A fixing device for liquid ammonia spherical tank top pressure transmitter

Abstract

The utility model relates to the field of instrument and meter engineering discloses a kind of fixing device for liquid ammonia spherical tank top pressure transmitter, including sensing core, the sensing core rear side is provided with the plug-in mechanism for fixing transmitter, the plug-in mechanism includes fixed plate, the inside of left and right sides of the fixed plate is equipped with square groove, the outside of the fixed plate is equipped with two sliding slots, the square groove inner wall is slidably connected with the abutment plate, the abutment plate outside is fixedly connected with spanner, the abutment plate one side is fixedly connected with lock tongue, the abutment plate other side is fixedly connected with spring.In the utility model, by plug-in mechanism, it is realized to install fast, and operating spanner makes it slide along sliding slot, drives abutment plate to move in square groove, spring is compressed along, lock tongue is synchronously separated from the lock groove of fixed base, it can be quickly unlocked fixed plate and fixed base, and transmitter dismounting is completed.No need complex tool, maintenance process under cryogenic condition is greatly simplified, efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of instrumentation engineering, and in particular to a fixing device for a pressure transmitter on the top of a liquid ammonia spherical tank. Background Technology

[0002] It is mainly used for the stable installation and reliable fixation of pressure transmitters on the top of liquid ammonia spherical tanks. It is widely used in industries such as cryogenic chemical industry and industrial automation. Its core function is to ensure the installation stability and sealing reliability of the pressure transmitter when achieving accurate pressure detection under the special working conditions of cryogenic and high pressure of liquid ammonia.

[0003] Currently, the pressure transmitter fixing device on the top of liquid ammonia spherical tanks on the market is mainly composed of low-temperature compatible flange connection components, cold-shrink-resistant mechanical support structures and sealing enhancement components. By optimizing the material compatibility and structural compactness of each component, the device can achieve the effect of long-term stable fixing of the pressure transmitter in a cryogenic environment, preventing liquid ammonia leakage and ensuring accurate pressure transmission.

[0004] The installation process of existing pressure transmitters at the top of liquid ammonia tanks is complicated and affects work efficiency. Therefore, a fixing device for the pressure transmitters at the top of liquid ammonia tanks is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a fixing device for the pressure transmitter at the top of a liquid ammonia spherical tank, aiming to improve the problem of complicated installation process and reduced work efficiency of the pressure transmitter at the top of the liquid ammonia spherical tank.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a fixing device for a pressure transmitter at the top of a liquid ammonia spherical tank, comprising a sensing core, wherein a plug-in mechanism for fixing the transmitter is provided on the rear side of the sensing core.

[0007] The insertion mechanism includes a fixed plate, with square grooves on the left and right sides of the fixed plate and two sliding grooves on the outside of the fixed plate. A stop plate is slidably connected to the inner wall of the square groove, and a wrench is fixedly connected to the outside of the stop plate. A locking tongue is fixedly connected to one side of the stop plate, and a spring is fixedly connected to the other side of the stop plate. A fixed base is slidably connected to the outside of the fixed plate, and locking grooves are opened on the outer walls of both sides of the fixed base.

[0008] As a further description of the above technical solution:

[0009] An isolation diaphragm is fixedly connected to the outside of the sensing core, and a connecting flange is also fixedly connected to the outside of the sensing core.

[0010] As a further description of the above technical solution:

[0011] A pressure channel is fixedly connected to the top of the sensor core, and a transmitter meter head is fixedly connected to the end of the pressure channel away from the sensor core.

[0012] As a further description of the above technical solution:

[0013] The transmitter head has two communication ports fixedly connected to its exterior, and a display window is also fixedly connected to its exterior.

[0014] As a further description of the above technical solution:

[0015] The wrench is slidably connected to the inner wall of the groove.

[0016] As a further description of the above technical solution:

[0017] The end of the spring furthest from the abutment is fixedly connected to the inner wall of the square groove.

[0018] As a further description of the above technical solution:

[0019] The latch is inserted into the inner wall of the lock groove.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, quick installation is achieved through a plug-in mechanism. By operating a wrench to slide along the groove, the abutment plate moves within the square groove, compressing the spring and simultaneously disengaging the locking tongue from the locking groove of the fixed base. This quickly unlocks the fixed plate from the fixed base, completing the transmitter assembly and disassembly. No complex tools are required, significantly simplifying maintenance procedures under low-temperature conditions and improving efficiency. Simultaneously, it ensures reliable transmitter fixation before and after assembly and disassembly, without affecting pressure detection. Attached Figure Description

[0022] Figure 1 This is a perspective view of a fixing device for a pressure transmitter on the top of a liquid ammonia spherical tank, as proposed in this utility model.

[0023] Figure 2 This is a schematic diagram of the communication port of a fixing device for a pressure transmitter at the top of a liquid ammonia spherical tank, as proposed in this utility model.

[0024] Figure 3 This is a schematic diagram of the connecting flange of a fixing device for a pressure transmitter at the top of a liquid ammonia spherical tank, as proposed in this utility model.

[0025] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0026] Legend:

[0027] 1. Sensor core; 2. Plug-in mechanism; 3. Fixing plate; 4. Square groove; 5. Slide groove; 6. Support plate; 7. Locking tongue; 8. Wrench; 9. Spring; 10. Fixing base; 11. Locking groove; 12. Isolation diaphragm; 13. Connecting flange; 14. Pressure channel; 15. Transmitter head; 16. Display window; 17. Communication port. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figures 1-3 One embodiment of this utility model is a fixing device for a pressure transmitter at the top of a liquid ammonia spherical tank, which includes a sensing core 1 and a plug-in mechanism 2 for fixing the transmitter is provided on the rear side of the sensing core 1.

[0030] The sensor core 1 is the core component for pressure sensing in the entire fixed device. It can capture pressure changes inside the liquid ammonia spherical tank in real time, providing a basis for subsequent pressure signal processing. The plug-in mechanism 2 connects to the rear of the sensor core 1, which can stably mount the transmitter on the sensor core 1, ensuring that the transmitter will not be displaced under special working conditions at the top of the liquid ammonia spherical tank, and providing structural support for the stable operation of pressure monitoring.

[0031] Reference Figures 2-4 The insertion mechanism 2 includes a fixed plate 3. Square grooves 4 are provided inside the left and right sides of the fixed plate 3. Two sliding grooves 5 are provided on the outside of the fixed plate 3. A stop plate 6 is slidably connected to the inner wall of the square groove 4. A wrench 8 is fixedly connected to the outside of the stop plate 6. A locking tongue 7 is fixedly connected to one side of the stop plate 6. A spring 9 is fixedly connected to the other side of the stop plate 6. A fixed base 10 is slidably connected to the outside of the fixed plate 3. Locking grooves 11 are provided on the outer walls of both sides of the fixed base 10.

[0032] The fixed plate 3 serves as the basic supporting structure of the insertion mechanism 2. The square groove 4 provides sliding space for the abutment plate 6, while the sliding groove 5 limits the movement path of the wrench 8. When it is necessary to connect the fixed plate 3 to the fixed base 10, operating the wrench 8 can cause the abutment plate 6 to slide within the square groove 4. At this time, the spring 9 will deform due to the sliding of the abutment plate 6. While the abutment plate 6 slides, it will cause the locking tongue 7 to move synchronously. When the locking tongue 7 is aligned with the locking groove 11 on the fixed base 10, the spring 9 releases its elastic potential energy, pushing the abutment plate 6 to slide further, so that the locking tongue 7 is engaged in the locking groove 11, thereby locking the fixed plate 3 and the fixed base 10 and completing the fixing of the transmitter. If disassembly is required, the wrench 8 is operated in the opposite direction to drive the abutment plate 6 to compress the spring 9, causing the locking tongue 7 to disengage from the locking groove 11, thus releasing the lock between the fixed plate 3 and the fixed base 10.

[0033] Reference Figures 1-3 An isolation diaphragm 12 is fixedly connected to the outside of the sensing core 1, and a connecting flange 13 is fixedly connected to the outside of the sensing core 1.

[0034] The isolation diaphragm 12 is in direct contact with the liquid ammonia inside the liquid ammonia spherical tank, which can uniformly transmit the pressure of the liquid ammonia to the sensing core 1. At the same time, it can prevent the liquid ammonia from directly contacting the internal structure of the sensing core 1, thus preventing the sensing core 1 from being damaged due to the special properties of liquid ammonia. The connecting flange 13 is used to connect the sensing core 1 to the interface on the top of the liquid ammonia spherical tank, ensuring a stable connection between the sensing core 1 and the spherical tank, ensuring the sealing of the pressure transmission path, and preventing liquid ammonia leakage from affecting the pressure detection accuracy.

[0035] Reference Figures 1-3 A pressure channel 14 is fixedly connected to the top of the sensor core 1, and a transmitter meter head 15 is fixedly connected to the end of the pressure channel 14 away from the sensor core 1.

[0036] The pressure channel 14 is the key path for pressure signal transmission. The pressure signal captured by the sensing core 1 will be accurately transmitted to the transmitter head 15 through the pressure channel 14. After receiving the pressure signal, the transmitter head 15 will process and convert the signal, transforming the original pressure signal into a signal form that is easy to read or transmit remotely, thus providing conditions for subsequent monitoring and analysis of pressure data.

[0037] Reference Figures 1-3 The transmitter head 15 has two external fixed connections to communication ports 17 and a display window 16.

[0038] Communication port 17 enables signal interaction between transmitter head 15 and external devices. On the one hand, it can transmit the pressure signal processed by the meter head to the external control system or data acquisition equipment for convenient remote monitoring and control. On the other hand, it can receive instructions sent by external devices to adjust the working parameters of the meter head. Display window 16 is used to display the pressure value processed by transmitter head 15 in real time. Operators can intuitively obtain the pressure status inside the liquid ammonia tank through display window 16, which facilitates timely monitoring of pressure dynamics on site.

[0039] Reference Figures 2-4 The wrench 8 is slidably connected to the inner wall of the groove 5.

[0040] The slide groove 5 limits the sliding trajectory of the wrench 8. When the operator pushes or pulls the wrench 8, the wrench 8 can only move along the inner wall of the slide groove 5, which prevents the wrench 8 from deviating or misaligning during operation. This ensures that the wrench 8 can accurately drive the abutment 6 to slide in the square groove 4, thereby ensuring that the locking tongue 7 and the locking groove 11 cooperate accurately and improve the reliability of locking or unlocking of the plug-in mechanism 2.

[0041] Reference Figures 2-4 The end of the spring 9 away from the abutment 6 is fixedly connected to the inner wall of the square groove 4.

[0042] The inner wall of the square groove 4 provides a stable fixed base for the spring 9. When the abutment 6 slides in the square groove 4, the spring 9 will be compressed or stretched as the abutment 6 moves, thereby storing elastic potential energy. When the operator stops applying force to the wrench 8, the spring 9 will release the stored elastic potential energy, push the abutment 6 to automatically reset, and then drive the locking tongue 7 to reset, so that the locking tongue 7 can stably be inserted into the locking groove 11 or disengaged from the locking groove 11, ensuring the smooth completion of the locking and unlocking actions of the insertion mechanism 2.

[0043] Reference Figures 2-4 The locking tongue 7 is inserted into the inner wall of the locking groove 11.

[0044] When the locking tongue 7 is inserted into the inner wall of the locking groove 11, a mechanical limit is formed between the locking tongue 7 and the locking groove 11, which can restrict the relative sliding between the fixing plate 3 and the fixing base 10, thereby stably fixing the fixing plate 3 on the fixing base 10, and thus achieving reliable fixing of the transmitter. When it is necessary to adjust or disassemble the transmitter, the locking tongue 7 is disengaged from the inner wall of the locking groove 11, which can release the limit between the fixing plate 3 and the fixing base 10. At this time, the fixing plate 3 can slide outside the fixing base 10, which makes it convenient for operators to adjust the position of the transmitter or disassemble it for maintenance.

[0045] Working principle: First, the sensor core 1 is connected to the top interface of the liquid ammonia spherical tank via the connecting flange 13, so that the isolation diaphragm 12 directly contacts the liquid ammonia and evenly transmits the liquid ammonia pressure to the sensor core 1. After the sensor core 1 detects the pressure change, it accurately transmits the pressure signal to the transmitter head 15 at the other end of the pressure tapping channel 14 fixed at the top. The transmitter head 15 processes and converts the pressure signal, and on the one hand, displays the pressure value in real time through the external fixed display window 16 for on-site viewing. On the other hand, it realizes signal interaction with external devices through two external fixed communication ports 17. It can transmit the processed pressure signal to the external control system or data acquisition equipment for remote monitoring and control, and can also receive external commands to adjust the working parameters. At the same time, in order to achieve stable fixation of the transmitter, the insertion mechanism 2 on the rear side of the sensor core 1 is required. The external fixing plate 3 in the insertion mechanism 2 is operated. The wrench 8 is moved along the inner wall of the two grooves 5 on the outside of the fixed plate 3, which in turn causes the abutment 6, which is fixedly connected to the wrench 8, to slide along the inner wall of the square grooves 4 on the left and right sides of the fixed plate 3. At this time, the spring 9 fixedly connected to the other side of the abutment 6 deforms as the abutment 6 slides, and the locking tongue 7 fixedly connected to one side of the abutment 6 moves synchronously. When the locking tongue 7 is aligned with the locking grooves 11 on the outer walls of the fixed base 10 on both sides of the fixed plate 3, the spring 9 releases its elastic potential energy to push the abutment 6 to slide further, so that the locking tongue 7 is inserted into the inner wall of the locking groove 11, forming a mechanical limit to restrict the relative sliding between the fixed plate 3 and the fixed base 10, thereby stably fixing the fixed plate 3 on the fixed base 10 and completing the fixing of the transmitter. If disassembly or adjustment is required, the wrench 8 is operated in the opposite direction to drive the abutment 6 to compress the spring 9, so that the locking tongue 7 is disengaged from the locking groove 11, and the locking between the fixed plate 3 and the fixed base 10 is released.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mounting device for a pressure transmitter at the top of a liquid ammonia spherical tank, comprising a sensing core (1), characterized in that: The sensor core (1) is provided with a plug-in mechanism (2) for fixing the transmitter on the rear side. The insertion mechanism (2) includes a fixed plate (3), with square grooves (4) inside the left and right sides of the fixed plate (3), and two sliding grooves (5) on the outside of the fixed plate (3). A stop plate (6) is slidably connected to the inner wall of the square groove (4), and a wrench (8) is fixedly connected to the outside of the stop plate (6). A locking tongue (7) is fixedly connected to one side of the stop plate (6), and a spring (9) is fixedly connected to the other side of the stop plate (6). A fixed base (10) is slidably connected to the outside of the fixed plate (3), and locking grooves (11) are opened on the outer walls of both sides of the fixed base (10).

2. The fixing device for a pressure transmitter at the top of a liquid ammonia spherical tank according to claim 1, characterized in that: An isolation diaphragm (12) is fixedly connected to the outside of the sensing core (1), and a connecting flange (13) is fixedly connected to the outside of the sensing core (1).

3. The fixing device for a pressure transmitter at the top of a liquid ammonia spherical tank according to claim 1, characterized in that: The top of the sensing core (1) is fixedly connected to a pressure channel (14), and the end of the pressure channel (14) away from the sensing core (1) is fixedly connected to a transmitter meter head (15).

4. The fixing device for a pressure transmitter at the top of a liquid ammonia spherical tank according to claim 3, characterized in that: The transmitter head (15) has two communication ports (17) fixedly connected to the outside, and a display window (16) is fixedly connected to the outside of the transmitter head (15).

5. A fixing device for a pressure transmitter at the top of a liquid ammonia spherical tank according to claim 1, characterized in that: The wrench (8) is slidably connected to the inner wall of the groove (5).

6. A fixing device for a pressure transmitter at the top of a liquid ammonia spherical tank according to claim 1, characterized in that: The end of the spring (9) away from the abutment (6) is fixedly connected to the inner wall of the square groove (4).

7. A fixing device for a pressure transmitter at the top of a liquid ammonia spherical tank according to claim 1, characterized in that: The latch (7) is inserted into the inner wall of the lock groove (11).

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