Heat energy control valve for central heating system

Abstract

The invention relates to the technical field of heat energy control valves, and discloses a heat energy control valve for a central heating system, which comprises a shell and a V-shaped ball valve, a wireless data transmission terminal main body and a driving motor are arranged in an upper cavity of the shell, and an output shaft of the driving motor extends into a lower cavity of the shell and is axially connected with a main shaft gear; a shaft gear in meshed connection with the main shaft gear is further arranged in the lower cavity, and a connecting shaft penetrates through a shaft body part in the shaft gear; a valve rod in the V-shaped ball valve is axially connected with the connecting shaft; a valve front temperature and pressure integrated sensor is installed on a valve front pipeline of the V-shaped ball valve, and a valve rear temperature and pressure integrated sensor is installed on a valve rear pipeline of the V-shaped ball valve. The 4G wireless communication technology is adopted, the functions of detecting the physical quantities such as the pressure, the temperature and the flow of the heat supply pipeline are integrated, the problems that the wiring work amount is large, construction is tedious and the system integration complexity is high in the heat supply system transformation process are solved, the overall transformation efficiency is improved, the transformation cost is reduced, and meanwhile the reliability of the heat supply system is improved.

Description

Technical Field

[0001] This invention relates to the field of thermal energy control valve technology, and more specifically, to a thermal energy control valve for a centralized heating system. Background Technology

[0002] Currently, most thermal control valves used in domestic centralized heating systems are wired control systems, and they typically only monitor physical quantities (such as pressure or temperature) of a single heating pipeline. Upgrading existing heating systems presents challenges due to the large amount of wiring work and cumbersome construction. Furthermore, because existing valves have limited functionality, additional sensors such as flow sensors are often required to obtain more pipeline parameters, leading to high system integration complexity and difficulties in data acquisition, thus hindering the intelligent upgrading and energy efficiency management of the system.

[0003] Therefore, it is necessary to design a thermal energy control valve to solve the above-mentioned technical problems. Summary of the Invention

[0004] In view of this, the present invention proposes a thermal energy control valve for centralized heating systems, which can solve the problems of large wiring workload, complicated construction and high system integration complexity in the process of heating system renovation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A thermal energy control valve for a centralized heating system includes a closed housing and a V-shaped ball valve located below the housing. The inner cavity of the housing is divided into an upper chamber and a lower chamber by a middle partition. A PCB control board is installed on the upper side of the upper chamber, and a wireless data transmission terminal body and a drive motor, which are electrically connected to the PCB control board, are installed at intervals on the lower side. The wireless data transmission terminal body is connected to an antenna located on the outside of the housing. The output shaft of the drive motor extends into the lower chamber and is axially connected to a main shaft gear. A shaft gear is also provided in the lower chamber, meshing with the main shaft gear. The shaft gear includes a shaft body and a gear body that meshes with the main shaft gear. A connecting shaft passes through the shaft body and also provides circumferential restraint for the connecting shaft. The valve stem of the V-shaped ball valve passes through a bottom plate opening on the bottom plate of the housing and is axially connected to the connecting shaft. An integrated temperature and pressure sensor is installed on the pipe before the valve of the V-shaped ball valve, and an integrated temperature and pressure sensor is installed on the pipe after the valve. The two sensors are each connected to the PCB control board inside the housing via cables.

[0006] Preferably, the wireless data transmission terminal body is a 4G DTU body, and an antenna connection port is provided on the outer shell wall corresponding to the upper cavity. The antenna connection end of the 4G DTU body is connected to the 4G DTU antenna located on the outside of the outer shell at the antenna connection port, and a 4G DTU sealing ring is also installed at the antenna connection port.

[0007] Preferably, the intermediate partition has a shaft hole for the output shaft of the drive motor to pass through, and a drive motor shaft sealing ring is installed at the corresponding shaft hole.

[0008] Preferably, the spindle gear is hollow inside and has a through hole at its top for bolts to pass through. The output shaft of the drive motor has a bolt hole at its bottom center. The spindle gear fastening bolts pass through the through hole and the bolt hole from bottom to top.

[0009] Preferably, the connecting shaft is hollow inside and has a through hole 2 at the bottom for bolts to pass through. The valve stem of the V-type ball valve has a bolt hole 2 at the center of the top of the valve stem. The valve stem fastening bolt passes through the through hole 2 and the bolt hole 2 in sequence from top to bottom.

[0010] Preferably, the lower outer side of the shaft body is fitted with a main shaft sleeve to support its rotation, and the main shaft sleeve is adapted to be fitted into the bottom plate opening on the bottom plate of the outer casing.

[0011] Preferably, a limiting block is installed on the body of the V-shaped ball valve, the limiting block passing through the bottom plate of the outer casing and extending into the groove formed by the edge of the main shaft sleeve.

[0012] Preferably, a collar is fitted around the upper outer side of the shaft body, and the collar is adapted to be installed at the bottom of the intermediate partition.

[0013] Preferably, the housing has a side opening for the cable to pass through, and a cable protective sleeve is also fitted at the side opening.

[0014] Preferably, the housing includes a housing body, a housing top cover, and a housing bottom plate. The housing top cover is connected to the housing body by a top cover fastening bolt, and the housing bottom plate is connected to the housing body by a bottom plate fastening bolt. The PCB control board is also connected to the housing body by a control board fastening bolt. A top cover sealing ring is provided between the housing top cover and the housing body.

[0015] Compared with existing technologies, the thermal energy control valve for centralized heating systems of this invention adopts 4G wireless communication technology and integrates the detection functions of physical quantities such as pressure, temperature and flow of heating pipelines. It solves the problems of large wiring workload, complicated construction and high system integration complexity in the process of heating system renovation, improves the overall renovation efficiency and reduces the renovation cost, while improving the reliability of the heating system. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is an overall isometric schematic diagram of a thermal energy control valve for a centralized heating system according to the present invention.

[0018] Figure 2 This is a front structural schematic diagram of a thermal energy control valve for a centralized heating system according to the present invention.

[0019] Figure 3 This is a partial sectional view of the front structure of a thermal energy control valve for a centralized heating system according to the present invention.

[0020] Figure 4 This is a side view of a thermal energy control valve for a centralized heating system according to the present invention.

[0021] Figure 5 This is a partial sectional view of the side structure of a thermal energy control valve for a centralized heating system according to the present invention.

[0022] Figure 6 This is a schematic diagram of the outer shell body in this invention.

[0023] Figure 7 This is a schematic diagram of the structure of the wireless data transmission terminal body and antenna in this invention.

[0024] Figure 8 This is a schematic diagram of the drive motor in this invention.

[0025] Figure 9 This is a schematic diagram of the assembly of the various structures in the lower cavity inside the outer shell of the present invention.

[0026] Figure 10 This is a schematic diagram of the shaft gear in this invention.

[0027] Figure 11 This is a schematic diagram of the connecting shaft in this invention.

[0028] Figure 12 This is a schematic diagram of the main shaft sleeve in this invention.

[0029] Figure 13 This is a schematic diagram of the structure of the collar in this invention.

[0030] In the diagram: 1-Main body of the outer casing, 2-Upper cover of the outer casing, 3-Bottom plate of the outer casing, 4-Upper cover fastening bolt, 5-Bottom plate fastening bolt, 6-V-type ball valve, 7-PCB control board, 8-Wireless data transmission terminal main body, 9-Drive motor, 10-Spindle gear, 11-Shaft gear, 12-Connecting shaft, 13-Valve stem, 14-Integrated temperature and pressure sensor before valve, 15-Integrated temperature and pressure sensor after valve, 16-Cable, 17-4G DTU sealing ring, 18-Drive motor shaft sealing ring, 19-Valve stem fastening bolt, 20-Spindle bushing, 21-Limit block, 22-Shaft collar, 23-Cable protective sleeve, 24-Upper cover sealing ring, 25-Antenna. Detailed Implementation

[0031] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] Example: like Figures 1-13 As shown, the present invention provides a thermal energy control valve for a centralized heating system, including a closed housing and a V-type ball valve 6 located below the housing.

[0033] More specifically, the outer casing includes the outer casing body 1 (see...) Figure 6 The outer shell consists of an upper cover 2 and an outer shell bottom plate 3. The upper cover 2 is connected to the outer shell body 1 by upper cover fastening bolts 4, and the outer shell bottom plate 3 is connected to the outer shell body 1 by bottom plate fastening bolts 5.

[0034] Meanwhile, to ensure the sealing effect of the outer shell, an upper cover sealing ring 24 is provided between the upper cover 2 and the outer shell body 1, and a bottom plate sealing ring can also be selectively provided between the bottom plate 3 and the outer shell body 1 as needed.

[0035] In this embodiment, the inner cavity of the outer shell is divided into an upper chamber and a lower chamber by a middle partition. A PCB control board 7 is installed on the upper side of the upper chamber. Specifically, the PCB control board 7 is connected to the outer shell body 1 by control board fastening bolts. A wireless data transmission terminal body 8 and a drive motor 9, which are electrically connected to the PCB control board 7, are installed at intervals on the lower side of the upper chamber. Specifically, the wireless data transmission terminal body 8 and the drive motor 9 are connected to the middle partition by their respective fastening bolts.

[0036] In this embodiment, see Figure 7 The wireless data transmission terminal body 8 is connected to the antenna 25 located on the outside of the outer shell. In a further specific embodiment, the wireless data transmission terminal body 8 is a 4G DTU body, and an antenna connection port is provided on the outer shell wall corresponding to the upper cavity. The antenna connection end of the 4G DTU body is connected to the 4G DTU antenna located on the outside of the outer shell at the antenna connection port, and a 4G DTU sealing ring 17 is also installed at the antenna connection port to ensure the sealing effect of the outer shell.

[0037] In this embodiment, see Figure 5 and Figure 8 The output shaft of the drive motor 9 extends into the lower chamber and is axially connected to a main shaft gear 10.

[0038] In a further specific embodiment, a shaft hole is provided on the intermediate partition for the output shaft of the drive motor to pass through, and a drive motor shaft seal ring 18 is installed at the shaft hole.

[0039] Furthermore, the spindle gear 10 is hollow inside and has a through hole at its top for bolts to pass through. The output shaft of the drive motor 9 has a bolt hole at its bottom center. The spindle gear fastening bolts pass through the through hole and the bolt hole from bottom to top, thereby achieving axial connection and positioning between the spindle gear 10 and the output shaft of the drive motor 9.

[0040] In this embodiment, see Figures 9-11 The lower chamber is also provided with a shaft gear 11 that meshes with the main shaft gear 10. The shaft gear 11 specifically includes a shaft body and a gear part that meshes with the main shaft gear 10. A connecting shaft 12 passes through the shaft body, and the shaft body also forms a circumferential limit on the connecting shaft 12 so as to drive the connecting shaft 12 to rotate synchronously.

[0041] In this embodiment, the valve stem 13 of the V-type ball valve 6 passes through the bottom plate opening on the bottom plate 3 of the housing and is axially connected to the connecting shaft 12.

[0042] In a further specific embodiment, the connecting shaft 12 is hollow inside and has a through hole 2 at the bottom for bolts to pass through. The valve stem of the V-type ball valve 6 has a bolt hole 2 at the center of the top of the valve stem. The valve stem fastening bolt 19 passes through the through hole 2 and the bolt hole 2 from top to bottom, thereby realizing the axial connection and positioning of the connecting shaft 12 and the valve stem 13 of the V-type ball valve 6.

[0043] In a further specific embodiment, a main shaft sleeve 20 supporting its rotation is annularly fitted around the lower outer end of the shaft body (see reference). Figure 12 The spindle bushing 20 is fitted into the opening of the base plate 3 on the outer casing, and at the same time, it achieves a connection seal at the opening of the base plate, ensuring the sealing effect of the outer casing.

[0044] Furthermore, a collar 22 is fitted around the upper outer side of the shaft body (see...). Figure 13 ), the collar 22 is fitted to the bottom of the middle partition plate.

[0045] The collar is used to axially position and limit the shaft gear, and to isolate the rotating shaft body from the intermediate partition plate in the housing, thus avoiding direct contact friction, reducing wear, and extending the life of the shaft and housing.

[0046] Furthermore, a limiting block 21 is installed on the main body of the V-type ball valve 6. The limiting block 21 passes through the bottom plate 3 of the outer casing and extends into the groove formed by the edge of the main shaft sleeve. The limiting block 21 can prevent the V-type ball valve 6 from rotating relative to the outer casing.

[0047] In this embodiment, a front-end temperature and pressure integrated sensor 14 is installed on the front pipeline of the V-type ball valve 6, and a rear-end temperature and pressure integrated sensor 15 is installed on the rear pipeline. The two sensors are each connected to the PCB control board 7 inside the housing via a cable 16.

[0048] In a further specific embodiment, the outer casing has a side opening for the cable 16 to pass through, and a cable protection sleeve 23 is also adapted to be installed at the side opening.

[0049] In general, the cavity inside the outer shell of the present invention is formed by the overall cooperation of the outer shell body 1, the outer shell top cover 2, the outer shell bottom plate 3, and the corresponding top cover sealing ring 24, main shaft bushing 20, 4G DTU sealing ring 17, cable protection rubber sleeve 23, etc. to form a sealed cavity.

[0050] The working principle of this invention is as follows: When the thermal control valve is operating normally, the 4G DTU antenna receives control signals from the cloud platform. The 4G DTU transmits these signals to the PCB control board 7 for signal processing. Then, the PCB control board 7 sends control signals to the drive motor 9. The main shaft gear 10 on the drive motor 9 rotates with the drive motor 9, simultaneously driving the shaft gear 11, which meshes with it, to rotate. The shaft gear 11 drives the connecting shaft 12 to rotate, and the connecting shaft 12 drives the valve stem 13 of the V-type ball valve 6 to rotate, thereby placing the V-type ball valve 6 in the corresponding valve position to regulate the flow and pressure in the heating pipeline.

[0051] Once the valve position stabilizes, the upstream and downstream integrated temperature and pressure sensors 14 and 15 measure the pressure and temperature in the upstream and downstream heating pipes under the current valve position, respectively, and transmit the pressure and temperature signals to the PCB control board 7. The PCB control board 7 processes these four signals and, combined with the pre-calibrated flow coefficient of the V-type ball valve, calculates the current flow rate in the heating pipe. The PCB control board 7 packages the current valve position feedback signal, the pressure, temperature, and flow rate signals of the heating pipe and sends them to the cloud platform's database via a 4G DTU antenna for HVAC decision control. The control signal generated after the decision is then received by the 4G DTU antenna, and the above steps are repeated.

[0052] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0053] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A thermal energy control valve for a centralized heating system, characterized in that, The device includes a closed housing and a V-shaped ball valve located below the housing. The inner cavity of the housing is divided into an upper chamber and a lower chamber by a middle partition. A PCB control board is installed on the upper side of the upper chamber, and a wireless data transmission terminal body and a drive motor, which are electrically connected to the PCB control board, are installed at intervals on the lower side. The wireless data transmission terminal body is connected to an antenna located on the outside of the housing. The output shaft of the drive motor extends into the lower chamber and is axially connected to a main shaft gear. A shaft gear is also provided in the lower chamber, meshing with the main shaft gear. The shaft gear includes a shaft body and a gear body that meshes with the main shaft gear. A connecting shaft passes through the shaft body and also provides circumferential restraint for the connecting shaft. The valve stem of the V-shaped ball valve passes through a bottom plate opening on the bottom plate of the housing and is axially connected to the connecting shaft. An integrated temperature and pressure sensor is installed on the pipe before the valve of the V-shaped ball valve, and an integrated temperature and pressure sensor is installed on the pipe after the valve. Both sensors are connected to the PCB control board inside the housing via cables.

2. The thermal energy control valve for a centralized heating system according to claim 1, characterized in that, The main body of the wireless data transmission terminal is a 4G DTU main body. An antenna connection port is provided on the outer shell wall corresponding to the upper cavity. The antenna connection end of the 4G DTU main body is connected to the 4G DTU antenna located on the outside of the outer shell at the antenna connection port. A 4G DTU sealing ring is also installed at the antenna connection port.

3. A heat energy control valve for a centralized heating system according to claim 1, characterized in that, The intermediate partition plate has a shaft hole for the output shaft of the drive motor to pass through, and a drive motor shaft seal ring is installed at the corresponding shaft hole.

4. A heat energy control valve for a centralized heating system according to claim 1, characterized in that, The main shaft gear is hollow inside and has a through hole at the top for bolts to pass through. The output shaft of the drive motor has a bolt hole at the center of the bottom end. The main shaft gear fastening bolt passes through the through hole and the bolt hole in sequence from bottom to top.

5. A heat energy control valve for a centralized heating system according to claim 1, characterized in that, The connecting shaft is hollow inside and has a through hole 2 at the bottom for bolts to pass through. The valve stem of the V-type ball valve has a bolt hole 2 at the center of the top. The valve stem fastening bolt passes through the through hole 2 and the bolt hole 2 in sequence from top to bottom.

6. A heat energy control valve for a centralized heating system according to claim 1, characterized in that, The lower outer side of the shaft body is fitted with a main shaft sleeve to support its rotation, and the main shaft sleeve is adapted to be fitted into the bottom plate opening on the bottom plate of the outer casing.

7. A heat energy control valve for a centralized heating system according to claim 6, characterized in that, A limiting block is installed on the main body of the V-type ball valve. The limiting block passes through the bottom plate of the outer casing and extends into the groove formed by the edge of the main shaft sleeve.

8. A heat energy control valve for a centralized heating system according to claim 1, characterized in that, The upper outer side of the shaft body is fitted with a collar, which is adapted to be installed at the bottom of the intermediate partition.

9. A heat energy control valve for a centralized heating system according to claim 1, characterized in that, The outer casing has a side opening for the cable to pass through, and a cable protection sleeve is also fitted at the side opening.

10. A heat energy control valve for a centralized heating system according to claim 1, characterized in that, The housing includes a housing body, a housing top cover, and a housing bottom plate. The housing top cover is connected to the housing body by a top cover fastening bolt, and the housing bottom plate is connected to the housing body by a bottom plate fastening bolt. The PCB control board is also connected to the housing body by a control board fastening bolt. A top cover sealing ring is provided between the housing top cover and the housing body.

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