Heat exchange cooling device

Abstract

The utility model discloses a heat exchange cooling device which comprises an exploring tube, a pushing air cylinder and a control unit, the rear end of the exploring tube is respectively provided with a cooling liquid inlet and a cooling liquid outlet, and an air cooler, a liquid storage box and a water pump are sequentially connected between the cooling liquid outlet and the cooling liquid inlet through pipelines. A flow meter and a pressure sensor are installed in the pipeline, a temperature sensor is installed in the pipeline connected with the cooling liquid outlet, and the control unit is electrically connected with the flow meter, the pressure sensor and the temperature sensor on one hand, and is electrically connected with the pushing air cylinder and a draught fan of the air cooler on the other hand. Under the abnormal condition, the exploring tube can be withdrawn from the kiln in time, so that the risk that the exploring tube is burnt out is reduced, and a gas analysis device or a hearth flame monitoring device in the exploring tube can be prevented from being damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kiln supporting device technical field, specifically a heat exchange cooling device. BACKGROUND

[0002] When the kiln is in the calcination operation, the gas analysis device needs to collect the gas in the kiln to analyze the gas composition (O2, CO, SO2, NOx, etc.), so as to scientifically, effectively and accurately analyze the internal combustion state of the kiln, and then control the coal injection amount and the air (O2) injection amount, so that the ratio of the two is maintained within a reasonable range, so that the kiln reaches an ideal combustion state, which can ensure the calcination efficiency of the kiln and ensure the energy-saving and emission-reducing effect of the kiln.

[0003] In addition, the hearth flame monitoring device also needs to be used to monitor the flame combustion state in the kiln in real time, and according to the size and color of the flame, the flame combustion condition and the operation condition in the hearth can be accurately judged.

[0004] Whether it is the gas analysis device or the hearth flame monitoring device, a probe pipe needs to be used as a carrier, and a cylinder is usually used to drive the probe pipe to enter and exit the kiln through the embedded pipe fixed on the furnace wall. Since the temperature in the furnace is as high as 900-1600℃, in order to avoid the probe pipe from being burned out and damaged, and further damaging the gas analysis device and the hearth flame monitoring device, heat exchange cooling is needed. The common technical means for heat exchange cooling is to set an air cooler, a liquid tank and a water pump outside the furnace, and connect the cooling liquid inlet and outlet of the probe pipe, the air cooler, the liquid tank and the water pump through a pipeline.

[0005] In actual use, since the kiln is in a continuous and uninterrupted working state, the gas collection and flame monitoring in the furnace also need to maintain a continuous state for a sufficient time. Therefore, in order to adapt to this working condition, the water pump needs to be in a full-load working state to ensure that the cooling liquid keeps flowing in the pipeline, and thus the probe pipe can be effectively cooled. However, when the water pump is in a full-load working state, the risk of failure increases. Once the water pump fails and the cooling liquid circulation is not smooth, the probe pipe in the furnace may be burned out at any time, which may cause the gas analysis device and the hearth flame monitoring device inside the probe pipe to be damaged at any time. TECHNICAL SOLUTION

[0006] The utility model discloses a heat exchange cooling device, which can withdraw the probe pipe from the kiln in time in abnormal conditions, reduce the risk of burning out the probe pipe, and prevent the gas analysis device or the hearth flame monitoring device inside the probe pipe from being damaged.

[0007] In order to achieve the above object, the utility model provides the following technical scheme:

[0008] A heat exchange cooling device, including the probe pipe of going into and out of kiln, push gas cylinder for sending probe pipe into and moving out of kiln and control unit, the rear end of probe pipe is equipped with cooling liquid import and cooling liquid export respectively, cooling liquid export and cooling liquid import are connected with air cooler, liquid storage tank and water pump in proper order through pipeline, its characterized in that: the pipeline is installed with flowmeter and pressure sensor respectively, and the pipeline connected with cooling liquid export is installed with temperature sensor, one side of control unit is electrically connected with flowmeter, pressure sensor and temperature sensor respectively, and the other side is electrically connected with push gas cylinder and fan of air cooler respectively.

[0009] Further, the probe pipe is provided with a control box between the air cooler and the liquid storage tank, and the pipeline penetrates through the control box.

[0010] Further, the control unit, the flowmeter, the pressure sensor and the temperature sensor are located in the control box.

[0011] Further, a display screen electrically connected with the control unit is installed on the front panel of the control box, for displaying the flow, pressure and outlet temperature values of the cooling liquid flowing through the pipeline.

[0012] Further, the water pump is a submersible pump installed in the liquid storage tank.

[0013] Further, a liquid level meter is installed on one side of the liquid storage tank, for displaying the liquid level in the liquid storage tank.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The utility model installs flowmeter, pressure sensor and temperature sensor in the pipeline respectively, detects the flow, pressure and outlet temperature data in the pipeline in real time, and feeds back to the control unit, once abnormal, can send control instruction to push gas cylinder, makes it drive probe pipe to exit kiln, thereby reduces the risk of probe pipe being burnt out, is favorable for probe pipe internal gas analysis device or furnace flame monitoring device to be exempted from damage. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structural schematic diagram of the utility model.

[0017] Figure 2 It is the electrical control principle block diagram of the utility model. DETAILED DESCRIPTION

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] See Figure 1 , 2 A heat exchange and cooling device includes a probe 1 that can enter and exit a kiln, a push cylinder (not shown in the figure) for sending the probe 1 into and out of the kiln, and a control unit. The rear end of the probe 1 is provided with a coolant inlet 2 and a coolant outlet 3. The coolant outlet 3 and the coolant inlet 2 are connected in sequence by a pipe 4 to an air cooler 5, a liquid storage tank 6, and a water pump 7. A flow meter 8 and a pressure sensor 9 are installed in the pipe 4. A temperature sensor 10 is installed in the pipe 4 connected to the coolant outlet 3. The control unit is electrically connected to the flow meter 8, the pressure sensor 9, and the temperature sensor 10, and is also electrically connected to the push cylinder and the fan of the air cooler 5.

[0020] In this utility model, a control box 11 is provided between the probe 1, the air cooler 5, and the liquid storage tank 6, and the pipe 4 passes through the control box 11.

[0021] In this invention, the control unit, flow meter 8, pressure sensor 9, and temperature sensor 10 are all located in the control box 11, thereby achieving centralized installation and control.

[0022] In this invention, a display screen 12 electrically connected to the control unit is installed on the front side panel of the control box 11, so as to realize the real-time display of the flow rate, pressure and outlet temperature of the coolant flowing through the pipe 4, so as to facilitate the staff to grasp the on-site situation in real time and provide timely feedback.

[0023] In this invention, the water pump 7 is a submersible pump, which is installed in the liquid storage tank 6. It has high conveying efficiency, occupies little space, and is easy to maintain.

[0024] In this invention, a level gauge 13 is installed on one side of the liquid storage tank 6 to display the liquid level in the liquid storage tank 6, which is beneficial for replenishing coolant into the liquid storage tank 6 as needed.

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] During use, the low-temperature coolant in the storage tank 6 is drawn by the water pump 7 and sent to the coolant inlet 2 through the pipe 4. It flows through the jacket in the probe tube 1 to exchange heat and cool the probe tube 1.

[0027] The high-temperature cooling liquid after heat exchange is discharged through the cooling liquid outlet 4, and then enters the air cooler 5 through the pipeline 4. In the process of flowing through the inside, the high-temperature cooling liquid exchanges heat with the external air flow provided by the fan through the pipe wall and the fin, and returns to normal temperature.

[0028] The low-temperature cooling liquid flowing out of the air cooler 5 enters the liquid tank 6, and circulates to continuously exchange heat and cool the probe tube 1.

[0029] In this process, the flow meter 8, the pressure sensor 9 and the temperature sensor 10 detect the flow, pressure and outlet temperature data in the pipeline 4 in real time, and feed back to the control unit, and are displayed in real time by the display screen 12.

[0030] Once the water pump 7 fails to operate normally, it can be directly reflected in the flow and pressure data in the pipeline 4, that is, when the detected flow and pressure data are significantly lower than the normal value, or even no flow and pressure data are detected, that is, low flow and low pressure, or even zero flow and zero pressure, it reflects that the cooling liquid supply is insufficient, indicating that the water pump 7 fails.

[0031] At this time, the control unit sends a control instruction to the push cylinder to make corresponding action, drives the probe tube to exit the kiln in time, so as to reduce the risk of the probe tube being burned out, and is beneficial to the gas analysis device or the furnace flame monitoring device inside the probe tube to avoid damage.

[0032] In addition, when the outlet temperature data is higher than the set value, that is, the temperature is too high, it indicates that the power of the air cooler 5 cannot meet the needs of the probe tube 1 for heat exchange and cooling, at this time, the control unit sends a control instruction to the push cylinder to make corresponding action, drives the probe tube to exit the kiln in time, which can also reduce the risk of the probe tube being burned out.

[0033] In addition, in winter when the air temperature is low, when the outlet temperature data is lower than the set value, it indicates that the air temperature of the external environment can meet the needs of naturally cooling the high-temperature cooling liquid, at this time, the control unit can not start the fan, or periodically start and stop the fan, which can meet the needs of heat exchange and cooling of the high-temperature cooling liquid, and achieve the purpose of energy saving.

[0034] Although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

[0035] The above merely provides the preferred embodiments of the present application, and is not intended to limit the scope of the present application; that is, any equivalent variations made according to the scope of the claims of the present application shall all fall within the scope of protection of the claims of the present application.

Claims

1. A heat exchange and cooling device, comprising a probe capable of entering and exiting a kiln, a pushing cylinder for sending the probe into and out of the kiln, and a control unit, wherein the rear end of the probe is respectively provided with a coolant inlet and a coolant outlet, and an air cooler, a liquid storage tank, and a water pump are sequentially connected between the coolant outlet and the coolant inlet via a pipe, characterized in that: A flow meter and a pressure sensor are installed in the pipeline, and a temperature sensor is installed in the pipeline connected to the coolant outlet. The control unit is electrically connected to the flow meter, pressure sensor and temperature sensor, and is also electrically connected to the push cylinder and the fan of the air cooler.

2. The heat exchange cooling device according to claim 1, characterized in that: A control box is provided between the probe, the air cooler, and the liquid storage tank, and the pipeline passes through the control box.

3. The heat exchange cooling device according to claim 2, characterized in that: The control unit, flow meter, pressure sensor, and temperature sensor are all located in the control box.

4. The heat exchange cooling device according to claim 2, characterized in that: The front panel of the control box is equipped with a display screen that is electrically connected to the control unit, which is used to display the flow rate, pressure, and outlet temperature of the coolant flowing through the pipe.

5. The heat exchange cooling device according to claim 1, characterized in that: The water pump is a submersible pump and is installed in the liquid storage tank.

6. The heat exchange cooling device according to claim 1, characterized in that: A level gauge is installed on one side of the liquid storage tank to display the liquid level in the tank.

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