Device for adding liquid medicament into pressure container with pressure
By designing a device including fat tubes and nitrogen pipelines in chemical production, the risk of contacting toxic media when adding liquid agents to pressure vessels in chemical production is solved, and a safe and effective addition process is achieved, reducing the Personnel exposure risk.
Patent Information
- Application Number
- CN202421142685.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-23
AI Technical Summary
In chemical production, the prior art has the risk of contacting toxic and harmful media when adding liquid agents to pressure vessels, especially when adding polymer inhibitors to polymer polyol wastewater tanks, which may cause safety hazards for personnel.
A device including a fat pipe, a wastewater tank, a feeding port, a nitrogen pipeline and multiple valves was designed to store polymerization inhibitors through the middle of the fat pipe, and the nitrogen pipeline provides pressure to inject it into the pressure-loaded wastewater tank. The added sight glasses are used to observe the addition and to discharge possible pressure by venting the pipeline to ensure that the isolation hand valve is closed to avoid contact with toxic media.
Effectively isolate the contact between the polymerization inhibitor and the wastewater tank, and use nitrogen to provide pressure to safely add polymerization inhibitor, reducing the risk of people coming into contact with toxic media and improving the safety of the addition process.
Smart Images
Figure CN222331583U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chemical production, in particular to a device for adding liquid medicine into a pressurized pressure container. Background Art
[0002] Because styrene has an unsaturated double bond and forms a conjugated system with the benzene ring, it has strong chemical reaction properties and is easy to self-polymerize and polymerize. Generally, heating or a catalyst is used to cause styrene to undergo free radical polymerization.
[0003] Acrylonitrile has an unsaturated triple bond and is used to make polyacrylonitrile, nitrile rubber, dyes, synthetic resins, medicines, etc. Acrylonitrile is highly flammable, toxic by inhalation, skin contact, and ingestion, irritating the respiratory system and skin, and posing a risk of serious damage to the eyes; skin contact may cause allergies and may cause cancer;
[0004] The production process of polymer polyols (POP) will produce wastewater containing styrene and acrylonitrile. Styrene and acrylonitrile in these wastewaters are easy to polymerize, and acrylonitrile is a highly toxic substance. Because styrene and acrylonitrile in wastewater are easy to polymerize, some inhibitors may need to be temporarily added to the polymer polyol (POP) wastewater tank. The addition process needs to be carried out under a slight positive pressure in the container and avoid contact with toxic substances.
[0005] In the prior art, the polymer polyol (POP) wastewater tank is emptied to normal pressure, and the feed port is directly connected to the wastewater tank through a valve; the polymerization inhibitor is directly added to the wastewater tank through the feed port after the feed valve is opened. In this process, there is still a possibility of contact with toxic substances;
[0006] In summary: the existing technology often encounters the situation where some liquid agents such as inhibitors need to be temporarily added during chemical production operations. The equipment to be added is normally pressurized or contains toxic and harmful media. In this way, there is a possibility that people will be exposed to toxic and harmful media during the addition process. For this purpose, a device for adding liquid agents to a pressurized pressure vessel is provided. Utility Model Content
[0007] The purpose of the utility model is to provide a device for adding liquid medicine into a pressurized pressure container in view of the defects of the prior art, so as to solve the problems raised by the above-mentioned background technology.
[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a device for adding liquid medicine into a pressurized pressure vessel, comprising a fat tube and a wastewater tank, the top of the fat tube is connected to a feeding port through a first pipe, the bottom of the fat tube is connected to the wastewater tank through a second pipe, and the first pipe is connected to a vent line and a nitrogen line.
[0009] As a preferred technical solution of the utility model, a feeding hand valve is installed on the first pipeline.
[0010] As a preferred technical solution of the utility model, a sight glass, a check valve and an isolation hand valve are installed on the second pipeline.
[0011] As a preferred technical solution of the utility model, a nitrogen hand valve is installed on the nitrogen pipeline.
[0012] As a preferred technical solution of the utility model, a venting hand valve is installed on the venting pipeline.
[0013] As a preferred technical solution of the utility model, the first pipeline is connected to the nitrogen pipeline and the venting pipeline through a connecting valve.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] The utility model adds a fat large pipe for intermediate storage of added inhibitor, which is separated from the wastewater tank; adds a sight glass for observing the addition of the inhibitor; adds nitrogen as a pressure source to press the inhibitor into the pressurized wastewater tank; and adds a venting pipeline for discharging the pressure that may exist between the feeding hand valve and the isolation hand valve.
[0016] In addition, when adding inhibitor, the isolation hand valve is closed. First add it into the fat pipe, and then press it into the wastewater tank from the fat pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the structure of the utility model;
[0018] In the figure: 1-feeding port; 2-nitrogen pipeline; 3-fat pipe; 4-sight glass; 5-check valve; 6-isolation hand valve; 7-feeding hand valve; 8-nitrogen hand valve; 9-venting pipeline; 10-venting hand valve; 11-waste water tank. DETAILED DESCRIPTION
[0019] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.
[0020] Embodiment: A device for adding liquid medicine into a pressurized pressure vessel comprises a fat tube 3 and a wastewater tank 11, the top of the fat tube 3 is connected to a feeding port 1 through a first pipe, the bottom of the fat tube 3 is connected to the wastewater tank 11 through a second pipe, and the first pipe is connected to a vent line 9 and a nitrogen line 2.
[0021] A feeding hand valve 7 is installed on the first pipeline.
[0022] A sight glass 4, a check valve 5 and an isolation hand valve 6 are installed on the second pipeline.
[0023] A nitrogen manual valve 8 is installed on the nitrogen pipeline 2.
[0024] A vent hand valve 10 is installed on the vent line 9.
[0025] The first pipeline is connected to the nitrogen pipeline 2 and the vent pipeline 9 through a connecting valve.
[0026] Working principle: A device for adding liquid medicine into a pressurized pressure vessel, comprising a feed port 1, a nitrogen pipeline 2, a fat pipe 3, a sight glass 4, a check valve 5, an isolation hand valve 6, a feed hand valve 7, a nitrogen hand valve 8, a venting pipeline 9, a venting hand valve 10, and a wastewater tank 11. In this device, the fat pipe 3 is used for intermediate storage of added inhibitors, which is separated from the wastewater tank 11; a sight glass 4 is added to observe the addition of inhibitors; a nitrogen pipeline 2 is added as a pressure source to pressurize the added inhibitors into the pressurized wastewater tank 11; a venting pipeline 9 is added to discharge the pressure that may exist between the feed hand valve and the isolation hand valve;
[0027] First, add the inhibitor into the fat tube 3. Before adding, close the isolation hand valve 6. Then, add a sight glass 4 to observe the addition of the inhibitor. After the addition is completed, close the feeding hand valve 7 and the venting hand valve 10, open the nitrogen hand valve 8, and let the nitrogen pipeline 2 serve as a pressure source to press the added inhibitor into the pressurized waste water tank 11, thereby completing the feeding. After the feeding is completed, close the isolation hand valve 6, open the venting hand valve 10, and vent the gas.
[0028] The above embodiments only express the implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.
Claims
1. A device for adding a liquid medicine into a pressurized pressure vessel, comprising a fat pipe (3) and a waste water tank (11), characterized in that: The top of the fat tube (3) is connected to a feed port (1) via a first pipeline, the bottom of the fat tube (3) is connected to a wastewater tank (11) via a second pipeline, and the first pipeline is connected to a venting pipeline (9) and a nitrogen pipeline (2).
2. The device for adding liquid medicine into a pressurized container according to claim 1, characterized in that: A feeding hand valve (7) is installed on the first pipeline.
3. The device for adding liquid medicine into a pressurized container according to claim 1, characterized in that: The second pipeline is installed with a sight glass (4), a check valve (5) and an isolation hand valve (6).
4. The device for adding liquid medicine into a pressurized container according to claim 1, characterized in that: A nitrogen manual valve (8) is installed on the nitrogen pipeline (2).
5. The device for adding liquid medicine into a pressurized container according to claim 1, characterized in that: The venting pipeline (9) is provided with a venting hand valve (10).
6. The device for adding liquid medicine into a pressurized container according to claim 1, characterized in that: The first pipeline is connected to the nitrogen pipeline (2) and the venting pipeline (9) via a connecting valve.