A metered dose dispenser with moisture-proof, temperature-controlled and light-tight features

Abstract

To provide a drug administration device with moisture-proof, temperature-controlled, and light-blocking functions. [Solution] The device includes a bottle mouth dispenser 1, an ammonium molybdate solution bottle 2, a temperature controller 3, and an insulating box 7, the insulating box includes a box body and a box cover, the box cover is rotatably fixed to one side of the box body, the temperature controller is installed in the insulating box and used for controlling the temperature, the ammonium molybdate solution bottle is placed in the box body, the bottle mouth dispenser is installed above the box body, the upper side of the box body is provided with a through hole, the bottle mouth liquid dispenser is connected to the ammonium molybdate solution bottle through the through hole and used for quantitatively collecting ammonium molybdate solution, and the insulating box is further provided with a drying structure for controlling the humidity in the insulating box.

Description

Technical Field

[0001] The present invention relates to the technical field of steam analysis in power plants, and particularly to a reagent metering device with functions of moisture prevention, temperature control, and light shielding.

Background Art

[0002] In the current method for measuring the silica content in steam analysis of power plants, it is necessary to use ammonium molybdate solution as a reagent. The tester found that the reagent is prone to precipitation problems, and when the precipitate enters the water sample to be measured, it will affect the final measurement result. Therefore, when the tester investigated the properties of ammonium molybdate solution, it was found that ammonium molybdate decomposes when left standing for a long time, generating a precipitate of white molybdenum trioxide. The reaction formula is as follows.

Number

[0003] Therefore, it is necessary to limit the storage conditions of ammonium molybdate solution. Due to its poor stability and short storage period, it needs to be placed in a dry, well-ventilated, cool and dark place, and the storage temperature is usually 0°C to 5°C. Therefore, the tester stores the ammonium molybdate solution in a refrigerator, takes it out when titration is required, opens the upper lid to collect the liquid with a pipette, closes the lid again after the test, and returns it to the refrigerator. However, due to the temperature difference when entering and leaving the refrigerator, there is still precipitate. At the startup stage of the unit, it is necessary to monitor the silica content in the steam for 24 hours. Frequent opening and closing of the upper lid of the ammonium molybdate solution bucket, frequent cleaning of the pipette, and frequent taking out and returning from the refrigerator are very inconvenient. Therefore, the problem of frequently preparing a new ammonium molybdate solution cannot be completely solved.

[0004] The current method for preparing ammonium molybdate solution is to dissolve 75 g of solid ammonium molybdate in water, pour it into a 1-L volumetric flask, and make up the volume. Once the ammonium molybdate is completely dissolved, pour the prepared solution into a white PE plastic bucket with a lid. According to the current frequency of silica measurement in power plants, the monthly usage is about 200 mL, which means that 800 mL of ammonium molybdate solution is wasted every month. Currently, the market price of 500 g of analytical-grade ammonium molybdate in the country is about 100 yuan per bottle, which is relatively expensive. Therefore, in order to extend the storage period of the ammonium molybdate solution and reduce waste, it is necessary to transform and design the storage environment of the ammonium molybdate solution.

Summary of the Invention

Means for Solving the Problems

[0005] The object of the present invention is to provide a drug metering device with functions of moisture-proof, temperature control, and light shielding in order to overcome the drawbacks of the prior art that it is necessary to frequently prepare ammonium molybdate solution, inconvenient for storage, prone to waste, and increasing costs.

[0006] The object of the present invention may be achieved by the following technical solutions.

[0007] A drug metering device with functions of moisture-proof, temperature control, and light shielding, comprising a liquid dispenser at the bottle mouth, an ammonium molybdate solution bottle, a temperature controller, and a heat-insulating box. The heat insulation box includes a box body and a box cover, the box cover is rotatably fixed to one side of the box body, the temperature controller is provided inside the heat insulation box and is used to control the temperature, the ammonium molybdate solution bottle is placed inside the box body, the liquid dispenser at the bottle mouth is provided above the box body, a through hole is provided on the upper side of the box body, the liquid dispenser at the bottle mouth is connected to the ammonium molybdate solution bottle through the through hole and is used to quantitatively collect the ammonium molybdate solution, and the heat insulation box is further provided with a drying structure for controlling the humidity inside the heat insulation box.

[0008] Preferably, the device further includes a display screen, a program control panel, and adjustment buttons. The display screen is fixed to the outside of the box cover, the temperature controller is connected to the display screen, and the program control panel is connected to the temperature controller and the liquid dispenser at the bottle mouth respectively and is used to control the temperature inside the heat insulation box and the sampling amount of the ammonium molybdate solution.

[0009] Preferably, the drying structure includes a desiccant case and a desiccant. A fixing groove adapted to the desiccant case is provided inside the box cover, the desiccant case is removably fixed in the fixing groove, and the desiccant is placed inside the desiccant case.

[0010] Preferably, a punching structure is provided on the side of the desiccant case close to the box body.

[0011] Preferably, the desiccant case is provided in the fixing groove so as to be pullable.

[0012] Preferably, the ammonium molybdate solution bottle is a white PE plastic bottle with a bottle cap, and a sealing treatment is performed on the gap between the bottle mouth of the ammonium molybdate solution bottle and the bottle cap.

[0013] Preferably, vaseline is applied to the gap between the bottle mouth of the ammonium molybdate solution bottle and the bottle cap to block air.

[0014] Preferably, the ammonium molybdate solution in the ammonium molybdate solution bottle is less than two-thirds of the volume of the bottle.

[0015] Preferably, the heat-insulating box includes a heat-insulating layer and a protective layer, the heat-insulating layer is located inside the protective layer, and the material of the protective layer is opaque stainless steel.

[0016] Preferably, the temperature range inside the heat-insulating box is maintained at 0 to 5°C.

[0017] Compared with the prior art, the present invention has the following advantages. (1) In this solution, the prepared ammonium molybdate solution is poured into an ammonium molybdate solution bottle, the ammonium molybdate solution bottle is placed in a heat-insulating box, and through a drying structure and a temperature controller, the inside of the heat-insulating box is kept in a dry and sealed environment at an appropriate temperature. The ammonium molybdate solution prepared through the liquid dispenser at the bottle mouth is quantitatively sampled and then directly used. Through the heat-insulating box, the contact between the prepared ammonium molybdate solution and the atmospheric environment can be reduced, light can be effectively avoided, and the temperature can be controlled. Therefore, the storage period of the ammonium molybdate solution can be extended, the frequency of the preparation work of the ammonium molybdate solution can be reduced, waste can be effectively avoided, and the cost can be reduced. The amount of the ammonium molybdate solution sampled each time by the liquid dispenser at the bottle mouth is controlled by the program control panel, the time when the ammonium molybdate solution is exposed to the air is shortened, and the detection effect is guaranteed. (2) This solution is to provide a drying structure inside the heat insulation box, dry the inside of the heat insulation box through the drying kit body and the desiccant, effectively reduce the contact between the ammonium molybdate solution and water, and ensure the drying effect by removing the drying kit body and replacing the desiccant. At the same time, by sealing the gap at the mouth of the ammonium molybdate solution bottle, the contact between the solution in the bottle and the air can be further reduced, and the storage period of the solution can be effectively extended.

Brief Description of the Drawings

[0018]

Figure 1

Figure 2

Explanation of Reference Signs

[0019] 1. Liquid dispenser at the bottle mouth, 2. Ammonium molybdate solution bottle, 3. Temperature controller, 4. Display panel, 5. Adjustment button, 6. Desiccant case, 7. Heat insulation box, 8. Heat insulation layer, 9. Protection layer, 71. Box body, 72. Box cover.

Modes for Carrying Out the Invention

[0020] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and illustrated in the accompanying drawings may be arranged and designed in various different configurations.

[0021] Accordingly, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather is intended to represent selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts are included within the protection scope of the present invention.

[0022] Note that in the following figures, like reference numerals and characters represent like items, so once an item is defined in one figure, it will not require further definition and explanation in subsequent figures.

[0023] In addition, in the description of the present invention, the directions and positional relationships indicated by terms such as "central", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the directions and positional relationships shown in the drawings, or the directions and positional relationships in which the products of the present invention are usually placed when in use. This is only for the purpose of explaining and simplifying the present invention, and does not indicate or imply that the devices or elements mentioned must have a specific orientation and must be constructed and operate in a specific orientation, so it cannot be understood as a limitation of the present invention.

[0024] Note that the terms "first" and "second" are used only for the convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the amount of technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, "a plurality" means two or more unless otherwise clearly restricted.

[0025] Also, terms such as "horizontal" and "vertical" do not mean that the members need to be completely horizontal or suspended, but rather mean that they may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, and it may be slightly inclined.

Example

[0026] As shown in FIG. 1, this example provides a drug metering device with moisture-proof, temperature control, and light-shielding functions. The device includes a bottle mouth liquid dispenser 1, an ammonium molybdate solution bottle 2, a temperature controller 3, and a heat-insulating box 7. The heat-insulating box 7 includes a box body 71 and a box cover 72. The box cover 72 is rotatably fixed to one side of the box body 71. The temperature controller 3 is provided inside the heat-insulating box 7 and is used to control the temperature. The ammonium molybdate solution bottle 2 is placed inside the box body 71. The bottle mouth liquid dispenser 1 is provided above the box body 71. A through hole is provided on the upper side of the box body 71. The bottle mouth liquid dispenser 1 is connected to the ammonium molybdate solution bottle 2 through the through hole and is used to quantitatively collect the ammonium molybdate solution. The heat-insulating box 7 is further provided with a drying structure for controlling the humidity inside the heat-insulating box.

[0027] Pour the prepared ammonium molybdate solution into the ammonium molybdate solution bottle, put the ammonium molybdate solution bottle into the heat-insulating box, and through the drying structure and the temperature controller, keep the inside of the heat-insulating box in a dry and sealed environment at an appropriate temperature. Quantitatively collect the prepared ammonium molybdate solution through the bottle mouth liquid dispenser and use it directly later.

[0028] Through the heat-insulating box, the contact between the prepared ammonium molybdate solution and the atmospheric environment can be reduced, light can be effectively avoided, and the temperature can be controlled. Therefore, the storage period of the ammonium molybdate solution can be extended, the frequency of the preparation work of the ammonium molybdate solution can be reduced, waste can be effectively avoided, and the cost can be reduced. The amount of the ammonium molybdate solution collected each time by the bottle mouth liquid dispenser is controlled by the program control panel, the time when the ammonium molybdate solution is exposed to the air is shortened, and the detection effect is guaranteed.

[0029] In a preferred embodiment, the apparatus further includes a display screen 4, a program control panel, and adjustment buttons 5, The display screen 4 is fixed outside the box cover 72, the temperature controller is connected to the display screen 4, and the program control panel is connected to the temperature controller 4 and the bottle mouth liquid dispenser 1 respectively, and is used to control the temperature inside the heat insulation box and the sampling amount of the ammonium molybdate solution. In this embodiment, the adjustment buttons include four buttons: "↑", "↓", "open", and "on / off", and are used to adjust the temperature inside the heat insulation box 7, control the opening and closing of the box cover 72, and start and stop the dispenser 1 at the bottle mouth.

[0030] The control panel controls the temperature inside the heat insulation box 7, maintains the temperature range inside the heat insulation box 7 at 0 to 5°C, properly stores the prepared ammonium molybdate solution, ensures that the ammonium molybdate solution is in an environment where precipitation is unlikely to occur, controls the amount of solution collected by the liquid dispenser 1 at the bottle mouth, thereby extending the storage period of the ammonium molybdate solution, reducing the preparation work of the power plant personnel, and making the overall control of the apparatus more convenient and accurate.

[0031] As shown in Figure 2, the drying structure includes a desiccant case 6 and a desiccant. Inside the box cover 72, a fixing groove adapted to the desiccant case 6 is provided. The desiccant case 6 is removably fixed in the fixing groove, and the desiccant is placed inside the desiccant case 6. A punching structure is provided on the side of the desiccant case 6 close to the box body 71. The desiccant case 71 is provided so as to be pullable out of the fixing groove.

[0032] In addition, the ammonium molybdate solution bottle 2 is a white PE plastic bottle with a bottle cap, and a sealing treatment is performed on the gap between the bottle mouth of the ammonium molybdate solution bottle 2 and the bottle cap. In this embodiment, vaseline is applied to the gap between the bottle mouth of the ammonium molybdate solution bottle 2 and the bottle cap to block air, and the risk of the ammonium molybdate solution coming into contact with air during storage and use is greatly reduced by the sealed mother liquor bottle and the bottle mouth liquid dispenser.

[0033] A drying structure is provided inside the heat-insulating box, and the inside of the heat-insulating box is dried through the drying kit main body and the desiccant, effectively reducing the contact between the ammonium molybdate solution and water. By removing the drying kit main body and replacing the desiccant, the drying effect can be ensured. At the same time, by sealing the gap at the mouth of the ammonium molybdate solution bottle, the risk of the ammonium molybdate solution being exposed to air during dropping is reduced, so avoid using a pipette to drop the ammonium molybdate solution, and the storage period of the solution can be effectively extended.

[0034] Specifically, the ammonium molybdate solution in the ammonium molybdate solution bottle 2 is less than two-thirds of the volume of the bottle. The heat-insulating box 7 includes a heat-insulating layer 8 and a protective layer 9, the heat-insulating layer 8 is located inside the protective layer 9, and the material of the protective layer 9 is opaque stainless steel.

[0035] As described above, the preferred specific embodiments of the present invention have been described in detail. It should be understood by those skilled in the art that many modifications and changes can be made based on the concept of the present invention without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art through logical analysis, inference, or limited experiments based on the concept of the present invention and based on the prior art should be within the protection scope determined by the claims.

Claims

1. A drug dosage device with moisture-proof, temperature-controlled and light-shielding functions, comprising a bottle mouth liquid dispenser (1), an ammonium molybdate solution bottle (2), a temperature controller (3) and an insulating box (7); a temperature controller (3) provided in the heat-insulating box (7) for controlling temperature; a bottle of ammonium molybdate solution (2) placed in the box body (71); a bottle mouth liquid dispenser (1) provided above the box body (71); a through hole provided on the upper side of the box body (71); the bottle mouth liquid dispenser (1) connected to the bottle of ammonium molybdate solution (2) through the through hole and used to quantitatively collect ammonium molybdate solution; and a drying structure for controlling humidity in the heat-insulating box (7) further provided in the heat-insulating box (7).

2. It further includes a display screen (4), a program control panel and adjustment buttons (5); The pharmaceutical dosage device with functions of moisture-proofing, temperature control and light-shielding as claimed in claim 1, characterized in that the display screen (4) is fixed on the outside of the box cover (72), the temperature controller is connected to the display screen (4), and the program control panel is connected to the temperature controller (4) and the bottle mouth liquid dispenser (1) respectively, and is used to control the temperature inside the insulation box and the amount of ammonium molybdate solution taken.

3. The pharmaceutical dosage device with moisture-proof, temperature-controlled and light-blocking functions as described in claim 1, characterized in that the desiccant structure includes a desiccant case (6) and a desiccant, the inside of the box cover (72) is provided with a fixing groove corresponding to the desiccant case (6), the desiccant case (6) is removably fixed in the fixing groove, and the desiccant is placed in the desiccant case (6).

4. 4. A drug dosage device with moisture-proofing, temperature control and light-shielding functions as described in claim 3, characterized in that a cutout structure is provided on the side of the desiccant case (6) close to the box body (71).

5. 4. The drug dispensing device with moisture-proof, temperature-controlled and light-shielding functions as claimed in claim 3, characterized in that the desiccant case (6) is retractably mounted in a fixed groove.

6. The drug dosage device with moisture-proofing, temperature control and light-blocking functions described in claim 1, characterized in that the ammonium molybdate solution bottle (2) is a white PE plastic bottle with a bottle cap, and a sealing treatment is applied to the gap between the bottle mouth of the ammonium molybdate solution bottle (2) and the bottle cap.

7. 7. A drug administration device with moisture-proofing, temperature control and light-blocking functions as described in claim 6, characterized in that the gap between the bottle mouth and the bottle cap of the ammonium molybdate solution bottle (2) is coated with Vaseline to block air.

8. 2. The drug dispensing device with moisture-proof, temperature-controlled and light-blocking functions as claimed in claim 1, characterized in that the ammonium molybdate solution in the ammonium molybdate solution bottle (2) is less than two-thirds of the bottle's volume.

9. The pharmaceutical dosage unit with functions of moisture-proofing, temperature control and light-blocking as described in claim 1, characterized in that the insulating box (7) includes an insulating layer (8) and a protective layer (9), the insulating layer (8) is located inside the protective layer (9), and the material of the protective layer (9) is opaque stainless steel.

10. The drug dispensing device with moisture-proof, temperature-controlled and light-blocking functions as claimed in claim 1, characterized in that the temperature inside the insulating box (7) is maintained at 0-5°C.

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