Corrosion-resistant gas exchange device and control system

Abstract

The invention belongs to the field of gas exchange, and particularly discloses a corrosion-resistant gas exchange device and a control system.The corrosion-resistant gas exchange device comprises two baffles and a plurality of heat exchange pipes arranged between the two baffles, the baffles at the two ends of each heat exchange pipe are each provided with a second pipeline connector, and a first pipeline connector is arranged between the two baffles; a fixing plate is arranged between the first pipeline connector and the second pipeline connector. Two independent ventilation paths are formed, and the flowing mode of fluid is correspondingly adjusted in winter or summer, that is, low-temperature gas can be guided into the device through the first pipeline connector and is guided out from the position of the other first pipeline connector, high-temperature gas can be guided into a room through the second pipeline connector, and the high-temperature gas can be guided into the room through the second pipeline connector. Heat is transferred through the heat exchange pipe, heat exchange is achieved, outdoor fresh air can be introduced, indoor heat can be recycled as much as possible, and energy loss is reduced.

Description

Technical Field

[0001] The invention belongs to the field of gas exchange, and in particular relates to a corrosion-resistant gas exchange device and a control system. Background Art

[0002] Gas exchange is a common requirement in laboratories and industrial production, especially when dealing with corrosive gases, which requires special equipment to ensure safety and efficiency;

[0003] Existing gas exchange equipment often suffers from insufficient corrosion resistance, low heat exchange efficiency and high energy consumption, which limits the performance and service life of the equipment. Summary of the invention

[0004] The object of the present invention is to provide a corrosion-resistant gas exchange device and a control system to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A corrosion-resistant gas exchange device comprises two baffles, and a plurality of heat exchange tubes are arranged between the two baffles. Pipe interface 2 is arranged on the baffles at both ends of the heat exchange tube, a pipe interface 1 is arranged between the two baffles, a fixing plate is arranged between the pipe interface 1 and the pipe interface 2, a ventilation duct is arranged at the front end of one of the pipe interfaces 2, and a temperature control tube is arranged in the ventilation duct.

[0007] Preferably, two of the pipe interfaces 1 are provided, and the two pipe interfaces 1 are respectively located on both sides of the heat exchange tube.

[0008] Preferably, two fixing plates are provided, and the two fixing plates are respectively located at the top and the bottom of the heat exchange tube.

[0009] Preferably, a plurality of through holes are provided inside the baffle, and the through holes correspond to the heat exchange tubes.

[0010] Preferably, the baffle and the pipe interface 1 and the pipe interface 2, the fixing plate and the pipe interface 1 and the pipe interface 2, and the pipe interface 2 and the ventilation duct are all connected via connecting bolts.

[0011] Preferably, the pipe interface 1 and the pipe interface 2 are both conically set, the baffle, pipe interface 1, pipe interface 2, fixing plate, and ventilation duct are all made of steel, and the heat exchange tube is made of borosilicate glass.

[0012] A control system is applied to the above-mentioned corrosion-resistant gas exchange device, comprising a control unit, and a detection unit and an execution unit connected to the control unit.

[0013] Preferably, the control unit includes an integrated micro-control module, an analysis and judgment module, a storage module and a communication module.

[0014] Preferably, the detection unit includes a temperature detection module, a flow detection module, a humidity detection module, a gas leakage detection module, a pressure detection module, an energy metering detection module and a displacement detection module.

[0015] Preferably, the execution unit includes a fan control module, a valve control module, an emergency stop module and an audible and visual alarm module.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention forms two independent ventilation paths and adjusts the flow mode of the fluid accordingly in winter or summer, that is, the gas with a lower temperature is introduced into the device through the first pipe interface and discharged from the second pipe interface, and the gas with a higher temperature is introduced into the room through the second pipe interface, and discharged from the second pipe interface after passing through the heat exchange tube. Heat transfer is carried out through the heat exchange tube to achieve heat exchange. When introducing fresh air from the outside, the heat in the room can be recovered as much as possible, thereby reducing energy loss.

[0018] The present invention is provided with a plurality of evenly cross-arranged heat exchange tubes, and the cold air will completely wrap the heat exchange tubes during the flow process, thereby increasing the heat transfer area and improving the heat transfer efficiency. The cross-arrangement of the heat exchange tubes will block the flow direction of the cold air, causing the flow trajectory of the cold air to bend multiple times. While ensuring the flow speed of the cold air, the contact time with the heat exchange tubes in the device is extended. Since the diameter of the heat exchange tube is small, the speed of the hot air inside it will increase, thereby improving the heat transfer coefficient and causing it to enter a turbulent state, which can effectively absorb heat from the hot air. At the same time, when the hot air flows rapidly, its boundary layer will be thinner, thereby improving the heat exchange effect.

[0019] The present invention uses borosilicate glass to prepare device components, so that the device has excellent chemical corrosion resistance, is suitable for working environments that process corrosive gases, and has convenient structure disassembly, assembly, and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the local structure of the baffle of the present invention;

[0023] Figure 3 It is a system module block diagram of the present invention.

[0024] In the figure: 1. baffle; 101. through hole; 102. connecting bolt; 2. heat exchange tube; 3. pipe interface 1; 4. pipe interface 2; 5. fixing plate; 6. temperature control tube; 7. ventilation duct. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] As attached Figure 1 To Attachment Figure 3 As shown:

[0029] Embodiment 1: This embodiment provides a corrosion-resistant gas exchange device, including two baffles 1, and a plurality of heat exchange tubes 2 arranged between the two baffles 1. Pipe interfaces 2 4 are arranged on the baffles 1 at both ends of the heat exchange tubes 2, and a pipe interface 1 3 is arranged between the two baffles 1. A fixing plate 5 is arranged between the pipe interface 1 3 and the pipe interface 2 4. A ventilation duct 7 is arranged at the front end of one of the pipe interfaces 2 4, and a temperature control tube 6 is arranged in the ventilation duct 7. When the temperature of the air entering the room does not meet the standard, it will be adjusted to meet the requirements. The number of heat exchange tubes 2 is calculated based on the area of ​​the ventilation duct, and the number of heat exchange tubes 2 will also change synchronously according to different sizes.

[0030] The baffle 1 is used to separate the pipe interface 1 3 from the pipe interface 2 4, so that the two pipe interfaces 1 3 are connected to each other but not to the pipe interface 2 4, and the two pipe interfaces 2 4 are connected by the heat exchange tube 2 to form two independent ventilation paths, which overlap between the baffles 1. One group of pipe interfaces 1 3 and pipe interface 2 4 are connected to the outdoors, and the other group of pipe interfaces 1 3 and pipe interface 2 4 are connected to the indoors. When the gas exchange is performed, the two independent ventilation paths both start to transport gas, and the gas transport directions are opposite, that is, one ventilation path introduces outdoor fresh air into the indoors, and the other ventilation path discharges the indoor dirty air to the outdoors, and the gas with a lower temperature is introduced into the device through the pipe interface 1 3 , and is exported from another pipe interface 1 3. The gas with higher temperature will be introduced into the room through the pipe interface 2 4, and will be exported through another pipe interface 2 4 after passing through the heat exchange tube 2. That is, in winter, the warm air in the room will transfer the heat to the colder outdoor air outside the heat exchange tube 2 which is about to enter the room after entering the device. In summer, the opposite is true. The working states of the two independent ventilation paths are switched by the pipe valve, so that the hot air outside the room will transfer the heat to the colder air outside the heat exchange tube 2 which is about to be discharged from the room after entering the device, thereby realizing heat exchange. When introducing fresh air from the outside, the heat in the room can be recovered as much as possible to reduce energy loss.

[0031] Specifically, two pipeline interfaces 1 3 are provided, and the two pipeline interfaces 1 3 are respectively located on both sides of the heat exchange tube 2 .

[0032] Specifically, two fixing plates 5 are provided, and the two fixing plates 5 are respectively located at the top and the bottom of the heat exchange tube 2 .

[0033] Specifically, a plurality of through holes 101 are provided inside the baffle 1 , and the through holes 101 correspond to the heat exchange tubes 2 .

[0034] As can be seen from the above, the baffle 1 separates the pipe interface 1 3 from the pipe interface 2 4, so that the two pipe interfaces 1 3 are connected to each other but not to the pipe interface 2 4, and the heat exchange tube 2 is used to connect the two pipe interfaces 2 4 to form two independent ventilation paths, which overlap between the baffles 1, one group of pipe interfaces 1 3 and the pipe interface 2 4 are connected to the outdoors, and the other group of pipe interfaces 1 3 and the pipe interface 2 4 are connected to the indoors. When the gas exchange is performed, the two independent ventilation paths both start to transport gas, and the gas transport directions are opposite, that is, one ventilation path introduces outdoor fresh air into the room, and the other ventilation path discharges the indoor dirty air to the outdoors, and the gas with a lower temperature is introduced into the room through the pipe interface 1 3. The device is inside and is led out from another pipe interface 1 3. The gas with higher temperature is introduced into the room through the pipe interface 2 4, and is led out through another pipe interface 2 4 after passing through the heat exchange pipe 2. That is, in winter, the warm air in the room will transfer heat to the colder outdoor air outside the heat exchange pipe 2 that is about to enter the room after entering the device. In summer, the opposite is true. The working states of the two independent ventilation paths are switched by the pipe valve, so that the hot air outside the room transfers heat to the colder outdoor air outside the heat exchange pipe 2 that is about to be discharged from the room after entering the device, thereby realizing heat exchange. The air introduced into the outdoor fresh air can recover the indoor heat as much as possible, thereby reducing energy loss.

[0035] A plurality of heat exchange tubes 2 are arranged evenly and crosswise. The cold air entering the device through the pipe interface 3 will completely wrap the heat exchange tube 2 during the flow process, thereby increasing the heat transfer area and improving the heat transfer efficiency. In the flow process of the cold air, the cross arrangement of the heat exchange tubes 2 will block the flow direction of the cold air, causing the flow trajectory of the cold air to bend multiple times. The plurality of heat exchange tubes 2 provided will reduce the tube diameter of the device, thereby extending the contact time of the cold air with the heat exchange tube 2 in the device while ensuring the flow speed of the cold air. Since the diameter of the heat exchange tube 2 is small, the hot air speed inside it will increase, thereby improving the heat transfer coefficient and causing it to enter a turbulent state, which can effectively absorb heat from the hot air. At the same time, when the hot air flows rapidly, its boundary layer will be thinner, thereby improving the heat exchange effect.

[0036] Embodiment 2: This embodiment provides a corrosion-resistant gas exchange device, including two baffles 1, a plurality of heat exchange tubes 2 arranged between the two baffles 1, pipe interfaces 2 4 are arranged on the baffles 1 at both ends of the heat exchange tubes 2, a pipe interface 1 3 is arranged between the two baffles 1, a fixing plate 5 is arranged between the pipe interface 1 3 and the pipe interface 2 4, a ventilation duct 7 is arranged at the front end of one of the pipe interfaces 2 4, and a temperature control tube 6 is arranged in the ventilation duct 7.

[0037] Specifically, two pipeline interfaces 1 3 are provided, and the two pipeline interfaces 1 3 are respectively located on both sides of the heat exchange tube 2 .

[0038] Specifically, two fixing plates 5 are provided, and the two fixing plates 5 are respectively located at the top and the bottom of the heat exchange tube 2 .

[0039] Specifically, a plurality of through holes 101 are provided inside the baffle 1 , and the through holes 101 correspond to the heat exchange tubes 2 .

[0040] Specifically, the baffle 1 and the pipe interface 1 3 and the pipe interface 2 4 , the fixing plate 5 and the pipe interface 1 3 and the pipe interface 2 4 , and the pipe interface 2 4 and the ventilation duct 7 are all connected via the connecting bolts 102 .

[0041] Specifically, the pipe interface 1 3 and the pipe interface 2 4 are both conical, the baffle 1, the pipe interface 1 3, the pipe interface 2 4, the fixing plate 5, and the ventilation duct 7 are all made of steel, and the heat exchange tube 2 is made of borosilicate glass.

[0042] As can be seen from the above, the baffle 1 separates the pipe interface 1 3 from the pipe interface 2 4, so that the two pipe interfaces 1 3 are connected to each other but not to the pipe interface 2 4, and the heat exchange tube 2 is used to connect the two pipe interfaces 2 4 to form two independent ventilation paths, which overlap between the baffles 1, one group of pipe interfaces 1 3 and the pipe interface 2 4 are connected to the outdoors, and the other group of pipe interfaces 1 3 and the pipe interface 2 4 are connected to the indoors. When the gas exchange is performed, the two independent ventilation paths both start to transport gas, and the gas transport directions are opposite, that is, one ventilation path introduces outdoor fresh air into the room, and the other ventilation path discharges the indoor dirty air to the outdoors, and the gas with a lower temperature is introduced into the room through the pipe interface 1 3. The device is inside and is led out from another pipe interface 1 3. The gas with higher temperature is introduced into the room through the pipe interface 2 4, and is led out through another pipe interface 2 4 after passing through the heat exchange pipe 2. That is, in winter, the warm air in the room will transfer heat to the colder outdoor air outside the heat exchange pipe 2 that is about to enter the room after entering the device. In summer, the opposite is true. The working states of the two independent ventilation paths are switched by the pipe valve, so that the hot air outside the room transfers heat to the colder outdoor air outside the heat exchange pipe 2 that is about to be discharged from the room after entering the device, thereby realizing heat exchange. The air introduced into the outdoor fresh air can recover the indoor heat as much as possible, thereby reducing energy loss.

[0043] A plurality of heat exchange tubes 2 are arranged evenly and crosswise. The cold air entering the device through the pipe interface 3 will completely wrap the heat exchange tubes 2 during the flow process, thereby increasing the heat transfer area and improving the heat transfer efficiency. In addition, the cross arrangement of the heat exchange tubes 2 will block the flow direction of the cold air during the flow of the cold air, causing the flow trajectory of the cold air to bend multiple times. The plurality of heat exchange tubes 2 provided will reduce the diameter of the device, thereby extending the contact time between the cold air and the heat exchange tubes 2 in the device while ensuring the flow speed of the cold air. Since the diameter of the heat exchange tubes 2 is small, the speed of the hot air inside the heat exchange tubes 2 will increase, thereby improving the heat transfer coefficient and causing the hot air to enter a turbulent state, thereby effectively absorbing heat from the hot air. At the same time, when the hot air flows rapidly, its boundary layer will be thinner, thereby improving the heat exchange effect.

[0044] The two L-shaped connecting plates on both sides of the baffle 1 are composed of two plane connecting plates, and the holes adapted to the connecting bolts 102 are located thereon. When the device is assembled, the baffle 1 can be connected to the two pipe interfaces 1 3 respectively by passing the connecting bolts 102 through the holes, and then the nuts are used to limit them. At this time, the two pipe interfaces 1 3 will fix the two baffles 1 together on both sides of the device, and then the baffle 1 and the pipe interface 2 4 are connected together through another plane connecting plate of the L-shaped connecting plate. Finally, the two fixing plates 5 are respectively placed on the top and bottom of the device for sealing, and the two pipe interfaces 1 3 and the two pipe interfaces 2 4 are respectively connected through the connecting bolts 102 to complete the assembly and installation of the device. It can be disassembled step by step during disassembly and maintenance, and the stability of other structures will not be affected, which is convenient for personnel to use;

[0045] The heat exchange tube 2 is made of borosilicate glass, which makes the device have excellent chemical corrosion resistance, can ensure safety and effect when working with corrosive gases, and extend the service life of the device.

[0046] Embodiment 3: This embodiment provides a control system, which is applied to the above-mentioned corrosion-resistant gas exchange device, including a control unit, and a detection unit and an execution unit connected to the control unit.

[0047] Specifically, the control unit includes an integrated micro-control module, an analysis and judgment module, a storage module and a communication module.

[0048] Specifically, the detection unit includes a temperature detection module, a flow detection module, a humidity detection module, a gas leakage detection module, a pressure detection module, an energy metering detection module and a displacement detection module.

[0049] Specifically, the execution unit includes a fan control module, a valve control module, an emergency stop module and an audible and visual alarm module.

[0050] As can be seen from the above, during the working process, the temperature detection module is used to monitor the indoor and outdoor air temperatures in real time to provide the data required for heat exchange, and the flow detection module is used to measure the flow of fresh air sent into the room and the flow of dirty air discharged from the outside to ensure the balance between the two. During the process, the humidity detection module is used to monitor the air humidity in real time to help adjust the heat exchange efficiency. The Internet of Things is connected through the communication module to connect the fan, valve, etc. to the system, and the detection data is transmitted to the microcontroller module. After analysis by the analysis and judgment module, the working state of the fan is adjusted through the fan control module to ensure that the air flow is in the optimal state. According to the indoor and outdoor temperature conditions in winter and summer, the valve control module is used to adjust the channel of the heat exchange device to achieve the optimal heat exchange.

[0051] During the operation of the system, the gas leakage detection module monitors the device and pipeline for gas leakage in real time to ensure the safe operation of the equipment, and the pressure detection module detects the gas pressure. When the pressure exceeds the set value, the valve control module opens the pressure relief valve to release the excessive pressure. The displacement detection module detects the vibration displacement of the device.

[0052] During the working process, the energy metering and detection module is used to detect and record the energy consumption data. The energy consumption data is analyzed through the analysis and judgment module and compared with the energy consumption under normal working conditions. Combined with the detected indoor and outdoor temperature changes and air flow data, an alarm will be issued through the sound and light alarm module when the energy consumption and detection data are abnormal. When large-scale vibration displacement, overheating, and excessive flow occur, the emergency shutdown module will quickly execute the shutdown command to ensure that all running components stop operating immediately.

[0053] This design application is applied in laboratories and industrial production scenarios. By adopting borosilicate glass to prepare the main components of the device, two independent gas channels are formed. Heat exchange is carried out at the intersection through a number of cross-arranged heat exchange tubes 2. The flow mode of the fluid is adjusted according to the current indoor and outdoor temperature conditions. While introducing outdoor fresh air, indoor heat can be recovered, reducing energy loss and energy consumption. It is particularly suitable for the exchange of corrosive-resistant gases, and can achieve heat exchange and energy conservation and emission reduction.

[0054] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0055] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0056] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A corrosion-resistant gas exchange device, characterized in that: The invention comprises two baffles (1), a plurality of heat exchange tubes (2) arranged between the two baffles (1), a second pipe interface (4) being arranged on the baffles (1) at both ends of the heat exchange tube (2), a first pipe interface (3) being arranged between the two baffles (1), a fixing plate (5) being arranged between the first pipe interface (3) and the second pipe interface (4), a ventilation duct (7) being arranged at the front end of one of the second pipe interfaces (4), and a temperature control tube (6) being arranged in the ventilation duct (7).

2. A corrosion-resistant gas exchange device according to claim 1, characterized in that: The pipeline interface one (3) is provided with two, and the two pipeline interface one (3) are respectively located on both sides of the heat exchange tube (2).

3. A corrosion-resistant gas exchange device according to claim 1, characterized in that: Two fixing plates (5) are provided, and the two fixing plates (5) are respectively located at the top and the bottom of the heat exchange tube (2).

4. A corrosion-resistant gas exchange device according to claim 1, characterized in that: A plurality of through holes (101) are arranged inside the baffle (1), and the through holes (101) correspond to the heat exchange tubes (2).

5. A corrosion-resistant gas exchange device according to claim 1, characterized in that: The baffle plate (1) and the first pipe interface (3) and the second pipe interface (4), the fixing plate (5) and the first pipe interface (3) and the second pipe interface (4), and the second pipe interface (4) and the ventilation pipe (7) are all connected via connecting bolts (102).

6. A corrosion-resistant gas exchange device according to claim 1, characterized in that: The pipe interface 1 (3) and the pipe interface 2 (4) are both conical in shape; the baffle (1), the pipe interface 1 (3), the pipe interface 2 (4), the fixing plate (5) and the ventilation pipe (7) are all made of steel; and the heat exchange tube (2) is made of borosilicate glass.

7. A control system, applied to the corrosion-resistant gas exchange device according to any one of claims 1 to 6, characterized in that: It comprises a control unit, and a detection unit and an execution unit connected to the control unit.

8. A control system according to claim 7, characterized in that: The control unit includes an integrated micro-control module, an analysis and judgment module, a storage module and a communication module.

9. A control system according to claim 7, characterized in that: The detection unit includes a temperature detection module, a flow detection module, a humidity detection module, a gas leakage detection module, a pressure detection module, an energy metering detection module and a displacement detection module.

10. A control system according to claim 7, characterized in that: The execution unit includes a fan control module, a valve control module, an emergency stop module and an audible and visual alarm module.

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