Micro-flow water quality high-temperature digestion detection module

Abstract

The utility model relates to the technical field of water quality monitoring, in particular to a micro-flow water quality high-temperature digestion detection module which comprises a digestion container for accommodating a micro sample, a heating module for digesting and heating the sample, and an on-off control mechanism for controlling on-off of a sample liquid path, and the optical fiber access mechanism is used for accessing an optical fiber so as to carry out sample data detection through a colorimetric method. The device is simple in structure, reasonable in design, high in integration level, high in automation degree and high in detection precision, a series of work such as introduction of a trace sample, rapid digestion and heating of the sample, data detection of the sample and complete emptying of waste liquid can be achieved, meanwhile, the digestion container for containing the trace sample is adopted, the structural design can be optimized, and the detection efficiency is improved. The occupied space is reduced, meanwhile, the sample detection speed can be increased, the detection efficiency is improved, waste liquid can be conveniently emptied, detection errors caused by waste liquid residues to follow-up detection are avoided, and the detection effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water quality monitoring technical field, concretely relates to micro flow water quality high temperature digestion detection module. BACKGROUND

[0002] In the current water quality monitoring field, the application of online automatic monitoring device, the water quality index monitoring and analysis site is transferred from the experiment table to the water quality monitoring site, the existing water quality online detection gas module on the market is mostly the conventional heating wire winding quartz colorimetric dish heating mode, adopts the up and down electromagnetic coil high pressure valve, the optical fiber transmits the colorimetric dish colorimetric structure, its light is easily interfered by external environment, the detection precision is lower, and the volume is big, the actual waste liquid volume is more than 16ml around each time, the generated waste liquid needs special treatment, is not favorable to environmental protection, and the colorimetric dish is combined with the high pressure valve groove residual sample too much. UTILITARIAN CONTENT

[0003] The utility model solves the technical problem that: the current water quality online detection gas module structure is more complex, the volume is big, the integration is low, is easily interfered by external light temperature condition etc., the detection precision is lower, and the waste liquid is more, is not favorable to environmental protection.

[0004] In order to solve the above technical problem, the utility model adopts the following technical scheme: micro flow water quality high temperature digestion detection module, including the digestion container for containing trace sample, the heating module for heating sample digestion, the on-off control mechanism for controlling the on-off of sample liquid path, and the optical fiber access mechanism for accessing optical fiber to carry out sample data detection by colorimetric method, the heating part and temperature detection part of the heating module are arranged in the inside of digestion container, the access end of optical fiber access mechanism is connected with the inside of digestion container, and the digestion container is conducted through the on-off control module and corresponding sample supply device.

[0005] The utility model can realize a series of work such as the input of trace sample, the rapid digestion heating of sample, the data detection of sample and the complete emptying of waste liquid when working, and the degree of automation is high, the detection precision is high, simultaneously adopts the digestion container for containing trace sample, can optimize structural design, reduces the space occupied, can accelerate the speed of sample detection simultaneously, improves the detection efficiency, and the waste liquid is conveniently emptied, avoids the detection error caused by waste liquid residue to subsequent detection, improves the detection effect.

[0006] As preferred, the on-off control mechanism comprises an on-off valve body, an on-off driving device, a first valve core, a second valve core and an on-off valve core, the first valve core and the second valve core are arranged in the interior of the on-off valve body, the on-off valve core is arranged between the first valve core and the second valve core and is in close sliding connection with the first valve core and the second valve core respectively, the first valve core is provided with a first valve hole through which the sample passes, the first valve hole is communicated with the digestion container, the second valve core is provided with a second valve hole through which the sample passes, the second valve hole is communicated with the corresponding sample supply device, the on-off valve core is provided with an on-off valve hole for communicating the first valve hole and the second valve hole, the on-off valve core is in driving connection with the output part of the on-off driving device through a transmission assembly, and the on-off valve hole of the on-off valve core communicates the first valve hole and the second valve hole under the driving of the on-off driving device.

[0007] As preferred, a heat insulation plate is further included, the digestion container is fixedly installed on the on-off valve body, and the heat insulation plate is arranged between the heat generating part of the digestion container and the on-off valve body.

[0008] As preferred, the internal bottom end of the digestion container is in arc slope shape, and the internal bottom surface of the digestion container is provided with an opening through which the sample passes.

[0009] As preferred, the heating module comprises a temperature sensor and a heating module rod, and the detection end of the temperature sensor and the heating end of the heating module rod are arranged in the interior of the digestion container.

[0010] As preferred, the optical fiber access mechanism comprises an optical fiber joint, a top block, a sealing inverted cone and a light-transmitting frustum, the digestion container is provided with two symmetrical light-transmitting holes, each of the light-transmitting holes is provided with a sealing inverted cone, the inner surface of the sealing inverted cone is provided with a first sealing inclined surface which expands outward from inside, the outer surface of the light-transmitting frustum is provided with a second sealing inclined surface which cooperates with the first sealing inclined surface, each of the sealing inverted cones is provided with a light-transmitting frustum in close contact through the first sealing inclined surface and the second sealing inclined surface, the outer end of the light-transmitting hole is provided with a thread, the head end of the optical fiber joint is installed in the light-transmitting hole in a threaded connection manner, the head end of the optical fiber joint is provided with a groove in which the top block is arranged, the top block is installed in the groove of the optical fiber joint and is in driving connection with the light-transmitting frustum when the optical fiber joint is screwed in, and the light-transmitting frustum is in interference fit with the sealing inverted cone to realize sealing when the optical fiber joint is screwed in.

[0011] As preferred, the sealing inverted cone is made of a low-hardness corrosion-resistant material, and the light-transmitting frustum is made of a light-transmitting material.

[0012] As preferred, the digestion container is made of ceramic.

[0013] As preferred, the heating part and the temperature detecting part of the heating module are arranged in the interior of the digestion container with a gap between the heating part and the temperature detecting part of the heating module for guiding the light path between the two light transmission holes.

[0014] As preferred, the heating rod is a ceramic heating rod, and the heating rod and the detecting end of the temperature sensor are both surrounded by a quartz glass tube filled with heat-conducting silicone grease.

[0015] The beneficial technical effects of the present application include:

[0016] The present application has the advantages of simple structure, reasonable design, high integration, realization of micro sample input, rapid digestion and heating of the sample, data detection of the sample, complete emptying of waste liquid, high automation, high detection precision, optimized structure design, reduced space occupation, accelerated sample detection speed, improved detection efficiency, convenient waste liquid emptying, avoided detection error caused by waste liquid residue, and improved detection effect.

[0017] Other features and advantages of the present application will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described in combination with the drawings as follows:

[0019] Figure 1 is a sectional view of the micro-flow water quality high-temperature digestion detection module;

[0020] Figure 2 is a sectional view of the micro-flow water quality high-temperature digestion detection module; Figure One

[0021] Figure 3 is a sectional view of the micro-flow water quality high-temperature digestion detection module; Figure 2

[0022] Figure 4 is a sectional view of the micro-flow water quality high-temperature digestion detection module; Figure Two

[0023] Figure 5 is a sectional view of the micro-flow water quality high-temperature digestion detection module; Figure 4 DETAILED DESCRIPTION

[0024] ​​​​The technical solutions of the embodiments of the utility model will be explained and described below in combination with the drawings of the embodiments of the utility model. However, the following embodiments are only preferred embodiments of the utility model, and not all. Based on the embodiments in the embodiments, other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0025] In the following description, the orientation or position relationship such as the terms "inner", "outer", "upper", "lower", "left", "right" and the like appearing in the description are only for the convenience of describing the embodiments and simplifying the description, and are not indicative or suggestive of the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0026] Please refer to Figure 1 The embodiment discloses a micro-flow water quality high-temperature digestion detection module, which comprises a digestion container 1 for containing a trace sample, a heating module 2 for heating the sample, an on-off control mechanism 3 for controlling the on-off of the sample liquid path, and an optical fiber access mechanism 4 for accessing an optical fiber to detect sample data by colorimetry.

[0027] Please refer to Figures 1 to 5 In the embodiment, the heating part and the temperature detection part of the heating module 2 are arranged in the interior of the digestion container 1, the access ends of the optical fiber access mechanism 4 are connected with the interior of the digestion container 1, and the digestion container 1 is connected with the corresponding sample supply device through the on-off control module.

[0028] When the embodiment works, the trace sample can be introduced, the sample can be rapidly digested and heated, the sample data can be detected, and the waste liquid can be completely discharged, and the like, so that the degree of automation is high, the detection precision is high, the digestion container 1 for containing the trace sample is adopted, the structure design can be optimized, the occupied space can be reduced, the sample detection speed can be accelerated, the detection efficiency can be improved, the waste liquid can be conveniently discharged, the detection error caused by the waste liquid residue to subsequent detection can be avoided, and the detection effect can be improved.

[0029] Preferably, the on-off control mechanism 3 comprises an on-off valve body 31, an on-off driving device 32, a first valve core 33, a second valve core 34 and an on-off valve core 35, the first valve core 33 and the second valve core 34 are arranged in the interior of the on-off valve body 31 in a spaced manner, the on-off valve core 35 is arranged between the first valve core 33 and the second valve core 34 and is in close sliding connection with the first valve core 33 and the second valve core 34 respectively, the first valve core 33 is provided with a first valve hole through which the sample passes, the first valve hole is in communication with the digestion container 1, the second valve core 34 is provided with a second valve hole through which the sample passes, the second valve hole is in communication with the corresponding sample supply device, the on-off valve core 35 is provided with an on-off valve hole for communicating the first valve hole and the second valve hole, the on-off valve core 35 is in transmission connection with the output part of the on-off driving device 32 through a transmission assembly, the on-off valve hole of the on-off valve core 35 is in communication with the first valve hole and the second valve hole under the driving of the on-off driving device 32, in operation, the position of the on-off valve core 35 is controlled to realize the control of the sample liquid path on-off, and the high-pressure sealing effect with high sealing level can be realized.

[0030] In specific implementation, in order to further improve the sealing effect, the optical fiber access mechanism 4 comprises an optical fiber joint 41, a top block 42, a sealing inverted cone 43 and a light-transmitting cone table 44, two symmetrical light-transmitting holes 12 are formed on the digestion container 1, the sealing inverted cone 43 is installed in each light-transmitting hole 12, the inner surface of the sealing inverted cone 43 is provided with a first sealing inclined surface 431 which expands outward from inside, the outer surface of the light-transmitting cone table 44 is provided with a second sealing inclined surface 441 which cooperates with the first sealing inclined surface 431, the light-transmitting cone table 44 is installed in each sealing inverted cone 43 in a close contact manner through the first sealing inclined surface 431 and the second sealing inclined surface 441, the outer end of the light-transmitting hole 12 is provided with a thread, the head end of the optical fiber joint 41 is installed in the light-transmitting hole 12 in a threaded connection manner, the head end of the optical fiber joint 41 is provided with a groove in which the top block 42 is placed, the top block 42 is installed in the groove of the optical fiber joint 41 and is in transmission connection with the light-transmitting cone table 44 when the optical fiber joint 41 is screwed in, the light-transmitting cone table 44 is in interference fit with the sealing inverted cone 43 to realize sealing when the optical fiber joint 41 is screwed in, and can withstand the high pressure generated when the sample is heated to a high temperature.

[0031] In specific implementation, the sealing inverted cone 43 is made of a low-hardness corrosion-resistant material, such as polytetrafluoroethylene material or any other existing material, the light-transmitting cone table 44 is made of a light-transmitting material, such as quartz, GGS1 sapphire or any other existing optical light-transmitting material, preferably, the first valve core 33, the second valve core 34, the on-off valve core 35 and the digestion container 1 are preferably made of a corrosion-resistant and wear-resistant material, such as alumina ceramic or any other suitable material, and the on-off valve body 31 can be made of SUS304 or any other high-temperature-resistant material.

[0032] As a further improvement of the embodiment, the heat isolation plate 5 is further arranged between the heat generating part of the digestion container 1 and the on-off valve body 31, and in specific implementation, the heat isolation plate 5 can be made of bakelite fiber composite material or any other low thermal conductivity material.

[0033] Preferably, the inner bottom end of the digestion container 1 is shaped as an arc slope, and the inner bottom surface of the digestion container 1 is provided with an opening 11 for the sample to pass through, so that the digestion container 1 with the arc-shaped bottom end can discharge the waste liquid through the opening 11, thereby avoiding the influence of residual sample on the subsequent detection results.

[0034] Preferably, the heating part and the temperature detection part of the heating module 2 are arranged in the interior of the digestion container 1, and a gap for the light path between the two light transmission holes 12 is arranged between the heating part and the temperature detection part of the heating module 2, and in specific implementation, the heating module 2 includes a temperature sensor 21 and a heating rod 22, the detection end of the temperature sensor 21 and the heating end of the heating rod 22 are arranged in the interior of the digestion container 1, the heating rod 22 is a ceramic heating rod, the temperature sensor 21 is preferably a PT1000, and quartz glass tubes are sleeved on the periphery of the heating rod 22 and the detection end of the temperature sensor 21, and the quartz glass tubes are filled with heat-conducting silicone grease, which can improve the corrosion resistance while ensuring the heat conduction efficiency, and the heating and detection effects are good.

[0035] The beneficial technical effects of the embodiment include that the structure of the utility model is simple, reasonable in design, high in integration, capable of realizing a series of works such as the introduction of trace samples, rapid digestion and heating of samples, data detection of samples, and complete emptying of waste liquid, high in automation degree and detection precision, capable of optimizing the structural design, reducing the occupied space, speeding up the sample detection, improving the detection efficiency, and facilitating the emptying of waste liquid, avoiding the detection error caused by the residual waste liquid to the subsequent detection, and improving the detection effect.

[0036] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this, and those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification without deviating from the functional and structural principles of the utility model shall be included in the scope of the claims.

Claims

1. A micro-flow water quality high-temperature digestion detection module, characterized in that: The digestion container (1) is used to hold a small amount of sample, the heating module (2) is used to digest and heat the sample, the on / off control mechanism (3) is used to control the on / off of the sample liquid path, and the optical fiber access mechanism (4) is used to connect to an optical fiber for sample data detection by colorimetry. The heating part and the temperature detection part of the heating module (2) are both arranged inside the digestion container (1). The access end of the optical fiber access mechanism (4) is connected to the inside of the digestion container (1). The digestion container (1) is connected to the corresponding sample supply device through the on / off control module.

2. The micro-flow water quality high-temperature digestion detection module according to claim 1, characterized in that: The on / off control mechanism (3) includes an on / off valve body (31), an on / off drive device (32), a first valve core (33), a second valve core (34), and an on / off valve core (35). The first valve core (33) and the second valve core (34) are spaced apart inside the on / off valve body (31). The on / off valve core (35) is arranged between the first valve core (33) and the second valve core (34) and is tightly slidably connected to the first valve core (33) and the second valve core (34) respectively. The first valve core (33) is provided with a passage for the sample to pass through. The first valve hole is connected to the digestion container (1). The second valve core (34) is provided with a second valve hole for the sample to pass through. The second valve hole is connected to the corresponding sample supply device. The on / off valve core (35) is provided with an on / off valve hole for connecting the first valve hole and the second valve hole. The on / off valve core (35) is connected to the output part of the on / off drive device (32) through a transmission assembly. The on / off valve hole of the on / off valve core (35) connects the first valve hole and the second valve hole under the drive of the on / off drive device (32).

3. The micro-flow water quality high-temperature digestion detection module according to claim 2, characterized in that: It also includes a heat isolation plate (5), the digestion container (1) is fixedly installed on the on / off valve body (31), and the heat isolation plate (5) is arranged between the heat-generating part of the digestion container (1) and the on / off valve body (31).

4. The micro-flow water quality high-temperature digestion detection module according to claim 1, characterized in that: The digestion container (1) has an arc-shaped bottom end and an opening (11) for the sample to pass through.

5. The micro-flow water quality high-temperature digestion detection module according to claim 1, characterized in that: The fiber optic access mechanism (4) includes a fiber optic connector (41), a top block (42), a sealing inverted cone (43), and a light-transmitting cone (44). The digestion container (1) has two symmetrically arranged light-transmitting holes (12), each containing a sealing inverted cone (43). The inner surface of the sealing inverted cone (43) has a first sealing inclined surface (431) that expands outwards from the inside. The outer surface of the light-transmitting cone (44) has a second sealing inclined surface (441) that cooperates with the first sealing inclined surface (431). Each sealing inverted cone (43) passes through the first sealing inclined surface (431). A light-transmitting cone (44) is installed in close contact with the second sealing slope (441). The outer end of the light-transmitting hole (12) is threaded. The head end of the fiber optic connector (41) is installed in the light-transmitting hole (12) by means of threaded connection. The head end of the fiber optic connector (41) is provided with a groove for the top block (42) to be placed. The top block (42) is installed in the groove of the fiber optic connector (41) and is connected to the light-transmitting cone (44) when the fiber optic connector (41) is screwed in. The light-transmitting cone (44) is press-fitted with the sealing inverted cone (43) to achieve sealing when the fiber optic connector (41) is screwed in.

6. The micro-flow water quality high-temperature digestion detection module according to claim 5, characterized in that: The sealing inverted cone (43) is made of a low-hardness corrosion-resistant material, and the light-transmitting cone (44) is made of a light-transmitting material.

7. The micro-flow water quality high-temperature digestion detection module according to claim 1, characterized in that: The digestion container (1) is made of ceramic.

8. The micro-flow water quality high-temperature digestion detection module according to claim 1, characterized in that: The heating part and the temperature detection part of the heating module (2) are arranged alternately inside the digestion container (1), and a gap is provided between the heating part and the temperature detection part of the heating module (2) to allow light to pass between the two light-transmitting holes (12).

9. The micro-flow water quality high-temperature digestion detection module according to claim 1, characterized in that: The heating module (2) includes a temperature sensor (21) and a heating rod (22), with the detection end of the temperature sensor (21) and the heating end of the heating rod (22) both arranged inside the digestion container (1).

10. The micro-flow water quality high-temperature digestion detection module according to claim 9, characterized in that: The heating rod (22) is a ceramic heating rod. Both the heating rod (22) and the detection end of the temperature sensor (21) are surrounded by a quartz glass tube, and the quartz glass tube is filled with thermally conductive silicone grease.

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