Pipeline damping quality adjusting device and cold and hot water unit

Abstract

The invention discloses a pipeline damping mass adjusting device and a water chiller-heater unit, the pipeline damping mass adjusting device comprises a magnetic absorption damping block, the magnetic absorption damping block is formed by splicing at least two damping base blocks, and the damping base blocks are provided with groove structures allowing pipelines to penetrate through after being spliced; the pipeline damping mass adjusting device further comprises a loading structure capable of driving the damping base blocks to move, and the loading structure drives the damping base blocks to move so that the damping base blocks can be spliced into the magnetic absorption damping block. Compared with the prior art, separation and combination of the damping base blocks can be achieved through the on-load structure, then dismounting and mounting of the magnetic attraction damping blocks on the pipeline are achieved, in addition, the pipeline amplitude detection device is arranged to detect whether the amplitude of the pipeline exceeds the limit or not, the number of the magnetic attraction damping blocks is increased or decreased according to whether the pipeline exceeds the limit or not, and the pipeline is more stable. Therefore, the actual vibration condition of the pipeline can be dynamically matched with the number of the magnetic damping blocks, and the amplitude of the pipeline is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to a cold and hot water unit, in particular to a pipeline damping mass adjusting device and a cold and hot water unit. BACKGROUND

[0002] On a commercial air-cooled screw cold and hot water unit, when the compressor operates at different frequencies, there may be a certain pipeline vibration exceeding the limit in multiple frequency bands;

[0003] By increasing the damping block, the vibration in a certain frequency band can be effectively improved, but the increase of the damping block increases the mass of the pipeline, which theoretically reduces the natural frequency of the pipeline. Even if the above multiple vibration exceeding limit frequency bands shift, there may still be a frequency point exceeding the limit of vibration;

[0004] And using various dampers to increase the pipeline vibration damping, the damper fixing needs to occupy the space of the unit, and the damper itself will also vibrate, which makes the damping needed to be increased larger, in addition, under high frequency vibration, the heat generation is larger, which may need to design a heat dissipation system, making the system design and maintenance more complex.

[0005] Therefore, how to design a pipeline damping mass adjusting device and a cold and hot water unit that can adapt to the actual operation of the cold and hot water unit, adjust the damping mass of the pipeline, and reduce the pipeline amplitude is a technical problem to be solved in the industry. SUMMARY

[0006] In view of the problem in the prior art that the damping mass on the pipeline cannot be adjusted according to the actual operation of the unit, the present application provides a pipeline damping mass adjusting device and a cold and hot water unit.

[0007] The technical scheme of the present application is to provide a pipeline damping mass adjusting device, which comprises a magnetic damping block 1, the magnetic damping block 1 is spliced by at least two damping base blocks, and the damping base block has a slot structure for accommodating the pipeline after splicing;

[0008] The pipeline damping mass adjusting device further comprises a load carrying structure for driving the movement of the damping base block, and the load carrying structure drives the movement of the damping base block to splice it into the magnetic damping block 1.

[0009] Further, the damping base block comprises a sleeve 6 for fixing the shape of the damping base block, a damping material 2 arranged in the sleeve 6, and a rubber pad 3 arranged at the slot structure for abutting the pipeline.

[0010] Further, the damping base block further comprises a magnet structure arranged on the splicing surface for splicing other damping base blocks;

[0011] The magnet structure comprises at least an electromagnetic coil 5 in an energized state when the two damping blocks are separated, and a permanent magnet 4 providing magnetic force after the two damping blocks are spliced.

[0012] Further, the damping blocks are provided in two, and each of the damping blocks is semicircular in shape, and the groove structure is a semicircular groove provided on the damping block, and the inner diameter of the semicircular groove matches the outer diameter of the pipeline.

[0013] The two damping blocks form a hollow cylindrical structure after splicing, and the hollow part is used to accommodate the pipeline passing through.

[0014] Further, the load-bearing structure comprises a first lead screw 91 and a second lead screw 92 for mounting the damping blocks, the first lead screw 91 and the second lead screw 92 are perpendicular to each other, and the first lead screw 91 and the second lead screw 92 are fixed by a cantilever 8.

[0015] The first lead screw 91 is connected with a first drive motor 101 capable of driving the damping blocks to move along the setting direction of the first lead screw 91, and the second lead screw 92 is connected with a second drive motor 102 capable of driving the damping blocks to move along the setting direction of the second lead screw 92, and the damping blocks are spliced by the driving of the first drive motor 101 and the second drive motor 102.

[0016] Further, at least one fixing hole 7 is provided on the sleeve 6 of each damping block for assembling with the first lead screw 91 or the second lead screw 92.

[0017] Further, the pipeline damping mass adjusting device further comprises a pipeline amplitude detection device for detecting whether the amplitude of the pipeline is out of limit, and the load-bearing structure is used to increase or decrease the number of magnetic suction damping blocks 1 on the pipeline according to whether the amplitude of the pipeline is out of limit.

[0018] Further, the pipeline amplitude detection device comprises an infrared receiving device 12 provided on the pipeline, and an infrared emitting device 11 provided on a fixed unit frame.

[0019] The installation height difference between the infrared emitting device 11 and the infrared receiving device 12 is the amplitude limit value of the pipeline.

[0020] Further, when the infrared receiving device 12 receives the infrared signal emitted by the infrared emitting device 11, the pipeline amplitude detection device determines that the pipeline is out of limit.

[0021] When the pipeline is out of limit, the load-bearing structure increases the number of magnetic suction damping blocks 1 on the pipeline.

[0022] The application further provides a cold and hot water unit with the pipeline damping mass adjusting device.

[0023] Compared with the prior art, the application has at least the following beneficial effects:

[0024] 1. The magnetic attraction damping block is designed by splicing at least two damping base blocks, and a corresponding load carrying structure is arranged to drive the damping base block to move to realize the splicing or splitting action, so that the magnetic attraction damping block can be disassembled and assembled on the pipeline by separating or combining the damping base blocks;

[0025] 2. The pipeline amplitude detection device is arranged to detect whether the amplitude of the pipeline is out of limit, and is used in cooperation with the load carrying structure, so that the number of the magnetic attraction damping blocks on the pipeline can be increased or decreased according to the actual operation of the unit;

[0026] 3. The control logic is given when the pipeline damping mass adjusting device is used, the real-time frequency of the compressor in the cold and hot water unit is detected, the pipeline vibration at each frequency band is checked, and the number of the magnetic attraction damping blocks actually increased or decreased is determined, so that the pipeline damping mass is dynamically matched with the frequency of the compressor, and the pipeline amplitude is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the application, and therefore should not be regarded as a limitation to the scope, and other related drawings can also be obtained by those skilled in the art without creative labor.

[0028] Figure 1 It is a structural schematic diagram of the magnetic attraction damping block in the application;

[0029] Figure 2 It is an assembly schematic diagram of the load carrying structure and the magnetic attraction damping block in the application;

[0030] Figure 3 It is a setting schematic diagram of the pipeline amplitude detection device in the application;

[0031] Figure 4 It is a control logic flowchart of the whole application;

[0032] 1 is a damping block;

[0033] 2 is a damping material;

[0034] 3 is a rubber pad;

[0035] 4 is a permanent magnet;

[0036] 5 is an electromagnetic coil;

[0037] 6 is a sleeve;

[0038] 7 is a fixing hole;

[0039] 8 is a cantilever;

[0040] 91 is a first screw rod, and 92 is a second screw rod;

[0041] 101 is a first driving motor, and 102 is a second driving motor;

[0042] 11 is an infrared emitting device;

[0043] 12 is an infrared receiving device. DETAILED DESCRIPTION

[0044] In order to make the technical problems to be solved by the present application, technical solutions and beneficial effects more clearly understood, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0045] Therefore, one feature indicated in the specification will be used to explain one feature of one embodiment of the present application, and it is not implied that each embodiment of the present application must have the explained feature. In addition, it should be noted that the specification describes many features. Although some features can be combined together to show possible system designs, these features can also be used in other combinations that are not explicitly described. Therefore, unless otherwise stated, the described combination is not intended to be limiting.

[0046] The principles and structures of the present application will be described in detail below in combination with the drawings and embodiments.

[0047] At present, the vibration condition in a certain frequency range can be effectively improved by increasing the damping block, but the increase of the damping block increases the mass of the pipeline, which theoretically reduces the natural frequency of the pipeline. Even if the above multiple vibration frequencies exceeding the limit are shifted, there may still be frequency points exceeding the limit. If the damping mass of the pipeline can be adjusted according to the actual operation of the unit, the above problems can be well solved.

[0048] Based on the above problems, the present application provides a pipeline damping mass adjusting device, which comprises a magnetic attraction damping block 1, the magnetic attraction damping block 1 is spliced by at least two damping base blocks, and the damping base block has a slot structure formed after splicing to accommodate the pipeline passing through;

[0049] The pipeline damping mass adjusting device further comprises a load bearing structure for driving the damping base blocks to move, and the load bearing structure drives the damping base blocks to move so as to splice the damping base blocks into the magnetic attraction damping block 1.

[0050] The magnetic attraction damping block 1 can be regarded as a shock absorber, which is sleeved and installed on the corresponding pipeline to achieve the purpose of damping. As can be seen from the above design of the present application, the magnetic attraction damping block 1 in the present application is spliced by at least two damping base blocks, and preferably two damping base blocks in the present application, and the movement of the damping base blocks during splicing is driven by the load bearing structure.

[0051] Based on the above setting, the present application can drive two damping base blocks to the two sides of the corresponding pipeline through the load bearing structure, and then control the two damping base blocks to be assembled. Since each damping base block is provided with a groove structure matched with the pipeline, after the two damping base blocks are assembled together to form the magnetic attraction damping block 1, the magnetic attraction damping block 1 is assembled on the pipeline.

[0052] Similarly, the load bearing structure can split one magnetic attraction damping block 1 into two damping base blocks through the process opposite to the process of assembling two damping base blocks into a magnetic attraction damping block 1, thereby forming the form of disassembling the magnetic attraction damping block 1 from the pipeline.

[0053] Based on the above setting, the present application can achieve the following effects:

[0054] The present application can drive the damping base block 1 to move through the load bearing structure to realize the splicing or splitting action, and can realize the disassembly and installation of the magnetic attraction damping block 1 on the pipeline through the separation or combination of the damping base blocks.

[0055] According to the actual operation of the unit, the magnetic attraction damping block 1 is disassembled or installed from the pipeline, which can achieve the purpose in the foregoing: adjusting the damping mass of the pipeline according to the actual operation of the unit, thereby solving the problems existing in the prior art.

[0056] Please refer to Figure 1 The structure of each damping base block in the present application is that the damping base block comprises a sleeve 6 for fixing the shape of the damping base block, a damping material 2 arranged in the sleeve 6, and a rubber pad 3 arranged at the groove structure for abutting against the pipeline.

[0057] According to the above setting, the structure layout of the magnetic attraction damping block 1 in the present application is that the outermost end is the sleeve 6 with a fixing hole 7, which is used to determine the outer dimension of the entire magnetic attraction damping block 1.

[0058] The second layer inward is the damping material 2 for damping;

[0059] The third layer inside is the rubber pad 3, which is in direct contact with the pipes and ensures a full fit with the pipes.

[0060] Among them, the damping material 2 is a material used to convert the mechanical vibration energy of a solid into heat energy and dissipate it. It can be butyl, acrylate, polysulfide, nitrile and silicone rubber, polyurethane, polyvinyl chloride and epoxy resin, etc.

[0061] In this invention, the sleeve 6 is actually equivalent to the outer shell of the damping base block. The damping material completely fills the sleeve 6. Therefore, the sleeve 6 can be used to fix the shape of the damping base block. As for the rubber pad 3 at the joint between the sleeve 6 and the pipeline, it is to facilitate the jointing and detachment of the damping base block from the pipeline.

[0062] Based on the above-mentioned structural configuration, the present invention can meet the requirements for vibration reduction through the damping material 2, and at the same time, the sleeve 6 can limit the shape of the damping block, so that two damping blocks can be spliced ​​together and the spliced ​​block can accommodate the passage of the pipeline. As for the rubber pad 3, it can facilitate the damping block to be attached to and detached from the pipeline.

[0063] Furthermore, each damping base block in this invention also includes a magnet structure disposed on the splicing surface for splicing other damping base blocks;

[0064] The above-mentioned magnet structure includes at least an electromagnetic coil 5 that is energized when the two damping blocks are separated, and a permanent magnet 4 that provides magnetic force after the two damping blocks are spliced ​​together;

[0065] like Figure 1 As shown, the middle part is a structural schematic diagram of the magnetic damping block 1, and the left, right and lower parts are schematic diagrams of different cross-sections of the magnetic damping block 1.

[0066] From the appendix Figure 1 As can be seen, after the two damping blocks are spliced ​​together, the resulting magnetic damping block 1 is a hollow cylindrical shape. This hollow part is used to accommodate the pipeline. The left part is the cross-section of the splicing surface of the two damping blocks. The middle part of this cross-section is a semi-circular groove. After the two damping blocks 1 are spliced ​​together, the two semi-circular grooves can form a complete circular groove, which is manifested as the hollow part of the hollow cylinder.

[0067] Electromagnetic coil 5 is located on both sides of the semi-circular groove to provide attraction and attract the two damping blocks together. Permanent magnet 4 is also located in this part and is covered with a layer. When the electromagnetic coil 5 is energized, it provides a repulsive force that repels each other.

[0068] Here, the permanent magnet 4 is used to provide mutual attraction magnetic force, and the part of the magnetic force does not change with or without power supply, based on the setting of the permanent magnet 4, the two damping blocks can be attracted by magnetic force when spliced, facilitating the splicing of the two damping blocks, and in addition, after splicing is completed, the two damping blocks can also provide mutual attraction magnetic force due to the presence of the permanent magnet 4, thereby ensuring the firm installation between the two damping blocks.

[0069] The electromagnetic coil 5 is provided to provide repulsive force when the two damping blocks need to be separated, which can offset the magnetic force provided by the permanent magnet 4, thereby weakening the mutual attraction force between the two damping blocks, thereby facilitating the separation of the two damping blocks by the load-bearing structure.

[0070] That is, through the setting of the permanent magnet 4 and the electromagnetic coil 5 in the present application, on the one hand, the firmness of the installation between the two damping blocks is ensured, and on the other hand, the convenience for the separation of the two damping blocks is provided.

[0071] Please refer to Figure 1 In a preferred embodiment of the present application, the damping block is provided with two damping blocks, and the shape of each damping block is semicircular, and the groove structure is a semicircular groove provided on the damping block, and the inner diameter of the semicircular groove matches the outer diameter of the pipeline.

[0072] The two damping blocks are spliced to form a hollow cylindrical structure, and the hollow part is used to accommodate the pipeline to pass through.

[0073] The above setting is to set two damping blocks, and in this setting, the damping blocks can be spliced more easily, and in other embodiments of the present application, the damping blocks can also be provided with three, each damping block is provided with one-third of the circular shape, and then the three damping blocks are spliced to form the magnetic attraction damping block 1, but the structure is relatively complex when splicing.

[0074] The above setting is the structure setting of the magnetic attraction damping block 1 in the present application, and the present application can realize the installation and disassembly of the magnetic attraction damping block 1 to the pipeline through the splicing and disassembly of the damping block, thereby adapting to the actual operation of the unit.

[0075] As described above, in order to realize the splicing and disassembly of the damping block, a corresponding load-bearing structure needs to be provided to drive the movement of the damping block, and the composition of the load-bearing structure in the present application will be described below.

[0076] Please refer to Figure 2The load-carrying structure comprises a first screw rod 91 and a second screw rod 92 for mounting the damping base block, the first screw rod 91 and the second screw rod 92 are arranged perpendicularly to each other, and the first screw rod 91 and the second screw rod 92 are fixed by a cantilever 8.

[0077] The first screw rod 91 is connected with a first driving motor 101 for driving the damping base block to move along the arrangement direction of the first screw rod 91, and the second screw rod 92 is connected with a second driving motor 102 for driving the damping base block to move along the arrangement direction of the second screw rod 92, and the damping base block is spliced by the driving of the first driving motor 101 and the second driving motor 102.

[0078] From the attached Figure 2 It can be seen that the arrangement direction of the first screw rod 91 is a vertical direction, the first driving motor 101 is connected to the first screw rod 91, and the damping base block can be driven to move in the up-down direction;

[0079] The arrangement direction of the second screw rod 92 is a horizontal direction, the second driving motor 102 is connected to the second screw rod 102, and the damping base block can be driven to move in the horizontal direction;

[0080] The two different movement directions can realize the full-range load-carrying movement of the damping base block on the load-carrying structure, which is similar to the plane rectangular coordinate system, as long as the movement distances in two directions are determined, the horizontal coordinate and the vertical coordinate of the plane rectangular coordinate system are determined, and the specific position can be determined, and the damping base block can be moved to the corresponding position in the application;

[0081] As for the cantilever 8 part arranged in the load-carrying structure in the application, it is used for fixing.

[0082] That is, based on the above arrangement in the application, the most simple structure is adopted, so that the control of the movement direction of the damping base block can be realized, the design cost is lower, and the control is more convenient.

[0083] Further, as described above, the damping base block is actually mounted with the first screw rod 91 and the second screw rod 92, in order to realize the mounting, at least one fixing hole 7 for assembling with the first screw rod 91 or the second screw rod 92 is arranged on each damping base block 6.

[0084] Based on the arrangement of the fixing hole 7, the assembly of the first screw rod 91 and the second screw rod 92 can be well realized, and then used for the control of the movement direction of the damping base block.

[0085] Based on the above arrangement, the principle of realizing the increase and decrease process of the magnetic attraction damping block 1 in the application can be divided as follows:

[0086] I. Increase, fixed on the cantilever 8 above the pipeline damping base is in the state of separation, first the first drive motor 101 receives the control instruction, through the first screw rod 91 moves the damping base to the same height position with the pipeline, then the second drive motor 102 receives the control instruction, through the second screw rod 92 pulls two damping base until the permanent magnet 4 is mutually attached, ensure the fixed strength of magnetic damping block 1;

[0087] II. Reduce, fixed on the cantilever 8 above the pipeline damping base is in the state of attachment, first control the electromagnetic coil 5 in the damping base energization, generate repulsion, at the same time, the second drive motor 102 receives the control instruction, through the second screw rod 92 separates two damping base, after completing the action, the first drive motor 101 receives the control instruction, through the first screw rod 91 lifts the two half damping base to the corresponding placement position;

[0088] Based on the above action principle of magnetic damping block 1, the displacement of magnetic damping block 1 in the vertical direction can align the center of two half damping base with the center of the pipeline (when increasing the magnetic damping block 1) or away from it (when reducing the magnetic damping block 1). The displacement of magnetic damping block 1 in the horizontal direction, when increasing the magnetic damping block 1, is to move the two half damping base to the center of the pipeline horizontally after aligning the center in the vertical direction, until it is fixed by the permanent magnet 4. When reducing the magnetic damping block 1, the electromagnetic coil 5 in the two damping base is energized to repel each other, ensuring that the first drive motor 101 can push the two damping base apart and perform the action of horizontal movement away from the center of the pipeline, and finally the damping base is retracted through the vertical displacement.

[0089] That is, the present application can drive the damping base to move to realize the splicing or splitting action through the load carrying structure, and can realize the disassembly and installation of the magnetic damping block on the pipeline through the separation or combination of the damping base.

[0090] During the operation of the unit, if the amplitude exceeds the limit, the magnetic damping block 1 needs to be increased to reduce the amplitude. For this purpose, a detection device is needed to detect whether the amplitude of the pipeline of the unit exceeds the limit;

[0091] Therefore, the pipeline damping mass adjusting device provided by the present application further comprises a pipeline amplitude detection device for detecting whether the amplitude of the pipeline exceeds the limit, and the load carrying structure is used to increase or decrease the number of magnetic damping blocks 1 on the pipeline according to whether the amplitude of the pipeline exceeds the limit.

[0092] After setting the amplitude detection device in the present application, whether the amplitude of the pipeline exceeds the limit can be detected in real time, and the number of magnetic damping blocks 1 on the pipeline is increased or decreased based on whether the amplitude exceeds the limit.

[0093] Based on the setting, the present application can achieve the beneficial effects as indicated in the foregoing:

[0094] The amplitude of the pipeline can be detected, and the device is used in combination with the belt load structure.

[0095] The traditional amplitude detection device generally uses an amplitude detector, such as a VMI amplitude detector, but the cost of using the VMI amplitude detector is relatively high, and it is easy to be damaged.

[0096] Please refer to Figure 3 The amplitude detection device is specifically provided as follows: the pipeline amplitude detection device comprises an infrared receiving device 12 arranged on the pipeline and an infrared emitting device 11 arranged on the fixed unit frame.

[0097] The installation height difference between the infrared emitting device 11 and the infrared receiving device 12 is the amplitude limit value of the pipeline.

[0098] As described above, the present application is actually used for detecting whether the amplitude is over-limit, and the specific vibration amplitude of the pipeline does not need to be accurately detected.

[0099] The infrared emitting device 11 is arranged on the fixed unit frame, and the height thereof does not change with the vibration of the pipeline.

[0100] Finally, the installation height difference between the infrared emitting device 11 and the infrared receiving device 12 is the amplitude limit value of the pipeline.

[0101] When the vibration amplitude of the pipeline exceeds the amplitude limit value, that is, the pipeline is out of limit, the height of the infrared receiving device 12 changes with the pipeline, and the height change exceeds the installation height difference between the infrared emitting device 11 and the infrared receiving device 12, so that the infrared receiving device 12 can reach the installation height of the infrared emitting device 11, at this time the infrared receiving device 12 can normally receive the signal emitted from the infrared emitting device 11;

[0102] That is, the pipeline amplitude detection device provided in the application can determine whether the vibration amplitude of the pipeline is out of limit according to whether the infrared receiving device 12 receives the signal emitted from the infrared emitting device 11, which is embodied as that when the infrared receiving device 12 receives the signal emitted from the infrared emitting device 11, it is determined that the vibration amplitude of the pipeline is out of limit at this time.

[0103] As can be seen from the above arrangement, the application can realize the detection of whether the amplitude of the pipeline is out of limit by only one infrared emitting device 11 and one infrared receiving device 12, compared with the traditional VMI amplitude detector, the structure designed by the application is simpler and the cost is lower.

[0104] According to the detection structure of the pipeline amplitude detection device, the adjustment principle of the magnetic attraction damping block 1 in the application is:

[0105] When the infrared receiving device 12 receives the infrared signal emitted from the infrared emitting device 11, the pipeline amplitude detection device determines that the pipeline is out of limit;

[0106] When the pipeline is out of limit, the number of magnetic attraction damping blocks 1 on the pipeline is increased by the belt load structure.

[0107] Based on the control principle, the application can achieve the beneficial effects as described above:

[0108] It can be used to detect whether the amplitude of the pipeline is out of limit, and is used in cooperation with the belt load structure, so that the number of magnetic attraction damping blocks on the pipeline can be increased or decreased according to the actual operation of the unit.

[0109] Please refer to Figure 4 The control process of the application is specifically:

[0110] Firstly, during the pipeline vibration test in the early stage of factory delivery, the running frequency F0 of the compressor corresponding to the pipeline amplitude out of limit point and the corresponding increased number n0 of magnetic attraction damping blocks 1 are recorded, which are used as the basic data for controlling the pipeline vibration in the subsequent actual working environment.

[0111] In the actual running environment, firstly, the running frequency F of the compressor is read, and whether the pipeline amplitude is over the limit is determined through the pipeline amplitude detection device, the running frequency F0 of the amplitude over-limit point of the factory record closest to the current running frequency F of the compressor is determined, and thus the corresponding pipeline vibration control corresponding to the basic number n0 of the magnetic suction damping block 1 is determined.

[0112] Then, step 2 is entered, the number n of the magnetic suction damping block 1 suitable for the actual pipeline vibration state is adjusted, the magnetic suction damping block 1 increasing / decreasing action is performed, after the number of the magnetic suction damping block 1 on the pipeline reaches n=n0, whether the feedback pipeline amplitude is over the limit is detected through the pipeline amplitude detection device, if over the limit, the command of increasing the magnetic suction damping block 1 is issued, and the current number n=n+1 of the installed magnetic suction damping block 1 is counted, and whether the pipeline amplitude is over the limit is detected, and the detection and control are circularly detected until the pipeline amplitude is no longer over the limit, at this time, the current environment amplitude over-limit point and the new number of the magnetic suction damping block 1 corresponding to the current environment amplitude over-limit point are recorded, and are updated as F1 (=F) and n1 (=n), otherwise, the next round of amplitude detection and control period is entered.

[0113] Meanwhile, whether the value n is less than the total number of the magnetic suction damping block 1 is detected, if yes, the cycle is exited, the current compressor frequency F is re-detected, F0 and n0 are re-determined, the number of the magnetic suction damping block 1 on the pipeline is reduced to n=n0, and step 2 is re-entered.

[0114] Finally, the control when the unit is stopped is performed, before the compressor is closed for a period of time t1, the number n of the magnetic suction damping block 1 on the current pipeline is returned, the unloading command of the n magnetic suction damping blocks 1 is issued, and the number of the magnetic suction damping block 1 on the pipeline is cleared and reset.

[0115] Based on the part of the control logic, it can be seen that when the above pipeline damping mass adjustment device is used, the corresponding control logic is given, the real-time frequency of the compressor in the cold and hot water unit is detected, the pipeline vibration under each frequency section is tested, the number of the actually increased and decreased magnetic suction damping blocks is determined, and thus the pipeline damping mass and the frequency of the compressor are dynamically matched, and the pipeline amplitude is reduced.

[0116] In summary, compared with the prior art, the present application has the following beneficial effects:

[0117] 1、The magnetic suction damping block is designed to be spliced by at least two damping base blocks, and is provided with a corresponding belt loading structure, the belt loading structure drives the damping base block to move to realize the splicing or splitting action, the magnetic suction damping block can be disassembled and assembled on the pipeline through the separation or combination of the damping base blocks.

[0118] 2、The pipeline amplitude detection device is provided, which can be used to detect whether the amplitude of the pipeline is over the limit, and is used in cooperation with the belt loading structure, the number of the magnetic suction damping block on the pipeline can be increased or decreased according to the actual running condition of the unit.

[0119] 3. When using the above-mentioned pipeline damping quality adjustment device in this invention, corresponding control logic is provided to detect the real-time frequency of the compressor in the hot and cold water unit and to check the pipeline vibration in each frequency range, thereby determining the actual number of magnetic damping blocks to be added or removed, so as to achieve dynamic matching between the pipeline damping quality and the compressor frequency and reduce the pipeline amplitude.

[0120] The present invention also proposes a hot and cold water unit having the above-mentioned pipeline damping mass adjustment device.

[0121] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pipe damping mass adjustment device comprising a magnetic suction damping block (1), characterized in that, The magnetic suction damping block (1) is spliced by at least two damping base blocks, and the damping base block has a slot structure for accommodating the pipeline after splicing; The pipeline damping mass adjusting device further comprises a load bearing structure for driving the movement of the damping base block, and the load bearing structure drives the movement of the damping base block to splice it into the magnetic suction damping block (1).

2. The plumbing damper mass adjustment device of claim 1, wherein, The damping base block comprises a sleeve (6) for fixing the shape of the damping base block, a damping material (2) arranged in the sleeve (6), and a rubber pad (3) arranged at the slot structure for fitting the pipeline.

3. The plumbing damper mass adjustment device of claim 2, wherein, The damping base block further comprises a magnet structure arranged on the splicing surface for splicing other damping base blocks; The magnet structure comprises at least an electromagnetic coil (5) in an energized state when the two damping base blocks are separated, and a permanent magnet (4) for providing a magnetic force after the splicing of the two damping base blocks is completed.

4. The plumbing damper mass adjustment device of claim 3, wherein, The damping base block is provided with two, and the shape of each damping base block is semicircular, and the slot structure is a semicircular slot arranged on the damping base block, and the inner diameter of the semicircular slot matches the outer diameter of the pipeline. The two damping base blocks form a hollow cylindrical structure after splicing, and the hollow part is used to accommodate the pipeline.

5. The plumbing damper mass adjustment device of claim 1, wherein, The load bearing structure comprises a first lead screw (91) and a second lead screw (92) for mounting the damping base block, the first lead screw (91) and the second lead screw (92) are perpendicular to each other, and the first lead screw (91) and the second lead screw (92) are fixed by a cantilever (8). The first lead screw (91) is connected with a first driving motor (101) capable of driving the damping base block to move along the arrangement direction of the first lead screw (91), and the second lead screw (92) is connected with a second driving motor (102) capable of driving the damping base block to move along the arrangement direction of the second lead screw (92), and the damping base block is spliced by the driving of the first driving motor (101) and the second driving motor (102).

6. The plumbing damper mass adjustment device of claim 5, wherein, At least one fixing hole (7) is arranged on the sleeve (6) of each damping base block and matched with the first lead screw (91) or the second lead screw (92).

7. The plumbing damper mass adjustment device of claim 1, wherein, The pipeline damping mass adjusting device further comprises a pipeline amplitude detection device for detecting whether the amplitude of the pipeline is out of limit, and the load bearing structure is used to increase or decrease the number of magnetic suction damping blocks (1) on the pipeline according to whether the amplitude of the pipeline is out of limit.

8. The plumbing damper mass adjustment device of claim 7, wherein, The pipeline amplitude detection device comprises an infrared receiving device (12) arranged on the pipeline and an infrared emitting device (11) arranged on the fixed unit frame. The installation height difference between the infrared emitting device (11) and the infrared receiving device (12) is the amplitude limit value of the pipeline.

9. The plumbing damper mass adjustment device of claim 8, wherein, When the infrared receiving device (12) receives the infrared signal emitted by the infrared emitting device (11), the pipeline amplitude detection device determines that the pipeline is out of limit; When the pipeline is out of limit, the load bearing structure increases the number of magnetic suction damping blocks (1) on the pipeline.

10. A hot and cold water unit, characterized in that The cold and hot water unit has the pipe damping mass adjusting device as claimed in any one of claims 1 to 9. The cold and hot water unit has the pipe damping mass adjusting device as claimed in any one of claims 1 to 9.

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