39results about How to "Reduce emission loss" patented technology

A process for brewing fruit wine, fruit vinegar and fruit brandy includes such steps as fermenting fruit juice to obtain dry, semi-dry, or sweet fruit wine, distilling the fermented wine substrate to prepare fruit brandy, and using the distilled dregs and squeezed fruit dregs to prepare fruit vinegar. Its advantages are high utilization rate of fruit, low cost, and less pollution.

The invention discloses a power grid optimal carbon energy composite flow obtaining method based on swarm intelligence reinforcement learning. The method comprises the following steps: S1, establishing a multi-object optimal carbon energy composite flow model object function, S2, setting a reward function according to the object function, S3, updating a Q value matrix of each main body according to an eligibility trace, S4, calculating a greed action of each main body, S5, updating an action probability matrix of each main body, S6, randomly selecting a pre-judgment action of each main body at a current state, S7, inputting the multiple main bodies in a coordinative manner, and solving an optimal action of a swarm, S8, performing updating and then obtaining action values after correction, S9, determining a control variable matrix, and performing load flow calculation, and S10, after the load flow calculation, judging whether the Q value matrix is convergent, taking a result obtained by last load flow calculation as a power grid optimal carbon energy composite flow if the Q value matrix is convergent, and returning to the S2 if the Q value matrix is not convergent. The method enables loss of an energy flow and loss of a carbon discharge flow in a power grid to reach minimums; and the good global optimization capability is guaranteed, and the convergence speed of an algorithm is obviously improve at the same time.

The invention relates to a production process of high-purity isoolefine (tert-olefin). The production process comprises a cracking reaction part, a washing part and a fractionating and refining part. The production process can adopt two implementation methods, namely fractionating and refining are carried out after water washing or fractionating and refining are carried out before water washing. In the production process, a low-molecular-weight ether washing separating column is added, so that light-component fractions which are separated from the top of an isoolefine refining column and contain low-molecular-weight ethers come into full contact with water in the washing separating column, accumulation of the low-molecular-weight ethers in the system can be effectively controlled and exhaust losses of isoolefine can be reduced; and meanwhile, new separating equipment is not added, thus lowering the cost and simplifying the operation.

The invention discloses a waste heat power generation method of a Stirling engine, relating to a waste heat power generation technology. A heat absorber of the Stirling engine is arranged in a gas-collecting cavity, and the top of the heat absorber is vertical to an incoming direction of waste heat. The waste heat power generation method comprises the following steps: helium or hydrogen is filled in the heat absorber to be as an acting medium of the Stirling engine and drives a piston of the Stirling engine to move forth and back to generate mechanical energy after being heated to expand, and the Stirling engine drives a power generator connected with the Stirling engine to generate power; and waste heat gas in the gas-collecting cavity heats the helium or hydrogen in the heat absorber and then is exhausted into environment. A device for converting the waste heat into the mechanical energy through the Stirling engine is a special component applied to the waste heat power generation method disclosed by the invention, and comprises the Stirling engine, heat collecting tubes, the gas-collecting cavity and the power generator. According to the waste heat power generation method of the Stirling engine, disclosed by the invention, heat is converted to the mechanical energy, and the mechanical energy is also converted to electric energy, thus waste heat power generation with the advantages of compact structure, good economical efficiency, convenience for using and no need of additional heating is realized; and the conversion from low-grade waste heat to high-grade electric energy is realized.

The invention discloses a 5G millimeter-wave phased array antenna, comprising phased array units, each phased array unit comprises an antenna unit and a radio frequency connector c; each antenna unitcomprises a radiation part a and a radiation part b; each antenna unit is of a three-layer plate structure and is internally provided with a bilayer radiation patch; each bilayer radiation patch includes four radiation patches in total, namely each radiation patch layer includes two radiation patches; a comb-shaped radiation gap is formed in each radiation patch; and a feeding mode of each antennaunit is gap coupled feeding, and a way that a T-shaped feeding microstrip line and an H-shaped coupling gap are matched is adopted. The antenna disclosed by the invention has the advantages that eachantenna unit reaches more than 30% relative bandwidth, so that aperture efficiency of the antenna disclosed by the invention is effectively improved; in a working frequency band, transmitting loss ofthe antenna disclosed by the invention is reduced, and antenna efficiency is improved; and radiation efficiency and gain of an antenna array are improved.

The invention relates to a refrigerating and / or freezing appliance, especially a refrigerator, an upright freezer or a chest freezer, said appliance comprising an evaporator for cooling air, a ventilator (30) for supplying the cooled air into the inner chamber of the refrigerating and / or freezing appliance, and a first heating device (10) for defrosting the evaporator (20). A second heating device (50) is arranged in such a way that, during the operation of the second heating device (50), the temperature of the surface of the ventilator is above the dew point of the air in the region of the ventilator (30), at least in certain areas.

The invention discloses an automatic sweep-frequency wireless resonant power transmission device and an operation method. A direct-current power supply, an inverter unit, a first resonant capacitor and a first inductance coil are sequentially and electrically connected in a one-way mode. A second inductance coil, a second resonant capacitor, a rectifier and filter unit and a load are sequentially and electrically connected in a one-way mode. A first acquisition unit is connected in parallel with the direct-current power supply. A second acquisition unit is connected in parallel with the load. Signals of the first acquisition unit, a main control board and the inverter unit are sequentially transmitted in a one-way mode. Signals of the main control board and a first communication unit are transmitted in a two-way mode. Signals of the first communication unit and a second communication unit are transmitted in a two-way mode. Signals of the second communication unit and the second acquisition unit are transmitted in a two-way mode. According to different loads connected, the frequency of alternating current can be automatically adjusted to a frequency maximizing the working efficiency of the system to make the system in a state of resonance. The system is stable, the anti-jamming capability is strong, and the transmission distance is large.

The invention discloses a special controlled-release fertilizer for lotus roots and a preparation method thereof. The preparation method comprises the following steps of preparing a fertilizer core by urea, potassium chloride, calcium phosphate, a trace element fertilizer, an inhibitor and a dispersant; performing inner coating treatment on the fertilizer core by an inner coating film agent which is prepared from polylactic acid, polyethylene glycol and ethyl alcohol; performing outer coating treatment on the fertilizer core by an outer coating film agent which is prepared from polyacrylate, ethylene propylene diene monomer, modified starch, acetone and water, so as to obtain the special controlled-release fertilizer for the lotus roots. Compared with the prior art, the special controlled-release fertilizer has the advantages that the nutrient elements in the fertilizer are rich, the utilization rate of a nitrogen fertilizer is high, the controlled-release property is good, and the nutrient requirement of the lotus root in each growth period is met; the outer coating can be recycled, so that the environment-friendly effect is realized; the inner coating can be completely degraded, so that the danger to surrounding environment is avoided.

The invention relates to a reaction device and a reaction method for producing methyl propionate. The reaction device comprises a static-state mixer, a carbonylation reactor, a flash evaporator, a light component removal tower, a catalyst recycling reactor and a liquid-liquid separation tower. According to the device and the method, a product which contains tar and is discharged by the carbonylation reactor is subjected to flash evaporation and separation; byproducts with low molecular weight produced in the reaction process is separated by using the light component removal tower; precious metal ions, methanol, propionic acid and methyl propionate are extracted by using warm water; a part of heavy phases which come out of the flash evaporator is fully mixed with the water, so that a part of organic matters with low molecular weight in the heavy phase and the precious metal ions are dissolved into a water phase; the separation of the tar and the water phase is realized in the liquid-liquid separation tower, and a water-phase mixture is finally sent back to the carbonylation reactor, so that the accumulation of the tar in the reaction system is reduced, and the loss of methanol is reduced.

The invention provides an OLED display panel and the production process thereof, which relates to the technical field of display, may improve the surface flatness and the water-oxygen permeation resistance of the flexible base substrate, improve the light output ratio of the display panel, and may control the center wavelength of the electroluminescence spectrum. The display panel comprises an anode and a cathode provided on a flexible base substrate, and an organic material functional layer situated between the anode and the cathode, and it further comprises a reticular light output coupling layer provided on the flexible base substrate and contacting the flexible base substrate; the anode, the cathode, the organic material functional layer are all provided on the reticular light output coupling layer; the reticular light output coupling layer, the anode and the cathode, and the organic material functional layer compose a micro-cavity; the micro-cavity is used for controlling the center wavelength of the electroluminescence spectrum and the light output ratio. The material of the reticular light output coupling layer is a reticular high molecular material having a high refractive index and a low absorptivity in the visible light range; and it is used for the production of the flexible OLED display panel.

The invention relates to a self-adaptive concurrent boiler drainage expansion control device and a self-adaptive concurrent boiler drainage system. Concurrent boilers are generally adopted by coal-fired power generation units with the power being 600MW or above, unit parameters frequently change along with the load, and adjustment of a drainage expansion system is difficult. The self-adaptive concurrent boiler drainage expansion control device is characterized by comprising a valve body base, a valve rod base, a sliding block base and a positioning base. A circular hole type steam flowing channel penetrates through the valve body base in the horizontal direction, and the two ends of the circular hole type steam flowing channel are connected with an expansion steam inlet pipe and an expansion steam outlet pipe respectively. A valve element movement space is defined by the valve rod base and the upper end surface of the valve body base. The two ends of a sealing valve rod are connected with a sealing valve element and a main sliding block respectively. The main sliding block and an auxiliary sliding block are arranged in the sliding block base, and the diameter of the main sliding block and the diameter of the auxiliary sliding block are matched with the inside diameter of the sliding block base. The upper end of a base sealing cover is connected with the positioning base. According to the self-adaptive concurrent boiler drainage expansion control device and the self-adaptive concurrent boiler drainage system, the energy of steam and drainage in the expansion process is sufficiently recycled, and parameters of the drainage expansion system can be adjusted according to the load requirements at any time.

The invention relates to a recovery system and method for a desulfurizing agent in a desulfurized gas of a catalytic-cracking regeneration waste gas. The recovery system comprises a desulfurizing tower, a condensing heat exchanger, a mechanical separation purifier, a heating heat exchanger and a filter, wherein a gas outlet of the desulfurizing tower is communicated with a gas inlet of the mechanical separation purifier through a first pipeline; the condensing heat exchanger is mounted in the first pipeline; the heating heat exchanger is mounted in a gas exhaust pipeline of the mechanical separation purifier; the condensing heat exchanger and the mechanical separation purifier are communicated with the filter respectively through second pipelines. The recovery system can be used for effectively decreasing the dew point of an outlet gas from the desulfurizing tower, is used for decreasing water vapor content and the particle concentrations of entrained desulfurizing agent and catalyst in the outlet gas, can be used for recovering most of the desulfurizing agent, and is used for decreasing the discharge loss of the desulfurizing agent, decreasing a running cost and meanwhile reducingenvironment pollution; through arranging the heating heat exchanger, an exhausted gas can be prevented from entering an environment of which temperature is lower than the temperature of the gas so that a liquid drop can be still immediately condensed and the formation of a rime fog is prevented.

The embodiment of the invention discloses a system and a method for reducing emission of flashed gas in a liquefied natural gas filling process and relates to the technical field of pressurization. The system comprises a storage tank, an immersed pump, a mixing tank, a compressor pry and a fuel tank. The method comprises the following steps: a, pre-cooling the system first before filling the fueltank with liquefied natural gas; and b, filling the fuel tank with liquefied natural gas. According to the system for reducing emission of flashed gas in the liquefied natural gas filling process andthe method thereof, the flashed gas in the storage tank in the liquefied natural gas filling process is mixed by the mixing tank and is then liquefied and filled to a user to be taken away, so that the liquefied natural gas is combusted on a user side. Therefore, diffused flashed gas is turned into wealth, so that the waste of energy source is reduced, and meanwhile, the emission loss of a naturalgas station is reduced, and therefore, contribution for energy conservation and emission reduction of the state is made.

The invention discloses a preparation method of special controlled-release fertilizer for Chinese water chestnuts. After fertilizer core is prepared from urea, potassium chloride, calcium phosphate, microelement fertilizer, an inhibitor and a dispersant, the fertilizer core is subjected to inner coating treatment with an inner coating agent consisting of polylactic acid, polyethylene glycol and ethyl alcohol and then subjected to outer coating treatment with an outer coating agent consisting of polyacrylate, EPDM (ethylene-propylene-diene monomer) rubber, modified starch, acetone and water, and the special controlled-release fertilizer for the Chinese water chestnuts is obtained. Compared with the prior art, the obtained controlled-release fertilizer has sufficient nutrient elements and high nitrogen fertilizer utilization rate, has controlled-release performance and can meet the nutrition requirement of the Chinese water chestnuts in each growth period; meanwhile, outer coats can be recycled and are environment-friendly, inner coats can be completely degraded, and the surroundings are not damaged.

The invention belongs to the technical field of carbon disulfide production equipment, particularly relates to a carbon disulfide gasification reacting furnace heating device and a heating method, and solves the technical problems of low heat utilization ratio of a combustion chamber, large fuel consumption and more discharge of pollutants in the existing carbon disulfide gasification reacting furnace heating device and the existing heating method. The carbon disulfide gasification reacting furnace heating device comprises an external heating furnace, a hot air flow radiation channel and a carbon disulfide reaction kettle; the combustion chamber comprises a lower combustion chamber and an upper heating and heat storing chamber, and a refractory ball or a checker brick is arranged in the upper heating and heat storing chamber. The heating device adopts a gas fuel in the combustion, and when the refractory ball or the checker brick in the upper heating and heat storing chamber is heated to 950 DEG C to 1000 DEG C, the lower combustion chamber stops combustion, the refractory ball or the checker brick in the upper heating and heat storing chamber starts to release heat, and the materials in the reaction kettle are continuously supported to have the chemical reaction. The fuel consumption is low, the energy utilization rate is high, the discharge of pollutants is little, and the obvious effects of saving energies and reducing emissions are achieved.

The invention relates to an electric heating furnace, which is characterized in that the furnace wall is sequentially provided with an insulating and heat-insulating layer, a heat-insulating fiber layer, a heat-insulating ash layer and a metal furnace plate from the inside to the outside; Multiple sets of metal heating bands are fixed on the insulation layer, and the metal heating bands are fixed to the insulation and heat insulation layer through several inner heat nails; the two ends of the metal heating bands are respectively fixed to one end of the positive and negative lead-out rods Connection, the other end of the positive and negative lead-out rods passes through the insulation and heat insulation layer, heat-insulation fiber layer, heat-insulation ash layer and metal furnace plate and is placed outside the furnace wall, and the junction of the positive and negative lead-out rods and the metal furnace plate is set. With insulating sheath. The invention has the beneficial effects of saving energy, improving the utilization rate of heat energy, reducing the production cost of steel rolling, reducing the power consumption of steel rolling to 250-260kWh / ton, and the processing cost is close to that of a heating furnace using coal as fuel, and it is environmentally friendly and pollution-free , Strong economic applicability.

The invention provides a horn-shaped antenna transmitting and emitting RF signals in different frequency ranges, and aims at providing an emitter which is simple in structure, easy to process and capable of transmitting the RF signals in different frequency ranges simultaneously. The internal of an external dielectric layer (1) is connected with a metal layer (2), the external dielectric layer and the metal layer are coaxially fixed to the small end of a tapered horn of a metal horn body (4) in the vertical direction, and the external dielectric layer extends along the tapered surface of the metal horn body (4) via a small-end port of the tapered horn to form a horn dielectric layer (3); and the RF signals in different frequency ranges are transmitted to the small-end port of the tapered horn simultaneously via a dielectric body area of the external dielectric layer (1) and a conductor cavity of the metal layer (2) respectively, and are emitted via a dielectric area of the horn dielectric layer (3) and a conductor cavity of the metal horn body (4). According to the horn-shaped antenna, the problem that an RF signal waveguide structure capable of transmitting RF signals in the same frequency range cannot be structurally integrated with the antenna is solved.

The invention provides a recovery method of rectification residue liquid during tetrachloroethylene production. The method comprises the steps that during the tetrachloroethylene production, heavy ingredients of a quench tower kettle sequentially enter a light removing tower and a tetrachloroethylene rectification tower; tower kettle liquid enters a tetrachloroethylene removing tower again for secondary rectification; the tetrachloroethylene is further separated and recovered; tower kettle liquid after the tetrachloroethylene removal enters a pentachloroethane rectification tower; the tower kettle liquid enters a hexachloroethane rectification tower to obtain a hexachloroethane product. The problems of great useful ingredient discharge loss and great residue liquid processing quantity in a conventional heavy ingredient concentration recovery method can be effectively solved. The tetrachloroethylene in the heavy ingredients can be effectively recovered; the hexachloroethane product is sufficiently separated out, so that the loss is reduced; the cost is reduced; the benefits are increased.

The invention relates to a self-adaptive concurrent boiler drainage expansion control device and a self-adaptive concurrent boiler drainage system. Concurrent boilers are generally adopted by coal-fired power generation units with the power being 600MW or above, unit parameters frequently change along with the load, and adjustment of a drainage expansion system is difficult. The self-adaptive concurrent boiler drainage expansion control device is characterized by comprising a valve body base, a valve rod base, a sliding block base and a positioning base. A circular hole type steam flowing channel penetrates through the valve body base in the horizontal direction, and the two ends of the circular hole type steam flowing channel are connected with an expansion steam inlet pipe and an expansion steam outlet pipe respectively. A valve element movement space is defined by the valve rod base and the upper end surface of the valve body base. The two ends of a sealing valve rod are connected with a sealing valve element and a main sliding block respectively. The main sliding block and an auxiliary sliding block are arranged in the sliding block base, and the diameter of the main sliding block and the diameter of the auxiliary sliding block are matched with the inside diameter of the sliding block base. The upper end of a base sealing cover is connected with the positioning base. According to the self-adaptive concurrent boiler drainage expansion control device and the self-adaptive concurrent boiler drainage system, the energy of steam and drainage in the expansion process is sufficiently recycled, and parameters of the drainage expansion system can be adjusted according to the load requirements at any time.

The invention provides a kettle. A kettle body of a warm keeping kettle is provided with an inner kettle body, and a seal screw cap is arranged on the upper portion of the kettle body. The kettle body is in a double-layer structure and can play a role in thermal insulation and warm keeping, the seal screw cap can reduce heat diffusion loss, and therefore the effect of energy saving is achieved.

The invention discloses a method for emptying a three-head deconcentrator and an oil-water separation barrel. The oil-water separation barrel is placed above the oil discharging mouth of an oil tank,the oil discharging mouth of the oil-water separation barrel is connected with the three-head deconcentrator through an oil-resistant pipeline, and a lower water drainage mouth of the oil-water separation barrel is connected with a three-stage oil separating tank through an oil-resistant pipeline so as to achieve separation of oil and water; the three-head deconcentrator is installed on the oil discharging mouth, an oil inlet in a filter is connected with a homemade joint of an oiling machine through an oil-resistant pipeline, and an oil outlet and the three-head deconcentrator are installed on the filter for rust removal; the three-head deconcentrator is installed on the oil discharging mouth, and oil is introduced into the oil discharging mouth of the oil tank through a separator so as to dilute a protective agent. According to the method for emptying the three-head deconcentrator and the oil-water separation barrel, emptying and returning to the tank of one same oil product in the three pipelines can be achieved simultaneously by achieving separation of the oil and water through the oil-water separation barrel, so that the work efficiency is improved, the emission loss is reduced, and pollution to the environment is reduced; in addition, preservative, lubricant and other substances in the new oiling machine and a hose can be mixed with the oil product in the oil tank in a closed cycle mode for dilution, and therefore the method is safe and environmentally friendly.

The invention provides an OLED display panel and the production process thereof, which relates to the technical field of display, may improve the surface flatness and the water-oxygen permeation resistance of the flexible base substrate, improve the light output ratio of the display panel, and may control the center wavelength of the electroluminescence spectrum. The display panel comprises an anode and a cathode provided on a flexible base substrate, and an organic material functional layer situated between the anode and the cathode, and it further comprises a reticular light output coupling layer provided on the flexible base substrate and contacting the flexible base substrate; the anode, the cathode, the organic material functional layer are all provided on the reticular light output coupling layer; the reticular light output coupling layer, the anode and the cathode, and the organic material functional layer compose a micro-cavity; the micro-cavity is used for controlling the center wavelength of the electroluminescence spectrum and the light output ratio. The material of the reticular light output coupling layer is a reticular high molecular material having a high refractive index and a low absorptivity in the visible light range; and it is used for the production of the flexible OLED display panel.

The invention discloses a method for emptying a three-head deconcentrator and an oil-water separation barrel. The oil-water separation barrel is placed above the oil discharging mouth of an oil tank,the oil discharging mouth of the oil-water separation barrel is connected with the three-head deconcentrator through an oil-resistant pipeline, and a lower water drainage mouth of the oil-water separation barrel is connected with a three-stage oil separating tank through an oil-resistant pipeline so as to achieve separation of oil and water; the three-head deconcentrator is installed on the oil discharging mouth, an oil inlet in a filter is connected with a homemade joint of an oiling machine through an oil-resistant pipeline, and an oil outlet and the three-head deconcentrator are installed on the filter for rust removal; the three-head deconcentrator is installed on the oil discharging mouth, and oil is introduced into the oil discharging mouth of the oil tank through a separator so as to dilute a protective agent. According to the method for emptying the three-head deconcentrator and the oil-water separation barrel, emptying and returning to the tank of one same oil product in the three pipelines can be achieved simultaneously by achieving separation of the oil and water through the oil-water separation barrel, so that the work efficiency is improved, the emission loss is reduced, and pollution to the environment is reduced; in addition, preservative, lubricant and other substances in the new oiling machine and a hose can be mixed with the oil product in the oil tank in a closed cycle mode for dilution, and therefore the method is safe and environmentally friendly.

The invention relates to a recovery system and method for desulfurization agent in catalytic cracking regeneration waste gas after desulfurization. The recovery system includes a desulfurization tower, a condensation heat exchanger, a mechanical separation purifier, a heating heat exchanger and a filter. The outlet of the desulfurization tower passes through The first pipeline is connected to the air inlet of the mechanical separation purifier, and the condensation heat exchanger is installed in the first pipeline; the heating heat exchanger is installed in the exhaust pipeline of the mechanical separation purifier; the condensation heat exchanger and The mechanical separation purifiers are respectively connected with the filters through second pipelines. The invention can effectively reduce the dew point of the outlet gas of the desulfurization tower, reduce the water vapor content in the outlet gas and the concentration of entrained desulfurizer and catalyst particles, recover most of the desulfurizer, reduce the desulfurizer emission loss, reduce operating costs, and at the same time reduce Environmental pollution is avoided; by setting up a heating heat exchanger, the exhaust gas can be prevented from entering an environment where the temperature is lower than the gas temperature, and liquid droplets will immediately condense out to avoid the formation of white mist.

The invention discloses a solar energy selective absorption material utilizing multiple photon heterogeneous structure interface, and its heterogeneous film system structure is: A[T 1 A] n T 2 [BC] m T 3 [DE] k , including: ①Interference absorption layer structure A[T 1 A] n , ② Visible light control film structure [BC] m , ③ Infrared control film [DE] k , ④ Heterostructure interfacial absorbing layer T 2 , T 3 ; wherein, A, B, C, D, E are all dielectric layers, and the periodic coefficients m, n, and k of the film layers are integers with a value ≥ 2. The present invention utilizes the local state and photon band gap effect of multiple photonic crystal heterostructure interfaces through a special photonic heterogeneous dielectric artificial structure composite material to control the propagation state of light waves in different wavelength ranges in the material structure, so that It has a high absorption rate for the visible light-near-infrared wavelength range of 0.3-2μm, but has high reflection characteristics in the mid-to-far infrared region of ≥2.5μm, taking into account the efficient absorption of solar radiation energy and the low emission loss of infrared thermal radiation, which is convenient Improve the light-to-heat conversion efficiency of solar energy.

The invention discloses a power grid optimal carbon energy composite flow obtaining method based on swarm intelligence reinforcement learning. The method comprises the following steps: S1, establishing a multi-object optimal carbon energy composite flow model object function, S2, setting a reward function according to the object function, S3, updating a Q value matrix of each main body according to an eligibility trace, S4, calculating a greed action of each main body, S5, updating an action probability matrix of each main body, S6, randomly selecting a pre-judgment action of each main body at a current state, S7, inputting the multiple main bodies in a coordinative manner, and solving an optimal action of a swarm, S8, performing updating and then obtaining action values after correction, S9, determining a control variable matrix, and performing load flow calculation, and S10, after the load flow calculation, judging whether the Q value matrix is convergent, taking a result obtained by last load flow calculation as a power grid optimal carbon energy composite flow if the Q value matrix is convergent, and returning to the S2 if the Q value matrix is not convergent. The method enables loss of an energy flow and loss of a carbon discharge flow in a power grid to reach minimums; and the good global optimization capability is guaranteed, and the convergence speed of an algorithm is obviously improve at the same time.

The present invention relates to an ultraviolet lamp comprising a glass shell and an electrode fixed on one or more ends of the lamp, where each electrode is a coiled wire with a hollow conical shape. The hollowed conical structure of the electrode reduces the thermal capacity of the electrode as compared with other types of electrodes of the same mass, makes the lamp start quicker, and decreases the emission loss of the electrode when the glow discharge is transformed to an arc discharge. The lamp of the present invention has a wide electrode surface area, such that the loads on each point of the emissive surface are equally distributed, thus decreasing the electron scattering and dispersion, and allowing the lamp to resist the impact from positive ions. Due to the shape and structure of the electrode, the lamp of the present invention has increased efficiency and emitting ability, and allows for a longer lasting lamp.