US2246678A - Deep well and cistern automatic pumping plant - Google Patents

Description

June 24, 1941.

T. s. HARRIS DEEP VIELL'AND CISTERN AUTOMATIC PUMPING PLANT Filed Aprill 6, 1939 Patented June 24, 1941 OFFICE DEEP WELL AND CISTEBN AUTOMATIC PUMPING PLANT Thaddeus S. Harris, Waverly, Ill.

Application April 6, 1939, Serial No. 266,314

(Cl. a-5) 3 Claims.

This invention relates to a deep well pump of the jet type, as also described in my patent application No. 223,005, :tiled August 4, 1938,. and my later application No. 256,713, iiled February 16, 1939.

Some of the advantages provided by the construction described herein are that means are provided for securing automatic cistern water service from the same pump that provides the deep well operation, and these same means can also be utilized to provide automatic reprimlng of the deep well unit.

Figure 1 o1 the accompanying drawing illustrates a diagrammatic elevation oi the complete installation, with the more essential parts shown in section.

Figure 2 shows a sectional view oi' a slightly modied form of the main automatic valve assembly.

Figure 3 is a. sectional view of an abbreviated i'orm of the repriming valve that can be used when cistern water service is not desired.

Referring to Figure 1, a suction type force pump I is belted tothe motor 2. From the discharge chamber 3 a discharge pipe 4 extends to the storage tank 5, with the control valve 6 connected into this line. The diaphragm chamber 1 has the diaphragm 6 across it, with the top side open to atmospheric pressure. while the lower side is subject to the pressure within the pipe 4. Diaphragm 3 is connected to valve 6 and the spring 6 is disposed to hold valve 6 closed under considerable pressure.

A secondA discharge line I6 extends from chamber 3 to the jet unit in the well, with valve II controlling this discharge line. Valve II is connected to the diaphragm I2 and a spring I3 is disposed to close valve Il.

An intake pipe I4 extends from the intake chamber I4 to the jet unit in the well. This passage is controlled by a check valve 24 and by valve I1 of the valve assembly unit I6.

The automatic unit I6 has the main control rod I6 with the valve I1 fixed to it and controlling port I1. Another pipe line I6 connects into the intake end of unit I6, extending to the cistern I9 and joining passage I4 by the port 26. Port 26 is controlled by valve 26', which is slidably connected on rod I6, being supported by a sleeve 2| which is iixed on rod I6. A spring 2i' is disposed to hold valve 26' against sleeve 2i. Valve 26' has the cylindrical sleeve guide portion 22 with the tapered slit 23. A hand valvel 24 provides ior manually closing pipe I6. A pipe 25 extends from tank 6 to the unit I6, where it also joins pipe passage I4, under control oi valve 20'. A hand valve 25 provides for manually closing this pipe.

rod I6 in such position that valve 26 is open.

A pipe 26 extends from pipe 4 to the right side oi' the diaphragm chamber, and this side of the chamber has the port 36, which is controlled by valve 3i, xed on rod I6. Valve 3i has the slotted sleeve guide 32, so that the port is practically closed well before valve 3| seats. Port 36 is connected by pipe 33 to storage tank 34 with the hand valve 35.

An electric switch lever 36 is so pivoted to the diaphragm chamber casing that it may be engaged by the post 31 on diaphragm 21. A spring 31' causes the points 21, 21 to be normally closed.

The iet booster' unit 38 has the iet 36 connected to pipe I6, while the delivery tube 43 is connected to pipe I4. The. intake pipe 4I connects to the water oi the well. The jet opening has theA small cleaner rod 42 extending through it when the pump is not operating. The 'plunger 43 carries rod 42 -and a spring 44 supports plunger 43 in cylinder 45.

Tank 6 has the pressure controlled switch 464 connected to its service line 46', and tank 34 has-the switch 41 connected to its service line 41. Switches 46, 41 are connected in multiple, in the main feed wire 48, by wires 49, 66, 6I. Wires 60, 5I also connect to points 21, 21', respectively. One terminal o1 motor 2 is connectsd to the main wire 52 while the other is connected by wires 63, 53 to switches 46, 41.

Referring to Figure 2, vthis shows an automatic unit with practically the same form as unit I6 of Figure 1, except that the cylinder 66 and the plunger 6I replace the diaphragm chamber 26 and diaphragm 26', and the switch lever 63 is operated from the end of the main casing, to replace the lever 36 of unit I5.

Referring to Figure 3, the diaphragm chamber` has the diaphragm 66 to which is iixed the valve rod 61. Rod 61 extends through the packing gland 66 and has valve 69 fixed to it. Valve 66 controls port 16, which connects passages 26 and I4. A spring 1I is disposed to hold valve 66 open, when the pump is idle.

The operation of the installation shown in Figure 1 is as follows: With switches 46, 41 set on a 20 lb. to 40 lb. range, the spring 23 is adjusted so that diaphragm 66 starts to move at about 45 lbs. pressure per square inch on diaphragm. Valve II is set to open at about 50 lbs. pressure and valve 6 is set to commence to open at about 55 lbs. pressure, with the diaphragm completing its movement and completely closing valve 20 at about 60 lbs. pressure.

Valves 20 and 3i are at least partially open when the pump is idle, so, regardless of Whether switch 41 or 46 closes, water is at first drawn through port 2l, coming from the cistern, if valves 24, 3l are open and valve 25' closed. as when providing cistern water service. Water is delivered to tank I4 until the pressure causes switch," to open. If switch 46 is also closed the pump continues to operate throwing the diaphragm to partially close valve 3i, after which the pressure quickly increases to open valve ii, putting the jet into operation. Further increase of discharge pressure opens valve 6 and closes valve 2l which slides back on rod I8, allowing valve 3i to also close under suicient pressure to prevent the ilow of water to tank 3l. The installation is then in full deep well operation. If unit Il is to be u sed only for priming purposes, vulves 2l and 35 are closed and valve 25' opened. The starting operation is then the same except that the first water is drawn from tank 5, providing ior refilling pipes lu and I4 to replace any leakage and insuring that full discharge pressure wili quickly be built up. Should switch il fail to open ior any reason as because of valve 35 being closed, then switch 86 breaks the circuit as the diaphr completes its shift.

Rod 32 serves to keep the jet free ci trash as it moves into the Jet while the pump is idle, automatically moving back as pressure builds up.

if no cistern water service is at all desired, then an abbreviated construction as shown. in Figure 3 accomplishes automatic repriming, re placing water in pipes i@ and ifi irorn tank until the norrnai discharge pressure is built up, after which valve 69 cioses against any further nos?,

The operation of the unit shown in Figure 2 is essentially the same as described for unit ib.

li desired, the dnal operating pressure may be made considerably less than 60 lbs. by adiustment ci' the diderent units.

i claim as new:

i. In an automatic cistern and weil pumping plant, the combination oi a suction type force pump, an electric motor operably connected to said pump, an electric power source, a well water tenir, an electric switch connected to said tank and interposed between said motor and said power source, a cistcrn, a cistern ter tank, a second electric switch, said switch being connected to said tank and interposed between said motor and said power source, a discharge chamber from said pump, an intake chamber to said pump, a passage from said discharge chamber to said well water tank, a pressure control valve connected into said passage, a jet type booster unit comprising a iet and conical delivery tube, a second discharge passage, said second passage extending from said discharge chamber to the jet oi said booster unit, a pressure controlled check valve in said second passage, an automatic control unit comprising a diaphragm chamber, a diaphragm across said chamber, one side of said diaphragm chamber being connected to said discharge chamber, the opposite side of said diaphragm chamber being open to atmospheric pressure, a spring in this side of said chamber and disposed to support said diaphragm, an intake control chamber fixed to said diaphragm chamber, a passage connecting said intake control chamber to the intake chamber of said pump, a passage from said intake control chamber to the delivery tube of said booster jet unit, a valve controlling said passage, said valve being operably connected to said diaphragm, a second e from said intake control chamber, said second passage extending to said cistern, an automatic valve controlling said passage, said valve being operably connected to said diaphragm, a second and manually controlled valve in said passage, a passage from said pump discharge chamber to said cistern water tank, an automatic valve in said passage, said valve being operably connected to said diaphragm, a manually ,operable valve in said passage, a passage from said intake control chamber to said well water tank, a manually operable valve in said passage, an electric switch fixed to said diaphragm chamber, being operably connected to said diaphragm and interposed in series connection between said second switch and said power source.

2. In an automatic cistern and deep well pumping plant the combination of a suction type pump, means for operating said pump, a well, a cistern, a well water tank, a cistem water tank, a discharge chamber fixed to said pump, an intake chamber fixed to said pump, a passage from said discharge chamber to said well Water tank, a pressure controlling valve connected into said passage, a jet type booster unit in said well, said unit comprising a cone shaped delivery tube and a jet disposed to discharge into its smaller and, a passage from said discharge chamber to said iet, a pressure operated check valve in said passage, an automatic master contrai unit, said unit comprising a diaphragm chamber, a diaphragm across said chamber, one side of said chamber being connected to said discharge chamber, the opposite side of said chamber being open to atmospheric pressure, a spring disposed in the open side of said chamber and disposed to support said diaphragm, an intake control chamber xcd to said diaphragm chamber, a passage extending irom said intake control chamber to the intake chamber oi said pump, a pe from said intake control chamber to said delivery tube oi the booster unit, a valve controlling said passage, said valve being orably connected to said diaphragm, a cistern water intake passage extending irom said intake control chamber, a valve in said passage, said valve being operably connected to said diaphragm, a passage from said pump discharge chamber to said cistern water tanins valve in said passage, said valve being operably connected to said diaphragm.

3. In an automatically reprimed pumping plant, the combination of a suction type pump, means for operating said pump, a storage reservoir, a pump discharge chamber with e from said chamber to said storage reservoir, a pressure control valve connected into said passage, an intake chamber fixed bo said pu'mp, an intake pipe extended downwardly from said intake chamber, an automatic repriming assembly comprising a passage from said intake chamber to said storage reservoir, a valve controlling said ge, a diaphragm chamber ilxed to the housing of said valve. a diaphragm across said chamber, said diaphragm being operably connected to said valve, one side f said chamber being connected by a passage to said pump discharge chamber, the opposite side of said diaphragm chamber being open to atmospheric pressure, a spring disposed to move said diaphragm to normally maintain said valve in an open position when the pump is not delivering approximately its maximum pressure.

` 'I'HADDEUB S. HARRIS.

Images