CN216242889U - Adjustable self-balancing multi-stage pump composite pipe - Google Patents
Adjustable self-balancing multi-stage pump composite pipe Download PDFInfo
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- CN216242889U CN216242889U CN202122806461.6U CN202122806461U CN216242889U CN 216242889 U CN216242889 U CN 216242889U CN 202122806461 U CN202122806461 U CN 202122806461U CN 216242889 U CN216242889 U CN 216242889U
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Abstract
The utility model discloses an adjustable self-balancing multi-stage pump composite pipe which comprises an adjusting pipe and two connecting pipes, wherein each connecting pipe comprises a straight pipe section and a bent pipe section, the bent pipe section is arranged at one end of the straight pipe section, two ends of the adjusting pipe are respectively in threaded connection with the other ends of the straight pipe sections of the two connecting pipes, and the screw directions of the threaded connection sections at the two ends of the adjusting pipe are opposite. The adjustable self-balancing multistage pump composite pipe has the advantages of simple structure, adjustable length, convenience in installation, strong adaptability and the like.
Description
Technical Field
The utility model relates to the technical field of self-balancing multistage pumps, in particular to an adjustable self-balancing multistage pump composite pipe.
Background
The self-balancing multistage centrifugal pump consists of a stator component (the stator component consists of parts such as a water inlet section, a middle section, a positive guide vane, a reverse guide vane, a water outlet section, a secondary water inlet section, a front bearing body, a rear bearing body, a transition pipe and the like) and a rotor component (the rotor component consists of a main shaft, a positive impeller, a reverse impeller, a shaft sleeve, a bearing retaining sleeve, a middle throttling shaft sleeve, a rear throttling shaft sleeve, a shaft coupling and the like). The prime motor drives the water pump to rotate, medium is sucked from an inlet of the main water inlet section, enters the transition pipe from an outlet of the main water inlet section after being pressurized by the positive impeller group, flows into the secondary water inlet section through the transition pipe, is pressurized again by the reverse impeller group, and then flows out from a water outlet section of the secondary water inlet section, so that the medium is conveyed continuously.
The self-balancing multistage pump transition pipe has two structures at present, one is a round transition pipe which consists of two transition bent pipe sections with 90-degree round sections, two round flanges and a section of round metal pipe; the circular transition pipe and the low-pressure water outlet of the water outlet section are sealed by a circular metal sealing gasket, so that under special working conditions of high temperature, high pressure and the like, good sealing performance can be ensured, leakage is not easy to occur, the standardization degree is high, the cost is low, and the hydraulic loss of the transition pipe is small; the other type is a square transition pipe which consists of two 90-degree square section transition bent pipe sections with flanges and a section of square metal pipe.
The existing self-balancing multistage pump transition pipe has the following defects:
1. the length is fixed and cannot be adjusted, once the length of the transition pipe deviates from the length required by installation, the two ends of the transition pipe are difficult to align with the connectors (the outlet of the main water inlet section and the inlet of the secondary water inlet section), so that the installation is difficult and the adaptability is poor;
2. the end of the transition pipe is connected with the self-balancing multistage pump through a plurality of bolts, and each pair of threaded holes for each bolt to pass through are difficult to realize complete alignment, so that the bolts are difficult to mount and are not tight in sealing.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of overcoming the defects of the prior art and provides an adjustable self-balancing multistage pump composite pipe which is simple in structure, adjustable in length, convenient to install and high in adaptability.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a self-balancing multistage pump composite pipe with adjustable, includes regulating pipe and two connecting pipes, the connecting pipe includes straight tube section and bend section, the one end of straight tube section is located to the bend section, the both ends of regulating pipe and the other end difference threaded connection of two connecting pipe straight tube sections, just the spiral opposite direction of regulating pipe both ends threaded connection section.
As a further improvement of the above technical solution:
the middle part of the inner wall of the adjusting pipe is provided with a resisting ring, and a sealing ring is arranged between the straight pipe section and the resisting ring in a cushioning mode.
The straight pipe section is provided with a sealing ring, and the straight pipe section is provided with a first annular boss and a first annular groove.
And a second annular boss and a second annular groove are respectively arranged on the opposite surfaces of the sealing ring and the retaining ring, and the second annular boss is clamped in the second annular groove.
The sealing ring is equipped with two at least, and each sealing ring splices in proper order.
The sealing ring is a rubber ring.
And one end of the bent pipe section, which is far away from the straight pipe section, is provided with a movable joint.
The movable joint comprises a movable pipe and a movable sleeve, wherein one end of the movable pipe is provided with a convex ring protruding to the periphery, the movable sleeve is arranged on the periphery of the movable pipe and is in threaded connection with the bent pipe section, the convex ring is clamped between the movable sleeve and the bent pipe section, and the other end of the movable pipe is provided with a flange plate.
And a sealing ring is clamped between the convex ring and the bent pipe section.
The sealing ring is a rubber ring.
Compared with the prior art, the utility model has the advantages that:
1. when the adjustable self-balancing multi-stage pump composite pipe is used, the outer port of the bent pipe section at one end of the self-balancing multi-stage pump composite pipe is aligned with the outlet of the main water inlet section in a rough step, simultaneously, the outer port of the elbow section 22 at the other end of the composite pipe of the self-balancing multistage pump is roughly aligned with the inlet of the secondary water inlet section, then the adjusting pipe is slightly rotated, because the spiral direction of the threaded connection section of one end of the adjusting pipe and one straight pipe section is opposite to the spiral direction of the threaded connection section of the other end of the adjusting pipe and the other straight pipe section, therefore, after the adjusting pipe is rotated, the interval between the two straight pipe sections is reduced or lengthened, thereby achieving the purpose of adjusting the total length of the composite pipe of the self-balancing multistage pump, the bent pipe sections at the two ends of the composite pipe of the self-balancing multistage pump are respectively and completely aligned with the outlet of the main water inlet section and the inlet of the secondary water inlet section, so that the self-balancing multistage pump is convenient to install and high in adaptability. The adjustable self-balancing multistage pump composite pipe is simple in structure, adjustable in length, convenient to install and high in adaptability.
2. According to the adjustable self-balancing multi-stage pump composite pipe, the opposite surfaces of the straight pipe section and the sealing ring are respectively provided with the first annular boss and the first annular groove, and the first annular boss is clamped in the first annular groove, so that the contact area of the straight pipe section and the sealing ring is increased, and the sealing performance is further improved.
3. According to the adjustable self-balancing multi-stage pump composite pipe, the opposite surfaces of the straight pipe section and the sealing ring are respectively provided with the first annular boss and the first annular groove, and the first annular boss is clamped in the first annular groove, so that the contact area of the straight pipe section and the sealing ring 3 is increased, and the sealing performance is further improved.
4. According to the adjustable self-balancing multi-stage pump composite pipe, the flange plate is arranged on the movable pipe and can rotate synchronously with the movable pipe for adjustment, so that the flange plate and a threaded hole at the connecting port can be aligned conveniently. Namely, the flange plate can be installed firstly, and then the movable sleeve is connected with the bent pipe section. The installation is more convenient.
Drawings
Fig. 1 is a schematic structural diagram of an adjustable self-balancing multi-stage pump composite pipe of the present invention.
Fig. 2 is an enlarged view at a in fig. 1.
Fig. 3 is an enlarged view at B in fig. 1.
Fig. 4 is a schematic structural diagram of a connecting pipe of the adjustable self-balancing multi-stage pump composite pipe of the utility model.
Fig. 5 is an enlarged view at C in fig. 4.
Fig. 6 is a schematic structural diagram of a seal ring of the adjustable self-balancing multi-stage pump composite pipe of the present invention.
Fig. 7 is a schematic structural diagram of an adjusting pipe of the adjustable self-balancing multi-stage pump composite pipe.
Fig. 8 is another schematic structural diagram of the adjustable self-balancing multi-stage pump composite tube of the present invention.
Fig. 9 is an enlarged view at D in fig. 8.
The reference numerals in the figures denote:
1. an adjusting tube; 11. a stop ring; 2. a connecting pipe; 21. a straight pipe section; 22. bending the pipe section; 3. a seal ring; 4. a first annular boss; 5. a first annular groove; 6. a second annular boss; 7. a second annular groove; 8. a movable joint; 81. a movable tube; 811. a convex ring; 812. a flange plate; 82. a movable sleeve; 9. and (4) a sealing ring.
Detailed Description
The utility model will be described in further detail below with reference to the drawings and specific examples.
Fig. 1 to 7 show an embodiment of an adjustable self-balancing multi-stage pump composite pipe according to the present invention, which includes an adjusting pipe 1 and two connecting pipes 2, wherein each connecting pipe 2 includes a straight pipe section 21 and a bent pipe section 22, the bent pipe section 22 is disposed at one end of the straight pipe section 21, two ends of the adjusting pipe 1 are respectively in threaded connection with the other ends of the straight pipe sections 21 of the two connecting pipes 2, and the threaded connection sections at two ends of the adjusting pipe 1 have opposite spiral directions.
When the self-balancing multi-stage pump composite pipe is used, firstly, the outer port of the bent pipe section 22 at one end of the self-balancing multi-stage pump composite pipe is roughly aligned with the outlet of the main water inlet section, meanwhile, the outer port of the bent pipe section 22 at the other end of the self-balancing multi-stage pump composite pipe is roughly aligned with the inlet of the secondary water inlet section, then, the adjusting pipe 1 is slightly rotated, and as the spiral direction of the threaded connection section of one end of the adjusting pipe 1 and the straight pipe section 21 is opposite to the spiral direction of the threaded connection section of the other end of the adjusting pipe 1 and the other straight pipe section 21, after the adjusting pipe 1 is rotated, the interval between the two straight pipe sections 21 is not lengthened or shortened, so that the purpose of adjusting the total length of the self-balancing multi-stage pump composite pipe is achieved, the bent pipe sections 22 at the two ends of the self-balancing multi-stage pump composite pipe are completely aligned with the outlet of the main water inlet section and the inlet section of the secondary water inlet section respectively, the self-balancing multi-stage pump composite pipe is convenient to install and high in adaptability. The adjustable self-balancing multistage pump composite pipe is simple in structure, adjustable in length, convenient to install and high in adaptability.
In this embodiment, as shown in fig. 1 and fig. 2, a stop ring 11 is disposed in the middle of the inner wall of the adjusting pipe 1, and a seal ring 3 is disposed between the straight pipe section 21 and the stop ring 11. The sealing performance is improved. Meanwhile, the sealing rings 3 with different lengths can be selected to adapt to different installation lengths of the composite pipe of the self-balancing multistage pump.
In the present embodiment, as shown in fig. 2 and 6, the straight tube section 21 and the sealing ring 3 are respectively provided with a first annular boss 4 and a first annular groove 5 on opposite surfaces thereof, and the first annular boss 4 is clamped in the first annular groove 5. Thus, the contact area between the straight tube section 21 and the seal ring 3 is increased, and the sealing performance is further improved. Specifically, the first annular boss 4 is disposed on an end surface of the straight pipe section 21, and the first annular groove 5 is disposed on an end surface of the seal ring 3.
In this embodiment, the opposite surfaces of the sealing ring 3 and the retaining ring 11 are respectively provided with a second annular boss 6 and a second annular groove 7, and the second annular boss 6 is clamped in the second annular groove 7. Thus, the contact area between the seal ring 3 and the retainer ring 11 is increased, and the sealing performance is further improved. Specifically, the second annular boss 6 is provided on the other end face of the seal ring 3, and the second annular groove 7 is provided on the end face of the stopper ring 11.
Of course, when the adjustment length of the composite pipe of the self-balancing multistage pump is relatively large, for example, the adjustment length is greater than the length of the sealing ring 3, the sealing ring 3 may be additionally arranged between the straight pipe section 21 and the retaining ring 11, as shown in fig. 8 and 9, at least two sealing rings 3 are arranged between the straight pipe section 21 and the retaining ring 11, and the sealing rings 3 are sequentially spliced. The sealing ring 3 is made of a flexible material, such as a rubber material, i.e., the sealing ring 3 is a rubber ring.
In this embodiment, the end of the elbow section 22 remote from the straight section 21 is provided with a movable joint 8. The elbow section 22 is connected with the connectors (the outlet of the main water inlet section and the inlet of the secondary water inlet section) through the movable joint 8, so that the installation is more convenient.
In this embodiment, as shown in fig. 3, the movable joint 8 includes a movable pipe 81 and a movable sleeve 82, one end of the movable pipe 81 is provided with a convex ring 811 protruding to the outer periphery, the movable sleeve 82 is sleeved on the outer periphery of the movable pipe 81 and is in threaded connection with the bent pipe section 22, the convex ring 811 is clamped between the movable sleeve 82 and the bent pipe section 22, and the other end of the movable pipe 81 is provided with a flange 812. Because the flange 812 is arranged on the movable pipe 81, the flange can rotate synchronously with the movable pipe 81, and the alignment operation of the flange 812 and the threaded hole at the connecting port is facilitated. That is, the collar 812 may be installed prior to the sleeve 82 being connected to the elbow section 22. The installation is more convenient.
In this embodiment, a sealing ring 9 is interposed between the convex ring 811 and the bent pipe section 22. The sealing performance is improved. The sealing ring 9 is made of a flexible material, such as a rubber material, i.e. the sealing ring 9 is a rubber ring.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the utility model, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (10)
1. The utility model provides a compound pipe of self-balancing multistage pump which with adjustable which characterized in that: including adjusting pipe (1) and two connecting pipes (2), connecting pipe (2) are including straight tube section (21) and bend section (22), the one end of straight tube section (21) is located in bend section (22), the both ends of adjusting pipe (1) and the other end difference threaded connection of two connecting pipes (2) straight tube section (21), just the spiral opposite direction of adjusting pipe (1) both ends threaded connection section.
2. The adjustable self-balancing multistage pump composite tube of claim 1, wherein: the middle part of the inner wall of the adjusting pipe (1) is provided with a retaining ring (11), and a sealing ring (3) is arranged between the straight pipe section (21) and the retaining ring (11).
3. The adjustable self-balancing multistage pump composite tube of claim 2, wherein: the straight pipe section (21) and the sealing ring (3) are provided with a first annular boss (4) and a first annular groove (5) on opposite surfaces respectively, and the first annular boss (4) is clamped in the first annular groove (5).
4. The adjustable self-balancing multistage pump composite tube of claim 3, wherein: and a second annular boss (6) and a second annular groove (7) are respectively arranged on the opposite surfaces of the sealing ring (3) and the retaining ring (11), and the second annular boss (6) is clamped in the second annular groove (7).
5. The adjustable self-balancing multistage pump composite tube of claim 4, wherein: the number of the sealing rings (3) is at least two, and the sealing rings (3) are sequentially spliced.
6. The adjustable self-balancing multistage pump composite tube of claim 2, wherein: the sealing ring (3) is a rubber ring.
7. The adjustable self-balancing multistage pump composite tube of any one of claims 1 to 6, wherein: and one end of the elbow section (22) far away from the straight pipe section (21) is provided with a movable joint (8).
8. The adjustable self-balancing multistage pump composite tube of claim 7, wherein: activity connects (8) including activity pipe (81) and movable sleeve (82), the one end of activity pipe (81) is equipped with to the convex bulge loop (811) of periphery, the periphery of activity pipe (81) and with bend section (22) threaded connection are located to activity sleeve (82) cover, bulge loop (811) press from both sides tightly between activity sleeve (82) and bend section (22), the other end of activity pipe (81) is equipped with ring flange (812).
9. The adjustable self-balancing multistage pump composite tube of claim 8, wherein: and a sealing ring (9) is clamped between the convex ring (811) and the bent pipe section (22).
10. The adjustable self-balancing multistage pump composite tube of claim 9, wherein: the sealing ring (9) is a rubber ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122806461.6U CN216242889U (en) | 2021-11-16 | 2021-11-16 | Adjustable self-balancing multi-stage pump composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122806461.6U CN216242889U (en) | 2021-11-16 | 2021-11-16 | Adjustable self-balancing multi-stage pump composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216242889U true CN216242889U (en) | 2022-04-08 |
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ID=80942285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122806461.6U Active CN216242889U (en) | 2021-11-16 | 2021-11-16 | Adjustable self-balancing multi-stage pump composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216242889U (en) |
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2021
- 2021-11-16 CN CN202122806461.6U patent/CN216242889U/en active Active
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