CN104930908A - Comprehensive anti-scaling system for mine cooling engineering - Google Patents

Abstract

A comprehensive anti-fouling system for mine cooling engineering, which includes a multi-stage multi-channel filter for filtering large-size particles from the upstream to the downstream of the waterway, and a heat exchanger for recovering mine water heat energy. A heat exchange pipe section and a physical descaling device are connected in parallel between the two ends of the heat exchange pipe section; the physical descaling device includes a ball catcher, a ball delivery pipe and a launching water pump; the ball catcher is arranged on the heat exchange pipe section The end of the outlet pipe is used to recover the cleaning balls that have passed through the heat exchange pipe section, and collect the recovered cleaning balls into the ball collector; one end of the serving pipe is connected to the water inlet pipe end of the heat exchange pipe section, and the other end is connected to the The small ball collector is connected so that the small balls in the small ball collector can pass through and enter the water inlet pipe end of the heat exchange pipe section; the launching water pump and the circulation pipe are connected with two sets of water intake paths and return water paths, and the cleaning The small balls rush into the heat exchange tube section at an angle with high pressure and high speed water flow, forming a turbulent flow, and the cleaning ball quickly collides with the tube wall of the heat exchange tube section to improve the scale removal efficiency.

Description

A comprehensive anti-fouling system for mine cooling engineering

technical field

The invention relates to the field of comprehensive utilization of mining engineering and geothermal engineering, in particular to a comprehensive anti-scaling system used in mine cooling engineering.

Background technique

Scaling is a common problem in the circulating water system of mine cooling and mine geothermal utilization projects. According to the survey, there are varying degrees of fouling in geothermal systems in Japan, Iceland, Tibet, Beijing, Tianjin, Henan, Liaoning and other countries and regions, and more than 90% of the heat exchangers have different degrees of fouling. The increase of fouling amount directly leads to the reduction of the heat transfer coefficient of the pipeline. If the fouling is 0.5mm, the heat transfer coefficient will drop by 30%, and if the fouling is 1mm, the heat transfer coefficient will drop by 50%. Steinhagen made a rough estimate of the losses caused by dirt in the industrial sectors of developed countries in 1992. The increased costs due to dirt in the United States, Germany, the United Kingdom and Japan all accounted for about 0.25% of the GNP of the year; the world's dirt losses were about 45 billion US dollars , accounting for an average of 0.2% of the total GNP.

The dirt on the pipe wall not only affects the transportation of water in the pipe, but also affects the heat transfer efficiency of the water in the pipe. The thermal conductivity of dirt on the pipe wall is generally only a tenth of that of carbon steel. When the amount of dirt on the pipe wall increases, the heat transfer rate between the pipe surface and the water transported in the pipe decreases. In the design of the heat exchanger, due to the influence of fouling, the design area of the heat exchanger is 70-80% larger than the required area, of which 30-50% is to deal with the performance reduction caused by fouling. In addition, the presence of dirt can also cause local corrosion and even perforation of the pipeline, which seriously threatens the safe operation of the pipeline system.

Therefore, it is of great significance to regularly arrange descaling measures for the heat exchange pipes of the mine cooling system, and it has important economic value in terms of equipment maintenance costs and energy consumption savings. At present, chemical methods are used in the industry for descaling, but the chemical substances used for descaling are often acidic, and at the same time, there will be a certain degree of corrosion on the components of the pipeline itself and the sealing ring of the pipeline, which reduces the wear and tear of the pipeline. service life. In addition, although there are some physical systems or equipment for pipeline descaling, there are problems such as low descaling efficiency, large amount of residual dirt, complex structure of the descaling system, troublesome control and operation procedures, and high equipment maintenance costs.

For this reason, the purpose of the inventor is to design a comprehensive physical descaling device to prevent fouling system, which can prevent, reduce, and clean up the fouling of water pipelines in mine cooling systems and mine geothermal utilization systems, thereby improving heat exchange efficiency , to reduce operating costs.

Contents of the invention

The object of the present invention is to provide a comprehensive anti-scaling system for physical descaling devices to alleviate or solve the problem of pipeline scaling in mine cooling systems or mine geothermal utilization systems.

In order to solve the above technical problems, the present invention provides a physical descaling device for a comprehensive anti-scaling system for mine cooling projects, a physical descaling device, and the anti-scaling system includes:

A multi-stage multi-channel filter, including a water inlet and a water outlet for mine water to flow through, several independent channels are connected in parallel between the water inlet and the water outlet, and at least two channels with different pore sizes are connected in series in each channel. The filters of the strainer, each filter has a solid particle collection tank at the bottom;

A heat exchange pipe section, which includes a heat exchanger and a water inlet pipe end and an outlet pipe end connected to two ends of the heat exchanger, the water inlet pipe end is connected to the water outlet of the multi-stage multi-channel filter; The heater includes a tube shell and a heat exchange tube bundle inside, the two ends of the heat exchange tube bundle are respectively connected to the water inlet pipe end and the water outlet pipe end, and circulating cooling water is passed into the heat exchange tube shell;

A physical descaling device, connected in parallel between the two ends of the heat exchange tube section, comprising:

A ball catcher, which is arranged at the outlet pipe end of the heat exchange pipe section, is used to recover the cleaning pellets that have passed through the heat exchange pipe section, and the ball catcher is connected with a pellet collector with a ball return pipe, and the The recovered cleaning balls are collectively stored in the ball collector; a serving pipe, one end of the serving pipe is connected to and communicated with the side wall of the water inlet pipe end of the heat exchange pipe section, and the serving pipe is another One end is connected with the ball collector, and the ball delivery tube can allow the balls in the ball collector to pass through and enter the water inlet pipe end of the heat exchange pipe section; a launching water pump, the water launch pump and the heat exchange pipe section Two sets of water intake paths and return water paths are connected; when the launch water pump is working with the first set of water intake paths and return water paths, the return water of the launch water pump flows through the ball collector and the ball delivery pipe, and the The cleaning balls are washed into the heat exchange pipe section with high-speed and high-pressure water; when the launching water pump is working with the second set of water intake path and water outlet path, the water intake of the launching water pump flows through the ball catcher and the ball collector ; and when the launching water pump works with the first set, the second set of water intake path and the return water path respectively, the direction of the water flowing through the small ball collector is opposite.

In one embodiment of the present invention, the physical descaling device includes a first three-way pipe, the first branch of the first three-way pipe is connected to the ball catcher, and the first branch of the first three-way pipe is A pipe constitutes the ball return pipe; the second branch pipe of the first three-way pipe is connected to the heat exchange pipe section, and the second branch pipe of the first three-way pipe constitutes the ball serving pipe; the first three-way pipe The third branch of the pipe is connected to the ball collector, and the ball collector is arranged in the pipeline of the third branch of the first three-way pipe.

As in the above-mentioned scheme, the opening at the end of the third branch pipe of the first three-way pipe of the physical descaling device is a sewage outlet, which is used to remove the dirt debris detached from the pipe wall after being cleaned by the cleaning ball; A blowdown valve can be further provided at the mouth.

According to the solution described above, the physical descaling device also includes a second three-way pipe, the first branch of the second three-way pipe is connected to the heat exchange pipe section, and the first branch of the second three-way pipe is The two branch pipes are connected to the water inlet of the launch water pump, the first branch pipe and the second branch pipe of the second three-way pipe constitute the first water intake path of the launch water pump; the third branch pipe of the second three-way pipe is connected to the water inlet of the launch water pump. The third branch of the first three-way pipe is connected.

According to the solution described above, the physical descaling device further includes a third three-way pipe, the first branch of the third three-way pipe is connected to the heat exchange pipe section, and the first branch of the third three-way pipe is The two branch pipes are connected to the water outlet of the launch water pump, the first branch pipe and the second branch pipe of the third three-way pipe constitute the second return path of the launch water pump; the third branch pipe of the third three-way pipe It is connected with the third branch pipe of the first tee pipe.

In the solution described above, the third branch of the second three-way pipe, the third branch of the first three-way pipe, and the ball-serving pipe of the physical descaling device constitute the first circuit of the launching water pump. water path.

According to the solution mentioned above, the ball return pipe of the physical descaling device, the third branch pipe of the first three-way pipe, the third branch pipe of the second three-way pipe, and the third branch pipe of the second three-way pipe The two branch pipes constitute the second water intake path of the launching water pump.

In the scheme as described above, the service pipe and return pipe of the physical descaling device, the first branch pipe and the third branch pipe of the second three-way pipe, the first branch pipe and the third branch pipe of the third three-way pipe At least one valve is arranged on the pipeline of the third branch pipe, and the valve is an electronic valve or a manual valve.

According to the above solution, the physical descaling device also includes a controller, the valves are electronic valves, and the electronic valves are all connected with the controller signal, and the electronic valves are controlled by the controller. opening and closing, so that the launching water pump works with different water intake paths and return water paths.

According to the solution described above, the controller of the physical descaling device is an explosion-proof electronic control system.

According to the solution mentioned above, the bottom of each filter of the multi-stage multi-channel filter is provided with a sewage outlet.

According to the solution mentioned above, the cleaning balls of the physical descaling device are roughly in the shape of a spherical structure, with several burrs on the surface. For example, it can be made by adopting a denser core and wrapping a layer of wear-resistant rubber on the outside to form some burrs on the surface of the shell. The wear-resistant rubber has high frictional force, strong descaling ability and high reuse rate, and will not damage the relatively hard inner wall of the pipeline during descaling; or the small ball is a spherical structure formed by winding steel wires.

According to the solution mentioned above, the pellet collector of the physical descaling device is a sieve-shaped or basket-shaped container, which can collect the cleaning pellets without affecting the passage of water. The pellet collector is made of carbon steel with baked anti-corrosion paint. A transparent window can be included so that the condition of the cleaning balls can be observed from the outside. If the balls are worn and have no surface burrs, the transparent window can be opened to replace the cleaning balls therein.

According to the solution described above, the ball catcher of the physical descaling device has a sieve-shaped or basket-shaped funnel-shaped structure, which can catch the cleaning pellets and collect the cleaning pellets into the pellet collector through the opening at the bottom. The ball catcher can be made of carbon steel, baked with anti-corrosion paint on the outside, and the inner sieve is made of perforated SS316L stainless steel sheet metal. The sieve hole of the ball catcher should satisfy the water flow, and the water pressure loss should not be greater than 5kPa, and the ball should not be allowed to leak out or get stuck in the sieve hole.

In the solution mentioned above, the launch pump of the physical descaling device is a pump capable of generating high-pressure and high-speed water flow, which can also be called a high-pressure water pump, such as Dashan DZ-X125/1.6, Shengshi JH-HR-YFY-60 .

Beneficial technical effect of the present invention comprises:

1. The comprehensive anti-scaling system of the present invention includes a multi-stage multi-channel filter located upstream of the heat exchange pipe section, which can pre-treat the mine water to filter out minerals with large particles in order to avoid blocking the heat exchange pipe section; the heat exchange pipe section includes a heat exchanger, and the heat exchange tube bundle is a heat exchange pipe with a titanium nanometer anti-corrosion coating, and the heat exchanger is preferably selected as a three-way tube with anti-clogging, anti-corrosion, and explosion-proof functions. Anti heat exchanger.

In addition, a plurality of baffles can also be provided in the tube shell along the length direction, and water flow channels are provided on the baffles, and the heat exchange tube bundle runs through the water flow channels of the baffles, wherein the phases The water flow channels on the adjacent baffles are relatively dislocated or crossed in the axial direction of the tube shell; thus, the flow direction of the circulating cold water can be changed and restricted by these water flow channels, and a large number of turbulence or turbulence phenomena are formed in the tube shell, The disturbed fluid can scour the tube shell wall or tube bundle wall to prevent fouling, realize uniform heat exchange, improve heat exchange efficiency, and ensure the heat transfer performance of the heat exchange tube bundle.

2. The present invention also includes a purely physical descaling system for removing fouling of heat exchange pipe sections, so it is not corrosive to pipe fittings and sealing components; in addition, materials with appropriate hardness can be selected according to the material of pipe fittings and the main components and characteristics of dirt making the cleaning pellets;

3. In the present invention, the launching water pump of the physical descaling device is connected with the heat exchange pipe section with two sets of water intake paths and return water paths. When the launch water pump is working with the first set of water intake paths and return water paths , the return water of the launching water pump flows through the ball collector and the serving pipe; the high-pressure and high-speed water flow generated by the launching water pump drives the cleaning balls to rush into the water inlet pipe end of the heat exchange pipe section, and enter the heat exchange pipe section, so that The water produces turbulence, and each cleaning ball quickly collides with the pipe wall; therefore, the efficiency of descaling can be increased; when the launching water pump works with the second set of water intake path and water outlet path, the water intake of the launch water pump flows through the trapping The ball collector and the small ball collector form a large vortex suction at the location of the ball catcher at the outlet pipe end of the heat exchange pipe section, so that the small balls collected by the ball catcher and the dirt debris on the pipe wall are quickly brought into the small In the ball collector, the slag enters the third branch of the first three-way pipe and is discharged through the sewage outlet to increase the collection and circulation speed of small balls.

4. The serving tube of the physical descaling device in the present invention is connected to the side wall of the water inlet pipe end of the heat exchange pipe section and communicated with the heat exchange pipe section, so that the launching water pump uses the first set of water intake path and return water path When working, the high-pressure and high-speed water flow generated by the launching water pump rushes the cleaning balls in the ball collector into the heat exchange pipe section at high speed, and forms an angle with the water flow direction of the heat exchange pipe section, so that several cleaning balls are formed in a The initial velocity moves at a certain angle with the tube wall, thereby increasing the collision probability of the ball and the tube wall and improving the descaling efficiency.

5. The physical descaling device in the present invention can realize the entire operation process of automatically collecting and launching the cleaning balls only by means of the launching water pump, at least one tee pipe and the opening and closing of the matching valve, without setting up a special ball sending device, so that the whole The structure of the system is simple, the maintenance cost is low, and more importantly, its operation and control means are also very simple, which simplifies the process.

It is found through trial that the comprehensive anti-scaling system of the present invention can significantly reduce and remove the scaling in the pipelines of the mine cooling engineering system, improve the heat exchange efficiency of the mine hydrothermal heat, and increase the overall energy efficiency ratio of the mine cooling system by 40%.

Description of drawings

Fig. 1 is a block diagram of the scheme of the present invention.

Fig. 2 is a structural schematic diagram of a multi-stage multi-channel filter in the present invention.

Fig. 3 is a schematic structural diagram of the heat exchanger in the heat exchange tube section of the present invention.

Fig. 4 is a schematic structural diagram of a physical descaling device in the present invention.

Detailed ways

Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention is capable of various changes in different embodiments without departing from the scope of the present invention, and that the description and drawings therein are illustrative in nature and not limiting. this invention.

As shown in Fig. 1, it is a block diagram of the solution of the present invention. It includes a multi-stage multi-channel filter 10 located upstream of the mine water flow. The mine water coming out of the multi-stage multi-channel filter 10 enters the heat exchange pipe section 20 after being filtered to remove large particles of solid minerals. The device, through heat exchange with the circulating cooling water, reduces the temperature of the mine water and recovers the heat energy of the mine. A physical descaling device 30 is connected in parallel between the two ends of the heat exchange pipe section 20 , and is used for launching and recovering cleaning pellets to clean up the scale formed in the heat exchange pipe 20 .

As shown in FIG. 2 , it is a schematic structural diagram of a multi-stage multi-channel filter 10 in the present invention. The multi-stage multi-channel filter 10 includes a water inlet 11 and a water outlet 12 for mine water to flow through, and three independent channels 101, 102, 103 connected in parallel, wherein the channels 101 are connected in series with filter screens with different apertures The filters 1011 and 1012 have a solid particle collection tank 1013 at the bottom of the filters 1011 and 1012, and the collection tank 1013 may also include a sewage outlet 1014. The mesh aperture of the filter 1011 upstream of the water flow is larger than the mesh aperture of the filter 1012 to form primary filtration and secondary filtration respectively. Similarly, filters 1021 and 1022 with different pore sizes are connected in series in channel 102 , and filters 1031 and 1032 are connected in series in channel 103 . The main function of the multi-stage filter in series is to filter impurities of different particle sizes in the water body; multiple channels in parallel are mainly to prevent the filter of one channel from being blocked, and there are other channels for mine water to pass through.

As shown in FIG. 3 , it is a schematic structural view of the heat exchange pipe section 20 in the present invention, which includes a water inlet pipe end 21 and a water outlet pipe end 22 connected to both ends of a heat exchanger 23 . The heat exchanger 23 includes a tube shell 231 and a heat exchange tube bundle 232 inside. The tube shell 231 is fed with circulating cooling water (the inlet and outlet of the cooling water are not marked), and the two ends of the heat exchange tube bundle 232 are connected to the water inlet pipe end 21 And the water outlet pipe end 22, the water inlet pipe end 21 is connected to the water outlet 12 of the multi-stage multi-channel filter, and the mine water filtered by the multi-stage multi-pass filter 10 flows in the heat exchange tube bundle 232 .

Further, a plurality of baffles can be provided in the tube shell 231 along the length direction, and several water flow channels are arranged on the baffles, and the heat exchange tube bundle 232 runs through the water flow channels of the baffles, wherein the The water flow channels on the adjacent baffles form a relative dislocation or intersection in the axial direction of the tube shell 231, so that when the cooling water flows in the tube shell 231 of the heat exchanger 23, it is constantly restricted and changed by these water flow channels. The flow direction forms a large amount of turbulence and turbulence, which can wash the tube shell 231 and the heat exchange tube bundle 232, reduce the scaling of the cooling water in the tube shell, and improve the heat exchange efficiency.

As shown in Figure 4, it is a physical descaling device 30 in the present invention, referring to Figure 1, which is connected in parallel between the two ends of the heat exchange pipe section 20, and the physical descaling device 30 is mainly driven by high-speed and high-pressure water flow to clean small The balls are sprayed into the heat exchange tube section 20 or collected from the heat exchange tube section 20, and the heat exchange tube section 20 is regularly cleaned of fouling.

As shown in Figure 4, a specific embodiment of the physical descaling device 30, the physical descaling device 30 includes: a ball catcher 31, a ball collector 32, a first three-way pipe 40, a second three-way pipe 50 , the third three-way pipe 60, the launching water pump P, the controller 90 and A1, A2, B1, B2, B3, B4 are electronic valves, C1, C2, C3, C4, C5, and C6 are manual valves; each electronic valve is uniform The controller 90 is connected with a signal, and is controlled by the controller 90 to switch between on and off.

The ball catcher 31 is arranged in the outlet pipe end 22 of the heat exchange pipe section 20, and is connected with the ball collector 32 through the second branch pipe 42 of the first three-way pipe 40, and the first three-way pipe 40 is connected to the small ball collector 32. The branch pipe 41 is connected to the side of the pipe wall of the water inlet pipe end 11 of the heat exchange pipe section 20 and communicates with the heat exchange pipe section 20. The third branch pipe of the first three-way pipe is provided with the above-mentioned small ball collector. 32. The first branch pipe 41 is a serving pipe, and the second branch pipe 42 is a return pipe, wherein the first branch pipe 41 is provided with an electronic valve A1 and a manual valve C1; the second branch pipe 42 is provided with an electronic valve A2 and manual valves C2 and C3. The third branch pipe 43 has an end opening, which is a sewage outlet, and a manual sewage valve C6 is provided at this position.

A second tee pipe 50 includes a first branch pipe 51 , a second branch pipe 52 and a third branch pipe 53 . The first branch pipe 51 is connected to the water inlet pipe end 21 of the heat exchange pipe section 20, and the second branch pipe 52 is connected to the water inlet of the launching water pump P. When the first branch pipe 51 and the second branch pipe 52 are connected, they constitute the first water intake of the launching water pump P. Path; the third branch pipe 53 communicates with the third branch pipe 43 of the first three-way pipe 40 . An electronic valve B1 and a manual valve C4 are provided on the first branch pipe 51 ; and an electronic valve B2 is provided on the third branch pipe 53 .

A third three-way pipe 60 includes a first branch pipe 61 , a second branch pipe 62 and a third branch pipe 63 . The first branch pipe 61 is connected to the water outlet pipe end 22 of the heat exchange pipe section 20, and the second branch pipe 62 is connected to the water outlet of the launching water pump P. When the first branch pipe 61 and the second branch pipe 62 are connected, they constitute the second circuit of the launching water pump P. Water path; the third branch pipe 63 communicates with the third branch pipe 43 of the first branch pipe. An electronic valve B4 and a manual valve C5 are provided on the first branch pipe 61 ; and an electronic valve B3 is provided on the third branch pipe 63 .

According to the system of illustrated embodiment, its mode of operation is:

1) install the descaling system of the present embodiment on the heat exchange pipe section 20;

2) connect the power supply, the controller 90 starts to work according to the following process:

a. Open valves A2, B2, B4, close valves A1, B1, B3;

In this case, the working water circulation path of the launching water pump P is:

The water is successively taken from the outlet pipe end 22 of the heat exchange pipe section 20, flows through the ball catcher 31, the ball return pipe (i.e. the second branch pipe 42), flows through the pellet collector 32, and the first three-way pipe on the way. The third branch pipe 43, the third branch pipe 53 of the second three-way pipe, and the second branch pipe 52 of the second three-way pipe constitute the second water intake path of the launching water pump P; the return water path of the launching water pump P is through the valve B4, the second return path formed by the second branch pipe 62 and the first branch pipe 61; in this way, a vortex and a suction force are formed at the position of the ball catcher 31, and the cleaning pellets can be quickly collected and brought into the pellet collector 32. At the same time, the dirt debris is quickly discharged.

b. Open the valves A1, B1, B3, close the valves A2, B2, B4, and launch the cleaning ball;

In this case, the working water circulation path of the launching water pump P is:

The water intake path is, from the water inlet pipe end 21 of the heat exchange pipe section 20, flows through the first water intake path of the launch water pump P formed by the first branch pipe 51 and the second branch pipe 52; the return water path of the launch water pump P is through the valve B3, The third branch pipe 63, the third branch pipe 43 of the first three-way pipe 40, flow through the pellet collector 32 on the way, and the serving pipe (the first branch pipe 41) constitutes the first return water path; The high-speed water flow drives the cleaning balls in the small ball collector 32 to spray into the water inlet pipe end 21 from the serving pipe 41 at a high speed, and starts to move at an initial velocity at an angle with the pipe wall of the heat exchange pipe section 20, and the high-speed spraying At the same time, the water flow produces turbulent flow in the heat exchange tube section 20, which greatly increases the probability of the cleaning ball hitting the inner wall of the heat exchange tube section 20 at high speed, so that the scale is quickly and effectively washed and broken, and the scale removal efficiency is improved.

c. After the launch, the cleaning balls are driven by the pipeline water flow into the heat exchange pipeline of the cooling equipment to clean the dirt on the inner wall.

d. Repeat the above operations.

It is not difficult to see from the above process that in the above embodiment, the launch water pump P in the physical descaling 30 is connected to the heat exchange pipe section 20 with two sets of water intake paths and return water paths. When the launch water pump P is connected with the first When the water intake path and the return water path are working, the return water of the launch water pump P flows through the ball collector and the ball pipe; when the launch water pump P is working with the second set of water intake path and water outlet path, the The water taken by the launch water pump P flows through the ball catcher and the ball collector; and when the launch water pump P works with the first set, the second set of water intake path and the return water path, it flows through the ball collector of water flow in the opposite direction. In the first set of water intake path and return path and the second set of water intake path and return path, the pipes in some sections may overlap (that is, the pipes in the first set of water intake/return path It also assumes the role of the pipeline in the second set of water intake/return water path), but due to the different opening and closing of the valve, the direction of water flow is completely opposite. Therefore, the physical descaling device 30 can quickly collect cleaning pellets and launch cleaning pellets at a high speed by means of different working paths of the launching water pump P.

Wherein the cleaning ball is not shown in the figure, and it is generally in a spherical structure with several burrs on its surface. For example, it can be made by adopting a denser core and wrapping a layer of wear-resistant rubber on the outside to form some burrs on the surface of the shell. The wear-resistant rubber has high frictional force, strong descaling ability, and high reuse rate, and will not damage the relatively hard inner wall of the pipeline during descaling; or the small ball is a spherical structure formed by winding steel wires. Wherein the small ball collector 32 can be a sieve-shaped or basket-shaped containing device, which can collect the cleaning small balls without affecting the passage of water flow and dirt debris. Wherein, the ball catcher 31 can be any existing structure, and can also be a sieve-shaped or basket-shaped funnel-shaped structure, which can catch the cleaning pellets and collect the cleaning pellets to the pellet collector 32 through the opening at the bottom. Inside. The launching water pump P is a pump capable of generating high-pressure and high-speed water flow. At the same time, it is considered that the system of the present invention is mainly used in coal mines and needs to be explosion-proof, so the controller 70 can be an explosion-proof electronic control system. Wherein, the manual valves C1-C6 are set for the convenience of maintenance, and may not be set or the number of setting is not limited to one in this embodiment.

The above is only a representative specific implementation of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention.

Claims (10)

1. A comprehensive anti-scaling system for mine cooling engineering, characterized in that, the anti-scaling system comprises: A multi-stage multi-channel filter, including a water inlet and a water outlet for mine water to flow through, several independent channels are connected in parallel between the water inlet and the water outlet, and at least two channels with different pore sizes are connected in series in each channel. The filters of the strainer, each filter has a solid particle collection tank at the bottom; A heat exchange pipe section, which includes a heat exchanger and a water inlet pipe end and an outlet pipe end connected to two ends of the heat exchanger, the water inlet pipe end is connected to the water outlet of the multi-stage multi-channel filter; The heater includes a tube shell and a heat exchange tube bundle inside, the two ends of the heat exchange tube bundle are respectively connected to the water inlet pipe end and the water outlet pipe end, and circulating cooling water is passed into the heat exchange tube shell; A physical descaling device, connected in parallel between the two ends of the heat exchange tube section, which includes: a physical descaling device A ball catcher, which is arranged at the outlet pipe end of the heat exchange pipe section, is used to recover the cleaning pellets that have passed through the heat exchange pipe section, and the ball catcher is connected with a pellet collector with a ball return pipe, and the The recovered cleaning balls are collectively stored in the ball collector; a serving pipe, one end of the serving pipe is connected to and communicated with the side wall of the water inlet pipe end of the heat exchange pipe section, and the serving pipe is another One end is connected with the ball collector, and the ball delivery tube can allow the balls in the ball collector to pass through and enter the water inlet pipe end of the heat exchange pipe section; a launching water pump, the water launch pump and the heat exchange pipe section Two sets of water intake paths and return water paths are connected; when the launch water pump is working with the first set of water intake paths and return water paths, the return water of the launch water pump flows through the ball collector and the ball delivery pipe, and the The cleaning balls are washed into the heat exchange pipe section with high-speed and high-pressure water; when the launching water pump is working with the second set of water intake path and water outlet path, the water intake of the launching water pump flows through the ball catcher and the ball collector ; and when the launching water pump works with the first set, the second set of water intake path and the return water path respectively, the direction of the water flowing through the small ball collector is opposite. 2. The anti-scaling system according to claim 1, wherein the physical descaling device comprises a first three-way pipe, the first branch of the first three-way pipe is connected to the ball catcher connected, the first branch of the first three-way pipe constitutes the return pipe; the second branch of the first three-way pipe is connected to the heat exchange pipe section, and the second branch of the first three-way pipe constitutes the The above-mentioned serving pipe; the third branch pipe of the first three-way pipe is connected to the pellet collector, and the pellet collector is arranged in the pipeline of the third branch pipe of the first three-way pipe. 3. The anti-scaling system according to claim 2, wherein the physical descaling device further comprises a second three-way pipe, the first branch of the second three-way pipe communicates with the heat exchange The pipe section is connected, the second branch of the second three-way pipe is connected to the water inlet of the launching water pump, and the first branch and the second branch of the second three-way pipe constitute the first water intake path of the launching water pump; The third branch of the second three-way pipe is connected to the third branch of the first three-way pipe. 4. The anti-scaling system according to claim 3, wherein the physical descaling device further comprises a third three-way pipe, the first branch of the third three-way pipe communicates with the heat exchange The pipe section is connected, the second branch of the third three-way pipe is connected to the water outlet of the launching water pump, and the first branch and the second branch of the third three-way pipe constitute the second return water path of the launching water pump ; The third branch of the third three-way pipe is connected with the third branch of the first three-way pipe. 5. The anti-scaling system according to claim 3 or 4, characterized in that, the third branch of the second three-way pipe and the third branch of the first three-way pipe of the physical descaling device And the delivery tube constitutes the first return water path of the launching water pump. 6. The anti-scaling system according to claim 3 or 4, characterized in that, the return ball pipe of the physical descaling device, the third branch pipe of the first three-way pipe, and the second three-way pipe The third branch pipe of the second three-way pipe and the second branch pipe of the second three-way pipe constitute the second water intake path of the launching water pump. 7. The anti-scaling system according to claim 4, characterized in that, the serving pipe and the return pipe of the physical descaling device, the first branch pipe and the third branch pipe of the second three-way pipe, At least one valve is provided on the pipelines of the first branch pipe and the third branch pipe of the third three-way pipe, and the valve is an electronic valve or a manual valve. 8. The anti-scaling system according to claim 7, wherein the physical descaling device further comprises a controller, the valves are electronic valves, and the electronic valves are all connected with the controller signal The opening and closing of each electronic valve is controlled by the controller, so that the launching water pump works with different water intake paths and return water paths. 9. The anti-scaling system according to claim 8, characterized in that, the controller of the physical descaling device is an explosion-proof electronic control system. 10. The anti-fouling system according to claim 1, characterized in that a plurality of baffles are arranged in the shell of the heat exchange pipe section along the length direction, and water flow channels are arranged on the baffles, and the The heat exchange tube bundles run through the water flow passages of the baffles, wherein the water flow passages on the adjacent baffles are relatively dislocated or intersected in the axial direction of the tube shell.