CN210835739U - Liquid micro-flow control equipment - Google Patents
Liquid micro-flow control equipment Download PDFInfo
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- CN210835739U CN210835739U CN201921444288.6U CN201921444288U CN210835739U CN 210835739 U CN210835739 U CN 210835739U CN 201921444288 U CN201921444288 U CN 201921444288U CN 210835739 U CN210835739 U CN 210835739U
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Abstract
The utility model discloses a liquid micrometeor controlgear, include: the pressure regulating structure and the temperature regulating structure are arranged on the water tank, and the measuring structure and the flow limiting structure are arranged in the temperature regulating structure; the utility model relates to a precision machining technical field, this liquid microflow controlgear, it is in setting for the temperature range always to ensure water through the temperature regulation structure, ensure water through the temperature regulation structure and be in setting for the pressure within range always, avoided the temperature velocity of flow through heat preservation and insulation cover, through the temperature and the pressure of water level detector and temperature sensor real time monitoring water, accomplish the effect of guaranteeing temperature and pressure in real time.
Description
Technical Field
The utility model relates to a precision machining technical field specifically is a liquid micro-flow control equipment.
Background
In the fields of new materials, pharmacy and the like, liquid media participating in reaction or proportioning are required to be precisely metered and stably output at a tiny flow rate, and free jet flow under normal pressure is presented.
The constant-current pulse-free medium under normal pressure needs to be uniformly heated to a proper proportioning temperature.
When the process flow is less than 5L/h, in many previous control modes, the medium is mostly in a droplet shape at an outlet, the diameter of the droplet is more than 2mm, and the droplet-shaped medium is in a discontinuous (cut-off) state visually; if a throttling element similar to a nozzle is added at the outlet end, the medium passage is easily blocked by fine channels, and the medium passage is often also in the form of high-speed jet flow of small-diameter liquid drops (less than or equal to 1 mm). Under the application working conditions of micro-flow, the flow fluctuation of liquid drops is large, stable flow output cannot be achieved, uncertainty effect is often brought to process flow control, and the requirements of production processes cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a liquid micro-flow control equipment has solved the problem that current water changes because the density that temperature or pressure change produced.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a liquid micro-flow control device comprising: the pressure regulating structure and the temperature regulating structure are arranged on the water tank, and the measuring structure and the flow limiting structure are arranged in the temperature regulating structure;
the pressure adjusting structure mainly comprises: the air compressor is connected with the air inlet pipe;
the pressure sensor is arranged in the water tank, the air compressor is arranged on the water tank, the inflation tube is inserted on the water tank, and one end of the inflation tube is connected to the air compressor.
Preferably, the temperature adjustment structure mainly includes: the device comprises a heat insulation box, a cooling pipe, an evaporator, a heating pipe and a temperature exchange pipe;
the cooling pipe is installed in the heat insulation box, the evaporator is installed on the outer side of the heat insulation box, and the heating pipe is installed in the heat insulation box.
Preferably, the flow restriction structure mainly includes: the flow-limiting electric valve and a plurality of filter screens with the same structure;
the filter screens are uniformly arranged in the heat exchange pipe, and the current-limiting electric valve is arranged on the heat exchange pipe.
Preferably, the measurement structure mainly comprises: the electromagnetic flow meter, the switch electric valve, the flow discharging pipe and a pair of drainage pipes with the same structure;
the pair of drainage tubes are respectively connected to the electromagnetic flow meter and the switch electric valve as well as the electromagnetic flow meter and the current-limiting electric valve, the flow-discharging tube is inserted in the heat-insulating box, and the heat-insulating box is arranged on the switch electric valve.
Preferably, the inner side of the heat preservation box is provided with a heat preservation layer, and the outer side of the flow discharge pipe is provided with a heat preservation sleeve.
Preferably, a water level detector is arranged in the water tank, the water level detector is installed on the inner wall of the water tank, and a temperature sensor is arranged in the heat insulation box.
Advantageous effects
The utility model provides a liquid micro-flow control equipment. The method has the following beneficial effects: this liquid micro-flow controlgear, it is in setting for the temperature range always to ensure water through temperature regulation structure, and it is in setting for the pressure range always to ensure water through temperature regulation structure, has avoided the temperature velocity of flow through heat preservation and insulation cover, through the temperature and the pressure of water level detector and temperature sensor real-time supervision water, accomplishes the effect of guaranteeing temperature and pressure in real time.
Drawings
Fig. 1 is a front cross-sectional view of a liquid micro-flow control device according to the present invention.
Fig. 2 is a schematic diagram of a temperature adjustment structure of a liquid micro-flow control device according to the present invention.
Fig. 3 is a schematic view of a measurement structure of a liquid micro-flow control device according to the present invention.
In the figure: 1-a water tank; 2-a control box; 3-a pressure sensor; 4-an air compressor; 5-an inflation tube; 6-insulation box; 7-a cooling pipe; 8-an evaporator; 9-heating a tube; 10-a temperature change pipe; 11-a flow-limiting electrically operated valve; 12-a filter screen; 13-an electromagnetic flow meter; 14-opening and closing the electrically operated valve; 15-a discharge pipe; 16-a drainage tube; 17-an insulating layer; 18-insulating sleeve; 19-a water level detector; 20-temperature sensor.
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 work belong to the protection scope of the present invention.
The following are the types of some of the electrical components mentioned in this document;
an electromagnetic flow meter: reference is made to the LDG type intelligent electromagnetic flow meter manufactured by the beijing hongboweil company;
all the electrical components in the present application are connected with the power supply adapted to the electrical components through a wire, and an appropriate controller and an appropriate encoder should be selected according to actual conditions to meet control requirements, and specific connection and control sequences should be obtained.
Example (b): 1-3, a liquid micro-flow control device comprising: the pressure regulating device comprises a water tank 1 and a control box 2, wherein the control box 2 is installed on the water tank 1, a pressure regulating structure and a temperature regulating structure are installed on the water tank 1, and a measuring structure and a flow limiting structure are installed in the temperature regulating structure; the pressure adjusting structure mainly comprises: a pressure sensor 3, an air compressor 4 and an inflation tube 5; the pressure sensor 3 is arranged in the water tank 1, the air compressor 4 is arranged on the water tank 1, the inflation tube 5 is inserted in the water tank 1, and one end of the inflation tube 5 is connected to the air compressor 4; the temperature regulation structure mainly comprises: a heat insulation box 6, a cooling pipe 7, an evaporator 8, a heating pipe 9 and a temperature changing pipe 10; the heat exchange tube 10 is inserted into the side wall of the heat insulation box 6, one end of the heat exchange tube 10 is inserted into the water tank 1, the other end of the heat exchange tube 10 is connected to the current limiting structure, the cooling tube 7 is installed in the heat insulation box 6, the evaporator 8 is installed outside the heat insulation box 6, the heating tube 9 is installed in the heat insulation box 6, and the current limiting structure mainly comprises: a flow-limiting electric valve 11 and a plurality of filter screens 12 with the same structure; the plurality of filter screens 12 are uniformly arranged in the heat exchange tube 10, and the flow-limiting electric valve 11 is arranged on the heat exchange tube 10; the measurement structure mainly comprises: the electromagnetic flow meter 13, the switch electric valve 14, the flow discharge pipe 15 and a pair of drainage pipes 16 with the same structure; the pair of drainage tubes 16 are respectively connected to the electromagnetic flow meter 13 and the switch electric valve 14, and the electromagnetic flow meter 13 and the current-limiting electric valve 11, the flow-discharging tube 15 is inserted into the heat-insulating box 6, the heat-insulating box 6 is installed on the switch electric valve 14, the water level detector 19 is arranged in the water tank 1, the water level detector 19 is installed on the inner wall of the water tank 1, and the temperature sensor 20 is arranged in the heat-insulating box 6.
From the above, it follows: the pressure sensor 3 detects the pressure intensity in the water tank 1, the numerical value of the pressure intensity is transmitted to the control box 2, the water level detector 19 transmits the height of the water level in the water tank 1 to the control box 2, the control box 2 adjusts the power of the air compressor 4 according to the height of the water level, so as to adjust the pressure intensity in the water tank 1, the water in the water tank 1 flows out through the heat exchange pipe 10, the temperature in the heat insulation box 6 is detected by the temperature sensor 20, the temperature sensor 20 transmits the temperature to the control box 2, the control box 2 controls the cooling pipe 7 to cool according to the difference of the temperature and then heats the heating pipe 9, so that the water in the heat exchange pipe 10 reaches a certain temperature, the temperature of the water is ensured to be the set temperature, thereby being convenient for the electromagnetic flowmeter 13 to measure the volume, the supercritical water has compressibility, the density of the supercritical water can be, the density of water is only 0.326g/cm3, typical supercritical water oxidation is carried out when the density is close to 0.1g/cm3, because of the characteristics of water, certain requirements on the pressure and temperature around the water need to be monitored at any time, the volume of the water at the set temperature and within the pressure range is measured through an electromagnetic flowmeter 13, the accuracy of the water quantity is ensured, and the flow rate of the water is controlled by controlling a switch electric valve 14;
preferably, the temperature adjustment structure mainly includes: a heat insulation box 6, a cooling pipe 7, an evaporator 8, a heating pipe 9 and a temperature changing pipe 10;
the heat exchange tube 10 is inserted into the side wall of the heat insulation box 6, one end of the heat exchange tube 10 is inserted into the water tank 1, the other end of the heat exchange tube 10 is connected to the current limiting structure, the cooling tube 7 is installed in the heat insulation box 6, the evaporator 8 is installed outside the heat insulation box 6, the heating tube 9 is installed in the heat insulation box 6, and the optimization benefit is that: the temperature around the water is always within the set range while ensuring that the volume of water is detected.
Preferably, the flow-limiting structure mainly includes: a flow-limiting electric valve 11 and a plurality of filter screens 12 with the same structure;
a plurality of filter screen 12 evenly installed in heat exchange tube 10, current-limiting electric valve 11 installs on heat exchange tube 10, optimizes the benefit and is: the flow rate of water is limited, and the water is filtered once, so that the error caused by impurities in the water is avoided.
As a preferred solution, further, the measurement structure mainly includes: the electromagnetic flow meter 13, the switch electric valve 14, the flow discharge pipe 15 and a pair of drainage pipes 16 with the same structure;
the pair of drainage tubes 16 are respectively connected to the electromagnetic flow meter 13 and the switch electric valve 14, and the electromagnetic flow meter 13 and the current-limiting electric valve 11, the flow-discharging tube 15 is inserted into the heat-preserving box 6, and the heat-preserving box 6 is installed on the switch electric valve 14, so that the optimization benefits are as follows: the flow rate of water is controlled to ensure the volume of water.
As a preferable scheme, further, an insulating layer 17 is arranged on the inner side of the heat preservation box 6, and an insulating sleeve 18 is arranged on the outer side of the flow discharging pipe 15, so that the optimization benefits are as follows: wall temperature flow rate.
Preferably, a water level detector 19 is arranged in the water tank 1, the water level detector 19 is mounted on the inner wall of the water tank 1, and a temperature sensor 20 is arranged in the heat preservation box 6, so that the optimization benefits are as follows: the water environment is monitored in real time, and errors caused by temperature or pressure on the wall surface occur.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A liquid micro-flow control device comprising: the device comprises a water tank (1) and a control box (2), and is characterized in that the control box (2) is installed on the water tank (1), a pressure regulating structure and a temperature regulating structure are installed on the water tank (1), and a measuring structure and a flow limiting structure are installed in the temperature regulating structure;
the pressure adjusting structure mainly comprises: the air compressor comprises a pressure sensor (3), an air compressor (4) and an inflation pipe (5);
the pressure sensor (3) is installed in the water tank (1), the air compressor (4) is installed on the water tank (1), the inflation tube (5) is inserted in the water tank (1), and one end of the inflation tube (5) is connected to the air compressor (4).
2. The microfluidic control device of claim 1, wherein the temperature regulating structure essentially comprises: the device comprises a heat preservation box (6), a cooling pipe (7), an evaporator (8), a heating pipe (9) and a temperature changing pipe (10);
the temperature-changing pipe (10) is inserted into the side wall of the heat-preserving box (6), one end of the temperature-changing pipe (10) is inserted into the water tank (1), the other end of the temperature-changing pipe (10) is connected to the flow-limiting structure, the cooling pipe (7) is installed in the heat-preserving box (6), the evaporator (8) is installed on the outer side of the heat-preserving box (6), and the heating pipe (9) is installed in the heat-preserving box (6).
3. The liquid micro-flow control device as claimed in claim 1 or 2, wherein the flow restricting structure mainly comprises: a flow-limiting electric valve (11) and a plurality of filter screens (12) with the same structure;
the filter screens (12) are uniformly arranged in the heat exchange tube (10), and the current-limiting electric valve (11) is arranged on the heat exchange tube (10).
4. The microfluidic control device of claim 2, wherein the measurement structure essentially comprises: the device comprises an electromagnetic flowmeter (13), an electric valve (14) for opening and closing, a flow discharging pipe (15) and a pair of drainage pipes (16) with the same structure;
the pair of drainage tubes (16) are respectively connected to the electromagnetic flow meter (13) and the switch electric valve (14) as well as the electromagnetic flow meter (13) and the current-limiting electric valve (11), the flow-discharging tube (15) is inserted into the heat-preserving box (6), and the heat-preserving box (6) is installed on the switch electric valve (14).
5. The micro-flow control device of claim 4, wherein the heat insulation box (6) is provided with a heat insulation layer (17) on the inner side, and the heat insulation sleeve (18) is provided on the outer side of the flow discharge pipe (15).
6. The micro-flow control device of liquid as claimed in claim 2, wherein a water level detector (19) is arranged in the water tank (1), the water level detector (19) is mounted on the inner wall of the water tank (1), and a temperature sensor (20) is arranged in the heat preservation box (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921444288.6U CN210835739U (en) | 2019-09-02 | 2019-09-02 | Liquid micro-flow control equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921444288.6U CN210835739U (en) | 2019-09-02 | 2019-09-02 | Liquid micro-flow control equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210835739U true CN210835739U (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921444288.6U Active CN210835739U (en) | 2019-09-02 | 2019-09-02 | Liquid micro-flow control equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210835739U (en) |
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2019
- 2019-09-02 CN CN201921444288.6U patent/CN210835739U/en active Active
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