Safety protection device for producing formaldehyde
By designing containment components and suction devices to collect leaked methanol, the safety hazards caused by methanol mother liquor pump leakage were resolved, achieving safe and efficient methanol recovery and gas treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGYING LUTENG CHEMICAL TECHNOLOGY CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-21
AI Technical Summary
Leaks in the methanol mother liquor pump during use make the pump room slippery, making it difficult for staff to operate and increasing the risk of falls. Furthermore, the high volatility of methanol poses a health hazard.
A safety protection device was designed, including a containment component, an extraction pump, a suction assembly, and a gas concentration sensor, for collecting and removing leaked methanol, reducing ground pollution and gas accumulation.
It effectively recovers leaked methanol, reduces the workload of staff, lowers the risk of falls, protects staff safety, and improves operational efficiency.
Smart Images
Figure CN224142206U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of formaldehyde production, and in particular to a safety protection device for formaldehyde production. Background Technology
[0002] Formaldehyde production uses methanol as raw material. The methanol-to-formaldehyde production process consists of a series of steps, including transportation, evaporation, ternary mixing, filtration and flame arrest, conversion reaction, cooling and absorption, and product storage and transportation. In the formaldehyde production plant, the pump room uses a special methanol mother liquor pump. The methanol mother liquor pump is an industrial pump specifically designed to transport methanol mother liquor. It is used in chemical, pharmaceutical, and energy fields to achieve raw material transportation, reaction cycle, waste liquid treatment, or methanol recovery.
[0003] Currently, some methanol mother liquor pump structures still have certain shortcomings during use: due to the strong solubility and corrosiveness of methanol, coupled with factors such as fluctuations in operating conditions and improper maintenance management, the flange mechanical seal of the methanol mother liquor pump may sometimes leak. At this time, the staff need to put on protective clothing and enter the pump room in time, close the mother liquor pump pipeline valve, turn off the mother liquor pump power supply and turn on the indoor fire smoke exhaust fan, and then manually collect the mother liquor on the ground and transfer it to the mother liquor recovery tank for recycling.
[0004] During the process, the floor inside the pump room was slippery due to methanol leakage. The staff were wearing protective clothing, which made it difficult for them to move around. Therefore, they were prone to slipping and falling while handling the accident in the pump room, which could cause personal safety accidents. In addition, the workers would need to manually clean up the mother liquor on the floor afterward. Since methanol is highly volatile, it could easily cause harm to the workers' health.
[0005] Therefore, it is necessary to provide a new safety protection device for formaldehyde production to solve the above-mentioned technical problems. Utility Model Content
[0006] The technical problem solved by this utility model is to provide a safety protection device that can effectively collect methanol leaking from a mother liquor pump.
[0007] To solve the above-mentioned technical problems, the present invention provides a safety protection device for formaldehyde production, comprising: a collection component, the collection component including a base, a platform fixedly connected to the inner wall of the base, a cover fixedly connected to the bottom surface of the base, a bottom pipe fixedly connected to the bottom of the cover, an extraction pipe fixedly connected to one outer surface of the bottom pipe, and an extraction pump installed on the surface of the extraction pipe.
[0008] A enclosure mechanism is provided on the upper side of the base. The enclosure mechanism includes an enclosure component, which is fixedly connected to the top surface of the base. A movable door is hinged to the surface of the enclosure component. A suction assembly is installed on the surface of the enclosure component. The suction assembly includes a communicating vessel, which is distributed along the outer side of the enclosure component. Several suction heads are fixedly connected to the surface of the communicating vessel, and the ends of the suction heads are located on the inner side of the enclosure component. A fan is connected to the communicating vessel through a pipe, and an exhaust pipe is fixedly connected to the output end of the fan.
[0009] As a further embodiment of this utility model, a mounting base is fixedly connected to the surface of the platform, and a number of evenly distributed through holes are opened on the platform surface located outside the mounting base.
[0010] Through the above technical solution, in this device, the user installs the methanol mother liquor pump on the mounting base. When the mother liquor pump leaks during subsequent use, the outer enclosure can block the leaked mother liquor. The height of the enclosure can be adjusted according to the actual usage. At this time, the mother liquor will enter the enclosure through the through hole on the platform. The user can open the extraction pump to draw the leaked liquid into the collection tank on one side. Then, the staff pushes the collection tank to the special methanol recovery tank for recycling. This structural design can effectively recover the leaked methanol, greatly reducing the workload of the staff. At the same time, the leaked mother liquor is not likely to pollute the ground in the pump room. This makes it less likely for staff to fall or cause accidents when entering to shut off the pipeline valves, power supply and turn on the ventilation system. The design is user-friendly.
[0011] As a further embodiment of this utility model, both the enclosure component and the movable door are made of transparent material. A second limiting component is fixedly connected to the surface of the enclosure component, and a first limiting component is rotatably connected to the surface of the movable door. The first limiting component and the second limiting component are matched.
[0012] With the above technical solution, when the user enters the enclosure to close the pipeline valve, he / she can simply rotate the first limit piece and then pull the movable door, which is easy to operate.
[0013] As a further embodiment of this utility model, a valve is installed on the surface of the bottom pipe located below the extraction pipe, and support legs are symmetrically fixedly connected to the left and right surfaces of the base, with the bottom horizontal height of the bottom pipe being higher than the bottom horizontal height of the support legs.
[0014] With the above technical solution, the device is equipped with a valve on the bottom pipe. The user can open the valve to recover the cover and extract some of the residual mother liquor in the pipe.
[0015] As a further embodiment of this utility model, a collection box is provided on one side of the base, and casters are installed at the four corners of the bottom of the collection box. A handrail is fixedly connected to the front wall surface of the collection box.
[0016] The above technical solution provides a collection box equipped with casters and a handle, making it easy for users to move and transfer the mother liquor.
[0017] As a further embodiment of this utility model, a funnel is fixedly connected to the top of the collection box, and the end of the extraction pipe is located on the upper side of the funnel.
[0018] The above technical solution involves installing a funnel at the top of the collection tank to facilitate the extraction of mother liquor from the pipeline into the collection tank for storage.
[0019] As a further embodiment of this utility model, a control module and a methanol gas concentration sensor are fixedly connected to one side wall surface of the enclosure component, and the methanol gas concentration sensor, extraction pump and fan are all electrically connected to the control module.
[0020] Through the above technical solution, the device is equipped with a methanol gas concentration sensor on one side of the enclosure, which can be electrically connected to an external alarm. When it detects that the surrounding methanol gas concentration exceeds the set value, it can issue a warning through the alarm to remind the staff to pay attention. At the same time, in order to quickly reduce the methanol gas concentration inside the pump room, the device is equipped with a special suction component at the mother liquor pump, which is used in conjunction with the pump room's own fire exhaust system to effectively remove methanol gas. During operation, the exhaust pipe is connected to the external discharge pipe, and then the fan is turned on so that several suction heads located in the area with high methanol gas concentration can suck away the gas. The structural design is reasonable.
[0021] Compared with related technologies, the safety protection device for formaldehyde production provided by this utility model has the following beneficial effects:
[0022] 1. In this utility model, the user installs the methanol mother liquor pump on the mounting base. When the mother liquor pump leaks during subsequent use, the outer enclosure can block the leaked mother liquor. The height of the enclosure can be adjusted according to the actual use. At this time, the mother liquor will enter the enclosure through the through hole on the platform. The user can open the pump to draw the leaked liquid into the collection box on one side. Then, the staff will push the collection box to the special methanol recovery tank for recycling. This structural design can effectively recover the leaked methanol, greatly reducing the workload of the staff. At the same time, the leaked mother liquor is not likely to pollute the ground in the pump room. This makes it less likely for staff to fall or cause accidents when they enter to close the pipeline valves, power supply and open the ventilation system. The design is user-friendly.
[0023] 2. In this utility model, the device is equipped with a methanol gas concentration sensor on one side of the enclosure, which can be electrically connected to an external alarm. When it detects that the surrounding methanol gas concentration exceeds the set value, it can issue a warning through the alarm to remind the staff to pay attention. At the same time, in order to quickly reduce the methanol gas concentration inside the pump room, the device is equipped with a special suction component at the mother liquor pump, which is used in conjunction with the pump room's own fire exhaust system to effectively remove the methanol gas. During operation, the exhaust pipe is connected to the external discharge pipe, and then the fan is turned on so that several suction heads located in the area with high methanol gas concentration can suck away the gas. The structural design is reasonable. Attached Figure Description
[0024] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.
[0025] Figure 1 This is a schematic diagram of the overall structure of a safety protection device for formaldehyde production according to this utility model. Figure 1 ;
[0026] Figure 2 This is a schematic diagram of the overall structure of a safety protection device for formaldehyde production according to this utility model. Figure 2 ;
[0027] Figure 3 This is a partial structural breakdown diagram of a safety protection device for formaldehyde production according to this utility model. Figure 1 ;
[0028] Figure 4 This is a partial structural breakdown diagram of a safety protection device for formaldehyde production according to this utility model. Figure 2 .
[0029] Explanation of key symbols:
[0030] 1. Enclosure mechanism; 2. Collection assembly; 3. Suction assembly; 4. Methanol gas concentration sensor; 5. Movable door; 6. First limiting component; 7. Extraction pipe; 8. Collection box; 9. Enclosure component; 10. Communicating device; 11. Suction head; 12. Fan; 13. Exhaust pipe; 14. Bottom pipe; 15. Base; 16. Control module; 17. Funnel; 18. Casters; 19. Mounting base; 20. Platform; 21. Extraction pump; 22. Valve; 23. Cover; 24. Second limiting component. Detailed Implementation
[0031] Please combine Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the overall structure of a safety protection device for formaldehyde production according to this utility model. Figure 1 ; Figure 2This is a schematic diagram of the overall structure of a safety protection device for formaldehyde production according to this utility model. Figure 2 ; Figure 3 This is a partial structural breakdown diagram of a safety protection device for formaldehyde production according to this utility model. Figure 1 ; Figure 4 This is a partial structural breakdown diagram of a safety protection device for formaldehyde production according to this utility model. Figure 2 A safety protection device for formaldehyde production includes:
[0032] Collection component 2 includes a base 15, a platform 20 fixedly connected to the inner wall of the base 15, a cover 23 fixedly connected to the bottom surface of the base 15, a bottom pipe 14 fixedly connected to the bottom of the cover 23, an extraction pipe 7 fixedly connected to one side of the outer surface of the bottom pipe 14, and an extraction pump 21 installed on the surface of the extraction pipe 7.
[0033] A barrier mechanism 1 is provided on the upper side of the base 15. The barrier mechanism 1 includes a barrier member 9, which is fixedly connected to the top surface of the base 15. A movable door 5 is hinged to the surface of the barrier member 9. A suction assembly 3 is installed on the surface of the barrier member 9. The suction assembly 3 includes a connector 10, which is distributed along the outer side of the barrier member 9. Several suction heads 11 are fixedly connected to the surface of the connector 10. The ends of the suction heads 11 are located inside the barrier member 9. A fan 12 is connected to the connector 10 through a pipe. An exhaust pipe 13 is fixedly connected to the output end of the fan 12.
[0034] like Figure 1-4 As shown, a mounting base 19 is fixedly connected to the surface of the platform 20, and several evenly distributed through holes are opened on the surface of the platform 20 located outside the mounting base 19.
[0035] In this device, the user installs the methanol mother liquor pump on the mounting base 19. When the mother liquor pump leaks during subsequent use, the outer enclosure 9 can block the leaked mother liquor. The height of the enclosure 9 can be adjusted according to the actual usage. At this time, the mother liquor will pass through the through hole on the platform 20 and enter the inside of the cover 23. The user can open the extraction pump 21 to extract the leaked liquid into the collection tank 8 on one side. Then, the staff pushes the collection tank 8 to the special methanol recovery tank for recycling. This structural design can effectively recover the leaked methanol, greatly reducing the workload of the staff. At the same time, the leaked mother liquor is not likely to pollute the ground in the pump room. This makes it less likely for staff to fall or cause accidents when entering to close the pipeline valve 22, power supply and open the ventilation system. The design is user-friendly.
[0036] like Figure 1-4As shown, both the enclosure 9 and the movable door 5 are made of transparent material. The surface of the enclosure 9 is fixedly connected to the second limiting member 24, and the surface of the movable door 5 is rotatably connected to the first limiting member 6. The first limiting member 6 and the second limiting member 24 are matched.
[0037] When the user enters the enclosure 9 and closes the pipeline valve 22, he / she can simply rotate the first limit piece 6 and then pull the movable door 5, which is easy to operate.
[0038] like Figure 1-4 As shown, a valve 22 is installed on the surface of the bottom pipe 14 located below the extraction pipe 7. Support legs are symmetrically fixed to the left and right sides of the base 15. The bottom horizontal height of the bottom pipe 14 is higher than the bottom horizontal height of the support legs.
[0039] The device has a valve 22 on the bottom pipe 14, which the user can open to recover the cover 23 and extract some of the residual mother liquor in the pipe 7.
[0040] like Figure 1-4 As shown, a collection box 8 is located on one side of the base 15. Universal wheels 18 are installed at the four corners of the bottom of the collection box 8, and a handrail is fixedly connected to the front wall surface of the collection box 8.
[0041] The collection box 8 is equipped with casters 18 and a handle, making it easy for users to move it and transfer the mother liquor.
[0042] like Figure 1-4 As shown, a funnel 17 is fixedly connected to the top of the collection box 8, and the end of the extraction pipe 7 is located on the upper side of the funnel 17.
[0043] A funnel 17 is installed on the top of the collection tank 8 to facilitate the extraction of mother liquor from the pipe 7 into the collection tank 8 for storage.
[0044] like Figure 1-4 As shown, a control module 16 and a methanol gas concentration sensor 4 are fixedly connected to one side wall surface of the enclosure component 9. The methanol gas concentration sensor 4, the extraction pump 21, and the fan 12 are all electrically connected to the control module 16.
[0045] The device has a methanol gas concentration sensor 4 installed on one side of the enclosure component 9, which can be electrically connected to an external alarm. When it detects that the surrounding methanol gas concentration exceeds the set value, it can issue a warning through the alarm to remind the staff to pay attention. At the same time, in order to quickly reduce the methanol gas concentration inside the pump room, the device is equipped with a special suction component 3 at the mother liquor pump, which is used in conjunction with the pump room's own fire exhaust system to effectively remove methanol gas. During operation, the exhaust pipe 13 is connected to the external exhaust pipe, and then the fan 12 is turned on so that several sets of suction heads 11 located in areas with high methanol gas concentration can suck away the gas. The structural design is reasonable.
[0046] The working principle of the safety protection device for formaldehyde production provided by this utility model is as follows:
[0047] First step: In this device, the user installs the methanol mother liquor pump on the mounting base 19. When the mother liquor pump leaks during subsequent use, the outer enclosure 9 can block the leaked mother liquor. The height of the enclosure 9 can be adjusted according to the actual use. At this time, the mother liquor will pass through the through hole on the platform 20 and enter the inside of the cover 23. The user can open the extraction pump 21 to extract the leaked liquid into the collection box 8 on one side. Then, the staff pushes the collection box 8 to the special methanol recovery tank for recycling. This structural design can effectively recover the leaked methanol, greatly reducing the workload of the staff. At the same time, the leaked mother liquor is not likely to pollute the ground in the pump room. This makes it less likely for staff to fall or cause accidents when they enter to close the pipeline valve 22, power supply and open the ventilation system. The design is user-friendly.
[0048] The second step: The device is equipped with a methanol gas concentration sensor 4 on one side of the enclosure 9, which can be electrically connected to an external alarm. When it detects that the surrounding methanol gas concentration exceeds the set value, it can issue a warning through the alarm to remind the staff to pay attention. At the same time, in order to quickly reduce the methanol gas concentration inside the pump room, the device is equipped with a special suction component 3 at the mother liquor pump, which is used in conjunction with the pump room's own fire exhaust system to effectively remove methanol gas. During operation, the exhaust pipe 13 is connected to the external exhaust pipe, and then the fan 12 is turned on so that several sets of suction heads 11 located in areas with high methanol gas concentration can suck away the gas. The structural design is reasonable.
[0049] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.
[0050] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.
[0051] Although 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 alterations can be made to these embodiments, or they can be used directly or indirectly, without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, and they are similarly included within the patent protection scope of the present invention.
Claims
1. A safety shield for the production of formaldehyde, characterized in that The system includes a collection component (2), which includes a base (15), a platform (20) fixedly connected to the inner wall of the base (15), a cover (23) fixedly connected to the bottom surface of the base (15), a bottom pipe (14) fixedly connected to the bottom of the cover (23), an extraction pipe (7) fixedly connected to one side of the outer surface of the bottom pipe (14), and an extraction pump (21) installed on the surface of the extraction pipe (7). A enclosure mechanism (1) is provided on the upper side of the base (15). The enclosure mechanism (1) includes an enclosure component (9). The enclosure component (9) is fixedly connected to the top surface of the base (15). A movable door (5) is hinged to the surface of the enclosure component (9). A suction assembly (3) is installed on the surface of the enclosure component (9). The suction assembly (3) includes a communicating vessel (10). The communicating vessel (10) is distributed along the outer side of the enclosure component (9). A plurality of suction heads (11) are fixedly connected to the surface of the communicating vessel (10). The end of the suction head (11) is located inside the enclosure component (9). The communicating vessel (10) is connected to a fan (12) through a pipe. An exhaust pipe (13) is fixedly connected to the output end of the fan (12).
2. The safety shield for the production of formaldehyde as claimed in claim 1, characterized in that, The platform (20) is fixedly connected to the mounting base (19), and the platform (20) located outside the mounting base (19) has several evenly distributed through holes.
3. The safety shield for the production of formaldehyde as claimed in claim 2, characterized in that, The enclosure (9) and the movable door (5) are both made of transparent material. The surface of the enclosure (9) is fixedly connected to a second limiting member (24), and the surface of the movable door (5) is rotatably connected to a first limiting member (6). The first limiting member (6) and the second limiting member (24) are matched.
4. The safety shield for the production of formaldehyde as claimed in claim 3, characterized in that, A valve (22) is installed on the surface of the bottom pipe (14) located below the extraction pipe (7). Support legs are symmetrically fixed to the left and right sides of the base (15). The bottom horizontal height of the bottom pipe (14) is higher than the bottom horizontal height of the support legs.
5. The safety shield for the production of formaldehyde as claimed in claim 4, wherein, A collection box (8) is provided on one side of the base (15). The four corners of the bottom of the collection box (8) are equipped with casters (18), and a handrail is fixedly connected to the front wall surface of the collection box (8).
6. The safety shield for the production of formaldehyde as claimed in claim 5, wherein, The top of the collection box (8) is fixedly connected to a funnel (17), and the end of the extraction pipe (7) is located on the upper side of the funnel (17).
7. The safety shield for the production of formaldehyde as claimed in claim 6, characterized in that, A control module (16) and a methanol gas concentration sensor (4) are fixedly connected to one side wall surface of the enclosure component (9). The methanol gas concentration sensor (4), the extraction pump (21), and the fan (12) are all electrically connected to the control module (16).