CN201374311Y

CN201374311Y - Plant growing lamp

Info

Publication number: CN201374311Y
Application number: CN200820042277U
Authority: CN
Inventors: 姜洋
Original assignee: YANGZHOU QIANGBO PHOTOELECTRON TECHNOLOGY Co Ltd
Current assignee: YANGZHOU QIANGBO PHOTOELECTRON TECHNOLOGY Co Ltd
Priority date: 2008-08-04
Filing date: 2008-08-04
Publication date: 2009-12-30
Anticipated expiration: 2018-08-04

Abstract

The utility model provides a plant growing lamp for meeting the requirements of plant photosynthesis to spectrum, comprising an electric arc pipe part, a glass shell, a metal bracket, a lamp core, a gas-absorbing piece and a screw lamp cap; the lamp core is arranged in the glass shell and is connected with the end part of the glass shell in a sealing manner so as to form a sealed space in the glass shell; the electric arc pipe part is fixed between the glass shell and the lamp core by the metal bracket; the leads of the lamp core is welded on the positive electrode and the negative electrode on the screw lamp cap; the screw lamp cap is rotatably bonded at the tail part of the glass shell of a sealed lamp; the gas-absorbing piece is fixed on the metal bracket; the electric arc pipe part comprises a high-purity quartz tube, an electrode, a metal compound element, a filling gas, mercury and ceramic powder; and the metal compound elements comprises sodium iodide, iodization, indium, scandium iodide, lithium iodide and thorium iodide. The plant growing lamp is a product designed according to the requirements of plants with different growth periods to the spectrums, can meet requirements of the plant photosynthesis to the spectrum and is widely applicable to the high-efficiency energy-saving greenhouse fill light with domestic demand.

Description

Plant growth lamp

Technical field

The utility model relates to a kind of lighting device, is specifically related to a kind of high-intensity gas discharge lamp that is used to promote the plant growth.

Background technology

Any growth and development of plant all needs illumination.Usually people only rely on sunlight, but the breeding of the large-scale industrialized production of other industrial crops such as vegetables, flowers, tissue cultivation and test-tube plantlet etc. also need artificial light sources to replenish illumination.Late fall, winter, spring scenery seriously lack light according to the time weak point in the warmhouse booth, crop can not normal growth.As successive cloudy days, greasy weather, sleet sky, more can bring the growth of crop to seriously influence.Therefore, adopting artificial light source, is the effective way that promotes the plant growth at the indoor crop light filling of directly giving of canopy, and energy-efficiently to the theoretical foundation of the plant light filling theory that mainly to be plant absorb the selectivity of light.

Growth and development of plant, yield positive results to regulate by photosynthesis, photomorphogenesis, photoperiod and finish, these all be unable to do without the participation and the adjusting of light.The important envirment factor in the plant growth and development process only also is the main energy source of plant growth, but plant is not full wave but selectively to the absorption of light.Light roughly is divided into according to the difference of its wavelength: purple light (380～420nm), blue light (420～450nm), blue or green light (450～490nm), green glow (490～560nm), gold-tinted (560～590nm), orange light (590～620nm), ruddiness (620～780nm).The color of luminous object is decided by contained wavelength in its issued light, is called photochromic.Different green plantss are basic identical to the absorption spectra of light, mainly concentrate on the royal purple district of 400～460nm and the blood orange district of 600～700nm in the visual field.These two kinds of light that difference is photochromic are just as needed two kinds of plant " light fertilizer ".The green glow about 500nm exactly of intensity maximum in the daylight, and the content in royal purple and blood orange district relative a little less than.Though daylight can promote that plant balancedly grows, its light efficiency is not high, has not slatterned because of a large amount of green glow plants do not absorb to reflect, so we just can see that plant presents a slice green.People are making great efforts the absorption spectrum of simulating plant always in recent years, in the hope of developing certain luminescent material, make its emission spectrum, to greatest extent near the absorption spectrum of plant to produce resonance absorption, impel photosynthesis to carry out efficiently.Like this, no matter winter or overcast and rainy, the photosynthesis of greenhouse or booth implants can both normally carry out.

Because the needs of producing, the user of present various places buys various general lighting light source from the market and comes to comprise incandescent lamp for the booth light filling, fluorescent lamp, xenon lamp etc., but the light filling effect is all undesirable, and its reason is not fundamentally also understood the requirement of plant growth to illumination.

Summary of the invention

The purpose of this utility model is in order to solve the deficiencies in the prior art, a kind of plant growth lamp that satisfies photosynthesis of plant to the spectrum requirement to be provided.

The technical solution of the utility model is: a kind of plant growth lamp, comprise arc tube piece, glass bulb, metallic support, wick, inspiration piece and lamp screw base, described wick is arranged in the glass bulb, and be connected with the end seal of glass bulb, make at confined space of the inner formation of glass bulb, glass bulb internal protection gas and ambient atmosphere is isolated, arc tube piece is fixed between glass bulb and the wick by metallic support, the wire bonds of wick is on the both positive and negative polarity of lamp screw base, lamp screw base is the glass bulb afterbody that rotation is bonded in the good lamp of sealing-in, inspiration piece is fixed on the metallic support, plays foreign gas effect in the absorption glass bulb;

Described arc tube piece comprises high purity quartz pipe, electrode, metal compound element, blanketing gas, mercury and ceramic powder; Described electrode is installed in the high purity quartz pipe, and described ceramic powder is located at the inwall of high purity quartz pipe, and high purity quartz pipe inside is filled with metal compound element, blanketing gas and mercury.

The metal compound element is the main material that electric arc tube is filled, and except that considering spectral characteristic, also should consider: metallic compound has higher vapour pressure when selecting; Under the working temperature of lamp, do not produce chemical reaction with pipe wall material; In electric arc tube, produce circular response; require the steam under room temperature state to force down in addition; guarantee that lamp starts easily when starting working; its purity must reach 99.999%; and the metal compound element is under high pure nitrogen (99.999%) or the argon shield all the time in process of production, brings in the lamp with the foreign gas of guaranteeing the metal compound element.Its main component is the mixture of sodium iodide, indium iodide, scandium iodide, lithium iodide, thorium iodide etc.

After system lamp apparatus, lamp manufacturing process and luminous tube physical dimension were determined, system lamp material was most important, and wherein metal compound element material component and proportioning have a strong impact on luminous efficiency, color rendering index and the relative colour temperature of Metal halogen lamp.

The arctube walls material of plant growth lamp adopts high-quality quartz ampoule.Require quartz ampoule hydroxyl＜3ppm, low surface adsorption, high-purity.Hydroxyl is nonmetallic inclusion in quartz glass, can reduce the temperature tolerance and the devitrification resistance of quartz glass, influences the quality and the useful life of lamp.Impurity element (AL, Ca, Mg, Ti, Fe etc.) can quicken crystallization and produce white silica flour in addition, lowers light transmittance, influences luminous flux.

The dimensional discrepancy of the quartz glass course of processing also has material impact to the performance of lamp, as blow the sphere size size, and not only reduce the blowing rate of finished products, cause the electric arc tube volume inconsistent, and influence the consistency of photoelectric parameter, serious meeting generation electric arc tube foam bubbling accident.Therefore the outside diameter tolerance of quartz material and ovality, wall thickness deviation and inclined to one side wall degree and flexibility all have strict requirement.

Electrode material is selected and is designed whether there is close contact in the reasonable life-span to plant growth lamp.At first be chosen in the very high environment of chemism and can bear the metal that works long hours.Next has lower function power, and a large amount of emitting electrons is provided under lower temperature.We select to contain the thorium tungsten electrode that ThO2 is 1-2% at present.

It is most important that the plant growth lamp electrode is handled, otherwise can cause electric arc tube end blackout, restart electrode peak value height and electrode focus drift phenomenon.Therefore must carry out strict purified treatment to contaminated electrode.(1) selected rational electrode cleaning fluid and clean standard and carry out chemical cleaning (2) and improve electrode annealing in hydrogen atmosphere temperature (3) and adopt vacuum sintering furnace or high frequency further to handle.(4) under high purity inert gas is protected all the time in electrode storage and the production operation.(5) protective gas is an amount of during clamp, prevents anodizing.

Fill protective gas and select the KrAr gaseous mixture for use, be characterized in improving the startability of lamp, reduce electrode sputter, the early stage blackout of lamp such as make to be effectively controlled, to have improved the lux maintenance of lamp.

Must strict control trace impurity in the electric arc tube production process enter, store and production overall process intraductal material and parts all the time under the high purity inert gas protection.Even small gas leakage all may cause some aqueous vapors to enter in the electric arc tube in protection air pipe or gas extraction system, cause clamp anodizing, the exhaust traditional Chinese medicine pill moisture absorption.And the impure of blanketing gas will directly influence gaseous arc pipe internal performance.Must strictness take measures to guarantee the pure of blanketing gas and protective gas for this reason

Ratio is very little in the light radiation of mercury in lamp, but the optimal buffer gas of the plant growth lamp that its steam is can further stop the diffusion of metal vapors and halogen gas, reduces heat conduction loss, improves the luminous efficiency of lamp; Utilize the big electron collision cross section property of mercury atom to reduce the plasma electrical conductivity, increase electric field strength and arc power density.Keep higher modulating voltage, to improve the electrical quantity of lamp.And mercury and halogen atom produce mercury halide, can reduce the adverse effect that halogen atom causes startup, the startup that helps lamp.

The production use should be purchased purity and be reached 99.999% mercury.To adopt automatic mercury filling and high-purity gas resist technology in mercury filling to lamp.

At the problem that the large-scale industrialized production of industrial crops exists, we continue further investigation and find, increase the red light irradiation amount in the plant growth, can suppress the generation of lateral root, but can improve the sugar content of crop; Increase blue light, can suppress the elongation of petiole, but the protein content of crop increases.Overseas utilization colored plastic film is tested vegetable crop, finds that the purple film has tangible production-increasing function to eggplant.Research blue light and ruddiness to the chrysanthemum growth and bloom influence the time find that blue light helps the growth of chrysanthemum cauline leaf and side shoot produces, form plentiful strain shape and also can shift to an earlier date 12 days florescences.In photosynthesis, optical band is also influential to photosynthetic oxygen evolution speed, Chu Zhong is rare to be waited with 14 days cucumber of growth under blue light, ruddiness and the white light, found that the plant of cultivating with ruddiness, its photosynthetic oxygen evolution speed is the highest, than high by 44.9% under the white light, blue light to put oxygen speed minimum, also lower by 4% than White-Light processing, in addition, optical band has regulating action to carbohydrate and the protein metabolism of higher plant.The growing plants protein content is higher under blue light, and the common carbohydrate content of growing plants is higher under ruddiness.This illustrates the photochromic nitrogen metabolism process that affects plant.

Theory of phasic development according to the plant growth can be divided into following several stages:

(1) period of vernalization: the plant in this stage is in the budding period, and humidity and temperature are playing a major role during this period of time in the external condition.

(2) photostage: plant germination also grows after several initial greenery, has just entered photostage.Chlorophyll changes into organic substance to water and carbon dioxide by photosynthesis.In this stage, the length of light application time can directly influence the growth of plant and the formation of phytomorph, particularly to organ of multiplication---the growth formation of flower of plant, plays a part especially crucial.Such as sago cycas, opened in about 10 years once at northern area and to spend, and at different southern area of hours of daylight, as almost bloom in Yunnan, area, Guangdong every year; Rubber tree blooms scarcely ever in Beijing, and often blooms in Indonesia, Malaysian area; Cocoanut tree blossoms and bears fruit in Hainan, and the just only growth in the area, Guangdong, not result.These all need take into full account in the illumination Design process.

(3) the spectrum stage: after plant grew to certain phase, spectral component began the development growth of plant is played a major role.Discover through plant expert Long-term analysis, spectrum is as follows to the effect of plant growth: 1. purple light is with ultraviolet, wavelength is 300 ~ 440nm, be to promote vegetal inspired to become the main luminous energy of pigment, and directly influence plant the absorption of elements such as phosphorus and aluminium and the formation of vitamin D, the accumulation and the cuticular formation of dry.2. blue light, wavelength is 440 ~ 490nm, can enliven chlorophyllous activity, promotes photosynthesis.3. green light and sodium yellow, wavelength is 500 ~ 600nm, suppresses chlorophyllous activity, and photosynthesis is descended.4. orange-red light, wavelength is 600 ~ 700nm, can strengthen photosynthesis of plants greatly, helps promoting the plant growth, if but too much can cause the undue growth of plant branches and tendrils again.Simultaneously, plant is also different to the degree of absorption of different spectrum.Absorbing maximum is orange-red light, secondly is blue-violet light and the ultraviolet ray of wavelength 300 ~ 500nm, and less to the green-yellow light absorption of wavelength 500 ~ 600nm.The plant of the different habits in different regions is also inconsistent to the absorbability of illumination, and the happiness sun plant generally can absorb drops on the light more than 80% on its blade face, and the happiness heliophobous plant generally only absorbs the light about 60%.

Photosynthesis of plant has certain requirement to spectrum in sum

1, the intensity of illumination of 4000-5000Lux;

2, the lighting source of all band, continuous spectrum;

3, well balanced redness (610-640nm), blue (420-450nm) light;

4, long wave (400-420nm wavelength) ultraviolet light of certain intensity.

Through the plant growth lamp of our development, be the product that in different growing stages the requirement of spectrum is designed according to plant.Have and satisfy the requirement of photosynthesis of plant spectrum.If promote successfully at home, then will extensively be suitable for the high efficiency energy saving hothouse light filling lamp of domestic demands.

The invention of plant growth lamp is a principle of utilizing high-intensity gas discharge lamp, and develops at the characteristics to the spectrum specific (special) requirements of plant growth lamp.

Under electrion, metallic atom is stimulated and can will gives off the light of certain wavelength when the excitation state of high level jump back to ground state than low-lying level.Different metallic atoms can send the light of different wave length when Jie jumps.The spectral line of sodium metal is 589 ~ 589.6nm sodium yellow, the spectral line of metal scandium is near ultraviolet and the blue light of 361.3 ~ 424.7nm, the spectral line of indium is the blue light of 451.1nm, and the spectral line of gallium is the purple light of 403.3 ~ 417.2nm, and the spectral line of lithium is the blue light of 670.8nm.Add scandium, sodium element, then two kinds of spectral line couplings are just near sunlight.Scandium, the sodium atom of getting back to ground state again can be synthetic with the materialization of halogen family element, and circulation can keep higher atomic concentration and increase the service life in fluorescent tube like this.According to above-mentioned analysis, we add the corresponding metal element compound according to the different proportion prescription at the HID lamp, just can obtain the plant needed spectrum of growing.

The beneficial effects of the utility model:

(1) widely applicable: as to be applicable to various crops, to comprise that fruit, melon, leaf vegetables, flowers, group train, grow seedlings etc.

(2) cost performance height: the luminous efficiency of lamp and utilization rate of electrical are than sodium vapor lamp height.

(3) remarkable in economical benefits: can quicken plant growth, promote the crop precocity.Because of breed difference, output can improve 20%～50%, adds because the price advantage that ripen in advance is brought can bring remarkable economic efficiency.The greenhouse of configuration light filling lamp calculates by the annual power consumption 600-800 in each greenhouse unit, can increase income 3000～5000 yuan.

(4) pollution-free: as to be called as " Green Lighting Project ".

Description of drawings

Accompanying drawing is the structural representation of the utility model embodiment.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is further described:

As shown in drawings, a kind of plant growth lamp, comprise arc tube piece 1, glass bulb 2, metallic support 3, wick 4, inspiration piece 5 and lamp screw base 6, described wick 4 is arranged in the glass bulb 2, and be connected with the end seal of glass bulb 2, make at confined space of glass bulb 2 inner formation, arc tube piece 1 is fixed between glass bulb 2 and the wick 4 by metallic support 3, the wire bonds of wick 4 is on the both positive and negative polarity of lamp screw base 6, lamp screw base 6 is glass bulb 2 afterbodys that rotation is bonded in the good lamp of sealing-in, and inspiration piece 5 is fixed on the metallic support 3;

Described arc tube piece 1 comprises high purity quartz pipe 10, electrode 12, metal compound element 8, blanketing gas 7, mercury 9 and ceramic powder 11, described electrode 12 is installed in the high purity quartz pipe 10, described ceramic powder 11 is located at the inwall of high purity quartz pipe 10, and high purity quartz pipe 10 inside are filled with metal compound element 8, blanketing gas 7 and mercury 9.

Claims

1, a kind of plant growth lamp, comprise arc tube piece (1), glass bulb (2), metallic support (3), wick (4), inspiration piece (5) and lamp screw base (6), described wick (4) is arranged in the glass bulb (2), and be connected with the end seal of glass bulb (2), make at confined space of the inner formation of glass bulb (2), arc tube piece (1) is fixed between glass bulb (2) and the wick (4) by metallic support (3), the wire bonds of wick (4) is on the both positive and negative polarity of lamp screw base (6), lamp screw base (6) is glass bulb (2) afterbody that rotation is bonded in the good lamp of sealing-in, inspiration piece (5) is fixed on the metallic support (3), it is characterized in that: described arc tube piece (1) comprises high purity quartz pipe (10), electrode (12), metal compound element (8), blanketing gas (7), mercury (9) and ceramic powder (11), described electrode (12) is installed in the high purity quartz pipe (10), described ceramic powder (11) is located at the inwall of high purity quartz pipe (10), described metal compound element (8), blanketing gas (7) and mercury (9) are located at the inside of high purity quartz pipe (10).