Ground source heat pump intelligent control device based on green building and use method

Abstract

The invention relates to the technical field of ground source heat pump control, and discloses a ground source heat pump intelligent control device based on a green building and a using method.The ground source heat pump intelligent control device comprises a heat pump machine body and a water outlet pipe arranged at the top of the heat pump machine body in a communicating mode, a temperature measuring pipe is embedded in the water outlet pipe through a flange, and a temperature measuring assembly is slidably arranged in the temperature measuring pipe in a penetrating mode; the temperature measuring assembly comprises a moving pipe, a threaded cover is arranged at the end of the moving pipe in a threaded penetrating mode, a temperature sensor is embedded in the outer side of the moving pipe, the temperature measuring device further comprises two moving assemblies arranged on the two sides of the temperature measuring assembly respectively and used for supporting the moving pipe to move in the temperature measuring pipe, and a driving assembly arranged in the moving pipe and used for driving the moving assemblies to operate. And the limiting assembly is arranged in the temperature measuring pipe and can enable the moving pipe to drive the temperature sensor to move in the temperature measuring pipe, so that the temperature sensor can perform multi-point water temperature measurement, the use of the sensor is reduced, the detection precision is ensured, and the intelligent control effect on the ground source heat pump is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ground source heat pump control, and in particular to an intelligent control device for a ground source heat pump based on a green building and a use method thereof. Background Art

[0002] Since ground-source heat pumps mainly rely on shallow underground geothermal energy, the greenhouse gas emissions generated during their operation are extremely small. For green buildings, this is an important means to achieve low-carbon and environmental protection goals. During the operation of ground-source heat pumps, effective control must be carried out according to the temperature.

[0003] During the operation of existing ground source heat pumps, in order to ensure effective indoor heating, multiple temperature sensors are installed indoors and inside the heat pump water pipes to measure the temperature, and the internal thermal conduction temperature of the heat pump is adjusted according to the measured temperature. However, in order to ensure accurate measurement of the water temperature inside the water pipe, multiple temperature sensors are installed at different positions inside the water pipe, resulting in a large number of temperature sensors being used. In addition, the control device will receive multiple temperature signals at the same time during the control process, resulting in chaotic temperature measurement and reducing the stability of heat pump control. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the present invention provides an intelligent control device and use method of a ground source heat pump based on a green building, which has the advantages of being able to perform multi-point accurate measurement of the water temperature inside the water pipe of the heat pump through a single temperature sensor, reducing the use of temperature sensors, while reducing the difficulty of signal processing of the control, and improving the control accuracy of the heat pump. It solves the problem that in order to ensure accurate measurement of the water temperature inside the water pipe, multiple temperature sensors are set at different positions inside the water pipe, resulting in a large number of temperature sensors being used.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent control device for a ground source heat pump based on a green building, comprising a heat pump body and a water outlet pipe connected to the top of the heat pump body, wherein a temperature measuring tube is embedded in the water outlet pipe through a flange, and a temperature measuring component is slidably penetrated in the temperature measuring tube, wherein the temperature measuring component comprises a moving tube, a threaded cover is threadedly penetrated at the end of the moving tube, and a temperature sensor is embedded in the outer side of the moving tube, and further comprising:

[0008] The two moving components are respectively arranged on both sides of the temperature measuring component, and the moving components are used to support the moving tube to move in the temperature measuring tube;

[0009] A driving assembly is disposed in the moving tube, and is used to drive the moving assembly to operate;

[0010] A limit assembly is arranged in the temperature measuring tube, and the limit assembly is used to limit the moving distance of the moving tube.

[0011] Preferably, the moving component includes a moving track and a mounting plate, the mounting plate is arranged on the outside of the moving tube, an elastic member is provided between the mounting plate and the outer wall of the moving tube, a driving roller and two symmetrically arranged walking rollers are rotatably penetrated inside the mounting plate, and the moving track transmission is arranged on the outside of the driving roller and the walking roller.

[0012] Preferably, the moving assembly also includes a transmission rod, which is rotatably inserted into the side of the moving tube, and square telescopic rods are fixedly provided at both ends of the transmission rod, a support plate is fixedly provided on the outer wall of the mounting plate, and a vertical rod is rotatably inserted into the interior of the support plate through a sealed bearing, and the vertical rod is fixedly connected to the square telescopic rod, and a driving bevel gear and a transmission bevel gear are respectively fixedly provided at one end of the vertical rod and the driving roller, and the driving bevel gear and the transmission bevel gear are arranged in coordination.

[0013] Preferably, the elastic member is an elastic telescopic rod, and the elastic telescopic rod is fixedly arranged between the moving tube and the mounting plate.

[0014] Preferably, the driving mechanism includes a driving motor, a worm wheel and a worm, the driving motor is fixedly arranged on the inner wall of the moving tube, and the end of the output shaft is fixedly connected to the worm, the worm wheel is fixedly sleeved with the transmission rod and is arranged in cooperation with the worm.

[0015] Preferably, the limiting assembly includes a traction rope, a guide ring is fixedly provided inside the temperature measuring tube, two symmetrically arranged guide rods are fixedly provided on the side of the guide ring, the rod wall sliding sleeve of the guide rod is provided with two symmetrically arranged annular pressure sensors, the external fixed sleeve of the annular pressure sensor is provided with a baffle, the traction rope is fixedly provided between the threaded cover and the baffle, the external sleeve of the traction rope is provided with a spring, and the two ends of the spring are respectively fixedly connected to the baffle and the guide ring.

[0016] Preferably, a mounting groove for placing the temperature sensor is provided on the outer side of the movable tube, and a limiting belt is sleeved on the outer side of the temperature sensor. The limiting belt is screwed and fixed to the movable tube.

[0017] A method for using an intelligent control device for a ground source heat pump based on a green building, the specific implementation method is as follows:

[0018] S1: Before controlling the heat pump, a temperature measuring tube is placed in the water outlet pipe, and the movable tube is allowed to move in the temperature measuring tube;

[0019] S2: Control the driving component to start, so that the driving component drives the moving component to run. At this time, the moving component works stably under the support of the elastic member, and the moving crawler inside the moving component starts to drive. When the moving crawler contacts the inner wall of the moving tube, the moving crawler can drive the entire moving tube to move. The moving tube drives the temperature sensor to move in the temperature measuring tube to measure the temperature at multiple points in the temperature measuring tube.

[0020] S3: Calculate the average temperature based on multiple temperature measurement results, and intelligently control the temperature of the heat pump body in cooperation with an external controller.

[0021] (III) Beneficial effects

[0022] Compared with the prior art, the present invention provides an intelligent control device and use method of a ground source heat pump based on a green building, which has the following beneficial effects:

[0023] 1. The intelligent control device of the ground source heat pump based on green building, through the temperature measuring tube, mobile tube, temperature sensor, mobile component and driving component, can make the mobile tube drive the temperature sensor to move in the temperature measuring tube, so that the temperature sensor can measure the water temperature at multiple points, reduce the use of sensors and ensure the detection accuracy, and improve the intelligent control effect of the ground source heat pump.

[0024] 2. The intelligent control device of the ground source heat pump based on green building can limit the moving distance of the moving pipe through the moving pipe, temperature measuring pipe and limit assembly, so as to ensure that the moving pipe is effectively restricted when moving in the temperature measuring pipe, thereby ensuring the stability of the use of the moving pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of an intelligent control device for a ground source heat pump based on a green building and a method of using the device;

[0026] Figure 2 It is a schematic diagram of the top view of the structure of the mobile tube of the present invention;

[0027] Figure 3 for Figure 1 Internal cross-sectional view of the middle temperature measuring tube and the moving tube;

[0028] Figure 4 for Figure 3 A magnified view of the structure of the local A part;

[0029] Figure 5 for Figure 3 A magnified view of the structure of part B in the middle.

[0030] In the figure: 1 heat pump body, 2 water outlet pipe, 3 temperature measuring tube, 4 moving pipe, 5 temperature sensor, 6 moving crawler, 7 mounting plate, 8 driving roller, 9 walking roller, 10 transmission rod, 11 square telescopic rod, 12 support plate, 13 vertical rod, 14 driving bevel gear, 15 driving bevel gear, 16 elastic telescopic rod, 17 driving motor, 18 worm gear, 19 worm, 20 threaded cover, 21 traction rope, 22 guide ring, 23 guide rod, 24 annular pressure sensor, 25 baffle, 26 spring, 27 limiting belt. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example 1

[0033] See also Figure 1-5 A ground source heat pump intelligent control device based on green building comprises a heat pump body 1 and a water outlet pipe 2 connected to the top of the heat pump body 1, a temperature measuring tube 3 is embedded in the water outlet pipe 2 through a flange, a temperature measuring component is slidably penetrated in the temperature measuring tube 3, the temperature measuring component comprises a moving tube 4, a threaded cover 20 is threadedly penetrated at the end of the moving tube 4, a temperature sensor 5 is embedded in the outer side of the moving tube 4, an installation groove for matching the temperature sensor 5 is opened on the outer side of the moving tube 4, a limiting belt 27 is sleeved on the outer side of the temperature sensor 5, and the limiting belt 27 is screwed and fixed to the moving tube 4.

[0034] Before the heat pump needs to be intelligently controlled, the heat pump is connected to an external controller, and then the temperature measuring tube 3 is embedded and installed in the water outlet pipe 2, so that the water inside the water outlet pipe 2 can flow stably in the temperature measuring tube 3. Before this, the movable tube 4 is set in the temperature measuring tube 3, and the temperature sensor 5 is set on the pipe wall of the movable tube 4, and the position of the temperature sensor 5 is determined by the limiting belt 27, and the temperature sensor 5 can be a wireless sensor. Then, before control, the movable tube 4 can be driven to move inside the temperature measuring tube 3, so that the temperature sensor 5 on the pipe wall of the movable tube 4 can perform multi-point temperature measurement in the temperature measuring tube 3 and calculate the average temperature, and then the temperature signal is transmitted to the external controller, and the heat pump body 1 is accurately controlled by the controller.

[0035] Example 2

[0036] Embodiment 2 is based on Embodiment 1 in order to enable the moving tube 4 to move stably in the temperature measuring tube 3, as shown in FIG. Figure 3-4As shown, two moving components are respectively arranged on both sides of the temperature measuring component. The moving components are used to support the moving tube 4 to move in the temperature measuring tube 3. The moving component includes a moving crawler 6 and a mounting plate 7. The mounting plate 7 is arranged on the outside of the moving tube 4. An elastic member is arranged between the mounting plate 7 and the outer wall of the moving tube 4. The elastic member is an elastic telescopic rod 16. The elastic telescopic rod 16 is fixedly arranged between the moving tube 4 and the mounting plate 7. A driving roller 8 and two symmetrically arranged walking rollers 9 are rotatably penetrated inside the mounting plate 7. The driving roller 8 and the walking rollers 9 are arranged on the driving roller 8 and the walking rollers 9. The moving crawler 6 is arranged to transmit the driving roller 8 and the walking roller 9. On the outside of the walking roller 9, the moving assembly also includes a transmission rod 10, which is rotatably inserted into the side of the moving tube 4, and square telescopic rods 11 are fixedly arranged at both ends of the transmission rod 10, and a support plate 12 is fixedly arranged on the outer wall of the mounting plate 7, and a vertical rod 13 is rotatably inserted into the interior of the support plate 12 through a sealed bearing, and the vertical rod 13 is fixedly connected to the square telescopic rod 11, and a driving bevel gear 14 and a transmission bevel gear 15 are respectively fixedly arranged at one end of the vertical rod 13 and the driving roller 8, and the driving bevel gear 14 and the transmission bevel gear 15 are arranged in coordination;

[0037] The driving assembly is arranged in the moving tube 4. The driving assembly is used to drive the moving assembly to operate. The driving mechanism includes a driving motor 17, a worm gear 18 and a worm 19. The driving motor 17 is fixedly arranged on the inner wall of the moving tube 4, and the end of the output shaft is fixedly connected to the worm 19. The worm gear 18 is fixedly sleeved with the transmission rod 10 and is arranged in cooperation with the worm 19.

[0038] When performing temperature measurement, the driving motor 17 rotates, and the transmission rod 10 rotates with the cooperation of the worm gear 18 and the worm 19. At this time, the transmission rod 10 drives the two square telescopic rods 11 and the vertical rod 13 to rotate under the premise of its own rotation, and then the vertical rod 13 drives the driving roller 8 to rotate through the driving bevel gear 14 and the transmission bevel gear 15. Finally, under the transmission of multiple walking rollers 9 and the driving roller 8, the mobile track 6 can be transmitted. At the same time, under the elastic support of the elastic telescopic rod 16, the mobile track 6 is in close contact with the inner wall of the temperature measuring tube 3. Under the action of friction, the mobile track 6 can drive the mobile tube 4 to move and complete the mobile temperature measurement work of the temperature sensor 5.

[0039] Example 3

[0040] Embodiment 3 is based on Embodiment 2 to limit the moving distance of the moving tube 4. Figure 3 and Figure 5As shown, a limit assembly is arranged in the temperature measuring tube 3, and the limit assembly is used to limit the moving distance of the moving tube 4. The limit assembly includes a traction rope 21, a guide ring 22 is fixedly provided inside the temperature measuring tube 3, and two symmetrically arranged guide rods 23 are fixedly provided on the side of the guide ring 22. The rod wall sliding sleeve of the guide rod 23 is provided with two symmetrically arranged annular pressure sensors 24, and the external fixed sleeve of the annular pressure sensor 24 is provided with a baffle 25. The traction rope 21 is fixedly arranged between the threaded cover 20 and the baffle 25, and the external sleeve of the traction rope 21 is provided with a spring 26, and the two ends of the spring 26 are respectively fixedly connected to the baffle 25 and the guide ring 22.

[0041] During the movement of the moving tube 4, since the length of the traction rope 21 is fixed, the moving distance of the moving tube 4 can be fixed at this time. When the moving tube 4 moves to the end, the traction rope 21 pulls the baffle 25, so that the baffle 25 drives the pressure sensor 24 to slide along the guide rod 23 and squeeze the contact guide ring 22. At this time, the pressure sensor 24 generates a pressure signal and transmits it to the drive motor 17, so that the drive motor 17 flips and causes the moving tube 4 to move in the opposite direction and return to its position, so that the temperature detection work can be carried out continuously and stably.

[0042] A method for using an intelligent control device for a ground source heat pump based on a green building, the specific implementation method is as follows:

[0043] S1: Before controlling the heat pump, the temperature measuring tube 3 is arranged in the water outlet pipe 2, and the movable tube 4 is allowed to move in the temperature measuring tube 3;

[0044] S2: Control the driving component to start, so that the driving component drives the moving component to run. At this time, the moving component works stably under the support of the elastic member, and the moving track 6 inside the moving component starts to drive. When the moving track 6 contacts the inner wall of the moving tube 4, the moving track 6 can drive the entire moving tube 4 to move, and the moving tube 4 drives the temperature sensor 5 to move in the temperature measuring tube 3 to measure the temperature at multiple points in the temperature measuring tube 3;

[0045] S3: Calculate the average temperature according to the multiple temperature measurement results, and intelligently control the temperature of the heat pump body 1 in cooperation with an external controller.

[0046] It should be noted that the term "comprises" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article, or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent control device for a ground source heat pump based on a green building, comprising a heat pump body (1) and a water outlet pipe (2) connected to the top of the heat pump body (1), characterized in that: A temperature measuring tube (3) is embedded in the water outlet pipe (2) via a flange, a temperature measuring assembly is slidably penetrated in the temperature measuring tube (3), the temperature measuring assembly comprises a moving tube (4), a threaded cover (20) is threadedly penetrated at the end of the moving tube (4), a temperature sensor (5) is embedded in the outer side of the moving tube (4), and further comprises: The two moving components are respectively arranged on both sides of the temperature measuring component, and the moving components are used to support the moving tube (4) to move inside the temperature measuring tube (3); A driving assembly is arranged in the moving tube (4), and is used to drive the moving assembly to operate; A limit assembly is arranged in the temperature measuring tube (3), and the limit assembly is used to limit the moving distance of the moving tube (4).

2. According to claim 1, a ground source heat pump intelligent control device based on green building is characterized in that: The moving assembly comprises a moving crawler (6) and a mounting plate (7), wherein the mounting plate (7) is arranged on the outer side of the moving tube (4), an elastic member is arranged between the mounting plate (7) and the outer wall of the moving tube (4), a driving roller (8) and two symmetrically arranged walking rollers (9) are rotatably penetrated inside the mounting plate (7), and the transmission of the moving crawler (6) is arranged on the outer side of the driving roller (8) and the walking roller (9).

3. According to claim 2, a ground source heat pump intelligent control device based on green building is characterized in that: The moving assembly further comprises a transmission rod (10), the transmission rod (10) being rotatably inserted into the side of the moving tube (4), square telescopic rods (11) being fixedly provided at both ends of the transmission rod (10), a support plate (12) being fixedly provided on the outer wall of the mounting plate (7), a vertical rod (13) being rotatably inserted into the interior of the support plate (12) via a sealed bearing, the vertical rod (13) being fixedly connected to the square telescopic rod (11), a driving bevel gear (14) and a transmission bevel gear (15) being fixedly provided at one end of the vertical rod (13) and the driving roller (8), respectively, and the driving bevel gear (14) and the transmission bevel gear (15) are arranged in coordination with each other.

4. According to claim 2, the intelligent control device for ground source heat pump based on green building is characterized by: The elastic member is an elastic telescopic rod (16), and the elastic telescopic rod (16) is fixedly arranged between the moving tube (4) and the mounting plate (7).

5. According to claim 1, the intelligent control device for ground source heat pump based on green building is characterized by: The driving mechanism comprises a driving motor (17), a worm wheel (18) and a worm (19); the driving motor (17) is fixedly arranged on the inner wall of the moving tube (4), and the end of the output shaft is fixedly connected to the worm (19); the worm wheel (18) is fixedly sleeved with the transmission rod (10) and is arranged in cooperation with the worm (19).

6. The intelligent control device for ground source heat pump based on green building according to claim 1 is characterized by: The limit assembly comprises a traction rope (21), a guide ring (22) is fixedly provided inside the temperature measuring tube (3), two symmetrically arranged guide rods (23) are fixedly provided on the side of the guide ring (22), two symmetrically arranged annular pressure sensors (24) are provided on the rod wall sliding sleeve of the guide rod (23), a baffle (25) is fixedly provided on the external sleeve of the annular pressure sensor (24), the traction rope (21) is fixedly provided between the threaded cover (20) and the baffle (25), a spring (26) is provided on the external sleeve of the traction rope (21), and the two ends of the spring (26) are respectively fixedly connected to the baffle (25) and the guide ring (22).

7. The intelligent control device for ground source heat pump based on green building according to claim 1 is characterized by: The outer side of the movable tube (4) is provided with a mounting groove for placing the temperature sensor (5), and the outer side of the temperature sensor (5) is sleeved with a limiting belt (27), and the limiting belt (27) is screwed and fixed to the movable tube (4).

8. A method for using an intelligent control device for a ground source heat pump based on a green building, characterized in that: The intelligent control device for a ground source heat pump comprising any one of claims 1 to 7 is specifically implemented as follows: S1: before controlling the heat pump, a temperature measuring tube (3) is arranged in the water outlet pipe (2), and a movable tube (4) is allowed to move in the temperature measuring tube (3); S2: Control the drive assembly to start, so that the drive assembly drives the moving assembly to run. At this time, the moving assembly works stably under the support of the elastic member, and the moving track (6) inside the moving assembly starts to transmit. When the moving track (6) contacts the inner wall of the moving tube (4), the moving track (6) can drive the entire moving tube (4) to move. The moving tube (4) drives the temperature sensor (5) to move inside the temperature measuring tube (3) to measure the temperature at multiple points inside the temperature measuring tube (3); S3: Calculate the average temperature value based on the multiple temperature measurement results, and cooperate with the external controller to intelligently control the temperature of the heat pump body (1).

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