CN211116630U - Multistage mud type full-jacket magnetic pump - Google Patents

Abstract

The utility model provides a multistage mud type full jacket magnetic drive pump, belongs to magnetic drive pump technical field, the pump body sleeve of magnetic drive pump, bearing body and link outside set up the heat preservation respectively and press from both sides the cover, press from both sides to be equipped with and exit the flange, exit flange and heat preservation steam or hot water intercommunication, seted up two holes at the bearing body to the entry, the export through companion flange and heat exchanger link to each other, be equipped with the flange at the outlet pipe way of heat exchanger, link to each other with the measuring pump interface. The magnetic pump has high lift; preventing crystallization and other phenomena; the heat exchanger is additionally arranged, and the cooling of the motor and the sliding bearing assembly is realized by exchanging heat with the cleaning medium; the metering pump is additionally arranged, and the particle medium is completely not contacted with the sliding bearing and the inner cavity of the isolation sleeve by pressurizing the metering pump, so that the bad phenomena of abrasion and blockage of the sliding bearing, scratching and leakage of the isolation sleeve component and the like are avoided.

Description

Multistage mud type full-jacket magnetic pump

Technical Field

The utility model belongs to the technical field of the magnetic drive pump, specifically be a multistage mud type presss from both sides cover magnetic drive pump entirely.

Background

The magnetic pump is one kind of no-leakage pump, and converts the easy leakage dynamic sealing structure of common centrifugal pump into zero leakage static sealing structure, so as to solve the problem of leakage, overflow, dripping and leakage. Can be used for conveying toxic, flammable and explosive, volatile, corrosive, radioactive and other liquid media, and is widely applied to various fields of chemical industry, petrochemical industry, medicine, textile, nuclear power, refrigeration and the like.

When the characteristics, the working condition requirements and the like of the conveying medium are different, the requirements on the magnetic pump are also different greatly. In response to the working condition of higher lift, a multistage magnetic pump can be adopted; the conveyed medium is granular and is easy to block a sliding bearing assembly, and when the isolating sleeve assembly is scratched, a magnetic pump with a metering pump and a heat exchanger can be adopted; the medium has requirements on the temperature of the working environment, and when the medium is subjected to low-temperature condensation, crystallization or self-polymerization, a magnetic pump with a heat-preservation jacket type is adopted. However, to solve the problem of the mixed operation of several or more complicated conditions, the magnetic pump has a great challenge.

SUMMERY OF THE UTILITY MODEL

The utility model provides a multistage slurry magnetic pump, which realizes high lift by arranging a multistage impeller; the pump body sleeve, the bearing body and the connecting frame are externally provided with jackets, and the heat preservation is carried out on the medium, so that the phenomena of crystallization and the like are prevented; the heat exchanger is additionally arranged, and the cooling of the motor and the sliding bearing assembly is realized by exchanging heat with the cleaning medium; the metering pump is additionally arranged, and the particle medium is completely not contacted with the sliding bearing and the inner cavity of the isolation sleeve by pressurizing the metering pump, so that the bad phenomena of abrasion and blockage of the sliding bearing, scratching and leakage of the isolation sleeve component and the like are avoided.

The utility model adopts the following technical scheme:

the utility model provides a multistage mud type presss from both sides cover magnetic drive pump entirely, the pump body sleeve, the bearing body and the link outside of magnetic drive pump set up the heat preservation respectively and press from both sides the cover, it is equipped with the import and export flange to press from both sides the cover, import and export flange and heat preservation steam or hot water intercommunication, seted up two holes at the bearing body to link to each other through companion flange and the entry, the export of heat exchanger, be equipped with the flange at the outlet pipe way of heat exchanger, link to each other with the measuring pump.

Furthermore, the heat-insulating jacket is annular, and an inlet flange and an outlet flange are respectively arranged above and below the heat-insulating jacket.

Furthermore, two radial holes, namely a third hole and a sixth hole, are formed in the middle section of the pump shaft of the magnetic pump, wherein the third hole is close to the first sliding bearing assembly, the sixth hole is close to the second sliding bearing assembly, two holes, namely a second hole and a tenth hole, are formed in the pump shaft in the axial direction, the third hole is connected with the second hole, the sixth hole is connected with the tenth hole, the fifth cavity and the seventh cavity are connected with the tenth hole through the sixth hole, the wear ring of the magnetic pump is provided with a first hole, the ninth cavity and the sixth cavity are connected through the first hole, the upper end of the bearing body is provided with a ninth hole and a fourth hole, the first mating flange and the eighth cavity are connected with the fourth hole through the ninth hole, the lower end of the bearing body is provided with a fifth hole and a fifth hole, the second mating flange is connected with the seventh cavity through the fifth hole, and the eighth hole is formed above the connecting frame, a seventh hole is arranged below the first cavity, wherein the fourth cavity is connected with the first cavity through the eighth hole, and the fourth cavity is connected with the first cavity through the seventh hole.

Further, the first hole is an inclined hole.

The outside of the pump body sleeve, the bearing body and the connecting frame is respectively provided with a heat-insulating jacket, an inlet flange and an outlet flange on the jacket are used for leading in heat-insulating steam or hot water, two holes are formed in the bearing body, and the bearing body is connected with an inlet and an outlet of a heat exchanger through mating flanges. And a flange is added on an outlet pipeline of the heat exchanger and is used as a metering pump interface.

The utility model discloses an advantage and effect do:

the utility model relates to a multistage slurry magnetic pump, which realizes high lift by arranging a multistage impeller; the pump body sleeve, the bearing body and the connecting frame are externally provided with jackets, and the heat preservation is carried out on the medium, so that the phenomena of crystallization and the like are prevented; the heat exchanger is additionally arranged, and the cooling of the motor and the sliding bearing assembly is realized by exchanging heat with the cleaning medium; the metering pump is additionally arranged, and the particle medium is completely not contacted with the sliding bearing and the inner cavity of the isolation sleeve by pressurizing the metering pump, so that the bad phenomena of abrasion and blockage of the sliding bearing, scratching and leakage of the isolation sleeve component and the like are avoided.

Drawings

Fig. 1 is a schematic structural view of the multistage mud type full-jacket magnetic pump of the present invention.

The components in the figure: 1 is a suction end, 2 is a discharge end, 3 is a wear ring, 4 is a first plain bearing assembly, 5 is a second plain bearing assembly, 6 is a pump body sleeve, 7 is a bearing body, 8 is a connecting frame, 9 is a heat exchanger, 10 is a first flange, 11 is a heat exchanger inlet, 12 is a heat exchanger outlet, 13 is a second flange, 14 is a third flange, 15 is a fourth flange, 16 is a fifth flange, 17 is a sixth flange, 18 is a seventh flange, 19 is a first companion flange, 20 is a second companion flange, 21 is a first chamber, 22 is a second chamber, 23 is a third chamber, 24 is a fourth chamber, 25 is a fifth chamber, 26 is a sixth chamber, 27 is a seventh chamber, 28 is an eighth chamber, 29 is a first bore, 30 is a second bore, 31 is a third bore, 32 is a fourth bore, 33 is a fifth bore, 34 is a sixth bore, 35 is a seventh bore, 36 is an eighth bore, 37 is a ninth bore, a ninth chamber 38, a pump shaft 39, and a tenth bore 40.

Detailed Description

The novel product is described in detail below with reference to the attached drawings.

Welding an annular jacket on the outer ring of the pump body sleeve 6, welding a second flange 13 above the jacket, welding a third flange 14 below the jacket, welding an annular jacket on the outer ring of the bearing body 7, welding a fourth flange 15 above the jacket, welding a fifth flange 16, welding an annular jacket on the outer ring of the connecting frame 8, welding a sixth flange 17 above the jacket, welding a seventh flange 18 below the jacket, welding the first flange 10 on the outlet pipeline of the heat exchanger 9, opening two radial holes, namely a third hole 31 and a sixth hole 34, at the middle position of the pump shaft 39, wherein the third hole 31 is close to the first sliding bearing assembly 4, the sixth hole 34 is close to the second sliding bearing assembly 5, opening two holes, namely a second hole 30 and a tenth hole 40, in the axial direction of the pump shaft 39, wherein the third hole 31 is connected with the second hole 30, the sixth hole 34 is connected with a tenth hole 40, the sixth hole 34 is connected with the tenth hole 40, and the fifth chamber 25 is communicated with the seventh chamber 27, an inclined hole first hole 29 is formed in the wear-resistant ring 3, the first hole 29 is communicated with a ninth chamber 38 and a sixth chamber 26, a radial hole ninth hole 37 and an axial hole fourth hole 32 are formed in the upper end of the bearing body 7, the ninth hole 37 and the axial hole fourth hole 32 are communicated with a first mating flange 19 and an eighth chamber 28, a radial hole fifth hole 33 is formed in the lower end of the bearing body 7, the fifth hole 33 is communicated with a second mating flange 20 and a seventh chamber 27, a seventh hole 35 is formed below an eighth hole 36 formed in the upper portion of the connecting frame 8, the eighth hole 36 is communicated with a fourth chamber 24 and a first chamber 21, and the seventh hole 35 is also communicated with the fourth chamber 24 and the first chamber 21.

To the utility model discloses a let in heat preservation steam in pressing from both sides the cover, heat preservation steam lets in from second flange 13, fourth flange 15 and sixth flange 17, discharges from third flange 14, fifth flange 16, seventh flange 18. The chemical and physical properties of the cleaning medium and the conveyed medium are similar, so that heat-insulating steam is introduced before the pump is filled, and the problem that the normal operation of the pump is influenced because the cleaning medium is crystallized, self-polymerized or condensed in a low-temperature environment to cause blockage in the pump is prevented during the pump filling. In order to ensure that the particles of the conveying medium do not block the scratch sliding bearing assembly and the isolation sleeve assembly, the device is divided into three circulation paths under the action of the supply pressure of the metering pump. The metering pump is connected to the first flange 10, and cleaning medium supplied by the metering pump enters the seventh chamber 27 through the second mating flange 20 and the fifth hole 33. Main circulation: the conveying medium enters the pump body from the suction end 1 and flows out from the discharge end 2 under the action of the multistage impellers. And a second circulation: a portion of the cleaning medium in the seventh chamber 27 enters the fifth chamber 25, the eighth chamber 28 through the sixth aperture 34, the tenth aperture 40, and then returns to the heat exchanger inlet 11 through the fourth aperture 32, the ninth aperture 37, the first mating means 19 and enters into the heat exchanger for heat exchange. This process not only carries away some of the heat generated by the magnetic eddy current losses of the motor, but also lubricates and cools the second plain bearing assembly. And a third cycle: another portion of the cleaning medium in the seventh chamber 27 enters the sixth chamber 26 through the aperture of the first plain bearing assembly 4 and then through the first aperture 29 into the ninth chamber 38 for confluence with the transport medium. This process lubricates cooling of the first plain bearing assembly 4 and prevents transport of the belt particles.

Claims (4)

1. The utility model provides a multistage mud type full jacket magnetic drive pump which characterized in that: the magnetic pump is characterized in that heat-insulating clamping sleeves are respectively arranged outside a pump body sleeve, a bearing body and a connecting frame of the magnetic pump, inlet and outlet flanges are arranged on the clamping sleeves and communicated with heat-insulating steam or hot water, two holes are formed in the bearing body and connected with an inlet and an outlet of a heat exchanger through mating flanges, and a flange is arranged on an outlet pipeline of the heat exchanger and connected with a metering pump connector.

2. The multistage mud type full jacket magnetic pump according to claim 1, characterized in that: the heat-insulating jacket is annular, and an inlet flange and an outlet flange are respectively arranged above and below the heat-insulating jacket.

3. The multistage mud type full jacket magnetic pump according to claim 1, characterized in that: two radial holes, namely a third hole and a sixth hole, are formed in the middle section of a pump shaft of the magnetic pump, wherein the third hole is close to the first sliding bearing assembly, the sixth hole is close to the second sliding bearing assembly, two holes, namely the second hole and the tenth hole, are formed in the pump shaft in the axial direction respectively, the third hole is connected with the second hole, the sixth hole is connected with the tenth hole, the fifth cavity and the seventh cavity are connected with the tenth hole through the sixth hole, the wear ring of the magnetic pump is provided with the first hole, the ninth cavity and the sixth cavity are connected through the first hole, the upper end of the bearing body is provided with a ninth hole and a fourth hole, the first mating flange and the eighth cavity are connected with the fourth hole through the ninth hole, the lower end of the bearing body is provided with a fifth hole and a fifth hole, the second mating flange is connected with the seventh cavity through the fifth hole, and the eighth hole is formed above the connecting frame, a seventh hole is arranged below the first cavity, wherein the fourth cavity is connected with the first cavity through the eighth hole, and the fourth cavity is connected with the first cavity through the seventh hole.

4. The multistage mud type full jacket magnetic pump according to claim 3, characterized in that: the first hole is an inclined hole.

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