Storage and nitrogen charging system for edible oil tank

Abstract

The utility model discloses an edible oil tank storage nitrogen charging system which comprises a nitrogen supply assembly, an oil tank assembly and a blow-down pipe which are connected in series, the oil tank assembly comprises at least two oil tanks which are connected with each other, the nitrogen supply assembly is configured to be capable of inputting nitrogen into at least one oil tank, and the blow-down pipe is used for receiving oxygen and nitrogen exhausted from the oil tank assembly. A monitoring piece is arranged on the blow-down pipe and is used for monitoring the residual oxygen amount in the blow-down pipe. According to the utility model, the residual oxygen amount can be monitored in real time so as to judge the nitrogen storage amount in the oil tank, and the quality of edible oil in the storage period is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of edible oil tank storage nitrogen charging systems, belong to oil storage technical field. BACKGROUND

[0002] During the storage of edible oil, the oxidation of oil and fat can affect its shelf life and food quality. At present, most of the edible oil tank storage period adopts nitrogen charging technology, and the starting point is mainly to control the nitrogen charging time of the tank body through the pressure change range of the tank body, but the residual oxygen amount in the tank cannot be accurately monitored, which affects the control of nitrogen amount, and the edible oil cannot be properly stored.

[0003] Therefore, it is necessary to improve the existing edible oil tank nitrogen charging system to solve the above problems. INVENTION CONTENTS

[0004] To solve the above technical problems, the utility model provides a kind of edible oil tank nitrogen charging system, which can monitor the nitrogen storage in the oil tank by real-time monitoring of residual oxygen amount, and then ensure the quality of edible oil storage.

[0005] The technical scheme of the utility model is:

[0006] A kind of edible oil tank storage nitrogen charging system, including series connection's nitrogen supply component, oil tank component and vent pipe, the oil tank component includes at least two mutually connected oil tanks, the nitrogen supply component is configured to be able to input nitrogen to at least one oil tank, the vent pipe is used to receive the oxygen and nitrogen discharged from the oil tank component, monitoring piece is provided on the vent pipe, and the monitoring piece is used to monitor the residual oxygen amount in the vent pipe.

[0007] As a further improvement of the utility model, the nitrogen supply component and the two oil tanks are connected in parallel, and the nitrogen supply component inputs nitrogen into the two oil tanks respectively, and the vent pipe is used to receive the oxygen and nitrogen discharged from the two oil tanks.

[0008] As a further improvement of the utility model, the vent pipe is connected between the vent pipe and the oil tank component, and the vent pipe and the two oil tanks are connected in series.

[0009] As a further improvement of the utility model, the nitrogen supply component and the oil tank component are connected by a nitrogen delivery pipe, the nitrogen delivery pipe and the exhaust pipe are independent of each other, and one end of the nitrogen delivery pipe close to the nitrogen supply component is provided with an adjusting valve, and the adjusting valve is used to control the delivery rate of nitrogen in the nitrogen delivery pipe.

[0010] As a further improvement of the utility model, the nitrogen delivery pipe is provided with at least two and is connected with two oil tanks respectively, one end of the two nitrogen delivery pipes close to the nitrogen supply assembly is provided with an adjusting valve, and the adjusting valve is used for controlling the nitrogen delivery rate in the corresponding nitrogen delivery pipe.

[0011] As a further improvement of the utility model, the adjusting valve is electrically connected with the monitoring member and is configured to adjust the nitrogen delivery rate in the nitrogen delivery pipe according to the value of the residual oxygen amount monitored by the monitoring member.

[0012] As a further improvement of the utility model, the nitrogen delivery rate in the nitrogen delivery pipe is proportional to the value of the residual oxygen amount monitored by the monitoring member.

[0013] As a further improvement of the utility model, the nitrogen supply assembly comprises a nitrogen storage tank, an evaporator and a nitrogen tank connected in series, and the evaporator is configured to evaporate the nitrogen liquid in the nitrogen storage tank into nitrogen gas and then input the nitrogen gas into the nitrogen tank to supply nitrogen to the oil tank assembly.

[0014] As a further improvement of the utility model, in the monitoring process of the monitoring member, the value of the residual oxygen amount in the vent pipe gradually decreases.

[0015] As a further improvement of the utility model, the nitrogen supply assembly is arranged in series between the two oil tanks, the nitrogen supply assembly inputs nitrogen gas into one of the oil tanks, the vent pipe is used for receiving the nitrogen gas and oxygen gas output from the other oil tank, and the monitoring member is arranged close to the vent pipe to monitor the residual oxygen amount in the vent pipe.

[0016] The beneficial technical effects of the utility model are as follows: the nitrogen supply assembly, the oil tank assembly and the vent pipe are arranged in series, so that the vent pipe can receive the oxygen gas and nitrogen gas discharged from the oil tank assembly, the monitoring member is arranged on the vent pipe to monitor the residual oxygen amount in the vent pipe in real time, the nitrogen gas amount in the oil tank is grasped, and the quality of the edible oil storage is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a kind of edible oil tank storage nitrogen charging system structure schematic diagram according to preferred embodiment of the utility model. DETAILED DESCRIPTION

[0018] In order to more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, the specific embodiments of the utility model are further described in detail below, the following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0019] The utility model discloses a kind of edible oil tank storage nitrogen charging systems 100, including series connection's nitrogen supply assembly 1, oil tank assembly 2 and vent pipe 3, the oil tank assembly 2 includes at least two mutually connected oil tanks 21, the nitrogen supply assembly 1 is configured to at least one oil tank 21 can be input nitrogen gas therein, the vent pipe 3 is used to receive oxygen and nitrogen gas discharged from the oil tank assembly 2, monitoring piece 4 is equipped on the vent pipe 3, and the monitoring piece 4 is used to monitor residual oxygen content in the vent pipe 3.

[0020] In the embodiment, the nitrogen supply assembly 1 and the two oil tanks 21 are connected in parallel, the nitrogen supply assembly 1 inputs nitrogen gas into the two oil tanks 21 respectively, and the vent pipe 3 is used to receive oxygen and nitrogen gas discharged from the two oil tanks 21.

[0021] Preferably, the vent pipe 3 and the oil tank assembly 2 are connected with an exhaust pipe 31, the connection position of the exhaust pipe 31 and the oil tank assembly 2 is close to the top of the oil tank assembly 2, and the exhaust pipe 3 is connected with the two oil tanks 21 in series. This is based on the nitrogen gas after filling into the oil tank 21, will sink into the bottom of the oil tank 21, and the oxygen is located above the oil tank 21, so as to ensure that the oxygen is discharged, so that the oil tank 21 has sufficient nitrogen gas, and then the quality of edible oil is protected. The oil tanks 21 arranged in series can monitor the amount of nitrogen gas in all oil tanks 21 at the same time and uniformly deliver nitrogen gas.

[0022] Preferably, the nitrogen supply assembly 1 and the oil tank assembly 2 are connected with a nitrogen delivery pipe 10, the nitrogen delivery pipe 10 is independent of the exhaust pipe 31, and an adjusting valve 101 is arranged at one end close to the nitrogen supply assembly 1, and the adjusting valve 101 is used to control the delivery rate of nitrogen gas in the nitrogen delivery pipe 10.

[0023] In the embodiment, the nitrogen delivery pipe 10 is provided with at least two and connected with the two oil tanks 21 respectively, and the adjusting valve 101 is arranged at one end close to the nitrogen supply assembly 1 of the two nitrogen delivery pipes 10, and the adjusting valve 101 is used to control the delivery rate of nitrogen gas in the corresponding nitrogen delivery pipe 10.

[0024] The adjusting valve 101 is electrically connected with the monitoring piece 4, and is configured to adjust the delivery rate of nitrogen gas in the nitrogen delivery pipe 10 according to the value of residual oxygen content monitored by the monitoring piece 4. The delivery rate of nitrogen gas in the nitrogen delivery pipe 10 is proportional to the value of residual oxygen content monitored by the monitoring piece 3.

[0025] Of course, several vent pipes 3 can also be provided, and each oil tank 21 is connected with a separate vent pipe 3, and a separate monitoring piece 4 is arranged around each vent pipe 3, so as to realize separate monitoring and more accurately control the amount of nitrogen gas in a single oil tank 21.

[0026] In the embodiment, in order to realize automatic nitrogen filling, a PLC control system is used for control, the regulating valve 101 and the monitoring member 4 are connected to the PLC system, and preset values are set in the PLC system. During the monitoring of the monitoring member, when sufficient nitrogen is injected into the oil tank 21, and the nitrogen enters the vent pipe 3, the monitored residual oxygen value in the vent pipe 3 gradually decreases. That is, the sequence of the gas entering the vent pipe 3 is oxygen first and nitrogen second.

[0027] When the monitored residual oxygen value of the monitoring member 4 is greater than the preset value in the PLC system, the PLC system activates the regulating valve 101 and increases the delivery speed of the nitrogen in the nitrogen delivery pipe 10. When the monitored residual oxygen value of the monitoring member 4 is less than the preset value in the PLC system, the PLC system controls and reduces the delivery speed of the nitrogen in the nitrogen delivery pipe 10 until the regulating valve 101 is turned off. In this way, the quality of the oil during storage can be monitored synchronously, the residual oxygen range of the nitrogen in the vent pipe 3 can be reasonably adjusted, and the residual oxygen amount above the oil tank 21 can be effectively controlled, thereby ensuring the safety of the edible oil during storage.

[0028] The nitrogen supply assembly 1 comprises a nitrogen storage tank 11, an evaporator 12 and a nitrogen tank 13 connected in series, the evaporator 12 is configured to evaporate the nitrogen liquid in the nitrogen storage tank 11 into nitrogen gas and input the nitrogen gas into the nitrogen tank 13, so as to supply nitrogen to the oil tank assembly 2.

[0029] Optionally, the nitrogen supply assembly 1 is arranged in series between two oil tanks 21, the nitrogen supply assembly 1 inputs nitrogen into one of the oil tanks 21, the vent pipe 3 is used for receiving the nitrogen and oxygen output from the other oil tank 21, and the monitoring member 4 is arranged close to the vent pipe 3 to monitor the residual oxygen amount in the vent pipe 3. That is, after the nitrogen in one oil tank 21 is filled, the other oil tank 21 is filled, but this is accurate for processing a certain oil tank 21.

[0030] In summary, the edible oil tank storage nitrogen filling system 100 of the utility model can receive the oxygen and nitrogen discharged from the oil tank 21 assembly through the series connection of the nitrogen supply assembly 1, the oil tank assembly 2 and the vent pipe 3, and the residual oxygen amount in the vent pipe 3 is monitored in real time through the monitoring member 4 arranged on the vent pipe 3, so as to grasp the nitrogen storage amount in the oil tank 21, and then ensure the quality of the edible oil storage.

[0031] The above merely is preferred implementation manner of the present application, and is not used for limiting the present application, it should be pointed out, for ordinary skilled person in the technical field, on the premise of not departing from the technical principle of the present application, can also make several improvements and variations, these improvements and variations also should be regarded as the protection scope of the present application.

Claims

1. An edible oil tank storage nitrogen charging system characterized by, The nitrogen supply assembly, the oil tank assembly and the venting pipe are connected in series, the oil tank assembly comprises at least two oil tanks connected with each other, the nitrogen supply assembly is configured to input nitrogen into at least one of the oil tanks, and the venting pipe is used for receiving oxygen and nitrogen discharged from the oil tank assembly.

2. The edible oil tank storage nitrogen charging system according to claim 1, wherein The nitrogen supply assembly and the two oil tanks are connected in parallel, the nitrogen supply assembly inputs nitrogen into the two oil tanks respectively, and the venting pipe is used for receiving oxygen and nitrogen discharged from the two oil tanks.

3. The edible oil tank storage nitrogen charging system according to claim 2, wherein, The venting pipe is connected with the oil tank assembly, and the venting pipe and the two oil tanks are connected in series.

4. The edible oil tank storage nitrogen charging system according to claim 3, wherein The nitrogen supply assembly and the oil tank assembly are connected with the nitrogen delivery pipe, the nitrogen delivery pipe is independent of the venting pipe, one end of the nitrogen delivery pipe close to the nitrogen supply assembly is provided with an adjusting valve, and the adjusting valve is used for controlling the delivery rate of nitrogen in the nitrogen delivery pipe.

5. The edible oil tank storage nitrogen flushing system of claim 4, wherein, The nitrogen supply assembly and the oil tank assembly are connected with the nitrogen delivery pipe, the nitrogen delivery pipe is independent of the venting pipe, one end of the nitrogen delivery pipe close to the nitrogen supply assembly is provided with an adjusting valve, and the adjusting valve is used for controlling the delivery rate of nitrogen in the nitrogen delivery pipe.

6. The edible oil tank storage nitrogen charging system according to any one of claims 4 or 5, wherein, The adjusting valve is electrically connected with the monitoring member, and is configured to adjust the delivery rate of nitrogen in the nitrogen delivery pipe according to the value of residual oxygen monitored by the monitoring member.

7. The edible oil tank storage nitrogen flushing system of claim 6, wherein, The delivery rate of nitrogen in the nitrogen delivery pipe is proportional to the value of residual oxygen monitored by the monitoring member.

8. The edible oil tank storage nitrogen flushing system of claim 1, wherein, The nitrogen supply assembly comprises a nitrogen storage tank, an evaporator and a nitrogen tank connected in series, the evaporator is configured to evaporate nitrogen liquid in the nitrogen storage tank into nitrogen gas and then input the nitrogen gas into the nitrogen tank, so as to supply nitrogen to the oil tank assembly.

9. The edible oil tank storage nitrogen flushing system of claim 1, wherein, During the monitoring of the monitoring member, the value of residual oxygen in the venting pipe gradually decreases.

10. The edible oil tank storage nitrogen flushing system of claim 1, wherein, The nitrogen supply assembly and the two oil tanks are connected in series, the nitrogen supply assembly inputs nitrogen into one of the oil tanks, and the venting pipe is used for receiving nitrogen and oxygen output from the other oil tank, and the monitoring member is arranged close to the venting pipe to monitor the residual oxygen in the venting pipe.

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