Heat supply balance valve

Abstract

The utility model discloses a heat supply balance valve, and belongs to the technical field of balance valves. Comprising a valve body, a pressure bin is installed on the top of the valve body, and a pressure guide pipe is installed on the pressure bin; a diaphragm is mounted on the inner side of the pressure bin; the diaphragm is mounted at the action end of the valve core; the device further comprises a correction unit, a pipe support, a temperature transmitting unit and a control unit. The correction unit comprises solenoid bases fixed to the top face and the bottom face of the pressure bin. The solenoid seat is communicated with the interior of the pressure bin; the solenoid seats are communicated with each other through a correction tube; an electric control opening valve is connected in series between the correction pipes; the pipe support is integrally formed on the upper portion of the input side of the valve body. A first internal thread groove is formed in the upper part of the inner side of the pipe support; according to the heat supply balance valve, the opening degree of the valve body is corrected by collecting the temperature of the water return end of a heat supply network, accurate flow control of the balance valve is guaranteed, and when electric control of the correction end fails, the valve body still has the pressure balance function.

Description

Technical Field

[0001] The utility model specifically relates to a heating balance valve, belonging to the technical field of balance valves. Background Art

[0002] Existing temperature balance adjustment devices for heating pipe networks are key equipment in heating systems for maintaining and adjusting heat energy distribution. The main purpose of these devices is to ensure that heat energy is evenly distributed to each user according to the design requirements, while maintaining the stability and efficiency of the system. Among them, the balance valve is a common temperature balance adjustment device for heating pipe networks. The balance valve can ensure that each branch loop obtains the designed flow rate, preventing the flow rate in some loops from being too much or too little, so as to avoid the situation of overheating in some areas and overcooling in other areas, and achieve the temperature balance of the entire system; for example, the Chinese patent authorization publication number: CN222559347U, discloses a temperature balance adjustment device for heating pipe networks, which can lock the adjustment handwheel, achieving the purpose that the adjustment state of the balance valve cannot be changed randomly, and ensuring the stability of the device; however, this structure cannot automatically adapt to the flow rate fluctuation balance caused by indoor temperature control. Another example is the Chinese authorization publication number: CN218954158U, which discloses a heating balance valve. The purpose of this structure is to better control the heating balance valve and facilitate the better use of the heating balance valve, but this structure cannot achieve the precise balance of the incoming household temperature fluctuation; for the existing differential pressure dynamic balance valve, during the use process, affected by factors such as diaphragm material, installation, and mechanical fatigue during long-term operation, it cannot ensure the precise flow control of the balance valve; for some balance valves using an electric control structure, once there is a power failure or the electric control part fails, the function of the balance valve cannot be realized. Summary of the Utility Model

[0003] To solve the above problems, the utility model proposes a heating balance valve, which corrects the valve body opening by collecting the temperature at the return water end of the heating pipe network to ensure the precise flow control of the balance valve. When the correction end electric control fails, the valve body itself still has the pressure balance function.

[0004] The heating balance valve of the utility model includes a valve body, a pressure chamber is installed on the top of the valve body, and a pressure guiding pipe is installed on the pressure chamber; a diaphragm is installed inside the pressure chamber; the diaphragm is installed with the action end of the valve core; during operation, the heating pipe network enters the user end through the valve body. When the user end adjusts the temperature, the heat medium flow rate entering the user end of the heating pipe network is adjusted. When the user end adjusts the temperature, it will affect the flow medium pressure at the incoming household end of the heating pipe network. At this time, the flow medium pressure of the heating pipe network synchronously intervenes in the action of the diaphragm in the pressure chamber to synchronously adjust the return water pressure of the heating pipe network, thereby achieving the heat balance of the heating pipe network.

[0005] It further includes:

[0006] The correction unit includes a solenoid seat fixed to the top and bottom surfaces of the pressure chamber; the solenoid seat is connected to the inside of the pressure chamber; the solenoid seats are connected through a correction tube; an electrically controlled opening valve is connected in series between the correction tubes;

[0007] A pipe support, the pipe support is integrally formed on the upper part of the valve body input side; a first internal thread groove is provided on the upper inner part of the pipe support; a temperature detection hole is provided at the center of the pipe support of the valve body;

[0008] The temperature transmitter unit comprises a first convex seat screwed with the first internal thread groove, a notch is provided on the upper part of the first convex seat; a temperature transmitter is fixedly engaged in the inner side of the notch, and the temperature transmitter is movably inserted into the temperature detection hole; an epoxy resin adhesive is provided between the first convex seat and the valve body of the pipe support; a contact electrode connected to the temperature transmitter is fixed on the top of the first convex seat;

[0009] A control unit, the control unit includes a box body with a built-in controller, a second convex seat is fixed to the bottom of the box body, the second convex seat is screwed to the notch of the first convex seat, two electrode rings are embedded and fixed to the bottom of the second convex seat, the electrode rings are in contact with the contact electrodes; the controller is connected to the electrode rings; the electric control opening valve is connected to the controller.

[0010] When the fluctuation of the source end of the heating network, the movement error of the diaphragm of the pressure chamber or the elastic fatigue of the diaphragm and other factors cause the return water temperature of the balancing valve to deviate from the set temperature, and the deviation exceeds the set value, the correction unit will perform the deviation correction. The specific work is as follows: The temperature transmitter collects the internal temperature of the valve body in real time, and sends the temperature data to the controller through the contact electrode and the electrode ring. The controller calculates the difference between the temperature data and the set value. When the difference reaches the set value, the opening of the electronically controlled opening valve is obtained according to the size of the difference, thereby adjusting the pressure on the upper part of the diaphragm of the pressure chamber.

[0011] Furthermore, the pressure-conducting pipe is connected to the water inlet end of the household heating pipe; the valve body is connected to the return water end of the household heating pipe; when in use, the pressure-conducting pipe pumps the high-pressure fluid into the pressure chamber to control the diaphragm to move, thereby realizing the return water pressure adjustment at the return water end.

[0012] Furthermore, the first convex seat and the second convex seat are both hexagonal in structure on the outside; the hexagonal structure can be tightened by secondary screw connection using a wrench.

[0013] Further, the correction pipe includes an upper pipe section and a lower pipe section. One end of the upper pipe section and the lower pipe section is provided with a joint screwed to the screw pipe seat, and the other end of the upper pipe section and the lower pipe section is provided with a flange body fixed to the electric control opening valve. During installation, first screw the upper pipe section and the lower pipe section onto the screw pipe seat, and then align the flanges with the flange of the electric control opening valve to achieve axial and circumferential limits of the correction pipe after installation.

[0014] Further, the inner diameter of the upper pipe section and the lower pipe section near the electric control opening valve is greater than that of the other end. After the inner diameter of the correction pipe near the electric control opening valve is increased, the intervention amount of the electric control opening valve can be improved, and the correction unit can quickly execute deviation correction.

[0015] Further, an Internet of Things communication module connected to the controller is arranged in the box body, and the Internet of Things communication module is connected to the indoor temperature control host. When the controller obtains the set temperature data of the indoor temperature control host through the Internet of Things communication module, at the same time, the controller collects the return water temperature of the heat supply pipe network collected by the temperature transmitter, calculates the temperature difference between the two, compares whether the temperature difference reaches the correction threshold, and after reaching the set correction threshold, the controller retrieves the temperature-opening degree comparison table set in the controller according to the size of the difference to obtain the opening degree, and sends the opening degree to the correction unit, and the correction unit executes deviation correction to realize the secondary balance action of the balance valve.

[0016] Compared with the prior art, the heat supply balance valve of the present utility model collects the return water temperature of the heat supply pipe network, and judges whether the correction trigger threshold is reached according to the collected temperature value. After reaching the correction trigger threshold, the opening degree of the valve body is corrected to ensure the accurate flow control of the balance valve. The valve body controls the opening degree action of the valve stem through components such as a pressure chamber, a pressure guiding pipe and a diaphragm, and realizes mechanical pressure self-control based on the pressure of the heat supply pipe network, and can keep the valve body always having the pressure balance function. When the electric control of the correction end fails, the valve body itself still has the pressure balance function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the heat supply balance valve of the present utility model.

[0018] Figure 2 It is a schematic diagram of the structure of the heat supply balance valve of the present utility model without installing the control unit.

[0019] Figure 3 It is a schematic cross-sectional structure diagram of the valve body of the present utility model at the pipe support.

[0020] Figure 4 It is a schematic diagram of the heat supply balance valve of the present utility model connected to the heat supply pipe network.

[0021] Figure numerals: 1. valve body, 2. pressure chamber, 3. pressure guiding pipe, 4. screw tube seat, 5. correction tube, 6. electric control opening valve, 7. pipe support, 8. first convex seat, 9. temperature transmitter, 10. epoxy resin adhesive, 11. contact electrode, 12. box body, 13. second convex seat, 14. electrode ring, 15. upper pipe section, 16. lower pipe section, 17. joint, 18. flange body, 19. diaphragm. DETAILED DESCRIPTION

[0022] Example:

[0023] like Figures 1 to 4 The heat supply balancing valve shown includes a valve body 1, a pressure chamber 2 is installed on the top of the valve body 1, and a pressure pipe 3 is installed on the pressure chamber 2; a diaphragm 19 is installed on the inner side of the pressure chamber 2; the diaphragm 19 is installed with the valve core action end; when working, the heat supply pipe network enters the user end through the valve body 1, and when the user end adjusts the temperature, the heat medium flow rate entering the user end of the heat supply pipe network is adjusted. When the user end adjusts the temperature, it will affect the flow medium pressure at the household end of the heat supply pipe network. At this time, the flow medium pressure of the heat supply pipe network synchronously intervenes in the action of the diaphragm 19 in the pressure chamber 2, and the return water pressure of the heat supply pipe network is synchronously adjusted, so as to achieve the heat balance of the heat supply pipe network;

[0024] Also includes:

[0025] The correction unit includes a solenoid seat 4 fixed to the top and bottom surfaces of the pressure chamber 2; the solenoid seat 4 is connected to the inside of the pressure chamber 2; the solenoid seats 4 are connected through a correction tube 5; an electrically controlled opening valve 6 is connected in series between the correction tubes 5;

[0026] The pipe support 7 is integrally formed on the upper part of the input side of the valve body 1; the upper part of the inner side of the pipe support 7 is provided with a first internal thread groove; the valve body 1 is provided with a temperature detection hole at the center of the pipe support 7;

[0027] The temperature transmitter unit comprises a first convex seat 8 screwed to the first internal thread groove, a notch is provided on the upper part of the first convex seat 8; a temperature transmitter 9 is fixedly engaged inside the notch, and the temperature transmitter 9 is movably inserted into the temperature detection hole; an epoxy resin adhesive 10 is provided between the first convex seat 8 and the valve body 1 on the pipe support 7; a contact electrode 11 connected to the temperature transmitter 9 is fixed on the top of the first convex seat 8;

[0028] A control unit, the control unit includes a box body 12 with a built-in controller, a second convex seat 13 is fixed to the bottom of the box body 12, the second convex seat 13 is screwed to the notch of the first convex seat 8, two electrode rings 14 are embedded and fixed to the bottom of the second convex seat 13, the electrode rings 14 are in contact with the contact electrode 11; the controller is connected to the electrode ring 14; the electrically controlled opening valve 6 is connected to the controller.

[0029] When factors such as fluctuations at the inlet source end of the heat supply pipeline, the action error of the diaphragm 19 in the pressure chamber 2, or the elastic fatigue of the diaphragm 19 cause a deviation between the temperature at the return water end of the balance valve and the set temperature, and the deviation exceeds the set value, the correction unit performs deviation correction. The specific work is as follows: The temperature transmitter 9 continuously collects the temperature inside the valve body 1, and sends the temperature data to the controller through the contact electrode 11 and the electrode ring 14. The controller calculates the difference between the temperature data and the set value. When the difference reaches the set value, the opening degree of the electric control opening valve 6 is obtained according to the magnitude of the difference, thereby adjusting the pressure above the diaphragm 19 in the pressure chamber 2.

[0030] The pressure guiding pipe 3 is connected to the water inlet end of the household heat supply pipeline; the valve body 1 is connected to the water return end of the household heat supply pipeline; during use, the pressure guiding pipe 3 injects high-pressure fluid medium into the pressure chamber 2 to control the action of the diaphragm 19, thereby realizing the adjustment of the return water pressure at the return water end.

[0031] The outer parts of the first convex seat 8 and the second convex seat 13 are both hexagonal structures; with the hexagonal structure, secondary screw connection tightening can be carried out with a wrench.

[0032] The correction pipe 5 includes an upper pipe section 15 and a lower pipe section 16. One ends of the upper pipe section 15 and the lower pipe section 16 are provided with joints 17 screwed to the screw pipe seat 4, and the other ends of the upper pipe section 15 and the lower pipe section 16 are provided with flange bodies 18 fixed to the electric control opening valve 6; during installation, first screw the upper pipe section 15 and the lower pipe section 16 onto the screw pipe seat 4, and then align the flanges with the flange of the electric control opening valve 6; to achieve axial and circumferential limits of the installed correction pipe 5.

[0033] The inner diameter of the upper pipe section 15 and the lower pipe section 16 near one end of the electric control opening valve 6 is larger than that of the other end; after the inner diameter of the correction pipe 5 near one end of the electric control opening valve 6 is increased, the intervention amount of the electric control opening valve 6 can be improved, and the correction unit can quickly perform deviation correction.

[0034] An Internet of Things communication module connected to the controller is arranged in the box body 12, and the Internet of Things communication module is connected to the indoor temperature control host; when the controller obtains the set temperature data of the indoor temperature control host through the Internet of Things communication module, at the same time, the controller collects the return water temperature of the heat supply pipeline collected by the temperature transmitter 9, calculates the temperature difference between the two, compares whether the temperature difference reaches the correction threshold, and after reaching the set correction threshold, the controller retrieves the temperature-opening degree comparison table set in the controller according to the magnitude of the difference; obtains the opening degree, and sends the opening degree to the correction unit, and the correction unit performs deviation correction to realize the secondary balance action of the balance valve.

[0035] The above embodiments are only the preferred embodiments of the present invention. Therefore, all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present invention application are included in the scope of the present invention application.

Claims

1. A heat supply balancing valve, comprising a valve body, a pressure chamber installed on the top of the valve body, a pressure pipe installed on the pressure chamber; a diaphragm installed inside the pressure chamber; the diaphragm is installed with the valve core action end; characterized in that: Also includes: A correction unit, the correction unit comprising a screw seat fixed to the top and bottom surfaces of the pressure chamber; The solenoid seat is connected to the inside of the pressure chamber; the solenoid seats are connected to each other through a correction tube; an electrically controlled opening valve is connected in series between the correction tubes; A pipe support, the pipe support is integrally formed on the upper part of the valve body input side; a first internal thread groove is provided on the upper inner part of the pipe support; a temperature detection hole is provided at the center of the pipe support of the valve body; The temperature transmitter unit comprises a first convex seat screwed with the first internal thread groove, a notch is provided on the upper part of the first convex seat; a temperature transmitter is fixedly engaged in the inner side of the notch, and the temperature transmitter is movably inserted into the temperature detection hole; an epoxy resin adhesive is provided between the first convex seat and the valve body of the pipe support; a contact electrode connected to the temperature transmitter is fixed on the top of the first convex seat; A control unit, the control unit includes a box body with a built-in controller, a second convex seat is fixed to the bottom of the box body, the second convex seat is screwed to the notch of the first convex seat, two electrode rings are embedded and fixed to the bottom of the second convex seat, the electrode rings are in contact with the contact electrodes; the controller is connected to the electrode rings; the electric control opening valve is connected to the controller.

2. The heat supply balancing valve according to claim 1, characterized in that: The pressure-conducting pipe is connected to the water inlet end of the household heating pipeline; and the valve body is connected to the water return end of the household heating pipeline.

3. The heating balancing valve according to claim 1, characterized in that: The first convex seat and the second convex seat both have hexagonal structures on the outside.

4. The heat supply balancing valve according to claim 1, characterized in that: The correction pipe comprises an upper pipe section and a lower pipe section, one end of the upper pipe section and the lower pipe section is provided with a joint screwed to a screw seat, and the other end of the upper pipe section and the lower pipe section is provided with a flange body fixed to an electric control opening valve.

5. The heating balancing valve according to claim 4, characterized in that: The inner diameter of one end of the upper pipe section and the lower pipe section close to the electric-controlled opening valve is larger than the inner diameter of the other end.

6. The heat supply balancing valve according to claim 1, characterized in that: The box body is provided with an Internet of Things communication module connected to the controller, and the Internet of Things communication module is connected to the indoor temperature control host.

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