Vibration damping device for condenser

Abstract

A vibration reduction device for a condenser, the condenser includes a condenser shell and a safety valve interface device, the safety valve interface device is arranged on the condenser shell, the interior of the safety valve interface device has a passage, the interior of the condenser shell has a storage space, and the vibration reduction device is arranged in the storage space of the condenser shell. The vibration reduction device includes a vibration reduction device shell, a cavity arranged in the vibration reduction device shell, and at least one cavity inlet arranged on the vibration reduction device shell. The passage of the safety valve interface device is in fluid communication with the storage space of the condenser through the cavity of the vibration reduction device. The present application greatly attenuates the vibration response of the safety valve interface device under flow-out or surge conditions through the arrangement of the vibration reduction device, thereby greatly improving the working condition adaptability of the safety valve interface device.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration systems, and in particular to a vibration reduction device for a condenser. Background Art

[0002] The compressor is a key component that determines the refrigeration capacity of the chiller and ensures the reliable operation of the unit. However, when the centrifugal compressor operates under low flow conditions, it often suffers from flow loss or even surge. In the case of flow loss and surge, the turbulent energy of the fluid on the exhaust side of the compressor is very strong. Therefore, when the compressor suffers from flow loss or surge, the turbulence on its exhaust side often affects the condenser located downstream of the compressor in the chiller, causing damage to the components in the condenser. Summary of the invention

[0003] Condensers often use safety valves as overpressure protection devices for equipment. When the pressure in the condenser exceeds the allowable value, the safety valve will automatically open to protect the condenser. The safety valve is often fixedly installed on the condenser shell through the support of the safety valve interface. The structure of the safety valve interface is simple, and its natural frequency basically falls within the wider turbulence frequency distribution range of the fluid on the exhaust side of the compressor under the flow-off condition. It is a relatively weak link in the condenser structure. When the compressor is operating under the flow-off condition, the safety valve interface is not only excited by the strong exhaust turbulence from the inside of the condenser, but also by the input of structural vibration energy transmitted from the condenser shell to the installation position of the safety valve interface. Under the input excitation of this dual energy, the safety valve interface produces a large amplitude vibration response at its own structural natural frequency, which greatly shortens the service life of the safety valve interface. One of the purposes of the present application is to provide a vibration reduction device that can effectively attenuate the turbulent energy directly acting at the inlet of the vibration reduction device.

[0004] In order to achieve the above-mentioned purpose, the first aspect of the present application is to provide a vibration damping device for a condenser, wherein the condenser includes a condenser shell and a safety valve interface device, wherein the safety valve interface device is arranged on the condenser shell, wherein the interior of the safety valve interface device has a passage, and the interior of the condenser shell has a storage space, wherein the vibration damping device is arranged in the storage space of the condenser shell, wherein the vibration damping device includes a vibration damping device shell, a cavity arranged in the vibration damping device shell, and at least one cavity inlet arranged on the vibration damping device shell; wherein the passage of the safety valve interface device is fluidically connected to the storage space of the condenser through the cavity of the vibration damping device.

[0005] As described above in the vibration reduction device for a condenser, a sound absorbing material is provided at the position of at least one cavity inlet among the at least one cavity inlet.

[0006] As described above, the vibration reduction device for a condenser is arranged in the condenser such that: the inlet of at least one cavity faces away from the refrigerant inlet of the condenser.

[0007] As described above, in the vibration damping device for a condenser, the cavity of the vibration damping device is defined by the condenser shell and the vibration damping device shell.

[0008] As described above, the vibration damping device for a condenser has a cavity defined by the vibration damping device shell, and a cavity outlet is also provided on the vibration damping device shell, and the passage of the safety valve interface device leads to the cavity of the vibration damping device through the cavity outlet.

[0009] As described above, for the vibration damping device for a condenser, the length direction of the vibration damping device shell is consistent with the length direction of the condenser shell, and the shape of the vibration damping device shell is a part of a cylinder or a part of a prism.

[0010] As described above, the vibration damping device for a condenser, the vibration damping device shell includes two side plates and an arc plate, the arc plate is formed by bending a rectangular flat plate inward, the two side plates are arranged in parallel on the inner side of the arc plate, and are respectively connected to the two side edges of the bent arc plate.

[0011] As described above, the vibration damping device for a condenser, the vibration damping device shell includes four side plates and a bottom plate, the four side plates are connected end to end to form four side walls of the vibration damping device, and the bottom plate is connected to the four side plates and covers the bottoms of the four side walls.

[0012] As described above, the vibration damping device for a condenser has a partition plate inside the housing of the vibration damping device, which divides the cavity of the vibration damping device into two sub-cavities. The partition plate is provided with at least one through hole, and the two sub-cavities are interconnected through the at least one through hole.

[0013] As described above in the vibration reduction device for a condenser, a sound absorbing material is arranged at the position of at least one through hole in the at least one through hole.

[0014] As described above, the vibration reduction device for the condenser is structurally arranged so that the vibration frequency range absorbed by the vibration reduction device includes the natural frequency of the safety valve interface device.

[0015] As described above in the vibration reduction device for a condenser, the safety valve interface device is a three-way valve device.

[0016] The second aspect of the present application is to provide a condenser, comprising a condenser shell, a safety valve interface device arranged on the condenser shell, and a vibration damping device, wherein the interior of the condenser shell has a accommodating space, the interior of the safety valve interface device has a passage, and the vibration damping device is any one of the vibration damping devices described above.

[0017] The condenser as described above also includes a compressor exhaust receiving port arranged on the condenser shell, and the compressor exhaust receiving port is connected to the accommodation space of the condenser, so that the gas exhausted from the compressor can flow to the accommodation space through the compressor exhaust receiving port; wherein, the at least one cavity inlet of the vibration damping device is arranged to deviate from or turn away from the flow path of the gas exhausted by the compressor directly flowing toward the vibration damping device.

[0018] As described above for the condenser, the safety valve interface device is arranged on the top of the condenser shell, and the vibration reduction device is connected to the inner wall of the top of the condenser shell.

[0019] The present application provides a vibration reduction device inside the condenser shell, and the vibration reduction device is located below the safety valve interface device. The vibration energy from the condenser shell and the turbulent energy inside the condenser shell are attenuated by the rigid structure of the vibration reduction device and the cavity inside the vibration reduction device, thereby achieving a vibration reduction effect on the safety valve interface device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1A A perspective view of a condenser 100 of the present application is shown;

[0021] Figure 1B Shows Figure 1A A partial enlarged view of the condenser 100 at the position of the safety valve 106;

[0022] Figure 2A Shows Figure 1A An axial cross-sectional view of the condenser 100;

[0023] Figure 2B Shows Figure 2A A partial enlarged view of the condenser 100 at the position of the vibration reduction device 201;

[0024] Figure 3 Shows Figure 2B A perspective view of the vibration reduction device 201;

[0025] Figure 4 A perspective view of a vibration reduction device 201 according to a second embodiment is shown;

[0026] Figure 5A Shows Figure 4A partial cross-sectional view of the vibration reduction device 201 in the axial direction of the condenser 100;

[0027] Figure 5B Shows Figure 4 A cross-sectional view of the vibration reduction device 201 in the radial direction of the condenser 100;

[0028] Fig. 6A A perspective view of a vibration reduction device 201 according to a third embodiment is shown;

[0029] Figure 6B Shows Fig. 6A A partial exploded view of the vibration reduction device 201;

[0030] Fig. 7A A perspective view of a vibration reduction device 201 according to a fourth embodiment is shown;

[0031] Figure 7B Shows Fig. 7A A partial cross-sectional view of the vibration reduction device 201 in the axial direction of the condenser 100;

[0032] Figure 7C Shows Fig. 7A A cross-sectional view of the vibration reduction device 201 in the radial direction of the condenser 100;

[0033] Fig. 8A A perspective view of a vibration reduction device 201 according to a fifth embodiment is shown;

[0034] Figure 8B Shows Fig. 8A A partial cross-sectional view of the vibration reduction device 201 in the axial direction of the condenser 100;

[0035] Figure 8C Shows Fig. 8A A cross-sectional view of the vibration reduction device 201 in the radial direction of the condenser 100;

[0036] Fig. 9A A perspective view of a vibration reduction device 201 according to a sixth embodiment is shown;

[0037] Fig. 9B Shows Fig. 9A A partial exploded view of the vibration reduction device 201;

[0038] Fig. 10A Shows Fig. 9A A partial cross-sectional view of the vibration reduction device 201 in the axial direction of the condenser 100;

[0039] Fig. 10B Shows Fig. 9A A cross-sectional view of the vibration reduction device 201 in the radial direction of the condenser 100. DETAILED DESCRIPTION

[0040] Figure 1A A perspective view of a condenser 100 according to a first embodiment of the present application is shown; Figure 1B Shows Figure 1A A partial enlarged view of the condenser 100 at the position of the safety valve 106. Figure 1A and 1B As shown, the condenser 100 includes a condenser shell 101, a safety valve interface device 102 and two safety valves 106. The condenser shell 101 includes a barrel 107, a compressor exhaust receiving port 105, a safety valve receiving port 108 and two tube sheets 103. The barrel 107 is generally cylindrical and has a receiving space 203 (see FIG. Figure 2A ), the length direction of the cylinder 107 is arranged in the horizontal direction, and the two tube sheets 103 are respectively arranged at the two ends of the length direction of the condenser shell 101. The compressor exhaust receiving port 105 and the safety valve receiving port 108 are both roughly tubular and are both located at the top of the cylinder 107. The compressor exhaust receiving port 105 is located in the middle position in the length direction of the cylinder 107, and is used to receive the refrigerant vapor (i.e., the refrigerant) from the exhaust side of the compressor; the safety valve receiving port 108 is located at the end position in the length direction of the cylinder 107, close to the tube sheet 103 on the right side of the condenser 100, and is used to carry the safety valve interface device 102. In this embodiment, the compressor exhaust receiving port 105 and the safety valve receiving port 108 are fixed to the cylinder 107 by welding. In other embodiments, the compressor exhaust receiving port 105, the safety valve receiving port 108 and the cylinder 107 can also be integrally formed.

[0041] like Figure 1B As shown, the safety valve interface device 102 is sleeved inside the safety valve receiving interface 108, and two safety valves 106 are respectively arranged at the upper end of the safety valve interface device 102. A passage is provided inside the safety valve interface device 102. In this embodiment, the safety valve interface device 102 is a three-way valve, which has three ports, and the three ports are interconnected. Among them, the opening of one port faces downward, is connected to the safety valve receiving interface 108, and is connected to the accommodation space 203 inside the cylinder 107 through the safety valve receiving interface 108. The openings of the two ports face upward, and two safety valves 106 are connected to the corresponding ones. The two safety valves 106 can be connected to the accommodation space 203 inside the cylinder 107 through the passage inside the three-way valve. Therefore, the safety valve 106 can always sense the pressure inside the condenser 100. When the operating pressure exceeds the allowable value, the safety valve 106 can automatically open and discharge the rated amount of medium according to the operating requirements of the condenser 100 to prevent the pressure inside the condenser 100 from continuing to rise and protect the normal operation of the condenser 100.

[0042] In order to meet the exhaust requirements inside the condenser 100, the present embodiment provides two safety valves 106 in the condenser 100, which are respectively connected to the two upward ports of the three-way valve, so that the two safety valves 106 are connected to the accommodation space 203 inside the condenser housing 101. In the present embodiment, the safety valve interface device 102 is set as a three-way valve. When the exhaust requirements of the condenser 100 can be met by using one safety valve 106, one safety valve 106 can also be set in the condenser 100. In order to match the setting of one safety valve 106, the safety valve interface device 102 can be set as a two-way valve in the present embodiment.

[0043] Figure 2A Shows Figure 1A An axial cross-sectional view of the condenser 100 is shown; Figure 2B Shows Figure 2A A partial enlarged view of the condenser 100 at the position of the vibration reduction device 201. For the convenience of illustration, Figure 2A and Figure 2B The safety valve interface device 102 and the safety valve 106 are omitted. In addition, it should be noted that Figure 2A and Figure 2B The vibration reduction device 201 shown is the vibration reduction device of the first embodiment of the present application. Figure 2A As shown, a receiving space 203 is formed inside the condenser shell 101, and a compressor exhaust passage 206 is provided inside the compressor exhaust receiving port 105, and the compressor exhaust passage 206 is communicated with the receiving space 203, so that the refrigerant vapor from the compressor exhaust side can enter the receiving space 203 inside the condenser shell 101 through the compressor exhaust passage 206 inside the compressor exhaust receiving port 105. The safety valve receiving port 108 has a receiving passage 207 inside for accommodating the safety valve interface device 102. In this embodiment, the safety valve receiving port 108 and the safety valve interface device 102 are fastened together by threaded connection, and in other embodiments, other connection methods may also be used.

[0044] like Figure 2BAs shown, the vibration damping device 201 of the first embodiment is arranged inside the condenser shell 101, below the safety valve receiving interface 108. The vibration damping device 201 includes a vibration damping device shell 202, a cavity 204 and a cavity inlet 205. The cavity 204 is arranged inside the vibration damping device shell 202, and the cavity inlet 205 is arranged on the vibration damping device shell 202. The top end of the vibration damping device 201 is tightly attached to the top surface of the condenser shell 101, and the top surface of the condenser shell 101 and the vibration damping device shell 202 jointly define the cavity 204 of the vibration damping device 201. The receiving channel 207 inside the safety valve receiving interface 108 penetrates the condenser shell 101, so that the receiving channel 207 is connected with the cavity 204 of the vibration damping device 201. In addition, the cavity inlet 205 is provided so that the cavity 204 of the vibration reduction device 201 is connected to the accommodation space 203 inside the condenser shell 101, so that the receiving channel 207 of the safety valve receiving interface 108 can be connected to the accommodation space 203 of the condenser shell 101 through the cavity 204 of the vibration reduction device 201. Figure 1A and 1B It can be seen that the above arrangement enables the two safety valves 106 to be connected to the accommodating space 203 of the condenser shell 101 through the three-way valve carried on the safety valve receiving interface 108 .

[0045] Figure 3 Shows Figure 2B A three-dimensional diagram of the vibration reduction device 201. Figure 3As shown, the vibration damping device housing 202 includes two side plates 209 and an arc plate 208. The arc plate 208 is formed by bending a rectangular flat plate inward, and constitutes the bottom and part of the side of the vibration damping device 201. Two opposite side edges of the four sides of the rectangular flat plate are bent to form arcs, forming two arc side edges 303. The other two opposite side edges are straight lines, forming two straight side edges 304, and the two corresponding side portions extend upward after the rectangular flat plate is bent, so that the two straight side edges 304 form the top of the vibration damping device. Both side plates 209 are flat plates, arranged parallel to each other on one side of the bending of the arc plate 208, and respectively connected to the two arc side edges 303 of the arc plate 208. The side plate 209 is convex and includes two upper and lower arc edges, and the lower arc line 302 has a greater curvature than the upper arc line 301. The lower arc line 302 matches the arc plate 208, so that the two side panels 209 can be snugly connected to the two arc side edges 303 of the arc plate 208; the upper arc line 301 matches the inner surface of the condenser shell 101, so that the two side panels 209 can be connected to the top of the inner surface of the condenser shell 101. The above-mentioned arrangement of the two side panels 209 and one arc plate 208 makes the shape of the vibration damping device shell 202 similar to a part of a cylinder. The cavity inlet 205 is arranged on the side panel 209 on the right side of the vibration damping device shell 202. In this embodiment, the cavity inlet 205 is formed by a sleeve that is internally connected to the cavity 204, and the sleeve is arranged on the outer surface of the side panel 209. In other embodiments, a hole can also be directly opened in the side panel 209 to form the cavity inlet 205. Figure 2A and 2B It can be seen that when the vibration damping device 201 is installed on the condenser shell 101, the length direction of the vibration damping device 201 is consistent with the length direction of the cylinder 107, the two straight side edges 304 at the top of the arc plate 208 are fitted on the top of the condenser shell 101 along the length direction of the cylinder 107, and the opening of the cavity inlet 205 faces the tube sheet 103 on the right side of the condenser 100.

[0046] Combination Figures 1A to 3It can be seen that when the condenser 100 is working, the compressor exhaust receiving port 105 receives the refrigerant vapor discharged from the exhaust side of the compressor (not shown in the figure), and the refrigerant vapor from the compressor enters the compressor exhaust passage 206 and directly flows to the accommodation space 203 in the condenser 100. If the compressor is out of flow or surges, the refrigerant vapor discharged by it also has strong turbulent energy. At this time, the condenser 100 located downstream of the compressor will not only be affected by the vibration of the compressor, but also by the exhaust turbulence. In the case of compressor out of flow, the turbulence frequency distribution on the exhaust side of the compressor is relatively wide, and the natural frequency of the safety valve interface device 102 installed on the condenser shell 101 will also fall within the distribution range of the turbulence frequency. Therefore, the safety valve interface device 102 is not only excited by the strong turbulence in the condenser accommodation space 203, but also by the input of the structural vibration energy transmitted by the condenser shell 101. Under the input excitation of this dual energy, the safety valve interface device 102 produces a large amplitude vibration response at its own structural natural frequency, which greatly shortens the service life of the safety valve interface device 102.

[0047] The present application sets the safety valve receiving port 108 at the position of the tube sheet 103 near the end of the condenser 100, in order to utilize the strong rigidity at the position of the tube sheet 103 to reduce the impact of vibration on the safety valve interface device 102 installed in the safety valve receiving port 108. In order to further attenuate the impact of compressor vibration and exhaust turbulence on the safety valve interface device 102, the present application sets a vibration reduction device 201 below the safety valve interface device 102, which can not only use the cavity 204 in the vibration reduction device 201 to attenuate the turbulence in the condenser accommodation space 203, but also use the vibration reduction device shell 202 to locally enhance the rigidity of the condenser shell 101 below the safety valve interface device 102, effectively reducing the vibration response of the safety valve interface device 102, thereby greatly improving the working condition adaptability of the safety valve interface device 102. In order to avoid the impact of the vibration reduction device 201 on the exhaust function of the safety valve 106, the present application sets the cross section of the cavity inlet 205 to be larger than the cross section of the passage in the safety valve interface device 102 at the inlet position. In addition, in order to enhance the vibration reduction effect of the vibration reduction device 201, in some embodiments, the vibration reduction device 201 controls relevant parameters such as the size of the cavity 204, the position of the cavity inlet 205, and the relative position of the cavity 204 and the safety valve interface device 102, so that the pulsation frequency band mainly eliminated by the vibration reduction device 201 is consistent with the natural frequency of the safety valve interface device 102, so that the vibration reduction device 201 can attenuate the natural frequency of the safety valve interface device 102.

[0048] Reference Figure 2A and 2BIt can be seen that since the compressor exhaust receiving port 105 is arranged at the middle position in the length direction of the condenser shell 101, when the condenser 100 is working, the refrigerant vapor entering the condenser 100 from the compressor exhaust receiving port 105 will flow toward the left or right tube sheet 103 along the length direction of the condenser shell 101. In order to ensure the working efficiency of the condenser 100 and prevent the refrigerant vapor that has not been condensed by the condenser 100 from directly entering the cavity 204 of the vibration reduction device 201, in this embodiment, the cavity inlet 205 of the vibration reduction device 201 is arranged to be away from the flow path of the refrigerant vapor flowing directly from the compressor exhaust receiving port 105 to the vibration reduction device 201, that is, the cavity inlet 205 is arranged to face the tube sheet 103 on the right side. In other embodiments, the cavity inlet 205 can also be set to deviate from the flow path of the refrigerant vapor directly flowing from the compressor exhaust receiving port 105 to the vibration damping device 201. For example, the cavity inlet 205 can be set on the arc plate 208 of the vibration damping device shell 202 so that the cavity inlet 205 faces the radial direction of the cylinder 107, as long as the refrigerant vapor from the compressor exhaust receiving port 105 can be prevented from directly entering the interior of the vibration damping device 201.

[0049] The bottom of the vibration damping device 201 of the first embodiment is arc-shaped. This structure enables the vibration damping device 201 to have a smaller size in the vertical direction, thereby effectively reducing the space occupied by the vibration damping device 201 in the vertical direction inside the condenser shell 101, and is more suitable for use in condensers 100 with smaller accommodating space 203.

[0050] Figure 4 FIG. 2 shows a perspective view of a vibration reduction device 201 according to a second embodiment. Figure 3 In the first embodiment, the shape of the vibration reduction device housing 202 is set to be similar to a part of a cylinder. Figure 4 The shape of the vibration damping device housing 202 shown is similar to a portion of a prism. Figure 4As shown, the vibration damping device 201 includes a vibration damping device housing 202, a cavity 204 and a cavity inlet 205, wherein the cavity 204 is arranged inside the vibration damping device housing 202, and the cavity inlet 205 is arranged on the vibration damping device housing 202. The vibration damping device housing 202 includes four side panels 209 and a bottom plate 401, wherein the four side panels 209 and the bottom plate 401 are flat plates. The four side panels 209 are connected end to end in sequence to form four side walls of the vibration damping device housing 202, and two adjacent side panels 209 are perpendicular to each other. The bottom plate 401 is rectangular and connected to the lower ends of the four side panels 209. The top edges of two of the four side panels 209 that are arranged opposite to each other are straight lines and are arranged along the axial direction of the condenser housing 101; the other two side panels 209 that are arranged opposite to each other are arranged in a direction perpendicular to the axial direction of the cylinder 107, and their top edges are upwardly convex arcs for matching the arc-shaped inner surface of the cylinder 107. The cavity inlet 205 is disposed on a side plate 209 on one side of the vibration reduction device housing 202. In this embodiment, the cavity inlet 205 is disposed on a side plate 209 whose top edge is a straight line. In other embodiments, the cavity inlet 205 may also be disposed on a side plate 209 whose top edge is an arc. Similar to the cavity inlet 205 of the first embodiment, the cavity inlet 205 of the second embodiment is also tubular and disposed on the outer surface of the side plate 209. In other embodiments, a hole may be directly opened on the side plate 209 to form the cavity inlet 205.

[0051] Figure 5A Shows Figure 4 A partial cross-sectional view of the vibration reduction device 201 in the axial direction of the condenser 100; Figure 5B Shows Figure 4 A cross-sectional view of the vibration reduction device 201 in the radial direction of the condenser 100. Figure 5A and 5B The structure of the condenser shell 101 shown is similar to Figures 1A to 2B The structure of the condenser shell 101 in FIG. Figure 5A As shown, the side plate 209 with a straight top edge is arranged along the axial direction of the condenser shell 101; Figure 5B As shown, the side plate 209 with an arc top edge is arranged in a direction perpendicular to the axial direction of the condenser shell 101. Figure 5A and 5B It can be seen that the above configuration of the vibration reduction device 201 enables its top end to be closely attached to the top surface of the condenser shell 101 , and the top surface of the condenser shell 101 and the vibration reduction device shell 202 together define a cavity 204 of the vibration reduction device 201 .

[0052] The vibration reduction device 201 of the second embodiment uses a plurality of flat plates to construct the vibration reduction device housing 202, and the cavity 204 formed by the plurality of flat plates can also play a role in vibration reduction for the safety valve interface device 102. The structural arrangement of the plurality of flat plates makes the manufacturing method of the vibration reduction device 201 of the second embodiment simpler, effectively reduces the production cost of the vibration reduction device 201, and is more suitable for the condenser 100 with sufficient accommodation space 203. In order to avoid the influence of the vibration reduction device 201 on the exhaust function of the safety valve 106, the vibration reduction device 201 of the second embodiment also sets the cross section of the cavity inlet 205 to be always larger than the cross section of the passage in the safety valve interface device 102 at the inlet position. In addition, the vibration reduction device 201 of the second embodiment can also set the direction of the cavity inlet 205 to be opposite to the flow path of the refrigerant vapor flowing directly from the compressor exhaust receiving port 105 to the vibration reduction device 201, as in the vibration reduction device 201 of the first embodiment, or set the direction of the cavity inlet 205 to be opposite to the flow path of the refrigerant vapor flowing directly from the compressor exhaust receiving port 105 to the vibration reduction device 201.

[0053] Fig. 6A A perspective view of a vibration reduction device 201 according to a third embodiment is shown; Figure 6B Shows Fig. 6A Partial exploded view of the vibration reduction device 201. Fig. 6A and 6B As shown, the external structure of the vibration reduction device housing 202 in the third embodiment is substantially the same as that of the vibration reduction device housing 202 in the second embodiment, and both are composed of four side plates 209 and a bottom plate 401, so that the external shape of the vibration reduction device housing 202 is similar to a part of a prism. The difference is that the vibration reduction device 201 in the third embodiment is further provided with a partition 601 in the cavity 204 of the vibration reduction device housing 202. The partition 601 is also made of a rectangular flat plate, and is arranged above the bottom plate 401 in parallel with the bottom plate 401, and the four sides of the partition 601 are respectively connected to the four side plates 209. The above-mentioned arrangement of the partition 601 divides the cavity 204 into two sub-cavities, namely, an upper cavity 602 and a lower cavity 603. A through hole 604 is also provided on the partition 601, and the arrangement of the through hole 604 enables the upper cavity 602 and the lower cavity 603 to communicate with each other. In this embodiment, a through hole 604 is provided on the partition 601, and the through hole 604 is circular. In other embodiments, other numbers of through holes 604 may be provided, for example, two, three, etc.

[0054] The installation method of the vibration damping device 201 of the third embodiment in the condenser shell 101 is exactly the same as that of the vibration damping device 201 of the second embodiment. When the vibration damping device 201 of the third embodiment is installed in the condenser shell 101, the top of the condenser shell 101 and the vibration damping device shell 202 jointly define the upper cavity 602, and the lower cavity 603 is defined by the vibration damping device shell 202 itself. The provision of the partition 601 can enhance the attenuation of the turbulence and vibration originating from the compressor by the vibration damping device 201. In order to avoid the influence of the vibration damping device 201 on the exhaust function of the safety valve 106, the third embodiment not only needs to set the cross section of the cavity inlet 205 to be larger than the cross section of the passage in the safety valve interface device 102 at the inlet position, but also needs to set the total cross section of the through hole 604 to be larger than the cross section of the passage in the safety valve interface device 102 at the inlet position.

[0055] Fig. 7A A perspective view of a vibration reduction device 201 according to a fourth embodiment is shown; Figure 7B Shows Fig. 7A A partial cross-sectional view of the vibration reduction device 201 in the axial direction of the condenser 100; Figure 7C Shows Fig. 7A A cross-sectional view of the vibration reduction device 201 in the radial direction of the condenser 100. Fig. 7A and 7B As shown, the external structure of the vibration reduction device housing 202 in the fourth embodiment is substantially the same as that of the vibration reduction device housing 202 in the second embodiment, and both are composed of four side panels 209 and a bottom plate 401, so that the external shape of the vibration reduction device housing 202 is similar to a part of a prism. The difference is that the vibration reduction device 201 in the fourth embodiment is provided with a plurality of cavity inlets 205 on the bottom plate 401. The plurality of cavity inlets 205 are all in the shape of long strips, and are arranged side by side on the bottom plate 401, and sound absorbing materials are also provided at the positions of the cavity inlets 205 to enhance the vibration attenuation function of the vibration reduction device 201. In this embodiment, six cavity inlets 205 are provided on the bottom plate 401. In other embodiments, other numbers of cavity inlets 205 may also be provided, for example, five, seven, etc.

[0056] like Fig. 7A and 7BAs shown, a plurality of strip openings 701 are provided on the bottom plate 401, and a baffle 702 is provided below the strip opening 701, and the baffle 702 extends along the length direction of the strip opening 701. One long side and two ends in the length direction of the baffle 702 are connected to the bottom plate 401, wherein one long side of the baffle 702 is connected to one long side of the strip opening 701, and the two ends in the length direction of the baffle 702 are connected to two wide sides of the strip opening 701. The baffle 702 as a whole extends obliquely downward from the plane where the bottom plate 401 is located, so that another long side of the baffle 702 extending outward and another long side of the strip opening 701 together form an opening, that is, constitute the cavity entrance 205 of the vibration reduction device 201. In this embodiment, the sound absorbing material is pasted on the inner wall of the baffle 702, and in other embodiments, other methods can also be used to fix the sound absorbing material at the position of the cavity entrance 205.

[0057] like Figure 7B and 7C As shown, the installation method of the vibration reduction device 201 of the fourth embodiment in the condenser shell 101 is exactly the same as that of the vibration reduction device 201 of the second embodiment. When the vibration reduction device 201 of the fourth embodiment is installed in the condenser shell 101, the top of the condenser shell 101 and the vibration reduction device shell 202 jointly define the cavity 204. Since the cavity inlet 205 is arranged on the bottom plate 401, the above arrangement can naturally prevent the refrigerant vapor from the compressor exhaust receiving port 105 from directly flowing into the vibration reduction device 201. When the condenser 100 is in working state, the turbulent flow in the condenser 100 can enter the vibration reduction device 201 through the six cavity inlets 205, and the turbulent flow is attenuated by both the cavity structure and the sound absorbing material. In order to avoid the influence of the vibration reduction device 201 on the exhaust function of the safety valve 106, the fourth embodiment sets the total cross-section of the multiple cavity inlets 205 to be larger than the cross-section of the passage in the safety valve interface device 102 at the inlet position.

[0058] Fig. 8A A perspective view of a vibration reduction device 201 according to a fifth embodiment is shown; Figure 8B Shows Fig. 8A A partial cross-sectional view of the vibration reduction device 201 in the axial direction of the condenser 100; Figure 8C Shows Fig. 8A A cross-sectional view of the vibration reduction device 201 in the radial direction of the condenser 100. Fig. 8A , 8BAs shown in FIG. 8C , the external structure of the vibration damping device housing 202 in the fifth embodiment is substantially the same as that of the vibration damping device housing 202 in the fourth embodiment, and both are composed of four side panels 209 and a bottom panel 401, so that the external shape of the vibration damping device housing 202 is similar to a part of a prism. Unlike the vibration damping device 201 in the fourth embodiment, which is provided with a plurality of elongated cavity inlets 205 on the bottom panel 401, the vibration damping device 201 in the fifth embodiment is provided with a plurality of elongated cavity inlets 205 on two oppositely arranged side panels 209. In this embodiment, there are six cavity inlets 205, all of which are provided on two side panels 209 with straight top edges, wherein three cavity inlets 205 are provided on each side panel 209, and the three cavity inlets 205 are arranged side by side. In other embodiments, other numbers of cavity inlets 205 may also be provided, for example, five, seven, etc.

[0059] like Fig. 8A and 8B As shown, two side plates 209 with straight top edges are provided with a plurality of strip openings 701, and baffles 702 are provided on the outside of the strip openings 701, and the baffles 702 extend along the length direction of the strip openings 701. One long side and two ends in the length direction of the baffle 702 are connected to the corresponding side plates 209, wherein one long side of the baffle 702 is connected to one long side of the strip opening 701, and the two ends in the length direction of the baffle 702 are connected to two wide sides of the strip opening 701. The baffle 702 as a whole extends outward and downward from the plane where the corresponding side plate 209 is located, so that the other long side of the baffle 702 extending outward and the other long side of the strip opening 701 together form an opening, that is, constitute the cavity entrance 205 of the vibration reduction device 201. A sound absorbing material for attenuating pulsation is provided at the cavity entrance 205 . In this embodiment, the sound absorbing material is attached to the inner wall of the baffle 702 . In other embodiments, the sound absorbing material may be fixed at the cavity entrance 205 in other ways.

[0060] like Figure 8B and 8CAs shown, the installation method of the vibration reduction device 201 of the fifth embodiment in the condenser shell 101 is exactly the same as that of the vibration reduction device 201 of the second embodiment. When the vibration reduction device 201 of the fifth embodiment is installed in the condenser shell 101, the top of the condenser shell 101 and the vibration reduction device shell 202 jointly define the cavity 204. Since the side plate 209 with a straight top edge is arranged along the axial direction of the condenser shell 101, and the multiple cavity inlets 205 are arranged on the two side plates 209 with straight top edges, the multiple long strip cavity inlets 205 are extended along the axial direction of the condenser shell 101, and the multiple openings formed by the cavity inlets 205 are all facing the radial direction of the condenser shell 101. The above arrangement can naturally prevent the refrigerant vapor from the compressor exhaust receiving port 105 from directly flowing into the vibration reduction device 201. When the condenser 100 is in operation, the turbulent flow in the condenser 100 can enter the vibration reduction device 201 through the six cavity inlets 205, and the vibration reduction device 201 can attenuate the turbulent flow through the cavity structure and the sound absorbing material. In order to avoid the influence of the vibration reduction device 201 on the exhaust function of the safety valve 106, the fifth embodiment sets the total cross-section of the multiple cavity inlets 205 to be larger than the cross-section of the passage in the safety valve interface device 102 at the inlet position.

[0061] Fig. 9A A perspective view of a vibration reduction device 201 according to a sixth embodiment is shown; Fig. 9B Shows Fig. 9A Partial exploded view of the vibration reduction device 201. Fig. 9A and 9BAs shown, the external structure of the vibration reduction device housing 202 in the sixth embodiment is substantially the same as that of the vibration reduction device housing 202 in the fourth embodiment, and both are composed of four side plates 209 and a bottom plate 401, so that the external shape of the vibration reduction device housing 202 is similar to a part of a prism, and a plurality of long strip-shaped cavity entrances 205 are provided on the bottom plate 401, and the cavity entrances 205 are composed of strip-shaped openings 701 and baffles 702 arranged below the strip-shaped openings 701. The difference is that the vibration reduction device 201 in the sixth embodiment is further provided with a partition 601 in the cavity 204 of the vibration reduction device housing 202. The partition 601 is also made of a rectangular flat plate, and is arranged above the bottom plate 401 in parallel with the bottom plate 401, and the four sides of the partition 601 are respectively connected to the four side plates 209. The above-mentioned arrangement of the partition 601 divides the cavity 204 into two sub-cavities, namely, an upper cavity 602 and a lower cavity 603. The partition 601 is also provided with a through hole 604, and the provision of the through hole 604 enables the upper cavity 602 and the lower cavity 603 to communicate with each other. In this embodiment, the partition 601 is provided with a plurality of long strip-shaped through holes 604, and the structure and number of the through holes 604 are exactly the same as the cavity entrance 205 on the bottom plate 401, that is, the through hole 604 is composed of a strip opening 701 and a baffle 702 disposed below the strip opening 701. In other embodiments, other numbers and structures of through holes 604 may also be provided. In this embodiment, sound absorbing materials are pasted on the through holes 604 and the baffle 702 of the cavity entrance 205. In other embodiments, the sound absorbing materials may also be fixed at the positions of the through holes 604 and the cavity entrance 205 by other means.

[0062] Fig. 10A Shows Fig. 9A A partial cross-sectional view of the vibration reduction device 201 in the axial direction of the condenser 100; Fig. 10B Shows Fig. 9A A cross-sectional view of the vibration reduction device 201 in the radial direction of the condenser 100. Fig. 10A and Fig. 10B As shown, the installation method of the vibration reduction device 201 of the sixth embodiment in the condenser shell 101 is exactly the same as that of the vibration reduction device 201 of the fourth embodiment. When the vibration reduction device 201 of the sixth embodiment is installed in the condenser shell 101, the top of the condenser shell 101 and the vibration reduction device shell 202 jointly define the upper cavity 602, and the lower cavity 603 is defined by the vibration reduction device shell 202 itself. The provision of the partition 601 can enhance the attenuation of the turbulence and vibration originating from the compressor by the vibration reduction device 201. In order to avoid the influence of the vibration reduction device 201 on the exhaust function of the safety valve 106, the sixth embodiment not only needs to set the cross section of the cavity inlet 205 to be larger than the cross section of the passage in the safety valve interface device 102 at the inlet position, but also needs to set the total cross section of the through hole 604 to be larger than the cross section of the passage in the safety valve interface device 102 at the inlet position.

[0063] like 7A to 10B As shown, in the fourth to sixth embodiments, the sound absorbing material is disposed at the position of the cavity entrance 205 and the through hole 604 of the partition 601. In other embodiments, in order to enhance the vibration reduction effect of the vibration reduction device 201, the sound absorbing material may also be disposed inside the cavity 204 of the vibration reduction device 201, for example, the sound absorbing material is pasted on the inner surface of the cavity 204 in the fourth to sixth embodiments. FIG. 2A to FIG. 6B The vibration reduction device 201 of the illustrated embodiments 1 to 3 may also have the inner surface of the cavity 204 thereof covered with sound absorbing material, which can also enhance the vibration reduction effect of the vibration reduction device 201 .

[0064] In the first to sixth embodiments of the present application, the vibration reduction device 201 is arranged on the top wall of the condenser shell 101, and the cavity 204 is defined by the condenser shell 101 and the vibration reduction device shell 202. The above-mentioned ceiling-mounted structural arrangement locally enhances the rigidity of the condenser shell 101 where the safety valve interface device 102 is installed, effectively reducing the vibration response of the safety valve interface device 102 under flow loss or surge conditions. In other embodiments, the vibration reduction device 201 can also be arranged to be independently installed below the safety valve interface device 102. In this case, the cavity of the vibration reduction device 201 is independent of the condenser shell 101 and is only defined by its own vibration reduction device shell 202.

[0065] The present application adds a vibration reduction device 201 inside the condenser 100, and effectively attenuates the influence of the compressor on the components of the condenser 100 in the case of flow loss or surge through the vibration reduction effect of the vibration reduction device 201. Specifically, the vibration reduction device 201 is arranged below the safety valve interface device 102 of the condenser 100, mainly for absorbing the vibration excitation energy of the natural frequency of the safety valve interface device 102, greatly attenuating the influence of the mechanical vibration and exhaust turbulence of the compressor on the safety valve interface device 102, greatly improving the working condition adaptability of the safety valve interface device 102, so that the safety valve interface device 102 can serve the units at the customer site reliably for a long time.

Claims

1. A vibration reduction device for a condenser, the condenser (100) comprising a condenser shell (101) and a safety valve interface device (102), the safety valve interface device (102) being arranged on the condenser shell (101), the safety valve interface device (102) having a passage inside, and the condenser shell (101) having a receiving space (203) inside, characterized in that: The vibration damping device (201) is arranged in the accommodating space (203) of the condenser shell (101), and the vibration damping device (201) comprises a vibration damping device shell (202), a cavity (204) arranged in the vibration damping device shell (202), and at least one cavity inlet (205) arranged on the vibration damping device shell (202); Wherein, the passage of the safety valve interface device (102) is fluidically connected to the accommodating space (203) of the condenser (100) through the cavity (204) of the vibration reduction device (201).

2. The vibration reduction device for a condenser according to claim 1, characterized in that: A sound absorbing material is arranged at the position of at least one cavity entrance (205) among the at least one cavity entrance (205).

3. The vibration reduction device for a condenser according to claim 1, characterized in that: The vibration reduction device (201) is arranged in the condenser (100) such that: the at least one cavity inlet (205) faces away from the refrigerant inlet of the condenser (100).

4. The vibration reduction device for a condenser according to claim 1, characterized in that: The cavity (204) of the vibration reduction device (201) is defined by the condenser shell (101) and the vibration reduction device shell (202).

5. The vibration reduction device for a condenser according to claim 1, characterized in that: The cavity (204) of the vibration damping device (201) is defined by the vibration damping device housing (202), and the vibration damping device housing (202) is also provided with a cavity outlet, and the passage of the safety valve interface device (102) leads to the cavity (204) of the vibration damping device (201) through the cavity outlet.

6. The vibration reduction device for a condenser according to claim 1, characterized in that: The length direction of the vibration damping device shell (202) is consistent with the length direction of the condenser shell (101), and the shape of the vibration damping device shell (202) is a part of a cylinder or a part of a prism.

7. The vibration reduction device for a condenser according to claim 1, characterized in that: The vibration damping device housing (202) comprises two side plates (209) and an arc-shaped plate (208), wherein the arc-shaped plate (208) is formed by bending a rectangular flat plate inwardly, and the two side plates (209) are arranged in parallel on the inner side of the arc-shaped plate (208) and are respectively connected to two side edges of the bent arc-shaped plate (208).

8. The vibration reduction device for a condenser according to claim 1, characterized in that: The vibration damping device housing (202) comprises four side plates (209) and a bottom plate (401); the four side plates (209) are connected end to end to form four side walls of the vibration damping device; the bottom plate (401) is connected to the four side plates (209) and covers the bottoms of the four side walls.

9. The vibration reduction device for a condenser according to claim 1, characterized in that: A partition (601) is provided inside the vibration reduction device housing (202), and the partition (601) divides the cavity (204) of the vibration reduction device (201) into two sub-cavities. At least one through hole (604) is provided on the partition (601), and the two sub-cavities are connected to each other through the at least one through hole (604).

10. The vibration reduction device for a condenser according to claim 9, characterized in that: A sound absorbing material is arranged at the position of at least one through hole (604) among the at least one through hole (604).

11. The vibration reduction device for a condenser according to claim 1, characterized in that: The structure of the vibration reduction device (201) is set so that the vibration frequency range absorbed by the vibration reduction device (201) includes the natural frequency of the safety valve interface device (102).

12. The vibration reduction device for a condenser according to claim 11, characterized in that: The safety valve interface device (102) is a three-way valve device.

13. A condenser, comprising: A condenser shell (101), wherein the interior of the condenser shell (101) has a containing space (203); A safety valve interface device (102) disposed on the condenser housing (101), wherein the safety valve interface device (102) has a passage inside; A vibration damping device (201), wherein the vibration damping device (201) is the vibration damping device (201) according to any one of claims 1 to 12.

14. The condenser according to claim 13, characterized in that Also includes: A compressor exhaust receiving port (105) is provided on the condenser shell (101), the compressor exhaust receiving port (105) being in communication with the accommodation space (203) of the condenser (100), so that gas exhausted from the compressor can flow into the accommodation space (203) through the compressor exhaust receiving port (105); Wherein, the at least one cavity inlet (205) of the vibration reduction device (201) is arranged to deviate from or turn away from the flow path of the gas discharged from the compressor and directly flow toward the vibration reduction device (201).

15. The condenser according to claim 14, characterized in that: The safety valve interface device (102) is arranged on the top of the condenser shell (101), and the vibration reduction device (201) is connected to the inner wall of the top of the condenser shell (101).

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