CN212092175U

CN212092175U - Accurate metering device of solvent

Info

Publication number: CN212092175U
Application number: CN202020607127.0U
Authority: CN
Inventors: 李君�; 刘建; 张宝仓; 刘永帅; 李乐
Original assignee: Tianjin Luhua Hongjin New Material Technology Co ltd
Current assignee: Tianjin Luhua Hongjin New Material Technology Co ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2020-12-08
Anticipated expiration: 2030-04-21

Abstract

The utility model provides an accurate metering device of solvent, including first metering tank and second metering tank, first metering tank top is equipped with inlet pipe and first inlet tube, second metering tank top is equipped with conveying pipeline and second inlet tube, first inlet tube top and second inlet tube intercommunication, first metering tank and second metering tank bottom are equipped with first discharging pipe and second discharging pipe respectively, first discharging pipe middle part intercommunication has the blow off pipe, blow off pipe lateral wall intercommunication second discharging pipe. This kind of accurate metering device of solvent, the scale reading of equal-quantity solvent when passing through first measuring tank and second measuring tank is measured to the accessible, calculates and judges the volume of remaining of this kind of solvent at first measuring tank bucket wall, and then measures the statistics in the second measuring tank is added to the solvent, can reduce the numerical error of the ejection of compact of second discharging pipe through the mode of reserving the section of thick bamboo wall volume of remaining, and then reach the effect of accurate measurement.

Description

Accurate metering device of solvent

Technical Field

The utility model belongs to the technical field of the chemical industry, especially indicate a solvent accurate metering device.

Background

The hydrogenated petroleum resin polymerization reaction is usually carried out in a polymerization solvent, and the proportion of the polymerization solvent is properly selected, so that the safe reaction can be ensured, the excessive production of intermediate byproducts can be avoided, and the product quality can be ensured. The accurate addition of the polymerization solvent is of great importance, the addition of the polymerization solvent in the prior art needs a metering device to control the amount of the added solvent, different cylinder wall residual amounts are generated on a metering barrel when the metering device discharges materials after metering, so that metering errors exist at a discharge port, and the metering accuracy of the solvent is low.

SUMMERY OF THE UTILITY MODEL

For solving the deficiencies of the prior art, the utility model provides a solvent accurate metering device.

The technical scheme of the utility model is realized like this:

an accurate solvent metering device comprises a first metering barrel and a second metering barrel, wherein a feed pipe and a first water inlet pipe are arranged at the top end of the first metering barrel, a feed valve and a first water valve are respectively arranged on the feed pipe and the first water inlet pipe, a feed pipe and a second water inlet pipe are arranged at the top end of the second metering barrel, a second water valve is arranged on the second water inlet pipe, the top end of the first water inlet pipe is communicated with the second water inlet pipe, a first discharge pipe and a second discharge pipe are respectively arranged at the bottom ends of the first metering barrel and the second metering barrel, a first discharge valve and a first control valve are arranged on the first discharge pipe, a second discharge valve and a second control valve are arranged on the second discharge pipe, a discharge pipe is communicated with the middle part of the first discharge pipe, the side wall of the discharge pipe is communicated with the second discharge pipe, a first discharge valve and a second discharge valve are arranged on the discharge pipe, and the bottom end of, the output and the conveying pipeline bottom intercommunication of the pump body, the lateral wall of first batch meter bucket and second batch meter bucket all is equipped with the scale mark.

Furthermore, the first discharge valve is positioned on the upper side of the first control valve, and the sewage discharge pipe is connected between the first discharge valve and the first control valve.

Furthermore, the first blowdown valve is located between first discharging pipe and the second discharging pipe, the second blowdown valve is located the outside of second discharging pipe.

Furthermore, the second bleeder valve is arranged at the upper side of the second control valve, and the sewage discharge pipe is connected to the second discharge pipe between the second bleeder valve and the second control valve.

Furthermore, the first metering bucket and the second metering bucket are identical in shape and size and are transparent glass metering buckets.

Compared with the prior art, the beneficial effects of the utility model are that: this kind of accurate metering device of solvent, through setting up the first batch meter identical with the second batch meter, the accessible measures the scale reading of equivalent solvent when first batch meter and second batch meter, calculate and judge the volume of remaining of this kind of solvent at first batch meter bucket bung wall, and then measure the count in the second batch meter is added to the solvent, can reduce the numerical error of the ejection of compact of second discharging pipe through the mode of reserving the section of thick bamboo wall volume of remaining, and then reach the effect of accurate measurement.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a first metering bucket; 2. a second metering bucket; 3. a blow-off pipe; 31. a first waste valve; 32. a second blowoff valve; 4. a feed pipe; 41. a feed valve; 5. a first discharge pipe; 51. a first discharge valve; 52. a first control valve; 6. a first water inlet pipe; 61. a first water valve; 7. a pump body; 71. a delivery pipe; 8. a second water inlet pipe; 81. a second water valve; 9. a second discharge pipe; 91. a second discharge valve; 92. second control valve, 10, graduation mark.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1: the utility model provides an accurate metering device of solvent, includes first metering tank 1 and second metering tank 2, the shape size of first metering tank 1 and second metering tank 2 is all the same, is the transparent glass measuring tank, and first metering tank 1 is used as the use of the volume of remaining in 2 inner tube walls of second metering tank of testing different solutions, and first metering tank 1 is the control metering tank promptly, and second metering tank 2 is actual metering tank. The top end of the first metering bucket 1 is provided with a feeding pipe 4 and a first water inlet pipe 6, the feeding pipe 4 and the first water inlet pipe 6 are respectively provided with a feeding valve 41 and a first water valve 61, the feeding of the feeding pipe 4 can be controlled through the feeding valve 41, the top end of the second metering bucket 2 is provided with a feeding pipe 71 and a second water inlet pipe 8, the second water inlet pipe 8 is provided with a second water valve 81, the outer end of the second water inlet pipe 8 is connected with the water outlet end of the water pump, the first water valve 61 and the second water valve 81 are simultaneously opened, the first control valve 52 and the second control valve 92 are closed, the water of the second water inlet pipe 8 enters the first metering bucket 1 from the first water inlet pipe 6, the bottom end of the second water inlet pipe 8 enters the second metering bucket 2, after the two metering buckets are washed, the water enters the sewage discharge pipe 3 from the first feeding pipe 5 and the second feeding pipe 9, the first sewage discharge valve 31 and the second sewage discharge valve 32 are opened, so that the cleaned, the top end of the first water inlet pipe 6 is communicated with the second water inlet pipe 8, the bottom ends of the first measuring tank 1 and the second measuring tank 2 are respectively provided with a first discharging pipe 5 and a second discharging pipe 9, the first discharging pipe 5 is provided with a first discharging valve 51 and a first control valve 52, the first discharging valve 51 is positioned on the upper side of the first control valve 52, and the sewage discharge pipe 3 is connected between the first discharging valve 51 and the first control valve 52. Be equipped with second bleeder valve 91 and second control valve 92 on the second discharging pipe 9, 5 middle part intercommunications of first discharging pipe have blow off pipe 3, 3 lateral walls of blow off pipe intercommunication second discharging pipes 9, second bleeder valve 91 is located the upside of second control valve 92, blow off pipe 3 is connected on second discharging pipe 9 between second bleeder valve 91 and the second control valve 92. Be equipped with first blowoff valve 31 and second blowoff valve 32 on the blow off pipe 3, first blowoff valve 31 is located between first discharging pipe 5 and the second discharging pipe 9, second blowoff valve 32 is located the outside of second discharging pipe 9. The bottom end of the first discharging pipe 5 is connected with a pump body 7, the pump body 7 is externally connected with a power supply and a control switch, the output end of the pump body 7 is communicated with the bottom end of the feeding pipe 71, and the outer side walls of the first metering barrel 1 and the second metering barrel 2 are provided with scale marks.

As shown in fig. 1: the operation mode of the solvent accurate metering device is as follows:

firstly, introducing a solvent material into a first metering barrel 1 from a feeding pipe 4, wherein the first metering barrel 1 is used as a barrel wall residue detection metering barrel, and recording a reading A1 displayed by a scale mark 10 in the first metering barrel 1;

then, closing the feed valve 41, starting the pump body 7 (opening the first discharge valve 51 and the second discharge valve 52, and closing the first blowdown valve 31), so that the solvent metered in the first metering tank 1 can be pumped out through the first discharge pipe 5, and the solvent is input into the inner cavity of the second metering tank 2 through the feed delivery pipe 71, and the reading of the scale mark 10 of the second metering tank 2 is recorded as B1;

then, repeating the steps, and recording the readings in the first measuring bucket 1 and the second measuring bucket 2 as A2 and B2, wherein the residual quantity of the solution in the first measuring bucket 1 after loss is C, and the residual quantities of the first discharging pipe 5 and the conveying pipe 71 during transportation are D;

finally, because the residual quantity in the conveying pipeline 71 can not change (increase or decrease) during secondary use, the following can be obtained according to the law of conservation of energy: a1-C-D ═ B1; the residual quantity of the solution in the second measuring tank 2 can be inferred by a2-C being B2, so that the quantity of the solvent added into the second measuring tank 2 needs to be increased on the basis of the reading of the required scale, and the accuracy of the measuring data can be ensured when the second discharging valve 91 and the second control valve 92 are opened to discharge from the second discharging pipe 9.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An accurate metering device of solvent which is characterized in that: including first batch meter bucket (1) and second batch meter bucket (2), first batch meter bucket (1) top is equipped with inlet pipe (4) and first inlet tube (6), be equipped with feed valve (41) and first water valve (61) on inlet pipe (4) and first inlet tube (6) respectively, second batch meter bucket (2) top is equipped with conveying pipeline (71) and second inlet tube (8), be equipped with second water valve (81) on second inlet tube (8), first inlet tube (6) top and second inlet tube (8) intercommunication, first batch meter bucket (1) and second batch meter bucket (2) bottom are equipped with first discharging pipe (5) and second discharging pipe (9) respectively, be equipped with first bleeder valve (51) and first control valve (52) on first discharging pipe (5), be equipped with second bleeder valve (91) and second control valve (92) on second discharging pipe (9), first discharging pipe (5) middle part intercommunication has blow off pipe (3), blow off pipe (3) lateral wall intercommunication second discharging pipe (9), be equipped with first blowoff valve (31) and second blowoff valve (32) on blow off pipe (3), first discharging pipe (5) bottom is connected with the pump body (7), the output and conveying pipeline (71) bottom intercommunication of the pump body (7), the lateral wall of first batch meter bucket (1) and second batch meter bucket (2) all is equipped with the scale mark.

2. The precise solvent metering device of claim 1, wherein: the first discharge valve (51) is positioned at the upper side of the first control valve (52), and the sewage discharge pipe (3) is connected between the first discharge valve (51) and the first control valve (52).

3. The precise solvent metering device of claim 1, wherein: the first waste valve (31) is located between the first discharge pipe (5) and the second discharge pipe (9), and the second waste valve (32) is located outside the second discharge pipe (9).

4. The precise solvent metering device of claim 1, wherein: the second discharge valve (91) is positioned at the upper side of the second control valve (92), and the sewage discharge pipe (3) is connected to a second discharge pipe (9) between the second discharge valve (91) and the second control valve (92).

5. The precise solvent metering device of claim 1, wherein: the first metering barrel (1) and the second metering barrel (2) are identical in shape and size and are transparent glass metering barrels.