Petrochemical engineering anti-explosion control room natural lighting roof light guide system

Abstract

The invention discloses a natural lighting roof light guide system of a petrochemical engineering anti-explosion control room, which not only considers the technical characteristic that the roof lighting efficiency is higher than that of side wall lighting, but also considers the technical characteristic that the roof explosion load is smaller than that of an outer wall under the action of the same explosion shock wave peak incident overpressure, and adopts natural lighting to the maximum extent, so that the light guide effect is better. The anti-explosion protection requirements under different explosion shock wave peak incidence overpressure working conditions can be met, emergency locking is achieved under the condition that the safety of an anti-explosion building is guaranteed, the safety of personnel and equipment in an anti-explosion control room is protected, an intelligent lighting control system can conduct automatic light supplementing according to the natural lighting intensity change condition, and the safety of the anti-explosion control room is guaranteed. Therefore, the indoor lighting is uniform and continuous.

Description

Technical Field

[0001] The invention relates to the technical field of natural light introduction, and in particular to a natural lighting roof light guide system for a petrochemical explosion-proof control room. Background Art

[0002] At present, the design of explosion-proof control rooms in petrochemical and other industries, according to the requirements of industry standards such as "Petrochemical Building Explosion-Proof Design Standard" GB / T 50779-2022, in order to protect the safety of personnel and facilities in the building and reduce the impact of external explosion accidents on production and operation, needs to be explosion-proof designed according to the explosion shock wave overpressure determined by the explosion safety assessment. When the peak incident overpressure of the explosion shock wave is greater than 1.0kPa, the building's external windows should meet the peak incident overpressure of the explosion shock wave in the location, and ordinary external windows and skylights can no longer be used; the operation hall of the petrochemical explosion-proof control room is generally a truss structure with a large span and no columns in the middle of the building according to the rationality requirements of the plane layout and explosion-proof calculation, and is surrounded by a circular corridor. Because the operation hall is too far away from the outer wall and is blocked by a circular corridor, it is impossible to use explosion-proof external windows for natural lighting. In addition, because the truss structure and pipeline bridges are densely distributed above the indoor ceiling of the operation hall, only explosion-proof skylights are set for lighting, and the light is blocked by pipelines, bridges and ceiling panels, which cannot meet the lighting requirements. Therefore, the conventionally designed petrochemical explosion-proof control room operation hall has basically no natural lighting and can only use 24-hour continuous artificial lighting.

[0003] Since the staff on duty in the petrochemical explosion-proof control room work in a 24-hour shift system, long-term staff on duty can only use artificial lighting if they cannot obtain natural light. In the long run, this will have an adverse effect on the physical and mental health of employees. Although these artificial lighting can meet people's lighting needs, due to the lack of certain radiation in the full spectrum of natural light in the indoor light, people have few opportunities to contact natural light for a long time, and related health problems will gradually appear, making it difficult to meet the physical and mental health needs of employees. Relevant studies have shown that under sufficient sunlight, the secretion levels of adrenaline, thyroid hormone and sex hormone in the human body will increase, which will effectively improve negative psychological conditions such as low mood and mental depression. There are many microorganisms attached to the surface of the human body, and sunlight can play a role in sterilization and disinfection to reduce the number of microorganisms on the surface of the body. It can also promote the body's absorption of nutrients, making the body stronger, while stimulating the immune system, synthesizing more immune cells, and enhancing the body's resistance.

[0004] Compared with artificial lighting sources, the human eye is more accustomed to natural light, and the human eye has higher visual efficacy under natural light than under artificial light. Natural light can promote the synthesis of vitamin D, which is essential for maintaining bone health and immune function. Ultraviolet B (UVB) in sunlight can convert 7-dehydrocholesterol in the skin into vitamin D3, promote the absorption of calcium and phosphorus, and contribute to the healthy growth of bones. Helps prevent and treat osteoporosis and arthritis: Adequate sunlight exposure can promote calcium absorption in bones, reduce the risk of fractures, and also has a certain relief effect on diseases such as arthritis. Improve sleep quality, natural light helps adjust the body's biological clock and maintain normal biological rhythms. Sunlight that inhibits the secretion of melatonin during the day can make people sleep better at night. Natural light helps prevent myopia, especially in children and adolescents, sufficient outdoor activity time can reduce the incidence of myopia. Under natural light, the pupil of the eye will constantly adjust its size, the eye muscles will be exercised, and it will help the normal development of the eyeball. Promote blood circulation and lymphatic detoxification: The infrared rays in natural light have a warming effect, which can promote blood circulation and lymphatic detoxification, and contribute to physical health. Natural light can promote the secretion of dopamine in the body, stimulate the brain to release serotonin, improve personal mood, and help relieve mild depression symptoms. Insufficient light is the main factor causing seasonal depression, and natural light therapy is used to relieve depression in winter. Reduce stress and anxiety. Abundant light can reduce the level of "stress hormone" cortisol in the body, which helps relieve stress and anxiety. Improve cognitive function. People's attention, memory and learning ability tend to be improved in a natural light environment.

[0005] To sum up, in the petrochemical explosion-proof control room, maximizing the use of natural lighting is not only of great significance to the physical and mental health of employees and the prevention of occupational diseases, but also can save lighting electricity and reduce energy consumption. It is of great significance to further realize the sustainable development strategy. At the same time, it has huge economic, environmental and social benefits. At present, there is a lack of relevant natural lighting product information and related technical research reports for petrochemical explosion-proof control rooms on the market.

[0006] CN106931398B discloses a flat-plate natural light introduction system, which includes a light collector, a top light guide tube assembly, an extended light guide tube assembly and a diffuser, and can introduce outdoor sunlight into indoor lighting under different weather conditions, but it still has the following limitations: 1. Due to the inherent shape limitation of the flat-plate light collector, its lighting efficiency is lower than that of the hemispherical light collector, which is not conducive to the sunlight collection of the light guide system; 2. It lacks necessary explosion-proof node design, such as the lack of explosion-proof limiters and explosion-proof glass and other protective measures, which are easy to be damaged in an explosive overpressure environment and are not safe enough; 3. There are limitations in the targeted scope of application. This patent is more suitable for the lighting needs of civil buildings, and it is difficult to meet the use requirements under flammable and explosive production safety conditions such as the petrochemical industry.

[0007] CN221375450U discloses a composite light source optical guide lighting system for explosion-proof areas. This patent realizes the use of solar lighting in explosion-proof areas under all-weather conditions by setting up a natural light light guide lighting system and a solar light source light guide system, and transmitting light between the two through a light source transmission mechanism. However, it also has certain limitations: 1. The petrochemical explosion-proof control room is an independently set explosion-proof building, and there is no non-explosion-proof area. The technical route adopted by this patent has limitations in dealing with such buildings; 2. The key nodes shown in Figure 3 of the patent are not equipped with relevant explosion-proof structures (such as explosion-proof limiters, explosion-proof glass, etc.), which does not comply with the relevant provisions of the "Petrochemical Building Explosion-Proof Design Standard" GBT50779-2022, resulting in this part becoming a weak link in explosion-proof under explosion load conditions, which has an adverse effect on the explosion-proof protection of the overall structure. Summary of the invention

[0008] In order to solve the technical problems existing in the above-mentioned prior art, the present invention provides a natural lighting roof light guide system for a petrochemical explosion-proof control room.

[0009] The invention provides a natural lighting roof light guide system for an explosion-proof control room of a petrochemical industry, comprising a skylight, an explosion-proof protection system, a light source system and a light guide system, wherein the skylight, the explosion-proof protection system and the light guide system are connected in sequence, and the light source system is arranged in the explosion-proof protection system; the explosion-proof protection system comprises an explosion-proof truncated cone, an explosion-proof cylinder, explosion-proof fixing bolts and explosion-proof glass; the explosion-proof truncated cone is fixed to the top of a concrete flange by means of explosion-proof fixing bolts; the explosion-proof cylinder is respectively connected to the explosion-proof truncated cone and the light guide system, and the explosion-proof glass is arranged on the top of the explosion-proof cylinder.

[0010] The further technical features of the present invention are: the explosion-proof protection system also includes an insulation jacket, an explosion-proof limiter and an insulation seal ring, the insulation jacket is wrapped around the outside of the explosion-proof cylinder, the explosion-proof limiter is fixed to the inside of the concrete roof through explosion-proof fixing bolts, and the insulation seal ring is connected to the insulation jacket and the explosion-proof limiter respectively. Among them, the insulation jacket can effectively solve the problem that pipes laid with metal materials are prone to cold bridges. By wrapping high-efficiency insulation materials to form an insulation barrier, heat loss can be reduced, temperature stability can be maintained, thermal expansion and contraction and condensation can be prevented, and system energy efficiency, safety and reliability can be improved; the insulation seal ring can block the roof opening, effectively isolating the infiltration of hot and cold air from the outside, preventing these areas from becoming weak links in the building's thermal insulation system, ensuring the overall air tightness and thermal performance of the roof structure, thereby improving the building's energy efficiency and comfort.

[0011] The present invention further has the following technical features: the light source system comprises a heat-insulating transmission plate, a light adjuster, a fill-light LED and a light-transmitting glass bottom seal, the heat-insulating transmission plate, the light adjuster, the fill-light LED and the light-transmitting glass bottom seal are arranged in sequence from top to bottom, and the light-transmitting glass bottom seal is arranged at the bottom of the explosion-proof cylinder.

[0012] The present invention further has the following technical features: the light guide system includes a light pipe, a diffuser, an illumination control module, a natural light intensity detector, and a fixing component, the light pipe is respectively connected to the explosion-proof cylinder and the roof of the control room through the fixing component; the diffuser is arranged at the bottom of the light pipe, and the illumination control module is arranged on the diffuser; the controller is arranged in the control room, the natural light intensity detector is respectively connected to the controller and the illumination control module, and the natural light intensity detector passes through the light pipe, the explosion-proof cylinder, and the inner side of the explosion-proof cone in sequence, and extends to the inner side of the lighting hood.

[0013] The present invention further has the following technical features: the explosion-proof truncated cone and explosion-proof cylinder adopt a three-layer composite structure, the outer layer is made of steel, the middle layer is made of fiber composite board, and the inner layer is made of high-reflectivity metal material; the light guide tube is made of high-reflectivity metal material.

[0014] A further technical feature of the present invention is that a condensate drain hole is opened on the bottom side of the explosion-proof truncated cone, and the condensate drain hole is equipped with a stainless steel explosion-proof protective valve and a sealing connecting component. The explosion-proof protective valve is selected according to the size of the explosion overpressure under different working conditions, and automatically locks the hole under explosion conditions to ensure explosion-proof integrity.

[0015] The present invention is further characterized in that a light-transmitting film-like anti-condensation coating is arranged on the inner side of the skylight.

[0016] The present invention is further characterized in that an elastic sealing material is arranged between the explosion-proof cylinder and the concrete flange for fixed sealing.

[0017] The present invention is further characterized in that it also includes a rain and condensation prevention device arranged on the outside of the explosion-proof truncated cone, and the rain and condensation prevention device includes a condensation remover and a rainwater drainage device.

[0018] The present invention is equipped with an explosion-proof protection system, which can protect the safety of personnel and equipment in the explosion-proof control room under different explosion shock wave peak incident overpressure conditions, and its structural performance can meet the national relevant petrochemical production building explosion-proof specifications and use requirements. The light guide of this system can be equipped with curved pipes and horizontal pipes, which can bypass areas with dense pipelines, efficiently transmit natural light, and provide natural light to the room through a diffuser.

[0019] The explosion-proof cylinder is tightly fitted with the reinforced concrete flange of the roof. The explosion-proof truncated cone is fixed to the reinforced concrete flange of the roof with explosion-proof fixing bolts on the outdoor side, which can effectively resist the downward pressure of the explosion shock wave; an explosion-proof limiter is set on the inside of the house, and the explosion-proof cylinder is fixed to the reinforced concrete roof panel on the indoor side with explosion-proof fixing bolts, which can effectively resist the suction and extraction force of the explosion shock wave. The strength and number of explosion-proof bolts and limiters are calculated and determined according to the peak incident overpressure of the explosion shock wave.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The present invention can meet the explosion protection requirements under different explosion shock wave peak incident overpressure conditions. According to relevant specifications, the explosion-proof buildings with on-duty personnel cannot have natural lighting indoors. The system adopts a roof natural lighting light guide system, which not only takes into account the technical characteristics that the roof lighting efficiency is higher than that of the side wall lighting, but also takes into account the technical characteristics that the roof explosion load is smaller than that of the exterior wall under the same explosion shock wave peak incident overpressure. Natural lighting is used to the greatest extent. Compared with artificial lighting, the spectrum of natural light is more continuous and rich, which is more beneficial to the physical and mental health of personnel on long-term duty in the explosion-proof control room.

[0022] 2. The present invention can ensure that the system can be urgently locked under the extreme condition of explosion in the surrounding area while ensuring the safety of the explosion-proof building, thereby protecting the safety of personnel and equipment in the explosion-proof control room. Its structural performance can meet the relevant national anti-explosion standards and usage requirements for petrochemical production buildings.

[0023] 3. The present invention is used for general lighting during the day, which can effectively reduce the electricity consumption for lighting during the day, and also reduce the energy consumption for air conditioning, which has a great effect on promoting energy conservation and emission reduction in buildings. At the same time, the system is equipped with a natural light intensity detector and a light regulator, and the intelligent lighting control system will also automatically fill in the light according to the changes in the intensity of natural lighting to ensure that the indoor lighting is uniform and continuous. The system also has a manual controller set up indoors to adjust the light intensity according to the requirements of indoor personnel.

[0024] 4. The present invention is a factory-prefabricated assembled structural system, which can be used in newly built explosion-proof control rooms, and can also be used to transform and upgrade existing explosion-proof buildings that are not equipped with natural lighting roof light guide systems, and make them into standardized special product systems, with low initial investment and subsequent maintenance costs and a short investment recovery period. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The present invention is a structural schematic diagram of a natural lighting roof light guide system for a petrochemical explosion-proof control room.

[0026] In the figure: 1. skylight; 2. explosion-proof truncated cone; 3. explosion-proof cylinder; 4. explosion-proof fixing bolts; 5. explosion-proof glass; 6. explosion-proof limiter; 7. thermal insulation jacket; 8. thermal insulation sealing ring; 9. thermal insulation transmission plate; 10. light adjuster; 11. fill light LED; 12. light-transmitting glass bottom seal; 13. light guide; 14. diffuser; 15. illumination control module; 16. natural light intensity detector; 17. controller; 18. fixing member; 19. concrete flange; 20. concrete roof; 21. elastic sealing material; 22. condensation water drain hole; 23. anti-condensation coating. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings:

[0028] like Figure 1 As shown, the skylight 1 is a fully transparent hemispherical PC material with a diameter of 0.5m to 1m. There is an anti-condensation light-transmitting film on the inside of the skylight 1. The lower end of the skylight 1 is connected to the explosion-proof truncated cone 2. The explosion-proof truncated cone 2 is fixed to the top of the concrete flange 19 by explosion-proof fixing bolts 4. The explosion-proof cylinder 3 is fixedly connected to the explosion-proof truncated cone 2. The explosion-proof glass 5 is arranged at the top of the explosion-proof cylinder 3. An elastic sealing material 21 is provided between the explosion-proof cylinder 3 and the concrete flange 19 for sealing. The explosion-proof stopper 6 is fixed to the inside of the concrete roof 20 by explosion-proof fixing bolts 4. The thermal insulation sealing ring 8 is respectively connected to the thermal insulation jacket 7 and the explosion-proof stopper 6. The explosion-proof cylinder 3 passes through the reinforced concrete roof 20. The heat-insulating transmission plate 9, the light adjuster 10, the fill light LED 11 and the light-transmitting glass bottom cover 12 are arranged on the inside of the explosion-proof cylinder 3 from top to bottom.

[0029] The lower end of the explosion-proof cylinder 3 is connected to the light pipe 13 through a fixing member 18. The light pipe 13 is composed of a standard vertical or horizontal light pipe and a bend pipe connection pipe welded together. The direction of the light pipe 13 can be adjusted according to different space layouts and the direction of other professional pipeline bridges. The bottom end of the light pipe 13 is connected to the roof of the control room through a fixing member. The diffuser 14 is arranged at the bottom end of the light pipe 13, and the illumination control module 15 is arranged on the diffuser 14; the controller 17 is arranged in the control room, and the natural light intensity detector 16 is respectively connected to the controller 17 and the illumination control module 15. The natural light intensity detector 16 passes through the light pipe 13, the explosion-proof cylinder 3, and the inside of the explosion-proof truncated cone 2 in sequence, and extends to the inside of the lighting cover 1.

[0030] The explosion-proof truncated cone 2 and the explosion-proof cylinder 3 adopt a three-layer composite structure, with the outer layer made of steel, the middle layer made of fiber composite board, and the inner layer made of high-reflectivity metal material; the light guide 13 is made of high-reflectivity metal material.

[0031] The light regulator 10, the fill light LED 11, the diffuser 14, the illumination control module 15, the natural light intensity detector 16, and the controller 17 together constitute an intelligent lighting control system, which can control the fill light LED lamp to fill light according to the real-time detected natural light intensity, and adjust the indoor lighting intensity in a linked manner to ensure sufficient and uniform illumination 24 hours a day. At the same time, it supports the indoor personnel of the control room to manually and independently choose to adjust the light intensity through the controller.

[0032] A condensation water drain hole 22 is provided at the bottom of the explosion-proof truncated table 2. The condensation water drain hole 22 is equipped with a stainless steel explosion-proof protection valve and a sealing connection component. The explosion-proof protection valve is selected according to the explosion overpressure under different working conditions, and the hole is automatically locked under the explosion condition to ensure the explosion-proof integrity. An anti-condensation coating 23 is added to the inner side of the overall light guide system to effectively prevent condensation caused by temperature differences and avoid problems such as reduced lighting efficiency caused by condensation.

[0033] The dimensions shown in the drawings of the present invention are the minimum design dimensions, and the specific engineering dimensions are determined according to the engineering design requirements. For new and renovated petrochemical explosion-proof control room projects, the dimensions of this system can be prefabricated in the factory and installed on site according to different engineering design conditions, different explosion overpressures, and different natural lighting requirements.

[0034] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. All technical solutions belonging to the principle of the present invention belong to the protection scope of the present invention. For those skilled in the art, several improvements made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A natural lighting roof light guide system for a petrochemical explosion-proof control room, characterized by: It includes a skylight, an explosion-proof protection system, a light source system and a light guide system. The skylight, the explosion-proof protection system and the light guide system are connected in sequence, and the light source system is arranged in the explosion-proof protection system; the explosion-proof protection system includes an explosion-proof truncated cone, an explosion-proof cylinder, explosion-proof fixing bolts and explosion-proof glass; the explosion-proof truncated cone is fixed on the top of the concrete flange by explosion-proof fixing bolts; the explosion-proof cylinder is respectively connected to the explosion-proof truncated cone and the light guide system, and the explosion-proof glass is arranged on the top of the explosion-proof cylinder.

2. The natural lighting roof light guide system for the petrochemical explosion-proof control room according to claim 1 is characterized by: The explosion-proof protection system also includes a thermal insulation jacket, an explosion-proof limiter and an insulation sealing ring. The thermal insulation jacket is wrapped around the outside of the explosion-proof cylinder, the explosion-proof limiter is fixed to the inside of the concrete roof by explosion-proof fixing bolts, and the insulation sealing ring is respectively connected to the thermal insulation jacket and the explosion-proof limiter.

3. The natural lighting roof light guide system for petrochemical explosion-proof control room according to claim 1 is characterized by: The light source system includes a heat-insulating transmission plate, a light regulator, a fill-light LED and a light-transmitting glass bottom seal, which are arranged in sequence from top to bottom, and the light-transmitting glass bottom seal is arranged at the bottom of the explosion-proof cylinder.

4. The natural lighting roof light guide system for the petrochemical explosion-proof control room according to claim 1 is characterized by: The light guide system includes a light guide tube, a diffuser, an illumination control module, a natural light intensity detector, and a fixing component. The light guide tube is respectively connected to the explosion-proof cylinder and the roof of the control room through the fixing component; the diffuser is arranged at the bottom of the light guide tube, and the illumination control module is arranged on the diffuser; the controller is arranged in the control room, and the natural light intensity detector is respectively connected to the controller and the illumination control module, and the natural light intensity detector passes through the light guide tube, the explosion-proof cylinder, and the inner side of the explosion-proof truncated cone in sequence, and extends to the inner side of the lighting cover.

5. The natural lighting roof light guide system for petrochemical explosion-proof control room according to claim 1 is characterized by: The explosion-proof truncated cone and explosion-proof cylinder adopt a three-layer composite structure, the outer layer is made of steel, the middle layer is made of fiber composite board, and the inner layer is made of high-reflectivity metal material; the light guide tube is made of high-reflectivity metal material.

6. The natural lighting roof light guide system for the petrochemical explosion-proof control room according to claim 1 is characterized by: A condensate drain hole is provided on the bottom side of the explosion-proof truncated cone, and the condensate drain hole is equipped with a stainless steel explosion-proof protective valve and a sealing connection component.

7. The natural lighting roof light guide system for the petrochemical explosion-proof control room according to claim 1 is characterized by: A light-transmitting film-like anti-condensation coating is arranged on the inner side of the light cover.

8. The natural lighting roof light guide system for the petrochemical explosion-proof control room according to claim 1 is characterized by: An elastic sealing material is arranged between the explosion-proof cylinder and the concrete flange for fixed sealing.

9. The natural lighting roof light guide system for petrochemical explosion-proof control room according to claim 1 is characterized by: It also includes a rain and condensation prevention device arranged on the outer side of the explosion-proof truncated cone, and the rain and condensation prevention device includes a condensation remover and a rainwater drainage device.

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