CN114321547B - Subway water fire-fighting pipeline anti-freezing device and installation method thereof - Google Patents
Subway water fire-fighting pipeline anti-freezing device and installation method thereof Download PDFInfo
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- CN114321547B CN114321547B CN202111679608.8A CN202111679608A CN114321547B CN 114321547 B CN114321547 B CN 114321547B CN 202111679608 A CN202111679608 A CN 202111679608A CN 114321547 B CN114321547 B CN 114321547B
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Abstract
The application relates to the field of water fire control, in particular to an antifreezing device for a subway water fire control pipeline and an installation method thereof. The subway water fire-fighting pipeline antifreezing device comprises a fixing frame, wherein the fixing frame is fixed on a pipeline easy to freeze. The fixing frame is connected with a heating ring pipe in a sliding manner, the heating ring pipe is sleeved on the easily frozen pipeline, and the heating ring pipe is communicated with a water inlet hose and a water outlet hose. The fixing frame is connected with a winding roller, and the water inlet hose and the water outlet hose are wound on the winding roller. The method for installing the subway water fire-fighting pipeline antifreezing device comprises the steps of detection, installation of a fixing frame, installation of a heating ring pipe and assembly. The application has the effect of keeping the easily frozen pipeline of the fire-fighting pipeline system in an unblocked state.
Description
Technical Field
The application relates to the field of water fire control, in particular to an antifreezing device for a subway water fire control pipeline and an installation method thereof.
Background
The fire-fighting system in the underground rail transit is related to the safety of the underground rail transit, and the fire-fighting pipeline is required to be kept smooth all the time.
In winter, the fire-fighting pipeline is extremely easy to freeze, and the antifreezing measure of the fire-fighting pipeline is to wrap heat-insulating cotton on the outer side of the easily frozen pipeline.
With respect to the related art in the above, the inventors consider that: the heat preservation cotton can only play a role in delaying heat dissipation, and easily frozen pipelines in the fire-fighting pipeline system are easily frozen in cold winter and long-time cold air.
Disclosure of Invention
In order to keep the easily frozen pipeline of the fire-fighting pipeline system in an unblocked state, the application provides a subway water fire-fighting pipeline anti-freezing device and an installation method thereof.
In a first aspect, the application provides an antifreezing device for a subway water fire pipeline, which adopts the following technical scheme:
the utility model provides a subway water fire control pipeline freeze-proof device, includes the mount, the mount is fixed on easily freezing the pipeline, sliding connection has heating ring pipe on the mount, heating ring pipe cover is established on easily freezing the pipeline, heating ring pipe includes two arced pipes, two the arced pipes can dismantle the connection, two the arced pipe combination is the ring form, be connected with on the mount and be used for the drive heating ring pipe is along the drive assembly of easy length direction reciprocating motion of freezing the pipeline, the last intercommunication of heating ring pipe has intake hose and play water hose, intake hose with heating ring pipe's junction is provided with first valve, play water hose with heating ring pipe's junction is provided with the second valve, be connected with on the mount around the roller, around the axis perpendicular to of roller heating ring pipe, intake hose with play water hose all twines around on the roller, install the hot water heater in the roller, intake hose intercommunication in the delivery port of hot water heater, the intercommunication of play water hose in the water inlet of drive assembly is used for driving the linkage roller on the drive assembly.
By adopting the technical scheme, the first valve is opened, the second valve is closed, and the water heater is used for introducing hot water into the heating loop pipe through the water inlet hose. After the heating ring pipe is filled with hot water, the first valve is closed, the driving assembly drives the heating ring pipe to reciprocate on the easily frozen pipeline, and the heating ring pipe heats the easily frozen pipeline, so that an antifreezing effect is achieved.
When the driving assembly works, the winding roller is driven to rotate through the linkage assembly, and the winding roller winds or unwinds the water inlet hose and the water outlet hose, so that the uniformity of the water inlet hose and the water outlet hose is improved.
When the water temperature in the heating ring pipe is reduced, the second valve is opened, the water pump in the water heater pumps out the water in the heating ring pipe, and the water heater heats the returned cold water and stores the heated water. Then the second valve is closed and the first valve is opened, and the water heater fills water into the heating ring pipe again, so that the heating ring pipe can work continuously.
According to the technical scheme, the driving assembly, the heating ring pipe, the water inlet hose, the water outlet hose, the water heater, the winding roller and the linkage assembly are matched with one another, so that the effect that the easily frozen pipeline of the fire-fighting pipeline system is kept in an unblocked state is achieved.
Optionally, a first connecting plate is fixedly connected to one of the arc-shaped pipes, a second connecting plate is fixedly connected to the other one of the arc-shaped pipes, and the first connecting plate and the second connecting plate are fixed through bolts and nuts.
Through adopting above-mentioned technical scheme, first connecting plate and second connecting plate pass through the bolt fastening to be convenient for install the heating ring canal on easy freezing pipeline, also be convenient for dismantle the heating ring canal on the easy freezing pipeline.
Optionally, the drive assembly includes drive screw, drive piece, drive screw rotate connect in the mount, drive screw's axis is on a parallel with the axis of heating ring canal, drive piece threaded connection in drive screw, drive piece sliding connection in the mount, drive piece fixed connection in heating ring canal, be connected with on the mount and be used for driving drive screw pivoted drive element.
By adopting the technical scheme, the driving element drives the driving screw to rotate, the driving screw drives the driving block to move, and the driving block drives the heating ring pipe to move. The heating ring pipe can reciprocate on the easily frozen pipeline by controlling the driving screw to rotate forwards and reversely through the driving element.
Optionally, a guide rod is fixedly connected to the fixing frame, a guide groove is formed in the driving block, the guide rod penetrates through the guide groove, and the guide rod is parallel to the driving screw.
Through adopting above-mentioned technical scheme, the guide bar has the effect of direction to the drive piece, has improved the stability when the drive piece slides.
Optionally, the linkage subassembly includes the universal driving axle, the universal driving axle rotate connect in the mount, the universal driving axle respectively perpendicular to drive screw with around the roller, coaxial coupling has first bevel gear on the drive screw, coaxial coupling has second bevel gear, third bevel gear on the universal driving axle, first bevel gear with the second bevel gear meshes mutually, coaxial coupling has the fourth bevel gear on around the roller, third bevel gear with the fourth bevel gear meshes mutually.
Through adopting above-mentioned technical scheme, drive first bevel gear rotation when the drive screw rotates, first bevel gear drives the rotation of second bevel gear, and the second bevel gear drives the universal driving shaft and rotates, and the universal driving shaft drives the rotation of third bevel gear. The third bevel gear drives the fourth bevel gear to rotate, and the fourth bevel gear drives the winding roller to rotate, so that the effect of driving the winding roller to rotate is achieved.
Optionally, a baffle ring is fixedly sleeved on the winding roller, and the baffle ring is positioned between the water inlet hose and the water outlet hose.
Through adopting above-mentioned technical scheme, keep off the ring and separate into water hose and play water hose, reduced the possibility that water hose and play water hose take place to interfere.
Optionally, a temperature sensor is connected to the fixing frame.
By adopting the technical scheme, the temperature sensor is used for detecting the temperature around the easily frozen pipeline, and when the temperature is lower than a set value, the easily frozen pipeline is heated by the heating loop. When the temperature is higher than the set value, the driving assembly and the water heater do not work, so that electric energy is saved.
In a second aspect, the application provides an installation method of an antifreezing device for a subway water fire pipeline, which adopts the following technical scheme:
the method for installing the subway water fire-fighting pipeline antifreezing device comprises the following steps:
s1, detecting: detecting an easily frozen pipeline of a subway water fire pipeline;
s2, installing a fixing frame: selecting a fixing frame with proper length according to the length of the easily frozen pipeline;
s3, installing a heating ring pipe: the two arc-shaped pipes are respectively sleeved on the easily frozen pipeline, and then the two arc-shaped pipes are connected;
s4, assembling: the heating ring pipe is connected with a driving component in the fixing frame, and the water inlet hose and the water outlet hose are both communicated between the heating ring pipe and the water heater.
Through adopting above-mentioned technical scheme, subway water fire control pipeline freeze-proof device's installation method is detection→installation mount→installation heating ring pipe→assembly, and at first workman detects the easy frozen section of ground molten iron fire control pipeline, then will select the appropriate mount of length according to the length of easy frozen pipeline, and the length of whole easy frozen pipeline can be covered in the movable range of heating ring pipe of being convenient for. And then sleeving the two arc-shaped pipes on the easily frozen pipeline, connecting the two arc-shaped pipes to form a heating annular pipe, and finally communicating the water inlet hose and the water outlet hose between the heating annular pipe and the water heater to finish installation.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the driving assembly, the heating ring pipe, the water inlet hose, the water outlet hose, the water heater, the winding roller and the linkage assembly are matched with each other, so that the effect of keeping the easily frozen pipeline of the fire-fighting pipeline system in an unblocked state is achieved;
2. the driving assembly comprises a driving screw and a driving block, the linkage assembly comprises a linkage shaft, and a first bevel gear, a second bevel gear, a third bevel gear and a fourth bevel gear are arranged, so that the effect of synchronously rotating a winding roller while heating the ring pipe to move is achieved, and the winding roller winds or unwinds a water inlet hose and a water outlet hose;
3. the installation of the ground molten iron fire fighting pipeline antifreezing device is completed through detection, installation of a fixing frame, installation of a heating ring pipe and assembly.
Drawings
Fig. 1 is a schematic structural view of an antifreezing device for a subway water fire pipeline according to an embodiment of the application.
Fig. 2 is a schematic structural view of another view angle of the subway water fire pipe antifreeze device according to the embodiment of the application.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Reference numerals illustrate:
1. a fixing frame; 11. a temperature sensor; 2. the pipeline is easy to freeze; 3. heating the annular tube; 31. an arc tube; 32. a first connection plate; 33. a second connecting plate; 34. a first pipe; 35. a first valve; 36. a second pipe; 37. a second valve; 4. a water heater; 5. a water inlet hose; 6. a water outlet hose; 7. a drive assembly; 71. driving a screw; 72. a driving block; 721. a guide groove; 73. a guide rod; 74. a driving motor; 8. winding a roller; 81. a receiving groove; 82. a baffle ring; 9. a linkage assembly; 91. a linkage shaft; 92. a first bevel gear; 93. a second bevel gear; 94. a third bevel gear; 95. and a fourth bevel gear.
Detailed Description
The application is described in further detail below with reference to fig. 1-3.
The embodiment of the application discloses an antifreezing device for a subway water fire pipeline.
Referring to fig. 1 and 2, the subway water fire pipeline antifreezing device comprises a fixing frame 1, wherein the fixing frame 1 is fixedly connected to a pipeline 2 which is easy to freeze. The fixing frame 1 is connected with a heating ring pipe 3 in a sliding way, and the heating ring pipe 3 is sleeved on the easily frozen pipeline 2 in a sliding way. The fixing frame 1 is provided with a water heater 4, and a water inlet hose 5 and a water outlet hose 6 are communicated between the heating ring pipe 3 and the water heater 4. The water inlet hose 5 is communicated with the water outlet of the water heater 4, the water inlet hose 5 is used for filling water into the heating ring pipe 3, the water outlet hose 6 is communicated with the water inlet of the water heater 4, and the water outlet hose 6 is used for discharging water in the heating ring pipe 3 into the water heater 4.
After the water heater 4 fills the heating loop 3 with hot water, the heating loop 3 on the easily frozen pipeline 2 is moved back and forth, so that the heating loop 3 heats the easily frozen pipeline 2, and the possibility of freezing the easily frozen pipeline 2 is reduced.
Referring to fig. 2 and 3, the heating collar 3 includes two arc-shaped pipes 31, the arc-shaped pipes 31 are semicircular pipes, and the two arc-shaped pipes 31 are in a circular ring shape after being in butt joint communication. Four first connecting plates 32 are fixedly connected to one of the arc-shaped pipes 31, and the four first connecting plates 32 are uniformly distributed at two ends of the arc-shaped pipe 31. Four second connecting plates 33 are fixedly connected to the other arc-shaped pipe 31, and when the two arc-shaped pipes 31 are communicated, the first connecting plates 32 and the second connecting plates 33 are correspondingly attached one by one.
Referring to fig. 3, each set of the corresponding first and second connection plates 32 and 33 is fixed by bolts and nuts, thereby achieving detachable connection of the two arc-shaped pipes 31.
Referring to fig. 3, one of the arc tubes 31 is provided with a first pipe 34, the first pipe 34 is provided with a first valve 35, and the first pipe 34 is connected with the water inlet hose 5. The other arc tube 31 is communicated with a second pipeline 36, a second valve 37 is arranged on the second pipeline 36, and the second pipeline 36 is communicated with the water outlet hose 6.
When filling the heating collar 3 with water, the first valve 35 is opened, the second valve 37 is closed, and the water heater 4 introduces hot water into the heating collar 3 through the water inlet hose 5. When the water temperature in the heating loop 3 is reduced, the cold water in the heating loop 3 needs to be discharged, at the moment, the second valve 37 is opened, the first valve 35 is closed, the water in the heating loop 3 is pumped out by the water pump in the water heater 4, and the water heater 4 heats the reflowed cold water and stores the reflowed cold water.
Referring to fig. 1, a driving assembly 7 for driving the heating collar 3 to move is connected to the fixing frame 1, the driving assembly 7 comprises a driving screw 71 and a driving block 72, the driving screw 71 is rotatably connected to the fixing frame 1, the axis of the driving screw 71 is parallel to the axis of the heating collar 3, and the driving block 72 is in threaded connection with the driving screw 71. The fixed frame 1 is fixedly connected with a guide rod 73, the guide rod 73 is parallel to the driving screw 71, the driving block 72 is provided with a guide groove 721, the guide rod 73 is arranged in the guide groove 721 in a penetrating mode, the driving block 72 is arranged on the guide rod 73 in a sliding mode, and the guide rod 73 plays a role in guiding the sliding of the driving block 72. The driving block 72 is fixedly connected with one of the arc tubes 31.
Referring to fig. 1, a driving unit for driving a driving screw 71 to rotate is fixed on a fixing frame 1, the driving unit includes a driving motor 74, and an output shaft of the driving motor 74 is coaxially connected with the driving screw 71.
When the heating collar 3 needs to be driven to move, the driving motor 74 is started, the driving motor 74 drives the driving screw 71 to rotate, the driving screw 71 drives the driving block 72 to slide, and the driving block 72 drives the heating collar 3 to move along the length direction of the easily frozen pipeline 2. The effect of driving the heating collar 3 to reciprocate is achieved by the forward and reverse rotation of the output shaft of the driving motor 74.
Referring to fig. 1 and 2, a winding roller 8 is rotatably connected to the fixed frame 1, and an axis of the winding roller 8 is perpendicular to an axis of the driving screw 71. One end of the winding roller 8 is provided with a containing groove 81, and the water heater 4 is arranged in the containing groove 81. The water heater 4 is self-powered, does not need wiring, and can periodically replace a power supply or charge the power supply. Both the water inlet hose 5 and the water outlet hose 6 are wound on a winding roller 8.
Referring to fig. 1, a linkage assembly 9 is connected to the driving assembly 7, and the linkage assembly 9 is used for driving the winding roller 8 to rotate.
Referring to fig. 1, the linkage assembly 9 includes a linkage shaft 91, the linkage shaft 91 is respectively perpendicular to the driving screw 71 and the winding roller 8, the linkage shaft 91 is rotatably connected to the fixing frame 1, one end of the driving screw 71 is coaxially connected to a first bevel gear 92, one end of the linkage shaft 91 is coaxially connected to a second bevel gear 93, the other end is coaxially connected to a third bevel gear 94, and one end of the winding roller 8 is coaxially connected to a fourth bevel gear 95. The first bevel gear 92 and the second bevel gear 93 are meshed, and the third bevel gear 94 and the fourth bevel gear 95 are meshed.
When the driving screw 71 rotates, the driving screw 71 drives the first bevel gear 92 to rotate, the first bevel gear 92 drives the second bevel gear 93 to rotate, the second bevel gear 93 drives the linkage shaft 91 to rotate, and the linkage shaft 91 drives the third bevel gear 94 to rotate. The third bevel gear 94 drives the fourth bevel gear 95 to rotate, and the fourth bevel gear 95 drives the winding roller 8 to rotate. When the winding roller 8 rotates, the water inlet hose 5 and the water outlet hose 6 are wound or unwound, so that the regularity of the water inlet hose 5 and the water outlet hose 6 is improved.
Referring to fig. 1, a baffle ring 82 is fixedly sleeved in the middle of the winding roller 8, the baffle ring 82 is positioned between the water inlet hose 5 and the water outlet hose 6, the baffle ring 82 separates the water inlet hose 5 and the water outlet hose 6, the possibility of mutual interference between the water inlet hose 5 and the water outlet hose 6 is reduced, and the regularity of the water inlet hose 5 and the water outlet hose 6 is further improved.
Referring to fig. 1 and 2, a temperature sensor 11 is fixed to the fixing frame 1, and the temperature sensor 11 is used for detecting the temperature of air around the easily frozen pipe 2, so as to determine whether the easily frozen pipe 2 is at risk of freezing. When the temperature is below the set point, the freezable pipe 2 is heated by the heating loop 3. When the temperature is higher than the set value, the driving assembly 7 and the water heater 4 are not operated, thereby saving electric energy.
The implementation principle of the subway water fire pipeline antifreezing device provided by the embodiment of the application is as follows: when the temperature sensor 11 detects that the temperature of the air around the easily frozen pipe 2 is lower than the set value, the first valve 35 is opened, the second valve 37 is closed, and the water heater 4 introduces hot water into the heating loop 3 through the water inlet hose 5. After the heating collar 3 is filled with hot water, the first valve 35 is closed and the drive motor 74 is started.
The driving motor 74 drives the driving screw 71 to rotate, the driving screw 71 drives the driving block 72 to slide, and the driving block 72 drives the heating loop 3 to move along the length direction of the easily frozen pipeline 2. The effect of driving the heating collar 3 to reciprocate is achieved by the forward and reverse rotation of the output shaft of the driving motor 74. The heating ring pipe 3 heats the easily frozen pipeline, thereby achieving the anti-freezing effect.
When the driving screw 71 rotates, the driving screw 71 drives the first bevel gear 92 to rotate, the first bevel gear 92 drives the second bevel gear 93 to rotate, the second bevel gear 93 drives the linkage shaft 91 to rotate, and the linkage shaft 91 drives the third bevel gear 94 to rotate. The third bevel gear 94 drives the fourth bevel gear 95 to rotate, and the fourth bevel gear 95 drives the winding roller 8 to rotate. When the winding roller 8 rotates, the water inlet hose 5 and the water outlet hose 6 are wound or unwound, so that the regularity of the water inlet hose 5 and the water outlet hose 6 is improved.
When the water temperature in the heating loop 3 is reduced, the second valve 37 is opened, the water pump in the water heater 4 pumps out the water in the heating loop 3, and the water heater 4 heats the returned cold water and stores the heated water. The second valve 37 is then closed and the first valve 35 is opened, and the water heater 4 again fills the heating collar 3 so that the heating collar 3 can continue to operate. Therefore, the easily frozen pipeline of the fire-fighting pipeline system is kept in an unblocked state.
The embodiment of the application also discloses an installation method of the subway water fire pipeline antifreezing device, which comprises the following steps:
s1, detecting: the worker detects the easily frozen pipeline 2 of the ground molten iron fire-fighting pipeline according to experience or low-temperature environment;
s2, installing a fixing frame 1: a fixing frame 1 with proper length is selected according to the length of the easily frozen pipeline 2, so that the whole easily frozen pipeline 2 can be covered in the moving process of the heating ring pipe 3;
s3, installing a heating ring pipe 3: the two arc-shaped pipes 31 are respectively sleeved on the easily-frozen pipeline 2, and then the two arc-shaped pipes 31 are connected in a matched manner through bolts and nuts;
s4, assembling: the heating loop 3 is connected with the driving block 72 in the fixing frame 1, and the water inlet hose 5 and the water outlet hose 6 are communicated between the heating loop 3 and the water heater 4.
The mounting method of the subway water fire pipeline antifreezing device provided by the embodiment of the application comprises the following steps: detecting, installing a fixing frame 1, installing a heating annular pipe 3, assembling, firstly, detecting the easily frozen section of the ground molten iron fire-fighting pipeline by workers, then selecting the fixing frame 1 with proper length according to the length of the easily frozen pipeline 2, then sleeving two arc-shaped pipes 31 on the easily frozen pipeline 2, fixing the two arc-shaped pipes 31 through bolts, and forming the heating annular pipe 3 after the two arc-shaped pipes 31 are communicated. Finally, the water inlet hose 5 and the water outlet hose 6 are communicated between the heating ring pipe 3 and the water heater 4, and the installation is completed.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (6)
1. The utility model provides a subway water fire control pipeline freeze-proof device which characterized in that: including mount (1), mount (1) is fixed on easy freezing pipeline (2), sliding connection has heating ring canal (3) on mount (1), heating ring canal (3) cover is established on easy freezing pipeline (2), heating ring canal (3) are including two arc pipes (31), two arc pipe (31) can dismantle the connection, two arc pipe (31) combination is the ring form, be connected with on mount (1) and be used for the drive heating ring canal (3) are along easy freezing pipeline (2) length direction reciprocating motion's actuating assembly (7), the last intercommunication of heating ring canal (3) has into water hose (5) and play water hose (6), the junction of water hose (5) with heating ring canal (3) is provided with first valve (35), play water hose (6) with the junction of heating ring canal (3) is provided with second valve (37), be connected with on mount (1) around roller (8), it is perpendicular to wind roller (8) along easy freezing pipeline (2) length direction reciprocating movement's actuating assembly (7), it is in water hose (8) to go out water hose (3) junction in the water hose (8), the water inlet hose (5) is communicated with the water outlet of the water heater (4), the water outlet hose (6) is communicated with the water inlet of the water heater (4), the driving assembly (7) is connected with the linkage assembly (9), and the linkage assembly (9) is used for driving the winding roller (8) to rotate;
the driving assembly (7) comprises a driving screw (71) and a driving block (72), the driving screw (71) is rotationally connected to the fixing frame (1), the axis of the driving screw (71) is parallel to the axis of the heating ring pipe (3), the driving block (72) is in threaded connection with the driving screw (71), the driving block (72) is in sliding connection with the fixing frame (1), the driving block (72) is fixedly connected with the heating ring pipe (3), and a driving element for driving the driving screw (71) to rotate is connected to the fixing frame (1);
the linkage assembly (9) comprises a linkage shaft (91), the linkage shaft (91) is rotationally connected to the fixing frame (1), the linkage shaft (91) is perpendicular to the driving screw (71) and the winding roller (8) respectively, a first bevel gear (92) is coaxially connected to the driving screw (71), a second bevel gear (93) and a third bevel gear (94) are coaxially connected to the linkage shaft (91), the first bevel gear (92) is meshed with the second bevel gear (93), a fourth bevel gear (95) is coaxially connected to the winding roller (8), and the third bevel gear (94) is meshed with the fourth bevel gear (95).
2. The subway water fire pipe antifreeze apparatus according to claim 1, wherein: one of the arc-shaped pipes (31) is fixedly connected with a first connecting plate (32), the other arc-shaped pipe (31) is fixedly connected with a second connecting plate (33), and the first connecting plate (32) and the second connecting plate (33) are fixed through bolts and nuts.
3. The subway water fire pipe antifreeze apparatus according to claim 1, wherein: the fixing frame (1) is fixedly connected with a guide rod (73), the driving block (72) is provided with a guide groove (721), the guide rod (73) is arranged in the guide groove (721) in a penetrating mode, and the guide rod (73) is parallel to the driving screw (71).
4. The subway water fire pipe antifreeze apparatus according to claim 1, wherein: the winding roller (8) is fixedly sleeved with a baffle ring (82), and the baffle ring (82) is positioned between the water inlet hose (5) and the water outlet hose (6).
5. The subway water fire pipe antifreeze apparatus according to claim 1, wherein: the fixing frame (1) is connected with a temperature sensor (11).
6. A method of installing a subway water fire pipe antifreeze apparatus according to any one of claims 1 to 5, wherein:
the method comprises the following steps:
s1, detecting: detecting an easily frozen pipeline (2) of the subway water fire pipeline;
s2, installing a fixing frame (1): selecting a fixing frame (1) with proper length according to the length of the easily-frozen pipeline (2);
s3, installing a heating annular pipe (3): the two arc-shaped pipes (31) are respectively sleeved on the easily frozen pipeline (2), and then the two arc-shaped pipes (31) are connected;
s4, assembling: the heating ring pipe (3) is connected with a driving component (7) in the fixing frame (1), and the water inlet hose (5) and the water outlet hose (6) are both communicated between the heating ring pipe (3) and the water heater (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111679608.8A CN114321547B (en) | 2021-12-31 | 2021-12-31 | Subway water fire-fighting pipeline anti-freezing device and installation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111679608.8A CN114321547B (en) | 2021-12-31 | 2021-12-31 | Subway water fire-fighting pipeline anti-freezing device and installation method thereof |
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| CN114321547A CN114321547A (en) | 2022-04-12 |
| CN114321547B true CN114321547B (en) | 2023-09-22 |
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| CN214272247U (en) * | 2020-11-11 | 2021-09-24 | 李艳 | Water conservancy water and electricity pipeline freeze-proof device |
| CN214884067U (en) * | 2021-07-10 | 2021-11-26 | 沈洪臻 | Water conservancy and hydropower equipment freeze-proof device |
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2021
- 2021-12-31 CN CN202111679608.8A patent/CN114321547B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR864602A (en) * | 1940-04-02 | 1941-05-01 | Detectif | Frost protection device |
| US4423311A (en) * | 1981-01-19 | 1983-12-27 | Varney Sr Paul | Electric heating apparatus for de-icing pipes |
| KR100889776B1 (en) * | 2008-07-08 | 2009-03-19 | 주식회사 한국종합기술 | Apparatus for preventing winter damage of water pipe |
| CN103438595A (en) * | 2013-08-13 | 2013-12-11 | 上海交通大学 | Solar water heater wind energy motive power pipeline water circulation anti-freezing device |
| CN208546653U (en) * | 2018-06-06 | 2019-02-26 | 蒋磊静 | A kind of hydraulic engineering pipe defroster |
| CN214272247U (en) * | 2020-11-11 | 2021-09-24 | 李艳 | Water conservancy water and electricity pipeline freeze-proof device |
| CN214277302U (en) * | 2021-03-16 | 2021-09-24 | 石家庄晶石建筑工程技术有限公司 | Building curtain wall automatic detection equipment |
| CN214884067U (en) * | 2021-07-10 | 2021-11-26 | 沈洪臻 | Water conservancy and hydropower equipment freeze-proof device |
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| Publication number | Publication date |
|---|---|
| CN114321547A (en) | 2022-04-12 |
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