A laboratory simulated fouling device
By designing a simulation replacement mechanism and auxiliary mechanism for a laboratory-scaled simulation device, the problem of not being able to replace scaling materials and simulate precipitation contact in existing technologies has been solved. This achieves the effect of multi-material simulation and adjustable precipitation contact, improving the accuracy and efficiency of simulated scaling.
Patent Information
- Application Number
- CN202311096157.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-29
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2043-08-29
AI Technical Summary
Existing technologies cannot simulate the scaling of different materials on different surfaces, and it is inconvenient to replace the scaling materials. The scope of application of the devices is limited, and they cannot simulate the impact of precipitation on materials.
A laboratory-scaled simulating device was designed, comprising a simulation replacement mechanism and an auxiliary mechanism. The simulation replacement mechanism facilitates the replacement of the simulation sleeve through a clamping mechanism, while the auxiliary mechanism simulates the contact between sediment and material by adjusting the height of the net bag.
It allows for the replacement of different simulation materials as needed to simulate actual temperature conditions, improving the simulation effect of the device, facilitating disassembly and observation, enhancing the adjustability of precipitation contact, and improving the simulation comparison effect.
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Figure CN117192036B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of laboratory simulation fouling, in particular to a laboratory simulation fouling device. BACKGROUND
[0002] The simulation fouling is to simulate the fouling condition generated when the flowing medium is transported, so as to facilitate the actual processing.
[0003] According to the hot water machine fouling simulation experiment device disclosed by the Chinese patent publication No. CN203365415U, it comprises: a hard water tank connected with the heat exchange pipe to be tested through a hard water pipeline; a constant temperature water tank, and the heat exchange pipe passes through the inside of the constant temperature water tank. By injecting experimental hard water into the heat exchange pipe to be tested and using the constant temperature water tank to simulate the use environment, the hot water machine fouling simulation experiment device can experiment the fouling conditions of different shapes of heat exchange pipes under different water qualities, different flow rates and different temperatures, and provide a theoretical basis for the design of heat exchange pipes in the water system of commercial hot water units.
[0004] However, the above technical solution has the following problems: in the above technical solution, only water is simulated, other materials cannot be simulated, and the fouling material cannot be replaced conveniently. The fouling conditions of different materials (flowing medium) on different materials cannot be simulated, the device has a small range of use and poor adaptability, and the influence of sediment on the fouling of the material cannot be simulated.
[0005] To solve the above problems, the present application provides a laboratory simulation fouling device. SUMMARY
[0006] The purpose of the present application is to provide a laboratory simulation fouling device to solve the problem that it is inconvenient to replace different fouling materials according to needs and to simulate the condition that the sediment contacts the material in the prior art.
[0007] To achieve the above purpose, the present application provides the following technical solution: a laboratory simulation fouling device, which comprises a simulation device body mainly composed of a box body, a supporting leg, an inlet pipe and an outlet pipe, the box body is fixedly connected with the supporting leg outside, the inlet pipe is installed on the top of the box body, the outlet pipe is installed on the bottom of the box body, and a simulation replacement mechanism for simulating materials is installed on the simulation device body.
[0008] The simulation replacement mechanism comprises a cover, a connecting cover, an electric heating rod, four simulation sleeves and a clamping mechanism, the cover is threadedly connected with the inside of the top end of the box body, the connecting cover is threadedly connected with the inside of the cover, the electric heating rod is fixedly connected with the bottom end of the connecting cover, the electric heating rod is sleeved with the simulation sleeve outside, and the clamping mechanism is installed on the simulation sleeve.
[0009] Further, the clamping mechanism mainly comprises a mounting sleeve, a threaded sleeve, a rotating sleeve, a limiting block, a sliding rod, a spring, a sliding block, a mounting block and a fitting block, the electric heating rod is sleeved with the mounting sleeve, the threaded sleeve is threadedly connected to the top end of the mounting sleeve, the rotating sleeve is fixedly connected to the inner side of the threaded sleeve, four limiting blocks are fixedly connected to the inner side of the rotating sleeve, four sliding rods are uniformly fixedly connected to the inner side of the mounting sleeve, the sliding block is slidably connected to the outer side of the sliding rod, the spring is fixedly connected between the sliding block away from the mounting sleeve and the sliding rod, the mounting block is fixedly connected to the bottom end of the sliding block, the fitting block is fixedly connected to the side of the sliding block close to the sliding rod, the fitting block is slidably connected to the outer side of the limiting block, and the mounting block close to the electric heating rod is fixedly connected with the simulation sleeve.
[0010] Further, the cover is communicated with the feeding pipe at the top end.
[0011] Further, the simulation device body is further provided with an auxiliary mechanism for assisting operation, the auxiliary mechanism comprises a base, an inner container, a material blocking assembly and an adjusting assembly, the base is threadedly connected to the outer side of the bottom end of the box body, the base is communicated with the discharging pipe at the bottom end, the inner container is fixedly connected to the top end of the base, the inner container is slidably connected to the outer side of the box body, the material blocking assembly is installed on the top end of the base, and the adjusting assembly is installed on the material blocking assembly.
[0012] Further, the material blocking assembly mainly comprises a net bag A, a net bag B and a net bag C, the net bag A is fixedly connected to the top end of the base, the net bag B is slidably connected to the outer side of the net bag A, the net bag C is fixedly connected to the top end of the net bag B, the net bag C is slidably connected to the outer side of the box body, and a discharging hole is formed in the bottom end of the right side of the net bag A.
[0013] Further, the adjusting assembly mainly comprises a rotating handle, a threaded rod, a rotating block, a sealing block, a connecting block and a limiting rod, a rotating groove is formed in the inner side of the base, the rotating block is rotatably connected to the inner side of the rotating groove, the threaded rod is fixedly connected to the inner side of the rotating block, the rotating handle is fixedly connected to the bottom end of the threaded rod, the sealing block is fixedly connected to the outer side of the threaded rod, the sealing block is slidably connected to the bottom end of the base, the connecting blocks are fixedly connected to the left and right ends of the net bag B, the connecting block on the left end is threadedly connected to the inner side of the threaded rod, and the limiting rod on the right end is fixedly connected to the bottom end of the base.
[0014] Compared with the prior art, the present application has the following beneficial effects:
[0015] The simulation replacement mechanism is arranged, actual temperature conditions are simulated conveniently, the device is used for simulation operation conveniently, the simulation sleeve is sleeved outside the electric heating rod conveniently, the electric heating rod is protected, different simulation materials are replaced according to the detected flowing medium, and the simulation sleeve is conveniently disassembled, observed and detected, time and labor are saved.
[0016] The auxiliary mechanism is arranged, the concentrated contact of the simulation sleeve and the sediment is facilitated, the simulation effect of the device is improved according to the requirement, the sediment is discharged from the discharge hole of the mesh bag A, the operation is simple, the height of the mesh bag B is adjusted, the device can compare the concentrated contact and the non-concentrated contact of the simulation sleeve and the sediment, and the simulation comparison effect of the device is improved. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is an installation structure schematic view of a simulation device body of the laboratory simulation fouling device;
[0018] Figure 2 It is a whole structure schematic view of the laboratory simulation fouling device;
[0019] Figure 3 It is an installation structure schematic view of a simulation replacement mechanism of the laboratory simulation fouling device;
[0020] Figure 4 It is an installation structure schematic view of a clamping mechanism of the laboratory simulation fouling device;
[0021] Figure 5 It is an installation structure schematic view of a limiting block of the laboratory simulation fouling device;
[0022] Figure 6 It is an installation structure schematic view of an auxiliary mechanism of the laboratory simulation fouling device;
[0023] Figure 7 It is an installation structure schematic view of a material blocking assembly of the laboratory simulation fouling device;
[0024] Figure 8 It is an installation structure schematic view of an adjusting assembly of the laboratory simulation fouling device;
[0025] The various marks in the drawing are as follows:
[0026] 1, simulation device body; 11, box body; 12, supporting leg; 13, feeding pipe; 14, discharging pipe;
[0027] 2, analog replacement mechanism; 21, cover; 22, connecting cover; 23, electric heating rod; 24, analog sleeve; 25, clamping mechanism; 251, mounting sleeve; 252, threaded sleeve; 253, rotating sleeve; 254, limiting block; 255, sliding rod; 256, spring; 257, sliding block; 258, mounting block; 259, fitting block;
[0028] 3, auxiliary mechanism; 31, base; 32, inner container; 33, material blocking assembly; 331, mesh bag A; 332, mesh bag B; 333, mesh bag C; 34, adjusting assembly; 341, rotating handle; 342, threaded rod; 343, rotating block; 344, sealing block; 345, connecting block; 346, limiting rod. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all.
[0030] Please refer to Figures 1-8 The laboratory simulation fouling device provided by the present application comprises a simulation device body 1 mainly composed of a box body 11, a supporting leg 12, a feeding pipe 13 and a discharging pipe 14. The supporting leg 12 is fixedly connected to the outside of the box body 11. The feeding pipe 13 is installed on the top of the box body 11. The discharging pipe 14 is installed on the bottom of the box body 11. The simulation device body 1 is provided with an analog replacement mechanism 2 for simulating materials.
[0031] The simulation replacement mechanism 2 comprises a cover 21, a connecting cover 22, an electric heating rod 23, four simulation sleeves 24 and a clamping mechanism 25, the inside of the top end of the box body 11 is threadedly connected with the cover 21, the inside of the cover 21 is threadedly connected with the connecting cover 22, the bottom end of the connecting cover 22 is fixedly connected with the electric heating rod 23, the electric heating rod 23 is sleeved with the simulation sleeve 24 outside, and the simulation sleeve 24 is provided with the clamping mechanism 25, when the device is used, the cover 21 is separated from the box body 11 by rotating, then the connecting cover 22 is screwed into the cover 21 by rotating, then the simulation sleeve 24 is sleeved outside the electric heating rod 23, then the threaded sleeve 252 is driven to rotate by rotating the installation sleeve 251, the limiting block 254 is driven to rotate by rotating the rotating sleeve 253, the abutting block 259 is pushed by the limiting block 254, the sliding block 257 is slid on the sliding rod 255, then the installation block 258 is driven to be close to the electric heating rod 23 by the sliding block 257, the simulation sleeve 24 is driven to be close to the electric heating rod 23 by the installation block 258, so that the simulation sleeve 24 forms a complete sleeve, when the device is disassembled, the threaded sleeve 252 is reversed, the spring 256 pushes the sliding block 257, the simulation sleeve 24 is separated from the electric heating rod 23, then the cover 21 is screwed off and the connecting cover 22 is screwed off, then the simulation sleeve 24 of a suitable material is fixed on the installation block 258 according to the requirement, the electric heating rod 23 is heated to heat the simulation sleeve 24, the actual temperature condition is simulated, the simulation sleeve 24 is sleeved outside the electric heating rod 23, the electric heating rod 23 is protected, different simulation materials can be replaced according to the flowing medium, the device is convenient to disassemble and observe, time and labor are saved.
[0032] The clamping mechanism 25 is mainly composed of the mounting sleeve 251, the threaded sleeve 252, the rotating sleeve 253, the limiting block 254, the sliding rod 255, the spring 256, the sliding block 257, the mounting block 258 and the abutting block 259. The mounting sleeve 251 is arranged on the outer side of the electric heating rod 23. The threaded sleeve 252 is threadedly connected to the top end of the mounting sleeve 251. The rotating sleeve 253 is fixedly connected to the inner side of the threaded sleeve 252. The four limiting blocks 254 are fixedly connected to the inner side of the rotating sleeve 253. The four sliding rods 255 are uniformly and fixedly connected to the inner side of the mounting sleeve 251. The sliding block 257 is slidingly connected to the outer side of the sliding rod 255. The spring 256 is fixedly connected between the sliding block 257 side away from the mounting sleeve 251 and the sliding rod 255. The mounting block 258 is fixedly connected to the bottom end of the sliding block 257. The abutting block 259 is fixedly connected to the side of the sliding block 257 close to the sliding rod 255. The abutting block 259 is slidingly connected to the outer side of the limiting block 254. The mounting block 258 close to the electric heating rod 23 is fixedly connected with the simulation sleeve 24. When the device is in use, the cover 21 is separated from the box body 11, then the connecting cover 22 is screwed into the cover 21, then the simulation sleeve 24 is arranged on the outer side of the electric heating rod 23, then the mounting sleeve 251 is held and the threaded sleeve 252 is rotated to drive the rotating sleeve 253 and the limiting block 254 to rotate, the limiting block 254 pushes the abutting block 259 to make the sliding block 257 slide on the sliding rod 255, then the sliding block 257 drives the mounting block 258 to approach the electric heating rod 23, and the mounting block 258 drives the simulation sleeve 24 to be close to the electric heating rod 23, so that the simulation sleeve 24 forms a complete sleeve, when disassembling, the threaded sleeve 252 is reversed, the spring 256 pushes the sliding block 257 to make the simulation sleeve 24 separate from the electric heating rod 23, then the cover 21 is unscrewed and the connecting cover 22 is unscrewed, and then the simulation sleeve 24 of a suitable material is selected and fixed on the mounting block 258 according to the need.
[0033] The cover 21 is communicated with the feeding pipe 13 at the top end, and the material can enter the box body 11 through the feeding pipe 13.
[0034] The simulation device body 1 is also provided with an auxiliary mechanism 3 for auxiliary operation, which comprises a base 31, an inner container 32, a material blocking assembly 33 and an adjusting assembly 34. The base 31 is threadedly connected to the outer side of the bottom end of the box body 11, and the bottom end of the base 31 is communicated with the discharge pipe 14. The inner container 32 is fixedly connected to the top end of the base 31 and is slidingly connected to the outer side of the box body 11. The material blocking assembly 33 is installed on the top end of the base 31, and the adjusting assembly 34 is installed on the material blocking assembly 33. When the device is used, the inner container 32 should be extended into the box body 11, then the base 31 is screwed on the bottom of the box body 11, then the net bag A 331, the net bag B 332 and the net bag C 333 are sleeved on the outer side of the simulation sleeve 24, then the threaded rod 342 is rotated by rotating the handle 341, the threaded rod 342 drives the rotating block 343 to rotate in the rotating groove, the right connecting block 345 is limited by the limiting rod 346, the threaded rod 342 drives the left connecting block 345 to move up and down, thereby adjusting the height of the net bag B 332 on the net bag A 331, so as to adjust the height of the net bag C 333. The sealing block 344 seals the connection of the threaded rod 342. The material enters the box body 11 from the feeding pipe 13 and is discharged through the discharge pipe 14. The sediment in the material enters the net bag C 333 through the net bag B 332, and then enters the net bag A 331, so that the sediment is concentrated and contacted with the simulation sleeve 24. According to the need, the simulation effect of the device is improved. The sediment is discharged from the discharge hole of the net bag A 331. The operation is simple, the height of the net bag B 332 is adjusted, so that the device can compare the concentrated contact and non-concentrated contact of the sediment with the simulation sleeve 24, and the simulation comparison effect of the device is improved.
[0035] The material blocking assembly 33 is mainly composed of the net bag A 331, the net bag B 332 and the net bag C 333. The net bag A 331 is fixedly connected to the top end of the base 31, the net bag B 332 is slidingly connected to the outer side of the net bag A 331, and the net bag C 333 is fixedly connected to the top end of the net bag B 332. The net bag C 333 is slidingly connected to the outer side of the box body 11. The discharge hole is formed in the bottom end of the right side of the net bag A 331. Then the net bag A 331, the net bag B 332 and the net bag C 333 are sleeved on the outer side of the simulation sleeve 24. The material enters the box body 11 from the feeding pipe 13 and is discharged through the discharge pipe 14. The sediment in the material enters the net bag C 333 through the net bag B 332, and then enters the net bag A 331, so that the sediment is concentrated and contacted with the simulation sleeve 24. The height of the net bag B 332 is adjusted, so that the device can compare the concentrated contact and non-concentrated contact of the sediment with the simulation sleeve 24, and the simulation comparison effect of the device is improved.
[0036] The adjusting assembly 34 is mainly composed of a rotating handle 341, a threaded rod 342, a rotating block 343, a sealing block 344, a connecting block 345 and a limiting rod 346. A rotating groove is formed in the inner side of the base 31, the rotating block 343 is rotatably connected to the inner side of the rotating groove, the threaded rod 342 is fixedly connected to the inner side of the rotating block 343, the rotating handle 341 is fixedly connected to the bottom end of the threaded rod 342, the sealing block 344 is fixedly connected to the outer side of the threaded rod 342, the bottom end of the sealing block 344 is slidably connected to the base 31, the connecting block 345 is fixedly connected to the left end and the right end of the net bag B 332, the left end of the connecting block 345 is threadedly connected to the threaded rod 342, the limiting rod 346 is located at the right end, and the bottom end of the limiting rod 346 is fixedly connected to the base 31. When the device is used, the inner container 32 should be stretched into the box body 11, then the base 31 is screwed on the bottom of the box body 11, then the net bag A 331, the net bag B 332 and the net bag C 333 are sleeved outside the simulation sleeve 24, then the rotating handle 341 is rotated to drive the threaded rod 342 to rotate, the threaded rod 342 drives the rotating block 343 to rotate in the rotating groove, the limiting rod 346 limits the connecting block 345 on the right side, the threaded rod 342 drives the connecting block 345 on the left side to move up and down, thereby adjusting the height of the net bag B 332 on the net bag A 331, so as to adjust the height of the net bag C 333, and the sealing block 344 seals the connection of the threaded rod 342.
[0037] The working principle of the simulation fouling device in the laboratory of the application is as follows:
[0038] The device is used, the cover 21 is separated from the box body 11, then the connecting cover 22 is screwed into the cover 21, then the simulation sleeve 24 is sleeved on the outer side of the electric heating rod 23, then the installation sleeve 251 is held in hand, the threaded sleeve 252 is driven to rotate the rotating sleeve 253, the limiting block 254 is driven to rotate, the limiting block 254 pushes the abutting block 259, the sliding block 257 slides on the sliding rod 255, then the sliding block 257 drives the installation block 258 to be close to the electric heating rod 23, the installation block 258 drives the simulation sleeve 24 to be close to the electric heating rod 23, so that the simulation sleeve 24 forms a complete sleeve, when disassembling, the threaded sleeve 252 is reversed, the spring 256 pushes the sliding block 257, so that the simulation sleeve 24 is separated from the electric heating rod 23, then the cover 21 is unscrewed and the connecting cover 22 is unscrewed, then the appropriate material simulation sleeve 24 is selected and fixed on the installation block 258, the electric heating rod 23 is heated to heat the simulation sleeve 24, the actual temperature condition is simulated, the device is convenient for simulation operation, the simulation sleeve 24 is convenient for sleeving on the outer side of the electric heating rod 23, and the electric heating rod 23 is protected, and different simulation materials can be replaced according to the flowing medium, and the device is convenient for disassembly, observation and detection, time and labor are saved, when the device is used, the inner container 32 is inserted into the box body 11, then the base 31 is screwed on the bottom of the box body 11, then the net bag A 331, the net bag B 332 and the net bag C 333 are sleeved on the outer side of the simulation sleeve 24, then the rotating handle 341 is rotated to drive the threaded rod 342 to rotate, the threaded rod 342 drives the rotating block 343 to rotate in the rotating groove, the limiting rod 346 limits the right connecting block 345, the threaded rod 342 drives the left connecting block 345 to move up and down, thereby adjusting the height of the net bag B 332 on the net bag A 331, so as to adjust the height of the net bag C 333, the sealing block 344 seals the connection of the threaded rod 342, the material enters the box body 11 from the feeding pipe 13 and is discharged from the discharge pipe 14, the sediment in the material enters the net bag C 333 through the net bag B 332 and enters the net bag A 331, so that the sediment is concentrated and contacted with the simulation sleeve 24, the effect of the device is improved according to the need, the sediment is discharged from the discharge hole of the net bag A 331, the operation is simple, the height of the net bag B 332 is adjusted, so that the device can compare the concentrated contact and the non-concentrated contact of the sediment and the simulation sleeve 24, and the simulation comparison effect of the device is improved.
[0039] All other embodiments obtained by a person of ordinary skill in the art without creative labor based on the embodiments in the application belong to the protection scope of the application.
Claims
1. A laboratory simulation fouling device, comprising a simulation device body; The simulation device body comprises a box body (11), a support foot (12), a feed pipe (13) and a discharge pipe (14), the support foot (12) is fixedly connected outside the box body (11), the feed pipe (13) is installed on the top of the box body (11), and the discharge pipe (14) is installed on the bottom of the box body (11); A simulation replacement mechanism for simulating materials is arranged in the simulation device body; The simulation replacement mechanism comprises a cover (21), a connecting cover (22), an electric heating rod (23), four simulation sleeves (24) and a clamping mechanism (25); the cover (21) is threadedly connected to the inner side of the top end of the box body (11), the connecting cover (22) is threadedly connected to the inner side of the cover (21), the electric heating rod (23) is fixedly connected to the bottom end of the connecting cover (22), the electric heating rod (23) is sleeved with the simulation sleeve (24) outside, and the clamping mechanism (25) is installed on the simulation sleeve (24); An auxiliary mechanism (3) for auxiliary operation is further arranged on the simulation device body (1), and the auxiliary mechanism (3) comprises a base (31), an inner container (32), a material blocking assembly (33) and an adjusting assembly (34); The base (31) is threadedly connected to the outer side of the bottom end of the box body (11), the discharge pipe (14) is communicated with the bottom end of the base (31), the inner container (32) is fixedly connected to the top end of the base (31), the inner container (32) is slidably connected to the box body (11) outside, the material blocking assembly (33) is installed on the top end of the base (31), and the adjusting assembly (34) is installed on the material blocking assembly (33). The material blocking assembly (33) comprises a net bag A (331), a net bag B (332) and a net bag C (333), the net bag A (331) is fixedly connected to the top end of the base (31), the net bag B (332) is slidably connected to the outer side of the net bag A (331), the net bag C (333) is fixedly connected to the top end of the net bag B (332), the net bag C (333) is slidably connected to the box body (11) outside, and a discharge hole is formed in the bottom end of the net bag A (331) on the right side.
2. The laboratory simulated fouling apparatus of claim 1, wherein: The clamping mechanism (25) comprises a mounting sleeve (251), a threaded sleeve (252), a rotating sleeve (253), a limiting block (254), a sliding rod (255), a spring (256), a sliding block (257), a mounting block (258) and a matching block (259).
3. The laboratory simulated fouling apparatus of claim 2, wherein: The electric heating rod (23) is sleeved with the mounting sleeve (251), the top end of the mounting sleeve (251) is screw connected with the threaded sleeve (252), the inner side of the threaded sleeve (252) is fixedly connected with the rotating sleeve (253), the inner side of the rotating sleeve (253) is fixedly connected with four limiting blocks (254), the inner side of the mounting sleeve (251) is uniformly fixedly connected with four sliding rods (255), the outer side of the sliding rod (255) is slidably connected with the sliding block (257), the sliding block (257) is fixedly connected with the spring (256) between the outer side of the sliding block (257) away from the mounting sleeve (251) and the sliding rod (255), the bottom end of the sliding block (257) is fixedly connected with the mounting block (258), the side of the sliding block (257) close to the sliding rod (255) is fixedly connected with the abutting block (259), the outer side of the abutting block (259) is slidably connected with the limiting block (254), and the mounting block (258) close to the electric heating rod (23) is fixedly connected with the simulation sleeve (24).
4. The laboratory simulated fouling device according to any one of claims 1-3, characterized in that: The cover (21) is communicated with the feeding pipe (13).
5. The laboratory simulated fouling device of any one of claims 1-3, wherein: The adjusting assembly (34) comprises a rotating handle (341), a threaded rod (342), a rotating block (343), a sealing block (344), a connecting block (345) and a limiting rod (346); The bottom end of the threaded rod (342) is fixedly connected with the rotating handle (341), the outer side of the threaded rod (342) is fixedly connected with the sealing block (344), the bottom end of the sealing block (344) is slidably connected with the base (31), the left and right ends of the net bag B (332) are fixedly connected with the connecting block (345), the inner side of the connecting block (345) located at the left end is threadedly connected with the threaded rod (342), the connecting block (345) located at the right end is limited by the limiting rod (346), and the bottom end of the limiting rod (346) is fixedly connected with the base (31).
Citation Information
Patent Citations
Simulation experiment device for scaling of water heater
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Fouling test apparatus
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Method and apparatus for conducting fouling tests
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