CN107961826A - A kind of abundant device of thermostatted water - Google Patents

Abstract

The invention discloses a kind of abundant device of thermostatted water, including blender, copper pipe, compressor, four-way reversing valve and water bath with thermostatic control babinet, bottom in the constant water bath box body is provided with blender, copper pipe is disposed with the inner wall of water bath with thermostatic control babinet, one end of copper pipe and the first port of four-way reversing valve connect, the second port of four-way reversing valve is connected with air-cooled condensation table and capillary successively by conduit, and the other end connection of capillary and copper pipe, forms the first circuit.The present invention is by the temperature sensor in constant water bath box body come the temperature in monitoring case body, and temperature value is passed into temperature controller, again by the start and stop of temperature controller control compressor, so as to reach the temperature purpose in control constant water bath box body, with easy to operate, temperature control is accurate, wide temperature range a little, the colliery field such as adsorption isotherm experiment or Coal and Gas Outbursts Prediction suitable for making coal and other field experiment.

Description

A constant temperature water margin device

technical field

The invention relates to a constant temperature water margin device, which belongs to the technical field of experimental equipment.

Background technique

In recent years, security issues have been increasingly concerned by all walks of life. For example, coal and gas outbursts and gas explosions in the coal mining industry will endanger the lives of workers and cause extremely bad social impacts. In order to study and control the occurrence of coal mine accidents, it is necessary to carry out coal isothermal adsorption experiments or coal and gas outburst prediction and identification. , in order to solve safety problems in production, it is sometimes necessary to carry out the freezing method of the coal wall to build a well or use the freezing method when passing through the coal gate, which requires the low-temperature adsorption experiment of coal and the coal and gas outburst experiment to study the effect of this method. Due to the deep burial depth of coal in coal mines and the presence of geothermal heat, it is necessary to conduct coal adsorption experiments and coal and gas outburst experiments to study the coal mining process and conduct coal safety analysis during the coal mining process.

When doing coal isothermal adsorption experiments or coal and gas outburst prediction and other experiments in coal mines and other fields, the coal sample tank is often placed in a constant temperature water tank in a high temperature environment of more than minus 20 degrees or higher than normal temperature to cool the sample tank. Or heat. Yet existing constant temperature water bath box can only heat water usually and can't cool down to normal temperature water.

Contents of the invention

In order to solve the above technical problems, the present invention provides a constant temperature water margin device, which can not only conduct high-temperature adsorption experiments of coal and coal and gas outburst experiments, but also low-temperature adsorption experiments of coal and coal and gas outburst experiments.

Technical solution of the present invention: a constant temperature water margin device, including agitator, copper pipe, solenoid valve, compressor, liquid storage tank, dry filter, air-cooled condensation meter, capillary tube, four-way reversing valve and constant temperature water bath body, the copper tube respectively connects the compressor, liquid storage tank, dry filter, air-cooled condensing meter, capillary tube, and four-way reversing valve in series, and the refrigerant flows in the copper tube; the copper tube in the constant temperature water tank The spiral section plays the role of feeding water to transfer the heat of the refrigerant in the pipe; the part of the copper pipe in the constant temperature water bath box rises or falls spirally along the inner wall of the water box. The four-way reversing valve has four ports. When not reversing, one pair of ports communicates and the other pair of ports closes. After reversing, one pair of ports closes and the other pair of ports opens to divert the flow of refrigerant. effect of change.

Further, a stirrer is installed at the bottom of the constant temperature water bath box, and the water temperature in all parts of the water tank is kept consistent through stirring.

Further, a temperature sensor is also installed in the constant temperature water bath box, the temperature sensor is connected to the temperature controller through a temperature sensor line, a switch is arranged on the control panel of the temperature controller, and the switch is connected to the compressor through a wire. The water temperature required in the constant temperature water bath box is set and controlled by the temperature controller. The temperature controller plays the role of controlling the start and stop of the compressor. When the water temperature reaches the set temperature, the compressor stops automatically. When it is higher or lower than the set temperature When the temperature is set, the compressor starts to run.

Further, the part of the copper pipe in the constant temperature water bath box is in a spiral shape, and is arranged around the inner wall of the constant temperature water bath box.

Further, the constant temperature water bath box is filled with water added with antifreeze, so that the water temperature can drop to more than minus 40 degrees without freezing, and it will not boil when heated to 100 degrees.

Due to the adoption of the above technical solution, the present invention has the advantages that: the present invention monitors the temperature in the box through the temperature sensor in the constant temperature water bath box, and transmits the temperature value to the temperature controller, and then the temperature controller controls the start and stop of the compressor , so as to achieve the purpose of controlling the temperature in the constant temperature water bath box. It has the advantages of convenient operation, precise temperature control, and wide temperature range. It is suitable for coal mine isothermal adsorption experiments or coal and gas outburst predictions and other field experiments.

Description of drawings

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

Explanation of reference signs: 1-stirrer, 2-temperature sensor, 3-copper pipe, 4-solenoid valve, 5-compressor, 6-liquid storage tank, 7-dry filter, 8-air-cooled condensation meter, 9- Capillary, 10-four-way reversing valve, 11-constant temperature water bath box, 12-temperature sensor line, 13-temperature controller, 14-control panel, 15-switch.

Detailed ways

In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Embodiment of the present invention: the schematic diagram of the structure of the constant temperature water margin device is shown in Fig. 8. Capillary 9, four-way reversing valve 10 and constant temperature water bath casing 11, in which the water with antifreeze is filled in the constant temperature water bath casing 11, so that the water temperature can drop to minus 40 degrees without freezing. It doesn't boil at 100 degrees either. The bottom of the constant temperature water bath box 11 is equipped with a stirrer 1, and a copper pipe 3 is arranged on the inner wall of the constant temperature water bath box 11. The part of the copper pipe 3 in the constant temperature water bath box 11 is in a spiral shape, and along the The inner wall of the constant temperature water bath box body 11 is arranged around ascending or descending. The copper tube 3 respectively connects the compressor 5, the liquid storage tank 6, the dry filter 7, the air-cooled condensing meter 8, the capillary tube 9, and the four-way reversing valve 10 in series. The refrigerant flows in the copper tube 3, and the copper tube 3 The spiral section in the constant temperature water tank plays the role of water supply to transfer the heat or cold of the refrigerant in the pipe; the four-way reversing valve 10 has four ports. Backwards, one pair of ports is closed while the other pair of ports is open, which acts to change the flow direction of the refrigerant. That is to say, when the water temperature in the constant temperature water bath box 11 needs to rise, the helical section of the copper tube 3 in the constant temperature water bath box 11 transfers the heat of the refrigerant in the copper tube to the water, and the copper tube 3 is in the constant temperature water bath box. The spiral section in the body 11 is equivalent to a condenser for the refrigerant, so that the gaseous refrigerant condenses into a liquid refrigerant, thereby increasing the water temperature; The role of 10 is to change the flow direction of the refrigerant, so that the spiral section of the copper tube 3 in the constant temperature water bath box 11 becomes an evaporator for the refrigerant, and the spiral section of the copper tube 3 in the constant temperature water bath box 11 turns the water The heat of the liquid is transferred to the refrigerant in the copper tube 3, and the liquid refrigerator evaporates into a positive gas of the refrigerant, which lowers the water temperature.

Working principle of the present invention:

The four-way reversing valve 10 of the present invention plays the role of reversing the refrigerant. When it is necessary to cool down the water with antifreeze in the constant temperature water bath box 11, the refrigerant is from: liquid storage tank 6→compressor 5 → Solenoid valve 4 → Four-way reversing valve 10 → Air-cooled condensing meter 8 → Capillary tube 9 → Copper tube 3 in the spiral part in the constant temperature water bath box 11 → Four-way reversing valve 10 → Dry filter 7 → Liquid storage Tank 6, in the above process, the constant temperature water bath box 11 is used as an evaporator, and the liquid refrigerant in the spiral part of the copper tube 3 in the box body absorbs the heat of the water in the constant temperature water bath box 11 through the partition heat transfer, so that the water temperature is reduced. The liquid refrigerant changes from liquid to steam, and the air-cooled condensing table 8 acts as a condenser to lower the temperature and pressure of the high-temperature and high-pressure gaseous refrigerant and release heat to be taken away with the wind; when it is necessary to add antifreeze to the water bath box 11 When heating up, through the reversing action of the four-way reversing valve 10, the refrigerant flows from: liquid storage tank 6→compressor 5→solenoid valve 4→four-way reversing valve 10→copper tube 3 in the constant temperature water bath box 11 In the spiral part → capillary tube 9 → air-cooled condensing meter 8 → four-way reversing valve 10 → dry filter 7 → liquid storage tank 6, the spiral part of the copper tube 3 in the constant temperature water bath box 11 in the above process is used as condensation The high-temperature and high-pressure refrigerant steam in the spiral part of the copper tube 3 in the constant temperature water bath box 11 transfers heat to the water in the constant temperature water bath box 11 through the partition heat transfer, and the water in the constant temperature water bath box 11 is obtained due to The temperature rises due to the heat, and the high-temperature and high-pressure refrigerant changes from gaseous steam to low-temperature and low-pressure liquid refrigerant. At this time, the air-cooled condensing table 8 acts as an evaporator, and the air-cooled condensing table 8 transfers the heat in the air flow to the refrigerant. Liquid refrigerant evaporates into gaseous refrigerant.

The present invention monitors the temperature in the box through the temperature sensor 2 in the constant temperature water bath box 11, and transmits the temperature value to the temperature controller 13, and then the temperature controller 13 controls the start and stop of the compressor, so as to achieve the control of the constant temperature water bath box The temperature purpose in the body 11 has the advantages of convenient operation, precise temperature control, and wide temperature range, and is suitable for coal isothermal adsorption experiments or coal and gas outburst predictions and other experiments in coal mines and other fields.

Claims (4)

1. a kind of abundant device of thermostatted water, including it is blender (1), copper pipe (3), solenoid valve (4), compressor (5), fluid reservoir (6), dry Dry filter (7), air-cooled condensation table (8), capillary (9), four-way reversing valve (10) and water bath with thermostatic control babinet (11), its feature It is：The copper pipe (3) is respectively compressor (5), fluid reservoir (6), device for drying and filtering (7), air-cooled condensation table (8), capillary Pipe (9), four-way reversing valve (10) are concatenated, refrigerant flowing in copper pipe (3)；Copper pipe (3) is in water bath with thermostatic control babinet (11) Inner wall section along water tank spiral inner wall around rise or decline.

2. the abundant device of thermostatted water according to claim 1, it is characterised in that：Also pacify in the water bath with thermostatic control babinet (11) Equipped with blender (1) and temperature sensor (2), temperature sensor (2) passes through temperature sensor line (12) and temperature controller (13) connect, switch (15) is provided with the control panel (14) of temperature controller (13), switch (15) passes through conducting wire and pressure Contracting machine (5) connects.

3. the abundant device of thermostatted water according to claim 1, it is characterised in that：The copper pipe (3) is in water bath with thermostatic control babinet (11) inner part is spiral-shaped, and is arranged along the inner wall surrounding of water bath with thermostatic control babinet (11).

4. the abundant device of thermostatted water according to claim 1, it is characterised in that：Contain and add in the water bath with thermostatic control babinet (11) There is the water of anti-icing fluid.