CN115855749A - Viscosity tester for lubricating oil production - Google Patents

Abstract

The invention relates to the field of lubricating oil viscosity measurement, and discloses a viscosity measurement instrument for lubricating oil production, which comprises a capillary viscometer, an outer shell and a mounting rack arranged in the outer shell, wherein a constant temperature device and a constant temperature groove are arranged on the mounting rack, the constant temperature device is used for keeping the temperature in the constant temperature groove at a preset value, a constant temperature medium is gas, the capillary viscometer is inserted into the constant temperature groove and is used for measuring the viscosity of lubricating oil injected into the capillary viscometer.

Description

Viscosity tester for lubricating oil production

Technical Field

The invention relates to the field of lubricating oil, in particular to the field of lubricating oil viscosity measurement, and especially relates to a viscosity measurement instrument for lubricating oil production.

Background

The capillary method is a method for measuring the viscosity of a fluid, which is to measure the viscosity of the fluid by a capillary viscometer, and the method generally comprises the following steps: washing and drying: the viscometer is cleaned and put into an oven, the surface of the viscometer is dried, fluid is filled, the temperature is kept constant and the viscometer is adjusted to be vertical, in the steps, the constant temperature is realized by inserting the viscometer into a constant temperature tank, the viscometer is in an environment with a preset temperature value through an aqueous medium in the constant temperature tank, and the aqueous medium is used as the constant temperature medium, so after the viscosity measurement is completed, moisture is attached to the outside of the viscometer, the surface dewatering and drying treatment of the viscometer needs to be carried out, and the process is complicated, and in addition, the aqueous medium is used as the constant temperature medium in the heating process: a. the specific heat capacity of water is large, so that the time spent on heating the water to a preset temperature value is long, and the overall measurement time of the fluid viscosity is further prolonged; b. in the heating process of water, the temperature of the aqueous medium of each part in the thermostatic bath cannot reach the same and consistent, the temperature difference exists among the parts, the closer the water temperature is to the heating element, the higher the water temperature is, on the contrary, the farther the water temperature is from the heating element, the lower the water temperature is, patent document with the publication number of CN213903231U describes that the thermostatic bath often has uneven heating of bath liquid during heating, the heating efficiency is low, temperature fluctuation can be caused, the test result is influenced, and therefore, the point b is known to exist really; c. water is placed in the container for a long time, and the water quality changes, so that the water medium in the constant temperature tank needs to be poured out after the viscosity measurement is finished, and the water medium is injected into the constant temperature tank when the viscosity measurement is carried out next time, which is more complicated; based on this, the invention provides a viscosity tester for lubricating oil production.

Disclosure of Invention

In order to solve the problems mentioned in the background above, the present invention provides a viscosity measuring instrument for lubricant oil production.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.

The utility model provides a viscosity apparatus for lubricating oil production, includes capillary viscosimeter, shell body and sets up the mounting bracket in the shell body, installs constant temperature equipment and thermostatic bath on the mounting bracket, and constant temperature equipment is used for making the temperature in the thermostatic bath keep at default and constant temperature medium for gas, and capillary viscosimeter is used for inserting the thermostatic bath, carries out viscosity measurement to the lubricating oil of pouring into self inside.

Furthermore, the constant temperature device comprises a heating unit and a transfer unit, the heating unit is used for heating air and drawing the heated hot air to flow towards the transfer unit, a first thermometer is arranged in the transfer unit, and the transfer unit is used for drawing the hot air to flow towards the constant temperature groove.

Further, the heating unit includes air pump one and heating jar, and the inlet end of air pump one is provided with pipeline one, the end of giving vent to anger is provided with pipeline two, and pipeline two and heating jar intercommunication, the top of heating jar are provided with the connecting pipe, and in the constant temperature jar in the transfer unit was stretched into on the top of connecting pipe, be provided with solenoid valve one on the connecting pipe, thermometer one sets up in the constant temperature jar.

Further, the bottom of heating jar is provided with motor one, the coaxial vertical (mixing) shaft that is provided with up of output of motor one, the top of (mixing) shaft stretches into in the heating jar and coaxial arrangement has the stirring leaf, the inside cavity and both intercommunication of stirring leaf and (mixing) shaft are provided with heating element in the stirring leaf, be provided with on the stirring leaf and be used for carminative delivery outlet, the pipeline two-way is provided with the input hole that is used for with the rotary joint intercommunication on rotary joint and the (mixing) shaft with the (mixing) shaft connection and the (mixing) shaft.

Furthermore, the thermostatic bath comprises an outer bath shell, the upper end and the lower end of the outer bath shell are opened, the upper opening end is provided with an upper bath cover in a matching way, the lower opening end is provided with a lower bath cover in a matching way, an inner bath shell is coaxially arranged in the outer bath shell, the inner bath shell divides the inner cavity of the outer bath shell into an outer cavity and an inner cavity which are not communicated with each other, the outer wall of the outer bath shell is provided with a nozzle and a nozzle, a three-way pipe is arranged among the nozzle, the bottom of the inner cavity and the thermostatic bath, one nozzle of the three-way pipe is communicated with the nozzle through a seventh pipeline, one nozzle of the three-way pipe is communicated with the bottom of the inner cavity through an eighth pipeline, the seventh pipeline is provided with a second electromagnetic valve, and the eighth pipeline is provided with a third electromagnetic valve;

the upper end face of the upper groove cover is provided with an annular shell which is annular, the lower end of the annular shell is open, and the upper end of the annular shell is closed, the outer wall of the annular shell is provided with an exhaust nozzle, the upper groove cover is provided with an exhaust hole used for communicating the inner chamber with the annular shell, the exhaust nozzle is provided with a fifth electromagnetic valve, the outlet nozzle is provided with a fourth electromagnetic valve, and the outer chamber is provided with a second thermometer.

Furthermore, the mounting hole has been seted up to the terminal surface of upper chute cover, is provided with the viscometer support that is used for installing the capillary viscometer in the mounting hole, constitutes sealed cooperation between capillary viscometer and the viscometer support and between viscometer support and the mounting hole.

Further, the base is installed to the bottom of interior chamber, the top is provided with the footstock, it has a plurality of guide boards to distribute along vertical direction array between base and the footstock, the guide board is the annular plate shape of arranging with the interior chamber is coaxial, the outer disc of guide board extends all around with the axial has the scraper blade, the scraper blade is platform shape plate shape and horizontal cross sectional area and is steadilyd decrease by supreme down, a plurality of guide boards realize assembly connection through the strengthening rib that sets up between base and footstock, and in a plurality of scraper blades, the projection distance on the horizontal direction between the bottom of two adjacent scraper blades is the definite value.

Further, the inside cavity and the excircle face of lower groove cover are provided with the suction nozzle, suction nozzle and eight intercommunications of pipeline, motor two is installed to the bottom of base, the output body is installed to the coaxial vertical downward of output of motor two, the pivot that stretches into in the lower groove cover is installed down to the inside cavity and the coaxial bottom of the output body, the inside cavity and the excircle face of pivot are provided with the inlet port with the output body intercommunication, the up end of the output body is provided with a plurality of gassiness along the circumferencial direction array, the upper and lower both ends opening of gassiness and communicate each other with the output body.

Further, a gas storage tank and a second air pump are arranged on the mounting frame, a third pipeline is arranged between the air inlet end of the second air pump and the outlet nozzle, a fourth pipeline is arranged between the third pipeline and the exhaust nozzle, the air outlet end of the second air pump is communicated with the gas storage tank through a fifth pipeline, the first pipeline is communicated with the gas storage tank through a sixth pipeline, a sixth electromagnetic valve is arranged on the first pipeline, and a seventh electromagnetic valve is arranged on the sixth pipeline.

Compared with the prior art, the invention has the beneficial effects that:

in this application, utilize the air to replace aqueous medium as the constant temperature medium, make the temperature in the constant temperature tank keep at the default: a. the outer surface of the capillary viscometer is kept dry in the using process, and the surface of the viscometer does not need to be dewatered and dried after the viscosity measurement is finished; b. compared with an aqueous medium, the air medium has the advantages that on one hand, the time spent for heating the air medium to the preset temperature value is short, on the other hand, the temperature difference between all parts is small during air heating, and further, in the application, the temperature of all parts of the air is kept consistent through various measures, the viscometer is wrapped in uniformly distributed hot air, the external environment temperature of the viscometer is more stable, and the measurement result is more accurate;

further:

1. the constant temperature device is provided with a transfer unit, hot air with a preset temperature value is stored by the transfer unit, and the temperature of the hot air in the heating unit is higher than the preset temperature value, so that the temperature of the hot air in the transfer unit is lower than the preset value, the thermometer sends a signal to the control mainboard, the control mainboard sends a signal to the heating unit, the heating unit supplies the hot air with the temperature higher than the preset value into the transfer unit, and further the temperature of the hot air in the transfer unit rises and recovers to the preset temperature value;

2. in the heating unit, the arrangement of the stirring blade can ensure that air is fully contacted with the heating element when flowing in the blade, the heating effect is better, meanwhile, the rotation of the stirring blade can realize the stirring of hot air in the heating tank, so that the hot air in the heating tank is heated more uniformly, and the heating efficiency is improved;

3. in the process that the hot air flows towards the interior of the thermostatic bath, the second motor drives the output body to rotate, so that the hot air vertically flows upwards in an annular shape in the inner cavity, namely, the hot air is uniformly distributed in the inner cavity along the circumferential direction of the inner cavity and vertically flows upwards;

4. the in-process of hot-air is changed to the thermostatic bath, and the thermometer is the setting in the exocoel, and when the ambient temperature of the outer chamber of thermometer two responses was less than preset temperature range, signals, and the outer chamber is changed the hot-air earlier, then interior chamber is changed the hot-air again: on one hand, the outer chamber is subjected to heat exchange with the external air through the outer tank shell to generate temperature reduction, and the hot air in the inner chamber is subjected to heat exchange with the air in the outer chamber through the inner tank shell to generate temperature reduction, so that at the same time, the temperature of the hot air in the outer chamber is lower than that of the hot air in the inner chamber, therefore, the second thermometer is arranged in the outer chamber and senses the temperature reduction in the outer chamber to send a signal to replace the hot air, so that the temperature sensing is more sensitive, the temperature fluctuation of the hot air in the inner chamber is smaller, and the temperature of the inner chamber is the ambient temperature of the viscometer, so that the viscometer can be in a preset temperature environment with a smaller temperature fluctuation range, and the viscosity measurement result is more accurate; on the other hand, firstly, the outer chamber is subjected to hot air replacement, and then, the inner chamber is subjected to hot air replacement, and the hot air replacement method has the significance that in the hot air replacement process of the inner chamber, the temperature of the outer chamber is replaced in one step, so that the inner chamber is in the preset temperature value environment, otherwise, the inner chamber and the outer chamber more exchange heat air together or the inner chamber replaces hot air in one step, and then in the hot air replacement process, because old hot air with reduced temperature still exists in the outer chamber, the air temperature in the outer chamber is lower than the preset temperature value, namely, the ambient temperature around the inner chamber does not reach the preset temperature value, so that in the hot air replacement process of the inner chamber, the temperature difference exists between the inner chamber and the outer chamber, the temperature fluctuates, and the hot air replacement of the inner chamber is not facilitated.

1, 2, 3 and 4 cooperate with each other to make the viscometer surrounded by uniformly distributed hot air and the temperature fluctuation of the hot air surrounding the viscometer smaller, thereby improving the accuracy of the result of viscosity measurement.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an internal schematic view of the present invention;

FIG. 3 is a schematic view of the air pumps I, II and the air reservoir;

FIG. 4 is a schematic view of a heating tank and a thermostat tank;

FIG. 5 is a schematic view of the interior of the heating tank;

FIG. 6 is a schematic view of a first motor, a stirring shaft and stirring blades;

FIG. 7 is a schematic view of a stirring blade and a heating element;

FIG. 8 is a schematic view of a thermostatic bath;

FIG. 9 is a front view of the thermostatic bath;

FIG. 10 is an exploded view of the outer casing and the inner casing;

FIG. 11 is a schematic view of the upper well cover, viscometer bracket, viscometer, and ring housing;

FIG. 12 is a schematic view of the guide plate and the scraper;

FIG. 13 is an exploded view of the lower chute cover and the output body;

fig. 14 is a sectional view of the output body.

The reference numbers in the drawings are:

100. an outer housing; 101. a mounting frame; 102. a display screen;

200. a thermostatic device; 201. a first air pump; 202. a first pipeline; 203. a second pipeline; 204. a rotary joint; 205. a gas storage tank; 206. a second air pump; 207. a third pipeline; 208. a fourth pipeline; 209. a fifth pipeline; 210. a sixth pipeline; 211. a heating tank; 212. a constant temperature tank; 213. a three-way pipe; 214. a connecting pipe; 215. a first motor; 216. a stirring shaft; 217. stirring blades; 218. an input aperture; 219. an output aperture; 220. connecting holes; 221. a heating element; 222. a seventh pipeline; 223. a eighth pipeline;

300. a thermostatic bath; 301. an outer tub shell; 302. feeding a nozzle; 303. discharging the nozzle; 304. an inner shell; 305. an upper tank cover; 306. an exhaust hole; 307. a ring shell; 308. an exhaust nozzle; 309. a base; 310. a guide plate; 311. a lower trough cover; 312. an air inlet nozzle; 313. an output body; 314. a rotating shaft; 315. a second motor; 316. an air inlet; 317. gas is discharged;

400. an oil pump; 401. an oil pipe; 500. viscometer support.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

As shown in fig. 1 to 14, a viscosity measuring instrument for producing lubricating oil comprises a capillary viscometer, an outer shell 100 and a mounting rack 101 arranged in the outer shell 100, wherein a constant temperature device 200 and a constant temperature bath 300 are arranged on the mounting rack 101, the constant temperature device 200 is used for keeping the temperature in the constant temperature bath 300 at a preset value, a constant temperature medium is gas, such as air, the capillary viscometer is used for being inserted into the constant temperature bath 300 to measure the viscosity of lubricating oil injected into the capillary viscometer, and the measurement of the fluid viscosity by the capillary viscometer can be realized by the prior art and is not described again.

In this application, utilize the air as the constant temperature medium, make the temperature in the constant temperature chamber 300 keep at the default, its meaning lies in: 1. the outer surface of the capillary viscometer is kept dry in the using process, and the surface of the viscometer does not need to be dewatered and dried after the viscosity measurement is finished; 2. compared with an aqueous medium, the air medium has the advantages that on one hand, the time spent for heating the air medium to the preset temperature value is short, on the other hand, the temperature difference between all parts is small during air heating, and further, in the application, the temperature of all parts of the air is kept consistent through various measures, the viscometer is wrapped in uniformly distributed hot air, the external environment temperature of the viscometer is more stable, and the measurement result is more accurate; 3. the living environment is filled with air, and the constant-temperature medium does not need to be replaced frequently.

As shown in fig. 2 to 7, the thermostatic device 200 includes a heating unit and a relay unit, wherein the heating unit is configured to heat air and draw the heated hot air to flow toward the relay unit, a first thermometer is disposed in the relay unit, and the relay unit is configured to draw the hot air to flow toward the thermostatic bath 300; the relay unit is arranged because the temperature of the gas in the thermostatic bath 300 is reduced after the interval preset time, the gas in the thermostatic bath 300 needs to be replaced, so that the temperature of the gas in the thermostatic bath 300 is kept within the preset temperature value range, if the hot air heated by the heating unit is directly led into the thermostatic bath 300, the temperature of the hot air is constantly changed when the heating unit keeps warm for the hot air in the interval ventilation time period, specifically, the temperature of the hot air is reduced, the heating unit heats the hot air, the temperature of the hot air is increased and recovered, the heating unit cancels heating, and the process is repeated, so that the temperature of the hot air in the heating unit constantly fluctuates, the temperature of the hot air is heated to recover the temperature of the hot air, a certain heating time is needed, and the relay unit is not beneficial to supplying the hot air with the preset temperature value into the thermostatic bath 300, therefore, the transit unit is arranged, the transit unit is used for storing hot air with a preset temperature value, and the temperature of the hot air in the heating unit is higher than the preset temperature value, so that the temperature of the hot air in the transit unit is lower than the preset value, the thermometer sends a signal to the control mainboard, the control mainboard sends a signal to the heating unit, the heating unit supplies the hot air with the temperature higher than the preset value into the transit unit, and further the temperature of the hot air in the transit unit rises and recovers to the preset temperature value, in the process, because the heating unit prepares the hot air with the temperature higher than the preset value in real time and the air flows fast, the time for the hot air in the transit unit to recover to the preset temperature value is very short, namely, the hot air in the transit unit can be regarded as being constantly kept at the preset temperature value, and then the transit unit supplies the hot air to the thermostatic bath 300, the temperature of the hot air is more stable.

Specifically, the heating unit comprises an air pump I201 and a heating tank 211, a first pipeline 202 is arranged at the air inlet end of the air pump I201, a second pipeline 203 is arranged at the air outlet end of the air pump I203, the second pipeline 203 is communicated with the heating tank 211, a connecting pipe 214 is arranged at the top of the heating tank 211, the top end of the connecting pipe 214 extends into a constant temperature tank 212 in the transit unit, a first electromagnetic valve is arranged on the connecting pipe 214, and a first thermometer is arranged in the constant temperature tank 212; the first air pump 201 operates to pump air into the heating tank 211 for heating, and the first electromagnetic valve is opened, so that the hot air in the heating tank 211 flows towards the interior of the constant temperature tank 212.

Further, as shown in fig. 5-7, a first motor 215 is disposed at the bottom of the heating tank 211, a stirring shaft 216 is disposed coaxially and vertically upward at an output end of the first motor 215, a top end of the stirring shaft 216 extends into the heating tank 211 and is coaxially provided with a stirring blade 217, the stirring blade 217 includes a fan body coaxially disposed at a top end of the stirring shaft 216, a lower end of the stirring shaft 216 is closed, an upper end of the stirring shaft 216 is open, a lower end of the fan body is open, an upper end of the fan body is closed, the stirring shaft 216 and the fan body are communicated with each other, a plurality of blades are disposed on an outer circumferential surface of the fan body in an array manner along a circumferential direction, the blades are hollow, the blades and the fan body are communicated through a connecting hole 220, a heating element 221 is disposed inside each blade, an output hole 219 is disposed on an upper end surface of each blade, and an opening of each blade, which deviates from the fan body, is blocked by the heating element 221.

The second pipe 203 is connected with the stirring shaft 216 through the rotary joint 204, and the stirring shaft 216 is provided with an input hole 218 for communicating with the rotary joint 204.

During the use, the air that air pump 201 operation was inhaled loops through second 203, rotary joint 204, input hole 218, (mixing) shaft 216, the fan body, connecting hole 220, the blade, output hole 219 flows into heating tank 211, in this process, heating element 221 starts, air can fully contact with heating element 221 when flowing in the blade, rethread output hole 219 flows into heating tank 211 after being heated by heating element 221, the heating effect is better, meanwhile, motor 215 starts to order about (mixing) shaft 216 and stirring leaf 217 rotatory, stirring leaf 217 is rotatory can realize stirring the hot-air in heating tank 211, make the hot-air in heating tank 211 heated more even, heating efficiency obtains improving.

As shown in fig. 8-14, the thermostatic bath 300 includes an outer bath shell 301, the outer bath shell 301 has openings at its upper and lower ends, an upper bath cover 305 is installed at the upper opening end in a matching manner, a lower bath cover 311 is installed at the lower opening end in a matching manner, an inner bath shell 304 is coaxially installed in the outer bath shell 301, and the inner bath shell 304 divides the inner cavity of the outer bath shell 301 into an outer chamber and an inner chamber which are not communicated with each other.

The outer wall of the outer tank shell 301 is provided with a nozzle 302 and a nozzle 303, the nozzle 302 is close to a lower tank cover 311, the nozzle 303 is close to an upper tank cover 305, a pipeline group is arranged among the nozzle 302, the bottom of the inner chamber and the constant temperature tank 212 to realize communication, concretely, the pipeline group comprises a three-way pipe 213, the three-way pipe 213 is realized in the prior art and is provided with three pipe orifices, one pipe orifice is communicated with the constant temperature tank 212, one pipe orifice is communicated with the nozzle 302 through a seventh pipeline 222, one pipe orifice is communicated with the bottom of the inner chamber through an eighth pipeline 223, the seventh pipeline 222 is provided with a second electromagnetic valve, and the eighth pipeline 223 is provided with a third electromagnetic valve; solenoid valve two or solenoid valve three is opened and the hot air in the thermostatic tank 212 can flow either towards the outer chamber through conduit seven 222 or towards the inner chamber through conduit eight 223.

An annular shell 307 which is annular and is open at the lower end and closed at the upper end is arranged on the upper end surface of the upper groove cover 305, an exhaust nozzle 308 is arranged on the outer wall of the annular shell 307, an exhaust hole 306 for communicating the inner chamber with the annular shell 307 is arranged on the upper groove cover 305, a fifth electromagnetic valve is arranged on the exhaust nozzle 308, a fourth electromagnetic valve is arranged on the outlet 303, and a second thermometer is arranged in the outer chamber; when the temperature in the outer chamber is less than the minimum value of presetting the temperature range, solenoid valve four and solenoid valve two are opened, change the hot-air in the outer chamber, and after the outer chamber was changed, solenoid valve two and solenoid valve four were closed, and solenoid valve three and solenoid valve five were opened, change the hot-air in the inner chamber, and its meaning lies in: 1. the outer chamber is subjected to heat exchange with the external air through the outer tank shell 301 to generate temperature drop, and the hot air in the inner chamber is subjected to heat exchange with the air in the outer chamber through the inner tank shell 304 to generate temperature drop, so that at the same time, the temperature of the hot air in the outer chamber is lower than that of the hot air in the inner chamber, therefore, the second thermometer is arranged in the outer chamber and senses the temperature drop in the outer chamber to send a signal to replace the hot air, so that the temperature sensing is more sensitive, the temperature fluctuation of the hot air in the inner chamber is smaller, and the temperature of the inner chamber is the ambient temperature of the viscometer, so that the viscometer can be in a preset temperature environment with a smaller temperature fluctuation range, and the viscosity measurement result is more accurate; 2. carry out the hot-air change to outer cavity earlier, carry out the hot-air change to inner cavity again, its meaning lies in, in inner cavity hot-air change process, the temperature of outer cavity is first one step changed, and then make inner cavity be in presetting the temperature value environment, if not, interior, outer cavity is heat exchange air more together or inner cavity is first one step change hot-air, then in the hot-air change process, because still there is old hot-air that the temperature descends in the outer cavity, so the air temperature in the outer cavity will be less than presetting the temperature value, namely the ambient temperature around the inner cavity does not reach and presets the temperature value, so, in the hot-air change process of inner cavity, there is the difference in temperature between the inside and outside cavity, the temperature will fluctuate, be unfavorable for the hot-air change of inner cavity.

As shown in fig. 11, the mounting hole has been seted up to the terminal surface of upper tank cover 305, and viscometer support 500 is detachably installed in the mounting hole, and is concrete, and the outer wall of viscometer support 500 is provided with rubber to when the viscometer was placed on viscometer support 500, the junction of viscometer and viscometer support 500 keeps sealed cooperation, fills in the mounting hole with viscometer support 500 again, keeps sealed cooperation between viscometer support 500 and the mounting hole, and then realizes that the viscometer puts into the inner chamber of constant temperature bath 300, for example: the capillary viscometer has two tubes, and therefore, the viscometer holder 500 is made of a hard rubber material, and two insertion tubes are provided thereon, and the insertion tubes are also made of a hard rubber material, and after the capillary viscometer is filled with a fluid, i.e., lubricating oil, the two tubes of the capillary viscometer are inserted into the insertion tubes from the bottom up, and then the viscometer holder 500 is inserted into the mounting hole, and in addition thereto, the viscometer holder 500 can be fixedly mounted in the mounting hole, and the viscometer is fixedly mounted on the viscometer holder 500, and then, as shown in fig. 8, the fluid, i.e., lubricating oil, is injected into the viscometer by the cooperation of the oil pump 400 and the oil tube 401.

Further, as shown in fig. 9 and 12, a base 309 is installed at the bottom of the inner chamber, a top seat is disposed at the top, a plurality of guide plates 310 are distributed between the base 309 and the top seat along a vertical direction in an array manner, the guide plates 310 are in an annular plate shape coaxially arranged with the inner chamber, scrapers extend around an outer circumferential surface of each guide plate 310 in the same axial direction, each scraper is in a table plate shape, a horizontal cross-sectional area of each scraper decreases from bottom to top along the vertical direction, the plurality of guide plates 310 are assembled and connected by reinforcing ribs disposed between the base 309 and the top seat, in the plurality of scrapers, a projection distance between bottom ends of two adjacent scrapers in the horizontal direction is a fixed value, and the mounting holes are coaxially located inside the guide plates 310, that is, as shown in fig. 9, the viscometer is coaxially located inside the guide plates 310.

The meaning of the method is that when hot air flows towards the inner chamber, the flow direction of the hot air flows from bottom to top along the vertical direction, in the flowing process, the hot air is continuously guided by the scrapers to be divided, then the hot air flows towards the viscometer along the horizontal direction under the guidance of the guide plates 310, and because the projection distance between the bottom ends of the scrapers and the bottom ends of the adjacent scrapers is a fixed value, and the plurality of guide plates 310 are distributed in an array manner along the vertical direction, the guide plates 310 are matched with the scrapers, so that the hot air is uniformly divided to flow towards the viscometer, even if the viscometer is wrapped by the uniformly distributed hot air, the ambient temperature of the viscometer is more balanced, the viscometer is located in the thermostatic bath 300, and a stable preset temperature value is supplied by the thermostatic bath 300, otherwise, the hot air simply flows from bottom to top along the vertical direction, the distribution of the hot air in the inner chamber is not uniform, the viscometer is not wrapped by the uniformly distributed hot air, and the thermostatic environment supplied by the thermostatic bath 300 has a poor effect.

Further, as shown in fig. 9 and fig. 12 to fig. 14, an air inlet nozzle 312 is disposed in the hollow and outer circular surface of the lower slot cover 311, the air inlet nozzle 312 is communicated with the duct eight 223, a second motor 315 is mounted at the bottom of the base 309, an output end of the second motor 315 is coaxially and vertically mounted with an output body 313 downward, a rotating shaft 314 extending into the lower slot cover 311 is coaxially mounted in the hollow and bottom of the output body 313 downward, an air inlet hole 316 communicated with the output body 313 is disposed in the hollow and outer circular surface of the rotating shaft 314, a plurality of air outlets 317 are arranged in an array on the upper end surface of the output body 313 along the circumferential direction, and the upper and lower ends of the air outlets 317 are open and are communicated with the output body 313.

The hot air flows into the inner cavity sequentially through the pipe eight 223, the air inlet nozzle 312, the lower groove cover 311, the rotating shaft 314, the air inlet hole 316, the output body 313 and the gas outlet 317, meanwhile, the motor two 315 drives the output body 313 to rotate, the hot air vertically flows upwards in a circular ring shape in the inner cavity, if the hot air does not flow upwards in the inner cavity in a cylindrical shape, namely a bundle of air flows upwards, even if a plurality of communication positions are arranged between the pipe eight 223 and the inner cavity, the amount of the hot air between the area of the inner cavity between two adjacent communication positions and the area of the communication positions is different, so that the hot air is unevenly distributed in the inner cavity, and the cooperation of the guide plate 310 and the scraper plate leads the air flow vertically upwards to be evenly divided into divided flows flowing in the horizontal direction and distributed flows in the vertical direction, so that the amount of the hot air between the area of the inner cavity between two adjacent communication positions and the area of the communication positions is different, the amount of the hot air between the area of the two adjacent communication positions is different, and the arrangement of the motor two 313 and the gas outlet 317 is not solved.

Further, as shown in fig. 3 and 8, the mounting frame 101 is provided with a gas storage tank 205 and a second air pump 206, a third pipeline 207 and a fourth pipeline 208 are arranged between the gas inlet end, the outlet 303 and the exhaust nozzle 308 of the second air pump 206, specifically, the third pipeline 207 is arranged between the gas inlet end and the outlet 303 of the second air pump 206, the fourth pipeline 208 is arranged between the third pipeline 207 and the exhaust nozzle 308, the gas outlet end of the second air pump 206 is communicated with the gas storage tank 205 through a fifth pipeline 209, the first pipeline 202 is communicated with the gas storage tank 205 through a sixth pipeline 210, the first pipeline 202 is provided with a sixth electromagnetic valve, and the sixth pipeline 210 is provided with a seventh electromagnetic valve.

The significance is that when the inner chamber and the outer chamber of the thermostatic bath 300 regularly exchange heat air, old hot air with the temperature reduced to be lower than the minimum value of the preset temperature value range respectively flows into the air pump II 206 through the pipeline IV 208 or the pipeline III 207 and flows into the air storage tank 205 through the pipeline V209, the significance is that in the process that the air pump I201 supplies air to the heating tank 211, the electromagnetic valve VII can be opened, the electromagnetic valve VI is closed, the old hot air in the air storage tank 205 is sucked into the heating tank 211 to be heated, the old hot air is recycled, the energy utilization rate is improved, the energy consumption is reduced, when the old hot air does not exist in the air storage tank 205, the electromagnetic valve VII is closed, the electromagnetic valve VI is opened, and the external air is directly sucked to be supplied to the heating tank 211.

It should be noted that, in the present invention, the outer walls of the pipe and the tank are both provided with insulating layers, and the thermostatic bath 300 is made of transparent material, such as glass.

The working principle of the invention is as follows:

1. the heating unit operates to keep the hot air in the transit unit at a preset temperature value at all times: the first air pump 201 operates to pump air into the heating tank 211 for heating, the first electromagnetic valve is opened, the hot air in the heating tank 211 flows towards the interior of the constant temperature tank 212, except for the first time of supplying the hot air with the preset temperature value towards the interior of the constant temperature tank 212, the temperature of the hot air supplied by the heating tank 211 at the back is larger than the preset temperature value, therefore, in the process of storing the hot air in the constant temperature tank 212, the first thermometer monitors the temperature in the constant temperature tank 212 in real time, when the temperature is lower than the preset value, the first electromagnetic valve is opened, the hot air in the heating tank 211 rapidly flows towards the interior of the constant temperature tank 212, the temperature in the constant temperature tank 212 rises to restore to the preset value, and the time spent by the hot air in the constant temperature tank 212 rising to restore to the preset temperature value is very short due to the fast gas flow, namely, the hot air in the constant temperature tank 212 can be regarded as being constantly kept at the preset temperature value;

2. after the viscometer filled with lubricating oil is placed in the thermostatic bath 300, firstly, the electromagnetic valve four and the electromagnetic valve two are opened, the hot air in the thermostatic bath 212 flows into the outer chamber of the thermostatic bath 300 through the three-way pipe 213, the pipeline seven 222 and the inlet nozzle 302 in sequence, the air in the outer chamber flows into the air storage tank 205 through the outlet nozzle 303, the pipeline three 207 and the pipeline five 209 until the outer chamber is filled with the hot air with the preset temperature value, after the environmental temperature of the outer chamber is in the preset temperature value, the electromagnetic valve four and the electromagnetic valve two are closed, the electromagnetic valve three and the electromagnetic valve five are opened, the hot air in the thermostatic bath 212 flows into the inner chamber through the three-way pipe 213, the pipeline eight 223, the air inlet nozzle 312, the lower bath cover 311, the rotating shaft 314, the air inlet hole 316, the output body 313 and the outlet gas 317 in sequence, the second motor 315 drives the output body 313 to rotate, and the second motor and the output body are matched to enable hot air to flow upwards vertically in an annular shape in the inner cavity, namely, the hot air is uniformly distributed in the inner cavity along the circumferential direction and flows upwards vertically, and in the process that the hot air flows upwards vertically, the hot air is continuously guided and divided by the scrapers and then flows towards the viscometer along the horizontal direction under the guidance of the guide plates 310;

when the ambient temperature in the second sensing outer cavity of the thermometer is lower than the lowest value of the preset temperature range, the operation is repeated, hot air is replaced, and the viscometer is always in an environment with small temperature fluctuation.

It should be noted that, in the above process, the preset value refers to a value of an ambient temperature at which the viscometer needs to be located in the viscosity measurement process, regardless of an aqueous medium in the prior art or an air medium in the present application, heat of the aqueous medium or the air medium is continuously emitted outwards, and the temperature is continuously decreased, so that the ambient temperature at which the viscometer is located in the actual viscosity measurement process may not be a constant fixed value but a range value, and the preset temperature range described in the present application refers to the range value.

In addition, a camera can be arranged in the thermostatic bath 300, the camera shoots the fluid in the viscometer, namely, the video image of the downward slippage of the lubricating oil, and the video image is displayed on the display screen 102 for experimenters to observe in an amplification way, and in addition, the result of relevant data such as the time for detecting the downward slippage of the lubricating oil and the like can also be sent to the display screen 102, and the result and the viscosity of the lubricating oil calculated by a preset program are recorded and displayed on the display disc 102 for the experimenters to watch.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (9)

1. The utility model provides a viscosity apparatus for lubricating oil production, includes capillary viscometer, shell body (100) and sets up mounting bracket (101) in shell body (100), its characterized in that: the mounting rack (101) is provided with a constant temperature device (200) and a constant temperature groove (300), the constant temperature device (200) is used for keeping the temperature in the constant temperature groove (300) at a preset value, a constant temperature medium is gas, and the capillary viscometer is used for being inserted into the constant temperature groove (300) and measuring the viscosity of lubricating oil injected into the mounting rack.

2. The viscometer for lubricating oil production according to claim 1, characterized in that: the constant temperature device (200) comprises a heating unit and a transfer unit, the heating unit is used for heating air and drawing the heated hot air to flow towards the transfer unit, a first thermometer is arranged in the transfer unit, and the transfer unit is used for drawing the hot air to flow towards the constant temperature groove (300).

3. The viscometer for lubricating oil production according to claim 2, characterized in that: the heating unit comprises a first air pump (201) and a heating tank (211), a first pipeline (202) is arranged at the air inlet end of the first air pump (201), a second pipeline (203) is arranged at the air outlet end, the second pipeline (203) is communicated with the heating tank (211), a connecting pipe (214) is arranged at the top of the heating tank (211), the top end of the connecting pipe (214) extends into a constant temperature tank (212) in the transfer unit, a first electromagnetic valve is arranged on the connecting pipe (214), and a first thermometer is arranged in the constant temperature tank (212).

4. The apparatus according to claim 3, wherein: the bottom of heating jar (211) is provided with motor one (215), the coaxial vertical up of output of motor one (215) is provided with (mixing) shaft (216), the top of (mixing) shaft (216) stretches into in heating jar (211) and coaxial arrangement has stirring leaf (217), the inside cavity and both intercommunication of stirring leaf (217) and (mixing) shaft (216), be provided with heating element (221) in stirring leaf (217), be provided with on stirring leaf (217) and be used for carminative output hole (219), pipeline two (203) are connected and are provided with input hole (218) that are used for with rotary joint (204) intercommunication on (mixing) shaft (216) through rotary joint (204).

5. The apparatus according to claim 3, wherein: the thermostatic bath (300) comprises an outer bath shell (301), the upper end and the lower end of the outer bath shell (301) are open, an upper bath cover (305) is installed at the upper open end in a matched mode, a lower bath cover (311) is installed at the lower open end in a matched mode, an inner bath shell (304) is further coaxially installed in the outer bath shell (301), the inner bath shell (304) divides an inner cavity of the outer bath shell (301) into an outer chamber and an inner chamber which are not communicated with each other, a nozzle (302) and a nozzle (303) are arranged on the outer wall of the outer bath shell (301), a three-way pipe (213) is arranged among the nozzle (302), the bottom of the inner chamber and the thermostatic bath (212), one nozzle of the three-way pipe (213) is communicated with the thermostatic bath (212), one nozzle is communicated with the nozzle (302) through a seven (222) pipeline, one nozzle is communicated with the bottom of the inner chamber through an eight (223) pipeline, a second electromagnetic valve is arranged on the seven (222), and a third electromagnetic valve is arranged on the eight (223) pipeline; an annular shell (307) which is annular and is provided with an opening at the lower end and a closed upper end is arranged on the upper end face of the upper groove cover (305), an exhaust nozzle (308) is arranged on the outer wall of the annular shell (307), an exhaust hole (306) for communicating the inner chamber with the annular shell (307) is arranged on the upper groove cover (305), a fifth electromagnetic valve is arranged on the exhaust nozzle (308), a fourth electromagnetic valve is arranged on the outlet nozzle (303), and a second thermometer is arranged in the outer chamber.

6. The apparatus according to claim 5, wherein: mounting holes are formed in the end face of the upper groove cover (305), a viscometer bracket (500) used for mounting a capillary viscometer is arranged in the mounting holes, and the capillary viscometer and the viscometer bracket (500) and the mounting holes are in sealing fit.

7. The apparatus according to claim 6, wherein: base (309) are installed to the bottom of inner chamber, the top is provided with the footstock, it has a plurality of guide boards (310) to distribute along vertical direction array between base (309) and the footstock, guide board (310) are the annular plate shape of arranging with inner chamber is coaxial, the outer disc of guide board (310) extends all around with the axial has the scraper blade, the scraper blade is the platform shape plate shape and horizontal cross sectional area and descends progressively by supreme down, a plurality of guide boards (310) realize assembly connection through the strengthening rib that sets up between base (309) and footstock, and in a plurality of scraper blades, projection distance on the horizontal direction between the bottom of two adjacent scraper blades is the definite value.

8. The apparatus according to claim 6, wherein: the inside cavity and the excircle face of lower groove cover (311) are provided with suction nozzle (312), suction nozzle (312) and pipeline eight (223) intercommunication, motor two (315) are installed to the bottom of base (309), output body (313) are installed to the coaxial vertical downward of output end of motor two (315), pivot (314) in stretching into lower groove cover (311) are installed to the inside cavity and the coaxial downward in bottom of output body (313), the inside cavity and the excircle face of pivot (314) are provided with inlet port (316) with output body (313) intercommunication, the up end of output body (313) is provided with a plurality of gaseous (317) of going out along the circumferencial direction array, the upper and lower both ends opening of gas (317) and with output body (313) intercommunication each other.

9. The apparatus according to claim 6, wherein: be provided with gas holder (205) and air pump two (206) on mounting bracket (101), be provided with pipeline three (207) between the inlet end of air pump two (206) and delivery nozzle (303), be provided with pipeline four (208) between pipeline three (207) and exhaust nozzle (308), realize the intercommunication through pipeline five (209) between the end of giving vent to anger of air pump two (206) and gas holder (205), realize the intercommunication through pipeline six (210) between pipeline one (202) and gas holder (205), be provided with solenoid valve six on pipeline one (202), be provided with solenoid valve seven on pipeline six (210).

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