CN113915694A - Air conditioning system for cigarette factory cigarette receiving and wrapping workshop - Google Patents
Air conditioning system for cigarette factory cigarette receiving and wrapping workshop Download PDFInfo
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- CN113915694A CN113915694A CN202010654943.1A CN202010654943A CN113915694A CN 113915694 A CN113915694 A CN 113915694A CN 202010654943 A CN202010654943 A CN 202010654943A CN 113915694 A CN113915694 A CN 113915694A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Central Air Conditioning (AREA)
Abstract
The invention discloses an air conditioning system for a cigarette factory package receiving workshop, which comprises more than four control units consisting of a combined air processing unit 1, an air supply main pipe 2, an air supply branch pipe 3, an air supply outlet branch pipe 4, a cyclone air feeder 5, a return air main pipe 6, a return air inlet branch pipe 7 and a return air inlet 8, wherein every two control units are combined to control a rectangular joint area, the air supply main pipe 2 is respectively arranged at two sides of the width direction of the joint area or at the same side of the length direction, and the air supply outlet branch pipe 4 which is arranged along the length direction or the width direction of the area, is parallel and connected with each other, is parallel and crossed and hangs the cyclone air feeder 5 downwards is arranged on each air supply main pipe 2; the two main return air pipes 6 are parallel to each other and are positioned in the middle of the length or width direction of the area, and the branch return air inlet pipes 7 and the return air inlets 8 are positioned below the main return air pipes. The invention can shorten the distance of the air flow of the returned air, improve the temperature and humidity precision control of the air conditioner, and can also open only one control unit for operation, thereby greatly reducing the operation energy consumption and the maintenance cost.
Description
Technical Field
The invention belongs to the technical field of air conditioning devices, and particularly relates to an air conditioning system for a cigarette receiving and packing workshop of a cigarette factory.
Background
The cigarette receiving workshop of the cigarette factory has the following characteristics: 1. large areaAnd high in height. The area of a workshop is 5000-18000 m according to the production scale of 30-150 ten thousand boxes per year2The width is 55-100 m, the length is 90-230 m and above, and the height of a suspended ceiling below the roof truss is about 6.1 m; 2. the heat dissipation capacity is large. Only a process equipment cigarette (cigarette) receiving (nozzle) packaging unit needs to be provided with 9-45 sleeves according to the scale in a workshop, and the installation power can reach 1000-5000 kW, so that the heat productivity of equipment in the workshop is extremely high; 3. the air supply quantity of the air conditioner needed in summer is large. The air conditioner air volume needed in summer is large due to the huge heat productivity of the process equipment, and generally 40-190 km is needed3About/h, the number of air changes is more than 10 times/hour. To achieve such air output, the number of air conditioning units is 3 to 14; 4. the air supply amount of the air conditioner required in winter is small. The heating load of the air conditioning unit in winter is small due to the constant heat productivity of the process equipment, and the air volume of the air conditioner required is less than half of that in summer; 5. the motor power required by the air conditioning unit is large. Each set of air conditioning unit generally has 12-14 ten thousand meters3The air supply amount is/h, so the sum of the power of the air supply and return fan motors is more than 100 kW; 6. the air conditioning requirement is high. The cigarette rolling and packaging requires constant temperature and constant humidity, the annual room temperature precision requirement is 22-27 +/-2 ℃, and the relative humidity precision requirement is 60 +/-5%, so that the requirement on the air conditioner adjustment precision is high.
At present, the air conditioning system used in the roll-to-roll packaging workshop calculates the required maximum air conditioning air volume according to the maximum air conditioning load when the process equipment of the workshop is fully opened in summer, and determines the number of sets of combined air conditioning units, namely the number of the air conditioning systems according to the maximum air conditioning load. Each air conditioning system corresponds to an independent area and is independently responsible for temperature and humidity control of the air of the workshop in the area; air return pipes of the air conditioning systems in the independent areas are uniformly arranged along the length or width direction of a workshop, air return pipes and air return ports are intensively arranged in the independent areas, the air conditioning air return ports and the air conditioning air return ports are both arranged at the height of a suspended ceiling and supply air and return air downwards, the air supply ports use double-layer shutter air ports or conventional air diffusers, and the air return ports use single-layer shutter air ports; the whole rolling and wrapping workshop air conditioner consists of a plurality of independent regional air conditioning systems, and the independent regional air conditioning systems must simultaneously and jointly operate to jointly ensure the temperature and humidity requirements of the whole workshop air conditioner.
Although the characteristics of the rolling and packing workshop and the air conditioning technology which uses the independent area air conditioning system and the multi-system combined operation can meet the requirement of the uniformity of the air conditioning of the whole rolling and packing workshop and the requirement of the maximum load production of the workshop. However, the following disadvantages are always existed in the actual operation process: 1) when the number of process equipment started in summer is reduced or the outdoor temperature is reduced, the air conditioner load is reduced, and the heat dissipation capacity of a workshop is reduced, the total air volume of the air conditioner actually required by the workshop should be reduced, but if one or more independent regional air conditioning systems are stopped, the regions have no temperature and humidity control, so that the product quality is influenced, and therefore air conditioning units in all the regions must be started to operate jointly at the same time, and waste is caused; 2) when the outdoor temperature is reduced and the indoor air conditioning load is small in winter, the air conditioning units in all the areas also need to be started to run jointly at the same time to ensure the temperature and humidity requirements and waste; 3) in any season and at any time all the year, the air conditioning units in all the areas need to be started to operate jointly, the energy consumption of equipment and system operation is high, the abrasion is large, and the time for maintenance is not needed.
Disclosure of Invention
The invention aims to provide an air conditioning system which can meet the requirements of a rolling and packing workshop on the temperature and the humidity of an air conditioner, save a large amount of operation energy consumption and ensure that an air conditioning unit can intermittently operate and is convenient to maintain, aiming at the defects of the prior art.
The invention provides an air conditioning system for a cigarette receiving workshop of a cigarette factory, which comprises more than four control units consisting of a combined air processing unit, a main air supply pipe, a branch air supply outlet pipe, a cyclone air feeder, a main return air pipe, a branch return air inlet pipe and a return air inlet, it is characterized in that the control units in the air conditioning system are combined in pairs to control a joint area, the joint area is a rectangular area, one end of each air supply main pipe on two combined air handling units in the two control units enters the area and then is respectively arranged on two sides of the width direction or the same side of the length direction, each air supply main pipe is parallelly connected with a plurality of air supply branch pipes arranged along the length direction or the width direction of the area, the air supply branch pipes on the two air supply main pipes are arranged in parallel and in a crossed manner, and the cyclone air feeders are uniformly distributed below the air supply outlet branch pipes; one end of each of the two return air main pipes on the air return main pipe extends into the middle of the area from two sides of the width direction of the area or the same side of the length direction of the area respectively after entering the area, and then the return air main pipes are parallel to each other and positioned in the middle of the length direction or the width direction of the area at the same time, and the return air inlet branch pipes and the return air inlets connected to the return air main pipes are uniformly distributed below each return air main pipe positioned in the middle of the area.
In the above air conditioning system, the air supply branch pipe penetrates through the length direction or the width direction of the entire joint area.
In the air conditioning system, the return air main pipe penetrates through the length direction or the width direction of the whole combined area.
The air conditioning system can be divided into a plurality of joint areas according to the size of a cigarette receiving and packing workshop of a cigarette factory, and two control units are arranged in each joint area.
The working principle of the air conditioning system for the cigarette receiving workshop of the cigarette factory is illustrated by taking a figure 1 as an example and is as follows:
after the air is subjected to heat and humidity treatment such as filtration, cooling dehumidification, heating, humidification and the like by two combined air treatment units in two control units of each joint area, the air conditioning air flows downwards to a working area through two air supply main pipes arranged along the width direction of the joint area and a plurality of air supply branch pipes (the air supply branch pipes of the two systems are mutually parallel and are arranged in an odd-even number manner, the lengths of the air supply branch pipes penetrate through the joint area) which are connected and are arranged in parallel and in a crossed manner along the length direction of the joint area, and then a plurality of uniformly arranged cyclone air feeders connected with the air supply branch pipes downwards; the air-conditioning return air flow sequentially passes through a plurality of return air inlets and return air inlet branch pipes which are arranged in parallel and adjacent along the length direction of the joint area in the middle of the joint area, enters two adjacent return air main pipes which are arranged in parallel (the length of the return air main pipe penetrates through the joint area), and then returns to the respective combined air treatment units through the return air main pipes for treatment. The temperature and the humidity of the combined area can be adjusted by repeating the steps.
When the temperature-sensing controller of the cyclone air feeder automatically senses the temperature of the air flow, the adjustable blades can be automatically driven according to two gears in winter and summer to change the air feeding angle of the blades. When the air supply temperature in summer is less than or equal to 17 ℃, the angle of the blades can be automatically adjusted to a cooling mode, and the air flow is blown out horizontally; when the air supply temperature is more than or equal to 27 ℃ in winter, the angle of the blades can be automatically adjusted to a heat supply mode, and the air flow is blown out in the vertical direction.
Two sets of combined air treatment units of two control units in the combined area can be simultaneously combined to operate, and only one set of combined unit can be started to operate, so that the requirements of the combined area on temperature and humidity regulation of the air conditioner under different working conditions are met.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention adopts the technology that the control units are combined in pairs to control a combined area, a plurality of air supply branch pipes and cyclone air blowers which are connected with two combined air treatment units in the two control units are arranged in parallel along the length direction or the width direction of the area and are staggered in an odd-even number manner, and a return air main pipe, a return air inlet and a return air inlet branch pipe which are connected with the two combined air treatment units are also adjacently arranged in parallel along the length direction or the width direction of the middle part of the area, so that the distance of return air flow of the air conditioning system can be shortened, the temperature difference of the return air flow is reduced, the temperature and humidity precision control of the air conditioner is improved, and the temperature and humidity precision of the air conditioner in the whole combined area can be ensured even if only one set of control units is started to operate.
2. Due to the adoption of the arrangement mode of the air supply and return air pipes, when the load of a fully-opened air conditioner of process equipment in a workshop is the maximum in summer, two control units in each combined area run simultaneously, the air exchange frequency can reach more than 10 times/hour, and the requirement of the air conditioner load on ensuring the temperature and humidity regulation of the air conditioner can be eliminated; when the number of the process equipment is reduced or the outdoor air temperature is reduced, the air conditioning load is reduced, so that the air conditioning air volume requirement is reduced, only one control unit can be started to operate, and the air exchange frequency can reach more than 5 times/hour (according to the relevant specifications, the air exchange frequency of more than 5 times/hour can meet the air conditioning temperature and humidity precision requirement of the workshop). Even when the number of the process equipment is reduced in winter (including partial time periods in spring and autumn) or in the whole year, only one of the two control units in each joint area can be started to operate, only half of the number of the air conditioning systems is required to be started in the whole rolling and packing workshop, and the total air supply quantity is reduced to one half of the original total air supply quantity, so that compared with the mode that the original control unit only correspondingly controls one independent area, the whole rolling and packing workshop can save more than 30-60% of operation energy consumption all the year around, and can achieve good effects of energy conservation and cost reduction.
3. The air supply of the air conditioner adopts the cyclone air feeder, and the temperature-sensing control element can automatically drive the adjustable blade in the air feeder according to the temperature of the air supply and adjust the corresponding angle to the cold supply mode or the heat supply mode, so that the phenomena that the blade of the air inlet cannot be adjusted in the past, hot air is not easily fed downwards in winter, the airflow of the returned air is short-circuited, and the energy consumption is increased are changed, and compared with an electric adjusting air inlet, the temperature-sensing control element does not need a power supply and electric control equipment, and the air conditioner has the advantages of energy conservation, environmental protection, stable performance, simplicity and convenience in installation, maintenance-free and the like.
4. The air supply branch pipes and the return air main pipes of two independent control units in one joint area are uniformly arranged along the length direction or the width direction of the area, so that air supply and return openings arranged on a suspended ceiling are orderly and orderly arranged along the length direction of the joint area, and are matched with a plurality of lamp belts arranged along the length direction of the joint area, so that the whole joint area, including a whole workshop, is more attractive and neat.
5. Because the invention adopts the technology of combining the area dual control units, the energy-saving effect is obvious, and the invention is particularly suitable for being popularized and used in most cigarette factory cigarette receiving and packing workshops.
Drawings
Fig. 1 is a schematic view of the arrangement of the present invention used in a cigarette factory cigarette receiving workshop.
Fig. 2 is an enlarged schematic view of the overall structure of the two control units and the arrangement of the controlled union region in fig. 1.
Figure 3 is a schematic view of another arrangement of the present invention for use in a cigarette factory cigarette tipping workshop.
Fig. 4 is an enlarged schematic view of the overall structure of the two control units and the arrangement of the controlled union region in fig. 3.
In the figure, 1-combined air treatment unit; 2-air supply main pipe; 3-air supply branch pipe; 4-branch pipe of air supply outlet; 5-cyclone air blower; 6-air return main pipe; 7-return air inlet branch pipe; 8-air return inlet.
Detailed Description
The present invention is further described by the following embodiments, which are not to be construed as limiting the scope of the present invention, and the insubstantial modifications and variations thereof by those skilled in the art based on the above disclosure and design concept shall also fall within the scope of the present invention.
Example 1
The air conditioning system for the cigarette factory package receiving workshop provided by the embodiment comprises more than four control units consisting of a combined air processing unit 1, an air supply main pipe 2, an air supply branch pipe 3, an air supply outlet branch pipe 4, a cyclone air feeder 5, a return air main pipe 6, a return air inlet branch pipe 7 and a return air inlet 8, and can be specifically arranged in a mode shown in the attached drawing 1 according to the condition of the package receiving workshop.
The control unit in the air conditioning system is a combined area controlled by two combined units, the combined area is a rectangular area, one end of a main air supply pipe 2 on two combined air handling units 1 in the two control units enters the area and then is respectively arranged on two sides of the area in the width direction, a plurality of air supply branch pipes 3 arranged along the length direction of the area are parallelly and parallelly connected to each main air supply pipe 2, the air supply branch pipes 3 on the two main air supply pipes 2 are mutually parallelly and crossly arranged, and all the air supply branch pipes 3 penetrate through the length direction of the whole combined area. One ends of two return air main pipes 6 on two combined air handling units 1 in the two control units respectively extend into the middle of the area from one side of the width direction of the area, are parallel to each other and are positioned in the middle of the length direction of the area at the same time, and both penetrate through the length direction of the whole combined area. As shown in fig. 2.
The combined air processing unit 1 is a unit consisting of a return air filtering section, a return fan section, a fresh air exhausting section, a filtering section, a surface cooling section, a heating section, a humidifying section, a blower section and a connecting air valve, and is used for realizing hot and humid process treatment and temperature and humidity adjusting processes of air return, fresh air exhausting amount adjustment, filtering, cooling dehumidification, heating, humidification and the like.
The cyclone air blowers 5 are uniformly distributed below the air supply outlet branch pipes 4. The commercially available cyclone air blower 5 is selected as the air blower because the temperature-sensing control element arranged therein can monitor the change of the air supply temperature and can automatically drive the adjustable blades to adjust the opening and closing angle of the adjustable blades to a cooling or heating mode according to the change of the air supply temperature, so that the air supply flow can be more accurately sent to a working area.
The return air inlet branch pipes 7 and the return air inlets 8 connected with the return air inlet branch pipes are uniformly distributed below each return air main pipe 6 in the middle of the combined area. The return air opening 8 is a commonly used single-layer louver opening with an adjusting valve.
When the process equipment of the rolling and packing workshop is fully opened in summer, the air volume of the air conditioner required at the moment is the largest, the two combined air treatment units 1 in the two control units in the joint area are all required to be opened, the combined air treatment units 1 send out the cold air flow of the air conditioner subjected to heat and humidity treatment through the main air supply pipe 2, the branch air supply pipe 3 and the cyclone air feeder 5 in sequence, and the air conditioner load is jointly eliminated so as to ensure the temperature and humidity requirements of the air conditioner in the joint area. At the moment, a temperature-sensing control element in the cyclone air feeder 5 can automatically drive the adjustable blade to adjust the angle to a cooling mode, so that air flow is blown out in the horizontal direction and is delivered to a working area under the action of gravity; the return air flow returns to the combined air processing unit 1 through the return air inlet 8, the return air inlet branch pipe 7 and the return air main pipe 6 in sequence under the negative pressure condition formed by the operation of the return air fan in the combined air processing unit 1, and is treated, namely recycled.
When the number of the starting process equipment of the rolling and packing workshop is reduced or the outdoor air temperature is reduced in a time-saving manner, and the air conditioning load is reduced, so that the air conditioning air volume requirement is reduced, only one control unit can be started to operate, and the air conditioning load can be independently eliminated, so that the air conditioning temperature and humidity requirement in a combined area is ensured.
When the rolling and packing workshop needs to preheat the workshop before the process equipment is started in winter, or the quantity of the started process equipment is reduced, the heat productivity of the equipment is reduced, and heat and moisture are needed to be supplemented to the workshop to meet the requirements of the temperature and the humidity of an air conditioner, because the combined air treatment unit has large heating and humidifying capacity, the air supply temperature difference is increased, the air supply quantity of the required air conditioner is reduced, and therefore, the operation can be realized only by starting any one control unit. The temperature-sensing controller of the cyclone air feeder can automatically drive the adjustable blades to adjust the angle to a heat supply mode, and the airflow is blown out in the vertical direction and is sent to a working area by means of wind pressure.
Example 2
The air conditioning system for the cigarette factory package receiving workshop provided by the embodiment comprises more than 4 control units consisting of a combined air processing unit 1, an air supply main pipe 2, an air supply branch pipe 3, an air supply outlet branch pipe 4, a cyclone air feeder 5, a return air main pipe 6, a return air inlet branch pipe 7 and a return air inlet 8, and is specifically another arrangement in a mode shown in the attached drawing 3.
In the figure, 1-combined air treatment unit; 2-air supply main pipe; 3-air supply branch pipe; 4-branch pipe of air supply outlet; 5-cyclone air blower; 6-air return main pipe; 7-return air inlet branch pipe; 8-air return inlet.
The control unit in the air conditioning system is still a combined area controlled by two combined units, the combined area is a rectangular area, one end of each air supply main pipe 2 on two combined air handling units 1 in the two control units enters the area and then is respectively arranged on the same side of the length direction of the area, each air supply main pipe 2 is parallelly and parallelly connected with a plurality of air supply branch pipes 3 arranged along the width direction of the area, the air supply branch pipes 3 on the two air supply main pipes 2 are mutually parallelly and crossly arranged, and all the air supply branch pipes 3 penetrate through the width direction of the whole combined area. One ends of two return air main pipes 6 on two combined air handling units 1 in the two control units respectively extend into the middle of the area from one side of the length direction of the area, are parallel to each other and are positioned in the middle of the width direction of the area at the same time, and both penetrate through the width direction of the whole combined area. As shown in fig. 4.
The rest is completely the same as example 1, and thus, description thereof is omitted.
Claims (3)
1. An air conditioning system for a cigarette factory roll-to-roll workshop comprises more than four control units consisting of combined air treatment units (1), air supply main pipes (2), air supply branch pipes (3), air supply outlet branch pipes (4), cyclone air feeders (5), air return main pipes (6), air return branch pipes (7) and air return openings (8), and is characterized in that the control units in the air conditioning system are combined and controlled in pairs to form a combined area, the combined area is a rectangular area, one end of each air supply main pipe (2) on two combined air treatment units (1) in the two control units is respectively arranged on two sides in the width direction or on the same side in the length direction after entering the area, each air supply main pipe (2) is parallelly and parallelly connected with a plurality of air supply branch pipes (3) arranged along the length direction or the width direction of the area, and the air supply branch pipes (3) on the two air supply main pipes (2) are mutually parallelly and crossly arranged, the cyclone air blowers (5) are uniformly distributed below the branch pipes (4) of the air supply outlets; one ends of the two return air main pipes (6) on the return air main pipes extend into the middle of the area from two sides of the width direction of the area or the same side of the length direction of the area respectively after entering the area, then the return air main pipes are parallel to each other and positioned in the middle of the length direction or the width direction of the area at the same time, and the return air inlet branch pipes (7) and the return air inlets (8) connected with the return air inlet branch pipes are uniformly distributed below each return air main pipe (6) positioned in the middle of the area.
2. Air conditioning system for a cigarette factory cigarette making and packing workshop according to claim 1, characterized in that the length of the air supply branch pipes (2) in the air conditioning system runs through the length or width direction of the whole joint area.
3. Air conditioning system for a cigarette factory cigarette making and packing workshop according to claim 1 or 2, characterized in that the length of the main return air pipe (6) in the air conditioning system extends throughout the length or width direction of the whole joint area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010654943.1A CN113915694A (en) | 2020-07-09 | 2020-07-09 | Air conditioning system for cigarette factory cigarette receiving and wrapping workshop |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010654943.1A CN113915694A (en) | 2020-07-09 | 2020-07-09 | Air conditioning system for cigarette factory cigarette receiving and wrapping workshop |
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| CN113915694A true CN113915694A (en) | 2022-01-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115962524A (en) * | 2022-11-30 | 2023-04-14 | 山东中烟工业有限责任公司 | Tobacco shred-making air-conditioning gradient air supply device and using method thereof |
-
2020
- 2020-07-09 CN CN202010654943.1A patent/CN113915694A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115962524A (en) * | 2022-11-30 | 2023-04-14 | 山东中烟工业有限责任公司 | Tobacco shred-making air-conditioning gradient air supply device and using method thereof |
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