Multifunctional detachable sodium percarbonate active oxygen content measuring device

Abstract

The utility model belongs to the technical field of detection devices, and particularly relates to a multifunctional detachable sodium percarbonate active oxygen content measuring device which comprises a weighing base, a weighing tray, a reaction generation tank, a first connector and a drying mechanism, the reaction generation tank comprises a cylindrical lower tank body and a truncated cone-shaped upper tank body, and the diameter of the bottom surface of the upper tank body is larger than that of the top surface of the upper tank body; the bottom end of the upper tank body is communicated with the top end of the lower tank body, and the bottom end of the lower tank body is sealed; a connector is arranged at the top end of an upper tank body of the reaction generation tank and is of a hollow tubular structure, and the bottom end of the connector is communicated with the top end of the upper tank body; the first connector is of a hollow tubular structure, the upper end and the lower end of the first connector are open, and the bottom end of the first connector is detachably connected with the connector. By designing the detachable structures such as the first connector, the reaction generation tank and the weighing tray, the reactive oxygen in the sodium percarbonate can be simply and quickly measured, and the device is simple in overall structure and convenient to operate.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection devices, and particularly relates to a multifunctional detachable sodium percarbonate active oxygen content measuring device. Background Art

[0002] Sodium percarbonate, also known as sodium peroxycarbonate or solid hydrogen peroxide, has bleaching and antiseptic properties and is widely used as a detergent raw material. It has become one of the most widely used detergent additives worldwide. It readily decomposes into H2O2 and Na2CO3 upon contact with water, releasing oxygen. Therefore, its performance can be evaluated simply by determining its oxygen content. The higher the active oxygen content in the sodium percarbonate, the stronger its disinfecting and cleaning properties.

[0003] The current national industry standard for the determination of active oxygen content in sodium percarbonate not only requires high professionalism from the testers, but also involves reagents such as sulfuric acid, a nationally controlled drug, and potassium permanganate, an explosive-making chemical. It is not suitable for ordinary factories or households to measure it. However, many aquatic products and daily chemical industries need to measure the active oxygen content. In the absence of specific experimental equipment, they can only make simple judgments through the imprecise method of blowing balloons or bottles. This method is too rough and is greatly affected by the surrounding environment and the air permeability of the balloon. Therefore, there is an urgent need to find a simple and feasible method for determining active oxygen in sodium percarbonate.

[0004] Chinese patent application number CN208953515U discloses a device for rapidly measuring active oxygen in sodium percarbonate. The device comprises a U-shaped tube, a U-shaped tube plug, and a U-shaped tube support. A connecting mechanism is provided to allow the U-shaped tube to be statically connected to a rod mounted on top of a support column. The structural characteristics of the U-shaped tube are utilized to rapidly measure the active oxygen content in sodium percarbonate. While the device described in this patent can rapidly measure the active oxygen content in sodium percarbonate, it still has certain limitations, as it requires a dedicated U-shaped tube with scale lines for active oxygen measurement.

[0005] Based on this, the utility model proposes a device for measuring the content of active oxygen, which not only avoids the disadvantage of requiring the use of controlled drugs for measurement in the national industry standard quality inspection standards, but also adopts a simple and commonly used structure. The overall device is simple to build, which is convenient for measuring the active oxygen in sodium percarbonate. Utility Model Content

[0006] The utility model provides a multifunctional detachable sodium percarbonate active oxygen content measuring device. By designing a detachable first connector, a reaction generating tank, a weighing tray and other structures, the device can realize a simple and rapid measurement of active oxygen in sodium percarbonate. The overall structure is simple and the operation is convenient.

[0007] Based on the above purpose, the present invention adopts the following technical solutions:

[0008] A multifunctional detachable sodium percarbonate active oxygen content measuring device comprises a weighing base, a weighing tray, a reaction generating tank, a first connector, and a drying mechanism;

[0009] The reaction tank comprises a cylindrical lower tank body and a truncated cone-shaped upper tank body, wherein the bottom diameter of the upper tank body is larger than the top diameter; the bottom end of the upper tank body is connected to the top end of the lower tank body, and the bottom end of the lower tank body is sealed;

[0010] The top of the upper tank body of the reaction tank is provided with a connector, which is a hollow tubular structure, and the bottom end of the connector is connected to the top of the upper tank body;

[0011] The first connector is a hollow tubular structure with openings at both ends, and the bottom end of the first connector is detachably connected to the connector;

[0012] The top end of the first connector is detachably connected to the connecting tube;

[0013] A cylindrical groove is provided in the middle of the top of the weighing base, and a first gravity sensor is provided in the middle of the bottom of the groove;

[0014] A plurality of second gravity sensors are also provided at the bottom of the groove near the side wall of the groove;

[0015] The front end of the weighing base is also provided with a display and an operation panel; the weighing base is also provided with a weighing controller;

[0016] The weighing controller includes an A / D signal processing module with signal amplification and filtering functions, a central processing unit control module, a display control module and a key control module for controlling the entire weighing controller;

[0017] The weighing controller can be controlled and connected with the first gravity sensor or the second gravity sensor to realize the weighing function of the reaction tank and / or the weighing tray, and can display the weighing result on the display;

[0018] The weighing tray can be embedded in the groove and mounted at the notch of the groove;

[0019] The reaction tank can be placed on top of the weighing tray.

[0020] Specifically, the upper tank body and the lower tank body are integrally formed.

[0021] Specifically, the bottom end of the connector is connected to the top end of the upper tank body by welding or bonding.

[0022] Specifically, an inner bolt is provided at the top of the connecting head, and an outer thread is provided at the bottom end of the first connector, and a detachable connection is achieved by the threaded matching connection between the connecting head and the first connector.

[0023] Specifically, the diameter of the connecting tube gradually increases from the bottom end to the top end, the diameter of the bottom end of the connecting tube is slightly smaller than the diameter of the opening at the top end of the first connector, and the bottom end of the connecting tube is plugged into the top end of the first connector.

[0024] Specifically, an exhaust safety pipe is provided at the right end of the first connector, and an exhaust safety valve is provided on the exhaust safety pipe.

[0025] Further preferably, the plurality of second gravity sensors are distributed in the groove and surround the first gravity sensor in front, behind, left and right directions, and the first gravity sensor and the second gravity sensor are both cylindrical.

[0026] Specifically, there are four second gravity sensors.

[0027] Specifically, the first gravity sensor and the second gravity sensor are connected to the A / D signal processing module, and the first gravity sensor and the second gravity sensor can sense the weight of the reaction tank and / or the weighing tray, and convert them into analog signals of voltage or current, and transmit them to the A / D signal processing module;

[0028] The A / D signal processing module is connected to the central processing unit control module by signal, and the A / D signal processing module can convert the received analog signal into a digital signal after amplification and filtering, and transmit it to the central processing unit control module;

[0029] The central processing unit control module is connected to the display control module by signal, and the central processing unit control module is capable of calculating and processing the received digital signals, converting them into digital signals that can be received by the display control module, and then transmitting them to the display control module;

[0030] The display control module is connected to the display signal and is capable of transmitting the received digital signal to the display for display;

[0031] The button control module is connected to the central processing unit control module by signal, and the button control module can send a calculation instruction signal such as opening or closing, returning to zero, etc. to the central processing unit control module;

[0032] The operation panel includes common buttons such as switch, zero return, and tare, and the buttons on the operation panel are all electrically connected to the button control module.

[0033] Specifically, the working principle of the weighing controller is: the first gravity sensor or the second gravity sensor converts the received weight into an analog signal of voltage or current and transmits it to the weighing controller. The analog signal is amplified and filtered and then output to the A / D signal processing module, which converts it into a digital signal that is easy to process and outputs it to the central processing unit control module. The central processing unit control module outputs the output result to the display through the display control module according to the command issued by the key control module on the operation panel.

[0034] In the present invention, the first gravity sensor, the second gravity sensor, and the weighing controller can all adopt conventional equipment or conventional structures in the prior art, and their structure and signal transmission method are not the inventive point of the present invention, so they will not be described in detail.

[0035] The first gravity sensor and the second gravity sensor in the present invention may be of the model CXWZ-102 103106, LCZ-202H, Japanese MTO LCM4, etc.

[0036] The weighing controller in this utility model can adopt models such as PLAC-5100-S / C, PLAC-5103, and PLAC-5200.

[0037] Specifically, the weighing tray includes a cylindrical first clamping portion and a second clamping portion provided at the top end of the first clamping portion;

[0038] The diameter of the first clamping portion is consistent with the diameter of the groove (or the diameter of the first clamping portion is slightly smaller than the diameter of the groove);

[0039] The second clamping portion is a truncated cone-shaped structure with a bottom diameter smaller than a top diameter, and the bottom diameter of the second clamping portion is consistent with the diameter of the first clamping portion.

[0040] Further preferably, in order to prevent the weighing tray and the weighing base from having a large displacement and causing inaccurate weighing, a left stopper is provided at the top of the weighing base near the left wall of the groove, and a right stopper is provided at the top of the weighing base near the right wall of the groove; the diameter of the top surface of the second clamping portion is greater than the distance between the left stopper and the right stopper;

[0041] Further preferably, the left stopper and the right stopper are both in the shape of a cuboid, and an embedding channel is formed between the left stopper and the right stopper, through which the first clamping portion of the weighing tray passes; the diameter of the first clamping portion is less than or equal to the distance between the left stopper and the right stopper;

[0042] The distance between the bottom surface of the second clamping portion and the bottom of the groove is greater than or equal to the sum of the height of the left stopper (or the right stopper) and the height of the first gravity sensor (or the second gravity sensor);

[0043] When the first clamping portion is embedded from the top of the embedding channel, the left stopper and the right stopper can limit the position of the weighing tray relative to the weighing base.

[0044] Further preferably, in order to prevent the reaction tank from falling from the top of the weighing tray, a limiting ring is further provided at the top edge of the second clamping part, wherein the inner diameter of the limiting ring is greater than or equal to the outer diameter of the reaction tank, thereby facilitating the placement of reaction tanks of different sizes on the top of the weighing tray.

[0045] Specifically, as a preferred embodiment, the drying mechanism is a drying bottle with a connecting tube at the bottom end.

[0046] Further preferably, the top of the drying bottle is open, and two layers of screens are provided in the drying bottle near the connection between the bottom and the connecting tube, with silica gel particles sandwiched between the two layers of screens. After the reaction occurs, oxygen mixed with water vapor floats upward together. The hygroscopic properties of the silica gel can effectively absorb the water vapor to prevent moisture overflow from affecting the measurement results. At the same time, when the moisture in the silica gel particles reaches an excessive amount, the silica gel turns red, indicating that the silica gel needs to be replaced. Finally, the oxygen content generated in the reaction tank is calculated by the weight loss.

[0047] Specifically, as another preferred embodiment, the drying mechanism is an S-shaped return one-way pipe with a connecting pipe at the bottom end.

[0048] Further preferably, dodecanol ester is placed in the S-shaped loop one-way tube. Dodecanol ester has a boiling point of 248°C, a slow volatilization rate, low water solubility, and a density lighter than water. It will cool the water vapor and retain it at the bottom of the dodecanol ester, thereby preventing the water vapor in the reaction from evaporating into the external environment. When the water vapor reaches a certain amount, the water and dodecanol ester can be separated using an ordinary separatory funnel, and the dodecanol ester can be reused.

[0049] The beneficial effects of the utility model are:

[0050] The utility model can realize the simple and rapid determination of active oxygen in sodium percarbonate by designing structures such as a detachable first connector, a reaction generating tank, and a weighing tray, which not only avoids the disadvantage of requiring the use of controlled drugs for determination in national industry standard quality inspection standards, but also adopts a simple and commonly used structure, the overall structure is non-hazardous, the overall device is simple to build, and it is convenient to determine the active oxygen in sodium percarbonate.

[0051] The utility model has the characteristics of simple structure, convenient use and easy assembly and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 is a schematic diagram of the multifunctional detachable sodium percarbonate measuring device described in Example 1;

[0053] Figure 2 Schematic diagram of the multifunctional detachable sodium percarbonate measuring device described in Example 2. DETAILED DESCRIPTION

[0054] To make the above-mentioned objectives, technical features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in a variety of other ways than those described herein, and those skilled in the art may make similar improvements without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0055] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0056] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense; for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] Example 1

[0058] like Figure 1 As shown, a multifunctional detachable sodium percarbonate active oxygen content measuring device includes a weighing base 6, a weighing tray, a reaction tank 4, a first connector 3, and a drying mechanism 1;

[0059] The reaction tank 4 includes a cylindrical lower tank body and a truncated cone-shaped upper tank body, wherein the bottom diameter of the upper tank body is larger than the top diameter; the bottom end of the upper tank body is connected to the top end of the lower tank body, and the bottom end of the lower tank body is sealed; specifically, in this embodiment, the upper tank body and the lower tank body are integrally formed;

[0060] The top of the upper tank body of the reaction tank 4 is provided with a connector 41 , which is a hollow tubular structure, and the bottom end of the connector 41 is connected to the top of the upper tank body by welding or bonding.

[0061] The first connector 3 is a hollow tubular structure with openings at both ends. The bottom end of the first connector 3 is detachably connected to the connecting head 41. Specifically, an internal bolt is provided at the top of the connecting head 41, and an external thread is provided at the bottom end of the first connector 3. The detachable connection is achieved through the threaded cooperation between the connecting head 41 and the first connector 3.

[0062] In this embodiment, the drying mechanism 1 is a drying bottle with a connecting tube 2 at the bottom end;

[0063] The top of the drying bottle is open, and two layers of screen 11 are provided in the drying bottle near the bottom end and the connection with the connecting pipe 2. Silica gel particles are sandwiched between the two layers of screen 11. After the reaction occurs, oxygen mixed with water vapor floats upward. The hygroscopic property of silica gel can effectively absorb water vapor to prevent moisture overflow from affecting the measurement results. At the same time, when the moisture in the silica gel particles reaches excessive, the silica gel turns red, indicating that the silica gel needs to be replaced. Finally, the oxygen content generated in the reaction tank 4 is calculated by weight loss.

[0064] The top end of the first connector 3 is detachably connected to the connecting tube 2. Specifically, the diameter of the connecting tube 2 gradually increases from the bottom end to the top end. The diameter of the bottom end of the connecting tube 2 is slightly smaller than the diameter of the top opening of the first connector 3, and the bottom end of the connecting tube 2 is plugged into the top end of the first connector 3; the right end of the first connector 3 is provided with an exhaust safety tube 31, and the exhaust safety tube 31 is provided with an exhaust safety valve 32.

[0065] The top of the weighing base 6 is provided with a cylindrical groove in the middle ( Figure 1 The figure shows a cross-sectional view of the groove), a first gravity sensor 61 is provided in the middle of the bottom of the groove, which can sense the weight of the reaction tank 4 and / or the weighing tray;

[0066] Further preferably, a plurality of second gravity sensors 62 are provided at the bottom of the groove near the side wall of the groove;

[0067] The plurality of second gravity sensors 62 are distributed in the groove and surround the first gravity sensor 61 in front, behind, left and right directions. The first gravity sensor 61 and the second gravity sensor 62 are both cylindrical. Specifically, in this embodiment, there are four second gravity sensors 62.

[0068] The front end of the weighing base 6 is also provided with a display 65 and an operation panel 66; the weighing base 6 is also provided with a weighing controller (not shown in the figure);

[0069] The weighing controller comprises an A / D signal processing module with signal amplification and filtering functions, a central processing unit control module, a display control module and a key control module for controlling the entire weighing controller.

[0070] The first gravity sensor 61 and the second gravity sensor 62 are connected to the A / D signal processing module, and the first gravity sensor 61 and the second gravity sensor 62 can sense the weight of the reaction tank 4 and / or the weighing tray, and convert it into an analog signal of voltage or current, and transmit it to the A / D signal processing module;

[0071] The A / D signal processing module is connected to the central processing unit control module by signal, and the A / D signal processing module can convert the received analog signal into a digital signal after amplification and filtering, and transmit it to the central processing unit control module;

[0072] The central processing unit control module is connected to the display control module by signal, and the central processing unit control module is capable of calculating and processing the received digital signals, converting them into digital signals that can be received by the display control module, and then transmitting them to the display control module;

[0073] The display control module is connected to the display 65 signal and can transmit the received digital signal to the display 65 for display;

[0074] The button control module is connected to the central processing unit control module by signal, and the button control module can send a calculation instruction signal such as opening or closing, returning to zero, etc. to the central processing unit control module;

[0075] The operation panel 66 includes common buttons such as switch, zero return, and tare, and the buttons on the operation panel 66 are all electrically connected to the button control module.

[0076] The working principle of the weighing controller is as follows: the first gravity sensor 61 or the second gravity sensor 62 converts the received weight into an analog signal of voltage or current and transmits it to the weighing controller. The analog signal is amplified and filtered and then output to the A / D signal processing module, which converts it into a digital signal that is easy to process and outputs it to the central processing unit control module. The central processing unit control module outputs the output result to the display 65 through the display control module according to the command issued by the key control module through the operation panel 66.

[0077] The main function of the weighing controller is to control the connection with the first gravity sensor 61 or the second gravity sensor 62 to realize the weighing function of the reaction tank 4 and / or the weighing tray, and at the same time display the weighing result through the display 65.

[0078] In the present invention, the first gravity sensor 61, the second gravity sensor 62, and the weighing controller can all adopt conventional equipment or conventional structures in the prior art, and their structure and signal transmission method are not the inventive point of the present invention, so they will not be described in detail.

[0079] The first gravity sensor 61 and the second gravity sensor 62 in the present invention may be of the following models: CXWZ-102103106, LCZ-202H, Japanese MTO LCM4, etc.

[0080] The weighing controller in this utility model can adopt models such as PLAC-5100-S / C, PLAC-5103, and PLAC-5200.

[0081] The weighing tray includes a cylindrical first clamping portion 51 and a second clamping portion 52 provided at the top of the first clamping portion 51;

[0082] The diameter of the first clamping portion 51 is consistent with the diameter of the groove (or the diameter of the first clamping portion 51 is slightly smaller than the diameter of the groove);

[0083] The second clamping portion 52 is a truncated cone-shaped structure with a bottom diameter smaller than a top diameter, and the bottom diameter of the second clamping portion 52 is consistent with the diameter of the first clamping portion 51;

[0084] Furthermore, in order to prevent the weighing tray and the weighing base 6 from having a large displacement, which would cause inaccurate weighing, a left stopper 63 is provided at the top of the weighing base 6 near the left wall of the groove, and a right stopper 64 is provided at the top of the weighing base 6 near the right wall of the groove; the diameter of the top surface of the second clamping portion 52 is greater than the distance between the left stopper 63 and the right stopper 64;

[0085] Specifically, in this embodiment, the left stopper 63 and the right stopper 64 are both in the shape of a rectangular parallelepiped, and an embedding channel for the first clamping portion 51 of the weighing tray to pass through is formed between the left stopper 63 and the right stopper 64; the diameter of the first clamping portion 51 is less than or equal to the distance between the left stopper 63 and the right stopper 64;

[0086] The distance between the bottom surface of the second clamping portion 52 and the bottom of the groove is greater than or equal to the sum of the height of the left stopper 63 (or the right stopper 64) and the height of the first gravity sensor 61 (or the second gravity sensor 62);

[0087] When the first clamping portion 51 is inserted into the weighing channel from the top, the left stopper 63 and the right stopper 64 can limit the position of the weighing tray relative to the weighing base 6 .

[0088] Furthermore, in order to prevent the reaction tank 4 from falling from the top of the weighing tray, a limiting ring 53 is further provided at the top edge of the second clamping portion 52 ( Figure 1 The figure shows a cross-sectional view of the limiting ring 53, wherein the inner diameter of the limiting ring 53 is greater than or equal to the outer diameter of the reaction tank 4, so that different sizes of reaction tanks 4 can be placed on the top of the weighing tray.

[0089] The method of using the utility model is as follows:

[0090] When it is necessary to measure the active oxygen content of sodium percarbonate in the reaction tank 4, before the experiment, the first clamping portion 51 of the weighing tray is first placed on top of the first gravity sensor 61 and the second gravity sensor 62 through the embedding channel. At this time, the left stopper 63 and the right stopper 64 can be clamped on the left and right ends of the first clamping portion 51, and limit the left and right position of the weighing tray relative to the weighing base 6 to prevent the weighing tray from shaking or moving relative to the weighing base 6;

[0091] Then connect the bottom end of the first connector 3 to the top end of the connector 41, place silica gel particles between the two layers of screen 11 in the drying mechanism 1 (drying bottle), and then plug the drying mechanism 1 into the top end of the first connector 3 through the connecting pipe 2. At this time, the exhaust safety valve 32 is in the closed state;

[0092] Then place the reaction tank 4 on the top of the weighing tray; then, the weight of the weighing tray is converted into an analog signal of voltage or current through the first gravity sensor 61 and the second gravity sensor 62. The analog signal is amplified and filtered, and then converted into a digital signal by the A / D processing module. The digital signal is then calculated by the central processing unit control module and transmitted to the display 65 through the display control module, which is the total weight of the reaction tank 4 and the weighing tray before the experiment.

[0093] During the experiment, the tare is first performed through the operation panel 66, and then the drying mechanism 1 is removed. The reactants are added to the reaction tank 4 from the top of the first connector 3. Specifically, 10.00g of sodium percarbonate, 1.00g of manganese dioxide, and 150g of normal temperature water (20°C) are added in sequence. Then, the drying mechanism 1 is plugged into the top of the first connector 3 through the connecting tube 2, and the weight at this time is sensed by the first gravity sensor 61 and the second gravity sensor 62. After weighing by the weighing controller, the weighing result is displayed on the display 65 at the same time, and the reading W1 of the display 65 is recorded.

[0094] After the reaction occurs, oxygen mixed with water vapor floats upward. The hygroscopic property of silica gel can effectively absorb the water vapor to prevent moisture overflow from affecting the measurement results. After a period of reaction (30 minutes), when the reading no longer changes, record the reading W2 of the display 65 at this time. The difference before and after the reaction is the mass of oxygen released in the reaction.

[0095] Then, the oxygen content in sodium percarbonate is calculated using the following formula:

[0096]

[0097] After testing, the experimental results can meet the industry standard "HG T 2764-1996 Industrial Sodium Percarbonate", and the testing method of the utility model has good practicality.

[0098] The utility model can realize the simple and rapid determination of active oxygen in sodium percarbonate by designing the detachable first connector 3, the reaction generating tank 4, the weighing tray and other structures, which not only avoids the disadvantage of requiring the use of controlled drugs for determination in the national industry standard quality inspection standard, but also adopts a simple and commonly used structure, the overall structure is non-hazardous, the overall device is simple to build, and it is convenient to determine the active oxygen in sodium percarbonate.

[0099] Example 2

[0100] like Figure 2 As shown, the multifunctional detachable sodium percarbonate measuring device of Example 2 is different from that of Example 1 in that the drying mechanism 1 is an S-shaped return one-way tube 1 with a connecting tube 2 at the bottom end;

[0101] The S-shaped loop one-way tube 1 is filled with dodecyl alcohol ester. Dodecyl alcohol ester has a boiling point of 248°C, a slow volatilization rate, low water solubility, and a density lighter than water. It will cool the water vapor and retain it at the bottom of the dodecyl alcohol ester, thereby preventing the water vapor in the reaction from evaporating into the external environment. When the water vapor reaches a certain amount, the water and dodecyl alcohol ester can be separated using an ordinary separatory funnel, and the dodecyl alcohol ester can be reused.

[0102] In Example 2, after the reaction occurs, oxygen mixed with water vapor floats upward, and the dodecyl alcohol ester in the S-shaped one-way tube 1 is used to prevent the water vapor from being discharged to the outside. After the reaction is allowed to proceed for a period of time, the difference between the reaction tank 4 and the weighing tray before and after the reaction is measured by the weighing base 6, and the oxygen content of the sodium percarbonate can be calculated.

[0103] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A multifunctional detachable sodium percarbonate active oxygen content measuring device, characterized in that: It includes a weighing base, a weighing tray, a reaction generating tank, a first connector, and a drying mechanism; The reaction tank comprises a cylindrical lower tank body and a truncated cone-shaped upper tank body, wherein the bottom diameter of the upper tank body is larger than the top diameter; the bottom end of the upper tank body is connected to the top end of the lower tank body, and the bottom end of the lower tank body is sealed; The top of the upper tank body of the reaction tank is provided with a connector, which is a hollow tubular structure, and the bottom end of the connector is connected to the top of the upper tank body; The first connector is a hollow tubular structure with openings at both ends, and the bottom end of the first connector is detachably connected to the connector; The top end of the first connector is detachably connected to the connecting tube; A cylindrical groove is provided in the middle of the top of the weighing base, and a first gravity sensor is provided in the middle of the bottom of the groove; A plurality of second gravity sensors are also provided at the bottom of the groove near the side wall of the groove; The front end of the weighing base is also provided with a display and an operation panel; the weighing base is also provided with a weighing controller; The weighing controller includes an A / D signal processing module with signal amplification and filtering functions, a central processing unit control module, a display control module and a key control module for controlling the entire weighing controller; The weighing controller can be controlled and connected with the first gravity sensor or the second gravity sensor to realize the weighing function of the reaction tank and / or the weighing tray, and can display the weighing result on the display; The weighing tray can be embedded in the groove and mounted at the notch of the groove; The reaction tank can be placed on top of the weighing tray.

2. The multifunctional detachable sodium percarbonate active oxygen content measuring device according to claim 1, wherein The diameter of the connecting tube gradually increases from the bottom to the top. The diameter of the bottom of the connecting tube is slightly smaller than the diameter of the opening at the top of the first connector, and the bottom of the connecting tube is plugged into the top of the first connector.

3. The multifunctional detachable sodium percarbonate active oxygen content measuring device according to claim 1, wherein The plurality of second gravity sensors are all distributed in the groove and surround the first gravity sensor in front, behind, left and right directions. The first gravity sensor and the second gravity sensor are both cylindrical.

4. The multifunctional detachable sodium percarbonate active oxygen content measuring device according to claim 1, wherein The first gravity sensor and the second gravity sensor are connected to the A / D signal processing module, and the first gravity sensor and the second gravity sensor are capable of sensing the weight of the reaction tank and / or the weighing tray, converting the weight into an analog signal of voltage or current, and transmitting the analog signal to the A / D signal processing module; The A / D signal processing module is connected to the central processing unit control module by signal, and the A / D signal processing module can convert the received analog signal into a digital signal after amplification and filtering, and transmit it to the central processing unit control module; The central processing unit control module is connected to the display control module by signal, and the central processing unit control module is capable of calculating and processing the received digital signals, converting them into digital signals that can be received by the display control module, and then transmitting them to the display control module; The display control module is connected to the display signal and is capable of transmitting the received digital signal to the display for display; The button control module is connected to the central processing unit control module by signal, and the button control module can send an opening or closing, or zeroing calculation instruction signal to the central processing unit control module; The operation panel includes a switch, a zero return, and a tare button, and the buttons on the operation panel are all electrically connected to the button control module.

5. The multifunctional detachable sodium percarbonate active oxygen content measuring device according to claim 1, wherein The weighing tray includes a cylindrical first clamping portion and a second clamping portion arranged at the top of the first clamping portion; The second clamping portion is a truncated cone-shaped structure with a bottom diameter smaller than a top diameter, and the bottom diameter of the second clamping portion is consistent with the diameter of the first clamping portion.

6. The multifunctional detachable sodium percarbonate active oxygen content measuring device according to claim 1, characterized in that: A left stopper is provided at the top of the weighing base near the left wall of the groove, and a right stopper is provided at the top of the weighing base near the right wall of the groove; the diameter of the top surface of the second clamping portion is greater than the distance between the left stopper and the right stopper.

7. The multifunctional detachable sodium percarbonate active oxygen content measuring device according to claim 1, characterized in that: The left stopper and the right stopper are both in the shape of a cuboid, and an embedding channel is formed between the left stopper and the right stopper for the first clamping portion of the weighing tray to pass through; the diameter of the first clamping portion is less than or equal to the distance between the left stopper and the right stopper.

8. The multifunctional detachable sodium percarbonate active oxygen content measuring device according to claim 1, characterized in that: A limiting ring is further provided at the top edge of the second clamping portion, wherein the inner diameter of the limiting ring is greater than or equal to the outer diameter of the reaction tank.

9. The multifunctional detachable sodium percarbonate active oxygen content measuring device according to claim 1, characterized in that: The drying mechanism is a drying bottle with a connecting tube at the bottom end; The top of the drying bottle is open, and two layers of screens are arranged in the drying bottle near the connection between the bottom and the connecting pipe, with silica gel particles sandwiched between the two layers of screens.

10. The multifunctional detachable sodium percarbonate active oxygen content measuring device according to claim 1, characterized in that: The drying mechanism is an S-shaped one-way tube with a connecting tube at the bottom end; and dodecyl alcohol ester is placed in the S-shaped one-way tube.

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