Liquid isolator
By using a double-layer elastic isolation membrane and fluorescent material, the problem of easy breakage of traditional liquid isolators is solved, achieving safety and accuracy of oil-water isolation and ensuring the integrity of the pressure measuring instrument.
Patent Information
- Application Number
- CN202520388040.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-03-06
AI Technical Summary
Traditional liquid isolators use a single-layer elastic oil-resistant film that is prone to rupture, allowing oil to enter oil-free pressure testing instruments and causing irreversible damage.
The system employs a double-layer elastic isolation membrane structure, combined with fluorescent materials and an observation window, to ensure oil-water isolation while monitoring the membrane's integrity, and to promptly close the manual shut-off valve in case the bottom membrane ruptures.
It improves detection safety, prevents oil from corroding oil-free instruments, and ensures measurement accuracy and equipment integrity.
Smart Images
Figure CN223741831U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of liquid isolation, specifically relates to a liquid isolator. BACKGROUND
[0002] Some oil-inhibited pressure measuring instruments, such as oxygen pressure gauges, must avoid grease pollution due to their specific use environment and medium requirements, however, these instruments still need to be able to accurately measure the pressure of oil pipelines, and when measuring the pressure of oil pipelines, an isolating device can be used to isolate the pressure measuring instrument from the measured fluid. This isolating device can be a sealed container or pipeline filled with a medium compatible with the measured fluid (such as water, glycerol, etc.), but does not contain grease, and by measuring the pressure of the medium in the isolating device, the pressure of the measured fluid can be indirectly obtained. The conventional liquid isolator only separates oil by a layer of elastic oil-resistant film, and the oil film has a risk of rupture when the pressure is too high. Due to the single-layer elastic oil-resistant film, the oil will instantly enter the oil-inhibited pressure measuring instrument, causing irreversible damage, which needs to be improved. Therefore, we propose a liquid isolator. SUMMARY
[0003] In view of the above technical problems in the related art, the utility model provides a liquid isolator, which can solve the above problems.
[0004] To achieve the above technical purposes, the technical scheme of the utility model is as follows:
[0005] A liquid isolator, comprising an isolation cavity shell A and an isolation cavity shell B, the isolation cavity shell A is threadedly fixed to the top of the isolation cavity shell B, a joint A is arranged at the top end of the isolation cavity shell A, a joint B is arranged at the bottom end of the isolation cavity shell B, a separation membrane structure is arranged between the isolation cavity shell A and the isolation cavity shell B, the separation membrane structure comprises a compression ring seat, an elastic separation membrane A fixed to the inner wall of the compression ring seat, and an elastic separation membrane B, a fluorescent substance is filled between the elastic separation membrane A and the elastic separation membrane B, an observation window A is fixedly arranged on the surface of the isolation cavity shell A, and an observation window B is fixedly arranged on the surface of the isolation cavity shell B.
[0006] Further, the elastic separation membrane A is located directly above the elastic separation membrane B, the circumferential surface of the elastic separation membrane A and the elastic separation membrane B is in sealing connection with the compression ring seat, and the gap between the elastic separation membrane A and the elastic separation membrane B is 2mm.
[0007] Further, the elastic separation membrane A and the elastic separation membrane B are both oil-resistant rubber membranes.
[0008] Further, the fluorescent substance comprises a transparent shell and a fluorescent liquid filled in the transparent shell.
[0009] Further, the bottom of the compression ring seat is fixedly provided with a mesh frame, and the aperture of the mesh frame is 1mm smaller than the diameter of the fluorescent object.
[0010] Further, a manual stop valve is arranged in series communication between the joint A and the isolation cavity shell A.
[0011] The application has the beneficial effects that: the device is provided with double-layer elastic isolation membranes for oil-water isolation, and the detection safety is improved; meanwhile, the observation windows are arranged to cooperate with the fluorescent objects to observe the integrity of the double-layer elastic isolation membranes; when the bottom elastic isolation membrane cracks, the top elastic isolation membrane can still realize oil-water isolation, and the fluorescent objects will be deposited at the mesh frame along the cracks; the manual stop valve can be closed in time according to the actual situation, and the problem that the oil-inhibited instrument is damaged due to oil erosion during the detection process is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.
[0013] The present application will be further described in detail below according to the drawings.
[0014] Fig. 1 is a schematic view of the external structure of the liquid isolator;
[0015] Fig. 2 is a sectional view of the internal structure of the liquid isolator;
[0016] Fig. 3 is a schematic view of the isolation membrane structure.
[0017] In the drawings:
[0018] 1, isolation cavity shell A; 101, joint A; 2, isolation cavity shell B; 201, threaded ring; 202, joint B; 3, observation window A; 4, observation window B; 5, isolation membrane structure; 501, compression ring seat; 502, elastic isolation membrane A; 503, fluorescent object; 504, elastic isolation membrane B; 505, mesh frame; 6, manual stop valve. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.
[0020] As Figs. 1-3 shown, according to the utility model discloses a kind of liquid isolator, including isolation cavity shell A1, isolation cavity shell B2, isolation cavity shell A1 is fixed with isolation cavity shell B2 top, isolation cavity shell A1 top end is connected with joint A101, isolation cavity shell B2 bottom end is connected with joint B202, isolation cavity shell A1 with isolation cavity shell B2 between being provided with isolation membrane structure 5, isolation membrane structure 5 includes compression ring seat 501, fixed in the inner wall of compression ring seat 501 elastic isolation membrane A502, elastic isolation membrane B504, elastic isolation membrane A502 with elastic isolation membrane B504 Between filling fluorescent substance 503, isolation cavity shell A1 surface is fixed with observation window A3, isolation cavity shell B2 surface is fixed with observation window B4.
[0021] Example one: isolation cavity shell B2 top end is integrally formed with screw thread cooperation ring 201, isolation cavity shell A1 bottom outer circumferential surface is provided with outer thread matched with screw thread cooperation ring 201, isolation cavity shell B2 with isolation cavity shell A1 cooperation cavity needs to place isolation membrane structure 5 at isolation cavity shell B2 top end, after isolation cavity shell A1 with isolation cavity shell B2 is screwed, isolation cavity shell A1 with isolation cavity shell B2 can compress compression ring seat 501 and limit, the joint B202 of isolation cavity shell B2 bottom is used for cooperation with oil pipeline, isolation cavity shell A1 is filled with pure water, the joint A101 of isolation cavity shell A1 top end is connected with pressure detection equipment, when pressure detection, pipeline oil can move double-layer elastic isolation membrane and protrude upwards, so that corresponding numerical pressure is generated in isolation cavity shell A1, elastic isolation membrane is oil-resistant elastic membrane, oil cannot penetrate, set double-layer elastic isolation membrane to carry out oil-water isolation, not only protect detection equipment, while avoid the water in isolation cavity shell A1 to mix in oil, set observation window A3 to observe the state of double-layer elastic isolation membrane protrusion, set observation window B to observe whether there is fluorescent substance 503 deposition in net bag frame 505, when bottom elastic isolation membrane cracks, top elastic isolation membrane can still realize oil-water isolation, and fluorescent substance 503 will be deposited in net bag frame 505 along with crack, avoid fluorescent substance 503 to mix in oil circuit.
[0022] In preferred technical solutions, elastic isolation membrane A502 is located directly above elastic isolation membrane B504, the circumferential surface of elastic isolation membrane A502 and elastic isolation membrane B504 is sealed with compression ring seat 501, the gap between elastic isolation membrane A502 and elastic isolation membrane B504 is 2mm, double-layer elastic isolation membrane carries out oil-water isolation to improve detection safety, set gap to place fluorescent substance 503.
[0023] In preferred technical solutions, elastic isolation membrane A502 and elastic isolation membrane B504 are oil-resistant rubber membrane, such as nitrile rubber or fluorine rubber.
[0024] In the preferred technical solution, the fluorescent object 503 comprises a transparent shell and a fluorescent liquid filled in the transparent shell, and the transparent shell is used to avoid the fluorescent liquid from leaking out and polluting the oil path.
[0025] In the preferred technical solution, the bottom of the compression ring seat 501 is fixedly provided with a mesh frame 505, the aperture of the mesh frame 505 is 1mm smaller than the diameter of the fluorescent object 503, and the mesh frame 505 is used to hold the deposited fluorescent object 503 and avoid the fluorescent object 503 from mixing into the oil path.
[0026] In the preferred technical solution, a manual stop valve 6 is arranged in series communication between the joint A101 and the isolation cavity shell A1, and the manual stop valve 6 can be closed in time according to the actual situation, so as to avoid the problem that the oil exclusion instrument is damaged due to the erosion of oil liquid during the detection process.
[0027] In summary, the liquid isolator of the oil exclusion pressure detection instrument for detecting the pressure of the oil path is provided in the embodiment, compared with the traditional liquid isolator, the double-layer elastic isolation film is arranged for oil-water isolation in the embodiment, the safety is improved, the observation window is arranged to cooperate with the fluorescent object 503 to observe the integrity of the double-layer elastic isolation film, the top elastic isolation film can still realize oil-water isolation when the bottom elastic isolation film is cracked, the fluorescent object 503 will deposit at the mesh frame 505 along with the crack, the manual stop valve 6 can be closed in time according to the actual situation, so as to avoid the problem that the oil exclusion instrument is damaged due to the erosion of oil liquid during the detection process.
[0028] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A liquid isolator comprising an isolation cavity shell A (1) and an isolation cavity shell B (2), the isolation cavity shell A (1) being threadedly fixed to the top of the isolation cavity shell B (2), a joint A (101) being provided at the top end of the isolation cavity shell A (1) and a joint B (202) being provided at the bottom end of the isolation cavity shell B (2), characterized in that, The isolation cavity shell A (1) and the isolation cavity shell B (2) are provided with an isolation membrane structure (5), the isolation membrane structure (5) comprises a compression ring seat (501), an elastic isolation membrane A (502) fixed to the inner wall of the compression ring seat (501), and an elastic isolation membrane B (504), the elastic isolation membrane A (502) and the elastic isolation membrane B (504) are filled with fluorescent substances (503), the isolation cavity shell A (1) is provided with an observation window A (3) on the surface, and the isolation cavity shell B (2) is provided with an observation window B (4) on the surface.
2. A liquid isolator according to claim 1, wherein, The elastic isolation membrane A (502) is located directly above the elastic isolation membrane B (504), the circumferential surfaces of the elastic isolation membrane A (502) and the elastic isolation membrane B (504) are in sealing connection with the compression ring seat (501), and the gap between the elastic isolation membrane A (502) and the elastic isolation membrane B (504) is 2 mm.
3. A liquid isolator according to claim 2, wherein, The elastic isolation membrane A (502) and the elastic isolation membrane B (504) are both oil-resistant rubber membranes.
4. A liquid isolator according to claim 1, wherein The fluorescent substances (503) comprise a transparent shell and fluorescent liquid filled in the transparent shell.
5. A liquid isolator according to claim 4, wherein, The compression ring seat (501) is fixedly provided with a net frame (505) at the bottom, and the aperture of the net frame (505) is 1 mm smaller than the diameter of the fluorescent substances (503).
6. A liquid isolator according to claim 1, wherein, The joint A (101) and the isolation cavity shell A (1) are provided with a manual stop valve (6) in series communication.