CN223282213U - Improved sealing connection structure of twin-screw pump unit - Google Patents
Improved sealing connection structure of twin-screw pump unitInfo
- Publication number
- CN223282213U CN223282213U CN202422454943.3U CN202422454943U CN223282213U CN 223282213 U CN223282213 U CN 223282213U CN 202422454943 U CN202422454943 U CN 202422454943U CN 223282213 U CN223282213 U CN 223282213U
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- flange
- sealing ring
- sealing
- fixedly connected
- groove
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Abstract
The utility model relates to the field of double-screw pumps, in particular to an improved sealing connection structure of a double-screw pump unit, which comprises a first connector, a first fixed disk, a first flange, a second flange, a sealing ring, a second fixed disk and a second connector, wherein the first fixed disk is fixedly connected to the right side of the first connector, the first flange is fixedly connected to the right side of the first fixed disk, the second flange is arranged on the right side of the first flange, the sealing ring is rotatably arranged on the outer sides of the first flange and the second flange, the second fixed disk is fixedly arranged on the right side of the second flange, the second connector is fixedly connected to the right side of the second fixed disk, the joint is sealed by multiple sealing rings, a sealing ring is arranged in a groove of the flange, the sealing ring embedded in the flange exerts a sealing effect by applying pressure to the flange, the sealing ring on the outer side of the flange is provided with a sealing hoop, and the sealing ring on the outer side of the flange is provided with a thin-wall sleeve by applying pressure to the connecting buckle.
Description
Technical Field
The utility model relates to the field of double-screw pumps, in particular to an improved sealing connection structure of a double-screw pump unit.
Background
The sealing connection structure of the twin screw pump unit is a device for connecting a pump to a pipe system to ensure that fluid is not leaked during the transfer process, and generally includes components such as flanges, gaskets, fasteners, etc. that work together to provide sufficient sealing force to prevent fluid from overflowing from the connection, and a good sealing connection structure is critical to ensure the safety and efficiency of the fluid delivery system.
At present, the sealing connection structure of the common double-screw pump unit comprises flange connection, welding connection, threaded connection and the like, the uniformity of bolt pretightening force is difficult to control, sealing failure is easy to cause, the welding connection can provide good sealing performance, but the welding process is complex, the skill requirement on an operator is high, and once the welding quality is problematic, maintenance and replacement are very difficult.
Therefore, the improved sealing connection structure of the double-screw pump unit can be designed to solve the problems that the sealing connection structure of the existing double-screw pump unit is complex in structure and poor in sealing effect, and the sealing connection positions are sealed by the aid of the multiple groups of sealing structures so that leakage of fluid in the transmission process is prevented.
Disclosure of utility model
In order to solve the problems of complex structure and poor sealing effect of the sealing connection structure of the existing double-screw pump unit, an improved sealing connection structure of the double-screw pump unit is provided.
The improved sealing connection structure of the double-screw pump unit comprises a first interface, a first fixing disc, a first bolt sleeve, a first flange, a second flange, a sealing ring, a second fixing disc, a second bolt sleeve and a second interface, wherein the first fixing disc is fixedly connected to the right side of the first interface, the first bolt sleeve is fixedly arranged on the outer side of the first fixing disc, the first flange is fixedly connected to the right side of the first fixing disc, the second flange is arranged on the right side of the first flange, the sealing ring is rotatably arranged on the outer sides of the first flange and the second flange, the second fixing disc is fixedly arranged on the right side of the second flange, the second bolt sleeve is fixedly arranged on the outer side of the second fixing disc, and the second interface is fixedly connected to the right side of the second fixing disc.
Preferably, the joint is sealed by adopting multiple sealing rings, two rings of grooves are formed in the flange, sealing rings are fixedly installed in the grooves, the first flange and the second flange on two sides are applied with pressure through the matching of the first bolt and the first nut, the embedded sealing rings of the flange exert sealing effect, sealing hoops are arranged on the outer sides of the first flange and the second flange, the sealing rings on the outer sides of the first flange and the second flange are applied with pressure through the matching of the second bolt and the second nut, the sealing rings on the outer sides of the first flange and the second flange play a sealing role, and a thin-wall sleeve is further arranged at the joint of the first joint and the second joint of the inner side, and the triple sealing structure enables the sealing effect to be good and the performance to be reliable.
Preferably, the first flange plate comprises a first screw hole, a first groove, a third sealing ring and a fourth sealing ring, the first screw hole is arranged on the first flange plate in an array mode, the first groove is formed in the right side of the first flange plate, the third sealing ring is arranged on the outer side of the first groove, and the fourth sealing ring is fixedly connected to the outer side of the first flange plate.
Preferably, the second flange plate comprises a second screw hole, a thin-wall sleeve, a fifth sealing ring, a second groove and a sixth sealing ring, the second screw hole is arranged on the second flange plate in an array mode, the thin-wall sleeve is fixedly connected to the inner side of the second flange plate, the fifth sealing ring is arranged on the left side of the second flange plate, the second groove is formed in the outer side of the fifth sealing ring, and the sixth sealing ring is fixedly connected to the outer side of the second flange plate.
Preferably, the sealing ring comprises a hoop, a connecting buckle, a groove III, a bolt II and a nut II, wherein the connecting buckle is fixedly connected to two sides of the hoop, the groove III is formed in the hoop, the bolt II is rotatably installed in a connecting buckle opening, and the nut II is arranged on the lower side of the connecting buckle.
Preferably, the first sealing ring is fixedly connected to the right side of the first screw thread, the first reinforcing rib is fixedly connected between the first sealing ring and the first fixing plate, the second sealing ring is fixedly connected to the left side of the second screw thread, and the second reinforcing rib is fixedly connected between the second sealing ring and the second fixing plate.
Preferably, a semicircular hole I matched with the bolt sleeve I is formed in the first fixing plate, a semicircular hole II matched with the bolt sleeve I is formed in the sealing ring, and the bolt I penetrates through the bolt sleeve I, the flange plate II and the bolt sleeve II to be rotatably installed in the nut I.
Preferably, the groove I in the flange plate I is matched with the seal ring V in the flange plate II, the groove II in the flange plate II is matched with the seal ring III in the flange plate I, and the seal ring IV and the seal ring VI are matched with the groove III in the hoop.
The flange has the beneficial effects that the joint is sealed by adopting multiple sealing rings, two rings of grooves are formed in the flange, sealing rings are fixedly arranged in the grooves, the first flange and the second flange at two sides are applied with pressure by matching the first bolt and the first nut, so that the sealing rings embedded in the flange exert sealing effect, sealing hoops are arranged at the outer sides of the first flange and the second flange, the sealing rings at the outer sides of the first flange and the second flange exert sealing effect by matching the second bolt and the second nut, and a thin-wall sleeve is further arranged at the joint of the first interface and the second interface at the inner side, and the triple sealing structure ensures good sealing effect and reliable performance.
Drawings
FIG. 1 is a schematic perspective view showing the whole structure of an improved sealing connection structure of a twin-screw pump unit according to the present utility model;
FIG. 2 is a schematic perspective view showing the whole cross-section of the improved sealing connection structure of the twin-screw pump unit of the present utility model;
FIG. 3 is a schematic perspective view of an improved sealing connection flange of the twin-screw pump assembly of the present utility model;
FIG. 4 shows a schematic view of a two-dimensional structure of a flange plate of an improved sealing connection structure of the double-screw pump unit of the utility model;
FIG. 5 shows a schematic perspective view of a sealing ring of the improved sealing connection structure of the twin-screw pump assembly of the present utility model;
FIG. 6 is a schematic perspective view showing an explosion diagram of an improved sealing connection structure of the twin-screw pump unit of the present utility model;
The reference numerals comprise 1, a first interface, 2, a first thread, 3, a first sealing ring, 4, a first fixing disc, 5, a first reinforcing rib, 6, a first bolt sleeve, 7, a first flange, 8, a second flange, 9, a first bolt, 10, a first nut, 12, a second fixing disc, 13, a second bolt sleeve, 14, a second interface, 15, a second reinforcing rib, 16, a second thread, 17, a second sealing ring, 18, a first screw hole, 19, a first groove, 20, a third sealing ring, 21, a fourth sealing ring, 22, a second screw hole, 23, a thin-wall sleeve, 24, a fifth sealing ring, 25, a second groove, 26, a sixth sealing ring, 27, a hoop, 28, a connecting buckle, 29, a third groove, 30, a second bolt, 31, a second nut, 32, a first semicircular hole, 33 and a second semicircular hole;
Detailed Description
The utility model is further described below with reference to the drawings and examples.
Referring to fig. 1-6, in this embodiment, the present utility model provides an improved sealing connection structure of a twin-screw pump unit, which includes a first connector 1, a first fixing plate 4, a first bolt sleeve 6, a first flange 7, a second flange 8, a sealing ring, a second fixing plate 12, a second bolt sleeve 13 and a second connector 14, wherein the first fixing plate 4 is fixedly connected to the right side of the first connector 1, the first bolt sleeve 6 is fixedly mounted on the outer side of the first fixing plate 4, the first flange 7 is fixedly connected to the right side of the first fixing plate 4, the second flange 8 is disposed on the right side of the first flange 7, the sealing ring is rotatably mounted on the outer sides of the first flange 7 and the second flange 8, the second fixing plate 12 is fixedly mounted on the right side of the second flange 8, the second bolt sleeve 13 is fixedly mounted on the outer side of the second fixing plate 12, the interface II 14 is fixedly connected to the right side of the fixing plate II 12, multiple sealing rings are adopted to seal the interface, two rings of grooves are formed in the flange, sealing rings are fixedly installed in the grooves, the first flange 7 and the second flange 8 on two sides are applied with pressure through the matching of the first bolt 9 and the first nut 10, the sealing rings embedded in the flanges exert sealing effects, sealing hoops 27 are arranged on the outer sides of the first flange 7 and the second flange 8, the connecting buckles 28 are applied with pressure through the matching of the second bolt 30 and the second nut 31, the sealing rings on the outer sides of the first flange 7 and the second flange 8 play a sealing role, and a thin-wall sleeve 23 is further arranged at the joint of the inner side interface I1 and the second interface II 14, and the triple sealing structure enables the sealing effect to be good and the performance to be reliable.
Referring to fig. 2-4, in the embodiment, the first flange 7 includes a first screw hole 18, a first groove 19, a third seal ring 20 and a fourth seal ring 21, the first screw hole 18 is arranged on the first flange 7 in an array, the first groove 19 is arranged on the right side of the first flange 7, the third seal ring 20 is arranged on the outer side of the first groove 19, the fourth seal ring 21 is fixedly connected to the outer side of the first flange 7, the seal ring is fixedly installed in the groove, a heavy sealing function is achieved, the second flange 8 includes a second screw hole 22, a thin-wall sleeve 23, a fifth seal ring 24, a second groove 25 and a sixth seal ring 26, the second screw hole 22 is arranged on the second flange 8 in an array, the thin-wall sleeve 23 is fixedly connected to the inner side of the second flange 8, the fifth seal ring 24 is arranged on the left side of the second flange 8, the second groove 25 is arranged on the outer side of the fifth seal ring 24, the sixth seal ring 26 is fixedly connected to the outer side of the second flange 8, the seal ring is fixedly installed in the groove, the sealing function is achieved, the thin-wall sleeve 23 is arranged on the inner side of the seal ring to prevent leakage, the seal ring includes a hoop 27, a connecting buckle 28, a third groove 29, a second bolt 30 and a second nut 31 are fixedly connected to the two sides of the connecting buckle 28, the hoop 27 is fixedly connected to the inner side of the hoop 27, the inner side of the groove 29 is fixedly connected to the hoop 28, and the inner side of the inner ring 29 is fixedly connected to the inner ring 28, and the nut is arranged on the inner side of the hoop 28, and the nut 28. The inner groove of the hoop 27 is matched with the sealing ring on the flange plate to play a role of secondary sealing.
Referring to fig. 5-6, in this embodiment, a first thread 2 is formed on the left side of the first port 1, a first sealing ring 3 is fixedly connected to the right side of the first thread 2, a first reinforcing rib 5 is fixedly connected between the first port 1 and the first fixing plate 4, a second thread 16 is formed on the right side of the second port 14, a second sealing ring 17 is fixedly connected to the left side of the second thread 16, a second reinforcing rib 15 is fixedly connected between the second port 14 and the second fixing plate 12, the threads at the joint of the port and the pump head are conveniently connected, the sealing ring plays a sealing role, a first semicircular hole 32 matched with the first bolt sleeve 6 is formed on the first fixing plate 4, a second semicircular hole 33 matched with the first bolt sleeve 6 is formed on the sealing ring, a first bolt 9 penetrates through the first bolt sleeve 6, the first flange plate 7, the second flange plate 8 and the second bolt sleeve 13, the first semicircular hole is a fixed providing a position for the first bolt sleeve, the second bolt sleeve disperses the pressure applied by the first bolt, a leakage phenomenon caused by overlarge pressure is prevented from occurring, a first groove 19 in the first flange plate 7 is matched with a second groove 24 in the second flange plate 8, a second groove 25 is matched with a third groove 25 in the second flange plate 7, a third groove is matched with a fourth groove 25 matched with the second groove in the second flange 7, a fourth groove is matched with the third groove 21 in the sealing ring, and a fourth groove is matched with the fourth groove is tightly matched with the fourth groove is prevented.
During operation, the first connector 1 is connected with the conveying pipeline through the first thread 2 or directly welded on the conveying pipeline, the second connector 14 is connected with the pump head of the double-screw pump through the second thread 16 or welded, then the first flange 7 is aligned with the second flange 8 and closed, the first bolt 9 penetrates through the first bolt sleeve 6, the first flange 7, the second flange 8 and the second bolt sleeve 13 to be rotatably arranged in the first nut 10, the first bolt 9 is screwed, the first flange 7 and the second flange 8 are mutually extruded, the third sealing ring 20 and the fifth sealing ring 24 seal the inside of the flange, meanwhile, the inner side thin-wall sleeve 23 of the second flange 8 also plays a sealing role on the inner side of the connecting structure, the hoop 27 is arranged on the upper side and the lower side of the closed position of the first flange 7 and the second flange 8, the second bolt 30 penetrates through the connecting buckle 28 to be rotatably arranged in the second bolt 30, locking of the hoop 27 is completed, the third groove 29 in the hoop 27 and the fourth sealing ring 21 on the first flange 7 are closed, and the sixth sealing ring 26 on the second flange 8 plays a sealing role.
Through the steps, the joint is sealed by adopting the multiple sealing rings, two rings of grooves are formed in the flange, sealing rings are fixedly installed in the grooves, the first flange 7 and the second flange 8 on two sides are applied with pressure through the matching of the first bolt 9 and the first nut 10, the sealing rings embedded in the flanges exert sealing effects, sealing hoops 27 are arranged on the outer sides of the first flange 7 and the second flange 8, the connecting buckles 28 are applied with pressure through the matching of the second bolt 30 and the second nut 31, the sealing rings on the outer sides of the first flange 7 and the second flange 8 play a sealing role, the thin-wall sleeve 23 is further arranged at the joint of the first interface 1 and the second interface 14 on the inner side, and the triple sealing structure enables the sealing effect to be good and the performance to be reliable.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.
Claims (7)
1. The improved sealing connection structure of the double-screw pump unit comprises a first interface (1), a first fixed disc (4), a first bolt sleeve (6), a second fixed disc (12), a second bolt sleeve (13) and a second interface (14), and is characterized by further comprising a first flange (7), a second flange (8) and a sealing ring, wherein the first fixed disc (4) is fixedly connected to the right side of the first interface (1), the first bolt sleeve (6) is fixedly arranged on the outer side of the first fixed disc (4), the first flange (7) is fixedly connected to the right side of the first fixed disc (4), the second flange (8) is arranged on the right side of the first flange (7), the sealing ring is rotatably arranged on the outer side of the first flange (7) and the second flange (8), the second fixed disc (12) is fixedly arranged on the right side of the second flange (8), the second bolt sleeve (13) is fixedly arranged on the outer side of the second flange (12), and the second interface (14) is fixedly connected to the right side of the second flange (12).
2. The improved sealing connection structure of the double-screw pump unit of claim 1, wherein the first flange plate (7) comprises a first screw hole (18), a first groove (19), a third sealing ring (20) and a fourth sealing ring (21), the first screw hole (18) is arranged on the first flange plate (7) in an array mode, the first groove (19) is formed in the right side of the first flange plate (7), the third sealing ring (20) is arranged on the outer side of the first groove (19), and the fourth sealing ring (21) is fixedly connected to the outer side of the first flange plate (7).
3. The improved sealing connection structure of the double-screw pump unit of claim 2, wherein the second flange plate (8) comprises a second screw hole (22), a thin-wall sleeve (23), a fifth sealing ring (24), a second groove (25) and a sixth sealing ring (26), the second screw hole (22) is arranged on the second flange plate (8) in an array mode, the thin-wall sleeve (23) is fixedly connected to the inner side of the second flange plate (8), the fifth sealing ring (24) is arranged on the left side of the second flange plate (8), the second groove (25) is formed in the outer side of the fifth sealing ring (24), and the sixth sealing ring (26) is fixedly connected to the outer side of the second flange plate (8).
4. The improved sealing connection structure of the double-screw pump unit according to claim 3, wherein the sealing ring comprises a hoop (27), a connecting buckle (28), a third groove (29), a second bolt (30) and a second nut (31), the connecting buckle (28) is fixedly connected to two sides of the hoop (27), the third groove (29) is formed in the hoop (27), the second bolt (30) is rotatably mounted in a mouth of the connecting buckle (28), and the second nut (31) is arranged on the lower side of the connecting buckle (28).
5. The improved sealing connection structure of a double-screw pump unit according to claim 4, wherein the first screw thread (2) is arranged on the left side of the first connector (1), the first sealing ring (3) is fixedly connected to the right side of the first screw thread (2), the first reinforcing rib (5) is fixedly connected between the first connector (1) and the first fixing disc (4), the second screw thread (16) is arranged on the right side of the second connector (14), the second sealing ring (17) is fixedly connected to the left side of the second screw thread (16), and the second reinforcing rib (15) is fixedly connected between the second connector (14) and the second fixing disc (12).
6. The improved sealing connection structure of a double-screw pump unit according to claim 5, wherein a semicircular hole I (32) matched with the bolt sleeve I (6) is formed in the fixed disc I (4), a semicircular hole II (33) matched with the bolt sleeve I (6) is formed in the sealing ring, and the bolt I (9) penetrates through the bolt sleeve I (6), the flange plate I (7), the flange plate II (8) and the bolt sleeve II (13) to be rotatably arranged in the nut I (10).
7. The improved sealing connection structure of a double-screw pump unit according to claim 6, wherein the groove I (19) in the flange I (7) is matched with the seal ring V (24) in the flange II (8), the groove II (25) in the flange II (8) is matched with the seal ring III (20) in the flange I (7), and the seal ring IV (21) and the seal ring VI (26) are matched with the groove III (29) in the hoop ring (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422454943.3U CN223282213U (en) | 2024-10-11 | 2024-10-11 | Improved sealing connection structure of twin-screw pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422454943.3U CN223282213U (en) | 2024-10-11 | 2024-10-11 | Improved sealing connection structure of twin-screw pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223282213U true CN223282213U (en) | 2025-08-29 |
Family
ID=96837761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422454943.3U Active CN223282213U (en) | 2024-10-11 | 2024-10-11 | Improved sealing connection structure of twin-screw pump unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223282213U (en) |
-
2024
- 2024-10-11 CN CN202422454943.3U patent/CN223282213U/en active Active
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