CN213655150U

CN213655150U - A anticorrosion suction pump for spent acid is handled

Info

Publication number: CN213655150U
Application number: CN202021629601.6U
Authority: CN
Inventors: 谢欣洋
Original assignee: Qingdao Lixin Environmental Protection Co ltd
Current assignee: Qingdao Lixin Environmental Protection Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-07-09
Anticipated expiration: 2030-08-07

Abstract

The utility model discloses an anti-corrosion extraction pump for waste acid treatment, which comprises a pump body, wherein the pump body consists of a pump shaft, a pump cavity and a suspension, an impeller is arranged in the pump cavity and is connected with the pump shaft through an impeller nut, the pump shaft penetrates through the whole pump body, a pump cover is fixed at the right side of the pump cavity, a sealing cover is arranged at the right side of the pump cover on the impeller nut, a sealing device is arranged in the sealing cover, a separation ring is arranged in front of the sealing device, so that trace lubricating oil can not overflow when the mechanical seal is performed, the sealing suspension of the whole mechanical sealing device is supported on the pump shaft, a bearing is fixed on the suspension by a gland, the bearing is fixed and supported on the pump shaft through the gland at the tail end of the right side of the suspension, an oil seal is arranged at the outer side of the suspension, a support, can resist strong acid and strong alkali, and the surface layer of the fluoroplastic is coated with an aluminum oxide wear-resistant layer.

Description

A anticorrosion suction pump for spent acid is handled

Technical Field

The utility model relates to a technical field of pump specifically is an anticorrosion extraction pump for spent acid treatment.

Background

The extraction pump is the machinery of fluid delivery, and it gives liquid with the mechanical energy of prime mover or other outside energy transfer, makes the liquid energy increase, along with the continuous development of science and technology, all adopts the fluorine lining pump when present chemical industry field carries strong corrosive liquid, and the part that overflows of pump adopts fluoroplastics mould pressing to form promptly, has guaranteed the corrosion resistance of pump. If all need use acid in a large number in industrial production processes such as titanium white industry, steel industry, phosphorus chemical industry, organic chemical industry, also can produce a large amount of spent acids simultaneously, the pump that these spent acids adopted when concentrated has compound corrosion-resistant mixed flow pump, axial-flow pump etc. of steel-plastic, because the acid composition differs in the pickling waste liquid, and along with the difference of steel type, operating condition's change, the concentration of acid in the waste liquid, the fluctuation of temperature is great, consequently conventional metal all can not satisfy the anticorrosive requirement to the pickling waste liquid, but when being applied to the negative pressure environment, often can lead to anticorrosive coating and metal level to peel off, and the leakproofness is not good, influence the steady operation of equipment, for this the utility model provides an anticorrosive extraction pump for spent acid treatment is used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anticorrosion suction pump for spent acid treatment to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an anti-corrosion extraction pump for waste acid treatment comprises a pump body, wherein the pump body consists of a pump shaft, a pump cavity and a suspension, an impeller is arranged in the pump cavity and is connected with a pump shaft through an impeller nut, the pump shaft penetrates through the whole pump body, the central line of the pump shaft is superposed with the central line of the pump cavity, the right side of the pump cavity is fixed with a pump cover, a sealing cover is arranged on the impeller nut on the right side of the pump cover, a sealing device is arranged in the sealing cover, the suspension is supported on the pump shaft, the right tail end of the suspension fixes and supports the bearing on the pump shaft through a gland, the outer side of the suspension is provided with an oil seal, a support frame is arranged below the pump body and is supported on the ground, the inner surfaces of the pump cavity, the pump cover and the bearing box are covered with a layer of fluoroplastic, and the surface layer of the fluoroplastic is coated with an aluminum oxide wear-resistant layer.

Preferably, the inlet and outlet pipe bends of the pump body are sleeved with sealing rings, the pump covers are distributed up and down by taking impeller nuts as a symmetry axis, the suspensions are distributed up and down by taking the pump shaft as the symmetry axis, the two suspensions form an inner cavity of the bearing box, and the oil seals and the bearings are respectively distributed up and down by taking the pump shaft as the symmetry axis. Preferably, sealing device includes spring holder, quiet ring and rotating ring, the rotating ring is L type and right sealing ring constitution square body, be provided with the rotating ring packing ring in the space between rotating ring and the sealing ring, rotating ring and sealing ring top are connected with the driving bolt, the spring sets up between spring holder and rotating ring, and is provided with the spring catch and passes the spring and fix between spring holder and rotating ring, quiet ring is placed on quiet ring seat, and hugs closely the sealing ring, pump shaft and sealing ring are hugged closely to quiet ring seat, the left side of spring holder is provided with the isolation ring, the pump shaft is hugged closely to the isolation ring, that one side shape and the pump cover lower extreme phase-match that the spring holder was kept away from to the isolation ring.

Preferably, the two sealing devices are arranged on the right side of the pump cover and tightly attached to the upper surface and the lower surface of the impeller nut, the sealing devices are arranged in the sealing cover, and the sealing cover and a part of the inner wall of the pump cavity form a sealing structure.

Preferably, the gland has three groups, two groups of bearings are fixed on the suspension through two groups of glands, and the other group of glands is a mechanical gland fixed between the pump cover and the sealing device and supporting the pump cavity.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the sealing device and the sealing cover are arranged at the pump cover and the joint of the impeller nut and the pump shaft, so that the pollution caused by leakage is prevented, and the sealing performance of the device is also improved;

2. the isolation ring is arranged in front of the sealing device, and the sealing cover is arranged outside the sealing device, so that trace lubricating oil cannot overflow after mechanical sealing, and the sealing performance of the whole mechanical sealing device is ensured.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a diagram of the sealing device of the present invention.

In the figure: the pump body 1, the impeller 2, the sealing ring 3, the bearing 4, the pump shaft 5, the gland 6, the oil seal 7, the support frame 8, the bearing box 9, the sealing cover 10, the sealing device 11, the isolation ring 111, the spring seat 112, the spring 113, the driving bolt 114, the moving ring gasket 115, the stationary ring seat 116, the stationary ring 117, the sealing ring 118, the moving ring 119, the spring pin 1110, the pump cover 12, the impeller nut 13, the pump cavity 14 and the suspension 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 2, the present invention provides a technical solution: an anti-corrosion extraction pump for waste acid treatment comprises a pump body 1, wherein the pump body 1 consists of a pump shaft 5, a pump cavity 14 and a suspension 15, impellers 2 are arranged in the pump cavity 14, the impellers 2 are connected with the pump shaft 5 through impeller nuts 13, the pump shaft 5 penetrates through the whole pump body 1, the central line of the pump shaft 5 is superposed with the central line of the pump cavity 14, pump covers 12 are fixed on the right sides of the pump cavity 14, the two pump covers 12 are vertically distributed by taking the impeller nuts 13 as a symmetrical shaft, a sealing cover 10 is arranged on the impeller nuts 13 on the right sides of the pump covers 12, sealing devices 11 are arranged in the sealing cover 10, the two sealing devices 11 are arranged on the right sides of the pump covers and tightly attached to the upper surface and the lower surface of the impeller nuts 13, the sealing covers 10 and a part of the inner wall of the pump cavity 14 to form a sealing structure, corrosion of waste acid to, A stationary ring 117 and a movable ring 119, the movable ring 119 is L-shaped and forms a square body with a right sealing ring 118, a movable ring gasket 115 is arranged in a gap between the movable ring 119 and the sealing ring 118, the upper parts of the movable ring 119 and the sealing ring 118 are connected by a driving bolt 114, a spring 113 is arranged between a spring seat 112 and the movable ring 119, and a spring pin 1110 is provided to be fixed between the spring seat 112 and the moving ring 119 through the spring 113, the stationary ring 117 is seated on the stationary ring seat 116, and clings to the sealing ring 118, the static ring seat 116 clings to the pump shaft 5 and the sealing ring 118, the spring 113 clings to the dynamic ring 119 clings to the static ring 117, meanwhile, the sealing ring 118 is arranged to enable the static ring 117 to be well sealed, the left side of the spring seat 112 is provided with the isolation ring 111, the isolation ring 111 is tightly attached to the pump shaft 5, and the shape of one side, away from the spring seat 112, of the isolation ring 111 is matched with the lower end of the pump cover 12, so that the whole sealing device is tightly attached to the pump shaft 5 and tightly attached to the lower end of the pump cover 12.

The suspension 15 is supported on the pump shaft 5, the bearing 4 is fixed on the suspension 15 by the gland 6, the bearing 4 is used for supporting the pump shaft 5, the gland 6 has three groups, two groups of bearings 4 are fixed on the suspension 15 by two groups of glands 6, the other group of glands 6 is a mechanical gland fixed between the pump cover 12 and the sealing device 11 and supporting the pump cavity 14, the bearing 4 is fixed and supported on the pump shaft 5 by the gland 6 at the right tail end of the suspension 15, the two suspensions 15 are vertically distributed by taking the pump shaft 5 as a symmetric shaft, the two suspensions 15 form an inner cavity of the bearing box 9, the oil seals 7 and the bearings 4 are respectively vertically distributed by taking the pump shaft 5 as a symmetric shaft, the outer side of the suspension 15 is provided with the oil seal 7, the lower part of the pump body 1 is provided with a support frame 8 for supporting on the ground, the inner surfaces of the pump cavity 14, the pump cover 12 and the bearing box 9 are all covered, the pump body 1 adopts a metal shell lined with fluoroplastic, the impeller 2 is a plastic impeller lined with meltable polytetrafluoroethylene,

the working principle is as follows: when the pump is used, the bearing 4 is fixed on the suspension 15 through the gland 6, the pump shaft 5 is horizontally supported, the impeller 2 fixed on the impeller nut 13 starts to rotate through a motor connected outside the pump shaft to generate pressure difference to extract waste acid, the waste acid enters the pump cavity 14, because the pump cavity 14 is internally lined with fluoroplastic, the fluoroplastic is further provided with a wear-resistant layer outside, not only is the corrosion of the waste acid to a pump body prevented, but also the residue in the waste acid is prevented from scraping the fluoroplastic to prevent the corrosion of the fluoroplastic, the sealing device 11 and the sealing cover 10 on the outer side of a part in the pump cavity 14 block the corrosion of the waste acid, the spring 113 in the sealing device 11 is arranged between the spring seat 112 and the movable ring 119, the spring pin 1110 is arranged to penetrate through the spring 113 to be fixed between the spring seat 112 and the movable ring 119, the movable ring 119 is simultaneously pushed to the right stationary ring 117, and the outer side of the movable ring, the leakproofness of stationary ring 117 has been guaranteed, and the left side of spring holder 112 is provided with spacing ring 111, and pump shaft 5 is hugged closely to spacing ring 111, and the shape of the one side that spring holder 112 was kept away from to spacing ring 111 makes whole sealing device not only hug closely pump shaft 5 with the lower extreme phase-match of pump cover 12, closely laminates with pump cover 12 lower extreme simultaneously.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An anti-corrosion extraction pump for spent acid treatment, comprising a pump body (1), characterized in that: the pump body (1) consists of a pump shaft (5), a pump cavity (14) and a suspension (15), wherein an impeller (2) is arranged in the pump cavity (14), the impeller (2) is connected with the pump shaft (5) through an impeller nut (13), the pump shaft (5) penetrates through the whole pump body (1), the central line of the pump shaft (5) is superposed with the central line of the pump cavity (14), a pump cover (12) is fixed on the right side of the pump cavity (14), a sealing cover (10) is arranged on the impeller nut (13) on the right side of the pump cover (12), a sealing device (11) is arranged in the sealing cover (10), the suspension (15) is supported on the pump shaft (5), a bearing (4) is fixed and supported on the pump shaft (5) through a pressing cover (6) at the right tail end of the suspension (15), an oil seal (7) is arranged on the outer side of the suspension (15), a support frame (8) is arranged below the pump body (1, the inner surfaces of the pump cavity (14), the pump cover (12) and the bearing box (9) are covered with a layer of fluoroplastic, and the surface layer of the fluoroplastic is coated with an aluminum oxide wear-resistant layer.

2. An anti-corrosion extraction pump for spent acid treatment according to claim 1, characterized in that: the pump is characterized in that sealing rings (3) are sleeved at the turning positions of inlet and outlet pipelines of the pump body (1), two pump covers (12) are distributed up and down by taking impeller nuts (13) as symmetrical shafts, two suspensions (15) are distributed up and down by taking a pump shaft (5) as a symmetrical shaft, the two suspensions (15) form an inner cavity of a bearing box (9), and two oil seals (7) and two bearings (4) are respectively distributed up and down by taking the pump shaft (5) as a symmetrical shaft.

3. An anti-corrosion extraction pump for spent acid treatment according to claim 1, characterized in that: the sealing device (11) comprises a spring seat (112), a static ring (117) and a dynamic ring (119), the dynamic ring (119) is L-shaped and forms a square body with a right sealing ring (118), a dynamic ring gasket (115) is arranged in a gap between the dynamic ring (119) and the sealing ring (118), the dynamic ring (119) and the sealing ring (118) are connected through a driving bolt (114), a spring (113) is arranged between the spring seat (112) and the dynamic ring (119), a spring pin (1110) is arranged to penetrate through the spring (113) to be fixed between the spring seat (112) and the dynamic ring (119), the static ring (117) is placed on the static ring seat (116) and tightly attached to the sealing ring (118), the static ring seat (116) tightly attached to the pump shaft (5) and the sealing ring (118), a separation ring (111) is arranged on the left side of the spring seat (112), and the separation ring (111) tightly attached to the pump shaft (5), the shape of the side of the isolation ring (111) far away from the spring seat (112) is matched with the lower end of the pump cover (12).

4. An anti-corrosion extraction pump for spent acid treatment according to claim 1, characterized in that: the two sealing devices (11) are arranged on the right side of the pump cover and tightly attached to the upper surface and the lower surface of the impeller nut (13), the sealing devices (11) are arranged in the sealing cover (10), and the sealing cover (10) and a part of the inner wall of the pump cavity (14) form a sealing structure.

5. An anti-corrosion extraction pump for spent acid treatment according to claim 1, characterized in that: the three groups of the pressing covers (6) are arranged, two groups of the bearings (4) are fixed on the suspension (15) through two groups of the pressing covers (6), and the other group of the pressing covers (6) are mechanical pressing covers and are fixed between the pump cover (12) and the sealing device (11) and support the pump cavity (14).