CN221227750U - Multitube seal structure of quartz heating tube - Google Patents
Multitube seal structure of quartz heating tube Download PDFInfo
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- CN221227750U CN221227750U CN202322663852.6U CN202322663852U CN221227750U CN 221227750 U CN221227750 U CN 221227750U CN 202322663852 U CN202322663852 U CN 202322663852U CN 221227750 U CN221227750 U CN 221227750U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 87
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 239000010453 quartz Substances 0.000 title claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 100
- 238000007789 sealing Methods 0.000 claims abstract description 61
- 239000011521 glass Substances 0.000 claims abstract description 37
- 239000010445 mica Substances 0.000 claims abstract description 18
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 18
- 239000007921 spray Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000012774 insulation material Substances 0.000 claims abstract description 6
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 7
- 239000000523 sample Substances 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000004809 Teflon Substances 0.000 claims description 2
- 229920006362 Teflon® Polymers 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 8
- 150000002500 ions Chemical class 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 3
- 229910052755 nonmetal Inorganic materials 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
The utility model discloses a multi-tube sealing structure of a quartz heating tube, which comprises a protection tube, a mica tube, a heat insulation material arranged between the protection tube and the mica tube, a glass tube arranged in the mica tube, at least two heating tubes, and a liquid inlet end and a liquid outlet end which are detachably connected with the two ends of the heating tubes and the glass tube respectively through sealing components, wherein the heating tube is an electrothermal film outer spray tube, the electrothermal film outer spray tube comprises an inner tube made of quartz glass material, the outer surface of the inner tube is used as an electrothermal film carrier, the inner tube is provided with a channel for leading liquid into and heating, the glass tube is arranged at the axle center of the protection tube, and the at least two heating tubes are arranged around the glass tube at equal intervals.
Description
Technical Field
The utility model relates to the field of heating pipe sealing, in particular to a multi-pipe sealing structure of a quartz heating pipe.
Background
The conventional electric heaters for heating liquid are mostly formed by placing an electric heating plate, an electric heating rod, an electric heating wire or the like in a space made of plastic or metal, carrying out storage heating or heat exchange by means of the container, wherein a heating body or a part contacted with the liquid of the electric heaters is made of metal, metal molecules or ions cannot be generated in the heating process of the liquid, the heated liquid also contains the metal molecules or the ions, the use requirement of special equipment which does not need to contain metal ions or conductive ions is not met, and the conventional electric heaters have the conditions of poor heat insulation, insulation and sealing effects, so that energy waste is easily caused, the efficiency of the electric heaters is reduced, accidents of electric leakage and heat burning people are also generated.
Although related art has been used to address such problems, certain drawbacks remain in these techniques. For example, patent CN218181708U discloses a sealing structure of a quartz heating tube, which avoids the situation that the heating liquid contains metal molecules or ions and has the advantages of energy saving, safety, reliability and good sealing effect, but the defect that the heat of the outer wall of the heating tube cannot be fully utilized and the heat utilization rate is low still exists.
Disclosure of utility model
In order to solve the technical problems, the utility model provides a multi-tube sealing structure of a quartz heating tube, which aims to solve the technical problems that the heat of the outer wall of the heating tube cannot be fully utilized and the heat utilization rate is low in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
The utility model provides a quartz heating tube multitube seal structure, includes protection tube, mica tube, sets up the insulating material between protection tube and mica tube, sets up glass pipe and two at least heating tubes in the mica tube to and with heating tube and glass tube both ends respectively through seal assembly detachable continuous feed liquor end and play liquid end, the heating tube is the outer spray tube of electrothermal film, the outer spray tube of electrothermal film includes the inner tube of quartz glass material preparation, and the surface of inner tube is as the electrothermal film carrier, and the inner tube is equipped with lets in the passageway of heating of liquid, the glass tube sets up the axle center at the protection tube, two at least heating tubes use the axle center as the center, and the equidistance sets up around the glass tube.
Compared with the prior art, the quartz heating tube multi-tube sealing structure provided by the utility model has the advantages that the glass tube is arranged at the axle center of the protection tube, and at least two heating tubes are arranged around the glass tube at equal intervals, so that the heat emitted by the outer wall of the heating tube can be collected and utilized through the flowing of liquid, the heat of the outer wall of the heating tube can be fully utilized, and the heat utilization rate is high.
Further, the liquid inlet end and the liquid outlet end are respectively provided with a plurality of liquid inlet channels and a plurality of liquid outlet channels, and the liquid inlet channels and the liquid outlet channels are respectively communicated with the inside of the glass tube and the inner tube of the heating tube.
By the arrangement, the heat of the inner wall of the heating tube and the heat of the outer wall of the heating tube are taken away by liquid, so that the heat of the inner tube of the heating tube and the heat of the outer wall of the heating tube can be conveniently and fully utilized.
Further, the liquid inlet end and the liquid outlet end have the same structure, and the difference is that the liquid outlet end is provided with a temperature sensing probe mounting hole for mounting the temperature sensing probe, so that the temperature of the flowing liquid can be accurately detected.
Further, the liquid inlet and outlet modes of the liquid inlet end and the liquid outlet end are any one of straight inlet and straight outlet, side inlet and side outlet, straight inlet and side outlet or side inlet and straight outlet.
In the utility model, through the arrangement, different liquid inlet and outlet modes can be selected according to the needs.
Further, the multi-tube sealing structure of the quartz heating tube further comprises two mounting seats, the two mounting seats are arranged at two ends of the mica tube, the liquid inlet end and the liquid outlet end are respectively welded and sealed with the two mounting seats, the mounting seats are provided with a plurality of mounting grooves, two ends of the heating tube and two ends of the glass tube are respectively arranged in the corresponding mounting grooves of the mounting seats, first step-shaped gaps are formed at the contact positions of the two ends of the heating tube and the side surfaces of the mounting grooves, and the first step-shaped gaps comprise first gaps and second gaps;
the contact positions of the two ends of the glass tube and the side surfaces of the mounting groove are respectively provided with a second step-shaped gap, the second step-shaped gap comprises a third gap and a fourth gap, and the surfaces of the second gap and the fourth gap are respectively provided with threads.
Further, the seal assembly comprises a seal and a screw rod fixing piece, the seal comprises a first seal and a second seal, the first seal comprises a first seal ring and a first seal ring nut, the first seal ring is sleeved at the front end parts of the two ends of the glass tube and is arranged in the first gap, the first seal ring nut is matched with the surface threads of the second gap, and the first seal ring nut is rotationally inserted into the second gap and compresses the first seal ring.
Further, the second sealing piece comprises a second sealing ring and a second sealing ring nut, the second sealing ring is sleeved at the front end part of the two ends of the heating tube and is arranged in the third gap, the first sealing ring nut is matched with the surface threads of the third gap, and the second sealing ring nut is inserted into the third gap in a rotating mode and compresses the second sealing ring.
In the utility model, through the arrangement, the heating pipe and the glass pipe can be sealed in multiple ways, so that the heating pipe and the glass pipe are more energy-saving, safer and more reliable, the heating temperature can be controlled more accurately, and the sealing structure has the characteristics of convenient assembly, replacement and maintenance.
Further, the screw fixing piece comprises a first fixing piece, a second fixing piece, a fixing screw, a fixing nut and a compression spring, wherein the first fixing piece is arranged on the liquid inlet end and the liquid outlet end, and the second fixing piece is arranged on the mounting seat; the fixing device comprises a first fixing piece and a second fixing piece, wherein the first fixing piece and the second fixing piece are respectively provided with a plurality of through holes for the fixing screw to pass through, the fixing screw penetrates through the through holes of the first fixing piece and the second fixing piece, the two ends of the fixing screw are respectively provided with a screwed first fixing nut, and one side of the joint of the first fixing piece and the fixing screw is also provided with a compression spring.
Through such setting, can reach the plane compaction of feed liquor end, play liquid end plane, mount pad for feed liquor end, play liquid end and heating tube mount pad can not change in the position when high temperature, and sealed effect is good.
Further, an electrode connected with the electrothermal film of the electrothermal film external spray pipe is arranged on the electrothermal film, and the electrode is connected with an external power line, so that the electrothermal film external spray pipe is convenient to be electrified and heated.
Further, the liquid inlet end and the liquid outlet end are made of non-metal materials, so that heated liquid does not contain metal molecules or ions, the liquid inlet end and the liquid outlet end are made of teflon or one of high-temperature-resistant PP materials, and the heat insulation material is made of ceramic fiber heat insulation cotton and can be used for heat insulation and preventing burn of a shell of the protection tube.
Compared with the prior art, the utility model has the beneficial effects that:
(1) According to the multi-tube sealing structure of the quartz heating tube, the glass tube is arranged at the axis of the protection tube, and the at least two heating tubes are arranged around the glass tube at equal intervals, so that heat emitted by the outer wall of the heating tube can be collected and utilized through the flowing of liquid, the heat of the outer wall of the heating tube can be fully utilized, and the heat utilization rate is high.
(2) The utility model has the characteristics of multiple sealing, vibration prevention, nonmetal, high heat utilization rate and the like.
Drawings
Fig. 1 is a schematic structural view of embodiment 1;
FIG. 2 is an enlarged schematic view of the portion A of FIG. 1;
Fig. 3 is a schematic structural diagram of embodiment 2.
Wherein, the technical characteristics that each reference sign indicates are as follows:
1. A protective tube; 2. a mica tube; 3. a heat insulating material; 4. a heating tube; 5. a glass tube; 6. a liquid inlet end; 7. a liquid outlet end; 8. a mounting base; 81. a mounting groove; 91. a first seal; 92. a second seal; 911. a first seal ring; 912. a first seal ring nut; 921. a second seal ring; 922. a second seal ring nut; 101. a first fixing piece; 102. a second fixing piece; 103. a fixed screw; 104. a first fixing nut; 105. a compression spring; 106. a second fixing nut; 12. a temperature sensing probe.
Detailed Description
The present utility model will be further described in detail with reference to the following examples, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, but the scope of the present utility model is not limited to the following specific examples.
Example 1
As shown in fig. 1-2, this embodiment provides a multi-tube sealing structure of a quartz heating tube, including a metal protection tube 1, a mica tube 2, a heat insulation material 3 disposed between the protection tube 1 and the mica tube 2, a glass tube 5 disposed in the mica tube 2, at least two heating tubes 4 (2 in this embodiment), and a liquid inlet end 6 and a liquid outlet end 7 detachably connected to two ends of the heating tubes 4 and 5 respectively through sealing components, where the mica tube 2 is used for insulation, the mica tube 2 is matched with the heat insulation material 3 to prevent the heat transfer and leakage danger of the heating tubes 4 to the outside, the liquid inlet end 6 and the liquid outlet end 7 are made of non-metal materials, in this embodiment made of high temperature resistant PP material, the heated liquid can be prevented from having metal molecules or ions, the heating tubes 4 are electrothermal film outer nozzles, in this embodiment are nano electrothermal film quartz tubes, the nano electrothermal film comprises an inner tube made of quartz glass material, the outer surface of the inner tube is used as a nano electrothermal film carrier, the inner tube is provided with a channel for passing the liquid through the inner tube, and is disposed around the two glass tubes 1, and the central tube is disposed around the center of the glass tube 1.
According to the quartz heating tube multi-tube sealing structure provided by the utility model, the glass tube 5 is arranged at the axle center of the protection tube 1, and the at least two heating tubes 4 are arranged around the glass tube 5 at equal intervals, so that the heat emitted by the outer wall of the heating tube 4 can be collected and utilized through the flowing of liquid, the heat of the outer wall of the heating tube 4 can be fully utilized, and the heat utilization rate is high.
Specifically, the liquid inlet end 6 and the liquid outlet end 7 are respectively provided with a plurality of liquid inlet channels and a plurality of liquid outlet channels, and the liquid inlet channels and the liquid outlet channels are respectively communicated with the inside of the glass tube 5 and the inner tube of the heating tube, so that heat of the inner wall of the heating tube and heat of the outer wall of the heating tube are taken away by liquid, and the heat of the inner tube of the heating tube and the heat of the outer wall of the heating tube are conveniently and fully utilized.
Specifically, the liquid inlet end 6 and the liquid outlet end 7 have the same structure, and the difference is that the liquid outlet end 7 is provided with a temperature sensing probe for mounting the temperature sensing probe 12, so that the temperature of the flowing liquid can be accurately detected.
Specifically, the liquid inlet and outlet modes of the liquid inlet end 6 and the liquid outlet end 7 are any of straight inlet and straight outlet, side inlet and side outlet, straight inlet and side outlet or side inlet and straight outlet, and different liquid inlet and outlet modes can be selected according to the needs, in this embodiment, the liquid inlet and outlet modes are straight inlet and straight outlet.
Specifically, the multi-tube sealing structure of the quartz heating tube further comprises two mounting seats 8, the two mounting seats are arranged at two ends of the mica tube 3, the liquid inlet end 6 and the liquid outlet end 7 are respectively in fusion sealing with the two mounting seats 8, the mounting seats 8 are provided with a plurality of mounting grooves 81, two ends of the heating tube 4 and two ends of the glass tube 5 are respectively arranged in the corresponding mounting grooves 81 of the mounting seats 8, first step-shaped gaps are formed at the contact positions of the two ends of the heating tube 4 and the side surfaces of the mounting grooves 81, and the first step-shaped gaps comprise first gaps and second gaps (not identified in the figure);
Specifically, the contact positions between the two ends of the glass tube 5 and the side surfaces of the mounting groove 81 are provided with second step-shaped gaps, the second step-shaped gaps comprise a third gap and a fourth gap (not labeled in the figure), and the surfaces of the second gap and the fourth gap are provided with threads.
Specifically, the seal assembly comprises a seal member and a screw rod fixing member, the seal member comprises a first seal member 91 and a second seal member 92, the first seal member 91 comprises a first seal ring 911 and a first seal ring nut 912, the first seal ring 911 is sleeved at the front end parts of the two ends of the glass tube 5 and is arranged in a first gap, the first seal ring nut 912 is matched with the surface threads of the second gap, and the first seal ring nut 912 is rotatably inserted into the second gap and compresses the first seal ring 911.
Specifically, the second sealing member 92 includes a second sealing ring 921 and a second sealing ring nut 922, the second sealing ring 921 is sleeved on the front end portion of the two ends of the heating tube and is disposed in the third gap, the first sealing ring nut 912 is matched with the surface threads of the third gap, and the second sealing ring nut 922 is rotatably inserted into the third gap and compresses the second sealing ring 921.
Further, the screw fixing piece comprises a first fixing piece 101, a second fixing piece 102, a fixing screw 103, a first fixing nut 104, a compression spring 105 and a second fixing nut 106, wherein the first fixing piece 101 is arranged on the liquid inlet end 6 and the liquid outlet end 7, and the second fixing piece 102 is arranged on the mounting seat 8; the first fixing piece 101 and the second fixing piece 102 are all provided with a plurality of through holes for the fixing screw 103 to penetrate through, the fixing screw 103 penetrates through the through holes of the first fixing piece 101 and the second fixing piece 102, the two ends of the fixing screw 103 are provided with screwed first fixing nuts 104, the fixing screw 103 is further provided with second fixing nuts 106, the second fixing nuts 106 are arranged adjacent to the second fixing piece 102 and used for locking the second fixing piece 102, and one side of the joint of the first fixing piece 101 and the fixing screw 103 is further provided with a compression spring 105.
In this embodiment, through setting up like this to can reach the plane compaction of feed liquor end 6, play liquid end 7 plane, mount pad 8, make feed liquor end 6, play liquid end 7 and mount pad 8 can not change in the position when high temperature, sealed effectual.
Further, the electrode connected with the electrothermal film outer spray pipe is arranged on the electrothermal film outer spray pipe and is connected with an external power line, so that the electrothermal film outer spray pipe is convenient to heat the heating pipe 4.
Specifically, the heat insulation material 2 is made of ceramic fiber heat insulation cotton, so that heat can be insulated, and burn of the outer shell of the protective tube can be prevented.
When in use, when liquid flows through the outer spray pipe of the electrothermal film through the liquid inlet end 6, the outer spray pipe of the electrothermal film starts to heat, the heat quantity of the inner wall of the heating pipe 4 is taken away by the liquid, when the liquid flows through the glass pipe 5 through the liquid inlet end 6, the heat emitted by the outer wall of the heating pipe 4 is collected and utilized through the flowing of the liquid, and then the liquid comes out from the liquid outlet end 7.
Example 2
As shown in fig. 3, the multi-tube sealing structure of the quartz heating tube provided in this embodiment is basically the same as that of embodiment 1, and is different from embodiment 1 in that the liquid inlet and outlet modes in this embodiment are side-in and side-out.
Variations and modifications to the above would be obvious to persons skilled in the art to which the utility model pertains from the foregoing description and teachings. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the utility model should be also included in the scope of the claims of the utility model. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not constitute any limitation on the utility model.
Claims (10)
1. The utility model provides a quartz heating tube multitube seal structure, includes protection tube (1), mica tube (2), sets up insulating material (3) between protection tube (1) and mica tube (2), sets up glass pipe (5) and two at least heating tubes (4) in mica tube (2), and with heating tube (4) and glass pipe (5) both ends respectively through seal assembly detachably continuous feed liquor end (6) and play liquid end (7), heating tube (4) are electrothermal film outer spray tube, electrothermal film outer spray tube includes the inner tube of quartz glass material preparation, and the surface of inner tube is as the electrothermal film carrier, and the inner tube is equipped with lets in the passageway of heating of liquid, its characterized in that, glass tube (5) set up the axle center at protection tube (1), two at least heating tubes (4) use the axle center, the equidistance sets up around glass pipe (5).
2. The multi-tube sealing structure of the quartz heating tube according to claim 1, wherein the liquid inlet end (6) and the liquid outlet end (7) are respectively provided with a plurality of liquid inlet channels and liquid outlet channels, and the liquid inlet channels and the liquid outlet channels are respectively communicated with the interior of the glass tube (5) and the inner tube of the heating tube (4).
3. The multi-tube sealing structure of the quartz heating tube according to claim 2, wherein the liquid inlet end (6) and the liquid outlet end (7) have the same structure, and the difference is that the liquid outlet end (7) is provided with a temperature sensing probe mounting hole.
4. A multi-tube sealing structure of a quartz heating tube according to claim 3, wherein the liquid inlet and outlet modes of the liquid inlet end (6) and the liquid outlet end (7) are any one of straight inlet and straight outlet, side inlet and side outlet, straight inlet and side outlet or side inlet and straight outlet.
5. The quartz heating tube multi-tube sealing structure according to claim 1, further comprising two mounting seats (8), wherein the two mounting seats (8) are arranged at two ends of the mica tube (2), the liquid inlet end (6) and the liquid outlet end (7) are respectively welded and sealed with the two mounting seats (8), the mounting seats (8) are provided with a plurality of mounting grooves (81), two ends of the heating tube (4) and two ends of the glass tube (5) are respectively arranged in the corresponding mounting grooves (81) of the mounting seats (8), first step-shaped gaps are formed at the contact positions of the two ends of the heating tube (4) and the side surfaces of the mounting grooves (81), and the first step-shaped gaps comprise first gaps and second gaps;
The contact positions of the two ends of the glass tube (5) and the side surfaces of the mounting groove (81) are respectively provided with a second step-shaped gap, the second step-shaped gap comprises a third gap and a fourth gap, and the surfaces of the second gap and the fourth gap are respectively provided with threads.
6. The quartz heat tube multi-tube sealing structure according to claim 5, wherein the sealing assembly comprises a sealing member and a screw rod fixing member, the sealing member comprises a first sealing member (91) and a second sealing member (92), the first sealing member (91) comprises a first sealing ring (911) and a first sealing ring nut (912), the first sealing ring (911) is sleeved at the front end parts of the two ends of the glass tube (5) and is arranged in the first gap, the first sealing ring nut (912) is matched with the surface threads of the second gap, and the first sealing ring nut (912) is rotatably inserted into the second gap and compresses the first sealing ring (911).
7. The multi-tube sealing structure of the quartz heating tube according to claim 6, wherein the second sealing member (92) comprises a second sealing ring (921) and a second sealing ring nut (922), the second sealing ring (921) is sleeved at the front end parts of the two ends of the heating tube and is arranged in the third gap, the first sealing ring nut (912) is matched with the surface threads of the third gap, and the second sealing ring nut (922) is rotatably inserted into the third gap and compresses the second sealing ring (921).
8. The quartz heating tube multi-tube sealing structure according to claim 6, wherein the screw fixing member comprises a first fixing piece (101), a second fixing piece (102), a fixing screw (103), a fixing nut (104) and a compression spring (105), the first fixing piece (101) is arranged on the liquid inlet end (6) and the liquid outlet end (7), and the second fixing piece (102) is arranged on the mounting seat (8);
The fixing device is characterized in that the first fixing piece (101) and the second fixing piece (102) are respectively provided with a plurality of through holes for the fixing screw rods (103) to penetrate through, the fixing screw rods (103) penetrate through the through holes of the first fixing piece (101) and the second fixing piece (102), the two ends of the fixing screw rods (103) are provided with screwed first fixing nuts (104), and one side of the joint of the first fixing piece (101) and the fixing screw rods (103) is further provided with a compression spring (105).
9. The multi-tube sealing structure of the quartz heating tube according to claim 1, wherein the electrothermal film of the electrothermal film outer nozzle is provided with an electrode connected with the electrothermal film, and the electrode is connected with an external power line.
10. The quartz heating tube multi-tube sealing structure according to claim 1, wherein the liquid inlet end (6) and the liquid outlet end (7) are made of nonmetallic materials, the liquid inlet end (6) and the liquid outlet end (7) are made of one of teflon or a high-temperature-resistant PP material, and the heat insulation material (3) is made of ceramic fiber heat insulation cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322663852.6U CN221227750U (en) | 2023-09-28 | 2023-09-28 | Multitube seal structure of quartz heating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322663852.6U CN221227750U (en) | 2023-09-28 | 2023-09-28 | Multitube seal structure of quartz heating tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221227750U true CN221227750U (en) | 2024-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322663852.6U Active CN221227750U (en) | 2023-09-28 | 2023-09-28 | Multitube seal structure of quartz heating tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221227750U (en) |
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2023
- 2023-09-28 CN CN202322663852.6U patent/CN221227750U/en active Active
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