Total base number detection device

Abstract

The utility model discloses a total base number detection device, and belongs to the technical field of total base number detection. The total base number detection device comprises a detection shell seat, a cover plate and a pressure sensor; a first accommodating cavity and a second accommodating cavity are formed in the detection shell seat at an interval, one of the first accommodating cavity and the second accommodating cavity is used for accommodating a to-be-detected liquid, the other one is used for accommodating a sample liquid, and the sample liquid can chemically react with the to-be-detected liquid to generate gas; a reaction cavity communicated with the first accommodating cavity and the second accommodating cavity is formed in the cover plate, the cover plate covers the detection shell seat in a sealing manner, so that a sealing space is formed among the first accommodating cavity, the second accommodating cavity and the reaction cavity, and when the detection shell seat and the cover plate are inverted, the to-be-detected liquid and the sample liquid flow into the reaction cavity for mixed reaction; the pressure sensor is connected to the detection shell base and communicates with the sealed space. The pressure sensor is used for detecting the pressure intensity value in the sealed space. The total base number detection device is high in detection efficiency and detection accuracy.

Description

TECHNICAL FIELD

[0001] The utility model relates to total alkalinity detection technical field especially relates to a total alkalinity detection device. BACKGROUND

[0002] The detection principle of the total alkalinity detection device is that the to-be-detected liquid and the sample liquid are mixed first, so that the two react to produce gas and change the pressure in the total alkalinity detection device, then the pressure value is detected by the pressure sensor of the total alkalinity detection device, and the pressure value is converted into the total alkalinity of the to-be-detected liquid, so that the total alkalinity of the to-be-detected liquid is obtained. The total alkalinity specifically refers to the total content of alkaline substances in the to-be-detected liquid.

[0003] However, the mixing operation of the to-be-detected liquid and the sample liquid is more cumbersome and laborious in the current total alkalinity detection device, so that the detection efficiency of the to-be-detected liquid is low. In addition, the total alkalinity detection device has poor sealing performance, and the gas produced by the reaction is easy to overflow outward, which reduces the accuracy and reliability of the detection of the total alkalinity. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a total alkalinity detection device, which has high detection efficiency and can ensure the detection accuracy of the pressure sensor for the pressure value in the sealed space, thereby ensuring the accuracy and reliability of the total alkalinity directly converted from the detected pressure value.

[0005] To achieve this purpose, the utility model adopts the following technical scheme:

[0006] The total alkalinity detection device comprises:

[0007] A detection shell seat is provided with a first containing cavity and a second containing cavity at intervals, one of the first containing cavity and the second containing cavity is used for containing the to-be-detected liquid, and the other is used for containing the sample liquid, and the sample liquid can react with the to-be-detected liquid to produce gas;

[0008] A cover plate is provided with a reaction cavity communicating with the first containing cavity and the second containing cavity, the cover plate sealing cover is arranged on the detection shell seat, so as to form a sealed space between the first containing cavity, the second containing cavity and the reaction cavity, and when the detection shell seat and the cover plate are inverted, the to-be-detected liquid and the sample liquid flow into the reaction cavity and mix and react;

[0009] A pressure sensor is connected to the detection shell seat and communicates with the sealed space, and the pressure sensor is used for detecting the pressure value in the sealed space.

[0010] As an option, one of the top end surface of the detection shell and the bottom end surface of the cover plate is provided with a clamping groove, and the other is provided with a clamping convex, which can be clamped in the clamping groove.

[0011] As an option, the top end surface of the detection shell and / or the bottom end surface of the cover plate is provided with a first sealing groove for limiting the placement of a first sealing member.

[0012] As an option, the groove width of the first sealing groove is 0.4-0.6mm larger than the diameter of the first sealing member, and the groove depth of the first sealing groove is 0.1-0.2mm smaller than the diameter of the first sealing member.

[0013] As an option, the total alkalinity detection device further comprises:

[0014] A buckle is connected to the outer wall surface of the detection shell at one end and to the outer wall surface of the cover plate at the other end, and is used to tighten or loosen the cover plate and the detection shell.

[0015] As an option, the detection shell is further provided with a mounting space and a communication hole in communication, the communication hole is located in the interval between the first accommodating cavity and the second accommodating cavity, and the mounting space is located below the first accommodating cavity and the second accommodating cavity, and the pressure sensor is installed in the mounting space and covers one end of the communication hole.

[0016] As an option, the top end surface of the pressure sensor and / or the inner top wall surface of the mounting space is provided with a second sealing groove, which is annularly located at the outer periphery of the communication hole, and is used to limit the placement of a second sealing member.

[0017] As an option, the groove width of the second sealing groove is 0.4-0.6mm larger than the diameter of the second sealing member, and the groove depth of the second sealing groove is 0.1-0.2mm smaller than the diameter of the second sealing member.

[0018] As an option, the total alkalinity detection device further comprises:

[0019] A stirrer is provided on the cover plate, the stirring shaft of the stirrer extends into the reaction cavity, the stirring shaft can rotate around its axis, and a third sealing member is provided between the stirring shaft and the cover plate.

[0020] As an option, the total alkalinity detection device further comprises:

[0021] An electric control assembly is connected in the detection shell below the pressure sensor, and the electric control assembly is in communication connection with the pressure sensor.

[0022] The total alkalinity detection device has the advantages that:

[0023] The total alkalinity detection device has the advantages that: the first accommodating cavity and the second accommodating cavity are arranged in the detection shell seat, one of the first accommodating cavity and the second accommodating cavity is used for accommodating the sample liquid, and the other is used for accommodating the sample liquid, so that the sample liquid and the sample liquid can be placed separately before reaction and do not affect each other; the reaction cavity is arranged in the cover plate and communicates with the first accommodating cavity and the second accommodating cavity, the first accommodating cavity, the second accommodating cavity and the reaction cavity form a sealed space when the cover plate is sealed on the detection shell seat; the sample liquid and the sample liquid can flow into the reaction cavity and mix automatically when the detection shell seat and the cover plate are inverted, so that the sample liquid and the sample liquid can react to produce gas; that is, the sample liquid, the sample liquid and the gas produced by the reaction are all located in the sealed space, so that the sample liquid, the sample liquid and the gas produced by the reaction cannot overflow through the gap between the detection shell seat and the cover plate, thereby ensuring the detection accuracy of the pressure sensor to the pressure value in the sealed space, and further ensuring the accuracy of the total alkalinity value directly converted from the detected pressure value; the total alkalinity detection device with the above structure can quickly mix the sample liquid and the sample liquid, and the mixing method is simple and convenient, thereby improving the detection efficiency; and the formed sealed space can ensure the sealing property, so that the detection accuracy and reliability are higher. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structure diagram of the total alkalinity detection device provided by the utility model; Figure 1 ;

[0025] Figure 2 is a sectional view of the total alkalinity detection device provided by the utility model;

[0026] Figure 3 is a structure diagram of the total alkalinity detection device (the cover plate is not covered on the detection shell seat) provided by the utility model; Figure 2 ;

[0027] Figure 4 is a bottom surface structure diagram of the cover plate provided by the utility model.

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] 1-detection shell seat; 11-first accommodating cavity; 12-second accommodating cavity; 13-communication hole; 15-clamping groove; 16-sealed space; 17-first sealing element; 18-second sealing element;

[0030] 2-cover plate; 21-reaction cavity; 22-clamping convex;

[0031] 3 - pressure sensor; 4 - fixing seat; 5 - electric control assembly. DETAILED DESCRIPTION

[0032] All features disclosed in this specification, and / or all steps of any methods or processes disclosed in this specification, may be combined in any combination, except combinations where at least some of such features and / or steps are mutually exclusive.

[0033] Any feature disclosed in this specification, unless stated otherwise, can be replaced by any equivalent or similar feature. That is, unless stated otherwise, each feature is one example only of a generic series of equivalent or similar features. Where the same reference sign is used in different figures, that sign denotes a similar feature in those figures.

[0034] In order to make the technical problems solved by the utility model, the technical scheme adopted and the technical effects reached more clear, the technical scheme of the utility model is further illustrated below by specific implementation manners and in connection with the drawings.

[0035] The total alkalinity detection device is used for detecting the total alkalinity of alkaline substances contained in the liquid to be detected, and has simple and convenient detection mode, high detection efficiency, and high accuracy and reliability of detection results.

[0036] Specifically, as shown in Figures 1 to 4 The total alkalinity detection device includes a detection shell seat 1, a cover plate 2 and a pressure sensor 3. One of the first accommodating cavity 11 and the second accommodating cavity 12 in the detection shell seat 1 is used to accommodate the liquid to be detected, and the other is used to accommodate the sample liquid. The sample liquid can react with the liquid to be detected to produce gas. The cover plate 2 is provided with a reaction cavity 21 which is in communication with the first accommodating cavity 11 and the second accommodating cavity 12. When the cover plate 2 is sealed and covered on the detection shell seat 1, the first accommodating cavity 11, the second accommodating cavity 12 and the reaction cavity 21 form a sealed space 16. When the detection shell seat 1 and the cover plate 2 are inverted, the liquid to be detected and the sample liquid automatically flow into the reaction cavity 21 for mixing reaction. The pressure sensor 3 is connected to the detection shell seat 1 and is in communication with the sealed space 16. The pressure sensor 3 is used to detect the pressure value in the sealed space 16. Here, the specific types of the liquid to be detected and the sample liquid are not limited, as long as the liquid to be detected and the sample liquid can react with each other to produce gas.

[0037] The total base number detection device in the embodiment changes the mixing mode of the to-be-detected liquid and the sample liquid relative to the prior art, and forms a sealed space 16 between the detection shell 1 and the cover plate 2. When the cover plate 2 is sealed on the detection shell 1, the first accommodating cavity 11, the second accommodating cavity 12 and the reaction cavity 21 form the sealed space 16 therebetween. Then, when the detection shell 1 and the cover plate 2 are inverted, the to-be-detected liquid and the sample liquid can automatically flow into the reaction cavity 21 to mix, so that the to-be-detected liquid and the sample liquid can react to generate gas. That is, the to-be-detected liquid, the sample liquid and the gas generated by the reaction are all located in the sealed space 16, so that the to-be-detected liquid, the sample liquid and the gas generated by the reaction cannot overflow through the gap between the detection shell 1 and the cover plate 2, thereby ensuring the detection accuracy of the pressure sensor 3 on the pressure value in the sealed space 16, and further ensuring the accuracy of the total base number directly converted from the detected pressure value. The total base number detection device with the above structure can quickly mix the to-be-detected liquid and the sample liquid, and the mixing mode is simple and convenient, thereby improving the detection efficiency. Moreover, the formed sealed space 16 can ensure the sealing, so that the detection accuracy and reliability are higher.

[0038] Further, as shown in Figures 1 to 4 , one of the top end face of the detection shell 1 and the bottom end face of the cover plate 2 is provided with a clamping groove 15, and the other is provided with a clamping convex 22. The clamping convex 22 can be clamped in the clamping groove 15. On the one hand, the clamping convex 22 and the clamping groove 15 can be clamped to position and fix the cover plate 2 on the detection shell 1, so as to ensure the accuracy of the installation position between the cover plate 2 and the detection shell 1. On the other hand, the clamping convex 22 and the clamping groove 15 can be clamped to make the periphery of the cover plate 2 and the periphery of the detection shell 1 engage with each other in a stepped manner, so as to realize the first layer sealing effect between the cover plate 2 and the detection shell 1.

[0039] In the embodiment, as shown in Figure 3 and Figure 4 , the top end face of the detection shell 1 is provided with a clamping groove 15, and the bottom end face of the cover plate 2 is provided with a clamping convex 22. In other embodiments, the top end face of the detection shell 1 can be provided with a clamping convex 22, and the bottom end face of the cover plate 2 can be provided with a clamping groove 15. Here, the positions of the clamping groove 15 and the clamping convex 22 are not limited.

[0040] Further, as shown in Figure 2 and Figure 3As shown, a first sealing groove is arranged on the top end surface of the detection shell seat 1 and / or the bottom end surface of the cover plate 2, and the first sealing groove is used to limit the placement of the first sealing member 17, that is, to make the first sealing member 17 and the first sealing groove tightly combined, so that the second layer sealing effect between the cover plate 2 and the detection shell seat 1 can be realized through the first sealing member 17. In the embodiment, the first sealing groove is arranged on the top end surface of the detection shell seat 1 and the bottom end surface of the cover plate 2, and the two first sealing grooves are arranged opposite to each other, so that the first sealing member 17 and the upper and lower first sealing grooves are tightly combined, and the first sealing member 17 can be a sealing ring.

[0041] Specifically, the groove width of the first sealing groove is 0.4mm-0.6mm larger than the diameter of the first sealing member 17, and the groove depth of the first sealing groove is 0.1mm-0.2mm smaller than the diameter of the first sealing member 17, so that the cooperation between the first sealing groove and the first sealing member 17 is better, thereby better ensuring the sealing effect through the first sealing member 17, and further making the second layer sealing effect between the cover plate 2 and the detection shell seat 1 better. In the embodiment, the groove width of the first sealing groove is 0.5mm larger than the diameter of the first sealing member 17, and the groove depth of the first sealing groove is 0.1mm smaller than the diameter of the first sealing member 17.

[0042] Further, the total alkalinity detection device further comprises a buckle member, one end of the buckle member is connected to the outer wall surface of the detection shell seat 1, and the other end of the buckle member is connected to the outer wall surface of the cover plate 2, and the buckle member is used to buckle or loosen the cover plate 2 and the detection shell seat 1; on the one hand, the buckle member can be used to quickly buckle or loosen the cover plate 2 and the detection shell seat 1, and can ensure the locking stability between the cover plate 2 and the detection shell seat 1; on the other hand, the third layer sealing effect between the cover plate 2 and the detection shell seat 1 can be realized through the locking action of the buckle member. Wherein, the lock member can adopt the common lock structure in the prior art.

[0043] In the embodiment, the first layer sealing effect between the cover plate 2 and the detection shell seat 1 is realized through the clamping action between the clamping convex 22 and the clamping groove 15, the second layer sealing effect between the cover plate 2 and the detection shell seat 1 is realized through the first sealing member 17, and the third layer sealing effect between the cover plate 2 and the detection shell seat 1 is realized through the locking action of the buckle member, that is, the sealing performance of the sealing space 16 is ensured through the three layers of sealing effects, so that the sealing performance of the sealing space 16 can be better ensured, and further the accuracy and reliability of the detection result can be ensured.

[0044] Further, as shown in the drawings, Figure 2 and Figure 3As shown, the detection shell seat 1 is also provided with a mounting space and a communication hole 13 in communication, the communication hole 13 is located in the interval between the first accommodating cavity 11 and the second accommodating cavity 12, and the mounting space is located below the first accommodating cavity 11 and the second accommodating cavity 12. The pressure sensor 3 is installed in the mounting space and covers one end of the communication hole 13, so that the pressure sensor 3 can communicate with the sealed space 16 through the communication hole 13, which is conducive to the pressure sensor 3 accurately detecting the pressure value in the sealed space 16. Wherein, the pressure sensor 3 is installed in the mounting space through the fixing seat 4, that is, the fixing seat 4 is fixedly arranged in the mounting space, and the pressure sensor 3 is connected to the fixing seat 4 through bolts.

[0045] Specifically, as shown in the drawings, Figure 2 The top end surface of the pressure sensor 3 and / or the inner top wall surface of the mounting space is provided with a second sealing groove, which is annularly located at the outer periphery of the communication hole 13. The second sealing groove is used for limiting the placement of the second sealing member 18, that is, the second sealing member 18 and the second sealing groove are tightly combined, so that the communication hole 13 can be sealed by the second sealing member 18, thereby avoiding the gas and solution in the sealed space 16 from overflowing outward through the communication hole 13, and further better ensuring the sealing performance of the sealed space 16. In the embodiment, the top end surface of the pressure sensor 3 is provided with the second sealing groove, and the second sealing member 18 can be a sealing ring.

[0046] Further, the groove width of the second sealing groove is 0.4mm-0.6mm larger than the diameter of the second sealing member 18, and the groove depth of the second sealing groove is 0.1mm-0.2mm smaller than the diameter of the second sealing member 18, so that the cooperation between the second sealing groove and the second sealing member 18 is better, thereby better ensuring the sealing effect of the communication hole 13 by the second sealing member 18. In the embodiment, the groove width of the second sealing groove is 0.5mm larger than the diameter of the second sealing member 18, and the groove depth of the second sealing groove is 0.1mm smaller than the diameter of the second sealing member 18.

[0047] Further, the total alkalinity detection device also comprises a stirrer, the stirrer is arranged on the cover plate 2, the stirring shaft of the stirrer extends into the reaction cavity 21, and the stirring shaft can rotate around its axis, so that the stirring shaft can uniformly stir the to-be-detected liquid and the sample liquid, thereby making the to-be-detected liquid and the sample liquid in the reaction cavity 21 fully mixed, ensuring that the to-be-detected liquid and the sample liquid can fully react, and being conducive to ensuring the accuracy and reliability of the detection result. Wherein, the stirrer can adopt the common stirring structure in the prior art.

[0048] Specifically, a third sealing member is arranged between the stirring shaft and the cover plate 2, and the sealing effect between the stirring shaft and the cover plate 2 can be achieved through the third sealing member, so as to avoid the gas and the solution in the sealed space 16 from overflowing outward through the gap between the stirring shaft and the cover plate 2, and further to ensure the sealing property of the sealed space 16. In the embodiment, the third sealing member can be a sealing ring.

[0049] Further, as shown in Figure 1 and Figure 2 , the total alkalinity detection device further comprises an electric control assembly 5 connected in the detection shell seat 1, the electric control assembly 5 is located below the pressure sensor 3, and the electric control assembly 5 is in communication connection with the pressure sensor 3, so as to directly convert the pressure value detected by the pressure sensor 3 into the total alkalinity value through the electric control assembly 5. The electric control assembly 5 is a common electric control structure in the prior art, and the specific structure and electric control principle of the electric control assembly 5 will not be described in detail here.

[0050] The specific working process of the total alkalinity detection device in the embodiment is as follows:

[0051] Firstly, the sample liquid is filled in one of the first accommodating cavity 11 and the second accommodating cavity 12, and the other one is filled with the sample liquid, and the cover plate 2 is arranged on the top end of the detection shell seat 1, so that the clamping convex 22 is clamped in the clamping groove 15, and the first sealing member 17 is tightly clamped in the first sealing groove, and then the cover plate 2 and the detection shell seat 1 are quickly buckled through the buckle, so as to form the sealed space 16 between the cover plate 2 and the detection shell seat 1.

[0052] Then, the cover plate 2 and the detection shell seat 1 are inverted and locked, so that the sample liquid and the sample liquid in the first accommodating cavity 11 and the second accommodating cavity 12 automatically flow into the reaction cavity 21 of the cover plate 2, so that the sample liquid and the sample liquid can be mixed; at the same time, the stirring shaft stirs the sample liquid and the sample liquid, so that the sample liquid and the sample liquid can be fully reacted to produce gas, and the pressure in the sealed space 16 increases.

[0053] Finally, the pressure value in the sealed space 16 is detected by the pressure sensor 3, and the pressure sensor 3 feeds back the detected pressure value to the electric control assembly 5, so as to directly convert the pressure value detected by the pressure sensor 3 into the total alkalinity value through the electric control assembly 5; so as to complete the whole detection process of the total alkalinity of the alkaline substance contained in the sample liquid.

[0054] The total base number detection device in the embodiment can guarantee the better sealing performance of the sealed space 16 formed between the cover plate 2 and the detection shell seat 1 through the three-layer sealing action between the cover plate 2 and the detection shell seat 1, so that the outward overflow of the liquid to be detected and the sample liquid can be avoided when the cover plate 2 and the detection shell seat 1 are inverted; and the outward overflow of the gas generated in the reaction of the liquid to be detected and the sample liquid can be avoided in the reaction process of the liquid to be detected and the sample liquid, so that the accuracy and reliability of the detection result can be guaranteed; and the mixing of the liquid to be detected and the sample liquid is directly inverted, the operation is simple and convenient, and the detection efficiency can be improved.

[0055] The above is only a preferred embodiment of the present application, and for those skilled in the art, according to the idea of the present application, the specific implementation and application range will be changed, and the content of the specification should not be understood as a limitation of the present application.

Claims

1. A total alkalinity detection device, characterized in that, include: The detection housing (1) has a first receiving cavity (11) and a second receiving cavity (12) spaced apart inside. One of the first receiving cavity (11) and the second receiving cavity (12) is used to contain the liquid to be tested, and the other is used to contain the sample liquid. The sample liquid can react chemically with the liquid to be tested to generate gas. The cover plate (2) has a reaction chamber (21) that communicates with the first receiving cavity (11) and the second receiving cavity (12). The cover plate (2) is sealed on the detection housing (1) so that a sealed space (16) is formed between the first receiving cavity (11), the second receiving cavity (12) and the reaction chamber (21). When the detection housing (1) and the cover plate (2) are inverted, the liquid to be tested and the sample liquid flow into the reaction chamber (21) to mix and react. A pressure sensor (3) is connected to the detection housing (1) and communicates with the sealed space (16). The pressure sensor (3) is used to detect the pressure value in the sealed space (16).

2. The total alkalinity detection device as described in claim 1, characterized in that, The top surface of the detection housing (1) and the bottom surface of the cover plate (2) are provided with a groove (15) in one ring and a protrusion (22) in the other ring. The protrusion (22) can be engaged in the groove (15).

3. The total alkalinity detection device as described in claim 1, characterized in that, The top surface of the detection housing (1) and / or the bottom surface of the cover plate (2) are provided with a first sealing groove, which is used to limit the placement of the first sealing element (17).

4. The total alkalinity detection device as described in claim 3, characterized in that, The width of the first sealing groove is 0.4mm-0.6mm larger than the diameter of the first sealing element (17), and the depth of the first sealing groove is 0.1mm-0.2mm smaller than the diameter of the first sealing element (17).

5. The total alkalinity detection device as described in claim 1, characterized in that, The total alkalinity detection device also includes: The fastener has one end connected to the outer wall of the detection housing (1) and the other end connected to the outer wall of the cover plate (2). The fastener is used to fasten or loosen the cover plate (2) and the detection housing (1).

6. The total alkalinity detection device according to any one of claims 1-5, characterized in that, The detection housing (1) is further provided with a connected installation space and a connecting hole (13). The connecting hole (13) is located in the space between the first receiving cavity (11) and the second receiving cavity (12). The installation space is located below the first receiving cavity (11) and the second receiving cavity (12). The pressure sensor (3) is installed in the installation space and covers one end of the connecting hole (13).

7. The total alkalinity detection device as described in claim 6, characterized in that, The pressure sensor (3) has a second sealing groove on its top surface and / or the inner top wall of the mounting space. The second sealing groove is located annularly on the outer periphery of the connecting hole (13). The second sealing groove is used to limit the placement of the second sealing element (18).

8. The total alkalinity detection device as described in claim 7, characterized in that, The width of the second sealing groove is 0.4mm-0.6mm larger than the diameter of the second sealing element (18), and the depth of the second sealing groove is 0.1mm-0.2mm smaller than the diameter of the second sealing element (18).

9. The total alkalinity detection device according to any one of claims 1-5, characterized in that, The total alkalinity detection device also includes: A stirrer is provided on the cover plate (2), the stirring shaft of the stirrer extends into the reaction chamber (21), the stirring shaft can rotate around its axis, and a third sealing element is provided between the stirring shaft and the cover plate (2).

10. The total alkalinity detection device according to any one of claims 1-5, characterized in that, The total alkalinity detection device also includes: An electronic control component (5) is connected inside the detection housing (1) and located below the pressure sensor (3). The electronic control component (5) is communicatively connected to the pressure sensor (3).

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