CN211706718U - Centralized feeding device and system - Google Patents

Abstract

The utility model discloses a centralized feeding device and a system, on the one hand the utility model provides a centralized feeding device, including storage tank, first pans, second pans, feeding cabinet, pressure compensator and two superchargers, the storage tank is the atmospheric pressure jar, first pans and second pans are the pressure boost jar, the feed end of first pans communicates with the discharge end of storage tank, the discharge end of first pans communicates with the feed end of feeding cabinet, the feed end of second pans communicates with the discharge end of storage tank, the discharge end of second pans communicates with the feed end of feeding cabinet, the storage tank communicates with the pressure compensator, first pans and second pans communicate with two superchargers respectively; on the other hand, a centralized feeding system is provided; the problem of among the prior art ISO jar as raw materials supply tank, the security is low, with high costs is solved.

Description

Centralized feeding device and system

technical field

The utility model relates to the technical field of fluid hazardous chemicals feeding, in particular to a centralized feeding device and a system.

Background technique

The common system feeding method of chemical materials is the pressurized feeding method. The stored tank is first pressurized through the feeding equipment to keep a stable pressure in the tank, and the chemical material liquid is pressed from the tank by the pressure. out, and then transported to the production equipment through pipelines.

However, the ISO tank is directly used as a supply tank, and there is not only a cost problem that needs to be paid for rent. Due to the uncontrollable safety risk of long-term pressurized supply of large containers, the large ball valve of ISO tank is prone to internal leakage of nitrogen gas for maintaining pressure, which makes it difficult to detect leakage during refueling, which is easy to cause misjudgment and cause leakage risk.

Utility model content

The purpose of the utility model is to overcome the above-mentioned technical deficiencies, provide a centralized feeding device and system, and solve the problems of low safety and high cost of ISO tanks as raw material supply tanks in the prior art.

In order to solve the above-mentioned technical problems, on the one hand, the present utility model provides a centralized feeding device, which includes a material storage tank, a first intermediate tank, a second intermediate tank, a feeding cabinet, a pressure compensation device and two superchargers. The tank is a normal pressure tank, the first intermediate tank and the second intermediate tank are both pressurized tanks, the feed end of the first intermediate tank is communicated with the discharge end of the storage tank, and the first intermediate tank is in communication with the discharge end of the storage tank. The discharge end of the tank is communicated with the feed end of the feeding cabinet, the feed end of the second intermediate tank is communicated with the discharge end of the storage tank, and the discharge end of the second intermediate tank is connected to the discharge end of the storage tank. The feeding end of the feeding tank is in communication, the storage tank is in communication with the pressure booster, and the first intermediate tank and the second intermediate tank are in communication with the two pressure boosters, respectively.

On the other hand, the present invention provides a centralized feeding system, which includes the above-mentioned centralized feeding device, and also includes an ISO tanker, an unloading cabinet and production equipment, the feeding end of the unloading cabinet and the discharging end of the ISO tanker The discharging end of the unloading cabinet is connected with the feeding end of the storage tank, and the discharging end of the feeding cabinet is connected with the feeding end of the production equipment.

The beneficial effects of the utility model are: different from the situation in the prior art, the utility model is used for storing chemical materials under normal pressure by setting a large-scale normal-pressure storage tank. Compared with the original ISO tank for storing chemical materials, the utility model does not need The first intermediate tank and the second intermediate tank are both small-volume pressurized tanks, and the first intermediate tank and the second intermediate tank are connected with the storage tank to achieve a small volume. Volume pressure feeding, higher safety.

Description of drawings

Fig. 1 is the structural representation of the centralized feeding device of the present utility model;

Fig. 2 is the top view of the centralized feeding device of the present invention;

Fig. 3 is the schematic diagram of the utility model centralized feeding system;

FIG. 4 is a schematic diagram of the connection between the centralized feeding system of the present invention and the production equipment.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

As shown in Figures 1-2, on the one hand, the present utility model provides a centralized feeding device 300, including a storage tank 310, a first intermediate tank 320, a second intermediate tank 330, a feeding cabinet 340, a pressure compensator 370 and two The supercharger 390, during implementation, the storage tank 310 is used to store the chemical materials unloaded by the ISO tanker 100, and the storage method is atmospheric pressure storage, and the first intermediate tank 320 and the second intermediate tank 330 are high-pressure tanks. The volumes of the first intermediate tank 320 and the second intermediate tank 330 are much smaller than the volume of the storage tank 310. The chemical materials stored in the storage tank 310 are introduced into the first intermediate tank 320 and the second intermediate tank 330, and pass through the supply cabinet 340 feeds the production equipment 400. In the entire centralized feeding device 300, only the first intermediate tank 320 and the second intermediate tank 330 use high pressure, and the storage tank 310 is at normal pressure, which greatly improves the safety.

The storage tank 310 in this embodiment is a normal pressure tank, the first intermediate tank 320 and the second intermediate tank 330 are both pressurized tanks, and the feed end of the first intermediate tank 320 is communicated with the discharge end of the storage tank 310 , the discharge end of the first intermediate tank 320 is communicated with the feed end of the feeding cabinet 340, the feed end of the second intermediate tank 330 is communicated with the discharge end of the storage tank 310, and the discharge end of the second intermediate tank 330 The material storage tank 310 is in communication with the pressure booster 370 , and the first intermediate tank 320 and the second intermediate tank 330 are in communication with the two pressure boosters 390 respectively.

The top of the storage tank 310 is provided with a pressure booster 370. The pressure booster 370 feeds an inert gas, such as nitrogen, into the storage tank 310. When a part of the chemical material in the storage tank 310 flows into the first intermediate tank 320 or When the second intermediate tank 330 is used, the pressure compensator 370 fills the inert gas into the storage tank 310, so that the pressure in the storage tank 310 is always maintained at a stable value. The chemical material in the storage tank 310 is squeezed out of the storage tank 310 from the lower discharge port of the storage tank 310 .

The structure and size of the first intermediate tank 320 and the second intermediate tank 330 are the same. The mechanism of the first intermediate tank 320 will be described in detail below. The bottom of the first intermediate tank 320 and the outlet of the storage tank 310 The material ports are connected, and a supercharger 390 is installed on the top of the first intermediate tank 320. When the chemical material in the first intermediate tank 320 flows out from the discharge port, the supercharger 390 fills the first intermediate tank 320 with inert Gas, such as nitrogen, keeps the pressure in the first intermediate tank 320 at a stable value all the time, and the pressure value is high pressure, which presses down the chemical material in the first intermediate tank 320 and causes the chemical material to flow out from the discharge port .

The centralized feeding device 300 in this embodiment further includes four connecting pipes 350 , and the four connecting pipes 350 are the first connecting pipe, the second connecting pipe, the third connecting pipe and the fourth connecting pipe respectively. The first intermediate tank 320 The feed end of the first intermediate tank 320 is connected to the discharge end of the storage tank 310 through the first connecting pipe, the discharge end of the first intermediate tank 320 is connected to the feeding end of the feeding cabinet 340 through the second connecting pipe, and the second intermediate tank 330 The feed end of the second intermediate tank 330 is connected to the discharge end of the storage tank 310 through the third connection pipe, and the discharge end of the second intermediate tank 330 is connected to the feed end of the feed cabinet 340 through the fourth connection pipe, and the connection pipe 350 plays the role of The role of connection.

The centralized feeding device 300 in this embodiment further includes four valves 380. The four valves 380 correspond to the connecting pipes 350 one by one. The on-off of the connecting pipe 350.

The volume of the storage tank 310 is larger than the volume of the first intermediate tank 320 , the volume of the storage tank 310 is larger than the volume of the second intermediate tank, and the discharge end of the storage tank 310 is located at the bottom of the storage tank 310 . The volume is much larger than that of the first intermediate tank 320. Under the condition that the internal pressure of the storage tank 310 is maintained, the chemical material flows from the discharge port of the storage tank 310 to the first intermediate tank 320 or the second intermediate tank 330 under the action of gravity. .

As shown in FIG. 1 , the centralized feeding device 300 in this embodiment further includes a magnetic flap level gauge 361 and three guided wave radars 362. The magnetic flap level gauge 361 is installed on the storage tank 310, and the three The guided wave radars 362 are respectively installed inside the storage tank 310, inside the first intermediate tank 320 and inside the second intermediate tank 330, and adopt a more convenient and durable magnetic flap liquid level with a hysteresis analog signal. The gauge 361 can more intuitively read the liquid level height of the storage tank 310, and the guided wave radar 362 can measure the liquid level height of the storage tank 310, the first intermediate tank 320 and the second intermediate tank 330, and use the signal to measure the liquid level height. way to pass the data to the control system, so that it is easy to read and use these data.

Wherein, the pressure booster 370 has a pressure boosting end, and the pressure boosting end of the pressure booster 370 extends into the interior of the storage tank 310 , and the two boosters 390 each have a boosting end. The ends protrude into the interior of the first intermediate tank 320 and the interior of the second intermediate tank 330, respectively.

As shown in FIG. 3 , on the other hand, the present invention provides a centralized feeding system, which includes the above-mentioned centralized feeding device 300 , and also includes an ISO tanker 100 and an unloading cabinet 200 . The feeding end of the unloading cabinet 200 is connected to the ISO tanker 100 . The discharging end of the unloading cabinet 200 is connected to the feeding end of the storage tank 310 , and the discharging end of the feeding cabinet 340 is connected to the feeding end of the external production equipment 400 .

Among them, one unloading cabinet 200 unloads multiple ISO tankers 100 at the same time, and one unloading cabinet 200 connects multiple storage tanks 310 at the same time. For example, the ISO tanker 100 includes a first tanker 110 and a second tanker 120. ..... Nth tank car 130, which can be unloaded at the same time.

Preferably, the unloading cabinet 200 can be used for unloading 100 positions of two ISO tankers, and can be unloaded into any one of the large storage tanks 310. The unloading and feeding are carried out at the same time without affecting each other, and the ISO tanker 100 can be completely unloaded , The whole process of unloading is about six hours, and the unloading can be completed in one day shift. After the unloading is completed, the ISO tanker 100 can be disconnected from the centralized feeding system, and it is not necessary to hang on the system all the time.

As shown in FIG. 4 , the centralized feeding system corresponds to the production equipment 400 one by one, for example, the first system corresponds to the first equipment, the second system corresponds to the second equipment... The Nth system corresponds to the Nth equipment .

Workflow: first insert the unloading end of the ISO tanker 100 into the unloading cabinet 200, the discharge end of the unloading cabinet 200 is connected with the feeding end of the storage tank 310, and the chemical materials in the ISO tanker 100 pass through the unloading cabinet 200 is depressurized and stored in the storage tank 310. The top of the storage tank 310 is protected by a slight positive pressure nitrogen nitrogen seal. When the content of the chemical material in the storage tank 310 is reduced, nitrogen is added above the storage tank 310. , so that the interior of the storage tank 310 is kept in a normal pressure state, the first intermediate tank 320 and the second intermediate tank 330 are replenished by gravity flow, and the pressurizing device is connected to the first intermediate tank 320 and the second intermediate tank 330. Inert gas is injected into the first intermediate tank 320 and the second intermediate tank 330 to maintain a certain high pressure. During specific operation, the storage tank 310 replenishes the first intermediate tank 320, and the second intermediate tank 330 is closed. After the chemical material in the first intermediate tank 320 is filled up, the feeding end is closed, and the discharging end feeds the production equipment 400 through the feeding cabinet 340 . At this time, the feeding end of the second intermediate tank 330 communicates with the storage tank 310 , the storage tank 310 replenishes the second intermediate tank 330. After the second intermediate tank 330 is filled with gas, after a period of time, the chemical material in the first intermediate tank 320 is exhausted, and the feed end of the first intermediate tank 320 is exhausted. Open, the storage tank 310 replenishes the first intermediate tank 320, the discharge end of the first intermediate tank 320 is disconnected, the feed end of the second intermediate tank 330 is disconnected, and the discharge end of the second intermediate tank 330 is supplied The bin 340 supplies materials to the production equipment 400, and repeats the past to complete the process of supplying materials.

Different from the situation in the prior art, the utility model is used for storing chemical materials at atmospheric pressure by setting a large storage tank 310 at atmospheric pressure. The first intermediate tank 320 and the second intermediate tank 330 are both small-volume booster tanks, and the first intermediate tank 320 and the second intermediate tank 330 communicate with the storage tank 310 to achieve a small volume of pressure. Feeding, higher safety.

It should be noted that the above embodiments all belong to the same utility model concept, and the description of each embodiment has its own emphasis. For details that are not described in individual embodiments, reference may be made to descriptions in other embodiments.

The above-mentioned embodiments only represent the embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the patent of the present invention. It should be pointed out that for those of ordinary skill in the art, some modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for this utility model shall be subject to the appended claims.

Claims (9)

1. a centralized feeding device, is characterized in that, comprises a material storage tank, a first intermediate tank, a second intermediate tank, a feeding cabinet, a pressure compensator and two superchargers, and the material storage tank is a normal pressure tank, Both the first intermediate tank and the second intermediate tank are pressurized tanks, the feeding end of the first intermediate tank is communicated with the discharging end of the storage tank, and the discharging end of the first intermediate tank is connected to the discharging end of the storage tank. The feeding end of the feeding tank is communicated with the feeding end of the second intermediate tank, the feeding end of the second intermediate tank is communicated with the discharging end of the storage tank, and the discharging end of the second intermediate tank is communicated with the feeding end of the feeding cabinet. The feed end is in communication, the storage tank is in communication with the pressure booster, and the first intermediate tank and the second intermediate tank are in communication with the two pressure boosters, respectively. 2 . The centralized feeding device according to claim 1 , wherein the centralized feeding device further comprises four connecting pipes, and the four connecting pipes are the first connecting pipe, the second connecting Three connecting pipes and a fourth connecting pipe, the feed end of the first intermediate tank is connected to the discharge end of the storage tank through the first connecting pipe, and the discharge end of the first intermediate tank passes through the The second connecting pipe is connected with the feeding end of the feeding tank, the feeding end of the second intermediate tank is connected with the discharging end of the storage tank through the third connecting pipe, and the second The discharging end of the intermediate tank is connected with the feeding end of the feeding cabinet through the fourth connecting pipe. 3. The centralized feeding device according to claim 2, characterized in that, the centralized feeding device further comprises four valves, the four valves are in one-to-one correspondence with the connecting pipes, and each valve is installed separately on the corresponding connecting pipe. 4 . The centralized feeding device according to claim 1 , wherein the volume of the storage tank is greater than that of the first intermediate tank, and the volume of the storage tank is greater than that of the second intermediate tank. 5 . volume, the discharge end of the storage tank is located at the bottom of the storage tank. 5 . The centralized feeding device according to claim 1 , wherein the centralized feeding device further comprises a magnetic flap liquid level gauge and three guided wave radars, and the magnetic flap liquid level gauge is installed on the On the storage tank, the three guided wave radars are respectively installed inside the storage tank, inside the first intermediate tank and inside the second intermediate tank. 6 . The centralized feeding device according to claim 1 , wherein the pressure compensator has a pressure compensating end, and the pressure compensating end of the pressure compensator extends into the interior of the storage tank, and the two Each of the superchargers has a pressurizing end, and the air supply ends of the two superchargers respectively protrude into the interior of the first intermediate tank and the interior of the second intermediate tank. 7. A centralized feeding system, characterized in that it includes the centralized feeding device according to any one of claims 1 to 6, and also includes an ISO tanker and an unloading cabinet, and the feeding end of the unloading cabinet is connected to the ISO tank. The discharging end of the tank car is connected, the discharging end of the unloading cabinet is connected with the feeding end of the storage tank, and the discharging end of the feeding cabinet is connected with the feeding end of the external production equipment. 8 . The centralized feeding system according to claim 7 , wherein one of the unloading cabinets simultaneously unloads a plurality of the ISO tankers, and one of the unloading cabinets simultaneously docks a plurality of the said ISO tankers. 9 . Storage tank. 9 . The centralized feeding system according to claim 7 , wherein the centralized feeding system is in one-to-one correspondence with the production equipment. 10 .

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