US1979941A - Air conditioning and dispensing system - Google Patents

Description

Nov. 6, 1934. l. H. JEWELL AIR CONDITIONING AND DISPENSING SYSTEM 3 Sheets-Sheet l w QM 1 \Q Filed Aug. 19, 1932 J72 06/1 3077 Hzjeye Z 6 211.5!1321551,1112 vii 3 Sheets-Sheet 2 fi i l jive/i707? ra H JEWELL AIR CONDITIONING AND DISPENSING SYSTEM Filed Aug 19, 1952 Nov. '6, 1934.

NOV, 6, 1934. JEWELL,

AIR CONDITIONING AND DISPENSING SYSTEM :5 sheets sheet 5 Filed Aug. 19. 1932 Patented Nov. 6, 1934 UNITED STATESfPA-TENT orrlca Ira H. Jewell, Evanston, 111..

Application August 19, 1932, Serial No. 629,506

Claims.

' My invention is concerned with a novel system of circulating a cooling liquid, ordinarily water, through a building, and combining therewith dis.- pensing apparatus for furnishing cool drinking 5 water to any desired rooms thereof, together with air-conditioning apparatus likewise utilizing the cooling efiect of the circulating liquid,' which airconditioning apparatus may also be placed in any desired rooms. Y To illustrate my invention, I annex hereto three sheets of drawings in which the same reference characters are used to designate identical parts in.

Fig. 6 is a view in section on the line 6-4? of Fig. 5;

Fig. '7 is a side elevation of the form shown in Figs. 5 and 6, on a smaller scale; and

Fig. 8 is a detail on the same line as Fig. 6, bu on a larger scale. a

39 lncarrying out my invention, where it is to be used to furnish cold drinking water for all the year-round use, and air-conditioning, i.- e., cooling, for summer use, I may utilize the layout shown in Fig. 1. In this instance, a suitable water-cooling system is located in the basement, such, for instance, as the condenser coils 10 having co-operating therewith the motor 11 for driving the compressor 12 by which the carbon dioxide customarily employed is condensed. This condenser will be connectedin the customary manner with the double-pipe water-cooler 13 with which I associate the two preferably motor-driven pumps 14 and 15, suitably connected to the cold-water supply line 16 so that one or both may be employed to circulate the water through the system. A receiver' l? for the liquid carbon dioxide is connected by the pipe 18 with the expansion pipes 19 surrounding the water-cooling pipes 13. The pipe 16 is connected to the header pipes 20, to which are connected as many risers 21 as may be desired tor the particular building in which it is installed,

' these risers being located in the various support-' ing columns. At their upper ends, these risers 21 are connected to the header pipe 22, which is connected toward one end by the connection 23 to the which connects the pipe 30 with the fill-in pump 26, andalso connects the pipe 31 with the pumps 14 and .15. The fill-in pump 26 is connected by the pipe 32 with the water-supply reservoir 33, and ordinarily, the pump or pumps 14 and 15- operate to circulate the water through the system without the balance tank or the fill-in pump being afiected. However, when the water supply becomes reduced, the float switch control 25 in the balance tank 24 closes the circuit through the motor 27, and the pump 26 is brought into operation to pump water from the reservoir 33 through the return pipe 28 into the system until the level in the balance tankis brought back to where the float switch control opens the circuit through the motor 27. With the system thus far described, it will be understoodthat a constant supply of cold water is kept circulating through the risers 21.

In Fig. 1, I have illustrated diagrammatically how the cold-water dispensing devices 34 are connectedto one of the risers 21. The riser 21 has connected thereto the piping 35 leading to the dispenser 34, and the piping 36 leading from the dispenser back to the riser 21. A shut-ofi cock 3'7 is placed in the riser 21 between the pipes 35 and 36 so that as much of the water as may be necessary for the operation of the dispenser 34 may be passed through the pipes 35 and 36, so that there is a constant circulation through the dispenser 34. I have not herein illustrated .the details of said dispenser, as they are shown in my companion application No. 628,804, filed August 15, 1932. It is sufficient for the present to state that the cold water flowing constantly through the-pipes 35 and 36 flows through a pipe passing through a transparent reservoir containing the water, which reservoir is provided with the necessary cock so that water from thereservoir may be drawn off as needed, and will be immediately replaced by water from the pipes 35 and 36.

In the right-hand riser 21, I have shown the same connecting pipe 35 to the water dispenser 34, but instead of the pipe 36, I employ the pipe 36, which is the outlet pipe for the air conditioner 38, the inlet pipe for which is the pipe 39, which in this arrangement is the outlet pipe for the dispenser 34 and is provided with the shut-off valve 40 for the branch-pipe 41 connecting the pipes 36 and 39 so that, when desired, the course of the water will be through the pipe 35, the

not to be operated, the three-way cock 40 is set so that the water flows from the riser through the pipe 35, through the dispenser 34, .through.

the pipe 39 to the valve 40, thence through the pipe 41 into the pipe 36* and back to the riser 21.

The central riser 21 is shown as having the air conditioner 38 connected thereto by the pipes and 36', which correspond in all details-to the pipes 35 and 36 by which the dispenser alone is connected to the risers, and it will be understood that this arrangement is used in such airconditioned rooms as are not provided with the dispensers.

Referring now to Figs. 2 and 3, the riser 21 and the pipes 35 and 36 are indicated by the' broken lines to the point where they enterthe casing 42 of the air conditioner, which casing will be suspended from the wall of the room in any desired manner. This casing will preferably consist of the rectangular central portion 43 provided with the door 44 at its front, which may be opened to give access to the water meter 45 in the casing, and to the cocks hereinafter described. The bottom of this section 43 of the casing is formed by the casting 46, which will be seen to have its upper portion .in thegeneral' shape of an annulus, and which has the bottom portion 47 of the casing suspended from its rectangular bottom? portion. This bottom portion 47 is provided with the air inlet apertures 48, and is shaped to receive the electric motor 49 which is supported therein by being bolted to the L-shaped bracket 50, which in turn is bolted to the casting 46. The armature shaft 51 of the motor is supported at its lower end upon the ball bearing 52, indicated in dotted lines, and its upper end has secured thereon the fan blower 5a, which draws air in through the apertures 49 and forces it up through the section 43 of the casing,-through which it must rise until it strikes the rectangular deflecting plate 56 secured in the portion 43 of thecasing so that the air rising will be thrown upwardlyand forwardly to bring it to the front of the section 57 of the casing. This section 57 is circular in its general outline, and the front plate or door 58 is annular" and has the cylinder 59' extending horizontally from the center thereof toward the rear wall of the casing, which rear wall it does not quite meet. The cylinder 59 is not secured to the door 58, but is supported from the casing in the manner hereinafter described. The annular opening in the door will preferably be closed by the ornamental screen 60.

The pipe 35 enters the casing horizontally, as

shown, above the blower, and is connected to the. water meter 45 by suitable piping controlled byv the shut-off cock 61. A pipe 62 leads from the meter, slanting upward through the deflecting plate 56, and is connected to the coil 63 which constitutes a spiral about the cylinder 59 and is connected to the coil 64 constituting a corresponding spiral, whichat its outer end is connected to the coil 65 constituting another spiral which atits inner end is connected to the final spiral coil 66 which terminates in the shut-off cock 67, which in turn is connected by the short transverse pipe 68 with the pipe 36'. Asecond deflecting plate 69, extending from the rear of the casing nearly to the front, serves as a partition between of the cold water circulating through the coils the sections 49 and 5': of the casing, and compels the air being driven upward by the blower to pass upward in front of the coil 66 and then be deprovided throughout their lengths with the copper fins 70 which assist materially in the eflect in lowering the temperature of the air passed through the conditioner. A small pipe 71 connected to the lower end of the deflecting plate 69 serves to carry the water that is condensed by the coils from the air down to the annular trough 54 formed by the shape of the casing 46, and from this trough I lead the pipe 72, indicated diagrammatically in Fig. 3, to the drain pipe 73, which is indicated by the broken lines in Fig. 1. Where the water dispensers 34 are used in ahotel building, they will be located so that the waste water is discharged into the wash basin, but where they are used in an ofllce building and not connected with a wash basin, they will be provided with similar connections to the drain pipe 73, as indicated by dotted lines.

' While the moisture condensed in the coils will ordinarily in the summer catch any impurities in the air passed thereover, I preferably insure its cleanliness by straining the air before it passes over the coils. To this end, I secure the ring 84, preferably angular in cross section, to the inside of the circular portion of the casing near its outer face, and in the same vertical plane I secure a' similar ring 85 to the outer surface of the cylinder 59, and I connect these rings by the staggered, radially-extending rods 83, but shown in Fig. 4, which thus serve as a support for the hollow cylinder 59. Their main function, however, isto serve as a support for the screen cloth 86, which is carried around the rods 83, in the manner shown in Fig. 4, to furnish a greater screening surface for the air than would otherwise be available.

While, in hot weather, some of the moisture in the air will be deposited on the coils due to the condensing eifect of the cold water circulating therethrough, under other conditions, I may desire to increase the moisture content ofthe con- 4 ditioned air, and for this purpose I provide a 1102- zle 74 in the pipe 68, which is controlled by a hand valve 75, so that the amount of the discharge of the water sprayed into the air for moistening it may be controlled or shut oif entirely.

It will be understood that where the air condi- 13c tioner is used in connection with the water dispensers it can be combined with the water dispensers only for the purpose of cooling the air. Where the air condensers are used in a separate system without the water dispensing device, as I also contemplate, it can be used also for warming the air, in which case a water heating coil 76 will be' placed in the basement and connected to the supply tank 33 by pipes containing the cooks 77 and 78, so that when the water cooling means'is In Figs. 5 to 8, I have illustrated a somewhat simplified preferredform, in which the casing 88 has the same general shape as the other (383-. ing', but is provided with a single door 89 covering substantially the entire front, which is hinged at 90.' This casing has the apertures 91, best seen in Fig. '7, all around the front edge of thecasing.. a

The water enters through the pipe 35*, asbefore, and enters the'meter through the pipe 35 controlled by the valve 61, and leaves it through the pipe 62, which terminates in the spiral coil 63, which is continued in thespiral coil 64. which terminates in-the spiral coil 65, these coils being in the annular space formed between the circular portion of' the casing and the sheet-metal annulus 92 located concentrically in the top of the casing and supported by a plurality of brackets 93 from the rear Wall of the casing. The coil is provided with the shut-oil cock 6'? controlling its'discharge into the pipe 36 The door 89 has secured thereto the short sheet-metal annulus 94, which, when the door is closed, overlaps at its inner end the ofiset portion 95 of the ring or annulus 92, Secured on the inner forward edge of this annulus 94 is the.

ring of felt 96, and resting on this ring of felt, but secured to the door, is the ring 9''! of ply board, and to this ring 9'7 is secured the metal ring 98, angular in cross section, which serves as a support by means of the rods 99 connected thereto for the base piece 100, on which is supported an electric motor 101, which has the fan 102 secured on the outer, end of its armature shaft. In front of the fan, there is the circular opening 103 in the door, which is preferably provided with the metal screen ice as a guard for the fan blades. The operation of the fan will be readily apparent, as the air is sucked in through the apertures 91 and drawn over the coils 63, 64 and 65, and into the rear of the sheetmetal, hollow cylinder 92 and forced out through the opening 103 into the room, after havingits temperature lowered by passing over the coils through which the cold water is circulating.

To strain the air, I provide the screen cloth 105, which is similar to the screen cloth 86, and

like it is placed around the staggered wires or rods 'rear of the motor, 101, but is not secured thereto.

Where it is desired to moisten the air,-I pro-' vide the small pipe 109 connected to the pipe 62 by the cock 110, and this pipe leads up through the rear of the casing to a small tank 111 secured in the top of the front of the casing and having the automatic float valve 112 therein, which keeps a supply of water in the tank in the customary manner, which water isdischarged through the pipe 113 extending from the bottom thereof and to the rear of the ring 107, where it terminates in the curved pipe 114, which has perforations therein adjacent the screen 105 to. discharge sprays of water thereon.

a novel air-conditioning unit, I do not herein claim the same, but reserve the subject-matter thereof for divisional applications.

While I have shown and described my invention as embodied in the form which I at present 1 consider best adapted to carry out its purposes, it will be. understood that it is capable of modifications, and that I do not desire to be limited in the interpretation of the following claims ex -v cept as may be necessitated by the state of the cold liquid from the circuit in different rooms connected to said closed circuit through which the liquid constantly circulates, and a pluralityof airconditioning devices connected to said closed circuit and located in difierent rooms, the temperature-controlling factor of which is furnished by the cold liquid circulating through the closed circuit containing the liquid delivery devices.

2. In a system for delivering drinking liquids to,

and air-conditioning rooms of, a building, the

combination with a closed circuit for liquids containing liquid-cooling. apparatus and circulating means therein so that cold liquid is constantly circulating through the system, of a plurality of liquid delivery devices therein for dispensing the cold liquid from the circuit in difierent rooms connected to said closed circuit through which the liquid constantly circulates, a plurality of airconditioning devices connected to said closed circuit and located in difierent rooms, the tempera"- ture-controlling factor of which is furnished by the cold liquid circulating through the closed circuit containing the liquid delivery devices, and valves in the circuit which can be closedto cut out the air-conditioning devices while leaving the liquid delivery devices in operation.

3.- In a system for delivering drinking liquids to, and air-conditioning rooms of, a building, the combination with a closed circuit for liquids containing liquid-cooling apparatus and circulating means therein so that cold liquid is constantly circulating through the system, of a plurality of liquid delivery devices therein for dispensing the cold liquid from the circuit in difierent rooms connected to said closed circuit through which the liquid constantly circulates, a plurality of coils in different rooms connected to said closed circuit through which the cold liquid constantly circulates, a casing for each of said coils, .and means for each of said coils for positively forcing a current of air through the casing and about the coils and then into theroom.

4. In a system for delivering drinking liquids to, and air conditioning the rooms of, a building, the combination with a closed circuit for liquids containing liquid cooling apparatus and circulate ing means therein so that cold liquid is constantly circulating throughthe system, of a plurality of liquid delivery devices in the circuit for dispensing the cold liquid therefrom in different rooms connected to said closed circuit through which the liquid constantly circulates, a plu-- rality of coils in difierent rooms connected to said closed circuit through which the. cold; liquid constantly circulates, a casing for each of said coils, and an electric fan for each of said coils for positively forcing a current of air through the casing and about the coils and then into the room. 5. In a system for delivering drinking liquids I to, and air conditioning the rooms of, a building,

the combination with a closed circuit for liquids containing liquid cooling apparatus and circulating means therein so that cold liquid is constantly circulating through the system, of a plurality of liquid delivery devices in the circuit-for dispensing the cold liquid therefrom in difierent rooms connected to said closed circuit through of water circulating therethrough.

IRA H. JEWELL.

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