CN216847092U - Be used for airtight sampling device of chloroethylene - Google Patents
Be used for airtight sampling device of chloroethylene Download PDFInfo
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- CN216847092U CN216847092U CN202122892504.7U CN202122892504U CN216847092U CN 216847092 U CN216847092 U CN 216847092U CN 202122892504 U CN202122892504 U CN 202122892504U CN 216847092 U CN216847092 U CN 216847092U
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Abstract
The utility model discloses a vinyl chloride closed sampling device, which comprises a cabinet body, wherein a sampling steel cylinder is arranged in the cabinet body, an inlet and an outlet of the sampling steel cylinder are provided with switch valves, the inlet and the outlet of the sampling steel cylinder are connected with a gas pipe and a sample return pipe, the gas pipe is connected with a sample inlet pipe through a three-way valve, the other port of the three-way valve is connected with a nitrogen purging pipe, an emergency sampling pipe is connected to a bypass on the sample inlet pipe, a heating spiral pipe is arranged at the lower part in the cabinet body, and the heating spiral pipe is provided with a rotatable protective cover.
Description
Technical Field
The utility model relates to the field of chemical sampling, in particular to a vinyl chloride closed sampling device.
Background
Chloroethylene adopts the gas holder to save, need take a sample the chemical examination to vinyl chloride when the storage, because the gaseous only danger of chloroethylene, bladder and air pocket are adopted in current sample, leak gas very easily, and winter in the north is colder moreover, freezes very much in the pipeline of sample, influences the sample effect.
SUMMERY OF THE UTILITY MODEL
In order to solve the existing problems, the utility model provides a closed sampling device for vinyl chloride.
The utility model is realized by the following technical scheme:
the utility model provides a be used for airtight sampling device of chloroethylene, the intelligent cabinet temperature adjusting device comprises a cabinet body, the internal sampling steel bottle that is provided with of cabinet, the exit of sampling steel bottle sets up the ooff valve, the sampling steel bottle exit is connected with the gas-supply pipe and returns the appearance pipe, the gas-supply pipe passes through the three-way valve and comes appearance union coupling, another port of three-way valve sweeps the union coupling with nitrogen gas, it has urgent sampling pipe to come the bypass connection on the appearance pipe, the internal portion lower part of cabinet is provided with the heating spiral pipe, the heating spiral pipe is provided with the protection casing that can rotate.
Preferably, the upper end and the lower end of the switch valve of the inlet and the outlet of the sampling steel cylinder are respectively connected with the gas pipe and the sample return pipe through quick connectors, and the tail ends of the switch valve of the inlet and the outlet of the sampling steel cylinder are connected through a communicating pipe.
Preferably, a delivery pump is arranged on the gas delivery pipe, and control valves are arranged on the sample return pipe, the nitrogen purging pipe and the emergency sampling pipe.
Preferably, the two ends of the protective cover are rotatably connected with the two ends of the heating spiral pipe through a rotating sleeve, and the protective cover is made of heat-insulating asbestos plates.
Compared with the prior art, the utility model has the beneficial effects that: this practicality prevents gas leakage when taking a sample, guarantees the surrounding environment, can rotate the swivel sleeve simultaneously when taking a sample and cover its upper portion at the heating spiral pipe, prevents that personnel from taking place the contact when taking a sample, security when guaranteeing personnel's sample.
Drawings
FIG. 1 is a schematic diagram of the system connections of the present invention;
FIG. 2 is a schematic view of a portion of the structure of FIG. 1;
in the figure: sampling steel bottle 1, ooff valve 2, quick-operation joint 3, gas-supply pipe 4, delivery pump 5, come appearance pipe 6, three-way valve 7, urgent sampling pipe 8, nitrogen gas purge pipe 9, cabinet body 10, return appearance pipe 11, control valve 12, heating spiral pipe 13, protection casing 14, swivel sleeve 15.
Detailed Description
The utility model is described in further detail below with reference to the following detailed description and accompanying drawings:
as shown in fig. 1 and 2, a be used for airtight sampling device of chloroethylene, including the cabinet body 10, be provided with sampling steel bottle 1 in the cabinet body 10, sampling steel bottle 1 import and export and set up ooff valve 2, sampling steel bottle 1 import and export is connected with gas-supply pipe 4 and returns appearance pipe 11, gas-supply pipe 4 is connected with appearance pipe 6 through three-way valve 7, another port of three-way valve 7 is connected with nitrogen gas purging pipe 9, it has urgent sampling pipe 8 to come the bypass connection on the appearance pipe 6, the inside lower part of cabinet body 10 is provided with heating spiral pipe 13, heating spiral pipe 13 is provided with protection casing 14 that can rotate.
The upper end and the lower end of a switch valve 2 of an inlet and an outlet of the sampling steel cylinder 1 are respectively connected with a gas pipe 4 and a sample return pipe 11 through a quick connector 3, and the tail end of the switch valve 2 of the inlet and the outlet of the sampling steel cylinder 1 is connected through a communicating pipe.
The gas transmission pipe 4 is provided with a delivery pump 5, and the sample return pipe 11, the nitrogen purging pipe 9 and the emergency sampling pipe 8 are provided with control valves 12.
The both ends of protection casing 14 are through swivel mount 15 and the both ends swivelling joint of heating spiral pipe 13, protection casing 14 adopts thermal-insulated asbestos board to make.
The working principle is as follows: when the sampling device is used, two ends of a sampling steel cylinder 1 are connected into a closed sampler through a quick connector 3, a three-way valve 7 is operated to enable a gas transmission pipe 4 to be communicated with a sample coming pipe 6, a switch valve 2 at the inlet and the outlet of the sampling steel cylinder 1 is opened, vinyl chloride on a process pipe enters the sampling steel cylinder 1 through the gas transmission pipe 4 and is circularly replaced along a sample returning pipe 11, and a conveying pump 5 is started to realize quick sample filling of the sampling steel cylinder 1;
after sampling, closing the switch valve 2 at the upper end and the lower end of the sampling steel cylinder 1, operating the three-way valve 7 to connect the gas transmission pipe 4 with the nitrogen purging pipe 9, opening the control valve 12 on the nitrogen purging pipe 9, performing pipeline purging on a sampling pipe network by using nitrogen, closing the control valve 12 on the nitrogen purging pipe 9 after purging is completed, closing the delivery pump 5, taking out the sampling steel cylinder 1 through the quick connector 3, and finishing sampling;
When the cabinet body 10 to the sampling winter keeps warm and protects, lead to steam to heat heating spiral pipe 13, guarantee the temperature of the cabinet body 10, prevent that the sample from freezing, guarantee the effect of sample, can rotate swivel sleeve 15 when taking a sample simultaneously and cover it on heating spiral pipe 13's upper portion, prevent that personnel from taking place the contact when the sample, security when guaranteeing personnel's sample.
The foregoing shows and describes the general principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, and such changes and modifications are within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (4)
1. A be used for airtight sampling device of chloroethylene, includes cabinet body (10), its characterized in that: be provided with sampling steel bottle (1) in the cabinet body (10), the exit of sampling steel bottle (1) sets up ooff valve (2), sampling steel bottle (1) exit linkage has gas-supply pipe (4) and returns appearance pipe (11), gas-supply pipe (4) are connected with appearance pipe (6) through three-way valve (7), another port of three-way valve (7) is connected with nitrogen gas purging pipe (9), come the bypass connection on appearance pipe (6) and have urgent sampling pipe (8), the inside lower part of the cabinet body (10) is provided with heating spiral pipe (13), heating spiral pipe (13) are provided with protection casing (14) that can rotate.
2. A closed sampling device for vinyl chloride according to claim 1, characterized in that: the sampling steel cylinder (1) imports and exports the ooff valve (2) from top to bottom the end through quick-operation joint (3) respectively with gas-supply pipe (4) with return appearance pipe (11) be connected, the sampling steel cylinder (1) import and export the ooff valve (2) the tail end through communicating pipe connection.
3. A closed sampling device for vinyl chloride according to claim 1, characterized in that: the device is characterized in that a conveying pump (5) is arranged on the gas conveying pipe (4), and a control valve (12) is arranged on the sample returning pipe (11), the nitrogen purging pipe (9) and the emergency sampling pipe (8).
4. A closed sampling device for vinyl chloride according to claim 1, characterized in that: the both ends of protection casing (14) are through swivel mount (15) and the both ends swivelling joint of heating spiral pipe (13), protection casing (14) adopt thermal-insulated asbestos board to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122892504.7U CN216847092U (en) | 2021-11-24 | 2021-11-24 | Be used for airtight sampling device of chloroethylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122892504.7U CN216847092U (en) | 2021-11-24 | 2021-11-24 | Be used for airtight sampling device of chloroethylene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216847092U true CN216847092U (en) | 2022-06-28 |
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ID=82102556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122892504.7U Active CN216847092U (en) | 2021-11-24 | 2021-11-24 | Be used for airtight sampling device of chloroethylene |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216847092U (en) |
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2021
- 2021-11-24 CN CN202122892504.7U patent/CN216847092U/en active Active
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