertical orientation and the other trough being adapted to collect the condensate in a horizontal orientation. A drainage fixture is disposed at one end of the drain pan for receiving condensate flow from the drain pan and draining the condensate therefrom. The drainage fixture includes an inlet channel associated with each trough and a baffle for preventing the condensate from blowing past the drainage fixture.

Description

Be used for the condensation water drainage configuration of evaporator unit

Technical field

The present invention relates to the evaporator unit that is used for air-conditioning system by and large, and relates in particular to the condensation water drainage configuration that is used for condensation water drainage disk.

Background technology

In many commercial air-conditionings, heating and ventilating system, the air that is conditioned distributes by air or regulon is discharged in the inner space.For example, the air-conditioning system that often is known as a GENERAL TYPE of branch system comprises indoor unit and outdoor unit separately.This outdoor unit comprises compressor, heat exchanger and blower fan (fan).This indoor unit comprises heat exchanger and blower fan and is known as evaporator unit.In operation, this indoor fan draws air in this evaporator unit by the import of evaporator unit, and forces air transmitting on the heat exchanger and making it then to come out from this evaporator unit by the outlet of opening in evaporimeter.

Outdoor fan is drawn into outdoor air in the outdoor unit and at these air of outdoor heat converter cocycle and make it out then to turn back in the surrounding environment.Simultaneously, compressor makes cryogenic fluid circulate by indoor/outdoor heat exchangers and circulates between indoor/outdoor heat exchangers.At indoor heat converter, cold-producing medium cools off air from the absorption of air heat of transmitting at this heat exchanger.Simultaneously, at outdoor heat converter, the air that transmits on heat exchanger absorbs heat from the cold-producing medium that transmits by heat exchanger.

Such split-type air conditioner unit is manufactured with cooling capacity scope widely usually.In making these unit, particularly along with these unit become bigger, it is heavy and thorny that the production of various parts and assembling become.Generally speaking, this unit is big more, and needed parts are just many more and to assemble the needed securing member of all parts just many more.Think need urgently to reduce produce and assembling process in the number of required parts and securing member.

The additional advantage that the room air that utilizes this air-conditioning unit to carry out is regulated is to remove unwanted moisture from air when air transmits through indoor heat converter.Along with moisture condenses on cold indoor heat exchanger coils, this dehumidifying causes the accumulation of waste water (waste).Therefore, need to collect the water that removed and it is transferred to suitable disposal point.

Usually, the indoor unit of branch system is installed on the room floor against the wall in room.Yet, in some cases, indoor unit need be placed the another location, such as on the ceiling in room.Should be appreciated that the arbitrary position that needs urgently to be installed in installation site, above-mentioned floor or the ceiling installation site still provides the indoor unit of collecting the performance of condensate water from indoor unit simultaneously.

At United States Patent (USP) the 6th, 321, shown in No. 556 and introduced a kind of indoor unit that is used for air-conditioning system, it can be used as floor, ceiling or Wall bracket (mount) and installs.Yet this unit shown in this patent comprises that two different condensate collection pans adapt to various installation possibilities.

Summary of the invention

A kind of evaporator unit that is used for air-conditioning system comprises the outer cover that defines air inlet and gas outlet, and this outer cover has rear board and front waist section.This outer cover limits the air flow path that passes this unit that extends to outlet from import.In outer cover and at this air flow path internal support evaporator coil.This unit comprises that evaporator fan is used to make air to flow and this evaporator coil of flowing through along air flow path, is cooled and from wherein removing water at this air, thereby causes condensing.

Provide single drain pan to collect condensate water, wherein this drain pan is by construction be oriented such that it still is that horizontal orientation all will be collected condensate water in this drain pan that this unit is in vertical orientation.This drain pan by nuclear (core) and shell in conjunction with forming, this nuclear is formed by polyurethane material, and this shell is formed by the ABC material and it is secured to this nuclear inside to form that part of to this drain pan of condensate water exposure.This nuclear and this shell may tighten together by adhesive, but preferably, these two elements integrally form in molding process.This shell has a pair of groove near its edge, and this is used to collect condensate water and the guiding current that condense from this dish to groove.A groove in these grooves is by construction and be arranged in and enable when this unit is in vertical orientation and another groove is set up and is construed as when being in horizontal orientation in this unit and enables.Drainage fixture is attached on the drain pan, so that be communicated with these concentrated flow bodies, makes that it always is in the height lower than these grooves when being in horizontal orientation or vertical orientation in this unit.This drainage fixture comprises the inlet channel of each groove that is used for these two grooves and is used to limit the baffle plate that is delivered to the current that condense in this drainage fixture.

This unit outer cover has diapire and rear wall, and respectively has opening in diapire and rear wall.Pipe is attached on the drainage fixture and optionally by an opening in these openings, so that provide the fluid of the position of outside from the drain pan to the outer cover to be communicated with.For only under the effect of gravity, not allowing to provide condensate pump from the installation of pipe draining.Also provide water leg and sensor responsively to enable this pump.

Description of drawings

Fig. 1 is the perspective view of the evaporator unit of vertical orientation according to an embodiment of the invention ground installation.

Fig. 2 is the exploded view of evaporator unit.

Fig. 3 is the front view of evaporator unit.

Fig. 4 is the sectional view of the evaporator unit that intercepted of the line 4-4 along Fig. 3.

Fig. 5 is the sectional view of the evaporator unit that intercepted of the line 5-5 along Fig. 3.

Fig. 6 is the enlarged drawing of the part of pointed Fig. 5.

Fig. 7 is the front view of the evaporator unit installed horizontally disposedly.

Fig. 8 is the sectional view of the evaporator unit that intercepted of the line 8-8 along Fig. 7.

Fig. 9 is the sectional view of the evaporator unit that intercepted along the line 9-9 of Fig. 7.

Figure 10 is its enlarged drawing of a part as shown in Figure 9.

Figure 11 is the perspective view of drain pan.

Figure 12 is the enlarged drawing of the drainage fixture part of drain pan.

Figure 13 is the exploded view of drain pan and its drainage fixture.

Figure 14 to Figure 17 is the various views of drainage fixture.

The specific embodiment

The present invention is applicable to evaporator unit 11, and this evaporator unit 11 is shown as vertical orientation ground installation on the whole in Fig. 1, and wherein its rear side 12 is against wall 13 installations and its bottom side 14 and floor 16 adjacent installations.Although as will introducing hereinafter, this unit also is designed to alternatively be installed in the position of level on the whole, wherein its rear side 12 leans against on the ceiling and its bottom side 14 leans against on the sidewall 13, but now will be under the situation of vertical orientation (as shown in the figure) be introduced.Therefore, except rear side 12 and bottom side 14, evaporator unit 11 has front side 17, top side 18, left side 19 and right side 20.

Be provided with front panel 36 on the front side 17 of evaporator unit 11, the back of plate 36 is evaporator compartment in front, and this evaporator compartment comprises evaporator coil.The below of plate 36 is cell structures 39 in front, is air inlets at the rear of cell structure 39, and this air inlet is communicated with the air blast fluid, and this air blast inwardly draws air and cool off air on evaporator coil by cell structure 39.Floss hole from top side 18 25 discharges cooled air then.

Referring to Fig. 2, evaporator unit is shown as all various parts that comprise that assembling is preceding in exploded view.Now will introduce the order and the mode of assembling.

Rear board 21 forms the main structural components of evaporator unit and the part of outer cover.By engaging the top edge of upper closure 22 on the top edge of plate 21 at first in the back and utilizing securing member 23 that these two parts are tightened together then and upper closure 22 is fastened on the rear board 21.Utilize securing member that left components inside 24 and right internal side assemblies 26 are attached on the rear board 21.Utilize securing member 28 that fan assembly 27 is fastened on the bottom of rear board 21 then.

In the assembling process next step is to place corresponding left components inside 24 and right internal side assemblies 26 by the end with evaporator coil 29 and evaporator coil 29 is installed in the outer cover.Then by at single screw rod of each end of evaporator coil 29 evaporator coil 29 being fastened to its installation site, this list screw rod passes this components inside and enters in the tube sheet of end of evaporator coil 29.Evaporator coil 29 is set in evaporator compartment like this, and this evaporator compartment is partly by rear board 21 and left components inside 24 and right internal side assemblies 26 qualifications.Yet, still need the end of closed this evaporator compartment to prevent that air from flowing by the end.This reaches by left closure member 31 and right closure member 32, left side closure member 31 and right closure member 32 just are placed on the appropriate location and do not use securing member and be clamped in the appropriate location by engaging with drain pan 33 then, and drain pan 33 further limits this evaporator compartment.Drain pan 33 is fastened on the appropriate location so that corresponding left components inside 24 and right internal side assemblies 26 are fastened on the drain pan 33 by the securing member at each end.Scupper hose 34 is attached on the drainage fixture of drain pan 33.Then front panel 36 is placed on the drain pan 33.Scupper hose 34 is attached on the drainage fixture of drain pan 33.Then front panel 36 is placed on the drain pan 33 and by securing member and be fastened to the appropriate location, thereby it is attached on blower fan plate face (fan deck) part of left components inside 24 and right internal side assemblies 26 and rear board 21.

Turn back to the sidepiece of this unit, by snap fit control cabinet 37 is installed in the left components inside 24 and with stepper motor 38 and also is fastened on the side assemblies 24.

Have air inlet in the air blast compartment, this air blast compartment is partly formed by the bottom and the fan assembly 27 of rear board 21.This air inlet parts ground is by grid 39 closures, and a plurality of filter elements 41 are placed in the grid 39.

Next step is to be connected to stepper motor 38 in horizontal wind deflector (louver) mechanism on the upper closure 22 and this horizontal wind deflector 42 is secured on left components inside 24 and the right internal side assemblies 26 and at its mid portion in its end and is secured on the closing assembly 22.Then left end cap 43 and right-hand member cap 44 are fastened to respectively on corresponding left components inside 24 and the right internal side assemblies 26 to finish assembling process.

The front view of the evaporator unit that the vertical orientation that is in it shown in Figure 3 is installed.Details at these internal parts shown in the sectional view of Fig. 4 to Fig. 6.

Be arranged in this unit under the situation of this vertical orientation position, this fan assembly 27 inwardly draws by grid 39 levels will cooled air and make it upward in the evaporator compartment 46, and it transmits to be cooled on evaporator coil 27 at this.Then, it upwards and outwards discharges by floss hole 25.Except the air that cooling is transmitted by evaporator coil 29, also can be by from air, removing some moisture and it being condensed and on the surface of evaporator coil 29 with this air dewetting.

As at Fig. 4 to Fig. 6 as seen, the lower end of evaporator coil 29 is intercepted and captured (capture) and is made in the lower end of drain pan 33 and tend to collect in the groove of the lower end of drain pan 33 or groove 47 in formed condensate water on the evaporator coil 29.Then condensate water is discharged to an end of groove 47,, as hereinafter introducing, drainage fixture 48 is installed at this.Condensate water discharges and finally is discharged to the position of building outside by delivery pipe 49, scupper hose 34 from drainage fixture 48.

Introduced as mentioned like that, with regard to the function of drain pan 33 and condensation water drainage system drain pan 33 and condensation water drainage system are introduced when installing against wall vertical orientation ground in this unit.Shown in Fig. 7 to 10, same unit is displayed on the ceiling in room with horizontally disposed installation.In this layout, rear side 12 against ceiling setting and the air that is conditioned essentially horizontally from floss hole 25 dischargings.As can be seen, drain pan 33 now is configured to the substantial horizontal orientation, and wherein its second groove 51 is in lower height and makes and to tend to collect and pass to drainage fixture 48 from the condensate water of evaporator coil 29 in second groove 51.Condensate water is tended to flow, flow out through delivery pipe 49 and from scupper hose 34 from drainage fixture 48 then.With leave during vertical orientation is installed differently from the rear side 12 of this unit, as shown in the figure, drainpipe 34 is by the bottom side 14 of this unit.From here, it generally will transmit downwards by wall and the final outside that arrives by pipe.

Now consider the details of drain pan 33 and its structure, the drainage fixture 48 that is associated in drain pan shown in Figure 11 and Figure 13 33 and it.Drain pan has bottom 52, preceding upstanding wall 53 and back upstanding wall 54 and

upstanding sidewall

56 and 57, and they are formed for the container of condensate water together, and condensate water will begin to collect from its formation on evaporator coil 29.As indicated above, its first groove 47 and second groove 51 form near its rear wall 54 and when being in shown in Fig. 7 to 11 when horizontally disposed, bottom 52 is slightly down towards groove 51 inclinations.In Fig. 8 and Fig. 9, show this being in tilted layout better.

As shown in figure 13, drain pan 33 is made up of two elements (shell 58 and liner 59).This shell 58 is made of the light polyurethane material, and this liner 59 is made of anti-water ABS material.The thickness of shell 59 relatively approaches and meets the shape of the upper surface of outer lining (outer liner) 58.Shell 58 and liner 59 may be individually formed and by adhesive etc. these two elements be tightened together then.Perhaps, they may be by forming integrally formed unit such as technology such as molded.

As in Figure 11 and Figure 13 as seen, near sidewall 57 and be provided with cavity 61 as the crow flies with first groove 47 and second groove 51, this cavity 61 is used to hold drainage fixture 48, this drainage fixture 48 may be fastened in the cavity 61 by adhesive etc.Drainage fixture 48 is shown the installation site that is in it and is shown in Figure 14 to Figure 17 and is in not installation site in Figure 12.

Drainage fixture 48 preferably is made of the light plastic material and comprises main body 62, and this main body 62 has rear wall 63,

sidewall

60 and 64, antetheca 65 and bottom 66, and all these form reservoir 67.Formation opening 68 and delivery pipe 49 are communicated with these opening 68 fluids in rear wall 63, to discharge condensate water as previously described like that.

A pair of bridge-

like structure

71 and 72 is directed in the reservoir 67, and this limits inlet channel 73 and 74 respectively at various height to bridge-like structure 71 and 72.(especially referring to Figure 14 and Figure 15).Passage 73 is aimed at first groove 47 and passage 74 is aimed at second groove 51.When this unit when being arranged vertically orientation, the current that condense are from flow through inlet channel 73 and flowing in the reservoir 67 of first groove 47.When this unit was horizontally disposed with, condensate water will be from flow through inlet channel 74 and flowing in the reservoir 67 of second groove 51.

Will be appreciated that along the flowing basically simultaneously of these grooves, should make prepare in case the moving fluid of fluid stopping through sidewall 64 jet flows (blowing) of reservoir 67.Therefore, what aim at inlet channel 73 is baffle plate 76 and what aim at inlet channel 74 is baffle plate 77, is used to break flow pattern and allows condensate water to flow and through opening 68 around baffle plate.

Claims

1. A/C evaporator unit has: outer cover, and described outer cover has air inlet and exhaust outlet; The air blast compartment; And the heat exchanger compartment, wherein having heat exchanger coil and when described unit is in the operation, be easy to form condensate water thereon, described A/C evaporator unit comprises:

Condensate drain pan, described condensate drain pan is arranged in the described heat exchanger compartment and in an edge near described condensate drain pan has at least one groove, described at least one groove is located immediately at the below of the part of described heat exchanger coil, makes condensate water to drop in described at least one groove from described heat exchanger coil under the effect of gravity; And

Drainage fixture in described condensate drain pan, be used for discharging the condensate water of collecting at described dish, described drainage fixture comprises cavity and inlet channel, and described cavity vertically extends below described at least one groove, and described inlet channel makes described at least one groove and described cavity fluid interconnection.

2. A/C evaporator according to claim 1 unit, it is characterized in that, described evaporator unit be can horizontal orientation or vertical orientation ground evaporator unit and the described condensate drain pan installed comprise two grooves, one of them groove described unit be in be positioned at when horizontally disposed described evaporator coil below, and another groove described unit be in be positioned at when being arranged vertically described evaporator coil below, and described drainage fixture comprises two inlet channels, and wherein each inlet channel is communicated with a concentrated flow body in the described respective grooves.

3. A/C evaporator according to claim 2 unit is characterized in that described groove is configured to parallel to each other.

4. A/C evaporator according to claim 1 unit, it is characterized in that, described drainage fixture comprises at least one baffle plate, and size and the position of described at least one baffle plate in the mobile stream of the condensate water that flows from described condensate drain pan is arranged so that and can prevents that described condensate water is through described drainage fixture jet flow.

5. A/C evaporator according to claim 2 unit is characterized in that, described drainage fixture has the baffle plate that is associated with each groove in the described groove, is used to prevent that described condensate water stream is through described drainage fixture jet flow.

6. A/C evaporator according to claim 1 unit is characterized in that, described drainage fixture comprises the delivery pipe that is used for discharging from described drainage fixture condensate water.

7. evaporator unit that is used for regulating at certain space air comprises: outer cover, and described outer cover has air inlet and gas outlet; Heat exchanger, described heat exchanger has coil pipe, described coil pipe be used for by the colder relatively cold-producing medium of described coil pipe circulation and at the relatively warm air of described coil pipe cocycle to cool off described air, in the process of described circulation, on described coil pipe, form condensate water; Blower fan, described blower fan are used to make air to flow from described space through described heat exchanger and from the outflow of described gas outlet; And condensation water drainage disk, described condensation water drainage disk is arranged on the below of described coil pipe, is used to collect the condensate water that is formed on the described coil pipe; Wherein, the improvement of described evaporator unit comprises:

At least one groove, described at least one groove are formed in the described condensation water drainage disk and are positioned at the below of the part of described coil pipe;

Drainage fixture, described drainage fixture are positioned at an end of described drain pan and have the condensate water delivery pipe that is used to hold the cavity of the described current that condense and is used for discharging from described drainage fixture condensate water; And

At least one inlet channel, described at least one inlet channel are used to be provided at described at least one groove and are communicated with fluid between the described cavity.

8. evaporator unit according to claim 7, it is characterized in that, described unit is suitable for installing with horizontal orientation or vertical orientation, and in addition, described condensation water drainage disk comprises a pair of groove, one of them groove is by construction and be arranged so that when described unit is in vertical orientation below described heat exchanger, and another groove is by construction be arranged so that when described unit and be in when horizontally disposed below described heat exchanger.

9. evaporator unit according to claim 8 is characterized in that, described drainage fixture comprises two inlet channels, and wherein groove all being provided in the described groove of each inlet channel is communicated with fluid between the described cavity.

10. evaporator unit according to claim 7, it is characterized in that, described drainage fixture comprises at least one baffle plate, and size in the mobile stream of the described condensate water of described at least one baffle plate in flowing to described drainage fixture and position are arranged so that described baffle plate prevents that described condensate water from spraying from described cavity.

11. evaporator unit according to claim 9, it is characterized in that, described drainage fixture comprises a pair of baffle plate, and baffle plate is associated with each inlet channel in described two inlet channels and size and the position of each baffle plate in described cavity is arranged to prevent that described condensate water stream is through described cavity jet flow.

12. A/C evaporator unit, have outer cover, air blast compartment and heat exchanger compartment, described heat exchanger compartment has heat exchanger coil, is easy to form condensate water when described unit is in operation on described heat exchanger coil, and described A/C evaporator unit comprises:

Condensate drain pan, described condensate drain pan are arranged in the described heat exchanger compartment and are positioned such that in described heat exchanger evaporimeter the condensate water that is formed on the described coil pipe will be collected in the described condensate drain pan;

Be installed in the condensation water drainage utensil in the side of described condensate drain pan, described drainage fixture comprises:

Chamber, described chamber has antetheca, rear wall and sidewall, is used to comprise the condensate water of certain volume;

The condensate water delivery pipe, described condensate water delivery pipe and described chamber in fluid communication are used for therefrom discharging condensate water; And

At least one condensate water inlet channel, described at least one condensate water inlet channel forms in the sidewall of described chamber, is used to guide described condensate water flowing from described condensate drain pan to described chamber.

13. A/C evaporator according to claim 12 unit, it is characterized in that, but described evaporator unit is evaporator unit and the described condensate drain pan that horizontal orientation or vertical orientation ground are installed comprises two grooves, one of them groove described unit be in be positioned at when horizontally disposed described evaporator coil below, and another described unit be in be positioned at when being arranged vertically described evaporator coil below and described drainage fixture comprise two inlet channels, wherein each inlet channel all is communicated with a concentrated flow body in the described respective grooves.

14. A/C evaporator according to claim 13 unit is characterized in that described groove is configured to parallel to each other.

15. A/C evaporator according to claim 12 unit, it is characterized in that, described drainage fixture comprises at least one baffle plate, and size and the position of described at least one baffle plate in the described condensate water that flows from described condensate drain pan flows stream is arranged to prevent that described condensate water from spraying from described drainage fixture.

16. A/C evaporator according to claim 13 unit is characterized in that, described drainage fixture has the baffle plate that is associated with each groove in the described groove, is used to prevent that described condensate water from spraying from described drainage fixture.

17. A/C evaporator according to claim 12 unit is characterized in that, described drainage fixture comprises the delivery pipe that is used for discharging from described drainage fixture condensate water.