Buoy type liquid level measuring instrument calibration device

Abstract

The utility model relates to the field of automation instruments, and discloses a float-type liquid level measuring instrument calibration device which comprises a tap, one end of the tap is connected and communicated with a control valve, one end, far away from the tap, of the control valve is connected and communicated with a liquid level cylinder, and the other end of the tap is connected and communicated with a communicating pipe. The end, away from the tap, of the communicating pipe is connected with and penetrates through a sealing plug, a connecting opening is formed in the bottom end of the tap, and the bottom end of the connecting opening is connected with a piston sleeve. According to the float-type liquid level measuring instrument calibration device, the working state is switched by arranging the control valve, and the float in the float-type liquid level measuring instrument calibration device can periodically move by injecting water and extracting air outwards through the piston sleeve, so that crystals can fall off through movement; and preliminary maintenance can be carried out on the calibration device for the float-type liquid level measuring instrument.

Description

Technical Field

[0001] The utility model relates to the field of automation instruments, in particular to a float type liquid level measuring instrument calibration device. Background Art

[0002] The float level gauge is a liquid level measuring instrument designed based on Archimedes' law and magnetic coupling principle. The instrument can be used to measure liquid level, boundary level and density, and is responsible for the output of upper and lower limit alarm signals. It is specially used to measure the liquid level in pressure vessels and consists of four basic parts: float, spring, magnetic steel chamber and indicator.

[0003] The existing calibration device can only detect whether the indication is accurate or not. The float-type liquid level measuring instrument may crystallize inside due to the use environment, causing the float to move unsmoothly, thus causing deviation in the indication. Therefore, a calibration device is needed that can perform maintenance at the same time when a problem with the indication is detected. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a float type liquid level measuring instrument calibration device, which has the advantage of cleaning crystals in the float liquid level gauge and solves the problem of inaccurate measurement of the float liquid level gauge due to crystals.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a float-type liquid level measuring instrument calibration device, including a tap, one end of the tap is connected to and penetrated by a control valve, the end of the control valve away from the tap is connected to and penetrated by a liquid level cylinder, the other end of the tap is connected to and penetrated by a connecting pipe, the end of the connecting pipe away from the tap is connected to and penetrated by a sealing plug, the bottom end of the tap is provided with a connecting port, and the bottom end of the connecting port is connected to a piston sleeve.

[0008] In some embodiments, a support sleeve is fixedly installed on the outer surface of the tap, a fixing ring is fixedly installed on the outer surface of the liquid level cylinder, the support sleeve and the fixing ring are fixedly connected by a connecting frame, and an elastic clamping ring is fixedly installed on the side of the connecting frame away from the fixing ring.

[0009] In some embodiments, the shape of the fixing ring is semi-circular, and the arc formed by the fixing ring is the major arc of the edge circle of the liquid level cylinder.

[0010] In some embodiments, the interior of the connecting port is provided with an internal thread, and the connecting end of the piston sleeve is provided with an external thread that matches the internal thread.

[0011] In some embodiments, a clamping block is fixedly mounted on the connecting end of the piston sleeve, a plug-in groove is provided at the bottom end of the connecting port, and an annular groove is provided on the inner top wall of the connecting port located in the plug-in groove.

[0012] In some embodiments, a sealing ring is disposed on the outer ring of the connecting end of the piston sleeve, and a protrusion for squeezing the sealing ring is disposed on the inner ring of the connecting port.

[0013] In some embodiments, the sealing plug is divided into a threaded portion and a boss portion, and the boss portion is located on a side of the threaded portion away from the connecting pipe.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the present invention provides a method having the following beneficial effects:

[0016] 1. The float-type liquid level measuring instrument calibration device can switch the working state by setting a control valve, and can use the piston sleeve to inject water and pump air outward to make the float in the float-type liquid level measuring instrument calibration device move periodically, so that crystals can be shed through movement, and the float-type liquid level measuring instrument calibration device can be initially inspected and repaired.

[0017] 2. The float type liquid level measuring instrument calibration device is provided with an internal thread through the connection port, and the connecting end of the piston sleeve is provided with an external thread adapted to the internal thread. Such a setting enables the piston sleeve and the connection port to be sealed and connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the tap connection of the utility model;

[0020] Figure 3 This is a schematic diagram of the external thread connection of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection of the card block of the utility model.

[0022] In the figure:

[0023] 1. Tap joint; 2. Control valve; 3. Liquid level cylinder; 4. Connecting pipe; 5. Sealing plug; 6. Connecting port; 7. Piston sleeve; 8. Support sleeve; 9. Fixing ring; 10. Connecting frame; 11. Elastic clamping ring; 12. Internal thread; 13. External thread; 14. Block; 15. Plug-in groove; 16. Ring groove; 17. Sealing ring; 18. Protrusion. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0025] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0026] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] Water is injected into the liquid level cylinder 3 and the float type liquid level measuring instrument through the piston sleeve 7, and the reading of the liquid level cylinder is compared with the actual reading of the float type liquid level measuring instrument. When the difference between the two is within the standard range, it is proved that the float type liquid level measuring instrument is in good condition. When the reading difference is greater than the standard range, the water is pumped back into the piston sleeve, and the control valve 2 is closed. Water is injected into the float type liquid level measuring instrument through the piston sleeve 7, and the float is moved to the highest position, and the water is pumped out. The piston sleeve 7 is connected to the connecting port 6 to pump air outwards so that it can move to the lowest point. The action is repeated. The reciprocating motion can cause the crystals to fall off, and the reading is tested again. If the standard float type liquid level measuring instrument is restored, it can be used normally. If it does not meet the standard mark, it should be replaced, thereby improving the efficiency of detection and replacement.

[0028] The calibration device in the prior art can only detect whether the indication is accurate or not, and does not process the float type liquid level measuring instrument.

[0029] In order to solve the problems in the related art to a certain extent, the embodiment of the present application provides a float type liquid level measuring instrument calibration device. When it is needed, the float only needs to be driven by the piston sleeve 7 to perform multiple reciprocating movements so that the auxiliary attached crystals can fall off and be discharged. The present application is described below with reference to the accompanying drawings and specific embodiments:

[0030] Combination Figure 1-Figure 4The embodiment of the present application provides a float-type liquid level measuring instrument calibration device, including a tap 1, one end of the tap 1 is connected to and penetrated by a control valve 2, the end of the control valve 2 away from the tap 1 is connected to and penetrated by a liquid level cylinder 3, the other end of the tap 1 is connected to and penetrated by a connecting pipe 4, the end of the connecting pipe 4 away from the tap 1 is connected to and penetrated by a sealing plug 5, the bottom end of the tap 1 is provided with a connecting port 6, and the bottom end of the connecting port 6 is connected to a piston sleeve 7.

[0031] In some embodiments, a support sleeve 8 is fixedly installed on the outer surface of the tap 1, a fixing ring 9 is fixedly sleeved on the outer surface of the liquid level cylinder 3, the support sleeve 8 and the fixing ring 9 are fixedly connected by a connecting frame 10, and an elastic clamping ring 11 is fixedly installed on the side of the connecting frame 10 away from the fixing ring 9. Through such an arrangement, the device can be clamped on the outside of the float-type liquid level measuring instrument to prevent the device from shaking.

[0032] Specifically, the shape of the fixing ring 9 is semi-ring-shaped, and the circular arc formed by the fixing ring 9 is the major arc of the circular edge of the liquid level cylinder 3 . Through such an arrangement, a partial gap can be provided for observing the indication of the liquid level cylinder 3 .

[0033] In some embodiments, the interior of the connecting port 6 is provided with an internal thread 12, and the connecting end of the piston sleeve 7 is provided with an external thread 13 adapted to the internal thread. Such a configuration enables the piston sleeve 7 and the connecting port 6 to be sealed and connected.

[0034] In some embodiments, a clamping block 14 is fixedly installed at the connecting end of the piston sleeve 7, a plug-in groove 15 is provided at the bottom end of the connecting port 6, and an annular groove 16 is provided on the inner top wall of the connecting port 6 located at the plug-in groove 15. Such an arrangement enables the piston sleeve 7 and the connecting port 6 to be quickly connected.

[0035] Specifically, the outer ring of the connecting end of the piston sleeve 7 is provided with a sealing ring 17, and the inner ring of the connecting port 6 is provided with a protrusion 18 for squeezing the sealing ring 17, so that a sealing effect can be achieved.

[0036] Specifically, the sealing plug 5 is divided into a threaded portion and a boss portion, and the boss portion is located on the side of the threaded portion away from the connecting pipe 4. This arrangement allows the sealing plug 5 to be inserted into the drain port, thereby preventing crystals from being discharged from the sealing plug 5.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0038] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A float type liquid level measuring instrument calibration device, comprising a tap (1), characterized in that: One end of the tap (1) is connected to and penetrates a control valve (2); the end of the control valve (2) away from the tap (1) is connected to and penetrates a liquid level cylinder (3); the other end of the tap (1) is connected to and penetrates a connecting pipe (4); the end of the connecting pipe (4) away from the tap (1) is connected to and penetrates a sealing plug (5); a connecting port (6) is provided at the bottom end of the tap (1); and a piston sleeve (7) is connected to the bottom end of the connecting port (6).

2. A float type liquid level measuring instrument calibration device according to claim 1, characterized in that: A support sleeve (8) is fixedly mounted on the outer surface of the tap (1), a fixing ring (9) is fixedly mounted on the outer surface of the liquid level cylinder (3), the support sleeve (8) and the fixing ring (9) are fixedly connected via a connecting frame (10), and an elastic clamping ring (11) is fixedly mounted on a side of the connecting frame (10) away from the fixing ring (9).

3. A float type liquid level measuring instrument calibration device according to claim 2, characterized in that: The shape of the fixing ring (9) is semi-ring-shaped, and the circular arc formed by the fixing ring (9) is the major arc of the circular edge of the liquid level cylinder (3).

4. A float type liquid level measuring instrument calibration device according to claim 3, characterized in that: The interior of the connecting port (6) is provided with an internal thread (12), and the connecting end of the piston sleeve (7) is provided with an external thread (13) adapted to the internal thread.

5. A float type liquid level measuring instrument calibration device according to claim 4, characterized in that: A clamping block (14) is fixedly mounted on the connecting end of the piston sleeve (7), a plug-in groove (15) is provided at the bottom end of the connecting port (6), and an annular groove (16) is provided on the inner top wall of the connecting port (6) located in the plug-in groove (15).

6. A float type liquid level measuring instrument calibration device according to claim 1, 4 or 5, characterized in that: The outer ring of the connecting end of the piston sleeve (7) is provided with a sealing ring (17), and the inner ring of the connecting port (6) is provided with a protrusion (18) for squeezing the sealing ring (17).

7. The float type liquid level measuring instrument calibration device according to claim 1 is characterized in that: The sealing plug (5) is divided into a threaded portion and a boss portion, and the boss portion is located on a side of the threaded portion away from the connecting pipe (4).

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