Heat supply regulating valve with improved structure

Abstract

The utility model discloses a heat supply regulating valve with an improved structure, which comprises a top flange, a fixing bolt, a first balance hole, a pilot valve connecting disc, a connecting section, a bottom flange, a fixing nut, an inlet section, a connecting flange, a communicating section, a butt-joint disc, a second balance hole, a butt-joint bolt and a bottom valve body, through holes are evenly formed in the top flange, fixing bolts are connected in the through holes in a sleeved mode, and the fixing bolts are connected in the first balance holes in a sleeved mode. The structure of an existing adjusting valve is optimized, the working thrust capacity of an existing pneumatic actuator is met, the valve can be normally opened and closed under the working condition of large high-low pressure difference, the phenomenon that the opening degree of the valve is uncontrollable due to the fact that the valve element bears unbalanced force is avoided, and the reliability of heat supply system equipment and the working stability of a system are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of regulating valves, in particular to a heating regulating valve with an improved structure. Background Art

[0002] A heating regulating valve is a device used to control the flow of steam or hot water in a heating system. It is usually installed on a heating steam main pipe and can automatically adjust the heating extraction steam flow according to the needs of the system to ensure the required heating extraction steam pressure. A heating regulating valve is usually composed of a valve, a quick-closing actuator, a hydraulic control device and a feedback device. When the system needs to increase the heating flow, the control system will increase the oil pressure so that the piston rod of the oil motor overcomes the spring force to do work, thereby realizing the opening of the valve. The heating regulating valve can accurately control the heating flow, ensure the stable operation of the system, and improve the heating efficiency. It is an indispensable and important component in the heating system. The existing heating regulating valve can basically meet the daily use needs, but the existing heating structure valve has a single balance hole structure. When operating under conditions with a large high and low pressure difference, the force on the valve core will increase, and the valve is easily out of control due to unbalanced force on the valve core, affecting the reliability of the heating system equipment and the working stability of the system. Therefore, it is very necessary to design a heating regulating valve with an improved structure to avoid the phenomenon that the valve core is subjected to unbalanced force and the valve opening is uncontrollable, so as to ensure the reliability of the heating system equipment and the working stability of the system. Utility Model Content

[0003] The utility model aims to provide a heating regulating valve with an improved structure, so as to solve the problem that the existing heating structure valve has a single balancing hole structure, and the operation under the working conditions of large high and low pressure difference will increase the force on the valve core, which is easy to cause the valve to lose control due to the unbalanced force on the valve core, affecting the reliability of the heating system equipment and the working stability of the system.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a heating regulating valve with an improved structure, comprising a top flange, a fixing bolt, a first balancing hole, a pilot valve connecting plate, a connecting section, a bottom flange, a fixing nut, an inlet section, a connecting flange, a connecting section, a docking plate, a second balancing hole, a docking bolt and a bottom valve body, wherein the top flange is evenly provided with through holes in which fixing bolts are sleeved, the fixing bolts are sleeved in the first balancing hole, the first balancing hole is evenly provided on the pilot valve connecting plate, a connecting section is provided at the bottom of the top flange, and a bottom flange is provided at the bottom of the connecting section, a connecting section is provided at the bottom of the bottom flange, a docking plate is provided at the bottom of the connecting section, second balancing holes are evenly provided on the docking plate, a docking bolt is sleeved in the second balancing hole, the bottom end of the docking bolt is connected to the bottom valve body by threaded fitting, and the bottom valve body fits against the bottom of the docking plate.

[0005] Preferably, an inlet section is provided at the top of the pilot valve connection disk, a connecting flange is provided at the top of the inlet section, and the bottom of the inlet section is communicated with the connecting section.

[0006] Preferably, the through hole formed on the bottom flange is sleeved with the bottom end of the fixing bolt, and the fixing bolt is connected with a fixing nut through threaded cooperation, and the fixing nut is fitted on the bottom flange.

[0007] Preferably, a butt joint pipe is provided in the connecting section, and the bottom end of the butt joint pipe passes through the butt joint plate and is fixedly connected with a pressure relief port.

[0008] Preferably, a mounting shell is sleeved in the bottom valve body, and a bottom block is sleeved in the mounting shell.

[0009] Preferably, cage throttling holes are symmetrically provided on both sides of the mounting shell.

[0010] Preferably, a control board is provided on one side of the connecting section, and a connecting line is provided on the control board.

[0011] The utility model provides a heating regulating valve with an improved structure, which has the advantages that: the pressure relief guide structure of the valve body is composed of a butt joint and a pressure relief port in the connecting section, and the stable connection of the valve body is ensured by increasing the number of the first balancing hole on the pilot valve connecting plate and the second balancing hole on the butt joint plate, and the pressure relief is carried out in cooperation with the valve cage throttling hole in the bottom valve body, thereby optimizing the existing regulating valve structure, meeting the working thrust capacity of the existing pneumatic actuator, and enabling the valve to be opened and closed normally under the condition of large high and low pressure difference, avoiding the phenomenon that the valve core is subjected to unbalanced force and the valve opening is uncontrollable, thereby ensuring the reliability of the heating system equipment and the working stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a partial structural schematic diagram of the utility model;

[0015] Figure 3 It is a schematic diagram of the opening position of the first balancing hole in the utility model.

[0016] In the figure: 1. Top flange; 2. Fixing bolts; 3. First balancing hole; 4. Pilot valve connecting plate; 5. Connecting section; 6. Bottom flange; 7. Fixing nut; 8. Inlet section; 9. Connecting flange; 10. Connecting section; 11. Docking plate; 12. Second balancing hole; 13. Docking bolts; 14. Bottom valve body; 15. Docking pipe; 16. Pressure relief port; 17. Mounting shell; 18. Bottom block; 19. Valve cage throttle hole; 20. Control board; 21. Connecting wire. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] See also Figure 1-3The utility model provides an embodiment: a heating regulating valve with an improved structure, comprising a top flange 1, a fixing bolt 2, a first balancing hole 3, a pilot valve connecting plate 4, a connecting section 5, a bottom flange 6, a fixing nut 7, an inlet section 8, a connecting flange 9, a connecting section 10, a docking plate 11, a second balancing hole 12, a docking bolt 13 and a bottom valve body 14, the top flange 1 is evenly provided with through holes in which fixing bolts 2 are sleeved, the fixing bolts 2 are sleeved in the first balancing hole 3, the first balancing hole 3 is evenly provided on the pilot valve connecting plate 4, a connecting section 5 is provided at the bottom of the top flange 1, and the connecting section 5 A bottom flange 6 is provided at the bottom, a connecting section 10 is provided at the bottom of the bottom flange 6, a docking plate 11 is provided at the bottom of the connecting section 10, second balancing holes 12 are evenly opened on the docking plate 11, a docking bolt 13 is sleeved in the second balancing hole 12, the bottom end of the docking bolt 13 is connected to the bottom valve body 14 through threaded fitting, the bottom valve body 14 is attached to the bottom of the docking plate 11, an inlet section 8 is provided at the top of the pilot valve connection plate 4, a connecting flange 9 is provided at the top of the inlet section 8, and the bottom of the inlet section 8 is communicated with the connecting section 5, and the connecting flange 9 is used to connect the external pipeline structure to the regulating valve;

[0020] The through hole opened on the bottom flange 6 is sleeved with the bottom end of the fixing bolt 2, and the fixing bolt 2 is connected with a fixing nut 7 through threaded cooperation, and the fixing nut 7 is fitted on the bottom flange 6. A butt pipe 15 is provided in the connecting section 10, and the bottom end of the butt pipe 15 passes through the docking plate 11 and is fixedly connected with a pressure relief port 16. A mounting shell 17 is sleeved in the bottom valve body 14, and a bottom block 18 is sleeved in the mounting shell 17. Valve cage throttling holes 19 are symmetrically provided on both sides of the mounting shell 17. A control board 20 is provided on one side of the connecting section 10, and the control board 20 A connecting line 21 is provided on the top, and the pressure relief guide structure of the valve body is composed of the butt joint pipe 15 and the pressure relief port 16 in the connecting section 10. At the same time, the number of the first balancing holes 3 on the pilot valve connecting plate 4 and the second balancing holes 12 on the butt joint plate 11 is increased to ensure the stable connection of the valve body, and the pressure is relieved by cooperating with the valve cage throttle hole 19 in the bottom valve body 14. The number of the second balancing holes 12 is 18, and the aperture specification of the second balancing holes 12 is 12mm. The number of the first balancing holes 3 is 16, and the aperture specification of the first balancing holes 3 is 16mm.

[0021] Specifically, when in use, first, the connecting flange 9 and the bottom valve body 14 are matched and connected in the heating system. The liquid enters from one end of the bottom valve body 14, passes through the mounting shell 17, and enters the connecting section 10 from the pressure relief port 16. When the pressure increases, the butt pipe 15 in the connecting section 10 and the pressure relief port 16 form a pressure relief guide structure of the valve body. The liquid flows out from the valve cage throttle hole 19 to the other end of the bottom valve body 14, thereby optimizing the existing regulating valve structure and meeting the working thrust capacity of the existing pneumatic actuator, so that the valve can be opened and closed normally under conditions with large high and low pressure differences, thereby avoiding the phenomenon that the valve core is subjected to unbalanced force, resulting in uncontrollable valve opening.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A heating regulating valve with an improved structure, comprising a top flange (1), a fixing bolt (2), a first balancing hole (3), a pilot valve connecting plate (4), a connecting section (5), a bottom flange (6), a fixing nut (7), an inlet section (8), a connecting flange (9), a connecting section (10), a docking plate (11), a second balancing hole (12), a docking bolt (13) and a bottom valve body (14), characterized in that: The top flange (1) is evenly provided with through holes in which fixing bolts (2) are sleeved. The fixing bolts (2) are sleeved in first balancing holes (3). The first balancing holes (3) are evenly provided on the pilot valve connection plate (4). A connecting section (5) is provided at the bottom of the top flange (1), and a bottom flange (6) is provided at the bottom of the connecting section (5). A connecting section (10) is provided at the bottom of the bottom flange (6). A docking plate (11) is provided at the bottom of the connecting section (10). Second balancing holes (12) are evenly provided on the docking plate (11). A docking bolt (13) is sleeved in the second balancing hole (12). The bottom end of the docking bolt (13) is connected to the bottom valve body (14) by threaded engagement. The bottom valve body (14) fits the bottom of the docking plate (11).

2. The improved structure of the heating regulating valve according to claim 1 is characterized in that: An inlet section (8) is arranged at the top of the pilot valve connection plate (4), a connecting flange (9) is arranged at the top of the inlet section (8), and the bottom of the inlet section (8) is communicated with the connecting section (5).

3. The improved structure of the heating regulating valve according to claim 1 is characterized in that: The through hole formed on the bottom flange (6) is sleeved with the bottom end of the fixing bolt (2), and the fixing bolt (2) is connected with a fixing nut (7) through threaded fitting, and the fixing nut (7) is fitted on the bottom flange (6).

4. The improved structure of the heating regulating valve according to claim 1 is characterized in that: A butt joint pipe (15) is provided in the connecting section (10), and the bottom end of the butt joint pipe (15) passes through the butt joint plate (11) and is fixedly connected to a pressure relief port (16).

5. The improved structure of the heating regulating valve according to claim 1 is characterized in that: The bottom valve body (14) is sleeved with a mounting shell (17), and the mounting shell (17) is sleeved with a bottom block (18).

6. The improved structure of the heating regulating valve according to claim 5 is characterized in that: Valve cage throttling holes (19) are symmetrically provided on both sides of the installation shell (17).

7. The improved structure of the heating regulating valve according to claim 4 is characterized in that: A control panel (20) is provided on one side of the connecting section (10), and a connecting line (21) is provided on the control panel (20).

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