A device for preventing drug volatilization of a new type of drug storage tank and a control system thereof

Abstract

This utility model belongs to the field of pharmaceutical storage tank technology, and particularly relates to a novel device and control system for preventing pharmaceutical evaporation in pharmaceutical storage tanks. The device includes a pharmaceutical storage tank, a pharmaceutical discharge structure, a pharmaceutical anti-evaporation structure, and a float level control structure. The pharmaceutical discharge structure includes a discharge pipe, a branch pipe, a solenoid valve, a pressure sensing element, and a pressure pump. The pharmaceutical anti-evaporation structure includes sealing oil that floats on the pharmaceutical liquid surface to form a seal. The float level control structure includes a counterweight silicone pad, a guide rail, and a counterweight silicone plug. The bottom opening of the counterweight silicone pad covers the discharge port, and the counterweight silicone plug floats between the sealing oil and the pharmaceutical liquid surface. When the pharmaceutical liquid level is too low, the counterweight silicone plug comes into contact with the top opening of the counterweight silicone pad, sealing the discharge port. This utility model uses a silicone oil seal and float level control method, which can effectively solve the problem of pharmaceutical evaporation without increasing the difficulty of operation and has a certain degree of fault tolerance.

Description

Technical Field

[0001] This utility model belongs to the field of pharmaceutical storage tank technology, and in particular relates to a novel device and control system for preventing pharmaceutical evaporation in pharmaceutical storage tanks. Background Technology

[0002] Currently, wastewater treatment plants or reclaimed water plants lack adequate equipment to prevent the volatilization of volatile chemicals such as hydrochloric acid and sodium hypochlorite from using storage tanks, or employ costly measures like acid mist absorbers. Typically, the only solution is to isolate the volatile chemical tanks in a separate dosing room to minimize their impact. This is mainly because the storage tanks usually only ensure their own corrosion resistance, without measures to prevent chemical volatilization.

[0003] When chemical plants use and store volatile chemicals such as hydrochloric acid and sodium hypochlorite without effective measures to prevent volatilization, accidents can occur frequently. For example, hydrochloric acid volatilization can cause severe corrosion of equipment in the dosing / storage room. To prevent such accidents, the usual approach is simply to improve the sealing of the chemical storage tanks. Therefore, designing a low-cost, volatilization-proof device for chemical storage tanks to prevent chemical volatilization is of significant practical importance in order to effectively reduce chemical losses and equipment corrosion caused by the volatilization of volatile chemicals. Summary of the Invention

[0004] In order to solve the problems existing in the prior art, this utility model provides a novel device and control system for preventing the volatilization of pharmaceuticals in a pharmaceutical storage tank. It adopts a control method of silicone oil seal and float level, which can effectively solve the problem of pharmaceutical volatilization without increasing the difficulty of operation and has a certain degree of fault tolerance.

[0005] The technical solution adopted by this utility model to solve this problem is: A novel device for preventing the volatilization of pharmaceuticals, comprising a pharmaceutical storage tank with a discharge port at the bottom, and further comprising: The drug discharge structure includes a drug discharge pipe connected to the drug outlet, a drug discharge branch pipe connected to the drug discharge pipe, and a solenoid valve, a pressure sensing element and a pressure pump installed on the drug discharge branch pipe. A chemical anti-volatile structure, comprising a sealing oil that forms a sealing layer by sealing the liquid chemical floating on the surface of the liquid chemical; The floating liquid level control structure includes a counterweight silicone pad set at the bottom of the medicine storage tank, a guide rail set vertically in the middle of the counterweight silicone pad, and a counterweight silicone plug slidably connected to the guide rail. The bottom opening of the counterweight silicone pad covers the medicine outlet, and the counterweight silicone plug floats in the sealing oil and medicine liquid surface. When the medicine liquid level is too low, the counterweight silicone plug fits into the top opening of the counterweight silicone pad to seal the medicine outlet.

[0006] In the above technical solution, the sealing oil is silicone oil, and the agent is hydrochloric acid solution or sodium hypochlorite solution.

[0007] In the above technical solution, the counterweight silicone pad includes a counterweight base and a silicone pad that are coaxially arranged vertically and have a central opening. The counterweight base is located at the bottom of the medicine storage tank and the bottom opening of the counterweight base covers the medicine outlet. The silicone pad is fixed to the top of the counterweight base.

[0008] In the above technical solution, the counterweight silicone plug includes a counterweight block, a pad, and a silicone plug arranged coaxially. The counterweight block and the pad are provided with sliding holes for the guide rail to pass through. The silicone plug is a tapered silicone plug that is larger at the top and smaller at the bottom.

[0009] In the above technical solution, the top of the counterweight block is provided with an assembly hole for inserting counterweight components, and the side wall of the counterweight block is engraved with scale lines.

[0010] In the above technical solution, the bottom outer periphery of the gasket is provided with a downward-opening sealing silicone lip, and the outer diameter of the sealing silicone lip is slightly larger than the outer diameter of the silicone gasket.

[0011] In the above technical solution, the top diameter of the pharmaceutical storage tank gradually decreases.

[0012] The above technical solution also includes a splash-proof dosing structure, which includes a dosing pipe and a hollow dosing ball disposed at the bottom of the dosing pipe, wherein a dosing hole is formed on the surface of the hollow dosing ball.

[0013] The above technical solution also includes a dust cover, which is installed on the top of the drug storage tank. The dust cover is an umbrella-shaped structure that is closed at the top and open at the bottom and gradually expands from the top downwards. The dust cover is provided with a dosing port for the dosing pipe to pass through.

[0014] The second objective of this invention is to provide a control system for the novel pharmaceutical storage tank device for preventing pharmaceutical evaporation, as described above, including a controller and an alarm element. The controller is electrically connected to a solenoid valve, a pressure sensing element, a pressure pump, and the alarm element.

[0015] The advantages and positive effects of this utility model are: 1. This utility model adopts a control method of silicone oil seal and float liquid level, which can effectively solve the problem of agent volatilization without increasing the difficulty of operation and has a certain degree of fault tolerance.

[0016] 2. In this invention, the method of sealing the liquid surface of the medicine with silicone oil can effectively inhibit the volatilization of volatile substances in the medicine. Due to its chemical inertness, it is also difficult to react with substances such as hydrochloric acid and sodium hypochlorite, and has excellent stability.

[0017] 3. In this invention, the silicone oil itself has extremely poor volatility, but over time, it will still have a certain evaporation effect, causing the silicone oil seal layer to become thinner. At this time, it is only necessary to add silicone oil from the mouth of the reagent can. Due to its poor water solubility, the silicone oil seal layer will recover relatively quickly and has good stability.

[0018] 4. In this invention, the cost of silicone oil is low and the consumption is minimal, which can prevent the volatilization of the drug solution at a very low cost.

[0019] 5. In this utility model, due to the function of the silicone plug and the counterweight, the silicone oil can be effectively prevented from being accidentally removed. The float level control does not involve the circuit part, the structure is simple and the reliability is good. Attached Figure Description

[0020] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that these drawings are designed for illustrative purposes only and are not intended to limit the scope of this utility model. In addition, unless otherwise specified, these drawings are intended only to conceptually illustrate the structural construction described herein and are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the device in Example 1; Figure 2 This is a schematic diagram of a half-section of the device in Embodiment 1. Figure 1 ; Figure 3 yes Figure 2 Schematic diagram of the structure of the middle counterweight silicone plug; Figure 4 This is a schematic diagram of a half-section of the device in Embodiment 1. Figure 2 ; Figure 5 yes Figure 4 Schematic diagram of the structure of the middle counterweight silicone plug; Figure 6 This is a schematic diagram of a half-section of the device in Embodiment 2. Figure 1 ; Figure 7 yes Figure 6 Schematic diagram of the structure of the middle counterweight silicone plug; Figure 8 This is a schematic diagram of a half-section of the device in Embodiment 2. Figure 2 ; Figure 9 yes Figure 8 Schematic diagram of the structure of the middle counterweight silicone plug; Figure 10 This is a schematic diagram of a half-section of the device in Example 3. Figure 1 ; Figure 11This is a schematic diagram of a half-section of the device in Example 3. Figure 2 ; Figure 12 yes Figure 11 The main view.

[0022] In the diagram: 1-Drug outlet; 2-Drug storage tank; 3-Drug outlet pipe; 4-Drug outlet branch pipe; 5-Solenoid valve; 6-Pressure pump; 7-Silicone oil; 8-Guide rail; 9-Counterweight base; 10-Silicone gasket; 11-Counterweight block; 12-Gasket and silicone plug; 1201-Gasket; 1202-Silicone plug; 13-Counterweight; 14-Assembly hole; 15-Scale line; 16-Sealing silicone lip; 17-Dosing pipe; 18-Hollow dosing ball; 19-Dust cover; 20-Dosing port. Detailed Implementation

[0023] First, it should be noted that the specific structure, features, and advantages of this utility model will be described in detail below by way of examples. However, all descriptions are for illustrative purposes only and should not be construed as limiting the utility model in any way. Furthermore, any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature shown or implied in the accompanying drawings, can still be arbitrarily combined or deleted among these technical features (or their equivalents) to obtain more other embodiments of this utility model that may not be directly mentioned herein. Additionally, for the sake of simplifying the drawings, the same or similar technical features may be indicated only in one place in the same drawing.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," and "screw-on" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The utility model will now be described in detail with reference to the accompanying drawings. Example 1

[0025] A novel device for preventing the volatilization of pharmaceuticals includes a pharmaceutical storage tank 2 with a pharmaceutical outlet 1 at the bottom, and further includes... The drug discharge structure includes a drug discharge pipe 3 connected to the drug outlet 1, a drug discharge branch pipe 4 connected to the drug discharge pipe 3, and a solenoid valve 5, a pressure sensing element and a pressure pump 6 installed on the drug discharge branch pipe 4. A chemical anti-volatile structure, comprising a sealing oil that forms a sealing layer by sealing the liquid chemical floating on the surface of the liquid chemical; The floating liquid level control structure includes a counterweight silicone pad set at the bottom of the medicine storage tank 2, a guide rail 8 vertically set in the middle of the counterweight silicone pad, and a counterweight silicone plug slidably connected to the guide rail 8. The bottom opening of the counterweight silicone pad covers the medicine outlet 1. The counterweight silicone plug floats in the sealing oil and medicine liquid surface. When the medicine liquid level is too low, the counterweight silicone plug fits into the top opening of the counterweight silicone pad to seal the medicine outlet 1.

[0026] Taking this embodiment as an example, the sealing oil is silicone oil, and the agent is a hydrochloric acid solution or a sodium hypochlorite solution. Silicone oil is used to cover the surface of the liquid agent inside the container, as its density is 0.93 g / cm³. 3 Furthermore, it possesses good chemical inertness, making it difficult to react with hydrochloric acid, sodium hypochlorite, etc., and is sparingly soluble in water. Therefore, it can effectively isolate the agent from contact with air. The guide rail is made of corrosion-resistant PE material, guiding the silicone plug to float up and down with the liquid level. When the liquid level is too low, the silicone plug adheres to the bottom gasket, preventing the liquid from being pumped out further and avoiding contamination caused by accidental removal of silicone oil.

[0027] Furthermore, in this embodiment, to further prevent evaporation, the top diameter of the pharmaceutical storage tank 2 can be gradually reduced.

[0028] Furthermore, in this embodiment, the counterweight silicone pad may include a counterweight base 9 and a silicone pad 10, which are coaxially arranged vertically and have a central opening. The counterweight base 9 is located at the bottom of the medicine storage tank 2 and the bottom opening of the counterweight base 9 covers the medicine outlet 1. The silicone pad 10 is fixed to the top of the counterweight base 9.

[0029] Furthermore, in this embodiment, the counterweight silicone plug may include a counterweight block 11, a pad, and a silicone plug 12 arranged coaxially. The counterweight block 11 and the pad 1201 are provided with sliding holes for the guide rail 8 to pass through. The silicone plug 1202 is a tapered silicone plug that is larger at the top and smaller at the bottom.

[0030] like Figure 1-5 As shown, the structure and connection of the device in this embodiment are as follows: During normal use, the counterweight base 9 and silicone gasket 10 are combined and placed at the bottom of the medicine storage tank. The PE material guide rail is vertically fixed, and the bottom opening of the counterweight base 9 should cover the medicine outlet 1. Calculations are made based on the expected density of the stored medicine liquid so that the counterweight block 11, gasket, and silicone stopper 12 can float on the surface of the medicine liquid. After assembling the counterweight block, it is pulled up to the high position of the PE material guide rail, the stored medicine liquid is injected, and covered with approximately 0.5cm thick silicone oil 7. The counterweight block, silicone stopper, and gasket are then lowered, and the counterweight block will float on the surface of the medicine liquid. The pressure pump, solenoid valve, and pressure sensor are installed on the medicine outlet branch pipe 4, and are set to output an electrical signal to shut off the pressure pump when a large negative pressure is generated.

[0031] Normal operating mode: 1. When the liquid level is relatively high, the removal of the liquid at the bottom will cause the liquid level to drop. The silicone stopper will also drop along the guide rail as the liquid level drops. Due to its corrosion resistance, the silicone stopper usually does not react with the liquid and can float stably on the surface of the liquid.

[0032] 2. When the liquid level is too low, to prevent the silicone oil from being accidentally removed and contaminating the water, the silicone plug adheres to the silicone gasket on the counterweight base, sealing the outlet and effectively preventing silicone oil leakage. Simultaneously, since the pressure pump is still running at this time, a negative pressure is generated in the pipeline. Upon detection by the pressure gauge, an electrical signal is output to shut down the pressure pump, preventing pipeline damage.

[0033] It should be noted that when the dosage of medicine in the storage tank is too low and needs to be replenished, simply pour it directly into the tank opening. The force of the water flow will temporarily break the silicone oil seal, but as long as you are careful not to take out medicine while pouring in new medicine, you can avoid silicone oil leakage. Example 2

[0034] Embodiment 2 of this utility model is a further improvement on Embodiment 1 in order to fully leverage the technical advantages of the present invention. The following is an illustrative example.

[0035] For example, the top of the counterweight block 11 has an assembly hole 14 for inserting a counterweight component 13, and the side wall of the counterweight block 11 is engraved with scale lines 15. By inserting counterweight components 13 of different weights, the weight of the counterweight block 11 can be changed. Depending on the type and density of the sealing oil, the weight of the counterweight block 11 can be adjusted to ensure the floating position of the silicone plug. The thickness of the sealing oil and the floating position of the silicone plug can be estimated using the scale lines 15.

[0036] The bottom outer periphery of the gasket 1201 is provided with a downward-opening sealing silicone lip 16, the outer diameter of which is slightly larger than that of the silicone gasket 10. When the liquid level is too low, the silicone plug 1202 fits into the opening of the silicone gasket on the counterweight base, and the sealing silicone lip 16 fits into the silicone gasket. Through this two-stage sealing, leakage of silicone oil can be effectively prevented.

[0037] It also includes a splash-proof dosing structure, which includes a dosing pipe 17 and a hollow dosing ball 18 located at the bottom of the dosing pipe 17. The hollow dosing ball 18 has a dosing hole on its spherical surface. When the dosage in the storage tank is too low and needs to be replenished, in order to reduce the splashing of the liquid medicine and prevent the impact from temporarily breaking the silicone oil seal, the hollow dosing ball 18 can be directly passed through the oil seal through the dosing pipe 17. Dosing can be directly added to the liquid medicine through the dosing hole on the hollow dosing ball 18, which can reduce the damage to the oil seal and prevent the liquid medicine from splashing. Example 3

[0038] Embodiment 3 of this utility model is a further improvement on Embodiment 1 or 2, so as to give full play to the technical advantages of the present invention. The following is an illustrative example.

[0039] For example: Figure 10-12 As shown, it also includes a dust cover 19, which covers the top of the medicine storage tank 2. The dust cover 19 is an umbrella-shaped structure that is closed at the top and open at the bottom, gradually widening from the top downwards. The dust cover 19 is provided with a dosing port 20 for the dosing pipe 17 to pass through. By covering the tank with a dust cover, it can achieve the effect of preventing dust and wind. Furthermore, a positioning boss can be installed on the top of the guide rail, and a positioning groove adapted to the positioning boss can be installed on the bottom of the dust cover to play a positioning role; a rotating cover can also be provided at the dosing port for easy opening and closing; and a positioning ring can be fixed to the dosing pipe with bolts to limit the insertion depth of the dosing pipe. Example 4

[0040] A control system for a novel pharmaceutical storage tank device to prevent pharmaceutical evaporation includes the novel pharmaceutical storage tank device for preventing pharmaceutical evaporation described in Embodiments 1, 2, or 3 above, and further includes a controller and an alarm element. The controller is electrically connected to a solenoid valve, a pressure sensing element, a pressure pump, and the alarm element, respectively. When the silicone plug is in contact with the opening on the silicone gasket, the outlet is sealed, resulting in a large negative pressure in the outlet pipe. The pressure sensor outputs an electrical signal to the controller, which then outputs electrical signals to the solenoid valve, the pressure pump, and the alarm, shutting off the pressure pump and the solenoid valve, and activating the alarm.

[0041] The above embodiments have provided a detailed description of the present invention, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made in accordance with the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A novel device for preventing the volatilization of pharmaceuticals, comprising a pharmaceutical storage tank with a discharge port at the bottom, characterized in that: Also includes The drug discharge structure includes a drug discharge pipe connected to the drug outlet, a drug discharge branch pipe connected to the drug discharge pipe, and a solenoid valve, a pressure sensing element and a pressure pump installed on the drug discharge branch pipe. A chemical anti-volatile structure, comprising a sealing oil that forms a sealing layer by sealing the liquid chemical floating on the surface of the liquid chemical; The floating liquid level control structure includes a counterweight silicone pad set at the bottom of the medicine storage tank, a guide rail set vertically in the middle of the counterweight silicone pad, and a counterweight silicone plug slidably connected to the guide rail. The bottom opening of the counterweight silicone pad covers the medicine outlet, and the counterweight silicone plug floats in the sealing oil and medicine liquid surface. When the medicine liquid level is too low, the counterweight silicone plug fits into the top opening of the counterweight silicone pad to seal the medicine outlet.

2. The device for preventing the volatilization of a novel pharmaceutical storage tank according to claim 1, characterized in that: The sealing oil is silicone oil, and the reagent is hydrochloric acid solution or sodium hypochlorite solution.

3. The device for preventing the volatilization of a novel pharmaceutical storage tank according to claim 1, characterized in that: The counterweight silicone pad includes a counterweight base and a silicone pad that are coaxially arranged vertically and have a central opening. The counterweight base is located at the bottom of the medicine storage tank and the bottom opening of the counterweight base covers the medicine outlet. The silicone pad is fixed to the top of the counterweight base.

4. The device for preventing the volatilization of a novel pharmaceutical storage tank according to claim 3, characterized in that: The counterweight silicone plug includes a counterweight block, a pad, and a silicone plug arranged coaxially. The counterweight block and the pad have sliding holes for the guide rail to pass through. The silicone plug is a tapered silicone plug that is larger at the top and smaller at the bottom.

5. The device for preventing the volatilization of a novel pharmaceutical storage tank according to claim 4, characterized in that: The top of the counterweight has an assembly hole for inserting counterweight components, and the side wall of the counterweight has engraved scale lines.

6. The device for preventing the volatilization of a novel pharmaceutical storage tank according to claim 4, characterized in that: The bottom outer periphery of the gasket is provided with a downward-opening sealing silicone lip, the outer diameter of which is slightly larger than the outer diameter of the silicone gasket.

7. The device for preventing the volatilization of a novel pharmaceutical storage tank according to claim 1, characterized in that: The top diameter of the pharmaceutical storage tank gradually decreases.

8. The device for preventing the volatilization of a novel pharmaceutical storage tank according to claim 1, characterized in that: It also includes a splash-proof dosing structure, which includes a dosing pipe and a hollow dosing ball disposed at the bottom of the dosing pipe, wherein a dosing hole is formed on the surface of the hollow dosing ball.

9. The device for preventing the volatilization of a novel pharmaceutical storage tank according to claim 1, characterized in that: It also includes a dust cover, which is installed on top of the drug storage tank. The dust cover is an umbrella-shaped structure that is closed at the top and open at the bottom and gradually expands from the top downwards. The dust cover is provided with a dosing port for the dosing pipe to pass through.

10. A control system for a novel pharmaceutical storage tank device to prevent pharmaceutical evaporation, characterized in that: The device for preventing the volatilization of a novel pharmaceutical storage tank as described in any one of claims 1-9 further includes a controller and an alarm element, wherein the controller is electrically connected to a solenoid valve, a pressure sensing element, a pressure pump, and the alarm element.

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