CN201203605Y - Sludge specific resistance measuring device - Google Patents

Abstract

The utility model relates to a sludge specific resistance measuring device. It is composed of metering tube, Buchner funnel, vacuum gauge, suction filter cartridge, air-proof valve, vacuum pump, fixed frame and filter paper placer. Buchner funnel is composed of funnel, suction tee, anti-drip pipe and fixed bracket. Above the bracket, and its bottom extends into the fixed bracket, the bottom outlet of the funnel is connected to the anti-drip pipe, and the side of the fixed bracket is provided with a suction tee; the metering tube is fixed on the side of the fixed bracket, and the fixed bracket of the Buchner funnel is set on the metering tube On the top, the suction filter cartridge is fixed above the bottom plate. The top of the suction filter cartridge is equipped with a vacuum gauge and a regulating valve, and the bottom is equipped with a vent valve. The suction tee of the Buchner funnel is connected to the PVC pipe through the PVC pipe connection device, and the PVC pipe passes through the PVC pipe The coupling device is connected to the top of the suction filter cylinder; the suction filter cylinder is connected to the vacuum pump through a PVC pipe; the filter paper placer is located in the funnel of the Buchner funnel. The utility model has the advantages of compact structure, high measuring precision, and convenient disassembly, use and transportation.

Description

Sludge specific resistance measuring device

technical field

The utility model relates to a sludge specific resistance measuring device.

Background technique

At present, the sludge specific resistance measuring devices being used by various colleges and universities and scientific research units are temporarily assembled from glassware, porcelain, pipes, vacuum pumps, iron plate fixing frames and other components, which are troublesome to disassemble and easily damaged, and the measurement accuracy is not good High, which brings a lot of inconvenience to the measurement operation, and also causes some errors to the experimental results.

Contents of the invention

The purpose of the utility model is to provide a sludge specific resistance measuring device which is small in size, easy to use, will not break, and has high measuring precision and accurate reading.

The sludge specific resistance measuring device proposed by the utility model is composed of a metering tube 1, a Buchner funnel 2, a PVC tube 3, a vacuum gauge 4, a PVC tube connection device 5, a regulating valve 6, a suction filter cartridge 7, an air-proof valve 8, and a vacuum pump 9. It consists of a base plate 10, a fixing frame 11 and a filter paper placer 12, the structure of which is shown in Figure 1. Wherein, Buchner funnel 2 is made up of funnel 13, air extraction tee 14, anti-drip pipe 15 and fixed support 16, and funnel 13 is positioned at the top of fixed support 16, and its bottom stretches in the fixed support 16, and the outlet of funnel 13 bottoms is connected to prevent The dripping pipe 15 and the side of the fixed bracket 16 are provided with a suction tee 14; the fixed bracket 11 is located above the bottom plate 10, the metering tube 1 is fixed on the side of the fixed bracket 11 by bolts, and the fixed bracket 16 of the Buchner funnel 2 is set on the metering tube 1, the suction filter cartridge 7 is fixed above the bottom plate 10, the top of the suction filter cartridge 7 is equipped with a vacuum gauge 4 and a regulating valve 6, and the bottom is provided with a vent valve 8, and one side of the suction tee 16 of the Buchner funnel 2 passes through the PVC The pipe connection device 5 is connected to one end of the PVC pipe 3, and the other end of the PVC pipe 3 is connected to the top of the suction filter cartridge 7 through the PVC pipe connection device 5; the suction filter cartridge 7 is connected to the vacuum pump 9 through the PVC pipe; Inside the funnel 13.

The working process of the present utility model is as follows:

Fix the metering tube 1 on the fixed frame 11, set the Buchner funnel 2 on the metering tube 1, place the filter paper on the bottom of the Buchner funnel 2 with the filter paper placer 12, moisten the filter paper with water to make it close to the Buchner funnel 2 The bottom and the peripheral wall of the bottom and the surrounding wall, pour out the water in the metering tube 1, insert the PVC pipe connection device 5 of the Buchner funnel 2 and the suction filter cartridge 7, the suction filter cartridge 7 and the vacuum pump 9 respectively with two PVC pipes 3. Pour the measured sludge sample into the filter paper in the Buchner funnel 2, start the vacuum pump 9, adjust the vacuum degree of the vacuum gauge 4 to the measured value with the regulating valve 6, and record the filtered water in the metering tube 1 every 10 to 15s. Volume until the volume of water in the metering tube 1 remains constant, open the regulating valve 6, close the vacuum pump 9, and stop the measurement.

The beneficial effect of the utility model is that it can avoid the cumbersome assembly of each component and the phenomenon of easy breakage when measuring the specific resistance of sludge.

Description of drawings

Fig. 1 is a structural illustration of the utility model.

FIG. 2 is a schematic diagram of the structure of Buchner's funnel 2 .

Numbers in Figure 1: 1 is the metering tube, 2 is the Buchner funnel, 3 is the PVC pipe, 4 is the vacuum gauge, 5 is the PVC pipe connection device, 6 is the regulating valve, 7 is the suction filter cartridge, 8 is the vent valve, 9 Be a vacuum pump, 10 is a base plate, 11 is a fixed frame, 12 is a filter paper placer, 13 is a funnel, 14 is an air extraction tee, 15 is an anti-drip pipe, and 16 is a fixed support.

Detailed ways

Further illustrate the utility model below by embodiment in conjunction with accompanying drawing.

Embodiment 1: In Fig. 1, the metering tube 1, the Buchner funnel 2, the suction filter cartridge 7, the base plate 10, the fixing frame 11, and the filter paper placer 12 are all made of plexiglass. The fixed frame 11, the suction filter cartridge 7 and the vacuum pump 9 are all fixed above the bottom plate 10, the metering tube 1 is fixed on one side of the fixed frame 11 with movable bolts, the Buchner funnel 2 is set on the metering tube 1, and the top of the suction filter cartridge 7 A vacuum gauge 4 and a regulating valve 6 are installed on the cover, a PVC pipe connector 5 is installed on the upper side of the suction filter cylinder 7, a vent valve 8 is installed at the bottom of the suction filter cylinder 7, and the Buchner funnel 2 and the suction filter cylinder 7 are connected. Connect with PVC pipe between suction filter cylinder 7 and vacuum pump 9 and connect with PVC pipe 3, filter paper placer 12 can be placed on filter paper at the bottom of Buchner funnel 2 conveniently.

Among Fig. 2, Buchner funnel 2 is made up of funnel 13, air extraction tee 14, anti-drip pipe 15 and fixed support 16, and funnel 13 is positioned at the top of fixed support 16, and its bottom stretches in the fixed support 16, and the outlet of funnel 13 bottoms Connect the anti-drip pipe 15, and one side of the fixed support is provided with an air extraction tee 14.

Claims (1)

1. A sludge specific resistance measuring device, consisting of a metering tube (1), a Buchner funnel (2), a PVC tube (3), a vacuum gauge (4), a PVC tube connection device (5), and a regulating valve (6) , suction filter cartridge (7), anti-air valve (8), vacuum pump (9), base plate (10), fixed frame (11) and filter paper placer (12), it is characterized in that Buchner funnel (2) consists of funnel ( 13), air extraction tee (14), anti-drip pipe (15) and fixed bracket (16), funnel (13) is positioned at the top of fixed bracket (16), and its bottom stretches in the fixed bracket (16), funnel (13) The bottom outlet is connected to the anti-drip pipe (15), and the side of the fixed bracket is provided with a suction tee (14); the fixed frame (11) is located above the bottom plate (10), and the metering tube (1) is fixed to the fixed frame by bolts On one side of (11), the fixed bracket (16) of the Buchner funnel (2) is set on the top of the metering tube (1), the suction filter cartridge (7) is fixed on the top of the bottom plate (10), and the top of the suction filter cartridge (7) is equipped with Vacuum gauge (4) and regulating valve (6), with a vent valve (8) at the bottom, one side of the exhaust tee (16) of the Buchner funnel (2) is connected to the PVC pipe ( 3) One end, the other end of the PVC pipe (3) is connected to the top of the suction filter cartridge (7) through the PVC pipe connection device (5); the suction filter cartridge (7) is connected to the vacuum pump (9) through the PVC pipe; the filter paper placer (12) Located in the funnel (13) of the Buchner funnel (2).

Images