Oil analysis instrument

Abstract

The present application provides an oil analyzer, comprising a shell, a sample storage module, a detection chamber, a near-infrared spectrum analysis module, a sampling module and a temperature adjusting module. The shell has a first cavity, when multiple oil samples need to be detected, the multiple samples can be simultaneously accommodated in the first cavity through a sample support and a sample tube, and the first cavity is refrigerated or heated through the temperature adjusting module, so that the first cavity is at the same temperature as the detection chamber. The oil analyzer provided by the present application can perform constant temperature treatment on the samples in advance, so that the temperature of the samples reaches a stable state when the samples are temporarily stored in the first cavity. In this way, when detection is performed, the samples first enter a cuvette through the sampling module, and then the cuvette is moved to the detection chamber through the first telescopic rod. After the samples enter the detection chamber, they no longer need to wait, and the near-infrared spectrum analysis module can directly perform spectrum analysis on the samples, eliminating the waiting time and improving the detection efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of oil analysis, and particularly relates to an oil analyzer. BACKGROUND

[0002] The oil analyzer is a spectral analysis instrument based on near-infrared transmission detection technology, which can accurately analyze and rapidly screen liquid oil products and can monitor and analyze various parameters of oil products such as gasoline and diesel oil, and has a wide application in the fields of petrochemical industry, quality inspection system and scientific research.

[0003] The oil analyzer has a high requirement for the temperature of a sample during use, and the accuracy of a detection result will be affected if the sample temperature is too high or too low. In the prior art, the oil analyzer needs to be operated according to the steps of "loading sample-sample constant temperature-measuring-taking out sample" during use, a sample is manually loaded into a cuvette (volume about 3-5 ml), then the cuvette is placed in a detection chamber (sample cell) to wait for a period of time, so that the sample temperature gradually becomes consistent with the temperature of the detection chamber (usually the set temperature of the detection chamber is 25 DEG C), after the sample is constant and stable, a near-infrared spectrum analysis module is started to measure, and after the measurement is completed, the cuvette loaded with the sample is taken out, and the detection and analysis of the sample are completed.

[0004] The oil analyzer in the prior art needs to place the sample in the detection chamber to wait, and then measure after the sample temperature is stable, usually needs to wait for 3-5 minutes, and when multiple samples need to be detected, the accumulated waiting time is too long, and the detection efficiency is low. SUMMARY

[0005] The application provides an oil analyzer, which aims to solve the problem that the oil analyzer in the prior art needs to place the sample in the detection chamber to wait, and then measure after the sample temperature is stable, usually needs to wait for 3-5 minutes, and when multiple samples need to be detected, the accumulated waiting time is too long, and the detection efficiency is low.

[0006] To achieve the above object, the technical scheme adopted by the application is:

[0007] The application provides an oil analyzer, which comprises:

[0008] A shell, the shell has a first chamber and a second chamber located below the first chamber, and a puncture passage is formed in the bottom of the first chamber and communicates with the second chamber;

[0009] A sample storage module, comprising a sample support accommodated in the first chamber and a plurality of sample tubes, the sample support has a plurality of accommodation grooves arranged along a first horizontal direction, and the plurality of sample tubes are respectively accommodated in the corresponding accommodation grooves, the bottom of each accommodation groove is provided with a puncture hole, and the plurality of puncture holes respectively communicate with the puncture passage;

[0010] a detection chamber arranged in the second chamber, a side wall of the detection chamber being provided with an incident light hole and an emission light hole, and the side wall of the detection chamber being provided with a sample feeding port along a first horizontal direction;

[0011] a near-infrared spectrum analysis module including an emission unit arranged at the incident light hole, a receiving unit arranged at the emission light hole, and a processor;

[0012] a sampling module arranged in the second chamber, including a first telescopic rod arranged along the first horizontal direction and facing the sample feeding port, a second telescopic rod and a cuvette being respectively arranged at telescopic ends of the first telescopic rod, a telescopic end of the second telescopic rod being vertically upward and connected with a puncture unit, and the puncture unit being arranged above the cuvette; and

[0013] a temperature regulating module including two refrigeration units respectively arranged in the first chamber and the detection chamber, and two heating units respectively arranged in the first chamber and the detection chamber.

[0014] In a possible implementation, the shell is provided with a track along the first horizontal direction, one end of the track being accommodated in the first chamber, the first chamber being provided with a sample feeding port through which the track passes, and the track being in sliding cooperation with the sample holder;

[0015] The sample storage module further includes a cover plate and a third driving member, the cover plate being vertically slidably arranged at the sample feeding port, and the third driving member being configured to drive the cover plate to move.

[0016] In a possible implementation, the sample holder has a plurality of accommodation grooves arranged perpendicularly to the first horizontal direction, and the oil product analyzer further includes a sample feeding module, the sample feeding module including fourth telescopic rods arranged perpendicularly to the first horizontal direction, two fourth telescopic rods being oppositely arranged at two sides of the first chamber, telescopic ends of the fourth telescopic rods facing the first chamber and being connected with a first push plate, and the first push plate being in abutment with the sample holder.

[0017] In a possible implementation, the sample feeding module further includes a second push plate arranged above the track, and a fifth driving member configured to drive the second push plate to reciprocally move along the first horizontal direction.

[0018] In a possible implementation, the sample holder includes a plurality of holder monomers arranged along the first horizontal direction, each of the holder monomers has a plurality of accommodation grooves arranged perpendicularly to the first horizontal direction, and adjacent holder monomers are detachably connected.

[0019] In a possible implementation, the sample tube comprises a tube body and a cover, the tube body has two inner cavities, the two inner cavities are in communication at the upper part, one of the inner cavities is provided with an oil inlet at the top, the oil inlet is in sealing cooperation with the cover, and the other inner cavity is provided with a puncture film at the bottom, the puncture film corresponds to the position of the puncture hole.

[0020] In a possible implementation, the oil product analyzer further comprises a rotating table arranged in the second cavity, the rotating table is arranged corresponding to the sample inlet, and the rotating table is further provided with a cleaning module away from the detection chamber;

[0021] The number of the sampling modules is two, the two sampling modules are oppositely arranged on the rotating table, the rotating table can drive the two sampling modules to rotate, so that one of the sampling modules is located below the sample storage module, and the other sampling module is located below the cleaning module;

[0022] The cleaning module comprises a constant-temperature rinsing unit and a constant-temperature air drying unit, the constant-temperature rinsing unit is used for rinsing the puncture unit and the cuvette, and the constant-temperature air drying unit is used for air drying the puncture unit and the cuvette after rinsing.

[0023] In a possible implementation, the cuvette is rotatably arranged at the telescopic end of the first telescopic rod, and the telescopic end of the first telescopic rod is further provided with a sixth driving member, the sixth driving member is used for driving the cuvette to rotate around an axis parallel to the first horizontal direction.

[0024] In a possible implementation, the puncture unit comprises a puncture needle arranged at the telescopic end of the first telescopic rod in the vertical direction, and a liquid pump, the puncture needle has an upward pointed tip and a hollow liquid channel, the liquid inlet end of the liquid pump is in communication with the liquid channel, and the liquid outlet end of the liquid pump is located above the cuvette.

[0025] In a possible implementation, the oil product analyzer further comprises a leveling module, the leveling module comprises a plurality of leveling pads arranged at the bottom of the shell, and the leveling pads have screw rods in threaded connection with the shell.

[0026] Compared with the prior art, the oil product analyzer provided by the present application has the following beneficial effects:

[0027] The oil product analyzer provided by the application has a first cavity, when multiple oil product samples need to be detected, the multiple samples can be simultaneously accommodated in the first cavity through a sample support and a sample tube, and the first cavity is refrigerated or heated through a temperature adjusting module, so that the first cavity is at the same temperature as the detection chamber. The oil product analyzer provided by the application can pre-heat the samples through the first cavity, so that the temperature of the samples reaches a stable state when the samples are temporarily stored in the first cavity. In this way, when detection is performed, the samples first enter the cuvette through the sampling module, and then the cuvette is moved to the detection chamber through the first telescopic rod, so that the samples do not need to wait after entering the detection chamber, and the near-infrared spectrum analysis module can directly perform spectrum analysis on the samples, thereby eliminating the waiting time and improving the detection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 A structure schematic diagram of the oil product analyzer provided by the embodiment of the application is provided.

[0029] Figure 2 A structure schematic diagram of the track and the sample storage module in the oil product analyzer provided by the embodiment of the application is provided.

[0030] Figure 3 An internal sectional view of the track and the sample storage module in the oil product analyzer provided by the embodiment of the application is provided.

[0031] Figure 4 A sectional view in the A-A direction is provided. Figure 3

[0032] Figure 5 A structure schematic diagram of the sample tube in the oil product analyzer provided by the embodiment of the application is provided.

[0033] Figure 6 A structure schematic diagram of the sample support and the sample tube in the oil product analyzer provided by the embodiment of the application is provided.

[0034] Figure 7 An internal structure schematic diagram of the oil product analyzer provided by the embodiment of the application is provided.

[0035] Figure 8 A sectional view in the B-B direction is provided. Figure 7

[0036] Explanation of reference signs:

[0037] 1, oil product analyzer;

[0038] 10, shell; 11, track; 12, operation panel; 13, leveling pad; 14, first cavity; 15, second cavity; 16, puncture channel;

[0039] ​​20, sample storage module; 21, sample holder; 211, holder unit; 212, puncture hole; 22, sample tube; 221, tube body; 222, cover; 223, puncture membrane; 23, cover plate; 24, third driving member;

[0040] 30, detection chamber; 31, incident light hole; 32, emergent light hole; 33, sample feeding port;

[0041] 40, sample taking module; 41, first telescopic rod; 42, second telescopic rod; 43, cuvette; 44, puncture unit; 45, sixth driving member; 46, rotary table;

[0042] 50, temperature adjusting module;

[0043] 60, sample feeding module; 61, fourth telescopic rod; 62, first push plate; 63, fifth driving member; 64, second push plate;

[0044] 70, cleaning module; DETAILED DESCRIPTION

[0045] In order to make the technical problems to be solved by the present application, technical solutions and beneficial effects clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0046] It should be noted that when an element is referred to as being "fixed", "secured" or "attached" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected", "coupled", or "attached" to another element, it can be directly connected to the other element or intervening elements can be present. When an element is referred to as being "positioned" or "disposed" on another element, it can be directly on the other element or intervening elements can be present. "A plurality" refers to two or more. "At least one" refers to one or more. "Several" refers to one or more.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0048] Please refer to Figures 1 to 8 , the oil analyzer 1 provided by the embodiments of the present application will be described below.

[0049] Please refer to Figures 1 to 4 , Figure 7 and Figure 8This invention provides an oil analyzer 1, comprising a housing 10, a sample storage module 20, a detection chamber 30, a near-infrared spectroscopy analysis module, a sampling module 40, and a temperature control module 50. The housing 10 has a first chamber 14 and a second chamber 15 located below the first chamber 14. The bottom of the first chamber 14 has a puncture channel 16 communicating with the second chamber 15. The sample storage module 20 includes a sample holder 21 housed in the first chamber 14 and multiple sample tubes 22. The sample holder 21 has multiple receiving slots arranged along a first horizontal direction. The multiple sample tubes 22 are respectively housed in corresponding receiving slots. A puncture hole 212 is opened at the bottom of each receiving slot, and the multiple puncture holes 212 communicate with the puncture channel 16. One puncture channel 16 is arranged along the first horizontal direction, and one puncture channel 16 communicates with multiple puncture holes 212 simultaneously. The detection chamber 30 is located in the second chamber 15, and the side wall of the detection chamber 30 has an incident light aperture 31 and... The light emission aperture 32 and the side wall of the detection chamber 30 are provided with a sample delivery port 33 along the first horizontal direction; the near-infrared spectroscopy analysis module includes an emitting unit located at the light emission aperture 31, a receiving unit located at the light emission aperture 32, and a processor; the sampling module 40 is located in the second chamber 15 and includes a first telescopic rod 41 arranged along the first horizontal direction and facing the sample delivery port 33, the telescopic ends of the first telescopic rod 41 are respectively provided with a second telescopic rod 42 and a cuvette 43, the telescopic ends of the second telescopic rod 42 are vertically upward and connected to a puncture unit 44, the puncture unit 44 is located above the cuvette 43; the temperature control module 50 includes two cooling units respectively located in the first chamber 14 and the detection chamber 30, and two heating units respectively located in the first chamber 14 and the detection chamber 30.

[0050] Compared with the prior art, the beneficial effects of the oil analyzer 1 provided in this embodiment of the invention are:

[0051] The oil analyzer 1 provided in this embodiment of the invention has a first chamber 14 in its outer casing 10. When multiple oil samples need to be tested, the multiple samples can be simultaneously placed in the first chamber 14 through the sample holder 21 and the sample tube 22. The first chamber 14 is cooled or heated by the temperature control module 50 to maintain the same temperature as the detection chamber 30. This allows the oil analyzer 1 provided in this embodiment of the invention to pre-temperature-controlled the samples, ensuring that the sample temperature reaches a stable state during temporary storage in the first chamber 14. With this configuration, during testing, the sample first enters the cuvette 43 through the sampling module 40, and then the cuvette 43 is moved to the detection chamber 30 by the first telescopic rod 41. After the sample enters the detection chamber 30, there is no need to wait; the near-infrared spectroscopy analysis module can directly perform spectral analysis on the sample, eliminating waiting time and improving detection efficiency.

[0052] The shell 10 in the embodiment of the present application has a first chamber 14 and a second chamber 15, wherein the first chamber 14 is used for temporarily storing samples and preheating or precooling the samples, so that the temperature of the samples gradually becomes consistent with the temperature of the detection chamber 30 in the first chamber 14. The temperature adjusting module 50 includes a refrigeration unit and a heating unit. The temperature is detected by a temperature sensor. When the set temperature (such as 25℃) required by the first chamber 14 and the detection chamber 30 is higher than the ambient temperature, the heating unit needs to provide heat. When the set temperature is less than the ambient temperature, the refrigeration unit needs to be cooled. In order to improve the heat insulation effect, a switch door can be arranged at the entrance of the detection chamber 30 and the first chamber 14, respectively, which can isolate the heat exchange with the outside after being closed.

[0053] The structure of the refrigeration unit and the refrigeration unit is not limited, for example, the heating unit can be an electric heating wire which can generate heat after being electrified. The refrigeration unit can be a semiconductor refrigeration mechanism which can refrigerate after being electrified. The heating unit and the refrigeration unit can directly refrigerate or heat the detection chamber 30 or the first chamber 14, or nitrogen or other gas can be used as a carrier, the temperature of the nitrogen or other gas is changed by the temperature adjusting module 50, and then the gas is delivered to the first chamber 14 or the detection chamber 30, which can also play a role in adjusting the temperature inside the chamber.

[0054] The sample storage module 20 includes a sample support 21 and a sample tube 22. A plurality of sample tubes 22 can be placed on one sample support 21, that is, a plurality of samples to be detected can be stored in the first chamber 14 at the same time. By arranging the first chamber 14 and the sample storage module 20, batch preheating or precooling of multiple samples can be realized, so that the samples do not need to wait in the detection chamber 30, and the detection efficiency is improved.

[0055] The near-infrared spectrum analysis module includes an emission unit (i.e. a light source), a receiving unit (i.e. a detector), and a processor which can control the operation of the emission unit and the receiving unit. In operation, the cuvette 43 containing the oil sample is transported to the detection chamber 30 by the first telescopic rod 41, the light emitted by the emission unit enters the detection chamber 30 through the incident light hole 31, passes through the cuvette 43 and the sample, and is received by the receiving unit from the exit light hole 32, the receiving unit detects and transmits the signal to the microprocessor, and after a series of operations such as amplification and conversion, the near-infrared spectrum of the oil to be detected is finally obtained. In order to facilitate control, an operation panel 12 can be arranged on the shell 10. The operation panel 12 serves as a human-computer interaction module, which can be a display screen. The operation panel 12 can be used to control the operation of the instrument, and the detection result can also be displayed through the operation panel 12.

[0056] The sampling module 40 is used to transport the plurality of samples in the first chamber 14 to the detection chamber 30 for detection one by one. The sampling module 40 comprises a first telescopic rod 41 arranged along the first horizontal direction, a second telescopic rod 42 arranged on the first telescopic rod 41 and vertically upward, a cuvette 43 detachably arranged on the first telescopic rod 41, and a piercing unit 44 detachably arranged on the second telescopic rod 42. The first telescopic rod 41 can drive the cuvette 43 and the piercing unit 44 to move along the first horizontal direction, so that the piercing unit 44 can reach below different sample tubes 22. The plurality of sample tubes 22 are arranged along the first horizontal direction. When the piercing unit 44 moves to the appropriate position, the second telescopic rod 42 acts to drive the piercing unit 44 to move upward. The sharp end of the piercing unit 44 passes through the piercing channel 16 and the piercing hole 212 to pierce the bottom of the sample tube 22. The liquid sample flows into the cuvette 43 below through the piercing unit 44 to complete sampling. The detection chamber 30 is arranged below the sample storage module 20 and is provided with a sample delivery port 33 facing the telescopic end of the first telescopic rod 41. After sampling is completed, the first telescopic rod 41 acts to move the sampled cuvette 43 along the first horizontal direction to the detection chamber 30, and the sample is detected and analyzed by the near-infrared spectrum analysis module.

[0057] After the sample detection is completed, the cuvette 43 and the piercing unit 44 can be manually removed, and new cuvettes 43 and piercing units 44 can be replaced to avoid contamination between different samples. In order to facilitate the disassembly of the cuvette 43 and the piercing unit 44, the cuvette 43 and the piercing unit 44 can be designed in a detachable mounting form such as plug-in or magnetic connection.

[0058] Please refer to Figures 1 to 4 In some possible embodiments, the shell 10 is provided with a track 11 along the first horizontal direction. One end of the track 11 is accommodated in the first chamber 14. The first chamber 14 is provided with a sample inlet through which the track 11 passes. The track 11 is in sliding cooperation with the sample holder 21. The sample storage module 20 further comprises a cover plate 23 and a third driving member 24. The cover plate 23 is vertically slidably arranged on the sample inlet. The third driving member 24 drives the cover plate 23 to move to realize opening and closing of the sample inlet.

[0059] In the present embodiment, the shell 10 is provided with the track 11. The track 11 is in sliding cooperation with the sample holder 21. Before the sample is put into the first chamber 14, the sample is first loaded into different sample tubes 22 one by one, and then the plurality of sample tubes 22 are inserted into the accommodation grooves of the sample holder 21 respectively. The sample holder 21 and the sample tubes 22 are combined into one body, and then the sample holder 21 is slid into the first chamber 14 through the track 11. The track 11 can limit the sample holder 21 to prevent the sample holder 21 from being tilted, ensure that the piercing hole 212 and the piercing channel 16 are aligned, and ensure that the sampling module 40 can smoothly sample.

[0060] The cover plate 23 is arranged, and the third driving member 24 drives the cover plate 23 to open and close. When the cover plate 23 is opened, the sample support 21 can be taken out of or stored in the first chamber 14. When the cover plate 23 is closed, heat exchange between the first chamber 14 and the outside can be isolated.

[0061] The third driving member 24 is used for driving the cover plate 23 to move. The cover plate 23 can be matched with the sample inlet in a sliding or rotating manner. Correspondingly, the third driving member 24 can be a pneumatic push rod, a motor or the like.

[0062] Please refer to Figure 3 and Figure 4 In some possible embodiments, the sample support 21 has a plurality of accommodation grooves arranged perpendicularly to the first horizontal direction. The oil product analyzer 1 further includes a sample feeding module 60. The sample feeding module 60 includes a fourth telescopic rod 61 arranged perpendicularly to the first horizontal direction. Two fourth telescopic rods 61 are oppositely arranged on two sides of the first chamber 14. The telescopic end of the fourth telescopic rod 61 faces the first chamber 14 and is connected with a first push plate 62. The first push plate 62 abuts against the sample support 21.

[0063] In the embodiment, the sample support 21 is further provided with a plurality of accommodation grooves along the second horizontal direction. The second horizontal direction is perpendicular to the first horizontal direction. The plurality of accommodation grooves on the sample support 21 are arranged in a rectangular manner. In this way, the sample support 21 can store more sample tubes 22, improve the overall space utilization, and make the overall structure more compact.

[0064] In the embodiment, the fourth telescopic rod 61 and the first push plate 62 are arranged. The fourth telescopic rod 61 can push the sample support 21 to move left and right through the first push plate 62. The plurality of sample tubes 22 and the puncture hole 212 arranged along the second horizontal direction can correspond to the puncture channel 16. It is ensured that the sample feeding module 40 can smoothly complete the sampling work of multiple samples. When one of the fourth telescopic rods 61 is elongated, the other fourth telescopic rod 61 on the opposite side is shortened. The fourth telescopic rod 61 can be a pneumatic or electric push rod, which can drive the first push plate 62 to reciprocate along the second horizontal direction.

[0065] Please refer to Figure 2 and Figure 3 In some possible embodiments, the sample feeding module 60 further includes a second push plate 64 arranged above the track 11 and a fifth driving member 63 for driving the second push plate 64 to reciprocate along the first horizontal direction.

[0066] The fifth driving member 63 and the second push plate 64 are arranged, so that the sample holder 21 on the track 11 can be automatically transferred into the first chamber 14. Compared with the manual placement mode, the degree of automation is higher, and the operation is more convenient. The fifth driving member 63 can be a pneumatic push rod, an electric push rod, a screw sliding block mechanism or the like connected with the second push plate 64, and can drive the second push plate 64 to reciprocate along the first horizontal direction.

[0067] In order to further improve the automation and intelligent level, a detection unit can be arranged on the side of the second push plate 64 facing the first chamber 14. The detection unit is used for sensing the position of the sample holder 21 on the track. The detection unit is in communication connection with the fifth driving member 63. The detection unit can be a distance sensor, an ultrasonic sensor, an infrared sensor or the like. When the operator places the sample holder 21 on the track 11, the detection unit detects the sample holder 21 and transmits a signal to the fifth driving member 63. The fifth driving member 63 drives the second push plate 64 to push the sample holder 21 into the first chamber 14.

[0068] Please refer to Figure 3 and Figure 6 In some possible embodiments, the sample holder 21 includes a plurality of holder units 211 arranged along the first horizontal direction. The holder unit 211 has a plurality of accommodation grooves arranged perpendicularly to the first horizontal direction. Adjacent holder units 211 are detachably connected, such as magnetic attraction connection, buckle connection or the like.

[0069] When the number of samples to be detected is large, sample preparation, sample preheating or precooling all need a long time. In the embodiment, the sample holder 21 is divided into a plurality of holder units 211. When used, the prepared samples can be pre-cooled or pre-heated in the first chamber 14 for detection. During this period, the operator can also continue to prepare the remaining samples. The remaining samples are stored in other holder units 211. The plurality of holder units 211 can be sequentially sent into the first chamber 14. The sample preparation, sample preheating or precooling and sample detection can be carried out at the same time, so as to improve the work efficiency.

[0070] Please refer to Figure 5 In some possible embodiments, the sample tube 22 includes a tube body 221 and a cover 222. The tube body 221 has two inner cavities. The upper portions of the two inner cavities are communicated. An oil inlet is formed at the top of one of the inner cavities. The oil inlet is in sealing fit with the cover 222. The other inner cavity is provided with a puncture film 223 at the bottom. The puncture film 223 corresponds to the position of the puncture hole 212.

[0071] The sample tube 22 in the embodiment has two inner cavities, one of which is provided with a puncture film 223 at the bottom. After the puncture unit 44 punctures the puncture film 223, the sample in the inner cavity flows into the cuvette 43 through the puncture unit 44, and the sample in the other inner cavity does not flow out, which can be used as a backup for later storage or repeated tests.

[0072] The embodiment divides the sample tube 22 into two inner cavities, so that when the sample is filled into the sample tube 22, the sample can fill the two inner cavities at the same time, one of which is used for detection, and the other is used as a backup. Sequential filling can achieve two purposes at once.

[0073] Please refer to Figure 7 and Figure 8 In some possible embodiments, the oil analyzer 1 further comprises a rotating table 46 arranged in the second chamber 15, the rotating table 46 is arranged corresponding to the sample inlet 33, the rotating table 46 is arranged on the side of the detection chamber 30 where the sample inlet 33 is arranged, and the side of the rotating table 46 away from the detection chamber 30 is further provided with a cleaning module 70; the number of the sampling modules 40 is two, and the two sampling modules 40 are oppositely arranged on the rotating table 46, so that the rotating table 46 can drive the two sampling modules 40 to rotate, so that one of the sampling modules 40 is located below the sample storage module 20, and the other sampling module 40 is located below the cleaning module 70; the cleaning module 70 comprises a constant-temperature rinsing unit and a constant-temperature air-drying unit, the constant-temperature rinsing unit is used for rinsing the puncture unit 44 and the cuvette 43, and the constant-temperature air-drying unit is used for air-drying the rinsed puncture unit 44 and cuvette 43.

[0074] The oil analyzer 1 in the embodiment has two sampling modules 40, the positions of the two sampling modules 40 are changed by the rotating table 46, and the two sampling modules 40 work alternately, that is, one of the sampling modules 40 is used for sampling, and the other sampling module 40 is used for cleaning. By arranging the cleaning module 70, the puncture unit 44 and the cuvette 43 after sampling can be cleaned and air-dried, and the cleaned puncture unit 44 and cuvette 43 can be used for the next sampling, so that the step of manually replacing the new puncture unit 44 is avoided, and the use is simpler and more convenient.

[0075] The cleaning module 70 comprises a constant-temperature rinsing unit and a constant-temperature air-drying unit, the constant-temperature rinsing unit can spray rinsing liquid, and the constant-temperature air-drying unit can blow dry air, the temperature of the rinsing liquid and the dry air is the same as the set temperature of the detection chamber 30 and the first chamber 14.

[0076] Please refer to Figure 7In some possible embodiments, the cuvette 43 is rotatably arranged at the telescopic end of the first telescopic rod 41, and the telescopic end of the first telescopic rod 41 is further provided with a sixth driving member 45 configured to drive the cuvette 43 to rotate about an axis parallel to the first horizontal direction.

[0077] The sixth driving member 45 in the embodiment can be a motor, which is configured to drive the cuvette 43 to rotate, so that the liquid in the cuvette 43 during flushing can be poured out, and the constant-temperature washing unit and the constant-temperature air-drying unit can perform multi-angle cleaning and air-drying on the cuvette 43, so that the cleaning effect is better, and the cleaning and air-drying time is shortened.

[0078] Please refer to Figure 7 In some possible embodiments, the puncture unit 44 includes a puncture needle arranged at the telescopic end of the first telescopic rod 41 in the vertical direction, and a liquid pump, the puncture needle has a hollow liquid channel with a tip pointing upward, and the liquid inlet of the liquid pump is in communication with the liquid channel, and the liquid outlet of the liquid pump is located above the cuvette 43.

[0079] The puncture unit 44 in the embodiment includes a hollow puncture needle and a liquid pump, the puncture needle is inserted into the sample tube 22 from bottom to top during use, and the liquid pump is configured to suck the sample in liquid state and then deliver the sample into the cuvette 43 below. By arranging the liquid pump, the speed of the sample entering the cuvette 43 can be accelerated.

[0080] Please refer to Figure 1 In some possible embodiments, the oil product analyzer 1 further includes a leveling module, and the leveling module includes a plurality of leveling pads 13 arranged at the bottom of the shell 10, and each leveling pad 13 has a screw rod threadedly connected with the shell 10. By arranging the leveling pads 13, the posture of the shell 10 can be adjusted, so that the shell 10 can be kept horizontal, and the normal work of the oil product analyzer 1 can be ensured.

[0081] It can be understood that the parts in the above embodiments can be freely combined or deleted to form different combined embodiments, and the specific content of each combined embodiment will not be described herein. After the description herein, it can be considered that the present specification has described each combined embodiment, and different combined embodiments can be supported.

[0082] The above merely describes preferred embodiments of the present application, but should not be used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An oil analyzer, characterized in that, include: The outer shell has a first chamber and a second chamber located below the first chamber, and the bottom of the first chamber has a puncture channel communicating with the second chamber; The sample storage module includes a sample holder housed in the first chamber and a plurality of sample tubes. The sample holder has a plurality of receiving slots arranged along a first horizontal direction. The plurality of sample tubes are respectively housed in the corresponding receiving slots. A puncture hole is provided at the bottom of the receiving slot. The plurality of puncture holes are respectively connected to the puncture channel. The detection chamber is located in the second chamber. The side wall of the detection chamber is provided with an entrance light hole and an exit light hole. The side wall of the detection chamber is provided with a sample delivery port along the first horizontal direction. The near-infrared spectroscopy analysis module includes an emitting unit disposed at the incident light aperture, a receiving unit disposed at the exit light aperture, and a processor; The sampling module is located in the second chamber and includes a first telescopic rod arranged along the first horizontal direction and facing the sample delivery port. The telescopic ends of the first telescopic rod are respectively provided with a second telescopic rod and a cuvette. The telescopic end of the second telescopic rod is vertically upward and connected to a puncture unit, which is located above the cuvette. as well as The temperature control module includes two refrigeration units respectively located in the first chamber and the detection chamber, and two heating units respectively located in the first chamber and the detection chamber.

2. The oil analyzer according to claim 1, characterized in that, The outer shell is provided with a track along a first horizontal direction, one end of the track is housed in the first chamber, the first chamber has a sample inlet through which the track passes, and the track is slidably engaged with the sample holder; The sample storage module also includes a cover plate and a third driving component. The cover plate is vertically slidably disposed over the sample inlet, and the third driving component drives the cover plate to move.

3. The oil analyzer according to claim 2, characterized in that, The sample holder has a plurality of receiving slots arranged perpendicular to the first horizontal direction. The oil analyzer also includes a sample delivery module, which includes a fourth telescopic rod arranged perpendicular to the first horizontal direction. Two fourth telescopic rods are arranged opposite each other on both sides of the first chamber. The telescopic ends of the fourth telescopic rods face the first chamber and are connected to a first push plate. The first push plate abuts against the sample holder.

4. The oil analyzer according to claim 3, characterized in that, The sample delivery module also includes a second push plate disposed above the track, and a fifth drive component that drives the second push plate to reciprocate along a first horizontal direction.

5. The oil analyzer according to claim 1, characterized in that, The sample holder includes a plurality of holder units arranged along a first horizontal direction. Each holder unit has a plurality of receiving slots arranged perpendicular to the first horizontal direction, and adjacent holder units are detachably connected.

6. The oil analyzer according to claim 1, characterized in that, The sample tube includes a tube body and a cap. The tube body has two inner cavities that are connected at the top. One of the inner cavities has an oil inlet at the top, which is sealed to the cap. The other inner cavity has a puncture membrane at the bottom, which corresponds to the position of the puncture hole.

7. The oil analyzer according to claim 1, characterized in that, The oil analyzer also includes a turntable located in the second chamber, the turntable being positioned corresponding to the sample inlet, and a cleaning module being provided on the side of the turntable away from the detection chamber; The sampling module is of two types, and the two sampling modules are arranged opposite to each other on the turntable. The turntable can drive the two sampling modules to rotate so that one of the sampling modules is located below the sample storage module and the other sampling module is located below the cleaning module. The cleaning module includes a constant temperature rinsing unit and a constant temperature air drying unit. The constant temperature rinsing unit is used to rinse the puncture unit and the cuvette, and the constant temperature air drying unit is used to air dry the rinsed puncture unit and the cuvette.

8. The oil analyzer according to claim 7, characterized in that, The cuvette is rotatably mounted on the telescopic end of the first telescopic rod, and the telescopic end of the first telescopic rod is also provided with a sixth driving member, which is used to drive the cuvette to rotate around an axis parallel to the first horizontal direction.

9. The oil analyzer according to claim 1, characterized in that, The puncture unit includes a puncture needle vertically disposed at the telescopic end of the first telescopic rod, and a liquid pump. The tip of the puncture needle faces upward and has a hollow liquid channel. The inlet end of the liquid pump is connected to the liquid channel, and the outlet end of the liquid pump is located above the cuvette.

10. The oil analyzer according to claim 1, characterized in that, The oil analyzer also includes a leveling module, which includes a plurality of leveling pads located at the bottom of the housing, each leveling pad having a screw threadedly connected to the housing.

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