CN206073493U - Handpiece Water Chilling Units - Google Patents
Handpiece Water Chilling Units Download PDFInfo
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- CN206073493U CN206073493U CN201621047079.4U CN201621047079U CN206073493U CN 206073493 U CN206073493 U CN 206073493U CN 201621047079 U CN201621047079 U CN 201621047079U CN 206073493 U CN206073493 U CN 206073493U
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Abstract
The utility model discloses a kind of handpiece Water Chilling Units, including：First compressor, the second compressor, condenser, vaporizer and orifice union.First compressor has the first air entry and first row QI KOU, second compressor has the second air entry and second exhaust port, condenser is with the first condensation port and the second condensation port, first row QI KOU and second exhaust port are connected with the first condensation port, vaporizer is downward film evaporator, there is vaporizer the first evaporation port and the second evaporation port, the first air entry and the second air entry to be connected with the second evaporation port, and orifice union is connected between the second condensation port and the first evaporation port.According to handpiece Water Chilling Units of the present utility model, simple structure and with higher IPLV values, maintain easily and keep in repair, and by vaporizer is arranged to downward film evaporator, such that it is able to heat exchange efficiency can be improved while coolant usage amount is reduced.
Description
Technical field
This utility model is related to refrigeration technology field, more particularly, to a kind of handpiece Water Chilling Units.
Background technology
In correlation technique, except improve unit mark condition COP (Coefficient of in new Energy Efficiency Standard
Performance, Energy Efficiency Ratio) numerical value, while to handpiece Water Chilling Units Integrated part-load value IPLV (Integrated
Part Load Value) propose and be distinctly claimed, and participate directly in the evaluation of unit efficiency grade.Therefore improve unit
IPLV values become a direction of each producer's primary study.
Utility model content
This utility model is intended at least to solve to a certain extent one of technical problem in correlation technique.For this purpose, this reality
With a kind of handpiece Water Chilling Units of new proposition, the simple structure of the handpiece Water Chilling Units and with higher IPLV values.
According to the handpiece Water Chilling Units of this utility model embodiment, including：First compressor and the second compressor, the first compressor
With the first air entry and first row QI KOU, the second compressor has the second air entry and second exhaust port；Condenser, it is described cold
, with the first condensation port and the second condensation port, the first row QI KOU and the second exhaust port are with described first for condenser
Condensation port is connected；Vaporizer, the vaporizer are downward film evaporator, and the vaporizer is with the first evaporation port and second
Evaporation port, first air entry and second air entry are connected with second evaporation port；Orifice union, it is described
Orifice union is connected between the second condensation port and first evaporation port.
According to the handpiece Water Chilling Units of this utility model embodiment, by being total to using two parallel connection compressors, and two compressors
With a condenser and a vaporizer, such that it is able to improve the IPLV values of handpiece Water Chilling Units, while handpiece Water Chilling Units can be simplified
Structure, facilitates the maintenance and maintenance of handpiece Water Chilling Units, and by vaporizer is arranged to downward film evaporator, such that it is able to subtract
Heat exchange efficiency can be improved while few coolant usage amount, such that it is able to further improve handpiece Water Chilling Units IPLV of handpiece Water Chilling Units
Value and combination property.
According to some embodiments of the present utility model, the orifice union includes the first throttle device being connected in parallel with each other
And second throttling device, in the branch road that the branch road and the second throttling device that the first throttle device is located is located at least
One is provided with on-off valve.
According to some embodiments of the present utility model, the first throttle device is restricting orifice, the second throttling dress
Electric expansion valve is set to, the on-off valve is located on the branch road that the second throttling device is located.
The branch road being located according to some embodiments of the present utility model, the first throttle device and the second throttling dress
Put.
According to some embodiments of the present utility model, the vaporizer has two second evaporation ports, two institutes
State in the second evaporation port one to be connected with first air entry and another is connected with second air entry.
According to some embodiments of the present utility model, the vaporizer has second evaporation port, and described the
Two evaporation ports are connected by the first connecting tube with first air entry, and second air entry passes through the second connecting tube and institute
State the connection of the first connecting tube.
According to some embodiments of the present utility model, the handpiece Water Chilling Units also include oil eliminator, the separating of oil utensil
There are air inlet, oil-out and gas outlet, first compressor has the first oil-in, and second compressor enters with second
Hydraulic fluid port, the first row QI KOU and the second exhaust port are connected with the air inlet, first oil-in and described
Two oil-ins are connected with the oil-out, and the gas outlet is connected with the described first condensation port.
According to some embodiments of the present utility model, the condenser includes condensing housing and is limited to the condensation housing
Interior refrigerant passage, the oil eliminator are located in the condensation housing and are spaced apart with the refrigerant passage, and described first is cold
Solidifying port and the second condensation port are respectively formed at the two ends of the refrigerant passage.
According to some embodiments of the present utility model, the oil eliminator has two oil-outs, goes out described in two
One in hydraulic fluid port is connected with first oil-in and another is connected with second oil-in.
According to some embodiments of the present utility model, the oil eliminator has an oil-out, the oil-out
It is connected by the 3rd connecting tube with first oil-in, second oil-in is connected with the described 3rd by the 4th connecting tube
Pipe is connected.
Description of the drawings
Fig. 1 is the schematic diagram of the handpiece Water Chilling Units according to this utility model embodiment.
Reference：
Handpiece Water Chilling Units 100,
First compressor 1, the first air entry 11, first row QI KOU 12, the second compressor 2, the second air entry 21, second row
QI KOU 22,
Condenser 3, condenses housing 31, cooling water inlet 311, coolant outlet 312, the second condensation port 32, vaporizer
4, evaporation housing 41, chilled water import 411, chilled water outlet 412, the first evaporation port 42, the second evaporation port 43,
First throttle device 51, second throttling device 52, on-off valve 53, device for drying and filtering 54,
Oil eliminator 6, air inlet 61,
Temperature sensor 7, hydraulic pressure difference switch 8.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings.Below by
The embodiment being described with reference to the drawings is exemplary, it is intended to for explaining this utility model, and it is not intended that new to this practicality
The restriction of type.
In description of the present utility model, it is to be understood that term " " center ", " on ", D score, " vertical ", " level ",
The orientation or position relationship of the instruction such as " top ", " bottom " " interior ", " outward ", " axial direction ", " radial direction ", " circumference " is based on shown in the drawings
Orientation or position relationship, are for only for ease of description this utility model and simplify description, rather than indicate or imply the dress of indication
Put or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this utility model
Restriction.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, such as two
It is individual, three etc., unless otherwise expressly limited specifically.
In this utility model, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, it is for example, it may be fixedly connected, or be detachably connected or integral；Can be
It is mechanically connected, or electrically connects or can communicate each other；Can be joined directly together, it is also possible to by the indirect phase of intermediary
Even, can be connection or the interaction relationship of two elements of two element internals, unless otherwise clearly restriction.For this
For the those of ordinary skill in field, concrete meaning of the above-mentioned term in this utility model can be understood as the case may be.
The handpiece Water Chilling Units 100 according to this utility model embodiment are described below with reference to Fig. 1.
As shown in Figure 1 (in figure, filled arrows are coolant flow direction, and hollow arrow is the flow direction of water), according to this reality
With the handpiece Water Chilling Units 100 of new embodiment, including：First compressor 1, the second compressor 2, condenser 3, vaporizer 4 and throttling
Component.
Specifically, the first compressor 1 has the first air entry 11 and a first row QI KOU 12, and the second compressor 2 has the
Two air entries 21 and second exhaust port 22.Condenser 3 is with the first condensation port and the second condensation port 32, first row QI KOU 12
It is connected with the first condensation port with second exhaust port 22.Vaporizer 4 has the first evaporation port 42 and the second evaporation port 43,
First air entry 11 and the second air entry 21 are connected with the second evaporation port 43.Orifice union is connected to the second condensation port 32
And first between evaporation port 42.
Condenser 3 includes the refrigerant passage for condensing housing 31 and being limited in condensation housing 31, the first condensation port and the
Two condensation ports 32 are respectively formed at the two ends of the refrigerant passage, and condensation housing 31 is provided with cooling water inlet 311 and cooling water
Outlet 312.Vaporizer 4 includes the refrigerant passage for evaporating housing 41 and being limited in evaporation housing 41,42 He of the first evaporation port
Second evaporation port 43 is respectively formed at the two ends of the refrigerant passage, and evaporation housing 41 is provided with chilled water import 411 and freezing
Water out 412.
Wherein, connect on cooling water inlet 311, coolant outlet 312, chilled water import 411, chilled water outlet 412 respectively
It is connected to water service pipe.Temperature sensor 7 can be provided with each water service pipe, with detect condenser 3 and vaporizer 4 inflow temperature,
Leaving water temperature.Between the water service pipe at water service pipe and coolant outlet 312 at cooling water inlet 311 and chilled water import
Hydraulic pressure difference switch 8 can be set between the water service pipe at water service pipe and chilled water outlet 412 at 411, for detecting current
Amount.
When handpiece Water Chilling Units 100 work, according to actual condition, can be the first compressor 1 and the second compressor 2 while ginseng
With a participation refrigeration work in refrigeration work, or the first compressor 1 and the second compressor 2.In the first compressor 1
When simultaneously participating in refrigeration work with the second compressor 2, the working condition of the first compressor 1 and the second compressor 2 can include with
Lower three kinds：1) the first compressor 1 and the second compressor 2 can be operated at full capacity；2) the first compressor 1 and the second compressor 2
In one operate at full capacity and another part-load operation, can for example be the first compressor 1 operate at full capacity and second pressure
2 part-load operation of contracting machine, or 1 part-load operation of the first compressor and the second compressor 2 operate at full capacity；3) the first pressure
Contracting machine 1 and the second compressor 2 can be with part-load operations.One in the first compressor 1 and the second compressor 2 participates in system
During cold work, the compressor for participating in refrigeration work can be operated at full capacity, it is also possible to part-load operation.
The course of work of the handpiece Water Chilling Units 100 is described below.
When the first compressor 1 and the second compressor 2 simultaneously participate in refrigeration work, follow in the refrigeration system of water chiller
First air entry 11 of first compressors of coolant difference Jing 1 of ring, the second air entry 21 of the second compressor 2 are compressed into first
In machine 1, the second compressor 2.Coolant distinguishes the first of the first compressors of Jing 1 Jing after the first compressor 1 and the second compressor 2 compress
Air vent 12, the second exhaust port 22 of the second compressor 2 are discharged.From the coolant Jing that the first compressor 1 and the second compressor 2 are discharged
First condensation port of condenser 3 is flowed in the refrigerant passage of condenser 3, and coolant condenses heat release in condenser 3, while cooling
Water enters the coolant condensed in housing 31 and in the refrigerant passage with condenser 3 and is exchanged heat from cooling water inlet 311, cooling water
Condensation housing 31 is flowed out from coolant outlet 312 after heat exchange.
Flow out from the second condensation port 32 after coolant condensation heat release in the refrigerant passage of condenser 3, flow through orifice union
Carry out reducing pressure by regulating flow.Then, coolant is entered in evaporation housing 41 from first evaporation port 42 of vaporizer 4 refrigerant passage and
Evaporation endothermic in vaporizer 4, while water enters the refrigerant passage evaporated in housing 41 and with vaporizer 4 from chilled water import 411
Interior coolant is exchanged heat, and forms chilled water and flow out evaporation housing 41 from chilled water outlet 412 after water heat exchange.Vaporizer 4
Flow out from the second evaporation port 43 after refrigerant evaporation heat absorption in refrigerant passage, and the first air-breathing of the first compressors of Jing 1 respectively
Second air entry 21 of the 11, second compressor 2 of mouth is flow back in the first compressor 1, the second compressor 2, to form refrigerant circulation.
In the first compressor 1 and the second compressor 2 during a participation refrigeration work, the cyclic process of coolant may be referred to
Above-mentioned to obtain, now coolant is only compressed by the said one in the first compressor 1 and the second compressor 2.
By different operating modes, and the system by optimizing handpiece Water Chilling Units 100 by two compressor parallels, can be met,
The IPLV values (Integrated Part Load Value, Integrated part-load value) of handpiece Water Chilling Units 100 can be improved,
So that handpiece Water Chilling Units 100 not only can have high Energy Efficiency Ratio operating at full capacity, and handpiece Water Chilling Units 100 are in sub-load work
Still there is when making high Energy Efficiency Ratio, such that it is able to improve the comprehensive energy efficiency ratio of water chiller, the synthesis of handpiece Water Chilling Units 100 is lifted
Performance.
Wherein, vaporizer 4 is downward film evaporator 4, by using the advantage of downward film evaporator 4, can reduce cold
Heat exchange efficiency can be improved while matchmaker's usage amount, such that it is able to further improve the IPLV values and synthesis of handpiece Water Chilling Units 100
Performance.
In addition, by two compressors are shared a condenser 3 and a vaporizer 4, handpiece Water Chilling Units 100 can be simplified
Structure, reduces cost facilitates the cleaning and maintenance of condenser 3 and vaporizer 4.
According to the handpiece Water Chilling Units 100 of this utility model embodiment, by using two parallel connection compressors, and two compressors
A condenser 3 and a vaporizer 4 are shared, such that it is able to improve the IPLV values of handpiece Water Chilling Units 100, while cold water can be simplified
The structure of unit 100, facilitates the maintenance and maintenance of handpiece Water Chilling Units 100, and by vaporizer 4 is arranged to downward film evaporator
4, such that it is able to heat exchange efficiency can be improved while coolant usage amount is reduced, such that it is able to further improve handpiece Water Chilling Units
100 handpiece Water Chilling Units 100IPLV value and combination property.
In some embodiments of the present utility model, with reference to Fig. 1, orifice union includes the first throttle being connected in parallel with each other
Device 51 and second throttling device 52, in the branch road that the branch road and second throttling device 52 that first throttle device 51 is located is located
At least one is provided with on-off valve 53.Thus, by controlling opening or closing for on-off valve 53, first throttle device 51 can be made
Work with a job in second throttling device 52 or two, such that it is able to the section of orifice union is adjusted according to actual condition
Stream effect, so that orifice union is preferably matched with the coolant circulating system of handpiece Water Chilling Units 100, further optimizes system.
For example, can only be that 51 place branch road of first throttle device is provided with on-off valve 53, now can be according to actual work
Condition is needed by opening or closing the on-off valve 53, so that first throttle device 51 is connected with coolant circulating system or blocked.When
When on-off valve 53 is opened, first throttle device 51 and second throttling device 52 can play throttling action；When on-off valve 53 is closed
When closing, only second throttling device 52 can play throttling action.
Again for example, can only be that 52 place branch road of second throttling device is provided with on-off valve 53, now can be according to reality
Operating mode is needed by opening or closing the on-off valve 53, so that second throttling device 52 is connected with coolant circulating system or blocked.
When on-off valve 53 is opened, first throttle device 51 and second throttling device 52 can play throttling action；When on-off valve 53
During closing, only first throttle device 51 can play throttling action.
Again for example, it may be being equipped with 51 place branch road of first throttle device and on 51 place branch road of first throttle device
On-off valve 53, now can further expand the range of choice.By controlling on-off valve 53, first throttle device 51 can be only made
Work, it is also possible to only make second throttling device 52 work, or first throttle device 51 and second throttling device 52 can also be made
Work simultaneously.
Alternatively, first throttle device 51 can be restricting orifice, and second throttling device 52 can be electric expansion valve, lead to
Disconnected valve 53 can be located on the branch road at the place of second throttling device 52.Thus, by above-mentioned restricting orifice and electric expansion valve
Use cooperatively, on the one hand on the other hand restriction effect can be adjusted by the aperture of regulation electric expansion valve with reduces cost,
So that the holistic cost of orifice union is relatively low and adjustable, so that orifice union is preferably matched with handpiece Water Chilling Units 100, enter one
Step ground optimization system.
In some embodiments of the present utility model, the branch road being located with reference to Fig. 1, first throttle device 51 and second throttles
Device for drying and filtering 54 is serially connected with least one of branch road that device 52 is located.Thus, the device for drying and filtering 54 by arranging
Filtration can be dried to coolant.For example, can be serially connected with device for drying and filtering on 51 place branch road of first throttle device
54, it is also possible to be only to be serially connected with device for drying and filtering 54, or first throttle device on the branch road at the place of second throttling device 52
Device for drying and filtering 54 is serially connected with 52 place branch road of 51 place branch roads and second throttling device.
In some embodiments of the present utility model, with reference to Fig. 1, vaporizer 4 can have two the second evaporation ports 43,
One in two the second evaporation ports 43 is connected with the first air entry 11 and another is connected with the second air entry 21.
Certainly, vaporizer 4 can also only have second evaporation port 43, and now the second evaporation port 43 can be with the
One air entry 11 is connected by the first connecting tube, and the second air entry 21 can be connected with the first connecting tube by the second connecting tube.
In some embodiments of the present utility model, handpiece Water Chilling Units 100 can also include oil eliminator 6, and oil eliminator 6 has
There are air inlet 61, oil-out and gas outlet, the first compressor 1 has the first oil-in, and the second compressor 2 has the second oil-feed
Mouthful, first row QI KOU 12 and second exhaust port 22 are connected with air inlet 61, the first oil-in and the second oil-in with it is fuel-displaced
Mouth is connected, and gas outlet is connected with the first condensation port.Thus, coolant is distinguished Jing after the first compressor 1 and the second compressor 2 compress
Discharge from first row QI KOU 12, second exhaust port 22, then coolant is entered in oil eliminator 6 from the air inlet 61 of oil eliminator 6
Oil-gas Separation is carried out, coolant and oil are separated.The oil-out of the oily Jing oil eliminators 6 separated flows out oil eliminator 6,
And the first oil-in from the first compressor 1, the second oil-in of the second compressor 2 respectively enter the first compressor 1, second and press
In contracting machine 2；Flow out oil eliminator 6 for the gas outlet of the coolant Jing oil eliminators 6 separated, and it is logical to flow into the coolant of condenser 3
Continue cycling through in road.Cyclic process is referred to above-mentioned, repeats no more here.
By arranging above-mentioned oil eliminator 6, the coolant discharged from the first compressor 1 and the second compressor 2 can be entered
Row Oil-gas Separation, the oil separated continue to recycle in returning to the first compressor 1 and the second compressor 2, have saved resource
And cost, while can play a part of to clean coolant.
Alternatively, oil eliminator 6 can have two air inlets 61, in two air inlets 61 and the first compressor
1 first row QI KOU 12 is connected and another is connected with the second exhaust port 22 of the second compressor 2.Thus, in the first compressor 1
When different with the pressure at expulsion of the second compressor 2, by two air inlets 61 are arranged on oil eliminator 6, the first pressure can be made
The coolant that contracting machine 1 and the second compressor 2 are discharged more swimmingly is entered in oil eliminator 6.
Alternatively, oil eliminator 6 can have two oil-outs, in two oil-outs and the first compressor 1
First oil-in is connected and another is connected with the second oil-in of the second compressor 2.The oil that Jing oil eliminators 6 are separated
Two oil-outs of other Jing flow out oil eliminator 6, and the first oil-ins of oily Jing that one of oil-out flows out enter the first compressor 1
It is interior to recycle, the second oil-ins of oily Jing that another oil-out flows out are interior recycling into the second compressor 2.
Certainly, oil eliminator 6 can also only have an oil-out, and the oil-out is connected by the 3rd with the first oil-in
Pipe is connected, and the second oil-in is connected with the 3rd connecting tube by the 4th connecting tube.Thus, the oil for being flowed out by the oil-out, its
A middle part flows through the 3rd connecting tube and the first oil-ins of Jing are flowed in the first compressor 1 to recycle, another part oil Jing
Simultaneously the second oil-ins of Jing are flowed in the second compressor 2 to recycle 4th connecting tube.
In some embodiments of the present utility model, with reference to Fig. 1, condenser 3 includes condensing housing 31 and is limited to condensation
Refrigerant passage in housing 31, oil eliminator 6 are located in condensation housing 31 and are spaced apart with refrigerant passage, the first condensation port with
Second condensation port 32 is respectively formed at the two ends of refrigerant passage.Thus, it is possible to simplify the structure of handpiece Water Chilling Units 100, and can be with
For reducing the connecting pipe between oil eliminator 6 and condenser 3, it is easy to safeguard and keeps in repair.
Certainly, oil eliminator 6 can also be located at the outside of condenser 3.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
Example ", or the description of " some examples " etc. mean specific features with reference to the embodiment or example description, structure, material or spy
Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term
State.And, the specific features of description, structure, material or feature can be with
Combined in any one or more embodiments or example in an appropriate manner.Additionally, in the case of not conflicting, this area
Technical staff the feature of the different embodiments or example described in this specification and different embodiment or example can be entered
Row is combined and is combined.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to restriction of the present utility model, one of ordinary skill in the art is in scope of the present utility model
It is interior above-described embodiment to be changed, be changed, being replaced and modification.
Claims (10)
1. a kind of handpiece Water Chilling Units, it is characterised in that include：
First compressor and the second compressor, the first compressor have the first air entry and first row QI KOU, the second compression equipment
There are the second air entry and second exhaust port；
Condenser, the condenser is with the first condensation port and the second condensation port, the first row QI KOU and described second
Air vent is connected with the described first condensation port；
Vaporizer, the vaporizer is downward film evaporator, and the vaporizer has the first evaporation port and the second evaporation port,
First air entry and second air entry are connected with second evaporation port；
Orifice union, the orifice union are connected between the second condensation port and first evaporation port.
2. handpiece Water Chilling Units according to claim 1, it is characterised in that the orifice union includes for being connected in parallel with each other
One throttling arrangement and second throttling device, what the branch road and the second throttling device that the first throttle device is located was located are propped up
At least one of road is provided with on-off valve.
3. handpiece Water Chilling Units according to claim 2, it is characterised in that the first throttle device is restricting orifice, described
Second throttling device is electric expansion valve, and the on-off valve is located on the branch road that the second throttling device is located.
4. handpiece Water Chilling Units according to claim 2, it is characterised in that branch road that the first throttle device is located and described
Device for drying and filtering is serially connected with least one of branch road that second throttling device is located.
5. handpiece Water Chilling Units according to claim 1, it is characterised in that the vaporizer has two second evaporation ends
Mouthful, in two second evaporation ports is connected with first air entry and another and the second air entry phase
Even.
6. handpiece Water Chilling Units according to claim 1, it is characterised in that the vaporizer has second evaporation ends
Mouthful, second evaporation port is connected by the first connecting tube with first air entry, and second air entry passes through second
Connecting tube is connected with first connecting tube.
7. handpiece Water Chilling Units according to any one of claim 1-6, it is characterised in that also including oil eliminator, the oil
Separator has air inlet, oil-out and gas outlet, and first compressor has the first oil-in, the second compression equipment
There is the second oil-in, the first row QI KOU and the second exhaust port are connected with the air inlet, first oil-in
It is connected with the oil-out with second oil-in, the gas outlet is connected with the described first condensation port.
8. handpiece Water Chilling Units according to claim 7, it is characterised in that the condenser includes condensing housing and is limited to institute
The refrigerant passage in condensation housing is stated, the oil eliminator is located in the condensation housing and is spaced apart with the refrigerant passage,
The first condensation port and the second condensation port are respectively formed at the two ends of the refrigerant passage.
9. handpiece Water Chilling Units according to claim 7, it is characterised in that the oil eliminator has two oil-outs,
One in two oil-outs is connected with first oil-in and another is connected with second oil-in.
10. handpiece Water Chilling Units according to claim 7, it is characterised in that the oil eliminator has an oil-out,
The oil-out is connected by the 3rd connecting tube with first oil-in, and second oil-in passes through the 4th connecting tube and institute
State the connection of the 3rd connecting tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621047079.4U CN206073493U (en) | 2016-09-09 | 2016-09-09 | Handpiece Water Chilling Units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621047079.4U CN206073493U (en) | 2016-09-09 | 2016-09-09 | Handpiece Water Chilling Units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206073493U true CN206073493U (en) | 2017-04-05 |
Family
ID=58437532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621047079.4U Active CN206073493U (en) | 2016-09-09 | 2016-09-09 | Handpiece Water Chilling Units |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206073493U (en) |
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2016
- 2016-09-09 CN CN201621047079.4U patent/CN206073493U/en active Active
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