CN216704349U - Liquid tank - Google Patents

Abstract

The utility model discloses a liquid tank, comprising: a tank body; the stirring device comprises a stirring rod, at least one first stirring blade and at least one second stirring blade, one end of the stirring rod extends into the tank body, the first stirring blade and the second stirring blade are arranged at intervals along the axial direction of the stirring rod, and the first stirring blade and the second stirring blade are obliquely arranged relative to a reference plane and are opposite in oblique direction; the filter device comprises a shell, a cover body and a core body, wherein the top of the shell is open. According to the liquid tank disclosed by the embodiment of the utility model, the system is fully mixed through the stirring device, the crystallization is avoided, the toxic and harmful gases generated in the system can be absorbed through the filtering device, the pressure balance between the liquid tank and the external air is kept, and the reaction or monitoring requirements of the system generating harmful gases or volatile liquid under normal pressure can be met.

Description

Liquid tank

Technical Field

The utility model relates to the field of reactors, in particular to a liquid tank.

Background

Suitable vessels provide great convenience for reaction or monitoring, while conventional reaction or monitoring, particularly liquid phase reactions, is highly dependent on the reaction vessel. For example, if a homogeneous phase state is required during the reaction, a stirring device in the reaction vessel is required to continuously stir to achieve the purpose of uniform mixing during the reaction. In addition, the conditions and properties of the raw materials and products involved in the liquid phase reaction are different, and thus the requirements for the stirring apparatus and the stirring method are different. For the reaction with relatively harsh reaction conditions, the stirring aims at accelerating the mixing of materials in a mixing system, achieving the aim of uniform mixing through stirring, and simultaneously avoiding incomplete reaction caused by precipitation and crystallization of raw materials. Most of the existing stirring devices are provided with one power shaft to drive one or a pair of stirring paddles for stirring. For systems with low viscosity and easy mixing, the above method meets part of the production requirements. However, in the stirring process, the situation that the fluid and the rotating shaft gradually rotate synchronously and cannot be fully mixed is generated, the liquid level is easy to generate vortex to form parabolic liquid, the edge of the liquid level can rise, and the liquid level at the rotating shaft center is concave, so that the liquid level is uneven. And because the stirring is in the long-time unidirectional stirring, part of the reaction raw materials in the container are in the dead angle of stirring and are not stirred all the time, the complete system reaction is not facilitated, and the crystallization phenomenon is easy to cause. For example, the high temperatures required for the reaction or testing process may be sufficient to allow the vessel itself to function as a heater or to allow the vessel to function in conjunction with an external heating device. For example, the reaction or test needs to avoid the reaction directly contacting with air, and the reaction container needs to be sealed, and usually, gas is generated in the reaction or monitoring process, so that the pressure in the container changes, and the direct sealing of the container can cause potential safety hazards.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. To this end, it is an object of the present invention to provide a tank which provides a convenient means for reaction systems, particularly liquid phase reaction or monitoring systems, to facilitate efficient reaction or monitoring.

A liquid tank according to an embodiment of a first aspect of the utility model includes: a tank body; the stirring device comprises a stirring rod, at least one first stirring blade and at least one second stirring blade, one end of the stirring rod extends into the tank body, the first stirring blade and the second stirring blade are arranged at intervals along the axial direction of the stirring rod, the first stirring blade and the second stirring blade are obliquely arranged relative to a reference plane, the inclination directions of the first stirring blade and the second stirring blade are opposite, and the reference plane is a plane perpendicular to the axial direction of the stirring rod; the filter device comprises a shell, a cover body and a core body, wherein the shell is arranged at the top of the tank body, the top of the shell is open, a first through opening is formed in the bottom of the shell and is communicated with the inside of the tank body, the cover body is detachably arranged at the top of the shell, an accommodating cavity is defined by the cover body and the shell together, a second opening communicated with the accommodating cavity is formed in the cover body, the core body is detachably arranged in the accommodating cavity, and the core body comprises a first supporting layer, an adsorption material layer and a second supporting layer which are sequentially overlapped up and down; and the vent pipeline is used for introducing gas to the lower part in the tank body.

The liquid tank comprises a tank body, a stirring device and a filtering device, wherein the stirring device is used for realizing the full mixing of a system and avoiding crystallization, the filtering device is used for realizing the absorption of toxic and harmful gases generated in the system, and simultaneously the pressure balance between the liquid tank and the external air is kept, so that the reaction or monitoring requirements of the system generating harmful gases or volatile liquid under normal pressure can be met.

According to some embodiments of the utility model, a cleaning liquid pipeline is arranged at the top of the tank body, and a cleaning liquid control valve for controlling the on-off of the cleaning liquid pipeline and the inside of the tank body is arranged on the cleaning liquid pipeline.

According to some embodiments of the utility model, a spray head is arranged at one end of the cleaning liquid pipeline extending into the tank body.

According to some embodiments of the utility model, the tank body is provided with a drainage line at the bottom thereof, and the drainage line is provided with a drainage control valve.

According to some embodiments of the utility model, the liquid tank further comprises: and one end of the overflow pipeline is connected with the upper part of the tank body and is communicated with the inside of the tank body, the other end of the overflow pipeline is connected with the liquid discharge pipeline, and the other end of the overflow pipeline is connected with the downstream of the liquid discharge control valve.

According to some embodiments of the utility model, the liquid tank further comprises:

the upper limit liquid level switch is arranged at the upper part of the tank body and is positioned below one end of the overflow pipeline;

and the lower limit liquid level switch is arranged at the lower part of the tank body.

According to some embodiments of the utility model, the tank body is provided with at least one monitoring device, and the monitoring device is positioned below the lower limit liquid level switch.

According to some embodiments of the utility model, the top of the can is formed with a sample aperture.

According to some embodiments of the utility model, a liquid inlet pipeline is arranged at the upper part of the tank body, is positioned above the upper limit liquid level switch and is communicated with the interior of the tank body; and a liquid inlet control valve is arranged on the liquid inlet pipeline.

According to some embodiments of the utility model, the liquid tank is characterized by further comprising:

one end of the circulating pump is connected with the tank body;

and one end of the constant temperature device is connected with the other end of the circulating pump, and the other end of the constant temperature device is connected with the tank body.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a filter device according to an embodiment of the present invention;

FIG. 2 is a schematic view of a filter assembly according to an embodiment of the present invention in connection with a pipe having a threaded structure;

FIG. 3 is a right side view of a filter assembly according to an embodiment of the present invention in connection with a pipe having a threaded configuration;

FIG. 4 is a schematic structural diagram of a stirring device according to an embodiment of the present invention;

fig. 5 is a schematic view of the structure of the liquid tank of the embodiment of the utility model.

Reference numerals:

100: a filtration device;

200: a stirring device;

1: a housing; 11: a first opening; 2: a cover body; 21: a second opening;

3: an accommodating chamber;

4: a core body; 41: a first support layer; 42: a layer of adsorbent material; 43: a second support layer;

5: a stirring rod; 6: a first stirring blade; 7: a second stirring blade;

8: a tank body;

9: a vent line; 91: a ventilation control valve;

10: a cleaning fluid line; 101 a cleaning fluid control valve; 102: a spray head;

12: an overflow line;

13: an upper limit liquid level switch;

14: a lower limit liquid level switch;

15: a monitoring device;

16: a liquid inlet pipeline; 161: a liquid inlet control valve;

17: a circulation pump;

18: a thermostatic device;

19: a multi-stage supercharging device;

20: a sample application hole; 201: a sample addition pipeline;

22: a drainage line; 221 a drain control valve.

Detailed Description

Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.

A liquid tank according to an embodiment of the present invention is described below with reference to fig. 1 to 5. The tank may be used for liquid phase or heterogeneous reactions or monitoring.

As shown in fig. 1, a liquid tank according to an embodiment of the first aspect of the present invention, a tank body 8; the stirring device 200, as shown in fig. 4, the stirring device 200 includes a stirring rod 5, at least one first stirring blade 6 and at least one second stirring blade 7, one end of the stirring rod 5 extends into the tank 8, the first stirring blade 6 and the second stirring blade 7 are arranged at intervals along the axial direction of the stirring rod 5, the first stirring blade 6 and the second stirring blade 7 are arranged obliquely relative to a reference plane, the inclination directions of the first stirring blade 6 and the second stirring blade 7 are opposite, and the reference plane is a plane perpendicular to the axial direction of the stirring rod 5.

Filter device 100, as shown in fig. 1, filter device 100 includes casing 1, lid 2 and core 4, the top of casing 1 is opened, the bottom of casing 1 has a first opening 11 that link up, first opening 11 communicates with the inside of jar 8, lid 2 detachably establishes at the top of casing 1, lid 2 and casing 1 together define and hold chamber 3, be formed with on the lid 2 with hold the second opening 12 of chamber 3 intercommunication, core 4 detachably establishes in holding chamber 3, core 4 includes first supporting layer 41, adsorbent layer 42 and the second supporting layer 43 of superpose in proper order from top to bottom.

The vent pipeline 9 is used for introducing gas to the lower part in the tank body 8; one end of the vent pipe 9 is connected with the bottom of the tank 8, and a vent control valve 91 for controlling the on-off between the vent pipe 9 and the inside of the tank 8 is arranged on the vent pipe 9.

The liquid tank comprises a tank body 8, a stirring device 200 and a filtering device 100, the stirring device 200 is used for realizing the full mixing of a system and avoiding crystallization, the filtering device 100 is used for realizing the absorption of toxic and harmful gases generated in the system, meanwhile, the pressure balance between the liquid tank and the external air is kept, and the reaction or monitoring requirements of the system generating harmful gases or volatile liquid under normal pressure can be met.

Further, through the breather, let in the air supply at 8 bottoms of jar bodies, can disturb the stirring law in the fluid reservoir, can not separate out the crystal again. Wherein, the introduced gas source is compressed air or compressed nitrogen. Optionally, the venting means is a nitrogen cylinder or air cylinder with a vent tube. But is not limited thereto. Optionally, the pressure of the introduced compressed gas is 10MPa or more.

According to some embodiments of the present invention, a cleaning liquid line 10 is disposed on the top of the tank 8, and a cleaning liquid control valve 101 for controlling the connection and disconnection between the cleaning liquid line 10 and the inside of the tank 8 is disposed on the cleaning liquid line 10.

According to the specific embodiment of the utility model, the cleaning liquid pipeline 10 is arranged at the top of the tank body 8, so that the tank body 8 can be cleaned by the cleaning liquid pipeline 10, the manual contact with the inside of the tank body 8 is avoided, firstly, a reaction system in the tank body 8 can hurt human bodies, further, the caliber of the tank body 8 of the liquid tank is relatively small, and the tank body 8 is not easy to clean manually and is easy to leave dead angles. Further, a spray head 102 is provided at the end of the cleaning liquid line 10 extending into the tank 8. The inside of the tank body 8 is sprayed through the spray head 102, so that the cleaning solution is convenient and quick, and the cleaning solution cannot overflow the outside of the tank body 8. Preferably, the nozzle 102 is a 360-degree automatic rotating nozzle, which can automatically clean all corners inside the tank 8 without leaving dead corners.

According to some embodiments of the present invention, the bottom of the tank 8 is provided with the drainage pipeline 22, the drainage pipeline 22 is provided with the drainage control valve 221, and the reaction liquid in the tank 8 can be drained from the drainage pipeline 22 as required without taking out the liquid from the top opening, so that manpower and time are saved.

According to some embodiments of the present invention, the tank further includes an overflow line 12, one end of the overflow line 12 is connected to an upper portion of the tank 8 and communicates with the inside of the tank 8, the other end of the overflow line 12 is connected to the drain line 22, and the other end of the overflow line 12 is connected downstream of the drain control valve 221. The upper limit water level switch 13 is arranged on the tank body 8 and is used for controlling the height of the liquid level in the tank, when the upper limit liquid level switch 13 fails, the liquid level rises above the upper limit liquid level switch 13, and the liquid is discharged through the overflow pipeline 12, flows into the liquid discharge pipeline 22 through the downstream of the liquid discharge control valve 221 and is discharged from the liquid discharge pipeline 22. The reaction liquid in the tank body 8 is prevented from overflowing from the whole system uncontrollably due to overhigh liquid level, the pollution to the external environment is avoided, and even the explosion and the like are caused due to the outflow of flammable and explosive liquid.

According to other embodiments of the present invention, the liquid tank further comprises an upper limit liquid level switch 13, the upper limit liquid level switch 13 is arranged at the upper part of the tank body 8, and the upper limit liquid level switch 13 is positioned below one end of the overflow pipeline 12; a lower limit liquid level switch 14, wherein the lower limit liquid level switch 14 is arranged at the lower part of the tank body 8. The upper limit of the liquid level in the tank body 8 is controlled by the upper limit liquid level switch 13, and the lower limit of the liquid level in the tank body 8 is controlled by the lower limit liquid level switch 14, so that the liquid in the tank body 8 is ensured to be in a proper range, for example, the volume V of the liquid in the tank body 8 is ensured₁Volume V of solution with tank 8₂The reaction in the tank 8 is proper when the following relationship exists: 1/3V₂≤V₁≤2/3V₂. Meanwhile, the phenomenon that the system cannot monitor or stirring is invalid when the liquid level is over-high or over-low is avoided. Optionally, the upper limit liquid level switch 13 and the lower limit liquid level switch 14 are both sensors, but are not limited thereto.

According to some embodiments of the present invention, at least one monitoring device 15 is disposed on the tank 8, and the monitoring device 15 is located below the lower limit liquid level switch 14, so that the monitoring device 15 can effectively monitor the reaction system when the liquid level meets the lower limit liquid level. Optionally, the monitoring device 15 includes at least one of a pH meter, a conductivity meter, a TOC detector, a TDS meter, a temperature detector, an ammonia nitrogen tester, a residual chlorine on-line tester, and a metal on-line monitor. But is not limited thereto. Optionally. The temperature of the reaction system in the tank 8 is monitored or determined by the monitoring device 15 and is indicative of the operation of the thermostat 18.

According to some embodiments of the present invention, the top of the can 8 is formed with a sample application hole 20. The sample is prevented from spilling or polluting the container mouth by fixed-point sample application through the sample application hole 20. Optionally, the sample application hole 20 can be connected to the sample application pipeline 201, and sample is directly fed through the pipeline 201 to avoid sample contamination. But is not limited thereto.

According to some embodiments of the present invention, a liquid inlet pipe 16 is arranged at the upper part of the tank 8, and the liquid inlet pipe 16 is positioned above the upper limit liquid level switch 13 and is communicated with the inside of the tank 8; a liquid inlet control valve 161 is provided in the liquid inlet line 16. The liquid is conveniently and quickly input into the tank body 8 through the liquid inlet pipeline 16, the control is easy, and the liquid is not easy to spill. Avoid through jar mouthful liquid feeding need with liquid to the height of jar mouth, the liquid process of empting simultaneously spills the defect that overflows outward easily.

Liquid tanks according to other embodiments of the utility model further include: one end of the circulating pump 17 is connected with the tank body 8; and one end of the constant temperature device 18 is connected with the other end of the circulating pump 17, and the other end of the constant temperature device 18 is connected with the tank body 8.

According to the embodiment of the present invention, one end of the circulation pump 17 is connected to the bottom of the tank 8, and the other end of the thermostat 18 is connected to the upper portion of the tank 8. Thus, the liquid in the tank 8 is pumped into the constant temperature device 18 by the circulating pump 17, and then is heated or cooled by the constant temperature device 18 to reach the target temperature, and then is circulated into the upper part of the tank 8 by the circulating pipeline, and optionally, the circulating pipeline is provided with a multi-stage supercharging device 19.

Further, the flow path of the circulation pump 17 having one end connected to the tank 8 is connected to the drain line 22, and the tank 8 is connected to the drain line 22 as necessary, and the drain control valve 221 is opened, whereby the liquid in the tank 8 is controlled to be drained from the bottom of the tank 8. Alternatively, the drain line 22 is controlled to be in communication with or closed from the tank 8 by a three-way valve.

According to some embodiments of the present invention, the thermostatic device 18 includes a cooling mechanism and a heating mechanism. The rapid cooling is realized when the system temperature is higher than the target temperature through the work of the refrigerating mechanism. Optionally. The refrigeration mechanism is a refrigeration compressor. Through the work of the heating mechanism, the rapid temperature rise is realized when the system temperature is lower than the target temperature. Alternatively, the heating mechanism is a high power heater, such as a heater that may be 15Kw-60Kw, but is not limited thereto.

According to the stirring device 200 of the more specific embodiment of the present invention, the stirring rod 5, the first stirring blade 6 and the second stirring blade 7 are integrally formed. But is not limited thereto.

According to the stirring device 200 of the embodiment of the utility model, the at least one first stirring blade 6 and the at least one second stirring blade 7 are included, the first stirring blade 6 and the second stirring blade 7 are obliquely arranged relative to the reference plane, the oblique directions of the first stirring blade 6 and the second stirring blade 7 are opposite, when the first stirring blade 6 and the second stirring blade 7 are used for stirring, a double-layer stirring ring is formed in the container, the stirring directions of the double-layer stirring ring are opposite, and crystal precipitation can be effectively slowed down. Further, the number of the first stirring vanes 6 and the second stirring vanes 7 may be two or more, and the first stirring vanes 6 and the second stirring vanes 7 are provided at intervals. As shown in fig. 4, two first agitating blades 6 and two second agitating blades 7. Thus, two layers of stirring rings are formed in the container, and the directions of the stirring rings are opposite.

Further, the plurality of first stirring blades 6 and the plurality of second stirring blades 7 which are arranged along the axial direction of the stirring rod 5 at intervals can expand the stirring range of the stirring device 200 along the axial direction of the stirring rod 5, and are particularly suitable for large reaction liquid depth in a reaction vessel and poor crystal precipitation retarding effect of a single-layer stirring ring or a double-layer stirring ring, for example.

According to some embodiments of the present invention, the first stirring blade 6 and the second stirring blade 7 are opposed up and down. The stirring ring is used for stirring a reaction system to obtain a reverse and double-layer stirring ring, is beneficial to the reaction system to be mixed more uniformly, and effectively slows down crystallization.

According to further embodiments of the present invention, the absolute value of the angle of inclination of the first stirring blade 6 with respect to the reference plane is equal to the absolute value of the angle of inclination of the second stirring blade 7 with respect to the reference plane. Therefore, the obtained double-layer stirring rings have the same fluctuation size, and the reaction system is stable in the stirring process.

According to some embodiments of the present invention, the first stirring blade 6 is plural, and the plural first stirring blades 6 are arranged along the circumferential direction of the stirring rod 5; similarly, the second agitating blade 7 is plural, and the plural second agitating blades 7 are arranged along the circumferential direction of the agitating bar 5.

According to the specific embodiment of the present invention, the plurality of first stirring blades 6 arranged along the circumferential direction of the stirring rod 5 stir on the same plane relative to the reference plane to form the stirring ring, the stirring strength is enhanced compared with that of a single first stirring blade 6, the resistance of the reaction system in the container can be overcome powerfully, and the stirring system is more stable. The stirring device is suitable for a reaction system which has high viscosity and resistance in a stirring reaction system, is difficult to stir and is difficult to mix uniformly. As such, the same applies to the second agitating blades 7 arranged along the circumferential direction of the agitating shaft 5.

According to other embodiments of the present invention, the plurality of first stirring vanes 6 are all inclined at equal angles with respect to the reference plane; similarly, the plurality of second agitating blades 7 are all inclined at the same angle with respect to the reference plane. The fluctuation of the stirring ring is consistent, and the reaction liquid level in the container is stable in the stirring process.

According to some embodiments of the present invention, the number of the first stirring blades 6 is equal to the number of the second stirring blades 7, so that the stirring ring formed by the first stirring blades 6 is equal to the stirring ring formed by the second stirring blades 7 on the same plane relative to the reference plane, and the stirring force is the same, so that the reaction system is kept stable during the stirring process while the crystallization is effectively slowed down.

According to the specific embodiment of the present invention, by specifically limiting the stirring device 200, the stirring effect of the circulation pump 17 for pumping the system liquid circulation is cooperated to play the roles of high-efficiency stirring and crystallization prevention.

According to some embodiments of the utility model, the stirring rod 5 is a plastic rod. This prevents corrosion of the stirring rod 5 by organic solvents and the like in the reaction system. Alternatively, the first stirring blade 6 and the second stirring blade 7 are plastic stirring blades, and the stirring blades can be prevented from being corroded as well.

According to other embodiments of the present invention, the stirring rod 5 comprises a rod body and a protective layer arranged on the outer surface of the rod body, wherein the rod body is a metal member, and the protective layer is a plastic layer. Therefore, the requirements of the strength and the hardness of the stirring rod 5 can be met, the defect that the metal stirring rod is easily corroded can be overcome, and the metal stirring rod is prevented from rusting. Optionally, the first stirring blade 6 and the second stirring blade 7 include a blade body and a protective layer disposed on the surface of the blade body, the blade body is a metal piece, and the protective layer is a plastic layer. Therefore, the requirements of strength and hardness of the stirring blade can be met, the defect that the metal stirring blade is easy to corrode can be overcome, and the metal stirring blade is prevented from rusting.

According to some embodiments of the utility model, the stirring device 200 further comprises: the mute motor is connected with the stirring rod 5. The mute motor provides power for the stirring device 200, and the stirring rod 5 is driven to rotate through the mute motor, so that the first stirring blade 6 and the second stirring blade 7 are driven to stir. The stirrer provided by the embodiment of the utility model adopts the silent motor, is much more silent than a common motor, and is reduced from 80 decibels to 40 decibels, so that the interference of noise to the environment in the reaction process is reduced. Optionally, the water tank according to the embodiment of the present invention includes a cross beam, the cross beam is located at the outer side of the top of the tank body 8, and the mute motor is fixed on the cross beam.

According to some embodiments of the present invention, the top of the tank 8 is provided with the filter device 100, as shown in fig. 1, the first support layer 41 of the filter device 100 covers the upper portion of the adsorption material layer 42, so as to prevent the adsorption material layer 42 from directly contacting with the atmosphere, prevent dust in the air from contaminating the adsorption material layer 42, and relieve the pressure on the adsorption material layer 42 when the cover 2 is closed. The second support layer 43 prevents the absorbent material layer 42 from leaking from the first opening 11 along the other side of the first opening 11 having the through holes of the housing 1, and prevents the absorbent material layer 42 from contaminating the housing 1.

According to some embodiments of the present invention, the material of the adsorbent material layer 42 is a granular adsorbent material, and the granules have a particle size d, wherein d satisfies: d is more than or equal to 2mm and less than or equal to 10 mm. Thus, the adsorption of the adsorption material layer 42 to harmful gases and organic solvents can be satisfied, and the function of the filter device 100 to communicate the atmosphere with the reaction vessel can be satisfied. Wherein, if the particles of the adsorption material layer 42 are too small and the density is too large, the particles are easy to be blocked and cannot have the effect of communicating with the atmosphere; if the particles of the adsorbent material layer 42 are too large, the contact surface with the harmful gas and the organic solvent is too small, and the adsorption efficiency is lowered.

According to some embodiments of the utility model, the particulate adsorbent material is at least one of activated carbon particles, silica particles and alumina particles. But is not limited thereto. Thus meeting the requirements of the particle size and the adsorption performance of the adsorption material.

According to some embodiments of the present invention, the first support layer 41 and the second support layer 43 are both non-woven fabrics. But is not limited thereto. Thus, the requirements of support and quick replacement are met.

According to some embodiments of the present invention, the cover 2 is provided with a cover extension portion extending in a direction away from the center of the accommodating chamber 3, and the second opening 21 is formed in the cover extension portion.

According to the filtering apparatus 100 of the embodiment of the present invention, the continuous communication between the atmosphere and the reaction vessel when the cover 2 is closed on the housing 1 is realized by the second opening 21 formed on the cover extension.

According to some embodiments of the present invention, the other side of the housing 1 is provided with a housing extension extending in a direction away from the center of the receiving chamber 3, and the first opening 11 is formed on the housing extension.

According to the filtering apparatus 100 of the embodiment of the present invention, an atmospheric passage in which the inner core 4 adsorbs the organic solvent and the harmful gas while continuously communicating the atmosphere and the reaction vessel and keeping the pressure in the reaction vessel the same is formed by the first opening 11 formed on the extension of the housing, the accommodating chamber 3, and the second opening 21 when the cover body 2 is closed on the housing 1.

According to some embodiments of the utility model, the outer surface of the housing extension has external threads. So, conveniently be connected filter equipment 100 and reaction vessel through the casing extension, further fix filter equipment 100 on reaction vessel, easy and simple to handle, there is not the potential safety hazard. As shown in fig. 2 and 3, the pipe can be connected with a pipe with a thread structure through the external thread on the outer surface of the extension part of the shell.

According to some embodiments of the utility model, the cover 2 is screwed to the housing 1. The connection and the disassembly are convenient, and the assembly is firm.

According to some embodiments of the utility model, the cover 2 is a stainless steel cover or a plastic cover. Can prevent that lid 2 from being corroded by organic solvent or harmful gas, long service life when filter equipment 100's filter effect is not good, only need open lid 2 and change core 4, need not change lid 2, simple and convenient.

Further, the housing 1 of the filtering apparatus 100 according to some embodiments of the present invention is a stainless steel housing or a plastic housing. Can prevent that casing 1 from being corroded by organic solvent or harmful gas, long service life when filter equipment 100's filter effect is not good, only need open lid 2 and change core 4, need not dismantle or change casing 1, simple and convenient.

The liquid tank according to the embodiment of the utility model comprises a stirring device 200 which is matched with the tank body 8 of the utility model to control the liquid volume and realize high-efficiency stirring. The filter device 100 communicated with the tank 8 can communicate the tank 8 with the outside atmosphere and prevent the toxic and harmful gas from overflowing to pollute the atmosphere.

In the description of the present invention, it is to be understood that the terms "central," "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience in describing the utility model and for simplicity in description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the utility model.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A liquid tank, comprising:

a tank body;

the stirring device comprises a stirring rod, at least one first stirring blade and at least one second stirring blade, one end of the stirring rod extends into the tank body, the first stirring blade and the second stirring blade are arranged at intervals along the axial direction of the stirring rod, the first stirring blade and the second stirring blade are obliquely arranged relative to a reference plane, the oblique directions of the first stirring blade and the second stirring blade are opposite, and the reference plane is a plane perpendicular to the axial direction of the stirring rod;

the filter device comprises a shell, a cover body and a core body, wherein the shell is arranged at the top of the tank body, the top of the shell is open, a first through opening is formed in the bottom of the shell and is communicated with the inside of the tank body, the cover body is detachably arranged at the top of the shell, an accommodating cavity is defined by the cover body and the shell together, a second opening communicated with the accommodating cavity is formed in the cover body, the core body is detachably arranged in the accommodating cavity, and the core body comprises a first supporting layer, an adsorption material layer and a second supporting layer which are sequentially overlapped up and down;

and the vent pipeline is used for introducing gas to the lower part in the tank body.

2. The liquid tank of claim 1, wherein a cleaning liquid pipeline is arranged at the top of the tank body, and a cleaning liquid control valve for controlling on-off of the cleaning liquid pipeline and the inside of the tank body is arranged on the cleaning liquid pipeline.

3. The liquid tank of claim 2, wherein a spray head is disposed at an end of the cleaning liquid pipe extending into the tank body.

4. The liquid tank of claim 1 wherein a drain line is provided in the bottom of the tank body, said drain line having a drain control valve provided thereon.

5. The liquid tank of claim 4, further comprising:

and one end of the overflow pipeline is connected with the upper part of the tank body and communicated with the inside of the tank body, the other end of the overflow pipeline is connected with the liquid discharge pipeline, and the other end of the overflow pipeline is connected with the downstream of the liquid discharge control valve.

6. The liquid tank of claim 5, further comprising:

the upper limit liquid level switch is arranged at the upper part of the tank body and is positioned below the one end of the overflow pipeline;

and the lower limit liquid level switch is arranged at the lower part of the tank body.

7. The fluid tank of claim 6 wherein said tank body is provided with at least one monitoring device, said monitoring device being located below said lower limit level switch.

8. The liquid tank of claim 1 wherein a top of the tank body is formed with a sample aperture.

9. The liquid tank of claim 6, wherein a liquid inlet pipeline is arranged at the upper part of the tank body, is positioned above the upper limit liquid level switch and is communicated with the interior of the tank body; and a liquid inlet control valve is arranged on the liquid inlet pipeline.

10. The fluid tank of any one of claims 1-9, further comprising:

one end of the circulating pump is connected with the tank body;

and one end of the constant temperature device is connected with the other end of the circulating pump, and the other end of the constant temperature device is connected with the tank body.

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