CN214681079U - Phenolphthalein acid adding device - Google Patents

Abstract

The utility model discloses a phenolphthalein acid adding device, which belongs to the technical field of phenolphthalein acid adding devices and comprises a tank body, wherein a feeding pipe is vertically embedded into one side of the top end of the tank body, a bottom pipe body of the feeding pipe downwards extends into the lower half section of the tank body, a vacuum pipe extends out of the surface of the tank body on one side of the feeding pipe, an emptying pipe extends out of one side of the pipe body of the vacuum pipe, the components of the device are formed by oxidation-resistant and corrosion-resistant polyester material components, the tank body is arranged at a position higher than a reaction kettle, sulfuric acid is pumped into the device by utilizing the vacuum action, the sulfuric acid in the device is added into the reaction kettle by utilizing the self gravity action, when in use, the front end of the feeding pipe is inserted into the material sulfuric acid, the sulfuric acid can be guided into the device, the sulfuric acid is added into the reaction kettle according to the expected speed and quantity by switching a valve at a discharging pipe, the tank body keeps isobaric with the outside through a breather valve, the process is almost totally-enclosed operation, has no direct contact with personnel, and is safe to use.

Description

Phenolphthalein acid adding device

Technical Field

The utility model relates to a phenolphthalein acidification device technical field especially relates to a phenolphthalein acidification device.

Background

Sulfuric acid is a commonly used auxiliary agent in chemical reactions, and the consumption is large in the production process of synthesizing phenolphthalein. Sulfuric acid is a hazardous chemical with strong corrosivity and oxidation; meanwhile, the water-absorbing agent has strong water absorption, and can absorb water from the air to change the concentration of the water-absorbing agent. Because of the inherent material properties, safety accidents are easy to happen in the production and use processes. Although the vapor pressure of the sulfuric acid is not high, the sulfuric acid still needs to be communicated with the outside for isobaric measurement for safety, and the communication is easy to absorb external moisture so as to reduce the concentration of the sulfuric acid. In addition, some insoluble impurities in the material, which are not easily filtered out due to the strong oxidizing/corrosive nature of the material, may have some adverse effect on the chemical reaction and should be excluded. Therefore, it is particularly important to develop a device for safely adding sulfuric acid to phenolphthalein synthesis process.

Because concentrated sulfuric acid has strong corrosivity and oxidability, safety accidents are easy to happen in the production and use processes, some insoluble impurities are not easy to filter, and some adverse effects can be caused when the concentrated sulfuric acid is added into a chemical reaction. And because of the strong water absorption, the water in the air is easily absorbed to reduce the content of the water, thereby influencing the accuracy of the feeding and metering.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of phenolphthalein acidification device can effectively solve above-mentioned problem.

The utility model provides a specific technical scheme as follows:

the utility model provides a pair of phenolphthalein acidification device, which comprises a tank body, the vertical embedding in top one side of the jar body has the inlet pipe, and the bottom body of inlet pipe stretches into the second section of the jar body downwards, the jar body surface of inlet pipe one side stretches out there is the vacuum tube, and stretches out on one side of the body of vacuum tube has the blow-down pipe, the jar body top of vacuum tube one side stretches out there is the straight tube, and the top intercommunication of straight tube is connected with the breather valve, the inside packing of breather valve has the silica gel drier, the scale is installed to outer wall one side of the jar body, and stretches out on one side of the jar body of scale below has the discharging pipe, the jar body bottom of discharging pipe below stretches out downwards has the blow off pipe, the valve is installed to the body department of vacuum tube, blow-down pipe, inlet pipe, discharging pipe and blow off pipe.

Optionally, the material of jar body, inlet pipe, vacuum tube, blow-down pipe, straight tube, breather valve, discharging pipe and blow off pipe is the polyester material.

Optionally, the inlet pipe stretches into body of the jar body upper surface department and has seted up the micropore, and the micropore has seted up two sets ofly at the surface symmetry of inlet pipe.

Optionally, the bottom structure of the tank body is a funnel-shaped structure, and a drain pipe extends downwards from the funnel-shaped bottom of the tank body.

The utility model has the advantages as follows:

the utility model discloses with the help of a jar body, the vacuum tube, the blow-down pipe, the inlet pipe, the discharging pipe, the breather valve, the phenolphthalein acidification device is constituteed to scale and blow off pipe, and phenolphthalein acidification device needs to be higher than reation kettle height 2 meters at least when installing, and the discharging pipe of jar body needs to connect reation kettle, close the valve of all pipeline departments during the use, put through vacuum tube and vacuum pump, open the valve of vacuum tube department and take out the jar body to vacuum state, open the valve of inlet pipe department, through extending to jar body bottom and surface set up the micropore inlet pipe in with the material steadily leading-in jar body, the breather valve that has the silica gel drier makes jar body inside and outside keep isobaric, can prevent again that jar external vapor from getting into in jar, avoid jar internal sulphuric acid to absorb water and make concentration reduce; silica gel drier absorbs water the back through dry repeatedly usable, convenient to use, and is with low costs, establishes the blow off pipe at the bottom of the jar body, and the blow off pipe is located the below of discharging pipe, and to some insoluble depositable impurity in the material, can deposit in jar body bottom, then opens the valve of blow off pipe department and can discharge, avoids adding impurity to reation kettle in and causes the process deviation. The outside of the tank body is provided with a graduated scale which can measure the volume or weight of the sulfuric acid added each time.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of a phenolphthalein acidification device according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of a breather valve of a phenolphthalein acidification device according to an embodiment of the present invention.

In the figure: 1. a tank body; 2. a feed pipe; 3. a vacuum tube; 4. an emptying pipe; 5. a straight pipe; 6. a breather valve; 7. a silica gel desiccant; 8. a discharge pipe; 9. a blow-off pipe; 10. a graduated scale; 11. and (4) micro-pores.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, 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.

A phenolphthalein acidification device according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 2.

Referring to fig. 1 and 2, a phenolphthalein acidification device provided by an embodiment of the present invention includes a tank body 1, a feeding pipe 2 is vertically embedded in one side of the top end of the tank body 1, and the tube body at the bottom end of the feeding tube 2 extends downwards into the lower half section of the tank body 1, a vacuum tube 3 extends out of the surface of the tank body 1 at one side of the feeding tube 2, and one side of the tube body of the vacuum tube 3 extends out of a vent pipe 4, the top end of the tank body 1 at one side of the vacuum tube 3 extends out of a straight tube 5, and the top end of the straight pipe 5 is communicated with a breather valve 6, the inside of the breather valve 6 is filled with a silica gel desiccant 7, one side of the outer wall of the tank body 1 is provided with a graduated scale 10, a discharge pipe 8 extends out of one side of the tank body 1 below the graduated scale 10, a sewage discharge pipe 9 extends downwards from the bottom end of the tank body 1 below the discharge pipe 8, and valves are arranged at the pipe bodies of the vacuum pipe 3, the emptying pipe 4, the feeding pipe 2, the discharging pipe 8 and the sewage discharging pipe 9.

Illustratively, a phenolphthalein acid adding device is formed by a tank body 1, a vacuum tube 3, an emptying tube 4, a feeding tube 2, a discharging tube 8, a breather valve 6, a graduated scale 10 and a drainage tube 9, the phenolphthalein acid adding device needs to be higher than the reaction kettle by at least 2 meters when being installed, the discharging tube 8 of the tank body 1 needs to be connected with the reaction kettle, valves at all pipelines are closed when the phenolphthalein acid adding device is used, the vacuum tube 3 is communicated with a vacuum pump, the valve at the vacuum tube 3 is opened to pump the tank body 1 into a vacuum state, the valve at the feeding tube 2 is opened, materials are stably guided into the tank body 1 through the feeding tube 2 extending to the bottom end of the tank body 1, the breather valve 6 with a silica gel drying agent 7 keeps the pressure inside and outside the tank body 1 equal, and can prevent water and gas outside the tank body 1 from entering the tank, so as to avoid that the concentration of sulfuric acid in the tank body 1 is reduced; silica gel drier 7 is through dry repeatedly usable after absorbing water, convenient to use, and is with low costs, establishes blow off pipe 9 at the bottom of jar body 1, and blow off pipe 9 is located the below of discharging pipe 8, and to some insoluble depositable impurity in the material, can deposit in jar body 1 bottom, then opens the valve that blow off pipe 9 located and can discharge, avoids adding impurity to reation kettle in and causes the process deviation. The outside of the tank body 1 is provided with a graduated scale 10 which can measure the volume or weight of the sulfuric acid added each time.

Referring to fig. 1, the tank body 1, the feeding pipe 2, the vacuum pipe 3, the emptying pipe 4, the straight pipe 5, the breather valve 6, the discharging pipe 8 and the sewage discharging pipe 9 are made of polyester.

The chemical properties of the tank body 1, the feeding pipe 2, the vacuum pipe 3, the emptying pipe 4, the straight pipe 5, the breather valve 6, the discharging pipe 8 and the blow-off pipe 9 made of polyester materials are stable, and the influences of strong oxidation and strong corrosion of sulfuric acid can be well overcome.

Referring to fig. 1, the feed pipe 2 has two groups of micropores 11 on the upper surface of the pipe body extending into the tank body 1, and the micropores 11 are symmetrically formed on the surface of the feed pipe 2.

Illustratively, the fine holes 11 on the surface of the feeding pipe 2 can avoid the feeding siphon effect during feeding.

Referring to fig. 1, the bottom structure of the tank body 1 is funnel-shaped, and a sewage discharge pipe 9 extends downwards from the funnel-shaped bottom of the tank body 1.

Illustratively, the bottom end of the tank body 1 with a funnel-shaped structure can well discharge deposited impurities from the sewage draining pipe 9.

The utility model relates to a phenolphthalein acid adding device, which comprises a body 1, a vacuum tube 3, a blow-down pipe 4, a feed pipe 2, a discharge pipe 8, a breather valve 6, a graduated scale 10 and a blow-off pipe 9, wherein the phenolphthalein acid adding device is required to be higher than a reaction kettle by at least 2 meters when being installed, the discharge pipe 8 of the tank body 1 needs to be connected with the reaction kettle, when in use, the valves at all the pipelines are closed, the vacuum pipe 3 is communicated with the vacuum pump, the valve at the position of the vacuum pipe 3 is opened to pump the tank body 1 into a vacuum state, the valve at the position of the feed pipe 2 is opened, the material is stably guided into the tank body 1 through the feeding pipe 2 which extends to the bottom end of the tank body 1 and is provided with micropores 11 on the surface, the inside and the outside of the tank body 1 are kept at equal pressure through the breather valve 6 with the silica gel desiccant 7, the moisture outside the tank body 1 can be prevented from entering the tank, and the concentration reduction caused by the water absorption of sulfuric acid in the tank body 1 is avoided; silica gel drier 7 is through dry repeatedly usable after absorbing water, convenient to use, and is with low costs, establishes blow off pipe 9 at the bottom of jar body 1, and blow off pipe 9 is located the below of discharging pipe 8, and to some insoluble depositable impurity in the material, can deposit in jar body 1 bottom, then opens the valve that blow off pipe 9 located and can discharge, avoids adding impurity to reation kettle in and causes the process deviation. The outside of the tank body 1 is provided with a graduated scale 10 which can measure the volume or weight of the sulfuric acid added each time.

The utility model relates to a phenolphthalein acidification device, which comprises a tank body 1; 2. a feed pipe; 3. a vacuum tube; 4. an emptying pipe; 5. a straight pipe; 6. a breather valve; 7. a silica gel desiccant; 8. a discharge pipe; 9. a blow-off pipe; 10. a graduated scale; 11. the microwells, elements are all standard elements or elements known to those skilled in the art, the structure and principle of which are known to those skilled in the art through technical manuals or through routine experimentation.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (4)

1. The utility model provides a phenolphthalein acidification device, includes jar body (1), its characterized in that: the vertical embedding in top one side of the jar body (1) has inlet pipe (2), and the bottom body of inlet pipe (2) stretches into the lower half section of the jar body (1) downwards, the jar body (1) surface of inlet pipe (2) one side is stretched out and is had vacuum tube (3), and stretches out on one side of the body of vacuum tube (3) and have blow-down pipe (4), the jar body (1) top of vacuum tube (3) one side is stretched out and is had straight tube (5), and the top intercommunication of straight tube (5) is connected with breather valve (6), the inside packing of breather valve (6) has silica gel drier (7), scale (10) are installed to outer wall one side of the jar body (1), and stretch out jar body (1) one side of scale (10) below has discharging pipe (8), the jar body (1) bottom of discharging pipe (8) below stretches out downwards has blow off pipe (9), vacuum tube (3), Valves are arranged at the pipe bodies of the emptying pipe (4), the feeding pipe (2), the discharging pipe (8) and the sewage discharging pipe (9).

2. The phenolphthalein acidification device according to claim 1, wherein: the material of the tank body (1), the feeding pipe (2), the vacuum pipe (3), the emptying pipe (4), the straight pipe (5), the breather valve (6), the discharging pipe (8) and the sewage discharging pipe (9) is polyester material.

3. The phenolphthalein acidification device according to claim 1, wherein: micropore (11) have been seted up to inlet pipe (2) pipe shaft upper surface department that stretches into jar body (1), and micropore (11) have seted up two sets ofly at the surface symmetry of inlet pipe (2).

4. The phenolphthalein acidification device according to claim 1, wherein: the bottom structure of the tank body (1) is a funnel-shaped structure, and a sewage discharge pipe (9) extends downwards from the funnel-shaped bottom of the tank body (1).

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