Low-concentration gas flow monitoring device
By designing a low-concentration gas flow monitoring device including a protective cover, a fixture and a rubber ring, the problem of loose connection parts during the installation of the device is solved, and higher stability and service life are achieved, and water vapor erosion is prevented.
Patent Information
- Application Number
- CN202421788322.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-26
AI Technical Summary
During the installation process, the existing low-concentration gas flow monitoring device is prone to loosening of the connection part due to gravity or vibration and external forces, which affects normal use.
A low-concentration gas flow monitoring device including a monitor body, a protective cover, a fixed frame, a mobile frame and a rubber ring is designed. The stability and protective performance of the device are enhanced by the cooperation of the threaded connection structure and the rubber ring.
By setting up a protective cover and a fixture to assist in supporting the monitor body, the gaps in the connection area are avoided, the stability and service life of the device are improved, and water vapor erosion is prevented through the rubber ring.
Smart Images
Figure CN222772952U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of monitoring instruments, and in particular relates to a low-concentration gas flow monitoring device. Background Art
[0002] Gas is formed by the decomposition of cellulose and organic matter by anaerobic bacteria in the early stage of ancient plants being accumulated into coal. In a high temperature and high pressure environment, while coal is being formed, gas continues to be generated due to physical and chemical reactions. Gas is a colorless and odorless gas, but sometimes you can smell an apple-like fragrance, which is due to the simultaneous outflow of aromatic hydrocarbon gases with the gas. When gas is transported in a pipeline, a flow monitoring device is needed to monitor the flow of the gas. A low-concentration gas flow monitoring device is installed on the gas pipeline and the gas flow and concentration are monitored through sensors, so that the alarm device can be used to give an alarm in time. However, the device also has the following defects: When the above-mentioned device is in use, when installing the low-concentration gas flow monitoring device on the gas pipeline, it is generally connected using the installation pipe provided by the device itself. After long-term connection, it is easy to cause the connection part to loosen due to gravity, vibration and external force, thereby affecting its normal use. Utility Model Content
[0003] The purpose of the utility model is to provide a low-concentration gas flow monitoring device, aiming to solve the problem in the prior art that when the above-mentioned equipment is used, when the low-concentration gas flow monitoring device is installed on the gas pipeline, it is generally connected by using the installation pipeline provided on the equipment itself. After being connected for a long time, it is easy to cause the connection part to loosen due to gravity or vibration and external force, thereby affecting its normal use.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-concentration gas flow monitoring device, comprising: a monitoring instrument body, the outer walls on both sides of the monitoring instrument body are snap-connected to limit blocks, the other side of the limit blocks are fixedly connected to the inner wall of the protective cover, one side of the rear end of the protective cover is snap-connected to a fixed frame, a connecting ear is provided between the two fixed frames, the side wall of the connecting ear is threadedly connected to a screw, the other side of the screw is slidably connected to a moving frame, the inner wall of the moving frame abuts against a cover plate, the other side of the cover plate abuts against the protective cover and the inner wall is provided with a rubber block snap-connected to a limit tube provided on the inner wall of the protective cover.
[0005] In order to adjust the position of the screw on the connecting ear and thus adjust the distance between the movable frame and the fixed frame, as a preferred low-concentration gas flow monitoring device of the utility model, the fixed frame, the connecting ear, the screw and the movable frame form a threaded connection structure, the rear end of the screw is a threaded structure whose shape and size are consistent with the thread groove on the side wall of the connecting ear, and the front end of the screw slides and abuts against the front side of the movable frame.
[0006] In order to utilize the limiting tube to fix the connection between the cover plate and the protective cover, as a preferred low-concentration gas flow monitoring device of the utility model, three rubber protrusions are provided on the side where the cover plate abuts the protective cover, and the shape and size of the blocks match the limiting tube.
[0007] In order to prevent water vapor from corroding the components of the monitor body by utilizing the cooperation of a drying plate and a rubber ring, as a preferred low-concentration gas flow monitoring device of the utility model, the inner wall of the protective cover is provided with two groups of mounting grooves, the side walls of the mounting grooves are engaged with the drying plate and the drying plate is abutted against the monitor body, a through groove is provided at the intersection of the protective cover and the mounting tube of the monitor body, the inner wall of the through groove is engaged with the rubber ring, and the inner wall of the rubber ring is sleeved on the mounting tube of the monitor body.
[0008] In order to utilize the mounting grooves to fix the position of the drying plate, as a preferred low-concentration gas flow monitoring device of the utility model, mounting pipes are respectively provided at the bottom and right side of the monitor body and the positions thereof are consistent with the two sets of mounting grooves provided on the protective cover.
[0009] In order to utilize the drying plate arranged at the intersection of the detector body and the protective cover to block and absorb the possible invading water vapor, as a preferred low-concentration gas flow monitoring device of the utility model, the side wall of the drying plate is provided with a limiting groove whose shape and size are consistent with the shape of the intersection of the monitor body.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] The position of the monitor body is supported by a fixed frame and a movable frame provided on the protective cover outside the monitor body, so as to avoid the situation that the connection part is stressed and a gap is formed when the gas pipeline is connected only by the monitor body and the installation pipeline;
[0012] The protective cover and cover plate arranged outside the monitor body and the rubber ring arranged on the through groove at the intersection of the drying plate and the monitor body inside it are used to prevent water vapor in the environment from corroding the components of the monitor body and thus affecting its service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;
[0016] Figure 3It is a schematic diagram of the cross-sectional structure of the utility model in a top view;
[0017] Figure 4 It is a schematic diagram of the enlarged cross-sectional structure of the limiting tube and the protective cover of the utility model;
[0018] Figure 5 For the utility model Figure 3 A schematic diagram of the enlarged structure of part A.
[0019] In the figure: 1. Monitor body; 2. Limit block; 3. Protective cover; 4. Fixed bracket; 5. Connecting ear; 6. Screw; 7. Moving bracket; 8. Cover plate; 9. Limit tube; 10. Mounting slot; 11. Drying plate; 12. Through slot; 13. Rubber ring. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figure 1-5 The utility model provides the following technical solutions: a low-concentration gas flow monitoring device, comprising: a monitor body 1. The model of the monitor body 1 in this design is: Nanjing North Road GJC4 (A). The monitor body 1 in this technical solution is respectively provided with mounting mechanisms at its bottom and one side. The mechanism is a conventional technology in this field and has no relevance to the technical problem in this technical solution. Therefore, no further description is made in this technical solution. In specific use, the mounting mechanism provided on the monitor body 1 is used to connect the sensor and the gas pipeline respectively, so as to monitor the concentration and flow in the gas pipeline so as to timely issue an alarm through the alarm device installed on the monitor body 1.
[0022] The outer walls on both sides of the monitor body 1 are snap-fitted and connected to the limit blocks 2, and the other side of the limit blocks 2 is fixedly connected to the inner wall of the protective cover 3. One side of the rear end of the protective cover 3 is snap-fitted and connected to the fixed frame 4. A connecting ear 5 is provided between the two fixed frames 4. The side wall of the connecting ear 5 is threadedly connected to the screw 6, and the other side of the screw 6 is slidably connected to the moving frame 7. The inner wall of the moving frame 7 abuts against the cover plate 8, and the other side of the cover plate 8 abuts against the protective cover 3 and the inner wall is provided with a rubber block snap-fitted and connected to the limit tube 9 provided on the inner wall of the protective cover 3.
[0023] Preferably, the fixed frame 4 , the connecting ear 5 , the screw 6 and the movable frame 7 form a threaded connection structure, the rear end of the screw 6 is a threaded structure whose shape and size match the thread groove on the side wall of the connecting ear 5 , and the front end of the screw 6 slides against the front side of the movable frame 7 .
[0024] When in use, the screw 6 passes through the groove on the fixed ear on one side of the mobile frame 7 and is threadedly fixed on the connecting ear 5, and the screw 6 is used to adjust the distance between the fixed frame 4 and the mobile frame 7, so as to fix the positions of the protective cover 3 and the mobile frame 7.
[0025] Preferably, three rubber bumps are provided on the side where the cover plate 8 abuts against the protective cover 3 , and the shapes and sizes of the rubber bumps are consistent with those of the limiting tube 9 .
[0026] When in use, the rubber protrusion provided on one side of the cover plate 8 is engaged and fixed in the limiting tube 9 provided on the inner wall of the protective cover 3 , thereby fixing the connection between the protective cover 3 and the cover plate 8 .
[0027] Preferably: two groups of mounting grooves 10 are provided on the inner wall of the protective cover 3, the side walls of the mounting grooves 10 are engaged and connected to the drying plate 11 and the drying plate 11 abuts against the monitor body 1, a through groove 12 is provided at the intersection of the protective cover 3 and the mounting tube of the monitor body 1, the inner wall of the through groove 12 is engaged and connected to the rubber ring 13, and the inner wall of the rubber ring 13 is sleeved on the mounting tube of the monitor body 1.
[0028] During specific use, the drying plate 11 is engaged and fixed in the two groups of mounting grooves 10 provided in the protective cover 3 to absorb and block the water vapor that may appear in the protective cover 3, thereby preventing the water vapor from corroding the components on the monitor body 1 and affecting its service life.
[0029] Preferably, mounting pipes are respectively provided at the bottom and right side of the monitor body 1 and the positions of the two groups of mounting grooves 10 provided on the protective cover 3 are consistent with each other.
[0030] During specific use, the drying plate 11 is engaged and fixed in the two groups of mounting grooves 10 provided in the protective cover 3 to absorb and block the water vapor that may appear in the protective cover 3, thereby preventing the water vapor from corroding the components on the monitor body 1 and affecting its service life.
[0031] Preferably, the side wall of the drying plate 11 is provided with a limiting groove, the shape and size of which are consistent with the shape of the intersection of the monitoring instrument body 1.
[0032] During specific use, the drying plate 11 is snap-fitted and fixed on the mounting groove 10 to absorb the water vapor appearing at the intersection of the protective cover 3 and the monitor body 1. The limiting groove provided at the intersection of the drying plate 11 and the monitor body 1 facilitates the setting of the drying plate 11 at the bottom and side wall of the protective cover 3.
[0033] Working principle: When it is necessary to use the mounting tube provided on the monitor body 1 to connect the gas pipeline and the sensor to monitor the gas concentration and flow, firstly, the through grooves 12 provided at the bottom and one side of the protective cover 3 are used to make the mounting tube provided on the surface of the monitor body 1 extend out of the protective cover 3 to facilitate the connection of the gas pipeline and the sensor. The mounting tube provided on the surface of the monitor body 1 is sleeved in the rubber ring 13 to facilitate the filling of the gap between the monitor body 1 and the protective cover 3. After fixing the connection between the monitor body 1 and the gas pipeline and the sensor, the fixing frame 4 is engaged with the rear end of the protective cover 3, and then the mounting holes reserved on the upper and lower sides of the fixing frame 4 are used to fix its position, so as to assist in fixing the position of the monitor body 1, and then the drying plate 11 is engaged and fixed in the protective cover 3. Two groups of mounting grooves 10 are provided to absorb and block the water vapor that may appear in the protective cover 3, so as to prevent the water vapor from corroding the components on the monitor body 1 and affecting its service life. Then, the rubber protrusion provided on one side of the cover plate 8 is snap-fitted and fixed in the limiting tube 9 provided on the inner wall of the protective cover 3, so as to fix the connection between the protective cover 3 and the cover plate 8, so as to facilitate the protection of the monitor body 1. At the same time, a piece of visual glass is provided at the intersection of the cover plate 8 and the display screen of the monitor body 1, so as to facilitate the staff to read the test data of the monitor body 1. After the connection between the protective cover 3 and the cover plate 8 is fixed, the movable frame 7 is abutted against the cover plate 8 and the screw 6 is passed through the fixing ear of the side wall of the movable frame 7 and fixed to the connecting ear 5, so as to facilitate the use of the fixing frame 4 and the movable frame 7 to clamp and fix the protective cover 3 and the cover plate 8.
[0034] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A low-concentration gas flow monitoring device, comprising: The monitoring instrument body (1) is characterized in that: the outer walls of both sides of the monitoring instrument body (1) are snap-fitted with limit blocks (2), the other side of the limit blocks (2) is fixedly connected to the inner wall of the protective cover (3), one side of the rear end of the protective cover (3) is snap-fitted with a fixed frame (4), a connecting ear (5) is provided between the two fixed frames (4), the side wall of the connecting ear (5) is threadedly connected to a screw rod (6), the other side of the screw rod (6) is slidably connected to a moving frame (7), the inner wall of the moving frame (7) abuts against a cover plate (8), the other side of the cover plate (8) abuts against the protective cover (3) and the inner wall is provided with a rubber block snap-fitted with a limit tube (9) provided on the inner wall of the protective cover (3).
2. A low-concentration gas flow monitoring device according to claim 1, characterized in that: The fixed frame (4), the connecting ear (5), the screw rod (6) and the movable frame (7) form a threaded connection structure, the rear end of the screw rod (6) is a threaded structure whose shape and size match the thread groove on the side wall of the connecting ear (5), and the front end of the screw rod (6) slides against the front side of the movable frame (7).
3. A low-concentration gas flow monitoring device according to claim 1, characterized in that: The cover plate (8) is provided with three rubber protrusions on the side where they abut against the protective cover (3), the shape and size of which are consistent with the limiting tube (9).
4. A low-concentration gas flow monitoring device according to claim 1, characterized in that: The inner wall of the protective cover (3) is provided with two groups of mounting grooves (10), the side walls of the mounting grooves (10) are snap-fitted and connected to a drying plate (11), and the drying plate (11) abuts against the monitor body (1), a through groove (12) is provided at the intersection of the protective cover (3) and the mounting tube provided on the monitor body (1), the inner wall of the through groove (12) is engaged with a rubber ring (13), and the inner wall of the rubber ring (13) is sleeved on the mounting tube provided on the monitor body (1).
5. A low-concentration gas flow monitoring device according to claim 4, characterized in that: The bottom and right side of the monitor body (1) are respectively provided with mounting tubes, which are aligned with the positions of two groups of mounting grooves (10) provided on the protective cover (3).
6. A low-concentration gas flow monitoring device according to claim 4, characterized in that: The side wall of the drying plate (11) is provided with a limiting groove, the shape and size of which match the shape of the intersection of the monitoring instrument body (1).