CN204574918U - Cooling tower vacuum water-feeding system - Google Patents
Cooling tower vacuum water-feeding system Download PDFInfo
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- CN204574918U CN204574918U CN201520206543.9U CN201520206543U CN204574918U CN 204574918 U CN204574918 U CN 204574918U CN 201520206543 U CN201520206543 U CN 201520206543U CN 204574918 U CN204574918 U CN 204574918U
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Abstract
The utility model relates to a kind of cooling tower vacuum water-feeding system, comprise water feed apparatus, heat-exchanger rig, supervising device, automatic separating apparatus, vacuum pump set and automatic control system, water inlet pipe is connected with heat-exchanging component, one end of liquid sealing pipe is connected with heat-exchanging component, and the other end is inserted into the bottom of fluid-tight tank; Monitoring tank is connected with heat-exchanging component, and monitoring tank is provided with liquid level sensor and vacuum transducer, and monitoring tank is connected on separator, between monitoring tank and separator, be provided with the first automatic valve; The below of separator is provided with holding vessel, and the upper end of holding vessel is provided with filter, and vacuum pump set is connected with separator, and vacuum pump set is also electrically connected with automatic control system.This system is by creation vacuum environment, atmospheric pressure is utilized automatically to be pressed in the heat-exchanging component of cooling tower by water, the energy consumption of system is only vacuum state recirculated water being risen to heat-exchanger rig water inlet and the system of maintenance, and energy consumption declines greatly, also improves utilization rate of equipment and installations simultaneously.
Description
Technical field
The present invention relates to a kind of cooling tower vacuum water-feeding system, specifically a kind of upper water extraction for circulating water cooling tower supplies the vacuum water-feeding system of auxiliary power.
Background technology
According to industrial circulating water Cooling Design specification (GBT_50102-2003) and GBT_50392-2006_ mechanical-draft cooling tower production engineering specifications, the upper water of current domestic traditional cooling tower is utilize water pump lift to promote water to heat transmission equipment substantially.Pump head due to this kind of water feeding mode depends on that pipeline on-way resistance, equipment resistance, Water distributor for cooling tower pressure and water-locator are to factors such as the water collector discrepancy in elevation, problems such as therefore there is narrow application range, complex structural designs, water pump can only assist water on a circulating water cooling tower and efficiency is low, power consumption is high.Therefore, a kind of upper water conservancy project skill newly of exigence solves above-mentioned technical problem.
Summary of the invention
The present invention is just for the technical problem existed in prior art, a kind of cooling tower vacuum water-feeding system is provided, the design of this overall system architecture is ingenious, by creating a vacuum environment for heat-exchanger rig, atmospheric pressure is utilized automatically to be pressed in the heat-exchanging component of cooling tower by water, the energy consumption of a complete set of system only needs the vacuum state for recirculated water being risen to heat-exchanger rig water inlet and the system of maintenance, has greatly saved the energy consumption of system; And the monitoring module carried carries out real time on-line monitoring to the vacuum environment of system, once reach the vacuum warning point of systemic presupposition, just automatically start vacuum pump set and carry out vacuumizing process.
To achieve these goals, the technical solution used in the present invention is, a kind of cooling tower vacuum water-feeding system, comprise the water feed apparatus, heat-exchanger rig, supervising device, automatic separating apparatus and the vacuum pump set that are connected successively by pipeline, and adopt an automatic control system automatically to control described water feed apparatus, heat-exchanger rig, supervising device, automatic separating apparatus and vacuum pump set; Described water feed apparatus comprises water inlet pipe and automatic water inlet valve, described heat-exchanger rig comprises the heat-exchanging component of cooling tower, liquid sealing pipe and fluid-tight tank, described water inlet pipe is connected with described heat-exchanging component, described automatic water inlet valve is located on described water inlet pipe, one end of described liquid sealing pipe is connected with described heat-exchanging component, and the other end is inserted into the bottom of described fluid-tight tank; Described supervising device comprises a monitoring tank, and described monitoring tank is connected with described heat-exchanging component, and described monitoring tank is provided with liquid level sensor and vacuum transducer; Described monitoring tank reduces with described heat-exchanging component volume the special container customized by a certain percentage, feeds back the operating mode of described heat-exchanging component by the vacuum and liquid level signal monitoring tank; Described automatic separating apparatus comprises separator and holding vessel, described monitoring tank is connected with separator, and the first automatic valve is provided with between described monitoring tank and separator, described separator is connected with holding vessel, and between described separator and holding vessel, be provided with the second automatic valve and the 3rd automatic valve, be provided with the 4th automatic valve at the liquid outlet place of described holding vessel, holding vessel is also provided with vacuum breakdown device of vacuum; Described vacuum pump set is connected with described separator.
Improve as to one of the present utility model, the autocontrol valve that described vacuum pump set comprises vacuum buffer tank and is connected successively with vacuum buffer tank, vacuum pressure relief valve, vacuum meter, vavuum pump, water tank, gas-liquid separator and water pump, vacuum buffer tank is provided with vacuum transducer, the water supplement port of described vavuum pump is connected with water tank by pipeline, and on pipeline, be provided with the second filter and valve switch, water tank is provided with liquid level sensor, water inlet and delivery port, gas-liquid separator is provided with evacuate air pipe, water inlet and delivery port, and be provided with valve switch at water outlet, the 3rd filter is provided with at pump intake place.
Improve as to one of the present utility model, described vacuum pump set is provided with two cover autocontrol valves, vacuum pressure relief valve, vacuum meter and vavuum pump, and wherein a set of is for subsequent use.
Improve as to one of the present utility model, the vacuum breakdown device of vacuum that described holding vessel is arranged is made up of the 5th automatic valve and the first filter.
Improve as to one of the present utility model, described heat-exchanging component is set to sandwich construction, and described liquid sealing pipe is all connected with every one deck of described heat-exchanging component.
Improve as to one of the present utility model, the vacuum in described heat-exchanging component can carry out Automatic adjusument according to the cooling water inflow of circulating water cooling tower and coolant water temperature.
Improve as to one of the present utility model, described automatic control system adopts Redundant Control, comprise a set of programming software+soft Redundancy Software bag, A and B two overlap PLC+I/O module, three communication links and several slave stations, A and B control system independent operating, grasps the I/O control to slave station by main system.Based on A system during system boot; B system is as subsequent use; when any one assembly of main system A is made mistakes; control task can automatically switch in the middle of back-up system B and perform; now then based on B system; A system as subsequent use, thus decreases because the shutdown that causes of the fault of components and parts, substantially increases the security of system.
Improve as to one of the present utility model, described vavuum pump adopts water-ring vacuum pump.
Relative to prior art, advantage of the present utility model is as follows, 1) overall construction design is ingenious, adopts vacuum pump set to replace traditional water pump and carries out upper water to circulating water cooling tower, not only enormously simplify the frame for movement of whole water-feeding system, also ensure that the coherent continuation of water simultaneously; 2) this system is simple and reliable for structure, and the energy consumption of whole system just for the vacuum state of the water inlet and the system of maintenance that recirculated water are risen to heat-exchanger rig, greatly reduces the energy consumption of system, and make and management maintenance cost low; 3) this system can be applied to the upper water conservancy project work of multiple stage cooling tower, substantially increases the utilization rate of equipment and installations of cooling tower water-feeding system, also saves production cost simultaneously; 4) vacuum pump set in this system can automatically quit work under keeping the vacuum environment of whole system to meet the requirements of situation, and pass through the vacuum environment of supervising device Real-Time Monitoring whole system, once it reaches the vacuum warning point of systemic presupposition, just automatically start vacuum pump set and process is vacuumized to whole system.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The structural representation of the vacuum pump set that Fig. 2 adopts for the utility model.
In figure: 1-automatic water inlet valve, 2-heat-exchanging component, 3-fluid-tight tank, 4-liquid sealing pipe, 5-liquid level sensor, 6-vacuum transducer, 7-monitors tank, 8-first automatic valve, 9-holding vessel, 10-the 4th automatic valve, 11-second automatic valve, 12-the 5th automatic valve, 13-the 3rd automatic valve, 14-first filter, 15-separator, 16-vacuum pump set, 17-automatic control system, 18-vacuum buffer tank, 19-autocontrol valve, 20-vacuum pressure relief valve, 21-vacuum meter, 22-vavuum pump, 23-gas-liquid separator, 24-water tank, 25-water pump, 26-vacuum transducer, 27-second filter, 28-liquid level line, 29-liquid level sensor, 30-the 3rd filter, 31-valve switch, 32-evacuate air pipe.
Detailed description of the invention
In order to deepen understanding and cognition of the present utility model, below in conjunction with accompanying drawing the utility model be further described and introduce.
As shown in Figure 1, a kind of cooling tower vacuum water-feeding system, comprise water feed apparatus, heat-exchanger rig, supervising device, automatic separating apparatus, vacuum pump set and automatic control system, described automatic control system controls automatically to described water feed apparatus, heat-exchanger rig, supervising device, automatic separating apparatus and vacuum pump set.Described water feed apparatus comprises water inlet pipe and automatic water inlet valve 1, described heat-exchanger rig comprises the heat-exchanging component 2 of cooling tower, liquid sealing pipe 3 and fluid-tight tank 4, described heat-exchanging component 2 is set to sandwich construction, described water inlet pipe is connected with described heat-exchanging component 2, described automatic water inlet valve 1 is located on described water inlet pipe, one end of described liquid sealing pipe 4 is all connected with every one deck of described heat-exchanging component 2, and the other end is inserted into the bottom of described fluid-tight tank 3; Vacuum in described heat-exchanging component 2 can carry out Automatic adjusument according to the cooling water inflow of circulating water cooling tower and coolant water temperature.Described supervising device comprises a monitoring tank 7, and described monitoring tank 7 is connected with described heat-exchanging component 2, and described monitoring tank 7 is provided with liquid level sensor 5 and vacuum transducer 6; Described monitoring tank 7 reduces with described heat-exchanging component volume the special container customized by a certain percentage, feeds back the operating mode of described heat-exchanging component 2 by the vacuum and liquid level signal monitoring tank 7; Described automatic separating apparatus comprises separator 15 and holding vessel 9, described monitoring tank 7 is connected with separator 15, and the first automatic valve 8 is provided with between described monitoring tank 7 and separator 15, described separator 15 is connected with holding vessel 9, and between described separator 15 and holding vessel 9, be provided with the second automatic valve 11 and the 3rd automatic valve 13, be provided with the 4th automatic valve 10 at the liquid outlet place of described holding vessel 9, holding vessel is also provided with the vacuum breakdown device of vacuum be made up of the 5th automatic valve 12 and the first filter 14; Described vacuum pump set 16 is connected with described separator 15.Described heat-exchanging component 2 changes sandwich construction into by original single layer structure, and such system held vacuum requirement is lower, and when in monitoring tank 7, vacuum reaches-80kpa, described heat-exchanger rig just can carry out 100% heat exchange, and operating efficiency is from 0 ~ 100%.Described automatic separating apparatus is a complete automatic drain system, hypervolia in system senses holding vessel 9, system closes the second automatic valve 11 and the 3rd automatic valve 13 automatically, and automatically open the 5th automatic valve 12, abolish the vacuum environment of holding vessel 9, then system opens the 4th automatic valve 10 again, carries out System drainage; After System drainage completes, the 4th automatic valve 10 and the 5th automatic valve 12 are closed, and the second automatic valve 11 and the 3rd automatic valve 13 are opened.
Described automatic control system 17 adopts Redundant Control, comprise a set of programming software+soft Redundancy Software bag, A and B two overlap PLC+I/O module, three communication links and several slave stations, A and B control system independent operating, grasps the I/O control to slave station by main system.Based on A system during system boot; B system is as subsequent use; when any one assembly of main system A is made mistakes; control task can automatically switch in the middle of back-up system B and perform; now then based on B system; A system as subsequent use, thus decreases because the shutdown that causes of the fault of components and parts, substantially increases the security of system.
As shown in Figure 2, the autocontrol valve 19 that described vacuum pump set 16 comprises vacuum buffer tank 18 and is connected successively with vacuum buffer tank, vacuum pressure relief valve 20, vacuum meter 21, vavuum pump 22, gas-liquid separator 23, water tank 24 and water pump 25, described separator 15 is connected with described vacuum buffer tank 18, vacuum buffer tank 18 is provided with vacuum transducer 26, the water supplement port of described vavuum pump is connected with water tank 24 by pipeline, and on pipeline, be provided with the second filter 27 and valve switch 31, water tank 24 is provided with liquid level sensor 29, water inlet and delivery port, gas-liquid separator 23 is provided with evacuate air pipe 32, water inlet and delivery port, and be provided with valve switch 31 at water outlet, the 3rd filter 30 is provided with at pump intake place.Described vacuum pump set 16 is provided with two cover autocontrol valves 19, vacuum pressure relief valve 20, vacuum meter 21 and vavuum pump 22, and wherein a set of is for subsequent use.Described vavuum pump 22 is water-ring vacuum pump.Described vacuum pressure relief valve 20 uses as the security protection of whole vacuum pump set and repair and maintenance, described vacuum meter 21 is as the operation conditions of intuitive judgment water-ring vacuum pump, described second filter 27 is for guaranteeing that cooling water is not with impurity to enter water-ring vacuum pump, and described 3rd filter 30 is for guaranteeing that cooling water is not with impurity to enter water pump.
The technological process of described vacuum pump set is as follows:
1) open water pump 25, and detected the water level of water tank 24 by liquid level sensor 29;
2) when the water level in water tank 24 reaches the water level value of systemic presupposition, autocontrol valve 19 and water-ring vacuum pump 22 is opened;
3) in the vacuum pump set course of work, judged the vacuum condition of vacuum buffer tank 18 by vacuum transducer 26, and determine start and stop and the start and stop quantity (1 or 2) of water-ring vacuum pump 22 according to acquired results;
4) carry out of mixing wastewater with air liquid in gas-liquid separator 23 exported from water-ring vacuum pump 22 is separated, and cooling water wherein gives over to as cycling use of water, and gas is discharged by evacuate air pipe 32.
The upper water conservancy project process flow of described cooling tower vacuum water-feeding system is as follows:
1, open automatic control system and automatically open work, recirculated water is promoted to water inlet by water circulating pump, and opens vacuum pump set 16;
2, vacuumized by vacuum pump set the air in heat-exchanging component 2 and liquid sealing pipe 4 is found time gradually, and make it be full of water, allowing water inlet be communicated with fluid-tight tank 3 both sides simultaneously, formation siphon; Now vacuum pump set 16 is decommissioned, thus make whole water-feeding system not need to waste energy consumption again in running, and utilize siphon principle automatically to complete the heat transfer process of heat-exchanger rig and supplementing of following cycle water;
3, supervising device carries out Real-Time Monitoring to the vacuum environment of whole system, to separate out because of the free gas in recirculated water or other reasons causes its vacuum environment to be destroyed once monitor heat-exchanging component 2 and liquid sealing pipe 4, described vacuum pump set 16 just starts immediately, and extract the gas of this part in time out, siphon can be kept always;
4, described vacuum pump set 16 extracts in the process of gas, along with the evaporation of moisture in heat-exchanging component 2, in separator 15, be separated water outlet, the water separated enters holding vessel 9, and when the water in holding vessel 9 reaches a certain amount of, the 4th automatic valve 10 is automatically opened and water is discharged system automatically.
It should be noted that above-described embodiment, be not used for limiting protection domain of the present utility model, equivalents done on the basis of technique scheme or the alternative scope all falling into the utility model claim and protect.
Claims (7)
1. a cooling tower vacuum water-feeding system, it is characterized in that: comprise the water feed apparatus, heat-exchanger rig, supervising device, automatic separating apparatus and the vacuum pump set that are connected successively by pipeline, and adopt an automatic control system automatically to control described water feed apparatus, heat-exchanger rig, supervising device, automatic separating apparatus and vacuum pump set; Described water feed apparatus comprises water inlet pipe and automatic water inlet valve, described heat-exchanger rig comprises the heat-exchanging component of cooling tower, liquid sealing pipe and fluid-tight tank, described water inlet pipe is connected with described heat-exchanging component, described automatic water inlet valve is located on described water inlet pipe, one end of described liquid sealing pipe is connected with described heat-exchanging component, and the other end is inserted into the bottom of described fluid-tight tank; Described supervising device comprises a monitoring tank, and described monitoring tank is connected with described heat-exchanging component, and described monitoring tank is provided with liquid level sensor and vacuum transducer; Described automatic separating apparatus comprises separator and holding vessel, described monitoring tank is connected with separator, and the first automatic valve is provided with between described monitoring tank and separator, described separator is connected with holding vessel, and between described separator and holding vessel, be provided with the second automatic valve and the 3rd automatic valve, be provided with the 4th automatic valve at the liquid outlet place of described holding vessel, holding vessel is also provided with vacuum breakdown device of vacuum; Described vacuum pump set is connected with described separator.
2. cooling tower vacuum water-feeding system as claimed in claim 1, it is characterized in that, the autocontrol valve that described vacuum pump set comprises vacuum buffer tank and is connected successively with vacuum buffer tank, vacuum pressure relief valve, vacuum meter, vavuum pump, water tank, gas-liquid separator and water pump, vacuum buffer tank is provided with vacuum transducer, the water supplement port of described vavuum pump is connected with water tank by pipeline, and on pipeline, be provided with the second filter and valve switch, water tank is provided with liquid level sensor, water inlet and delivery port, gas-liquid separator is provided with evacuate air pipe, water inlet and delivery port, and be provided with valve switch at water outlet, the 3rd filter is provided with at pump intake place.
3. cooling tower vacuum water-feeding system as claimed in claim 2, it is characterized in that, described vacuum pump set is provided with two cover autocontrol valves, vacuum pressure relief valve, vacuum meter and vavuum pump.
4. cooling tower vacuum water-feeding system as claimed in claim 1, it is characterized in that, the vacuum breakdown device of vacuum that described holding vessel is arranged is made up of the 5th automatic valve and the first filter.
5. cooling tower vacuum water-feeding system as claimed in claim 1, it is characterized in that, described heat-exchanging component is set to sandwich construction, and described liquid sealing pipe is all connected with every one deck of described heat-exchanging component.
6. cooling tower vacuum water-feeding system as claimed in claim 1 or 2, it is characterized in that, described automatic control system adopts Redundancy Design, comprise A and B two and overlap PLC, I/O module, three communication links and several slave stations, A and B control system independent operating, grasps the I/O control to slave station by main system.
7. cooling tower vacuum water-feeding system as claimed in claim 2, is characterized in that, described vavuum pump adopts water-ring vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520206543.9U CN204574918U (en) | 2015-04-08 | 2015-04-08 | Cooling tower vacuum water-feeding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520206543.9U CN204574918U (en) | 2015-04-08 | 2015-04-08 | Cooling tower vacuum water-feeding system |
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| CN204574918U true CN204574918U (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520206543.9U Active CN204574918U (en) | 2015-04-08 | 2015-04-08 | Cooling tower vacuum water-feeding system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864765A (en) * | 2015-04-08 | 2015-08-26 | 南京阿克赛斯科技有限公司 | Vacuum water-feeding system of cooling tower |
| CN106050677A (en) * | 2016-08-04 | 2016-10-26 | 荆州市宏泉井业节能科技有限公司 | Vacuum emptying device for water pump |
-
2015
- 2015-04-08 CN CN201520206543.9U patent/CN204574918U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864765A (en) * | 2015-04-08 | 2015-08-26 | 南京阿克赛斯科技有限公司 | Vacuum water-feeding system of cooling tower |
| CN104864765B (en) * | 2015-04-08 | 2017-01-04 | 南京阿克赛斯科技有限公司 | Vacuum water feeding system of cooling tower |
| CN106050677A (en) * | 2016-08-04 | 2016-10-26 | 荆州市宏泉井业节能科技有限公司 | Vacuum emptying device for water pump |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |