CN2729588Y

CN2729588Y - Self-tracking solar heat collecter of double-paraboloid hydraulic piston type

Info

Publication number: CN2729588Y
Application number: CNU2004200763283U
Authority: CN
Inventors: 梁峻浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-08-12
Filing date: 2004-08-12
Publication date: 2005-09-28
Anticipated expiration: 2014-08-12

Abstract

The utility model discloses a self-tracking solar heat collector of the double-paraboloid hydraulic piston type. The utility model adopts two paraboloids to connect into one body parallelly. A rotary shaft is fixed on the lower part of the connecting point. The centre of the gravity of the two paraboloids is coincident with the rotary shaft. A connecting rod which is connected with a piston on both heads is connected with a traction end, and through a gear wheel or a gear strip or a chain the rotary shaft is connected by the traction end. The utility model adopts the hydraulic piston to push the double-paraboloid to rotate. The utility model has the advantages of simple structure, easy manufacture, high reflecting material utilizing rate and simple and reliable tracking solar manner. The ability of the anti-hail disaster is much higher than the ordinary heat box type and vacuum tube heat absorption type solar energy water heater. The utility model is extremely easy to comprise a large solar energy heat adoption matrix, and the utility model makes a good deal of heat energies provided to become feasible.

Description

Double-paraboloid curved surface hydraulic piston type autotracking solar energy heat-collecting device

Technical field:

The utility model relates to a kind of equipment that utilizes of solar heat, especially a kind of double-paraboloid curved surface hydraulic piston type autotracking solar energy heat-collecting device.

Background technology:

Common its focal line of parabolic surface solar energy heat-collecting device overlaps with rotating shaft, and center of gravity but departs from rotating shaft, can cause tracking system will have bigger torque like this, and discontinuity, and wind resistance power is also relatively poor.

General parabolic surface autotracking system adopts the Mechanical ﹠ Electrical Transmission system more, and its structure more complicated, inertia are bigger, and the higher and difficult acquisition of cost is controlled accurately, thereby is not suitable in universal formula solar energy heat-collecting device application.

Summary of the invention:

The purpose of this utility model provides a kind of simple in structure, and the mode of following the tracks of the sun is simple, and anti-disaster ability is strong, the double-paraboloid curved surface hydraulic piston type autotracking solar energy heat-collecting device that solar energy utilization ratio is high.

Technical solution adopted in the utility model is:

Two groups of parabolic surface daylighting reflector group synthetic one are rotated whole, and design this tumbler center of gravity and overlaps, so not only can improve the stability of integral body effectively with rotating shaft, and to the also greatly reduction of requirement of autotracking system torque.Architectural feature is: two parallel being connected as a single entity of parabolic surface, and its bottom, junction is fixed with a turning cylinder, and double-paraboloid curved surface center of gravity overlaps with turning cylinder; The connecting rod that two connects piston links to each other with traction end, and connects turning cylinder by gear or tooth bar or chain and be pulled end, adopts hydraulic piston to promote the rotation of double-paraboloid curved surface.

The utility model has the advantages that:

1. solar energy utilization ratio height.

Solar energy is owing to be collected on the focal line of parabolic surface, so its energy per unit area greatly improves, can effectively reduce the surface area (surface of interchanger be endotherm area also be area of dissipation) of heat exchanger, therefore can improve the thermal efficiency (can reach about 60%) effectively, simultaneously owing to energy density on its focal line is big, working medium can be heated to higher temperature (can reach hundreds of degree/℃), so just can expand the purposes of this heat-collecting device greatly.

2. simple in structure, make easily reflecting material utilization rate height.

Because reflective metal material is laid on (paved surface of skeleton setting-out is parabolically made) on the skeleton of making in advance, it is a rectangle that parabolic surface launches, so metal material utilization rate height.

The mode of 3. following the tracks of the sun is simple and reliable.

This device adopts the hydraulic piston type autotracker supporting with it, the simple and reliable easy row of method, and adopting longitude to follow the tracks of usually can meet the demands, in case of necessity also longitude and latitude tracking simultaneously.

4. anti-hail disaster ability is much higher than the solar water heater of the box and vacuum tube heat absorbing formula of ordinary hot.

5. very easily form large-sized solar and adopt hot matrix, make that to provide a large amount of heat energy to become feasible.As make water heater and can be collective's heat supply water, also can be that the directly-heated type refrigeration machine improves heat energy easily.

Description of drawings:

Fig. 1 is the utility model structural representation.

Fig. 2 is the middle part cutaway view of Fig. 1.

Fig. 3 is the actuating unit schematic diagram.

The specific embodiment:

The utility model rotates two groups of parabolic surface daylighting reflector group synthetic whole, and designs this tumbler center of gravity and overlap with rotating shaft, sees Fig. 1, Fig. 2.Promptly two optically focused parabolic surface 1 parallel being connected as a single entity are equipped with metal material above and make reflecting surface, and the water pipe 2 usefulness supports 3 that contain insulation material are fixedly connected on this double-paraboloid curved surface 1, and water pipe 2 just is positioned on the focal line of parabolic surface.Bottom, two optically focused parabolic surfaces, 1 junction is fixed with a turning cylinder 5, this axis also just in time overlaps with the center of gravity of double-paraboloid curved surface, turning cylinder 5 two are fixing with supporting seat 4, the outer end is stretched out and is pulled end, link to each other with the traction end 6 of Fig. 3 with gear or tooth bar or chain, the linear reciprocating motion of hydraulic piston connecting rod is transferred to the rotational motion of optically focused parabolic surface.

Fig. 3 is the power section schematic diagram, the utility model proposes a kind of hydraulic piston type tracking system that very easily realizes.The end that is pulled of the traction end 6 among the figure and the turning cylinder 5 of Fig. 1 links to each other, and connecting rod 7 is to be rigidly connected with traction end 6, and the piston 8 at connecting rod 7 and two also is rigidly connected, and guarantees that piston will move when moved in vivo by hydraulic action accurately to pass to traction end.Magnetic valve 9 controls are equipped with in feed liquor and discharge opeing two loops respectively.

Principle summary: when the signal of differential type light-controller output toward left movement, the feed liquor on the right and the draining solenoid valve on the left side are opened, there is the liquid of pressure to enter in the cylinder body of the right by feed tube, promote piston toward left movement, and the liquid in the cylinder body of the left side is discharged through discharging tube, connecting rod and traction end are toward left movement, otherwise toward right motion, like this, the differential type light-controller just can convert equation of light signal to the linear reciprocating motion of traction end, pass through the engagement of hauling rope or haulage chain or rack pinion again and be connected, straight reciprocating motion is just become with solar energy equipment, the despining campaign, thus reach the purpose of following the tracks of the sun.

This system advantage:

1. simple in structure, reliable operation.Because of its action of tracking system of solar energy heat-collecting device very slow (only need every day rotating angle≤180 °), but tracking accuracy requires very high these two characteristics, and hydraulic system is very easily accomplished just, and it is simple in structure to compare motor transmission system, no high-speed moving part, life-span is long, reliable operation, and motor transmission system inertia is big, very easily cause overshoot or vibration, the influence of the reducing gear machining gap in the motor transmission system simultaneously also influences rotation precision, and the cost height, and it is difficult to safeguard.

2. because the hydraulic press principle of hydraulic pressure required pressure concerning solar tracking system, i.e. the very little demand that just can satisfy of the pressure of liquid to power, so implement extremely simple, as solar water heater only need can meet the demands with the pressure of running water.

3. energy consumption is low.General motor transmission system all needs tens of watts of power, and the native system energy consumption is the energy (＜10 watts) of opens solenoid valve, disregards and establishes compression pump institute energy requirement in addition.

Claims

1, a kind of double-paraboloid curved surface hydraulic piston type autotracking solar energy heat-collecting device comprises the optically focused parabolic surface and passes through support side's fixed thereon water pipe and supporting seat, it is characterized in that:

1. parallel being connected as a single entity of two parabolic surfaces (1), its bottom, junction is fixed with a turning cylinder (5), and double-paraboloid curved surface (1) center of gravity overlaps with turning cylinder (5);

2. two connecting rod (7) of connecting piston (8) links to each other with traction end (6), and connects turning cylinder (5) by gear or tooth bar or chain and be pulled end, employing hydraulic piston promotion double-paraboloid curved surface (1) rotation.