Liquid level meter assembly purging connector and TANK tank liquid level control system

Abstract

The utility model provides a liquidometer assembly purging connector and a TANK tank liquid level control system. The liquidometer assembly purging connector comprises a connector body and a purging jacket. An assembly through hole is formed in the connector body, the blowing clamping sleeve is arranged outside the connector body in a sleeving mode, and a flow guide cavity is formed between the blowing clamping sleeve and the connector body. The side wall of the connector body is provided with a purging hole group and a shielding hole group, the purging hole group comprises a plurality of purging diversion holes, the shielding hole group is located above the purging hole group, and the shielding hole group comprises a plurality of shielding diversion holes. A purging connecting pipe communicated with the flow guide cavity is further arranged on the outer side wall of the purging jacket, and a pipe opening of the purging connecting pipe is located between the shielding hole set and the purging hole set. According to the liquidometer assembly purging connector and the TANK tank liquid level control system, the liquidometer can be purged and cleaned in the process of dismounting the liquidometer, and the labor amount and potential risks of workers are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of chemical equipment, especially relates to a liquid level meter assembly purging joint and TANK tank liquid level control system. BACKGROUND

[0002] TANK tank is also called tank container, and it is a commonly used material loading equipment, and is widely used in chemical industry because of its good safety, economy and environmental protection. In order to avoid material overflow of TANK tank in the process of loading material, the staff will install a liquid level meter on the TANK tank, so as to detect the liquid level height in the TANK tank by means of the liquid level meter, and facilitate flexible control of the loading process of material. When the material loading is completed, the staff will remove the liquid level meter, so as to avoid the influence of the liquid level meter and the related circuit on the transfer and transportation of the TANK tank.

[0003] However, the conventional assembly joint cannot effectively clean the liquid level meter in the process of disassembling the liquid level meter. When the material loaded in the TANK tank is easy to solidify or has certain viscosity, the material will adhere to the liquid level meter, so the staff needs to clean the liquid level meter manually in the disassembling process, which not only increases the labor intensity of the staff, but also causes the staff to directly contact with the material, thereby causing unnecessary safety hazards. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the utility model aims at providing a liquid level meter assembly purging joint and TANK tank liquid level control system to solve the above technical problems.

[0005] In order to achieve the above purpose, the technical scheme of the utility model is as follows:

[0006] On the one hand, the utility model embodiment provides a kind of liquid level meter assembly purging joint, including joint body and purging jacket;The joint body is equipped with assembly through-hole, the purging jacket is set in the outside of joint body, and the inner side wall of purging jacket and the outer side wall of joint body form flow guide cavity;Purging hole group and shielding hole group are equipped on the side wall of joint body, and assembly through-hole is communicated with flow guide cavity by purging hole group and shielding hole group, the purging hole group includes multiple purging flow guide holes, and multiple purging flow guide holes are annularly arranged on the circumferential side of assembly through-hole axis, the shielding hole group is located above purging hole group, and the shielding hole group includes multiple shielding flow guide holes, and multiple shielding flow guide holes are annularly arranged on the circumferential side of assembly through-hole axis;Purging connector pipe that is communicated with flow guide cavity is further equipped on the outer side wall of purging jacket, and the pipe opening of purging connector pipe is located between shielding hole group and purging hole group.

[0007] Further, the end of the purging flow guide hole close to the flow guide cavity is higher than the end close to the assembly through-hole.

[0008] Further, the shielding flow guide hole and the assembly through hole form a rotational flow angle.

[0009] Further, the number of the purge flow guide holes is greater than the number of the shielding flow guide holes, and the diameter of the shielding flow guide holes is smaller than the diameter of the purge flow guide holes.

[0010] Further, the flow guide cavity is internally provided with an annular baffle, the annular baffle is located between the shielding hole group and the pipe opening of the purge connector, the inner side wall of the annular baffle is connected with the outer side wall of the joint body, and the flow guide gap is formed between the outer side wall of the annular baffle and the inner side wall of the purge jacket.

[0011] Further, the annular baffle is a cone with an opening upward.

[0012] Further, the top end of the assembly through hole is provided with an assembly flange, and the bottom end of the assembly through hole is provided with a threaded interface.

[0013] Further, the purge connector is provided with a filter pressure reducer and a detachable flow limiting orifice plate, and the filter pressure reducer is located between the flow limiting orifice plate and the purge jacket.

[0014] In another aspect, the utility model further provides a TANK tank liquid level control system, the TANK tank liquid level control system includes the liquid level meter assembly purge connector provided by the above embodiment, still includes: wireless liquid level meter, and beat material pump and DCS;

[0015] Wireless liquid level meter and beat material pump are all connected with DCS communication, and the wireless liquid level meter is installed on the TANK tank through the liquid level meter assembly purge connector, the feed end of beat material pump is communicated with material pipeline, and the discharge end of beat material pump is communicated with the feed inlet of TANK tank through beat material pipe, and the control valve that is interlocked with wireless liquid level meter is further provided on beat material pipe, and the control valve is connected with DCS communication.

[0016] Compared with the prior art, the liquid level meter assembly purge connector and the TANK tank liquid level control system have the following advantages:

[0017] (1) The liquid level meter assembly blow-off joint disclosed by the utility model has shielding hole groups and blow-off hole groups on the joint body. During the disassembly process of the liquid level meter, the staff can make the blow-off gas enter the flow guide cavity through the blow-off pipe, and make the blow-off gas enter the assembly through hole inside through the shielding hole groups and the blow-off hole groups. The blow-off gas entering the assembly through hole through the blow-off hole groups can blow off and clean the liquid level meter, thereby reducing the material adhesion amount on the surface of the liquid level meter, the blow-off gas entering the assembly through hole through the shielding hole groups can blow off the liquid level meter again, improve the cleaning effect of the liquid level meter, and can form an air seal inside the assembly through hole, thereby preventing foreign matters from entering the TANK tank.

[0018] (2) The liquid level meter assembly blow-off joint disclosed by the utility model forms a rotational flow included angle between the axis of the shielding flow guide hole and the diameter line of the assembly through hole, so that the blow-off gas entering the assembly through hole through the shielding flow guide hole can form rotational flow, and the effect of the air seal is strengthened. Secondly, the end of the blow-off flow guide hole close to the flow guide cavity is higher than the end close to the assembly through hole in the device, so that the blow-off gas entering the assembly through hole through the blow-off flow guide hole will form an included angle with the liquid level meter, and the cleaning capacity of the blow-off gas is strengthened. In addition, the device is also provided with an annular flow baffle inside the flow guide cavity, and the flow baffle can ensure that the blow-off hole groups obtain stable air flow supply, and guarantee that the liquid level meter obtains good blow-off and cleaning effect.

[0019] (3) The TANK tank liquid level control system disclosed by the utility model can control the wireless liquid level meter, the material hitting pump and the control valve through DCS, thereby accurately controlling the liquid level height in the TANK tank, saving the labor cost and time cost, and reducing the risk of material leakage of the TANK tank. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which form a part of the present application, are used to provide further understanding of the present application, and the illustrative embodiments of the present application and their description serve the purpose of explaining the present application, and do not constitute an improper limitation to the present application. In the drawings:

[0021] Figure 1 The use state schematic view of the liquid level meter assembly blow-off joint of the utility model embodiment one;

[0022] Figure 2 The exploded view of the liquid level meter assembly blow-off joint of the utility model embodiment one;

[0023] Figure 3 The sectional view of the liquid level meter assembly blow-off joint of the utility model embodiment one (cut along the assembly through hole axis direction);

[0024] Figure 4 The cut sectional view of the liquid level meter assembly blow-off joint of the utility model embodiment one (cut along the shielding flow guide hole axis direction);

[0025] Figure 5 The schematic diagram of the TANK liquid level control system is shown in Embodiment Two of the present application.

[0026] Marked explanation:

[0027] 1-joint body; 11-assembly through hole; 12-assembly flange; 13-threaded interface; 2-purging jacket; 21-flow guiding cavity; 22-purging connecting pipe; 31-shielding flow guiding hole; 32-purging flow guiding hole; 4-annular flow baffle; 51-filtered pressure reducer; 52-flow limiting orifice plate; 61-wireless liquid level meter; 62-liquid level meter assembly purging connector; 63-punching pump; 64-control valve; 65-DCS; 66-TANK tank. DETAILED DESCRIPTION

[0028] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0029] In the description of the present application, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for description purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0030] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0032] Embodiment One

[0033] The embodiment provides a liquid level meter assembly purge joint. Figures 1-4 As shown in the figure, the liquid level meter assembly purge joint comprises a joint body 1 and a purge jacket 2. Figures 1-4 The joint body 1 is provided with an assembly through hole 11, and the purge jacket 2 is arranged outside the joint body 1, and a flow guide cavity 21 is formed between the inner side wall of the purge jacket 2 and the outer side wall of the joint body 1. In use, the joint body 1 is installed on the reserved interface of the TANK tank, so that the assembly through hole 11 is in communication with the TANK tank, and then the liquid level meter is inserted into the TANK tank along the assembly through hole 11, so that the liquid level in the TANK tank is detected by the liquid level meter.

[0034] As an optional embodiment of the embodiment, in order to reduce the assembly difficulty among the liquid level meter, the joint body 1 and the TANK tank, the top end of the assembly through hole 11 is provided with an assembly flange 12, and the bottom end of the assembly through hole 11 is provided with a threaded interface 13. In assembly, the liquid level meter and the joint body 1 are assembled by flange connection, and the joint body 1 is installed on the reserved interface of the TANK tank by threaded connection.

[0035] In order to facilitate cleaning of the materials attached to the surface of the liquid level meter during disassembly of the liquid level meter, the side wall of the joint body 1 is provided with a purge hole group and a shielding hole group, the shielding hole group is located above the purge hole group, the assembly through hole 11 is in communication with the flow guide cavity 21 through the purge hole group and the shielding hole group, the outer side wall of the purge jacket 2 is further provided with a purge pipe 22 in communication with the flow guide cavity 21, and the pipe opening of the purge pipe 22 is located between the shielding hole group and the purge hole group. Before the liquid level meter is removed, the purge pipe 22 is connected with the purge gas source, so that the purge gas generated by the purge gas source enters the flow guide cavity 21. When the liquid level meter is removed, the purge gas in the flow guide cavity 21 enters the assembly through hole 11 through the purge hole group and the shielding hole group, the purge gas entering the assembly through hole 11 through the purge hole group can purge and clean the liquid level meter, reduce the amount of material attached to the surface of the liquid level meter, and the purge gas entering the assembly through hole 11 through the shielding hole group can be used for secondary purging of the liquid level meter, thereby improving the cleaning effect of the liquid level meter. At the same time, since the shielding hole group is arranged above the purge hole group, the purge gas entering the assembly through hole 11 through the shielding hole group can also form an air seal in the area close to the top of the assembly through hole 1, thereby preventing foreign matters from entering the TANK tank.

[0036] Specifically, the purge hole group in the embodiment includes a plurality of purge flow guide holes 32, and the plurality of purge flow guide holes 32 are arranged in a ring shape on the circumferential side of the axis of the assembly through hole 11. The shielding hole group includes a plurality of shielding flow guide holes 31, and the plurality of shielding flow guide holes 31 are arranged in a ring shape on the circumferential side of the axis of the assembly through hole 11. When the purge gas enters the assembly through hole along the purge hole group and the shielding hole group, the plurality of purge flow guide holes 32 and the plurality of shielding flow guide holes 31 arranged in a ring shape can uniformly distribute the purge gas on the circumferential side of the liquid level meter, thereby avoiding the existence of a purge dead angle on the liquid level meter.

[0037] Optionally, in order to reasonably distribute the purge gas, the number of the purge flow guide holes 32 should be greater than the number of the shielding flow guide holes 31, and the diameter of the shielding flow guide holes 31 should be smaller than the diameter of the purge flow guide holes 32, so that most of the purge gas enters the interior of the assembly through hole along the purge flow guide holes 32, thereby facilitating the cleaning of the liquid level meter by the purge gas.

[0038] In addition, the interior of the flow guide cavity 21 can also be provided with a ring-shaped flow baffle 4. As shown in Figure 3 , the ring-shaped flow baffle 4 should be located between the shielding hole group and the pipe opening of the purge connector 22. The inner side wall of the ring-shaped flow baffle 4 is connected with the outer side wall of the joint body 1, and a flow guide gap is formed between the outer side wall of the ring-shaped flow baffle 4 and the inner side wall of the purge jacket 2. When the purge gas enters the interior of the flow guide cavity 21 along the purge connector 22, the ring-shaped flow baffle 4 can block the purge gas, so that the purge hole group obtains more stable air flow supply, and further guarantees that the liquid level meter obtains good purge cleaning effect.

[0039] As an example but not limited, the ring-shaped flow baffle 4 in the embodiment can be provided as a cone with an opening upward, so as to guide the purge gas to the interior of the purge hole group and the flow guide gap through the bottom tapered surface of the ring-shaped flow baffle 4.

[0040] In order to improve the purge cleaning effect of the purge hole group, in the embodiment, one end of the purge flow guide hole 32 close to the flow guide cavity 21 can be higher than the other end close to the assembly through hole 11. When the purge gas enters the assembly through hole 11 along the purge flow guide hole 32, the guidance of the purge flow guide hole 32 can form an included angle between the purge gas and the liquid level meter, thereby improving the ability of the purge gas to strip the attached materials, and further strengthening the cleaning ability of the purge gas.

[0041] Correspondingly, in order to improve the blocking of foreign matters by the shielding hole group, as shown in Figure 4 , an included angle of rotational flow should be formed between the axis of the shielding flow guide hole 31 and the radial line of the assembly through hole 11. When the purge gas enters the assembly through hole 11 along the shielding flow guide hole 31, the existence of the included angle of rotational flow can make the purge gas form a rotational flow in the assembly through hole 11, thereby strengthening the foreign matter blocking ability of the air seal.

[0042] As another optional implementation of the embodiment, to avoid impurities in the purge gas entering the TANK tank and reasonably control the pressure of the purge gas, a filter pressure reducer 51 and a detachable flow limiting orifice plate 52 can be further arranged on the purge connecting pipe 22, and the filter pressure reducer 51 should be located between the flow limiting orifice plate 52 and the purge jacket 2. In use, the filter pressure reducer 51 can be adjusted according to actual needs, so as to realize the purpose of stabilizing the pressure and filtering the gas. At the same time, the appropriate flow limiting orifice plate 52 can be selected according to the pressure limit of the TANK tank, so as to avoid overpressure of the TANK tank.

[0043] It should be noted that when assembling the filter pressure reducer 51 and the flow limiting orifice plate 52, the staff can use the flange connection method to install the above components on the purge connecting pipe 22. Correspondingly, necessary sealing structures should be arranged at the assembly connection position of the above components and the purge connecting pipe 22, so as to avoid the escape of the purge gas along the joint gap.

[0044] The effects of the above scheme are described as follows:

[0045] The embodiment provides a liquid level meter assembly purge connector, which can guide the purge gas into the assembly through hole through the shielding hole group and the purge hole group. The gas entering the assembly through hole along the purge hole group can clean the liquid level meter, and the gas entering the assembly through hole along the shielding control can clean the liquid level meter again, and can form a gas seal in the assembly through hole, so as to strengthen the cleaning effect and prevent foreign matters from entering the TANK tank.

[0046] Embodiment two

[0047] On the basis of the above embodiment, the embodiment provides a TANK tank liquid level control system. As shown in Figure 5 In the embodiment, the TANK tank liquid level control system comprises the liquid level meter assembly purge connector 62 provided in the above embodiment, and further comprises a wireless liquid level meter 61, a material punching pump 63 and a DCS 65.

[0048] Specifically, the wireless liquid level meter 61 is installed on the TANK tank 66 through the liquid level meter assembly purge connector 62, the material punching pump 63 is connected with the material pipeline at the inlet end, and the outlet end of the material punching pump 63 is connected with the inlet of the TANK tank 66 through a material punching pipe. A control valve 64 interlocked with the wireless liquid level meter 61 is further arranged on the material punching pipe, and the wireless liquid level meter 61, the material punching pump 63 and the control valve 64 are in communication connection with the DCS 65.

[0049] When the material is loaded into the TANK tank 66, the material in the material pipeline can be delivered into the TANK tank 66 by the material pump 63, and the wireless liquid level meter 61 can detect the liquid level in the TANK tank 66 in real time. When the liquid level in the TANK tank 66 rises to a preset high liquid level alarm value, the control valve 64 interlocked with the wireless liquid level meter 61 will be closed, so as to avoid the material overflow in the TANK tank 66. At the same time, since the wireless liquid level meter 61, the material pump 63 and the control valve 64 are all in communication connection with the DCS 65, the staff can also observe the liquid level change trend in the TANK tank 66 on the display interface of the DCS 65 in real time, and control the components in the TANK tank liquid level control system flexibly according to the actual needs.

[0050] It should be noted that the DCS in the embodiment is a common distributed control system in the chemical industry, and its specific structure and working principle are well known to those skilled in the art. The communication connection between the wireless liquid level meter, the material pump and the control valve and the DCS can be realized by common wireless communication technology, and the interlocking control between the wireless liquid level meter and the control valve is also the prior art known to those skilled in the art. Therefore, the above content will not be described in detail in the present application.

[0051] The effects of the above scheme will be described below.

[0052] The embodiment provides a TANK tank liquid level control system, which can control the wireless liquid level meter, the material pump and the control valve through the DCS, so as to accurately control the liquid level height in the TANK tank, save the labor cost and time cost, and reduce the risk of material leakage in the TANK tank.

[0053] The above only describes the preferred embodiment of the present application, and does not limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A liquid level gauge assembly purge union, characterized by: The joint body is provided with an assembly through hole, and the purging jacket is sleeved outside the joint body to form a flow guide cavity between the inner side wall of the purging jacket and the outer side wall of the joint body; a purging hole group and a shielding hole group are arranged on the side wall of the joint body, and the assembly through hole is communicated with the flow guide cavity through the purging hole group and the shielding hole group; the purging hole group comprises a plurality of purging flow guide holes arranged in a ring shape on the circumferential side of the assembly through hole axis, and the shielding hole group is located above the purging hole group and comprises a plurality of shielding flow guide holes arranged in a ring shape on the circumferential side of the assembly through hole axis; a purging connecting pipe is further arranged on the outer side wall of the purging jacket and communicated with the flow guide cavity, and the pipe opening of the purging connecting pipe is located between the shielding hole group and the purging hole group.

2. A liquid level gauge assembly purge union according to claim 1, characterised in that: The end of the purging flow guide hole close to the flow guide cavity is higher than the end close to the assembly through hole.

3. A liquid level gauge assembly purge union according to claim 1, characterised in that: The shielding flow guide hole forms a rotational flow included angle between the axis and the radial line of the assembly through hole.

4. A liquid level gauge assembly purge union according to claim 1, characterised in that: The number of the purging flow guide holes is greater than that of the shielding flow guide holes, and the hole diameter of the shielding flow guide holes is smaller than that of the purging flow guide holes.

5. A liquid level gauge assembly purge union according to claim 1, wherein: An annular baffle is arranged inside the flow guide cavity, the annular baffle is located between the shielding hole group and the pipe opening of the purging connecting pipe, the inner side wall of the annular baffle is connected with the outer side wall of the joint body, and a flow guide gap is formed between the outer side wall of the annular baffle and the inner side wall of the purging jacket.

6. A liquid level gauge assembly purge union according to claim 5, characterised in that: The annular baffle is a conical shape with an opening upward.

7. A liquid level gauge assembly purge union according to claim 1, wherein: A flange is arranged at the top end of the assembly through hole, and a threaded interface is arranged at the bottom end of the assembly through hole.

8. A liquid level gauge assembly purge union according to claim 1, wherein: A filter pressure reducer and a detachable flow limiting orifice plate are arranged on the purging connecting pipe, and the filter pressure reducer is located between the flow limiting orifice plate and the purging jacket.

9. A TANK tank level control system characterized by, The liquid level meter assembly purging joint comprises a wireless liquid level meter, a material stirring pump and a DCS. The wireless liquid level meter and the material stirring pump are in communication connection with the DCS, the wireless liquid level meter is installed on the TANK tank through the liquid level meter assembly purging joint, the inlet end of the material stirring pump is communicated with the material pipeline, the outlet end of the material stirring pump is communicated with the inlet of the TANK tank through a material stirring pipe; a control valve interlocked with the wireless liquid level meter is further arranged on the material stirring pipe, and the control valve is in communication connection with the DCS.

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