CN206094669U - Control system of cold water machine set - Google Patents
Control system of cold water machine set Download PDFInfo
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- CN206094669U CN206094669U CN201620985311.2U CN201620985311U CN206094669U CN 206094669 U CN206094669 U CN 206094669U CN 201620985311 U CN201620985311 U CN 201620985311U CN 206094669 U CN206094669 U CN 206094669U
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- water
- chilling units
- valve
- handpiece
- water chilling
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Abstract
The utility model provides a control system of cold water machine set belongs to the air conditioning technology field, has solved the unstable technical problem of leaving water temperature of current air conditioning system's cooling water set existence. This control system of cold water machine set includes the cooling water set, and with the refrigerated water delivery pipe of the delivery port connection of cooling water set, with the refrigerated water wet return of the water inlet connection of cooling water set, the refrigerated water supplies water piping connection water supply loop, the refrigerated water returns water piping connection return water loop, the refrigerated water delivery pipe with be connected with quick wet return between the refrigerated water wet return. The utility model discloses can be used to in data center's the computer lab.
Description
Technical field
The utility model is related to air-conditioning technical field, in particular to a kind of control system of handpiece Water Chilling Units.
Background technology
As informationalized importance is increasingly highlighted, and cloud computing and the fast development of information-based science and technology, data center
Have become the economic infrastructure as traffic, the energy.Requirement of the user to Constructing data center also more and more higher, seeks
The guarantee of reliable data center physical infrastructure, it has also become the new problem in the middle of industry.
The air-conditioning system of data center is the important leverage of data center's safe operation, and handpiece Water Chilling Units are used as air-conditioning system
Most crucial part, the stability of its leaving water temperature is most important.
At present, existing air-conditioning system is mainly constituted by handpiece Water Chilling Units, for water loops and backwater loop.Handpiece Water Chilling Units are discharged
Chilled water enter and supply water loops, flow through after the air-conditioning of data center chilled water temperature and raise, then Jing backwater loop returns to cold
Water dispenser group is cooled down again, forms the freezing water circulation of air-conditioning system.
Traditional control mode, in normal operation handpiece Water Chilling Units function can be substantially met.But, at the beginning of handpiece Water Chilling Units
Operation loads the initial stage, and the temperature of the chilled water that handpiece Water Chilling Units are discharged is often higher than setting value, causes tail end air conditioner system unstable
It is fixed, need after handpiece Water Chilling Units stable operation, leaving water temperature can just be reduced to normal temperature, and be held essentially constant.Therefore,
There is the unstable technical problem of leaving water temperature in the handpiece Water Chilling Units of existing air-conditioning system.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of control system of handpiece Water Chilling Units, be can solve the problem that existing
Air-conditioning system the unstable technical problem of leaving water temperature that exists of handpiece Water Chilling Units.
The utility model embodiment provides a kind of control system of handpiece Water Chilling Units, including the water outlet with the handpiece Water Chilling Units
The chilled water feed pipe of mouth connection and the chilled water return pipe being connected with the water inlet of the handpiece Water Chilling Units；
The chilled water feed pipe connection supplies water loops, the chilled water return pipe to connect back to water loops；The chilled water
Quick return pipe is connected between feed pipe and the chilled water return pipe.
The utility model embodiment provides the first possible embodiment of the control system of the handpiece Water Chilling Units, its
In, it is provided with the first valve on the quick return pipe.
The utility model embodiment provides second possible embodiment of the control system of the handpiece Water Chilling Units, its
In, it is provided with the second valve on the chilled water feed pipe；
The junction of the quick return pipe and the chilled water feed pipe, positioned at second valve and the cooling-water machine
Between the delivery port of group.
The utility model embodiment provides the third possible embodiment of the control system of the handpiece Water Chilling Units, its
In, first valve and second valve are electric control valve.
The utility model embodiment provides the 4th kind of possible embodiment of the control system of the handpiece Water Chilling Units, its
In, it is provided with chilled water pump on the chilled water return pipe.
The utility model embodiment provides the 5th kind of possible embodiment of the control system of the handpiece Water Chilling Units, its
In, the water outlet of the handpiece Water Chilling Units is provided with thermometer.
The utility model embodiment provides the 6th kind of possible embodiment of the control system of the handpiece Water Chilling Units, its
In, the system also includes valve positioner；
The valve positioner controls second valve and described according to the water temperature of the water outlet of the handpiece Water Chilling Units
The open degree of the first valve, adjusts the flow of the quick return pipe.
The utility model embodiment provides the 7th kind of possible embodiment of the control system of the handpiece Water Chilling Units, its
In, when the water temperature of the water outlet of the handpiece Water Chilling Units is higher than the first preset value, the valve positioner is by described quick time
The Flow-rate adjustment of water pipe is maximum；
When the water temperature of the water outlet of the handpiece Water Chilling Units is less than the second preset value, the valve positioner will be described fast
The Flow-rate adjustment of fast return pipe is 0；
Wherein, first preset value is higher than second preset value.
The utility model embodiment provides the 8th kind of possible embodiment of the control system of the handpiece Water Chilling Units, its
In, it is provided with flowmeter on the chilled water return pipe.
The utility model embodiment provides the 9th kind of possible embodiment of the control system of the handpiece Water Chilling Units, its
In, the valve positioner controls the unlatching of second valve and first valve always according to the parameter of the flowmeter
Degree, so as to ensure the flow of the handpiece Water Chilling Units.
The utility model embodiment brings following beneficial effect：The control of the handpiece Water Chilling Units that the utility model embodiment is provided
In system processed, by handpiece Water Chilling Units, chilled water feed pipe, chilled water return pipe and it is connected to chilled water feed pipe and chilled water and returns
The parts such as the quick return pipe between water pipe are constituted.The chilled water feed pipe of chilled water that the delivery port of handpiece Water Chilling Units is discharged is flowed into
For water loops, the chilled water return pipe of chilled water that backwater loop is flowed back to flows into the water inlet of handpiece Water Chilling Units.
And in the control system of the handpiece Water Chilling Units that the utility model embodiment is provided, by arranging quick return pipe, energy
Enough form the short closed circuit being made up of handpiece Water Chilling Units, chilled water feed pipe, chilled water return pipe and quick return pipe.Work as cold water
When the leaving water temperature of unit is too high, quick return pipe can be disconnected for water loops and open, the chilled water for discharging handpiece Water Chilling Units
Chilled water return pipe is flowed back to by quick return pipe, handpiece Water Chilling Units are returned to.Namely utilize the short closed circuit, make temperature compared with
High chilled water can quickly flow back to handpiece Water Chilling Units, so as to persistently be cooled down to it, the temperature of chilled water is reduced rapidly to
Normal temperature.Afterwards, then open and supply water loops, for the chilled water that air-conditioning system provides temperature stabilization.Therefore, it is new using this practicality
The control system of the handpiece Water Chilling Units that type embodiment is provided, can be reduced rapidly to normal temperature, so as to solve by chilled water temperature
The unstable technical problem of leaving water temperature that the handpiece Water Chilling Units of existing air-conditioning system are present.
Other feature and advantage of the present utility model will illustrate in the following description, also, partly from specification
In become apparent, or by implement the utility model and understand.The purpose of this utility model and other advantages are in explanation
Specifically noted structure is realizing and obtain in book, claims and accompanying drawing.
To enable above-mentioned purpose of the present utility model, feature and advantage to become apparent, preferred embodiment cited below particularly, and
Coordinate appended accompanying drawing, be described in detail below.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of the utility model embodiment, below will be to use needed for embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 shows the schematic diagram of the control system of the handpiece Water Chilling Units that the utility model embodiment is provided.
Specific embodiment
It is new below in conjunction with this practicality to make purpose, technical scheme and the advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, is clearly and completely described, it is clear that described to the technical scheme in the utility model embodiment
Embodiment be only a part of embodiment of the utility model, rather than the embodiment of whole.Therefore, below to carrying in the accompanying drawings
For the detailed description of embodiment of the present utility model be not intended to limit claimed scope of the present utility model, but only
Only represent selected embodiment of the present utility model.Based on embodiment of the present utility model, those skilled in the art are not making
The every other embodiment obtained on the premise of creative work, belongs to the scope of the utility model protection.
At present, there is the unstable technical problem of leaving water temperature in the handpiece Water Chilling Units of air-conditioning system.Based on this, the utility model
A kind of control system of handpiece Water Chilling Units that embodiment is provided, with what the handpiece Water Chilling Units for solving existing air-conditioning system were present water temperature is gone out
The unstable technical problem of degree.
As shown in figure 1, the utility model embodiment provides a kind of control system of handpiece Water Chilling Units 4, including with handpiece Water Chilling Units 4
Delivery port connection chilled water feed pipe 8 and the chilled water return pipe 2 that is connected with the water inlet of handpiece Water Chilling Units 4.Cooling-water machine
The chilled water feed pipe 8 of chilled water that the delivery port of group 4 is discharged is flowed into and supplies water loops, and the chilled water that backwater loop is flowed back to is chilled
Water return pipe 2 flows back to the water inlet of handpiece Water Chilling Units 4.
Additionally, quick return pipe 6 is also associated between chilled water feed pipe 8 and chilled water return pipe 2, it is quick by arranging
Return pipe 6, can be formed by handpiece Water Chilling Units 4, chilled water feed pipe 8, chilled water return pipe 2 and quick return pipe 6 constitute it is short
Closed circuit.
When the leaving water temperature of handpiece Water Chilling Units 4 is too high, quick return pipe 6 can be disconnected for water loops and be opened, make cold water
The chilled water that unit 4 is discharged flows back to chilled water return pipe 2 by quick return pipe 6, returns to handpiece Water Chilling Units 4.Namely utilize
The short closed circuit, enables the higher chilled water of temperature quickly to flow back to handpiece Water Chilling Units 4, so as to persistently be cooled down to it, will
The temperature of chilled water is reduced rapidly to normal temperature.Afterwards, then open and supply water loops, for air-conditioning system the cold of temperature stabilization is provided
Freeze water.Therefore, the control system of the handpiece Water Chilling Units 4 for being provided using the utility model embodiment, can be by chilled water leaving water temperature
Normal temperature is reduced rapidly to, so as to the leaving water temperature that the handpiece Water Chilling Units 4 for solving existing air-conditioning system are present is unstable
Technical problem.
Specifically, the first valve 5 is provided with the quick return pipe 6 in the present embodiment, for controlling quick return pipe 6
Flow.The second valve 7 is provided with chilled water feed pipe 8, for controlling handpiece Water Chilling Units 4 flow of the end for water loops is flowed to.
And first valve 5 and the chain control of the second valve 7, it is ensured that quick return pipe flow with flow to flow sum of the end for water loops
Equal to handpiece Water Chilling Units water inlet backwater amount.To ensure that the second valve 7 realizes effective control action, quick return pipe 6 and freezing
The junction of water feed pipe 8, should be located between the second valve 7 and the delivery port of handpiece Water Chilling Units 4.
In the present embodiment, chilled water pump 1 and flowmeter 3 are additionally provided with chilled water return pipe 2.Chilled water pump 1 is used for will
Chilled water in backwater loop flows back to handpiece Water Chilling Units 4 by chilled water return pipe 2.Flowmeter 3 is used for measurement chilled water in real time and returns
The flow of water pipe 2, it is possible to which the aperture of the second valve 7 and the first valve 5 is adjusted according to the flow of chilled water return pipe 2, it is to avoid
Cause the transfer of water pump operation operating mode due to pipe resistance characteristic changing so as to cause to flow through the flow of cold less than cold
Minimum is required.When the leaving water temperature of handpiece Water Chilling Units 4 is too high, the second valve 7 is closed, makes handpiece Water Chilling Units 4 and disconnect for water loops,
And also can therefore disconnect between handpiece Water Chilling Units 4 and backwater loop.Meanwhile, the first valve 5 is opened, make what handpiece Water Chilling Units 4 flowed out
Chilled water sequentially passes through quick return pipe 6, chilled water return pipe 2, returns handpiece Water Chilling Units 4.Short closed circuit is namely utilized,
The higher chilled water of temperature is set quickly to flow back to handpiece Water Chilling Units 4, it is so as to persistently be cooled down to it, the temperature of chilled water is fast
Prompt drop as little as normal temperature.
When the leaving water temperature as little as normal temperature of handpiece Water Chilling Units 4, the first valve 5 is closed, cut off short closed circuit.Simultaneously
The second valve 7 is opened, handpiece Water Chilling Units 4 is made and is connected for water loops, backwater loop, for the freezing that air-conditioning system provides temperature stabilization
Water.
It is further also to include Valve controlling in the control system of the handpiece Water Chilling Units 4 that the utility model embodiment is provided
Device (not shown).Valve positioner according to the water temperature of the water outlet of handpiece Water Chilling Units 4, can adjust the stream of quick return pipe 6
Amount.
Specifically, the water outlet in handpiece Water Chilling Units 4 is provided with the thermometer (not shown) with transporting function, valve
Controller according to parameter regulation first valve 5 of the return of the thermometer and the open degree of the second valve 7, and then can adjust fast
The flow of fast return pipe 6.Used as a preferred version, the first valve 5 and the second valve 7 are electric control valve, in order to logical
Cross the regulation that electric signal realizes flow.
In the present embodiment, one or more preset values can be set in valve positioner, as adjust the first valve 5,
The foundation of the aperture of the second valve 7.For example, under nominal situation, the standard leaving water temperature of handpiece Water Chilling Units 4 should be 7 DEG C, return water temperature
It should be 12 DEG C.Then can arrange the first preset value be higher than 2 DEG C of standard leaving water temperature, that is, when leaving water temperature 9 DEG C with
When upper, then belonged to the too high situation of leaving water temperature, the first valve 5 should be opened and the second valve 7 is closed；Second preset value is set
It is, higher than 0.5 DEG C of standard leaving water temperature, that is, when leaving water temperature is below 7.5 DEG C, to belong to normal leaving water temperature, should closes
Close the first valve 5 and open the second valve 7.Further, it is also possible to the preset value of transition the 3rd is set, as the aperture of the first valve 5
Adjustment transition temperature, the preset value of transition the 3rd could be arranged to higher than 1 DEG C of standard leaving water temperature, that is, 8 DEG C.
At the just operation of handpiece Water Chilling Units 4 or loading initial stage, the leaving water temperature of handpiece Water Chilling Units 4 may be too high.When handpiece Water Chilling Units 4
When the leaving water temperature parameter that the thermometer of water outlet is returned is higher than 9 DEG C, valve positioner fully opens on the first valve 5, together
When the second valve 7 is completely closed, that is, by the Flow-rate adjustment of quick return pipe 6 be maximum.Now, handpiece Water Chilling Units 4 with
Disconnect for water loops, backwater loop, and make the chilled water that handpiece Water Chilling Units 4 flow out sequentially pass through quick return pipe 6, chilled water backwater
Pipe 2, returns handpiece Water Chilling Units 4.Using short closed circuit, the higher chilled water of temperature is set quickly to flow back to handpiece Water Chilling Units 4, from
And it is persistently cooled down, the quick temperature for reducing chilled water.
With the continuous reduction of chilled water temperature, when the temperature of chilled water is down to 8 DEG C, valve positioner is by the first valve
5 progressively close off, to be gradually reduced the flow of quick return pipe 6.Meanwhile, valve positioner is gradually opened on the second valve 7, with by
The flow of the chilled water of cumulative big confession water loops.
During the open degree of the first valve 5 and the second valve 7 is gradually adjusted, valve positioner reference should also be made to cold
The parameter of the flowmeter 3 frozen on water return pipe 2, controls the open degree of the second valve 7 and the first valve 5, so as to ensure cooling-water machine
The flow of group 4, it is to avoid the transfer of the operating condition of chilled water pump 1 caused due to pipe resistance characteristic changing, and then cause cold
The flow of water dispenser group 4 causes the situations such as the shutdown of handpiece Water Chilling Units 4 less than its minimum requirement.Because the backwater amount of handpiece Water Chilling Units 4 and confession
The water yield is equal, so the registration of flowmeter 3 is equal to the first valve 5, the flow sum of the second valve 7, therefore the first valve 5
Keep stable with the aperture summation of the second valve 7.
With the continuous reduction of chilled water temperature, when the temperature of chilled water is down to 7.5 DEG C, you can think handpiece Water Chilling Units 4
Normal leaving water temperature has been reached, and valve positioner completely closes on the first valve 5, while the second valve 7 is fully opened, makes
Handpiece Water Chilling Units 4 are normally freezed water supply.
In the running of handpiece Water Chilling Units 4, continue the leaving water temperature for monitoring handpiece Water Chilling Units 4.When leaving water temperature is higher than 8 DEG C
When, automatically switch to electric control valve operator scheme, i.e., adjust opening for the first valve 5 and the second valve 7 using valve positioner
Degree, using short closed circuit the temperature of chilled water is quickly reduced, and the air-conditioning that can make data center keeps stable running status.
In the control system of the handpiece Water Chilling Units 4 that the utility model embodiment is provided, by valve positioner to the first valve 5
With the control action of the second valve 7, short closed circuit can be utilized quickly to reduce the temperature of chilled water, make going out for handpiece Water Chilling Units 4
Coolant-temperature gage is reduced to normal temperature, so as to the leaving water temperature that the handpiece Water Chilling Units 4 for solving existing air-conditioning system are present is unstable
Technical problem.
Additionally, the implementation of the utility model embodiment is simple, and it is with low cost, it is easy to maintaining, only need to be original
Air-conditioning system in set up a set of quick return pipe and two valves, it becomes possible to the full extent keep handpiece Water Chilling Units it is stable
Leaving water temperature.Two valves can select electric control valve or the valve of other common types, therefore the utility model embodiment
It is applied widely, there is no particular/special requirement to use environment.
It should be noted that in the description of the utility model embodiment, term " on ", D score, " interior ", " outward " etc. indicate
Orientation or position relationship be, based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model and letter
Change description, rather than indicate or imply indication device or element must have specific orientation, with specific azimuth configuration and
Operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second ", " the 3rd " are only used for description
Purpose, and it is not intended that indicating or implying relative importance.
In addition, in the description of the utility model embodiment, unless otherwise clearly defined and limited, term " installation ",
" connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or integratedly connect
Connect.For the ordinary skill in the art, can understand that above-mentioned term is concrete in the utility model with concrete condition
Implication.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any those familiar with the art can readily occur in change in the technical scope that the utility model is disclosed
Or replace, all should cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be described with power
The protection domain that profit is required is defined.
Claims (10)
1. a kind of control system of handpiece Water Chilling Units, it is characterised in that include the freezing being connected with the delivery port of the handpiece Water Chilling Units
Water feed pipe and the chilled water return pipe being connected with the water inlet of the handpiece Water Chilling Units；
The chilled water feed pipe connection supplies water loops, the chilled water return pipe to connect back to water loops；
Quick return pipe is connected between the chilled water feed pipe and the chilled water return pipe.
2. the control system of handpiece Water Chilling Units according to claim 1, it is characterised in that be provided with the quick return pipe
First valve.
3. the control system of handpiece Water Chilling Units according to claim 2, it is characterised in that arrange on the chilled water feed pipe
There is the second valve；
The junction of the quick return pipe and the chilled water feed pipe, positioned at second valve and the handpiece Water Chilling Units
Between delivery port.
4. the control system of handpiece Water Chilling Units according to claim 3, it is characterised in that first valve and described second
Valve is electric control valve.
5. the control system of handpiece Water Chilling Units according to claim 1, it is characterised in that arrange on the chilled water return pipe
There is chilled water pump.
6. the control system of handpiece Water Chilling Units according to claim 3, it is characterised in that the water outlet of the handpiece Water Chilling Units
It is provided with thermometer.
7. the control system of handpiece Water Chilling Units according to claim 6, it is characterised in that also including valve positioner；
The valve positioner controls second valve and first valve according to the water temperature in the handpiece Water Chilling Units exit
Open degree, so as to adjust the flow of the quick return pipe.
8. the control system of handpiece Water Chilling Units according to claim 7, it is characterised in that when the delivery port of the handpiece Water Chilling Units
When the water temperature at place is higher than the first preset value, the Flow-rate adjustment of the quick return pipe is maximum by the valve positioner；
When the water temperature of the water outlet of the handpiece Water Chilling Units is less than the second preset value, the valve positioner is by described quick time
The Flow-rate adjustment of water pipe is 0；
Wherein, first preset value is higher than second preset value.
9. the control system of handpiece Water Chilling Units according to claim 8, it is characterised in that arrange on the chilled water return pipe
There is flowmeter.
10. the control system of handpiece Water Chilling Units according to claim 9, it is characterised in that the valve positioner always according to
The parameter of the flowmeter, controls the open degree of second valve and first valve, so as to ensure the handpiece Water Chilling Units
Flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620985311.2U CN206094669U (en) | 2016-08-29 | 2016-08-29 | Control system of cold water machine set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620985311.2U CN206094669U (en) | 2016-08-29 | 2016-08-29 | Control system of cold water machine set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206094669U true CN206094669U (en) | 2017-04-12 |
Family
ID=58474743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620985311.2U Active CN206094669U (en) | 2016-08-29 | 2016-08-29 | Control system of cold water machine set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206094669U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111426106A (en) * | 2020-05-11 | 2020-07-17 | 珠海格力电器股份有限公司 | Cold water air conditioner, cooling water unit thereof and cooling water control method |
-
2016
- 2016-08-29 CN CN201620985311.2U patent/CN206094669U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111426106A (en) * | 2020-05-11 | 2020-07-17 | 珠海格力电器股份有限公司 | Cold water air conditioner, cooling water unit thereof and cooling water control method |
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Address after: 1201 room 1, building 19, No. 300457 West Ring Road, Tianjin Binhai New Area Development Zone Patentee after: Violet Huashan science and Technology Service Co., Ltd. Address before: 1201 room 1, building 19, No. 300457 West Ring Road, Tianjin Development Zone, Binhai New Area, Tianjin Patentee before: TIANJIN HP DATA CENTER DESIGN ENGINEERING CO., LTD. |