CN207350798U - Hotline heater - Google Patents
Hotline heater Download PDFInfo
- Publication number
- CN207350798U CN207350798U CN201721323717.5U CN201721323717U CN207350798U CN 207350798 U CN207350798 U CN 207350798U CN 201721323717 U CN201721323717 U CN 201721323717U CN 207350798 U CN207350798 U CN 207350798U
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- CN
- China
- Prior art keywords
- pipe
- oil
- inverted
- sealing
- exhaust outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 238000007789 sealing Methods 0.000 claims abstract description 87
- 230000035699 permeability Effects 0.000 claims abstract description 24
- 230000000903 blocking effect Effects 0.000 claims abstract description 3
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 28
- 239000012530 fluid Substances 0.000 claims description 26
- 239000007789 gas Substances 0.000 claims description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 238000010079 rubber tapping Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 241000233855 Orchidaceae Species 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000000446 fuel Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 230000001590 oxidative effect Effects 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000004939 coking Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 239000003949 liquefied natural gas Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Resistance Heating (AREA)
Abstract
The utility model discloses a kind of hotline heater, it includes：Heater body, heater body include oil groove, conduction oil are housed in oil groove, an at least exhaust outlet is provided with oil groove；Oil-sealing arrangement, the exhaust ports are correspondingly arranged one oil-sealing arrangement, and the oil-sealing arrangement includes：Permeability cell, for discharging the expanding gas in oil groove when heater body works；Sealing, the passage connected for blocking permeability cell with exhaust outlet；When heater body does not work, the air pressure in oil groove is small, both seals exhaust outlet, when heater body works, the air pressure increase in oil groove, the seal of the open-top sealing of expanding gas, so that permeability cell is connected with evacuation port, expanding gas are exhausted by permeability cell.The hotline heater of the utility model avoids the disadvantage of open system, at the same have concurrently open system it is simple in structure, it is easy to operate, save and safeguard and the advantages of operating cost.
Description
Technical field
Fluid heating art is the utility model is related to, more particularly to a kind of hotline heater.
Background technology
Hotline heater using conduction oil as heat carrier, using circulating pump conduction oil is circulated in oil groove with uniformly by
Thermal energy is conveyed to the equipment that need to be heated or medium by heat, conduction oil again.
Traditionally, the heat transfer system of hotline heater is respectively open system and closed system mainly by two kinds.Open
Formula system is that exhaust pipe is set on oil groove, and when heat-conducting oil heating expands, gas can be discharged by the exhaust pipe, is so saved
Plant maintenance and operating cost, and operate also relatively simple.Nowadays it is domestic nearly to have 90% hotline heater using this
Heat transfer system.Closed system generally use inert gas makes conduction oil and air insulated.Closed system makes conduction oil closed operation,
Completely cut off air, can effectively prevent conduction oil oxidative degradation, prolonging service life of heat transfer oil.But since closed system needs a set of nitrogen
Gas generating system, complicates hotline heater and all brings certain influence to operation, maintenance, be rarely employed at present.
Although open system is simple in structure, oxidative phenomena can all occur in atmosphere in any oil product, and oil product
Oxidation rate and the contact area of oily oxygen are proportional, and therefore, conduction oil passes through exhaust pipe long-time and sky in open system
Gas comes into contact in a large area, and can aoxidize generation organic acid, is polymerized to clay after further promoting oil product polymerisation, increases viscosity, passes
The thermal efficiency reduces, and causes overheat and tube coking, shortens the service life of conduction oil, influence system safe and stable operation.
Utility model content
In order to solve, closed system existing for the heat transfer system of hotline heater in conventional art is complicated, open type system
Unite easy oxidation by air the problem of, the utility model provide it is a kind of simple in structure and can air-isolation, protection conduction oil,
The hotline heater of prolonging service life of heat transfer oil.
The utility model provides a kind of hotline heater, including：
Heater body, the heater body include oil groove, conduction oil are housed in the oil groove, is set on the oil groove
There is an at least exhaust outlet；
Oil-sealing arrangement, the exhaust ports are correspondingly arranged the oil-sealing arrangement described in one, and the oil-sealing arrangement includes：
Permeability cell, for discharging the expanding gas in the oil groove when the heater body works；
Sealing, the passage connected for blocking the permeability cell with the exhaust outlet；
When the heater body does not work, the air pressure in the oil groove is small, exhaust outlet described in the both seals,
When the heater body works, the air pressure increase in the oil groove, the seal of the open-top sealing of expanding gas, makes
Obtain the permeability cell to connect with the evacuation port, expanding gas are exhausted by the permeability cell.
Optionally, the sealing includes inverted U pipe and the seal, and the seal is to be stored in part U
Sealing fluid in type pipe, the Single port of the inverted U pipe are connected with the exhaust outlet, the another port of the inverted U pipe with
The permeability cell connection；
The oil-sealing arrangement further includes caching pipe, and the caching pipe is used to cache inflated gas from the inverted U pipe
The sealing fluid of ejection, the caching pipe connect the inverted U pipe and the permeability cell, and the caching pipe is horizontally installed on described
The lower section of permeability cell and the top for being located at the inverted U pipe.
Optionally, the oil-sealing arrangement further includes connecting tube, and the connecting tube connects the inverted U pipe and the caching
Pipe；
The inverted U pipe includes inverted U tube body and horizontal seal pipe, the horizontal seal pipe connect the connecting tube and
The inverted U tube body, the inverted U tube body are connected with the exhaust outlet of the oil groove.
Optionally, the oil-sealing arrangement further includes drain pipe, and the upper port of the drain pipe passes through three-way pipe and the company
Adapter, horizontal seal pipe connection, the lower port of the drain pipe have been located at tapping valve；
When the heater body does not work, the sealing fluid is stored in the horizontal seal pipe and the U
Type tube body is close to the side of the horizontal seal pipe.
Optionally, the oil-sealing arrangement further includes liquid level gauge, and the liquid level gauge is used to detect to seal in the oil-sealing arrangement
The liquid level of liquid, and send alarm when liquid level is less than the connecting tube and the drain pipe junction position.
Optionally, the upper end of the liquid level gauge is connected by the first ball valve with the caching pipe, the lower end of the liquid level gauge
Connected by the second ball valve with the drain pipe.
Optionally, the oil-sealing arrangement, which further includes, is used to support the pipe support for caching pipe and for sealing the exhaust outlet
Blind flange, the pipe support is fixed on the blind flange, and the blind flange has a through hole, and the inverted U pipe passes through described
Through hole is connected with the exhaust outlet.
Optionally, the sealing liquid is conduction oil.
Optionally, the oil groove has two or more exhaust outlets, and in addition to an exhaust outlet connects nitrogen, remaining is each
Exhaust outlet is equipped with the oil-sealing arrangement.
The technical solution that the embodiment of the utility model provides can include the following benefits：
The utility model on the exhaust outlet of oil groove by setting corresponding oil-sealing arrangement to prevent in oil groove come air-isolation
Conduction oil contact and aoxidized with the oxygen in air so that substantial amounts of conduction oil will not become because of thermal oxidative reaction in oil groove
Matter, avoids the problem of causing tube coking due to thermal oxidative reaction in open system, greatly extends making for conduction oil
With the service life, thereby, avoid the disadvantage of open system, at the same have concurrently open system it is simple in structure, it is easy to operate, save safeguard and
The advantages of operating cost.
It should be appreciated that the general description and following detailed description of the above are only exemplary, this can not be limited
Utility model.
Brief description of the drawings
Attached drawing herein is merged in specification and forms the part of this specification, shows and meets the utility model
Embodiment, and be used in specification to explain the principle of the utility model together.
Fig. 1 is that the hotline heater of the utility model only shows the structure diagram of heater body.
Fig. 2 is that the hotline heater of the utility model shows the structural representation of oil-sealing arrangement and section heaters body
Figure.
Fig. 3 is the top view of heater body.
Fig. 4 is the structure diagram of the medium coil pipe of the utility model.
Embodiment
In order to further illustrate the principle and structure of the utility model, the utility model is preferable to carry out in conjunction with attached drawing
Example is described in detail.
As depicted in figs. 1 and 2, Fig. 1 is that the hotline heater of the utility model only shows that the structure of heater body is shown
It is intended to, Fig. 2 is that the hotline heater of the utility model shows the structure diagram of oil-sealing arrangement and section heaters body.Lead
Hot oil includes heater body 10 and oil-sealing arrangement 20, and oil-sealing arrangement 20 is arranged on the exhaust outlet 14 of heater body 10
On.
With reference to shown in Fig. 3, Fig. 3 is the top view of heater body.Heater body 20 includes oil groove 11, in oil groove
Circulating pump 12, the electrical heating coil pipe 13 that is heated to the conduction oil in oil groove 11 and the medium coil pipe for heat medium
15.Be mounted with conduction oil in oil groove 11, circulating pump 12 drives conduction oil in 11 internal circulation flow of oil groove so that conduction oil uniformly by
Heat.The part electric wire tube of electrical heating coil pipe 13 is exposed to be connected outside oil tank 11 with electric heater unit 18, and part electric wire tube stretches
Enter in oil tank 11 to heat conduction oil.When electric heater unit 18 works, the electric wire tube of electrical heating coil pipe 13 is to conduction oil
Heated.
As shown in figure 4, its structure diagram for the medium coil pipe of the utility model.Medium coil pipe 15 is coiled into spiral
Shape, and be fully immersed in conduction oil so that the outer tube wall of each pipeline of medium coil pipe 15 can be contacted with conduction oil, fully to inhale
Receive the heat of conduction oil.Hot medium need to be added to be passed through the inside of medium coil pipe 15 so that tube wall of the medium from medium coil pipe 15
Upper absorption heat, so as to reach the purpose of conducting self-heating.For example, this need to add hot medium to be liquefied natural gas, the liquefaction is natural
When gas passes through medium coil pipe 15, heat is absorbed, and then is converted into gas, realizes the purpose of gasification.Therefore, the hotline heater
It can also be used for the gasification to liquefied natural gas.
In order to control the temperature of heat-conducting oil heating and speed, heater body 20 further includes PLC control cabinet 16 and electric-controlled
Cabinet 17 processed, is provided with PLC controller in PLC control cabinet 16, and the electrical equipment which passes through in electrical control cabinet 17 is real
Now to the control of electric heater unit 18, thus, the accurate firing rate and heating-up temperature for controlling conduction oil.
The exhaust outlet 14 that the top of oil groove 11 is set is used for when hotline heater works, and the gas of expansion is discharged,
Reduce the pressure in oil tank 11.More preferably, in order to reduce the conduction oil and contacting external air in oil tank 11, except an exhaust outlet connects
(after the completion of nitrogen displacement, the exhaust outlet for being passed through nitrogen can quilt first or outside maintenance rear substitution oil groove inner air for nitrogen
Sealing), in other each exhaust ports, one oil-sealing arrangement 20 is set；Alternatively, one oil sealing can also be set in each exhaust outlet
Device 20, in this case, the displacement of nitrogen can be carried out by the hole on spill case, certainly also can be by other oil tanks 11
Hole carry out.
As shown in Fig. 2, oil-sealing arrangement 20 includes permeability cell 21 and sealing 22.When heater body 10 works, oil groove
Gas expansion in 11, volume increase, at this time, permeability cell 21 are used to discharge the expanding gas in oil groove 11, reduce oil tank 11
Interior gas pressure.The seal of sealing 22 is used to block the passage that permeability cell 21 is connected with exhaust outlet 14.Work as heater
When body 10 does not work, the air pressure in oil groove 11 is smaller, the seal sealing exhaust outlet 14 of sealing 22, the heat conduction in oil tank 11
Oil and air insulated；When heater body 10 works, when the air pressure in oil groove is expanded because of heating, when air pressure increases to necessarily
During degree, the seal of the open-top sealing 22 of expanding gas so that permeability cell 21 is connected with evacuation port 14, and expanding gas pass through saturating
Tracheae 21 is exhausted, and reduces the air pressure in oil tank 11.
Specifically, sealing 22 includes inverted U pipe 221 and seal, which is to be stored in part inverted U pipe 221
Interior sealing fluid (not shown).In order to avoid sealing fluid is inhaled into oil groove 11 and contaminated oil when 11 air pressure of oil groove is too low
Groove 11, it is preferable that the sealing fluid is same media with the fluid in oil groove 11, i.e., the sealing fluid is also conduction oil.In addition,
When 11 air pressure of oil groove is too low, nitrogen can be filled with ftercompction is carried out to oil groove 11.
Inverted U pipe 221 includes inverted U tube body 221a and horizontal seal pipe 221b, and U-tube body 221a is in inverted U, should
The left-hand component of inverted U tube body 221a is the first VERTICAL TUBE, and right-hand component is the second VERTICAL TUBE, and center section is connection first
The bend pipe of VERTICAL TUBE and the second VERTICAL TUBE.First VERTICAL TUBE of the left-hand component of inverted U tube body 221a and horizontal seal pipe
221b connections, the second VERTICAL TUBE of the right-hand component of inverted U tube body 221a are connected with the exhaust outlet 14 of oil groove 11.
Horizontal seal pipe 221b stores sealing fluid, is stored up in the first VERTICAL TUBE of inverted U tube body 221a left-hand components
There is a small amount of sealing fluid, since sealing fluid itself is there are weight, under the action of weight, and without outer masterpiece
In the case of, sealing fluid be impossible break through inverted U tube body 221a center sections bend pipe and and then right-hand component
Second VERTICAL TUBE, therefore, sealing and exhaust outlet 14 is can be very good positioned at the sealing fluid of inverted U tube body 221a left-hand components
The second VERTICAL TUBE being connected, and then prevent conduction oil and contacting external air in oil tank 11.
Further, oil-sealing arrangement 20 further includes caching pipe 23 and the connecting tube for connecting inverted U pipe 221 and caching pipe 23
24.Caching pipe 23 is used to cache the sealing fluid that inflated gas is ejected from inverted U pipe 221.Caching pipe 23 passes through connecting tube
24 connection inverted U pipes 221 and permeability cell 21.Caching pipe 23 is horizontally installed on the lower section of permeability cell 21 and is located at 221 He of inverted U pipe
The top of connecting tube 24.
Further, oil-sealing arrangement 20 further includes the pipe support 29 for being used to support caching pipe 23 and the method for sealing exhaust outlet 14
Blue lid 28.Pipe support 29 is fixed on blind flange 28 caches pipe 23 to support.Blind flange 28 has a through hole, and inverted U pipe 221 passes through
The through hole is connected with exhaust outlet 14.
Further, oil-sealing arrangement 20 further includes drain pipe 25, and the upper port of drain pipe 25 passes through three-way pipe 241 and connecting tube
24th, horizontal seal pipe 221b is connected, and the lower port of drain pipe 25 has been located at tapping valve 251.Tapping valve 251 is used to periodically discharge oil
Sealing fluid in seal apparatus 20, to replace sealing fluid, prevents that sealing fluid usage time is long and aoxidizes.25 He of drain pipe
Connecting tube 24 can connect into a straight tube.Drain pipe 25 is arranged on the lower section of horizontal seal pipe 221b.
Further, oil-sealing arrangement 20 further includes liquid level gauge 26, and the upper end of liquid level gauge 26 is managed by the first ball valve 261 with caching
23 connections, the lower end of liquid level gauge 26 is connected by the second ball valve 262 with drain pipe 25.Liquid level gauge 26 is used to detect oil-sealing arrangement 20
The liquid level of middle sealing liquid, and alarm is sent when liquid level is less than 24 junction position of connecting tube 24 and drain pipe, to carry
Awake staff adds sealing fluid in time.
Further, oil-sealing arrangement 20 further includes fuel feeding valve 281 and oil fuel tube 282, and oil fuel tube 282 is connected with caching pipe 23,
When the sealing liquid in oil-sealing arrangement 20 is very few, fuel feeding valve 281 is opened, you can oil-sealing arrangement 20 is added by oil fuel tube 282
Encryption envelope fluid.
The principle of the utility model oil-sealing arrangement is as follows：
When heater body 10 does not work, fluid major storage is sealed in drain pipe 25 and horizontal connection tube 221b, with
And be stored on a small quantity in the first VERTICAL TUBE of left-hand component of inverted U pipe 221, when heater body 10 does not work, oil groove 11
Interior air pressure is smaller, sealing Fluid Sealing exhaust outlet 14 so that oil groove 11 is in air-tight state；
When heater body 10 works, higher and higher with the temperature of conduction oil, 11 inner volume of oil groove also gradually expands,
Air pressure raises, and gas is risen into inverted U pipe 221, in conduction oil to the caching pipe 23 of open-top inverted U pipe left-hand component,
At this time, gas is discharged by the ventilation mouth of permeability cell, and after exhaust, the conduction oil cached in pipe 23 is back to down rapidly U
Sealed in type pipe 221, this process can be reflected by the height of liquid level that liquid level gauge 26 is shown.
When hotline heater is stopped using or reduces load in use, Wen Duxiajiang in oil groove 11, volume contraction, pressure
Power reduces, and at this time, the conduction oil in inverted U pipe 221 may be back in oil groove 11 under atmospheric pressure, passed through at this time
Observe liquid level gauge 26 on level readings or when the alarm on liquid level gauge 26 is sounded, fuel feeding valve 281 can be opened in time to inverted U
The supplement sealing fluid of pipe 221, and be filled with nitrogen and ftercompction is carried out to oil groove 11.
A small amount of conduction oil in inverted U pipe 221 can directly be contacted with air, but not directly contact heat source, therefore more
In the case of number, hot oxygen reaction can't occur, even if will not be all introduced into oil groove 11 there occurs thermal oxidative reaction dirty
Dye, while the conduction oil in inverted U pipe can also be discharged by drain pipe and is replaced.
Thus, the utility model is on each exhaust outlet of oil groove by setting corresponding oil-sealing arrangement come air-isolation,
Prevent the conduction oil in oil groove is contacted with the oxygen in air from being aoxidized so that substantial amounts of conduction oil will not be because of hot oxygen in oil groove
Change reaction and go bad, avoid the problem of tube coking is caused due to thermal oxidative reaction in open system, greatly extend
The service life of conduction oil, thereby, can avoid the disadvantage of open system, at the same have concurrently open system it is simple in structure, operation letter
The advantages of single, saving maintenance and operating cost.
It these are only the preferable possible embodiments of the utility model, not limit the scope of protection of the utility model, all fortune
Changed with the equivalent structure made by the utility model specification and accompanying drawing content, be all contained in the scope of protection of the utility model
It is interior.
Claims (10)
- A kind of 1. hotline heater, it is characterised in that including：Heater body, the heater body include oil groove, and conduction oil is housed in the oil groove, be provided with the oil groove to A few exhaust outlet；Oil-sealing arrangement, is correspondingly arranged the oil-sealing arrangement described in one, the oil-sealing arrangement includes in the exhaust ports：Permeability cell, for discharging the expanding gas in the oil groove when the heater body works；Sealing, the passage connected for blocking the permeability cell with the exhaust outlet；When the heater body does not work, the air pressure in the oil groove is small, exhaust outlet described in the both seals, in institute When stating heater body work, the air pressure increase in the oil groove, the seal of the open-top sealing of expanding gas so that institute State permeability cell to connect with the exhaust outlet, expanding gas are exhausted by the permeability cell.
- 2. hotline heater according to claim 1, it is characterised in thatThe sealing includes inverted U pipe and the seal, and the seal is the sealing being stored in the inverted U pipe of part Fluid, the Single port of the inverted U pipe are connected with the exhaust outlet, and another port and the permeability cell of the inverted U pipe connect It is logical；The oil-sealing arrangement further includes caching pipe, and the caching pipe is ejected for caching inflated gas from the inverted U pipe Sealing fluid, the caching pipe connects the inverted U pipe and the permeability cell, and the caching pipe is horizontally installed on described ventilative The lower section of pipe and the top for being located at the inverted U pipe.
- 3. hotline heater according to claim 2, it is characterised in that the oil-sealing arrangement further includes connecting tube, institute State connecting tube and connect the inverted U pipe and the caching pipe；The inverted U pipe includes inverted U tube body and horizontal seal pipe, and the horizontal seal pipe connects the connecting tube and described Inverted U tube body, the inverted U tube body are connected with the exhaust outlet of the oil groove.
- 4. hotline heater according to claim 3, it is characterised in that the oil-sealing arrangement further includes drain pipe, institute The upper port for stating drain pipe is connected by three-way pipe with the connecting tube, the horizontal seal pipe, the lower port of the drain pipe It has been located at tapping valve；When the heater body does not work, the sealing fluid is stored in the horizontal seal pipe and the inverted U pipe Body is close to the side of the horizontal seal pipe.
- 5. hotline heater according to claim 4, it is characterised in that the oil-sealing arrangement further includes liquid level gauge, institute State liquid level gauge and be used to detect the liquid level that liquid is sealed in the oil-sealing arrangement, and be less than the connecting tube and the discharge opeing in liquid level Alarm is sent during the position of pipe junction.
- 6. hotline heater according to claim 5, it is characterised in that the upper end of the liquid level gauge passes through the first ball valve Connected with the caching pipe, the lower end of the liquid level gauge is connected by the second ball valve with the drain pipe.
- 7. hotline heater according to claim 2, it is characterised in that the oil-sealing arrangement, which further includes, is used to support institute The pipe support of caching pipe and the blind flange for sealing the exhaust outlet are stated, the pipe support is fixed on the blind flange, the method Orchid lid has a through hole, and the inverted U pipe is connected by the through hole with the exhaust outlet.
- 8. hotline heater according to claim 2, it is characterised in that the sealing liquid is conduction oil.
- 9. hotline heater according to claim 1, it is characterised in that the oil groove has two or more Exhaust outlet, in addition to an exhaust outlet connects nitrogen, remaining each exhaust outlet is equipped with the oil-sealing arrangement.
- 10. hotline heater according to claim 1, it is characterised in that the heater body further includes electrical heating Coil pipe and medium coil pipe, the electrical heating coil pipe heat the conduction oil in the oil groove, and the medium coil pipe is immersed in In the conduction oil, hot medium need to be added to circulate from the medium tube, and heat is absorbed to heat by the medium coil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721323717.5U CN207350798U (en) | 2017-10-09 | 2017-10-09 | Hotline heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721323717.5U CN207350798U (en) | 2017-10-09 | 2017-10-09 | Hotline heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207350798U true CN207350798U (en) | 2018-05-11 |
Family
ID=62358346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721323717.5U Withdrawn - After Issue CN207350798U (en) | 2017-10-09 | 2017-10-09 | Hotline heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207350798U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560182A (en) * | 2017-10-09 | 2018-01-09 | 荆门宏图特种飞行器制造有限公司 | Hotline heater |
-
2017
- 2017-10-09 CN CN201721323717.5U patent/CN207350798U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560182A (en) * | 2017-10-09 | 2018-01-09 | 荆门宏图特种飞行器制造有限公司 | Hotline heater |
| CN107560182B (en) * | 2017-10-09 | 2023-01-31 | 荆门宏图特种飞行器制造有限公司 | Heat conducting oil heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180511 Effective date of abandoning: 20230131 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180511 Effective date of abandoning: 20230131 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |