Air conditioning unit and tobacco production workshop
By using hot water generated by high-temperature heat pumps in the air conditioning unit to heat up the air, the problem of the lack of heating function of the existing air conditioning units is solved, flexible temperature control is achieved, system structure is simplified, and cost and construction cycle are reduced.
Patent Information
- Application Number
- CN202421828249.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The existing air-conditioning units lack the heating function in the manual leaf selection area of the wire making workshop, which makes it difficult to control the temperature between 18 and 27℃. The addition of steam heating section requires the disassembly and reassembly of the unit, which is high in cost and long construction cycle.
An air conditioning unit is designed to use the hot water generated by the high-temperature heat pump as a heat source to provide hot water into the meter cooling coil through the second pipeline to achieve air heating without adding heating sections or laying steam pipes.
The air conditioning unit has been realized, the system structure is simplified, the cost and construction cycle is reduced, and the transformation of existing units and the safety and maintenance of steam pipelines are avoided.
Smart Images
Figure CN222911846U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of air-conditioning units, and particularly to an air-conditioning unit and a tobacco production workshop. Background Art
[0002] In the manual leaf selection area of the silk reeling workshop, an air-conditioning unit can be equipped, but this equipment has no heating section and does not have the function of raising the temperature.
[0003] To ensure the comfort of operators, it is best to control the temperature in the manual leaf selection area between 18°C and 27°C, which requires adding a temperature-raising function. In a specific process of an industrial air-conditioning system in related technologies: fresh air or return air passes through a filter section, a surface cooler section (with chilled water as the medium), a heating section (with steam as the medium), and a humidifying section (with steam as the medium), and finally the adjusted air is transported to the workshop through the air supply section.
[0004] This method uses steam for temperature raising, which will consume a large amount of manpower and material resources. Specifically, if a heating section needs to be added to the unit, the existing unit needs to be disassembled and reassembled, resulting in a significant increase in cost; moreover, an additional steam pipeline needs to be laid for the unit, which not only increases the installation complexity but also requires considering the safety and maintenance of the pipeline. Therefore, this temperature-raising method has a long construction period and affects production. Summary of the Utility Model
[0005] Some embodiments of the present disclosure provide an air-conditioning unit and a tobacco production workshop, which can avoid modifying the original unit and improve the convenience of installation.
[0006] On the one hand, the present disclosure provides an air-conditioning unit, including:
[0007] A refrigerator configured to provide chilled water;
[0008] A surface cooler with surface cooling coils disposed therein;
[0009] A first pipeline configured to supply chilled water into the surface cooling coils, and a first on-off valve is provided on the first pipeline;
[0010] A second pipeline with a heat pump and a second on-off valve provided thereon, and the heat pump is configured to heat water and supply it into the surface cooling coils through the second pipeline.
[0011] In some embodiments, the first pipeline and the second pipeline have a common section, the common section is connected to the surface cooler, the first pipeline further includes a first branch section, the second pipeline further includes a second branch section, the refrigerator is connected to one end of the first branch section away from the common section, the first on-off valve is disposed on the first branch section, and the heat pump and the second on-off valve are disposed on the second branch section.
[0012] In some embodiments, the second on-off valve is provided downstream of the heat pump.
[0013] In some embodiments, the air conditioning unit further includes: a water pump provided on the second pipeline, and the water pump is configured to provide a driving force for the water in the second pipeline.
[0014] In some embodiments, the air conditioning unit further includes: a water tank provided on the second pipeline, the water tank is provided downstream of the heat pump, and is configured to store the hot water generated by the heat pump.
[0015] In some embodiments, the air conditioning unit further includes: a water pump and a water tank provided on the second pipeline, and the heat pump, the water tank, the water pump and the second on-off valve are arranged in sequence along the flow direction of the water.
[0016] In some embodiments,
[0017] When the ambient temperature is higher than the preset temperature, the first on-off valve is in the on state and the second on-off valve is in the off state; and / or
[0018] When the ambient temperature is not higher than the preset temperature, the first on-off valve is in the off state and the second on-off valve is in the on state.
[0019] In some embodiments, the water in the second pipeline comes from the working area or an underground water storage tank.
[0020] On the other hand, the present disclosure provides a tobacco production workshop, including the air conditioning unit of the above embodiments.
[0021] Based on the above technical solutions, the present disclosure has at least the following beneficial effects:
[0022] The air conditioning unit of the embodiments of the present disclosure uses the hot water generated by the high-temperature heat pump as a heat source, has a simple system structure, can replace high-temperature steam to heat the air, does not need to add a heating section to the unit, and thus does not need to disassemble and reassemble the existing unit, can maintain the integrity of the existing unit, and also does not need to lay additional steam pipelines, can reduce the complexity of the system, and does not need to consider the safety and maintenance of the high-temperature steam pipeline. Therefore, the demand for the air conditioning unit to heat the air can be conveniently realized, the construction period is short, the shutdown time of the unit is short, production is not affected, and the cost can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The drawings described herein are used to provide a further understanding of the present disclosure, and constitute a part of this application. The schematic embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the drawings:
[0024] Figure 1 It is a schematic diagram of the system structure of some embodiments of the air conditioning unit of the present disclosure.
[0025] It should be understood that the dimensions of the various parts shown in the drawings are not drawn to actual scale. In addition, the same or similar reference numerals denote the same or similar components.
[0026] Description of Reference Numerals
[0027] 1. Surface cooler; 2. Common section; 3. Second branch section; 4. First on-off valve; 5. Second on-off valve; 6. Water pump; 7. Water tank; 8. Heat pump; 9. First branch section. Detailed Embodiments
[0028] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the drawings. The description of the exemplary embodiments is merely illustrative and in no way limits the present disclosure and its application or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, the compositions of materials, numerical expressions and values set forth in these embodiments should be construed as merely exemplary and not as limitations.
[0029] The terms "first", "second" and similar terms used in the present disclosure do not denote any order, quantity or importance, but are only used to distinguish different parts. Words such as "including" or "comprising" mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.
[0030] In the present disclosure, when it is described that a specific device is located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device. When it is described that a specific device is connected to other devices, the specific device may be directly connected to the other devices without an intermediate device, or may not be directly connected to the other devices and have an intermediate device.
[0031] All terms used in the present disclosure (including technical terms or scientific terms) have the same meaning as understood by those of ordinary skill in the art to which the present disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as those, should be construed as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless specifically defined as such herein.
[0032] Techniques, methods, and devices that are known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and devices should be regarded as part of the specification.
[0033] Based on the various embodiments of the present disclosure above, in the absence of an express negation or conflict, the technical features of one embodiment can be beneficially combined with one or more other embodiments.
[0034] The present disclosure provides an air-conditioning unit, as Figure 1 shown. In some embodiments, the air-conditioning unit includes:
[0035] A chiller configured to provide chilled water;
[0036] A finned-tube heat exchanger 1, in which a finned-tube coil is provided;
[0037] A first pipeline configured to supply chilled water into the finned-tube coil, and a first on-off valve 4 is provided on the first pipeline;
[0038] A second pipeline, on which a heat pump 8 and a second on-off valve 5 are provided, and the heat pump 8 is configured to heat water and supply it into the finned-tube coil through the second pipeline.
[0039] Among them, a medium can be introduced into the finned-tube coil of the finned-tube heat exchanger 1 for heat exchange with air. The material of the finned-tube coil should be able to withstand both the low temperature of chilled water and the high temperature of hot water, and has a wide temperature tolerance range.
[0040] Both the first on-off valve 4 and the second on-off valve 5 can be set as solenoid valves or manual control valves, etc. The heat pump 8 is a device that transfers the heat energy of a low-temperature heat source to a high-temperature heat source, and can heat the introduced water to supply the heated water into the finned-tube coil through the second pipeline, thereby raising the air temperature.
[0041] This embodiment uses the hot water generated by a high-temperature heat pump as the heat source. The system structure is simple, can replace high-temperature steam for heating air, does not require adding a heating section to the unit, and thus does not require disassembling and reassembling the existing unit, can maintain the integrity of the existing unit, and also does not require laying additional steam pipelines, can reduce the complexity of the system, and does not need to consider the safety and maintenance of high-temperature steam pipelines. Thus, the requirement of the air-conditioning unit for heating air can be conveniently realized, the construction period is short, the shutdown time of the unit is short, production is not affected, and the cost can be reduced.
[0042] Moreover, by providing the first pipeline and the second pipeline, with the first on-off valve 4 provided on the first pipeline and the second on-off valve 5 provided on the second pipeline, the on-off control of the first pipeline and the second pipeline can be independent of each other, and it is possible to select whether to introduce chilled water or hot water into the finned-tube heat exchanger 1 according to the ambient temperature requirement to adjust the air to an appropriate temperature, and the control is simple.
[0043] In some embodiments, as Figure 1 shown, the first pipeline and the second pipeline have a common section 2, the common section 2 is connected to the surface cooler 1, the first pipeline further includes a first branch section 9, the second pipeline further includes a second branch section 3, the refrigerator is connected to one end of the first branch section 9 away from the common section 2, the first on-off valve 4 is arranged on the first branch section 9, and the heat pump 8 and the second on-off valve 5 are arranged on the second branch section 3.
[0044] This embodiment sets a part of the common section 2 for the first pipeline and the second pipeline. Such a pipeline structure can reduce the required length of the pipeline, reduce the cost of setting the heating function, and also facilitate the connection to the surface cooler 1 without modifying the structure of the surface cooler 1.
[0045] In some embodiments, the second on-off valve 5 is arranged downstream of the heat pump 8. Such a structure is beneficial to enabling the heat pump 8 to work even when it is not necessary to supply hot water to the surface cooler 1, that is, when the second on-off valve 5 is in the off state. The heated water can be stored for subsequent use or meet the demand for a large amount of hot water.
[0046] In some embodiments, the air-conditioning unit further includes: a water pump 6 arranged on the second pipeline. The water pump 6 can be arranged between the heat pump 8 and the second on-off valve 5, and the water pump 6 is configured to provide driving force for the water in the second pipeline. By arranging the water pump 6 on the second pipeline, the water heated by the heat pump 8 can enter the surface cooler 1 sufficiently with sufficient driving force, thereby improving the heat exchange efficiency.
[0047] In some embodiments, the air-conditioning unit further includes: a water tank 7 arranged on the second pipeline. The water tank 7 is arranged downstream of the heat pump 8 and is configured to store the hot water generated by the heat pump 8. For example, the water tank 7 is arranged between the heat pump 8 and the second on-off valve 5.
[0048] This embodiment can still make the heat pump 8 work to store water when the second on-off valve 5 is in the off state by arranging the water tank 7, or can still store the excess hot water when the current hot water consumption is small, so as to better meet the requirements of subsequent use and improve the air heat exchange efficiency.
[0049] In some embodiments, the air-conditioning unit further includes: a water pump 6 and a water tank 7 arranged on the second pipeline. The heat pump 8, the water tank 7, the water pump 6 and the second on-off valve 5 are arranged in sequence along the water flow direction. Thus, after the heat pump 8 heats the water in the second pipeline, it can be stored in the water tank 7, and the water in the water tank 7 can be pumped out by the water pump 6 and supplied to the surface cooler 1. Arranging the second on-off valve 5 at the most downstream can still not affect the heat pump 8 from generating hot water when it is in the off state.
[0050] In some embodiments, when the ambient temperature is higher than the preset temperature, the first on-off valve 4 is in the on state and the second on-off valve 5 is in the off state; and / or when the ambient temperature is not higher than the preset temperature, the first on-off valve 4 is in the off state and the second on-off valve 5 is in the on state.
[0051] For example, in summer when the ambient temperature is relatively high, the first on-off valve 4 is in the on state, chilled water enters the surface cooler coil, the second on-off valve 5 is in the off state, and the water pump 6 stops working to cut off the hot water path. When hot air flows through the surface cooler coil, the heat of the air is absorbed by the chilled water, which can keep the ambient temperature at a lower level.
[0052] In winter when the ambient temperature is relatively low, the first on-off valve 4 is in the off state to stop supplying chilled water, the second on-off valve 5 is in the on state, and the water pump 6 is in the working state to connect the hot water path. When cold air flows through the surface cooler coil, the heat of the hot water is absorbed by the air, which can increase the ambient temperature. The water passes through the heat pump 8 and can be heated to 60 - 80 °C, stored in the water tank 7, and transported to the surface cooler coil by the water pump 6. When the cold air passes through the surface cooler coil, it can absorb heat and get heated up.
[0053] This embodiment controls the first on-off valve 4 and the second on-off valve 5 according to the ambient temperature situation, and can heat or cool the air as needed to keep the ambient temperature at an appropriate value.
[0054] In some embodiments, the water in the second pipeline comes from the working area or the underground water storage tank.
[0055] Secondly, the present disclosure provides a tobacco production workshop, including the air conditioning unit of the above embodiment. For example, the tobacco production workshop can be a cigarette making workshop, etc. By setting the air conditioning unit of the embodiment of the present disclosure, the temperature of the tobacco production workshop can be kept within an appropriate temperature range, which can not only make the operator in a comfortable working environment, but also be beneficial to ensuring that the tobacco materials are in appropriate storage conditions.
[0056] Although some specific embodiments of the present disclosure have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be equivalently replaced without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.
Claims
1. An air conditioning unit, characterized in that: include: a chiller configured to provide chilled water; A surface cooler (1), wherein a surface cooler coil is provided in the surface cooler (1); A first pipeline is configured to supply the chilled water to the surface cooling coil, and a first on-off valve (4) is provided on the first pipeline; A second pipeline, wherein a heat pump (8) and a second on-off valve (5) are provided on the second pipeline, and the heat pump (8) is configured to heat water and provide the water to the surface cooling coil through the second pipeline.
2. The air conditioning unit according to claim 1, characterized in that: The first pipeline and the second pipeline have a common section (2), the common section (2) is connected to the surface cooler (1), the first pipeline further comprises a first branch section (9), the second pipeline further comprises a second branch section (3), the refrigerator is connected to an end of the first branch section (9) away from the common section (2), the first on-off valve (4) is arranged on the first branch section (9), and the heat pump (8) and the second on-off valve (5) are arranged on the second branch section (3).
3. The air conditioning unit according to claim 1, characterized in that: The second on-off valve (5) is arranged downstream of the heat pump (8).
4. The air conditioning unit according to claim 1, characterized in that: Also includes: A water pump (6) is provided on the second pipeline, and the water pump (6) is configured to provide driving force for water in the second pipeline.
5. The air conditioning unit according to claim 1, characterized in that: Also includes: A water tank (7) is provided on the second pipeline, wherein the water tank (7) is provided downstream of the heat pump (8) and is configured to store hot water generated by the heat pump (8).
6. The air conditioning unit according to claim 1, characterized in that: Also includes: A water pump (6) and a water tank (7) are arranged on the second pipeline, and the heat pump (8), the water tank (7), the water pump (6) and the second on-off valve (5) are arranged in sequence along the flow direction of water.
7. The air conditioning unit according to any one of claims 1 to 6, characterized in that: When the ambient temperature is higher than a preset temperature, the first on-off valve (4) is in an on state and the second on-off valve (5) is in an off state; and / or When the ambient temperature is not higher than a preset temperature, the first on-off valve (4) is in an off state, and the second on-off valve (5) is in an on state.
8. The air conditioning unit according to any one of claims 1 to 6, characterized in that: The water in the second pipeline comes from the working area or an underground water tank.
9. A tobacco production workshop, characterized in that: An air conditioning unit comprising any one of claims 1 to 8.