CN212299518U - Air bypass noise reduction assembly and centrifugal water chilling unit - Google Patents

Abstract

The utility model relates to a subassembly and centrifugal cooling water set of making an uproar fall in gas bypass, the subassembly of making an uproar falls in gas bypass includes bypass passageway and drain passageway, be used for circulating high-speed fluid in the bypass passageway, be equipped with the hydrojet hole on the lateral wall of bypass passageway, the drain passageway with hydrojet hole intercommunication, liquid in the drain passageway is followed the hydrojet hole gets into can atomize when in the bypass passageway, form vaporific liquid drop. The energy absorption and noise reduction effects of the mist-shaped liquid drops are utilized, so that the noise caused by the high-speed flow of the fluid in the bypass channel is effectively reduced, and the purpose of reducing the noise is finally achieved.

Description

Air bypass noise reduction assembly and centrifugal water chilling unit

Technical Field

The utility model relates to an air conditioning equipment technical field especially relates to subassembly and centrifugal cooling water set of making an uproar falls in gas bypass.

Background

The gas bypass pipeline is a bypass pipeline arranged between the evaporator and the condenser, and is mainly used for releasing the refrigerant in the condenser into the evaporator when the pressure between the evaporator and the condenser is higher, so that the pressure relief and unloading functions are realized. In the process of pressure relief and unloading, high-speed airflow circulating in the air bypass pipeline can generate large noise, and the user experience is seriously influenced. Based on this, how to reduce the noise in the gas bypass pipeline is particularly important for improving the service performance and market competitiveness of the gas bypass pipeline.

SUMMERY OF THE UTILITY MODEL

The utility model discloses noise is great in to general gas bypass pipeline, and serious influence is used for the problem of experience, has provided a gas bypass and has fallen subassembly and centrifugal cooling water set of making an uproar to the noise reduction.

The utility model provides an subassembly of making an uproar falls in gas bypass, includes bypass passageway and drain passageway, be used for the high-speed fluid of circulation in the bypass passageway, be equipped with the hydrojet hole on the lateral wall of bypass passageway, the drain passageway with hydrojet hole intercommunication, liquid in the drain passageway is followed hydrojet hole gets into can atomize when in the bypass passageway.

The above scheme provides an air bypass noise reduction assembly, through set up on the lateral wall of bypass passageway the hydrojet hole for when circulating high-speed fluid in the bypass passageway, liquid in the drain channel can pass through the hydrojet hole gets into in the bypass passageway, form vaporific liquid droplet in the bypass passageway. The energy absorption and noise reduction effects of the mist-shaped liquid drops are utilized, so that the noise caused by the high-speed flow of the fluid in the bypass channel is effectively reduced, and the purpose of reducing the noise is finally achieved.

In one embodiment, the diameter of the liquid spraying hole is 0.5 mm-0.8 mm.

In one embodiment, one end of the liquid ejecting hole directly communicated with the bypass channel is an outlet end, the liquid ejecting direction of the outlet end is a first direction, the flow direction of the fluid in the pipe section of the bypass channel provided with the liquid ejecting hole is a second direction, the first direction is obliquely arranged relative to the second direction, and the angle of the first direction obliquely arranged relative to the second direction is smaller than 90 °.

In one embodiment, the included angle between the first direction and the second direction is 30-45 °.

In one embodiment, the inlet aperture of the liquid guide channel is 16 mm-20 mm.

In one embodiment, the liquid spraying device further comprises an on-off solenoid valve, wherein the on-off solenoid valve is arranged on the bypass passage and is located upstream of the liquid spraying hole.

In one embodiment, the liquid spraying device comprises a bypass pipeline and a liquid spraying part, wherein the liquid spraying part comprises an inner pipe and a liquid guide pipe, the inner pipe is communicated with the bypass pipeline to form the side wall of the bypass channel, the liquid spraying hole is formed in the inner pipe, and a channel in the liquid guide pipe is the liquid guide channel.

In one embodiment, the number of the liquid spraying holes is multiple, the liquid spraying holes are evenly distributed at intervals in the circumferential direction of the inner pipe, one end of the liquid guide pipe, which is directly communicated with the inner pipe, is an annular shell, the other part of the liquid guide pipe is a liquid inlet pipe, the annular shell is sleeved outside the inner pipe, an annular installation cavity is defined by the annular shell and the inner pipe, and the liquid inlet pipe is communicated with the installation cavity.

In one embodiment, the liquid spraying part further comprises a liquid homogenizing ring, the liquid homogenizing ring is located in the installation cavity, the inner peripheral surface of the liquid homogenizing ring and the inner pipe are arranged at intervals to form a first accommodating cavity, the outer peripheral surface of the liquid homogenizing ring and the annular shell are arranged at intervals to form a second accommodating cavity, liquid homogenizing holes penetrating through the inner peripheral surface and the outer peripheral surface of the liquid homogenizing ring are formed in the liquid homogenizing ring, the liquid homogenizing holes are distributed at intervals in the circumferential direction of the liquid homogenizing ring, and the liquid inlet pipe is communicated with the second accommodating cavity.

In one embodiment, the number of the liquid spraying holes is multiple, the liquid spraying holes are uniformly distributed at intervals in the circumferential direction of the bypass channel, one end of the liquid guiding channel, which is used for being communicated with the liquid spraying holes, is an annular channel, and the annular channel surrounds the outside of a pipe section, on which the liquid spraying holes are arranged, of the bypass channel.

In one embodiment, a liquid homogenizing ring is arranged in the annular channel, the liquid homogenizing ring is sleeved outside a pipe section provided with the liquid spraying holes on the bypass channel, the outer peripheral surface of the liquid homogenizing ring and the side wall of the annular channel are arranged at intervals, the inner peripheral surface of the liquid homogenizing ring and the pipe section provided with the liquid spraying holes on the bypass channel are arranged at intervals, liquid homogenizing holes penetrating through the inner peripheral surface and the outer peripheral surface of the liquid homogenizing ring are arranged on the liquid homogenizing ring, the liquid homogenizing holes are multiple, and the liquid homogenizing holes are uniformly distributed at intervals in the circumferential direction of the liquid homogenizing ring.

A centrifugal water chilling unit comprises a condenser, an evaporator and the air bypass noise reduction assembly, wherein one end of a bypass channel is communicated with a high-pressure cavity of the condenser, and the other end of the bypass channel is communicated with a low-pressure cavity of the evaporator.

According to the centrifugal water chilling unit, the air bypass noise reduction assembly in any one embodiment is arranged between the condenser and the evaporator, pressure relief and unloading in the condenser are achieved, meanwhile, noise in a bypass channel can be effectively reduced, and the purpose of noise reduction is achieved.

In one embodiment, an inlet of the liquid guide channel is communicated with a liquid refrigerant area of the condenser.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a typical gas bypass line;

FIG. 2 is a schematic structural diagram of the air bypass noise reduction assembly according to the present embodiment;

FIG. 3 is a sectional view of a liquid ejection member according to the embodiment;

fig. 4 is a cross-sectional view of the liquid ejecting member according to the present embodiment from another angle of view.

Description of reference numerals:

10. an air bypass noise reduction assembly; 11. a bypass line; 111. switching on and off the electromagnetic valve; 112. a bypass channel; 12. a liquid spraying member; 121. an inner tube; 1211. a liquid ejection hole; 122. a catheter; 1221. an annular housing; 1222. a liquid inlet pipe; 1223. a first accommodating chamber; 1224. a second accommodating chamber; 1225. an inlet; 123. a liquid homogenizing ring; 1231. a homogenization hole; 124. a drainage channel; 20. a gas bypass line; 21. an electromagnetic valve.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

As shown in fig. 1, in a typical centrifugal chiller, an air bypass line 20 is disposed between an evaporator and a condenser, and when the pressure between the evaporator and the condenser is relatively high, the air bypass line 20 is conducted to release the pressure, so as to protect a compressor in the centrifugal chiller. The on-off of the gas bypass pipeline 20 is controlled by an electromagnetic valve 21 arranged on the gas bypass pipeline 20. Because high-speed airflow flows through the air bypass line 20, sound vibration is generated during pressure relief, and noise is generated.

To this end, in the present application, as shown in fig. 2, an air bypass noise reduction assembly 10 is provided, and the air bypass noise reduction assembly 10 includes a bypass passage 112, and the bypass passage 112 is used for communicating between an evaporator and a condenser and is used for circulating high-speed fluid during pressure relief, i.e. refrigerant circulating at high speed.

Further, as shown in fig. 2 and fig. 3, the air bypass noise reduction assembly 10 further includes a liquid guiding channel 124, a liquid spraying hole 1211 is disposed on a side wall of the bypass channel 112, and the liquid guiding channel 124 is communicated with the liquid spraying hole 1211. When high-speed fluid flows through the bypass channel 112, the liquid in the liquid guiding channel 124 enters the bypass channel 112 from the liquid spraying hole 1211, and the liquid in the liquid guiding channel 124 can be atomized to form mist-shaped liquid droplets when entering the bypass channel 112.

Specifically, a negative pressure is formed at the outlet of the liquid ejecting hole 1211 by the high-speed flow of the fluid in the bypass passage 112, and the liquid in the liquid ejecting hole 1211 and the liquid guiding passage 124 is sucked into the bypass passage 112. Alternatively, a pressurizing device may be disposed on the fluid guide channel 124, and the fluid in the fluid guide channel 124 may be pressurized by the pressurizing device to be forced into the bypass channel 112.

After the liquid in the liquid guiding channel 124 and the liquid spraying hole 1211 enters the bypass channel 112 to form mist-shaped liquid drops, the noise generated by the high-speed fluid in the bypass channel 112 is gradually consumed in the process of transmitting the mist-shaped liquid drops, so that the effect of reducing noise is achieved. By utilizing the energy absorption and noise reduction effects of the mist-like liquid drops, the noise caused by the high-speed flow of the fluid in the bypass passage 112 is effectively reduced, and the purpose of reducing the noise is finally achieved.

Moreover, when a negative pressure is formed at the outlet of the liquid spray hole 1211 by the high-speed flow of the fluid in the bypass passage 112, the liquid in the liquid spray hole 1211 and the liquid guide passage 124 is sucked into the bypass passage to form mist-like droplets. The amount of formation of the atomized droplets is directly influenced by the flow velocity of the fluid in the bypass channel 112, and when the flow velocity of the high-velocity fluid in the bypass channel 112 is high, the atomized droplets are sucked faster and more atomized. Thereby ensuring that noise in the bypass passage 112 is effectively reduced at different flow rates.

More specifically, the liquid in the liquid guiding channel 124 may be from the liquid refrigerant in the condenser. Or pour liquid from another separate storage device into the drainage channel 124.

Further, in one embodiment, as shown in fig. 3 and 4, in order to make the atomization effect of the mist droplets sprayed into the bypass passage 112 from the liquid spray hole 1211 better, the aperture of the liquid spray hole 1211 may be set to be 0.5mm to 0.8 mm.

Further, in one embodiment, as shown in fig. 3 and 4, the liquid ejecting holes 1211 are plural, and the plural liquid ejecting holes 1211 are uniformly spaced in the circumferential direction of the bypass passage 112. Therefore, the liquid in the liquid guide channel 124 can be sprayed into the bypass channel 112 from the periphery, so that the uniformity of spraying is improved, and the noise reduction effect is improved.

Further, in one embodiment, the diameter of the inlet 1225 of the fluid conducting channel 124 is 16mm to 20 mm. So that the liquid refrigerant in the condenser or the liquid in the additional storage device enters the liquid guiding channel 124 at a speed that satisfies the speed of the liquid sprayed from the liquid spraying hole 1211. In particular, when the aperture of the liquid spraying holes 1211 is set to be 0.5mm to 0.8mm, the number of the liquid spraying holes 1211 is 12, and the 12 liquid spraying holes 1211 are uniformly distributed at intervals in the circumferential direction of the bypass channel 112, the aperture of the inlet 1225 of the liquid guiding channel 124 is set to be 16mm to 20mm, so that the overall liquid inlet and outlet rates are reasonably matched.

Further, as shown in fig. 2, in one embodiment, the air bypass noise reduction assembly 10 further includes an on-off solenoid valve 111. The on-off solenoid valve 111 is provided on the bypass passage 112, and the on-off solenoid valve 111 is located upstream of the liquid discharge hole 1211. When pressure relief by using the air bypass noise reduction assembly 10 is required, the on-off solenoid valve 111 is opened, so that the bypass channel 112 is conducted, and at this time, liquid in the liquid spray hole 1211 on the downstream of the bypass channel 112 is sucked into the bypass channel 112 to form mist-like liquid drops, so as to achieve a noise reduction effect. And because the liquid spraying hole 1211 is located at the downstream of the on-off solenoid valve 111, when high-speed fluid passes through the on-off solenoid valve 111, the fluid is blocked by the on-off solenoid valve 111 and the vibration increases, and after the vibrato is enhanced, the mist liquid drops sprayed by the liquid spraying hole 1211 can reduce the enhanced vibrato and simultaneously enable the fluid to recover certain smoothness.

Further, as shown in fig. 3, in one embodiment, an end of the liquid ejecting hole 1211 directly communicating with the bypass passage 112 is an outlet end, and a liquid ejecting direction of the outlet end is a first direction. When the axis of the liquid ejecting hole 1211 is a straight line, the first direction is directed into the bypass passage 112 along the axial direction of the liquid ejecting hole 1211.

The flow direction of the fluid in the pipe section of the bypass passage 112 in which the liquid spray hole 1211 is provided is the second direction. The first direction is arranged obliquely relative to the second direction, and the angle of the first direction arranged obliquely relative to the second direction is less than 90 degrees. In other words, the liquid spraying direction of the liquid spraying hole 1211 follows the fluid flowing direction in the pipe section of the bypass channel 112 where the liquid spraying hole 1211 is located. Thereby, on the one hand, preventing the high-speed fluid in the bypass channel 112 from blocking the liquid in the liquid jet 1211; on the other hand, the flow process of the high-speed fluid in the bypass channel 112 can form an ejector tube effect, and the liquid in the liquid injection hole 1211 is accelerated to be injected into the bypass channel 112, so that the liquid injected from the liquid injection hole 1211 is atomized more sufficiently.

Further specifically, in one embodiment, the included angle a between the first direction and the second direction is 30 ° to 45 °.

In particular, the angle a between the first direction and the second direction may be 30 °, 40 ° or 45 °.

More specifically, in one embodiment, as shown in fig. 2-4, air bypass noise reduction assembly 10 includes a bypass line 11 and a spray 12. The spray member 12 comprises an inner tube 121 and a liquid guide tube 122, wherein the inner tube 121 is communicated with the bypass pipeline 11 to form a side wall of the bypass channel 112. In other words, the bypass passage 112 is a passage in a pipe formed by the inner pipe 121 communicating with the bypass pipe 11. The liquid spraying hole 1211 is disposed on the inner tube 121, a channel of the liquid guide tube 122 is the liquid guide channel 124, and the liquid guide tube 122 is communicated with the liquid spraying hole 1211.

In particular, the bypass line 11 may be divided into two sections, and the inner pipe 121 is connected between the two sections of the bypass line 11. With such an arrangement, the two ends of the bypass line 11 are communicated with the evaporator and the condenser, and the connection mode in the raw gas bypass line 20 can be adopted.

Further, as shown in fig. 3 and 4, in one embodiment, when the air bypass noise reduction assembly 10 includes a bypass line 11 and a spray 12. If the number of the liquid ejecting holes 1211 is plural, the plural liquid ejecting holes 1211 are uniformly spaced in the circumferential direction of the inner tube 121.

Further, as shown in fig. 3 and 4, in one embodiment, an end of the liquid guide tube 122 directly communicating with the inner tube 121 is an annular outer casing 1221, the annular outer casing 1221 is sleeved outside the inner tube 121, and an annular installation cavity is defined between the annular outer casing 1221 and the inner tube 121. The other part of the liquid guide tube 122 is a liquid inlet tube 1222, and the liquid inlet tube 1222 is communicated with the installation cavity.

The liquid in the liquid inlet pipe 1222 enters the installation cavity first, and then enters the liquid spraying hole 1211 from the installation cavity. When the liquid spraying holes 1211 are plural, the annular housing 1221 can wrap the circumferentially arranged liquid spraying holes 1211 inside, so that the liquid in the liquid inlet pipe 1222 can enter each liquid spraying hole 1211 through the installation cavity.

Alternatively, in another embodiment, the inner tube 121 is integrated with the bypass line 11, i.e. a complete tube. The annular housing 1221 is sleeved outside the pipe section of the complete pipe fitting, on which the liquid spraying hole 1211 is arranged, and the annular mounting cavity is defined by the annular housing 1221 and the pipe section, and the liquid inlet pipe 1222 is communicated with the mounting cavity.

Further, in one embodiment, as shown in fig. 3 and 4, the liquid spraying part 12 further comprises a liquid homogenizing ring 123, and the liquid homogenizing ring 123 is located in the mounting cavity. The inner peripheral surface of the liquid equalizing ring 123 is spaced from the inner tube 121 to form a first accommodating chamber 1223, and the outer peripheral surface of the liquid equalizing ring 123 is spaced from the annular housing 1221 to form a second accommodating chamber 1224. The liquid equalizing ring 123 is provided with a plurality of liquid equalizing holes 1231 penetrating through the inner circumferential surface and the outer circumferential surface of the liquid equalizing ring 123, and the plurality of liquid equalizing holes 1231 are uniformly distributed at intervals in the circumferential direction of the liquid equalizing ring 123. The liquid inlet pipe 1222 communicates with the second receiving chamber 1224.

The liquid in the liquid inlet pipe 1222 firstly reaches the second accommodating chamber 1224, then enters the first accommodating chamber 1223 through the liquid equalizing hole 1231, and then enters the inner pipe 121 through the liquid spraying hole 1211. The liquid equalizing ring 123 is arranged to make the liquid in the liquid inlet pipe 1222 be more uniformly distributed in the circumferential direction of the inner pipe 121, so that the mist-like liquid droplets sprayed into the inner pipe 121 from the liquid spraying holes 1211 are more uniform, and the situation that the mist-like liquid droplets are not uniformly distributed in the inner pipe 121 due to the fact that more mist-like liquid droplets are sprayed from the liquid spraying holes 1211 close to the liquid inlet pipe 1222 and less mist-like liquid droplets are sprayed from the liquid spraying holes 1211 far away from the liquid inlet pipe 1222 is avoided.

Specifically, the liquid equalizing ring 123 may be an annular plate, and then a plurality of liquid equalizing holes 1231 are formed in the annular plate. Alternatively, the liquid-equalizing ring 123 may be a filter element having a certain permeability, and the liquid-equalizing holes 1231 are pores of the filter element. The liquid in the second accommodating chamber 1224 can uniformly permeate into the first accommodating chamber 1223 around the filter element by virtue of the permeability of the filter element itself.

Alternatively, in another embodiment, the bypass passage 112 and the fluid conducting passage 124 may be integrated into one plate. In other words, passages are provided in the plate member in the communicating relationship of the bypass passage 112, the liquid ejecting hole 1211, and the liquid guide passage 124 described above. It will be understood that the bypass passage 112 is a complete passage, and is not interrupted by other passages.

Based on this, in one embodiment, the liquid ejecting holes 1211 are plural, and the plural liquid ejecting holes 1211 are uniformly spaced in the circumferential direction of the bypass passage 112. The end of the liquid guiding channel 124, which is used to communicate with the liquid spraying hole 1211, is an annular channel, similar to the installation cavity described above. The annular channel surrounds the pipe section of the bypass channel 112 on which the liquid spray hole 1211 is disposed. The liquid required for each of the liquid ejection holes 1211 to eject a mist of liquid droplets comes from the annular channel, which enables a relatively uniform distribution of liquid to each of the liquid ejection holes 1211.

Further, in one embodiment, to further improve the uniformity of the liquid obtained from each liquid spraying hole 1211, a liquid homogenizing ring 123 is further disposed in the annular channel, similar to the liquid homogenizing ring 123 located in the installation cavity. The liquid equalizing ring 123 is sleeved outside the pipe section of the bypass passage 112 provided with the liquid spraying hole 1211, and the outer peripheral surface of the liquid equalizing ring 123 and the side wall of the annular passage are arranged at intervals to form a space similar to the first accommodating cavity 1223. The inner peripheral surface of the liquid equalizing ring 123 and the pipe section of the bypass passage 112 provided with the liquid spraying holes 1211 are spaced to form a space similar to the second accommodating chamber 1224 described above. The liquid equalizing ring 123 is provided with a plurality of liquid equalizing holes 1231 penetrating through the inner circumferential surface and the outer circumferential surface of the liquid equalizing ring 123, and the plurality of liquid equalizing holes 1231 are uniformly distributed at intervals in the circumferential direction of the liquid equalizing ring 123.

So that the liquid in the annular channel can uniformly enter each liquid spraying hole 1211 through the distribution of the liquid equalizing ring 123, and finally the mist-like liquid drops sprayed into the bypass channel 112 are more balanced.

Further, in a further embodiment, a centrifugal chiller is provided, comprising a condenser, an evaporator and the air bypass noise reduction assembly 10, wherein one end of the bypass channel 112 is communicated with a high pressure cavity of the condenser, and the other end of the bypass channel 112 is communicated with a low pressure cavity of the evaporator.

The above scheme provides a centrifugal chiller, and the air bypass noise reduction assembly 10 according to any of the above embodiments is arranged between the condenser and the evaporator, so that the pressure relief and unloading function in the condenser is realized, and meanwhile, the noise in the bypass channel 112 can be effectively reduced, and the purpose of reducing noise is achieved.

More specifically, in one embodiment, the inlet 1225 of the fluid conducting channel 124 communicates with the liquid refrigerant region of the condenser. Specifically, a liquid refrigerant region is formed at the bottom of the condenser, and the liquid guide channel may be communicated with the liquid refrigerant region at the bottom of the condenser. The mist-like droplets sprayed into the bypass passage 112 by the liquid spray holes 1211 are formed by the liquid refrigerant in the condenser, so that the purity of the refrigerant in the bypass passage 112 is not affected.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (13)

1. The utility model provides an assembly of making an uproar falls in gas bypass, its characterized in that includes bypass passageway and drain passageway, be used for the high-speed fluid of circulation in the bypass passageway, be equipped with the hydrojet hole on the lateral wall of bypass passageway, the drain passageway with hydrojet hole intercommunication, liquid in the drain passageway is followed hydrojet hole gets into can atomize when in the bypass passageway.

2. The air bypass noise reduction assembly according to claim 1, wherein the diameter of the liquid spray hole is 0.5mm to 0.8 mm.

3. The air bypass noise reduction assembly according to claim 1, wherein an end of the liquid ejection hole directly communicating with the bypass channel is an outlet end, a liquid ejection direction of the outlet end is a first direction, a fluid flow direction in a pipe section of the bypass channel in which the liquid ejection hole is provided is a second direction, the first direction is obliquely arranged with respect to the second direction, and the first direction is obliquely arranged with respect to the second direction by an angle smaller than 90 °.

4. The air bypass noise reduction assembly according to claim 3, wherein an angle between the first direction and the second direction is between 30 ° and 45 °.

5. The air bypass noise reduction assembly according to claim 1, wherein an inlet aperture of the liquid guide channel is 16mm to 20 mm.

6. The gas bypass noise reduction assembly according to claim 1, further comprising a switching solenoid valve disposed on the bypass passage, the switching solenoid valve being located upstream of the liquid ejection hole.

7. The air bypass noise reduction assembly according to any one of claims 1 to 6, comprising a bypass line and a liquid injection member, wherein the liquid injection member comprises an inner tube and a liquid guide tube, the inner tube is communicated with the bypass line to form a side wall of the bypass channel, the liquid injection hole is formed in the inner tube, and the liquid guide tube is a channel of the liquid guide tube.

8. The air bypass noise reduction assembly according to claim 7, wherein the plurality of liquid injection holes are evenly distributed at intervals in the circumferential direction of the inner tube, one end of the liquid guide tube directly communicated with the inner tube is an annular housing, the other part of the liquid guide tube is a liquid inlet tube, the annular housing is sleeved outside the inner tube, an annular mounting cavity is defined between the annular housing and the inner tube, and the liquid inlet tube is communicated with the mounting cavity.

9. The air bypass noise reduction assembly according to claim 8, wherein the liquid injection member further comprises a liquid equalizing ring, the liquid equalizing ring is located in the mounting cavity, an inner peripheral surface of the liquid equalizing ring is spaced from the inner pipe to form a first accommodating cavity, an outer peripheral surface of the liquid equalizing ring is spaced from the annular housing to form a second accommodating cavity, liquid equalizing holes penetrating through the inner peripheral surface and the outer peripheral surface of the liquid equalizing ring are formed in the liquid equalizing ring, the liquid equalizing holes are distributed at equal intervals in the circumferential direction of the liquid equalizing ring, and the liquid inlet pipe is communicated with the second accommodating cavity.

10. The gas bypass noise reduction assembly according to any one of claims 1 to 6, wherein the plurality of liquid injection holes are uniformly distributed at intervals in a circumferential direction of the bypass channel, one end of the liquid guide channel, which is used for being communicated with the liquid injection holes, is an annular channel, and the annular channel surrounds outside a pipe section of the bypass channel, on which the liquid injection holes are arranged.

11. The gas bypass noise reduction assembly according to claim 10, wherein a liquid equalizing ring is disposed in the annular passage, the liquid equalizing ring is sleeved outside the pipe section provided with the liquid spraying holes in the bypass passage, the outer peripheral surface of the liquid equalizing ring and the side wall of the annular passage are spaced, the inner peripheral surface of the liquid equalizing ring and the pipe section provided with the liquid spraying holes in the bypass passage are spaced, the liquid equalizing ring is provided with a plurality of liquid equalizing holes penetrating through the inner peripheral surface and the outer peripheral surface of the liquid equalizing ring, and the plurality of liquid equalizing holes are uniformly distributed in the circumferential direction of the liquid equalizing ring at intervals.

12. A centrifugal chiller comprising a condenser, an evaporator and the air bypass noise reduction assembly of any of claims 1 to 11, the bypass channel having one end in communication with the high pressure chamber of the condenser and the other end in communication with the low pressure chamber of the evaporator.

13. The centrifugal chiller according to claim 12 wherein the inlet of the fluid-conducting channel communicates with the liquid refrigerant region of the condenser.

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