Anti-freezing heat exchange system for preparing bathing hot water by using mine waste heat energy

Abstract

The utility model discloses an anti-freezing heat exchange system for preparing bathing hot water by using mine waste heat energy, which belongs to the technical field of mine waste heat recovery, and comprises a heat exchanger, a heat exchange pipe, a heat exchange pipe, a heat exchange pipe, a heat exchange pipe and a heat exchange pipe, and is characterized in that the heat exchanger is of a dividing wall type and is internally provided with a water circulation pipe and a medium circulation pipe for mutual heat exchange; the medium circulating pipeline is communicated with mine equipment for discharging waste heat energy; one end, far away from the heat exchanger, of the water circulating pipeline is communicated with a heating water tank; the heating water tank communicates with a heat storage water tank through a self-flowing pipe, and the heat storage water tank communicates with a bathroom water tank through a hot water conveying pipe. The top of the heating water tank communicates with a water supplementing pipe. Waste heat energy generated in the operation process of the mine equipment is fully utilized, hot water is prepared to be supplied to workers for bathing, meanwhile, safe, automatic and fault-free operation of the mine equipment and a hot water system can be guaranteed, the phenomenon that bathing hot water is prepared by heating surface water through fire coal or electricity consumption is avoided or reduced, and the energy consumption is reduced. And the system is safe, intelligent and remarkable in energy-saving and environment-friendly effects.

Description

Technical Field

[0001] The utility model belongs to the technical field of mine waste heat recovery, and particularly relates to an anti-freezing heat exchange system for producing bath hot water by using mine waste heat energy. Background Art

[0002] A variety of equipment is required in the mine production process, and a large amount of electric energy is consumed, such as equipment like air compressors, diesel engines, and reduction motors. Since mine equipment has strict requirements for the working temperature, these devices consume electrical energy during operation and generate heat during operation. For example, the temperature of the high-temperature and high-pressure oil and gas of the air compressor is usually between 80°C and 100°C, and the lubricating oil temperature of the reduction motor is usually between 40°C and 80°C. Generally, mine equipment cools down through its own air convection heat dissipation system, and a large amount of heat energy is discharged into the atmosphere, resulting in waste.

[0003] In the prior art, by using the principle of heat energy exchange, the heat generated and wasted during the operation of mine equipment can be recovered and converted into water through an indirect heat exchange device. After the water absorbs the heat, the water temperature will rise, and the produced hot water can be used for bathing in the mine bath. However, the biggest hidden danger of the heat exchange system using water as the heat transfer medium during winter operation is that the circulating water cannot be interrupted. Once the flow is interrupted, the water in the heat exchanger will quickly freeze and expand. Generally, the heat exchanger is made of thin-walled metal materials, and the strength is not enough to overcome the expansion force after the water freezes into ice, which easily causes the heat exchanger to freeze and crack and become scrapped. Therefore, the anti-freezing reliability design during the winter operation of the heat exchange system is crucial.

[0004] Therefore, an anti-freezing heat exchange system for producing bath hot water by using mine waste heat energy is proposed. Content of the Utility Model

[0005] To solve the above technical problems, the utility model proposes an anti-freezing heat exchange system for producing bath hot water by using mine waste heat energy.

[0006] To achieve the above object, the utility model provides an anti-freezing heat exchange system for producing bath hot water by using mine waste heat energy, including: a heat exchanger, the heat exchanger is a partition type, and there are two sets of circulating pipelines, namely a water circulation pipeline and a medium circulation pipeline, for heat exchange with each other; the medium circulation pipeline is connected to the mine equipment discharging waste heat energy, the water circulation pipeline is provided with a water circulation pump, and one end of the water circulation pipeline far away from the heat exchanger is connected to a hot water production tank; the hot water production tank is connected to a hot water storage tank through a gravity flow pipe, a gravity flow valve is fixedly connected to the gravity flow pipe, and the hot water storage tank is connected to a bathroom water tank through a hot water delivery pipe; a water supply pipe is connected to the top of the hot water production tank.

[0007] Preferably, a hot water delivery pump is fixedly connected to the hot water delivery pipe.

[0008] Preferably, it further includes an automatic monitoring network device, which is electrically connected to the heat exchanger, the mine equipment for discharging waste heat energy, the water circulation pump, the hot water production tank, the hot water storage tank, the bathroom water tank, and the hot water delivery pump through monitoring network lines respectively.

[0009] Preferably, the hot water production tank is arranged higher than the hot water storage tank.

[0010] Preferably, the position of the self-flow pipe interface on the hot water production tank is arranged higher than the interface where the water circulation pipe returns to the heat exchanger.

[0011] Preferably, a temperature sensor is arranged in the hot water production tank, and the temperature sensor is electrically connected to the automatic monitoring network device.

[0012] Preferably, the heat exchanger is a thin-walled metal partition heat exchanger.

[0013] Preferably, the circulating medium in the medium circulation pipeline is cooling oil or antifreeze; the heat exchange medium inside the water circulation pipeline is softened water.

[0014] Compared with the prior art, the utility model has the following advantages and technical effects:

[0015] The mine equipment for discharging waste heat energy can drive the heat exchange medium to circulate in the medium circulation pipeline, the water circulation pump can drive the water in the hot water production tank to flow in the water circulation pipeline, the heat exchange medium in the medium circulation pipeline and the water in the water circulation pipeline conduct heat exchange in the heat exchanger, and the heat generated and discarded during the operation of the mine equipment is recovered through heat exchange and converted into water. After the water absorbs the heat, the water temperature will rise, the medium temperature will drop, and then it will circulate back to the mine equipment, reducing the operating temperature of the mine equipment and ensuring that the mine equipment operates within the normal temperature range; when the water temperature rises to the set temperature, the self-flow valve opens, and the water enters the hot water storage tank through the self-flow pipe for storage. The hot water in the storage tank can be transported to the bathroom water tank through the hot water delivery pipe to supply the employees' bathing water when needed; after the water in the hot water production tank is discharged into the hot water storage tank, the circulating water is replenished in time through the make-up water pipe. The utility model makes full use of the waste heat energy generated during the operation of the mine equipment to produce hot water to supply the employees' bathing water, and at the same time can ensure the safe, automatic and trouble-free operation of the mine equipment and the hot water system, avoiding or reducing the production of bathing hot water by burning coal or consuming electricity to heat surface water. The system is safe, intelligent, energy-saving and has remarkable environmental protection effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of an anti-freezing heat exchange system for using the waste heat of a mine to produce bath hot water in the present utility model.

[0018] In the figure: 1. Heat exchanger; 2. Water circulation pipeline; 3. Hot water production tank; 4. Gravity flow pipe; 5. Hot water storage tank; 6. Hot water delivery pipe; 7. Bathroom water tank; 8. Automatic monitoring network device; 9. Monitoring network line; 10. Mine equipment for discharging waste heat; 11. Medium circulation pipeline; 12. Water circulation pump; 13. Gravity flow valve; 14. Make-up water pipe; 15. Hot water delivery pump. Specific implementation manners

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0021] Referring to Figure 1 As shown, this embodiment provides an anti-freezing heat exchange system for using the waste heat of a mine to produce bath hot water, including: a heat exchanger 1, the heat exchanger 1 is a partition type, and there are two sets of circulation pipelines, namely a water circulation pipeline 2 and a medium circulation pipeline 11, inside for heat exchange with each other; the medium circulation pipeline 11 is connected to the mine equipment 10 for discharging waste heat, the water circulation pipeline 2 is provided with a water circulation pump 12, and one end of the water circulation pipeline 2 far from the heat exchanger 1 is connected to a hot water production tank 3; the hot water production tank 3 is connected to a hot water storage tank 5 through a gravity flow pipe 4, a gravity flow valve 13 is fixedly connected to the gravity flow pipe 4, and the hot water storage tank 5 is connected to a bathroom water tank 7 through a hot water delivery pipe 6; a make-up water pipe 14 is connected to the top of the hot water production tank 3.

[0022] The mine equipment 10 for discharging waste heat energy can drive the heat exchange medium to circulate in the medium circulation pipeline 11. The water circulation pump 12 can drive the water in the hot water production tank 3 to flow in the water circulation pipeline 2. The heat exchange medium in the medium circulation pipeline 11 and the water in the water circulation pipeline 2 conduct heat exchange in the heat exchanger 1, converting the heat generated and wasted during the operation of the mine equipment through heat exchange recovery into the water. After the water absorbs the heat, the water temperature will rise, the medium temperature will decrease, and then it will circulate back to the mine equipment, reducing the operating temperature of the mine equipment and ensuring that the mine equipment operates within the normal temperature range. When the water temperature rises to the set temperature, the self-flow valve opens, and the water enters the hot water storage tank 5 through the self-flow pipe 4 for storage. The hot water in the storage tank can be transported to the bathroom water tank 7 through the hot water delivery pipe 6 when needed to supply bath water for workers. After the water in the hot water production tank 3 is discharged into the hot water storage tank 5, the circulating water is replenished in a timely manner through the make-up water pipe 14. The utility model makes full use of the waste heat energy generated during the operation of the mine equipment to produce hot water for supplying bath water for workers. At the same time, it can also ensure the safe, automatic and trouble-free operation of the mine equipment and the hot water system, avoiding or reducing the use of coal or electricity to heat surface water to produce bath hot water, with significant safety, intelligence, energy-saving and environmental protection effects.

[0023] In a further optimized solution, a hot water delivery pump 15 is fixedly connected to the hot water delivery pipe 6.

[0024] The hot water in the hot water storage tank 5 can flow into the bathroom water tank 7 by gravity. When the terrain of the hot water storage tank 5 is lower than that of the bathroom water tank 7, it can also be pumped into the bathroom water tank 7 by the hot water delivery pump 15.

[0025] In a further optimized solution, an automatic monitoring network device 8 is further included. The automatic monitoring network device 8 is electrically connected to the heat exchanger 1, the mine equipment 10 for discharging waste heat energy, the water circulation pump 12, the hot water production tank 3, the hot water storage tank 5, the bathroom water tank 7 and the hot water delivery pump 15 respectively through the monitoring network line 9.

[0026] The automatic monitoring network device 8 realizes intelligent automatic control of the anti-freezing heat exchange system for producing bath hot water from mine waste heat energy through the monitoring network line 9, including but not limited to timely water replenishment, water drainage and water temperature monitoring in the water tank.

[0027] The monitoring network line 9 can be a wired cable or a wireless network connection device for signal transmission between the automatic monitoring network device 8 and each device.

[0028] In a further optimized solution, the hot water production tank 3 is arranged higher than the hot water storage tank 5.

[0029] The arrangement of the hot water production tank 3 higher than the hot water storage tank 5 enables the hot water to flow from the hot water production tank 3 into the hot water storage tank 5 through the potential energy self-flow pipe 4 and the valve without additional power, saving energy and being environmentally friendly.

[0030] For a further optimized solution, the interface position of the gravity flow pipe 4 on the hot water tank 3 is higher than the interface arrangement of the water circulation pipe when it flows back to the heat exchanger 1.

[0031] Preferably, the interface position of the gravity flow pipe 4 on the hot water tank 3 is arranged 0.5 meters higher than the interface of the water circulation pipe when it flows back to the heat exchanger 1. In this way, it can be ensured that there is always circulating water flowing in the heat exchanger 1 in winter, and the freezing damage phenomenon will not occur.

[0032] For a further optimized solution, a temperature sensor is provided in the hot water tank 3, and the temperature sensor is electrically connected to the automatic monitoring network device 8.

[0033] The temperature sensor in the hot water tank 3 monitors the water temperature in the tank and transmits the data to the automatic monitoring network device 8. The automatic monitoring network device 8 can open and close the gravity flow valve 13 according to the temperature in the temperature sensor, and then control the discharge of the heated water in the hot water tank 3.

[0034] For a further optimized solution, the heat exchanger 1 is a thin-walled metal partition heat exchanger 1.

[0035] The thin-walled metal partition heat exchanger 1 has high heat exchange efficiency, small heat loss, compact and light structure, small floor area, convenient installation and cleaning, wide application, and long service life.

[0036] For a further optimized solution, the circulating medium in the medium circulation pipeline 11 is cooling oil or antifreeze; the internal heat exchange medium in the water circulation pipeline 2 is softened water.

[0037] Cooling oil or antifreeze is not easy to freeze and has high heat conduction efficiency, and softened water is not easy to scale, so it is not easy to block the pipeline.

[0038] The details not elaborated in the present utility model are all well-known conventional technical means in the art.

[0039] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0040] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An anti-freezing heat exchange system for producing bathing hot water by using the waste heat of a mine, characterized in that, Comprising: A heat exchanger (1), the heat exchanger (1) being a partition type, with two sets of circulating pipelines, namely a water circulation pipeline (2) and a medium circulation pipeline (11), exchanging heat with each other; the medium circulation pipeline (11) is connected to the waste heat discharging mine equipment (10), the water circulation pipeline (2) is provided with a water circulation pump (12), and one end of the water circulation pipeline (2) far from the heat exchanger (1) is connected to a hot water production tank (3); the hot water production tank (3) is connected to a hot water storage tank (5) through a gravity flow pipe (4), a gravity flow valve (13) is fixedly connected to the gravity flow pipe (4), and the hot water storage tank (5) is connected to a bathroom water tank (7) through a hot water delivery pipe (6); a water replenishing pipe (14) is connected to the top of the hot water production tank (3).

2. The anti-freezing heat exchange system for producing bath hot water by using the waste heat of mine shafts according to claim 1, wherein: A hot water delivery pump (15) is fixedly connected to the hot water delivery pipe (6).

3. The anti-freezing heat exchange system for producing bath hot water by using the waste heat of the mine shaft according to claim 2, characterized in that: It further includes an automatic monitoring network device (8), and the automatic monitoring network device (8) is electrically connected to the heat exchanger (1), the waste heat discharging mine equipment (10), the water circulation pump (12), the hot water production tank (3), the hot water storage tank (5), the bathroom water tank (7) and the hot water delivery pump (15) respectively through a monitoring network line (9).

4. The anti-freezing heat exchange system for producing bath hot water by using the waste heat of mine shafts according to claim 1, characterized in that: The hot water production tank (3) is arranged higher than the hot water storage tank (5).

5. The anti-freezing heat exchange system for producing bath hot water by using the waste heat of the mine shaft according to claim 1, characterized in that: The interface position of the gravity flow pipe (4) on the hot water production tank (3) is arranged higher than the interface of the water circulation pipe flowing back to the heat exchanger (1).

6. The anti-freezing heat exchange system for producing bath hot water by using the waste heat of the mine shaft according to claim 3, wherein: A temperature sensor is arranged in the hot water production tank (3), and the temperature sensor is electrically connected to the automatic monitoring network device (8).

7. The anti-freezing heat exchange system for producing bath hot water by using the waste heat of the mine shaft according to claim 1, wherein: The heat exchanger (1) is a thin-walled metal partition heat exchanger (1).

8. The anti-freezing heat exchange system for producing bath hot water by using the waste heat of the mine shaft according to claim 1, characterized in that: The circulating medium in the medium circulation pipeline (11) is cooling oil or antifreeze; the internal heat exchange medium in the water circulation pipeline (2) is softened water.

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