Sampling device and sampling system
By designing a sealed and interconnected sampler, the problem of contamination by miscellaneous bacteria during the sampling process of fermentation broth was solved, and the safe storage and accurate detection of fermentation broth were achieved.
Patent Information
- Application Number
- CN202420984546.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-08
AI Technical Summary
Fermentation broth is easily contaminated by other microorganisms during sampling, which affects the accuracy of test results.
Design a sampler including a storage container, an inlet pipe, an outlet pipe, an inlet valve, and an outlet valve. It is connected to the sampling port of the fermenter in a sealed manner to prevent the fermentation broth from being exposed to the air during the sampling process, maintain an anaerobic environment, and reduce contamination by other microorganisms.
It effectively reduces the probability of fermentation broth being contaminated by other microorganisms, maintains the anaerobic environment of the fermentation broth, and ensures the accuracy of test results.
Smart Images
Figure CN222313166U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of experimental devices, and in particular, relates to a sampler and a sampling system. Background Art
[0002] Fermentation technology is widely used, and special chemicals, food and beverages can be produced through fermentation. Fermentation is a complex process, in which there are many changes in intracellular and extracellular components, and the results of these changes ultimately determine whether the fermentation is successful or not. The fermentation process has very strict hygiene requirements and needs to avoid contamination from surrounding bacteria.
[0003] During the fermentation process, the fermentation liquid in the fermentation tank needs to be sampled and tested. Offline testing often requires manual sampling, and then the sample is processed and sent to a special instrument for testing.
[0004] When the fermentation liquid is sampled manually, centrifuge tubes are usually used. During the sampling process, the fermentation liquid is exposed to the air, which can easily cause the fermentation liquid to be contaminated by foreign bacteria, interfere with the test results, and affect the control of the bacterial fermentation environment. Utility Model Content
[0005] The present application aims to solve the technical problem that fermentation liquid is easily contaminated by bacteria during sampling, at least to a certain extent. To this end, the present application provides a sampler and a sampling system.
[0006] In a first aspect, an embodiment of the present application provides a sampler, comprising:
[0007] A storage container having a storage cavity and a first liquid inlet and a first liquid outlet communicated with the storage cavity;
[0008] a liquid inlet pipe having a second liquid inlet and a second liquid outlet in communication with each other, the second liquid outlet being in airtight communication with the first liquid inlet, and the second liquid inlet being used for airtight communication with a sampling port of the fermentation tank;
[0009] a liquid outlet pipe having a third liquid inlet and a third liquid outlet connected to each other, wherein the third liquid inlet is in airtight communication with the first liquid outlet;
[0010] A liquid inlet valve, installed on the liquid inlet pipe;
[0011] A liquid outlet valve is installed on the liquid outlet pipe.
[0012] In some embodiments, the liquid inlet pipe is a hose, and a fastener is sleeved on one end of the liquid inlet pipe close to the second liquid inlet.
[0013] In some embodiments, a heat-insulating layer is provided on the outer surface of the storage container.
[0014] In some embodiments, the lower portion of the storage cavity is conical, and the first liquid outlet is disposed at the lowest point of the storage cavity.
[0015] In some embodiments, the first liquid inlet is higher than the first liquid outlet.
[0016] In some embodiments, the storage container is a transparent storage container, and scale lines are provided on the side wall of the storage container.
[0017] In some embodiments, the storage container is a stainless steel storage container.
[0018] In some embodiments, the sampler further includes a first sealing member, which is detachably connected to the liquid inlet tube to close or open the second liquid inlet.
[0019] In some embodiments, the sampler further includes a second sealing member, which is detachably connected to the liquid outlet pipe to close or open the third liquid outlet.
[0020] In a second aspect, an embodiment of the present application further provides a sampling system, comprising a sample tray and the sampler provided in the first aspect.
[0021] The utility model has at least the following beneficial effects:
[0022] The sampler of the present application includes a storage container, a liquid inlet pipe, a liquid outlet pipe, a liquid inlet valve and a liquid outlet valve. The liquid inlet valve and the liquid outlet valve are respectively installed on the liquid inlet pipe and the liquid outlet pipe, and respectively control the opening and closing of the liquid inlet pipe and the liquid outlet pipe. After such a design, when the sampling operation is performed, the second liquid inlet of the liquid inlet pipe is used to be connected with the sampling port of the fermenter in a closed manner. When the liquid inlet valve is opened, the fermented liquid in the fermenter can enter the storage chamber for storage under the diversion effect of the liquid inlet pipe, and the liquid inlet valve is closed after the sampling is completed. The fermented liquid will not be exposed to the air during and after sampling, which reduces the probability of the fermented liquid being contaminated by bacteria in the air to a certain extent. After closing the liquid inlet valve, the storage chamber is not connected to the external connection, and the anaerobic environment of the fermented liquid is maintained to a certain extent. The use of the sampler of the present application for sampling operation helps to ensure the accuracy of the test results. When the fermented liquid is tested, the fermented liquid can be discharged from the storage chamber by opening the liquid outlet valve, which facilitates the discharge of the fermented liquid in the storage chamber. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0024] Figure 1A schematic diagram of the structure of a sampler in one or more embodiments of the present application is shown.
[0025] Figure 2 A schematic diagram of the structure of a sampling system in one or more embodiments of the present application is shown.
[0026] Figure 3 A schematic diagram of the structure of a sampler connected to a fermentation tank for sampling in one or more embodiments of the present application is shown.
[0027] Figure numerals: 1000 - sampling system, 100 - sampler, 110 - storage container, 111 - storage chamber, 112 - first liquid inlet, 113 - first liquid outlet, 120 - liquid inlet pipe, 121 - second liquid inlet, 122 - second liquid outlet, 130 - liquid outlet pipe, 131 - third liquid inlet, 132 - third liquid outlet, 140 - liquid inlet valve, 150 - liquid outlet valve, 160 - fastener, 170 - first sealing member, 180 - second sealing member, 190 - scale line, 195 - insulation layer, 200 - sample tray, 2000 - fermentation tank, 2100 - sampling port. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.
[0030] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0031] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0032] Fermentation technology is widely used, and special chemicals, food and beverages can be produced through fermentation. Fermentation is a complex process, in which there are many changes in intracellular and extracellular components, and the results of these changes ultimately determine whether the fermentation is successful or not. The fermentation process has very strict hygiene requirements and needs to avoid contamination from surrounding bacteria.
[0033] During the fermentation process, the fermentation liquid in the fermentation tank needs to be sampled and tested. Offline testing often requires manual sampling, and then the sample is processed and sent to a special instrument for testing.
[0034] When the fermentation liquid is sampled manually, centrifuge tubes are usually used. During the sampling process, the fermentation liquid is exposed to the air, which can easily cause the fermentation liquid to be contaminated by foreign bacteria, interfere with the test results, and affect the control of the bacterial fermentation environment.
[0035] In the related art, there is a technical problem that the fermentation liquid is easily contaminated by bacteria during sampling. The embodiment of the present application provides a sampler and a sampling system, which can at least solve the technical problem that the fermentation liquid is easily contaminated by bacteria during sampling to a certain extent.
[0036] The present application is described below with reference to the accompanying drawings and specific embodiments:
[0037] The embodiment of the present application provides a sampler 100. The sampler 100 provided in the embodiment of the present application can isolate the outside air during the sampling process, and can reduce the probability of the fermentation liquid being contaminated by miscellaneous bacteria to a certain extent.
[0038] like Figure 1 As shown, the sampler 100 includes a storage container 110 , a liquid inlet pipe 120 , a liquid outlet pipe 130 , a liquid inlet valve 140 and a liquid outlet valve 150 .
[0039] The storage container 110 has a storage cavity 111 and a first liquid inlet 112 and a first liquid outlet 113 communicated with the storage cavity 111. The storage cavity 111 of the storage container 110 is used to store fermentation liquid. When the sampling operation is performed, the fermentation liquid in the fermentation tank 2000 enters the storage cavity 111 from the first liquid inlet 112 and is temporarily stored in the storage cavity 111. When the detection operation is performed, the fermentation liquid in the storage cavity 111 is discharged from the first liquid outlet 113.
[0040] The liquid inlet pipe 120 has a second liquid inlet 121 and a second liquid outlet 122 that are connected. The second liquid outlet 122 is sealed and connected to the first liquid inlet 112. The second liquid inlet 121 is used to be sealed and connected to the sampling port 2100 of the fermentation tank 2000. The second liquid outlet 122 is sealed and connected to the first liquid inlet 112, so that the fermented liquid can flow from the liquid inlet pipe 120 into the storage container 110, and can prevent the outside air from entering the storage chamber 111 from the connection between the second liquid inlet 121 and the first liquid inlet 112, contaminating the fermented liquid in the storage chamber 111, and reducing the risk of the fermented liquid being contaminated by bacteria. The second liquid inlet 121 is used to be sealed and connected to the sampling port 2100 of the fermentation tank 2000, and can prevent the outside air from entering the liquid inlet pipe 120 from the connection between the second liquid inlet 121 and the sampling port 2100, and contaminating the fermented liquid, thereby reducing the risk of the fermented liquid being contaminated by bacteria.
[0041] The liquid outlet pipe 130 has a third liquid inlet 131 and a third liquid outlet 132 connected to each other, and the third liquid inlet 131 is in airtight communication with the first liquid outlet 113. The third liquid inlet 131 is in airtight communication with the first liquid outlet 113 of the storage container 110, so that the fermented liquid in the storage container 110 can be smoothly discharged into the liquid outlet pipe 130 to avoid leakage, and can prevent external air from entering the storage chamber 111 from the connection between the first liquid outlet 113 and the third liquid inlet 131 to contaminate the fermented liquid in the storage chamber 111, thereby reducing the risk of the fermented liquid being contaminated by miscellaneous bacteria.
[0042] The liquid inlet valve 140 is installed on the liquid inlet pipe 120. The liquid inlet valve 140 is installed on the liquid inlet pipe 120 to control the opening and closing of the liquid inlet pipe 120. When sampling is required, the liquid inlet valve 140 is opened, and the fermented liquid can flow into the storage container 110 through the liquid inlet pipe 120; after the sampling is completed, the liquid inlet valve 140 is closed to prevent the fermented liquid from continuing to flow in, and can prevent the outside air from entering the storage chamber 111 and contaminating the fermented liquid in the storage chamber 111, thereby reducing the risk of the fermented liquid being contaminated by miscellaneous bacteria. In addition, after the sampling is completed and the liquid inlet valve 140 is closed, the storage chamber 111 is not connected to the outside world, which maintains the anaerobic environment of the fermented liquid to a certain extent, helps to ensure the activity of the fermented liquid in the storage chamber 111, and ensures the accuracy of the fermented liquid detection results.
[0043] The liquid outlet valve 150 is installed on the liquid outlet pipe 130. The liquid outlet valve 150 is installed on the liquid outlet pipe 130 to control the opening and closing of the liquid outlet pipe 130. When the fermentation liquid is detected and the fermentation liquid in the storage container 110 needs to be discharged, the liquid outlet valve 150 is opened, and the fermentation liquid can be discharged through the liquid outlet pipe 130.
[0044] In summary, when performing a sampling operation, the second liquid inlet 121 of the liquid inlet pipe 120 is used to be sealed and connected with the sampling port 2100 of the fermentation tank 2000. The liquid inlet valve 140 is opened, and the fermented liquid in the fermentation tank 2000 can be stored in the storage chamber 111 under the diversion effect of the liquid inlet pipe 120. After the sampling is completed, the liquid inlet valve 140 is closed. The fermented liquid will not be exposed to the air during and after sampling, which reduces the probability of the fermented liquid being contaminated by bacteria in the air to a certain extent. After closing the liquid inlet valve 140, the storage chamber 111 is not connected to the outside, and the anaerobic environment of the fermented liquid is maintained to a certain extent. The use of the sampler 100 of the present application for sampling operations helps to ensure the accuracy of the test results. When the fermented liquid is tested, the fermented liquid can be discharged from the storage chamber 111 by opening the liquid outlet valve 150, which facilitates the discharge of the fermented liquid in the storage chamber 111.
[0045] In some embodiments, the liquid inlet pipe 120 is a hose, and a fastener 160 is sleeved on one end of the liquid inlet pipe 120 near the second liquid inlet port 121. The liquid inlet pipe 120 can be made of materials with good elasticity and corrosion resistance, such as silicone, rubber or polytetrafluoroethylene. The liquid inlet pipe 120 adopts a hose design, so that the liquid inlet pipe 120 has a certain elasticity to adapt to sampling ports 2100 of different sizes. In addition, the design of the hose allows the liquid inlet pipe 120 to be bent and deformed, so that the sampler 100 can still be sealed and connected with the sampling port 2100 of the fermenter 2000 when the space is limited. The fastener 160 can be a clamp, a throat clamp, a clamp, etc. The setting of the fastener 160 enhances the stability of the connection with the liquid inlet pipe 120 and the fermenter 2000, and helps to ensure that the second liquid inlet port 121 is sealed and connected with the sampling port 2100. When performing sampling operations, one end of the liquid inlet tube 120 with the second liquid inlet 121 is placed on the sampling nozzle of the fermentation tank 2000 with the sampling port 2100, and then the fastener 160 is tightened so that the liquid inlet tube 120 fits tightly against the sampling nozzle to ensure that the second liquid inlet 121 and the sampling port 2100 are in airtight communication.
[0046] In some embodiments, an insulation layer 195 is disposed on the outer surface of the storage container 110. The insulation layer 195 may be made of foam, glass fiber, aerogel, etc. The design of the insulation layer 195 can reduce the heat loss rate of the fermentation liquid in the storage chamber 111, and can also reduce the influence of the external environment temperature on the temperature of the fermentation liquid to a certain extent, thereby ensuring the activity of the fermentation liquid in the storage chamber 111 and the accuracy of the fermentation liquid detection results.
[0047] In some embodiments, the lower portion of the storage chamber 111 is tapered, and the first liquid outlet 113 is disposed at the lowest point of the storage chamber 111. The tapered design of the lower portion of the storage chamber 111 allows the storage liquid in the storage chamber 111 to be gathered at the lowest point of the storage chamber 111, and the first liquid outlet 113 is disposed at the lowest point, which is conducive to the complete discharge of the fermentation liquid in the storage chamber 111.
[0048] In some embodiments, the height of the first liquid inlet 112 is higher than the first liquid outlet 113. The height of the first liquid inlet 112 is higher than the first liquid outlet 113, which enables the fermentation liquid to flow into the storage chamber 111 from a higher position. The fermentation liquid flowing in from a higher position can have a certain impact and stirring effect on the fermentation liquid in the storage chamber 111, promote the uniform mixing of the fermentation liquid in the storage chamber 111, and help reduce the error caused by the local concentration difference or stratification of the fermentation liquid in the subsequent detection process.
[0049] In some embodiments, in order to facilitate the user to intuitively observe the amount of fermentation liquid in the storage chamber 111, the storage container 110 is a transparent storage container 110. At the same time, in order to more accurately control the sampling amount, the side wall of the storage chamber 111 is provided with a scale line 190. After the scale line 190 is set, the user reads the scale line 190 corresponding to the liquid level, and can know the capacity of the fermentation liquid in the storage chamber 111, so that the user can take a certain amount of fermentation liquid. The storage container 110 can be made of glass or plastic materials, and the scale line can be processed on the storage container 110 by spraying, printing or laser, etc., which is not limited here.
[0050] In some embodiments, the storage container 110 is a stainless steel storage container 110. The stainless steel material is not only corrosion-resistant and high-temperature-resistant, but also has high strength and stability, and can ensure the long-term stable operation of the sampler 100.
[0051] In some embodiments, the sampler 100 further includes a first seal 170, which is detachably connected to the liquid inlet pipe 120 to close or open the second liquid inlet 121. Specifically, the first seal 170 is detachably connected to one end of the liquid inlet pipe 120 where the second liquid inlet 121 is provided. When the first seal 170 is connected to the liquid inlet pipe 120, the first seal 170 closes the second liquid inlet 121 to prevent foreign matter, bacteria, etc. from entering the liquid inlet pipe 120 and contaminating the fermentation liquid. When the first seal 170 is not connected to the liquid inlet pipe 120, the first seal 170 opens the second liquid inlet 121 so that the fermentation liquid flowing out of the sampling port 2100 can smoothly enter the liquid inlet pipe 120.
[0052] There are various ways to detachably connect the first sealing member 170 and the liquid inlet pipe 120, such as threaded connection, clamping connection, etc. In some embodiments, the first sealing member 170 is a rubber plug, the size of which is larger than the size of the second liquid inlet 121. When the rubber plug is plugged into the second liquid inlet 121, the second liquid inlet 121 is closed, and when the rubber plug is pulled out of the second liquid inlet 121, the second liquid inlet 121 is opened.
[0053] In some embodiments, the sampler 100 further includes a second sealing member 180, which is detachably connected to the liquid outlet pipe 130 to close or open the third liquid outlet 132. Specifically, the second sealing member 180 is detachably connected to one end of the liquid outlet pipe 130 where the third liquid outlet 132 is provided. When the second sealing member 180 is connected to the liquid outlet pipe 130, the second sealing cover closes the third liquid outlet 132 to prevent foreign impurities, bacteria, etc. from entering the liquid outlet pipe 130 and contaminating the fermentation liquid. When the second sealing member 180 is not connected to the liquid outlet pipe 130, the second sealing member 180 opens the third liquid outlet 132 so that the fermentation liquid flowing out of the storage container 110 can smoothly enter the liquid inlet pipe 120 and be discharged through the third liquid outlet 132 of the liquid inlet pipe 120.
[0054] There are various ways to detachably connect the second sealing member 180 and the liquid outlet pipe 130, such as threaded connection, clamping connection, etc. In some embodiments, the second sealing member 180 is also a rubber plug, the size of which is larger than the size of the second liquid outlet 122. When the rubber plug is plugged into the third liquid outlet 132, the second liquid outlet 122 is closed, and when the rubber plug is pulled out of the second liquid outlet 122, the second liquid outlet 122 is opened.
[0055] like Figure 2 As shown, based on the same inventive concept, the embodiment of the present application further provides a sampling system 1000 , and the sampling system 1000 includes a sample tray 200 and the above-mentioned sampler 100 .
[0056] The sample tray 200 is in a tray shape and is used to hold fermentation liquid. Its structure is well known to those skilled in the art and will not be described in detail here.
[0057] Since the sampling system 1000 has the sample tray 200 , the fermentation liquid discharged from the third liquid outlet 132 of the sampler 100 can be directly discharged into the sample tray 200 , and the operator can take samples from the sample tray 200 for testing, which is convenient for the operator to use.
[0058] In addition, since the sampling system 1000 includes the sampler 100 described above in the present application, it naturally has all the beneficial effects of the sampler 100 of the present application, which will not be elaborated here.
[0059] The following describes the method of using the sampling system 1000 of the present application:
[0060] like Figure 3 As shown, when using the sampler 100 of the present application to perform a sampling operation, first remove the first sealing member 170 from the liquid inlet pipe 120, then sleeve one end of the liquid inlet pipe 120 provided with the second liquid inlet 121 on the sampling nozzle of the fermentation tank 2000 with the sampling port 2100, and then tighten the fastener 160 so that the liquid inlet pipe 120 fits tightly on the sampling nozzle, so that the second liquid inlet 121 and the sampling port 2100 are in airtight communication; then open the valve and the liquid inlet valve 140 on the fermentation tank 2000 that control the opening and closing of the sampling port 2100, so that the fermentation liquid in the fermentation tank 2000 flows into the storage chamber 111 of the storage container 110; then the user observes the liquid level in the storage chamber 111, and when a sufficient amount of fermentation liquid is collected, close the valve. The valve and the liquid inlet valve 140 on the fermentation tank 2000 control the opening and closing of the sampling port 2100; then loosen the fastener 160, remove the liquid inlet pipe 120 from the fermentation tank 2000, install the first sealing member 170 on the liquid inlet pipe 120, so that the first sealing member 170 seals the second liquid inlet port 121 of the liquid inlet pipe 120; then take the sampler 100 storing the fermentation liquid to the detection room for detecting the fermentation liquid, remove the second sealing member 180 from the liquid outlet pipe 130, and open the third liquid outlet 132; then, put the sample tray 200 under the third liquid outlet 132, open the liquid outlet valve 150, so that the fermentation liquid in the storage chamber 111 flows into the sample tray 200; finally, the operator takes the sample from the sample tray 200 and detects it.
[0061] After each sample test is completed, the liquid inlet valve 140 and the liquid outlet valve 150 are opened, and the sampler 100 is disinfected with a disinfectant or the like. After the disinfection is completed, the liquid inlet valve 140 and the liquid outlet valve 150 are closed, and the first sealing member 170 and the second sealing member 180 are respectively installed on the liquid inlet pipe 120 and the liquid outlet pipe 130 to seal the second liquid inlet port 121 and the third liquid outlet port 132.
[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.
[0063] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application. Although the implementation methods of the present application have been shown and described, ordinary technicians in this field can understand that various changes, modifications, substitutions and variations can be made to these implementation methods without departing from the principles and purpose of the present application, and the scope of the present application is defined by the claims and their equivalents.
Claims
1. A sampler, characterized in that: include: A storage container (110) comprising a storage cavity (111) and a first liquid inlet (112) and a first liquid outlet (113) communicated with the storage cavity (111); a liquid inlet pipe (120) having a second liquid inlet (121) and a second liquid outlet (122) in communication with each other, wherein the second liquid outlet (122) is in airtight communication with the first liquid inlet (112), and the second liquid inlet (121) is used for being in airtight communication with a sampling port (2100) of a fermentation tank (2000); A liquid outlet pipe (130) having a third liquid inlet (131) and a third liquid outlet (132) which are in communication with each other, wherein the third liquid inlet (131) is in airtight communication with the first liquid outlet (113); A liquid inlet valve (140), installed on the liquid inlet pipe (120); A liquid outlet valve (150) is installed on the liquid outlet pipe (130).
2. The sampler according to claim 1, characterized in that: The liquid inlet pipe (120) is a hose, and one end of the liquid inlet pipe (120) close to the second liquid inlet port (121) is sleeved with a fastener (160).
3. The sampler according to claim 1, characterized in that: The outer surface of the storage container (110) is provided with a heat-insulating layer (195).
4. The sampler according to claim 1, characterized in that: The lower part of the storage cavity (111) is conical, and the first liquid outlet (113) is arranged at the lowest point of the storage cavity (111).
5. The sampler according to claim 4, characterized in that: The first liquid inlet (112) is at a height higher than the first liquid outlet (113).
6. The sampler according to claim 1, characterized in that: The storage container (110) is a transparent storage container (110), and a scale mark (190) is provided on a side wall thereof.
7. The sampler according to claim 1, characterized in that: The storage container (110) is a stainless steel storage container (110).
8. The sampler according to any one of claims 1 to 7, characterized in that: The sampler (100) further comprises a first sealing member (170), wherein the first sealing member (170) is detachably connected to the liquid inlet pipe (120) so as to close or open the second liquid inlet port (121).
9. The sampler according to any one of claims 1 to 7, characterized in that: The sampler (100) further comprises a second sealing member (180), wherein the second sealing member (180) is detachably connected to the liquid outlet pipe (130) so as to close or open the third liquid outlet (132).
10. A sampling system, characterized in that: The invention comprises a sample tray (200) and the sampler (100) according to any one of claims 1 to 9.