Lithium battery workshop microenvironment management and control system

Abstract

The utility model provides a microenvironment management and control system for a lithium battery workshop. The microenvironment management and control system comprises a production workshop, an air supply pipeline, an air return pipeline, power equipment, a temperature and humidity sensor and a controller, the production workshop is divided into a plurality of control areas, the space of each control area is reduced in sequence, and each control area is externally connected with power equipment through an air supply pipeline and an air return pipeline; a temperature and humidity sensor is arranged in each control area, each temperature and humidity sensor is electrically connected with a controller, and the controller is electrically connected with each power device. Through the arrangement of the structure, the plurality of control areas can be respectively set as a low control area, a high control area and an ultrahigh control area, the temperature and humidity sensors can monitor the temperature and humidity in each control area, the spaces of the low control area, the high control area and the ultrahigh control area are sequentially reduced, and the energy consumption of the power equipment is sequentially increased, so that the environment is properly controlled, and the energy consumption of the power equipment is reduced. And the waste of energy consumption in the lithium battery production process is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery manufacturing technical field, concretely is a lithium battery workshop microenvironment management and control system. BACKGROUND

[0002] In the current energy transformation tide, lithium battery becomes the important motive power source of promoting the development of electric vehicles, energy storage systems and portable electronic devices fields with its high energy density, long cycle life and environmental protection characteristics, however, the production of lithium battery is a highly precise process, and any slight environmental factor fluctuation can have a significant impact on its performance, among them, the temperature and humidity in the production workshop is one of the key elements to determine the quality and life of lithium battery, and the power equipment in the power auxiliary room plays an important role in temperature and humidity control, different production sections have great difference in temperature and humidity requirements of the workshop, so it is necessary to select appropriate power equipment for environmental control, at present, the lithium industry carries out environmental control on different workshops, and the whole process workshop is obviously a very large control area, and during normal production, the semi-finished products of each process are basically running in the equipment, and rarely contact with the external workshop environment, so there is excessive environmental control, which causes high energy consumption of the power auxiliary room, especially when low dew point control is required in the post-process section, the energy waste will be higher. CONTENT OF THE UTILITY MODEL

[0003] The technical problem to be solved by the utility model is how to reduce the waste of energy consumption in the production process of lithium battery.

[0004] The utility model solves the above technical problems through the following technical means:

[0005] A lithium battery workshop microenvironment management and control system, comprising a production workshop (1), an air supply pipeline (3), an air return pipeline (4), power equipment, a temperature and humidity sensor and a controller, the production workshop (1) is isolated into multiple control areas, the space of each control area is reduced in turn, and each control area is connected with the power equipment through the air supply pipeline (3) and the air return pipeline (4); the temperature and humidity sensor is arranged in each control area, each temperature and humidity sensor is electrically connected with the controller, and the controller is electrically connected with the power equipment.

[0006] Advantages: through the arrangement of the production workshop, the air supply pipeline, the air return pipeline, the power equipment, the temperature and humidity sensor and the controller, the multiple control areas can be set as a low control area, a high control area and an ultrahigh control area, the temperature and humidity sensor can monitor the temperature and humidity in each control area, the space of the low control area, the high control area and the ultrahigh control area is reduced in turn, and the power equipment energy consumption is increased in turn, so that the environmental control is appropriate, and the waste of energy consumption in the production process of lithium battery is reduced.

[0007] Further, the production workshop (1) is isolated into a low control area, a high control area and an ultrahigh control area by the clean plate (2).

[0008] Further, the micro-environment control boundary is set between the high control area and the ultra-high control area, and the micro-environment control boundary is set between the low control area and the high control area, and the micro-environment boundary is surrounded by the clean plate (2).

[0009] Further, the air supply pipeline (3) and the return air pipeline (4) are laid in different control areas, and the air supply pipeline (3) and the return air pipeline (4) are respectively connected to the output end and the input end of each power equipment to form a cycle.

[0010] Beneficial effect: through the setting of the air supply pipeline and the return air pipeline, the gas in each control area is transported to the corresponding power equipment through the return air pipeline, and then transported from the power equipment to the corresponding return air pipeline into each control area, forming a cycle.

[0011] Further, the input end of the power equipment is connected to the air.

[0012] Beneficial effect: the input end of the power equipment is also connected to the air, and the air supplied by the air supply pipeline includes the return air of the return air pipeline and the air, which can ensure that each control area is under positive pressure.

[0013] Further, the air outlet filter is arranged at the connection between the air supply pipeline (3) and the return air pipeline (4) and each control area.

[0014] Beneficial effect: through the setting of the air outlet filter, impurities in the gas can be filtered out to ensure the environment of the production workshop.

[0015] Further, the low control area is provided with a primary air outlet filter (5), and the high control area and the ultra-high control area are provided with a middle air outlet filter (6).

[0016] Further, the low control area is connected to the air source heat pump and the jet machine group through the air supply pipeline (3) and the return air pipeline (4).

[0017] Beneficial effect: the low control area with large space is connected to the air source heat pump and the jet machine group with low energy consumption, so that the environment control is appropriate, and the waste of energy consumption in the production process of lithium batteries is reduced.

[0018] Further, the high control area is connected to the air conditioning box through the air supply pipeline (3) and the return air pipeline (4).

[0019] Further, the ultra-high control area is connected to the dehumidifier through the air supply pipeline (3) and the return air pipeline (4).

[0020] Beneficial effect: the ultra-high control area with small space is connected to the dehumidifier with high energy consumption, so that the environment control is appropriate, and the waste of energy consumption in the production process of lithium batteries is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the lithium battery workshop micro-environment control system of the embodiment of the utility model.

[0022] Figure 2 This is a control flowchart of the temperature and humidity sensor and controller in the microenvironment management system of the lithium battery workshop according to Embodiment 1 of this utility model. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Example 1

[0025] like Figure 1 As shown, this embodiment provides a microenvironment control system for a lithium battery workshop, including a production workshop 1, a clean panel 2, an air supply duct 3, a return air duct 4, power equipment (not shown), a temperature and humidity sensor (not shown), and a controller (not shown).

[0026] like Figure 1 As shown, the entire production workshop 1 is divided into three zones according to temperature and humidity requirements using cleanroom panels 2: a low-controlled zone (temperature 25±3℃, relative humidity above 65%), a high-controlled zone (temperature 25±3℃, relative humidity 45%-65%), and an ultra-high-controlled zone (temperature 25±3℃ or 45±3℃, relative humidity below 45%). Microenvironmental control boundaries are established between the high-controlled and ultra-high-controlled zones, and between the low-controlled and high-controlled zones. These microenvironmental boundaries are formed by cleanroom panels of a certain thickness. Each area requiring control is enclosed by cleanroom panels to form an independent control zone. The microenvironment is designed by laying corresponding supply air ducts 3 and return air ducts 4 in different control zones. The duct channels are connected to suitable power equipment. Each supply air duct 3 and return air duct 4 is connected to the output and input ends of each power equipment to form a circulation. The input end of the power equipment is also connected to the air. The air supplied by the supply air duct 3 includes the return air and air from the return air duct 4, which can ensure positive pressure in each control zone. Air outlet filters are installed at the connection between the supply air duct 3, return air duct 4 and clean panel 2. Primary air outlet filters 5 are installed in the corresponding low control zone, and intermediate air outlet filters 6 are installed in the high control zone and ultra-high control zone.

[0027] like Figure 1As shown, the power equipment includes air source heat pump and jet unit, air conditioning box and dehumidifier, because the required temperature and humidity in each micro environment are different, the selected power equipment is also different; when the temperature in the control area is 25±3℃ and the relative humidity is above 65%(low dew point), the air source heat pump and jet unit are preferably used for environment control; when the temperature in the control area is 25±3℃ and the relative humidity is 45%-65%, the air conditioning box is preferably used for environment control; when the temperature in the control area is 25±3℃ or 45±3℃ and the relative humidity is below 45%(high dew point), the dehumidifier is preferably used for environment control; the correspondence between dew point and relative humidity is prior art; the selection of power equipment is reasonably adjusted, and the input of production line operation cost is reduced as much as possible from the equipment selection end.

[0028] As shown in Figure 2 The low control area, the high control area and the ultra-high control area are provided with temperature and humidity sensors, and a plurality of temperature and humidity sensors are arranged in each control area in the embodiment, the temperature and humidity sensors are electrically connected with the controller, the controller is electrically connected with each power equipment, the signals are sent to the controller of each control area (not shown in the figure) through the temperature and humidity sensors to implement feedback adjustment of control, in this micro environment control system, the data of each automatic power equipment is collected on the unified integrated platform, and the real-time temperature and humidity conditions in each micro environment control area can be seen on the data integration panel, and the data collection and display are prior art; the integration of the system facilitates data collection and mobilization, and greatly improves the operation and maintenance efficiency.

[0029] For example, the dew point requirement of the post-process section such as liquid injection and high-temperature formation workshop of lithium battery production is extremely high, and the dew point requirement even reaches-60℃ to-70℃, and the corresponding double-rotor dehumidifier is used for environment control, and the energy consumption of the dehumidifier in this section is relatively high, and the production of batteries in the liquid injection and high-temperature formation workshops is almost on the corresponding battery cell production equipment and the logistics line, if only the micro environment control of the battery cell production equipment and the battery passing logistics line is good, that is, the space in the workshop (accounting for a large part of the space) is set as a low control area or a high control area, because the whole space does not affect the battery production, only the personnel and materials are in and out, the air conditioning unit or the high-dew-point dehumidifier can be used for control, and the energy consumption is relatively low; from this application case, it can also be clearly seen that the liquid injection and high-temperature formation workshops are divided into control areas, the space of the high control area is greatly compressed, the space of the low control area is increased, the unnecessary energy consumption is reduced, and the production cost input is greatly reduced.

[0030] For example, in the normal temperature standing, capacity grading, encapsulation grading and other areas of lithium battery production, these areas are generally taken as a whole large control area, the temperature is 25±3℃, the humidity requirement is 65%, air source heat pump and jet unit are generally used for control, although the whole control operation is relatively convenient, but from the energy consumption aspect, it is not conducive to energy saving and consumption reduction; because the whole area space is large, the number of air source heat pump and jet unit configured is also large, if only the normal temperature standing area is needed to be used or not all the area is used, but all the air source heat pump and jet unit corresponding to the area need to be started, so the phenomenon of excessive energy consumption waste exists, if these areas are all made into respective micro environment for control according to the application, independent and efficient control can be realized, the air source heat pump and jet unit corresponding to the micro environment control area can also be selected to be started or closed according to the production demand; from this aspect, it can also be found that the micro environment control has great benefits for production line production investment and operation, it belongs to one-time investment and lifelong benefit; in order to facilitate the real-time control of each micro environment area and reduce the control operation workload, the micro environment control can be integrated in a system through power equipment, the equipment management system is made into integrated management, which is more convenient for the collection, integration and mobilization of each equipment data, and the operation and maintenance efficiency is greatly improved.

[0031] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A lithium battery workshop micro-environment management system, characterized in that, The application relates to a production workshop air conditioning system, which comprises a production workshop (1), air supply pipelines (3), air return pipelines (4), power equipment, temperature and humidity sensors and a controller. The production workshop (1) is isolated into multiple control areas, the space of each control area is gradually reduced, each control area is connected with the power equipment through the air supply pipelines (3) and the air return pipelines (4), temperature and humidity sensors are arranged in each control area, the temperature and humidity sensors are electrically connected with the controller, and the controller is electrically connected with the power equipment.

2. The lithium battery micro-environment management system of claim 1, wherein: The production workshop (1) is isolated into a low control area, a high control area and an ultrahigh control area through clean plates (2).

3. The lithium battery micro-environment management system of claim 2, wherein: Micro-environment control boundaries are arranged between the high control area and the ultrahigh control area and between the low control area and the high control area, and the micro-environment boundaries are surrounded by the clean plates (2).

4. The lithium battery microenvironment management system of claim 1, wherein: The air supply pipelines (3) and the air return pipelines (4) are arranged in different control areas, the air supply pipelines (3) and the air return pipelines (4) are respectively connected with the output end and the input end of the power equipment to form a cycle.

5. The lithium battery micro-environment management system of claim 4, wherein: The input end of the power equipment is connected with air.

6. The lithium battery microenvironment management system of claim 1, wherein: Air outlet filters are arranged at the connection positions of the air supply pipelines (3), the air return pipelines (4) and the control areas.

7. The lithium battery micro-environment management system of claim 2, wherein: Primary air outlet filters (5) are arranged in the low control area, and intermediate air outlet filters (6) are arranged in the high control area and the ultrahigh control area.

8. The lithium battery micro-environment management system of claim 2, wherein: The low control area is connected with an air source heat pump and a jet machine group through the air supply pipelines (3) and the air return pipelines (4).

9. The lithium battery microenvironment management system of claim 2, wherein: The high control area is connected with an air conditioning box through the air supply pipelines (3) and the air return pipelines (4).

10. The lithium battery microenvironment management system of claim 2, wherein: The ultrahigh control area is connected with a dehumidifier through the air supply pipelines (3) and the air return pipelines (4).

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