CN210566862U

CN210566862U - Connecting pipeline for chemical pump

Info

Publication number: CN210566862U
Application number: CN201921587249.1U
Authority: CN
Inventors: 雷肇祥
Original assignee: Jingzhou Junshu Paper Co Ltd
Current assignee: Jingzhou Junshu Paper Co Ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-05-19
Anticipated expiration: 2029-09-24

Abstract

The utility model relates to the technical field of chemical pumps, and discloses a connecting pipeline for a chemical pump, which comprises a transparent conveying pipe and a quick joint, wherein the conveying pipe comprises a paired liquid inlet pipe and a connecting pipe which are arranged side by side and are provided with threads, and one of the liquid inlet pipes is connected with the quick joint in a threaded manner; the two ends of the connecting pipe are provided with rotating pipes, the rotating pipes are inserted in the liquid inlet pipes and provided with rotating sealing assemblies between the liquid inlet pipes, and the connecting pipe is rotatably connected between the liquid inlet pipes through the rotating sealing assemblies. The utility model has the advantages of it is following and effect: through setting up transparent conveyer pipe, be convenient for observe the state of the exit and the middle section liquid of conveyer pipe to and the running state of the chemical industry pump that the feedback is connected in time, and be aided with rotatable connecting pipe, make the dismouting at conveyer pipe both ends mutually noninterference.

Description

Connecting pipeline for chemical pump

Technical Field

The utility model belongs to the technical field of the technique of chemical pump and specifically relates to a connecting tube for chemical pump is related to.

Background

The chemical pump is a water pump used in the chemical industry, and is specially used for conveying some corrosive and polluting chemical media. The chemical pump is widely applied to the industries of chemical industry, metallurgy, pharmacy and the like and has important application.

But adopt rigid connection between the export of traditional chemical pump and the pipeline, because on-the-spot installation error and heat altered shape scheduling problem arouse the vibration easily, thereby make the junction produce fatigue damage and lead to liquid to leak to influence chemical pump's normal use, reduce production efficiency.

Because the vacuum pump needs to detect the running state after maintenance or overhaul, and the vacuum pump vibrates greatly when running, and the vacuum table cannot be installed on the pump body, so the running state of the vacuum pump can only be judged by the table on the equipment after overhaul, and the work is more complicated for the replacement of lubricating oil, and needs to be completed by the cooperative operation of two persons, thereby not only increasing the working strength of maintenance personnel, reducing the equipment utilization rate, but also being not beneficial to the operation.

In the maintenance or operation process, the operation state of the chemical pump needs to be detected. In the prior art, a connecting pipeline composed of a pipe end extrusion type high-pressure pipe joint and a metal pipeline is generally adopted, and then the high-pressure pipe joint is connected into an outlet of a chemical pump in a threaded mode. The outlet of the chemical pump is shielded by the metal pipeline, so that the outflow condition of the liquid can be observed only at the outlet end of the pipeline, and the liquid conveying condition in the connecting pipeline is not convenient to directly observe. And due to the time difference, the problem that the operation of the chemical pump is not convenient to directly feed back needs to be improved.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to the above-mentioned not enough that exists among the prior art and provide a connecting tube for chemical industry pump convenient to in time observe running state of liquid in the connecting tube.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a connecting pipeline for a chemical pump comprises a transparent conveying pipe and a quick connector, wherein the conveying pipe comprises paired liquid inlet pipes and connecting pipes which are arranged side by side and are provided with threads, and one liquid inlet pipe is in threaded connection with the quick connector; the two ends of the connecting pipe are provided with rotating pipes, the rotating pipes are inserted in the liquid inlet pipes and provided with rotating sealing assemblies between the liquid inlet pipes, and the connecting pipe is rotatably connected between the liquid inlet pipes through the rotating sealing assemblies.

By adopting the technical scheme, in the actual use process, the liquid inlet pipe far away from the quick connector is arranged in the outlet of the chemical pump through the thread of the liquid inlet pipe, and meanwhile, the quick plug can be quickly arranged at the inlet of the conveyed object; when the chemical pump runs, the running state of the outlet of the chemical pump can be directly observed through the transparent conveying pipe, and the flowing state of the conveyed liquid can also be observed through the conveying pipe, so that the liquid conveying state of the conveying pipe can be fed back in time conveniently to judge the running state of the chemical pump; in addition, by arranging the rotatable connecting pipe, the rotation states of the liquid inlet pipes at the two ends are not interfered with each other, and the installation object of one of the liquid inlet pipes can be conveniently and independently changed.

The utility model discloses further set up to: the rotating pipe is provided with a first flange plate, the two ends of the connecting pipe are provided with second flange plates, and the first flange plate is fixedly connected with the second flange plates through screws.

Through adopting above-mentioned technical scheme for constitute detachable construction between connecting pipe and the feed liquor pipe, the dismouting of the local part of being convenient for is changed.

The utility model discloses further set up to: the rotary sealing assembly comprises a check ring and a static ring which are tightly sleeved outside the rotary pipe, and a check ring, an elastic part and a movable ring which are arranged between the check ring and the static ring; the baffle ring is sleeved outside the baffle ring and abutted against the end face, close to the movable ring, of the baffle ring, one end of the baffle ring is bent and extended along the radial direction and abutted against the inner wall of the liquid inlet pipe tightly, and the other end of the baffle ring is bent and extended along the axial direction and abutted against the inner wall of the movable ring tightly; one end of the elastic piece is abutted against the end face of the baffle ring, and the other end of the elastic piece is abutted against the end face of the movable ring, so that the end face of the movable ring is forced to be abutted against the end face of the static ring.

By adopting the technical scheme, the displacement of one end of the elastic part is limited by the baffle ring, then the elastic part can force the movable ring to move towards the stationary ring, and at the moment, the baffle ring, the elastic part and the movable ring form a middle limiting structure so as to limit the movement of the stationary ring and the check ring on two sides of the middle limiting structure and finally realize the rotation of the rotating pipe relative to the liquid inlet pipe; meanwhile, a triple sealing surface is formed on one side of the movable ring, the static ring, the elastic part and the baffle ring, and a double sealing surface is formed on the other side of the baffle ring, the elastic part and the retainer ring, so that liquid leakage in the liquid inlet pipe is avoided.

The utility model discloses further set up to: the elastic component comprises rubber supports, paired spring seats oppositely arranged along the axial direction, compression springs arranged between the spring seats and sleeved outside the spring seats, the rubber supports comprise head sealing parts outside the retaining rings, necks tightly sleeved outside the moving rings and connected with the ring connecting parts outside the moving rings, and one of the spring seats is tightly sleeved outside the head sealing parts and abutted against the axial end face of the head sealing part, and the other spring seat is tightly sleeved outside the ring connecting parts and abutted against the axial end face of the ring connecting parts.

Through adopting above-mentioned technical scheme, constitute dual elastic construction through compression spring and rubber support, can further force the rotating ring to contradict in the terminal surface of quiet ring.

The utility model discloses further set up to: the rotary sealing assembly further comprises a retaining sleeve which is sleeved outside the static ring and is abutted against the axial end face of the static ring.

By adopting the technical scheme, the axial displacement of the rotating pipe is further limited by the baffle sleeve, and good pre-sealing can be formed between the static ring and the baffle sleeve.

The utility model discloses further set up to: the spacer sleeve is made of rubber, a plurality of sealing rings are arranged on the outer wall of the spacer sleeve along the radial direction in a protruding mode, and the outer walls of the sealing rings abut against the inner wall of the liquid inlet pipe.

By adopting the technical scheme, the blocking sleeve and the inner wall of the liquid inlet pipe can form a good multiple sealing surface.

The utility model discloses further set up to: the compression spring is a variable pitch spring.

Through adopting above-mentioned technical scheme, the variable pitch spring is through changing its pitch for compression spring has the effect of variable elasticity, is favorable to preventing the emergence of compression spring resonance.

To sum up, the utility model discloses a beneficial technological effect does:

1. the transparent conveying pipe is arranged, so that the states of liquid at the inlet and the outlet of the conveying pipe and in the middle section can be observed conveniently, the running state of a connected chemical pump can be fed back in time, and the rotatable connecting pipe is used for assisting, so that the assembly and disassembly at the two ends of the conveying pipe are not interfered with each other;

2. the first flange plate and the second flange plate are arranged, so that the connecting pipe and the liquid inlet pipe can be conveniently disassembled, assembled and replaced;

3. through setting up the rotary seal subassembly, when realizing that the rotating-barrel rotates for the feed liquor pipe purpose, avoided the leakage of the interior liquid of transfer line.

Drawings

Fig. 1 is a schematic structural diagram of the connecting pipe of the present invention.

Fig. 2 is a schematic view of the connection relationship between the rotating pipe, the rotating seal assembly, the liquid inlet pipe and the connecting pipe of the present invention.

Fig. 3 is a schematic view of the connection between the rotary pipe and the rotary seal assembly according to the present invention.

In the figure, 1, a delivery pipe; 2. a quick coupling; 3. a connecting pipe; 4. a second flange plate; 5. a first flange plate; 6. rotating the tube; 7. a liquid inlet pipe; 8. rotating the seal assembly; 81. a retainer ring; 82. a stationary ring; 83. a baffle ring; 84. an elastic member; 841. a rubber support; 8411. a head seal portion; 8412. a loop connection part; 8413. a neck portion; 842. a spring seat; 843. a compression spring; 85. a moving ring; 86. a blocking sleeve; 861. and (4) a sealing ring.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the specific embodiments. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 and 2, for the utility model discloses a connecting tube for chemical pump, including transparent conveyer pipe 1 and quick-operation joint 2. Conveyer pipe 1 is including being located the connecting pipe 3 at center, in proper order the symmetry set up in second ring flange 4, first ring flange 5, rotating-barrel 6 and the feed liquor pipe 7 of the both sides of connecting pipe 3, and one of them feed liquor pipe 7 threaded connection is on quick-operation joint 2. The first flange 5 is fixed at the end of the rotating pipe 6, the second flange 4 is fixed at the end of the liquid inlet pipe 7, and the first flange 5 and the second flange 4 are fixedly connected through screws. One end of the rotating pipe 6, which is far away from the first flange plate 5, is inserted into the liquid inlet pipe 7 and is provided with a rotating sealing assembly 8 between the liquid inlet pipe 7, so that the connecting pipe 3 can rotate relative to the liquid inlet pipe 7, and the liquid inlet pipe 7 can be detached and installed independently.

Referring to fig. 2, the rotary seal assembly 8 includes a retainer 81 and a stationary ring 82 tightly fitted around the outside of the rotary pipe 6, a retainer 83 disposed between the retainer 81 and the stationary ring 82, an elastic member 84 and a movable ring 85, and a retainer 86. The retaining sleeve 86 is sleeved outside the stationary ring 82 and abuts against an axial end face of the stationary ring 82. Axial displacement of the rotating tube 6 is further restricted by the retaining sleeve 86 and a good pre-seal can be formed between the stationary ring 82 and the retaining sleeve 86. The retaining sleeve 86 is made of rubber, and a plurality of sealing rings 861 are arranged on the outer wall of the retaining sleeve 86 in a protruding mode in the radial direction. The cross section of the sealing ring 861 is semicircular, and the outer wall of the sealing ring is abutted against the inner wall of the liquid inlet pipe 7, so that the blocking sleeve 86 and the inner wall of the liquid inlet pipe 7 can form a good multi-sealing surface.

The retainer ring 83 is sleeved outside the retainer ring 81 and abuts against the end face of the retainer ring 81 close to the movable ring 85. And one end of the baffle ring 83 is bent and extended along the radial direction and tightly abutted against the inner wall of the liquid inlet pipe 7, and the other end is bent and extended along the axial direction and tightly abutted against the inner wall of the movable ring 85, so that the cross section of the baffle ring 83 is finally in two L shapes which are connected end to end.

Referring to fig. 2 and 3, in addition, the elastic member 84 serves to force the end surface of the movable ring 85 against the end surface of the stationary ring 82. The elastic member 84 includes a rubber support 841, a pair of L-shaped spring seats 842 arranged oppositely along the axial direction, and a compression spring 843 arranged between the spring seats 842 and sleeved outside the spring seats 842. The rubber holder 841 includes a head sealing portion 8411 tightly sleeved outside the retainer ring 83 and abutting against the end surface of the retainer ring 83, a ring joint portion 8412 tightly sleeved outside the movable ring 85 and abutting against the end surface of the movable ring 85, and a neck portion 8413 connecting the two. One spring seat 842 is tightly sleeved outside the head seal portion 8411 and abuts against the axial end face of the head seal portion 8411, and the other spring seat 842 is tightly sleeved outside the annular portion 8412 and abuts against the axial end face of the annular portion 8412. In addition, the compression spring 843 is a variable pitch spring, so that the compression spring 843 has an effect of variable elasticity, which is beneficial to preventing the compression spring 843 from resonance. The compression spring 843 and the rubber support 841 form a double elastic structure, so that the movable ring 85 can be further forced to abut against the end face of the stationary ring 82.

The stop ring 83 limits the displacement of one end of the elastic element 84, then the elastic element 84 can force the movable ring 85 to move towards the stationary ring 82, and at this time, the stop ring 83, the elastic element 84 and the movable ring 85 form a middle limiting structure to limit the movement of the stationary ring 82 and the retainer ring 81 on both sides of the middle limiting structure, and finally, the rotation of the rotating pipe 6 relative to the liquid inlet pipe 7 is realized; meanwhile, a triple sealing surface is formed on one side by the movable ring 85, the fixed ring 82, the elastic part 84 and the baffle ring 83, and a double sealing surface is formed on the other side by the baffle ring 83, the elastic part 84 and the retainer ring 81, so that liquid leakage in the liquid inlet pipe 7 is avoided.

The implementation principle of the embodiment is as follows: in the actual use process, the liquid inlet pipe 7 far away from the quick connector 2 is installed in the outlet of the chemical pump through threads, and meanwhile, the quick plug can be quickly installed at the inlet of a conveyed object; when the chemical pump operation, the operating condition that the chemical pump exported can directly observe through transparent conveyer pipe 1, and the mobile state of the liquid that is carried out also can be observed by conveyer pipe 1 and obtain, and the liquid transport state of conveyer pipe 1 is convenient for in time feed back to judge the operating condition of chemical pump.

Claims

1. The utility model provides a connecting tube for chemical pump which characterized in that: the device comprises a transparent conveying pipe (1) and a quick joint (2), wherein the conveying pipe (1) comprises paired liquid inlet pipes (7) which are arranged side by side and are provided with threads and a connecting pipe (3), and one liquid inlet pipe (7) is in threaded connection with the quick joint (2); the two ends of the connecting pipe (3) are provided with rotating pipes (6), the rotating pipes (6) are inserted into the liquid inlet pipe (7) in an inserting mode, rotating sealing assemblies (8) are arranged between the rotating pipes (6) and the liquid inlet pipe (7), and the connecting pipe (3) is rotatably connected between the liquid inlet pipe (7) through the rotating sealing assemblies (8).

2. The connecting pipe for the chemical pump according to claim 1, wherein: the connecting pipe is characterized in that a first flange plate (5) is arranged on the rotating pipe (6), second flange plates (4) are arranged at two ends of the connecting pipe (3), and the first flange plate (5) is fixedly connected with the second flange plates (4) through screws.

3. The connecting pipe for the chemical pump according to claim 1 or 2, wherein: the rotary sealing assembly (8) comprises a retainer ring (81) and a static ring (82) which are tightly sleeved outside the rotary pipe (6), a retainer ring (83) arranged between the retainer ring (81) and the static ring (82), an elastic piece (84) and a movable ring (85); the baffle ring (83) is sleeved outside the retainer ring (81) and abutted against the end face, close to the movable ring (85), of the retainer ring (81), one end of the baffle ring (83) bends and extends along the radial direction and is tightly abutted against the inner wall of the liquid inlet pipe (7), and the other end bends and extends along the axial direction and is tightly abutted against the inner wall of the movable ring (85); one end of the elastic piece (84) is abutted against the end face of the baffle ring (83), and the other end of the elastic piece is abutted against the end face of the movable ring (85) so as to force the end face of the movable ring (85) to be abutted against the end face of the static ring (82).

4. The connecting pipe for the chemical pump according to claim 3, wherein: elastic component (84) include rubber support (841), along axial relative arrangement's spring holder (842) in pairs, arrange in between spring holder (842) and the cover locate spring holder (842) outer compression spring (843), rubber support (841) are located including closely overlapping head seal portion (8411) outside fender ring (83), closely overlapping and locating move ring (85) outer ring portion (8412), connect neck (8413) between the two, one of them spring holder (842) closely overlap and connect outside head seal portion (8411) and contradict in the axial terminal surface of head seal portion (8411), another spring holder (842) closely overlap and connect outside ring seal portion (8412) and contradict in the axial terminal surface of ring seal portion (8412).

5. The connecting pipe for the chemical pump according to claim 4, wherein: the rotary sealing assembly (8) further comprises a retaining sleeve (86), and the retaining sleeve (86) is sleeved outside the static ring (82) and is abutted against the axial end face of the static ring (82).

6. The connecting pipe for the chemical pump according to claim 5, wherein: the baffle sleeve (86) is made of rubber, a plurality of sealing rings (861) are arranged on the outer wall of the baffle sleeve (86) in a protruding mode along the radial direction, and the outer wall of each sealing ring (861) abuts against the inner wall of the liquid inlet pipe (7).

7. The connecting pipe for the chemical pump according to claim 4, wherein: the compression spring (843) is a variable pitch spring.