CN-224216370-U - Automatic circulation temperature control quantitative sampling device

Abstract

The utility model discloses an automatic circulation temperature control quantitative sampling device, which belongs to the field of material sampling, and comprises a sampling box, a quantitative bottle in the sampling box, a three-way valve a, a steam space heater, a material condenser, a sampling bottle, a sampling valve, a purge valve, a temperature measurement thermocouple and a three-way valve b, and is characterized in that: the quantitative bottle is arranged in the sampling box, the three-way valve a is arranged above the top of the quantitative bottle through a pipeline, the nitrogen blowing line is arranged on the three-way valve a, the blowing valve is arranged on the nitrogen blowing line, the three-way valve b is arranged below the bottom of the quantitative bottle through a pipeline, the material condenser and the temperature controller are arranged on the side edge of the sampling box, the material pipeline of the material condenser is connected with the three-way valve b, a pipeline is extended from the right side of the three-way valve b and is communicated with the sampling bottle, and the steam space heater and the temperature measurement thermocouple are embedded and installed in the sampling box. The problems that samples are not representative, the sampling quantity is inaccurate, the number of stub bars is large, and the sampling temperature is too high and easy to oxidize or too low and easy to crystallize in the sampling process are solved.

Inventors

• WU HONGWEI
• HU XIAOYU
• GUO ZILIANG
• ZOU MINGLIANG
• CHEN ZHONGZHEN
• LI LIN

Assignees

• 连云港石化有限公司

Dates

Publication Date

20260508

Application Date

20250528

Claims (4)

1. 1. An automatic circulation temperature control quantitative sampling device comprises a sampling box (1), a quantitative bottle (2) in the sampling box, a three-way valve a (3), a steam space heater (4), a material condenser (5), a sampling bottle (6), a sampling valve (7), a purge valve (8), a temperature measurement thermocouple (9) and a three-way valve b (10), and is characterized in that the quantitative bottle (2) is arranged in the sampling box (1), the three-way valve a (3) is arranged above the top of the quantitative bottle (2) through a pipeline, a material circulation pipeline is arranged on the three-way valve a (3), the purge valve (8) is arranged on the material circulation pipeline, the three-way valve b (10) is arranged below the bottom of the quantitative bottle (2) through a pipeline, the material pipeline of the sampling box (1) is connected with the three-way valve b (10), the right side of the three-way valve b (10) extends out to form a pipeline to be communicated with the sampling bottle (6), and the steam space heater (4) and the temperature measurement thermocouple (9) are embedded in the sampling box (1), and the temperature measurement thermocouple (11) is connected with the temperature measurement thermocouple (9).
2. 2. The automatic circulation temperature-control quantitative sampling device according to claim 1, wherein the material cooler is arranged at the feeding end and the discharging end of the material condenser (5).
3. 3. The automatic circulation temperature-control quantitative sampling device according to claim 1 is characterized in that a sampling valve (7) is arranged on a pipeline of which a three-way valve b (10) is communicated with a sampling bottle (6).
4. 4. The automatic circulation temperature-control quantitative sampling device of claim 1, wherein the material condenser (5) comprises a cooling water inlet pipe, a cooling water outlet pipe, a condenser shell and supporting legs.

Description

Automatic circulation temperature control quantitative sampling device Technical Field The utility model belongs to the field of material sampling, and particularly relates to an automatic circulation temperature control quantitative sampling device. Background In the field of chemical production, sampling analysis of chemical reaction process products and final products is a key link for ensuring production quality and safety. However, the conventional sampling method has various disadvantages that the limitation of the sampling method may cause that the sampled product cannot truly reflect the characteristics of the whole material, for example, single-point sampling is difficult to represent the uniformity of a complex reaction system, the sample lacks statistical significance due to the unreasonable sampling quantity, such as too small sampling quantity may miss the variation trend of key components, and the insufficient sample protection measures may easily cause the problems of component volatilization, pollution or physical property change, etc., which may cause inaccurate detection results, further cause repeated detection, increase the cost of manpower and material resources, and delay the production process. More significantly, part of chemical products have dangerous characteristics such as high temperature, strong corrosion and the like. Under the condition of lacking a safety sampling device, when an operator directly contacts the sample, high temperature can cause scalding, and corrosive substances can cause serious safety accidents such as skin burn, respiratory tract injury and the like, so that the personal safety of the sampler is greatly threatened. Therefore, the optimization of the sampling technology and the provision of a safe and reliable sampling device are of great importance to the improvement of the accuracy, safety and economy of chemical production, and therefore, the automatic cycle temperature control quantitative sampling device is provided. Disclosure of utility model The utility model aims to provide an automatic circulation temperature-control quantitative sampling device, which solves the problems of non-representativeness of samples, inaccurate sampling quantity, more material heads, and easy oxidization or crystallization due to too high sampling temperature in the sampling process. In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an automatic circulation accuse temperature ration sampling device, includes sampling box, the inside quantitative bottle of sampling box, three-way valve a, steam space heater, material condenser, sampling bottle, sampling valve, purge valve, temperature measurement thermocouple and three-way valve b, its characterized in that: the quantitative bottle is arranged in the sampling box, the three-way valve a is arranged above the top of the quantitative bottle through a pipeline, the material circulation pipeline is arranged on the three-way valve a, the purge valve is arranged on the material circulation pipeline, the three-way valve b is arranged below the bottom of the quantitative bottle through a pipeline, the material condenser and the temperature controller are arranged on the side edge of the sampling box, the material pipeline of the material condenser is connected with the three-way valve b, a pipeline extending from the right side of the three-way valve b is communicated with the sampling bottle, the steam space heater and the temperature measuring thermocouple are embedded and installed in the sampling box, and the temperature controller is connected with the temperature measuring thermocouple. Preferably, the material cooler is arranged at both the feeding end and the discharging end of the material condenser. Preferably, a sampling valve is arranged on a pipeline of the three-way valve b communicated with the sampling bottle. Preferably, the material condenser comprises a cooling water inlet pipe, a cooling water outlet pipe, a condenser shell and supporting legs. Compared with the prior art, the utility model has the beneficial effects that: 1. The invention uses circulation to replace discharging, which can ensure the fresh and representative sample without generating redundant stub bars. 2. Quantitative sampling, namely designing the volume of the quantitative bottle according to the quantity required by sample detection, ensuring the same sampling quality each time, ensuring the detection requirement and reducing the waste to the maximum extent. 3. The temperature in the sampling box is accurately controlled by the temperature controller, so that the materials are prevented from crystallizing, and sampling operators are prevented from being hurt by the temperature. 4. And cooling the sample, namely cooling the high-temperature material to a proper temperature through an external circulating cooling water condenser, and then entering a samplin