JPH04102610U - mist separator - Google Patents

Abstract

(57) [Summary] [Purpose] Eliminate large equipment costs and operating power, and aim for overall compactness and low cost. [Structure] A duct 11 is arranged on the discharge side of the centrifugal fan 7 that sucks and compresses gas.
A partition plate 12 is installed continuously on the outer peripheral wall side of the enlarged part of the gas, and mist and oil droplets centrifuged from the gas are guided into the space surrounded by the partition plate 12 and the inner wall surface of the duct 11. It is discharged and collected to the outside from the discharge port 14 which is communicated with.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a mist separator that removes mist and oil droplets from gas. For example, it can be applied to boiler fans of motor products to reduce mist and oil droplets contained in the air. or a mist separator that can separate and remove solid particles from the air. do.

0002

[Conventional technology]

FIG. 2 is a system diagram of a conventionally used mist separator. Figure 2 Smell 1 is a duct, and arrow A indicates the direction of gas flow. 2 is this duct Fan 1 is installed in the middle of fan 2, and fan 3 is installed in the middle of the duct on the upstream side of fan 2. This is a mist separator installed.

0003 FIG. 3 is a sectional view showing the detailed configuration of the mist separator 3 shown in FIG. 2. As shown in FIG. In the diagram 4 indicates a partition plate, and 5 indicates a hopper. The partition plate 4 hangs down into the hopper 5. It is designed to change the direction of gas flow. The lower end of this hopper 5 has a discharge port. is formed, and the separated mist is discharged and collected from this discharge port.

0004 In the configurations shown in FIGS. 2 and 3 above, gas is pumped into the duct 1 by the rotation of the fan 2. It is sucked in and transported in the direction of arrow A. During the transport, the mist separator 3 is passed through. However, within this mist separator 3, the flow direction of the gas is changed. stop As the gas passes through this partition plate 4 while changing its direction, mist in the gas is created. Oil droplets are separated from the gas by centrifugal force, fall downward, and are received by hopper 5. It is stopped and discharged out of the system through the discharge port.

[0005] Figure 4 shows that the mist in the gas is preheated and vaporized into the gas. The gas system is equipped with a preheater 6. This preheater 6. Steam is used as a heat source, and as it passes through this gas, heat is exchanged. The temperature is raised and vaporized.

[0006]

[Problem that the idea aims to solve]

By the way, the mist in the gas can be removed using the conventional mist separator or preheater method. In the device for removing mist, the device in Figure 2 has a relatively large mist separator. Since this is necessary, equipment costs increase and a large installation space is required. Moreover, draft The increase in tros requires a larger fan head, which requires increased equipment costs and power. Become.

[0007] In addition, in the device shown in Figure 4, the fan air volume and wind pressure increase due to the rise in gas temperature. Therefore, as in the case of FIG. 2, it is necessary to increase equipment costs and operating power.

[0008] This invention was devised to solve the problems of the above-mentioned conventional technology, and it requires a large-scale configuration. The purpose is to provide a mist separator that does not require a preheater method. do.

[0009]

[Means to solve the problem]

In order to solve the above problems, according to the present invention, a centrifugal fan that suctions and pressurizes gas A partition plate is installed at the discharge part of this centrifugal fan, and a partition plate is installed on the outer peripheral wall of the enlarged part of the centrifugal fan. A mist separator comprising a duct provided with a duct is provided.

0010

[Effect]

The gas sucked into the centrifugal fan is subjected to centrifugal force and turns into mist or mist, which has a mass larger than the gas. or oil droplets are separated from the gas by being guided between the partition plate and the duct wall. Ru. This separated mist and oil droplets flow along the duct wall and are collected at the outlet. It is discharged and collected from

[0011]

【Example】

The present invention will be explained below with reference to the drawings. Figure 1 shows a mist cell showing an embodiment of the present invention. FIG. 3 is a cross-sectional configuration diagram of a pallet.

0012 In this figure, 7 is a housing 10 having a gas suction port 8 and a gas discharge port 9. It is a centrifugal fan disposed inside, and one end of a duct 11 is connected to the discharge port 9. There is. The opening surface of this duct 11 gradually increases in line with the enlarged part on the downstream side of the centrifugal fan 7. It is formed so that the product is large. 12 is on the outer circumferential side of the enlarged part of the centrifugal fan 7. This is a partition plate that is continuously provided below the duct 11. This partition plate 12 is For example, if the cross section of the duct 11 is rectangular, it is a rectangular plate, and if it is annular, a rectangular plate is used. It is bent into an arc shape along the curved surface of a circle. 13 is multiple support, It is arranged at a predetermined interval between the duct 11 and the partition plate 12, and the partition plate 12 is arranged between the duct 11 and the partition plate 12. 1 and fixed to the duct 11 to form a space parallel to the gas flow. . Reference numeral 14 indicates an exhaust for collecting mist, which is connected to the space and is provided in the middle of the duct 11. It is the mouth.

[0013] In the above configuration, when the centrifugal fan 7 rotates in the direction of arrow B, mist and oil droplets are generated. Gas containing be pumped. At this time, the gas is subjected to centrifugal force, and the high-mass mist and oil droplets are The particles are blown to the outer circumferential side of the enlarged portion of the tube 7 and attached to the inner wall of the housing 10. These mi The gas and oil droplets flow along the inner wall of the housing 10 with the help of the gas flow, and then flow into the duct. 11 and the partition plate 12, and is discharged to the outside through the outlet 14 and circulated. will be collected.

[0014]

[Effect of the idea]

As described above, according to the present invention, the lower part of the duct provided on the downstream side of the centrifugal fan By placing a partition plate with a predetermined height along the gas flow, mist It enables centrifugal separation of water and oil droplets, eliminating the need for conventional large-scale mist separators and preheaters. There is no increase in equipment costs or operating power. Moreover, this device itself is equipped with a fan. Because of this, there is no need for a fan for gas pressure feeding, making the overall system more compact and easy to use. A separator can be realized.

[0015] Furthermore, according to the present invention, since a centrifugal separation method is used, mist in the gas and It is possible to collect not only oil droplets but also solid particles.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional configuration diagram showing one embodiment of a mist separator of the present invention.

FIG. 2 is a system diagram showing an example of a conventional mist separator.

FIG. 3 is a sectional view showing the detailed configuration of the mist separator shown in FIG. 2;

FIG. 4 is a configuration diagram showing a preheater method, which is another conventional example of mist removal.

[Explanation of symbols]

7 Centrifugal fan 8 Suction port 9 Discharge port 10 Housing 11 Duct 12 Partition plate 13 Support 14 Outlet

Claims (1)

[Scope of utility model registration request] 1. A mist separator comprising a centrifugal fan that suctions and pressurizes gas, and a duct installed at the discharge section of the centrifugal fan and provided with a partition plate on the outer peripheral wall of the enlarged section of the centrifugal fan.