CN216788718U - Petrochemical industry process pump based on API610 - Google Patents

Abstract

The utility model provides an API 610-based petrochemical process pump which comprises a pump body, wherein a pump cover is arranged at the rear end of the pump body, a bearing box is arranged on the pump cover, a pump shaft is arranged in the bearing box, a mechanical seal is arranged on the pump shaft, a positioning hole is formed in the bottom of the pump body, the pump cover is connected with the bearing box through a seam allowance, a brass retainer is arranged on a bearing, temperature measuring holes are formed in a deep groove ball bearing and an angular contact ball bearing in the bearing box, vibration measuring holes are formed in the axial direction, the top and the radial direction of the bearing box, a winding pipe is arranged on the bearing box, a high-point exhaust hole and a low-point exhaust hole are formed in a sealing cavity formed between the pump body and the pump cover, and a clamping type packaging seal is arranged between the pump shaft and an impeller. The utility model increases the pipe orifice load of the inlet and the outlet, reduces the vibration generated by the operation of the pump, effectively cools the bearing box body, monitors the vibration and the temperature of the bearing box body in real time and greatly prolongs the service life of the mechanical seal in extreme environments.

Description

Petrochemical industry process pump based on API610

Technical Field

The utility model belongs to the field of machinery, and particularly relates to a petrochemical process pump based on API 610.

Background

API610 is the American Petroleum institute standard, and the content that this standard relates to comes from good industry verification and operation practice basically, and the product that carries out this standard has the outstanding advantages such as operation stability, long-lived and installation maintenance convenience, and the present wide application is in the equipment of important operating mode, key occasion at home and abroad. And by executing the API610 standard, the economic benefit of an enterprise can be improved, potential safety hazards caused by field operation of a user are avoided, and more importantly, the management, culture, processing, manufacturing and test levels of the enterprise can be improved.

The existing petrochemical process pump is widely applied to industries such as coal chemical industry, petrochemical industry, papermaking and food, but the execution standard does not reach the API standard, and some special working conditions cannot meet the use requirements of users.

1) The load of a traditional petrochemical process pump pipe orifice is 2 times of the specified value of API 610; which tends to cause distortion of the pump casing and misalignment of the pump and drive shaft.

2) The bearing housing of current petrochemical industry process pump generally is the cast iron material, installs the tip additional and supports, and the cooling method is ordinary direct water-cooling moreover, thereby only cools off bearing inner race reduction bearing inner gap when the bearing housing easily wears and causes the clearance increase to influence bearing life-span and cooling, leads to the bearing trouble.

3) The sealed cavity of the existing petrochemical process pump has no low-point liquid drainage and high-point exhaust holes, so that the sealed cavity is not filled with liquid before starting up and is not drained when the pump is shut down, and the service life of sealing is influenced.

SUMMERY OF THE UTILITY MODEL

The present invention provides a petrochemical process pump based on API610 to solve the above problems.

The technical scheme of the utility model is realized as follows: the utility model provides a petrochemical industry process pump based on API610, includes the pump body, pump body rear end is equipped with the pump cover, be equipped with the bearing box on the pump cover, be equipped with the pump shaft in the bearing box, the one end salient of pump shaft is outside the bearing box, and the other end passes through impeller nut fixedly connected with impeller, be equipped with mechanical seal on the pump shaft, pump body bottom is equipped with the locating hole, the pump cover passes through the tang with the bearing box and is connected, is equipped with the brass holder on the bearing, deep groove ball bearing and angular contact ball bearing department are equipped with the temperature measurement hole in the bearing box, bearing box axial, top and radial all are equipped with the vibration measurement hole, be equipped with the winding piece pipe on the bearing box, be equipped with high point exhaust hole and low point exhaust hole (, be equipped with card formula collection dress between pump shaft and the impeller and seal.

Preferably, the depth of a seam allowance for connecting the pump body and the pump cover is 12mm, the wall thickness of the pump body is 20mm, the thickness of a pump support frame on the pump body is 50mm, the thickness of a pump shell of the pump body is 30mm, and the thickness of a pump cover flange on the pump cover is 35 mm.

The utility model has the beneficial effects that: according to the utility model, the wall thicknesses of the pump body, the support frame and the pump cover flange are increased, the depth of a seam allowance connected with the pump cover is increased, and the center of the bottom of the pump body is positioned, so that the pipe orifice load of an inlet and an outlet is increased, and the vibration generated by the operation of the pump is reduced. The bearing box is made of cast steel, the bearing is provided with a brass retainer which is machined, so that the rigidity of the bearing box body is increased, the end support of the bearing box body is eliminated, the cooling bearing part adopts a mode of cooling lubricating oil by a winding pipe, and temperature measuring and vibration measuring points are added, so that the bearing box body is cooled more effectively, and the vibration and the temperature of the bearing box body are monitored in real time. Mechanical seal adopts the card formula collection dress to seal, cancels and colludes the axle sleeve design, and the design of sealed intracavity has low point flowing back and high point exhaust hole to effectual increase mechanical seal is in extreme environment's life.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the pump body of the present invention;

FIG. 3 is a schematic view of a pump cover according to the present invention;

FIG. 4 is a schematic structural view of a bearing component of the present invention;

fig. 5 is a right side view of fig. 1 of the present invention.

Description of the parts: 1. the pump body, 2, a pump cover, 3, a bearing box, 4, a pump shaft, 5, an impeller nut, 6, an impeller, 7, mechanical seal, 8, a deep groove ball bearing, 9, an angular contact ball bearing, 10, a front bearing gland, 11, a front bearing isolator, 12, a round nut, 13, a rear bearing gland, 14, a rear bearing isolator, 15, a winding pipe, 16, a positioning hole, 17, a high-point exhaust hole, 18, a low-point exhaust hole, 19, a spigot, 20, a vibration measuring hole, 21, a temperature measuring hole, 22, a clamping type integrated seal, 23, a pump bracket, 24, a pump shell, 25, a pump cover flange, 26 and a brass retainer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-5, a petrochemical process pump based on API610 includes a pump body 1, a pump cover 2 connected to a rear end of the pump body 1, a bearing housing 3 connected to the pump cover 2, a pump shaft 4 rotatably supported in the bearing housing 3 by a bearing assembly, an impeller 6 fixedly connected to the other end of the pump shaft 4 by an impeller nut 5, the impeller 6 located in a pump cavity formed by the pump body 1 and the pump cover 2, and a mechanical seal 7 further disposed on the pump shaft 4, the mechanical seal 7 located at a connection between the pump cover 2 and the bearing housing 3, the bearing assembly including a deep groove ball bearing 8 and two angular contact ball bearings 9, the deep groove ball bearing 8 located at a side close to the mechanical seal 7, and a front bearing cover 10 and a front bearing isolator 11 fitted to the deep groove ball bearing 8 and disposed on the pump shaft 4, and be provided with O type circle between front bearing isolator 11 and the pump shaft 4, two angular contact ball bearing 9 cup joint the one end of keeping away from mechanical seal 7 at pump shaft 4 to wherein there are two angular contact ball bearing 9 back to back installation, these two angular contact ball bearing 9 are equipped with tightly through threaded connection's round nut 12 on pump shaft 4 simultaneously, be provided with on pump shaft 4 with rear bearing gland 13 and rear bearing isolator 14 that angular contact ball bearing 9 matches, just be provided with O type circle between rear front bearing isolator 14 and the pump shaft 4, bearing box 3 adopts the mode of the cooling lubricating oil of winding sheet pipe 15.

The pump body 1 is provided with a positioning hole 16 at the bottom, the pump cover 2 is connected with the bearing box 3 through a spigot 19, a brass retainer is arranged on the bearing, the bearing box is made of cast steel, and the bearing is provided with the machined brass retainer, so that the rigidity of the bearing box body is increased, and the end support of the bearing box is eliminated. Temperature measuring holes 21 are formed in the deep groove ball bearing 8 and the angular contact ball bearing 9 in the bearing box 3, vibration measuring holes 20 are formed in the bearing box 3 in the axial direction, the top and the radial direction, a high-point exhaust hole 17 and a low-point exhaust hole 18 are formed in a sealing cavity formed between the pump body 1 and the pump cover 2, a clamping type packaging seal 22 is arranged between the pump shaft 4 and the impeller 6, the mechanical seal is clamping type packaging seal, and shaft sleeve design is omitted; the sealing cavity is internally designed with low-point liquid drainage and high-point exhaust holes, so that the service life of the mechanical seal in an extreme environment is effectively prolonged. The cooling bearing part adopts the mode of cooling lubricating oil by winding a sheet pipe, namely, pipe cooling, and increases temperature and vibration measuring points, thereby more effectively cooling the bearing box body and monitoring the vibration and the temperature of the bearing box body in real time.

The depth of a seam allowance for connecting the pump body 1 and the pump cover 2 is 20mm, the wall thickness of the pump body 1 is 20mm, the thickness of a pump support frame 23 on the pump body 1 is 50mm, the thickness of a pump shell 24 of the pump body 1 is 30mm, and the thickness of a pump cover flange on the pump cover 2 is 35 mm. The pump body wall thickness increases, and the support frame increases thickness, and the tang degree of depth of being connected with the pump cover increases, and pump body bottom center increases the location, and pump cover flange increases thickness, and the pump cover increases the tang with being connected of bearing box and is connected to increase the mouth of pipe load of importing and exporting, reduce the vibration that the pump operation produced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (2)

1. The petrochemical process pump based on the API610 comprises a pump body (1), wherein a pump cover (2) is arranged at the rear end of the pump body (1), a bearing box (3) is arranged on the pump cover (2), a pump shaft (4) is arranged in the bearing box (3), one end of the pump shaft (4) protrudes out of the bearing box (3), the other end of the pump shaft is fixedly connected with an impeller (6) through an impeller nut (5), a mechanical seal (7) is arranged on the pump shaft (4), the petrochemical process pump is characterized in that a positioning hole (16) is arranged at the bottom of the pump body (1), the pump cover (2) is connected with the bearing box (3) through a spigot (19), a brass retainer (26) is arranged on a bearing, temperature measuring holes (21) are formed in a deep groove ball bearing (8) and an angular contact ball bearing (9) in the bearing box (3), and vibration measuring holes (20) are formed in the axial direction, the top portion and the radial direction of the bearing box (3), the pump is characterized in that a winding pipe (15) is arranged on the bearing box (3), a high-point exhaust hole (17) and a low-point exhaust hole (18) are formed in a sealing cavity formed between the pump body (1) and the pump cover (2), and a clamping type packaging seal (22) is arranged between the pump shaft (4) and the impeller (6).

2. A petrochemical process pump based on API610 of claim 1, wherein the depth of the seam allowance connecting the pump body (1) and the pump cover (2) is 12mm, the wall thickness of the pump body (1) is 20mm, the thickness of the pump support frame (23) on the pump body (1) is 50mm, the thickness of the pump shell (24) on the pump body (1) is 30mm, and the thickness of the pump cover flange on the pump cover (2) is 35 mm.

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