A safe reactor vacuum sampler
By designing a vacuum sampler for a reactor, rapid sampling is achieved using negative pressure and nitrogen inflow, and sample residues are avoided through nitrogen purge, the problems of sampling safety hazards and sample contamination in the prior art are solved.
Patent Information
- Application Number
- CN202420721283.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-08
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-04-08
AI Technical Summary
The existing reactor sampling methods are easy to introduce air, causing safety hazards, and the remaining samples after sampling will contaminate the reaction materials in the reactor.
A safety reactor vacuum sampler was designed. Through the combination of the main pipeline, sampling pipeline and sampling bottle, the vacuum valve and nitrogen valve are used to control the negative pressure and nitrogen inflow to achieve rapid sampling and avoid air introduction. At the same time, the sampling pipeline is purged through nitrogen to avoid sample residue.
It realizes rapid sampling without opening the reactor cover, avoiding safety hazards and impact on the environment and human body, and through nitrogen purge, the sampling pipeline is clean and sample contamination is avoided.
Smart Images
Figure CN222704381U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of samplers, in particular to a safety type vacuum sampler for a reaction kettle. Background Art
[0002] In the prior art, it is necessary to track and sample the reaction during the use of the reactor. The traditional method of directly opening the reactor cover or taking samples through a hanging bottle can easily cause air to mix into the reactor, forming an explosive mixed gas in the reactor, thereby posing a safety hazard. It can also cause odorous gases and volatile liquids to be emitted, polluting the environment and causing harm to the human body.
[0003] In addition, in the prior art, residual samples are likely to remain in the sampler or sampling pipeline after sampling, which may easily contaminate the reaction materials in the reactor or contaminate the sample when sampling again over time. Utility Model Content
[0004] In view of this, the purpose of the present invention is to provide a safe reactor vacuum sampler to solve one or more of the above-mentioned prior art problems.
[0005] To achieve the above-mentioned purpose, the utility model provides a safe reactor vacuum sampler, comprising a main pipeline for probing into a reactor, a sampling pipeline connected to the main pipeline at both ends, and a sampling bottle connected to the sampling pipeline, the main pipeline is connected to a first valve, a nitrogen valve and a vacuum valve in sequence from bottom to top, the vacuum valve is used to control the vacuuming of the main pipeline, the nitrogen valve is used to control the nitrogen to enter the main pipeline, the connection point between the sampling pipeline and the main pipeline is arranged between the nitrogen valve and the first valve, a three-way valve and a second valve are arranged on the sampling pipeline, one of the three-way valves is connected to the main pipeline, the second of the three-way valves is connected to the second valve, and the three-way of the three-way valve is connected to the sampling bottle.
[0006] In some embodiments, a vacuum buffer tank is provided between the vacuum valve and the nitrogen valve.
[0007] In some embodiments, a glass observation window is provided between the vacuum valve and the nitrogen valve.
[0008] In some embodiments, the first valve includes a ball valve and an actuator thereof, the second valve includes a ball valve and an actuator thereof, the nitrogen valve includes a ball valve and an actuator thereof, the vacuum valve includes a ball valve and an actuator thereof, and the three-way valve includes a three-way ball valve and an actuator thereof.
[0009] In some embodiments, the nitrogen valve includes an interface for externally connecting to nitrogen, and the vacuum valve includes an interface for externally connecting to a vacuum pump.
[0010] In some embodiments, the main conduit includes a telescopic tube.
[0011] Compared with the prior art, the beneficial effects of the present invention are:
[0012] The utility model discloses a safety vacuum sampler for a reactor with a simple structure, and can complete rapid sampling through negative pressure without opening the lid of the reactor, thereby avoiding the introduction of air into the reactor to cause safety hazards, and also avoiding the influence of opening the reactor lid on the human body and the environment. The sampler of the utility model purges the sampling pipeline with nitrogen to avoid sample residue. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 The utility model is a schematic structural diagram of a safety vacuum sampler for a reactor in one embodiment. DETAILED DESCRIPTION
[0014] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.
[0015] Example
[0016] like Figure 1 Shown:
[0017] A safe reactor vacuum sampler, comprising a main pipeline 10 for probing into a reactor, a sampling pipeline 20 connected to the main pipeline 10 at both ends, and a sampling bottle 30 connected to the sampling pipeline 20, wherein the main pipeline 10 is sequentially connected with a first valve 11, a nitrogen valve 12 and a vacuum valve 13 from bottom to top, wherein the vacuum valve 13 comprises an interface for an external vacuum pump, wherein the vacuum valve 13 is used to control the vacuuming of the main pipeline 10, wherein the nitrogen valve 12 is used to control the nitrogen to enter the main pipeline 10, wherein the nitrogen valve 12 comprises a first valve 11, a nitrogen valve 12 and a vacuum valve 13, wherein the first valve 11, a nitrogen valve 12 and a vacuum valve 13 are connected to the main pipeline 10 from bottom to top ... The interface for external nitrogen is included, the connection point between the sampling pipeline 20 and the main pipeline 10 is set between the nitrogen valve 12 and the first valve 11, the sampling pipeline 20 is provided with a three-way valve 21 and a second valve 22, one of the three-way valves 21 is connected to the main pipeline 10, the two-way valve 21 is connected to the second valve 22, the three-way valve 21 is connected to the sampling bottle 30, and a vacuum buffer tank 14 and a glass observation window 15 are provided between the vacuum valve 13 and the nitrogen valve 12. Among them, the vacuum buffer tank can ensure that there is still enough negative pressure in the sampler after closing the vacuum valve, and the sample in the kettle can be sucked into the sampling pipeline when sampling, and the glass observation window can observe the state and liquid level of the liquid material.
[0018] Specifically, the first valve 11 includes a ball valve and an actuator thereof, the second valve 22 includes a ball valve and an actuator thereof, the nitrogen valve 12 includes a ball valve and an actuator thereof, the vacuum valve 13 includes a ball valve and an actuator thereof, the three-way valve 21 includes a three-way ball valve and an actuator thereof, and the main line 10 includes a retractable pipe body. The ball valve adopts a 16 kg standard high temperature resistant pneumatic ball valve to ensure the safety and leakage of the sampler under the pressure operation of the reactor.
[0019] Working principle:
[0020] Close the first valve and the second valve, open the vacuum valve, and connect the external vacuum pump through the vacuum valve to evacuate the main line. Close the vacuum valve and open the first valve. Under the action of negative pressure, the liquid in the reactor enters the main line and the vacuum buffer tank; then close the first valve, open the second valve, and adjust the three-way valve to connect with the sampling bottle to complete the sampling of the sampling bottle. The whole process can quickly sample using negative pressure, and there is no need to open the lid of the reactor, avoiding safety hazards and impacts on the human body and the environment.
[0021] After sampling, adjust the three-way valve to connect the sampling pipeline, open the first valve, and then open the nitrogen valve to introduce nitrogen. The sample in the sampling pipeline is blown into the reactor by nitrogen to avoid sample residue.
[0022] A safe reactor vacuum sampler according to an embodiment of the utility model has a simple structure, can complete rapid sampling through negative pressure, and does not need to open the lid of the reactor, thereby avoiding the introduction of air to cause safety hazards and impact on the human body and the environment. The sampler according to the embodiment of the utility model will purge the sampling pipeline with nitrogen to avoid sample residue.
[0023] Finally, it should be noted that: technicians in this industry should understand that the utility model is not limited to the above-mentioned implementation cases. The above-mentioned embodiments and descriptions only illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements must fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A safe reactor vacuum sampler, characterized in that: The invention comprises a main pipeline (10) for probing into a reaction kettle, a sampling pipeline (20) with both ends connected to the main pipeline (10), and a sampling bottle (30) connected to the sampling pipeline (20), wherein the main pipeline (10) is connected to a first valve (11), a nitrogen valve (12) and a vacuum valve (13) in sequence from bottom to top, wherein the vacuum valve (13) is used to control the vacuuming of the main pipeline (10), and the nitrogen valve (12) is used to control the nitrogen to enter the main pipeline (10). 0), the connection point between the sampling pipeline (20) and the main pipeline (10) is arranged between the nitrogen valve (12) and the first valve (11), the sampling pipeline (20) is provided with a three-way valve (21) and a second valve (22), one of the three-way valves (21) is connected to the main pipeline (10), the second of the three-way valves (21) is connected to the second valve (22), and the three-way of the three-way valve (21) is connected to the sampling bottle (30).
2. A safe reactor vacuum sampler as claimed in claim 1, characterized in that: A vacuum buffer tank (14) is provided between the vacuum valve (13) and the nitrogen valve (12).
3. A safe reactor vacuum sampler as claimed in claim 1, characterized in that: A glass observation window (15) is provided between the vacuum valve (13) and the nitrogen valve (12).
4. A safe reactor vacuum sampler as claimed in claim 1, characterized in that: The first valve (11) comprises a ball valve and an actuator thereof, the second valve (22) comprises a ball valve and an actuator thereof, the nitrogen valve (12) comprises a ball valve and an actuator thereof, the vacuum valve (13) comprises a ball valve and an actuator thereof, and the three-way valve (21) comprises a three-way ball valve and an actuator thereof.
5. A safe reactor vacuum sampler as claimed in claim 1, characterized in that: The nitrogen valve (12) comprises an interface for externally connecting to nitrogen, and the vacuum valve (13) comprises an interface for externally connecting to a vacuum pump.
6. A safe reactor vacuum sampler as claimed in claim 1, characterized in that: The main pipe (10) comprises a telescopic pipe body.