TWM564643U - Upright pump capable of blocking corrosive gases - Google Patents

Abstract

An upright pump capable of preventing corrosive gases, comprising a motor unit, a casing unit, a leakage preventing unit and an impeller. The motor unit includes a motor body, a shaft center and a positioning surface. The shell unit includes a tubular member connected to the motor unit and a water trap fixed to the bottom of the tubular member. The leak preventing unit has a a wear-resistant member and a locking member, the wear-resistant member is made of a wear-resistant material and is airtightly attached to the positioning surface, the locking member is detachably fixed to the shaft center and the wear-resistant member is provided to maintain a gas-tight contact The locking member is airtightly attached to the wear part on the positioning surface. With the arrangement of the leakage preventing unit, the chemical gas with high acidity or high alkalinity can be prevented from infiltrating into the motor body, and the service life of the motor unit can be prolonged.

Description

Upright pump that blocks corrosive gases

The present invention relates to a pump for transporting fluids, and more particularly to a vertical pump that blocks corrosive gases.

Upright pumps are widely used to transport chemical liquids having high acidity or high alkalinity, for example, in the patent application No. 551425, which includes a motor unit, a body cover connected to the motor unit, and a motor unit. The drive produces a running blade and a water transfer seat attached to the bottom of the outer cover. The motor unit has a shaft center and a sleeve disposed outside the shaft center, and a shaft cover ring is disposed between the motor unit and the outer cover, and a ceramic ring is further disposed inside the shaft cover ring. Upper and lower shaft seals are respectively nested on the sleeves on the upper and lower sides of the ceramic ring.

Although the ceramic ring is matched with the upper and lower shaft seals, the chemical gas can be prevented from overflowing and eroding the internal components of the motor group, but when the motor group is running, the upper and lower shaft seals on the upper and lower sides of the ceramic ring are It will be in contact with the ceramic ring for friction. It may cause wear and tear for a period of time and affect the leakage prevention effect. The upper and lower shaft seals must be replaced periodically, which is not convenient.

Accordingly, it is an object of the present invention to provide a vertical pump that can prolong the service life and prevent corrosive gases.

Thus, the present invention is a vertical pump capable of preventing corrosive gases, comprising a motor unit, a casing unit, a leakage preventing unit and an impeller. The motor unit includes a motor body, an axis extending downward from the motor body and extending along an axis, and a positioning surface adjacent to the motor body and intersecting the axis. The cover unit includes a tubular member connected to the motor unit and having a hollow cylindrical shape, and a water retaining seat fixed to the bottom of the tubular member, the tubular member having a chamber through which the shaft is inserted, The water trap has a water chamber that communicates with the chamber. The leakage preventing unit comprises a wear-resistant member and a locking member, the wear-resistant member is made of a wear-resistant material and is disposed in the chamber, and includes a first end surface that is airtightly attached to the positioning surface, and along the axis Conversely opposite to the second end surface of the first end surface, and a through hole communicating with the first end surface and the second end surface for the shaft center, the locking member is detachably fixed to the shaft center and disposed in the housing, and Maintaining a first end surface of the wear member with the positioning surface, the locking member includes a top surface that is airtightly attached to the second end surface, a bottom surface opposite the top surface along the axis, and a connection a shaft hole through which the top surface and the bottom surface are bored. The impeller is coupled to the shaft center and housed in the water chamber.

The utility model has the advantages that the wear-resistant member is made of a wear-resistant material, and the wear-resistant member is used to maintain a gas-tight contact against the positioning surface, and the sealing member is air-tightly applied to the second end surface. It can prevent upward leakage of highly acidic or highly alkaline chemical gases to ensure the service life of the motor unit is extended.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , an embodiment of the vertical pump capable of preventing corrosive gas includes a motor unit 10 , a casing unit 20 , a leakage preventing unit 30 , an oil seal 40 and an impeller . 50.

The motor unit 10 includes a motor body 11, a shaft center 12 extending downward from the motor body 11 and extending along an axis L, and a positioning frame member 13 fixed to the motor body 11 for the shaft center 12 to pass through. An exhaust wheel 14 disposed inside the positioning frame member 13 and fixed to the shaft core 12, and a leakage preventing ring 15.

The positioning frame member 13 has an upper plate 131 abutting against the motor body 11 , a lower plate 132 spaced apart from the upper plate 131 along the axis L, and a plurality of connecting to the upper plate 131 and the lower plate 132 . The connecting rib 133, the lower plate 132 has a positioning surface 135 opposite to the upper side 134 of the exhaust wheel 14, opposite to the upper side 134 along the axis L, and perpendicularly intersecting the axis L, a counterbore 136 recessed toward the positioning surface 135 by the upper side 134, and a through hole 137 connected to the counterbore 136 by the positioning surface 135 and having a smaller diameter than the counterbore 136, the counterbore 136 and the through hole 137 are provided for the shaft Heart 12 is worn. The locating surface 135 is treated with a polished surface.

The cover unit 20 includes a tubular member 21 connected to the lower plate 132 of the positioning frame member 13 and having a hollow cylindrical shape, and a water trap 22 fixed to the bottom of the tubular member 21. The tubular member 21 has a A chamber 211 for the shaft 12 to pass through, the water trap 22 having a water chamber 221 communicating with the chamber 211. The leakage preventing ring 15 is installed between the lower plate 132 and the top of the cylindrical member 21.

The leakage preventing unit 30 includes a wear-resistant member 31, a locking member 32 and a leakage preventing ring 33. The wear-resistant member 31 is made of a wear-resistant material. The embodiment is made of a material of a polytetrafluoroethylene (PTFE) and disposed in the chamber 211. The wear-resistant member 31 includes a gas. a first end surface 311 of the positioning surface 135, a second end surface 312 opposite to the first end surface 311 along the axis L, and a first end surface 311 and the second end surface 312 are connected to the shaft The through hole 313 is formed by the core 12. The locking member 32 is detachably fixed to the shaft 12 and disposed in the chamber 211, and the first end surface 311 of the wear member 31 is airtightly adhered to the positioning surface 135. The locking member 32 includes a ring sleeve 34 having a hollow block shape, and a set screw 35 for locking the ring sleeve 34 to the shaft core 12, the ring sleeve 34 having a gas-tight contact against the top surface 341 of the second end surface 312, along the top The axis L is opposite to the bottom surface 342 of the top surface 341, a shaft hole 343 that communicates with the top surface 341 and the bottom surface 342 and is disposed through the shaft core 12, and an inner annular surface 344 that defines the shaft hole 343. The outer annular surface 345 of the inner annular surface 344, and a screw hole 346 connected to the inner annular surface 344 by the outer annular surface 344, the inner annular surface 344 has a top annular surface 341 adjacent to the top surface 341 for the leakage preventing ring A nested positioning ring groove 347 is disposed between the ring sleeve 34 and the shaft center 12 and maintains airtightness between the ring sleeve 34 and the shaft core 12. The top surface 341 of the collar 34 of the locking member 32 is treated by a polished surface, the set screw 35 is threaded into the threaded hole 346, and the collar 34 is positioned relative to the mandrel 12.

The oil seal 40 is mounted in the counterbore 136 and maintains airtightness between the shaft 12 and the lower plate 132.

The impeller 50 is coupled to the shaft core 12 and received in the water chamber 221 .

In order to further understand the functions, technical means, and expected effects of the cooperation of the various components of the present invention, the operation mode of the present invention will be described, and it is believed that the present invention can be more deeply and specifically understood.

When assembling, the exhaust wheel 14 is first assembled to the shaft 12, and after the oil seal 40 is assembled in the counterbore 136 of the positioning frame member 13, the positioning frame member 13 is abutted against the motor. The shaft 11 is disposed in the oil seal 40. At this time, the motor unit 10 is disposed downward, and the wear-resistant member 31 and the locking member 32 of the leakage preventing unit 30 are sequentially sleeved on the body. The wear member 31 is resisted on the lower plate 132 by the self-weight of the locking member 32, and the locking member 32 is locked on the shaft 12 by the positioning screw 35, and then The impeller 50 is locked to the end of the shaft 12, and the two ends of the tubular member 21 are respectively locked with the water-repellent seat 22 and the motor body 21 to achieve the assembly purpose.

When the assembly is completed, the top surface 341 of the ring sleeve 34 of the locking member 32 and the positioning surface 135 are polished surface treatment, and the material characteristics of the wear-resistant member 31 ensure the loop sleeve 34 and the wear-resistant member. The contact surface of the lower plate 132, that is, the positioning surface 135 and the first end surface 311, the top surface 341 and the second end surface 312 are in close contact with each other, so that the airtightness can be maintained.

As shown in FIG. 2 and FIG. 3, in use, the motor unit 10 is disposed upward, and the leakage preventing unit 30 is disposed to prevent the syrup gas pumped through the impeller 50 from overflowing to erode the motor body 11. The internal components, but when the motor unit 10 is in operation, the wear resistance of the wear-resistant member 31 is also utilized, and wear and tear can be avoided due to contact friction. The wear-resistant member 31 does not need to be replaced frequently, and is convenient to use.

In summary, the novel vertical pump capable of preventing corrosive gas has a simple overall structure, is easy to manufacture, and can prevent the overflow of the syrup gas, and can truly achieve the purpose of the present invention.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

10‧‧‧Motor unit
11‧‧‧Motor body
L‧‧‧ axis
12‧‧‧Axis
13‧‧‧ Positioning frame
131‧‧‧Upper board
132‧‧‧ Lower board
133‧‧‧ Connecting ribs
134‧‧‧ upper side
135‧‧‧ positioning surface
136‧‧‧ counterbore
137‧‧‧Perforation
14‧‧‧Exhaust wheel
15‧‧‧ leakproof ring
20‧‧‧Shell unit
21‧‧‧Clocks
211‧‧ ‧ room
22‧‧‧汲水座
221‧‧‧Water storage room
30‧‧‧Resistance unit
31‧‧‧Abrasion parts
311‧‧‧ first end face
312‧‧‧ second end
313‧‧‧through holes
32‧‧‧Locking parts
33‧‧‧ leakproof ring
34‧‧‧环套套
341‧‧‧ top surface
342‧‧‧ bottom
343‧‧‧Axis hole
344‧‧‧ Inner torus
345‧‧‧ outer annulus
346‧‧‧ screw holes
347‧‧‧ Ring groove
35‧‧‧Setting screws
40‧‧‧ oil seal
50‧‧‧ Impeller

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: Figure 1 is an exploded perspective view of an embodiment of a vertical pump that can resist corrosive gases; A combined cross-sectional view of the embodiment; and FIG. 3 is a partially enlarged schematic view of FIG.

Claims (7)

An upright pump capable of preventing corrosive gases, comprising: a motor unit including a motor body, an axis extending downward from the motor body and extending along an axis, and an adjacent to the motor body and intersecting a locating surface of the axis; a casing unit comprising a cylindrical member connected to the motor unit and having a hollow cylindrical shape, and a sluice seat fixed to the bottom of the tubular member, the cylindrical member having a shaft for the shaft to be worn a water chamber having a water chamber communicating with the chamber; a leakage preventing unit comprising a wear-resistant member and a locking member, the wear-resistant member being made of a wear-resistant material and disposed on the The chamber includes a first end surface that is airtightly attached to the positioning surface, a second end surface that is opposite to the first end surface along the axis, and a first end surface and a second end surface that are connected to the shaft The locking member is detachably fixed to the axial center and disposed in the housing, and the first end surface of the wear-resistant member is airtightly adhered to the positioning surface, and the locking member includes an airtight contact On the top surface of the second end face, a side opposite the axis Plane bottom surface and a top surface which communicates with the bottom surface and the axial center of the shaft hole bored supply; and an impeller, connected to the tapping axis and received in the chamber. The upright pump capable of preventing corrosive gas according to claim 1, wherein the wear-resistant member of the leak-proof unit is made of a Teflon material. The upright pump for preventing corrosive gas according to claim 1, wherein the motor unit further comprises a positioning frame member fixed to the motor body, and a fixing body disposed inside the positioning frame member and fixed to the shaft a venting wheel of the core, the positioning frame member has an upper plate abutting against the motor body, a lower plate spaced from the upper plate along the axis, and a plurality of connecting between the upper plate and the lower plate Connecting ribs, the positioning surface is disposed on the lower plate. The upright pump capable of preventing corrosive gas according to claim 3, wherein the lower plate of the motor unit further has an upper side opposite to the positioning surface along the axis and opposite to the exhaust wheel, a counterbore recessed toward the positioning surface on the upper side, and a through hole connected to the counterbore by the positioning surface, the counterbore and the perforation are provided for the shaft, and the vertical pump further comprises a mounting body An oil seal that is sealed in the counterbore and that maintains an airtight seal between the shaft and the lower plate. The upright pump for preventing corrosive gas according to claim 1, wherein the locking member of the leakage preventing unit has a ring sleeve in a hollow block shape, and a positioning screw for locking the ring sleeve to the shaft center. The leakage preventing unit further includes a leakage preventing ring installed between the ring sleeve and the shaft center to maintain airtightness between the ring sleeve and the shaft center, wherein the top surface, the bottom surface and the shaft hole are disposed on the leakage hole Loop set. The upright pump capable of preventing corrosive gas according to claim 3, wherein the motor unit further comprises a leakage preventing ring installed between the lower plate of the positioning frame member and the cylindrical member of the casing unit. The upright pump capable of preventing corrosive gas according to claim 1, wherein the positioning surface of the motor unit and the top surface of the locking member are treated by a polishing surface.