Compatibility testing device for gaseous extinguishing agent and elastomer material
By designing a gaseous fire extinguishing agent compatibility testing device that includes a reaction vessel, an oil bath jacket, and an electrical control system, the problem of insufficient testing accuracy and safety of existing devices under high pressure and high and low temperature alternating environments is solved, and efficient compatibility testing of low-boiling-point and high-boiling-point gaseous fire extinguishing agents is realized.
Patent Information
- Application Number
- CN202520323880.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing gaseous fire extinguishing agent compatibility testing devices are difficult to simultaneously meet the testing requirements of low-boiling-point and high-boiling-point gaseous fire extinguishing agents under high-pressure and high-low temperature alternating environments, and have problems with safety, simplicity and testing accuracy.
A testing device was designed, comprising a reaction vessel, an oil bath jacket, a fixture, an electrical control system, and a media input component. The device enables compatibility testing of gaseous fire extinguishing agents and elastomer materials through a main controller and an oil bath circulation control component. It has both electrical and oil control systems and can perform accurate testing under alternating high and low pressure and high and low temperature conditions.
This improves the safety, simplicity, and accuracy of compatibility testing between gaseous fire extinguishing agents and elastomer materials, and meets the testing requirements of low-boiling-point and high-boiling-point gaseous fire extinguishing agents under alternating high-pressure and high-low-temperature conditions.
Smart Images
Figure CN223784299U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of fire fighting equipment, especially relates to a gas fire extinguishing agent and elastomer material compatibility testing device. BACKGROUND
[0002] In the current fire fighting technology field, whether domestic or foreign, the research on gas fire extinguishing agent has achieved relatively fruitful results. A large number of researches focus on the fire extinguishing performance and environmental protection performance of gas fire extinguishing agent, and in-depth research is carried out on the two aspects from different angles and by using various methods, aiming at continuously optimizing the balance between the fire extinguishing efficiency and environmental protection of gas fire extinguishing agent.
[0003] However, in the research on the storage performance of gas fire extinguishing agent, although some exploratory work has been carried out on the compatibility of different solutions and gas fire extinguishing agent, these researches generally have limitations. The existing researches have not carried out systematic and comprehensive research on the high-pressure high-low-temperature alternating environment that meets the actual application conditions. It is known that according to the existing application technology, gas fire extinguishing agent must be stored in a high-pressure state in actual use. In this case, the compatibility between gas fire extinguishing agent and rubber sealing material of the storage tank becomes a key factor, which will directly determine the sealing effect, and then have a significant impact on the safety performance of the entire fire extinguishing system.
[0004] With the increasingly severe global environmental protection situation, in order to better respond to the new international environmental protection situation, in the process of screening and developing gas fire extinguishing agents that meet the requirements of environmental protection, performance and other aspects, systematic research on the compatibility of gas fire extinguishing agent and typical sealing rubber material is particularly important and indispensable. This not only helps to deeply understand the performance of gas fire extinguishing agent under actual storage conditions, but also is a key link for the smooth realization of engineering application of new gas fire extinguishing agent.
[0005] Unfortunately, the existing fire extinguishing agent compatibility device has many shortcomings. These devices cannot meet the needs of low-boiling and high-boiling gas fire extinguishing agents under high-pressure and high-low-temperature alternating test conditions. Moreover, in the testing process, the safety, simplicity, and testing accuracy are outstanding, and need to be further improved and perfected. Only by solving these problems can more reliable technical support be provided for the research and application of new gas fire extinguishing agents. UTILITY MODEL CONTENT
[0006] The utility model embodiment provides a gas fire extinguishing agent and elastomer material compatibility testing device to solve the problems in the prior art.
[0007] The utility model discloses an embodiment adopts following technical scheme: a kind of gas fire extinguishing agent and elastomer material compatibility testing device, including reaction kettle, oil bath jacket is equipped in the reaction kettle, and oil bath jacket is formed between the reaction kettle inner chamber, reaction kettle is further equipped with the jig for storing sample to be detected, oil bath circulating control piece, multiple groups of medium input piece and thermocouple are further equipped on the reaction kettle, and total controller is equipped below the reaction kettle, and oil bath circulating control piece, multiple groups of medium input piece and thermocouple are all electrically connected with total controller.
[0008] Further technical solutions, the jig includes base, main rod, toothed disc, locking piece and multiple groups of sample clamping pieces, the main rod is arranged at the top of the base and is located at the central position, the toothed disc is sleeved on the main rod and can be raised and lowered on the main rod through the regulation and control of the locking piece, the multiple groups of sample clamping pieces are evenly distributed on the toothed disc around the axis direction of the main rod, and sample code markers are sequentially provided on the toothed disc and correspond to all groups of sample clamping pieces.
[0009] Further technical solutions, each group of the sample clamping piece includes a sample chuck and a locking nut, the sample chuck is arranged on the toothed disc, and a clamping gap for accommodating the sample to be detected is arranged on the sample chuck, and the locking nut is arranged on the sample chuck, and in the locked state, the sample is fixed on the sample chuck by the locking nut.
[0010] Further technical solutions, the locking piece includes a sleeve and a locking screw, the sleeve is fixedly connected with the toothed disc and sleeved on the main rod, and the locking screw is arranged on the sleeve and tightly abuts against the main rod in the locked state.
[0011] Further technical solutions, the oil bath circulating control piece includes an oil inlet, an oil outlet and an oil bath circulating temperature controller, the oil inlet and the oil outlet are arranged on the reaction kettle, the oil bath circulating temperature controller is arranged in the oil bath jacket, the oil inlet is connected with the oil outlet of the oil bath circulating temperature controller, and the oil outlet is connected with the oil inlet of the oil bath circulating temperature controller.
[0012] Further technical solutions, the multiple groups of medium input pieces include a low-boiling-point gas fire extinguishing agent inlet, a high-boiling-point gas fire extinguishing agent liquid inlet, a nitrogen gas inlet and a pressure relief port arranged on the top of the reaction kettle, and the low-boiling-point gas fire extinguishing agent inlet, the high-boiling-point gas fire extinguishing agent liquid inlet, the nitrogen gas inlet and the pressure relief port are all communicated with the inside of the reaction kettle, and a vacuum gauge and a pressure gauge for observing real-time data are further arranged on the top of the reaction kettle.
[0013] Further technical solutions, a handle for opening is further arranged on the top of the reaction kettle.
[0014] Further technical solutions, a scale for adjusting distance is further arranged on the main rod.
[0015] The at least one technical scheme adopted in the embodiment of the utility model can achieve the following beneficial effects:
[0016] The simple and effective electric control system and oil control system and the ingenious detection jig structure can meet the environment of the compatibility test device suitable for low and high boiling point gas extinguishing agents and elastomer materials under high pressure and high and low temperature alternating conditions, the low boiling point gas extinguishing agent refers to a gas extinguishing agent with a boiling point lower than 25 DEG C and being gaseous at 25 DEG C, the high boiling point gas extinguishing agent refers to a gas extinguishing agent with a boiling point higher than 25 DEG C and being liquid at 25 DEG C, and the safety, simplicity and test precision are greatly improved during the test process. BRIEF DESCRIPTION OF DRAWINGS
[0017] The drawings described herein are used to provide further understanding of the utility model, and constitute a part of the utility model, the illustrative embodiment of the utility model and its explanation are used to explain the utility model, and do not constitute undue limitation on the utility model.
[0018] Figure 1 It is the three-dimensional structure schematic view of the utility model;
[0019] Figure 2 It is the local three-dimensional schematic view of the utility model;
[0020] Figure 3 It is the three-dimensional structure schematic view of the jig in the utility model;
[0021] Figure 4 It is the local three-dimensional schematic view of the jig in the utility model;
[0022] Reference signs
[0023] Reaction kettle 1, jig 2, base 21, main rod 22, toothed disc 23, locking piece 24, sleeve 241, locking screw 242, sample clamping part 25, sample chuck 251, locking nut 252, clamping gap 253, oil bath circulation control part 3, oil bath oil inlet 31, oil bath oil outlet 32, oil bath circulation temperature controller 33, medium input part 4, low boiling point gas extinguishing agent gas inlet 41, high boiling point gas extinguishing agent liquid inlet 42, nitrogen gas inlet 43, pressure release port 44, thermocouple 5, total controller 6, vacuum gauge 7, pressure gauge 8, handle 9. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model technical scheme will be described clearly and completely in combination with specific embodiments of the utility model and corresponding drawings below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative efforts belong to the protection scope of the utility model.
[0025] The technical scheme provided by each embodiment of the utility model will be described in detail below in combination with the drawings.
[0026] Referring to Figures 1 to 4 The utility model embodiment provides a kind of gas fire extinguishing agent and elastomer material compatibility test device, including reaction kettle 1, oil bath jacket is equipped in the reaction kettle 1, reaction kettle 1 inner cavity is formed between oil bath jacket, in detection state, reaction kettle 1 is also equipped with jig 2 for the sample to be detected storage, reaction kettle 1 is also equipped with oil bath circulation control piece 3, multiple groups of medium input piece 4 and thermocouple 5, reaction kettle 1 is equipped with total controller 6, oil bath circulation control piece 3, multiple groups of medium input piece 4 and thermocouple 5 are all electrically connected with total controller 6.
[0027] The utility model in the electric control system is electrically connected with pressure gauge 8, thermocouple 5 and oil bath circulation temperature controller 33 on reaction kettle 1 by total controller 6, the temperature and pressure measured by thermocouple 5 and pressure gauge 8 on reaction kettle 1 are transmitted to total controller 6, total controller 6 controls the switch of the above-mentioned valve, total controller 6 controls the temperature and switch cycle of oil bath circulation temperature controller 33, and the oil control system is connected in sequence by oil bath circulation temperature controller 33, oil bath circulation temperature control system, telecommunication total controller 6, and the oil bath pipeline and the oil bath inlet 31 of reaction kettle 1, oil bath oil outlet 32 are connected to form a circulating loop, and the specific program of electric control system is not the object protected by the device, so the detailed control program is not described in detail in the present application.
[0028] Specifically, the jig 2 includes base 21, main rod 22, toothed disc 23, locking piece 24 and multiple groups of sample clamping pieces 25, the main rod 22 is arranged at the top of the base 21 and is located at the central position, the toothed disc 23 is sleeved on the main rod 22 and can be raised and lowered on the main rod 22 by the regulation and control of the locking piece 24, multiple groups of sample clamping pieces 25 are evenly distributed on the toothed disc 23 around the axial direction of the main rod 22, and sample code marks are sequentially provided on the toothed disc 23 and correspond to all groups of sample clamping pieces 25.
[0029] In the embodiment, the teeth of the toothed disc 23 have sufficient spacing so that the sample strips do not overlap and affect the topography after swelling, thus destroying the accuracy of the experiment; since the sample strips have similar colors and appearances, the toothed disc 23 is provided with sample strip number markers on the teeth, which facilitates recording and prevents errors; the toothed disc 23 can be lifted and lowered to control the distance of the sample strips from the base 21; since the sample strips swell after being soaked in the fire extinguishing agent, the distance is reserved to ensure the accuracy of the experiment; the sample strips are designed to be suspended, so that the sample strips do not tilt left and right, and the environment and state of all sample strips in the fire extinguishing agent are consistent.
[0030] Specifically, each group of the sample clamping pieces 25 includes a sample clamp head 251 and a locking nut 252; the sample clamp head 251 is arranged on the toothed disc 23 and is provided with a clamping gap 253 for accommodating the sample to be detected; and the locking nut 252 is arranged on the sample clamp head 251 and fixes the sample on the sample clamp head 251 in the locked state.
[0031] Specifically, the locking piece 24 includes a sleeve 241 and a locking screw 242; the sleeve 241 is fixedly connected with the toothed disc 23 and is sleeved on the main rod 22; and the locking screw 242 is arranged on the sleeve 241 and tightly abuts against the main rod 22 in the locked state.
[0032] Specifically, the oil bath circulation control piece 3 includes an oil bath oil inlet 31, an oil bath oil outlet 32 and an oil bath circulation temperature controller 33; the oil bath oil inlet 31 and the oil bath oil outlet 32 are arranged on the reaction kettle 1; the oil bath circulation temperature controller 33 is arranged in the oil bath jacket; the oil bath oil inlet 31 is connected with an oil outlet of the oil bath circulation temperature controller 33; and the oil bath oil outlet 32 is connected with an oil inlet of the oil bath circulation temperature controller 33.
[0033] Specifically, the multiple groups of the medium input pieces 4 include a low-boiling-point gas fire extinguishing agent gas inlet 41, a high-boiling-point gas fire extinguishing agent liquid inlet 42, a nitrogen gas inlet 43 and a pressure relief port 44 arranged on the top of the reaction kettle 1; the low-boiling-point gas fire extinguishing agent gas inlet 41, the high-boiling-point gas fire extinguishing agent liquid inlet 42, the nitrogen gas inlet 43 and the pressure relief port 44 are all in communication with the inside of the reaction kettle 1; and the top of the reaction kettle 1 is further provided with a vacuum gauge 7 and a pressure gauge 8 for observing real-time data.
[0034] Specifically, the top of the reaction kettle 1 is further provided with a handle 9 for opening.
[0035] Specifically, the main rod 22 is further provided with a scale for distance adjustment, and the scale added to the upper surface of the main rod 22 facilitates the control of the distance of the suspended sample strips.
[0036] The compatibility of low-boiling-point gaseous fire extinguishing agents with elastomeric materials was tested using the above-mentioned apparatus. First, four different types of rubber were taken, with three of each type, totaling twelve specimens. These specimens were then secured in a specific order to the specimen fixture 2 using locking nuts 252 (polytetrafluoroethylene, which does not react with the fire extinguishing agent). Figure 3 (As shown); Gently place fixture 2 into the inner cavity of reactor 1, ensuring no collision with the inner wall of the container; Tighten reactor 1 using handle 9; Open the low-boiling-point gas extinguishing agent inlet valve 41 via the main controller 6 to fill reactor 1 with low-boiling-point gas extinguishing agent (octafluoro-2-butene gas extinguishing agent in this embodiment); The main control system raises the temperature of reactor 1 to 50°C by controlling the oil bath circulating temperature controller 33; After the temperature and pressure of reactor 1 stabilize at 50°C, the main controller 6 controls the solenoid valve of nitrogen inlet 43 to continue filling nitrogen and pressurizing it to 4.2 MPa. The pressure was maintained at 4.2 MPa by controlling the solenoid valves at the nitrogen inlet 43 and the pressure relief port 44. The main control system controlled the oil bath circulation temperature controller 33 to maintain the temperature of reactor 1 at 50℃ for 24 hours, then at 0℃ for 24 hours, repeating this process three times before switching to 25℃ for 24 hours, for a total of 7 days. After 7 days, the reaction ended, and the solenoid valve at the pressure relief port 44 was opened to collect the gas at the pressure relief port 44. After ensuring that the temperature and pressure of reactor 1 dropped to a safe range, the power switch was turned off. Reactor 1 was opened, the rubber sample was taken out, and reactor 1 was repeatedly cleaned and then dried. Immediately after drying, the rubber sample was characterized for quality, hardness, tensile strength, morphology, and other relevant parameters.
[0037] The compatibility of high-boiling-point gaseous fire extinguishing agents with elastomeric materials was tested using the above-mentioned apparatus. Four different types of rubber were first taken, with three of each type, totaling twelve specimens. These specimens were then secured to the specimen fixture 2 in a specific order using locking nuts 252 (polytetrafluoroethylene, which does not react with the fire extinguishing agent). Figure 3The reaction kettle 1 is placed in the reaction kettle 1, and the temperature of the reaction kettle 1 is raised to 50 DEG C by controlling the oil bath circulating temperature controller 33; after the temperature of the reaction kettle 1 is stabilized at 50 DEG C, the total controller 6 controls the electromagnetic valve of the nitrogen inlet 43 to continue to charge nitrogen to 4.2Mpa, and the pressure is maintained at 4.2MPa by controlling the electromagnetic valve of the nitrogen inlet 43 and the electromagnetic valve at the pressure relief port 44; the total control system controls the oil bath circulating temperature controller 33 to make the temperature of the reaction kettle 1 at 50 DEG C for 24 hours, 0 DEG C for 24 hours, and then switches to 25 DEG C for 24 hours, and the reaction is completed after 7 days; the electromagnetic valve at the pressure relief port 44 is opened to collect the gas at the pressure relief port 44, and the power switch is turned off after the temperature and pressure of the reaction kettle 1 are lowered to a safe range; the reaction kettle 1 is opened, and the rubber sample, the high-boiling gas extinguishing agent and the reaction kettle 1 are repeatedly washed and dried; the rubber sample is dried immediately after drying, and the quality, hardness, tensile, morphology and other related properties are characterized.
[0038] The above only describes the embodiments of the present application and is not used to limit the present application. The present application can be variously changed and modified for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the scope of the claims of the present application.
Claims
1. A device for testing the compatibility of a gaseous fire extinguishing agent with an elastomeric material, characterized in that, Including the reaction kettle (1), the oil bath jacket is equipped in the reaction kettle (1), and the oil bath jacket forms the reaction kettle (1) inner chamber between, the reaction kettle (1) is further equipped with the jig (2) for the sample to be detected storage, the reaction kettle (1) is further equipped with oil bath circulation control part (3), multiple groups of medium input part (4) and thermocouple (5), the reaction kettle (1) is below and is equipped with total controller (6), the oil bath circulation control part (3), multiple groups of medium input part (4) and thermocouple (5) are all with total controller (6) electric connection.
2. A device for testing the compatibility of a gaseous fire extinguishing agent with an elastomeric material according to claim 1, characterized in that: The jig (2) includes a base (21), a main rod (22), a toothed disc (23), a locking member (24), and multiple sets of sample clamping members (25). The main rod (22) is arranged at the top of the base (21) and at the central position. The toothed disc (23) is sleeved on the main rod (22) and can be raised and lowered on the main rod (22) through the regulation of the locking member (24). Multiple sets of sample clamping members (25) are evenly distributed on the toothed disc (23) around the axis direction of the main rod (22). Sample code markers are sequentially provided on the toothed disc (23) corresponding to all sets of sample clamping members (25).
3. A device for testing the compatibility of a gaseous fire extinguishing agent with an elastomeric material according to claim 2, characterized in that: Each set of sample clamping members (25) includes a sample collet (251) and a locking nut (252). The sample collet (251) is arranged on the toothed disc (23), and a clamping gap (253) for accommodating the sample to be detected is provided on the sample collet (251). The locking nut (252) is arranged on the sample collet (251), and in the locked state, the sample is fixed on the sample collet (251) by the locking nut (252).
4. A gas fire extinguishing agent compatibility testing apparatus according to claim 2, wherein: The locking member (24) includes a sleeve (241) and a locking screw (242). The sleeve (241) is fixedly connected with the toothed disc (23) and sleeved on the main rod (22). The locking screw (242) is arranged on the sleeve (241) and tightly abuts against the main rod (22) in the locked state.
5. A gas fire extinguishant elastomer material compatibility test apparatus according to claim 1 wherein: The oil bath circulation control part (3) includes an oil bath inlet (31), an oil bath outlet (32), and an oil bath circulation temperature controller (33). The oil bath inlet (31) and the oil bath outlet (32) are both arranged on the reaction kettle (1). The oil bath circulation temperature controller (33) is arranged in the oil bath jacket. The oil bath inlet (31) is connected with the oil outlet of the oil bath circulation temperature controller (33). The oil bath outlet (32) is connected with the oil inlet of the oil bath circulation temperature controller (33).
6. A gas fire extinguishant elastomer material compatibility test apparatus according to claim 1, wherein: Multiple sets of medium input parts (4) include a low-boiling-point gas extinguishing agent inlet (41), a high-boiling-point gas extinguishing agent inlet (42), a nitrogen gas inlet (43), and a pressure relief port (44) arranged on the top of the reaction kettle (1). The low-boiling-point gas extinguishing agent inlet (41), the high-boiling-point gas extinguishing agent inlet (42), the nitrogen gas inlet (43), and the pressure relief port (44) are all in communication with the inside of the reaction kettle (1). The top of the reaction kettle (1) is further provided with a vacuum gauge (7) and a pressure gauge (8) for observing real-time data.
7. A device for testing the compatibility of a gaseous fire extinguishing agent with an elastomeric material according to claim 6, characterized in that: The low-boiling gas extinguishing agent inlet (41), the high-boiling gas extinguishing agent inlet (42), the nitrogen gas inlet (43) and the pressure relief port (44) are all provided with electromagnetic valves, and the electromagnetic valves are electrically connected with the general controller (6).
8. A gas fire extinguishant elastomer material compatibility test apparatus according to claim 5, wherein: The top of the reaction kettle (1) is also provided with a handle (9) for opening.
9. A gas fire extinguishant elastomer material compatibility test apparatus according to claim 2, wherein: The main rod (22) is also provided with a scale for distance adjustment.