Tesla valve type pipeline non-return device

Abstract

The utility model belongs to the technical field of pipeline equipment, and provides a Tesla valve type pipeline non-return device which comprises a valve main body, a valve inlet and a valve outlet are formed in the two ends of the valve main body respectively, and the valve main body is further provided with a control chamber communicated with a cavity of the valve main body; the check valve element comprises a valve element column movably arranged in the control chamber, the valve element column is provided with a through groove of a Tesla valve structure, and the through groove transversely penetrates through the valve element column and is parallel to the axis of the valve body. The Tesla valve type pipeline non-return device provided by the utility model is simple in structure, can effectively solve the reverse flow phenomenon in a heat exchange station pipeline, avoids damage of heat exchange station equipment caused by the reverse flow phenomenon, and prevents fluid in the pipeline from reversely flowing to other pipelines, so that the energy waste and loss caused by the reverse flow are reduced, and the service life of the heat exchange station equipment is prolonged. The resource utilization rate and the heat exchange efficiency of the heat exchange station are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline equipment, and particularly relates to a Tesla valve type pipeline non-return device. Background Art

[0002] At present, in the actual operation of the heat exchange station, there is a phenomenon of fluid backflow in the heat exchange station pipeline, and the backflow phenomenon in the heat exchange station pipeline often causes damage or failure of the heat exchange station equipment. In addition, when the heat exchange station is heated in winter, the heat source passes through the heat exchanger to heat the steam or hot water, and then transports it to the radiator or heating system at the user end through the primary and secondary pipe networks of the heat exchange station. Among them, the backflow phenomenon of the fluid (steam or hot water) in the pipeline is a common problem. Part of the fluid carrying heat often flows into other pipelines due to the backflow phenomenon, which seriously affects the efficiency of the heat exchange system, causes energy waste, and increases the operating cost of the heat exchange station.

[0003] Therefore, it is necessary to design a pipeline anti-return device aimed at solving the backflow phenomenon existing in the pipeline of the existing heat exchange station. Summary of the invention

[0004] In order to solve the above technical problems, the utility model proposes a Tesla valve type pipeline check device, which has a simple structure and can effectively solve the backflow phenomenon in the pipeline of the heat exchange station, avoid damage to the equipment of the heat exchange station caused by the backflow phenomenon, and prevent the fluid in the pipeline from backflowing and flowing back to other pipelines, thereby reducing the energy waste and loss caused thereby, and improving the resource utilization rate and heat exchange efficiency of the heat exchange station.

[0005] The technical solution of the utility model is:

[0006] The utility model provides a Tesla valve type pipeline non-return device, comprising:

[0007] A valve body, wherein two ends of the valve body are respectively provided with a valve inlet and a valve outlet, and the valve body is also provided with a control chamber connected with its cavity;

[0008] The check valve core comprises a valve core column movably arranged in the control chamber, the valve core column is provided with a through groove in the form of a Tesla valve structure, the through groove transversely penetrates the valve core column and is parallel to the axis of the valve body.

[0009] Preferably, the control chamber is provided with a left baffle and a right baffle arranged opposite to each other, the left baffle is arranged close to the valve inlet, and the right baffle is arranged close to the valve outlet;

[0010] There is an overlapping area between the projections of the left stopper and the right stopper along the axis direction of the valve body, and the valve core column is movably arranged between the left stopper and the right stopper.

[0011] Preferably, the height of the through groove along the axial direction of the valve core column is greater than the length of the overlapping area of ​​the projections of the left baffle and the right baffle.

[0012] Preferably, the left baffle and the right baffle are compatible arc-shaped baffles.

[0013] Preferably, sealing mechanisms are provided at both ends of the valve core column, and the sealing mechanisms are provided with at least one sealing ring.

[0014] Preferably, the sealing ring is any one of an O-shaped sealing ring, a V-shaped sealing ring, or a Y-shaped sealing ring.

[0015] Preferably, the Tesla valve type pipeline non-return device provided by the utility model further includes a driving mechanism, and the driving mechanism is detachably connected to the valve body;

[0016] The check valve core is connected to the driving mechanism to drive the valve core column to move to realize the connection and disconnection of the valve inlet and the valve outlet.

[0017] Preferably, the check valve core is further provided with a driving rod fixedly connected to the valve core column, and the driving rod is connected to the driving mechanism.

[0018] Preferably, the driving mechanism is provided with any one of a driving motor, a driving cylinder, or a driving electromagnet.

[0019] Compared with the prior art, the utility model has the following advantages and effects:

[0020] (1) A valve core column with a through groove is used, and the through groove is a Tesla valve structure, which can realize the one-way flow of the fluid in the pipeline from the valve inlet to the valve outlet. Since the resistance of the reverse flow of the through groove of the Tesla valve structure is higher than the resistance of the forward flow, it plays a role in preventing backflow, preventing the fluid in the pipeline of the heat exchange station from flowing back to other pipelines, causing heat loss and energy waste, thereby improving the energy utilization rate and heat exchange efficiency of the heat exchange station;

[0021] (2) The valve core column is movably arranged in the control room in the cavity of the valve body. The valve body can be switched on and off by adjusting the position of the valve core column. During the non-heat exchange heating period or the routine maintenance period, the valve body can be completely closed to avoid water leakage or liquid leakage, thereby improving the practicality and convenience of the overall device;

[0022] (3) Sealing mechanisms are installed at both ends of the valve core column to improve the airtightness of the entire device, avoid leakage caused by loose sealing, and the resulting equipment damage and failure, thereby improving the stability and reliability of the overall device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural schematic diagram of a Tesla valve type pipeline non-return device in an embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the Tesla valve type pipeline non-return device in the embodiment of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the non-return valve core of the Tesla valve type pipeline non-return device in the embodiment of the utility model;

[0026] Figure 4 It is a cross-sectional view of the through groove in the valve core column in the Tesla valve type pipeline non-return device in the embodiment of the utility model.

[0027] Figure numerals: 1. valve body; 11. valve inlet; 12. valve outlet; 13. control chamber; 131. left baffle; 132. right baffle; 2. check valve core; 21. valve core column; 211. through groove; 212. sealing mechanism; 22. driving rod; 3. driving mechanism. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the present invention, the present invention is now further described in conjunction with specific implementation methods.

[0029] Example:

[0030] like Figure 1~Figure 4 As shown, the utility model provides a Tesla valve type pipeline non-return device, comprising a valve body 1, a non-return valve core 2 arranged inside the valve body 1, and a driving mechanism 3 arranged outside the valve body 1 and detachably connected thereto.

[0031] Combination Figure 1 and Figure 2 As shown, the valve body 1 is provided with a valve inlet 11 and a valve outlet 12 connected to its cavity at both ends, and its two ends are detachably connected to the pipeline of the heat exchange station. The valve body 1 is also provided with a control chamber 13 connected to the cavity. The control chamber 13 is provided with a left baffle 131 and a right baffle 132 arranged relatively along the axial direction of the valve body 1. The left baffle 131 is arranged close to the valve inlet 11, and the right baffle 132 is arranged close to the valve outlet 12. Specifically, the left baffle 131 and the right baffle 132 are adapted arc-shaped baffles, and refer to Figure 2 As shown, there is an overlapping area between the projections of the left stop 131 and the right stop 132 along the axial direction of the valve body 1, so that the check valve core 2 can be sealed when it moves to the uppermost position. At this time, the valve inlet 11 and the valve outlet 12 are disconnected.

[0032] like Figure 2As shown, the check valve core 2 is movably arranged in the control chamber 13, so as to realize the opening and closing of the valve inlet 11 and the valve outlet 12 by the movement of the check valve core 2 in the direction perpendicular to the axis of the valve body 1. The check valve core 2 is provided with a valve core column 21 adapted to the left stopper 131 and the right stopper 132 of the control chamber 13, and a driving rod 22 connected to the valve core housing, and the valve core housing is movably arranged between the area surrounded by the left stopper 131 and the right stopper 132.

[0033] refer to Figure 3 As shown, sealing mechanisms 212 are provided at both ends of the valve core column 21. The sealing mechanism 212 is provided with at least one sealing ring, which can be any one of an O-type sealing ring, a V-type sealing ring, or a Y-type sealing ring to achieve a sealing and leak-proof effect.

[0034] Combination Figure 3 , Figure 4 As shown, the valve core column 21 is provided with a through groove 211 in the Tesla valve structure, and the through groove 211 runs through the valve core column 21 horizontally and is parallel to the axial direction of the valve body 1, that is, the through groove 211 connects the valve inlet 11 and the valve outlet 12, and the cross section of the through groove 211 is adapted to the structure of the Tesla valve channel to achieve the anti-backflow effect of the valve core column 21. The Tesla valve channel structure can effectively realize passive flow control in the channel, and it has a pressure drop characteristic related to the direction, forming an effect similar to a "fluid diode", that is, the flow resistance in one flow direction is higher than that in the other direction. Specifically, in this embodiment, the direction of the fluid flowing from the valve inlet 11 to the valve outlet 12 is consistent with the forward flow direction of the Tesla valve channel, and the direction of the fluid flowing from the valve outlet 12 to the valve inlet 11 is consistent with the reverse flow direction of the Tesla valve channel, so that the flow resistance from the valve outlet 12 to the valve inlet 11 is greater, thereby achieving the effect of non-return and anti-backflow. It should be noted that the Tesla valve structure is a mature existing technology, and its specific structure and principle will not be repeated here. At the same time, parameters such as the diversion angle, branch pipe diameter and number of valve pairs of the through groove 211 structure in this embodiment can be set according to parameters such as the pipe diameter of the valve body 1 and the size of the valve core column 21, and no further explanation will be given here.

[0035] refer to Figure 2 As shown, the height of the through groove 211 along the axial direction of the valve core column 21 is greater than the length of the overlapping area projected by the left baffle 131 and the right baffle 132 along the axial direction of the valve body 1, so that the fluid can flow to the valve outlet 12 through the valve inlet 11 via the through groove 211. At the same time, the inlet opening of the through groove 211 can be adjusted by adjusting the position of the valve core column 21, thereby adjusting the overall opening of the valve body 1, controlling the pressure, and realizing flow control of the fluid under high pressure, thereby realizing throttling of the fluid system.

[0036] like Figure 1 and Figure 2As shown, the driving mechanism 3 is detachably connected to the valve body 1, and the driving rod 22 of the check valve core 2 is connected to the driving mechanism 3 to drive the check valve core 2 to move in a direction perpendicular to the axis of the valve body 1, thereby realizing the connection and disconnection of the valve inlet 11 and the valve outlet 12.

[0037] Optionally, in some embodiments, the driving mechanism 3 is provided with any one of a driving motor, a driving cylinder, or a driving electromagnet. It should be noted that the driving motor, the driving cylinder, and the driving electromagnet are all mature existing technologies in this field, and their specific structures will not be described in detail here.

[0038] To sum up, the Tesla valve type pipeline check device provided by the utility model has a simple structure, can effectively solve the backflow phenomenon in the pipeline of the heat exchange station, avoid damage to the equipment of the heat exchange station caused by the backflow phenomenon, and prevent the fluid in the pipeline from backflowing and flowing back to other pipelines, thereby reducing the energy waste and loss caused thereby, and improving the resource utilization and heat exchange efficiency of the heat exchange station.

[0039] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A Tesla valve type pipeline non-return device, characterized in that: include: A valve body (1), wherein two ends of the valve body (1) are respectively provided with a valve inlet (11) and a valve outlet (12), and the valve body (1) is also provided with a control chamber (13) in communication with the cavity thereof; A check valve core (2), the check valve core (2) comprising a valve core column (21) movably arranged in the control chamber (13), the valve core column (21) being provided with a through groove (211) in the form of a Tesla valve structure, the through groove (211) penetrating the valve core column (21) transversely and being parallel to the axis of the valve body (1).

2. The Tesla valve type pipeline non-return device according to claim 1, characterized in that: The control chamber (13) is provided with a left baffle (131) and a right baffle (132) arranged opposite to each other, the left baffle (131) being arranged close to the valve inlet (11), and the right baffle (132) being arranged close to the valve outlet (12); There is an overlapping area between the projections of the left stopper (131) and the right stopper (132) along the axis direction of the valve body (1), and the valve core column (21) is movably arranged between the left stopper (131) and the right stopper (132).

3. The Tesla valve type pipeline non-return device according to claim 2, characterized in that: The height of the through groove (211) along the axial direction of the valve core column (21) is greater than the length of the overlapping area of ​​the projections of the left stop platform (131) and the right stop platform (132).

4. The Tesla valve type pipeline non-return device according to claim 2, characterized in that: The left baffle (131) and the right baffle (132) are compatible arc-shaped baffles.

5. The Tesla valve type pipeline non-return device according to claim 1, characterized in that: Both ends of the valve core column (21) are provided with sealing mechanisms (212), and the sealing mechanism (212) is provided with at least one sealing ring.

6. The Tesla valve type pipeline non-return device according to claim 5, characterized in that: The sealing ring is any one of an O-shaped sealing ring, a V-shaped sealing ring, or a Y-shaped sealing ring.

7. The Tesla valve type pipeline non-return device according to claim 1, characterized in that: It also comprises a driving mechanism (3), wherein the driving mechanism (3) is detachably connected to the valve body (1); The check valve core (2) is connected to the driving mechanism (3) to drive the valve core column (21) to move to realize the opening and closing of the valve inlet (11) and the valve outlet (12).

8. The Tesla valve type pipeline non-return device according to claim 7, characterized in that: The check valve core (2) is further provided with a driving rod (22) fixedly connected to the valve core column (21), and the driving rod (22) is connected to the driving mechanism (3).

9. The Tesla valve type pipeline non-return device according to claim 7, characterized in that: The driving mechanism (3) is provided with any one of a driving motor, a driving cylinder, or a driving electromagnet.

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