CN212179685U - Novel cooling control system for cold spot - Google Patents
Novel cooling control system for cold spot Download PDFInfo
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- CN212179685U CN212179685U CN202020526168.7U CN202020526168U CN212179685U CN 212179685 U CN212179685 U CN 212179685U CN 202020526168 U CN202020526168 U CN 202020526168U CN 212179685 U CN212179685 U CN 212179685U
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Abstract
The utility model discloses a new cooling control system for cold spots, which comprises a heat exchanger, a water supply interface, a water return interface and a compressed air purging interface; the water supply connector is connected to the heat exchanger through a water inlet pipe, a first manual stop valve, a Y-shaped filter and a first pneumatic angle seat valve are sequentially arranged between the water supply connector and the water inlet pipe, an emptying pipe is connected between the first pneumatic angle seat valve and the heat exchanger, and a drain valve is arranged on the emptying pipe; the heat exchanger is connected with a water return interface through a water return pipe, a second pneumatic angle seat valve, a third pneumatic angle seat valve and a second manual stop valve are sequentially arranged between the heat exchanger and the water return interface, and an air inlet pipe is connected between the heat exchanger and the second pneumatic angle seat valve and connected with a compressed air purging interface. The utility model saves the time for replacing the chilled water in the heat exchanger; the time for adjusting the valve is reduced; the oscillation time of the regulating valve is reduced, and the cost is greatly saved.
Description
Technical Field
The utility model relates to a cooling control system especially relates to a new cold point cooling control system.
Background
The existing injection water cooling point has the defects that the initial cooling speed is low in the using process, after a period of time, the temperature drops suddenly and can be rapidly reduced to a temperature below the using temperature, the PID regulating valve is adjusted back, large fluctuation can be caused, long fluctuation time can be caused under the condition that the precision required by a client is +/-2 ℃, and the continuous production of the client is influenced.
Meanwhile, in the temperature reduction process within the temperature range of which the temperature does not reach the requirement of a customer, the injection water is discharged through the discharge valve, and at the moment, if the fluctuation time is long, the discharge time is long, so that certain waste of the injection water can be caused.
Therefore, the development of a new cooling control system for a cold spot becomes a problem to be solved by those skilled in the art.
Disclosure of Invention
The utility model provides a solve above-mentioned not enough, provide a new cold point cooling control system.
The above object of the present invention is achieved by the following technical solutions: a new cooling control system for a cold spot comprises a heat exchanger, a water supply interface, a water return interface and a pressure-air purging interface;
the water supply connector is connected to the heat exchanger through a water inlet pipe, a first manual stop valve, a Y-shaped filter and a first pneumatic angle seat valve are sequentially arranged between the water supply connector and the water inlet pipe, an emptying pipe is connected between the first pneumatic angle seat valve and the heat exchanger, and a drain valve is arranged on the emptying pipe;
the heat exchanger is connected with a water return interface through a water return pipe, a second pneumatic angle seat valve, a third pneumatic angle seat valve and a second manual stop valve are sequentially arranged between the heat exchanger and the water return interface, and an air inlet pipe is connected between the heat exchanger and the second pneumatic angle seat valve and is connected with a compressed air purging interface; the second pneumatic angle seat valve and the third pneumatic angle seat valve are connected to a water inlet pipe between the first pneumatic angle seat valve and the heat exchanger through a cross-over pipeline, and a first pneumatic ball valve is arranged on the cross-over pipeline;
the heat exchanger is connected with a first pneumatic diaphragm valve through a water outlet pipe, a temperature probe TT is arranged between the first pneumatic diaphragm valve and the heat exchanger, the first pneumatic diaphragm valve is connected with a sampling valve, a second pneumatic diaphragm valve and a pneumatic adjusting diaphragm valve, the pneumatic adjusting diaphragm valve is connected with a drain pipe, and a one-way valve is arranged on the drain pipe; and a first manual diaphragm valve and a second manual diaphragm valve are arranged between the second pneumatic diaphragm valve and the heat exchanger, and a pipeline is connected between the first manual diaphragm valve and the second manual diaphragm valve.
The first manual stop valve and the second manual stop valve are used for cutting off chilled water in the maintenance process of the heat exchanger; the Y-shaped filter is used for filtering impurities in the frozen water to avoid blocking the heat exchanger; the first pneumatic angle seat valve and the third pneumatic angle seat valve are used for automatically controlling the inlet and the outlet of the chilled water; the first pneumatic ball valve and the second pneumatic ball valve are used for blowing the chilled water in the heat exchanger back to the chilled water main pipeline when the air pressure blowing is carried out; the pneumatic regulating valve achieves the aim of controlling the temperature of the temperature probe TT by regulating the flow of the chilled water; the first manual diaphragm valve and the second manual diaphragm valve are used for adjusting the flow; the first pneumatic diaphragm valve is a valve of a use point; the manual ball valve is used for emptying the heat exchanger in the production stopping process; when the second pneumatic diaphragm valve is used in the first pneumatic diaphragm valve, the second pneumatic diaphragm valve is closed, so that water backflow is avoided; the pneumatic adjusting diaphragm valve is used for controlling the water discharge; the check valve is used to prevent the drain water from flowing back.
In consideration of the current actual situation, a new cooling process is summarized by observing the cooling process of the system.
1) When a start button is pressed and water begins to be used, firstly, the diaphragm valve is pneumatically adjusted to a fixed opening degree x1% (the opening degree refers to the size of an opening stroke or angle of the valve, x1% is a fixed numerical value and is different along with different discharge flow working conditions), and the second pneumatic diaphragm valve is closed; simultaneously opening the first pneumatic angle seat valve and the third pneumatic angle seat valve, and opening the pneumatic adjusting valve to a fixed set value of 100 percent (the opening degree of 100 percent can enable cooling water to rapidly enter the heat exchanger, so the setting is 100 percent), enabling the frozen water to rapidly enter the heat exchanger (the direction of a green arrow in the figure), and replacing hot water in the heat exchanger;
2) delaying for 10 seconds (the time delay is set by a PLC, the set time is on a touch screen), and adjusting a pneumatic regulating valve to a fixed value X2% (the index of X2% is the valve opening when the temperature behind the heat exchanger is stable when the heat exchanger is used for the last time);
3) after 30 seconds of delay, the pneumatic control valve is adjusted according to the temperature of the temperature probe (the temperature probe at the outlet of the heat exchanger), in the adjusting process, when the temperature of the temperature probe reaches the set point temperature T1 (the temperature is different along with different customer requirements, and can be temporarily 25 ℃ in advance), the opening degree of the pneumatic control valve is fixed (the temperature probe TT01 is used for temperature feedback, the flow of chilled water is adjusted through the control valve, and then the temperature of the temperature probe TT01 is controlled), the change is avoided, meanwhile, the pneumatic control diaphragm valve is closed, the first pneumatic diaphragm valve is opened, and the service point is used for water.
4) When a stop button is pressed and water is stopped, the opening degree of the current pneumatic regulating valve is transmitted to x2%, meanwhile, the first pneumatic angle seat valve, the third pneumatic angle seat valve and the first pneumatic diaphragm valve are closed, the pneumatic regulating diaphragm valve is opened to 100%, and quick water drainage is achieved.
5) And after the temperature probe reaches the backwater required temperature T2 (T2 is 70 ℃), closing the pneumatic adjusting diaphragm valve and opening the second pneumatic diaphragm valve.
Compared with the prior art, the utility model the advantage be:
1) through the adjustment of the first step, chilled water is quickly introduced into the heat exchanger, so that the time for replacing the chilled water in the heat exchanger is saved; the second step is that the regulating valve is opened to a fixed opening degree and then regulated, so that the time for regulating the valve is reduced; and thirdly, when the set temperature is within +/-1 ℃ of T1, the opening of the pneumatic regulating valve 23 is fixed and is not changed, and the oscillation time of the regulating valve is reduced (the oscillation time refers to the reciprocating time of the rising and falling of the temperature of the accessory of T1, and the water temperature is unstable and cannot be used normally in the reciprocating process).
2) The price of the water for injection is 120 yuan/ton, the drainage flow of the heat exchanger is 2000l/h, and the time saved each time is about 3 minutes approximately. Through the adjustment, the single cold point saves about 100l of injection water once, if a system has 6 cold points, each cold point is used for 3 times a day, and the daily saving cost is 216 yuan; the annual saving cost is 78840 yuan calculated according to the actual production time of 300 days in 365 days per year.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, a new cooling control system for a cold spot comprises a heat exchanger E1, a water supply interface CHWS, a water return interface CHWR, and a compressed air purge interface CA;
the water supply interface CHWS is connected to a heat exchanger E1 through a water inlet pipe 1, a first manual stop valve 11, a Y-shaped filter 31 and a first pneumatic angle seat valve 21 are sequentially arranged between the water supply interface CHWS and the water inlet pipe, a drain pipe 2 is connected between the first pneumatic angle seat valve 21 and the heat exchanger E1, and a drain valve 12 is arranged on the drain pipe 2;
the heat exchanger E1 is connected with a water return interface CHWR through a water return pipe 3, a second pneumatic angle seat valve 23, a third pneumatic angle seat valve 24 and a second manual stop valve 13 are sequentially arranged between the heat exchanger E1 and the water return interface CHWR, and an air inlet pipe 4 is connected between the heat exchanger E1 and the second pneumatic angle seat valve 23 and is connected with a pressure-air purging interface CA; the second pneumatic angle seat valve 23 and the third pneumatic angle seat valve 24 are connected to the water inlet pipe 1 between the first pneumatic angle seat valve 21 and the heat exchanger E1 through a crossover pipe 5, and a first pneumatic ball valve 22 is arranged on the crossover pipe 5;
the heat exchanger E1 is connected with a first pneumatic diaphragm valve 25 through a water outlet pipe 6, a temperature probe TT01 is arranged between the first pneumatic diaphragm valve 25 and the heat exchanger E1, the first pneumatic diaphragm valve 25 is connected with a sampling valve 26, a second pneumatic diaphragm valve 27 and a pneumatic adjusting diaphragm valve 28, the pneumatic adjusting diaphragm valve 28 is connected with a drain pipe 7, and a one-way valve 32 is arranged on the drain pipe 7; a first manual diaphragm valve 14 and a second manual diaphragm valve 15 are arranged between the second pneumatic diaphragm valve 27 and the heat exchanger E1, and a pipeline 8 is connected between the first manual diaphragm valve 14 and the second manual diaphragm valve 15.
The first manual stop valve 11 and the second manual stop valve 13 are used for cutting off chilled water in the heat exchanger maintenance process; the Y-shaped filter 31 is used for filtering impurities in the frozen water to avoid blocking the heat exchanger; the first pneumatic angle seat valve 21 and the third pneumatic angle seat valve 24 are used for automatically controlling the inlet and outlet of the chilled water; the first pneumatic ball valve 22 and the second pneumatic ball valve 29 are used for blowing the chilled water in the heat exchanger back to the chilled water main pipeline when the air pressure purging is performed; the pneumatic and pneumatic adjusting valve 23 controls the temperature of the temperature probe TT01 by adjusting the flow rate of the chilled water; a first manual diaphragm valve 14 and a second manual diaphragm valve 15 are used for adjusting the flow rate; the first pneumatic diaphragm valve 25 is a point-of-use valve; the manual ball valve 12 is used for emptying the heat exchanger in the production stopping process; when the second pneumatic diaphragm valve 27 is used in the first pneumatic diaphragm valve 25, the second pneumatic diaphragm valve 27 is closed to avoid water backflow; pneumatically regulated diaphragm valves 28 are used to control the amount of water displaced; the check valve 32 is used to prevent drain water from flowing back.
In consideration of the current actual situation, a new cooling process is summarized by observing the cooling process of the system.
1) When the start button is pressed and water begins to be used, the diaphragm valve 28 is pneumatically adjusted to a fixed opening degree x1% (the opening degree refers to the size of an opening stroke or angle of the valve, x1% is a fixed numerical value and is different along with different discharge flow working conditions), and the second pneumatic diaphragm valve 27 is closed; simultaneously opening the first pneumatic angle seat valve 21 and the third pneumatic angle seat valve 24, and opening the pneumatic adjusting valve 23 to a fixed set value of 100% (the opening of 100% can enable cooling water to rapidly enter the heat exchanger, so the setting is 100%), enabling the chilled water to rapidly enter the heat exchanger (the direction of a green arrow in the figure), and replacing hot water in the heat exchanger;
2) delaying for 10 seconds (delaying is set by a PLC, the set time is on a touch screen), and adjusting the pneumatic regulating valve 23 to a fixed value X2% (the index of X2% is the valve opening when the temperature behind the heat exchanger is stable when the heat exchanger is used for the last time);
3) after 30 seconds of delay, the pneumatic control valve 23 is adjusted according to the temperature of the temperature probe TT01 (the temperature probe at the outlet of the heat exchanger), in the adjusting process, when the temperature of the temperature probe TT01 reaches the set point temperature T1 (the temperature is different along with different customer requirements, and can be temporarily 25 ℃ in advance), the opening degree of the pneumatic control valve 23 is fixed (the temperature probe TT01 is used for temperature feedback, the flow of the chilled water is adjusted through the control valve, and then the temperature of the temperature probe TT01 is controlled), the change is avoided, meanwhile, the pneumatic control diaphragm valve 28 is closed, the first pneumatic diaphragm valve 25 is opened, and the point-of-use water is used.
4) When the stop button is pressed and water is stopped, the current opening degree of the pneumatic adjusting valve 23 is transmitted to x2%, the first pneumatic angle seat valve 21, the third pneumatic angle seat valve 24 and the first pneumatic diaphragm valve 25 are closed, the pneumatic adjusting diaphragm valve 28 is opened to 100%, and quick water drainage is achieved.
5) After the temperature probe TT01 reaches the backwater required temperature T2 (T2 is 70 ℃), the pneumatic adjusting diaphragm valve 28 is closed, and the second pneumatic diaphragm valve 27 is opened.
6) Through the adjustment of the first step, chilled water is quickly introduced into the heat exchanger, so that the time for replacing the chilled water in the heat exchanger is saved; the second step is that the regulating valve is opened to a fixed opening degree and then regulated, so that the time for regulating the valve is reduced; and thirdly, when the set temperature is within +/-1 ℃ of T1, the opening of the pneumatic regulating valve 23 is fixed and is not changed, and the oscillation time of the regulating valve is reduced (the oscillation time refers to the reciprocating time of the rising and falling of the temperature at the T1 accessory, and the water temperature is unstable in the reciprocating process and cannot be used normally).
7) The price of the water for injection is 120 yuan/ton, the drainage flow of the heat exchanger is 2000l/h, and the time saved each time is about 3 minutes approximately. Through the adjustment, the single cold point saves about 100l of injection water once, if a system has 6 cold points, each cold point is used for 3 times a day, and the daily saving cost is 216 yuan; the annual saving cost is 78840 yuan calculated according to the actual production time of 300 days in 365 days per year.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (1)
1. The utility model provides a new cold point cooling control system which characterized in that: the device comprises a heat exchanger, a water supply interface, a water return interface and a pressure-air purging interface;
the water supply connector is connected to the heat exchanger through a water inlet pipe, a first manual stop valve, a Y-shaped filter and a first pneumatic angle seat valve are sequentially arranged between the water supply connector and the water inlet pipe, an emptying pipe is connected between the first pneumatic angle seat valve and the heat exchanger, and a drain valve is arranged on the emptying pipe;
the heat exchanger is connected with a water return interface through a water return pipe, a second pneumatic angle seat valve, a third pneumatic angle seat valve and a second manual stop valve are sequentially arranged between the heat exchanger and the water return interface, and an air inlet pipe is connected between the heat exchanger and the second pneumatic angle seat valve and is connected with a compressed air purging interface; the second pneumatic angle seat valve and the third pneumatic angle seat valve are connected to a water inlet pipe between the first pneumatic angle seat valve and the heat exchanger through a cross-over pipeline, and a first pneumatic ball valve is arranged on the cross-over pipeline;
the heat exchanger is connected with a first pneumatic diaphragm valve through a water outlet pipe, a temperature probe TT is arranged between the first pneumatic diaphragm valve and the heat exchanger, the first pneumatic diaphragm valve is connected with a sampling valve, a second pneumatic diaphragm valve and a pneumatic adjusting diaphragm valve, the pneumatic adjusting diaphragm valve is connected with a drain pipe, and a one-way valve is arranged on the drain pipe; and a first manual diaphragm valve and a second manual diaphragm valve are arranged between the second pneumatic diaphragm valve and the heat exchanger, and a pipeline is connected between the first manual diaphragm valve and the second manual diaphragm valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020526168.7U CN212179685U (en) | 2020-04-08 | 2020-04-08 | Novel cooling control system for cold spot |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020526168.7U CN212179685U (en) | 2020-04-08 | 2020-04-08 | Novel cooling control system for cold spot |
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| CN212179685U true CN212179685U (en) | 2020-12-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114909835A (en) * | 2022-05-18 | 2022-08-16 | 楚天华通医药设备有限公司 | Fluid system cooling device and fluid processing system |
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- 2020-04-08 CN CN202020526168.7U patent/CN212179685U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114909835A (en) * | 2022-05-18 | 2022-08-16 | 楚天华通医药设备有限公司 | Fluid system cooling device and fluid processing system |
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