CN212006200U - Heating pipe assembly - Google Patents

Abstract

The utility model discloses a heating pipe assembly has solved the slow problem of heating pipe assembly rate of heating, and the technical scheme who solves this problem mainly includes carbon fiber heating pipe, and carbon fiber heating pipe includes first hyaline tube and sends the carbon fiber that infrared radiation carries out the heating, and the carbon fiber seals in first hyaline tube, the outside cover of first hyaline tube is equipped with the outer tube, is equipped with the zone of heating that supplies water flow between outer tube and the first hyaline tube, and including the zone of heating wrapped up the carbon fiber, the outer tube was equipped with the outer tube water inlet and the outer tube delivery port with the zone of heating intercommunication. The utility model discloses the liquid that flows in the well heating layer wraps up in the outside of first hyaline tube, can fully absorb the infrared radiation that the carbon fiber sent, avoids infrared radiation directly to jet out and extravagant, guarantees that the liquid that the outer tube delivery port flows has completely boiled, satisfies the user and drinks the drinking water demand of heating promptly.

Description

Heating pipe assembly

Technical Field

The utility model relates to a small household electrical appliances technical field, especially a heating pipe assembly.

Background

The heating element of the household appliance is generally an electric heating wire heating pipe, one part of electric energy is converted into required heat energy, the other part of the electric energy is converted into light energy, and the heat energy is directly wasted, so that the defects of low overall heating efficiency, low heating speed, uneven heating and the like exist, and particularly, the electric heating wire heating pipe is applied to the interior of a water dispenser, water cannot be boiled due to the low heating speed in the early heating period, and the drinking water safety and sanitation of a user are influenced.

With the progress of science and technology, carbon fibers with high heating speed are applied to a heating pipe, the carbon fibers mainly emit far infrared radiation with the wavelength of 8-14 microns, and the radiation can be absorbed by water molecules in air and generates a resonance friction heat effect, so that the carbon fiber heating pipe has the characteristics of rapid temperature rise, small thermal hysteresis and uniform heating. Particularly, the electrothermal conversion rate of the carbon fiber heating pipe can reach more than 98%, so that the carbon fiber heating pipe is applied to the water dispenser and becomes a development trend, and the requirement of a user on quick heating can be met. But the existing carbon fiber heating pipe is mainly placed in a water container, and the carbon fiber heating pipe heats liquid, but the liquid in the water container can be drunk only after being heated and boiled, and the demand of drinking water which is instantly heated can not be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims to reach provides a heating pipe assembly, and rate of heating is fast, the heating is even, can satisfy the drinking water demand that the user drunk promptly and heat promptly.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a heating pipe assembly, includes the carbon fiber heating pipe, the carbon fiber heating pipe includes first hyaline tube and sends the carbon fiber that infrared radiation carries out the heating, and the carbon fiber seals in first hyaline tube, the outside cover of first hyaline tube is equipped with the outer tube, is equipped with the zone of heating that supplies water to flow between outer tube and the first hyaline tube, and including the zone of heating wrapped up the carbon fiber, the outer tube was equipped with outer tube water inlet and the outer tube delivery port with the zone of heating intercommunication.

Further, the outer tube is a nontransparent tube which prevents infrared radiation generated by the carbon fiber from transmitting.

Further, the outer tube comprises a second transparent tube, and a reflecting layer for reflecting infrared radiation to the heating layer is arranged on the outer side of the second transparent tube.

Furthermore, the first transparent pipe and the second transparent pipe are both quartz pipes, and two ends of the second transparent pipe are both welded with the outer side surface of the first transparent pipe; quartz connecting pipes are arranged at the water inlet and the water outlet of the outer pipe and are welded with the second transparent pipe into a whole;

or the reflecting layer is a metal foil wrapped on the outer side of the second transparent tube;

or the reflecting layer is a coating film or a coating sprayed on the outer side surface of the second transparent tube.

Furthermore, the outer pipe water inlet and the outer pipe water outlet are both arranged on the pipe wall of the outer pipe, the length of the carbon fiber in the axial direction is L1, the maximum distance between the outer pipe water inlet and the outer pipe water outlet in the axial direction is L2, and the distance between L1 and L2 is less than or equal to 20 mm; or the thickness S of the heating layer in the radial direction is 0.2 mm-5 mm.

Further, the difference of the tube wall thickness of the first transparent tube and the outer tube is less than 0.5 mm; and/or the thickness of the tube wall of the first transparent tube and the thickness of the tube wall of the outer tube are both 0.8 mm-3 mm.

Furthermore, the heating pipe assembly further comprises a preheating heating pipe for preheating water, and a water outlet of the preheating heating pipe is communicated with a water inlet of the outer pipe.

Furthermore, the preheating heating pipe is a nano-film heating pipe, the nano-film heating pipe comprises a quartz pipe body for supplying water to flow and an electrode sleeved outside the quartz pipe body, the nano-film for heating liquid in the quartz pipe body is sprayed on the outer side surface of the quartz pipe body, and the nano-film is in electrical contact with the electrode.

Further, the both ends of quartzy body are overlapped respectively and are equipped with water inlet hose connector and water outlet hose connector, and nanometer membrane is located between water inlet hose connector and the water outlet hose connector, and nanometer membrane heating pipe is through water outlet hose connector and outer tube water inlet intercommunication, and water inlet hose connector and water outlet hose connector's the outside all is equipped with the ferrule.

Furthermore, the preheating heating pipe is an electric heating wire heating pipe, the electric heating wire heating pipe comprises a quartz pipe body for supplying water to flow and a metal heating wire positioned in an inner cavity of the quartz pipe body, and a water outlet of the quartz pipe body is communicated with a water inlet of the outer pipe.

After the technical scheme is adopted, the utility model has the advantages of as follows:

1. at first, the infrared radiation that the carbon fiber sent is from first hyaline tube effluvium, and in the liquid of jet-propelled zone of heating, liquid absorption infrared radiation in the zone of heating and production resonance, the hydrone looks mutual friction of resonance produces the fuel factor, the realization is heated the liquid in the zone of heating, and simultaneously, infrared radiation's penetrability is good, transmission distance is far away, more liquid in the zone of heating can produce resonance, its heat exchange efficiency is high, liquid heating rate is fast, guarantee that the liquid that the outer tube delivery port flows has completely boiled, satisfy the user drink the drinking water demand that heats promptly. Secondly, the outer pipe is sleeved outside the first transparent pipe, so that heat loss is reduced, boiling of liquid in the heating layer is promoted, the liquid flowing in the heating layer is wrapped outside the first transparent pipe, infrared radiation emitted by the carbon fibers can be fully absorbed, and waste caused by direct emission of the infrared radiation is avoided; finally, zone of heating thickness is thin and wraps up outward evenly, no matter be the inlayer liquid of zone of heating or outer liquid homoenergetic heating, whole heating pipe heating is more even promptly to the outer liquid of zone of heating also can boil the boiling, guarantees drinking water health and safety.

2. The nontransparent tube can prevent infrared radiation which is not absorbed by liquid in the heating layer from being emitted out of the outer tube, and waste of the infrared radiation is reduced, so that the liquid in the heating layer can absorb more infrared radiation, and the electric heat conversion efficiency is improved.

3. The reflection layer improves the reflectivity of the outer tube to infrared radiation, reduces the loss of the infrared radiation on the outer tube, is beneficial to fully absorbing the infrared radiation generated by the carbon fiber by flowing liquid, and further ensures the heat exchange efficiency; meanwhile, the reflecting layer is arranged on the outer side of the second transparent tube, so that the reflecting layer is prevented from being in direct contact with liquid with impact force, and the service life of the reflecting layer is ensured.

4. The stability and the light transmissivity of quartz capsule are good, can bear the high temperature environment here, difficult and liquid take place chemical reaction, can guarantee again that infrared radiation can see through first hyaline tube in order to be absorbed by the liquid of zone of heating, and simultaneously, the first hyaline tube of quartz material can adopt the mode of hot melt to be connected as an organic wholely with second hyaline tube and quartz connecting pipe, not only connects reliably, the leakproofness is strong, simplifies the structure of whole heating pipe subassembly moreover, and processing is convenient.

The surface of the metal foil is flat, the reflection effect of the metal foil is good, and meanwhile, the metal foil is soft and can be wrapped outside the second transparent tube relatively, so that the infrared radiation between the second transparent tube and the reflection layer is reduced.

The reflecting layer is a coating film or a coating layer sprayed on the outer side surface of the second transparent tube, no air layer which consumes infrared radiation is arranged between the second transparent tube and the coating layer or the coating layer, and the infrared radiation transmitted out of the tube wall of the second transparent tube can be reflected back to the heating layer again.

5. The outer tube water inlet and the outer tube water outlet are arranged on the tube wall of the outer tube, so that the water inlet direction and the water outlet direction are perpendicular to the flowing direction of liquid in the heating layer, the flowing speed of the liquid is reduced, the liquid in the heating layer can absorb more infrared radiation, and the liquid is guaranteed to be boiled completely. The length of the carbon fiber in the axial direction is L1, the maximum distance between the water inlet of the outer pipe and the water outlet of the outer pipe in the axial direction is L2, and the length of L1-L2 is less than or equal to 20 mm. The liquid in the heating layer can flow out as soon as possible after being boiled, the phenomenon that the liquid stays in the flowing dead angles at the two ends of the heating layer for too long time to form repeatedly boiled water is avoided, and the water quality safety of the liquid flowing out of the water outlet of the outer pipe is ensured.

The thickness S of the heating layer in the radial direction can be 0.2 mm-5 mm, so that enough liquid can be boiled in unit time, and the flowing liquid can be completely boiled. When the thickness S is less than 0.2mm, the liquid circulation of the heating layer is small, the unit water yield of the water outlet of the outer pipe is too small, so that the use experience of a user is influenced, meanwhile, the liquid in the heating layer in unit volume can absorb more infrared radiation to form a large amount of steam, and the steam directly flows out of the water outlet part of the water dispenser and easily scalds the user; when the thickness S is more than 5mm, the infrared radiation which can be absorbed by the liquid on the outer layer of the heating layer is less, and the liquid on the outer layer flows out from the water outlet of the outer pipe without being boiled.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

FIG. 1 is a front view of a carbon fiber heating tube of a heating tube assembly according to one embodiment of the present invention;

FIG. 2 is a side view of a carbon fiber heating tube of the heating tube assembly of the first embodiment;

fig. 3 is an internal structure view of a carbon fiber heating pipe of the heating pipe assembly according to the first embodiment;

FIG. 4 is a view showing a connection structure of the heating pipe assembly according to the second embodiment;

fig. 5 is a schematic structural diagram of a nanomembrane heating tube of the heating tube assembly according to the second embodiment.

Detailed Description

Example one

As shown in fig. 1 to 3, this embodiment provides a heating pipe assembly, including carbon fiber heating pipe 1, carbon fiber heating pipe 1 includes first hyaline tube 11 and sends infrared radiation and carries out the carbon fiber 10 that heats, and carbon fiber 10 seals in first hyaline tube 11, the outside cover of first hyaline tube 11 is equipped with outer tube 12, is equipped with the zone of heating 13 that supplies water to flow between outer tube 12 and the first hyaline tube 11, and including zone of heating 13 wraps up carbon fiber 10, outer tube 12 is equipped with outer tube water inlet 121 and outer tube water outlet 122 with zone of heating 13 intercommunication.

At first, the infrared radiation that carbon fiber 10 sent is seen through from first transparent tube 11, and inject into the liquid of zone of heating 13, liquid absorption infrared radiation in the zone of heating 13 and resonance, the hydrone looks mutual friction of resonance produces the fuel factor, the realization is heated the liquid in the zone of heating 13, and simultaneously, infrared radiation's penetrability is good, transmission distance is far away, more liquid can produce resonance in the zone of heating 13, its heat exchange efficiency is high, liquid heating rate is fast, guarantee that the liquid that outer tube delivery port 122 flows has been completely boiled, carbon fiber heating pipe 1 itself has the characteristics that anti dry combustion method ability is strong and thermal inertia is little, can satisfy the user and drink the drinking water demand of heat promptly. Secondly, the outer tube 12 is sleeved outside the first transparent tube 11, so that heat loss is reduced, boiling of liquid in the heating layer 13 is promoted, the liquid flowing in the heating layer 13 is wrapped outside the first transparent tube 11, infrared radiation emitted by the carbon fibers 10 can be fully absorbed, and waste caused by direct emission of the infrared radiation is avoided. Finally, zone of heating 13 thickness is thin and wraps up outward evenly, no matter is the inlayer liquid or the outer liquid homoenergetic heating of zone of heating 13, and whole heating pipe heating is more even promptly to the outer liquid of zone of heating 13 also can boil the boiling, guarantees drinking water health and safety.

The liquid in the heating layer 13 is generally transparent, and in order to prevent infrared radiation from being emitted through the transparent liquid and heating substances outside the outer tube 12 to cause a safety accident, the outer tube 12 may be a non-transparent tube that prevents infrared radiation generated by the carbon fibers 10 from being transmitted therethrough. The non-transparent tube can prevent infrared radiation which is not absorbed by the liquid in the heating layer 13 from being emitted out of the outer tube 12, and waste of the infrared radiation is reduced, so that the liquid in the heating layer 13 can absorb more infrared radiation, and the electric heat conversion efficiency is improved.

The outer tube 12 includes a second transparent tube 120, and a reflective layer for reflecting infrared radiation to the heating layer 13 is disposed outside the second transparent tube 120. The reflection layer improves the reflectivity of the outer tube 12 to infrared radiation, reduces the loss of the infrared radiation on the outer tube 12, is beneficial to fully absorbing the infrared radiation generated by the carbon fiber 10 by flowing liquid, and further ensures the heat exchange efficiency; meanwhile, the reflective layer is disposed outside the second transparent tube 120, so as to prevent the reflective layer from directly contacting with the liquid having impact force, and to ensure the service life of the reflective layer.

The first transparent tube 11 and the second transparent tube 120 are both quartz tubes, and both ends of the second transparent tube 120 are welded with the outer side surface of the first transparent tube 11; the outer tube water inlet 121 and the outer tube water outlet 122 are both provided with a quartz connecting tube 123, and the quartz connecting tube 123 and the second transparent tube 120 are welded into a whole. The stability and the light transmissivity of quartz capsule are good, can bear the high temperature environment here, be difficult for taking place chemical reaction with liquid, can guarantee again that infrared radiation can see through first hyaline tube 11 in order to be absorbed by the liquid of zone of heating 13, and simultaneously, the mode that first hyaline tube 11 and second hyaline tube 120 and quartz connecting pipe 123 of quartz material can adopt the hot melt is connected as an organic wholely, not only connect reliably, the leakproofness is strong, simplify the structure of whole heating pipe subassembly moreover, and processing is convenient.

In this embodiment, the reflective layer is a metal foil wrapped outside the second transparent tube 120. The metal foil has a flat surface and a good reflection effect, and meanwhile, the metal foil is soft and can be wrapped outside the second transparent tube 120 relatively snugly, so that the infrared radiation between the second transparent tube 120 and the reflection layer is reduced.

It is understood that the reflective layer may be a coating film or a coating layer sprayed on the outer side of the second transparent tube 120 to further improve the adhesion between the reflective layer and the second transparent tube 120 and promote the energy-efficient conversion of the infrared radiation. There is no air layer between the second transparent tube 120 and the plating layer or coating layer to consume infrared radiation, and the infrared radiation transmitted through the wall of the second transparent tube 120 can be reflected back to the heating layer 13 again.

In this embodiment, outer tube water inlet 121 and outer tube delivery port 122 all locate on the pipe wall of outer tube 12 to the direction of intaking all is perpendicular with the flow direction of liquid in the zone of heating 13 with the play water direction, slows down the outflow speed of liquid, does benefit to the liquid in the zone of heating 13 and can absorb more infrared radiation, guarantees that liquid boils the boiling completely.

The two ends of the heating layer 13 are located outside the outer tube water inlet 121 and the outer tube water outlet 122, the liquid flows slowly, and the liquid can not flow out of the outer tube water outlet 122 in time after being heated and boiled, so that the infrared radiation is continuously absorbed, the length of the carbon fiber 10 in the axial direction is L1, the maximum distance between the outer tube water inlet 121 and the outer tube water outlet 122 in the axial direction is L2, and the distance between the L1 and the L2 is less than or equal to 20mm, in order to prevent the liquid at the two ends of the heating layer 13 from being boiled. The liquid in the heating layer 13 can flow out as soon as possible after being boiled, the phenomenon that the liquid stays in the flowing dead angles at the two ends of the heating layer 13 for too long time to form repeatedly boiled water is avoided, and the water quality safety of the liquid flowing out of the water outlet 122 of the outer pipe is ensured.

Of course, in order to improve the water outlet quality and the water outlet efficiency, the radial thickness S of the heating layer 13 can be 0.2 mm-5 mm, which can ensure that enough liquid can be boiled in unit time and the flowing liquid can be completely boiled. When the thickness S is less than 0.2mm, the liquid circulation of the heating layer 13 is small, the unit water yield of the outer pipe water outlet 122 is too small, so that the use experience of a user is influenced, meanwhile, the liquid in the heating layer 13 in unit volume can absorb more infrared radiation to form a large amount of steam, and the steam directly flows out of the water outlet part of the water dispenser and easily scalds the user; when the thickness S is more than 5mm, the infrared radiation which can be absorbed by the liquid on the outer layer of the heating layer 13 is little, and the liquid on the outer layer flows out from the water outlet 122 of the outer pipe without being boiled.

After the liquid in the heating layer 13 is heated, high-temperature water vapor can be formed, the water vapor expands outwards, the pipe walls of the first transparent pipe 11 and the outer pipe 12 can be under the action of larger pressure, and in order to ensure the integral pressure-resistant strength of the heating pipe assembly, the difference between the pipe wall thicknesses of the first transparent pipe 11 and the outer pipe 12 can be smaller than 0.5 mm; in this embodiment, the first transparent tube 11 and the outer tube 12 preferably have the same tube wall thickness. Specifically, the thickness of the tube wall of the first transparent tube 11 and the thickness of the tube wall of the outer tube 12 are both 0.8mm to 3 mm. The pressure of high-temperature water vapor can be borne, the light transmittance of the first transparent tube 11 can be guaranteed, and the loss of infrared radiation is reduced.

In this embodiment, the outer tube 12 may also be a metal tube, infrared radiation is not easy to penetrate through metal, the inner tube wall of the metal tube is smooth and flat, and the reflectivity of the infrared radiation on the inner tube wall of the metal tube is high, even close to specular reflection, which is beneficial for the heating layer 13 to absorb enough infrared radiation, thereby ensuring the heating efficiency of the carbon fiber heating tube 1 and simplifying the structure of the whole carbon fiber heating tube 1.

Example two

As shown in fig. 4 and 5, the heating pipe assembly in this embodiment further includes a preheating heating pipe for preheating water, and a water outlet of the preheating heating pipe is communicated with the water inlet 121 of the outer pipe. At this moment, cold water flows into earlier and preheats in the heating tube and carries out the primary heating, then, the warm water that the primary heating formed flows in carbon fiber heating pipe 1, and the warm water absorbs infrared radiation in zone of heating 13 and flows out until boiling, and the warm water is boiled required infrared radiation and is few, has reduced the time that liquid flows in zone of heating 13, has reduced carbon fiber heating pipe 1's length promptly greatly, makes things convenient for the installation of heating pipe subassembly on the water dispenser, has also reduced carbon fiber heating pipe 1's power.

In this embodiment, the preheating heating pipe is a nano-film heating pipe 2, the nano-film heating pipe 2 includes a quartz pipe body 21 for supplying water to flow and an electrode 22 sleeved outside the quartz pipe body 21, the nano-film for heating the liquid in the quartz pipe body 21 is sprayed on the outer side surface of the quartz pipe body 21, and the nano-film is in electrical contact with the electrode 22. The nanometer membrane generates heat after the electrode 22 is electrified, and the heat generated by the nanometer membrane is transferred to the liquid flowing in the quartz tube body 21 through the quartz tube body 21, so that cold water is preheated to form warm water, the heat of the whole heating tube is transferred from outside to inside, and the heating is more uniform.

Particularly, the two ends of the quartz tube body 21 are respectively sleeved with a water inlet hose joint 23 and a water outlet hose joint 24, the nano-film is positioned between the water inlet hose joint 23 and the water outlet hose joint, the nano-film heating tube 2 is communicated with the outer tube water inlet 121 through the water outlet hose joint 24, and the outer sides of the water inlet hose joint 23 and the water outlet hose joint 24 are respectively sleeved with a pipe hoop 25, so that the water inlet hose joint 23 and the water outlet hose joint 24 are in sealing fit with the two ends of the quartz tube body 21, water leakage at the joint is prevented, and difficulty in assembly due to the fact that other sealing elements are additionally arranged is also avoided, meanwhile, the water outlet hose joint 24 is made of soft materials, can be bent and deformed properly to be communicated with the outer tube water inlet 121, and connection of.

In this embodiment, the preheating heating pipe may also be a heating wire heating pipe with lower cost, the heating wire heating pipe includes a quartz pipe body for supplying water to flow and a metal heating wire located in an inner cavity of the quartz pipe body, and a water outlet of the quartz pipe body is communicated with the water inlet 121 of the outer pipe. Cold water flows into the quartz tube body to be contacted with the heating metal heating wire, the cold water absorbs heat on the metal heating wire to be heated up to form warm water, and the warm water flows into the carbon fiber heating tube 1 again to be reheated.

Other contents not described in this embodiment may refer to embodiment one.

In addition to the preferred embodiments described above, other embodiments of the present invention are also possible, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, which should fall within the scope of the present invention defined by the appended claims.

Claims (10)

1. The utility model provides a heating pipe assembly, its characterized in that, includes the carbon fiber heating pipe, the carbon fiber heating pipe includes first hyaline tube and sends infrared radiation and carries out the carbon fiber that heats, and the carbon fiber seals in first hyaline tube, the outside cover of first hyaline tube is equipped with the outer tube, is equipped with the zone of heating that supplies water to flow between outer tube and the first hyaline tube, and including the zone of heating wrapped up the carbon fiber, the outer tube was equipped with outer tube water inlet and outer tube delivery port with the zone of heating intercommunication.

2. The heating tube assembly of claim 1, wherein the outer tube is a non-transparent tube that prevents transmission of infrared radiation generated by the carbon fibers.

3. The heating tube assembly according to claim 2, wherein the outer tube comprises a second transparent tube, the outer side of which is provided with a reflective layer that reflects infrared radiation to the heating layer.

4. The heating tube assembly according to claim 3, wherein the first transparent tube and the second transparent tube are both quartz tubes, and both ends of the second transparent tube are welded to the outer side surface of the first transparent tube; quartz connecting pipes are arranged at the water inlet and the water outlet of the outer pipe and are welded with the second transparent pipe into a whole;

or the reflecting layer is a metal foil wrapped on the outer side of the second transparent tube;

or the reflecting layer is a coating film or a coating sprayed on the outer side surface of the second transparent tube.

5. The heating tube assembly of claim 1, wherein the outer tube water inlet and the outer tube water outlet are both disposed on the wall of the outer tube, the length of the carbon fiber in the axial direction is L1, the maximum distance between the outer tube water inlet and the outer tube water outlet in the axial direction is L2, and L1-L2 is 20mm or less; or the thickness S of the heating layer in the radial direction is 0.2 mm-5 mm.

6. The heating tube assembly of claim 1, wherein the first transparent tube and the outer tube have a difference in tube wall thickness of less than 0.5 mm; and/or the thickness of the tube wall of the first transparent tube and the thickness of the tube wall of the outer tube are both 0.8 mm-3 mm.

7. The heating tube assembly according to any one of claims 1 to 6, further comprising a preheating tube for preheating water, wherein a water outlet of the preheating tube is in communication with a water inlet of the outer tube.

8. The heating tube assembly of claim 7, wherein the preheating heating tube is a nano-film heating tube, the nano-film heating tube comprises a quartz tube body for flowing water and an electrode sleeved outside the quartz tube body, the nano-film is coated on the outer side surface of the quartz tube body for heating liquid in the quartz tube body, and the nano-film is in electrical contact with the electrode.

9. The heating tube assembly of claim 8, wherein the quartz tube body is sleeved with a water inlet hose connector and a water outlet hose connector at two ends thereof, the nano-film is located between the water inlet hose connector and the water outlet hose connector, the nano-film heating tube is communicated with the water inlet of the outer tube through the water outlet hose connector, and the outer sides of the water inlet hose connector and the water outlet hose connector are sleeved with pipe hoops.

10. The heating tube assembly according to claim 7, wherein the preheating heating tube is a heating wire heating tube, the heating wire heating tube comprises a quartz tube body for supplying water to flow and a metal heating wire located in an inner cavity of the quartz tube body, and a water outlet of the quartz tube body is communicated with a water inlet of the outer tube.

Images