A mixing device for the development and utilization of medium-deep geothermal energy

Abstract

This invention relates to a mixing device for the development and utilization of medium-deep geothermal energy, belonging to the field of water source heat pump technology. It solves the problems of difficult scale removal and poor mixing efficiency in existing technologies. The device includes a shell and a shell cover fixedly connected to the shell. Inside the shell, there are inner tanks. Inside the inner tanks, there are stirring tanks and water storage tanks. The top of the stirring tank is fixedly connected to a cold water inlet pipe, a hot water inlet pipe, and a cleaning pipe. Filter balls are installed at the bottom of both the cold water inlet pipe and the hot water inlet pipe. A connecting pipe is fixedly connected between the stirring tank and the water storage tank. Through the arrangement of the stirring component, conveying component, cleaning component, etc., on the one hand, the impeller and blades ensure sufficient contact between the hot and cold water in the mixing tank, thereby controlling the water temperature; on the other hand, the rotation part makes the movement of the cleaning component continuous and stable, scraping away scale inside the water storage tank. The cleaning effect is good, effectively reducing the cost of use and maintenance.

Description

Technical Field

[0001] This invention relates to the field of water source heat pump technology, and in particular to a mixing device for the development and utilization of medium-deep geothermal energy. Background Technology

[0002] Thermal energy is the heat generated and stored on Earth. It is cost-effective, reliable, sustainable, and environmentally friendly, but historically it has been limited to the vicinity of tectonic plate boundaries. Recent technological advancements have greatly expanded the range and size of viable resources, especially for applications such as home heating, providing potential for widespread development.

[0003] In recent years, geothermal heat pump heating systems have been widely used. They can utilize the heat from geothermal energy for heating, especially the development and utilization of medium and deep geothermal energy. However, due to the large amount of heat from medium and deep geothermal energy, the water temperature is too high to be used directly for heating. Therefore, in actual use, it is necessary to mix cold water to lower its temperature so that it can be used at a usable temperature. To achieve this, a mixing device is required.

[0004] The prior art, disclosed in CN216693720U, discloses a mixing device for the development and utilization of medium-deep geothermal energy. This utility model includes a main body, comprising an outer shell and a motor fixing assembly. The motor fixing assembly is fixedly connected to the outer side of the top wall of the outer shell, and the top wall of the outer shell has a cold water inlet pipe and a hot water inlet pipe fixedly connected thereto. The bottom wall of the outer shell has a water outlet pipe fixedly connected thereto. A stirring section is located at the upper inner side of the outer shell and is movably connected to the motor fixing assembly. A temperature regulating section is located below the stirring section and includes an annular plate and a temperature regulating assembly. The annular plate is fixedly connected to the inner wall of the outer shell, and its bottom wall has multiple recesses. Two sets of temperature regulating assemblies are fixedly connected to the top wall of the annular plate. A transfer section includes a fixed plate, a cylindrical fixed seat, and a transfer assembly. The fixed plate is fixedly connected to the lower end of the inner wall of the outer shell, and the lower end of the cylindrical fixed seat penetrates the fixed plate and is fixedly connected to it. The transfer assembly is detachably connected to the annular plate, and its lower end is connected to the cylindrical fixed seat.

[0005] However, the water inlets connected to the mixing device are mostly untreated hard water, which contains more minerals. With long-term use, scale is easily formed inside the water storage device. If the scale is not cleaned in time, it can easily cause blockage of the HVAC pipes. In addition, the device is located in the middle and deep layers and is not easy to disassemble and remove, so there is a problem of scale not being easy to clean. Furthermore, the use of a single impeller for mixing results in uneven mixing. Hot and cold water cannot be mixed sufficiently, thus hindering water temperature control and resulting in poor mixing efficiency.

[0006] Furthermore, the device lacks a filter. Except during the cold season, households rarely use HVAC systems, leaving the device idle. When it is needed, scale buildup at the inlet can easily damage the impeller or cause impurities to enter the mixing chamber and become unable to be discharged, resulting in poor filtration performance. Summary of the Invention

[0007] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a mixing device for the development and utilization of medium-deep geothermal energy, which has the effects of improving the water storage and cleaning effect, reducing manufacturing costs, enhancing the stability of the mixing device, and improving the filtration performance of the mixing device.

[0008] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0009] A mixing device for the development and utilization of medium-deep geothermal energy includes a shell and a shell cover fixedly connected to the shell. An inner tank is installed inside the shell, and a mixing tank and a storage tank are located inside the inner tank. A cold water inlet pipe, a hot water inlet pipe, and a cleaning pipe are fixedly connected to the top of the mixing tank. Filter balls are installed at the bottom of both the cold and hot water inlet pipes. A connecting pipe is fixedly connected between the mixing tank and the storage tank. A water pressure valve is installed inside the connecting pipe. When the water pressure in the mixing tank reaches a set pressure value, the water pressure valve opens. The bottom of the storage tank has a circular hole and a through hole. A water outlet pipe is nested in the circular hole, and a waste discharge pipe is nested in the through hole. An electrically controlled valve is installed in the middle of the waste discharge pipe. The device also includes:

[0010] The stirring assembly is installed inside the inner tank and has a conveying part and a stirring part. The conveying part uses the motor force of the motor to drive the stirring part to rotate through the conveying wheel and bevel gear to achieve the effect of mixing water.

[0011] A conveying assembly is installed between a mixing tank and a storage tank. It has a rotating part and a limit control. The rotating part is connected to the conveying part to receive energy generated by the motor and drives the limit control to move by rotating itself. The limit control consists of a rack, a spring rod and two locking blocks. The two locking blocks are installed at both ends of the rack by the spring rod to limit the movement.

[0012] A cleaning component is installed inside the water storage tank. The cleaning component consists of a main shaft, four evenly arranged movable shafts and guide blocks, and a scraper. The main shaft is coaxially and slidably installed inside the water storage tank and is connected to a limit control via a rotating part. When the main shaft rotates, it drives the scraper to move along the inner wall of the water storage tank to scrape off the scale on the inner wall.

[0013] By adopting the above technical solution, the motor energy of the electric motor is used to achieve full stirring in the mixing device, and the water temperature is made uniform. The use of stirring group, conveying component and cleaning component effectively reduces the cost of use and improves the work efficiency.

[0014] In a preferred embodiment, the present invention can be further configured as follows: the output end of the motor has a transmission rod, an impeller is fixedly sleeved on one side of the transmission rod, a plurality of spiral blades are fixed on the outside of the impeller, the transmission part includes a transmission shaft made of metal, and another impeller is fixedly sleeved on one end of the transmission shaft.

[0015] By adopting the above technical solution, cold and hot water with large temperature differences in the mixing tank can be thoroughly mixed evenly without overheating or overcooling.

[0016] In a preferred embodiment, the present invention can be further configured as follows: a first conveyor wheel is fixedly sleeved on the outer circumference of the conveyor rod; a second conveyor wheel is rotatably installed inside the housing; a conveyor belt is sleeved between the first and second conveyor wheels; a first connecting rod is fixedly connected to the second conveyor wheel; a first bevel gear is fixedly connected to the bottom end of the first connecting rod; a second connecting rod and a conveyor shaft are rotatably installed inside the mixing tank; a third bevel gear is fixedly connected to the bottom and top of the second connecting rod; a second bevel gear is fixedly connected to one side of the conveyor shaft; an impeller is fixedly connected to one end of the conveyor shaft; the first bevel gear meshes with the second bevel gear; the second bevel gear meshes with the third bevel gear; a fixing block is fixedly installed inside the housing; and the first, second, and third bevel gears are all rotatably connected inside the fixing block.

[0017] By adopting the above technical solution, the motor can be transmitted to the cleaning component through the transmission component, thereby achieving the cleaning of the inner wall.

[0018] In a preferred embodiment, the present invention may be further configured such that: a bevel gear four is fixedly connected to the other end of the connecting rod two, a bevel gear five is meshed on the bevel gear four, a worm is fixedly connected to one side of the bevel gear five, and a turbine is meshed at one end of the worm.

[0019] By adopting the above technical solution, the direction of force transmission is changed, thereby improving the energy conversion rate.

[0020] In a preferred embodiment, the present invention can be further configured such that the limiting control includes a fixed shaft, a spur gear, a fixed plate, a spring rod, a mounting base, and a locking block, wherein the spur gear is fixedly connected to the turbine on the fixed shaft;

[0021] The fixed plate has a rotating fixed shaft inside, and the top of the water storage tank is fixedly connected to a mounting base. A rack is slidably mounted on one side of the mounting base. The spur gear meshes with the rack. Two symmetrically arranged spring rods are fixedly connected to both ends of the rack. The two spring rods are movably hinged to a locking block.

[0022] By adopting the above technical solution, limit rod one and limit rod two work together to restrict the gear from rotating to the upper and lower boundaries of the rack. Due to the setting of the spring rod and the locking block, the spur gear rotates freely, that is, the cleaning component is not activated.

[0023] In a preferred embodiment, the present invention can be further configured such that: a mounting hole is provided on one side of the mounting base, two limiting rods are fixedly nested inside the mounting hole, and a limiting rod is fixedly connected to one side of the rack, the length of the limiting rod exceeds the shortest distance between the limiting rod and the rack.

[0024] By adopting the above technical solution, the setting of the limiting rod ensures that the travel of the cleaning component is within the controllable distance of the two limiting rods.

[0025] In a preferred embodiment, the present invention can be further configured such that: a straight groove is provided on one side of the mounting base, the rack is slidably connected inside the straight groove, both locking blocks are provided with symmetrically arranged straight holes, and one end of the spring rod is movably hinged inside the straight hole.

[0026] By adopting the above technical solution, it is easy for the cleaning device to clean the inside of the water storage tank and remove the adsorbed scale inside the water storage tank.

[0027] In a preferred embodiment, the present invention may be further configured such that: a retraction block is fixedly connected to the back of the rack, the top of the main shaft is fixedly connected to the bottom of the retraction block, one end of the movable shaft is movably hinged to the outer circumferential surface of the main shaft, the other end of the movable shaft is fixedly connected to one side of the guide block, and the guide block is fixedly connected to the inner circumferential surface of the scraper.

[0028] By adopting the above technical solution, it is easy to fix and install the scraper, thereby removing scale from the inner wall of the water storage tank.

[0029] A method for mixing water in the development and utilization of medium-deep geothermal energy, employing a mixing water device as described above, includes the following steps:

[0030] S1. Open the cleaning pipe, close the cold water inlet pipe and the hot water inlet pipe, start the motor, and the cleaning fluid enters the mixing tank in the inner tank. The stirring component rotates to clean the inside of the mixing tank.

[0031] S2. When the cleaning fluid reaches the set pressure value of the water pressure valve in the connecting pipe, the water pressure valve opens and the cleaning fluid is injected into the water storage tank. The stirring component rotates, driving the conveying component and the cleaning component to drive the main shaft and scraper to remove scale from the water storage tank. Due to the limit control setting, the motor drive rod rotates in the opposite direction, which can repeatedly clean the inner wall of the water storage tank. The outlet pipe is closed, and the waste liquid after cleaning is discharged into the water storage tank through the waste discharge pipe of the electrically controlled valve.

[0032] S3. Close the cleaning pipe and start the mixing device. Cold water and hot water enter the cold inlet pipe and hot inlet pipe respectively. The water is thoroughly stirred in the mixing tank and the water temperature is uniform. When the water pressure valve in the connecting pipe reaches the set pressure value, open the electric control valve and warm water enters the mixing tank. Due to the geothermal energy and the inner tank, the water temperature is kept warm. At this time, the waste pipe is closed. When it is necessary to turn on the HVAC device at one end of the mixing device, open the outlet pipe and warm water enters the HVAC pipe.

[0033] In summary, the present invention has at least one of the following beneficial technical effects:

[0034] 1. By setting up structures such as stirring components, conveying components, and cleaning components, on the one hand, the impeller and blades ensure that the hot and cold water in the mixing tank are in full contact, thereby controlling the water temperature. On the other hand, the rotating part makes the movement of the cleaning component continuous and stable, moving up and down inside the water tank to scrape off the scale, resulting in good cleaning effect and effectively reducing the cost of use and maintenance.

[0035] 2. By setting up structures such as waste discharge pipes and electrically controlled valves, for cleaning inside the mixing device, cleaning fluid is injected into the mixing device, the drainage device is started, the outlet pipe is closed, and the waste discharge pipe is opened, thereby removing scale buildup inside the tank and improving the safety and service life of the equipment.

[0036] 3. By using bevel gears, impellers, and conveyor rods, a motor drives one impeller to rotate, and a conveyor drives another impeller to rotate, which fully stirs the water in the mixing tank, improving the mixing effect and motor utilization.

[0037] 4. By setting up structures such as cold water pipes, hot water pipes, filter balls, and disassembly rods, filter balls are installed at the outlets of the cold water pipes and hot water pipes respectively. When the heating water device is started, it can filter the scale that has accumulated in the inlet pipe for a long time. Using filter balls to filter scale can effectively filter the scale and prevent scale from entering the mixing section, thus ensuring the safe operation of the mixing device. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the overall structure of the invention;

[0039] Figure 2 This is a cross-sectional view of the invention as a whole;

[0040] Figure 3 This is a partial structural diagram of Embodiment 1 with the shell and inner liner removed;

[0041] Figure 4 This is a schematic diagram of the main internal structure;

[0042] Figure 5 yes Figure 4 Enlarged view of mark A in the image;

[0043] Figure 6 This is a partial schematic diagram highlighting the stirring assembly in Embodiment 1;

[0044] Figure 7 yes Figure 6 Enlarged view of mark B in the image;

[0045] Figure 8 This is a partial schematic diagram highlighting the transmission component in Embodiment 2;

[0046] Figure 9 yes Figure 8 Enlarged view of mark C in the image;

[0047] Figure 10 This is a partial schematic diagram highlighting the cleaning components in Embodiment 3.

[0048] In the diagram, 1. Shell; 2. Shell cover; 3. Inner liner; 4. Water outlet pipe; 5. Motor; 6. Mixing tank; 7. Agitator assembly; 701. Transmission wheel one; 702. Transmission wheel two; 703. Conveyor belt; 704. Connecting rod one; 705. Connecting rod two; 706. Bevel gear one; 707. Bevel gear two; 708. Bevel gear three; 709. Bevel gear four; 710. Bevel gear five; 711. Conveyor... 712. Shaft; 713. Blade; 714. Impeller; 8. Conveying assembly; 805. Worm gear; 806. Turbine; 807. Mounting base; 808. Rack; 809. Spur gear; 8000. Locking block; 8001. Spring rod; 801. Fixed shaft; 802. Limiting rod one; 810. Limiting rod two; 9. Cleaning assembly; 901. Scraper; 902. Main shaft; 903. Movable shaft; 904. Guide block; 11. Hot water inlet pipe; 12. Connecting pipe; 13. Water storage tank; 14. Waste discharge pipe; 15. Electrically controlled valve; 16. Filter ball; 17. Cleaning pipe. Detailed Implementation

[0049] The present invention will be further described in detail below with reference to the accompanying drawings.

[0050] Example 1:

[0051] Reference Figure 1-3This invention discloses a mixing device for the development and utilization of medium-deep geothermal energy, comprising a shell 1 and a shell cover 2 fixedly connected to the shell 1. An inner tank 3 is installed inside the shell 1, and a mixing tank 6 and a storage tank 13 are disposed inside the inner tank 3. A cold water inlet pipe, a hot water inlet pipe 11, and a cleaning pipe 17 are fixedly connected to the top of the mixing tank. Filter balls 16 are installed at the bottom of both the cold water inlet pipe and the hot water inlet pipe 11. A connecting pipe 12 is fixedly connected between the mixing tank and the storage tank 13, and a water pressure valve is installed inside the connecting pipe 12. When the water pressure in the mixing tank reaches the set pressure value, the water pressure valve opens. The bottom of the water storage tank 13 has a round hole and a through hole. The round hole is fitted with a water outlet pipe 4, and the through hole is fitted with a waste discharge pipe 14. An electrically controlled valve 15 is installed in the middle of the waste discharge pipe 14. Through the setting of structures such as bevel gear, impeller 713 and conveyor rod 714, the motor 5 drives one impeller 713 to rotate, and the conveyor drives another impeller 713 to rotate. When mixing water in the mixing tank 6, the mixture is fully stirred, improving the mixing effect of the equipment and the utilization rate of the motor 5.

[0052] Reference Figure 6 , 7 The stirring assembly 7 is installed inside the inner tank 3. It has a conveying part and a stirring part. The conveying part uses the motor force of the motor 5 to drive the stirring part to rotate through the conveying wheel and bevel gear to achieve the effect of mixing water.

[0053] Reference Figure 6 , 7 The output end of the motor 5 has a transmission rod 714, and an impeller 713 is fixedly sleeved on one side of the transmission rod 714. Several spiral blades 712 are fixed on the outside of the impeller 713. The transmission part includes a transmission shaft 711 made of metal, and another impeller 713 is fixedly sleeved on one end of the transmission shaft 711.

[0054] Reference Figure 7A first conveyor wheel 701 is fixedly sleeved on the outer circumference of the conveyor rod 714. A second conveyor wheel 702 is rotatably installed inside the housing 1. A conveyor belt 703 is sleeved between the first conveyor wheel 701 and the second conveyor wheel 702. A first connecting rod 704 is fixedly connected to the second conveyor wheel 702. A first bevel gear 706 is fixedly connected to the bottom end of the first connecting rod 704. A second connecting rod 705 and a conveyor shaft 711 are rotatably installed inside the mixing tank 6. A third bevel gear 708 is fixedly connected to the bottom and top of the second connecting rod 705. The conveyor shaft 71... A bevel gear 707 is fixedly connected to one side of housing 1, and an impeller 713 is fixedly connected to one end of the transmission shaft 711. A bevel gear 706 meshes with a bevel gear 707, and a bevel gear 707 meshes with a bevel gear 708. A fixing block is fixedly installed inside housing 1. A bevel gear 706, a bevel gear 707, and a bevel gear 708 are all rotatably connected inside the fixing block. By adopting the above technical solution, the motor 5 can be transmitted to the cleaning component 9 through the transmission component 8, thereby achieving the cleaning of the inner wall.

[0055] The specific implementation process of this invention is as follows: Motor 5 starts, and the transmission rod 714 at the output end of motor 5 and the transmission wheel 701 sleeved on the outer circumference rotate. The impeller 713 and blade 712 fixedly connected to the bottom end of the transmission rod 714 rotate due to the rotation of the transmission rod 714, realizing stirring in the mixing tank 6. Through the transmission belt 703, the transfer wheel 2 rotates. The connecting rod fixedly connected to the bottom of the transmission wheel 2 702 and the bevel gear 706 fixedly connected to the end of the connecting rod 704 also rotate. The bevel gear 707 meshing with the bevel gear and the transmission shaft 711 fixedly connected to one side of the bevel gear 707 rotate, realizing the rotation of the other impeller 713 and blade 712, stirring together. The bevel gear 708 meshing with the bevel gear 2 707 and the bevel gear 709 fixedly connected to the bottom of the bevel gear 3 708 receive the transmitted force from the motor 5, driving the bevel gear 710 and the worm gear 801 on one side of the bevel gear 5 710 to rotate. The other end of the worm gear 801 is rotatably connected to the inside of the inner liner 3.

[0056] Example 2:

[0057] Reference Figure 9 , 10 The conveying assembly 8 is installed between the mixing tank 6 and the storage tank 13. It has a rotating part and a limit control. The rotating part is connected to the conveying part to receive energy generated by the motor 5 and drives the limit control to move by its own rotation. The limit control consists of a rack 804, a spring rod 807, and two locking blocks 806. The two locking blocks 806 are installed at both ends of the rack 804 through the spring rod 807 to perform a limiting function.

[0058] Reference Figure 7The other end of the connecting rod 2 705 is fixedly connected to the bevel gear 4 709, the bevel gear 4 709 is meshed with the bevel gear 5 710, the bevel gear 5 710 is fixedly connected to one side of the bevel gear 5 710, and the worm gear 801 is meshed with the turbine 802 at one end.

[0059] refer to Figure 8 , 9 The limit control includes a fixed shaft 808, a spur gear 805, a fixed plate, a spring rod 807, a mounting base 803, and a locking block 806. The spur gear 805 and the turbine 802 are fixedly connected to the fixed shaft 808. The fixed shaft 808 is rotatably mounted inside the fixed plate. The top of the water tank 13 is fixedly connected to the mounting base 803. A rack 804 is slidably mounted on one side of the mounting base 803. The spur gear 805 and the rack 804 are meshed together. Two symmetrically arranged spring rods 807 are fixedly connected to both ends of the rack 804. The two spring rods 807 are movably hinged to the locking block 806.

[0060] Reference Figure 9 The mounting base 803 has a mounting hole on one side, and two limiting rods 809 are fixedly nested inside the mounting hole. A limiting rod 810 is fixedly connected to one side of the rack 804. The length of the limiting rod 810 exceeds the shortest distance between the limiting rod 809 and the rack 804.

[0061] The specific implementation process of this invention is as follows: The worm gear 802 and the worm 801 are meshed and connected in the middle, which drives the spur gear 805, which is mounted on the fixed shaft 808 and the worm gear 802, to rotate. The rack 804 is meshed and connected with the gear. The rotation of the spur gear 805 drives the rack 804 to move up and down. Due to the setting of the spring rod 807 and the locking block 806, after the spur gear 805 receives the continuous force transmitted by the motor 5, it will be locked by the locking block 806 after moving to the boundary of the rack 804. Due to the setting of the spring rod 807, the first limiting rod 809 and the second limiting rod 810, the spur gear 805 will not stop rotating, thus playing a limiting role.

[0062] Example 3: Start the motor to drive the stirring assembly to rotate, thereby cleaning the inside of the mixing tank;

[0063] Reference Figure 10The cleaning component 9 is installed inside the water storage tank 13. The cleaning component 9 consists of a main shaft 902, four evenly arranged movable shafts 903, guide blocks 904, and a scraper 901. The main shaft 902 is coaxially and slidably installed inside the water storage tank 13 and is connected to the limit control through the rotation part. When the main shaft 902 rotates, it drives the scraper 901 to move along the inner wall of the water storage tank 13 to scrape off the scale inside. Through the arrangement of the stirring component 7, the conveying component 8, the cleaning component 9, etc., on the one hand, the impeller 713 and the blades make the hot and cold water in the mixing tank 6 fully contacted, thereby controlling the water temperature. On the other hand, the rotation part makes the movement of the cleaning component 9 continuous and stable, moving up and down inside the water storage tank 13 to scrape off the scale. The cleaning effect is good and the cost of use and maintenance is effectively reduced.

[0064] Reference Figure 10 A retraction block is fixedly connected to the back of the rack 804, the top of the main shaft 902 is fixedly connected to the bottom of the retraction block, one end of the movable shaft 903 is movably hinged to the outer circumferential surface of the main shaft 902, and the other end of the movable shaft 903 is fixedly connected to one side of the guide block 904. The guide block 904 is fixedly connected to the inner circumferential surface of the scraper 901.

[0065] Reference Figure 10 A straight groove is provided on one side of the mounting base 803, and the rack 804 is slidably connected inside the straight groove. Both locking blocks 806 are provided with symmetrically arranged straight holes, and one end of the spring rod 807 is movably hinged inside the straight hole.

[0066] The specific implementation process of this invention is as follows: The back of the rack 804 is fixedly connected to the retraction block, and the retraction block is fixedly connected to the main shaft 902. The rack 804 moves up and down in the straight groove, driving the main shaft 902 and the scraper 901 to clean the inner wall. It moves up and down inside the water storage tank 13 to scrape off the scale, which has a good cleaning effect and effectively reduces the cost of use and maintenance.

[0067] A method for mixing water in the development and utilization of medium-deep geothermal energy, employing a mixing water device as described above, includes the following steps:

[0068] S1. Open the cleaning pipe 17, close the cold water inlet pipe and the hot water inlet pipe 11, start the motor 5, and the cleaning fluid enters the mixing tank 6 in the inner tank 3. The stirring component 7 rotates to clean the mixing tank 6.

[0069] S2. When the cleaning fluid reaches the set pressure value of the water pressure valve in the connecting pipe 12, the water pressure valve opens and the cleaning fluid is injected into the water storage tank 13. The stirring component 7 rotates, driving the conveying component 8 and the cleaning component 9 to drive the main shaft 902 and the scraper 901 to remove scale from the water storage tank 13. Due to the limit control setting, the drive rod of the motor 5 rotates in the opposite direction, so that the inner wall of the water storage tank 13 can be cleaned repeatedly. The water outlet pipe 4 is closed, and the waste liquid after cleaning is discharged into the water storage tank 13 through the waste discharge pipe 14 via the electric control valve 15.

[0070] S3. Close the cleaning pipe 17, start the mixing device, and cold water and hot water enter the cold inlet pipe and hot inlet pipe 11 respectively. The water in the mixing tank 6 is fully stirred and the water temperature is uniform. When the water pressure valve in the connecting pipe 12 reaches the set pressure value, open the electric control valve 15 and warm water enters the mixing tank 6. Due to the setting of geothermal energy and inner tank 3, the water temperature is kept warm. At this time, the waste drain pipe 14 is closed. When it is necessary to turn on the heating and ventilation device at one end of the mixing device, open the outlet pipe 4 and warm water enters the heating and ventilation pipe.

[0071] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A mixing device for the development and utilization of medium-deep geothermal energy, comprising a shell (1) and a shell cover (2) fixedly connected to the shell (1), wherein an inner liner (3) is installed inside the shell (1), and a mixing tank (6) and a water storage tank (13) are provided inside the inner liner (3), wherein a cold water inlet pipe, a hot water inlet pipe (11) and a cleaning pipe (17) are fixedly connected to the top of the mixing tank (6), and filter balls (16) are installed at the bottom of both the cold water inlet pipe and the hot water inlet pipe (11). A connecting pipe (12) is fixedly connected between the mixing tank (6) and the storage tank (13). A water pressure valve is provided inside the connecting pipe (12). When the water pressure in the mixing tank (6) reaches the set pressure value, the water pressure valve opens. A round hole and a through hole are provided at the bottom of the storage tank (13). A water outlet pipe (4) is nested in the round hole, and a waste discharge pipe (14) is nested in the through hole. An electrically controlled valve (15) is installed in the middle of the waste discharge pipe (14). Also includes: The stirring assembly (7) is installed inside the inner liner (3) and has a conveying part and a stirring part. The conveying part uses the motor force of the motor (5), the conveying wheel and the bevel gear to drive the stirring part to rotate and play a role in mixing water. The conveying part includes a conveying shaft (711) made of metal. A conveying assembly (8) is installed between a mixing tank (6) and a storage tank (13). It has a rotating part and a limit control. The rotating part is connected to the conveying part to receive energy generated by the motor (5) and drive the limit control to move by rotating itself. A connecting rod (705) and a conveying shaft (711) are rotatably installed in the mixing tank (6). A bevel gear (709) is fixedly connected to the other end of the connecting rod (705). A bevel gear (710) is meshed on the bevel gear (709). A worm gear (801) is fixedly connected to one side of the bevel gear (710). A turbine gear (802) is meshed on one end of the worm gear (801). The limiting control includes a fixed shaft (808), a spur gear (805), a fixed plate, a spring rod (807), a mounting base (803), a rack (804), and locking blocks (806). The spur gear (805) is fixedly connected to the turbine (802) on the fixed shaft (808). The two locking blocks (806) are mounted on both ends of the rack (804) via the spring rod (807) to limit the movement. The fixed plate has a rotating fixed shaft (808) inside. The top of the water tank (13) is fixedly connected to a mounting base (803). A rack (804) is slidably mounted on one side of the mounting base (803). The spur gear (805) meshes with the rack (804). Two symmetrically arranged spring rods (807) are fixedly connected to both ends of the rack (804). The two spring rods (807) are movably hinged to a locking block (806). Cleaning component (9) is installed inside the water storage tank (13). The cleaning component (9) consists of a main shaft (902), four evenly arranged movable shafts (903), a guide block (904), and a scraper (901). The main shaft (902) is coaxially slidably installed inside the water storage tank (13). When the main shaft (902) rotates, it drives the scraper (901) to move along the inner wall of the water storage tank (13) to scrape off the scale on the inner wall.

Images