CN209624289U - Liquid viscosity detection device - Google Patents

Abstract

The utility model discloses a liquid viscosity detection device belongs to well drilling technical field. The device comprises: a draft tube (100), a funnel cone (200) and a filter screen (300). The inflow port (110) of the draft tube (100) is connected with the outflow port (210) of the funnel cone (200), and the filter screen (300) is arranged at a first height inside the funnel cone (200); the inner wall of the funnel cone (200) is marked with scale marks which are used for indicating the volumes of different spaces inside the funnel cone (200) and the draft tube (100). The utility model discloses in this liquid viscosity detection device simply easily carry, to the testing process high efficiency of liquid viscosity, labour saving and time saving.

Description

Liquid viscosity detection device

Technical Field

The utility model relates to a well drilling technical field especially relates to a liquid viscosity detection device.

Background

The drilling fluid is an important medium for balancing formation pressure, transmitting power and carrying rock debris when drilling an oil-gas well, and is one of key factors for ensuring normal development of drilling engineering. In order to ensure that the properties of the drilling fluid can meet the drilling requirements, the properties of the drilling fluid need to be continuously measured before and during the drilling process, wherein the most basic and important one is viscosity measurement.

At present, a mahalanobis funnel and a measuring cup are generally used for viscosity detection of the drilling fluid. Specifically, the mahalanobis funnel comprises a flow guide pipe, a funnel cone and a screen arranged on the inner wall of the funnel cone, wherein the flow guide pipe, the funnel cone and the screen are integrally formed. When the viscosity of the drilling fluid is detected, the outlet at the bottom of the flow guide pipe is blocked by a finger, the drilling fluid is injected into the Ma's funnel through the screen, and meanwhile, the measuring cup is placed below the outlet of the flow guide pipe. And then, removing the fingers and simultaneously starting a stopwatch, recording the time required by the liquid level of the drilling fluid in the measuring cup to reach the designated scale mark in the measuring cup, and calculating the viscosity of the drilling fluid according to the time.

However, since the mahalanobis funnel and the measuring cup need to be used in combination to detect the viscosity of the drilling fluid, the operation of the drilling fluid during viscosity detection is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a liquid viscosity detection device can solve inconvenient problem of operation when liquid viscosity detects among the correlation technique. The technical scheme is as follows:

in one aspect, there is provided a liquid viscosity detection apparatus, the apparatus comprising: a flow guide pipe, a funnel cone and a filter screen;

the inflow port of the flow guide pipe is connected with the outflow port of the funnel cone, and the filter screen is arranged at a first height inside the funnel cone;

the funnel cone is characterized in that scale marks are marked on the inner wall of the funnel cone and used for indicating the volumes of different spaces inside the funnel cone and the flow guide pipe.

Optionally, the inner wall of the funnel cone body is marked with a first scale mark;

the first scale mark is located at a second height inside the funnel vertebral body and between the filter screen and the outflow port of the funnel vertebral body, and the first scale mark is used for indicating the volume of a space between the first height and the second height inside the funnel vertebral body.

Optionally, the inner wall of the funnel cone body is marked with a mark line and a second scale mark;

the marker line is located at a third height inside the funnel cone;

the second tick mark is located at a fourth height inside the funnel cone between the mark line and the outflow opening of the funnel cone, the second tick mark being used to indicate the volume of the space inside the funnel cone between the third height and the fourth height.

Optionally, an external thread is arranged on the inflow port of the draft tube, an internal thread is arranged on the outflow port of the funnel cone, and the inflow port of the draft tube and the outflow port of the funnel cone are in threaded connection through the external thread and the internal thread; or,

the flow inlet of the flow guide pipe is provided with internal threads, the flow outlet of the funnel cone is provided with external threads, and the flow inlet of the flow guide pipe is in threaded connection with the flow outlet of the funnel cone through the internal threads and the external threads.

Optionally, the apparatus further comprises a baffle;

the baffle is arranged on the inner wall of the funnel cone, the side surface of the baffle is vertical to the side surface of the filter screen, and the baffle divides the inflow port of the funnel cone into two parts;

the filter screen is clamped between one side surface of the baffle and the inner wall of the funnel cone.

Optionally, a first outer edge is arranged on one side surface of the baffle, and a second outer edge is arranged on the inner wall of the funnel cone;

the edge of the filter screen is clamped on the first outer edge and the second outer edge.

Optionally, a first protrusion is arranged on the first outer edge, a second protrusion is arranged on the second outer edge, and a first groove and a second groove are arranged on the edge of the filter screen;

the first protrusion is located in the first groove and the second protrusion is located in the second groove.

Optionally, the device further comprises a handle;

the handle is connected to the outer wall of the funnel cone.

Optionally, the side wall of the funnel cone is comprised of a first side and a second side, the handle is attached to the first side of the side wall of the funnel cone, and the filter screen is mounted to the second side of the side wall of the funnel cone.

Optionally, the device further comprises a tube cap;

the tube cover is connected with the outflow port of the draft tube.

The utility model provides a technical scheme can bring following beneficial effect at least:

the embodiment of the utility model provides an in, liquid viscosity detection device includes honeycomb duct, funnel centrum and filter screen. The inflow port of the draft tube is connected with the outflow port of the funnel cone, and the filter screen is arranged at a first height inside the funnel cone; the inner wall of the funnel cone body is marked with scale marks which are used for indicating the volumes of different spaces inside the funnel cone body and the flow guide pipe. When using this liquid viscosity detection device to detect liquid viscosity, can seal the egress opening of honeycomb duct earlier, then pour into liquid into to the inside of honeycomb duct and funnel centrum through the filter screen to according to the scale mark on the inner wall of funnel centrum, guarantee that the volume of the liquid of pouring into is more than or equal to and predetermines the volume. And then opening the outlet of the draft tube, starting timing at the moment of opening the outlet of the draft tube, determining the time for flowing out the liquid with the preset volume from the liquid viscosity detection device according to the scale marks on the inner wall of the funnel cone, and then calculating the viscosity of the liquid according to the time. The liquid viscosity detection device is simple and easy to carry, and the process of detecting the liquid viscosity by using the liquid viscosity detection device is convenient and fast, and time and labor are saved.

Drawings

Fig. 1 is a schematic structural diagram of a first liquid viscosity detection apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second liquid viscosity detection apparatus provided in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a third liquid viscosity detection apparatus according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a fourth liquid viscosity detection apparatus according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a fifth liquid viscosity detection apparatus according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a sixth liquid viscosity detection apparatus according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a seventh liquid viscosity detection apparatus according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of an eighth liquid viscosity detection apparatus according to an embodiment of the present invention.

Reference numerals:

100: a flow guide pipe, 110: flow inlet of draft tube, 120: outflow port of draft tube, 200: funnel cone, 210: outflow opening of funnel cone, 220: inflow port of funnel cone, 230: second outer edge, 231: second protrusion, 300: a filter screen, 400: a baffle plate, 410: first outer edge, 411: first protrusion, 500: handle, 600: and (7) covering the tube.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a liquid viscosity detection device provided by an embodiment of the present invention, referring to fig. 1, the liquid viscosity detection device includes: a draft tube 100, a funnel cone 200 and a filter screen 300. The inflow port 110 of the draft tube 100 is connected with the outflow port 210 of the funnel cone 200, and the filter screen 300 is installed at a first height inside the funnel cone 200; the inner wall of the funnel cone 200 is marked with scale lines for indicating the volumes of different spaces inside the funnel cone 200 and the draft tube 100.

It should be noted that the funnel cone 200 is an inverted conical member that can be used to direct the flow of liquid. The liquid can be drilling fluid or other liquids, and the embodiment of the utility model provides a do not limit to this. Liquid can flow in from the inflow port 220 of the funnel cone 200 and then out from the outflow port 210 of the funnel cone 200.

In addition, the draft tube 100 is a means for directing the flow of liquid out of the funnel cone 200.

Further, the filter net 300 is a net member for filtering particles in the liquid and increasing the flow resistance of the liquid. The material and the size of filter screen 300 etc. can preset according to the user demand, the embodiment of the utility model provides a do not specifically limit to this.

The first height is a height of a plane where the filter screen 300 is installed in the funnel cone 200, and after the filter screen 300 is installed in the funnel cone 200, a side surface of the filter screen 300 is parallel to a bottom surface of the funnel cone 200.

In addition, the scale lines are lines for indicating the volumes of different spaces inside the funnel cone 200 and the draft tube 100. The range and the division value of scale mark can be preset according to the user demand, the embodiment of the utility model provides a do not specifically limit to this. For example, the scale mark may be set on the inner wall of the funnel cone 200 with the outflow port 120 of the draft tube 100 as a zero scale mark, and then with the division value of the scale mark being 10mL (milliliter) or 20mL or the like in the direction from the outflow port 120 of the draft tube 100 to the inflow port 220 of the funnel cone 200, and with the range of the scale mark being 1200mL or 1500mL or the like; alternatively, a zero scale may be provided on a portion of the inner wall of the funnel cone 200 that is slightly lower than the first height, for example, a portion of the inner wall of the funnel cone 200 that is 0.1mm (millimeter) or 0.2mm below the first height may be provided with a zero scale, and then the zero scale may be provided on the inner wall of the funnel cone 200 in a direction from the inflow port 220 of the funnel cone 200 to the outflow port 120 of the draft tube 100 with a division value of 10mL or 20mL or the like and a range of 1200mL or 1500mL or the like as the division value of the zero scale.

Specifically, when the liquid viscosity detection device is used for detecting the liquid viscosity, the outflow port 120 of the flow guide tube 100 can be sealed, then liquid can be injected into the flow guide tube 100 and the funnel cone 200 through the filter screen 300, and the volume of the injected liquid is ensured to be larger than or equal to the preset volume according to the scale marks on the inner wall of the funnel cone 200. Then, after the injection of the liquid is completed, the outlet 120 of the draft tube 100 is opened, and the timing is started at the instant when the outlet 120 of the draft tube 100 is opened, the time taken for the liquid of the preset volume to flow out from the liquid viscosity detecting apparatus is determined according to the scale marks on the inner wall of the funnel cone 200, and then the viscosity of the liquid is calculated according to the time. The preset volume may be preset, for example, the preset volume may be 946 mL.

For example, if the scale mark on the inner wall of the funnel cone 200 is set from small to large with the outflow port 120 of the draft tube 100 as a zero scale mark and along the direction from the outflow port 120 of the draft tube 100 to the inflow port 220 of the funnel cone 200, when the liquid viscosity detection device is used to detect the liquid viscosity, the outflow port 120 of the draft tube 100 may be sealed first, then liquid is injected into the interior of the draft tube 100 and the funnel cone 200 through the filter screen 300, and it is ensured that the volume of the injected liquid is greater than or equal to the preset volume according to the scale mark on the inner wall of the funnel cone 200, then after the liquid injection is completed, the total liquid volume corresponding to the scale mark where the liquid level of the liquid is located is recorded, and the remaining volume can be obtained by subtracting the preset volume from the total liquid volume. Then, the outlet 120 of the draft tube 100 is opened, and timing is started at the moment when the outlet 120 of the draft tube 100 is opened, and the time taken for the liquid level of the liquid in the liquid viscosity detection device to flow from the scale mark corresponding to the total liquid volume to the scale mark corresponding to the remaining volume is recorded, and finally the viscosity of the liquid is calculated according to the time.

If the zero graduation mark of the graduation marks on the inner wall of the funnel cone 200 is located on the portion of the inner wall of the funnel cone 200 that is slightly lower than the first height, and is arranged from small to large along the direction from the inflow port 220 of the funnel cone 200 to the outflow port 120 of the draft tube 100, when the liquid viscosity is detected by using the liquid viscosity detecting apparatus, the outlet 120 of the flow guide tube 100 may be sealed first, then, the liquid is injected into the guide pipe 100 and the funnel 200 through the filter screen 300, so that the liquid level of the liquid is at the zero graduation line, then, after the liquid injection is completed, the outlet 120 of the draft tube 100 is opened, and the timing is started at the moment when the outlet 120 of the draft tube 100 is opened, recording the time for the liquid level of the liquid in the liquid viscosity detection device to flow from the zero scale mark to the scale mark corresponding to the preset volume, and finally calculating the viscosity of the liquid according to the time.

It should be noted that the makrow funnel and the measuring cup are used together in the related art to detect the viscosity of the liquid. And in the embodiment of the utility model provides an in, be marked with the scale mark on the inner wall of funnel centrum 200, this scale mark can measure the liquid that flows in and flow out this liquid viscosity detection device to need not to cooperate other devices, only need use this liquid viscosity detection device just can accomplish the detection to liquid viscosity. The liquid viscosity detection device is simple and easy to carry, and the process of detecting the liquid viscosity by using the liquid viscosity detection device is convenient and fast, and time and labor are saved.

Two possible arrangements of the graduations on the inner wall of the funnel cone 200 are described below.

In a first arrangement, referring to fig. 2, the inner wall of the funnel cone 200 of the liquid viscosity measuring device is marked with a first scale mark. The first graduation mark is located at a second height inside the funnel cone 200 and between the filter screen 300 and the outflow opening 210 of the funnel cone 200.

It should be noted that the second height is a height of a plane where the first scale mark is located inside the funnel cone 200, and the plane is parallel to the bottom surface of the funnel cone 200. The first graduation mark is used to indicate a volume of a space between the first height and the second height inside the funnel cone 200, and the volume indicated by the first graduation mark may be the same as a preset volume.

Specifically, when the liquid viscosity detection device is used to detect the liquid viscosity, the outlet 120 of the flow guide tube 100 may be sealed first, then liquid is injected into the flow guide tube 100 and the funnel cone 200 through the filter screen 300, so that the liquid level of the liquid is equal to the plane where the installation position of the filter screen 300 is located, then after the liquid injection is completed, the outlet 120 of the flow guide tube 100 is opened, and the timing is started at the instant when the outlet 120 of the flow guide tube 100 is opened, the time taken for the liquid level of the liquid in the liquid viscosity detection device to flow to the first scale line is recorded, and finally the viscosity of the liquid is calculated according to the time.

It is worth to be noted that, the first scale marks are arranged on the inner wall of the funnel cone 200, so that when the time for flowing out the liquid with the preset volume from the liquid viscosity detection device is determined according to the scale marks on the inner wall of the funnel cone 200, the time for flowing out the liquid with the preset volume can be recorded more quickly and accurately according to the position of the first scale marks.

In a second arrangement, referring to fig. 3, the inner wall of the funnel cone 200 of the liquid viscosity measuring device is marked with a mark line and a second scale line. The marker line is located at a third height within the funnel cone 200; the second tick mark is located at a fourth height inside the funnel cone 200 between the mark line and the outflow opening 210 of the funnel cone 200.

Note that the mark line is a line for indicating a height to which the injected liquid needs to reach when the liquid is injected into the flow guide tube 100 and the inside of the funnel cone 200 through the filter mesh 300.

In addition, the second graduation mark is used to indicate a volume of a space between the third height and the fourth height inside the funnel cone 200, and the volume indicated by the second graduation mark may be the same as the preset volume.

Again, the third height is the height of the plane in which the location of the marker line is on the interior of the funnel cone 200, which plane is parallel to the bottom surface of the funnel cone 200. The fourth height is the height of the plane in which the second graduation marks are located on the interior of the funnel cone 200, which is parallel to the bottom surface of the funnel cone 200.

Specifically, when the liquid viscosity detection apparatus is used to detect the liquid viscosity, the outlet 110 of the flow guide tube 100 may be sealed, then the liquid may be injected into the interior of the flow guide tube 100 and the funnel cone 200 through the filter screen 300, so that the liquid level of the liquid is at the mark line, then the outlet 120 of the flow guide tube 100 is opened after the liquid injection is completed, and the timing is started at the instant when the outlet 120 of the flow guide tube 100 is opened, so as to record the time taken for the liquid in the liquid viscosity detection apparatus to flow from the mark line to the second scale line, and finally calculate the viscosity of the liquid according to the time.

It should be noted that, the inner wall of the funnel cone 200 is provided with a mark line and a second scale line, so that when the time for flowing out the liquid with the preset volume from the liquid viscosity detection device is determined according to the scale line on the inner wall of the funnel cone 200, the height of the liquid to be injected is determined according to the mark line, and the position to which the liquid level of the liquid should reach after the liquid with the preset volume flows out is determined according to the second scale line, thereby facilitating the timing.

The connection structure between the inflow port 110 of the flow guide tube 100 and the outflow port 210 of the funnel 200 may be any one of the following two structures:

in the first structure, an external thread is provided on the inflow port 110 of the draft tube 100, an internal thread is provided on the outflow port 210 of the funnel cone 200, and the inflow port 110 of the draft tube 100 and the outflow port 210 of the funnel cone 200 are screw-coupled by the external thread and the internal thread.

In the second structure, an internal thread is provided at the inflow port 110 of the draft tube 100, an external thread is provided at the outflow port 210 of the funnel cone 200, and the inflow port 110 of the draft tube 100 and the outflow port 210 of the funnel cone 200 are screw-coupled by the internal thread and the external thread.

It is worth explaining that, in the correlation technique, the mahalanobis funnel and the measuring cup are used in cooperation for detecting the liquid viscosity, and the draft tube and the funnel cone of the mahalanobis funnel are integrally formed, so that after the mahalanobis funnel and the measuring cup are used for detecting the liquid viscosity, the draft tube and the funnel cone in the mahalanobis funnel are difficult to clean, the draft tube and the funnel cone which are insufficiently cleaned can influence the detection of the liquid viscosity next time, and when the draft tube or the funnel cone is damaged, the draft tube or the funnel cone cannot be independently replaced. In the embodiment of the present invention, the flow inlet 110 of the flow guiding tube 100 and the flow outlet 210 of the funnel cone 200 can be connected by screw threads, i.e. the flow guiding tube 100 and the funnel cone 200 can be detachable, under such a condition, the flow guiding tube 100 and the funnel cone 200 can be separated easily, so as to clean the flow guiding tube 100 and the funnel cone 200 conveniently, and when the flow guiding tube 100 or the funnel cone 200 is damaged, the flow guiding tube 100 or the funnel cone 200 can be replaced independently.

Further, in order that the liquid does not overflow from the edge of the filter screen 300 when the liquid is injected through the filter screen 300, referring to fig. 4, the liquid viscosity detecting apparatus may further include a baffle 400. The baffle 400 is arranged on the inner wall of the funnel cone 200, the side surface of the baffle 400 is vertical to the side surface of the filter screen 300, and the baffle 400 divides the inflow port 220 of the funnel cone 200 into two parts; the filter screen 300 is sandwiched between one side of the baffle 400 and the inner wall of the funnel cone 200.

Note that the baffle 400 is a member for preventing liquid from overflowing from the edge of the filter screen 300. The baffle 400 and the funnel cone 200 may be integrally formed, or two opposite clamping grooves are formed on the inner wall of the funnel cone 200 near the filter screen 300, and the two clamping grooves are perpendicular to the bottom surface of the funnel cone 200, and then two opposite edges of the baffle 400 are respectively located in the two clamping grooves.

In order to enable the filter screen 300 to be clamped between one side surface of the baffle 400 and the inner wall of the funnel cone 200 more stably, referring to fig. 5, a first outer edge 410 is arranged on one side surface of the baffle 400, and a second outer edge 230 is arranged on the inner wall of the funnel cone 200; the edges of the filter screen 300 are clamped on the first outer edge 410 and the second outer edge 230.

It should be noted that the edges of the filter screen 300 are clamped on the first outer edge 410 and the second outer edge 230, that is, the edges of the filter screen 300 are in contact with the first outer edge 410 and the second outer edge 230, that is, the edges of the filter screen 300 are placed on the first outer edge 410 and the second outer edge 230.

In addition, the filter screen 300 may be sandwiched between one side of the filter screen 300 and the inner wall of the funnel cone 200 by the first outer edge 410 and the second outer edge 230, so that the filter screen 300 is not easily dropped from between one side of the baffle 400 and the inner wall of the funnel cone 200 to the inside of the funnel cone 200.

It is worth to say that, set up first outer edge 410 on one side of baffle 400, set up second outer edge 230 on the inner wall of funnel centrum 200, then through first outer edge 410 and second outer edge 230 with filter screen 300 clamp establish between one side of baffle 400 and the inner wall of funnel centrum 200, filter screen 300 can be installed on funnel centrum 200 comparatively conveniently this moment, also can dismantle from funnel centrum 200 comparatively conveniently, thereby conveniently wash filter screen 300, and when filter screen 300 appears the breakage, also conveniently change filter screen 300.

In order to clamp the edges of the filter screen 300 on the first outer edge 410 and the second outer edge 230 more firmly, referring to fig. 6, a first protrusion 411 is arranged on the first outer edge 410, a second protrusion 231 is arranged on the second outer edge 230, and a first groove and a second groove are arranged on the edge of the filter screen 300; the first protrusion 411 is located in the first groove and the second protrusion 231 is located in the second groove.

It should be noted that the structure and the number of the first protrusion 411 and the second protrusion 231 may be set according to the use requirement, for example, the number of the first protrusion 411 may be equal to or less than the number of the first grooves, and the number of the second protrusion 231 may be equal to or less than the number of the second grooves.

It should be noted that the first protrusion 411 on the first outer edge 410 and the second protrusion 231 on the second outer edge 230 are respectively located in the first groove and the second groove of the filter screen 300, so that the edges of the filter screen 300 are clamped on the first outer edge 410 and the second outer edge 230 more tightly, and the filter screen 300 is not easy to move or fall off.

Further, in order to enable a tester to more conveniently grip the liquid viscosity testing device during the process of testing the liquid viscosity, referring to fig. 7, the liquid viscosity testing device may further include a handle 500. The handle 500 is attached to the outer wall of the funnel cone 200.

It should be noted that, the shape, size, material, and the like of the handle 500 may be preset according to the use requirement, and the embodiment of the present invention is not particularly limited thereto.

It should be noted that, when the liquid viscosity detection device is used by a detection person to detect the liquid viscosity, the position of the funnel cone 200 and the position of the draft tube 100 can be stabilized more conveniently by grasping the handle 500, that is, the position of the viscosity detection device is stabilized, so that the detection of the liquid viscosity is facilitated, and the viscosity detection result is more accurate.

In order to enable an inspector to conveniently inject liquid into the flow guide tube 100 and the funnel cone 200 through the filter screen 300 when the inspector grasps the liquid viscosity testing apparatus, referring to fig. 7, the sidewall of the funnel cone 200 is composed of a first side and a second side, the handle 500 is connected to the first side of the sidewall of the funnel cone 200, and the filter screen 300 is installed at the second side of the sidewall of the funnel cone 200.

It should be noted that, the first side in the lateral wall of funnel centrum 200 is the one side that is connected with handle 500, the second side in the lateral wall of funnel centrum 200 is the one side of installing filter screen 300, handle 500 can be connected on the first side with the position that filter screen 300 apart from the farthest, so, after inspection personnel gripping handle 500, can be comparatively conveniently through filter screen 300 injection liquid, and make this liquid viscosity detection device's atress comparatively balanced at the injection liquid in-process, more convenient operation.

Specifically, when the liquid viscosity detection device is used for detecting the liquid viscosity, a detection person can hold the handle 500 with one hand to stabilize the positions of the funnel cone 200 and the flow guide pipe 100, then, the other hand of the detection person can inject liquid through the filter screen 300, and the volume of the injected liquid is larger than or equal to the preset volume according to the scale marks on the inner wall of the funnel cone 200. Then, after the injection of the liquid is completed, the outlet 120 of the draft tube 100 is opened, and the timing is started at the instant when the outlet 120 of the draft tube 100 is opened, the time taken for the liquid of the preset volume to flow out from the liquid viscosity detecting apparatus is determined according to the scale marks on the inner wall of the funnel cone 200, and then the viscosity of the liquid is calculated according to the time.

Further, in order to facilitate sealing of the outflow port 120 of the draft tube 100, referring to fig. 8, the liquid viscosity detecting apparatus may further include a tube cap 600. The cap 600 is connected to the outflow port 120 of the draft tube 100.

It should be noted that the inner diameter of the tube cover 600 may be equal to or slightly smaller than the outer diameter of the flow guide tube 100, for example, the inner diameter of the tube cover 600 may be smaller than the outer diameter of the flow guide tube 100 by 1mm, 2mm, and the like, which is not specifically limited in the embodiment of the present invention.

Specifically, when the liquid viscosity detection apparatus is used to detect the liquid viscosity, the tube cap 600 is first sleeved on the outer wall of the flow guide tube 100 at a position close to the outlet 120 of the flow guide tube 100 to seal the outlet 120 of the flow guide tube 100, and then the liquid is injected through the filter screen 300. When the time required for discharging the predetermined volume of liquid is determined, the cap 600 may be detached from the outlet 120 of the flow guide tube 100, and the timing may be started at the instant when the cap 600 is detached, and the time taken for discharging the predetermined volume of liquid from the liquid viscosity detecting apparatus may be determined according to the scale marks on the inner wall of the funnel cone 200, and then the viscosity of the liquid may be calculated according to the time.

In the embodiment of the present invention, the liquid viscosity detecting device includes a flow guiding tube 100, a funnel cone 200 and a filtering net 300. The inflow port 110 of the draft tube 100 is connected with the outflow port 210 of the funnel cone 200, and the filter screen 300 is installed at a first height inside the funnel cone 200; the inner wall of the funnel cone 200 is marked with scale lines for indicating the volumes of different spaces inside the funnel cone 200 and the draft tube 100. When the liquid viscosity detection device is used for detecting the liquid viscosity, the outflow port 120 of the draft tube 100 can be sealed firstly, then liquid is injected into the draft tube 100 and the funnel cone 200 through the filter screen 300, and the volume of the injected liquid is larger than or equal to the preset volume according to the scale marks on the inner wall of the funnel cone 200. Then, the outlet 120 of the draft tube 100 is opened, and timing is started at the moment when the outlet 120 of the draft tube 100 is opened, and the time taken for a predetermined volume of liquid to flow out from the liquid viscosity detecting apparatus is determined according to the scale marks on the inner wall of the funnel cone 200, and then the viscosity of the liquid is calculated according to the time. The liquid viscosity detection device is simple and easy to carry, and the process of detecting the liquid viscosity by using the liquid viscosity detection device is convenient and fast, and time and labor are saved.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. A liquid viscosity detection device, the device comprising: a draft tube (100), a funnel cone (200) and a filter screen (300);

the inflow port (110) of the draft tube (100) is connected with the outflow port (210) of the funnel cone (200), and the filter screen (300) is installed at a first height inside the funnel cone (200);

the inner wall of the funnel cone body (200) is marked with scale marks, and the scale marks are used for indicating the volumes of different spaces inside the funnel cone body (200) and the draft tube (100).

2. The device of claim 1, wherein the inner wall of the funnel cone (200) is marked with a first graduation mark;

the first graduation mark is positioned at a second height inside the funnel cone (200) and between the filter screen (300) and the outflow opening (210) of the funnel cone (200), and the first graduation mark is used for indicating the volume of a space inside the funnel cone (200) between the first height and the second height.

3. The device of claim 1, wherein the inner wall of the funnel cone (200) is marked with a marking line and a second graduation line;

the marker line is located at a third height inside the funnel cone (200);

the second graduation mark is located at a fourth height inside the funnel cone (200) and between the marking line and the outflow opening (210) of the funnel cone (200), the second graduation mark being used to indicate a volume of a space inside the funnel cone (200) between the third height and the fourth height.

4. The device according to any of the claims 1 to 3, characterized in that the inflow opening (110) of the draft tube (100) is provided with an external thread, the outflow opening (210) of the funnel cone (200) is provided with an internal thread, and the inflow opening (110) of the draft tube (100) and the outflow opening (210) of the funnel cone (200) are in threaded connection through the external thread and the internal thread; or,

an internal thread is arranged on the inflow port (110) of the draft tube (100), an external thread is arranged on the outflow port (210) of the funnel cone (200), and the inflow port (110) of the draft tube (100) is in threaded connection with the outflow port (210) of the funnel cone (200) through the internal thread and the external thread.

5. A device according to any of claims 1-3, characterized in that the device further comprises a baffle (400);

the baffle (400) is arranged on the inner wall of the funnel cone (200), the side surface of the baffle (400) is vertical to the side surface of the filter screen (300), and the baffle (400) divides the inflow port (220) of the funnel cone (200) into two parts;

the filter screen (300) is clamped between one side surface of the baffle (400) and the inner wall of the funnel cone (200).

6. The device according to claim 5, wherein a first outer rim (410) is provided on one side of the baffle (400) and a second outer rim (230) is provided on the inner wall of the funnel cone (200);

the edge of the filter screen (300) is clamped on the first outer edge (410) and the second outer edge (230).

7. The device according to claim 6, characterized in that the first outer edge (410) is provided with a first protrusion (411), the second outer edge (230) is provided with a second protrusion (231), and the edge of the filter screen (300) is provided with a first groove and a second groove;

the first protrusion (411) is located in the first groove and the second protrusion (231) is located in the second groove.

8. A device according to any of claims 1-3, characterized in that the device further comprises a handle (500);

the handle (500) is attached to the outer wall of the funnel cone (200).

9. The apparatus of claim 8, wherein the side wall of the funnel cone (200) is comprised of a first side and a second side, the handle (500) is attached to the first side of the side wall of the funnel cone (200), and the filter screen (300) is mounted to the second side of the side wall of the funnel cone (200).

10. The device according to any of claims 1-3, wherein the device further comprises a tube cover (600);

the tube cover (600) is connected with the outflow opening (120) of the draft tube (100).