Wet-type safety device for preventing tempering of large-capacity oxyhydrogen gas
By introducing a water storage tank, a water sealing pan, a condensing coil and a float control system into the wet anti-backfire device, the problems of bubbles carrying away moisture and the lack of automatic water replenishment are solved, automatic water replenishment and uniform gas distribution are achieved, and the operating stability and convenience of the device are improved.
Patent Information
- Application Number
- CN202422552802.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-10-22
AI Technical Summary
In the traditional wet anti-flashback device, bubbles carry away water during the large-volume hydrogen and oxygen anti-flashback process, resulting in serious water leakage. The lack of an automatic water replenishment structure affects the normal operation of the device and requires manual monitoring, which is very tiring.
A wet safety device including a water storage tank, a water sealing pan, a condensing coil, a gas distributor and a float control system was designed. Through condensation and automatic water replenishment mechanisms, it prevents gas backflow and evenly distributes gas to achieve automatic water replenishment.
It effectively prevents liquid spraying, reduces the need for manual monitoring, improves the stability and convenience of device operation, and ensures the normal use of hydrogen and oxygen mixed gas.
Smart Images
Figure CN223416620U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a backfire prevention device technical field, specifically for a kind of wet type safety device for large atmospheric hydrogen oxygen gas backfire prevention. BACKGROUND
[0002] In order to prevent the hydrogen oxygen generator during use, the phenomenon of backfire occurs in the pipeline, and a wet type backfire prevention device needs to be installed, and the conventional wet type backfire prevention device still has some problems when in use, for example, in the process of large atmospheric hydrogen oxygen gas backfire prevention, the gas bubbles generated by the large atmospheric hydrogen oxygen gas into the liquid below can increase the liquid level in the device, and the gas bubbles carry a large amount of water, causing the liquid in the device to be sprayed out of the device through the gas outlet, forming a serious water outflow situation, which seriously affects the use of hydrogen oxygen mixture gas, and at the same time, the conventional wet type backfire prevention device lacks an automatic water replenishing structure, and during use, a large amount of water vapor is carried away by the gas passing through the water, in order to ensure the normal use of the backfire prevention device, the water level in the wet type backfire prevention device needs to be maintained and monitored by staff at all times, which not only causes heavy workload for the staff, but also easily causes the wet type backfire prevention device to fail to operate normally due to delayed water replenishment. SUMMARY
[0003] The utility model aims at providing a kind of wet type safety device for large atmospheric hydrogen oxygen gas backfire prevention, to solve the problems raised in the above background.
[0004] To solve the above technical problems, the utility model provides the following technical scheme: a mounting frame is provided, the inside of the mounting frame is symmetrically provided with a water storage tank, the top of the water storage tank is communicated with a neck pipe, the surface of the neck pipe is welded with a lower head, the top of the lower head is welded with an upper head, the inside of the neck pipe is fixedly connected with a water sealing disc, the number of the water sealing disc is two, the two water sealing discs are communicated with a condensing coil, the inside of the neck pipe is fixedly connected with a gas distribution plate, the surface of the neck pipe is symmetrically welded with a gas baffle, the surface of the water storage tank is provided with a water inlet connector, the inside of the water storage tank is provided with a cavity communicated with the water inlet connector, the inside of the cavity is rotatably connected with a rotating rod, the surface of the rotating rod is fixedly sleeved with a valve piece, one end of the rotating rod penetrates to the outside of the cavity and is fixedly sleeved with a connecting rod, and a floating ball is hinged to the connecting rod.
[0005] In further embodiments, the water storage tank is communicated with an air inlet pipe, and the air inlet pipe is provided with a gas guide hole, one end of the air inlet pipe penetrates into the inside of the water storage tank and is fixedly sleeved with a gas distribution disc, the other end of the air inlet pipe is provided with a one-way valve, the end of the air inlet pipe away from the one-way valve is fixedly sleeved with a plug, and a hole slot is formed in the center of the plug.
[0006] The above technical solution is adopted to facilitate the air intake of the wet anti-backfire device and prevent gas backflow, and when the gas enters the water storage tank, the incoming gas can be made more uniform under the action of the gas distribution plate, hole grooves and air guide holes.
[0007] In a further embodiment, a return pipe communicating with the lower head is installed inside the neck pipe, and one end of the return pipe passes through the interior of the water storage tank.
[0008] The above technical solution is adopted to facilitate the water condensed between the upper head and the lower head to re-enter the water storage tank through the return pipe.
[0009] In a further embodiment, a pressure relief valve is installed on the top of the upper head, and a gas outlet is connected to the surface of the upper head.
[0010] The above technical solution is adopted to facilitate pressure relief and gas discharge from between the upper head and the lower head.
[0011] In a further embodiment, the surface of the neck tube is connected to a circulating water pipe, and the number of the circulating water pipes is two.
[0012] The above technical solution is adopted to facilitate the entry and discharge of external cooling water through the circulating water pipe.
[0013] In a further embodiment, the surface of the water storage tank is connected with a connecting elbow, and the number of the connecting elbows is two, and a liquid observation pipe is connected between the two connecting elbows.
[0014] The above technical solution is adopted to facilitate staff to observe the liquid amount inside the water storage tank.
[0015] In a further embodiment, the surface of the neck tube is connected to an adjustment valve, and the water storage tank is connected to a drain valve.
[0016] The above technical solution is used to adjust and detect the liquid level inside the upper head and the lower head and to facilitate the discharge of the liquid inside the water storage tank.
[0017] In a further embodiment, a sealing ring is embedded in the surface of the valve plate, and a limit block is installed inside the cavity.
[0018] The above technical solution is adopted to improve the sealing performance between the valve plate and the cavity to prevent water leakage during sealing. The limit block can limit the rotation of the valve plate to prevent the valve plate from being in a closed state when there is too much liquid in the water storage tank, resulting in continuous water replenishment.
[0019] In a further embodiment, a blind plate is welded inside the neck tube, and an air escape groove is opened on the neck tube.
[0020] The above technical solution is adopted to seal the top opening of the neck tube and facilitate the gas to enter between the upper head and the lower head.
[0021] Compared with the prior art, the beneficial effects of the present invention are:
[0022] 1. The utility model installs two water sealing disks inside the neck tube, and a condensing coil is installed between the two water sealing disks. When the external cooling water circulates inside the chamber formed between the two water sealing disks through the circulating water pipe, the gas transported in the condensing coil can be condensed to form water droplets which are introduced into the water storage tank. With the further condensation of the gas distributor, the moisture in the gas can be precipitated to the greatest extent, thereby preventing the subsequent occurrence of liquid spraying.
[0023] 2. The utility model has a cavity installed inside the water tank, and a rotating rod installed inside the cavity. When the liquid level inside the water tank is reduced, the float follows the liquid level to decrease and drives the rotating rod to rotate under the action of the connecting rod, so that the rotating rod drives the valve plate to rotate inside the cavity, opening the water supply channel of the water inlet joint to allow external water source to enter. There is no need for staff to observe the liquid level inside the water tank at all times, thereby improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;
[0025] Figure 2 This is a partial structural cross-sectional view of an embodiment of the present utility model;
[0026] Figure 3 This is a partial structural cross-sectional view of an embodiment of the present utility model;
[0027] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle;
[0028] Figure 5 For this utility model Figure 2 Enlarged view of point B in the middle;
[0029] Figure 6 For this utility model Figure 3 Enlarged view of point C in the middle;
[0030] Figure 7 This is a schematic diagram of the installation of the air intake pipe and the blocking block in the present invention;
[0031] Figure 8 This is a schematic diagram of the central gas distribution plate of the utility model.
[0032] In the figure: 1. Mounting frame; 2. Water storage tank; 3. Neck pipe; 4. Lower head; 5. Upper head; 6. Water sealing pan; 7. Condensing coil; 8. Air distributor; 9. Air baffle; 10. Water inlet joint; 11. Cavity; 12. Rotating rod; 13. Valve plate; 14. Connecting rod; 15. Float; 16. Inlet pipe; 17. One-way valve; 18. Block; 19. Return pipe; 20. Pressure relief valve; 21. Air outlet nozzle; 22. Circulating water pipe; 23. Connecting elbow; 24. Liquid viewing pipe; 25. Adjusting valve; 26. Drain valve; 27. Sealing ring; 28. Limit block; 29. Blind plate; 30. Air groove; 31. Air distributor. DETAILED DESCRIPTION
[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0034] Example 1
[0035] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8As shown, a wet safety device for preventing backfire of large amounts of hydrogen and oxygen is provided, comprising a mounting frame 1, a water storage tank 2 is symmetrically mounted inside the mounting frame 1, a neck tube 3 is connected to the top of the water storage tank 2, a lower head 4 is welded to the surface of the neck tube 3, an upper head 5 is welded to the top of the lower head 4, a water sealing disk 6 is fixedly connected to the inside of the neck tube 3, there are two water sealing disks 6, a condensing coil 7 is connected between the two water sealing disks 6, an air distributor 8 is fixedly connected to the inside of the neck tube 3, an air baffle 9 is symmetrically welded to the surface of the neck tube 3, an air inlet pipe 16 is connected to the water storage tank 2, and an air guide hole is opened on the air inlet pipe 16, one end of the air inlet pipe 16 passes through the inside of the water storage tank 2 and is fixedly sleeved with an air distributor 31, and the air inlet pipe 1 6 is provided with a one-way valve 17 at the other end, and a block 18 is fixedly connected to the end of the air inlet pipe 16 away from the one-way valve 17, and a hole groove is provided at the center of the block 18. Through the arrangement of the air inlet pipe 16, the air distribution plate, the one-way valve 17 and the block 18, it is convenient for the wet anti-backfire device to intake air and prevent gas backflow, and when the gas enters the water storage tank 2, the incoming gas can be made more uniform under the action of the air distribution plate 31, the hole groove and the air guide hole. A return pipe 19 connected to the lower head 4 is installed inside the neck tube 3, and one end of the return pipe 19 passes through the interior of the water storage tank 2. Through the arrangement of the return pipe 19, it is convenient for the condensed water between the upper head 5 and the lower head 4 to re-enter through the return pipe 19. Entering the interior of the water storage tank 2, a pressure relief valve 20 is installed on the top of the upper head 5, and the surface of the upper head 5 is connected with an air outlet nozzle 21. Through the setting of the pressure relief valve 20 and the air outlet nozzle 21, it is convenient to relieve pressure and facilitate the discharge of gas from between the upper head 5 and the lower head 4. The surface of the neck tube 3 is connected with a circulating water pipe 22. There are two circulating water pipes 22. Through the setting of the circulating water pipe 22, it is convenient for external cooling water to enter and discharge through the circulating water pipe 22. The surface of the neck tube 3 is connected with an adjusting valve 25, and the water storage tank 2 is connected with a drain valve 26. The adjusting valve 25 and the drain valve 26 are used to adjust and detect the liquid level inside the upper head 5 and the lower head 4 and facilitate the inside of the water storage tank 2. The liquid is discharged, a blind plate 29 is welded inside the neck tube 3, and an air groove 30 is opened on the neck tube 3. The top opening of the neck tube 3 is sealed through the blind plate 29 and the air groove 30, and the gas is conveniently introduced between the upper head 5 and the lower head 4. Two water sealing disks 6 are installed inside the neck tube 3, and a condensing coil 7 is installed between the two water sealing disks 6. When the external cooling water circulates inside the chamber formed between the two water sealing disks 6 through the circulating water pipe 22, the gas transported in the condensing coil 7 can be condensed to form water droplets which are introduced into the water storage tank 2. With the further condensation of the gas distributor 8, the moisture in the gas can be precipitated to the greatest extent to prevent the subsequent liquid spraying.
[0036] Brief description of the usage process: After the gas enters the water storage tank 2 through the air inlet pipe 16, the gas carries water through the water sealing plate 6 and enters the condensing coil 7. When the external cooling water circulates inside the chamber formed between the two water sealing plates 6 through the circulating water pipe 22, the gas transported in the condensing coil 7 can be condensed to form water droplets that are introduced into the water storage tank 2. With the further condensation of the gas distributor 8, the water in the gas is precipitated to the greatest extent to prevent the subsequent occurrence of liquid spraying.
[0037] See also Figure 1 、 Figure 3 and Figure 4 As shown, a wet safety device for preventing backfire of large amounts of hydrogen and oxygen is provided. A water inlet joint 10 is installed on the surface of the water tank 2. A cavity 11 connected to the water inlet joint 10 is installed inside the water tank 2. A rotating rod 12 is rotatably connected to the inside of the cavity 11. A valve plate 13 is fixedly sleeved on the surface of the rotating rod 12. One end of the rotating rod 12 passes through the outside of the cavity 11 and is fixedly sleeved with a connecting rod 14. A float 15 is hinged on the connecting rod 14. A connecting elbow 23 is connected to the surface of the water tank 2, and there are two connecting elbows 23. A liquid observation pipe 24 is connected between the two connecting elbows 23. Through the connecting elbow 23 and the liquid observation pipe 24, it is convenient for staff to observe the liquid amount inside the water tank 2. A sealing ring 27 is embedded in the surface of the valve plate 13. The interior of the cavity 11 is limited. The positioning block 28 passes through the sealing ring 27 and the limit block 28 to improve the sealing performance between the valve plate 13 and the cavity 11 to prevent water leakage during sealing. The limit block 28 can limit the rotation of the valve plate 13 to prevent the valve plate 13 from not being in a closed state when the liquid volume inside the water tank 2 is too much, resulting in continuous water replenishment. By installing a cavity 11 inside the water tank 2, a rotating rod 12 is installed inside the cavity 11. When the liquid volume inside the water tank 2 decreases, the float 15 follows the decrease in liquid volume and drives the rotating rod 12 to rotate under the action of the connecting rod 14, so that the rotating rod 12 drives the valve plate 13 to rotate inside the cavity 11, opening the water supply channel of the water inlet joint 10 for external water source to enter. There is no need for staff to observe the liquid volume inside the water tank 2 at all times, thereby improving convenience.
[0038] Brief description of the usage process: When the liquid level inside the water storage tank 2 decreases, the float 15 follows the drop in liquid level and drives the rotating rod 12 to rotate under the action of the connecting rod 14, so that the rotating rod 12 drives the valve plate 13 to rotate inside the cavity 11, opening the water supply channel of the water inlet joint 10 to allow external water source to enter. When the water level rises, the float 15 resets and drives the valve plate 13 to reset. There is no need for staff to observe the liquid level inside the water storage tank 2 at all times, which improves convenience.
[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A wet safety device for preventing flashback of large amounts of hydrogen and oxygen, comprising a mounting frame (1), characterized in that: A water storage tank (2) is symmetrically mounted inside the mounting frame (1), the top of the water storage tank (2) is connected to a neck tube (3), a lower head (4) is welded to the surface of the neck tube (3), an upper head (5) is welded to the top of the lower head (4), a water sealing disk (6) is fixedly connected to the inside of the neck tube (3), the number of the water sealing disks (6) is two, a condensing coil (7) is connected between the two water sealing disks (6), an air distribution plate (8) is fixedly connected to the inside of the neck tube (3), and the surface of the neck tube (3) is fixedly connected to the neck tube (3). An air baffle (9) is symmetrically welded on the surface, a water inlet joint (10) is installed on the surface of the water storage tank (2), a cavity (11) connected to the water inlet joint (10) is installed inside the water storage tank (2), a rotating rod (12) is rotatably connected inside the cavity (11), a valve plate (13) is fixedly sleeved on the surface of the rotating rod (12), one end of the rotating rod (12) passes through the outside of the cavity (11) and is fixedly sleeved on a connecting rod (14), and a float (15) is hinged on the connecting rod (14).
2. A wet safety device for preventing flashback of large amounts of hydrogen and oxygen according to claim 1, characterized in that: The water storage tank (2) is connected to an air intake pipe (16), and an air guide hole is provided on the air intake pipe (16). One end of the air intake pipe (16) passes through the interior of the water storage tank (2) and is fixedly sleeved with an air distribution plate (31). The other end of the air intake pipe (16) is installed with a one-way valve (17). The end of the air intake pipe (16) away from the one-way valve (17) is fixedly sleeved with a blocking block (18), and a hole groove is provided at the center of the blocking block (18).
3. A wet safety device for preventing flashback of large amounts of hydrogen and oxygen according to claim 1, characterized in that: A water return pipe (19) communicating with the lower head (4) is installed inside the neck pipe (3), and one end of the water return pipe (19) penetrates into the interior of the water storage tank (2).
4. A wet safety device for preventing flashback of large amounts of hydrogen and oxygen according to claim 1, characterized in that: A pressure relief valve (20) is installed on the top of the upper sealing head (5), and a gas outlet nozzle (21) is connected to the surface of the upper sealing head (5).
5. A wet safety device for preventing flashback of large amounts of hydrogen and oxygen according to claim 1, characterized in that: The surface of the neck tube (3) is connected to a circulating water pipe (22), and the number of the circulating water pipes (22) is two.
6. A wet safety device for preventing flashback of large amounts of hydrogen and oxygen according to claim 1, characterized in that: The surface of the water storage tank (2) is connected to a connecting elbow (23), and the number of the connecting elbows (23) is two, and a liquid observation pipe (24) is connected between the two connecting elbows (23).
7. A wet safety device for preventing flashback of large amounts of hydrogen and oxygen according to claim 1, characterized in that: The surface of the neck tube (3) is connected to an adjustment valve (25), and the water storage tank (2) is connected to a drain valve (26).
8. A wet safety device for preventing flashback of large amounts of hydrogen and oxygen according to claim 1, characterized in that: A sealing ring (27) is embedded in the surface of the valve plate (13), and a limiting block (28) is installed inside the cavity (11).
9. A wet safety device for preventing flashback of large amounts of hydrogen and oxygen according to claim 1, characterized in that: A blind plate (29) is welded inside the neck tube (3), and an air escape groove (30) is provided on the neck tube (3).