CN216279980U - High-sealing steam rotary joint - Google Patents
High-sealing steam rotary joint Download PDFInfo
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- CN216279980U CN216279980U CN202122814907.XU CN202122814907U CN216279980U CN 216279980 U CN216279980 U CN 216279980U CN 202122814907 U CN202122814907 U CN 202122814907U CN 216279980 U CN216279980 U CN 216279980U
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Abstract
The utility model relates to the technical field of rotary joints, and discloses a high-sealing steam rotary joint which comprises a shell, wherein an end cover is arranged at the left end of the shell, a steam inlet pipe is arranged at the right end of the shell, and a temperature sensor assembly is arranged in the steam inlet pipe; the shell is internally provided with an air duct, the outer surface of the air duct is sleeved with a rotary drum, and a plurality of graphite bearings are arranged between the rotary drum and the shell; the right-hand member inner bore department of casing is equipped with first interior conical surface, second interior conical surface, and the right-hand member of air duct is equipped with first external conical surface, and the right-hand member of rotary drum is equipped with the second external conical surface, and the right-hand member outer wall department of rotary drum is equipped with twice bulge loop, all is equipped with sealing washer I between the periphery of bulge loop and the casing, forms the annular chamber between the twice bulge loop, and the side of rotary drum is equipped with the water conservancy diversion hole with the annular chamber intercommunication, and the side of casing is equipped with the drain pipe with the annular chamber intercommunication. The steam temperature detector has the advantages of stable performance, good sealing effect and capability of detecting the steam temperature.
Description
Technical Field
The utility model relates to the technical field of rotary joints, in particular to a high-sealing steam rotary joint.
Background
A rotary joint is a joint seal for the delivery of a fluid medium from a stationary pipe to a rotating or reciprocating device to provide a heating or cooling medium to the mechanism that is in rotary motion. The steam rotary joint is used for introducing steam, high-temperature steam enters the equipment from one end of the rotary joint, the steam and the equipment change into liquid after heat exchange, and the liquid is discharged through the rotary joint; because the steam rotating joint has the advantages that the steam and the liquid flow inside, and the structure of an inner cavity channel of the steam rotating joint is more complex, the requirement on the sealing performance is higher, the sealing stability of the conventional steam rotating joint is poor, and the leakage is easy to occur after the conventional steam rotating joint is used for a period of time.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems of a steam rotary joint in the prior art, and provides a high-sealing steam rotary joint which is stable in performance, good in sealing effect and capable of detecting steam temperature.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a high-sealing steam rotary joint comprises a shell, wherein an end cover is arranged at the left end of the shell, a steam inlet pipe is arranged at the right end of the shell, and a temperature sensor assembly is arranged in the steam inlet pipe; the steam generator is characterized in that an air guide tube is arranged in the shell, the right end of the air guide tube is communicated with a steam inlet tube, a rotary drum is sleeved outside the air guide tube, the right end of the rotary drum is connected with the air guide tube in a rotating and sealing mode, a flow guide gap is formed between the air guide tube and the rotary drum, and a plurality of graphite bearings are arranged between the rotary drum and the shell; the improved rotary drum is characterized in that a first inner conical surface and a second inner conical surface which is coaxial with the first inner conical surface are arranged at the inner hole of the right end of the casing, a first outer conical surface matched with the first inner conical surface is arranged at the right end of the air guide tube, a second outer conical surface matched with the second inner conical surface is arranged at the right end of the rotary drum, two convex rings are arranged at the outer wall of the right end of the rotary drum, a sealing ring I is arranged between the circumferential surface of each convex ring and the casing, a ring cavity is formed between the two convex rings, a flow guide hole communicated with the ring cavity is formed in the side surface of the rotary drum, and a liquid outlet pipe communicated with the ring cavity is arranged in the side surface of the casing. Steam enters the steam inlet pipe, enters the equipment from the air guide pipe to exchange heat with the inside of the equipment, the steam after heat exchange is changed into liquid and flows into the flow guide gap, and the liquid in the flow guide gap enters the annular cavity through the flow guide holes and is discharged from the liquid outlet pipe; the right ends of the air guide pipe and the rotary drum and the shell are matched through conical surfaces, so that automatic centering is realized, the assembly is convenient, the precision is high, the sealing performance is good, and the liquid medium and the graphite bearing are completely isolated by the two convex rings and the sealing ring I, so that the working performance of the graphite bearing is more stable; the temperature sensor assembly is also capable of detecting the real-time temperature of the steam.
Preferably, an annular groove is formed in the right end of the first inner conical surface, a sealing filler I is filled at the bottom of the annular groove, a limiting step is arranged at the left end, located on the first outer conical surface, of the outer wall of the air guide tube, a thrust bearing is arranged between the right end of the rotary drum and the limiting step, and a pressure spring is sleeved on the outer side of the left end of the rotary drum. Under the action of the pressure spring, the right end of the rotary drum is abutted against the thrust bearing, so that the rotary drum rotates more stably and is not easy to block; the pressure spring can also make the right-hand member face crimping of air duct seal filler I, further improves sealing performance.
Preferably, the outside of air duct is located thrust bearing's right side and is equipped with the clamping ring, be equipped with sealing washer II between the right side of clamping ring and the spacing ladder, be equipped with sealing washer III between the right-hand member inboard of rotary drum and the air duct. And the sealing rings II and III are used for improving the sealing performance.
Preferably, a supporting bearing is arranged on the outer side of the rotary drum in the end cover, the left end of the pressure spring is abutted to the supporting bearing, a check ring is arranged at the left end of the supporting bearing, and a sealing ring IV is arranged at the left end of the check ring. The sealing ring IV can prevent external dust and moisture from entering the end cover, so that the pressure spring and the graphite bearing are protected, the overall stability is improved, and the service life is prolonged.
Preferably, the shell is connected with the end cover through a flange and a bolt, and a sealing gasket is arranged between two flange surfaces. The sealing gasket prevents the flange joint from leaking.
Preferably, the temperature sensor assembly comprises a heat pipe and a temperature sensor located in the heat pipe, a through hole is formed in the side wall of the steam inlet pipe, the inner end of the heat pipe penetrates through the through hole to extend into the central position inside the steam inlet pipe, the inner end of the heat pipe is sealed, a data connector connected with the temperature sensor is arranged at the outer end of the heat pipe, a sealing filler II is arranged between the outer end of the heat pipe and the through hole, and a threaded ring used for pressing the sealing filler is arranged at the outer end of the through hole. The temperature of heat pipe is unanimous with the temperature of steam, and the temperature that temperature sensor detected is the same with the temperature of steam, and the heat pipe keeps apart temperature sensor and steam completely, plays the guard action to temperature sensor, improves temperature sensor's life, and temperature sensor's change is also very convenient moreover.
Therefore, the steam temperature detector has the advantages of stable performance, good sealing effect and capability of detecting the steam temperature.
Drawings
FIG. 1 is a schematic diagram of a structure of the present invention.
Fig. 2 is a schematic view of the internal structure of fig. 1.
FIG. 3 is a schematic view of the connection between the gas-guiding tube and the rotary drum.
Fig. 4 is a schematic view of the internal structure of the housing.
Fig. 5 is a cross-sectional view taken at a-a in fig. 1.
In the figure: the device comprises a shell 1, a first inner conical surface 100, a second inner conical surface 101, an annular groove 102, a sealing filler I103, an end cover 2, a steam inlet pipe 3, a temperature sensor assembly 4, a heat conduction pipe 40, a temperature sensor 41, a data connector 42, a sealing filler II 43, a threaded ring 44, an air guide pipe 5, a first outer conical surface 50, a limiting step 51, a rotary drum 6, a second outer conical surface 60, a convex ring 61, a sealing ring I62, an annular cavity 63, a flow guide hole 64, a flow guide gap 7, a graphite bearing 8, a thrust bearing 9, a pressing ring 90, a liquid outlet pipe 10, a sealing ring II 11, a sealing ring III 12, a pressure spring 13, a support bearing 14, a retainer ring 15 and a sealing ring IV 16.
Detailed Description
The utility model is further described with reference to the accompanying drawings and the detailed description below:
as shown in fig. 1-4, the high-sealing steam rotary joint comprises a casing 1, an end cover 2 is arranged at the left end of the casing 1, the casing and the end cover are connected through flanges and bolts, a sealing gasket is arranged between two flange surfaces, a steam inlet pipe 3 is arranged at the right end of the casing 1, and a temperature sensor assembly 4 is arranged in the steam inlet pipe; an air duct 5 is arranged in the shell 1, the right end of the air duct 5 is communicated with the steam inlet pipe 3, a rotary drum 6 is sleeved outside the air duct 5, the right end of the rotary drum 6 is in rotary sealing connection with the air duct 5, a flow guide gap 7 is arranged between the air duct 5 and the rotary drum, and a plurality of graphite bearings 8 are arranged between the rotary drum 6 and the shell; a first inner conical surface 100 and a second inner conical surface 101 which is coaxial with the first inner conical surface are arranged at the inner hole of the right end of the shell 1, a first outer conical surface 50 which is matched with the first inner conical surface is arranged at the right end of the air guide pipe 5, a second outer conical surface 60 which is matched with the second inner conical surface is arranged at the right end of the rotary drum 6, an annular groove 102 is arranged at the right end of the first inner conical surface 100, a sealing filler I103 is filled at the bottom of the annular groove 102, a limiting step 51 is arranged at the left end, located at the outer wall of the air guide pipe 5, of the first outer conical surface, and a thrust bearing 9 is arranged between the right end of the rotary drum 6 and the limiting step 51; two convex rings 61 are arranged on the outer wall of the right end of the rotary drum 6, a sealing ring I62 is arranged between the circumferential surface of each convex ring and the shell, a ring cavity 63 is formed between the two convex rings, a flow guide hole 64 communicated with the ring cavity is formed in the side surface of the rotary drum 6, and a liquid outlet pipe 10 communicated with the ring cavity is formed in the side surface of the shell 1.
A press ring 90 is arranged on the outer side of the air guide pipe 5 and positioned on the right side of the thrust bearing 9, a sealing ring II 11 is arranged between the right side of the press ring 90 and the limiting step 51, a sealing ring III 12 is arranged between the inner side of the right end of the rotary drum 6 and the air guide pipe, and a pressure spring 13 is sleeved on the outer side of the left end of the rotary drum; a supporting bearing 14 is arranged on the outer side of the rotary drum in the end cover 2, the left end of the pressure spring 13 is abutted to the supporting bearing, a retainer ring 15 is arranged at the left end of the supporting bearing 14, and a seal ring IV 16 is arranged at the left end of the retainer ring 15.
As shown in fig. 5, the temperature sensor assembly 4 includes a heat pipe 40 and a temperature sensor 41 located in the heat pipe, a through hole is formed in a side wall of the steam inlet pipe, an inner end of the heat pipe 40 passes through the through hole and extends into a central position inside the steam inlet pipe, the inner end of the heat pipe is closed, a data connector 42 connected with the temperature sensor is arranged at an outer end of the heat pipe 40, a sealing filler ii 43 is arranged between the outer end of the heat pipe 40 and the through hole, and a threaded ring 44 for pressing the sealing filler is arranged at the outer end of the through hole.
The principle of the utility model is as follows with reference to the attached drawings: as shown in fig. 2, steam enters the steam inlet pipe, enters the equipment from the air duct to exchange heat with the inside of the equipment, the steam after heat exchange is changed into liquid and then flows into the diversion gap, and the liquid in the diversion gap enters the annular cavity through the diversion holes and then is discharged from the liquid outlet pipe; the right ends of the air guide pipe and the rotary drum and the shell are matched through conical surfaces, so that automatic centering is realized, the assembly is convenient, the precision is high, the sealing performance is good, and the liquid medium and the graphite bearing are completely isolated by the two convex rings and the sealing ring I, so that the working performance of the graphite bearing is more stable; the temperature sensor assembly is also capable of detecting the real-time temperature of the steam. The steam temperature detector has the advantages of stable performance, good sealing effect and capability of detecting the steam temperature.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are within the scope of the present invention.
Claims (6)
1. A high-sealing steam rotary joint comprises a shell and is characterized in that an end cover is arranged at the left end of the shell, a steam inlet pipe is arranged at the right end of the shell, and a temperature sensor assembly is arranged in the steam inlet pipe; the steam generator is characterized in that an air guide tube is arranged in the shell, the right end of the air guide tube is communicated with a steam inlet tube, a rotary drum is sleeved outside the air guide tube, the right end of the rotary drum is connected with the air guide tube in a rotating and sealing mode, a flow guide gap is formed between the air guide tube and the rotary drum, and a plurality of graphite bearings are arranged between the rotary drum and the shell; the improved rotary drum is characterized in that a first inner conical surface and a second inner conical surface which is coaxial with the first inner conical surface are arranged at the inner hole of the right end of the casing, a first outer conical surface matched with the first inner conical surface is arranged at the right end of the air guide tube, a second outer conical surface matched with the second inner conical surface is arranged at the right end of the rotary drum, two convex rings are arranged at the outer wall of the right end of the rotary drum, a sealing ring I is arranged between the circumferential surface of each convex ring and the casing, a ring cavity is formed between the two convex rings, a flow guide hole communicated with the ring cavity is formed in the side surface of the rotary drum, and a liquid outlet pipe communicated with the ring cavity is arranged in the side surface of the casing.
2. The high-sealing steam rotary joint according to claim 1, wherein the right end of the first inner conical surface is provided with an annular groove, the bottom of the annular groove is filled with sealing filler I, the outer wall of the air duct at the left end of the first outer conical surface is provided with a limiting step, a thrust bearing is arranged between the right end of the rotary drum and the limiting step, and the outer side of the left end of the rotary drum is sleeved with a pressure spring.
3. The high-sealing steam rotary joint according to claim 2, wherein a pressure ring is arranged on the outer side of the air guide tube on the right side of the thrust bearing, a sealing ring II is arranged between the right side of the pressure ring and the limiting step, and a sealing ring III is arranged between the inner side of the right end of the rotary drum and the air guide tube.
4. The high-sealing steam rotary joint as claimed in claim 2, wherein a support bearing is arranged on the outer side of the rotary drum in the end cover, the left end of the pressure spring abuts against the support bearing, the left end of the support bearing is provided with a retaining ring, and the left end of the retaining ring is provided with a sealing ring IV.
5. The high-sealing steam rotary joint as claimed in claim 1, wherein the casing is connected with the end cover through flanges and bolts, and a sealing gasket is arranged between two flange surfaces.
6. The high-sealing steam rotary joint as claimed in claim 1, wherein the temperature sensor assembly comprises a heat conducting pipe and a temperature sensor arranged in the heat conducting pipe, a through hole is formed in the side wall of the steam inlet pipe, the inner end of the heat conducting pipe penetrates through the through hole and extends into the central position inside the steam inlet pipe, the inner end of the heat conducting pipe is closed, a data connector connected with the temperature sensor is arranged at the outer end of the heat conducting pipe, a sealing filler II is arranged between the outer end of the heat conducting pipe and the through hole, and a threaded ring used for pressing the sealing filler is arranged at the outer end of the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122814907.XU CN216279980U (en) | 2021-11-15 | 2021-11-15 | High-sealing steam rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122814907.XU CN216279980U (en) | 2021-11-15 | 2021-11-15 | High-sealing steam rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216279980U true CN216279980U (en) | 2022-04-12 |
Family
ID=81010307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122814907.XU Active CN216279980U (en) | 2021-11-15 | 2021-11-15 | High-sealing steam rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216279980U (en) |
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2021
- 2021-11-15 CN CN202122814907.XU patent/CN216279980U/en active Active
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