CN206959692U - A kind of cooling water feed system on demand - Google Patents
A kind of cooling water feed system on demand Download PDFInfo
- Publication number
- CN206959692U CN206959692U CN201720320466.9U CN201720320466U CN206959692U CN 206959692 U CN206959692 U CN 206959692U CN 201720320466 U CN201720320466 U CN 201720320466U CN 206959692 U CN206959692 U CN 206959692U
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- China
- Prior art keywords
- cooling water
- cooling
- water
- water pump
- demand
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- Expired - Fee Related
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- 239000000498 cooling water Substances 0.000 title claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000001816 cooling Methods 0.000 claims abstract description 43
- 238000005057 refrigeration Methods 0.000 claims abstract description 30
- 230000003020 moisturizing effect Effects 0.000 claims abstract description 8
- 241000196324 Embryophyta Species 0.000 description 26
- 238000006243 chemical reaction Methods 0.000 description 4
- 235000012364 Peperomia pellucida Nutrition 0.000 description 1
- 240000007711 Peperomia pellucida Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Abstract
A kind of cooling water feed system on demand, mainly by the instrument valve on disjunctor cooling tower, water pump, cooling water pipeline, frequency converter, PLC control system and cooling water pipeline, such as temperature transmitter, pressure sensor, motor-driven valve, check-valves composition, on its disjunctor cooling tower a draught fan group is formed by multiple blower fans, blower motor rotating speed uses Frequency Converter Control, the constant interval of cooling water flow according to needed for refrigeration plant, suitable low discharge water pump, middle flow water pump and big flow water pump is selected to form a water pump group, pump motor also uses Frequency Converter Control.The cooling water on demand not only in the case of cooling water flow change needed for refrigeration plant accomplish to supply on demand by feed system, reduce the number of units of cooling tower, save space, simplify pipeline arrangement, system is set more to save, while cooling tower moisturizing is more accurate, reliable.
Description
Art：
Cooling water system field is the utility model is related to, cooling water inflow is realized and supplied on demand according to needed for equipment, especially
Applied in the cooling water system of refrigeration plant.
Background technology：
At present, most of cooling water supply systems in refrigeration systems, its cooling tower use man-to-man pattern, i.e., and one
Platform cooling tower completes the cooling water supply to a refrigeration plant, and when refrigeration plant is run, corresponding cooling tower is opened, cold
But the blower motor of tower and water pump are power frequency operating, there is provided cooling water, when discharge reduction needed for refrigeration plant, or with one
Fixed flow supply, or shut down, the frequent start-stop in cooling water supply operation, it is impossible to accomplish to supply on demand.It is meanwhile corresponding more
When covering refrigeration plant, more jacket water feed systems need to be equipped with so that more cooling tower spaces are big and pipeline arrangement is more, by
It is power frequency work in blower fan of cooling tower and water pump, electric current is very big during start and stop, and frequent start-stop damages to the motor of blower fan and water pump
Evil.
The content of the invention：
It can not accomplish to supply on demand to solve existing cooling water system cooling water supply, cooling water is adopted with refrigeration plant
There is the phenomenon of frequent start-stop with one-to-one pattern, and cooling tower number of units causes space big more, pipeline arrangement is more to ask
Topic, the utility model provide a kind of cooling water feed system on demand, the cooling water on demand feed system not only in refrigeration plant institute
Need cooling water flow to accomplish to supply on demand in the case of changing, reduce the number of units of cooling tower, save space, simplify
Pipeline is arranged, system is more saved, while make it that cooling tower moisturizing is more accurate, reliable.
Technical scheme is used by the utility model solves its technical problem：A kind of cooling water feed system on demand, it is main
Will be by the instrument valve on disjunctor cooling tower, water pump, cooling water pipeline, frequency converter, PLC control system and cooling water pipeline, such as
Temperature transmitter, pressure sensor, motor-driven valve, check-valves etc. form；Wherein, one is formed by multiple blower fans on disjunctor cooling tower
Individual draught fan group, blower motor rotating speed use Frequency Converter Control, the constant interval of cooling water flow according to needed for refrigeration plant, selection
Suitable low discharge water pump, middle flow water pump and big flow water pump form a water pump group, and pump motor also uses frequency converter control
System；Cooling tower is a disjunctor cooling tower, and its water charging system is controlled using pressure sensor and magnetic valve by PLC control system
Moisturizing；Motor-driven valve is installed on cooling water inlet pipe, temperature transmitter and pressure sensing are installed on inlet pipeline and outlet pipeline
Device.The workflow of cooling water feed system on demand is：Cooling water after disjunctor cooling tower cools, passes through variable frequency pump
Group, at this moment, when cooling water flow is smaller needed for refrigeration plant, such as only refrigeration plant opens operation, corresponding to it
Motor-driven valve on water inlet pipe is opened, and the motor-driven valve on the water inlet pipe of remaining refrigeration plant is closed, then need to only be opened in water pump group small
The water pump of flow, by Frequency Converter Control pump motor rotating speed, cooling water flow is adjusted, makes cooling water system constant pressure surely in setting
Pressure value, realize constant pressure frequency conversion convey, enter and heat exchange carried out in refrigeration plant, out after cooling water temperature rise, then
Cooling down is carried out into disjunctor cooling tower, for disjunctor blower fan of cooling tower, because required flow is smaller, passes through frequency converter frequency conversion
The motor speed of blower fan is controlled, makes all motor speeds with a slow rotation, to meet the cooling to high-temperature cooling water, cooling
Entered again by variable frequency pump in refrigeration plant afterwards, so as to form a cooling water recirculation system, i.e. cooling water supplies on demand
To system.
Similarly, when current quantitative change needed for refrigeration plant is big, the number of units that operation is opened such as refrigeration plant increases, at this moment, according to
The size cases of cooling water flow, number of units and VFC pump motor rotating speed, regulation are opened by electric control system controls water pump
Cooling water flow, make cooling water system constant-pressure stable in the pressure value of setting.Flow water pump during water pump can be opened, or low discharge
Water pump adds middle flow water pump, or middle flow water pump enlargement discharge water pump, or the combination such as low discharge water pump enlargement discharge water pump, to expire
The size of water-carrying capacity needed for sufficient refrigeration plant；When flow reaches maximum needed for refrigeration plant, as refrigeration plant is all turned on transporting
OK, then it is small, in, the water pump of big flow open work, cooling water flow supplies on demand, accomplish constant pressure frequency conversion convey.Meanwhile even
The blower fan of body cooling tower is also corresponding to increase blower motor rotating speed according to uninterrupted by VFC, meets cooling water
Cooling demand.
Cooling tower uses disjunctor cooling tower, provides cooling water to all refrigeration plants, its is compact-sized, space
Small, water receiving pipeline concentrates redisperse succinct to each cooling water point of use, pipeline arrangement.
For the water charging system of disjunctor cooling tower, it is made up of pressure sensor, magnetic valve and PLC control system, magnetic valve
On water pipe, pressure sensor detects the pressure of cooling tower water water in basin, delivers a signal to PLC control system, such as
Detecting pressure value and be equal to setting supplementing water pressure value, then the magnetic valve on PLC control system control filling pipe is opened, and carries out moisturizing,
When detecting pressure value and being equal to the pressure value for setting stopping moisturizing, PLC control system control closed electromagnetic valve, stop moisturizing.
The beneficial effect that the utility model is brought is：Feed system is not only cooling down the cooling water needed for refrigeration plant on demand
Water-carrying capacity accomplishes to supply on demand in the case of changing, and reduces the number of units of cooling tower, saves space, simplifies pipeline cloth
Put, system is more saved, while cooling tower moisturizing is more accurate, reliable.
Brief description of the drawings：
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the flow chart of cooling water feed system on demand.
In figure, 1. disjunctor cooling towers, 2. disjunctor blower fan of cooling tower, 3. water pumps, 4. pressure sensors, 5. temperature transmitters,
6. motor-driven valve, 7. refrigeration plants.
Embodiment：
In Fig. 1, the cooling water after disjunctor cooling tower (1) cooling down, according to cooling water needed for refrigeration plant (7)
Uninterrupted, VFC water pump (3), when required cooling water inflow is small, such as only a refrigeration plant (7) opens operation, its
Motor-driven valve (6) on corresponding water inlet pipe is opened, and the motor-driven valve (6) on the water inlet pipe of remaining refrigeration plant is closed, then is only needed
The water pump (3) of low discharge is opened, by Frequency Converter Control water pump (3) motor speed, cooling water flow is adjusted, makes cooling water system
Constant pressure surely in the pressure value of setting, realizes that constant pressure frequency conversion conveys, and enters and heat exchange is carried out in refrigeration plant (7), out rear cold
But coolant-temperature gage raises, and enters back into disjunctor cooling tower (1) and carries out cooling down, for disjunctor blower fan of cooling tower (2), due to required stream
Amount is smaller, by the motor speed of frequency converter VFC blower fan, makes all motor speeds with a slow rotation, to meet pair
The cooling of high-temperature cooling water, entered again by variable frequency pump (3) in refrigeration plant (7) after cooling, it is cold so as to form one
But water circulation system, i.e. cooling water feed system on demand.Temperature transmitter (5) and pressure sensor (4) on pipeline are examined respectively
Survey the temperature value and pressure value of cooling water in inlet pipeline and outlet pipeline.
Claims (3)
1. a kind of cooling water feed system on demand, mainly controlled by disjunctor cooling tower, water pump, cooling water pipeline, frequency converter, PLC
Instrument valve composition in system and cooling water pipeline, instrument valve is by temperature transmitter, pressure sensor, motor-driven valve, non-return
Valve group into, it is characterized in that：A draught fan group is formed by multiple blower fans on disjunctor cooling tower, blower motor rotating speed uses frequency converter
Control, the constant interval of cooling water flow according to needed for refrigeration plant, select suitable low discharge water pump, middle flow water pump and big
Flow water pump forms a water pump group, and pump motor also uses Frequency Converter Control.
2. a kind of cooling water according to claim 1 feed system on demand, it is characterized in that：Cooling tower is that a disjunctor cools down
Tower, its water charging system control moisturizing using pressure sensor and magnetic valve by PLC control system.
3. a kind of cooling water according to claim 1 feed system on demand, it is characterized in that：Installed on cooling water inlet pipe
Temperature transmitter and pressure sensor are installed on motor-driven valve, inlet pipeline and outlet pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720320466.9U CN206959692U (en) | 2017-03-29 | 2017-03-29 | A kind of cooling water feed system on demand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720320466.9U CN206959692U (en) | 2017-03-29 | 2017-03-29 | A kind of cooling water feed system on demand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206959692U true CN206959692U (en) | 2018-02-02 |
Family
ID=61372324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720320466.9U Expired - Fee Related CN206959692U (en) | 2017-03-29 | 2017-03-29 | A kind of cooling water feed system on demand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206959692U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562096A (en) * | 2018-06-26 | 2018-09-21 | 山东赛马力动力科技有限公司 | A kind of automatic regulating system of multimachine monoblock type coolant liquid pipeline |
| CN114877582A (en) * | 2022-05-26 | 2022-08-09 | 杰瑞石油天然气工程有限公司 | Temperature control method, device and system based on air cooling |
-
2017
- 2017-03-29 CN CN201720320466.9U patent/CN206959692U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562096A (en) * | 2018-06-26 | 2018-09-21 | 山东赛马力动力科技有限公司 | A kind of automatic regulating system of multimachine monoblock type coolant liquid pipeline |
| CN114877582A (en) * | 2022-05-26 | 2022-08-09 | 杰瑞石油天然气工程有限公司 | Temperature control method, device and system based on air cooling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180202 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |