CN210197011U

CN210197011U - Fluid pipeline bypass structure

Info

Publication number: CN210197011U
Application number: CN201920401492.3U
Authority: CN
Inventors: Zhonglin Dai; 戴忠林
Original assignee: Wuxi Mai Tai Science And Technology Co Ltd
Current assignee: Wuxi Mai Tai Science And Technology Co Ltd
Priority date: 2019-03-27
Filing date: 2019-03-27
Publication date: 2020-03-27
Anticipated expiration: 2029-03-27

Abstract

The utility model provides a fluid pipeline bypass structure, which is used for pressure relief and flow distribution of a fluid pipeline of temperature control equipment so as to achieve the purpose of protecting a water pump; comprises a bypass structure body 21 and a fluid pipeline structure; the bypass structure body 21 is connected in the fluid pipeline structure; the fluid pipeline structure comprises a second ball valve 33 and a first ball valve 32 which are arranged at a pipeline liquid inlet and a pipeline liquid outlet; a first pressure sensor 29 disposed between the first ball valve 32 and the bypass structural body 21; a second pressure sensor 30 disposed between the second ball valve 33 and the bypass structural body 21; a controller 28 connected to the first pressure sensor 29, the second pressure sensor 30, and the bypass structure body 21, respectively; the utility model has the advantages that the passive pressure change sensing is changed into the active pressure change sensing, so as to improve the timeliness of response; the control of the stepping motor is changed, the pressure change can be accurately reflected, and the opening degree can be adjusted in time.

Description

Fluid pipeline bypass structure

Technical Field

The utility model relates to a temperature control equipment auxiliary device field especially relates to a fluid pipeline bypass structure.

Background

With the development of semiconductors and the wide application of temperature control equipment, a bypass structure of a fluid pipeline is generally added in the fluid pipeline of the temperature control equipment, and the purpose of pressure relief and shunt and water pump protection is mainly achieved.

In the bypass structure of the existing device, a mechanical structure is mostly adopted to achieve the purpose of bypass (as shown in fig. 3), and the structure mainly adjusts the position of the guide device 14 through the adjusting rod 16 to achieve the adjustment of the stroke of the spring 12, so as to adjust the opening minimum pressure of the guide rod 13, and in the actual operation process, the position of the guide rod 13 is continuously changed due to the fact that the pressure of the fluid is not constant. This presents two problems: 1. response lag, due to the presence of spring force, cannot sense changes in fluid pressure in real time; 2. the spring 12 is subject to fatigue losses during long periods of operation, and the spring force must be changed by adjusting the adjustment lever 16.

SUMMERY OF THE UTILITY MODEL

The utility model provides a fluid pipeline bypass structure for the reposition of redundant personnel of temperature control equipment fluid pipeline pressure release is in order to play the purpose of protection water pump.

The utility model provides a fluid pipeline bypass structure, which comprises a bypass structure main body 21 and a fluid pipeline structure;

the bypass structure body 21 is connected in the fluid pipeline structure;

the fluid pipeline structure comprises a second ball valve 33 and a first ball valve 32 which are arranged at a pipeline liquid inlet and a pipeline liquid outlet; a first pressure sensor 29 disposed between the first ball valve 32 and the bypass structural body 21; a second pressure sensor 30 disposed between the second ball valve 33 and the bypass structural body 21; and a controller 28 connected to the first pressure sensor 29, the second pressure sensor 30, and the bypass structure body 21, respectively.

Preferably, the bypass structure main body 21 further includes a transmission guide rod 22 disposed in the cavity 27, a sealing ring 23 disposed on the transmission guide rod 22, a motor 24 connected to the transmission guide rod 22, a liquid inlet 25 disposed at the lower end, and a liquid outlet 26 disposed at the side surface.

Preferably, the controller 28 is connected to the motor 24.

Preferably, the liquid inlet 25 is connected with a liquid inlet of a pipeline; the liquid outlet 26 is connected with a pipeline liquid outlet.

Preferably, the first pressure sensor 29 is connected with the liquid outlet 26; the second pressure sensor 30 is connected to the liquid inlet 25.

Preferably, the fluid pipeline structure further comprises a water pump 31 and a water tank 34; the water tank 34 and the water pump 31 are sequentially connected between the pipeline liquid inlet and the pipeline liquid outlet.

Preferably, the motor 24 is a stepper motor.

Preferably, the end of the transmission guide rod 22 is gradually reduced from the main body of the transmission guide rod 22 to the end.

Preferably, the diameter of the cavity 27 is larger than the diameters of the transmission guide rod 22 and the liquid inlet 25.

The utility model has the advantages that the passive pressure change sensing is changed into the active pressure change sensing, so as to improve the timeliness of response; the control of the stepping motor is changed, the pressure change can be accurately reflected, and the opening degree can be adjusted in time.

Drawings

FIG. 1 is a schematic view of the fluid pipeline structure of the present invention;

FIG. 2 is a schematic view of the main structure of the bypass structure of the present invention;

FIG. 3 is a schematic structural diagram of a bypass structure of a prior art apparatus;

in the figure, the position of the upper end of the main shaft,

11. a main body; 12. a spring; 13. a guide bar; 14. a guide device; 15. a seal ring; 16. adjusting a rod; 17. a bonnet;

21. a bypass structure body; 22. a drive guide rod; 23. a seal ring; 24. a motor; 25. a liquid inlet; 26. a liquid outlet; 27. a cavity; 28. a controller; 29. a first pressure sensor; 30. a second pressure sensor; 31. a water pump; 32. a first ball valve; 33. a second ball valve; 34. a water tank.

Detailed Description

The present invention will now be described in detail with reference to the drawings, which are provided for illustrative and explanatory purposes only and should not be construed as limiting the scope of the present invention in any way.

the bypass structure body 21 is connected in the fluid pipeline structure;

In this embodiment, preferably, the bypass structure main body 21 further includes a transmission guide rod 22 disposed in the cavity 27, a sealing ring 23 disposed on the transmission guide rod 22, a motor 24 connected to the transmission guide rod 22, a liquid inlet 25 disposed at a lower end, and a liquid outlet 26 disposed at a side surface.

Preferably, the controller 28 is connected to the motor 24.

In this embodiment, preferably, the liquid inlet 25 is connected with a liquid inlet of a pipeline; the liquid outlet 26 is connected with a pipeline liquid outlet.

In this embodiment, preferably, the first pressure sensor 29 is connected to the liquid outlet 26; the second pressure sensor 30 is connected to the liquid inlet 25.

In this embodiment, the fluid pipeline structure further includes a water pump 31 and a water tank 34; the water tank 34 and the water pump 31 are sequentially connected between the pipeline liquid inlet and the pipeline liquid outlet.

Preferably, in this embodiment, the motor 24 is a stepping motor.

In this embodiment, the end of the transmission guide rod 22 is preferably gradually reduced from the main body of the transmission guide rod 22 to the end.

In this embodiment, it is preferable that the diameter of the cavity 27 is larger than the diameters of the transmission guide rod 22 and the liquid inlet 25.

The pressure change of the inlet and outlet circuits is sensed by the second pressure sensor 30 and the first pressure sensor 29, the pressure signal is converted into an electric signal by the controller 28, the electric signal is transmitted to the stepping motor 24, and finally, the stroke of the guide rod 22 is transmitted by the stepping motor 24, so that the change of the flow of the bypass structure main body 21 is realized.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The above-mentioned embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A fluid line bypass structure comprises a bypass structure body (21) and a fluid line structure; the bypass structure body (21) is connected in the fluid pipeline structure;

it is characterized in that the preparation method is characterized in that,

the fluid pipeline structure comprises a second ball valve (33) and a first ball valve (32) which are arranged at a pipeline liquid inlet and a pipeline liquid outlet; a first pressure sensor (29) disposed between the first ball valve (32) and the bypass structure body (21); a second pressure sensor (30) disposed between the second ball valve (33) and the bypass structure body (21); and a controller (28) connected to the first pressure sensor (29), the second pressure sensor (30), and the bypass structure body (21), respectively.

2. The bypass structure of claim 1, wherein the bypass structure body (21) further comprises a transmission guide rod (22) disposed in the cavity (27), a sealing ring (23) disposed on the transmission guide rod (22), a motor (24) connected to the transmission guide rod (22), a liquid inlet (25) disposed at a lower end, and a liquid outlet (26) disposed at a side surface.

3. The fluid line bypass arrangement according to claim 2, wherein said controller (28) is connected to said motor (24).

4. A fluid line bypass arrangement according to claim 3, wherein the inlet (25) is connected to a line inlet; the liquid outlet (26) is connected with a pipeline liquid outlet.

5. The fluid line bypass arrangement according to claim 4, wherein said first pressure sensor (29) is connected to said outlet port (26); the second pressure sensor (30) is connected with the liquid inlet (25).

6. The fluid line bypass arrangement according to claim 5, further comprising a water pump (31) and a water tank (34); the water tank (34) and the water pump (31) are sequentially connected between the pipeline liquid inlet and the pipeline liquid outlet.

7. The fluid line bypass arrangement according to claim 6, wherein said motor (24) is a stepper motor.

8. The bypass structure according to claim 7, wherein the end of the drive rod (22) is tapered from the main body of the drive rod (22) to the end.

9. The fluid line bypass arrangement according to claim 8, wherein the diameter of the cavity (27) is larger than the diameter of the drive rod (22) and the inlet port (25).