Flange explosion-proof rain cover
By introducing structures such as an upper ventilation column, longitudinal support plate, and sealing plate into the rain cover, the problem of flashover caused by the accumulation of flammable and explosive gases is solved, achieving safe gas dissipation and preventing water erosion, thus ensuring the safety of equipment and personnel.
Patent Information
- Application Number
- CN202423303571.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing rain covers cannot effectively dissipate flammable and explosive gases leaking from high-temperature areas, and may cause flash fires during dismantling, endangering equipment and personnel safety.
An explosion-proof and rainproof flange cover was designed, comprising an upper vent column, a longitudinal support plate, and an upper sealing plate. Combined with top vents and louvers, it forms a closed space to dissipate flammable and explosive gases, and prevents water accumulation and erosion through guide channels and longitudinal baffles.
It effectively dissipates flammable and explosive gases, prevents flashover, protects equipment safety, avoids personnel inhalation of toxic gases, and ensures stable equipment operation.
Smart Images
Figure CN223524686U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to flange explosion -proof rainproof technical field, concretely is flange explosion -proof rainproof cover. BACKGROUND
[0002] In the chemical plant area, high temperature heat exchanger and high temperature flange are common equipment. Due to the particularity of equipment under high temperature environment, to prevent the adverse effects of rain and snow on high temperature position, usually make and install rain cover at the flange.
[0003] However, the existing rain cover has some problems. If flammable and explosive gas leakage occurs at the high temperature part, the gas is easy to gather at the top of the rain cover. Once encountering static electricity or open flame, it may cause flash combustion. Moreover, during the maintenance process, when the personnel remove the rain cover, the accumulated gas may be released, causing the personnel to inhale into the body, causing harm to the human body. The original intention of the design of the rain cover is to protect the high temperature equipment from the erosion of rain and snow, and to ensure the normal operation of the equipment. But from the actual situation, it fails to effectively deal with the risks brought by flammable and explosive gas leakage. This not only threatens the safety of the equipment, but also may pose a potential threat to the life and health of the personnel. SUMMARY
[0004] According to the deficiencies in the above prior art, the purpose of the utility model is to provide a flange explosion -proof rain cover, by the setting of the upper vent column, the longitudinal support plate and the upper sealing plate, while preventing the influence of rain and snow on the high temperature part, dissipating flammable and explosive toxic gas, preventing flash combustion and the danger and harm caused by personnel inhalation, by the cooperation of the top vent hole and the louver, the accumulation of toxic and harmful gas is avoided, by the cooperation of the flow guide groove and the longitudinal baffle, the erosion of the louver and the splashing of the accumulated water on the upper sealing plate are avoided.
[0005] The utility model is implemented by adopting the following technical solutions:
[0006] The flange explosion -proof rain cover comprises a flange, a semi -annular rain cover above the flange, an upper vent column above the semi -annular rain cover, a longitudinal support plate outside the upper vent column, an upper sealing plate on the longitudinal support plate, and a louver outside the upper vent column.
[0007] The longitudinal support plate and the louver are both two, and are connected with each other. The support plate, the louver, the semi -annular rain cover and the upper sealing plate form a closed space, but air can flow through the upper vent hole, the top vent hole and the louver.
[0008] The flange and the semi -annular rain cover are provided with a gas detector B, and the semi -annular rain cover is connected with a grounding wire.
[0009] The longitudinal support plate is connected with the louver, and the longitudinal support plate is internally provided with a gas detector A.
[0010] The upper sealing plate is provided with a longitudinal baffle on both sides, and the longitudinal baffle is located close to the louver and is connected with the flow guide groove.
[0011] The upper ventilation column is provided with an upper ventilation hole, and the flow guide groove is located on one side close to the longitudinal support plate.
[0012] The upper sealing plate is provided with a longitudinal baffle on both sides, and the longitudinal baffle is located close to the louver and is connected with the flow guide groove.
[0013] In order to prevent the influence of strong wind on the stability of the added flat rain cover, the longitudinal support plate should not be too high (2-3 cm is appropriate) : if the area of the rain cover is too large, a flat rain cover can be made for each hole to eliminate the influence of strong wind on the stability and strength of the flat rain cover.
[0014] Compared with the prior art, the flange explosion-proof rain cover has the advantages that:
[0015] The flange explosion-proof rain cover has the advantages that: the upper ventilation column, the longitudinal support plate and the upper sealing plate are arranged to prevent the influence of rain and snow on high-temperature parts, dissipate flammable, explosive and toxic gases, prevent flash combustion and the danger and harm caused by personnel inhaling, the toxic and harmful gases are avoided to be gathered through the cooperation of the top ventilation hole and the louver, and the erosion of the louver and splashing in of water are avoided when the water on the upper sealing plate falls through the cooperation of the flow guide groove and the longitudinal baffle. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a structure schematic view of the flange explosion-proof rain cover of the utility model;
[0017] Figure 2 It is the flange explosion-proof rain cover of the utility model Figure 1 It is an enlarged view of A in the utility model;
[0018] Figure 3 It is a top view of the upper sealing plate of the utility model;
[0019] Figure 4 It is a front view of the upper sealing plate of the utility model;
[0020] In the drawing: 1, flange; 2, semi-annular rain cover; 3, upper ventilation column; 4, longitudinal support plate; 5, upper sealing plate; 6, flow guide groove; 7, top ventilation hole; 8, upper ventilation hole; 9, water outlet; 10, louver; 11, gas detector A; 12, grounding wire; 13, gas detector B. DETAILED DESCRIPTION
[0021] In order to make the utility model purposes, technical schemes more clearly, the following will be further detailed with the drawings.
[0022] Embodiment 1
[0023] As Figure 1 Flange explosion-proof rain cover, including flange 1, the upper of flange 1 is equipped with half ring rain cover 2, the upper of half ring rain cover 2 is equipped with upper vent column 3, the outside of upper vent column 3 is equipped with longitudinal support plate 4, is equipped with upper sealing plate 5 on longitudinal support plate 4, the outside of upper vent column 3 is equipped with louver 10. Figures 2-4 As Figures 2-4 Indicated, longitudinal support plate 4 and louver 10 are two, and the two are connected with each other. Longitudinal support plate 4, louver 10, half ring rain cover 2 and upper sealing plate 5 form closed space, but air can flow through upper vent hole 8, top vent hole 7 and louver 10. Flange 1 and half ring rain cover 2 are equipped with gas detector B13 between, half ring rain cover 2 is connected with ground wire 12. Longitudinal support plate 4 is connected with louver 10, and longitudinal support plate 4 is equipped with top vent hole 7 in. Upper sealing plate 5 is equipped with flow guide groove 6 on both sides, and flow guide groove 6 is equipped with drain 9, and top vent hole 7 and the lowest end of flow guide groove 6 are in horizontal position. Upper vent column 3 is equipped with upper vent hole 8, and flow guide groove 6 is located on the side close to longitudinal support plate 4. Upper sealing plate 5 is equipped with longitudinal baffle on both sides, and longitudinal baffle is located close to louver, and longitudinal baffle is connected with flow guide groove 6.
[0024] Embodiment 2
[0025] As Figure 1 Flange explosion-proof rain cover, including flange 1, the upper of flange 1 is equipped with half ring rain cover 2, the upper of half ring rain cover 2 is equipped with upper vent column 3, the outside of upper vent column 3 is equipped with longitudinal support plate 4, is equipped with upper sealing plate 5 on longitudinal support plate 4, the outside of upper vent column 3 is equipped with louver 10. Figures 2-4 As Figures 2-4 Indicated, the height of longitudinal support plate 4 is 3 centimeters. Flange 1 and half ring rain cover 2 are equipped with gas detector B13 between, and half ring rain cover 2 is connected with ground wire 12. Longitudinal support plate 4 is connected with louver 10, and longitudinal support plate 4 is equipped with top vent hole 7 in. Upper sealing plate 5 is equipped with flow guide groove 6 on both sides, and flow guide groove 6 is equipped with drain 9, and top vent hole 7 and the lowest end of flow guide groove 6 are in horizontal position. Upper vent column 3 is equipped with upper vent hole 8, and flow guide groove 6 is located on the side close to longitudinal support plate 4. Upper sealing plate 5 is equipped with longitudinal baffle on both sides, and longitudinal baffle is located close to louver, and longitudinal baffle is connected with flow guide groove 6. Through the data comparison of gas detector A11 and gas detector B13, whether the upper vent hole is connected, and whether the louver and top vent hole play the corresponding role.
Claims
1. A flange blast and rain shield characterized by, Including flange (1), the upper side of flange (1) is equipped with half ring rain cover (2), the upper side of half ring rain cover (2) is equipped with upper vent column (3), the outer side of upper vent column (3) is equipped with longitudinal support plate (4), the upper side of longitudinal support plate (4) is equipped with upper sealing plate (5), the outer side of upper vent column (3) is equipped with louver (10).
2. The flange blast shield of claim 1, wherein, The flange (1) and the half ring rain cover (2) are provided with a gas detector B (13), and the half ring rain cover (2) is connected with a grounding wire (12).
3. The flange blast shield of claim 1, wherein, The longitudinal support plate (4) is connected with the louver (10), and the longitudinal support plate (4) is internally provided with a gas detector A (11), and the longitudinal support plate (4) is provided with a top vent hole (7).
4. The flange blast shield of claim 3, wherein, The upper sealing plate (5) is provided with a flow guide groove (6) on both sides, the flow guide groove (6) is provided with a drain (9), and the top vent hole (7) and the lowest end of the flow guide groove (6) are in a horizontal position.
5. The flange blast shield of claim 4, wherein, The upper vent column (3) is provided with an upper vent hole (8), and the flow guide groove (6) is located on one side close to the longitudinal support plate (4).
6. The flange blast shield of claim 4, wherein, The upper sealing plate (5) is provided with a longitudinal baffle on both sides, the longitudinal baffle is located close to the louver, and the longitudinal baffle is connected with the flow guide groove (6).