CN111296887A - Cold supply device and control mode - Google Patents
Cold supply device and control mode Download PDFInfo
- Publication number
- CN111296887A CN111296887A CN202010130924.9A CN202010130924A CN111296887A CN 111296887 A CN111296887 A CN 111296887A CN 202010130924 A CN202010130924 A CN 202010130924A CN 111296887 A CN111296887 A CN 111296887A
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- China
- Prior art keywords
- valve
- pipeline
- cold
- cold water
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D1/00—Devices using naturally cold air or cold water
- F25D1/02—Devices using naturally cold air or cold water using naturally cold water, e.g. household tap water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Other Air-Conditioning Systems (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a cold supply device and a control mode, which are suitable for a cigarette factory forming machine and a cigarette making machine. The existing air-conditioning cold water (with the temperature of T1) resources in a tobacco factory are input into the device, two types of cold water with the output temperatures of T1 and T2(T2 is more than T1) are output, and the cold water with the output temperature of T2 is obtained through a plate heat exchanger. The cold water with the output temperature of T1 can be controlled by an electromagnetic valve in an on/off mode, and the cold water with the output temperature of T2 can be controlled by a water pump and a proportional control valve in an on/off mode and a temperature adjusting mode. The cold supply device and the control mode can meet the cold water requirements of two temperatures of one forming machine or cigarette making machine and can replace two Freon cold water units installed on site.
Description
Technical Field
The invention relates to a cold supply device capable of providing two water temperatures and a control mode, in particular to a cold supply device and a control mode for a cigarette factory forming machine and a cigarette making machine.
Background
At present, a cigarette factory generally has a large number of forming machines and cigarette making machines, and with the update of the above devices, the same device needs two cooling water with different temperatures, and the common method is to install two Freon air-cooled water chilling units on the site of each forming machine or cigarette making machine device, so that the following problems exist:
1. the condenser of the air-cooled water chilling unit is dirty due to high dust concentration of a forming machine and a cigarette making machine working site, and the use and maintenance difficulty is high;
2. when the Freon air-cooled water chilling unit matched with the forming machine and the cigarette making machine fails, the maintenance time is long, and the production is influenced;
3. the Freon air-cooled water chilling unit is arranged on the spot of the forming machine and the cigarette making machine, so that the noise of the spot operation is increased.
Disclosure of Invention
The invention provides a cooling device, and also provides a control mode of the cooling device.
In order to achieve the purpose, the technical scheme provided by the invention is as follows: the existing air-conditioning cold water resources of a cigarette factory are utilized, air-conditioning cold water (with the temperature of T1) is input into the device, two types of cold water with the output temperatures of T1 and T2(T2 is more than T1) are output, and the cold water with the output temperature of T2 is obtained through a plate heat exchanger. The cold water with the output temperature of T1 is controlled by the PLC control electromagnetic valve to realize on/off control according to the request signal sent by the forming machine or the cigarette making machine, and the cold water with the output temperature of T2 is controlled by the PLC control variable frequency water pump and the electric proportional control valve to realize on/off control and temperature regulation control according to the set temperature and the request signal sent by the forming machine or the cigarette making machine.
Compared with the prior art, the invention has at least the following advantages:
1. the cold supply device and the control method can meet the requirements of two temperatures of cold water for one forming machine or cigarette making machine.
2. The cold supply device and the control mode can replace two Freon water chilling units installed on site, so that the installation site of a forming machine or a cigarette making machine is cleaner and tidier, and the equipment maintenance difficulty is reduced.
3. The cold supply device comprehensively utilizes the existing air-conditioning cold water resources of the cigarette factory, and the air-conditioning cold water system is fully reserved, so that the system has high operation reliability.
4. The device has simple structure, low failure probability and simple maintenance.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below.
FIG. 1 is a schematic view of a cooling device
Wherein: 1 box, 2 input cold source intakes, 3 input cold source exports, 4 communicating valves, 5 overhaul valves, 6 electronic proportional control valves, 7 overhaul valves, 8 plate heat exchangers, 9 overhaul valves, 10 blowoff valves, 11 closed water tank, 12 discharge valves, 13 temperature sensor, 14 overhaul valves, 15 output temperature is T2 cold water inlet, 16 output temperature is T2 cold water outlet, 17 overhaul valves, 18 variable frequency water pump, 19 output temperature is T1 cold water inlet, 20 overhaul valves, 21 output temperature is T1 cold water outlet, 22 overhaul valves, 23 solenoid valves, 24PLC control system
Detailed Description
The following describes embodiments of the present invention in detail. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
1. Installation: before the cold supply device is put into use, the cold supply device is subjected to all-dimensional heat preservation, the input cold source inlet and outlet pipelines are respectively butted with the inlet (2) and the outlet (3), the cold water inlet and outlet pipelines with the output temperature of T1 are respectively butted with the inlet (19) and the outlet (21), and the cold water inlet and outlet pipelines with the output temperature of T2 are respectively butted with the inlet (15) and the outlet (16). After the butt joint is completed, water can be injected into the system, the communication valve (4), the maintenance valves (5), (7), (9), (14), (17), (20) and (22) are opened, the drain valve (10) is closed, the exhaust valve (12) is opened slowly, and the system is closed after air is exhausted.
2. Cooling and controlling: cold water (with the temperature of T1) of an air conditioner is input into the device, and two kinds of cold water with the temperature of T1 and T2(T2 is more than T1) are output.
The cold water with the output temperature of T1 is supplied and controlled: the request signal sent by the forming machine or the cigarette making machine controls the electromagnetic valve (23) through the PLC control system (24) to realize the on/off control of cold water with the output temperature of T1, and the output temperature is equal to the cold water of the air conditioning system of the cigarette factory.
The cold water with the output temperature of T2 is supplied and controlled: the request signal sent by the forming machine or the cigarette making machine controls the variable frequency water pump (18) through the PLC control system (24) to realize the on/off control of cold water with the output temperature of T2 and the water volume supply. T2 (here, T2 is more than T1+2 ℃) can be set in the PLC control system (24), if the value detected by the temperature sensor (13) is more than T2, the opening degree of the electric proportional control valve (6) is increased through the PLC control system (24), if the value detected by the temperature sensor (13) is less than T2, the opening degree of the electric proportional control valve (6) is reduced through the PLC control system (24), and the water temperature in the closed water tank (11) is stabilized within the range of T2 +/-0.5 ℃.
3. Note that: during operation, the service valve (4) is opened for stabilizing the cold side pressure at the delivery temperature T2. Before the device is put into use, the device is required to be comprehensively insulated so as to avoid generating condensed water on site.
Claims (4)
1. The utility model provides a cold supply device and control mode, including box (1), input cold source import (2), input cold source export (3), communicating valve (4), maintenance valve (5) (7) (9) (14) (17) (20) (22), electronic proportional control valve (6), plate heat exchanger (8), blowoff valve (10), seal water tank (11), discharge valve (12), temperature sensor (13), output temperature is T2 cold water inlet (15), output temperature is T2 cold water outlet (16), variable frequency water pump (18), output temperature is T1 cold water inlet (19), output temperature is T1 cold water outlet (21), solenoid valve (23), PLC control system (24), its characterized in that: the communication valve (4), the maintenance valves (5), (7), (9), (14), (17), (20), (22), the electric proportional control valve (6), the plate heat exchanger (8), the blow-off valve (10), the closed water tank (11), the exhaust valve (12), the temperature sensor (13), the variable-frequency water pump (18), the electromagnetic valve (23) and the PLC control system (24) are all installed in the box body (1).
2. A cold supply device and control mode according to claim 1, characterized in that the input cold source inlet (2) is connected with the cold water outlet (21) through a pipeline, and the pipeline is provided with a maintenance valve (22) and an electromagnetic valve (23); the input cold source outlet (3) is communicated with the cold water inlet (19) through a pipeline, and the pipeline is provided with an overhaul valve (20); the input cold source inlet (2) is communicated with the plate heat exchanger (8) through a pipeline, and is communicated with the input cold source outlet (3) through the pipeline after passing through the interior of the plate heat exchanger (8), the pipeline between the input cold source inlet (2) and the plate heat exchanger (8) is sequentially provided with an overhaul valve (5) and an electric proportional control valve (6), and the pipeline between the input cold source outlet (3) and the plate heat exchanger (8) is provided with an overhaul valve (7); the cold water inlet (15) is sequentially communicated with the plate heat exchanger (8), the closed water tank (11), the variable frequency water pump (18) and the cold water outlet (16) through pipelines, an overhaul valve (14) is arranged on the pipeline between the cold water inlet (15) and the plate heat exchanger (8), an overhaul valve (9) is arranged on the pipeline between the plate heat exchanger (8) and the closed water tank (11), and an overhaul valve (17) is arranged on the pipeline between the variable frequency water pump (18) and the cold water outlet (16); the pipeline between the maintenance valve (9) and the plate heat exchanger (8) is selected to be one point, the pipeline between the maintenance valve (20) and the input cold source outlet (3) is selected to be the other point, the two points are communicated through the pipeline, and the pipeline is provided with the maintenance valve (4).
3. A cold supply device and control method according to claim 2, characterized in that the bottom of the closed water tank (11) is provided with a sewage drainage pipeline and a sewage drainage valve (10), the top is provided with a temperature sensor (13), an exhaust pipeline and an exhaust valve (12), and the water intake pipe of the variable frequency water pump (18) is close to the bottom of the closed water tank (11).
4. A cooling device and control method according to claim 3, characterized in that the PLC control system (24) controls the electric proportional control valve (6), the variable frequency water pump (18) and the solenoid valve (23) according to the feedback information of the temperature sensor (13) and the demand information of the forming machine or the cigarette making machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010130924.9A CN111296887A (en) | 2020-02-28 | 2020-02-28 | Cold supply device and control mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010130924.9A CN111296887A (en) | 2020-02-28 | 2020-02-28 | Cold supply device and control mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111296887A true CN111296887A (en) | 2020-06-19 |
Family
ID=71159503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010130924.9A Pending CN111296887A (en) | 2020-02-28 | 2020-02-28 | Cold supply device and control mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111296887A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH049563A (en) * | 1990-04-26 | 1992-01-14 | Koufu Nippon Denki Kk | Cooling device |
| CN203100279U (en) * | 2013-02-22 | 2013-07-31 | 合肥天鹅制冷科技有限公司 | Water cooling device with multiple temperature control circuits |
| CN203731767U (en) * | 2013-12-27 | 2014-07-23 | 上海烟草集团有限责任公司 | Cooling device for cigarette making machine |
| CN108444123A (en) * | 2018-04-12 | 2018-08-24 | 合肥天鹅制冷科技有限公司 | Adapt to the wide multi-temperature feed flow unit of ambient temperature range |
| CN208254049U (en) * | 2018-05-03 | 2018-12-18 | 武汉汉立制冷科技股份有限公司 | A kind of cooling water central cooling multi-temperature zone constant temperature processing unit |
-
2020
- 2020-02-28 CN CN202010130924.9A patent/CN111296887A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH049563A (en) * | 1990-04-26 | 1992-01-14 | Koufu Nippon Denki Kk | Cooling device |
| CN203100279U (en) * | 2013-02-22 | 2013-07-31 | 合肥天鹅制冷科技有限公司 | Water cooling device with multiple temperature control circuits |
| CN203731767U (en) * | 2013-12-27 | 2014-07-23 | 上海烟草集团有限责任公司 | Cooling device for cigarette making machine |
| CN108444123A (en) * | 2018-04-12 | 2018-08-24 | 合肥天鹅制冷科技有限公司 | Adapt to the wide multi-temperature feed flow unit of ambient temperature range |
| CN208254049U (en) * | 2018-05-03 | 2018-12-18 | 武汉汉立制冷科技股份有限公司 | A kind of cooling water central cooling multi-temperature zone constant temperature processing unit |
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Application publication date: 20200619 |
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| RJ01 | Rejection of invention patent application after publication |