CN202582360U - Constant-temperature and constant-pressure and constant-liquid-level energy-saving type cooling water control system - Google Patents
Constant-temperature and constant-pressure and constant-liquid-level energy-saving type cooling water control system Download PDFInfo
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- CN202582360U CN202582360U CN 201220203871 CN201220203871U CN202582360U CN 202582360 U CN202582360 U CN 202582360U CN 201220203871 CN201220203871 CN 201220203871 CN 201220203871 U CN201220203871 U CN 201220203871U CN 202582360 U CN202582360 U CN 202582360U
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Abstract
The utility model relates to a constant-temperature, constant-pressure and constant-liquid-level energy-saving type cooling water control system. The constant-temperature, constant-pressure and constant-liquid-level energy-saving type cooling water control system comprises a constant-temperature and constant-pressure controller and a constant-liquid-level controller. The constant-temperature and constant-pressure controller is connected with a cooling tower draught fan, an upper column pump group, a water supply pump group, a hot water pool, a cold water pool and a by-pass valve, and the constant-liquid-level controller is connected with a rotational flow well and a lift pump group. The constant-temperature, constant-pressure and constant-liquid-level energy-saving type cooling water control system has the advantages that water supply temperature,return water temperature and ambient temperature form closed-loop control, constant water supply temperature of cooling water in different environment can be achieved by the closed-loop control of the water supply temperature and output power of a cooling tower group; constant-pressure control can be achieved by the closed-loop control of water supply pressure, water supply flow quantity and a water supply pump, abnormal conditions of flow quantity can be discovered in time and leakage of a pipeline can be reduced; and by the closed-loop control of water taking of the rotational flow well used to detect a liquid level of the rotational flow well and the closed-loop control of a lift pump, the liquid level of the rotational flow well can be controlled on a high point, lift speed can be reduced, and energy-saving effect can be achieved.
Description
Technical field
The utility model relates to the apparatus cools device, more particularly, relates to the permanent liquid level energy-saving type cooling water control of a kind of constant temperature and pressure system.
Background technology
The too high safe operation that influences equipment of metallurgy industry furnace equipment coolant water temperature is crossed low meeting because heat too much increase energy consumption.
In traditional cooling water equipment, supply water temperature is adopted open loop control, the shortcoming of said technical scheme is: 1, do not exert oneself with environment temperature and backwater water temperature adjustment cooling system; Cause waste when 2, lower or return water temperature is low in environment temperature; If 3 supply water temperatures are on the low side, then can cause the high-temperature service heat exchange excessive, off-energy.
In traditional cooling water equipment, the logic control of height liquid level is adopted in the water intaking level control, that is, pump is opened in termination of pumping when hanging down liquid level during high liquid level (HLL).Adopt the deficiency of this technical scheme to be: acting increases when hanging down liquid level, causes waste.
In order to address the above problem; Chinese invention patent application number 97115133.4 discloses the cooling tower that a kind of energy can be adjusted variation automatically with load; It is characterized in that establishing a fan motor and a controller above the cooling tower body center, and in cooling tower air outlet place or its water pond, one or more sensor is set, utilize sensor with the cooling water in the detecting cooling tower or the temperature value of air outlet air; Again with controller in after the temperature value comparison that sets; Export a corresponding control signal and give fan motor, do not have the running of section variable air rate with regulation and control fan motor rotating speed, and then reach the heat-sinking capability of adjustment cooling tower; Make coolant water temperature can be in a desirable temperature constant state by this, prevent that effectively coolant water temperature from crossing low and air-conditioning system generation excessive condensation phenomenon.
But still there is deficiency in above-mentioned technical scheme: the thermostatic control scheme of coolant water temperature still is provided, and cool-down method is single, and speed is slower; Do not relate to the hydraulic pressure in the cooling water equipment, the liquid level of eddy flow well etc., can't it be used, reach optimum production efficiency.
The utility model content
The purpose of the utility model is to overcome the deficiency of prior art, and a kind of permanent liquid level energy-saving type cooling water control of constant temperature and pressure system that can control water supply flow, supply water temperature, eddy flow well liquid level is provided.
The technical scheme of the utility model is following:
The permanent liquid level energy-saving type cooling water control of a kind of constant temperature and pressure system; Comprise constant temperature and pressure controller, permanent fluid level controller; Constant temperature and pressure controller and blower fan of cooling tower, go up tower pump group, supply-water pump group, hot-tub, water cooling pond, by-passing valve and link to each other, described permanent fluid level controller links to each other with eddy flow well, elevator pump group.
As preferably; Described constant temperature and pressure controller comprises a PLC controller, first driving governor, hot-tub liquid level sensor, hot-tub temperature sensor, supply water temperature sensor, water supply flow sensor; A described PLC controller links to each other with first driving governor, hot-tub liquid level sensor, hot-tub temperature sensor, supply water temperature sensor, water supply flow sensor respectively; Described first driving governor links to each other with blower fan of cooling tower, last tower pump group, supply-water pump group respectively; Be used to control blower fan of cooling tower, thus the control supply water temperature; Tower pump group in the control, thus the tower water yield is gone up in control, forms closed-loop control.
As preferably, described permanent fluid level controller comprises the 2nd PLC controller, second driving governor, eddy flow well liquid level sensor, and described the 2nd PLC controller links to each other with second driving governor, eddy flow well liquid level sensor respectively; Described second driving governor links to each other with the elevator pump group, is used to control the elevator pump group, thereby the liquid level of control eddy flow well forms closed-loop control.
As preferably, a described PLC controller, the 2nd PLC controller are same PLC controller; First driving governor, second driving governor are same driving governor.
As preferably, the hot-tub liquid level sensor is the non-contact level sensing device that is installed on the contact liquid level sensor in the hot-tub or is installed in the hot-tub opening part; The hot-tub temperature sensor is installed in the hot-tub.
As preferably, eddy flow well liquid level sensor is the non-contact level sensing device that is installed on the contact liquid level sensor in the eddy flow well or is installed in eddy flow well opening part.
As preferably, a described PLC controller links to each other with by-passing valve, is used to control hydraulic balance.
As preferably, described constant temperature and pressure controller, permanent fluid level controller are divided equally and are contained man-machine interface, and the man-machine interface of constant temperature and pressure controller, permanent fluid level controller is the same man-machine interface or the man-machine interface of independently separating.
The beneficial effect of the utility model is following:
Supply water temperature and return water temperature and environment temperature form closed-loop control, come the closed-loop control of exerting oneself with the cooling tower group, cooling water temperature constant when reaching the varying environment temperature through supply water temperature; Carry out closed-loop control through pressure of supply water, water supply flow and supply-water pump and reach constant voltage control, and can in time find the Traffic Anomaly situation, reduce pipe leakage; The closed-loop control of eddy flow well high liquid level (HLL) water intaking detects eddy flow well liquid level, through with the elevator pump closed-loop control, the level control of eddy flow well at high point, is reduced hoisting depth, reach energy-saving effect.
The application of the described technical scheme of the utility model, that brings really connects economic benefit: in water treatment amount 1000Nm/h, per hour can practice thrift 50 degree electricity, can practice thrift 400,000 degree electricity year, about 200,000 yuan of year benefit.
Description of drawings
Fig. 1 is a constant temperature and pressure controller connection sketch map in force;
Fig. 2 is a permanent fluid level controller connection sketch map in force;
Among the figure: the 1st, blower fan of cooling tower, the 2nd, last tower pump group, the 3rd, supply-water pump group, the 4th, hot and cold pond by-passing valve; The 5th, the elevator pump group, 6 is PLC controllers, and 7 is first driving governors, and 8 is first man-machine interfaces; The 9th, hot-tub liquid level sensor, the 10th, hot-tub temperature sensor, the 11st, supply water temperature sensor, the 12nd, water supply flow sensor; 13 is the 2nd PLC controllers, and 14 is second driving governors, and 15 is second man-machine interfaces, the 16th, and eddy flow well liquid level sensor.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
The permanent liquid level energy-saving type cooling water control of a kind of constant temperature and pressure system; Comprise constant temperature and pressure controller, permanent fluid level controller; Constant temperature and pressure controller and blower fan of cooling tower 1, go up tower pump group 2, supply-water pump group 3, hot-tub, water cooling pond, by-passing valve and link to each other, described permanent fluid level controller links to each other with eddy flow well, elevator pump group 5.
Described constant temperature and pressure controller, permanent fluid level controller are divided equally and are contained man-machine interface, and the man-machine interface of constant temperature and pressure controller, permanent fluid level controller is the same man-machine interface or the man-machine interface of independently separating.
As shown in Figure 1; In the present embodiment; Described constant temperature and pressure controller comprises a PLC controller 6, first driving governor 7, first man-machine interface 8, hot-tub liquid level sensor 9, hot-tub temperature sensor 10, supply water temperature sensor 11, water supply flow sensor 12; A described PLC controller 6 links to each other with first driving governor 7, hot-tub liquid level sensor 9, hot-tub temperature sensor 10, supply water temperature sensor 11, water supply flow sensor 12 respectively; Described first driving governor 7 links to each other with blower fan of cooling tower 1, last tower pump group 2, supply-water pump group 3 respectively, is used to control blower fan of cooling tower 1, thus the control supply water temperature; Tower pump group 2 in the control, thus the tower water yield is gone up in control, forms closed-loop control.A described PLC controller 6 links to each other with hot and cold pond by-passing valve 4, is used to control hydraulic balance.
Hot-tub liquid level sensor 9 is the non-contact level sensing devices that are installed on the contact liquid level sensor in the hot-tub or are installed in the hot-tub opening part; Hot-tub temperature sensor 10 is installed in the hot-tub.
Constant temperature, constant pressure water supply control flow are following:
1) sets required supply water temperature, pressure through first man-machine interface 8;
2) hot-tub liquid level sensor 9, hot-tub temperature sensor 10, supply water temperature sensor 11, water supply flow sensor 12 carry out real-time data acquisition, and are sent to a PLC controller 6;
3) a PLC controller 6 is analyzed through the data message that obtains, and sends control commands to first driving governor 7, control blower fan of cooling tower 1, goes up tower pump group 2, supply-water pump group 3, thereby the control supply water temperature, goes up the tower water yield;
A PLC controller 6 is also controlled hot and cold pond by-passing valve 4 simultaneously;
4) circulation step 2), step 3).
Described permanent fluid level controller comprises the 2nd PLC controller 13, second driving governor 14, eddy flow well liquid level sensor 16, and described the 2nd PLC controller 13 links to each other with second driving governor 14, eddy flow well liquid level sensor 16 respectively; Described second driving governor 14 links to each other with elevator pump group 5, is used to control elevator pump group 5, thereby the liquid level of control eddy flow well forms closed-loop control.
Eddy flow well liquid level sensor 16 is the non-contact level sensing devices that are installed on the contact liquid level sensor in the eddy flow well or are installed in eddy flow well opening part.
Permanent liquid level control flow is following:
1) sets required liquid level through second man-machine interface 15;
2) eddy flow well liquid level sensor 16 carries out real-time data acquisition, and is sent to the 2nd PLC controller 13;
3) the 2nd PLC controller 13 is analyzed through the data message that obtains, and sends control command to second driving governor 14, control elevator pump group 5, thereby the liquid level of control eddy flow well;
4) circulation step 2), step 3).
A described PLC controller 6, the 2nd PLC controller 13 are designed to same PLC controller; First driving governor 7, second driving governor 14 are designed to same driving governor.
The foregoing description only is to be used for explaining the utility model, and is not with the qualification of doing the utility model.So long as according to the technical spirit of the utility model, in the scope to the claim that the foregoing description changes, modification etc. all will drop on the utility model.
Claims (8)
1. the permanent liquid level energy-saving type cooling water of constant temperature and pressure is controlled system; It is characterized in that; Comprise constant temperature and pressure controller, permanent fluid level controller; Constant temperature and pressure controller and blower fan of cooling tower, go up tower pump group, supply-water pump group, hot-tub, water cooling pond, by-passing valve and link to each other, described permanent fluid level controller links to each other with eddy flow well, elevator pump group.
2. the permanent liquid level energy-saving type cooling water control of constant temperature and pressure according to claim 1 system; It is characterized in that; Described constant temperature and pressure controller comprises a PLC controller, first driving governor, hot-tub liquid level sensor, hot-tub temperature sensor, supply water temperature sensor, water supply flow sensor; A described PLC controller links to each other with first driving governor, hot-tub liquid level sensor, hot-tub temperature sensor, supply water temperature sensor, water supply flow sensor respectively; Described first driving governor links to each other with blower fan of cooling tower, last tower pump group, supply-water pump group respectively, is used to control blower fan of cooling tower, thus the control supply water temperature; Tower pump group in the control, thus the tower water yield is gone up in control, forms closed-loop control.
3. the permanent liquid level energy-saving type cooling water control of constant temperature and pressure according to claim 2 system; It is characterized in that; Described permanent fluid level controller comprises the 2nd PLC controller, second driving governor, eddy flow well liquid level sensor, and described the 2nd PLC controller links to each other with second driving governor, eddy flow well liquid level sensor respectively; Described second driving governor links to each other with the elevator pump group, is used to control the elevator pump group, thereby the liquid level of control eddy flow well forms closed-loop control.
4. the permanent liquid level energy-saving type cooling water control of constant temperature and pressure according to claim 3 system is characterized in that a described PLC controller, the 2nd PLC controller are same PLC controller; First driving governor, second driving governor are same driving governor.
5. the permanent liquid level energy-saving type cooling water control of constant temperature and pressure according to claim 2 system is characterized in that the hot-tub liquid level sensor is the non-contact level sensing device that is installed on the contact liquid level sensor in the hot-tub or is installed in the hot-tub opening part; The hot-tub temperature sensor is installed in the hot-tub.
6. the permanent liquid level energy-saving type cooling water control of constant temperature and pressure according to claim 3 system is characterized in that eddy flow well liquid level sensor is the non-contact level sensing device that is installed on the contact liquid level sensor in the eddy flow well or is installed in eddy flow well opening part.
7. the permanent liquid level energy-saving type cooling water control of constant temperature and pressure according to claim 2 system is characterized in that a described PLC controller links to each other with by-passing valve, is used to control hydraulic balance.
8. the permanent liquid level energy-saving type cooling water control of constant temperature and pressure according to claim 3 system; It is characterized in that; Described constant temperature and pressure controller; Permanent fluid level controller is divided equally and is contained man-machine interface, and the man-machine interface of constant temperature and pressure controller, permanent fluid level controller is the same man-machine interface or the man-machine interface of independently separating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220203871 CN202582360U (en) | 2012-05-08 | 2012-05-08 | Constant-temperature and constant-pressure and constant-liquid-level energy-saving type cooling water control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220203871 CN202582360U (en) | 2012-05-08 | 2012-05-08 | Constant-temperature and constant-pressure and constant-liquid-level energy-saving type cooling water control system |
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| CN202582360U true CN202582360U (en) | 2012-12-05 |
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| CN 201220203871 Expired - Lifetime CN202582360U (en) | 2012-05-08 | 2012-05-08 | Constant-temperature and constant-pressure and constant-liquid-level energy-saving type cooling water control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014207A (en) * | 2012-12-07 | 2013-04-03 | 江苏永钢集团有限公司 | Automatic water-temperature regulating system for ironmaking comprehensive pump house |
| CN103970082A (en) * | 2013-01-25 | 2014-08-06 | 费希尔控制国际公司 | Methods and apparatus to interface with a digital control loop |
| CN110986618A (en) * | 2019-12-10 | 2020-04-10 | 山西太钢不锈钢股份有限公司 | Recycling method of cooling tower |
-
2012
- 2012-05-08 CN CN 201220203871 patent/CN202582360U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014207A (en) * | 2012-12-07 | 2013-04-03 | 江苏永钢集团有限公司 | Automatic water-temperature regulating system for ironmaking comprehensive pump house |
| CN103970082A (en) * | 2013-01-25 | 2014-08-06 | 费希尔控制国际公司 | Methods and apparatus to interface with a digital control loop |
| CN103970082B (en) * | 2013-01-25 | 2019-03-22 | 费希尔控制国际公司 | For the method and apparatus with digital control loop interface |
| CN110986618A (en) * | 2019-12-10 | 2020-04-10 | 山西太钢不锈钢股份有限公司 | Recycling method of cooling tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170815 Address after: 363000 Fujian Province, Zhangzhou City Xiangcheng District Pu Nan Zhen Dian Zi Wei Economic Development Zone Patentee after: Fujian Sanbao Steel Co., Ltd. Address before: 363000 Fujian Province, Zhangzhou City Xiangcheng District Pu Nan Zhen Dian Zi Wei Sambo Industrial Park Patentee before: Fujian Sanbao Special Steel Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |
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| CX01 | Expiry of patent term |