Semi-adjusting horizontal chemical axial flow pump easy to disassemble and assemble and capable of achieving forward and reverse medium inlet and outlet operation

Abstract

The utility model relates to a semi-adjusting horizontal chemical axial flow pump easy to disassemble and assemble and capable of forward and reverse medium inlet and outlet operation, the pump is a pump with a water inlet and a water outlet capable of being interchanged, and the pump comprises a front water guide cone, a runner chamber, a rear water guide cone, a pump body, a bearing body, a pump shaft and an impeller; the front water guide cone and the rear water guide cone are located at the two ends of the impeller respectively, the rear water guide cone is located in the pump body, and the runner chamber and the bearing body are located at the two ends of the pump body. The blades are fixed on the impeller seat; the two end surfaces of the impeller seat have the same size; the impeller seat is fixed on the pump shaft; the front water guide cone and the rear water guide cone are respectively mounted on two end surfaces of the impeller seat; the runner chamber is fixed on the pump body, and the bearing body is fixed on the pump body. According to the utility model, the medium can enter and exit in the axial direction and can also enter and exit in the radial direction after being simply disassembled and assembled. Functions of forward drainage and reverse water diversion can be switched, the operation mode is flexible and efficient, and the application scene is greatly expanded.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of semi-adjustable horizontal chemical axial flow pumps, specifically to a kind of semi-adjustable horizontal chemical axial flow pumps suitable for multiple working conditions, flexible and efficient operation mode and easily disassembled and assembled can be forward and reverse medium operation. BACKGROUND

[0002] Horizontal chemical axial flow pump is mainly suitable for large flow, low lift occasion, widely used in various chemical production processes, for conveying strong corrosive, viscous, high temperature and high pressure fluid medium of different properties, such as hydrochloric acid, nitric acid, sulfuric acid, etc. It is suitable for various chemical processes, oil field, metallurgy, mining and other industries, and in the application of circulation, pressurization, discharge and other work.

[0003] The medium flow direction of traditional horizontal chemical axial flow pump is axial inlet and radial outlet, without considering the design of medium reverse flow operation, cannot realize the function conversion of forward drainage and reverse water intake. The application scene is relatively single, and cannot meet the diverse work needs of users.

[0004] Therefore, a kind of easily disassembled and assembled can be forward and reverse medium, suitable for multiple working conditions, and the semi-adjustable horizontal chemical axial flow pump of simple structure, convenient adjustment, long service life and high reliability is needed. UTILITY MODEL CONTENTS

[0005] In view of the above problems, the main purpose of the utility model is to provide a kind of semi-adjustable horizontal chemical axial flow pump suitable for multiple working conditions, flexible and efficient operation mode and easily disassembled and assembled can be forward and reverse medium operation.

[0006] The utility model solves the above technical problem by the following technical scheme: a kind of easily disassembled and assembled can be forward and reverse medium operation semi-adjustable horizontal chemical axial flow pump, the easily disassembled and assembled can be forward and reverse medium operation semi-adjustable horizontal chemical axial flow pump is interchangeable pump of water inlet and water outlet, the easily disassembled and assembled can be forward and reverse medium operation semi-adjustable horizontal chemical axial flow pump includes: front guide cone, runner chamber, rear guide cone, pump body, bearing body, pump shaft, impeller;Front guide cone and rear guide cone are located at both ends of impeller respectively, rear guide cone is located in pump body, runner chamber and bearing body are located at both ends of pump body;Blade is fixed on impeller seat, and the size of both end surfaces of impeller seat is the same;Impeller seat is fixed on pump shaft, and both end surfaces of impeller seat are respectively installed front guide cone and rear guide cone;Runner chamber is fixed on pump body, and bearing body is fixed on pump body.

[0007] In the specific embodiment of the utility model, there is a step on the pump shaft, the right end of the impeller is fixed, the impeller pressing plate is pressed on the left side of the impeller, and the impeller pressing plate is fixed on the pump shaft.

[0008] In the specific embodiment of the utility model, the impeller pressing plate is fixed on the pump shaft by screw.

[0009] In the embodiment of the utility model, the front guide cone and the rear guide cone are fixed on the impeller seat by screws.

[0010] In the embodiment of the utility model, the runner chamber and the pump body are fixed by bolts and nuts, and the pump body and the bearing body are connected and fixed by studs and nuts.

[0011] In the embodiment of the utility model, the rear guide cone is replaced by a shaft sleeve.

[0012] In the embodiment of the utility model, a bearing gland is fixed on the bearing body by a screw.

[0013] In the embodiment of the utility model, the water inlet and the water outlet are distributed at an angle of 90 degrees.

[0014] The utility model discloses a semi-adjustable horizontal chemical axial flow pump which can be disassembled and assembled easily and can run in a forward direction or a reverse direction to enter or exit medium, and has the following advantages compared with common technology.

[0015] The medium in the utility model can enter in an axial direction and exit in a radial direction, or enter in a radial direction and exit in an axial direction after being disassembled and assembled simply, that is, the function conversion of forward drainage and reverse water diversion can be realized, the running mode is flexible and efficient, and the application scenarios are greatly expanded.

[0016] The pump body is used in a split type and is divided into a runner chamber and a pump body. The rear end face of the impeller is provided with a rear guide cone or a shaft sleeve having a water guide function, and the impeller seat is provided with a spherical structure, which is beneficial to adjusting the blade angle to adapt to various working conditions and can form a smooth transition between the rear guide cone and the shaft sleeve to reduce the edge resistance. When running in a reverse direction, the medium can enter the impeller section more smoothly, and the impact loss is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is one of the whole structure schematic diagrams of the utility model (with a shaft sleeve).

[0018] Figure 2 It is the second whole structure schematic diagram of the utility model (without a shaft sleeve).

[0019] Figure 3 It is a schematic diagram of the medium entering in an axial direction and exiting in a radial direction in the utility model (motor forward rotation).

[0020] Figure 4 It is a schematic diagram of the medium entering in a radial direction and exiting in an axial direction in the utility model (motor reverse rotation).

[0021] The following is the name corresponding to the mark in the utility model:

[0022] Front guide water cone 1, runner chamber 2, rear guide water cone 3, pump body 4, bearing body 5, pump shaft 6, impeller 7, impeller seat 8, impeller pressing plate 9, step 10, first sealing ring 11, second sealing ring 12, bearing pressing cover 13, front bearing 14, rear bearing 15, shaft sleeve 16, mechanical seal 17. DETAILED DESCRIPTION

[0023] The preferred embodiments of the utility model are described in detail below with reference to the drawings, so as to illustrate the technical scheme of the utility model.

[0024] The medium flow direction of the horizontal chemical axial flow pump provided by the utility model can be axial inlet and radial outlet, or radial inlet and axial outlet through simple disassembly and assembly. That is, the function conversion of forward drainage and reverse water diversion can be realized, the operation mode is flexible and efficient, and the application scenarios are greatly expanded. The following are two configuration diagrams with and without a shaft sleeve.

[0025] Figure 1 It is a whole structure schematic diagram of the utility model (with a shaft sleeve), Figure 2 It is a whole structure schematic diagram of the utility model (without a shaft sleeve). As shown in Figure 1 and 2 The utility model discloses a half-adjustable horizontal chemical axial flow pump of easy disassembly and assembly and reversible inlet and outlet medium operation, which is a pump with interchangeable water inlet and water outlet, comprising a front guide water cone 1, a runner chamber 2, a rear guide water cone 3, a pump body 4, a bearing body 5 and a pump shaft 6.

[0026] The front guide water cone 1 and the rear guide water cone 3 are respectively located at both ends of the impeller, the rear guide water cone 2 is located in the pump body, the runner chamber 3 and the bearing body 5 are located at both ends of the pump body 4, the blades are fixed on the impeller seat 8, and the two end faces of the impeller seat 8 are of the same size; the impeller seat 8 is fixed on the pump shaft 6, the two end faces of the impeller seat 8 are respectively provided with the front guide water cone 1 and the rear guide water cone 3; the runner chamber 2 is fixed on the pump body 4, and the bearing body 5 is fixed on the pump body 4.

[0027] The pump shaft 6 is provided with a step 10, the step 10 fixes the right end of the impeller, an impeller pressing plate 9 is pressed on the left side of the impeller, and the impeller pressing plate 9 is fixed on the pump shaft 6. In the specific implementation process, the impeller pressing plate 9 of the utility model is screwed on the pump shaft 6.

[0028] In the specific implementation process, the front guide water cone 1 and the rear guide water cone 3 are both screwed on the impeller seat. The runner chamber 2 and the pump body 4 are fixed through bolts and nuts, and the pump body 4 and the bearing body 5 are connected and fixed through studs and nuts. The front guide water cone 1, the shaft sleeve 16 and the rear guide water cone 3 are all screwed on the impeller.

[0029] The contact surface between the front guide vane 1 and the impeller seat 8 is provided with a first sealing ring 11; the contact surface between the rear guide vane and the impeller seat is provided with a second sealing ring 12.

[0030] The bearing body 5 is fixed with a bearing pressing cover 13 through screws; the bearing body 5 is provided with a front bearing 14 and a rear bearing 15, and the pump shaft 6 is provided with a shaft sleeve 16. Figure 1 ).

[0031] In the specific implementation process, the water inlet and the water outlet of the utility model are distributed at 90 degrees.

[0032] The pump body is used in a split type, and is divided into a runner chamber and a pump body. The rear end surface of the impeller is provided with a rear guide vane or a shaft sleeve with a water guide function, and the impeller seat is provided with a spherical structure, which is beneficial to adjusting the blade angle to adapt to various working conditions, and can form a smooth transition between the rear guide vane and the shaft sleeve to reduce the edge resistance. When the reverse operation is performed, the medium can enter the impeller section more smoothly, and the impact loss is reduced.

[0033] Referring to Figure 1 and 2 , the mechanical seal 17 of the utility model is fixed on the pump body 4 through a stud nut, and the bearing is fixed by the shaft 6, the bearing body 5 and the bearing pressing cover 13.

[0034] The two end surfaces of the impeller seat have the same size, and the positive installation and reverse installation functions can be realized. When the medium flow direction needs to be changed from the axial inlet to the radial outlet to the radial inlet to the axial outlet, the shaft sleeve configuration can sequentially disassemble the runner chamber, the front guide vane, the impeller pressing plate, the impeller and the shaft sleeve, and then reversely assemble the impeller. The configuration without the shaft sleeve can sequentially disassemble the runner chamber, the front guide vane, the impeller pressing plate, the impeller and the rear guide vane, and then reversely assemble the impeller. The motor is reversely rotated, and the function conversion of the positive drainage and the reverse water diversion can be realized, as shown in Figure 3 , Figure 4 .

[0035] Figure 3 Fig. 4 is a schematic view of the medium axial inlet and radial outlet in the utility model (the motor is positively rotated), Figure 4 Fig. 5 is a schematic view of the medium radial inlet and axial outlet in the utility model (the motor is reversely rotated), as shown in Figure 3 and 4 . Figure 3 Fig. 6 shows that the motor is positively rotated, Figure 4 Fig. 7 shows that the motor is reversely rotated, the medium enters the flow passage from the blade inlet edge, and exits from the outlet edge. From the inlet, the impeller rotates counterclockwise, so that the function conversion of the positive drainage and the reverse water diversion needs to be realized by reversing the impeller and the motor.

[0036] The two end surfaces of the impeller seat have the same size, the connection size and the matching size of the front guide vane and the shaft sleeve and the rear guide vane are the same, so that the impeller can be directly assembled after being reversed.

[0037] Figure 3 The first end face 18 is located at the inlet edge 20, and the second end face 19 is located at the outlet edge 21. Figure 4 The first end face 18 is located at the inlet edge 20, and the second end face 19 is located at the outlet edge 21.

[0038] The medium flow direction of the horizontal chemical axial flow pump can be axial inlet and radial outlet, or radial inlet and axial outlet after simple disassembly and assembly.

[0039] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements. These changes and improvements all fall within the scope of the claimed utility model, and the scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A semi-adjustable horizontal chemical axial flow pump that is easy to disassemble and can operate with media entering and exiting in both directions, characterized in that: The semi-adjustable horizontal chemical axial flow pump capable of running in the forward and reverse directions and capable of easily disassembling and assembling is a pump with interchangeable water inlets and outlets, and comprises a front water guide cone, a runner chamber, a rear water guide cone, a pump body, a bearing body, a pump shaft and an impeller.

2. The semi-adjustable horizontal chemical axial flow pump of claim 1, wherein: The pump shaft has a step for fixing the right end of the impeller, and an impeller pressing plate is pressed against the left side of the impeller, and the impeller pressing plate is fixed on the pump shaft.

3. The semi-adjustable horizontal chemical axial flow pump of claim 1, wherein: The impeller pressing plate is fixed on the pump shaft by means of screws.

4. The semi-adjustable horizontal chemical axial flow pump of claim 1, wherein: The front water guide cone and the rear water guide cone are fixed on the impeller seat by means of screws.

5. The semi-adjustable horizontal chemical axial flow pump of claim 1, wherein: The runner chamber and the pump body are fixed by means of bolts and nuts, and the pump body and the bearing body are fixed by means of studs and nuts.

6. The semi-adjustable horizontal chemical axial flow pump of claim 1, wherein: The rear water guide cone is replaced by a shaft sleeve.

7. The semi-adjustable horizontal chemical axial flow pump of claim 1, wherein: A bearing pressing cover is fixed on the bearing body by means of screws.

8. The semi-adjustable horizontal chemical axial flow pump of claim 1, wherein: The water inlets and the water outlets are distributed at an angle of 90°.

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