Material transferring and material backflow device with anti-blocking detection function

Abstract

The utility model discloses a material transfer and material backflow device with an anti-blocking detection function in the technical field of liquid material storage, which comprises a storage tank, a heat tracing pipe, a gas phase loop and a nitrogen supply system, the gas phase loop is provided with a backflow pipe and an anti-blocking detection sensing structure, the storage tank is provided with a feeding pipe and a first material transfer pipe, and the first material transfer pipe is provided with a second material transfer pipe. According to the utility model, a material return pipeline is additionally arranged on a pipeline for transferring materials to a workshop, and an anti-blocking detection sensing structure is arranged on a gas phase loop, so that the gas phase loop is detected through the anti-blocking detection sensing structure; when blockage occurs, the anti-blockage detection sensing structure is used for controlling the corresponding valve to work in an interlocking manner, so that the transferred material can flow back, and the heat of the high-melting-point material in the storage tank is used for melting the pipe orifice which is crystallized and blocked at the top of the storage tank, thereby avoiding safety accidents caused by the fact that the material at the top of the storage tank is solidified and crystallized to block a gas phase loop and the like. And the intrinsic safety level of an enterprise is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid material storage, in particular to a material transfer and material reflux device with an anti-blocking detection function. Background Art

[0002] When storing liquid materials, high-melting-point liquid materials tend to become more viscous or even solidify in winter. Most companies use internal coils in the tank, use hot water or steam for heating, or make insulation structures in the tank body to prevent high-melting-point liquid materials from becoming sticky or solidifying. For example, a liquid storage tank device with patent application number CN201922092383.0 has a steam pipe on the outer wall of the tank body for heating by steam.

[0003] However, the above method will cause the vapor volatilized by the liquid material when heated to solidify when it encounters cold on the top of the fixed-roof tank, forming a layer of solidified material, which is difficult to avoid even if the tank top is insulated and locally heated.

[0004] In order to solve the above problems, some companies install abnormal pressure alarm devices on the top of the storage tank in order to warn of similar situations. However, the solidification of materials at the probe of the detection mechanism often causes the detection alarm to fail and cannot play the warning function.

[0005] Once the material on the top of the tank solidifies, it is very easy to cause blockage of the gas phase loop pipeline or the nitrogen-sealed tank balance pipeline. After being blocked, the tank becomes a closed container. When unloading raw materials into the tank, it will cause positive pressure in the tank, and the tank body will expand and deform; when transferring materials in the tank to the workshop or device, the tank will be pumped with negative pressure, causing the tank body to be deflated and deformed. In the long run, the tank will be repeatedly deformed, resulting in fatigue of the tank material, and the atmospheric pressure tank will rupture, thus causing a major safety accident.

[0006] Based on this, the utility model designs a material transfer and material reflux device with anti-blocking detection function to solve the above problems. Utility Model Content

[0007] The purpose of the utility model is to provide a material transfer and material return device with an anti-blocking detection function to solve the problems raised in the above background technology.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A material transfer and material reflux device with anti-blocking detection function, comprising a storage tank and a nitrogen supply system, wherein the nitrogen supply system is connected to the top of the storage tank through a gas phase loop;

[0010] The top of the storage tank is connected with a feed pipe, one end of the feed pipe away from the storage tank is connected with a discharge pump, the discharge pump is connected with a discharge pipe, and the feed pipe is provided with a discharge pump;

[0011] A heating pipe is provided at the bottom of the storage tank, both ends of which extend out of the storage tank and are connected to valves, and the portion of the heating pipe located in the inner cavity of the storage tank is configured as a coil;

[0012] The bottom of the storage tank is connected with a first material transfer pipe, one end of the first material transfer pipe away from the storage tank is connected with a material transfer pump, and the material transfer pump is connected with a second material transfer pipe, and the second material transfer pipe is provided with a discharge valve;

[0013] The second material transfer pipe is connected with a reflux pipe, and the connection is located between the discharge valve and the material transfer pump. The reflux pipe is provided with a reflux valve. One end of the reflux pipe away from the second material transfer pipe is inserted into the gas phase loop and extends downward, and the bottom end of the reflux pipe is close to the bottom of the inner cavity of the storage tank.

[0014] An anti-blocking detection sensor structure is provided on the gas phase loop, and the anti-blocking detection sensor structure, the feed valve, the discharge valve and the reflux valve are all connected to the controller, the controller is also connected to an audible and visual alarm, and the feed valve, the discharge valve and the reflux valve are all set as cut-off valves;

[0015] The return pipe, the first material transfer pipe and the second material transfer pipe are all provided with a heat tracing and heat preservation structure.

[0016] Preferably, the heating and insulation structure includes a plurality of evenly arranged thermal insulation tubes, the ends of two adjacent thermal insulation tubes are abutted, the pipeline is located at the center of the thermal insulation tube and passes through the two ends of the thermal insulation tube, the outer wall of the thermal insulation tube is vertically fixedly connected with a first connecting tube and a second connecting tube, and the first connecting tube and the second connecting tube are respectively close to the two ends of the thermal insulation tube, an insert pipe is vertically fixed on the first connecting tube, a cylindrical fixing net is provided on the pipe section of the insert pipe close to the outer end, a sleeve is vertically fixed on the second connecting tube, and the insert pipes at adjacent positions are inserted into the sleeve.

[0017] Preferably, a sealing plate is provided at the position corresponding to the sleeve in the second connecting tube, and the side of the sealing plate away from the sleeve is connected to the inner wall of the second connecting tube through a spring, and a guide shaft is fixed on this side, and the end of the guide shaft away from the sealing plate passes through the side wall of the second connecting tube and extends out.

[0018] Preferably, annular extension plates are fixed to the through holes at both ends of the thermal insulation cylinder, and the extension plates are in contact with the side walls of the pipeline.

[0019] Preferably, sealing gaskets are provided on the outer end of the sleeve, the side of the sealing plate close to the sleeve, the side of the extension plate close to the pipe, and the position where the guide shaft passes through the second connecting pipe.

[0020] Preferably, the nominal diameter of the gas phase loop is 50 mm, and the nominal diameter of the reflux pipe is 25 mm.

[0021] Preferably, the distance between the bottom end of the reflux pipe and the bottom of the inner cavity of the storage tank is 200 mm.

[0022] Preferably, the anti-blockage detection sensing structure is an airflow sensor.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] The utility model sets a material return pipeline on the pipeline for transferring materials to the workshop, and sets an anti-blocking detection sensor structure on the gas phase loop, which is interlocked with the feed valve, the discharge valve and the return valve to detect the gas phase return through the anti-blocking detection sensor structure;

[0025] The utility model can control the operation of the corresponding valve through the interlocking control of the anti-blocking detection sensor structure when blockage occurs, so that the transferred material can flow back, and the heat of the high-melting-point material itself in the storage tank is used to melt the pipe opening that has been blocked by crystallization on the top of the storage tank, thereby avoiding safety accidents caused by solidification and crystallization of the material on the top of the storage tank blocking the gas phase circuit, thereby improving the inherent safety level of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a schematic diagram of the structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the utility model at A;

[0029] Figure 3 This is a schematic diagram of the structure of the heat insulation cylinder of the utility model;

[0030] Figure 4 This is a schematic diagram of the structure of point B of the utility model.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 1-storage tank, 2-unloading pump, 3-feeding pipe, 4-unloading pipe, 5-feeding valve, 6-first transfer pipe, 7-transferring pump, 8-second transfer pipe, 9-reflux pipe, 10-discharge valve, 11-reflux valve, 12-gas phase loop, 13-nitrogen feeding system, 14-anti-blocking detection sensing structure, 15-heating pipe, 16-thermal insulation cylinder, 17-extension plate, 18-first connecting pipe, 19-insertion pipe, 20-fixed net, 21-second connecting pipe, 22-sleeve, 23-sealing plate, 24-guide shaft. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0034] Embodiment 1

[0035] Please refer to the attached drawings, the utility model provides a technical solution:

[0036] A material transfer and material return device with anti-blocking detection function, such as Figure 1 As shown, it includes a storage tank 1 and a nitrogen supply system 13, and the nitrogen supply system 13 is connected to the top of the storage tank 1 through a gas phase loop 12;

[0037] A feed pipe 3 is connected to the top of the storage tank 1, and an end of the feed pipe 3 away from the storage tank 1 is connected to a discharge pump 2, and a discharge pipe 4 is connected to the discharge pump 2, and the feed pipe 3 is provided with a discharge pump 2;

[0038] A heating pipe 15 is provided at the bottom of the storage tank 1. Both ends of the heating pipe 15 extend out of the storage tank 1 and are connected to valves. The portion of the heating pipe 15 located in the inner cavity of the storage tank 1 is configured as a coil.

[0039] The bottom of the storage tank 1 is connected with a first material transfer pipe 6, one end of the first material transfer pipe 6 away from the storage tank 1 is connected with a material transfer pump 7, and the material transfer pump 7 is connected with a second material transfer pipe 8, and the second material transfer pipe 8 is provided with a discharge valve 10;

[0040] The second transfer pipe 8 is connected to a reflux pipe 9, and the connection is located between the discharge valve 10 and the transfer pump 7. The reflux pipe 9 is provided with a reflux valve 11. Figure 2 As shown, one end of the reflux pipe 9 away from the second transfer pipe 8 is inserted into the gas phase loop 12 and extends downward, and the bottom end of the reflux pipe 9 is close to the bottom of the inner cavity of the storage tank 1;

[0041] An anti-blocking detection sensor structure 14 is provided on the gas phase loop 12, and the anti-blocking detection sensor structure 14, the feed valve 5, the discharge valve 10 and the reflux valve 11 are all connected to the controller, and the controller is also connected to an audible and visual alarm, and the feed valve 5, the discharge valve 10 and the reflux valve 11 are all set as cut-off valves;

[0042] The return pipe 9, the first material transfer pipe 6 and the second material transfer pipe 8 are all provided with a heat tracing and heat preservation structure.

[0043] The present application sets up another material reflux pipeline on the pipeline for transferring materials to the workshop, that is, sets a reflux pipe 9 on the second material transfer pipe 8, and the reflux pipe 9 passes through the storage tank 1 from the gas phase loop 12 and is directly inserted into the bottom of the storage tank 1, and an anti-blocking detection sensor structure 14 is set on the gas phase loop 12, and the anti-blocking detection sensor structure 14 is interlocked with the feed valve 5, the discharge valve 10 and the reflux valve 11 for control.

[0044] When transferring materials from the storage tank 1 to the workshop device, the transfer pump 7 is turned on, and the anti-blockage detection sensor structure 14 obtains the detection current of the start-up of the transfer pump 7, and then performs a detection operation. If it is detected that there is no airflow in the gas phase loop 12, that is, the pipeline is blocked, the central control room will sound an audible and visual alarm, interlock and close the discharge valve 10, and open the reflux valve 11 at the same time, so that the material enters the reflux pipe 9, passes through the gas phase loop 12 and then returns to the storage tank 1, and the high-temperature material is used to melt the solidified material blocking the gas phase loop 12; when there is airflow in the gas phase loop 12, it indicates that the gas phase loop 12 is unobstructed, the reflux valve 11 is interlocked and closed, the discharge valve 10 is opened, and the audible and visual alarm set in the central control room cancels the alarm.

[0045] When unloading into the storage tank 1, the unloading pump 2 is turned on, and the anti-blocking detection sensor structure 14 starts working after obtaining the detection current of the unloading pump 2 starting. It detects that there is no airflow in the gas phase loop 12, that is, the pipeline is blocked, and the central control room sound and light alarms, interlocks to close the unloading pump 2 and the feed valve 5, and starts the transfer pump 7 at the same time, closes the discharge valve 10 and opens the reflux valve 11, and uses the high-temperature material in the tank to melt the solidified material blocking the gas phase loop 12; when there is airflow in the gas phase loop 12, that is, the gas phase loop 12 is unobstructed, the transfer pump 7 is interlocked to close the reflux valve 11, close the feed valve 5, and the sound and light alarm in the central control room is released.

[0046] In this way, the heat of the high-melting-point material in the storage tank 1 can be used to melt the pipe opening at the top of the storage tank 1 that has been blocked by crystallization, thereby avoiding safety accidents caused by solidification and crystallization of the material at the top of the storage tank 1 blocking the gas phase loop 12, thereby improving the inherent safety level of the enterprise.

[0047] The nominal diameter of the gas phase loop 12 is 50 mm, and the nominal diameter of the reflux pipe 9 is 25 mm.

[0048] The distance between the bottom end of the reflux pipe 9 and the bottom of the inner cavity of the storage tank 1 is 200 mm.

[0049] Among them, the anti-blockage detection sensor structure 14 is an airflow sensor.

[0050] Embodiment 2

[0051] The structure of this embodiment is basically the same as that of the first embodiment, except that Figure 3 As shown, the heat-keeping structure includes a plurality of evenly arranged heat-insulating tubes 16, the ends of two adjacent heat-insulating tubes 16 are abutted, the pipeline is located at the center of the heat-insulating tube 16 and passes through the two ends of the heat-insulating tube 16, the outer wall of the heat-insulating tube 16 is vertically fixedly connected with a first connecting tube 18 and a second connecting tube 21, and the first connecting tube 18 and the second connecting tube 21 are respectively close to the two ends of the heat-insulating tube 16, a plug 19 is vertically fixed on the first connecting tube 18, a cylindrical fixing net 20 is provided on the pipe section of the plug 19 close to the outer end, a sleeve 22 is vertically fixed on the second connecting tube 21, and the plugs 19 at adjacent positions are inserted into the sleeve 22.

[0052] When multiple thermal insulation tubes 16 are evenly arranged on the outside of the corresponding pipelines and installed in place, two adjacent thermal insulation tubes 16 are connected through the first connecting pipe 18, the insert pipe 19, the sleeve 22 and the second connecting pipe 21, so as to transport steam or hot water in the multiple thermal insulation tubes 16 to improve the heating and insulation effect.

[0053] Among them, Figure 4 As shown, a sealing plate 23 is provided at a position of the second connecting tube 21 corresponding to the sleeve 22. The side of the sealing plate 23 away from the sleeve 22 is connected to the inner wall of the second connecting tube 21 through a spring, and a guide shaft 24 is fixed on this side. The end of the guide shaft 24 away from the sealing plate 23 passes through the side wall of the second connecting tube 21 and extends out.

[0054] When the insert tube 19 enters the second connecting tube 21, the corresponding sealing plate 23 at the end is moved away from the sleeve 22, so that the inner end of the sleeve 22 is opened, thereby realizing the connection between the two adjacent thermal insulation tubes 16. When the thermal insulation tube 16 is not in use, the sealing plate 23 is pressed tightly against the inner end of the sleeve 22 under the action of the spring, and the sleeve 22 is closed, thereby closing the second connecting tube 21, preventing foreign matter from entering the interior of the thermal insulation tube 16 during daily storage.

[0055] Embodiment 3

[0056] The structure of this embodiment is basically the same as that of the second embodiment, except that Figure 3 As shown, annular extension plates 17 are fixed at the through holes at both ends of the thermal insulation tube, and the extension plates 17 are in contact with the side walls of the pipeline, thereby increasing the contact area with the pipeline and improving the position stability and contact sealing of the thermal insulation tube 16 and the pipeline during installation.

[0057] like Figure 4 As shown, sealing gaskets are provided on the outer end of the sleeve 22, the side of the sealing plate 23 close to the sleeve 22, the side of the extension plate 17 close to the pipeline, and the position where the guide shaft 24 passes through the second connecting pipe 21 to improve the sealing performance of the heat tracing and insulation structure.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", 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 utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0059] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A material transfer and material reflux device with anti-blocking detection function, comprising a storage tank (1) and a nitrogen supply system (13), wherein the nitrogen supply system (13) is connected to the top of the storage tank (1) through a gas phase loop (12), characterized in that: The top of the storage tank (1) is connected to a feed pipe (3), one end of the feed pipe (3) away from the storage tank (1) is connected to a discharge pump (2), the discharge pump (2) is connected to a discharge pipe (4), and the feed pipe (3) is provided with a discharge pump (2); A heating pipe (15) is provided at the bottom of the storage tank (1), both ends of the heating pipe (15) extend out of the storage tank (1) and are connected to valves, and the portion of the heating pipe (15) located in the inner cavity of the storage tank (1) is configured as a coil; The bottom of the storage tank (1) is connected to a first material transfer pipe (6), one end of the first material transfer pipe (6) away from the storage tank (1) is connected to a material transfer pump (7), and the material transfer pump (7) is connected to a second material transfer pipe (8), and the second material transfer pipe (8) is provided with a discharge valve (10); The second material transfer pipe (8) is connected to a reflux pipe (9), and the connection point is located between the discharge valve (10) and the material transfer pump (7). The reflux pipe (9) is provided with a reflux valve (11). The end of the reflux pipe (9) away from the second material transfer pipe (8) is inserted into the gas phase loop (12) and extends downward, and the bottom end of the reflux pipe (9) is close to the bottom of the inner cavity of the storage tank (1); The gas phase loop (12) is provided with an anti-blocking detection sensor structure (14), the anti-blocking detection sensor structure (14), the feed valve (5), the discharge valve (10) and the return valve (11) are all connected to a controller, the controller is also connected to an audible and visual alarm, and the feed valve (5), the discharge valve (10) and the return valve (11) are all set as cut-off valves; The reflux pipe (9), the first material transfer pipe (6) and the second material transfer pipe (8) are all provided with a heat tracing and heat preservation structure.

2. The material transfer and material reflux device with anti-blocking detection function according to claim 1 is characterized in that: The heat tracing and heat-insulating structure comprises a plurality of evenly arranged heat-insulating and heat-insulating tubes (16), the ends of two adjacent heat-insulating and heat-insulating tubes (16) are butted against each other, the pipeline is located at the center of the heat-insulating and heat-insulating tube (16) and passes through the two ends of the heat-insulating and heat-insulating tube (16), the outer wall of the heat-insulating and heat-insulating tube (16) is vertically fixedly connected with a first connecting tube (18) and a second connecting tube (21), and the first connecting tube (18) and the second connecting tube (21) are respectively close to the two ends of the heat-insulating and heat-insulating tube (16), the first connecting tube (18) is vertically fixedly provided with an insert tube (19), the tube section of the insert tube (19) close to the outer end is provided with a cylindrical fixing net (20), the second connecting tube (21) is vertically fixedly provided with a sleeve tube (22), and the insert tubes (19) at adjacent positions are inserted into the sleeve tube (22).

3. The material transfer and material reflux device with anti-blocking detection function according to claim 2 is characterized in that: A sealing plate (23) is provided at a position of the second connecting tube (21) corresponding to the sleeve (22); a side of the sealing plate (23) away from the sleeve (22) is connected to the inner wall of the second connecting tube (21) via a spring, and a guide shaft (24) is fixed on the side; an end of the guide shaft (24) away from the sealing plate (23) passes through the side wall of the second connecting tube (21) and protrudes.

4. The material transfer and material reflux device with anti-blocking detection function according to claim 3 is characterized in that: Annular extension plates (17) are fixed to the through holes at both ends of the thermal insulation cylinder, and the extension plates (17) are in contact with the side wall of the pipeline.

5. The material transfer and material reflux device with anti-blocking detection function according to claim 4 is characterized in that: Sealing gaskets are provided on the outer end of the sleeve (22), the side of the sealing plate (23) close to the sleeve (22), the side of the extension plate (17) close to the pipeline, and the position on the second connecting pipe (21) where the guide shaft (24) passes through.

6. The material transfer and material reflux device with anti-blocking detection function according to claim 1, characterized in that: The nominal diameter of the gas phase loop (12) is 50 mm, and the nominal diameter of the return pipe (9) is 25 mm.

7. The material transfer and material reflux device with anti-blocking detection function according to claim 1, characterized in that: The distance between the bottom end of the reflux pipe (9) and the bottom of the inner cavity of the storage tank (1) is 200 mm.

8. The material transfer and material reflux device with anti-blocking detection function according to any one of claims 1 to 6, characterized in that: The anti-blockage detection sensor structure (14) is an airflow sensor.

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