CN206174987U - Tail end flow adjusting device and mine cooling system - Google Patents

Abstract

The utility model discloses a terminal flow regulating device and a mine cooling system. The terminal flow regulating device includes a processing controller, a flow sensor, a temperature sensor I, a temperature sensor II and an electric regulating valve; The water inlet pipe and detect the water flow in the water inlet pipe in real time. The temperature sensor I is installed in the water inlet pipe and detects the water temperature in the water inlet pipe in real time. The temperature sensor II is installed in the air cooler The outlet side pipeline of the water outlet side pipeline and detect the water temperature in the water outlet side pipeline in real time. The electric regulating valve is set in the water inlet side pipeline and adjusts the water flow into the air cooler by controlling the valve opening; the mine cooling system includes a ground refrigeration unit, Cooling tower, uphole circulating water pump, high-pressure water decompression device, downhole circulating water pump, air cooler and terminal flow regulating device; the utility model can realize coordination and matching between terminal heat load and cold water flow.

Description

Terminal flow regulating device and mine cooling system

technical field

The utility model relates to the field of mine cooling, in particular to a terminal flow regulating device used in a mine cooling system and a mine cooling system using the device.

Background technique

With the increase of mine mining depth, more and more mine cooling systems are used. The cold water is transported to the end of the air cooler through the insulation pipe to cool down. At present, the flow of cold water to the air cooler is generally constant. It often seriously exceeds the actual demand at the end, resulting in a waste of cooling capacity; in order to achieve the coordination and matching between the end heat load and the cold water flow, it is necessary to control the end flow through automatic control, which means that the end environment temperature is controlled Within a reasonable range, it will not cause the flow of cold water to be too large or too small.

Utility model content

In view of this, the purpose of this utility model is to provide a terminal flow regulating device and a mine cooling system using the device, which can realize the coordination and matching between the terminal heat load and the cold water flow.

The terminal flow regulating device of the utility model includes a processing controller, a flow sensor, a temperature sensor I, a temperature sensor II and an electric regulating valve; The water flow in the pipeline, the temperature sensor I is set in the water inlet pipe and detects the water temperature in the water inlet pipe in real time, and the temperature sensor II is set in the water outlet pipe connected to the air cooler and detects the water temperature in the water outlet pipe in real time. The electric control valve is set in the water inlet pipe and adjusts the water flow into the air cooler by controlling the opening of the valve; the signal output end of the flow sensor is connected with the first signal input end of the processing controller , the signal output end of the temperature sensor I is connected to the second signal input end of the processing controller, the signal output end of the temperature sensor II is connected to the third signal input end of the processing controller, and the signal of the electric regulating valve The input terminal is connected with the signal output terminal of the processing controller.

Further, the processing controller is a single-chip microcomputer.

Further, the temperature sensor I includes a temperature-sensing probe I and a fixed sleeve I arranged outside the temperature-sensing probe I, and the fixed sleeve I is fixed on the water-inlet pipe so that the temperature-sensing probe I extends into the water-inlet side inside the pipe.

Further, the temperature sensor II includes a temperature-sensing probe II and a fixed sleeve II arranged outside the temperature-sensing probe II, and the fixed sleeve II is fixed on the outlet-side pipeline so that the temperature-sensing probe II extends into the outlet-side pipeline .

Further, the device also includes a communication module, and the processing controller communicates with the centralized control center through the communication module.

The mine cooling system of the utility model includes a ground refrigeration unit, a cooling tower, an above-ground circulating water pump, a high-pressure water decompression device, an underground circulating water pump, an air cooler, and a terminal flow regulating device; the cooling tower is connected with the ground refrigeration unit, and the The ground refrigeration unit is connected to the circulating water pump on the well, and the circulating water pump on the well transports the high-pressure cold water to the high-pressure water decompression device, and the decompressed cold water is transported to the cooling area through the low-pressure insulation pipeline and supplied to the air cooler through the terminal flow adjustment device. The downhole circulating water pump transports the hot water cooled by the working face back to the high pressure water pressure reducing device through the return pipe; the terminal flow regulating device includes a processing controller, a flow sensor, a temperature sensor I, a temperature sensor II and an electric regulator Valve; the flow sensor is set on the water inlet pipe connected to the air cooler and detects the water flow in the water inlet pipe in real time, and the temperature sensor I is set in the water inlet pipe and detects the water temperature in the water inlet pipe in real time , the temperature sensor II is set on the water outlet pipe connected to the air cooler and detects the water temperature in the water outlet pipe in real time. The water flow rate; the signal output end of the flow sensor is connected to the first signal input end of the processing controller, the signal output end of the temperature sensor I is connected to the second signal input end of the processing controller, and the temperature sensor II is connected to the second signal input end of the processing controller. The signal output end of the electric regulating valve is connected with the third signal input end of the processing controller, and the signal input end of the electric regulating valve is connected with the signal output end of the processing controller.

Further, the system also includes a centralized control center, each of the terminal flow regulating devices is equipped with a communication module, and the processing controller communicates with the centralized control center through the communication module.

Further, the system also includes an overpressure relief unit, and the high-pressure water depressurization device is connected with the downhole circulating water pump through the overpressure relief unit.

The beneficial effects of the utility model:

In the terminal flow adjustment device of the utility model, the flow sensor transmits the collected flow signal to the processing controller, and at the same time, the temperature sensor Ⅰ and temperature sensor Ⅱ respectively transmit the collected temperature signal to the processing controller, and the processing controller calculates the flow rate according to the temperature difference. The actual heat load at the outlet end, if the temperature difference is large, it will send a signal to the electric control valve to increase the valve opening to increase the flow of cold water; if the temperature difference is small, it will send a signal to the electric control valve to reduce the valve opening degree The flow of cold water entering the air cooler; it can realize the coordination and actual matching between the terminal heat load and the flow of cold water.

The mine cooling system of the utility model can regulate the cooling capacity of the ground refrigeration unit according to the actual cooling load demand of the underground terminal, optimize the operation of the refrigeration system, and reduce energy consumption to the greatest extent; According to the total load of each working surface, the cold water is adjusted to match the cooling capacity demand of the working surface, which not only realizes the energy saving of the refrigeration system, but also reduces the operating cost of the circulating water pump of the system.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is the structural representation of the terminal flow regulating device of the present utility model (the arrow in the figure is the water flow direction);

Fig. 2 is a structural block diagram of the mine cooling system of the present invention.

detailed description

As shown in Figure 1 and Figure 2: the terminal flow regulating device of this embodiment includes a processing controller 1, a flow sensor 2, a temperature sensor I3, a temperature sensor II4 and an electric regulating valve 5; connected to the water inlet pipe 6 and detect the water flow in the water inlet pipe 6 in real time, the temperature sensor I3 is set in the water inlet pipe 6 and detects the water temperature in the water inlet pipe 6 in real time, the temperature sensor II4 It is installed in the water outlet pipe 7 connected with the air cooler and detects the water temperature in the water outlet pipe 7 in real time. The electric regulating valve 5 is arranged in the water inlet pipe 6 and adjusts the water entering the air cooler by controlling the valve opening. flow; the signal output end of the flow sensor 2 is connected to the first signal input end of the processing controller 1, the signal output end of the temperature sensor I3 is connected to the second signal input end of the processing controller 1, and the temperature sensor The signal output end of II 4 is connected with the third signal input end of the processing controller 1, and the signal input end of the electric control valve 5 is connected with the signal output end of the processing controller 1; the processing controller 1 is equipped with data processing and signal control The device is preferably a single-chip microcomputer; the flow sensor 2 is mainly composed of a copper valve body, a water flow rotor assembly, a steady flow assembly and a Hall element. When water flows through the rotor assembly, the magnetic rotor rotates, and the speed changes linearly with the flow rate. The corresponding pulse signal output by the Er element is fed back to the processing controller 1; the temperature sensor I3 has the same structure as the temperature sensor II4, and the temperature sensor I3 includes a temperature-sensing probe I and a fixed sleeve I arranged outside the temperature-sensing probe I, The fixed sleeve I is fixed on the water inlet pipe 6 so that the temperature sensing probe I extends into the water inlet side pipe 6; the temperature sensor II4 includes a temperature sensing probe II and a fixing sleeve arranged outside the temperature sensing probe II Pipe II, the fixed sleeve II is fixed on the water outlet pipe 7 and makes the temperature sensing probe II extend into the water outlet pipe 7; in addition, the device also includes a communication module that realizes wired communication or wireless communication, and the processing The controller 1 communicates with the centralized control center through the communication module; the flow sensor 2 transmits the collected flow signal to the processing controller 1, and at the same time, the temperature sensor Ⅰ3 and temperature sensor Ⅱ4 respectively transmit the collected temperature signal to the processing controller 1, The processing controller 1 calculates the actual heat load at the end according to the temperature difference. If the temperature difference is large, it sends a signal to the electric control valve 5 to increase the valve opening to increase the flow of cold water; if the temperature difference is small, it sends a signal to the electric control valve 5. Send a signal to reduce the opening of the valve to reduce the flow of cold water entering the air cooler; it can realize the coordination and factual matching between the terminal heat load and the flow of cold water; the centralized control center and the ground control center conduct real-time data exchange, according to The actual cooling load demand, adjust the cooling capacity of the ground refrigeration station, optimize the operation of the refrigeration system, and minimize energy consumption.

This embodiment also discloses a mine cooling system using the above-mentioned terminal flow regulating device, including a ground refrigeration unit, a cooling tower, an above-ground circulating water pump, a high-pressure water pressure reducing device, an underground circulating water pump, an air cooler and a terminal flow regulating device; The cooling tower is connected to the ground refrigerating unit, and the ground refrigerating unit is connected to the circulating water pump on the well, and the circulating water pump on the well transports the high-pressure cold water to the high-pressure water decompression device, and the decompressed cold water is transported to the cooling area through the low-pressure heat preservation pipeline And it is supplied to the air cooler through the terminal flow regulating device, and the downhole circulating water pump transports the hot water cooled by the working face back to the high pressure water decompression device through the return water pipe; the terminal flow regulating device includes a processing controller 1, a flow rate Sensor 2, temperature sensor I3, temperature sensor II4 and electric regulating valve 5; the flow sensor 2 is set on the water inlet pipe 6 connected to the air cooler and detects the water flow in the water inlet pipe 6 in real time, the temperature sensor Ⅰ3 is set in the water inlet pipe 6 and detects the water temperature in the water inlet pipe 6 in real time, and the temperature sensor II4 is set in the water outlet pipe 7 connected with the air cooler and detects the water temperature in the water outlet pipe 7 in real time. The regulating valve 5 is located at the water inlet pipe 6 and regulates the water flow entering the air cooler by controlling the valve opening; the signal output end of the flow sensor 2 is connected with the first signal input end of the processing controller 1, so The signal output end of the temperature sensor I3 is connected to the second signal input end of the processing controller 1, the signal output end of the temperature sensor II4 is connected to the third signal input end of the processing controller 1, and the electric control valve 5 The signal input end is connected to the signal output end of the processing controller 1; the system also includes a centralized control center, each of the terminal flow regulating devices is provided with a communication module, and the processing controller 1 communicates with the centralized control center through the communication module connection; the system also includes an overpressure relief unit, and the high-pressure water depressurization device is connected with the downhole circulating water pump through the overpressure relief unit; the system can regulate the refrigeration of the ground refrigeration unit according to the actual cooling load demand at the end of the well. It optimizes the operation of the refrigeration system and minimizes energy consumption; at the same time, it can achieve a suitable body feeling problem at the end and improve the environmental comfort of the working face; according to the total load of each working face, adjust the cold water and working face The matching of cooling capacity requirements not only realizes the energy saving of the refrigeration system, but also reduces the operating cost of the system circulating water pump.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the purpose and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.

Claims (8)

1. A terminal flow regulating device, characterized in that: it includes a processing controller, a flow sensor, a temperature sensor I, a temperature sensor II and an electric regulating valve; To detect the water flow in the water inlet pipe, the temperature sensor I is installed in the water inlet pipe and detects the water temperature in the water inlet pipe in real time, and the temperature sensor II is installed in the water outlet pipe connected to the air cooler and detects the water temperature in real time. The water temperature in the water outlet pipe, the electric control valve is located in the water inlet pipe and adjusts the water flow into the air cooler by controlling the size of the valve opening; the signal output end of the flow sensor is connected with the first The signal input end is connected, the signal output end of the temperature sensor I is connected with the second signal input end of the processing controller, the signal output end of the temperature sensor II is connected with the third signal input end of the processing controller, and the electric motor The signal input end of the regulating valve is connected with the signal output end of the processing controller. 2. The terminal flow regulating device according to claim 1, wherein the processing controller is a single-chip microcomputer. 3. The terminal flow regulating device according to claim 1, characterized in that: the temperature sensor I includes a temperature-sensing probe I and a fixed sleeve I arranged outside the temperature-sensing probe I, and the fixed sleeve I is fixed on On the water inlet pipe and make the temperature probe I extend into the water inlet pipe. 4. The terminal flow regulating device according to claim 1, characterized in that: the temperature sensor II includes a temperature-sensing probe II and a fixed sleeve II arranged outside the temperature-sensing probe II, and the fixed sleeve II is fixed on On the water outlet pipe and make the temperature sensor II protrude into the water outlet pipe. 5. The terminal flow regulating device according to claim 1, characterized in that the device further comprises a communication module, and the processing controller communicates with the centralized control center through the communication module. 6. A mine cooling system, characterized in that: it includes a ground refrigeration unit, a cooling tower, a circulating water pump on the well, a high-pressure water decompression device, an underground circulating water pump, an air cooler and a terminal flow regulating device; the cooling tower and the ground refrigeration unit The above-ground refrigerating unit is connected to the circulating water pump on the well, and the circulating water pump on the well transports the high-pressure cold water to the high-pressure water decompression device, and the cold water after depressurization is transported to the cooling area through the low-pressure insulation pipeline and supplied by the terminal flow adjustment device The air cooler is used, and the downhole circulating water pump sends the hot water cooled by the working face back to the high pressure water pressure reducing device through the return pipe; the terminal flow regulating device includes a processing controller, a flow sensor, a temperature sensor I, a temperature sensor II and an electric regulating valve; the flow sensor is set on the water inlet pipe connected to the air cooler and detects the water flow in the water inlet pipe in real time, and the temperature sensor I is set on the water inlet pipe and detects the water flow on the water inlet side in real time The water temperature in the pipeline, the temperature sensor II is set in the water outlet pipeline connected to the air cooler and detects the water temperature in the water outlet pipeline in real time, the electric control valve is installed in the water inlet pipeline and controls the valve opening Adjust the water flow rate entering the air cooler; the signal output end of the flow sensor is connected to the first signal input end of the processing controller, and the signal output end of the temperature sensor I is connected to the second signal input end of the processing controller, so The signal output end of the temperature sensor II is connected to the third signal input end of the processing controller, and the signal input end of the electric regulating valve is connected to the signal output end of the processing controller. 7. The mine cooling system according to claim 6, characterized in that: the system also includes a centralized control center, each of the terminal flow regulating devices is provided with a communication module, and the processing controller communicates with the centralized control center through the communication module Central communication connection. 8. The mine cooling system according to claim 6, characterized in that the system further comprises an overpressure relief unit, and the high-pressure water depressurization device is connected with the underground circulating water pump through the overpressure relief unit.