DE3542865A1 - Linear water pump operated with solar energy - Google Patents

Abstract

Linear water pump operated with solar energy, a liquid working medium being evaporated in an absorber pipe 2 with the aid of a concentrating collector, for example a linear Fresnel lens 1, and conducted under a working piston 5 which is connected via a steel wire 4 to a pump piston 18 and with its upward movement delivers water via a riser pipe 15 into a tank 14, in which a pipe coil condenses the vapour of the working medium flowing in as a result of the upward movement of the working piston, and passing via a feed pump 8, 9 back into the absorber pipe again, whereupon the working cycle which is regulated by four two-way valves 6, 7 and 10, 11 is repeated. <IMAGE>

Description

flit solar powered linear water pump

The invention relates to a solar powered linear water pump, in which the conversion of solar energy into a mechanical, for lifting loads suitable form of energy through a thermal cycle of a liquid, for evaporation and subsequent condensation brought working medium is effected in the principle of a piston steam engine.

The purpose of the invention is to develop an inexpensive one V. water pump for mobile use in sunny countries without, or more difficult "" energy supply.

Fit solar-powered pumps are well known and in low-malfunction "Commitment. Working consistently in the Rankine process, these devices already built in series have proven their usefulness and are partly described in the patent literature, in particular in the international class FO3G 7 / o6. The descriptions of the pumps working in practical use can be found in the "Helio-Technik" published by Udo Pfriemer-Verlag, Munich on pages 138-141, as well as in the volume "Wunsch-Energie Sonne" published by Energie-Verlag, Heidelberg, pages 30-4-37. Use all of these devices and suggestions for building similar devices: known technologies and known components, the arrangement of the components in each case being interpreted in terms of property rights obtained. Since with a TDnergie balance the costs of the solar energy can only be represented by the construction costs and the service life of a solar pump, the further development lies and the improvement of the known, relevant pumps in the reduction of construction costs with the simultaneous demobility of water pumps, which are of great importance in the areas mentioned is to increase is.

According to the estimated state of the art, the

Invention underlying task in the reduction the construction costs of relevant systems, in particular with collectors that are not tracked require large collector areas, in order to achieve useful work performance with low-boiling working media with industrial water heat.

"The solution to the task begins once with the use of a more focused. Collector in order to be able to use a working medium whose evaporation requires Proζess- · / arm9 and for it higher performance with smaller piston cross-sections possible, the solution to the problem lies in the case of everyone Linkage, or Rervo-Gerstes, assigned to the actual pump are. And finally, the working piston and cylinder to which the evaporated working medium is to be applied acts as a feed pump educated. The solution to the problem also consists in the complete separation of the pump drive from the Fiompe, as far as \. these are elements of normal equipment and mechanical engineering dumbbells

In the drawings, the pump according to the invention operated with solar energy is shown in 2 figures. It mean

Fig. 1 is a schematic representation of an embodiment of the solar power operated according to the invention linear water pump in the starting position at the beginning of the work cycle.

Fig. 2 Schematic representation as in Fig. 1 after the end of the work cycle and the path started to the starting position.

According to the invention, the water pump operated with solar energy consists of a linear concentrating collector, the linear Fresnel lens of which has a line focus on the absorber tube; _: ; (? * projects and lets the working medium in it evaporate? ■ ·. lets the steam pass through the opened pipe under the working piston (5) and expand there, causing the working piston in the cylinder (4) to expand is pressed up.

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The piston (13) with the one lying in the groundwater cylinder (17) is connected with a steel wire, is raised with it and presses the water standing above it via the riser (15) into the basin (14). During the working stroke of the working piston, the piston rod (9) moves into the feed cylinder (R) pressed in which is different from the previous knob movement the liquid working medium coming from the condenser coil (1.5) is now back into the absorber tube When this work cycle is complete, the two One-way valves (6) and (11) open, which are closed when the piston assembly (5) and (18) according to FIG the two Zinweg valves (? ': and (1o) are open. 3is to complete the piston return path, the steam of the working medium expands into the pressure vessel (12 ". And is on the working stroke to disposal. In order to make full use of the sunny day, the pump according to the invention requires uniaxial tracking, which takes place on the simple frame (3 ") and by a spring mechanism is operated, which is fed by the working stroke, as well as the periodic, alternating actuation of the 4- one-way valves. The wire connection between the working piston ( and the pump piston (18) allows water to be pumped into each Position of the pump cylinder (17) »if, according to the invention, deflection rollers are attached to the exit of the cylinder, these of course also to be provided on the working cylinder (4-), which increases the mobility of the contributes to the whole system. For example, the pump cylinder: can be thrown into a pool, where it can, with its own weight, or after an anchoring is able to convey water, where of course di :; The riser also consists of a hose Has.

tag list

1 concentrating Fresnel lens P. Ab sorber "pipe Tray guide frame Working cylinder 5 Working piston β lower inlet valve 7th lower exhaust valve β Feed pump cylinder 9 Feed pump piston 1ο upper inlet valve 11th upper exhaust valve 12th Pressure vessel 13th Pipe coils 14th Fresh water basin 15th Riser 16 Check valve 17th Pump cylinder 18th Pump plunger 1Q Pump valve flap 2ο Steel wire 21 Protection tube

Claims (3)

Claims 1. Solar powered linear water pump in which a Working medium through concentrated solar irradiation Brought aferdampfung and expanded in a piston cylinder and thereby accomplishes a linear load control, characterized in that the pump piston (1B) is carried by a steel wire with the. Working cylinder (4) is connected. 2. Kit solar powered linear water pump acc. Claim 1, characterized in that the working piston (5) is just as rigidly connected to a feed pump piston (9) as the working cylinder (4) is connected to the feed pump cylinder (8). 3. Solar powered linear water pump acc. Claim 1 and 2, characterized in that the pump cylinder (1?) Is provided with at least one deflection roller, which in correspondence with at least one deflection roller on Working cylinder enables the actuation of the pump piston, even when the pump cylinder is not in a vertical position, whereby the riser (15) made of a deformable elastic j material.