CN214036014U

CN214036014U - Vacuum unit with external heat exchanger

Info

Publication number: CN214036014U
Application number: CN202022434246.3U
Authority: CN
Inventors: 孙光远; 陆葆; 杨怀高; 田美玲; 潘成德; 郭伟; 常超峰
Original assignee: Xinyi Dajiang Chemical Co ltd
Current assignee: Xinyi Dajiang Chemical Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-08-24
Anticipated expiration: 2030-10-28

Abstract

The utility model relates to a vacuum unit technical field, and a vacuum unit with external heat exchanger is disclosed, comprising a water tank, water injection vacuum pump and centrifugal pump, the bottom fixed connection of water injection vacuum pump and water tank, and both ends all communicate and be equipped with the honeycomb duct, two baffles of the fixed symmetry that is equipped with in top of water tank, the top of water tank just is located two fixed first heat transfer casees that are equipped with between the baffle, the fixed second heat transfer case that is equipped with in internal surface bottom of first heat transfer case, the left end intercommunication of second heat transfer case is equipped with the inlet tube, the pipe wall other end of inlet tube is equipped with the right side intercommunication of water tank, the other end of right side honeycomb duct passes baffle and first heat transfer case and sets up with the right side intercommunication of second heat transfer case, the centrifugal pump cup joints with the pipe wall of right side honeycomb duct is fixed. The utility model discloses a water-cooling and forced air cooling's cooperation goes on, carries out quick heat dissipation to the inside circulating water of water tank of vacuum unit.

Description

Vacuum unit with external heat exchanger

Technical Field

The utility model relates to a vacuum unit technical field especially relates to a vacuum unit with external heat exchanger.

Background

The existing vacuum unit usually uses a water jet vacuum unit and is assisted by a centrifugal pump, so that the vacuum pumping operation is carried out, and because liquid is pumped and transmitted through the body, water can have certain heat in the vacuum pumping process, and the stable vacuum pumping operation can be influenced.

The existing vacuum unit is usually externally provided with an external heat exchanger for vacuum pumping, liquid in a water tank is radiated, but the heat exchanger provided with a heat exchange tube commonly used has low radiating efficiency on the liquid, and stable operation of the vacuum unit is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the liquid inside the water tank dispels the heat when general external heat exchanger of vacuum unit can not effectual evacuation among the prior art, and the vacuum unit with external heat exchanger that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a vacuum unit with an external heat exchanger comprises a water tank, a water jet vacuum pump and a centrifugal pump, wherein the water jet vacuum pump is fixedly connected with the bottom of the water tank, two ends of the water jet vacuum pump are communicated with a flow guide pipe, two symmetrical baffle plates are fixedly arranged on the top of the water tank, a first heat exchange box is fixedly arranged on the top of the water tank and between the two baffle plates, a second heat exchange box is fixedly arranged at the bottom of the inner surface of the first heat exchange box, a water inlet pipe is communicated with the left end of the second heat exchange box, the other end of the pipe wall of the water inlet pipe is communicated with the right side of the water tank, the other end of the flow guide pipe on the right side penetrates through the baffle plates and the first heat exchange box and is communicated with the right side of the second heat exchange box, the centrifugal pump is fixedly sleeved with the pipe wall of the flow guide pipe on the right side and is fixedly connected with the right side of the water tank, a heat exchange mechanism is arranged in the second heat exchange box, and a quick cooling mechanism and an auxiliary heat exchange mechanism are arranged on the top of the second heat exchange box, two symmetrically arranged support frames are fixedly arranged at the bottom of the water tank.

Preferably, heat transfer mechanism includes coolant tank and condenser pipe, the condenser pipe sets up with coolant tank's left side intercommunication, and the other end passes first heat transfer case and extends to the inside second heat transfer incasement portion, the other end of condenser pipe passes the top right side of second heat transfer case and sets up with coolant tank's right side intercommunication, the left end of condenser pipe is fixed and is cup jointed the pump body, the pump body and coolant tank's left side fixed connection.

Preferably, quick cooling body includes the montant, the pole wall of montant is connected with cooling water tank's top through first rolling bearing is rotated, and the lower extreme is located inside cooling water tank and fixed the cup joint has the stirring leaf.

Preferably, supplementary heat transfer mechanism includes hollow block and first bevel gear, the internal surface both ends of hollow block all rotate through the second rolling bearing and are connected with the horizontal pole, the fixed flabellum that has cup jointed of pole wall of horizontal pole, the left side intercommunication of hollow block is equipped with the air-supply line, the other end of air-supply line and the top intercommunication setting of first heat transfer case, the right-hand member of horizontal pole passes hollow block and fixed second bevel gear that is equipped with, the fixed diaphragm that is equipped with in right side of hollow block, the fixed motor that is equipped with in top of diaphragm, the motor output pass the diaphragm and with the pole wall fixed connection of montant, first bevel gear cup joints with the pole wall of montant is fixed to mesh with second bevel gear.

Preferably, two symmetrically arranged air inlets are formed in the right side of the hollow block.

Preferably, a liquid inlet is formed in the right side of the top of the cooling water tank, and the condensation pipe is wound in the second heat exchange box.

Compared with the prior art, the utility model provides a vacuum unit with external heat exchanger possesses following beneficial effect:

1. this vacuum unit with external heat exchanger through the heat transfer mechanism and the supplementary heat transfer mechanism that are equipped with, through water-cooling and air-cooled cooperation, improves the radiating efficiency when the inside liquid evacuation of water tank.

2. This vacuum unit with external heat exchanger through the quick cooling body who is equipped with, when the inside cooling water of condenser pipe carries out circulative cooling, makes the cooling water carry out quick flow through the stirring to the cooling water after the heat dissipation dispels the heat, improves the subsequent radiating effect of cooling water.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses simple structure goes on through the cooperation of water-cooling and air-cooling for the vacuum unit carries out quick heat dissipation to the inside liquid of water tank when carrying out the evacuation operation, thereby makes the vacuum unit can carry out the steady operation.

Drawings

Fig. 1 is a schematic structural view of a vacuum unit with an external heat exchanger according to the present invention;

fig. 2 is an enlarged view of a portion a of fig. 1.

In the figure: the device comprises a water tank 1, a water jet vacuum pump 2, a centrifugal pump 3, a draft tube 4, a baffle 5, a first heat exchange box 6, a second heat exchange box 7, a cooling water tank 8, a condenser 9, a pump body 10, a vertical rod 11, a stirring blade 12, a hollow block 13, a first bevel gear 14, a cross rod 15, fan blades 16, an air inlet pipe 17, a second bevel gear 18, a transverse plate 19, a motor 20 and a water inlet pipe 21.

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.

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, and are only for convenience of description and simplicity of 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 therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, a vacuum unit with an external heat exchanger comprises a water tank 1, a water injection vacuum pump 2 and a centrifugal pump 3, wherein the centrifugal pump 3 is arranged to enable liquid in the water tank 1 to generate circulating flow, the water injection vacuum pump 2 is fixedly connected with the bottom of the water tank 1, both ends of the water injection vacuum pump 2 are communicated with a flow guide pipe 4, the flow guide pipe 4 is arranged to facilitate circulation of circulating water in the water tank 1, two symmetrical baffles 5 are fixedly arranged at the top of the water tank 1, a first heat exchange box 6 is fixedly arranged at the top of the water tank 1 and between the two baffles 5, a second heat exchange box 7 is fixedly arranged at the bottom of the inner surface of the first heat exchange box 6, a water inlet pipe 21 is arranged at the left end of the second heat exchange box 7 in a communicating manner, the other end of the pipe wall of the water inlet pipe 21 is arranged in a communicating manner with the right side of the water tank 1, the other end of the flow guide pipe 4 at the right side penetrates through the baffles 5 and the first heat exchange box 6 and is arranged in a communicating manner with the right side of the second heat exchange box 7, centrifugal pump 3 cup joints with the pipe wall of right side honeycomb duct 4 is fixed to with the right side fixed connection of water tank 1, be equipped with heat transfer mechanism in the second heat transfer case 7, the top of second heat transfer case 7 is provided with quick cooling body and supplementary heat transfer mechanism, the fixed support frame that is equipped with two symmetries and sets up in 1 bottom of water tank sets up the support frame and carries out stable support to water tank 1.

Heat transfer mechanism includes coolant tank 8 and condenser pipe 9, condenser pipe 9 sets up with coolant tank 8's left side intercommunication, and the other end passes first heat transfer case 6 and extends to inside second heat transfer case 7, the other end of condenser pipe 9 passes the top right side of second heat transfer case 7 and sets up with coolant tank 8's right side intercommunication, the left end of condenser pipe 9 is fixed and has been cup jointed pump body 10, pump body 10 and coolant tank 8's left side fixed connection, set up pump body 10 and make the cooling water carry out quick circulation flow in condenser pipe 9.

Quick cooling body includes montant 11, and the pole wall of montant 11 is rotated through first rolling bearing and cooling water tank 8's top and is connected, and the lower extreme is located cooling water tank 8 inside and the fixed cup joint has stirring leaf 12, sets up stirring leaf 12 and stirs and accelerate the heat dissipation to the inside cooling water of cooling water tank 8.

The auxiliary heat exchange mechanism comprises a hollow block 13 and a first bevel gear 14, both ends of the inner surface of the hollow block 13 are rotatably connected with a cross rod 15 through a second rotating bearing, the rod wall of the cross rod 15 is fixedly sleeved with fan blades 16, the left side of the hollow block 13 is communicated with an air inlet pipe 17, the other end of the air inlet pipe 17 is communicated with the top of the first heat exchange box 6, the air inlet pipe 17 is arranged to enable cooling air to flow into an annular space formed by the first heat exchange box 6 and the second heat exchange box 7, thereby fast heat dissipation is carried out to the inside circulating water of second heat exchange box 7, and the right-hand member of horizontal pole 15 passes hollow block 13 and fixed second bevel gear 18 that is equipped with, and the right side of hollow block 13 is fixed and is equipped with diaphragm 19, and the top of diaphragm 19 is fixed and is equipped with motor 20, and the output of motor 20 passes diaphragm 19 and with the pole wall fixed connection of montant 11, and first bevel gear 14 cup joints with the pole wall fixed of montant 11 to mesh with second bevel gear 18.

Two air inlets that the symmetry set up have been seted up on hollow block 13's right side, and the inlet has been seted up on cooling water tank 8's top right side, and condenser pipe 9 is the winding setting in second heat exchange box 7.

In the utility model, when the water jet vacuum pump 2 is vacuumized, the water flow in the water tank 1 is pumped, so as to dissipate the heat of the circulating water in the water tank 1, firstly, the cooling water is led to the inside of the cooling water tank 8 through the water inlet, and the pump body 10 is started to make the cooling water flow through the condenser pipe 9, then, the circulating water in the water tank 1 is led to the second heat exchange box 7 through the guide pipe 4 by using the centrifugal pump 3 in cooperation, the heat is dissipated through the contact with the condenser pipe 9 and then flows into the water tank 1 through the water inlet pipe 21, the motor 20 is started to make the vertical rod 11 drive the stirring blade 12 to rotate in the process of cooling the circulating water, so that the stirring blade 12 can rapidly stir the cooling water, the flowing of the cooling water is improved, the cooling water is timely dissipated, and simultaneously, through the transmission of the first bevel gear 14 and the second bevel gear 18, so that the flabellum 16 is rotatory to produce the cooling air, inside the space that the cooling air flowed to first heat transfer case 6 and second heat transfer case 7 and constitutes through air-supply line 17, carries out the forced air cooling heat dissipation to second heat transfer case 7 outer wall to cooperation condenser pipe 9 carries out quick heat dissipation to the circulating water, improves the radiating efficiency to the circulating water.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A vacuum unit with an external heat exchanger comprises a water tank (1), a water injection vacuum pump (2) and a centrifugal pump (3), and is characterized in that the water injection vacuum pump (2) is fixedly connected with the bottom of the water tank (1), two ends of the water injection vacuum pump are communicated with a flow guide pipe (4), two symmetrical baffles (5) are fixedly arranged at the top of the water tank (1), a first heat exchange box (6) is fixedly arranged at the top of the water tank (1) and between the two baffles (5), a second heat exchange box (7) is fixedly arranged at the bottom of the inner surface of the first heat exchange box (6), a water inlet pipe (21) is communicated with the left end of the second heat exchange box (7), the other end of the pipe wall of the water inlet pipe (21) is communicated with the right side of the water tank (1), and the other end of the flow guide pipe (4) penetrates through the baffles (5) and the first heat exchange box (6) and is communicated with the right side of the second heat exchange box (7), centrifugal pump (3) and right side the pipe wall of honeycomb duct (4) is fixed cup joints to with the right side fixed connection of water tank (1), be equipped with heat transfer mechanism in second heat transfer case (7), the top of second heat transfer case (7) is provided with quick cooling body and supplementary heat transfer mechanism, the fixed support frame that is equipped with two symmetries and sets up in water tank (1) bottom.

2. The vacuum unit with the external heat exchanger as recited in claim 1, wherein the heat exchange mechanism comprises a cooling water tank (8) and a condensation pipe (9), the condensation pipe (9) is communicated with the left side of the cooling water tank (8), the other end of the condensation pipe passes through the first heat exchange box (6) and extends into the second heat exchange box (7), the other end of the condensation pipe (9) passes through the right side of the top of the second heat exchange box (7) and is communicated with the right side of the cooling water tank (8), a pump body (10) is fixedly sleeved at the left end of the condensation pipe (9), and the pump body (10) is fixedly connected with the left side of the cooling water tank (8).

3. The vacuum unit with the external heat exchanger as claimed in claim 1, wherein the rapid cooling mechanism comprises a vertical rod (11), a rod wall of the vertical rod (11) is rotatably connected with the top of the cooling water tank (8) through a first rotating bearing, and the lower end of the rapid cooling mechanism is located inside the cooling water tank (8) and is fixedly sleeved with a stirring blade (12).

4. The vacuum unit with the external heat exchanger as recited in claim 1, wherein the auxiliary heat exchange mechanism comprises a hollow block (13) and a first bevel gear (14), both ends of the inner surface of the hollow block (13) are rotatably connected with a cross bar (15) through a second rotating bearing, the bar wall of the cross bar (15) is fixedly sleeved with fan blades (16), the left side of the hollow block (13) is communicated with an air inlet pipe (17), the other end of the air inlet pipe (17) is communicated with the top of the first heat exchange box (6), the right end of the cross bar (15) penetrates through the hollow block (13) and is fixedly provided with a second bevel gear (18), the right side of the hollow block (13) is fixedly provided with a transverse plate (19), the top of the transverse plate (19) is fixedly provided with a motor (20), the output end of the motor (20) penetrates through the transverse plate (19) and is fixedly connected with the bar wall of the vertical bar (11), the first bevel gear (14) is fixedly sleeved with the rod wall of the vertical rod (11) and is meshed with the second bevel gear (18).

5. The vacuum unit with the external heat exchanger as claimed in claim 4, characterized in that two symmetrically arranged air inlets are provided on the right side of the hollow block (13).

6. The vacuum unit with the external heat exchanger as claimed in claim 2, wherein a liquid inlet is arranged at the right side of the top of the cooling water tank (8), and the condenser pipe (9) is wound in the second heat exchange tank (7).