Silencing device for low-temperature trapping pump

Abstract

The utility model discloses a silencing device of a low-temperature trapping pump, and relates to the technical field of low-temperature trapping pumps. The silencer comprises a silencing pipe, a flow adjusting mechanism is arranged on one side of the silencing pipe, a transmission mechanism is arranged on the flow adjusting mechanism, a control mechanism is arranged on the outer side wall of the silencing pipe, a temperature regulating and controlling mechanism is arranged at the other end of the silencing pipe, and the temperature regulating and controlling mechanism is electrically connected with the control mechanism. A plurality of upper baffles are arranged at the upper end of the inner side wall of the silencing pipe, and lower baffles are arranged at the positions, located between every two adjacent upper baffles, of the lower end of the inner side wall of the silencing pipe. According to the silencer, the flow in a cooling system can be conveniently controlled to be changed, then a refrigerant can conveniently move to a cooling area of the cooling system to be cooled, when the flow of the refrigerant is increased and the refrigerant passes through the silencing pipe, the flowing mode of flowing refrigerant fluid can be changed into turbulent flow through the upper baffle and the lower baffle, and then the effect of reducing noise can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cryogenic trapping pumps, and particularly relates to a noise elimination device for a cryogenic trapping pump. Background Technique

[0002] At present, in the cooling system of a cryogenic trapping pump, it is usually to compress a cooling medium, and then absorb the temperature of the area to be cooled by releasing the cooling medium and causing it to expand. However, if the demand for the cooling medium in the cooling area is extremely large, the flow rate of the refrigerant in the pipeline will increase. When the flow rate of the refrigerant exceeds a certain speed, a very harsh sharp sound will appear, resulting in excessive noise of the cryogenic trapping pump. Therefore, a noise elimination device for a cryogenic trapping pump is proposed. Content of the Utility Model

[0003] The purpose of the utility model is to solve the problem that when the flow rate of the refrigerant exceeds a certain speed, a very harsh sharp sound will appear, resulting in excessive noise of the cryogenic trapping pump. The utility model provides a noise elimination device for a cryogenic trapping pump.

[0004] The utility model specifically adopts the following technical solutions to achieve the above purpose:

[0005] A noise elimination device for a cryogenic trapping pump includes a noise elimination pipe. A flow rate regulating mechanism is arranged on one side of the noise elimination pipe, and a transmission mechanism is arranged on the flow rate regulating mechanism. A control mechanism is arranged on the outer side wall of the noise elimination pipe. The other end of the noise elimination pipe is provided with a temperature regulating mechanism, and the temperature regulating mechanism is electrically connected to the control mechanism. A plurality of upper baffles are arranged on the upper inner side wall of the noise elimination pipe, and lower baffles are arranged between two adjacent upper baffles on the lower inner side wall of the noise elimination pipe.

[0006] Preferably, the flow rate regulating mechanism includes a connecting pipe. A rotating hole is opened on the side wall of the connecting pipe, and a supporting rotating shaft is rotatably installed in the rotating hole. One end of the supporting rotating shaft is fixedly installed with a flow limiting plate, and the other end of the supporting rotating shaft is fixedly installed with a gear ring.

[0007] Preferably, the transmission mechanism includes a protective housing. The protective housing is fixedly installed on the side wall of the connecting pipe, and an electric push rod is fixedly installed on the inner side wall of the protective housing. One end of the electric push rod is fixedly installed with a pushing rack, and the pushing rack is meshed with the gear ring.

[0008] Preferably, the control mechanism includes a support housing, one side of the support housing is fixedly installed on the side wall of the muffler pipe, a spring telescopic rod is fixedly installed inside the support housing, an electromagnet ring is fixedly sleeved on the rod sleeve of the spring telescopic rod, and a magnetic ring is fixedly sleeved on the rod body of the spring telescopic rod. A trigger switch is fixedly installed on the inner side wall of the support housing, and the trigger switch is electrically connected to the electric push rod.

[0009] Preferably, the temperature control mechanism includes a diversion pipe, one end of the diversion pipe is fixedly installed on the muffler pipe, a temperature sensor is fixedly installed on the side wall of the diversion pipe, a temperature controller is fixedly installed on the inner side wall of the support housing, and the temperature controller is electrically connected to the temperature sensor. The temperature controller is electrically connected to the electromagnet ring.

[0010] Preferably, one end of the spring telescopic rod is fixedly installed with a pressing block, and the pressing block is arranged to match the trigger switch.

[0011] The beneficial effects of the present utility model are as follows:

[0012] 1. In the present utility model, one end of the diversion pipe is connected to the cooling area of the cold air system in the pump. When the temperature sensor detects that the temperature in the cooling area rises beyond the limit, the temperature controller will energize the electromagnet ring, so that the electromagnet ring pushes the magnet ring and the spring telescopic rod forward. In this way, the spring telescopic rod can drive the pressing block to press the trigger switch, so that the trigger switch starts the electric push rod to drive the pushing rack to move. The pushing rack can drive the gear ring and the support shaft to rotate, so that the support shaft drives the flow limiting plate to adjust the angle, thus facilitating the control of the increase in the flow rate change in the connecting pipe, and further facilitating the movement of the refrigerant to the cooling area of the cooling system for cooling. At the same time, when the refrigerant flow rate increases and passes through the muffler pipe, the upper baffle and the lower baffle arranged will change the flow mode of the flowing refrigerant fluid into a turbulent flow, thereby achieving the effect of reducing noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the front view overall three-dimensional connection structure schematic diagram of the present utility model;

[0014] Figure 2 is the three-dimensional connection structure schematic diagram of the flow regulating mechanism and the muffler pipe in the present utility model;

[0015] Figure 3 is Figure 2 the enlarged structure schematic diagram at A in

[0016] Figure 4 is the partial sectional three-dimensional connection structure schematic diagram of the muffler pipe in the present utility model;

[0017] Figure 5 This is a schematic three - dimensional connection structure diagram of the transmission mechanism and the flow - regulating mechanism in the present utility model.

[0018] Reference numerals: 1, silencing pipe; 2, connecting pipe; 3, protective housing; 4, support housing; 5, diversion pipe; 6, temperature sensor; 7, electric push rod; 8, pushing rack; 9, gear ring; 10, spring telescopic rod; 11, electromagnet ring; 12, magnetic ring; 13, extrusion block; 14, temperature controller; 15, trigger switch; 16, upper baffle; 17, lower baffle; 18, rotation hole; 19, support rotating shaft; 20, flow - limiting plate. Detailed implementation manners

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the protection scope of the present utility model.

[0021] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, terms such as "first", "second", etc. are only used for differential description and cannot be understood as indicating or implying relative importance.

[0022] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "inner", "outer", "upper", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present utility model.

[0023] Such as Figures 1-5As shown in the figure, a noise reduction device for a cryogenic trapping pump includes a silencing pipe 1. At the upper end of the inner side wall of the silencing pipe 1, a plurality of upper baffles 16 are provided, and at the lower end of the inner side wall of the silencing pipe 1, lower baffles 17 are provided between two adjacent upper baffles 16. The provided upper baffles 16 and lower baffles 17 change the flow mode of the flowing refrigerant fluid into a turbulent flow, thereby being able to achieve the effect of reducing noise.

[0024] A flow regulating mechanism is provided on one side of the silencing pipe 1. The flow regulating mechanism includes a connecting pipe 2. A rotating hole 18 is formed on the side wall of the connecting pipe 2, and a supporting rotating shaft 19 is rotatably installed in the rotating hole 18. One end of the supporting rotating shaft 19 is fixedly installed with a flow limiting plate 20, and the other end of the supporting rotating shaft 19 is fixedly installed with a gear ring 9. By means of the provided flow limiting plate 20, the flow rate in the connecting pipe 2 can be controlled, thereby controlling the refrigerant flow rate in the cold air system at the source.

[0025] A transmission mechanism is provided on the connecting pipe 2. The transmission mechanism includes a protection housing 3. The protection housing 3 is fixedly installed on the side wall of the connecting pipe 2, and an electric push rod 7 is fixedly installed on the inner side wall of the protection housing 3. One end of the electric push rod 7 is fixedly installed with a pushing rack 8, and the pushing rack 8 is meshed with the gear ring 9. By means of the provided electric push rod 7 and pushing rack 8, it is convenient to control the rotation of the flow limiting plate 20.

[0026] A control mechanism is provided on the outer side wall of the silencing pipe 1. The control mechanism includes a supporting housing 4. One side of the supporting housing 4 is fixedly installed on the side wall of the silencing pipe 1, and a spring telescopic rod 10 is fixedly installed in the supporting housing 4. An electromagnet ring 11 is fixedly sleeved on the rod sleeve of the spring telescopic rod 10, and a magnetic ring 12 is fixedly sleeved on the rod body of the spring telescopic rod 10.

[0027] One end of the spring telescopic rod 10 is fixedly installed with a pressing block 13, and the pressing block 13 is matched with a trigger switch 15. By means of the provided pressing block 13, it is convenient to push the trigger switch 15 to start. A trigger switch 15 is fixedly installed on the inner side wall of the supporting housing 4, and the trigger switch 15 is electrically connected to the electric push rod 7.

[0028] The other end of the silencing pipe 1 is provided with a temperature control mechanism. The temperature control mechanism includes a diversion pipe 5. One end of the diversion pipe 5 is fixedly installed on the silencing pipe 1, and a temperature sensor 6 is fixedly installed on the side wall of the diversion pipe 5. A temperature controller 14 is fixedly installed on the inner side wall of the supporting housing 4, and the temperature controller 14 is electrically connected to the temperature sensor 6. The temperature controller 14 is electrically connected to the electromagnet ring 11. By means of the provided temperature controller 14 and temperature sensor 6, the temperature of the cold area can be monitored in a timely manner, thereby facilitating the adjustment of the refrigerant flow rate. Furthermore, while meeting the cooling effect, the refrigerant flow rate under normal conditions can be reduced, and thus the noise generated during the operation of the cooling system can be reduced.

[0029] In summary: when the refrigerant fluid passes through the silencing pipe 1, the upper baffle 16 and the lower baffle 17 provided will change the flow mode of the flowing refrigerant fluid into a turbulent flow, thereby reducing the noise generated inside the pipe. Further, one end of the diversion pipe 5 is connected to the cooling area of the cold air system in the pump. When the temperature sensor 6 detects that the temperature in the cooling area exceeds the limit, the temperature controller 14 will energize the electromagnet ring 11, so that the electromagnet ring 11 pushes the magnetic ring 12 and the spring telescopic rod 10 forward. In this way, the spring telescopic rod 10 will drive the extrusion block 13 to squeeze the trigger switch 15, causing the trigger switch 15 to start the electric push rod 7 to drive the push rack 8 to move. The push rack 8 can drive the gear ring 9 and the support rotating shaft 19 to rotate. In this way, the support rotating shaft 19 will drive the flow limiting plate 20 to adjust the angle, so as to facilitate the increase of the flow rate in the connection pipe 2, and further facilitate the movement of the refrigerant to the cooling area of the cooling system for cooling. When the temperature drops, the electromagnet ring 11 will be powered off under the control of the temperature controller 14, so that the spring telescopic rod 10 drives the extrusion block 13 to reset, and further causes the trigger switch 15 to reset. In this way, the electric push rod 7 can drive the flow limiting plate 20 to reset, reducing the flow rate of the refrigerant, thereby avoiding an increase in noise.

[0030] The above description enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A noise elimination device for a cryogenic pumping trap, characterized in that, It includes a muffler tube (1). A flow regulating mechanism is arranged on one side of the muffler tube (1), and a transmission mechanism is arranged on the flow regulating mechanism. A control mechanism is arranged on the outer side wall of the muffler tube (1). The other end of the muffler tube (1) is provided with a temperature regulating mechanism, and the temperature regulating mechanism is electrically connected to the control mechanism. A plurality of upper baffles (16) are arranged at the upper end of the inner side wall of the muffler tube (1), and lower baffles (17) are arranged between two adjacent upper baffles (16) at the lower end of the inner side wall of the muffler tube (1).

2. The noise elimination device for a cryogenic pumping trap according to claim 1, characterized in that, The flow regulating mechanism includes a connecting pipe (2). A rotating hole (18) is formed in the side wall of the connecting pipe (2), and a support rotating shaft (19) is rotatably installed in the rotating hole (18). One end of the support rotating shaft (19) is fixedly installed with a flow limiting plate (20), and the other end of the support rotating shaft (19) is fixedly installed with a gear ring (9).

3. The noise elimination device for a cryogenic pumping trap according to claim 2, characterized in that, The transmission mechanism includes a protection housing (3). The protection housing (3) is fixedly installed on the side wall of the connecting pipe (2), and an electric push rod (7) is fixedly installed on the inner side wall of the protection housing (3). One end of the electric push rod (7) is fixedly installed with a pushing rack (8), and the pushing rack (8) is meshed with the gear ring (9).

4. The noise elimination device for a cryogenic pumping trap according to claim 3, characterized in that, The control mechanism includes a support housing (4). One side of the support housing (4) is fixedly installed on the side wall of the muffler tube (1), and a spring telescopic rod (10) is fixedly installed in the support housing (4). An electromagnet ring (11) is fixedly sleeved on the rod sleeve of the spring telescopic rod (10), and a magnetic ring (12) is fixedly sleeved on the rod body of the spring telescopic rod (10). A trigger switch (15) is fixedly installed on the inner side wall of the support housing (4), and the trigger switch (15) is electrically connected to the electric push rod (7).

5. The noise elimination device for a cryogenic pumping unit according to claim 4, wherein The temperature regulating mechanism includes a diversion pipe (5). One end of the diversion pipe (5) is fixedly installed on the muffler tube (1), and a temperature sensor (6) is fixedly installed on the side wall of the diversion pipe (5). A temperature controller (14) is fixedly installed on the inner side wall of the support housing (4), and the temperature controller (14) is electrically connected to the temperature sensor (6). The temperature controller (14) is electrically connected to the electromagnet ring (11).

6. The noise elimination device for a cryogenic pumping trap according to claim 4, characterized in that, One end of the spring telescopic rod (10) is fixedly installed with a pressing block (13), and the pressing block (13) is matched with the trigger switch (15).

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