Accident chlorine electric power safety guarantee system
By combining UPS power supply and manual maintenance bypass with IGBT transistor inverter, the problem of power switching time difference in the event of an accident in chlor-alkali enterprises was solved, realizing uninterrupted power supply to the chlorine absorption unit and improving the system's response speed and safety.
Patent Information
- Application Number
- CN202423127505.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-18
AI Technical Summary
In existing technologies, there is a time lag in the power switching of chlorine absorption devices in chlor-alkali enterprises under accident conditions, which may lead to equipment shutdown, causing environmental pollution and safety hazards.
The system employs a UPS power supply and manual maintenance bypass, combined with an IGBT transistor inverter, to ensure uninterrupted power supply. Stable power switching is achieved through components such as rectifiers and transformers, and pulse width modulation technology is used to improve response speed.
It enables uninterrupted power supply to the chlorine absorption unit of chlor-alkali enterprises under accident conditions, ensuring safe production and environmental protection, and improving the system's response speed and protection capabilities.
Smart Images
Figure CN223639023U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of electrical control, in particular to an accident chlorine power safety guarantee system. BACKGROUND
[0002] In the production process of chlor-alkali enterprises, a large amount of chlorine gas will be produced. The chlorine gas enters the next process as raw material. Once power failure, shutdown or accident occurs, a large amount of chlorine gas may overflow. If it cannot be ensured to be completely treated, it will pollute the surrounding environment and harm the human body. At present, the electrical power supply of the accident chlorine gas absorption device in chlor-alkali enterprises adopts double power supply technology, that is, city power, security power supply and the like. The double power supply cannot use the standby power supply in zero seconds after the main power supply loses power, and there is a time difference, which may cause the related guarantee equipment to stop running due to loss of power supply. UTILITY MODEL CONTENTS
[0003] The utility model aims at overcoming the defects of the prior art and providing an accident chlorine power safety guarantee system. By setting the UPS power supply, uninterrupted power supply is ensured for the power supply of the chlorine gas tail gas absorption device of the chlor-alkali enterprise, so as to meet the requirements of safe production and environmental protection.
[0004] According to the accident chlorine power safety guarantee system provided by the utility model, the city power input end, the bypass input end and the UPS power supply input end are connected in parallel, the rectifier switch, the input inductor, the first city power fuse, the rectifier, the second city power fuse, the inverter, the transformer and the static switch are arranged between the city power input end and the load output end, the bypass switch and the bypass fuse are arranged between the bypass input end and the load output end, the output end of the bypass fuse is connected to the input end of the static switch, the output end of the static switch is connected to the load output end through the output switch, and the UPS power supply input end is arranged between the rectifier and the second city power fuse.
[0005] In one embodiment, the load output end is an accident chlorine gas tail gas absorption device.
[0006] In one embodiment, the system further comprises a manual maintenance bypass.
[0007] In one embodiment, a maintenance switch is arranged on the manual maintenance bypass.
[0008] In one embodiment, the inverter is an IGBT transistor.
[0009] In one embodiment, the inverter is provided with an internal isolation transformer.
[0010] Compared with the prior art, the utility model has the beneficial effects that:
[0011] First, by setting UPS power supply, can guarantee uninterrupted power supply to chlor alkali enterprise accident chlorine tail gas absorption device power equipment power supply, thereby meeting the requirements of safety production and environmental protection.
[0012] Second, by setting manual maintenance bypass, manual maintenance bypass can uninterruptedly power supply to load during testing or repairing UPS, maintain with bypass ac power supply direct power supply to load.
[0013] Third, inverter adopts IGBT transistor, runs in the free frequency mode of pulse width modulation (PWM), and has a built-in isolation transformer, improves the response speed and protection capability of system. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 The utility model proposes a structural diagram of accident chlorine power safety guarantee system.
[0015] Illustration: 1, mains input end;2, bypass input end;3, UPS power supply input end;4, load output end;5, rectifier switch;6, input inductance;7, first mains fuse;8, rectifier;9, second mains fuse;10, inverter;11, transformer;12, static switch;13, bypass switch;14, bypass fuse;15, output switch;16, manual maintenance bypass;17, maintenance switch. DETAILED DESCRIPTION
[0016] In order to make the above purpose, features and advantages of the utility model more apparent and easy to understand, the specific implementation of the utility model is further explained in detail in the following with the drawings and examples.
[0017] In the description of the utility model, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and so on, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, and only for the convenience of describing the present application and simplifying the description, and not indicate or imply that the system or element indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore it can not be understood as the limitation of the utility model.
[0018] In the utility model, unless another definite provision and limitation, if there is the term "installation", "link", "connection", "fixation" and so on, these terms should do the broad sense understanding. For example, it can be fixed connection, also can be detachable connection, or be integrated, can be mechanical connection, also can be electric signal connection, can be direct connection, also can indirectly connect through intermediate medium, can be the communication of two elements or the interaction of two elements, unless another definite limitation. For ordinary skilled person in the art, the above terms can be understood according to the specific meaning in the utility model.
[0019] It should be noted that if an element is referred to as "fixed to" or "disposed to" another element, it can be directly on another element or there can be a middle element. If an element is considered "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the utility model are for illustrative purposes only and do not indicate the only implementation.
[0020] Referring to Figure 1 , Figure 1 The utility model discloses an embodiment of the structure schematic diagram of accident chlorine electric power safety guarantee system, an embodiment of the utility model provides an accident chlorine electric power safety guarantee system, including mains input end 1, bypass input end 2, UPS power input end 3 and load output end 4, mains input end 1, bypass input end 2 and UPS power input end 3 are in parallel, including rectifier switch 5, input inductance 6, first mains fuse 7, rectifier 8, second mains fuse 9, inverter 10, transformer 11 and static switch 12 between mains input end 1 and load output end 4, including bypass switch 13 and bypass fuse 14 between bypass input end 2 and load output end 4, the output end of bypass fuse 14 is connected to the input end of static switch 12, and the output end of static switch 12 is connected to load output end 4 through output switch 15, and UPS power input end 3 is arranged between rectifier 8 and second mains fuse 9. Wherein the UPS power is the power frequency UPS power, and the switching of different power is intelligent and interlocked.
[0021] In one embodiment, the load output end 4 is an accident chlorine tail gas absorption device. It is guaranteed that the power supply of the power equipment of the chlorine tail gas absorption device of chlor-alkali enterprise accident is powered uninterruptedly, so as to meet the requirements of safety production and environmental protection.
[0022] In one of the embodiments, the system further comprises a manual maintenance bypass 16, the input end of the manual maintenance bypass 16 is connected with the bypass input end 2, and the output end of the manual maintenance bypass 16 is connected with the load output end 4. A maintenance switch 17 is arranged on the manual maintenance bypass 16, so that uninterrupted power supply for the load during testing or repairing the UPS can be realized, and the load is directly supplied with the bypass AC power.
[0023] In one of the embodiments, the inverter 10 is an IGBT transistor, which operates in a free frequency mode of pulse width modulation (PWM) and has a built-in isolation transformer, so that the response speed and protection capability of the system are improved.
[0024] The working mode of the emergency chlorine power security system is as follows: during normal operation, the UPS power supply must continuously supply power to the load, the rectifier switches the AC power of the main AC input power supply into DC power to supply the inverter, and meanwhile, the UPS power supply battery is kept in a full charge state; when the main AC input power supply fails, the load is supplied with power by the UPS power supply battery through the inverter, after the main AC power supply is restored, the rectifier supplies power to the load through the inverter again, and meanwhile, the battery pack is charged, and the current provided by the inverter is the same as that provided during normal operation; when the UPS is shut down, the automatic bypass ensures uninterrupted switching of the load to the bypass AC power supply, and when the UPS returns to the normal operation mode, it will automatically switch back to the normal operation mode; the maintenance switch for maintenance can isolate the output of the automatic bypass and the inverter, so that uninterrupted power supply for the load during testing or repairing the UPS can be realized, and the load is directly supplied with the bypass AC power.
[0025] The above embodiments only express several implementation manners of the utility model, and the description is relatively specific and detailed, but it cannot be understood as the limitation of the utility model patent range. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.
Claims
1. An accident chlorine power safety assurance system, characterized by, The UPS system comprises a mains input end, a bypass input end, a UPS power input end and a load output end, the mains input end, the bypass input end and the UPS power input end are arranged in parallel, a rectifying switch, an input inductor, a first mains fuse, a rectifier, a second mains fuse, an inverter, a transformer and a static switch are arranged between the mains input end and the load output end, a bypass switch and a bypass fuse are arranged between the bypass input end and the load output end, the output end of the bypass fuse is connected to the input end of the static switch, the output end of the static switch is connected to the load output end through an output switch, and the UPS power input end is arranged between the rectifier and the second mains fuse.
2. The incident chlorine electrical power safety assurance system of claim 1, wherein: The load output end is an accident chlorine tail gas absorption device.
3. The incident chlorine electrical power safety assurance system of claim 1, wherein: The system further comprises a manual maintenance bypass, the input end of the manual maintenance bypass is connected to the bypass input end, and the output end of the manual maintenance bypass is connected to the load output end.
4. The incident chlorine electrical power safety assurance system of claim 3, wherein: A maintenance switch is arranged on the manual maintenance bypass.
5. The incident chlorine electrical power safety assurance system of claim 1, wherein: The inverter is an IGBT transistor.
6. The incident chlorine electrical power safety assurance system of claim 1, wherein: The inverter is provided with an internal isolation transformer.