Cooling auxiliary system of water ring vacuum pump

Abstract

The utility model relates to a water ring vacuum pump cooling auxiliary system which comprises a dryer, a vacuum pump and a cooling tower, a suction opening of the vacuum pump is communicated with an air outlet of the dryer, the water ring vacuum pump cooling auxiliary system further comprises a filter, the filter is provided with a first filter bin and a second filter bin, and the first filter bin and the second filter bin are respectively provided with a water inlet and a water outlet. A first filter element and a second filter element are respectively arranged in the first filter bin and the second filter bin, a water outlet of the vacuum pump is communicated with a water inlet of the first filter bin, a water outlet of the first filter bin is communicated with a water inlet of the cooling tower, a water outlet of the cooling tower is communicated with a water inlet of the second filter bin, and a water outlet of the second filter bin is communicated with a water inlet of the vacuum pump. Cooling water discharged by the vacuum pump is filtered twice through the filter, impurities in the cooling water circulation process are greatly reduced, cooling efficiency is improved through cooling of the cooling tower, scale is greatly reduced, and therefore the service life of the vacuum pump is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of powder metallurgy processing, in particular to a cooling auxiliary system for a water ring vacuum pump. Background Art

[0002] In the powder metallurgy industry, the raw materials and mixed materials produced contain a certain amount of moisture. Drying these raw materials to make the moisture content meet the production requirements is an important step in ensuring product quality and system operation rate. Currently, the commonly used drying equipment is mainly horizontal double-cone rotary dryer. When the dryer is operating, an external water ring vacuum pump is required to evacuate air to reduce the air pressure in the dryer.

[0003] The vacuum pump needs to extract high-temperature air for a long time during the processing process, which easily increases the temperature of the circulating cooling water. However, when the temperature of the circulating cooling water is too high, it will cause scale to form in the pump chamber of the vacuum pump, shortening the service life of the vacuum pump. The existing method of reducing the circulating cooling water is to reduce the temperature of the cooling water by heat exchange through a heat exchanger, and the cooling efficiency is low. In addition, due to the production environment, the cooling water in the powder workshop is usually mixed with impurities such as powder and sediment, and the cooling water quality is poor, which further increases the conditions for scale formation. Utility Model Content

[0004] The utility model aims at the deficiencies of the prior art and provides a device for efficiently assisting the cooling of a vacuum pump. The device can filter impurities in cooling water while cooling the water, thereby greatly reducing the formation of scale and prolonging the service life of the vacuum pump.

[0005] The utility model is realized by the following technical scheme: a cooling auxiliary system for a water ring vacuum pump, comprising a dryer, a vacuum pump and a cooling tower, wherein the vacuum pump exhaust port is connected with the dryer outlet port, and further comprising a filter, wherein the filter is provided with a first filter bin and a second filter bin, wherein the first filter bin and the second filter bin are both provided with a water inlet and a water outlet, and wherein the first filter bin and the second filter bin are respectively provided with a first filter element and a second filter element;

[0006] The water outlet of the vacuum pump is connected to the water inlet of the first filter bin, the water outlet of the first filter bin is connected to the water inlet of the cooling tower, the water outlet of the cooling tower is connected to the water inlet of the second filter bin, and the water outlet of the second filter bin is connected to the water inlet of the vacuum pump.

[0007] In this solution, the hot water discharged from the vacuum pump is filtered once in the first filter chamber of the filter and then discharged into the cooling tower for cooling. The cold water in the cooling tower is filtered twice in the second filter chamber of the filter and then drawn back into the vacuum pump to cool the vacuum pump. The cooling tower improves the cooling efficiency and greatly reduces the generation of scale. The water outlet and water inlet of the vacuum pump are filtered once through the filter, which greatly reduces the impurities in the cooling water circulation process, further reduces the generation of scale, and thus increases the service life of the vacuum pump.

[0008] As an optimization, the bottoms of the first filter bin and the second filter bin are both provided with a sewage outlet, and a cover is installed on the sewage outlet. This optimization solution can discharge the filtered impurities through the sewage outlet.

[0009] As an optimization, the first filter element is a glass fiber filter element. The glass fiber filter element of this optimization solution has a high temperature resistance effect and can effectively perform preliminary filtering of impurities in hot water.

[0010] As an optimization, the second filter element is an activated carbon filter element. In this optimization scheme, the activated carbon can effectively absorb the powder or sediment particles in the cooling water and perform secondary filtration on the cooling water.

[0011] As an optimization, a water pump is further included, the cooling tower water outlet is connected to the water pump water inlet, and the water pump water outlet is connected to the second filter bin water inlet. This optimization solution facilitates the cooling water in the cooling tower to be sent to the second filter bin.

[0012] As an optimization, the first filter chamber and the second filter chamber are both provided with a liquid level gauge. This optimization solution facilitates personnel to determine the liquid level in the filter.

[0013] As an optimization, the filter includes a cylinder and a cylinder cover, the first filter chamber and the second filter chamber are cylindrical and arranged side by side in the cylinder, and the first filter chamber water inlet and the second filter chamber water inlet are both arranged on the cylinder cover. This optimization solution facilitates the disassembly and replacement of the filter element.

[0014] The beneficial effects of the utility model are as follows: the hot water discharged from the vacuum pump is filtered once in the first filter bin of the filter and then discharged into the cooling tower for cooling; the cold water in the cooling tower is filtered twice in the second filter bin of the filter and then drawn back into the vacuum pump, thereby cooling the vacuum pump; the cooling tower improves the cooling efficiency and greatly reduces the generation of scale. The water outlet and water inlet of the vacuum pump are filtered once by the filter, which greatly reduces the impurities in the cooling water circulation process, further reduces the generation of scale, and thus improves the service life of the vacuum pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 is a cross-sectional view of the filter;

[0017] Figure 3 is a three-dimensional diagram of the filter;

[0018] Figure 4 It is a schematic diagram of the structure of the first filter bin and the second filter bin;

[0019] As shown in the figure:

[0020] 1. Dryer, 2. Vacuum pump, 3. Filter, 31. Cylinder, 32. Cylinder cover, 33. Second filter bin, 34. First filter bin, 35. Second filter element, 36. First filter element, 37. Drain port, 38. Cover, 4. Cooling tower, 5. Water pump, 6. Liquid level gauge, 7. First connecting pipe, 8. Second connecting pipe, 9. Third connecting pipe, 10. Fourth connecting pipe, 11. Fifth connecting pipe. DETAILED DESCRIPTION

[0021] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0022] like Figures 1 to 4 As shown, a water ring vacuum pump cooling auxiliary system includes a dryer 1, a vacuum pump 2, a filter 3, a cooling tower 4 and a water pump 5, wherein the air outlet of the vacuum pump 2 is connected to the air outlet of the dryer 1.

[0023] like Figure 2 As shown, the filter 3 is provided with a first filter chamber 34 and a second filter chamber 33. The first filter chamber 34 and the second filter chamber 33 are both provided with a water inlet and a water outlet, and the first filter chamber 34 and the second filter chamber 33 are respectively provided with a first filter element 36 and a second filter element 35.

[0024] like Figures 2~4 As shown, specifically, the filter 3 includes a barrel 31 and a barrel cover 32 detachably mounted on the barrel 31, and the first filter bin 34 and the second filter bin 33 are cylindrical and arranged side by side in the barrel 31. The bottoms of the first filter bin 34 and the second filter bin 33 are both provided with a sewage outlet 37, and a sealing cover 38 is detachably mounted on the sewage outlet 37. The water inlet of the first filter bin 34 and the water inlet of the second filter bin 33 are both arranged on the barrel cover 32.

[0025] like Figure 2 As shown, the first filter element 34 and the second filter element 33 both include a cylindrical core body and a support seat, both ends of the core body are fixedly connected with an annular support seat, the outer diameter of the support seat is adapted to the inner diameter of the filter bin, and the first filter element 36 and the second filter element 35 are respectively fixed in the first filter bin 34 and the second filter bin 33 through the support seat. In this embodiment, the core body of the first filter element 36 is made of glass fiber material, which has the effect of high temperature resistance. The core body of the second filter element 35 is made of activated carbon material.

[0026] like Figure 2As shown, the outer diameter of the support seat is larger than the outer diameter of the core, so that a clean water cavity is formed between the core and the inner wall of the filter bin. In this embodiment, the water outlet of the first filter bin 34 is located in the clean water cavity formed by the first filter element 36 and the inner wall of the first filter bin, and the water outlet of the second filter bin 33 is located in the clean water cavity formed by the second filter element 35 and the inner wall of the second filter bin. After the cooling water enters the core, the impurities remain inside the core and are discharged through the drain port, and the clean water outside the core is discharged through the water outlet.

[0027] like Figure 1 As shown, in this embodiment, both the first filter bin 34 and the second filter bin 33 are provided with a liquid level gauge 6. Two liquid level gauges 6 are installed on the outer wall of the cylinder 31, one of which is connected to the first filter bin 34, and the other is connected to the second filter bin 33.

[0028] The water outlet of the vacuum pump 2 is communicated with the water inlet of the first filter bin 34, the water outlet of the first filter bin 34 is communicated with the water inlet of the cooling tower 4, the water outlet of the cooling tower 4 is communicated with the water inlet of the second filter bin 33, and the water outlet of the second filter bin 33 is communicated with the water inlet of the vacuum pump 2. Preferably, in this embodiment, the water outlet of the cooling tower 4 is communicated with the water inlet of the water pump 5, and the water outlet of the water pump 5 is communicated with the water inlet of the second filter bin 33.

[0029] like Figure 1 As shown, specifically, the water outlet of the vacuum pump 2 is connected to the water inlet of the first filter chamber 34 through the first connecting pipe 7, the water outlet of the first filter chamber 34 is connected to the water inlet of the cooling tower 4 through the second connecting pipe 8, the water outlet of the cooling tower 4 is connected to the water inlet of the water pump 5 through the third connecting pipe 9, the water outlet of the water pump 5 is connected to the water inlet of the second filter chamber 33 through the fourth connecting pipe 10, and the water outlet of the second filter chamber 33 is connected to the water inlet of the vacuum pump 2 through the fifth connecting pipe 11.

[0030] In this embodiment, control valves are installed on the water inlet and the water outlet of the first filter bin 34 and the second filter bin 33.

[0031] Working principle: The vacuum pump 2 discharges hot water into the first filter bin 34, which is filtered once by the first filter element 36 and then discharged into the cooling tower 4 for cooling. The cooled cooling water is discharged into the second filter bin 33 through the water pump 5, filtered twice by the second filter element 35 and then pumped away by the vacuum pump 2, thus realizing circulating cooling of the vacuum pump and greatly reducing the generation of scale.

[0032] The impurities filtered by the first filter element 36 and the second filter element 35 can be discharged from the sewage outlet 37 by regularly opening the cover 38 at the bottom of the filter, which is convenient to use.

[0033] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A water ring vacuum pump cooling auxiliary system, comprising a dryer (1), a vacuum pump (2) and a cooling tower (4), wherein the air outlet of the vacuum pump (2) is connected to the air outlet of the dryer (1), and characterized in that: It also comprises a filter (3), wherein the filter (3) is provided with a first filter chamber (34) and a second filter chamber (33), the first filter chamber and the second filter chamber are both provided with a water inlet and a water outlet, and the first filter chamber (34) and the second filter chamber (33) are respectively provided with a first filter element (36) and a second filter element (35); The water outlet of the vacuum pump (2) is connected to the water inlet of the first filter bin (34), the water outlet of the first filter bin (34) is connected to the water inlet of the cooling tower (4), the water outlet of the cooling tower (4) is connected to the water inlet of the second filter bin (33), and the water outlet of the second filter bin (33) is connected to the water inlet of the vacuum pump (2).

2. A water ring vacuum pump cooling auxiliary system according to claim 1, characterized in that: The bottoms of the first filter bin (34) and the second filter bin (33) are both provided with sewage outlets (37), and sealing covers (38) are installed on the sewage outlets.

3. The cooling auxiliary system of a water ring vacuum pump according to claim 1, characterized in that: The first filter element (36) is a glass fiber filter element.

4. The cooling auxiliary system for a water ring vacuum pump according to claim 1, characterized in that: The second filter element (35) is an activated carbon filter element.

5. The cooling auxiliary system for a water ring vacuum pump according to claim 1, characterized in that: It also includes a water pump (5), the water outlet of the cooling tower (4) is in communication with the water inlet of the water pump (5), and the water outlet of the water pump (5) is in communication with the water inlet of the second filter bin (33).

6. The cooling auxiliary system for a water ring vacuum pump according to claim 1, characterized in that: The first filter bin (34) and the second filter bin (33) are both provided with a liquid level meter (6).

7. A water ring vacuum pump cooling auxiliary system according to any one of claims 1 to 6, characterized in that: The filter (3) comprises a cylinder (31) and a cylinder cover (32); the first filter chamber (34) and the second filter chamber (33) are cylindrical and arranged side by side in the cylinder (31); and the first filter chamber water inlet and the second filter chamber water inlet are both arranged on the cylinder cover (32).

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