CN210325692U - Ultraviolet generating device - Google Patents

Abstract

The utility model relates to an ultraviolet generating device, it adds in current ultraviolet lamp's centre and establishes the overcurrent pipe, and the overcurrent pipe passes from the lamp body is partly, and ultraviolet ray direct radiation is to working medium, plates the reflectance coating at the surface of lamp body, and in the ultraviolet reflection with external radiation was to the overcurrent pipe, further strengthened ultraviolet intensity, and working medium furthest radiation distance only is the radius of overcurrent pipe in the overcurrent pipe, and radiant intensity is high, and the homogeneity is good. The overcurrent tube is a part of the lamp body and also acts as a medium conveying tube, and two ends of the overcurrent tube are connected with the medium conveying tube to completely realize electrical isolation. The ultraviolet transmission area on the inner wall of the overflow pipe is in a smooth straight pipe shape and is completely isolated from electricity, so that automatic cleaning is convenient to realize.

Description

Ultraviolet generating device

Technical Field

The utility model belongs to the technical field of ultraviolet disinfection, concretely relates to ultraviolet generating device.

Background

Ultraviolet rays are rays of sunlight having a wavelength of 10 to 400 nanometers (nm), and can be classified into 3 kinds of UVA (ultraviolet A, wavelength of 320 to 400 nm, long wave), UVB (wavelength of 280 to 320 nm, medium wave), and UVC (wavelength of 100 to 280 nm, short wave). The existing ultraviolet lamp mainly comprises: ultraviolet high-frequency electrodeless lamps, ultraviolet low-frequency electrodeless lamps, ultraviolet metal halide lamps, cold cathode ultraviolet germicidal lamps, hot cathode ultraviolet lamps (common medical ultraviolet lamps with filaments), ultraviolet low-pressure mercury lamps, ultraviolet medium-pressure mercury lamps, ultraviolet high-pressure mercury lamps and the like, which have different spectral lines and applications, but have the common characteristic that the lamps are all tubular or bubble-shaped and radiate ultraviolet rays outwards. In many applications, it is desirable to collect uv screens for use again, for example: the flow-through uv sterilizer shown in fig. 13 requires a glass sleeve 200 for water insulation to be installed outside the uv lamp 100, a stainless steel can 300 to be installed outside the sleeve, and water introduced through an inlet 400 and discharged from an outlet 500 for sterilization to flow between the can and the sleeve. Because the glass sleeve is additionally arranged, ultraviolet rays are attenuated for the second time, pollutants are attached to the outer part of the lamp tube and the inner and outer parts of the glass sleeve along with the increase of time, and particularly, the outer part of the glass sleeve is contacted with water, so that the pollutants are more serious, and the cleaning and the clearing are inconvenient. Therefore, the sterilization effect of ultraviolet rays is greatly reduced, and the related problems exist in various fields such as air sterilization, industrial deodorization, UV curing and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide an ultraviolet generating device which can be suitable for sterilization and disinfection of a conveying medium.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the ultraviolet generating device comprises an ultraviolet lamp and an over-flow tube with openings at two ends, wherein the middle part of the over-flow tube is inserted into the ultraviolet lamp to form a tube-in-tube structure, two ends of the over-flow tube are exposed outside the ultraviolet lamp, a discharge cavity is formed by an interlayer of the over-flow tube and the ultraviolet lamp, and inert gas is filled in the discharge cavity.

As some embodiments of the utility model, the ultraviolet lamp includes electrode and outer tube, the outer pipe box is established on the overflow pipe, its both ends with the periphery sealing connection of overflow pipe, the overflow pipe with the intermediate layer of outer tube forms the discharge chamber, electrode one end is located in the discharge chamber, the other end is followed draw forth on the outer tube, be equipped with on the outer tube with the blast pipe of discharge chamber intercommunication, the discharge chamber embeds there is liquid mercury, amalgam or metal halide.

As some embodiments of the utility model, the ultraviolet lamp includes filament and outer tube, the outer pipe box is established on the overcurrent pipe, its both ends with the periphery sealing connection of overcurrent pipe, the overcurrent pipe with the intermediate layer of outer tube forms the discharge chamber, the filament includes the tungsten filament and two filament electrodes of being connected with the tungsten filament both ends, the tungsten filament is located the discharge chamber, two filament electrode one end and tungsten filament are connected, and the other end is followed the outer tube is drawn forth, be equipped with on the outer tube with the blast pipe of discharge chamber intercommunication, the discharge chamber embeds there is liquid mercury or amalgam.

As some embodiments of the present invention, the ultraviolet lamp includes an outer tube, a magnetic material arranged outside the outer tube and a coil wound on the magnetic material, the outer sleeve is arranged on the flow-through tube, both ends of the outer sleeve are connected with the periphery of the flow-through tube in a sealing manner, the flow-through tube and the interlayer of the outer tube form a discharge cavity, and the outer tube is provided with an amalgam tube.

As some embodiments of the utility model, the ultraviolet lamp includes outer tube and communicating pipe, the overflow pipe both ends opening, the outer pipe box is arranged in the overflow pipe is outside, just the both ends of outer tube and the periphery sealing connection of overflow pipe, the outer tube with communicating pipe is linked together and forms the discharge chamber, the outer tube and/or be equipped with the amalgam pipe on the lateral wall of communicating pipe, the outer tube and/or magnetic material has been put to the cover on communicating pipe, the winding has the coil on the magnetic material.

As some embodiments of the present invention, any one of the following two structures is included:

the structure I is as follows: the device comprises more than two overflowing pipes, wherein two ends of each overflowing pipe are opened, an outer pipe is sleeved outside each overflowing pipe, two ends of each outer pipe are hermetically connected with the periphery of each overflowing pipe, the more than two outer pipes are communicated through a communicating pipe, the outer pipes are communicated with the communicating pipes to form a discharge cavity, an amalgam pipe is arranged on the side wall of each outer pipe and/or the side wall of each communicating pipe, a magnetic material is sleeved on each outer pipe and/or each communicating pipe, and a coil is wound on each magnetic material;

the structure II is as follows: the gas discharge device comprises a flow pipe, openings are formed in two ends of the flow pipe, an outer pipe is sleeved outside the flow pipe, two ends of the outer pipe are connected with the periphery of the flow pipe in a sealing mode, at least one communicating pipe is arranged in the circumferential direction of the outer pipe, two ends of the communicating pipe are communicated with the outer pipe respectively to form a discharge cavity, gas is filled in the discharge cavity, the outer pipe and/or an amalgam pipe is arranged on the side wall of the communicating pipe, a magnetic material is sleeved on the outer pipe and/or the communicating pipe, and a coil is wound on the magnetic material.

As some embodiments of the present invention, any one of the following two structures is included:

structure a: the device comprises two overflowing pipes arranged in parallel, wherein two ends of each overflowing pipe are provided with openings, an outer pipe is sleeved outside each overflowing pipe, two ends of each outer pipe are connected with the periphery of each overflowing pipe in a sealing mode, the two outer pipes are communicated through two communicating pipes, the outer pipes are communicated with the communicating pipes to form a discharge cavity, amalgam pipes are arranged on the side walls of the outer pipes and/or the communicating pipes, magnetic materials are sleeved on the outer pipes and/or the communicating pipes, and coils are wound on the magnetic materials.

Structure B: including an overflow pipe, overflow pipe both ends opening, the outside cover of overflow pipe is equipped with an outer tube, the both ends of outer tube with the periphery sealing connection of overflow pipe, outer tube circumference equipartition has three communicating pipe, every the both ends of communicating pipe all with the outer tube intercommunication forms the discharge chamber, be filled with inert gas in the discharge chamber, the outer tube and/or be equipped with the amalgam pipe on the lateral wall of communicating pipe, the outer tube and/or magnetic material has been put to the cover on communicating pipe, the winding has the coil on the magnetic material.

As some embodiments of the invention, the outer tube is provided with a reflective coating inside or outside the outer tube.

As some embodiments of the present invention, the ultraviolet lamp is provided with an exhaust pipe.

As some embodiments of the present invention, the inert gas is argon, krypton, or argon/krypton mixed gas.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

the utility model provides an ultraviolet generating device produces the ultraviolet ray in the intermediate layer of outer tube and overflow pipe, radiates to the intraductal fluid or medium that overflows, can realize the surface disinfection and the ultraviolet curing to fluid and medium, product in the specially adapted flowing water, powder, granule and other on-line production.

The utility model provides an ultraviolet generating device, the structure is ingenious, and working medium is near apart from the radiation source, the radiation is even, and the electrical isolation of being convenient for, convenient maintenance and clearance have effectively prolonged life.

The utility model discloses a set up magnetic material and coil, can repeat the start-up in the twinkling of an eye, life is about 10 ten thousand hours, and is efficient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the structure of an ultraviolet generating apparatus according to embodiment 1;

FIG. 2 is a schematic structural view of an ultraviolet generating apparatus according to embodiment 2;

FIG. 3 is a schematic sectional view of an ultraviolet generating apparatus according to example 2;

FIG. 4 is a schematic structural view of an ultraviolet generating apparatus according to embodiment 3;

FIG. 5 is a schematic structural view of an ultraviolet generating apparatus according to embodiment 4;

FIG. 6 is a schematic structural view of an ultraviolet generating apparatus according to embodiment 5;

FIG. 7 is a schematic sectional view of an ultraviolet generating apparatus according to example 5;

FIG. 8 is a schematic structural view of an ultraviolet generating apparatus according to embodiment 6;

FIG. 9 is a schematic view showing the structure of an electrode in example 6;

FIG. 10 is a schematic view of the structure of an ultraviolet generating apparatus according to example 7;

FIG. 11 is a schematic view showing the structure of a filament in example 7;

FIG. 12 is a schematic view of the structure of an ultraviolet generating apparatus according to embodiment 8;

FIG. 13 is a schematic view of the structure of an ultraviolet generating apparatus according to example 9;

FIG. 14 is a schematic structural diagram of a related art UV generator;

in the drawings:

flow tube 1, discharge chamber 2, outer tube 3, electrode 31, magnetic material 32, coil 33, amalgam tube 34, communicating tube 4, exhaust tube 35, holder 36, filament 37, tungsten filament 371, filament electrode 372, ultraviolet lamp 100, glass sleeve 200, stainless steel can 300, 400 inlet, 500 outlet.

Detailed Description

The utility model discloses ultraviolet generating device adds the scheme of establishing "overcurrent pipe" in the centre of the current ultraviolet lamp who mentions in the background art, and "overcurrent pipe" passes from the lamp body is partly, and ultraviolet ray direct radiation is to working medium, plates the reflectance coating at the surface of lamp body, and in reflecting to "overcurrent pipe" the ultraviolet ray of outside radiation, further strengthen ultraviolet intensity, and working medium is the radius that the furthest radiation distance is only "overcurrent pipe" in "overcurrent pipe", and radiant intensity is high, and the homogeneity is good. The over-flow tube is not only a part of the lamp body, but also acts as a medium conveying tube, and two ends of the over-flow tube are connected with the medium conveying tube to completely realize electrical isolation. The ultraviolet transmission area on the inner wall of the 'flow tube' is in a smooth straight tube shape, and is completely isolated from electricity, so that automatic cleaning is convenient to realize.

The ultraviolet lamp tube structure comprises an ultraviolet lamp and an over-flow tube 1 with openings at two ends, wherein the middle part of the over-flow tube 1 is inserted into the ultraviolet lamp to form a tube-in-tube structure, two ends of the over-flow tube 1 are exposed to the outside of the ultraviolet lamp, and a discharge cavity 2 is formed by an interlayer of the over-flow tube 1 and the ultraviolet lamp.

The utility model discloses in, the ultraviolet lamp includes electrode 31 and outer tube 3, 3 covers of outer tube are established on the overflow tube 1, its both ends with the periphery sealing connection of overflow tube 1, overflow tube 1 with the intermediate layer of outer tube 3 forms discharge chamber 2, electrode 31 one end is located in discharge chamber 2, the other end is followed draw forth on the outer tube 3. The electrode is a tungsten-molybdenum electrode, and the ultraviolet lamp is provided with an exhaust pipe 35 for exhausting gas in the discharge cavity 2, and filling inert gas and adding liquid mercury, amalgam or metal halide and other substances commonly added in the prior art.

The utility model discloses in, the ultraviolet lamp includes filament 37 and outer tube 3, 3 covers of outer tube are established on the overflow tube 1, its both ends with the periphery sealing connection of overflow tube 1, overflow tube 1 with the intermediate layer of outer tube 3 forms discharge chamber 2, filament 37 includes tungsten filament 371 and two filament electrodes 372 who is connected with tungsten filament 371 both ends, the tungsten filament is located discharge chamber 2 is interior, two filament electrodes 372 one end and tungsten filament 371 are connected, and the other end is followed outer tube 3 is drawn forth, be equipped with on the outer tube 3 with the blast pipe 35 of discharge chamber 2 intercommunication, discharge chamber 2 embeds there is the material of adding often among the prior art such as liquid mercury or amalgam.

The utility model discloses in, the ultraviolet lamp include the outer tube 3, set up in 3 outside magnetic material 32 of outer tube and winding are in coil 33 on the magnetic material 32, 3 covers of outer tube are established on the flow tube 1, its both ends with the periphery sealing connection of flow tube 1, flow tube 1 with the intermediate layer of outer tube 3 forms discharge chamber 2, be equipped with amalgam pipe 34 on the outer tube 3. The magnetic material 32 may be a magnetic strip or a magnetic ring, and the coil 33 is wound around the magnetic material 32 along the circumferential direction of the outer tube. The amalgam tube 34 may be used for venting, during manufacture, by evacuating the gas from the discharge chamber, filling with an inert gas, placing the indium mesh and amalgam pellet, and sealing to form the amalgam tube. As another possible embodiment, the exhaust pipe 35 may be separately provided.

The utility model discloses in, the position relation and the connection relation of overflow pipe 1, outer tube 3 and communicating pipe 4 are as follows: the outer pipe 3 is sleeved outside the overflow pipe 1, and two ends of the outer pipe and the overflow pipe 1 are sealed by fusion, so that an interlayer between the outer pipe 3 and the overflow pipe 1 becomes a closed space. The communicating pipe 4 is arranged on the outer pipe 3 and is communicated with the outer pipe 3 to form a closed loop, and the implementation mode is as follows: one, overflow pipe 1 and outer tube 3 are one or more, communicate through communicating pipe 4 between a plurality of outer tubes 3, make outer tube 3 and communicating pipe 4 form discharge chamber 2, for example: the discharge chamber comprises a mouth-shaped closed chamber formed by two outer tubes 3 and two communicating tubes 4, a mouth-shaped closed chamber formed by one outer tube 3 and one U-shaped communicating tube 4, namely a discharge chamber 2, a circular closed chamber formed by one outer tube 3 and one communicating tube 4 and the like; secondly, the overflow pipe 1 is one, the outer pipe 3 is also one, the communicating pipes 4 are multiple, the communicating pipes 4 are arranged along the circumferential direction of the outer pipe 3, two ends of the communicating pipes 4 are respectively communicated with the outer pipe 3 to form a discharge cavity 2, the discharge cavity 2 is filled with inert gas, and the gas is argon gas, krypton gas or mixed gas of argon gas/krypton gas.

In the present invention, if the amalgam pipe 34 is installed as necessary, the amalgam pipe 34 can be disposed on the outer pipe 3 or on the communication pipe 4, and can be one or more, for example: only one amalgam pipe 34 is provided on one communication tube 3, one amalgam pipe 34 is provided on each communication tube 3, one amalgam pipe 34 is provided on the outer tube 3, and two amalgam pipes 34 are provided on the same outer tube 3, the amalgam pipes 34 being distributed on both sides of the outer tube 3. The amalgam tube 34 may be used for venting, during manufacture, by evacuating the gas from the discharge chamber, filling with an inert gas, placing the indium mesh and amalgam pellet, and sealing to form the amalgam tube.

The utility model discloses in, can also be equipped with blast pipe 35, blast pipe 35 can set up also can set up on communicating pipe 3 on outer tube 3, can be one or more, for example: one exhaust pipe 35 is provided on one communication pipe 3, one exhaust pipe 35 is provided on each communication pipe 3, and one exhaust pipe 35 is provided on the outer pipe 3.

The utility model discloses in, magnetic material 32 can be formed for two semi-ring butt joints, and magnetic material 32 can overlap and put on outer tube 3, also can overlap and put on communicating pipe 4, and magnetic material 32 can be 1 also can be a plurality of, for example, a magnetic ring or a plurality of magnetic ring overlap and put on an outer tube 3, a magnetic ring or a plurality of magnetic ring overlap and put on a communicating pipe 4, and a plurality of communicating pipes 4 go up the cover and are equipped with one or a plurality of magnetic material 32. Preferably, the magnetic materials 32 are provided in two groups, two groups are respectively provided on the two outer tubes 3 or the two communication tubes 4, and each group is two or more than two.

The utility model discloses in, be provided with holder 36 on the magnetic material 32, the holder constitutes for two component cooperations, and the component is semi-circular, and one time is provided with thinks complex draw-in groove and pothook, and one side is equipped with the connecting bolt hole for fix in equipment, fix a position.

The utility model discloses in, be equipped with reflective coating in the outer tube or outside, can conveniently collect the ultraviolet, reduce the radiation dissipation.

In order to make the objects, technical solutions and advantages of the present invention clearer, the following description of the present invention with reference to specific embodiments is given for clarity and completeness.

Example 1

As shown in fig. 1, the ultraviolet generating device comprises two parallel over-flow tubes 1, wherein two ends of the over-flow tubes 1 are open, for the fluid to pass through the overflow pipes 1, each overflow pipe 1 is sleeved with an outer pipe 3, the length of the outer tube 3 is less than that of the over-flow tube 1, two ends of the outer tube 3 are hermetically welded with the periphery of the over-flow tube 1, the two outer tubes 3 are communicated through two communicating tubes 4, the two outer tubes 3 are communicated with the two communicating tubes 4 to form a mouth-shaped discharge cavity 2, the discharge chamber 2 is filled with inert gas, the side walls of the two communicating pipes 4 are respectively provided with an amalgam pipe 34, an exhaust pipe 35 is arranged on one of the communication pipes 4, the end parts of the amalgam pipe 34 and the exhaust pipe 35 are sealed by melting, and an indium net and an amalgam pill are arranged in the amalgam pipe 34. Two magnetic materials 32 are respectively sleeved on the two communicating pipes 4, the coil 5 is wound on the magnetic materials 32, the magnetic materials 32 are formed by splicing two semi-ring structures, and the two semi-ring structures are clamped and fixed through a clamping piece 36.

Example 2

As shown in fig. 2 and 3, an ultraviolet generating device comprises two parallel flow tubes 1, wherein the flow tubes 1 are open at two ends, for the fluid to pass through the overflow pipes 1, each overflow pipe 1 is sleeved with an outer pipe 3, the length of the outer tube 3 is less than that of the over-flow tube 1, two ends of the outer tube 3 are hermetically welded with the periphery of the over-flow tube 1, the two outer tubes 3 are communicated through two communicating tubes 4, the two outer tubes 3 are communicated with the two communicating tubes 4 to form a mouth-shaped discharge cavity 2, the discharge chamber 2 is filled with inert gas, the side walls of the two communicating pipes 4 are respectively provided with an amalgam pipe 34, an exhaust pipe 35 is arranged on one of the communication pipes 4, the end parts of the amalgam pipe 34 and the exhaust pipe 35 are sealed by melting, and an indium net and an amalgam pill are arranged in the amalgam pipe 34. Two magnetic materials 32 are respectively sleeved on the two outer tubes 3, the coils 5 are wound on the magnetic materials 32, the magnetic materials 32 are formed by splicing two semi-ring structures, and the two semi-ring structures are clamped and fixed through clamping parts 36.

Example 3

As shown in fig. 4, an ultraviolet generating device comprises two flow tubes 1 arranged in parallel, wherein two ends of the flow tube 1 are open and used for fluid to pass through the flow tube 1, an outer tube 3 is sleeved outside the flow tube 1, the length of the outer tube 3 is smaller than that of the flow tube 1, two ends of the outer tube 3 are hermetically welded with the periphery of the flow tube 1, the outer tube 3 is communicated with the outer tube 3 through two communicating tubes 4, the outer tube 3 is communicated with the two communicating tubes 4 to form a mouth-shaped discharge cavity 2, the discharge cavity 2 is filled with inert gas, one of the amalgam tubes 34 and an exhaust tube 35 are arranged on the side wall of the communicating tube 4, the end portions of the amalgam tube 34 and the exhaust tube 35 are subjected to sealing treatment, and an indium net and an amalgam pill are arranged in the amalgam tube 34. The middle parts of the two communication pipes 4 are respectively sleeved with a magnetic material 32, the coil 5 is wound on the magnetic material 32, the magnetic material 32 is formed by splicing two semi-ring structures, and the two semi-ring structures are clamped and fixed through a clamping piece 36.

Example 4

As shown in fig. 5, an ultraviolet generating device comprises two flow tubes 1 arranged in parallel, wherein two ends of the flow tube 1 are open and used for passing fluid through the flow tube 1, an outer tube 3 is sleeved outside the flow tube 1, the length of the outer tube 3 is smaller than that of the flow tube 1, two ends of the outer tube 3 are hermetically welded with the periphery of the flow tube 1, the outer tube 3 is communicated with the outer tube 3 through two communicating tubes 4, the outer tube 3 is communicated with the two communicating tubes 4 to form a mouth-shaped discharge cavity 2, the discharge cavity 2 is filled with inert gas, one of the amalgam tubes 34 and an exhaust tube 35 are arranged on the side wall of the communicating tube 4, the end portions of the amalgam tube 34 and the exhaust tube 35 are subjected to sealing treatment, and an indium net and an amalgam pill are arranged in the amalgam tube 34. The middle parts of the two outer tubes 3 are respectively sleeved with a magnetic material 32, the coil 5 is wound on the magnetic material 32, the magnetic material 32 is formed by splicing two semi-ring structures, and the two semi-ring structures are clamped and fixed through a clamping piece 36.

Example 5

As shown in fig. 6 and 7, an ultraviolet generating device comprises a flow pipe 1, two ends of the flow pipe 1 are open and used for passing fluid through the flow pipe 1, an outer pipe 3 is sleeved outside the flow pipe 1, the length of the outer pipe 3 is smaller than that of the flow pipe 1, two ends of the outer pipe 3 are hermetically welded with the periphery of the flow pipe 1, three communicating pipes 4 are uniformly distributed in the circumferential direction of the outer pipe 3, each communicating pipe 4 is communicated with the outer pipe 3 to form a discharge chamber 2, an inert gas is filled in the discharge chamber 2, an amalgam pipe 34 is arranged on the side wall of each communicating pipe 4, and an indium net and an amalgam pill are arranged in the amalgam pipe 34. Two magnetic materials 32 are sleeved on each communication pipe 4, the two magnetic materials 32 are distributed on two sides of each communication pipe 4, coils 5 are wound on the magnetic materials 32, the magnetic materials 32 are formed by splicing two semi-ring structures, and the two semi-ring structures are clamped and fixed through clamping pieces 36.

Example 6

As shown in fig. 8 and 9, an ultraviolet generating device comprises an overflow pipe 1, two ends of the overflow pipe 1 are open and used for fluid to pass through the overflow pipe 1, an outer pipe 3 is sleeved outside the overflow pipe 1, the length of the outer pipe 3 is smaller than that of the overflow pipe 1, two ends of the outer pipe 3 are hermetically welded with the periphery of the overflow pipe 1, a discharge cavity 2 is formed by a sealed interlayer between the outer pipe 3 and the overflow pipe 1, two electrodes 31 are arranged on the outer pipe 3, the electrodes are tungsten and molybdenum electrodes, one end of each electrode 31 is located in the discharge cavity 2, and the other end of each electrode 31 is led out from the outer pipe 3. An exhaust tube 35 is provided in the outer tube 3 and the discharge chamber 2 is filled with inert gas as well as liquid mercury, amalgam or metal halide.

Example 7

As shown in fig. 10, an ultraviolet generating device comprises an overflow pipe 1, wherein both ends of the overflow pipe 1 are open, used for fluid to pass through the flow pipe 1, the flow pipe 1 is sleeved with an outer pipe 3, the length of the outer pipe 3 is less than that of the flow pipe 1, the two ends of the outer tube 3 are sealed and welded with the periphery of the over-flow tube 1, a sealed interlayer between the outer tube 3 and the over-flow tube 1 forms a discharge cavity 2, two filaments 37 are arranged on the outer tube 3, as shown in fig. 11, the filament 37 includes a tungsten filament 371 and two filament electrodes 372 connected to both ends of the tungsten filament 371, the tungsten filament is positioned in the discharge cavity 2, one end of each of the two filament electrodes 372 is connected with the tungsten filament 371, the other end is led out from the outer tube 3, an exhaust pipe 35 communicated with the discharge cavity 2 is arranged on the outer pipe 3, and liquid mercury or amalgam is arranged in the discharge cavity 2.

Example 8

As shown in fig. 12, an ultraviolet generating device comprises a flow tube 1, the flow tube 1 has two open ends for passing fluid through the flow tube 1, an outer tube 3 is sleeved outside the flow tube 1, the length of the outer tube 3 is smaller than that of the flow tube 1, the two ends of the outer tube 3 are hermetically welded with the periphery of the flow tube 1, a sealed interlayer between the outer tube 3 and the flow tube 1 forms a discharge chamber 2, a magnetic material 32 is arranged outside the outer tube 3, the magnetic material 32 is of a ring structure and is sleeved on the outer tube 3, a coil 33 is wound on the magnetic material 32, the coil 33 is wound along the periphery of the outer tube 3, in this embodiment, an amalgam tube 34 is arranged on the outer tube 3, the amalgam tube 34 can be used for exhausting, during the manufacturing process, the gas is evacuated from the discharge chamber, and filled with inert gas, placing indium mesh and amalgam pill, and sealing to form amalgam tube. As another possible embodiment, the exhaust pipe 35 may be separately provided.

Example 9

As shown in fig. 13, an ultraviolet generating device comprises a flow tube 1, wherein two ends of the flow tube 1 are open and used for passing fluid through the flow tube 1, an outer tube 3 is sleeved outside the flow tube 1, the length of the outer tube 3 is smaller than that of the flow tube 1, two ends of the outer tube 3 are hermetically welded with the periphery of the flow tube 1, a sealed interlayer between the outer tube 3 and the flow tube 1 forms a discharge chamber 2, a magnetic material 32 is arranged outside the outer tube 3, the magnetic material 32 is a magnetic strip and sleeved on the outer tube 3, a coil 33 is wound on the magnetic material 32, the coil 33 is wound along the peripheral direction of the outer tube 3, in this embodiment, an amalgam tube 34 is arranged on the outer tube 3, the amalgam tube 34 can be used for exhausting, in the manufacturing process, gas is vacuumized from the discharge chamber, inert gas is filled in, indium mesh and amalgam pill are put in, and then sealed to form an amalgam tube. As another possible embodiment, the exhaust pipe 35 may be separately provided.

It should be understood by those skilled in the art that the ultraviolet generating device provided by the present invention can be used in combination with some cooperating devices, including but not limited to ballasts, etc., in practice, and the connection of the above circuits and circuits is well known to those skilled in the art and will not be described herein.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims (10)

1. The ultraviolet generating device is characterized by comprising an ultraviolet lamp and an over-flow tube (1) with openings at two ends, wherein the middle part of the over-flow tube (1) is inserted into the ultraviolet lamp to form a tube-in-tube structure, two ends of the over-flow tube (1) are exposed to the outside of the ultraviolet lamp, a discharge cavity (2) is formed by the over-flow tube (1) and an interlayer of the ultraviolet lamp, and inert gas is filled in the discharge cavity (2).

2. The ultraviolet generating device according to claim 1, wherein the ultraviolet lamp comprises an electrode (31) and an outer tube (3), the outer tube (3) is sleeved on the over-flow tube (1), two ends of the outer tube are hermetically connected with the periphery of the over-flow tube (1), a discharge cavity (2) is formed by an interlayer of the over-flow tube (1) and the outer tube (3), one end of the electrode (31) is located in the discharge cavity (2), the other end of the electrode is led out from the outer tube (3), an exhaust pipe (35) communicated with the discharge cavity (2) is arranged on the outer tube (3), and liquid mercury, amalgam or metal halide is arranged in the discharge cavity (2).

3. The ultraviolet generating device according to claim 1, characterized in that the ultraviolet lamp comprises a filament (37) and an outer tube (3), the outer tube (3) is sleeved on the flow tube (1), two ends of the outer tube are hermetically connected with the periphery of the flow tube (1), the flow tube (1) and an interlayer of the outer tube (3) form a discharge cavity (2), the filament (37) comprises a tungsten filament (371) and two filament electrodes (372) connected with two ends of the tungsten filament (371), the tungsten filament is located in the discharge cavity (2), two filament electrodes (372) are connected with one end of the tungsten filament (371), the other end of the filament is led out from the outer tube (3), an exhaust pipe (35) communicated with the discharge cavity (2) is arranged on the outer tube (3), and liquid mercury or amalgam is arranged in the discharge cavity (2).

4. The ultraviolet generating device according to claim 1, characterized in that the ultraviolet lamp comprises an outer tube (3), a magnetic material (32) arranged outside the outer tube (3) and a coil (33) wound on the magnetic material (32), the outer tube (3) is sleeved on the flow-through tube (1), two ends of the outer tube are hermetically connected with the periphery of the flow-through tube (1), a discharge cavity (2) is formed by the interlayer of the flow-through tube (1) and the outer tube (3), and an amalgam tube (34) is arranged on the outer tube (3).

5. The ultraviolet generating device according to claim 1, characterized in that the ultraviolet lamp comprises an outer tube (3) and a communicating tube (4), the two ends of the flow tube (1) are open, the outer tube (3) is sleeved outside the flow tube (1), the two ends of the outer tube (3) are hermetically connected with the periphery of the flow tube (1), the outer tube (3) and the communicating tube (4) are communicated to form a discharge chamber (2), an amalgam tube (34) is arranged on the side wall of the outer tube (3) and/or the communicating tube (4), a magnetic material (32) is sleeved on the outer tube (3) and/or the communicating tube (4), and a coil (33) is wound on the magnetic material (32).

6. An ultraviolet generating device according to claim 5, characterized by comprising either one of the following two structures:

the structure I is as follows: the discharge tube comprises more than two overflow tubes (1), two ends of each overflow tube (1) are opened, an outer tube (3) is sleeved outside each overflow tube (1), two ends of each outer tube (3) are hermetically connected with the periphery of each overflow tube (1), more than two outer tubes (3) are communicated through a communication tube (4), the outer tubes (3) are communicated with the communication tubes (4) to form discharge chambers (2), amalgam tubes (34) are arranged on the side walls of the outer tubes (3) and/or the communication tubes (4), magnetic materials (32) are sleeved on the outer tubes (3) and/or the communication tubes (4), and coils (33) are wound on the magnetic materials (32);

the structure II is as follows: the novel discharge tube comprises a flow passing tube (1), openings are formed in two ends of the flow passing tube (1), an outer tube (3) is sleeved outside the flow passing tube (1), two ends of the outer tube (3) are connected with the periphery of the flow passing tube (1) in a sealing mode, at least one communicating tube (4) is arranged in the circumferential direction of the outer tube (3), two ends of the communicating tube (4) are communicated with the outer tube (3) respectively to form a discharge cavity (2), inert gas is filled in the discharge cavity (2), an amalgam tube (34) is arranged on the side wall of the outer tube (3) and/or the communicating tube (4), a magnetic material (32) is sleeved on the outer tube (3) and/or the communicating tube (4), and a coil (33) is wound on the magnetic material (32).

7. The ultraviolet generating device according to claim 6, characterized by comprising any one of the following two structures:

structure a: the device comprises two overflowing pipes (1) which are arranged in parallel, two ends of each overflowing pipe (1) are opened, an outer pipe (3) is sleeved outside each overflowing pipe (1), two ends of each outer pipe (3) are hermetically connected with the periphery of each overflowing pipe (1), the two outer pipes (3) are communicated through two communicating pipes (4), the outer pipes (3) are communicated with the communicating pipes (4) to form a discharge cavity (2), amalgam pipes (34) are arranged on the side walls of the outer pipes (3) and/or the communicating pipes (4), a magnetic material (32) is sleeved on the outer pipes (3) and/or the communicating pipes (4), and coils (33) are wound on the magnetic material (32);

structure B: including one overflow pipe (1), overflow pipe (1) both ends opening, the outside cover of overflow pipe (1) is equipped with an outer tube (3), the both ends of outer tube (3) with the periphery sealing connection of overflow pipe (1), outer tube (3) circumference equipartition has three communicating pipe (4), every the both ends of communicating pipe (4) all with outer tube (3) intercommunication forms discharge chamber (2), be filled with inert gas in discharge chamber (2), outer tube (3) and/or be equipped with amalgam pipe (34) on the lateral wall of communicating pipe (4), outer tube (3) and/or magnetic material (32) have been put to the cover on communicating pipe (4), the winding has coil (33) on magnetic material (32).

8. Uv-generating device according to claim 2, characterized in that the outer tube (3) is provided with a reflective coating inside or outside.

9. Uv generating device according to claim 1, characterized in that the uv lamp is provided with an exhaust duct (35).

10. The uv generating apparatus according to claim 1, wherein the inert gas is argon, krypton or a mixture of argon and krypton.

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