Capillary viscometer cleaning device for petroleum product determination

Abstract

The utility model discloses a capillary viscometer cleaning device for measuring petroleum products, which comprises a cleaning liquid storage tank and a capillary viscometer, a liquid bath heating component I is arranged on the outer side of the cleaning liquid storage tank, a cleaning liquid discharge pipe is inserted above the cleaning liquid storage tank, and a liquid bath heating component II is arranged on the outer side of the capillary viscometer. The other end of the cleaning liquid discharging pipe is connected with the large-diameter end of a capillary viscometer in a sealed mode, the small-diameter end of the capillary viscometer is communicated with a waste liquid collecting tank through a waste liquid collecting pipe, an exhaust port of the waste liquid collecting tank is communicated with a condensation liquid inlet pipe of a condensation assembly, and a recycling tank is installed below the condensation assembly; the upper end of the condensation assembly is communicated with a vacuum adjusting pump through a vacuum connecting pipe, and a second liquid bath heating assembly is further arranged on the outer side of the waste liquid collecting tank. The device is simple in structure, organic solvent waste liquid for cleaning can be recycled, waste of resources can be reduced, meanwhile, pollution to the environment is reduced, and the device is suitable for popularization and application. The environment-friendly requirement can be better met.

Description

Technical Field

[0001] The utility model relates to the technical field of capillary viscometer cleaning, in particular to a capillary viscometer cleaning device for petroleum product determination. Background Art

[0002] Capillary viscometer is a common instrument used to measure the kinematic viscosity of Newtonian fluids such as oil products. It can be divided into Pinnacle viscometer and countercurrent viscometer according to different shapes and different measured liquids. The existing kinematic viscosity measurement methods include "GB / T265 Petroleum Product Kinematic Viscosity Measurement Method" and "GB / T11137 Dark Petroleum Product Kinematic Viscosity Measurement Method (Countercurrent Method)". Since the internal diameter of the capillary viscometer is small, about 2mm to 0.4mm, after the experiment is completed, it is usually manually injected into the capillary with a suitable solvent or cleaning agent through siphoning or other means to clean the oil stains, and then the solvent is discharged and the viscometer is dried. At present, the cleaning methods for capillary viscometers mainly include manual cleaning and instrument cleaning.

[0003] For example, the invention patent with authorization announcement number CN109304334B discloses a nozzle assembly for cleaning a capillary viscometer and a cleaning device for a capillary viscometer. The device arranges an alloy wire in the nozzle assembly. By utilizing the characteristics of the alloy wire having a certain hardness and being able to move relatively, the capillary below the spherical part in the thin end of the capillary viscometer can be cleared to solve the problem of easy clogging of the capillary.

[0004] However, when the device is used, the organic solvent waste liquid used in the cleaning process cannot be recycled, which not only wastes resources but also pollutes the environment and cannot meet the requirements of environmental protection. Utility Model Content

[0005] The utility model aims to provide a capillary viscometer cleaning device for petroleum product determination to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A capillary viscometer cleaning device for measuring petroleum products comprises: a cleaning liquid storage tank and a capillary viscometer, wherein a liquid bath heating component 1 is arranged on the outside of the cleaning liquid storage tank, a cleaning liquid discharge pipe is inserted on the top of the cleaning liquid storage tank, the other end of the cleaning liquid discharge pipe is sealed and connected to the large diameter end of the capillary viscometer, the small diameter end of the capillary viscometer is connected to the waste liquid collection tank through the waste liquid collection pipe, the exhaust port of the waste liquid collection tank is connected to the condensation inlet pipe of the condensation component, a recovery tank is installed below the condensation component, the upper end of the condensation component is connected to the vacuum regulating pump through the vacuum connecting pipe, and a liquid bath heating component 2 is also arranged on the outside of the waste liquid collection tank.

[0008] As a preferred solution, a vacuum regulating valve is also provided on the vacuum connecting pipe.

[0009] As a preferred solution, the condensation component includes an outer tube connected to the condensation liquid inlet pipe, the liquid outlet pipe at the lower end of the outer tube is inserted in the recovery tank, the exhaust pipe at the upper end of the outer tube is connected to the vacuum connecting pipe, and a serpentine tube is also installed in the outer tube. The liquid outlet of the serpentine tube is connected to the outer condensation water tank through a circulating discharge pipe, and the liquid inlet of the serpentine tube is connected to the outer condensation water tank through a circulating inlet pipe, and a condensation pump is also installed on the circulating inlet pipe.

[0010] As a preferred solution, an ultrasonic cleaning device is further provided outside the capillary viscometer, and the liquid level in the ultrasonic cleaning device is higher than the spherical portion of the capillary viscometer.

[0011] As a preferred solution, the exhaust port of the vacuum regulating pump is equipped with an exhaust pipe, and the exhaust pipe is inserted into the open bottle.

[0012] As a preferred solution, the cleaning liquid storage tank is also equipped with a recovery connecting pipe, a circulation pump is installed at the end of the recovery connecting pipe, a three-way valve is installed at the inlet end of the circulation pump, a recovery pipe is installed at the liquid inlet end of the three-way valve, a recovery cannula is installed at the end of the recovery pipe, and the recovery cannula is inserted in the recovery tank.

[0013] Compared with the prior art, the beneficial effect of the utility model is as follows: the waste liquid collection tank is heated by the second liquid bath heating component, so that the organic solvent in the waste liquid is vaporized and then enters the outer tube. At this time, the condensation pump works to transport the condensate in the condensation water tank to the serpentine tube through the circulating liquid inlet pipe to condense the organic solvent. The condensed organic solvent will fall back into the recovery tank, thereby completing the purification and recovery of the organic solution, which can effectively reduce the waste of resources and reduce the pollution to the environment. The utility model has a simple structure and can recycle the cleaned organic solvent waste liquid, which can reduce the waste of resources and reduce the pollution to the environment, and can better meet the environmental protection requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a first embodiment of a capillary viscometer cleaning device for petroleum product determination;

[0015] Figure 2 This is a schematic structural diagram of a second embodiment of a capillary viscometer cleaning device for petroleum product determination;

[0016] Figure 3 The present invention is a schematic structural diagram of a third embodiment of a capillary viscometer cleaning device for petroleum product determination.

[0017] In the figure: 1-capillary tube viscometer, 11-large diameter end, 12-small diameter end, 13-spherical part, 14-ultrasonic cleaning device, 2-cleaning liquid storage tank, 21-cleaning liquid drain pipe, 22-recovery connecting pipe, 3-liquid bath heating component one, 4-liquid bath heating component two, 5-waste liquid collecting tank, 51-waste liquid collecting pipe, 6-condensation component, 61-condensation inlet pipe, 62-outer pipe, 63-serpentine pipe, 64-circulation drain pipe, 65-circulation inlet pipe, 66-condensation pump, 67-condensation water tank, 7-vacuum regulating pump, 71-vacuum connecting pipe, 72-vacuum regulating valve, 73-open screen 8-recovery tank, 81-recovery intubation tube, 82-recovery pipe, 83-three-way valve, 831-air inlet end, 832-liquid inlet end. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example 1: Please refer to Figure 1A capillary viscometer cleaning device for petroleum product determination, a cleaning liquid storage tank 2, a capillary viscometer 1, a liquid bath heating component 1 3 is arranged outside the cleaning liquid storage tank 2, a cleaning liquid discharge pipe 21 is inserted above the cleaning liquid storage tank 2, the other end of the cleaning liquid discharge pipe 21 is sealed and connected to the large diameter end 12 of the capillary viscometer 1, the small diameter end 11 of the capillary viscometer 1 is connected to the waste liquid collection tank 5 through a waste liquid collection pipe 51, the exhaust port of the waste liquid collection tank 5 is connected to the condensation liquid inlet pipe 61 of the condensation component 6, a recovery tank 8 is installed below the condensation component 6, the upper end of the condensation component 6 is connected to the vacuum regulating pump 7 through a vacuum connecting pipe 71, and a liquid bath heating component 2 4 is also arranged outside the waste liquid collection tank 5. In this embodiment, the liquid bath heating component 1 3 and the liquid bath heating component 2 4 are both existing mature technologies, and organic solvents such as petroleum ether and n-hexane can be added to the cleaning liquid storage tank 2 to be used as cleaning liquid.

[0020] As a further solution, a vacuum regulating valve 72 is further provided on the vacuum connecting pipe 71. In this embodiment, the vacuum regulating valve 72 is an existing mature technology, and the flow rate of the cleaning liquid is controlled by the vacuum regulating valve 72.

[0021] As a further solution, the condensation assembly 6 includes an outer tube 62 connected to the condensation liquid inlet pipe 61, the liquid outlet pipe at the lower end of the outer tube 62 is inserted in the recovery tank 8, the exhaust pipe at the upper end of the outer tube 62 is connected to the vacuum connecting pipe 71, and a serpentine tube 63 is also installed in the outer tube 62, the liquid outlet of the serpentine tube 63 is connected to the outer condensation water tank 67 through the circulating discharge pipe 64, the liquid inlet of the serpentine tube 63 is connected to the outer condensation water tank 67 through the circulating liquid inlet pipe 65, and a condensation pump 66 is also installed on the circulating liquid inlet pipe 65. When the condensation pump 66 is working, the condensate in the condensation water tank 67 is transported to the serpentine tube 63 through the circulating liquid inlet pipe 65, and the organic solvent is condensed, so that the condensed organic solvent falls back into the recovery tank 8.

[0022] As a further solution, an ultrasonic cleaning device 14 is further provided on the outside of the capillary viscometer 1, and the liquid level in the ultrasonic cleaning device 14 is higher than the spherical portion 13 of the capillary viscometer 1. In this embodiment, by providing the ultrasonic cleaning device 14, the capillary viscometer 1 is ultrasonically treated, so that the oil adhered to the inner wall of the capillary viscometer 1 is accelerated to separate, which can effectively improve the cleaning effect of the capillary viscometer 1.

[0023] The working principle of the utility model is as follows: during cleaning, first, the cleaning liquid in the cleaning liquid storage tank 2 is heated by the liquid bath heating component 1-3, and then, the vacuum regulating pump 7 is started, and the gas in the waste liquid recovery tank 5 is extracted by the vacuum regulating pump 7, so that a negative pressure is generated in the waste liquid recovery tank 5, thereby, the cleaning liquid is sucked into the capillary viscometer 1 through the cleaning liquid discharge pipe 21, and at the same time, the ultrasonic cleaning device 14 is started, and the capillary viscometer 1 is ultrasonically treated by the ultrasonic cleaning device 14, and the cleaned waste liquid enters the waste liquid collecting tank 5 through the waste liquid collecting pipe 51, and then, the waste liquid collecting tank 5 is heated by the liquid bath heating component 2-4, so that the organic solvent in the waste liquid is vaporized, and then enters the outer tube 62, at this time, the condensation pump 66 works, and the condensate in the condensation water tank 67 is transported to the serpentine tube 63 through the circulating liquid inlet pipe 65, and the organic solvent is condensed. The condensed organic solvent will fall back into the recovery tank 8, thereby completing the purification and recovery of the organic solution, which can effectively reduce the waste of resources and reduce the pollution to the environment.

[0024] For example 2, please refer to Figure 2 , a capillary viscometer cleaning device for petroleum product determination, which is different from the first embodiment in that the exhaust port of the vacuum regulating pump 7 is equipped with an exhaust pipe, and the exhaust pipe is inserted in the open bottle 73. In this embodiment, the open bottle 73 is filled with an absorption liquid. In this embodiment, the absorption liquid can specifically adopt a relatively low temperature cleaning liquid, which can absorb a small amount of organic solvent that has not been liquefied in time, thereby reducing the pollution of the organic solvent to the environment.

[0025] For example 3, please refer to Figure 3 A capillary viscometer cleaning device for measuring petroleum products, which differs from the second embodiment in that a recovery connecting pipe 22 is also installed on the cleaning liquid storage tank 2, a circulation pump is installed at the end of the recovery connecting pipe 22, a three-way valve 83 is installed at the inlet end of the circulation pump, a recovery pipe 82 is installed at the liquid inlet end 832 of the three-way valve 83, a recovery pipe 82 is installed at the end of the recovery pipe 82, and a recovery cannula 81 is installed in the recovery tank 8.

[0026] When the cleaning liquid in the cleaning liquid storage tank 2 is insufficient, the valve at the liquid inlet end 832 of the three-way valve 83 is opened, and the valve at the air inlet end 831 is closed. Then, the circulation pump is started. The organic solvent recovered in the recovery tank 88 can be sucked out through the circulation pump in conjunction with the recovery pipe 82 and the recovery cannula 81, and then input into the cleaning liquid storage tank 2 through the recovery connecting pipe 22. At this time, the organic solvent can be recycled;

[0027] When it is necessary to transport cleaning liquid into the capillary viscometer 1, the valve 832 at the liquid inlet end of the three-way valve 83 is closed, and the valve 831 at the air inlet end of the three-way valve 83 is opened, and then the circulation pump works to pressurize the cleaning liquid storage tank 2 through the recovery connecting pipe 22, thereby increasing the pressure in the cleaning liquid storage tank 2, thereby pushing the cleaning liquid into the capillary viscometer 1 faster, which facilitates speeding up the cleaning work.

[0028] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention, and do not specifically refer to any part or element in the present invention and should not be understood as limitations on the present invention.

Claims

1. A capillary viscometer cleaning device for petroleum product determination, characterized in that: include: A cleaning liquid storage tank (2) and a capillary viscometer (1); a liquid bath heating component (3) is arranged outside the cleaning liquid storage tank (2); a cleaning liquid discharge pipe (21) is inserted above the cleaning liquid storage tank (2); the other end of the cleaning liquid discharge pipe (21) is sealedly connected to the large diameter end (12) of the capillary viscometer (1); the small diameter end (11) of the capillary viscometer (1) is connected to the waste liquid collection tank (5) through a waste liquid collection pipe (51); the exhaust port of the waste liquid collection tank (5) is connected to the condensation liquid inlet pipe (61) of the condensation component (6); a recovery tank (8) is installed below the condensation component (6); the upper end of the condensation component (6) is connected to the vacuum regulating pump (7) through a vacuum connecting pipe (71); and a liquid bath heating component (4) is also arranged outside the waste liquid collection tank (5).

2. A capillary viscometer cleaning device for petroleum product determination according to claim 1, characterized in that: The vacuum connecting pipe (71) is also provided with a vacuum regulating valve (72).

3. A capillary viscometer cleaning device for petroleum product determination according to claim 2, characterized in that: The condensation component (6) includes an outer tube (62) connected to the condensation liquid inlet pipe (61), the liquid outlet pipe at the lower end of the outer tube (62) is inserted in the recovery tank (8), the exhaust pipe at the upper end of the outer tube (62) is connected to the vacuum connecting pipe (71), and a serpentine tube (63) is also installed in the outer tube (62), the liquid outlet of the serpentine tube (63) is connected to the outer condensation water tank (67) through the circulation drain pipe (64), the liquid inlet of the serpentine tube (63) is connected to the outer condensation water tank (67) through the circulation inlet pipe (65), and a condensation pump (66) is also installed on the circulation inlet pipe (65).

4. A capillary viscometer cleaning device for petroleum product determination according to claim 3, characterized in that: An ultrasonic cleaning device (14) is also provided outside the capillary viscometer (1), and the liquid level in the ultrasonic cleaning device (14) is higher than the spherical portion (13) of the capillary viscometer (1).

5. The capillary viscometer cleaning device for petroleum product determination according to claim 3, characterized in that: The exhaust port of the vacuum regulating pump (7) is equipped with an exhaust pipe, and the exhaust pipe is inserted into the open bottle (73).

6. A capillary viscometer cleaning device for petroleum product determination according to claim 5, characterized in that: The cleaning liquid storage tank (2) is also provided with a recovery connecting pipe (22), a circulation pump is installed at the end of the recovery connecting pipe (22), a three-way valve (83) is installed at the inlet end of the circulation pump, a recovery pipe (82) is installed at the liquid inlet end (832) of the three-way valve (83), a recovery insert (81) is installed at the end of the recovery pipe (82), and the recovery insert (81) is inserted in the recovery tank (8).

Images