A thermal radiation high temperature protection fence based on SOFC

Abstract

The present invention provides a thermal radiation type high temperature protection fence based on SOFC, which utilizes the heat energy generated during the operation of SOFC, cooperates with the protection fence, and blocks personnel who attempt to enter the site where the SOFC equipment is set by means of thermal radiation, and will not harm the corresponding personnel. In this regard, a thermal radiation type high temperature protection fence based on SOFC is used in conjunction with a fixed SOFC site, and the SOFC site is connected to a conveying device composed of multiple sections; a graded valve is arranged between the conveying devices composed of multiple sections, and the conveying device is provided with a fence body on the outside of the outdoor part, and the fence body is hollow and connected to the third heating pipeline, and also includes a central control system for controlling the conveying device. Through the method described in the present invention, part of the heat energy can be smoothly released, and the protective deterrent effect of the fence can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of protective devices, and in particular to a thermal radiation type high temperature protective fence based on SOFC. Background Art

[0002] Solid oxide fuel cells (SOFCs) generate a lot of heat during use. The operating temperature of the SOFC developed in the early stage was relatively high, generally between 800 and 1000°C. Most of the ones used now are medium-temperature solid oxide fuel cells, which generally operate at around 800°C. Therefore, how to effectively utilize this high temperature is also part of low-carbon environmental protection work. The commonly used solution in the prior art is to directly use this high temperature for heating, or to perform thermoelectric linkage, which has a certain effect.

[0003] However, SOFC stacks are usually not installed directly in power plants, but are configured in a separate site in a corresponding industrial park or work area. These sites are small in size and close to the factory area, so there is a lot of movement of people. In the SOFC plant areas that have been set up, workers from nearby factories often climb over the wall to enter the site out of curiosity. Although they are successfully persuaded to leave with the help of monitoring, it is still difficult to ensure the relative independence and safety of the site. At the same time, the pipes commonly used in the prior art for high-temperature heating also lack adequate protection. Summary of the invention

[0004] The present invention provides a thermal radiation type high temperature protective fence based on SOFC, which utilizes the heat energy generated during the operation of SOFC and cooperates with the protective fence to block personnel who attempt to enter the site where SOFC equipment is set up through thermal radiation without harming the corresponding personnel.

[0005] In this regard, a thermal radiation high-temperature protective fence based on SOFC is used in conjunction with a fixed SOFC site, wherein the SOFC site is connected to a conveying device consisting of multiple sections; the conveying device is divided into three layers, which are respectively a first heating pipe, a second heating pipe and a third heating pipe from the center to the periphery; wherein the first heating pipe is a liquid infusion pipe, the second heating pipe is a gas transmission pipe, and the third heating pipe is a pipe with a movable leaf plate on the side; the outer wall of the second heating pipe is tightly attached to the inner wall of the third heating pipe, and a through hole is provided on the side of the second heating pipe; graded valves are arranged between the conveying devices consisting of multiple sections, and the conveying device is provided with a fence body on the outside of the outdoor part, the fence body is hollow, and is connected to the third heating pipe, and also includes a central control system for controlling the conveying device.

[0006] Preferably, the central control system controls the graded valves at the same time, and the graded valves include a first-stage valve for controlling the switch of the first heating pipeline in each section of the conveying device, and a second-stage valve for controlling the switch of the second heating pipeline in each section of the conveying device. The graded valve is actually a valve group formed by placing two valves together, wherein the first-stage valve is a stop valve and the second-stage valve is a gate valve. The two valves are used to control the opening and closing of the first heating pipeline and the second heating pipeline respectively, and the two valves have no influence on each other.

[0007] Preferably, the first-stage valve and the second-stage valve in each section of the conveying device are both provided with a manual operating wheel, so that when an emergency occurs and the central control system cannot respond in time, the corresponding valve can be opened or closed manually.

[0008] Preferably, a metal protection strip coated with a high-temperature resistant phthalonitrile material is provided on the inner side of the third heating pipe corresponding to the valve position. The metal protection strip is used to increase air tightness and protect the valve, thereby improving the high-temperature resistance of the joint.

[0009] Preferably, a through hole is provided on the side of the second heating pipe in the conveying device corresponding to the outer side of the fence body, and the through hole is arranged below the second heating pipe, and the through hole area accounts for 10%-15% of the surface area of ​​the second heating pipe. The through hole is used to dissipate part of the heat in the second heating pipe, so that a heat radiation warning surface is formed on the outer side of the fence. If the through hole occupies too large an area, it will affect the strength of the second heating pipe, while if it is too small, the second heating pipe will not be able to provide enough heat radiation.

[0010] Preferably, the third heating pipe has air outlet grooves on both sides below the second heating pipe portion with a through hole, and a metal mesh is provided in the air outlet groove. The movable leaf plate is used to open the air outlet groove, and only one side of the air outlet groove can be opened at the same time. Such a structure can control the direction of heat radiation.

[0011] Preferably, each section of the third heating pipeline is provided with an air pressure pump on both sides, and the air pressure pump pushes the movable leaf plate to one of the left and right sides below the third heating pipeline by steam pressure. It is very convenient to obtain steam in the pipeline, which can be used as a power source to push the movable leaf plate.

[0012] Preferably, the inner diameter length of the conveying device is proportional to the number of SOFC stacks connected thereto, and each conveying device is configured with no less than 6 SOFC stacks and no more than 24 SOFC stacks. Too few SOFC stacks cannot provide sufficient heat energy, while too many SOFC stacks will result in some heat energy being unable to be used in time.

[0013] Preferably, the distance between the fence body and the conveying device is greater than 30 cm, so as to maintain a safe distance and prevent someone from getting too close to the fence body and causing actual harm.

[0014] Preferably, a camera or a biosensor is provided on the outside of the fence body, and the camera or the biosensor is also connected to the central control system.

[0015] After adopting the above technical solution, the present invention has the following advantages: when used as a fence protection, the heat energy generated during the operation of the SOFC can be used to increase the warning effect of thermal radiation on the fence, thereby preventing others from approaching. One point that needs to be explained here is that, unlike ordinary heat sources, the heat generated by the SOFC stack during operation is continuous and difficult to fully utilize, while the method described in the present invention can smoothly release part of the heat energy and improve the protective deterrent effect of the fence.

[0016] Furthermore, the present invention can also make full use of the three-layer characteristics of the conveying device, especially when transmitting heated water, the water can be kept warm by the hot air in the middle second heating pipe, which is not easy to cool down, especially in winter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of a thermal radiation type high temperature protection fence based on SOFC in the present invention.

[0019] Figure 2 This is a schematic structural diagram of a thermal radiation type high temperature protective fence conveying device based on SOFC in the present invention.

[0020] Figure 3 This is a schematic diagram of the third heating pipeline structure of a thermal radiation type high temperature protection fence transportation device based on SOFC of the present invention. DETAILED DESCRIPTION

[0021] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Solid oxide fuel cell SOFC is a new type of power generation device. Its high efficiency, pollution-free, all-solid-state structure and wide adaptability to a variety of fuel gases are the basis for its wide application. However, when serving the park, there are often idle people climbing over the wall to enter, which brings many uncertainties to SOFC. Although fences and surveillance are set up on the wall 4, many people regard it as a challenge, and the behavior of climbing over the wall to enter is repeatedly prohibited.

[0023] In this regard, the present invention provides a thermal radiation type high temperature protection fence based on SOFC, which can effectively deter illegal persons from climbing over the wall by high temperature radiation, and protect the safety of the site where SOFC is located. At the same time, the present invention makes full use of the thermal energy of SOFC itself and can work without additional energy supply. In addition, the transmission performance and safety of the existing transmission pipeline are guaranteed, achieving three goals at one stroke. The present invention is used in conjunction with a fixed SOFC station, and the SOFC station is connected to a conveying device 6 composed of multiple sections; the conveying device 6 is divided into three layers, and from the center to the periphery, they are respectively a first heat supply pipeline 1, a second heat supply pipeline 2 and a third heat supply pipeline 3; wherein the first heat supply pipeline 1 is a liquid delivery pipeline, the second heat supply pipeline 2 is a gas delivery pipeline, and the third heat supply pipeline 3 is a pipeline with a movable leaf plate 32 on the side; the outer wall of the second heat supply pipeline 2 is closely attached to the inner wall of the third heat supply pipeline 3, and a through hole is opened on the side of the second heat supply pipeline 2; a graded valve is arranged between the conveying devices 6 composed of multiple sections, and the conveying device 6 is provided with a fence body 5 on the outside of the outdoor part, the fence body 5 is hollow, and is connected to the third heat supply pipeline 3, and also includes a central control system for controlling the conveying device 6. A through hole is opened on the side of the second heat supply pipeline 2 in the conveying device 6 corresponding to the outer side of which the fence body 5 is provided, and the through hole is arranged below the second heat supply pipeline 2, and the through hole area accounts for 10%-15% of the surface area of ​​the second heat supply pipeline 2. If the area occupied by the through hole is too large, it will affect the strength of the second heating pipe 2, while if it is too small, the second heating pipe 2 will not be able to provide enough heat radiation. The third heating pipe 3 has air outlet grooves on both sides below the part of the second heating pipe 2 with the through hole, and a metal mesh 35 is arranged in the air outlet groove. The movable leaf plate 32 is used to open the air outlet groove, and only one side of the air outlet groove can be opened at the same time. Figure 3 It can be seen that each section of the third heating pipe 3 is provided with an air pressure pump on both sides, and the air pressure pump pushes the movable leaf plate 32 to one of the left and right sides below the third heating pipe 3 through steam pressure. The air pressure pump and the movable leaf plate 32 are also connected by a metal spring wire 34 to prevent the movable leaf plate 32 from hitting the air pressure pump due to excessive range and amplitude of movement, and to facilitate the return of the movable leaf plate 32 after use. The outer surface of the movable leaf plate 32 and the inner side of the third heating pipe 3 match each other for easy movement. Baffles are provided on both sides of the movable leaf plate 32 to increase the contact area with steam, making it easier to move under the action of steam. A weight block is provided above the middle of the movable leaf plate 32 to facilitate close contact with the inner wall of the third heating pipe 3 during the movement. Since it is very convenient to obtain steam in the pipe, it can be used as a power source to push the movable leaf plate 32. The movable leaf plate 32 adjusts the opening size and direction of the air outlet slot. The air outlet slot is used to adjust the direction of the heat radiation so that it can achieve the expected blocking and deterrent effect without causing harm to personnel.

[0024] like Figure 1As shown, when working, the fence body 5 and the corresponding conveying device 6 are usually arranged on the fence 4. The conveying device 6 is installed on a fixed frame. The first heating pipe 1 in the conveying device 6 is a liquid infusion pipe, which is usually connected to the boiler room to provide hot water. For some industrial infusions, it can also be connected to the corresponding heating liquid source. The second heating pipe 2 is sleeved on the outside of the first heating pipe 1 and is a gas pipe. The second heating pipe 2 is connected to the third heating pipe 3 and is a pipe with a movable leaf plate 32 on the side; the outer wall of the second heating pipe 2 is close to the inner wall of the third heating pipe 3, and the side of the second heating pipe 2 is provided with a through hole; the conveying device 6 is provided with a fence body 5 on the outside of the outdoor part, and the fence body 5 is hollow and connected to the third heating pipe 3, and also includes a central control system for controlling the conveying device 6.

[0025] The central control system also controls the graded valves, which include a first-stage valve 7 for controlling the opening and closing of the first heating pipe 1 in each section of the conveying device 6, and a second-stage valve 8 for controlling the opening and closing of the second heating pipe 2 in each section of the conveying device 6. Figure 2 As shown, the first-stage valve 7 is a stop valve, and the second-stage valve 8 is a gate valve. The two are used to control the opening and closing of the first heating pipe 1 and the second heating pipe 2. The two can share a base and have no effect on each other. The first heating pipe 1 transmits liquid, so the first-stage valve 7 is a stop valve with good sealing. The second heating pipe 2 transmits gas, which can be blocked by the gate valve without ensuring air tightness. The first-stage valve 7 and the second-stage valve 8 are normally controlled by the central control device, but both are also provided with manual operating wheels, which can be manually operated in an emergency. The inner side of the third heating pipe 3 corresponding to the valve position is provided with a metal protective strip 9 coated with high-temperature resistant phthalonitrile material. The metal protective strip 9 increases the air tightness of the top of the third heating pipe 3 on the one hand, and also increases the internal strength to ensure high temperature resistance.

[0026] When working, the first heating pipe 1 is used to transmit hot water or other high-temperature liquids. The second heating pipe 2 transmits hot steam. Since the second heating pipe 2 is wrapped around the outside of the first heating pipe 1 and the temperature of the hot steam is usually higher than that of the liquid, the liquid in the first heating pipe 1 is also kept warm during the transmission process. The hot air in the second heating pipe 2 enters the third heating pipe 3 through the through hole and is discharged to the outside through the air outlet groove. In conjunction with the fence body 5, a high-temperature protection effect with heat radiation is achieved. People approaching the fence body 5 can feel the high temperature and stop.

[0027] The distance between the fence body 5 and the conveying device 6 is greater than 30 cm, so as to maintain a safe distance, which has a good protective effect on the pipeline and the personnel who accidentally collide with it. It will not happen that the personnel directly collide with the high-temperature conveying device 6 and get burned.

[0028] The outer side of the fence body 5 is provided with a camera or a biosensor, which is also connected to the central control system. Once a person gets too close to the fence body 5 due to some accident, it is also necessary to respond in time and close the fence body 5 by closing the valve or other measures.

[0029] The inner diameter length of the conveying device 6 is proportional to the number of SOFC stacks connected to it. For the transmission device currently in use, each conveying device 6 is configured with no less than 6 SOFC stacks and no more than 24 SOFC stacks. Too few SOFC stacks cannot provide enough heat energy to maintain the operation of the present invention. Too many stacks will result in part of the heat energy not being fully utilized.

[0030] The present invention has been put into testing in a demonstration park in Hangzhou. In more than a month of use, the number of wall-climbing behaviors in the park has been reduced from 2-3 times per month to zero. It was observed from the surveillance video that people who intended to climb over the wall gave up the attempt due to high temperature radiation. In addition, no incidents endangering personal safety occurred during the whole process. The present invention has achieved the expected results.

[0031] In addition, in this process, the heat preservation effect of the hot water transported by the first heating pipe 1 is improved. The hot water previously transported to the living area can only reach a maximum temperature of 55-60 degrees Celsius at the water outlet. After replacing it with the solution recorded in the present invention, the water outlet temperature is maintained at about 65 degrees Celsius. Especially in autumn when the weather is gradually cooling down, the original pipe is greatly affected by the outside temperature. After adopting the present invention, the influence of the outside temperature change on the hot water during the transmission process can be ignored.

[0032] Although the present invention is disclosed as above with preferred embodiments, it is not intended to limit the scope of the present invention. Any person of ordinary skill in the art can make some improvements without departing from the scope of the present invention, that is, all equivalent improvements made in accordance with the present invention should be covered by the scope of the present invention. In the description of this specification, the description of reference terms "an embodiment / method", "some embodiments / methods", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic representation of the above terms does not necessarily target the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments / methods or examples in a suitable manner. In addition, without contradicting each other, a person of ordinary skill in the art can combine and combine the different embodiments / methods or examples described in this specification and the features of different embodiments / methods or examples.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A thermal radiation type high temperature protection fence based on SOFC, used in conjunction with a fixed SOFC station, wherein the SOFC station is connected to a conveying device consisting of multiple sections; Features: The conveying device is divided into three layers, which are the first heating pipe, the second heating pipe and the third heating pipe from the center to the periphery; the first heating pipe is a liquid infusion pipe, the second heating pipe is a gas transmission pipe, and the third heating pipe is a pipe with a movable leaf plate on the side; the outer wall of the second heating pipe is close to the inner wall of the third heating pipe, and the side of the second heating pipe is provided with a through hole; a graded valve is arranged between the conveying devices composed of multiple sections, the conveying device is provided with a fence body on the outside of the outdoor part, the fence body is hollow, and is connected to the third heating pipe, and also includes a central control system for controlling the conveying device, the side of the second heating pipe in the conveying device with a fence body on the outside is provided with a through hole, and the through hole is arranged below the second heating pipe, and the third heating pipe is provided with air outlet grooves on both sides below the part of the second heating pipe corresponding to the through hole in the third heating pipe, and a metal mesh is arranged in the air outlet groove, and the movable leaf plate is used to open the air outlet groove, and only one side of the air outlet groove can be opened at the same time, and the distance between the fence body and the conveying device is greater than 30 cm.

2. A thermal radiation high temperature protection fence based on SOFC according to claim 1, Features: The central control system controls the graded valves simultaneously, and the graded valves include a first-stage valve for controlling the switch of the first heating pipeline in each section of the conveying device, and a second-stage valve for controlling the switch of the second heating pipeline in each section of the conveying device.

3. A thermal radiation high temperature protection fence based on SOFC according to claim 2, Features: The first-stage valve and the second-stage valve in controlling each section of the conveying device are both provided with manual operating wheels.

4. A thermal radiation high temperature protection fence based on SOFC according to claim 2 or 3, Features: A metal protective strip coated with high-temperature resistant phthalonitrile material is provided on the inner side of the third heating pipe corresponding to the valve position.

5. The thermal radiation high temperature protection fence based on SOFC according to claim 1, Features: The through hole area accounts for 10%-15% of the surface area of ​​the second heating pipe.

6. The thermal radiation high temperature protection fence based on SOFC according to claim 1, Features: Air pressure pumps are provided on the left and right sides of each section of the third heating pipeline, and the air pressure pumps push the movable leaf plate to one of the left and right sides below the third heating pipeline through steam pressure.

7. The thermal radiation high temperature protection fence based on SOFC according to claim 1, Features: The inner diameter length of the conveying device is proportional to the number of SOFC stacks connected to it, and each conveying device is configured with no less than 6 SOFC stacks and no more than 24 SOFC stacks.

8. The thermal radiation high temperature protection fence based on SOFC according to claim 1, Features: A camera or a biosensor is arranged on the outside of the fence body, and the camera or the biosensor is also connected to the central control system.

Images