US1577428A - Pumping, filtering, and heating system for oil-burning plants - Google Patents

Description

March 1e 1926. 1,577,428

E. l. STAPLES PUMPING, FILTERING, AND HEATING SYSTEM FOR OIL BURQING PLANTS R; Filed May 5. 1923 a sheets-sheet 1 iarle 1:3? es INVEN O f iwaymq ATTRNEYo March 16 1926. 1,577,428

E. I. STAPLES PUMPING, FILTERING, AND HEATING SYSTEM F'OR OIL BURNING PLANTS Filed May 5 l923 3 Sheets-Sheet 2 ZZu'Ze aza leo INVE Ton.

. 1/ WITNESS: I)" ATTORNEY March 16 1926. 1,577,428

- E. I. STAPLES PUMPING, FILTERING, AND HEATING SYSTEM FOR 01L BURNING PLANTS O k 0;) Filed May 5. 1923 3 Sheets-Sheet 5 E h k 5% N l\ a Y N I L O o o o o o o 0 C 0 O 6 0 0 2 3 'R l a o Q m -m v v Q g g 0 L0 v ZZWJ ZJZ Z INVENTOR- Q g B mfim wrruzss; 66m g5 ATTORNE Patented Mar. 16, 1926.

untransrsfrns earner EARLE I; STAPLES; OF NEW, YGEK, N.

PUMPING, FILTER-ENG, AND HEATIIIG SYSTEM? FOR OIL=IEURNING:. BLANTS'.

and Heating Systems for Oil-Burning Plants, of which the following is a specification.

This invention relates to pumping, filterand heating systemsv for oil burning plants and has for its primary object the provision of mechanism of this character including a plurality of pump units arranged co-acting oil heaters and connected thermvith whereby either one or both of said pump. units can be used as desired.

Another object ot the invention is to provide a system oi this character wherein the pump units and coacting oil heaters are an ranged together in a compact manner and adapted to be supported from a floor or similar foundation and thereby reduce the having an, oil heating coiliorincdof a,

single copper coil whose. ends, are, brought tor spective external stufling boxes upon a re-v movable head; of sa d drum, render ng said ends steam tight and providing a structure,

within the drum whiclris tree oii connections which would tend to cause leakage or other trouble inv the heating system. Another object of the invention; is. to, pro-. vide a system of this character consisting of a plurality of pump units and correspond- 50 ing plurality of oilheatingunits, the latter including companion drums connected with. the respective pumps and adapted to be. singly or collectivelyv operated therewith and designed and connected with said pump units so that should it be desired to remove side by side and superposed with respect to gether in close relation and connected to. 1;e.-..

t ains; c t035- one the d ums for he pu n s repa s, thls may be done quickly. and without inter;

r nc' tha u s tul; opera io of. he

other drum and its, matingpluup unit F gure. 1; 1s. a side. elevation oi my im- PE WQd pumping, filt r ng, s r ining heating mechanism.

Figure 2 is a front view thereof,

Figure 3. is a rear View oi same.

Figure 4 is a plan view of. my improved duplex strainer.

Figure 5 is a section taken on the. line 5=5. of Figure 4;,

Figure 6 is a section taken approximately on line. 6.6 of Figure 4.

Figure 7 is. a section on line 7*? of Figure 6.

Figure 8 is a section on line ure 6.

Figure 9 is a fragmentary sectional View taken through. one of the. movable heads of one of the drums and showing the structure of the steam tight coupling joint be. tween the. head and the stub end of 01. of the coils. Figure. 10 is a fragmentary view of one of the headsshowing portionjof the coupling device referred to in Figure, 9,.

I car y ng the n e tion o p c i e, I employ a pair ofoil heaters 19, 10, each consisting of a drum having afi xed head 1l and removable head 12. The active oil heating means. which I include in the. heat-.. crs will be. reterred' to, in. detail hereinafter. These. drums, are mounted side by side in close relation to each other and same. are associated with a frame 13. which includes lower saddle members is, 14- and superposed mating saddle members 15, The lower saddle members 1 4, 14 are rigidly connected together bystay-rods 16. These frame. men}; bers are cast so as to allow the drums to, be partly embraced therebyv and. held in a rigid condition, A frame constructed. in this manner constitutes 'a strong and durable foundation tor. the heaters as. well as, for the pump mechanism which I will describe pres.- e'ntly. The lower members is, let are pro: vided with removable Wedge blocks 17 sec cured to, the said members bolts 18, In this manner, it follows. that either of the drums can be quickly and conveniently removed without disturbing the originaland PPmxima sly see 0i;

intended normal. condition of the mating rum- The r a advan age, o his arra ge t will better unde s od. after r fe ence is had to my twin pumping mechanism which I employ herein as part of my invention.

Mounted upon the frame members 15, is a pan 18 and supported thereupon are pumps 19, 19 arranged side by side in vertical alignment with the respective heaters 10 so as to give uniform balance to the entire equipment as will be appreciated. These pumps are connected togetherby a by-pass 20 having valved connections 21. This by-pass leads from a pipe 22, and the latter is connected with a suction filter 23. Oil may be fed to this filter in the customary manner and taken into the pumps through the valved connections 21 of the by pass 20. These connections can be con trolled manually so that either one of the pumps can be cut off from or arranged in operative communication with the oil supply source as desired. The valves 21 serve to permit both of said pumps to be cut-oil from the oil supply source when it is desired to place the mechanism at rest.

The pumps are associated with an air chamber 24, and, as shown in Figure 3, this chamber is provided with a pipe 25 having valved branches 26, 26 for operative connection with the oil discharge pipes 27 27 of said pumps. From this construction, it will be observed that on closing a particular one of said valves 26, the pump leading thereto may be cut-oil from the aforesaid pipe 25.

In each of the drums 10 is a horizontally disposed coil 28 having a straight branch 29 which extends through the windings of the coil and a stub branch 30, the latter constituting an oil intake to the coil, and the former a hot oil outlet. The intake stub branches are operatively connected with a bypass 31 having valved ends 32. This bypass joins with an oil supply pipe 33 which leads from supply pipe 25. In this manner, it will be seen that either one or both of the heating coils 28 can be instantly connected in or disconnected from the supply pipe as desired.

The stubs 29 of the outlet branches are operatively connected with a bypass 34 having valved ends 35. This by-pass leads to a filter 36 which will be specifically referred to hereinafter.

Extending into each of the drums 10 from the head thereof is a long nozzle 37 having valved branches 38 connected with a by-pass 39. This by-pass 39 leads to a pipe 40 which, in turn, is connected with a steam supply pipe 41 which extends from a bypass 42. The ends of this last named by-pass 42 are provided with valves 43. The pipe 41 is connected with one of these valves 43 and the other of said valves 43 is connected with a pipe 44 which is coupled to a vertical pipe 45, the latter opening to the central portion of a bypass 46. The by-pass 46 has valved ends 47 leading to the pumps 19. The vertical pipe is connected with an automatic governor 48, and the latter is joined to a valved air supply pipe 49 leading from the air tank 24. governor and mounted in the vertical pipe 45 are steam valves 50, 50. This governor may be of any suitable well-known construction which is adapted to control the speed and pressure of the pump 19. It is preferably of the type shown and described in my co-pending application executed on the 31st day of May, 1923 and filed in the United States Patent Olfice June 29th, 1923, Serial No. 648,619. Steam from a supply connection 45 is led to the controlling valve 45 in aforesaid by-pass 42.

The by-pass 34 is provided with the filter 86 as previously set forth and which comprises a body 51 having a tapered rotary plug valve 52 mounted in a seat 53 between the ends of the valve and having its lower restricted end 54 mounted to revolve in a central depression 55 of the body 51. This plug valve is hollow and same is divided by a partition 56 to form an upper chamber 57 and lower chamber 58. Leading to the upper chamber 57 and formed in the walls of the valve plug are ports 59 and 60. The walls of the chamber 50 of the plug are formed to provide ports 61 and 62 and 63 and 64 and as shown, the said ports 63 and 64 are separated from the ports 61 and 62 by a central partition 65.

The said body 51 is provided with straining chambers 66 and 67 and suspended from a wall 68 and from above said wall respectively of each chamber are foraminated cylinders or screens 69 and 7 0. These chambers are disposed in parallel spaced relation to each other and the outer cylinder 70 is spaced from the vertical walls of its respective straining chamber. The said outer cylinder 70 is somewhat shorter than the mating cylinder 69 and same is provided with a flange 71 which rests upon said wall 68. The inner cylinder 69 extends into a space 72 formed in the respective straining chamber and same is closed by a cap 73 which is strapped to the flange 71 by a bail 74. This bail extends over a vertical lug 75 on said cap and associated with said lug is a spring 76. Each space 72 of the respective straining chamber is provided with a threaded cap 77 and bearing against said cap is the upper end of said spring 76. The base of the inner cylinder 69 is provided with a flared member 76 which is held in sealed contact with a correspondingly flared member 76 on the lower end of the cylinder 70 by means of said spring 76. By this means, it will be seen that the two cylinders are securely joined together at their lower ends and that the cylinders are firmly held in a relatively rigid condition Above and below the mar nas.

spaced apart and against chattering When the strainer is in operation. The cap 77 has a diameter in excess of that of the cyl inder so that the latter and its mating cylinder can be removed when it isv desired to clean these parts. vided withan annular depression 7 9 which receives a packing and the fiange 81 of the respective cap 77. Each of said caps 77 is provided with a small bleed opening 82 so that steam under pressure in the straining chambers can be gradually made to escape from the straining chambers when a particular set of straining cylinders 69 and 70 is removed. By this means, the operator is insured against injury by the action of escaping oil under heavy pressure when removing the aforesaid cylinders.

The body 51 is provided with an oil inlet passage 83 and an outlet passage Set. The inlet passage 83 leads to the upper chamber 57 of the rotary valve 52 and the outlet passage 8 1 leads to the part of the valve below the partition 50 as shown in Figure 5. hen the valve is adjusted to one position the ports 59 and 60 connect the inlet passage 83 with the straining chamber atthe left in Figure 8, and the oil as it leaves its heater is conducted to the straining cylinder 69 and 70 of said chamber. ing, the oil passes into the space at the top of said chamber below the cap 76 and flows dot-Inward through the cylinders 69 and 70 andthen through a by-pass 841 and to the ports 61 and 62 and then to the outlet 8 1 where it is conducted to the burners, (not shown). The same operation is true of the filtering chamber to theright when the valve plug is adjusted to its second position. In this manner, it being understood that the inlet passage 83 is connected with the by-pass 3 1, it follows that oil may be passed in a continuous manner to the filter and that the cylinders 69 and 70 of a respective filtering chamber can be removed and cleaned without causing any interruption to the filtering process as the hot oil is pumped from the heaters.

The pump valve 52 is provided with a stem 85 having portions 86 and 87 of graduated diameters. These portions are journaled to rotate in a removable cap 88 carried by the body 51. A spring 89 between the plug and the shoulder 90 of said cap. serves to yieldingly hold the plug in its seat. The cap 88 carries a suitable stutling gland :91. The cap is provided with an annular flange 92 which coacts with a groove 93 in the valve body, and between this flange and the walls of the groove is a packing gasket 94:. The gland 91 includes a metallic Washer 91 which bears against the shoulder 91 at the juncture of the portions 86 and 87. Should the spring 88 break while the structure is The body 51 is pro- In so do in use it will be observedthat motion in an upward direction 01 the plug is prevented and that no leakage occurs as a result of such breakage.

The plug carries a fixed handle 95 having a lug 96 adapted to co-act with stops 97 and 98 on the valve body. These stops are related to the filtering chambers so that when the valve is adjust-ed to one position, one chamber is cut of? from the oil supply source and the other connected directly therein. Each filtering chamber has moulded or otherwise formed thereon the word Off and the handle has formed thereon in a similar manner, the word On. The width of the handle of the valve is such that the word Oil of one filtering chamber is always covered by the handle and the word On of the handle exposed shown in Figure l. This enables the operator to quickly understand which of the filtering chambers is in active service.

The stub ends of each heating coil are. welded at 99 in the reduced sockets 99 of coupling devices 100. These devices are each formed with a squared head 101 fitting in a corr spondingly formed collar 101 on the removable head of the oil heating drum. The head 101 is provided with a reduced cylindrical end. 102 fitting in a passage 102 in the drum head and extending from this end 102 is a threaded nipple 10?; which joins its pipe connection. In other words one oi these devices connects the intake end of the oilheating coil with the pipe 33 and the other of said devices connects. the outlet of the coil with the strainer 36. The nipple 108 is provided with a clamping nut 10lwhich co-acts with a gland to clamp the head 101 in the collar 101 In this manner, it will be observed that steam tight joints are formed between the coil stubsand the. head of the mating drum and that the coil is secured against accidental derangement due to the action of expansion and contraction.

Each of the straining chambers and GT is provided with a drain cock 106. Tie outlet 01 the chamber is disposed above the base of the latter so that each chamber constitutes a sediment trap at a point below said outlet.

Each of the heating drums 10. provided with a valved drain connection 107.

Having described the invention in detail its operation is set forth follows It is assumed that both pumps 19 are operating; that the valves in the steam connections from the pumps are open. so as to ad niit steam to said drums at points within the windings of the oil heating coils 28 and that oil is being introduced to the coils to be subjected to the action of the steam. In this manner a continuous flow of oil is conducted through the coils of the aforesaid heaters and as the hot oil emerges from said heaters 1t 1s taken into the strainer mechanism 36 and finally led therefrom, to the burners of a heating plant. As stated. elsewhere herein either of the chambers 66 or (37 can be used in conjunction with the pumps singly or collectively. As the oil enters the intake passage 83 of the strainer mechanism 36 it is lay-passed by way of the ports 59 and (50 to the respective filtering chamber. It is then conducted in a downard direction through the strainer cylinders 6t) and a" d then taken off from the chamber through the lower ported structuriz of the rotary valve As the oil takes th s course it is subjected to an extremely cl'ir tive filtering process and all sand and se ment is held against passing to the burn By providing the cylinders 69 and 70 i the joints 76 and 76" at their lower on: s, the cylinders constitute trap for sediment and at a requisite time both cylinders can be conveniently removed and subjected to a cleaning process. As stated, the base of each filtering chamber also constitutes a sediment trap and through the characterizing features of the filtering mechanism these chambers can be placed under individual control wienever it is desired to relieve same of their accumulated sediment.

The pipe 40 has a steam pipe 108 leading therefrom and connected by a valve 109 to the suction filter 23 from which oil is fed to the pumps. This suction filter 23 is provided with a drain valve 110. By means of this arrangement it will be observed that steam from the pipe l0 can be made to enter the said filter to render the same self cleaning.

The filter 36 is so constructed that the combined area of the cylinders (39 and 70 thereof is approximately ten times greater than the area of the intake opening of the filter 36 so as to give ample straining surface and to operatively permit an unrestricted flow of heated oil from the system. In operation of this strainer, oil enters the top of each chamber and part of the oil flows down into the space between the respective cylinders 69 and 70 thence through the perforations in the cylinder 70 directly to the outlet of the strainer, while other oil passes through the upper extended end of the cylinder 69 thence in a downward direction thcrethrough until it reaches the base of the filtering chamber. It then passes up to the outlet of the strainer as shown by the arrows. This provides for free circulation of the oil and causes any heavy sediment to respectively lodge in the space between the cylinders 69 and 70 and upon the bottom of the filtering chamber.

What is claimed as new is:

1. An oil heating, pumping and filtering system comprising a pair of oil heaters, frames supporting said heaters in parallel relation to each other, a pan supported by said frames above said heaters, pumps rising from the pan and disposed in vertical alignment with the respective heaters, a horizontally disposed coil arranged in each heater and coiled from its inlet and having a straight portion extending to its outlet, means for causing filtered oil to be delivered to the pumps and then discharged to said coils and a filter connected with said coils to receive the heated oil therefrom and for caus ing said oil as it leaves the filter to pass to the burner line of a heating plant, means for delivering steam to the central portion of said heaters to serve as a heating agent for the oil flowing through said coils.

2. Mechanism of the class described comprising a plurality of identical oil heaters, a pump for each heater, a valved connection between each pump and its respective heater, means for causing filtered oil to be conducted to the pumps and discharged therefrom to said valved connections, whereby to cause oil under; pressure to be delivered to the heaters, means for subjecting the heaters to the action of a heating agent, a strainer common to all of said heaters, and valved means between each heater and said strainer for causing one or all of said heaters to be arranged in operative connection with said filter, a pan superposed with respect to all of said heaters and constituting a support for all of said pumps, and a frame rigidly joining the heaters of the pan.

8. Mechanism of the class described comprising a plurality of oil heaters, an individual pump for each heater, means for causing oil to flow to the pumps and to pass therefrom to the respective heaters, means serving as a source of reception for oil flowing from one or all of said heaters, and including valved connections receiving heated oil from the heaters, and a frame structure superposing the pumps with respect to the heaters and including saddles arranged respectively above and below the heaters and serving to permit of sidewise withdrawal of one of the heaters from the frame without disturbing the normal relation of the other of said heaters.

In testimony whereof I have aflixed my signature.

'EARLE I. STAPLES.

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