CN216008904U

CN216008904U - Vacuum pump cooling device

Info

Publication number: CN216008904U
Application number: CN202121777251.2U
Authority: CN
Inventors: 孙赞; 刘雄飞; 李华
Original assignee: Hubei Shengfuyuan Refrigeration Material Co ltd
Current assignee: Hubei Shengfuyuan Refrigeration Material Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-03-11
Anticipated expiration: 2031-08-02

Abstract

The utility model relates to the technical field of vacuum pumps, and discloses a vacuum pump cooling device which comprises a pump body, wherein a cooling assembly is detachably connected outside the pump body, the cooling assembly comprises a hollow shell and a cooling liquid storage tank, the hollow shell is n-shaped, a partition plate is arranged in the hollow shell, the partition plate and the bottom surface of the hollow shell form an inner layer, the partition plate and the top surface of the hollow shell form an outer layer, a water inlet pipe penetrates through the outer layer to be communicated with the center of the top of the inner layer, a plurality of water through holes are formed in the bottom of the partition plate, a water outlet pipe is arranged at the top of the outer layer, the water inlet pipe is connected with the bottom of the cooling liquid storage tank through a water pump, and the water outlet pipe is connected with the top of the cooling liquid storage tank. The utility model has the following advantages and effects: the hollow shell of the cooling assembly is divided into an inner layer and an outer layer, the water inlet pipe is communicated with the inner layer, so that the cooling liquid with lower temperature can be contacted with the pump body, the cooling liquid with higher temperature is far away from the pump body, the temperature of the joint of the cooling liquid and the pump body is reduced, and the cooling efficiency is improved.

Description

Vacuum pump cooling device

Technical Field

The utility model relates to the technical field of vacuum pumps, in particular to a cooling device of a vacuum pump.

Background

In the refrigerant filling process, a vacuum pump is needed to vacuumize the filling machine, so that the vacuum pump with high power needs to be used for long-time operation, the vacuum pump is easy to generate heat in the operation process, and the vacuum pump is damaged due to untimely cooling.

PCT international patent publication No. CN110651124A discloses a vacuum pump including a casing having a cooling structure which is simple, excellent in cooling efficiency, and excellent in productivity. A vacuum pump of one embodiment of the present invention has a pump housing and a cooling tube. The pump housing is constructed of cast iron. The cooling tube has an outer circumferential surface and an inner circumferential surface, and is composed of stainless steel. The cooling pipe penetrates the pump housing, and the outer peripheral surface that is in close contact with the pump housing is formed of a sensitizing layer. The vacuum pump is formed by casting a pump casing made of cast iron around a cooling pipe made of stainless steel. A sensitizing layer is provided on the outer peripheral surface of the cooling tube, and the sensitizing layer is in close contact with the pump casing, so that the pump casing is efficiently cooled. The pump body is cooled by the cooling pipe, the cooling pipe penetrates through the pump shell, and the pump body can be only pre-installed during manufacturing of the pump body and cannot be modified; secondly, some impurities may be carried in the cooling liquid, and the cooling liquid needs to be cleaned in time, so that the cooling pipe is prevented from being blocked.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a vacuum pump cooling device which has the advantages that the cooling performance is good, a cooling assembly can be additionally arranged on the conventional vacuum pump, and the cooling assembly is not easy to block.

The technical purpose of the utility model is realized by the following technical scheme: including the pump body and the pump body, the pump body is external to be dismantled and is connected with cooling module, cooling module is including parcel cavity casing and coolant liquid storage tank outside the pump body, the cavity casing is the n type, be provided with the baffle in the cavity casing, the baffle constitutes the inlayer with the bottom surface of cavity casing, the baffle constitutes skin with cavity casing top surface, the inlet tube passes skin and is linked together with inlayer top center department, the baffle bottom sets up a plurality of water holes of crossing, the skin top is provided with the outlet pipe, the inlet tube passes through the water pump and links to each other with coolant liquid storage tank bottom, the outlet pipe links to each other with coolant liquid storage tank top.

The utility model is further provided with: the two ends of the inner layer in the vertical direction are provided with guide plates, the upper ends of the guide plates are connected with the bottom surface of the partition plate, two side edges of the guide plates are connected with the inner wall of the hollow shell, and the distance between the bottom ends of the guide plates and the bottom surface of the inner layer is 4-6 cm.

The utility model is further provided with: the flow guide plate bottom is provided with the swash plate, the swash plate inclines to the baffle direction, form between swash plate base and the baffle and overflow the passageway, the swash plate below forms the settling zone, inlayer bottom is provided with the slag notch, threaded connection has sealed lid on the slag notch.

The utility model is further provided with: the water passing hole is positioned above the inclined plate.

The utility model is further provided with: the bottom of the hollow shell is fixed with a plurality of support columns, the support columns are connected with the bottom surface of the pump body through bolts, and damping washers are arranged at the joints of the bolts and the bottom surface of the pump body.

The utility model is further provided with: and a heat conducting sheet is filled between the bottom surface of the hollow shell and the pump body.

The utility model is further provided with: and a plurality of annular radiating fins are uniformly fixed outside the cooling liquid storage tank.

The utility model has the beneficial effects that:

1. the cooling assembly is detachably connected to the pump body, an existing vacuum pump can be modified, the cooling effect of the vacuum pump is enhanced, the hollow shell of the cooling assembly is divided into an inner layer and an outer layer, the water inlet pipe is communicated with the inner layer, cooling liquid with lower temperature can be contacted with the pump body, the cooling liquid with higher temperature is far away from the pump body, the temperature of the joint of the cooling liquid and the pump body is reduced, and the cooling efficiency is improved; the hollow shell is divided into an inner layer and an outer layer, so that the liquidity of the cooling liquid can be enhanced, and the phenomenon that local temperature is too high due to dead angles is avoided.

2. The guide plate and the swash plate can form the sedimentation zone bottom the inlayer, the coolant liquid flows down along the guide plate, then flow upward along the passageway that overflows between swash plate base and the baffle, after solid impurity in the coolant liquid strikes the swash plate, deposit in the sedimentation zone under the inertia effect, the swash plate has better separating effect to solid impurity, for the difficult jam of filter screen, regularly open the sealed lid on the inlayer bottom slag notch and can clear up solid impurity, convenient to use.

3. The water holes are formed in the upper portion of the inclined plate, water flows pass through the flow passage and then enter the outer layer from the flow holes along the horizontal direction, and therefore the water flows below the inclined plate are stable, and deposition of solid impurities in a deposition area is facilitated.

4. The heat conducting fins are filled between the bottom surface of the hollow shell and the pump body, and the heat conducting fins have high heat transfer efficiency and are beneficial to the transfer of heat in the pump body.

5. The cooling liquid storage tank is externally fixed with annular radiating fins, and the heated cooling liquid can be quickly cooled in the cooling liquid storage tank and then circularly cools the pump body.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present embodiment.

Fig. 2 is a schematic cross-sectional view of a hollow housing.

In the figure, 1, a pump body; 2. a cooling assembly; 21. a coolant storage tank; 22. a hollow housing; 221. a partition plate; 222. water passing holes; 223. a baffle; 224. a sloping plate; 225. a slag outlet; 226. a sealing cover; 3. a water inlet pipe; 4. a water outlet pipe; 5. a water pump; 6. a support pillar; 7. a bolt; 8. a heat dissipating fin; 9. a heat conducting blade.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

The utility model provides a vacuum pump cooling device, as shown in figure 1, including the pump body 1, the pump body 1 can be dismantled outward and be connected with cooling module 2, cooling module 2 is including parcel cavity casing 22 and coolant liquid storage tank 21 outside the pump body 1, be provided with inlet tube 3 and outlet pipe 4 on the cavity casing 22, inlet tube 3 passes through water pump 5 and links to each other with coolant liquid storage tank 21 bottom, outlet pipe 4 links to each other with coolant liquid storage tank 21 top, water pump 5 pours the coolant liquid into cavity casing 22, the coolant liquid in the cavity casing 22 absorbs the heat of the pump body 1, then the coolant liquid after the heating flows back to coolant liquid storage tank 21 internal cooling, can realize the cooling of the pump body 1.

The bottom of the hollow shell 22 is fixed with a plurality of support columns 6, the support columns 6 are connected with the bottom surface of the pump body 1 through bolts 7, and damping washers are arranged at the joints of the bolts 7 and the bottom surface of the pump body 1, so that noise generated when the hollow shell 22 vibrates along with the pump body 1 can be reduced.

Further optimally, a plurality of annular radiating fins 8 are uniformly fixed outside the cooling liquid storage tank 21, and the cooling liquid heated in the hollow shell 22 can be quickly radiated after flowing back to the cooling liquid storage tank 21.

Further optimally, the heat conducting blades 9 are filled between the bottom surface of the hollow shell 22 and the pump body 1, so that a gap between the hollow shell 22 and the pump body 1 can be avoided, and the heat conducting efficiency is enhanced.

As shown in fig. 2, the hollow shell 22 is n-shaped, a partition 221 is arranged in the hollow shell 22, the partition 221 and the bottom surface of the hollow shell 22 form an inner layer, the partition 221 and the top surface of the hollow shell 22 form an outer layer, the water inlet pipe 3 penetrates through the outer layer and is communicated with the center of the top of the inner layer, a plurality of water through holes 222 are formed in the bottom of the partition 221, a water outlet pipe 4 is arranged at the top of the outer layer, cooling liquid firstly enters the inner layer through the water inlet pipe 3 and then flows into the outer layer from the water through holes, the flow rate of the cooling liquid can be increased through the multilayer arrangement, the flow dead angle of the cooling liquid in the hollow shell 22 is reduced, and the cooling efficiency is improved; and the inlet water directly enters the inner layer, so that the temperature of the inner layer is lower, and the cooling efficiency is further improved.

Further optimize, the both ends of the vertical direction of inlayer are provided with guide plate 223, guide plate 223 upper end links to each other with baffle 221 bottom surface, both sides limit links to each other with cavity casing 22 inner wall, guide plate 223 bottom and inlayer bottom surface are 4 ~ 6cm apart from, guide plate 223 bottom is provided with swash plate 224, swash plate 224 is to the slope of baffle 221 direction, it overflows the passageway to form between swash plate 224 bottom surface and the baffle 221, swash plate 224 below forms the settling zone, it is located swash plate 224 top to cross water hole 222, the inlayer bottom is provided with slag notch 225, threaded connection has sealed lid 226 on the slag notch 225. The guide plate 223 and the swash plate 224 can form the sedimentation zone in the inlayer bottom, the coolant liquid flows down along guide plate 223, then flow upward along the passageway that overflows between swash plate 224 base and the baffle 221, solid impurity among the coolant liquid strikes behind the swash plate 224, deposit under the inertia effect in the sedimentation zone, the swash plate 224 has better separation effect to solid impurity, for the difficult jam of filter screen, regularly open sealed lid 226 on inlayer bottom slag notch 225 and can clear up solid impurity, high durability and convenient use.

The working principle of the cooling device of the vacuum pump is as follows: when the vacuum pump operates, under the action of the water pump 5, the cooling liquid circulates in the cooling liquid storage tank 21 and the hollow shell 22 in a reciprocating mode, the volume of the cooling liquid storage tank 21 is large, the retention time of the cooling liquid is long, the cooling liquid can be cooled in the cooling liquid storage tank 21 after taking away heat on the vacuum pump, and then the cooling liquid enters the hollow shell 22 to absorb the heat; the hollow shell 22 is divided into an inner side and an outer side, water flow firstly enters the inner layer from the water inlet pipe 3, then the water flow is divided into a left water flow and a right water flow which flow downwards along the partition board 221, solid impurities are deposited in a deposition area below the inclined plate 224 under the obstruction of the inclined plate 224, cooling liquid enters the outer layer along the water passing holes 222, and then the cooling liquid flows back to the cooling liquid storage tank 21 from the water outlet pipe 4, and the cooling of the vacuum pump is completed.

Claims

1. A vacuum pump cooling device is characterized in that: comprises a pump body (1), the pump body (1) can be dismantled outward and be connected with cooling module (2), cooling module (2) is including wrapping up cavity casing (22) and coolant liquid storage tank (21) outside the pump body (1), cavity casing (22) are the n type, be provided with baffle (221) in cavity casing (22), baffle (221) constitute the inlayer with the bottom surface of cavity casing (22), baffle (221) constitute the skin with cavity casing (22) top surface, are provided with inlet tube (3) and outlet pipe (4) on cavity casing (22), inlet tube (3) pass skin and inlayer top center department and are linked together, baffle (221) bottom sets up a plurality of water holes (222) of crossing, the skin top is provided with outlet pipe (4), inlet tube (3) link to each other bottom coolant liquid storage tank (21) through water pump (5), and the water outlet pipe (4) is connected with the top of the cooling liquid storage tank (21).

2. A vacuum pump cooling arrangement as claimed in claim 1, wherein: the two ends of the inner layer in the vertical direction are provided with guide plates (223), the upper ends of the guide plates (223) are connected with the bottom surface of the partition plate (221), two side edges of the guide plates are connected with the inner wall of the hollow shell (22), and the bottom ends of the guide plates (223) are 4-6 cm away from the bottom surface of the inner layer.

3. A vacuum pump cooling arrangement as claimed in claim 2, wherein: the utility model discloses a slag tap, including baffle (223), swash plate (224) and baffle (221), form between swash plate (224) base and the baffle (221) and overflow the passageway, swash plate (224) below forms the settling zone, the inlayer bottom is provided with slag notch (225), threaded connection has sealed lid (226) on slag notch (225).

4. A vacuum pump cooling arrangement as claimed in claim 3, wherein: the water through hole (222) is positioned above the inclined plate (224).

5. A vacuum pump cooling arrangement as claimed in claim 1, wherein: the bottom of the hollow shell (22) is fixed with a plurality of supporting columns (6), the supporting columns (6) are connected with the bottom surface of the pump body (1) through bolts (7), and damping washers are arranged at the joint of the bolts (7) and the bottom surface of the pump body (1).

6. A vacuum pump cooling arrangement as claimed in claim 1, wherein: and a heat conducting sheet is filled between the bottom surface of the hollow shell (22) and the pump body (1).

7. A vacuum pump cooling arrangement as claimed in claim 1, wherein: and a plurality of annular radiating fins (8) are uniformly fixed outside the cooling liquid storage tank (21).