CN210861788U - Reversing device for heat exchange system and heat exchange system - Google Patents
Reversing device for heat exchange system and heat exchange system Download PDFInfo
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- CN210861788U CN210861788U CN201921855890.9U CN201921855890U CN210861788U CN 210861788 U CN210861788 U CN 210861788U CN 201921855890 U CN201921855890 U CN 201921855890U CN 210861788 U CN210861788 U CN 210861788U
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Abstract
The utility model discloses a switching-over device and heat transfer system for heat transfer system's switching-over device includes: the valve comprises a valve body, a valve core and a valve core, wherein the valve body is provided with a first port, a second port, a third port and a fourth port, and the valve core is arranged in the valve body and can move between a first position and a second position; and the switching unit is connected with the valve body to drive the valve core, wherein at least one of the first port, the second port, the third port and the fourth port comprises a first silencing section, a second silencing section and a third silencing section which is respectively connected with the first silencing section and the second silencing section, the first silencing section is connected with the valve body, and the flow area of the third silencing section is larger than that of the first silencing section and larger than that of the second silencing section. According to the utility model discloses a switching-over device for heat transfer system can solve the transmission sound problem to can guarantee assembly space, reduce cost, improve process efficiency, easily realize the standardization.
Description
Technical Field
The utility model relates to an air conditioner technical field particularly, relates to a switching-over device for heat transfer system and having a heat transfer system for heat transfer system's switching-over device.
Background
For an air conditioning system, the compressor intermittently sucks and exhausts air, so that obvious pressure pulsation exists in a pipeline of the air conditioning system, and the pressure pulsation can excite the vibration of structural parts of an indoor unit of the air conditioner so as to generate transmission sound. In the related art, a silencer is generally added to a pipe of an air conditioner outdoor unit, and the silencer is generally attached to a low pressure pipe in order to improve transmission sound for both cooling and heating. However, when the silencer is connected, the pipeline needs to be broken and then inserted into the end of the silencer for welding, so that the processing time is long, the process efficiency is low, and the working time efficiency is reduced; in addition, in order to improve the silencing quantity, the silencer has large outer diameter and weight, so that the pipeline space is limited, and the risk of deformation, pipe collision and pipe breakage of the pipeline after falling is caused.
In addition, because the restriction of noise elimination volume, only connect a muffler at the low pressure pipe, can not improve the transmission sound of refrigeration, the heating of various cold volume air conditioning system simultaneously, some systems need install 2 mufflers additional and can satisfy the requirement, for example, need connect the muffler again on the blast pipe, lead to pipeline cost to rise to need weld four welding mouths, still need the manual work with pipeline and muffler butt joint, the man-hour of processing is longer, and process efficiency is lower.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a switching-over device for heat transfer system, a transmission sound problem can be solved to a switching-over device for heat transfer system to can guarantee assembly space, reduce cost, improve process efficiency and man-hour efficiency.
The utility model discloses still provide one kind and have a heat transfer system for heat transfer system's switching-over device.
According to the utility model discloses a switching-over device for heat transfer system of first aspect embodiment, include: the valve comprises a valve body, a valve core and a valve seat, wherein the valve body is provided with a first port, a second port, a third port and a fourth port, and the valve core is arranged in the valve body and can move between a first position and a second position; the switching unit is connected with the valve body to drive the valve core, the first port is communicated with the fourth port and the second port is communicated with the third port when the valve core is at the first position, the first port is communicated with the third port and the second port is communicated with the fourth port when the valve core is at the second position, at least one of the first port, the second port, the third port and the fourth port comprises a first silencing section, a second silencing section and a third silencing section which is respectively connected with the first silencing section and the second silencing section, the first silencing section is connected with the valve body, and the flow area of the third silencing section is larger than the flow area of the first silencing section and larger than the flow area of the second silencing section.
According to the reversing device for the heat exchange system, at least one of the first port, the second port, the third port and the fourth port is set to be the silencing structure, so that the purpose of silencing can be realized, and the transmission sound and the indoor sound quality of the compressor are greatly improved; in addition, the number of the silencers arranged on the pipeline of the heat exchange system can be reduced, so that the assembly space is ensured, the cost is reduced, the problem of low efficiency caused by welding the silencers on the pipeline is solved, the process efficiency and the working hour efficiency are improved, and the standardization is easy to realize.
In addition, according to the utility model discloses a switching-over device for heat transfer system still has following additional technical characterstic:
according to some embodiments of the invention, the inner diameter of the first muffling segment is D1, the inner diameter of the second muffling segment is D2, the inner diameter of the third muffling segment is D3, D3 > D1 and D3 > D2.
In some embodiments of the invention, (D3/D1) ^2> 1.
In some embodiments of the invention, (D3/D2) ^2> 1.
According to some embodiments of the invention, a flow area of a junction of the first muffling segment and the third muffling segment decreases in a direction from the third muffling segment to the first muffling segment.
In some embodiments of the present invention, a junction of the first muffling segment and the third muffling segment is configured as a truncated cone.
According to some embodiments of the invention, a flow area of a junction of the second muffling segment and the third muffling segment decreases in a direction from the third muffling segment to the second muffling segment.
In some embodiments of the present invention, a junction of the second muffling segment and the third muffling segment is configured as a truncated cone.
According to some embodiments of the invention, a portion of the third sound attenuating section is configured as an arc.
According to the utility model discloses heat transfer system of second aspect embodiment includes: according to the utility model discloses a switching-over device for heat transfer system of first aspect embodiment; the compressor is provided with an air suction port and an air exhaust port, the first port is connected with the air exhaust port, and the second port is connected with the air suction port; one end of the indoor heat exchanger is connected with the third port; and one end of the outdoor heat exchanger is connected with the fourth port, and the other end of the outdoor heat exchanger is connected with the other end of the indoor heat exchanger.
According to the heat exchange system provided by the embodiment of the utility model, the reversing device for the heat exchange system is utilized, so that the purpose of noise elimination can be realized, and the transmission sound and the indoor sound quality of the compressor are greatly improved; in addition, the number of the silencers arranged on the pipeline of the heat exchange system can be reduced, so that the assembly space can be ensured, the cost can be reduced, the problem of low efficiency caused by welding the silencers on the pipeline is solved, the process efficiency and the working hour efficiency are improved, and the standardization is easy to realize.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a perspective view of a reversing device for a heat exchange system according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a valve body according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
fig. 4 is a schematic partial structural view of a heat exchange system according to an embodiment of the present invention;
fig. 5 is a schematic partial structural view of a heat exchange system according to an embodiment of the present invention;
FIG. 6 is a perspective view of a four-way valve in the related art;
FIG. 7 is a partial schematic view of a heat exchange system according to the related art;
fig. 8 is a graph showing the comparison between the sound muffling amount of the heat exchange system 1 according to embodiment 1 of the present invention and the sound muffling amount of the heat exchange system according to embodiment 1' of the related art;
fig. 9 is a graph showing a comparison result between the sound pressure of the heat exchange system 1 according to embodiment 1 of the present invention and the sound pressure of the heat exchange system according to embodiment 1' of the related art.
Reference numerals:
a heat exchange system 1,
A reversing device 10 for a heat exchange system,
A valve body 100, a first silencing segment 101, a second silencing segment 102, a third silencing segment 103,
A first port 110, a second port 120, a third port 130, a fourth port 140,
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
A heat exchange system according to an embodiment of the first aspect of the present invention is described below with reference to the accompanying drawings.
As shown in fig. 1-5, a reversing device 10 for a heat exchange system according to an embodiment of the present invention includes: a valve body 100 and a switching unit 200.
Specifically, the valve body 100 has a first port 110, a second port 120, a third port 130, and a fourth port 140, and a valve spool movable between a first position and a second position is disposed within the valve body 100. The switching unit 200 is connected to the valve body 100, and the switching unit 200 is used to drive the valve plug. For example, the switching unit 200 may communicate with the valve body 100, and the switching unit 200 may also be mechanically connected with the valve body 100. When the spool is in the first position, the first port 110 is in communication with the fourth port 140, and the second port 120 is in communication with the third port 130; when the spool is in the second position, the first port 110 is in communication with the third port 130 and the second port 120 is in communication with the fourth port 140.
Wherein at least one (i.e. one or more) of the first port 110, the second port 120, the third port 130 and the fourth port 140 comprises a first sound attenuating segment 101, a second sound attenuating segment 102 and a third sound attenuating segment 103. One end of the third muffling segment 103 is connected with one end of the first muffling segment 101, the other end of the third muffling segment 103 is connected with the second muffling segment 102, and the other end of the first muffling segment 101 is connected with the valve body 100, that is, the third muffling segment 103 is connected between the first muffling segment 101 and the second muffling segment 102. The flow area of the third muffling segment 103 is larger than the flow area of the first muffling segment 101, and the flow area of the third muffling segment 103 is larger than the flow area of the second muffling segment 102. For example, the flow area may refer to the cross-sectional area.
Thus, the sound waves emitted by the compressor 20 cause impedance mismatch due to the change of the cross section in the process of flowing through the first sound absorbing section 101, the third sound absorbing section 103 and the second sound absorbing section 102, so that a part of the sound waves interfere with the original sound waves, the sound energy flowing through the valve body 100 is reduced, the transmission sound caused by the compressor 20 is reduced, and the purpose of sound absorption is achieved.
According to the reversing device 10 for the heat exchange system provided by the embodiment of the utility model, at least one of the first port 110, the second port 120, the third port 130 and the fourth port 140 is set to be a silencing structure, so that the purpose of silencing can be realized, and the transmission sound and indoor sound quality of the compressor are greatly improved; in addition, the number of the silencers arranged on the pipeline of the heat exchange system can be reduced, so that the assembly space is ensured, the cost is reduced, the problem of low efficiency caused by welding the silencers on the pipeline is solved, the process efficiency and the working hour efficiency are improved, and the standardization is easy to realize.
According to some embodiments of the present invention, as shown in fig. 3, the inner diameter of the first muffling segment 101 is D1, the inner diameter of the second muffling segment 102 is D2, the inner diameter of the third muffling segment 103 is D3, D3 > D1 and D3 > D2. Thus, as the diameter of the third sound-deadening section 103 is respectively larger than the diameter of the first sound-deadening section 101 and the diameter of the second sound-deadening section 102, a diameter mutation is formed between the first sound-deadening section 101 and the second sound-deadening section 102, and a diameter mutation is formed between the second sound-deadening section 102 and the third sound-deadening section 103, so that a section mutation is formed, and a dilatation chamber is formed at the mutation position, and the sound-deadening effect is better.
In some embodiments of the present invention, the expansion ratio between the third muffling segment 103 and the first muffling segment 101 is (D3/D1) ^2, and (D3/D1) ^2> 1. Thus, a better silencing effect can be ensured.
In some embodiments of the present invention, the expansion ratio between the third muffling segment 103 and the second muffling segment 102 is (D3/D2) ^2, and (D3/D2) ^2> 1. Thus, a better silencing effect can be ensured.
According to some embodiments of the present invention, as shown in fig. 3, the flow area of the junction of the first muffling segment 101 and the third muffling segment 103 decreases in the direction from the third muffling segment 103 to the first muffling segment 101. In this way, the end of the third muffling segment 103 is configured as a necked configuration, forming a resistant flared tube, which improves the muffling volume of the four-way valve assembly without affecting the size of the existing four-way valve body structure. For example, when the first port 110 forms the above-described sound deadening structure, it is possible to optimize transmission sound caused by compressor discharge pulsation in the case of heating; when the second port 120 forms the above-mentioned noise reduction structure, it is possible to optimize the transmission sound caused by the suction pulsation of the compressor in the case of refrigeration; when the third port 130 is formed as the above-described noise reduction structure, it is possible to optimize transmission noise caused by suction or discharge pulsation of the compressor in the case of cooling or heating.
Further, as shown in fig. 3, the junction of the first sound-deadening segment 101 and the third sound-deadening segment 103 is configured in a truncated cone (for example, a truncated cone) shape. In this way, the flow area of the joint of the first sound-deadening segment 101 and the third sound-deadening segment 103 is gradually reduced in the direction from the third sound-deadening segment 103 to the first sound-deadening segment 101, and the sound-deadening effect can be further improved.
According to some embodiments of the present invention, as shown in fig. 3, the flow area of the junction of the second muffling segment 102 and the third muffling segment 103 decreases in the direction from the third muffling segment 103 to the second muffling segment 102. In this way, the end of the third muffling segment 103 is configured as a necked configuration, forming a resistant flared tube, which improves the muffling volume of the four-way valve assembly without affecting the size of the existing four-way valve body structure.
Further, as shown in fig. 3, the junction of the second sound-attenuating section 102 and the third sound-attenuating section 103 is configured in a truncated cone (e.g., a frustum cone) shape. In this way, the flow area of the joint of the second sound-deadening segment 102 and the third sound-deadening segment 103 is gradually reduced in the direction from the third sound-deadening segment 103 to the second sound-deadening segment 102, and the sound-deadening effect can be further improved.
According to some embodiments of the present invention, as shown in fig. 1, a portion of the third sound attenuating section 103 is configured as an arc. For example, the third sound-deadening segment 103 is configured in a U-shape. Thus, the length of the third sound-deadening segment 103 can be increased to further improve the sound-deadening effect, and the occupied space is small, so that the assembling space can be further secured.
Other constructions and operations of the reversing device 10 for a heat exchange system according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
A heat exchange system 1 according to an embodiment of the second aspect of the present invention is described below with reference to the drawings.
As shown in fig. 1 to 5, a heat exchange system 1 according to an embodiment of the second aspect of the present invention includes: according to the utility model discloses a switching-over device 10, compressor 20, indoor heat exchanger and outdoor heat exchanger for heat transfer system of first aspect embodiment.
Specifically, the compressor 20 has a suction port and a discharge port, the first port 110 is connected to the discharge port, and the second port 120 is connected to the suction port. One end of the indoor heat exchanger is connected to the third port 130. One end of the outdoor heat exchanger is connected to the fourth port 140, and the other end of the outdoor heat exchanger is connected to the other end of the indoor heat exchanger.
For example, the valve body 100 may be a four-way valve, and the switching unit 200 may be a solenoid valve, and the change of the position of the valve spool is controlled by controlling the energization and de-energization of the solenoid valve. The first port 110 is connected to an exhaust port through an exhaust pipe 21, the second port 120 is connected to a suction port through a return pipe 22, the third port 130 is connected to an indoor heat exchanger through an indoor connection pipe 25, and the fourth port 140 is connected to an outdoor heat exchanger through an outdoor connection pipe 24.
When the electromagnetic valve is powered off, the valve core is located at the first position, the refrigerant is compressed by the compressor 20 and converted into high-temperature high-pressure gas, the high-temperature high-pressure gas flows through the exhaust pipe 21, enters the first port 110, is discharged from the fourth port 140, enters the outdoor heat exchanger, is converted into low-temperature low-pressure liquid after being cooled and absorbed in the outdoor heat exchanger, is converted into low-temperature low-pressure gas after being cooled and released by the indoor heat exchanger, enters the second port 120 through the third port 130, and returns to the compressor 20 through the return pipe 22, so that a refrigeration cycle is formed, and at the moment, the reversing device 10 for the heat exchange system can reduce transmission sound caused by suction pulsation of the.
When the electromagnetic valve is energized, the valve core is located at the second position, the refrigerant is compressed by the compressor 20 and converted into high-temperature high-pressure gas, the gas flows through the exhaust pipe 21, enters the first port 110, is discharged from the third port 130, enters the indoor heat exchanger, is changed into low-temperature low-pressure liquid after the heat absorption and heat release of the indoor heat exchanger, is changed into low-temperature low-pressure gas after the heat absorption and heat release effects of the outdoor heat exchanger, enters the second port 120 through the fourth port 140, and returns to the compressor 20 through the return pipe 22, so that a heating cycle is formed, and at the moment, the reversing device 10 for the heat exchange system can reduce the transmission sound caused by the exhaust pulsation of the compressor 20.
According to the heat exchange system 1 provided by the embodiment of the utility model, the reversing device 10 for the heat exchange system can be used for realizing the purpose of noise elimination, and the transmission sound and indoor sound quality of the compressor are greatly improved; in addition, the number of the silencers arranged on the pipeline of the heat exchange system can be reduced, so that the assembly space can be ensured, the cost can be reduced, the problem of low efficiency caused by welding the silencers on the pipeline is solved, the process efficiency and the working hour efficiency are improved, and the standardization is easy to realize.
A heat exchange system 1 according to embodiment 1 of the present invention is described below with reference to the drawings.
As shown in fig. 1 to 5, in the present embodiment, the valve body 100 is a four-way valve, the first port 110 includes a first sound-deadening section 101, a second sound-deadening section 102, and a third sound-deadening section 103, and a muffler 23 is disposed between the third port 130 and the indoor heat exchanger. Wherein the expansion ratio between the third sound-muffling segment 103 and the first sound-muffling segment 101 is 6.52, i.e. (D3/D1) ^2 ^ 6.52. The expansion ratio between the third sound-deadening segment 103 and the second sound-deadening segment 102 is 6.52, i.e., (D3/D2) ^2 ^ 6.52. The total length of the first port 110 is 150mm, i.e. the sum of the length of the first sound attenuating segment 101, the length of the second sound attenuating segment 102 and the length of the tube of the third sound attenuating segment 103 is 150 mm.
As shown in fig. 6 and 7, in example 1', the heat exchange system was a 35-rated prototype, and the heat exchange system had a high transmission noise and a large internal hum at 146Hz, 194Hz, and 242 Hz.
As shown in fig. 8, in the low frequency region, the noise reduction amount of the heat exchange system 1 according to embodiment 1 of the present invention is significantly larger than that of the heat exchange system of embodiment 1' in the related art. As shown in fig. 9, in the low frequency range, the sound pressure of the heat exchange system 1 according to embodiment 1 of the present invention is significantly greater than the sound pressure of the heat exchange system according to embodiment 1' in the related art.
From this, according to the utility model discloses heat transfer system 1 utilizes the switching-over device 10 that is used for heat transfer system as described above, can improve the noise elimination volume, improves the problem of transmission sound, especially to the noise elimination volume of low frequency transmission noise elimination volume with the noise elimination volume of former machine pipeline than the grow, comparatively speaking noise elimination effect is showing.
Other constructions and operations of the heat exchange system 1 according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail herein.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, "first feature" and "second feature" may include one or more of the features, and the first feature may be "on" or "under" the second feature, and may include the first and second features being in direct contact, or the first and second features being in contact not directly but via another feature therebetween. The first feature being "on," "over" and "above" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.
It is to be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "a specific embodiment," "an example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A reversing device for a heat exchange system, comprising:
the valve comprises a valve body, a valve core and a valve seat, wherein the valve body is provided with a first port, a second port, a third port and a fourth port, and the valve core is arranged in the valve body and can move between a first position and a second position;
a switching unit connected to the valve body to drive the valve spool, the first port being in communication with the fourth port and the second port being in communication with the third port when the valve spool is in the first position, the first port being in communication with the third port and the second port being in communication with the fourth port when the valve spool is in the second position, wherein,
at least one of the first port, the second port, the third port and the fourth port comprises a first silencing section, a second silencing section and a third silencing section which is respectively connected with the first silencing section and the second silencing section, the first silencing section is connected with the valve body, and the flow area of the third silencing section is larger than that of the first silencing section and larger than that of the second silencing section.
2. The reversing device for a heat exchange system according to claim 1, wherein the inner diameter of the first muffling segment is D1, the inner diameter of the second muffling segment is D2, the inner diameter of the third muffling segment is D3, D3 > D1 and D3 > D2.
3. The reversing device for a heat exchange system according to claim 2, wherein (D3/D1) ^2> 1.
4. The reversing device for a heat exchange system according to claim 2, wherein (D3/D2) ^2> 1.
5. The reversing device for a heat exchange system according to claim 1, wherein the flow area at the junction of the first muffling segment and the third muffling segment decreases in the direction from the third muffling segment to the first muffling segment.
6. The reversing device for a heat exchange system according to claim 5, wherein the junction of the first muffling segment and the third muffling segment is configured as a truncated cone.
7. The reversing device for a heat exchange system according to claim 1, wherein the flow area at the junction of the second and third damper sections decreases in the direction from the third damper section to the second damper section.
8. The reversing device for a heat exchange system according to claim 7, wherein the junction of the second sound attenuating segment and the third sound attenuating segment is configured as a truncated cone.
9. The reversing device for a heat exchange system according to any one of claims 1 to 8, wherein a portion of the third damper segment is configured in an arc shape.
10. A heat exchange system, comprising:
the reversing device for a heat exchange system according to any one of claims 1 to 9;
the compressor is provided with an air suction port and an air exhaust port, the first port is connected with the air exhaust port, and the second port is connected with the air suction port;
one end of the indoor heat exchanger is connected with the third port;
and one end of the outdoor heat exchanger is connected with the fourth port, and the other end of the outdoor heat exchanger is connected with the other end of the indoor heat exchanger.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921855890.9U CN210861788U (en) | 2019-10-30 | 2019-10-30 | Reversing device for heat exchange system and heat exchange system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921855890.9U CN210861788U (en) | 2019-10-30 | 2019-10-30 | Reversing device for heat exchange system and heat exchange system |
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| CN210861788U true CN210861788U (en) | 2020-06-26 |
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| CN201921855890.9U Active CN210861788U (en) | 2019-10-30 | 2019-10-30 | Reversing device for heat exchange system and heat exchange system |
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| Country | Link |
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| CN (1) | CN210861788U (en) |
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