CN201427119Y - An online descaling device for the surface of a glass electrode - Google Patents

Abstract

The utility model relates to an online descaling device for the surface of a glass electrode. Existing devices cannot realize continuous production testing. In the utility model, the vertical penetration detection pipeline of the mixing tube is arranged, the bottom of the mixing tube communicates with the cleaning liquid flow pipe, and the water pump is arranged on the cleaning liquid flow pipe. The nozzle connected to the head of the mixing tube corresponds to the position of the glass electrode. One end of the jet tube communicates with the mixing tube, the other end communicates with one end of the upper part of the non-reverse chamber, and the other end of the upper part of the non-reverse chamber communicates with one end of the fine sand circulation pipe. The other end communicates with the bottom of the funnel-shaped sand storage tank. The device of the utility model has a simple structure and is not easy to be damaged, and can effectively remove seriously bonded dirt without causing damage to electrodes, and works continuously on-line at the same time.

Description

An online descaling device for the surface of a glass electrode

technical field

The utility model belongs to the technical field of detection, in particular to an automatic sandblasting on-line descaling device for dirt on the surface of a glass electrode.

Background technique

In metallurgy, chemical industry, biomedicine, environmental protection and other fields, a large number of glass electrodes are used to detect their biochemical parameters, such as pH, sodium ion concentration, biological enzymes and so on. The detection principle of the glass electrode is to detect through the potential formed by the penetration of the ions in the liquid to be detected to the glass at the end of the electrode.

In the continuous detection of the production process, the detected liquid will gradually accumulate on the surface of the glass electrode to form a layer of dirt. This layer of dirt blocks the penetration of ions into the glass electrode, so that the electrode can no longer detect properly. The traditional solution is to manually disassemble the electrodes and remove the dirt with a brush. But this method is not only cumbersome, but also unable to achieve continuous production testing. Therefore, it has become an important task for continuous production process detection to develop a device that can effectively remove dirt on the electrode surface while the electrode is working without removing the electrode from the detection device.

Contents of the invention

The purpose of the utility model is to provide an automatic, on-line glass electrode on-line descaling device with good descaling effect, simple structure and convenient use for the deficiencies of the prior art.

The utility model comprises a water pump, a nozzle, a mixing pipe, a cleaning liquid circulation pipe, a jet pipe, a non-reverse chamber, a fine sand circulation pipe and a sand storage tank. The mixing tube vertically penetrates the side wall of the detection pipeline and is sealed and connected with the detection pipeline. The bottom of the mixing tube communicates with the cleaning liquid flow pipe, and a water pump is arranged on the cleaning liquid flow pipe; the head of the mixing pipe shrinks into a frustum-shaped, cylindrical The nozzle is fixedly arranged on the frustum-shaped head; the nozzle is arranged in the inner cavity of the detection pipeline, and corresponds to the position of the glass electrode; It is an inverted trapezoid; one end of the jet tube communicates with the mixing tube, the other end communicates with one end of the upper part of the non-reverse chamber, the other end of the upper part of the non-reverse chamber communicates with one end of the fine sand flow pipe, and a non-reverse device is installed in the non-reverse chamber ; The fine sand flow pipe is L-shaped, the other end of the fine sand flow pipe communicates with the bottom of the funnel-shaped sand storage tank, and fine sand is filled in the sand storage tank;

The non-return device includes a baffle and a stopper, the baffle is connected to the inner wall of the non-return chamber through a pin arranged on the top of the inner wall of the non-return chamber, the stopper is circular, and its diameter matches the diameter of the inner wall of the non-return chamber; the stopper It is fixedly installed at the bottom of the inner wall of the non-reverse cavity, and its position corresponds to the pin shaft; the baffle plate rotates around the pin shaft along the flow direction of the fine sand, and is limited by the stopper to prevent the fine sand from flowing backward.

The utility model has the advantages that: 1) the device uses fine sand to spray the surface of the glass electrode, which can effectively remove seriously bonded dirt without causing damage to the electrode. 2) The device adopts jet technology, and the fine sand is sucked out from the jet tube by the vacuum formed when the water flow passes through the jet tube, and sprayed onto the surface of the electrode together with the cleaning liquid. The structure is simple and not easy to damage. 3) The baffle plate of the non-reverse chamber can effectively block the backflow of sand, which is simple and practical. 4) It can realize the continuous working mode of descaling while the glass electrode is working.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

As shown in Figure 1, the online descaling device on the glass electrode surface includes a water pump 13, a nozzle 3, a mixing pipe 14, a cleaning liquid flow pipe 12, a jet pipe 11, a check chamber 9, a fine sand flow pipe 8, and a sand storage tank 7. The mixing tube vertically penetrates the side wall of the detection pipeline 2 and is sealedly connected with the detection pipeline 2. The bottom of the mixing tube 14 communicates with the cleaning liquid flow pipe 12, and the cleaning liquid flow pipe 12 is provided with a water pump 13; the head of the mixing pipe 14 shrinks In the shape of a frustum of a cone, the cylindrical nozzle 3 is fixed on the head of the frustum of the cone. The inner diameter of the nozzle 3 is 5mm and the height is 20mm; the nozzle 3 is set in the inner cavity of the detection pipeline 2 and corresponds to the position of the glass electrode 1. 3. The vertical distance from the bottom of the glass electrode 1 is 18 mm; the non-reverse cavity 9 is cylindrical, and the two end faces are sloped, and the longitudinal section of the non-reverse cavity 9 is an inverted trapezoid; one end of the jet tube 11 is connected to the mixing tube 14 connected, the other end communicates with one end of the upper part of the non-reverse chamber 9, the other end of the upper part of the non-reverse chamber 9 communicates with one end of the fine sand circulation pipe 8, and a non-reverse device is arranged in the non-reverse chamber 9; the fine sand circulation The pipe 8 is L-shaped, and the other end of the fine sand circulation pipe 8 communicates with the bottom of the funnel-shaped sand storage tank 7, and the fine sand 6 is filled in the sand storage tank 7.

The non-return device includes a baffle plate 5 and a stopper 10, the baffle plate 5 is connected with the inner wall of the non-return chamber 9 through the pin shaft 4 arranged on the top of the non-return chamber 9 inner wall, the stopper 10 is circular, and its diameter is the same as that of the non-return chamber. The diameter of the inner wall of the chamber 9 matches; the stopper 10 is fixed at the bottom of the inner wall of the non-reverse chamber 9, and its position corresponds to the pin shaft 4; the baffle plate 5 rotates around the pin shaft along the flow direction of the fine sand, and is limited by the stopper to prevent the reverse flow of the fine sand .

When the glass electrode needs to be descaled, when the water pump is turned on, the cleaning liquid is sprayed on the surface of the glass electrode through the nozzle under the pressure of the water pump, and the vacuum formed when the water flows through the jet tube sucks the fine sand from the jet tube and sprays it together The surface of the electrode plays a descaling role. When the water pump is turned off, the baffle will rotate counterclockwise under the pressure of the water, and block on the block to form a seal, preventing water and sand from flowing backward.

The sprayed fine sand is clean quartz sand, and the particle diameter is controlled between 0.1mm and 0.5mm. The water pump adopts a general centrifugal pump, with a flow rate of more than 2L/min and a lift of more than 5 meters. For example, a 14CQ-5 centrifugal pump can be used, with a diameter of 10mm, a head of 5 meters, a flow rate of 2L/min, a power of 0.12KW, a speed of 2800r/min, and a voltage of 380V.

Claims (1)

1. online desludging apparatus for glass electrode surfaces, comprise water pump, nozzle, mixing tube, wash liquid stream siphunculus, jet pipe, non-return chamber, fine sand runner pipe, sand tank, it is characterized in that: the sidewall of the vertical penetration-detection pipeline of mixing tube, and with detect pipeline and be tightly connected, the bottom of mixing tube is communicated with the wash liquid stream siphunculus, and the wash liquid stream siphunculus is provided with water pump; The mixing tube head is shrunk to truncated cone-shaped, and columnar nozzle is fixedly installed on the truncated cone-shaped head; Nozzle is arranged on the inner chamber that detects pipeline, and corresponding with the glass electrode position; Described non-return chamber is a cylindrical shape, and two end faces are the inclined-plane, and the longitudinal section in non-return chamber is inverted trapezoidal; One end of jet pipe is communicated with mixing tube, and the other end is communicated with an end on top, non-return chamber, and the other end on top, non-return chamber is communicated with an end of fine sand runner pipe, is provided with backstop in the non-return chamber; Described fine sand runner pipe is L shaped, and the other end of fine sand runner pipe is communicated with the bottom of funnel shaped sand tank, fills fine sand in the sand tank;

Described backstop comprises baffle plate and block, and baffle plate is connected with non-return cavity wall by the bearing pin that is arranged on non-return cavity wall top, and block is circular, diameter and non-return cavity wall diameter coupling; Block is fixedly installed on non-return cavity wall bottom, and the position is corresponding with bearing pin.

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