Liquid conveying double-screw pump with good sealing performance
By introducing components such as connecting blocks, fixing plates, annular plates, and sealing airbags at the connection between the twin-screw pump and the pipeline, the problem of poor sealing is solved, achieving a stable connection and efficient sealing, preventing sulfur leakage, and protecting the environment.
Patent Information
- Application Number
- CN202423310258.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The lack of protective devices at the connection between the existing twin-screw pump and the pipeline leads to poor sealing and leakage, which affects the environment, especially causing serious pollution during the sulfur transportation process.
It adopts components such as connecting blocks, fixing plates, ring plates, sealing airbags and sealing rubber gaskets, and achieves a stable connection through threaded connection and airbag expansion to enhance sealing performance.
It effectively prevents leakage at the connection, improves sealing, prevents sulfur contamination, and ensures stable pump operation.
Smart Images
Figure CN223806266U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to double screw pump equipment technical field especially relates to a conveying liquid double screw pump with good sealing. BACKGROUND
[0002] The double screw pump is by the screw sleeve that mutually engages on the main driven shaft and the pump body or the bushing and forms a constant volume sealed chamber, medium is sent to the pump body middle with the rotation of screw shaft respectively, both converge together, finally send to the pump outlet, thereby realizes the purpose of pump delivery.
[0003] In the petroleum processing refining process, oil must be desulfurized, the sulfur pool in the desulfurization device of general refinery is set in the ground, and the depth is about 5 meters, which is to facilitate liquid sulfur to flow into the pool directly by gravity, and most enterprises now adopt the deep well type double screw pump to insert into the sulfur pool from the well mouth for conveying, but due to the pollution of sulfur, the double screw pump must maintain good sealing effect when being connected, so as to prevent the pollution of sulfur to the environment, and the connecting part of the existing double screw pump and pipeline does not have a protection device, so that the sealing of the connecting part is not strict, which leads to leakage, thereby reducing the sealing effect of the double screw pump, and also polluting the environment, so improvement is needed. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at solving the problem that the connecting part of the double screw pump and the pipeline in the prior art does not have a protection device, which easily leads to leakage due to the poor sealing of the connecting part, and provides a conveying liquid double screw pump with good sealing.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A conveying liquid double screw pump with good sealing, comprising a base, the base top is fixedly connected with a pump body, the pump body outer wall is provided with a feeding port and a discharging port, the feeding port and the discharging port are provided with a connecting seat, the connecting seat is connected with a connecting pipe through a connecting mechanism, the connecting pipe outer wall is fixedly sleeved with a fixed block, two connecting pipe ends are respectively inserted into the feeding port and the discharging port, and the connecting seat is provided with a leakage prevention mechanism.
[0007] Preferably, the connecting mechanism comprises a connecting block fixedly connected with the fixed block outer wall, the connecting block outer wall is threadedly connected with the connecting seat inner wall, the connecting block outer wall is fixedly connected with a fixed plate, and the fixed plate and the connecting seat are fixedly connected through bolts.
[0008] Preferably, the connecting block outer wall is provided with external threads, and the connecting seat inner wall is provided with a thread groove matched with the external threads.
[0009] Preferably, the anti-leakage mechanism comprises a ring-shaped plate fixedly connected with the inner side wall of the connecting seat, an annular sealing air bag fixedly connected with the inner side wall of the ring-shaped plate, an air inlet pipe fixedly connected with the outer side wall of the sealing air bag, and a connecting air nozzle fixedly connected with the outer side wall of the air inlet pipe and penetrating through the ring-shaped plate and the connecting seat.
[0010] Preferably, an air outlet pipe is fixedly connected with the outer side wall of the sealing air bag, and the air outlet pipe is externally extended and penetrates through the ring-shaped plate at the end away from the sealing air bag.
[0011] Preferably, a baffle is fixedly connected with the inner side wall of the connecting seat, a through hole is formed in the outer side wall of the baffle and matched with the fixed block, a sealing rubber pad is fixedly sleeved with the outer side wall of the fixed block, and the outer side wall of the sealing rubber pad is tightly contacted with the inner side wall of the through hole.
[0012] The utility model discloses a beneficial effect is:
[0013] Through the setting of the connecting seat, the connecting block and the fixed plate, the connecting pipe is stably installed on the pump body, so that loosening between the connecting pipe and the pump body is avoided, the connecting place of the connecting pipe and the pump body is protected through the setting of the ring-shaped plate and the sealing air bag, the sealing property of the connecting place is improved, and the sealing property of the connecting place is further improved through the setting of the baffle, the sealing rubber pad and the fixed block, so that the leakage problem is avoided, and use is facilitated. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 A structure diagram of the utility model discloses a conveying liquid double screw pump with good sealing property is provided.
[0015] Figure 2 For Figure 1 The structure of A in the middle is enlarged.
[0016] In the drawing: 1, base; 2, pump body; 3, connecting seat; 4, connecting pipe; 5, fixed block; 6, fixed plate; 7, connecting block; 8, ring-shaped plate; 9, sealing air bag; 10, air inlet pipe; 11, connecting air nozzle; 12, air outlet pipe; 13, baffle; 14, sealing rubber pad. DETAILED DESCRIPTION
[0017] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0018] Reference Figures 1-2The utility model provides a good sealing liquid conveying double screw rod pump, including base 1, the top fixedly connected with pump body 2 of base 1, and pump body 2 includes motor, gearbox (not shown inside is provided with variable speed gear set), transmission rod, synchronous gear and screw rod etc.
[0019] Wherein, connecting mechanism includes the connecting block 7 of fixed block 5 outer side wall fixed connection, connecting block 7 outer side wall is connected with the inner side wall screw of connecting seat 3, connecting block 7 outer side wall fixedly connected with fixed plate 6, and fixed plate 6 and connecting seat 3 between through bolt fixed connection, the fixed plate 6 of connecting block 7 is fixed, avoids the loose between connecting block 7 and connecting seat 3, leads to connecting pipe 4 connection stability, appears the problem of leakage.
[0020] Connecting block 7 outer side wall is equipped with external thread, and the inner side wall of connecting seat 3 is provided with a thread groove matched with the external thread, the setting of connecting block 7 makes the connection between connecting seat 3 and connecting pipe 4 stable, and has the effect of thread sealing.
[0021] The outer side wall of connecting pipe 4 is fixedly sleeved with fixed block 5, and the two ends of connecting pipe 4 are respectively inserted into the inlet and outlet, and the connecting seat 3 is provided with a leakage prevention mechanism.
[0022] Wherein, the leakage prevention mechanism comprises an annular plate 8 fixedly connected to the inner side wall of the connecting seat 3, an annular sealing air bag 9 fixedly connected to the inner side wall of the annular plate 8, an air inlet pipe 10 fixedly connected to the outer side wall of the sealing air bag 9, a connecting air nozzle 11 fixedly connected to the outer side wall of the air inlet pipe 10, and the outer side wall of the connecting air nozzle 11 is fixedly connected to the outer side wall of the connecting seat 3.
[0023] The outer side wall of the sealing air bag 9 is fixedly connected to an air outlet pipe 12, the outer side wall of the air outlet pipe 12 away from the sealing air bag 9 penetrates through the annular plate 8 and extends outward, and the outer side wall of the air outlet pipe 12 is provided with a valve.
[0024] The inner side wall of the connecting seat 3 is fixedly connected to a baffle 13, the outer side wall of the baffle 13 is provided with a through hole matched with the fixed block 5, the outer side wall of the fixed block 5 is fixedly sleeved with a sealing rubber pad 14, and the outer side wall of the sealing rubber pad 14 is in tight contact with the inner side wall of the through hole.
[0025] In the utility model, the connecting block 7 and the connecting seat 3 are fixedly connected, and then the fixed plate 6 and the connecting seat 3 are fixedly connected by bolts, so that the relative rotation of the connecting block 7 and the connecting seat 3 is avoided, and the connecting pipe 4 is stably installed.
[0026] At the same time, the fixed block 5 drives the sealing rubber pad 14 to be inserted into the through hole, so that the baffle 13 and the sealing rubber pad 14 cooperate to achieve the sealing protection effect, and the sealing air bag 9 is inflated by connecting the inflating device and the connecting air nozzle 11, so that the sealing air bag 9 is inflated to tightly contact the outer wall of the fixed block 5 and the inner wall of the annular plate 8, further protecting the connecting pipe 4 and the connecting part of the pump body 2, improving the sealing performance of the connecting part of the pump body 2 during use, and facilitating use.
[0027] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
Claims
1. A liquid conveying twin screw pump with good sealing property comprising a base (1), characterized in that, The base (1) top fixedly connected with the pump body (2), the pump body (2) outer wall is provided with feed inlet and discharge port, the feed inlet and discharge port are provided with connecting seat (3), the connecting seat (3) is connected with connecting pipe (4) through connecting mechanism, the connecting pipe (4) outer wall fixedly sleeved with fixed block (5), two connecting pipe (4) end part is inserted in feed inlet and discharge port respectively, the connecting seat (3) is equipped with anti-leakage mechanism.
2. The liquid conveying twin screw pump with good sealing according to claim 1, characterized in that, The connecting mechanism includes the connecting block (7) fixedly connected with the outer side wall of the fixed block (5), the outer side wall of the connecting block (7) is screwed with the inner side wall of the connecting seat (3), the outer side wall of the connecting block (7) is fixedly connected with the fixed plate (6), and the fixed plate (6) and the connecting seat (3) are fixedly connected by bolts.
3. The liquid conveying twin screw pump with good sealing according to claim 2, characterized in that, The outer side wall of the connecting block (7) is provided with external threads, and the inner side wall of the connecting seat (3) is provided with a thread groove matched with the external threads.
4. The liquid conveying twin screw pump of claim 1, wherein The anti-leakage mechanism includes the annular plate (8) fixedly connected with the inner side wall of the connecting seat (3), the annular plate (8) is fixedly connected with the annular sealing air bag (9) arranged in the form of an annular plate, the outer side wall of the sealing air bag (9) is fixedly connected with the air inlet pipe (10), the outer side wall of the air inlet pipe (10) penetrates the annular plate (8) and the connecting seat (3) and is fixedly connected with the connecting air nozzle (11), and the outer side wall of the connecting air nozzle (11) is fixedly connected with the outer side wall of the connecting seat (3).
5. The liquid conveying twin screw pump with good sealing according to claim 4, characterized in that, The outer side wall of the sealing air bag (9) is fixedly connected with the exhaust pipe (12), the outer side wall of the exhaust pipe (12) penetrates the annular plate (8) and extends outward away from the sealing air bag (9), and the outer side wall of the exhaust pipe (12) is provided with a valve.
6. The liquid conveying twin screw pump of claim 1, wherein The inner side wall of the connecting seat (3) is fixedly connected with the baffle (13), the outer side wall of the baffle (13) is provided with a through hole matched with the fixed block (5), the outer side wall of the fixed block (5) is fixedly sleeved with the sealing rubber pad (14), and the outer side wall of the sealing rubber pad (14) is in abutting contact with the inner side wall of the through hole.