CN113432208A

CN113432208A - Counterweight device capable of adjusting pipeline counterweight, control method and air conditioner

Info

Publication number: CN113432208A
Application number: CN202110725603.8A
Authority: CN
Inventors: 李帅; 夏增强; 高智强; 程诗; 杨俊涛; 吴梦芸
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-09-24
Anticipated expiration: 2041-06-29
Also published as: CN113432208B

Abstract

The invention discloses a counterweight device capable of adjusting a pipeline counterweight, a control method and an air conditioner. The counterweight device includes: the double-layer sleeve is used for being sleeved on a pipeline needing to be balanced, the inner diameter of the double-layer sleeve is larger than the outer diameter of the pipeline needing to be balanced, the double-layer sleeve is composed of an inner pipe and an outer pipe, an annular balance weight cavity is formed between the inner pipe and the outer pipe, and the pipeline needing to be balanced extends in the inner pipe; the annular counterweight cavity is divided into a plurality of sub-counterweight cavities along the extension direction of the double-layer sleeve by the plurality of partition plate assemblies, and each two adjacent sub-counterweight cavities can be opened or closed according to the transfer requirement of the magnetic counterweight material; magnetic weight material, can transfer and pack in one of the multiple sub-weight cavities; the magnetic top cover is arranged at the end part of the sleeve and used for providing magnetic attraction force required by transfer of the magnetic counterweight material among the plurality of sub-counterweight cavities.

Description

Counterweight device capable of adjusting pipeline counterweight, control method and air conditioner

Technical Field

The invention relates to the technical field of pipeline shock absorption, in particular to a counterweight device capable of adjusting a pipeline counterweight, a control method and an air conditioner.

Background

At present, in order to avoid pipeline resonance, a counterweight is usually placed on a pipeline to change the natural frequency of the pipeline, and the position of the counterweight on the pipeline influences the change mode of the natural frequency of the pipeline. At present, the balance weight of the household air conditioner pipeline is mostly fixed at a certain position of the pipeline by sticking a rubber block or a damping block, and the excitation change of the pipeline and the excited fixed frequency change of the pipeline are considered along with the change of the running frequency of the compressor. Therefore, when the position of the counterweight is fixed, the fixed frequency of a pipeline of a certain order can be improved only, and the improvement on the fixed frequency of other orders is not obvious.

Disclosure of Invention

In view of the above, the invention discloses a counterweight device capable of adjusting a pipeline counterweight, a control method and an air conditioner, which are used for at least solving the problem of large pipeline vibration in the air conditioner.

In order to achieve the above object, the invention adopts the following technical scheme:

the invention discloses a pipeline counterweight device in a first aspect, which comprises:

the double-layer sleeve is used for being sleeved on a pipeline needing to be balanced, the inner diameter of the double-layer sleeve is larger than the outer diameter of the pipeline needing to be balanced, the double-layer sleeve is composed of an inner pipe and an outer pipe, an annular balance weight cavity is formed between the inner pipe and the outer pipe, and the pipeline needing to be balanced extends in the inner pipe;

the annular counterweight cavity is divided into a plurality of sub-counterweight cavities along the extension direction of the double-layer sleeve by the plurality of partition plate assemblies, and each two adjacent sub-counterweight cavities can be opened or closed according to the transfer requirement of the magnetic counterweight material;

magnetic weight material, can transfer and pack in one of the multiple sub-weight cavities;

the magnetic top cover is arranged at the end part of the sleeve and used for providing magnetic attraction force required by transfer of the magnetic counterweight material among the plurality of sub-counterweight cavities.

Further optionally, the baffle plate assembly comprises:

the partition plate is provided with a circulation hole;

the flow hole plugging assembly is used for plugging or opening the flow hole.

Further optionally, the flow orifice closure assembly comprises:

a plugging plate;

and the driving device is arranged on the partition plate or the inner pipe or the outer pipe and is used for driving the blocking plate to open or block the circulation hole.

Further optionally, the separation plate is an annular plate, and the flow holes are multiple and evenly distributed around the center of the separation plate.

Further optionally, the number of the magnetic suction top covers is two, and the magnetic suction top covers comprise a first magnetic suction top cover and a second magnetic suction top cover which are respectively arranged at two ends of the double-layer sleeve.

Further optionally, the magnetic weight material is flowable.

Further optionally, the magnetic weight material initial position is disposed in a lowermost sub-weight chamber of the plurality of sub-weight chambers.

Further optionally, the counterweight device further includes:

the vibration detection device is used for detecting the pipeline needing to be balanced to determine the position to be balanced of the pipeline needing to be balanced;

and the controller is used for determining the corresponding sub-counterweight cavity according to the position to be counterweight and controlling the magnetic attraction top cover to attract the magnetic counterweight material to the corresponding sub-counterweight cavity.

The invention discloses a control method for pipeline counterweight adjustment, which adopts any one of the counterweight devices to adjust the counterweight of a pipeline needing counterweight.

Further optionally, the control method includes: detecting the pipeline, and selecting the position with the maximum vibration value in the pipeline as a position to be balanced;

determining a sub-counterweight cavity corresponding to the position to be counterweight according to the position to be counterweight;

and electrifying the magnetic top cover to adsorb the magnetic counterweight material into the corresponding sub-counterweight cavities.

Further optionally, said powering on the magnetically-attracted top cover to attract the magnetic counterweight material to the corresponding sub-counterweight cavities comprises:

opening a circulation hole on the partition plate assembly between the sub-counterweight cavity where the magnetic counterweight material is located and the corresponding sub-counterweight cavity;

and electrifying the magnetic top cover to generate magnetic attraction force, and adsorbing the magnetic counterweight material into the corresponding sub-counterweight cavities.

Further optionally, the control method further includes:

after the magnetic counterweight material is adsorbed into the corresponding sub-counterweight cavities, the communicating holes on the partition plate assemblies on the two sides of the corresponding sub-counterweight cavities are closed;

and disconnecting the power supply of the magnetic top cover.

A third aspect of the present invention discloses an air conditioner, comprising: the counterweight device comprises a compressor, a pipeline connected with the compressor and used for transmitting a refrigerant, and any one of the counterweight devices; wherein the counterweight device is disposed on the pipeline.

Further optionally, the air conditioner adopts the control method of any one of the above, and the control method further includes:

before the pipeline is detected, the frequency of the compressor is detected, and when the frequency of the compressor changes, the pipeline is detected.

Has the advantages that: the invention can solve the problem of multi-stage fixed frequency resonance by controlling the mass distribution of the counter weight on the pipeline, and can effectively reduce the number of the counter weights needed by the pipeline and reduce the cost. .

Drawings

The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely exemplary embodiments of the present disclosure, and other drawings may be derived by those skilled in the art without inventive effort.

FIG. 1 is a schematic view of an embodiment of a counterweight device and a pipeline;

FIG. 2 illustrates a cross-sectional view of an embodiment of the counterweight device and the pipeline;

FIG. 3 illustrates a cross-sectional view of a counterweight structure (without an inner tube portion) according to one embodiment;

FIG. 4 shows a counterweight mass distribution control illustration of an embodiment;

FIG. 5 illustrates a counterweight mass control logic flow diagram of an embodiment;

FIG. 6 is a schematic illustration showing the position of the micro power device controlling the partition plate according to an embodiment;

figure 7 shows a schematic view of a partition plate structure (without an inner tube portion) of an embodiment.

In the figure: 1. a pipeline; 2. a power supply connection part; 3. magnetically attracting the top cover; 4. an annular counterweight cavity; 5. a partition plate; 6. a magnetic weight material; 7. a micro power supply device; 8. a flow-through hole; 9. a plugging plate; 101. an outer tube; 102. an inner tube.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and "a" and "an" generally include at least two, but do not exclude at least one, unless the context clearly dictates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

At present, a refrigerant transmission pipeline in an air conditioner can vibrate under the influence of the frequency change of a compressor, noise can be generated, and the service life of the refrigerant transmission pipeline is shortened. The invention provides a counterweight device suitable for pipeline installation, which can control the mass distribution of a counterweight on a pipeline, solve the problem of multi-stage fixed frequency resonance, effectively reduce the number of counterweights required by the pipeline and reduce the cost.

To further illustrate the technical solution of the present invention, the following specific examples are provided as shown in fig. 1 to 7.

Example 1

As shown in fig. 1 to 4 and 6 to 7, in the present embodiment, there is provided a counterweight device for adjusting a pipeline counterweight, the counterweight device including:

the double-layer sleeve is sleeved outside the pipeline 1 needing to be balanced in the direction of the pipeline, the inner diameter of the double-layer sleeve is larger than the outer diameter of the pipeline 1 needing to be balanced, the double-layer sleeve is composed of an inner pipe 102 and an outer pipe 101, an annular balance weight cavity is formed between the inner pipe 102 and the outer pipe 101, and the pipeline needing to be balanced extends in the inner pipe 102;

the clapboard component is arranged between the double-layer sleeves and is used for dividing the annular counterweight cavity 4 into a plurality of sub-counterweight cavities;

the vibration detection device is used for detecting the pipeline 1 so as to determine the position of the pipeline 1 to be weighted;

the magnetic counterweight material can be filled in the annular counterweight cavity 4 in a flowing mode;

the magnetic top cover 3 is used for generating magnetic attraction force to adsorb the magnetic counterweight material when being electrified;

and the controller is used for determining the corresponding sub-counterweight cavity according to the position to be counterweight and controlling the magnetic attraction top cover 3 to attract the magnetic counterweight material to the corresponding sub-counterweight cavity.

The counterweight device can solve the problem of abnormal noise caused by overlarge vibration of the pipeline 1 and can effectively prevent the problem of fracture of the pipeline 1 caused by overlarge vibration of the pipeline 1 by adjusting the position of a magnetic counterweight material in the annular counterweight cavity 4 and installing the counterweight device in the pipeline 1 which is easy to vibrate.

In some alternatives, the baffle plate assembly comprises: a partition plate 5 provided with a flow hole 8; and the flow hole plugging component is used for plugging or opening the flow hole 8. In order to realize multi-section partition of the double-layer sleeve, in the embodiment, the partition plates 5 are multiple and are arranged in the annular counterweight cavity 4 at intervals along the trend of the double-layer sleeve; correspondingly, the flow hole plugging components are multiple and correspond to the partition plates 5 one by one. Preferably, sub-counter weight chamber number is no less than 5, and when pipeline 1 was the U type, a plurality of sub-counter weight chamber symmetric distribution were in the both sides of U type. The design mode can plug the magnetic counterweight material in the sub-counterweight cavity corresponding to the position to be counterweight to perform accurate counterweight control and adjustment, so that the counterweight mass distribution of the pipeline 1 can be controlled; the counterweight device plays a role of one or more than one by controlling the flowable magnetic counterweight material to be stored in different sub-counterweight cavities to be equivalent to a plurality of fixed counterweights. The magnetic weight material initial position may be disposed in a lowermost sub-weight chamber of the plurality of sub-weight chambers.

Preferably, the flow orifice closure assembly comprises: a plugging plate 9; and the driving device is arranged on the partition plate 5 or on the inner pipe 102 or on the outer pipe 101 and is used for driving the blocking plate 9 to open or block the flow hole 8. Inner tube 102 and outer tube 101 cooperate and form annular balance weight cavity 4, for the realization to the multistage partition of annular balance weight cavity 4, division plate 5 adaptability's design is the annular slab, and correspondingly, the circulation hole 8 that sets up on division plate 5 is a plurality of and around division plate 5 center evenly distributed.

As shown in fig. 1-3, in some optional implementations, two magnetically-attracted top covers 3 are provided, including a first magnetically-attracted top cover and a second magnetically-attracted top cover respectively disposed at two ends of the double-layer sleeve. Namely, after two magnetic suction top covers 3 are arranged at two ends, the bidirectional adsorption control can be carried out on the counterweight magnetic material.

Example 2

In this embodiment, a control method for adjusting a pipeline counterweight is provided, and the control method is used to control any one of the counterweight devices in embodiment 1 to perform counterweight adjustment on the pipeline 1. The control method comprises the following steps: detecting the pipeline 1, and selecting the position with the maximum vibration value in the pipeline 1 as a position to be balanced; determining a sub-counterweight cavity corresponding to the position to be counterweight according to the position to be counterweight; electrifying the magnetic top cover 3 to adsorb the magnetic counterweight material into the corresponding counterweight cavity.

In some optional manners, energizing the magnetically attractive top cover 3 to attract the magnetic weight material into the corresponding sub-weight cavity includes: opening a circulation hole 8 on the partition plate assembly between the sub-counterweight cavity where the magnetic counterweight material is located and the corresponding sub-counterweight cavity; electrifying the magnetic top cover 3 to generate magnetic attraction, and adsorbing the magnetic counterweight material into the corresponding sub-counterweight cavity; after the magnetic counterweight material is adsorbed into the corresponding sub-counterweight cavities, the communicating holes on the partition plate assemblies on the two sides of the corresponding sub-counterweight cavities are closed; the power supply of the magnetic top cover 3 is cut off. It should be noted that, when the magnetic top cover is powered on, the magnetic top cover close to the side of the sub-counterweight cavity where the corresponding magnetic counterweight material needs to be sucked is powered on, and the other magnetic top cover does not need to be powered on.

If the refrigerant transmission pipeline in the air conditioner vibrates under the influence of the frequency change of the compressor connected with the refrigerant transmission pipeline, the pipeline 1 of the air conditioner can be effectively reduced or eliminated by arranging the counterweight device in the embodiment 1 on the pipeline 1 and controlling the counterweight device by combining the control method of the embodiment.

In the above control method, the vibration detection for the pipeline 1 may be real-time detection or periodic detection. Since the change of the compressor frequency can affect the vibration of the pipeline 1, the detection of the compressor frequency can be introduced when the periodic detection is adopted in combination with the detection of the vibration of the pipeline 1 and the detection of the change of the compressor frequency. Preferably, the control method further includes: before the pipeline 1 is detected, the frequency of the compressor is detected, and after the frequency of the compressor changes, the pipeline 1 is detected. This mode combines to guarantee to carry out the adjustment of counter weight after the compressor frequency detects at the vibration production initial stage, avoids the noise to produce and influences the user.

The air conditioner is taken as an example, and the vibration reduction working process of the air conditioner adopting the counterweight device and the corresponding control method is specifically explained.

Fig. 1 is a schematic view of a counterweight device, and fig. 2 is a cross-sectional view thereof. The air conditioner comprises a pipeline 1 (copper pipe) wrapped by a double-layer sleeve in a counterweight device. Magnetism is inhaled top cap 3 and is connected with the power supply unit of off-premises station mainboard connection through power connecting portion 2, and its effect is for making magnetism inhale top cap 3 circular telegram, produces magnetic attraction. The magnetic attraction top cover 3 has the material characteristic that the magnetic attraction generated after the electrification loses the magnetic attraction after the power-off. The annular weight cavity 4 formed by the inner tube 102 and the outer tube 101 is divided into n sub-weight cavities (n is not less than 5) which are used for accommodating magnetic weight materials, and when the weight materials are transferred in different sub-weight cavities, the position of the weight mass is controlled. The partition plate 5 divides the annular counterweight cavity into the n sub-counterweight cavities, a circulation hole 8 (which can be a circular hole or an opening with other shapes) for facilitating the magnetic counterweight material to pass through is formed in the partition plate, the opening and closing of the opening in the partition plate can be controlled, the opening and closing of the cavity can be controlled by driving of a motor, the motor can be a micro motor, and the position of the motor can be placed on the partition plate or the inner wall of the counterweight, as shown in fig. 6. The counterweight device is also provided with a driving device which comprises a micro power supply device 7 and is used for driving the plugging plate 9 to open or close the flow hole 8. When the partition plate is opened, the magnetic counterweight material can be transferred to other sub-counterweight cavities through the partition plate, and when the partition plate is opened, the magnetic counterweight position cannot be transferred. The material of the partition plate can be plastic, metal, composite materials and the like. The magnetic weight material 6 is a magnetic material having a certain fluidity. Fig. 4 is a diagram illustrating weight mass position control, wherein A, B is the left and right top covers of the weight, respectively, and C is the magnetic weight material and its initial position. a1, a2, a3, … and an are n sections of weight cavities, and b1, b2, b3, … and bn are corresponding n partition plates. Assuming that the current weight material is located in the sub-weight chamber a2, and the transfer of the current weight material to the sub-weight chamber a1 is controlled, the top cover A is electrified to generate magnetic attraction, then the flow holes of the partition plates b1 are opened, meanwhile, the flow holes of other partition plates are ensured to be closed, after the transfer of the weight is completed, the flow holes of all the partition plates are controlled to be closed, and finally, the top cover is controlled to be powered off.

Step 1, installing a counterweight device which is divided into n sections (the number of the sections is consistent with that of the counterweight cavity) of the sub-counterweight cavity on the pipeline to obtain the vibration effective value of each section of pipeline. The tool for acquiring the pipeline vibration value can adopt an acceleration sensor, a strain gauge and the like.

Step 2, comparing vibration values of all sections of the pipeline, and positioning the position a of the pipeline with the maximum vibration_max。

And step 3, controlling a partition plate hole leading to the cavity section to be opened according to the position of the sub-counterweight cavity corresponding to the positioned position of the maximum vibration, and transferring the magnetic counterweight to the cavity section.

And step 4, closing all the partition plate openings after the balance weight position is transferred, and preventing the balance weight position from continuously moving.

And 5, detecting whether the running frequency of the compressor is changed or not, wherein the pipeline vibration is kept stable when the frequency of the compressor is not changed, and a new pipeline vibration characteristic can be caused when the frequency of the compressor is changed, so that the control program is required to be re-entered to change the position of the counterweight when the frequency of the compressor is changed.

Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A counterweight device capable of adjusting a pipeline counterweight, the counterweight device comprising:

2. The counterweight device of claim 1 wherein said bulkhead assembly comprises:

the partition plate is provided with a circulation hole;

the flow hole plugging assembly is used for plugging or opening the flow hole.

3. The counterweight device of claim 2 wherein said flow orifice closure assembly comprises:

a plugging plate;

4. The counterweight device of claim 2 wherein said divider plate is an annular plate and said flow openings are plural and evenly distributed about the center of said divider plate.

5. The counterweight device according to claim 1, wherein there are two magnetically attracted top covers, including a first magnetically attracted top cover and a second magnetically attracted top cover disposed at two ends of the double-layered sleeve, respectively.

6. The counterweight device of claim 1 wherein said magnetic counterweight material is flowable.

7. The counterweight device of claim 1 wherein said magnetic counterweight material initial position is disposed in a lowermost of said plurality of sub-counterweight cavities.

8. The counterweight device of claim 1 further comprising:

9. A control method for pipeline counterweight adjustment, which is characterized in that the control method adopts the counterweight device as claimed in any one of claims 1 to 8 to perform counterweight adjustment on a pipeline needing counterweight.

10. The control method according to claim 9, characterized by comprising: detecting the pipeline, and selecting the position with the maximum vibration value in the pipeline as a position to be balanced;

11. The method of claim 10, wherein energizing the magnetically attractive top cover to attract the magnetic weight material into the corresponding sub-weight cavity comprises:

12. The control method according to claim 11, characterized by further comprising:

and disconnecting the power supply of the magnetic top cover.

13. An air conditioner, characterized in that the air conditioner comprises: a compressor, a pipeline connected with the compressor and used for transmitting a refrigerant, and the counterweight device of any one of claims 1 to 8; wherein the counterweight device is disposed on the pipeline.

14. The air conditioner according to claim 13, wherein the air conditioner employs the control method according to any one of claims 9 to 12, the control method further comprising: