CN209557256U - Vapor compressor - Google Patents
Vapor compressor Download PDFInfo
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- CN209557256U CN209557256U CN201920098572.6U CN201920098572U CN209557256U CN 209557256 U CN209557256 U CN 209557256U CN 201920098572 U CN201920098572 U CN 201920098572U CN 209557256 U CN209557256 U CN 209557256U
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Abstract
The utility model provides a kind of vapor compressor, is related to Compressor Technology field.The vapor compressor includes transmission device, rotation axis, rotor, cooling device, fuel reserve tank and cabinet；The rotation axis is rotatably installed in the cabinet, and the transmission device and the rotation axis are sequentially connected, and the rotation axis is able to drive the rotor rotation；The fuel reserve tank is provided with oil liquid can be along rotation axis described in pipeline flow-direction to be cooled down after the oil liquid in the fuel reserve tank flows to the cooling device progress heat exchange, and oil liquid after cooling can be along fuel reserve tank described in pipeline flow-direction；The technical problems such as the transmission device uses magnetic drives, and motor shaft and compression chamber are not thermally shielded reinforcing in compressor in the prior art to alleviate, and motor can be difficult to stablly operate for a long time because temperature is excessively high.
Description
Technical field
The utility model relates to Compressor Technology field more particularly to a kind of vapor compressors.
Background technique
Vapor compress technique is currently widely used in the energy saving process of evaporation and concentration, the vapor that evaporation process generates
After being compressed by the compressor upgrading, it can be used for evaporation process itself heat supply, significantly reduce the energy consumption of evaporation process.But this steaming
The operating temperature of vapour compressor is normally no higher than 200 DEG C, the usually not high 1MPa of operating pressure, and the quality of recovered steam is not high, answers
It is also limited with field.With deepening continuously for industrial energy saving technology, more than a large amount of high-quality waste heats such as coke oven coke oven uprising tube coal gas of high temperature
Heat, blast furnace slag high-temperature residual heat need to recycle using high temperature (>=300 DEG C), high pressure (>=4MPa) vapor.
Patent CN104405641A discloses a kind of roots-type vapour compression machine, for solving existing vapour compression machine when biography
The problem of moving axis be easy to cause fluid leakage when larger to moving, and cooling is carried out to mechanical seal and guarantees that mechanical sealing member is in
In best effort environment.For the roots-type vapour compression machine when pressure is lower, sealing effect works as gas work still to guarantee
Make pressure it is higher when, since the pressure difference between working chamber and Seal Oil is excessive, will lead to seal failure.
Patent CN203035554U discloses a kind of roots-type stainless steel vapour compression machine, including compressor inlet, compression
Machine outlet, driving shaft, driven shaft, shell are respectively arranged with rotor and rotor, rotor and rotor or so on driving shaft and driven shaft
Two sides are provided with concave-board, and are adjacent to fixed above-mentioned rotor and rotor by fastening bolt and compressor case inwall, with shape
At 8-shaped rotor, and synchronous backward rotation is kept, and then improve the leakproofness of Roots Compressor, increases compression efficiency,
Its corrosion resistance is greatly enhanced.But above-mentioned apparatus is at high temperature (>=300 DEG C), due to motor shaft and compression chamber
It is not thermally shielded reinforcing, motor can be difficult to stablly operate for a long time since temperature is excessively high.
In consideration of it, there is an urgent need to a kind of water vapor pressures that can be used under high temperature (>=300 DEG C), high pressure (>=4MPa) environment
Contracting machine, is able to solve the above problem.
The information disclosed in the background technology section is intended only to deepen the reason to the general background technology of the utility model
Solution, and it is known to those skilled in the art existing to be not construed as recognizing or imply that the information is constituted in any form
Technology.
Utility model content
The first of the utility model is designed to provide a kind of wrist strap terminal base, to alleviate compressor in the prior art
The technologies such as middle motor shaft and compression chamber are not thermally shielded reinforcing, and motor can be difficult to stablly operate for a long time because temperature is excessively high are asked
Topic.
To achieve the goals above, the utility model uses following technical scheme:
A kind of vapor compressor provided by the utility model, including transmission device, rotation axis, rotor, cooling device, storage
Fuel tank and cabinet；
The rotation axis is rotatably installed in the cabinet, and the transmission device and the rotation axis are sequentially connected, described
Rotation axis is able to drive the rotor rotation；The fuel reserve tank is provided with oil liquid, and the oil liquid in the fuel reserve tank flows to described cold
But, can be along rotation axis described in pipeline flow-direction to be cooled down after device carries out heat exchange, oil liquid after cooling can be along pipe
Road flows to the fuel reserve tank；
The transmission device uses magnetic drives.
In any of the above-described technical solution, further, the transmission device includes internal rotor and outer rotor；
The internal rotor and the rotation axis connection, the outer rotor and motor axis connection, the internal rotor and described outer
Rotor magnetic transmission.
In any of the above-described technical solution, further, the transmission device further includes interior magnet steel, the interior magnet steel setting
On the internal rotor；
The transmission device further includes outer steel, and the outer steel is arranged on the outer rotor.
In any of the above-described technical solution, further, the outer rotor and the outer steel are respectively arranged with the peace of U-shaped
Tankage.
In any of the above-described technical solution, further, the rotation axis includes first rotating shaft and the second shaft, and described turn
Attached bag includes the first rotor and the second rotor；
The first rotating shaft is connect with the output end of the transmission device, and the first rotating shaft and the first rotor pass
Dynamic connection, the first rotor and second rotor engaged transmission, second rotor are connect with second rotating shaft transmission.
In any of the above-described technical solution, further, the first rotating shaft and second shaft are all made of hollow shaft；
The oil liquid for flowing through the cooling device can flow to the first rotating shaft and second shaft respectively corresponds respectively
Hollow structure.
In any of the above-described technical solution, further, the first rotating shaft and second shaft are arranged in parallel, and institute
The both ends for stating first rotating shaft and second shaft are respectively provided with bearing box, flow through the first rotating shaft and second shaft
Oil liquid can flow to the bearing box, and the oil liquid for flowing through the bearing box can flow to the fuel reserve tank.
In any of the above-described technical solution, further, be provided with oil liquid hole in the first rotating shaft, the oil liquid hole with
The hollow structure connection, flows out to the bearing box from the first rotating shaft for oil liquid.
In any of the above-described technical solution, further, the installation position for installing the rotation axis is provided in the cabinet
With the installation cavity for installing the rotor.
In any of the above-described technical solution, further, the fuel reserve tank is provided with air inlet；
For the air inlet for being passed through inert gas, inert gas can flow to the first rotating shaft and described the with oil liquid
The sealing of the bearing junction of two shafts.
The utility model has the following beneficial effects:
A kind of vapor compressor provided by the utility model, including transmission device, rotation axis, rotor, cooling device, storage
Fuel tank and cabinet；Rotation axis is rotatably installed in cabinet, and rotation axis and rotor are rotatablely connected, being capable of band when rotation axis rotation
The rotation of turn；The output end and rotation axis of transmission device are sequentially connected, and then drive rotation axis rotation by transmission device, with
Realize the rotation of rotor；Oil liquid is stored in fuel reserve tank；Oil liquid in fuel reserve tank can be passed through along pipeline flow-direction cooling device
After apparatus for supercooling cooling, rotation axis is flowed to cool down to rotation axis further along track, oil liquid after cooling can be again
It flows in fuel reserve tank, and then not only realizes the cooling to rotation axis, it can be by heat band that rotation axis generates during the work time
It walks, to ensure that rotation axis can be always in the temperature environment worked normally, it is ensured that rotation axis can stablly operate for a long time.
In actual use, transmission device uses magnetic drives, i.e., using magnetic force induction effect rotation, so that rotation
It is not contacted directly between axis and the related components in transmission device, so that the high heat that rotation axis generates will not be transmitted directly
To transmission device, thereby reducing transmission device because temperature is excessively high has risk.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram for the vapor compressor that embodiment provides；
Fig. 2 is the schematic diagram for the transmission device that embodiment provides.
Icon: 10- first rotating shaft；The second shaft of 20-；30- the first rotor；The second rotor of 40-；50- internal rotor；Outside 60-
Rotor；Magnet steel in 70-；80- outer steel；90- sealing ring；100- transmission device；The first hollow structure of 101-；102- oil liquid hole；
110- fuel reserve tank；120- pipeline；130- cabinet；140- bearing box；150- cooling device；160- motor shaft；170- separation sleeve；
The second hollow structure of 201-；301- oil passage.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In the description of the present invention, it should be noted that term " first ", " second " are used for description purposes only, and
It cannot be understood as indicating or implying relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Embodiment
As Figure 1-Figure 2, vapor compressor provided in this embodiment include transmission device 100, rotation axis, rotor,
Cooling device 150, fuel reserve tank 110 and cabinet 130；Rotation axis is rotatably installed in cabinet 130, transmission device 100 and rotation axis
Transmission connection, rotation axis are able to drive rotor rotation；Fuel reserve tank 110 is provided with oil liquid, and the oil liquid in fuel reserve tank 110 flows to cooling
After device 150 carries out heat exchange, rotation axis can be flowed to be cooled down along pipeline 120, oil liquid after cooling can be along pipe
Road 120 flows to fuel reserve tank 110；Transmission device 100 uses magnetic drives.
Specifically, the vapor compressor includes transmission device 100, rotation axis, rotor, cooling device 150, fuel reserve tank
110 and cabinet 130, cabinet 130 is capable of providing the safe space of an installation components, has good protective, simultaneously also
It is right to prevent impurity or air in external environment etc. to enter inside cabinet 130 as far as possible with good leakproofness
Components in cabinet 130 generate corrosion equivalent damage；Rotation axis is rotatably installed in cabinet 130, and rotation axis and rotor rotate
Connection is able to drive rotor rotation when rotation axis rotation；The output end and rotation axis of transmission device 100 are sequentially connected, in turn
Rotation axis rotation is driven by transmission device 100, to realize the rotation of rotor.
In actual use, it is additionally provided with fuel reserve tank 110 and cooling device 150, is stored with oil liquid in fuel reserve tank 110；
Oil liquid in fuel reserve tank 110 can flow to cooling device 150 along pipeline 120, after the cooling of apparatus for supercooling 150, further along
Track flows to rotation axis to cool down to rotation axis, and oil liquid after cooling can flow to again in fuel reserve tank 110, and then not only
Realize the cooling to rotation axis, the heat that can generate during the work time rotation axis is taken away, to ensure that rotation axis can begin
Eventually in the temperature environment worked normally, it is ensured that rotation axis can stablly operate for a long time.
Wherein, transmission device 100 use magnetic drives, i.e., using magnetic force induction effect rotation so that rotation axis with
It is not contacted directly between related components in transmission device 100, so that the high heat that rotation axis generates will not be transmitted directly
To transmission device 100, thereby reducing transmission device 100 because temperature is excessively high has risk.
Wherein, cooling device 150 is U-tube, including inner and outer tubes, inner tube be placed in the tube body of outer tube, and inner tube with
The pipeline 120 that fuel tank flows out oil liquid is connected to, and recirculated cooling water is provided in outer tube, to ensure to the oil for flowing through cooling device 150
Liquid cools.
In the optional scheme of the present embodiment, as Figure 1-Figure 2, transmission device 100 includes internal rotor 50 and outer rotor
60；Internal rotor 50 and rotation axis connection, outer rotor 60 are connect with motor shaft 160, internal rotor 50 and 60 magnetic drives of outer rotor.
Further, transmission device 100 further includes interior magnet steel 70, and interior magnet steel 70 is arranged on internal rotor 50；Transmission device
100 further include outer steel 80, and outer steel 80 is arranged on outer rotor 60.
Further, outer rotor 60 and outer steel 80 are respectively arranged with the mounting groove of U-shaped.
Specifically, transmission device 100 is driving motor, using magnetic drives；Wherein, transmission device 100 includes interior turns
Son 50 and outer rotor 60, and interior magnet steel 70 is provided on internal rotor 50, outer steel 80, interior 70 He of magnet steel are provided on outer rotor 60
Outer steel 80 can generate magnetic force, and then magnetic force induction occurs.
In actual use, internal rotor 50 and rotation axis connection, outer rotor 60 is connect with motor shaft 160, when motor shaft 160
Rotation drives outer rotor 60 to rotate, the interaction by interior magnet steel 70 and outer steel 80 between outer rotor 60 and internal rotor 50
Magnetic force generate magnetic force induction effect, and then by magnetic drives realize outer rotor 60 drive internal rotor 50 rotation, internal rotor 50
It is able to drive rotation axis and internal rotor 50 rotates synchronously, that is, realize the rotation of rotation axis.
Wherein, the first mounting groove is provided on outer steel 80, outer rotor 60 is mounted in first mounting groove, i.e., outer magnetic
Iron is sleeved and fixed in the outside of outer rotor 60；In second mounting groove that is internally provided with of outer rotor 60, one end of rotation axis with it is interior
Rotor 50 is connected by key, and rotation axis is also rotatablely connected with the pump cover on transmission device 100 by bearing, and internal rotor 50 stretches to
In second mounting groove, and be placed in the second mounting groove by the connection relationship of rotation axis and casing, and with outer rotor 60 it
Between maintain magnetic force space, convenient for interacting between outer rotor 60 and internal rotor 50.
Wherein, outer rotor 60 is mounted on pump cover, and is additionally provided with sealing ring 90 in junction；Meanwhile in outer steel 80
60 junction of outer rotor is provided with separation sleeve 170.
Wherein, rotation axis is respectively set towards one end of internal rotor 50 and one end of motor shaft 160 towards outer steel 80
There is connecting pin, and axis hole is respectively set in corresponding position on internal rotor 50 and outer steel 80, and then the connecting pin of rotation axis is stretched
Enter the axis hole key connection on internal rotor 50, the axis hole that outer steel 80 is protruded into the connecting pin of motor shaft 160 is keyed to.
Wherein, the first mounting groove and the U-shaped slot of the second mounting groove.
In the optional scheme of the present embodiment, as Figure 1-Figure 2, rotation axis includes first rotating shaft 10 and the second shaft
20, rotor includes the first rotor 30 and the second rotor 40；First rotating shaft 10 is connect with the output end of transmission device 100, and first
Shaft 10 and the first rotor 30 are sequentially connected, the first rotor 30 and the second rotor 40 engaged transmission, the second rotor 40 and second turn
Axis 20 is sequentially connected.
Further, first rotating shaft 10 and the second shaft 20 are all made of hollow shaft；The oil liquid for flowing through cooling device 150 can
First rotating shaft 10 and the corresponding hollow structure of the second shaft 20 are flowed to respectively.
Further, first rotating shaft 10 and the second shaft 20 are arranged in parallel, and the two of first rotating shaft 10 and the second shaft 20
End is respectively provided with bearing box 140, and the oil liquid for flowing through first rotating shaft 10 and the second shaft 20 can flow to bearing box 140, and flow through
The oil liquid of bearing box 140 can flow to fuel reserve tank 110.
Further, oil liquid hole 102 is provided in first rotating shaft 10, oil liquid hole 102 is connected to hollow structure, is used for oil liquid
Bearing box 140 is flowed out to from first rotating shaft 10.
Further, the installation position of installation rotation axis and the installation cavity of installation rotor are provided in cabinet 130.
Specifically, rotation axis includes first rotating shaft 10 and the second shaft 20, rotor includes the first rotor 30 and second turn
Son 40, first rotating shaft 10 is correspondingly connected with the first rotor 30, and the second shaft 20 is correspondingly connected with the second rotor 40；Meanwhile first rotating shaft
10 also connect with internal rotor 50, and then drive first rotating shaft 10 to rotate when internal rotor 50 rotates, and the rotation of first rotating shaft 10 again can
To drive the first rotor 30 to rotate；The first rotor 30 and the second rotor 40 can engagement rotation, i.e., when the first rotor 30 rotates,
Rotation can be transferred to the second rotor 40, so that the second rotor 40 also starts turning, the rotation of the second rotor 40 again may be used
To drive the rotation of the second shaft 20.
Wherein, the of the second shaft 20 of the first installation position and installation of installation first rotating shaft 10 is provided in cabinet 130
Two installation positions, the first installation position and the second installation position are arranged in parallel, so that first rotating shaft 10 and the second shaft 20 can be put down
Row setting；And be respectively arranged with bearing box 140 at the both ends of first rotating shaft 10 and the second shaft 20, i.e., for respectively with first
The position that shaft 10 is connected with 20 bearing of the second shaft.Meanwhile the installation cavity of installation rotor is additionally provided in cabinet 130, the
One rotor 30 and the second rotor 40 are installed in the installation cavity.
Wherein, first rotating shaft 10 and the second shaft 20 are all made of hollow shaft, that is, are separately provided for the sky that oil liquid passes through
Core structure, corresponding first hollow structure 101 of first rotating shaft 10, corresponding second hollow structure 201 of the second shaft 20；And first
Oil liquid hole 102 is additionally provided in shaft 10, oil liquid hole 102 is connected to the first hollow structure 101 in first rotating shaft 10, while
Oil liquid flow channel is provided in the first rotor 30, so that first can be flowed to by flowing through the oil liquid of the first hollow structure 101
Rotor 30, and the first hollow structure 101 is flowed to after flowing through in the first rotor 30 again, it is flowed out along the first hollow structure 101.
As shown in Figure 1, wherein arrow meaning is oil liquid flow direction；In actual use, the oil liquid in fuel tank being capable of edge
Pipeline 120 flow to cooling device 150, after 150 water cooling of apparatus for supercooling, flowing to first rotating shaft respectively along pipeline 120
10 and second shaft 20, while still flow to being located in the bearing box 140 of first rotating shaft 10,20 end of the second shaft；Flow through first
The oil liquid of shaft 10 can flow to the oil passage 301 inside the first rotor 30 along the oil liquid hole 102 in first rotating shaft 10, so
First rotating shaft 10 is flowed to again along oil passage 301 afterwards, then part in other end bearing box 140 is located at by first rotating shaft 10
Oil liquid hole 102 flows out in bearing box 140；Oil liquid in two bearing boxs 140 can flow to fuel tank again, and then one group of completion is cold
But oil circulation takes away the heat generated in the course of work.
In the optional scheme of the present embodiment, as Figure 1-Figure 2, fuel reserve tank 110 is provided with air inlet；Air inlet is used for
It is passed through inert gas, inert gas can flow to the sealing of the bearing junction of first rotating shaft 10 and the second shaft 20 with oil liquid.
In some embodiments, it is provided with air inlet on fuel reserve tank 110, it can be into fuel reserve tank 110 by air inlet
Inert gas is poured, the flowing that inert gas is capable of oil liquid flows to first rotating shaft 10, the second shaft 20, the first rotor 30 and axis
It holds in box 140, and then ensures that whole device inner sealing is good, i.e., by hermetic seal to ensure that device leakproofness is good, together
When ensure that biggish pressure difference will not be generated between working chamber and Seal Oil by hermetic seal.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of vapor compressor, which is characterized in that including transmission device (100), rotation axis, rotor, cooling device
(150), fuel reserve tank (110) and cabinet (130)；
The rotation axis is rotatably installed in the cabinet (130), and the transmission device (100) and rotation axis transmission connect
It connects, the rotation axis is able to drive the rotor rotation；The fuel reserve tank (110) is provided with oil liquid, and the fuel reserve tank (110) is interior
Oil liquid flow to the cooling device (150) carry out heat exchange after, the rotation axis can be flowed to along pipeline (120) to carry out
Cooling, oil liquid after cooling can flow to the fuel reserve tank (110) along pipeline (120)；
The transmission device (100) uses magnetic drives.
2. vapor compressor according to claim 1, which is characterized in that the transmission device (100) includes internal rotor
(50) and outer rotor (60)；
The internal rotor (50) and the rotation axis connection, the outer rotor (60) connect with motor shaft (160), the internal rotor
(50) with the outer rotor (60) magnetic drives.
3. vapor compressor according to claim 2, which is characterized in that the transmission device (100) further includes interior magnetic
Steel (70), the interior magnet steel (70) are arranged on the internal rotor (50)；
The transmission device (100) further includes outer steel (80), and the outer steel (80) is arranged on the outer rotor (60).
4. vapor compressor according to claim 3, which is characterized in that the outer rotor (60) and the outer steel
(80) it is respectively arranged with the mounting groove of U-shaped.
5. vapor compressor according to claim 1, which is characterized in that the rotation axis include first rotating shaft (10) and
Second shaft (20), the rotor include the first rotor (30) and the second rotor (40)；
The first rotating shaft (10) connect with the output end of the transmission device (100), and the first rotating shaft (10) with it is described
The first rotor (30) transmission connection, the first rotor (30) and second rotor (40) engaged transmission, second rotor
(40) it is sequentially connected with second shaft (20).
6. vapor compressor according to claim 5, which is characterized in that the first rotating shaft (10) and second turn described
Axis (20) is all made of hollow shaft；
The oil liquid for flowing through the cooling device (150) can flow to the first rotating shaft (10) and second shaft (20) respectively
Corresponding hollow structure.
7. vapor compressor according to claim 6, which is characterized in that the first rotating shaft (10) and second turn described
Axis (20) is arranged in parallel, and the both ends of the first rotating shaft (10) and second shaft (20) are respectively provided with bearing box (140),
The oil liquid for flowing through the first rotating shaft (10) and second shaft (20) can flow to the bearing box (140), and flow through institute
The oil liquid for stating bearing box (140) can flow to the fuel reserve tank (110).
8. vapor compressor according to claim 7, which is characterized in that be provided with oil liquid on the first rotating shaft (10)
Hole (102), the oil liquid hole (102) are connected to the hollow structure, flow out to institute from the first rotating shaft (10) for oil liquid
State bearing box (140).
9. vapor compressor according to claim 1-8, which is characterized in that setting in the cabinet (130)
There is the installation position for installing the rotation axis and the installation cavity of the rotor is installed.
10. according to the described in any item vapor compressors of claim 5-8, which is characterized in that fuel reserve tank (110) setting
There is air inlet；
For the air inlet for being passed through inert gas, inert gas can flow to the first rotating shaft (10) and described the with oil liquid
The sealing of the bearing junction of two shafts (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920098572.6U CN209557256U (en) | 2019-01-21 | 2019-01-21 | Vapor compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920098572.6U CN209557256U (en) | 2019-01-21 | 2019-01-21 | Vapor compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209557256U true CN209557256U (en) | 2019-10-29 |
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ID=68308557
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920098572.6U Active CN209557256U (en) | 2019-01-21 | 2019-01-21 | Vapor compressor |
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| Country | Link |
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| CN (1) | CN209557256U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538479A (en) * | 2019-01-21 | 2019-03-29 | 济南冶金化工设备有限公司 | Vapor compressor |
-
2019
- 2019-01-21 CN CN201920098572.6U patent/CN209557256U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538479A (en) * | 2019-01-21 | 2019-03-29 | 济南冶金化工设备有限公司 | Vapor compressor |
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