CN212079632U - Water ring roots unit for vacuumizing - Google Patents

Abstract

The utility model discloses a water ring roots unit for evacuation, which comprises a base, wherein the top of the base is fixedly connected with a primary pump, the top of the base is fixedly connected with a frame, the top of the frame is fixedly connected with a top plate, the outer wall of the frame is horizontally and fixedly connected with a secondary pump and a tertiary pump above the primary pump, and the bottom of the top plate is fixedly connected with a cooling box; the utility model discloses a set up cooling box, snakelike flat pipe, heating panel etc. can carry out effectual rapid cooling to the high temperature compressed gas of leading-in cooling box, utilize the working property of roots vacuum pump then, cool down to the pump body and the rotor of secondary pump, and as the wind regime of tertiary pump, can carry out effectual cooling to the tertiary pump simultaneously to effectively avoid secondary pump and tertiary pump because of the damage that rotor and pump body emergence friction or locking caused, improved the stability of water ring roots unit work greatly.

Description

Water ring roots unit for vacuumizing

Technical Field

The utility model relates to a water ring roots unit specifically is a water ring roots unit for evacuation.

Background

The roots water ring vacuum unit selects the water ring pump as the backing pump, which is more beneficial than other vacuum pumps, overcomes the defects of limit pressure difference (the limit pressure of the unit is greatly improved than that of the water ring pump) and low air pumping speed under certain pressure when a single water ring pump is used, and simultaneously retains the advantages that the roots pump can work quickly and has large air pumping speed. The device can be particularly suitable for pumping out a large amount of condensable steam, and is particularly obvious when the capability of a gas-filled oil-sealed mechanical vacuum pump for removing the condensable steam is insufficient, or the used solvent can deteriorate pump oil to influence the performance, or the vacuum system does not allow oil pollution. When the explosion-proof motor and the electric appliance are equipped, and the corresponding safety rules are obeyed, flammable and explosive gases can be pumped out. Therefore, the roots pump-water ring pump unit is widely used for vacuum distillation, vacuum evaporation and dehydration crystallization in the chemical industry; freeze drying in the food industry; vacuum drying in the pharmaceutical industry; polyester chips in the light textile industry; in vacuum pumping systems for high-altitude simulation tests and the like.

However, the existing water ring roots unit has poor heat dissipation effect, and the temperature of the internal rotor is greatly higher than that of the pump body after the roots vacuum pump runs for a long time, so that the high-temperature expansion of the rotor is easy to cause friction with the inner wall of the pump body, and the rotor can be directly locked when the pump is serious, thereby causing the damage of the roots vacuum pump.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a water ring roots unit for evacuation 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:

the utility model provides a water ring roots unit for evacuation, includes the base, the top fixedly connected with primary pump of base, the top fixedly connected with frame of base, the top fixedly connected with roof of frame, the outer wall of frame is located the horizontal fixedly connected with secondary pump and the tertiary pump in the top of primary pump, the bottom fixedly connected with cooling box of roof, the end of giving vent to anger of primary pump passes through the pipe and the fixed connection of the inlet end of secondary pump, the end of giving vent to anger of secondary pump passes through the pipe and the air inlet fixed connection of cooling box, the gas outlet of cooling box passes through the pipe and the air inlet fixed connection of tertiary pump, the inside of cooling box is provided with filter mechanism and two cooling body.

As a further aspect of the present invention: the filtering mechanism comprises two filter screens, the outer walls of the two filter screens are fixedly connected with the inner wall of the cooling box, and active alumina particles are arranged between the two filter screens.

As a further aspect of the present invention: the cooling body includes snakelike flat pipe, the end of intaking of snakelike flat pipe runs through the fixedly connected with water supply connector behind the inner wall of cooling box, the water outlet end of snakelike flat pipe runs through the fixedly connected with water supply connector behind the inner wall of cooling box, the inside of snakelike flat pipe evenly is provided with a plurality of through-holes that run through.

As a further aspect of the present invention: snakelike flat pipe includes a plurality of bent pipe portions and straight tube portion, and a plurality of bent pipe portions, straight tube portion are snakelike to connect gradually, two fixed plates of the inner wall symmetry fixedly connected with of cooling box, it is a plurality of the bent pipe portion respectively with the fixed plate fixed connection who corresponds.

As a further aspect of the present invention: a plurality of two relative lateral wall symmetries of straight tube portion are provided with the heating panel, the outer wall fixedly connected with reinforcing plate of heating panel, the heating panel comprises the even concatenation of a plurality of aluminum sheets, and is a plurality of be formed with a plurality of trapezoidal through-holes and hexagon through-hole between the aluminum sheet.

As a further aspect of the present invention: the appearance of trapezoidal through-hole is isosceles trapezoid, the appearance of hexagon through-hole is regular hexagon.

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

1. the utility model discloses a set up cooling box, snakelike flat pipe, heating panel etc. can carry out effectual rapid cooling to the high temperature compressed gas of leading-in cooling box, utilize the working property of roots vacuum pump then, cool down to the pump body and the rotor of secondary pump, and as the wind regime of tertiary pump, can carry out effectual cooling to the tertiary pump simultaneously to effectively avoid secondary pump and tertiary pump because of the damage that rotor and pump body emergence friction or locking caused, improved the stability of water ring roots unit work greatly.

2. The utility model discloses a set up snakelike flat pipe, fixed plate, heating panel, trapezoidal through-hole, hexagon through-hole etc. when making cooling body play quick heat transfer effect, have good stability, can avoid snakelike flat pipe and heating panel to appear rocking or violent shake after receiving high-speed air's impact, effectively improved cooling body's life.

Drawings

Fig. 1 is a schematic structural diagram of a water ring roots unit for vacuum pumping.

Fig. 2 is an enlarged view of a point a in fig. 1.

Fig. 3 is a structural schematic diagram of a snake-shaped flat pipe in a water ring roots unit for vacuumizing.

The device comprises a base 1, a rack 2, a top plate 3, a primary pump 4, a secondary pump 5, a tertiary pump 6, a cooling box 7, a filtering mechanism 8, a filter screen 9, active alumina particles 10, a snakelike flat pipe 11, a through hole 12, a bent pipe part 13, a straight pipe part 14, a water inlet joint 15, a water outlet joint 16, a fixing plate 17, a heat dissipation plate 18, an aluminum sheet 19, a trapezoidal through hole 20, a hexagonal through hole 21 and a reinforcing plate 22.

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.

Please refer to fig. 1-3, in the embodiment of the utility model, a water ring roots unit for evacuation, the on-line screen storage device comprises a base 1, base 1's top fixedly connected with primary pump 4, base 1's top fixedly connected with frame 2, frame 2's top fixedly connected with roof 3, frame 2's outer wall is located primary pump 4's horizontal fixedly connected with secondary pump 5 and tertiary pump 6 of top, roof 3's bottom fixedly connected with cooling box 7, primary pump 4's the end of giving vent to anger is through the inlet end fixed connection of pipe with secondary pump 5, secondary pump 5's the end of giving vent to anger is through the air inlet fixed connection of pipe with cooling box 7, cooling box 7's gas outlet passes through the inlet end fixed connection of pipe with tertiary pump 6, cooling box 7's inside is provided with filter mechanism 8 and two cooling body.

The primary pump 4 is a water ring vacuum pump, and the secondary pump 5 and the tertiary pump 6 are roots vacuum pumps.

The filtering mechanism 8 comprises two filter screens 9, the outer walls of the two filter screens 9 are fixedly connected with the inner wall of the cooling box 7, active alumina particles 10 are arranged between the two filter screens 9, and the air entering the three-stage pump 6 from the cooling box 7 can be effectively filtered through the arrangement of the filter screens 9 and the active alumina particles 10.

The cooling body includes snakelike flat pipe 11, and fixedly connected with water supply connector 15 behind the inner wall that cooling box 7 was run through to the end of intaking of snakelike flat pipe 11, and fixedly connected with water supply connector 16 behind the inner wall that cooling box 7 was run through to the play water end of snakelike flat pipe 11, and the inside of snakelike flat pipe 11 evenly is provided with a plurality of through-holes 12 that run through. The air entering the cooling box 7 can be cooled by introducing the coolant into the serpentine flat tube 11.

The snakelike flat pipe 11 includes a plurality of bent pipe portions 13 and straight tube portion 14, and a plurality of bent pipe portions 13, straight tube portion 14 are snakelike and connect gradually, two fixed plates 17 of the inner wall symmetry fixedly connected with of cooling box 7, a plurality of bent pipe portions 13 respectively with the fixed plate 17 fixed connection who corresponds, can guarantee snakelike flat pipe 11's stability through setting up of fixed plate 17, avoid snakelike flat pipe 11 to receive the impact back production of high-speed air and rock.

Two opposite side walls of the straight pipe parts 14 are symmetrically provided with a heat dissipation plate 18, the outer wall of the heat dissipation plate 18 is fixedly connected with a reinforcing plate 22, the heat dissipation plate 18 is formed by uniformly splicing a plurality of aluminum sheets 19, and a plurality of trapezoidal through holes 20 and hexagonal through holes 21 are formed between the aluminum sheets 19. The heating panel 18 of constituteing through the concatenation of a plurality of aluminum sheets can carry out quick heat transfer with receiving snakelike flat pipe 11, and the area of contact of heating panel 18 and air is higher than snakelike flat pipe 11's surface area greatly, effectively improves cooling body's heat exchange efficiency then, makes the air rapid cooling who gets into in the cooling box 7.

Trapezoidal through-hole 20's outward appearance is isosceles trapezoid, and hexagonal through-hole 21's outward appearance is regular hexagon, and isosceles trapezoid's trapezoidal through-hole 20 has good stability with regular hexagon's hexagonal through-hole 21, and peaceful reinforcing plate 22's setting can improve heating panel 18's bulk strength greatly, when avoiding receiving the air current impact, and heating panel 18 appears acutely trembling.

The utility model discloses a theory of operation is:

second grade pump 5 can be with the compressed air of high temperature in the cooling box 7 of discharging at the operation in-process, and snakelike flat pipe 11 in the cooling box 7 can contact with high temperature compressed air with heating panel 18, carries out quick cooling to compressed air then.

The secondary pump 5 is used as a roots vacuum pump, the process of compressing the sucked gas is not continuous, but sudden, the sucked gas is sealed in the cavity along with the rotation of the rotor, and the gas in the cavity is suddenly cooled by the box 7 along with the rotation of the rotor. Because the gas pressure in the cooling box 7 is higher, the cooled compressed air will recoil towards the pump body of the secondary pump 5, so as to effectively cool the pump body and the rotor of the secondary pump 5 through the cooled compressed air, and then the gas is pumped into the cooling box 7 again along with the rotation of the rotor.

In addition, the cooling compressed air in the cooling box 7 serves as an air source of the three-level pump 6, a good cooling effect can be achieved for the three-level pump 6, the phenomenon that the rotor of the two-level pump 5 and the rotor of the three-level pump 6 are rubbed or locked can be effectively avoided, and the using effect is good.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (6)

1. The utility model provides a water ring roots unit for evacuation, includes base (1), its characterized in that: the utility model discloses a cooling device, including base (1), the top fixedly connected with primary pump (4) of base (1), the top fixedly connected with frame (2) of base (1), the top fixedly connected with roof (3) of frame (2), the outer wall of frame (2) is located the horizontal fixedly connected with secondary pump (5) in top and tertiary pump (6) of primary pump (4), the bottom fixedly connected with cooling box (7) of roof (3), the end of giving vent to anger of primary pump (4) passes through the inlet end fixed connection of pipe with secondary pump (5), the end of giving vent to anger of secondary pump (5) passes through the air inlet fixed connection of pipe with cooling box (7), the gas outlet of cooling box (7) passes through the inlet end fixed connection of pipe with tertiary pump (6), the inside of cooling box (7) is provided with filter mechanism (8) and two cooling body.

2. The water ring roots unit for evacuation as set forth in claim 1, wherein: the filtering mechanism (8) comprises two filter screens (9), the outer walls of the filter screens (9) are fixedly connected with the inner wall of the cooling box (7), and active alumina particles (10) are arranged between the filter screens (9).

3. The water ring roots unit for evacuation as set forth in claim 1, wherein: cooling body includes snakelike flat pipe (11), fixedly connected with water supply connector (15) behind the inner wall that cooling box (7) were run through to the end of intaking of snakelike flat pipe (11), fixedly connected with water supply connector (16) behind the inner wall that cooling box (7) were run through to the play water end of snakelike flat pipe (11), the inside of snakelike flat pipe (11) evenly is provided with a plurality of through-holes (12) that run through.

4. The water ring roots unit for evacuation as claimed in claim 3, wherein: snakelike flat pipe (11) are snakelike connecting gradually including a plurality of bent pipe portion (13) and straight tube portion (14), a plurality of bent pipe portion (13), straight tube portion (14), two fixed plate (17) of the inner wall symmetry fixedly connected with of cooling box (7), and are a plurality of bent pipe portion (13) respectively with corresponding fixed plate (17) fixed connection.

5. The water ring roots unit for vacuum pumping according to claim 4, wherein: a plurality of two relative lateral walls symmetry of straight tube portion (14) are provided with heating panel (18), the outer wall fixedly connected with reinforcing plate (22) of heating panel (18), heating panel (18) are formed by a plurality of aluminum sheets (19) even concatenation, and are a plurality of be formed with a plurality of trapezoidal through-holes (20) and hexagon through-hole (21) between aluminum sheet (19).

6. The water ring roots unit for vacuum pumping according to claim 5, wherein: the appearance of trapezoidal through-hole (20) is isosceles trapezoid, the appearance of hexagon through-hole (21) is regular hexagon.

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