CN213434324U

CN213434324U - Liquid feeding device

Info

Publication number: CN213434324U
Application number: CN202021788848.2U
Authority: CN
Inventors: 苏长流; 王进利; 侯华民; 王斌
Original assignee: Linhai Jianxin Chemical Co ltd
Current assignee: Linhai Jianxin Chemical Co ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-06-15
Anticipated expiration: 2030-08-24

Abstract

The application discloses liquid feed arrangement relates to methyl bromide production field, and it includes the stock solution bucket, and the bottom intercommunication of stock solution bucket has the catheter, and the catheter is used for communicateing to reaction unit, still is connected with pressure device on the stock solution bucket, and pressure device is used for improving the pressure in the stock solution bucket. Through setting up pressure device, pressure device pressurizes the stock solution bucket to make the liquid discharge in the drain pipe quicker, thereby reach and make the faster effect of sulphur bromide filling speed.

Description

Liquid feeding device

Technical Field

The application relates to the field of methyl bromide production, and more particularly, to a liquid feeding device.

Background

When the bromine method is adopted to produce the bromomethane, firstly, bromine and sulfur are mixed to prepare sulfur bromide, then the sulfur bromide is dripped into methanol to react at 50-60 ℃, reactants are continuously evaporated to obtain the bromomethane, the bromomethane gas is washed by 5 percent of caustic soda solution, washed by sulfuric acid in an acid washing tower, dried by anhydrous calcium chloride in a drying tower, and finally compressed and liquefied to obtain the product bromomethane.

In the actual operation process, the sulfur bromide is generally stored in a liquid storage barrel in a sealing way, and the bottom of the liquid storage barrel is connected with a liquid guide pipe which is used for communicating the liquid guide pipe to a reaction kettle.

During the actual use, realize supplementing into reation kettle with sulphur bromide through gravity. However, such a raw material supply method requires a slow speed of supplying sulfur bromide and thus needs to be improved.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the speed of sulfur bromide feeding is slow, the application provides a liquid feeding device.

The application provides a liquid feed arrangement adopts following technical scheme:

the liquid feeding device comprises a liquid storage barrel, wherein the bottom of the liquid storage barrel is communicated with a liquid guide pipe, the liquid guide pipe is used for communicating the liquid guide pipe to a reaction device, the liquid storage barrel is also connected with a pressurizing device, and the pressurizing device is used for improving the pressure in the liquid storage barrel.

Through above-mentioned technical scheme, pressurize the stock solution bucket through pressure device to make the liquid discharge in the drain pipe quicker, thereby reach and make the faster effect of sulphur bromide filling speed.

Preferably, the pressurizing device comprises an air duct communicated with the interior of the liquid storage barrel and an air source communicated with the air duct and far away from the liquid storage barrel.

Through the technical scheme, the liquid storage barrel is inflated through the air source, so that the purpose of pressurization is realized, and the pressurization operation is more convenient.

Preferably, the gas source is a nitrogen cylinder.

Through above-mentioned technical scheme, nitrogen gas is difficult for reacting with sulphur bromide, also can not disturb the reaction of sulphur bromide and methane, pressurizes through nitrogen gas for methyl bromide's production is more stable.

Preferably, the air guide pipe is communicated to the top of the liquid storage barrel, and one end of the air guide pipe, which is close to the air source, is detachably connected with the air source; the air guide pipe is connected with a one-way valve, and the one-way valve enables the guide pipe to be in one-way conduction from the air source to the liquid storage barrel.

Through above-mentioned technical scheme, nitrogen cylinder's junction and air duct adopt threaded connection usually to the realization can be dismantled. When the nitrogen cylinder is exhausted and needs to be replaced, the arrangement of the check valve can reduce the gas backflushing in the liquid storage barrel, so that the nitrogen cylinder is more convenient to replace.

Preferably, the liquid guide pipe is connected with a control valve, and the control valve is used for controlling the on-off state of the liquid storage barrel and the reaction device.

Through above-mentioned technical scheme, set up the control valve, the control valve can control the disconnected state of stock solution bucket and reaction unit to realize quantitative control to the reaction unit is mended to sulfur bromide liquid, make holistic use more convenient.

Preferably, the upper end of the liquid storage barrel is also provided with a liquid supplementing pipe, and the upper cover of the liquid supplementing pipe is provided with a sealing cover.

Through above-mentioned technical scheme, set up fluid infusion pipe and sealed lid, the convenience is in time mended sulphur bromide liquid in to the stock solution bucket.

Preferably, a cover plate covering the liquid supplementing pipe is arranged in the liquid storage barrel, the cover plate is connected to the inner wall of the liquid storage barrel through an elastic connecting piece, and the cover plate covers the end opening of the liquid supplementing pipe close to the liquid storage barrel through the elasticity of the elastic connecting piece; the sealing cover is in threaded connection with a push rod, and the push rod is used for abutting against one end, close to the sealing cover, of the cover plate to enable the cover plate to be opened.

Through above-mentioned technical scheme, set up apron and ejector pin, when needs mend liquid in to the stock solution bucket, can open the apron through the ejector pin, the pressure in the stock solution bucket is great this moment, and the gas of stock solution bucket can be discharged through the thread gap of ejector pin and sealed lid for the pressure release operation in the stock solution bucket is more convenient, thereby conveniently mends liquid in to the stock solution bucket through the moisturizing pipe.

Preferably, a positioning column is fixed at one end of the sealing cover close to the liquid supplementing pipe, and a plurality of through holes communicated with the liquid supplementing pipe are further formed at one end of the sealing cover far away from the cover plate; the ejector pin corresponds wears to establish the reference column setting, the cover is equipped with the filter block on the ejector pin, the filter block is located the reference column and keeps away from the one end of sealed lid, the filter block is located the fluid infusion intraductal just the periphery wall of filter block all contradicts in the fluid infusion intraductal wall.

Through above-mentioned technical scheme, set up the filter block, can filter the interior exhaust gas of fluid infusion pipe through the filter block, reduce the sulphur bromide droplet and follow the circumstances of gas outgoing to make holistic use environmental protection more.

Preferably, the ejector rod is further provided with a positioning plate, the positioning plate is located on one side, away from the positioning column, of the filter block, and the positioning plate is used for limiting the filter block to be separated from the ejector rod.

Through above-mentioned technical scheme, set up the locating plate, can carry on spacingly to the filter block through the locating plate for the filter block can follow opening of sealed lid and take out, thereby makes packing into and tearing open of filter block more convenient.

In summary, the present application includes at least one of the following beneficial technical effects:

(1) the pressurizing device is arranged, so that the sulfur bromide supplementing speed is higher;

(2) the integral use is more convenient by arranging the check valve and the control valve;

(3) through setting up the filter block for holistic use is environmental protection more.

Drawings

FIG. 1 is an overall schematic view of an embodiment;

fig. 2 is a partial cross-sectional schematic view of an embodiment.

Reference numerals: 1. a liquid storage barrel; 2. a catheter; 3. a control valve; 4. a pressurizing device; 41. an air duct; 42. a gas source; 5. a one-way valve; 6. a liquid supplementing pipe; 7. a cover plate; 8. an elastic connecting member; 9. a sealing cover; 10. a positioning column; 11. a through hole; 12. a top rod; 13. a grip portion; 14. a filter block; 15. and (7) positioning the plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

Example (b):

a liquid feeding device, as shown in figure 1, comprises a liquid storage barrel 1, wherein the liquid storage barrel 1 is a closed barrel body and is vertically arranged. The bottom of the liquid storage barrel 1 is communicated with a liquid guide pipe 2, the liquid guide pipe 2 is connected with a control valve 3, and the control valve 3 is a pneumatic valve or a ball valve. In practical use, the end of the liquid guide tube 2 far away from the liquid storage barrel 1 is used for being communicated to a reaction device (not shown), which is generally a reaction kettle. The on-off state of the liquid storage barrel 1 and the reaction device is controlled by the control valve 3.

Still be connected with pressure device 4 on the stock solution bucket 1, pressure device 4 includes 41 with the inside air duct of communicating of stock solution bucket 1 and communicates in air duct 41 and keep away from the air supply 42 of stock solution bucket 1, and air supply 42 is the nitrogen cylinder, including the relief pressure valve of adjusting gas exhaust pressure on the nitrogen cylinder. The air duct 41 communicates to the top of the liquid storage barrel 1, one end of the air duct 41 close to the air source 42 is detachably connected with the air source 42, during actual use, one end of the air duct 41 close to the air source 42 is provided with a threaded section, and the threaded connection at the joint of the threaded section and the air source 42 is realized to be detachable. The air duct 41 is connected with a one-way valve 5, and the one-way valve 5 enables the guide tube to be in one-way conduction from the air source 42 to the liquid storage barrel 1. When the nitrogen cylinder runs out and needs to be replaced, the arrangement of the check valve 5 can reduce the gas backflushing in the liquid storage barrel 1, so that the nitrogen cylinder is more convenient to replace.

As shown in fig. 1 and 2, a liquid replenishing pipe 6 is further disposed at the upper end of the liquid storage barrel 1, and the liquid replenishing pipe 6 is a circular pipe and is vertically disposed. Be provided with the apron 7 that the lid closed liquid feed pipe 6 in the stock solution bucket 1, the apron 7 is close to the one end of liquid feed pipe 6 and is usually including the rubber layer, and wherein one side of apron 7 is fixed with elastic connecting piece 8, and elastic connecting piece 8 is the rubber material, and 8 fixed connection of elastic connecting piece are in the inner wall of stock solution bucket 1, and apron 7 passes through elastic connecting piece 8 to be connected on 1 inner wall of stock solution bucket, and elastic connecting piece 8's elasticity makes 7 lids of apron close the port that liquid feed pipe 6 is close to stock solution bucket 1.

As shown in FIG. 2, a sealing cover 9 is screwed on the fluid infusion tube 6, the sealing cover 9 is a round cover, and the sealing cover 9 is arranged on the upper end of the fluid infusion tube 6. The one end that sealed lid 9 is close to fluid infusion pipe 6 is coaxial to be fixed with reference column 10, and reference column 10 is cylindrical setting, and reference column 10 is less than the internal diameter setting of fluid infusion pipe 6, and a plurality of through-holes 11 that communicate with fluid infusion pipe 6 have still been seted up to the one end that sealed lid 9 was kept away from apron 7. The sealing cover 9 is connected with a top rod 12 in a threaded manner, and the top rod 12 correspondingly penetrates through the positioning column 10. In this embodiment, the top rod 12 is connected with the sealing cover 9 and the positioning column 10 by screw threads. One end of the ejector rod 12 close to the cover plate 7 is arranged in a ball head shape, and one end of the ejector rod 12 far away from the cover plate 7 is fixed with a holding part 13. When the push rod 12 is rotated by the holding portion 13 so that the push rod 12 moves toward the cover plate 7, the push rod 12 is used for abutting against one end of the cover plate 7 close to the sealing cover 9 so that the cover plate 7 is opened.

The ejector rod 12 is sleeved with a filter block 14, the filter block 14 can be a cotton block, the filter block 14 is located at one end, away from the sealing cover 9, of the positioning column 10, the filter block 14 is located in the liquid supplementing pipe 6, and the peripheral wall of the filter block 14 abuts against the inner wall of the liquid supplementing pipe 6. Still be fixed with locating plate 15 on ejector pin 12, locating plate 15 is located the filtration piece 14 and keeps away from one side of reference column 10, and locating plate 15 is the plectane, and the diameter of locating plate 15 is less than the internal diameter of moisturizing pipe 6, and the diameter of locating plate 15 is greater than the internal diameter setting of filtration piece 14, and locating plate 15 is used for restricting filtration piece 14 and breaks away from ejector pin 12.

The working principle of the embodiment is as follows:

during the in-service use, through the relief pressure valve of opening air supply 42, in replenishing the liquid storage barrel 1 with the nitrogen gas of air supply 42, the atmospheric pressure in the liquid storage barrel 1 rose this moment, opens control valve 3 this moment, and the pressure in the liquid storage barrel 1 improves and makes the liquid discharge in catheter 2 quicker to reach the speed that the sulphur bromide liquid was replenished to reation kettle when making in-service use faster.

When liquid needs to be replenished into the liquid storage barrel 1, the pressure reducing valve of the control air source 42 is closed, the control valve 3 is adjusted to be in a closed state, then the ejector rod 12 is screwed to enable the ejector rod 12 to abut against the cover plate 7 and be opened, and because the air pressure in the liquid storage barrel 1 is large, the air in the liquid storage barrel 1 can be discharged from the through hole 11 of the sealing cover 9 through the liquid replenishing pipe 6 and the filter block 14 after being filtered. After atmospheric pressure and external balance in the stock solution bucket 1, twist ejector pin 12 to the state that breaks away from conflict with apron 7, then twist out sealed lid 9 and take out filter block 14, then pour into liquid infusion pipe 6 with liquid, when pouring into, the muzzle conflict apron 7 that liquid pours into makes apron 7 open. After the liquid is supplemented, the filter block 14 and the sealing cover 9 are covered on the liquid supplementing pipe 6 again.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a liquid feed arrangement, includes stock solution bucket (1), the bottom intercommunication of stock solution bucket (1) has catheter (2), catheter (2) are used for communicateing to reaction unit, its characterized in that: the liquid storage barrel (1) is also connected with a pressurizing device (4), and the pressurizing device (4) is used for increasing the pressure in the liquid storage barrel (1); a liquid supplementing pipe (6) is further arranged at the upper end of the liquid storage barrel (1), a sealing cover (9) is covered on the liquid supplementing pipe (6), a cover plate (7) covering the liquid supplementing pipe (6) is arranged in the liquid storage barrel (1), the cover plate (7) is connected to the inner wall of the liquid storage barrel (1) through an elastic connecting piece (8), and the cover plate (7) is covered on a port, close to the liquid storage barrel (1), of the liquid supplementing pipe (6) through the elastic force of the elastic connecting piece (8); the sealing cover is characterized in that the sealing cover (9) is connected with a push rod (12) in a threaded mode, and the push rod (12) is used for abutting against one end, close to the sealing cover (9), of the cover plate (7) to enable the cover plate (7) to be opened.

2. A liquid feeding device as claimed in claim 1, wherein: the pressurizing device (4) comprises an air duct (41) communicated with the interior of the liquid storage barrel (1) and an air source (42) communicated with the air duct (41) and far away from the liquid storage barrel (1).

3. A liquid feeding device as claimed in claim 2, wherein: the gas source (42) is a nitrogen cylinder.

4. A liquid feeding device according to claim 3, wherein: the gas guide pipe (41) is communicated to the top of the liquid storage barrel (1), and one end, close to the gas source (42), of the gas guide pipe (41) is detachably connected with the gas source (42); the air guide pipe (41) is connected with a one-way valve (5), and the one-way valve (5) enables the guide pipe to be in one-way conduction from the air source (42) to the liquid storage barrel (1).

5. A liquid feeding device as claimed in claim 2, wherein: the liquid guide pipe (2) is connected with a control valve (3), and the control valve (3) is used for controlling the on-off state of the liquid storage barrel (1) and the reaction device.

6. A liquid feeding device as claimed in claim 1, wherein: a positioning column (10) is fixed at one end of the sealing cover (9) close to the liquid supplementing pipe (6), and a plurality of through holes (11) communicated with the liquid supplementing pipe (6) are formed at one end of the sealing cover (9) far away from the cover plate (7); ejector pin (12) are corresponding to wear to establish reference column (10) and set up, the cover is equipped with filter block (14) on ejector pin (12), filter block (14) are located reference column (10) and keep away from the one end of sealed lid (9), filter block (14) are located solution infusion pipe (6) just the periphery wall of filter block (14) all contradicts in solution infusion pipe (6) inner wall.

7. A liquid feeding device according to claim 6, wherein: the push rod (12) is further provided with a positioning plate (15), the positioning plate (15) is located on one side, away from the positioning column (10), of the filter block (14), and the positioning plate (15) is used for limiting the filter block (14) to be separated from the push rod (12).