Concentration detection device

Abstract

The utility model relates to a concentration detection device. The concentration detection device comprises a circuit assembly as well as a shell and a probe assembly which are coaxially connected, the circuit assembly is arranged in the shell, and a flat cable on the circuit assembly is led to the circuit assembly from one end of the probe assembly; the probe assembly is arranged at one end of the concentration detection device, the probe assembly is provided with a probe, a probe inner groove and a probe end face groove of a similar-ring-shaped structure are formed in the probe, the end, deviating from the concentration detection device, of the probe inner groove is the groove bottom of the probe inner groove, and the other end, facing the concentration detection device, of the probe inner groove is provided with a sapphire assembly; the probe end face groove is sealed and covered by the cover plate to form a cooling cavity, and the cooling cavity is arranged to be a ring-like hollow cavity and surrounds the sapphire assembly. The concentration detection device provided by some embodiments of the utility model is provided with a specific cooling system, so that the ambient temperature of the sapphire core assembly can be effectively reduced, and the influence of high temperature on the measurement precision is eliminated.

Description

Technical Field

[0001] The present application relates to the technical field of equipment detection and monitoring, and in particular to a concentration detection device. Background Art

[0002] Concentration transmitters, as key equipment in industrial automation, are based on the urgent need to accurately monitor and control the concentrations of various media in industrial production processes. With the rapid development of modern industry, particularly in the chemical, environmental, pharmaceutical, and food processing sectors, increasingly stringent requirements are being placed on controlling the concentrations of raw materials, intermediates, and final products. Production processes in these industries often involve complex and varied chemical reactions, separations, and purifications. Accurate concentration measurement and control are directly related to product quality, production efficiency, and safety. Early concentration transmitters primarily relied on mechanical or chemical measurement principles, resulting in low accuracy, slow response, and complex maintenance.

[0003] Currently developed concentration transmitters measure concentration changes by analyzing the angle of light reflected from solutions of varying concentrations, converting this change into an analog output signal. However, conventional transmitters have a significant drawback: they cannot operate in high-temperature environments, ideally requiring stable operation at 120°C. This makes them widely applicable to high-temperature environments in industries such as food, beverages, sugar production, and daily chemicals.

[0004] Therefore, the existing technology needs to be improved and enhanced. For example, designers are looking to design and develop a high-temperature display concentration transmitter, hoping to solve one or more of the above problems, and preferably have the advantages of fast measurement, accuracy, stability, and easy operation. Utility Model Content

[0005] In order to solve one or more of the above technical problems, the present disclosure provides a concentration detection device, which has characteristics such as good performance in a high temperature environment.

[0006] In a first aspect of the present disclosure, a concentration detection device is proposed, which includes: a circuit component, and a coaxially connected shell and probe component. In addition, the concentration detection device also includes: the above-mentioned circuit component is arranged in the above-mentioned shell and the wiring on the above-mentioned circuit component is led from one end of the above-mentioned probe component to the above-mentioned circuit component; the above-mentioned probe component is arranged at one end of the above-mentioned concentration detection device, the above-mentioned probe component is provided with a probe, and the above-mentioned probe is provided with a probe inner groove and a probe end face groove of a ring-like structure. The end of the above-mentioned probe end face groove close to the above-mentioned concentration detection device is the groove bottom of the above-mentioned probe end face groove, and the end of the above-mentioned probe inner groove away from the above-mentioned concentration detection device is the groove bottom of the above-mentioned probe inner groove. The other end of the above-mentioned probe inner groove facing the above-mentioned concentration detection device is provided with a sapphire component, and the above-mentioned probe end face groove is sealed and covered by a cover plate to form a cooling cavity. The above-mentioned cooling cavity is configured as a ring-like hollow cavity and surrounds the above-mentioned sapphire component.

[0007] Furthermore, in some embodiments, the cooling chamber is provided with a cooling chamber inlet and a cooling chamber outlet, the cooling chamber inlet is configured to be connected to a first interface pipe, the cooling chamber outlet is configured to be connected to a second interface pipe, and the first interface pipe and the second interface pipe extend out of the shell from one end of the shell facing away from the probe.

[0008] Furthermore, in some embodiments, the annular shape of the cooling cavity is configured as a "C"-shaped structure, and the cooling cavity inlet and the cooling cavity outlet are respectively connected to two open ends of the cooling cavity of the "C"-shaped structure.

[0009] Furthermore, in some embodiments, the cover plate and the probe end face groove are fully welded and sealed by argon arc welding.

[0010] Furthermore, in some embodiments, the bottom of the probe inner groove is provided with a probe hole connected to the outside, and the joint between the probe end face groove and the probe hole is provided with a prism in the sapphire component, and the prism is aligned with the probe hole.

[0011] Furthermore, in some embodiments, a first sealing ring is provided between the prism and the bottom of the inner groove of the probe. The first sealing ring is provided on the periphery of the probe hole, and the axis of the first sealing ring is collinear with the axis of the probe hole.

[0012] Furthermore, in some embodiments, the sapphire component is configured to be fixed to the probe assembly via a first fastener and a second fastener.

[0013] Furthermore, in some embodiments, the first fastener is configured to press and fix the sapphire component to the probe assembly via a screw; and the second fastener is configured to press and fix the prism on the sapphire component via a screw and a pressure block.

[0014] Furthermore, in some embodiments, the first mouthpiece and the second mouthpiece extend from the housing, and a second sealing ring is provided at the joints between the first mouthpiece, the second mouthpiece and the housing.

[0015] Furthermore, in some embodiments, the outer side surface of the probe assembly away from the central axis is configured to form a sealing structure with the inner side surface of the shell through a third sealing ring.

[0016] The beneficial effects of the present disclosure are:

[0017] 1) In some embodiments, a cooling cavity is formed by sealing between the probe end face groove and the cover plate. The cooling cavity is configured as a quasi-annular hollow cavity and surrounds the sapphire component, so as to form a cooling structure for the core component, thereby enabling the concentration detection device to adapt to high-temperature and harsh working conditions.

[0018] 2) Furthermore, in some embodiments, the annular structure of the cooling cavity is formed into a "C"-shaped structure, and the cooling cavity inlet and the cooling cavity outlet are respectively connected to the two open ends of the cooling cavity of the "C"-shaped structure so as to fully surround the core components and effectively remove them from the high temperature working conditions that the core components may face.

[0019] 3) Furthermore, in some embodiments, a first fastener and a second fastener are provided, and the first fastener fastens the sapphire assembly and the probe assembly, forming a threaded connection between the two, effectively strengthening the fixing structure and strengthening the fixation of the sapphire assembly to the probe assembly. Furthermore, a second fastener is provided, which presses the sapphire assembly to the probe assembly using a screw and a pressure block. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings, in which:

[0021] Figure 1 A schematic diagram of a concentration detection device according to an embodiment of the present disclosure is shown;

[0022] Figure 2 A schematic diagram showing another perspective of a concentration detection device according to an embodiment of the present disclosure;

[0023] Figure 3 A schematic diagram showing another perspective of the concentration detection device according to an embodiment of the present disclosure;

[0024] Figure 4 shows a schematic structural diagram of a cooling cavity according to an embodiment of the present disclosure; and

[0025] In each of the accompanying drawings, the same or corresponding reference numerals represent the same or corresponding parts; the reference numerals are: concentration detection device 100; circuit assembly 10; housing 20; second sealing ring 20-2; third sealing ring 20-3; probe assembly 30; probe 31; probe inner groove 31-1; probe end face groove 31-2; probe hole 32; first sealing ring 32-1; sapphire assembly 35; first fastener 35-1; second fastener 35-2; cover plate 36; cooling cavity 38; cooling cavity inlet 38-1; cooling cavity outlet 38-2; first interface pipe 38-3; second interface pipe 38-4. DETAILED DESCRIPTION

[0026] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of protection of the present disclosure.

[0027] In the description of the embodiments of the present disclosure, the term "including" and similar terms should be understood as open inclusion, that is, "including but not limited to." The term "based on" should be understood as "based at least in part on." The term "one embodiment" or "the embodiment" should be understood as "at least one embodiment." The terms "first," "second," etc. may refer to different or the same objects. Other explicit and implicit definitions may also be included below.

[0028] In some embodiments, the high-temperature display type concentration transmitter is mainly composed of four parts: a probe, a sapphire core photosensitive module, a conversion display circuit and a shell. The corresponding refractive index is generated by the concentration of the measured medium. The photosensitive module calculates the refractive index of the collected refracted light source and obtains the corresponding concentration through a data algorithm. It is displayed on the display panel to achieve the purpose of real-time on-site monitoring.

[0029] It should be understood that the concentration detection device is also called a concentration transmitter, which measures the concentration change of the solution by performing optical path analysis by measuring the change in the angle of the critical reflected light of solutions with different concentrations, and then converting the change into an analog signal output. However, there is an obvious defect in the conventional design, that is, it cannot be used in a high temperature environment. The inventor of the present disclosure has designed and developed this high-temperature display type concentration detection device (concentration detection transmitter) based on this situation, which can solve this problem well, and preferably can work stably in a temperature environment of 120°C. Therefore, it is expected that the concentration detection device designed in this way can be widely used in high temperature environments in the food, beverage, sugar making and daily chemical industries, and has the advantages of fast, accurate, stable and easy operation.

[0030] The concentration detection device is further explained below with reference to the accompanying drawings.

[0031] Figure 1 The schematic diagram of the concentration detection device according to the embodiment of the present disclosure is shown. In the embodiment of the concentration detection device shown in the figure, the concentration detection device 100 includes: a circuit component 10, and a shell 20 and a probe component 30 that are coaxially connected. In addition, the concentration detection device 100 also includes: the circuit component 10 is arranged in the shell 20 and the wiring on the circuit component 10 is led to the circuit component 10 by one end of the probe component 30. It should be noted that in the figure, the reference numeral 10 only indicates the wiring part of the circuit component, and the specific circuit part is not the focus of the present disclosure. Those skilled in the art should understand it based on the existing Some concentration detection devices have circuit components that complete the corresponding circuit deployment; the probe assembly 30 is arranged at one end of the concentration detection device 100, and the probe assembly 30 is provided with a probe 31. The probe 31 is provided with a probe inner groove 31-1 and a probe end face groove 31-2 of a circular ring structure. The end of the probe end face groove 31-2 close to the concentration detection device 100 is the bottom of the probe end face groove 31-2, and the end of the probe inner groove 31-1 facing away from the concentration detection device 100 is the bottom of the probe inner groove 31-1. It should be understood that in the illustrated embodiment, the housing 20 includes a probe assembly housing portion that encloses the probe assembly 30, a connecting rod housing portion marked with a reference numeral (e.g., reference numeral 20) (which can be regarded as a hollow connecting rod, and a wiring can pass through the interior, and the wiring connects the probe assembly portion and the circuit assembly portion at the left and right ends of the figure), and a circuit assembly housing portion located at the left end of the figure that encloses the circuit assembly 10 (its structure is not specifically shown).

[0032] Furthermore, in order to explain the details of the probe assembly 30 in more detail, further explanation is given below in conjunction with the accompanying drawings.

[0033] Figure 2A schematic diagram of another perspective of a concentration detection device according to an embodiment of the present disclosure is shown. In this illustrated embodiment, a sapphire component 35 is provided at the other end of the probe inner groove 31-1 facing the concentration detection device 100, and the probe end surface groove 31-2 is sealed and covered by a cover plate 36 to form a cooling cavity 38. The cooling cavity 38 is configured as a quasi-annular hollow cavity and surrounds the sapphire component 35. Because the cooling cavity 38 surrounds the sapphire component 35, coolant can be injected into the cooling cavity 38, and then the coolant circulates to effectively remove heat from the sapphire component 35 and its surroundings, thereby promoting the efficient operation of the core components of the concentration detection device at an appropriate temperature.

[0034] Furthermore, in some embodiments, the cover plate 36 and the probe end face groove 31 - 2 are fully welded and sealed by argon arc welding to enhance sealing and fixation.

[0035] Furthermore, in some embodiments, the bottom of the probe inner groove 31-1 is provided with a probe hole 32 connected to the outside, and the joint between the probe end face groove 31-2 and the probe hole 32 is provided with a prism in the sapphire component 35, and the prism is aligned with the probe hole 32.

[0036] Furthermore, in some embodiments, the sapphire assembly 35 is configured to be fixed to the probe assembly via a first fastener 35 - 1 and a second fastener 35 - 2 .

[0037] Furthermore, in some embodiments, the first fastener 35-1 is configured to press and fix the sapphire component 35 to the probe assembly 30 by means of screws (for example, by threaded connection as shown in the figure). It should be noted that in the illustrated embodiment, only one first fastener 35-1 is shown in perspective, and there may be multiple, for example, four, first fasteners (for example, screws) that are tightened to fix the sapphire component 35 to the probe assembly 30 (especially to the probe 31); the second fastener 35-2 is configured to press and fix the prism on the sapphire component 35 by means of screws and a pressure block.

[0038] In order to better illustrate the specific structure of the probe assembly 30 , another side view is used for further explanation.

[0039] Figure 3A schematic diagram illustrating another perspective of a concentration detection device according to an embodiment of the present disclosure is shown. In this illustrated embodiment, the cooling chamber 38 is provided with a cooling chamber inlet 38-1 and a cooling chamber outlet 38-2. The cooling chamber inlet 38-1 is configured to communicate with a first interface pipe 38-3, and the cooling chamber outlet 38-2 is configured to communicate with a second interface pipe 38-4. The first interface pipe 38-3 and the second interface pipe 38-4 extend from the housing 20 at an end facing away from the probe 31.

[0040] Furthermore, in some embodiments, especially as shown in the Y-enlarged view, a first sealing ring 32-1 is provided between the prism and the bottom of the inner groove 31-1 of the probe. The first sealing ring 32-1 is provided on the periphery of the probe hole 32, and the axis of the first sealing ring 32-1 is collinear with the axis of the probe hole 32 (as shown by the dotted line of the center axis in the figure).

[0041] Furthermore, in some embodiments, the outer side surface of the probe assembly 30 away from the central axis is configured to form a sealing structure with the inner side surface of the shell 20 through a third sealing ring 20-3; and then the sealing between the probe assembly 30 and the shell 20 is strengthened by a second sealing ring 20-2.

[0042] In order to further illustrate the structure of the cooling cavity 38 , further explanation is given below with reference to the drawings.

[0043] Figure 4 A schematic structural diagram of a cooling cavity according to an embodiment of the present disclosure is shown.

[0044] It should be understood from the accompanying drawings that in some embodiments, the cooling cavity 38 can be annular and can be constructed into a "C"-shaped structure (the figure shows a reversed "C"-shaped structure, as viewed from the inside of the paper to the outside of the paper), and the cooling cavity inlet 38-1 and the cooling cavity outlet 38-2 are respectively connected to the two open ends of the cooling cavity 38 of the "C"-shaped structure. In addition, the two open ends can be fixedly connected to the cooling cavity 38 by welding. It should be understood that the so-called inlet or outlet can be interchangeable, as long as one of them is the coolant inlet and the other is the coolant outlet, so that the coolant forms a circulation pattern in the cooling cavity 38 similar to the "coolant flow direction" indicated in the figure, so as to achieve the purpose of liquid cooling.

[0045] In addition, regarding sealing, see Figure 1-4Furthermore, the first interface tube 38-3 and the second interface tube 38-4 extend from the shell 20 (it should be understood that the shell 20 here refers to the shell covering the probe assembly part as shown in the figure), and the joint between the first interface tube 38-3 and the second interface tube 38-4 and the shell 20 is provided with a second sealing ring 20-2; thereby increasing the sealing performance of the joint between the first interface tube 38-3 and the second interface tube 38-4 and the shell 20.

[0046] Those skilled in the art should understand that the concentration detection device disclosed herein may include a concentration detection transmitter and a concentration detection sensor in some embodiments.

[0047] While various embodiments of the present disclosure have been described above, the foregoing description is intended to be illustrative, non-exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or technological improvements in the marketplace, or to enable others skilled in the art to understand the embodiments disclosed herein.

[0048] The foregoing description is merely an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Those skilled in the art will readily appreciate that the present disclosure is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure.

Claims

1. A concentration detection device, comprising: Circuit assembly, housing and probe assembly with coaxial connection, Its characteristics are: The circuit assembly is disposed in the housing and a wiring harness on the circuit assembly is led from one end of the probe assembly to the circuit assembly; The probe assembly is arranged at one end of the concentration detection device, and the probe assembly is provided with a probe. The probe is provided with a probe inner groove and a probe end face groove of a ring-like structure. The end of the probe end face groove close to the concentration detection device is the bottom of the probe end face groove, and the end of the probe inner groove away from the concentration detection device is the bottom of the probe inner groove. A sapphire assembly is provided at the other end of the probe inner groove facing the concentration detection device. The probe end face groove is sealed and covered by a cover plate to form a cooling cavity. The cooling cavity is arranged as a ring-like hollow cavity and surrounds the sapphire assembly.

2. The concentration detection device according to claim 1, characterized in that: The cooling cavity is provided with a cooling cavity inlet and a cooling cavity outlet, the cooling cavity inlet is arranged to be communicated with a first interface pipe, and the cooling cavity outlet is arranged to be communicated with a second interface pipe, and the first interface pipe and the second interface pipe extend out of the shell from one end of the shell away from the probe.

3. The concentration detection device according to claim 2, characterized in that: The annular shape of the cooling cavity is configured as a "C"-shaped structure, and the cooling cavity inlet and the cooling cavity outlet are respectively connected to two open ends of the cooling cavity of the "C"-shaped structure.

4. The concentration detection device according to claim 1, wherein: The cover plate and the probe end face groove are fully welded and sealed by argon arc welding.

5. The concentration detection device according to claim 1, characterized in that: The bottom of the inner groove of the probe is provided with a probe hole connected to the outside, and the junction between the probe end face groove and the probe hole is provided with a prism in the sapphire component, and the prism is aligned with the probe hole.

6. The concentration detection device according to claim 5, characterized in that: A first sealing ring is provided between the prism and the bottom of the inner groove of the probe. The first sealing ring is provided on the periphery of the probe hole. The axis of the first sealing ring is collinear with the axis of the probe hole.

7. The concentration detection device according to claim 1, characterized in that: The sapphire component is configured to be fixed to the probe assembly via a first fastener and a second fastener.

8. The concentration detection device according to claim 7, characterized in that: The first fastener is configured to press and fix the sapphire component on the probe assembly through a screw; The second fastener is configured to press and fix the prism on the sapphire component through a screw and a pressing block.

9. The concentration detection device according to claim 2, characterized in that: The first mouthpiece and the second mouthpiece extend from the housing, and a second sealing ring is provided at a joint between the first mouthpiece, the second mouthpiece and the housing.

10. The concentration detection device according to claim 1, characterized in that: The outer side surface of the probe assembly away from the central axis is configured to form a sealing structure with the inner side surface of the housing through a third sealing ring.

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