Conductivity measuring device

Abstract

The utility model belongs to the technical field of measuring devices, and particularly relates to a conductivity measuring device which comprises a U-shaped connecting pipeline, two ends of the connecting pipeline are fixedly connected with a conveying pipeline, the connecting pipeline is communicated with the conveying pipeline, two ends of the connecting pipeline are respectively provided with a first valve, and a second valve is arranged on the connecting pipeline. A conductivity probe is further installed on the connecting pipeline and located between the two first valves. When the conductivity probe needs to be cleaned or replaced, the two first valves are closed, conveying of liquid in the connecting pipeline is stopped, at the moment, the conductivity probe can be overhauled, the conductivity probe is cleaned or replaced under the condition that normal conveying of the liquid in the conveying pipeline is not affected, and the service life of the conductivity probe is prolonged. And the conductivity probe can be overhauled at the first time, so that the accuracy of measured data during production is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of measuring device, concretely is a kind of electric conductivity measuring device. BACKGROUND

[0002] Evaporation conductivity refers to the conductivity of distillation liquid in evaporation process. Excessive conductivity is usually due to excessive foam of concentrated liquid, which causes deterioration of vapor-liquid separation effect of separation column, and water droplets entrained by steam into condenser.

[0003] The on-site measurement method of conductivity usually installs conductivity probe on the conveying pipeline to measure the conductivity of liquid in the conveying pipeline. The surface of the conductivity probe will be attached with some impurities after long time use, thereby affecting the measurement accuracy, so the conductivity probe needs to be cleaned or replaced regularly. In daily maintenance work, only when production is stopped, that is, liquid is not conveyed in the conveying pipeline, the conductivity probe can be disassembled for cleaning and replacement, the conductivity probe cannot be repaired in the first time, and the accuracy of measurement data during production cannot be guaranteed. UTILITY MODEL CONTENTS

[0004] To solve the problems in the above background art, the utility model provides an electric conductivity measuring device. When the conductivity probe needs to be cleaned or replaced, two first valves are closed, the conveying of liquid in the connecting pipeline is stopped, the conductivity probe can be repaired at this time, the conductivity probe can be cleaned or replaced without affecting the normal conveying of liquid in the conveying pipeline, the conductivity probe can be repaired in the first time, and the accuracy of measurement data during production is guaranteed.

[0005] The utility model provides an electric conductivity measuring device, which comprises a U-shaped connecting pipeline, both ends of the connecting pipeline are fixedly connected with conveying pipelines, the connecting pipeline is communicated with the conveying pipelines, both ends of the connecting pipeline are provided with first valves, and a conductivity probe is further installed on the connecting pipeline.

[0006] Further, a pressure relief valve is installed on the connecting pipeline, and the pressure relief valve is also located between the two first valves.

[0007] Further, a second valve is installed on the conveying pipeline, and the second valve is located between the two ends of the connecting pipeline.

[0008] Further, a flow rate sensor is further installed on the connecting pipeline, and the flow rate sensor is also located between the two first valves.

[0009] Further, a filter screen is arranged in the connecting pipeline, and the filter screen is located in the upstream direction of the conductivity probe.

[0010] Further, the filter screen is detachably installed in the connecting pipe, the filter screen is fixedly installed on the dismounting plate, a dismounting groove is formed on the connecting pipe, the dismounting plate is inserted into the dismounting groove, and a fixing assembly for fixing the dismounting plate is arranged on the outer wall of the connecting pipe.

[0011] Further, the fixing assembly comprises two fixing plates, the fixing plates are fixedly connected to the outer wall of the connecting pipe, a locking rod is movably arranged between the two fixing plates, a locking hole is formed on the dismounting plate, one end of the locking rod is inserted into the locking hole, a pull ring is fixedly connected to the end of the locking rod away from the dismounting plate, a limiting plate is fixedly connected to the locking rod, the limiting plate is located between the two fixing plates, a spring is fixedly connected between the fixing plate close to the pull ring and the limiting plate, the locking rod is arranged in the spring, and the limiting plate abuts against the fixing plate close to the dismounting plate under the elastic action of the spring.

[0012] Further, a sealing gasket is arranged between the dismounting plate and the connecting pipe.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] (1) when the conductivity probe needs to be cleaned or replaced, the two first valves are closed, so that the delivery of the liquid in the connecting pipe is stopped, and the conductivity probe can be repaired at this time, so that the conductivity probe can be repaired in the first time without affecting the normal delivery of the liquid in the delivery pipe, and the accuracy of the measured data during production is ensured.

[0015] (2) the flow rate sensor is used for measuring the flow rate in the connecting pipe, the flow rate in the connecting pipe can be adjusted by controlling the opening degree of the first valve, the flow rate in the connecting pipe tends to be the most suitable flow rate for conductivity measurement, and therefore the value of the conductivity measurement is more stable.

[0016] (3) the filter screen will accumulate impurities after long-term use, which affects the flow of the liquid in the connecting pipe, so the filter screen needs to be cleaned regularly, the first valve needs to be closed and the pressure relief valve needs to be opened for pressure relief before the filter screen is cleaned, the pull ring is pulled downward, the locking rod is driven to move downward, the locking rod is separated from the locking hole, the dismounting plate can be taken out from the dismounting groove, and the filter screen can be cleaned, after the cleaning is completed, the dismounting plate is inserted into the dismounting groove, the locking rod is inserted into the locking hole again under the elastic action of the spring, the dismounting plate is fixed, and the cleaning of the filter screen is completed. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical schemes in the embodiments of the present application or in the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 It is a whole structure schematic view of a conductivity measuring device;

[0019] Figure 2 It is a structure schematic view of a fixing assembly;

[0020] Figure 3 It is a mounting structure schematic view of a filter screen;

[0021] The figure mark explanation: 1, conveying pipeline;2, connecting pipeline;3, first valve;4, conductivity probe;5, pressure relief valve;6, second valve;7, flow rate sensor;8, filter screen;9, dismounting plate;90, dismounting groove;10, fixing assembly;100, fixing plate;101, locking rod;102, pull ring;103, locking hole;104, limiting plate;105, spring. DETAILED DESCRIPTION

[0022] The technical schemes in the embodiments of the present application will be described clearly and completely in combination with the drawings in the present application, obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0023] The following will be combined with the drawings Figure 1 to the drawings Figure 3 and the specific embodiments will be discussed in detail.

[0024] Referring to Figures 1-3 The conductivity measuring device provided by the present application comprises a U-shaped connecting pipeline 2, both ends of the connecting pipeline 2 are fixedly connected with the conveying pipeline 1, and the connecting pipeline 2 is communicated with the conveying pipeline 1, both ends of the connecting pipeline 2 are provided with the first valve 3, and the conductivity probe 4 is further installed on the connecting pipeline 2, and the conductivity probe 4 is located between the two first valves 3.

[0025] When the conductivity probe 4 needs to be cleaned or replaced, the two first valves 3 are closed, so that the liquid in the connecting pipeline 2 is stopped from being transported, and the conductivity probe 4 can be repaired at this time, so that the conductivity probe 4 can be repaired in the first time without affecting the normal transportation of the liquid in the conveying pipeline 1, and the accuracy of the measurement data during production is ensured.

[0026] The connecting pipeline 2 is provided with a pressure relief valve 5, which is located between the two first valves 3. After the first valves 3 are closed and before the conductivity probe 4 is disassembled, the pressure relief valve 5 needs to be opened first to release the pressure in the connecting pipeline 2, so as to prevent the pressure in the connecting pipeline 2 from ejecting the conductivity probe 4 when the conductivity probe 4 is disassembled, thereby injuring the worker.

[0027] The conveying pipeline 1 is provided with a second valve 6, which is located between the two ends of the connecting pipeline 2. When the liquid pressure in the conveying pipeline 1 is not enough to make the liquid flow upward through the conductivity probe 4, the second valve 6 can be closed to force the liquid to be transported forward through the connecting pipeline 2, so that the liquid must pass through the conductivity probe 4, thereby ensuring the measurement of the conductivity of the liquid.

[0028] The connecting pipeline 2 is also provided with a flow rate sensor 7, which is located between the two first valves 3. The flow rate sensor 7 is used to measure the flow rate in the connecting pipeline 2, and the flow rate in the connecting pipeline 2 can be adjusted by controlling the opening of the first valve 3, so that the flow rate in the connecting pipeline 2 tends to be the most suitable for conductivity measurement, thereby making the value of the conductivity measurement more stable.

[0029] The connecting pipeline 2 is provided with a filter screen 8, which is located in the upstream direction of the conductivity probe 4, that is, when the liquid flows into the connecting pipeline 2, it needs to pass through the filter screen 8 first and then pass through the conductivity probe 4. The filter screen 8 can filter impurities in the liquid, reduce the adhesion of impurities on the conductivity probe 4, thereby improving the measurement accuracy of the conductivity probe 4 and prolonging the service life of the conductivity probe 4.

[0030] The filter screen 8 is detachably installed in the connecting pipeline 2. The filter screen 8 is fixedly installed on a disassembly plate 9. The connecting pipeline 2 is provided with a disassembly groove 90. The disassembly plate 9 is inserted into the disassembly groove 90. The outer wall of the connecting pipeline 2 is provided with a fixing assembly 10 for fixing the disassembly plate 9.

[0031] The fixed assembly 10 comprises two fixed plates 100 fixedly connected on the outer wall of the connecting pipe 2, a locking rod 101 movably arranged between the two fixed plates 100, a locking hole 103 formed on the dismounting plate 9, one end of the locking rod 101 inserted into the locking hole 103, a pull ring 102 fixedly connected on the end of the locking rod 101 away from the dismounting plate 9, a limiting plate 104 fixedly connected on the locking rod 101, the limiting plate 104 located between the two fixed plates 100, a spring 105 fixedly connected between the fixed plate 100 close to the pull ring 102 and the limiting plate 104, the locking rod 101 arranged in the spring 105, and the limiting plate 104 abutting against the fixed plate 100 close to the dismounting plate 9 under the elastic action of the spring 105.

[0032] The filter screen 8 will accumulate impurities after long time use, which will affect the flow of liquid in the connecting pipe 2, so the filter screen 8 needs to be cleaned regularly, and before cleaning the filter screen 8, the first valve 3 needs to be closed and the pressure relief valve 5 needs to be opened to release pressure, then the pull ring 102 is pulled downward, the pull ring 102 drives the locking rod 101 to move downward, when the locking rod 101 is separated from the locking hole 103, the dismounting plate 9 can be taken out from the dismounting groove 90, so that the filter screen 8 can be cleaned, after cleaning, the dismounting plate 9 is inserted into the dismounting groove 90, the locking rod 101 is inserted into the locking hole 103 again under the elastic action of the spring 105, so that the dismounting plate 9 is fixed, that is, the cleaning of the filter screen 8 is completed.

[0033] The sealing gasket is arranged between the dismounting plate 9 and the connecting pipe 2, which can seal the gap between the dismounting plate 9 and the connecting pipe 2, prevent the liquid in the connecting pipe 2 from leaking out, and improve the sealing performance.

[0034] The utility model is further described by means of specific embodiments above, but it should be understood that the specific description here should not be understood as the limitation on the essence and scope of the utility model, and various modifications made by the ordinary skilled in the art after reading the specification all belong to the scope protected by the utility model.

Claims

1. A conductivity measuring device, characterized in that, The device includes a U-shaped connecting pipe, both ends of which are fixedly connected to a conveying pipe and are in communication with the conveying pipe. A first valve is installed at both ends of the connecting pipe, and a conductivity probe is also installed on the connecting pipe, with the conductivity probe located between the two first valves.

2. The conductivity measuring device according to claim 1, characterized in that, A pressure relief valve is installed on the connecting pipe, and the pressure relief valve is also located between the two first valves.

3. The conductivity measuring device according to claim 1, characterized in that, A second valve is installed on the conveying pipeline, and the second valve is located between the two ends of the connecting pipeline.

4. The conductivity measuring device according to claim 1, characterized in that, A flow rate sensor is also installed on the connecting pipe, and the flow rate sensor is located between the two first valves.

5. The conductivity measuring device according to claim 1, characterized in that, A filter screen is installed inside the connecting pipe, and the filter screen is located upstream of the conductivity probe.

6. The conductivity measuring device according to claim 5, characterized in that, The filter screen is detachably installed inside the connecting pipe. The filter screen is fixedly installed on the disassembly plate. The connecting pipe has a disassembly groove. The disassembly plate is inserted into the disassembly groove. The outer wall of the connecting pipe is provided with a fixing component for fixing the disassembly plate.

7. The conductivity measuring device according to claim 6, characterized in that, The fixing assembly includes two fixing plates, which are fixedly connected to the outer wall of the connecting pipe. A locking rod is movably inserted between the two fixing plates. A locking hole is provided on the disassembly plate. One end of the locking rod is inserted into the locking hole. A pull ring is fixedly connected to the end of the locking rod away from the disassembly plate. A limiting plate is fixedly connected to the locking rod. The limiting plate is located between the two fixing plates. A spring is fixedly connected between the fixing plate near the pull ring and the limiting plate. The locking rod passes through the spring. The limiting plate abuts against the fixing plate near the disassembly plate under the elastic action of the spring.

8. The conductivity measuring device according to claim 6, characterized in that, A sealing gasket is provided between the disassembly plate and the connecting pipe.

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