Flange liquid level meter testing device

Abstract

The utility model discloses a flange liquid level meter testing device which comprises a bearing table, a hand-operated oil pump, a three-way installation base, an oil cup and a pressure gauge installation base are installed on the bearing table, the hand-operated oil pump, the three-way installation base, the oil cup and the pressure gauge installation base are connected in series through pipelines, and a flange connector communicated with the three-way installation base is installed at the upper end of the three-way installation base. A pressure gauge is mounted on the pressure gauge mounting seat; the flange connector comprises a flange part and a connecting pipe part, one end of the connecting pipe part is fixed to the lower surface of the flange part, the other end of the connecting pipe part is connected to the upper end of the three-way installation base, and an annular groove is formed outside an inner cavity of the flange part. According to the utility model, the whole pipeline is pressurized and decompressed through the hand-operated oil pump, and the pressed pressure value of the flange liquid level meter can be known according to the pressure reading of the pressure meter, so that the requirement of a factory on the performance detection of the flange liquid level meter is met; meanwhile, by arranging the flange joint, the quick connection with a flange plate of the flange liquid level meter can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical fiber production equipment, and more specifically, to a flange liquid level meter testing device. Background Art

[0002] The flange level gauge is an extension and development of the pressure transmitter technology. Based on the principle that the pressure generated by liquids with different specific gravities at different heights is in a linear relationship, it can accurately measure and transmit the volume, liquid height, and weight of water, oil, and paste. As a detection device, the flange level gauge is widely used in chemical fiber production. Since the flange diaphragm of the flange level gauge is in frequent contact with the melt for a long time, it is easily damaged by high temperature, which will cause inaccurate pressure measurement, high or low pressure, and irregular pressure fluctuations. After maintenance, the flange level gauge needs to be tested for performance to determine whether the flange level gauge meets the use requirements, and the newly purchased flange level gauge also needs to be tested before use.

[0003] Therefore, it is necessary to propose a new solution to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and to provide a flange level gauge testing device, which pressurizes and depressurizes the entire pipeline through a hand-cranked oil pump. The pressure value of the flange level gauge can be known based on the pressure reading of the pressure gauge, thereby meeting the factory's demand for flange level gauge performance testing; at the same time, by providing a flange joint, a quick connection with the flange plate of the flange level gauge can be achieved.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A flange level gauge testing device comprises a bearing platform, on which a hand-cranked oil pump, a three-way mounting seat, an oil cup and a pressure gauge mounting seat are mounted, the hand-cranked oil pump, the three-way mounting seat, the oil cup and the pressure gauge mounting seat are connected in series via pipelines, a flange joint connected thereto is mounted at the upper end of the three-way mounting seat, and a pressure gauge is mounted on the pressure gauge mounting seat; the flange joint comprises a flange portion and a connecting pipe portion, one end of the connecting pipe portion is fixed to the lower surface of the flange portion, and the other end of the connecting pipe portion is connected to the upper end of the three-way mounting seat, an annular groove is provided outside the inner cavity of the flange portion, the groove is coaxially arranged with the inner cavity of the flange portion, a sealing ring is installed in the groove, and a plurality of through holes are circumferentially provided at the edge of the flange portion.

[0007] Furthermore, the other end of the connecting pipe portion is threadedly connected to the upper end of the three-way mounting seat.

[0008] Furthermore, the other end of the connecting pipe portion is connected to the upper end of the three-way mounting seat through a connecting assembly, and the connecting assembly includes a rubber sleeve, one end of the rubber sleeve is sleeved on the other end of the connecting pipe portion, one end of the rubber sleeve is sleeved with a first clamp, and the rubber sleeve and the other end of the connecting pipe portion are fixedly sealed and connected by the first clamp, the other end of the rubber sleeve is sleeved on the upper end of the three-way mounting seat, the other end of the rubber sleeve is sleeved with a second clamp, and the rubber sleeve and the upper end of the three-way mounting seat are fixedly sealed and connected by the second clamp.

[0009] Furthermore, a first mounting groove for mounting a first clamp is formed on an outer wall at one end of the rubber sleeve, and a second mounting groove for mounting a second clamp is formed on an outer wall at the other end of the rubber sleeve.

[0010] Furthermore, a rubber limiting ring is provided on the circumference of the inner wall in the middle of the rubber sleeve.

[0011] The beneficial effects of the utility model are:

[0012] 1. In the utility model, the whole pipeline is pressurized and depressurized by a hand-cranked oil pump. The pressure value of the flange level gauge can be known according to the pressure reading of the pressure gauge, which meets the factory's demand for performance testing of the flange level gauge; at the same time, by setting a flange joint, a quick connection with the flange plate of the flange level gauge can be achieved.

[0013] 2. In the present invention, the flange joint can be connected to the upper end of the tee mounting seat by threaded connection, and the fixed sealing connection between the other end of the connecting pipe and the upper end of the tee mounting seat can be quickly achieved through the threaded cooperation of the internal thread and the external thread, and the cost is low.

[0014] 3. In the utility model, the flange joint can be connected to the upper end of the tee mounting seat by using a connecting assembly, which can effectively avoid the situation where the thread wear causes poor sealing after the connecting pipe is disassembled and assembled many times, and the replacement cost of the rubber sleeve is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of the flange level gauge testing device in this embodiment;

[0016] Figure 2 This is a schematic diagram of the main structure of the flange level gauge testing device in this embodiment;

[0017] Figure 3 This is a schematic diagram of a connection structure in which a flange joint is connected to a tee mounting seat through a connection assembly in this embodiment;

[0018] Figure 4 A schematic diagram of the structure of the rubber sleeve in this embodiment;

[0019] Figure 5 is a structural schematic diagram of the first clamp in this embodiment;

[0020] Figure 6 Schematic diagram of a usage state of the flange liquid level gauge testing device in this embodiment.

[0021] Figure numerals: supporting platform 1, hand-cranked oil pump 2, three-way mounting seat 3, oil cup 4, pressure gauge mounting seat 5, pipeline 6, flange joint 7, flange part 701, connecting pipe part 702, groove 703, sealing ring 704, through hole 705, pressure gauge 8, connecting assembly 9, rubber sleeve 901, first clamp 902, second clamp 903, first mounting groove 904, second mounting groove 905, rubber limiting ring 906, clamp ring 907, first clamp ear 908, second clamp ear 909, first connecting hole 910, second connecting hole 911, oil inlet control valve 10, flange level gauge 11, flange plate 1101. DETAILED DESCRIPTION

[0022] 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.

[0023] Embodiment: A flange level gauge testing device is used to test the performance of a flange level gauge 11, such as Figure 1-Figure 6 As shown, it includes a bearing platform 1, on which a hand-operated oil pump 2, a three-way mounting seat 3, an oil cup 4 and a pressure gauge mounting seat 5 are installed. The hand-operated oil pump 2, the three-way mounting seat 3, the oil cup 4 and the pressure gauge mounting seat 5 are connected in series through a pipeline 6. The three-way mounting seat 3 is a mounting seat with three connecting ends, and the three connecting ends are connected. A flange joint 7 is installed on the upper end of the three-way mounting seat 3, and the flange joint 7 is connected to the upper end of the three-way mounting seat 3. The remaining two connecting ends of the three-way mounting seat 3 are used to connect to the pipeline 6, and a pressure gauge 8 is installed on the pressure gauge mounting seat 5.

[0024] The flange joint 7 includes a flange portion 701 and a connecting pipe portion 702. The connecting pipe portion 702 is a hollow tubular structure with open ends. One end of the connecting pipe portion 702 is fixed to the lower surface of the flange portion 701, and the inner cavity of the connecting pipe portion 702 is connected to the inner cavity of the flange portion 701. The other end of the connecting pipe portion 702 is connected to the upper end of the three-way mounting seat 3, and the inner cavity of the connecting pipe portion 702 is connected to the inner cavity of the three-way mounting seat 3. The flange portion 701 is compatible with the flange plate 1101 of the flange liquid level gauge 11. An annular groove 703 is provided outside the inner cavity of the flange portion 701. The groove 703 is coaxially arranged with the inner cavity of the flange portion 701. A sealing ring 704 is installed in the groove 703. A plurality of through holes 705 are circumferentially provided on the edge of the flange portion 701.

[0025] During the test, the flange 1101 of the flange level gauge 11 and the flange part 701 are fixedly connected by bolts passing through the mounting holes on the flange 1101 of the flange level gauge 11 and the through holes 705 of the flange part 701 and then screwing nuts. Then, the entire pipeline 6 is pressurized and depressurized by turning the hand wheel of the hand-cranked oil pump 2. Since the three-way mounting seat 3 and the pressure gauge mounting seat 5 are connected in series, the pipe diameter of the three-way mounting seat 3 and the pipe diameter of the pressure gauge mounting seat 5 are the same. The pressure value of the flange level gauge 11 can be known based on the pressure reading of the pressure gauge 8. Among them, the pressure gauge 8 is a conventional pressure gauge in the prior art; the oil inlet control valve 10 is installed on the oil cup 4. When refueling, the oil inlet control valve 10 is opened to inject oil, and when pressurizing and depressurizing operations are performed, the oil inlet control valve 10 is closed; the sealing ring 704 is used to seal the connection between the flange 1101 and the flange part 701.

[0026] Further, such as Figure 2 As shown, the other end of the connecting pipe portion 702 can be connected to the upper end of the tee mounting seat 3 by a threaded connection, that is, the outer wall of the other end of the connecting pipe portion 702 is provided with an external thread, and the inner wall of the upper end of the tee mounting seat 3 is provided with an internal thread, or the inner wall of the other end of the connecting pipe portion 702 is provided with an internal thread, and the outer wall of the upper end of the tee mounting seat 3 is provided with an external thread. Through the threaded cooperation of the internal thread and the external thread, the other end of the connecting pipe portion 702 and the upper end of the tee mounting seat 3 can be quickly fixed and sealed. The cost is low.

[0027] like Figure 3-Figure 5As shown, the other end of the connecting pipe portion 702 can also be connected to the upper end of the three-way mounting seat 3 through a connecting component 9. The connecting component 9 includes a rubber sleeve 901. The rubber sleeve 901 is made of rubber and is a hollow tubular structure with open ends. Its inner wall is a smooth surface. One end of the rubber sleeve 901 is sleeved on the other end of the connecting pipe portion 702 through an interference fit. One end of the rubber sleeve 901 is sleeved with a first clamp 902, and the rubber sleeve 901 and the other end of the connecting pipe portion 702 are fixedly sealed and connected by tightening the first clamp 902. The other end of the rubber sleeve 901 is sleeved on the upper end of the three-way mounting seat 3 through an interference fit. The other end of the rubber sleeve 901 is sleeved with a second clamp 903, and the rubber sleeve 901 and the upper end of the three-way mounting seat 3 are fixedly sealed and connected by tightening the second clamp 903. The other end of the connecting pipe 702 is connected to the upper end of the three-way mounting seat 3 through the connecting component 9. Compared with the other end of the connecting pipe 702 being directly threadedly connected to the upper end of the three-way mounting seat 3, it can effectively avoid the situation where the thread wear leads to poor sealing after the connecting pipe 702 is disassembled and assembled many times, and the replacement cost of the rubber sleeve 901 is relatively low.

[0028] Preferably, the outer wall of one end of the rubber sleeve 901 is provided with a first mounting groove 904 for mounting the first clamp 902, and the outer wall of the other end of the rubber sleeve 901 is provided with a second mounting groove 905 for mounting the second clamp 903. The first mounting groove 904 and the second mounting groove 905 are provided to position and install the first clamp 902 and the second clamp 903.

[0029] Preferably, a rubber limiting ring 906 is provided in the circumferential direction of the inner wall in the middle of the rubber sleeve 901. The rubber limiting ring 906 is made of rubber and is connected to the rubber sleeve 901 as a whole. By providing the rubber limiting ring 906, on the one hand, the stroke of the connecting pipe 702 and the upper end of the three-way mounting seat 3 inserted into the rubber sleeve 901 is limited, and on the other hand, the end of the connecting pipe 702 and the upper end of the three-way mounting seat 3 abut against the rubber limiting ring 906 to achieve a primary sealing effect, and the inner wall of the rubber sleeve 901 is tightly attached to the connecting pipe 702 and the upper end of the three-way mounting seat 3 to achieve a secondary sealing effect.

[0030] The first clamp 902 and the second clamp 903 have the same structure. Figure 5As shown, they all include a curved annular clamp ring 907, the two free ends of the clamp ring 907 are respectively connected to a first clamp ear 908 and a second clamp ear 909, the first clamp ear 908 is provided with a first connection hole 910, and the second clamp ear 909 is provided with a second connection hole 911. When in use, the clamp ring 907 is sleeved on the rubber sleeve 901, and the first clamp ear 908 and the second clamp ear 909 are fitted by bolts passing through the first connection hole 910 and the second connection hole 911 and then screwing nuts, and the fixed sealing connection between the rubber sleeve 901 and the connecting pipe part 702, and between the rubber sleeve 901 and the upper end of the three-way mounting seat 3 is achieved by reducing the aperture of the clamp ring 907.

[0031] The flange level gauge 11 can be a single flange level gauge or a double flange level gauge. When it is a single flange level gauge, its flange plate 1101 is installed on the flange portion 701 of the flange joint 7 by means of bolts and nuts. When it is a double flange level gauge, Figure 6 As shown, one of the flanges 1101 is installed on the flange portion 701 of the flange joint 7 by means of bolts and nuts, and the other flange 1101 is suspended in the air as a low-pressure side.

[0032] The flange joint 7 can be serialized, that is, it has multiple specifications to adapt to flanges 1101 of different sizes of the flange level gauge 11; at this time, the size of the flange portion 701 of the flange joint 7 is adapted to the flange 1101 of the flange level gauge 11, the other end of the connecting pipe portion 702 is used to connect to the upper end of the three-way mounting seat 3, and its pipe diameter is adapted to the pipe diameter of the upper end of the three-way mounting seat 3, and one end of the connecting pipe portion 702 is used to connect to the flange portion 701, and one end of the connecting pipe portion 702 is subjected to shrinking and expanding treatment to make its pipe diameter adapted to the inner cavity of the flange portion 701; due to the change in the pipe diameter of the connecting pipe portion 702, during testing, in addition to referring to the reading of the pressure gauge 8, a normal and corresponding flange level gauge 11 can also be selected as a reference.

[0033] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A flange level gauge testing device, comprising a bearing platform (1), characterized in that: The support platform (1) is provided with a hand-operated oil pump (2), a three-way mounting seat (3), an oil cup (4) and a pressure gauge mounting seat (5); the hand-operated oil pump (2), the three-way mounting seat (3), the oil cup (4) and the pressure gauge mounting seat (5) are connected in series via a pipeline (6); a flange joint (7) connected thereto is provided at the upper end of the three-way mounting seat (3); a pressure gauge (8) is provided on the pressure gauge mounting seat (5); the flange joint (7) comprises a flange portion (701) and a connecting pipe (6); The flange portion (701) has a connecting pipe portion (702), one end of which is fixed to the lower surface of the flange portion (701), and the other end of which is connected to the upper end of the three-way mounting seat (3). An annular groove (703) is provided outside the inner cavity of the flange portion (701), and the groove (703) is coaxially arranged with the inner cavity of the flange portion (701). A sealing ring (704) is installed in the groove (703), and a plurality of through holes (705) are provided in the circumferential direction of the edge of the flange portion (701).

2. A flange level gauge testing device according to claim 1, characterized in that: The other end of the connecting pipe portion (702) is threadedly connected to the upper end of the three-way mounting seat (3).

3. A flange level gauge testing device according to claim 1, characterized in that: The other end of the connecting pipe part (702) is connected to the upper end of the three-way mounting seat (3) through a connecting assembly (9); the connecting assembly (9) comprises a rubber sleeve (901); one end of the rubber sleeve (901) is sleeved on the other end of the connecting pipe part (702); one end of the rubber sleeve (901) is sleeved with a first clamp (902); the first clamp (902) is used to tightly clamp the rubber sleeve (901) and the other end of the connecting pipe part (702) to be fixedly sealed and connected; the other end of the rubber sleeve (901) is sleeved on the upper end of the three-way mounting seat (3); the other end of the rubber sleeve (901) is sleeved with a second clamp (903); the second clamp (903) is used to tightly clamp the rubber sleeve (901) and the upper end of the three-way mounting seat (3) to be fixedly sealed and connected.

4. A flange level gauge testing device according to claim 3, characterized in that: The outer wall of one end of the rubber sleeve (901) is provided with a first mounting groove (904) for mounting the first clamp (902), and the outer wall of the other end of the rubber sleeve (901) is provided with a second mounting groove (905) for mounting the second clamp (903).

5. A flange level gauge testing device according to claim 3, characterized in that: A rubber limiting ring (906) is circumferentially provided on the inner wall of the middle portion of the rubber sleeve (901).

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