JP4570744B2 - Gaseous material supply system and recording medium - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a gaseous material supply system and a recording medium. For example, the present invention relates to a gas raw material supply system and a recording medium for supplying a gas raw material to each business entity in a petrochemical complex composed of a plurality of business entities.
[0002]
[Background]
Ethylene and propylene are important as raw materials for various chemical derivatives. For example, polyethylene, ethylene oxide, acetaldehyde, etc. are obtained from ethylene, and polypropylene, acrylonitrile, etc. are obtained from propylene.
Conventionally, as a method for supplying ethylene or the like to each customer, there are a method in which ethylene or the like is once liquefied and pressurized after being pumped, and a method in which the rectifying tower top gas is supplied as a gas.
[0003]
[Problems to be solved by the invention]
Among conventional supply methods, the liquefied supply method requires a large amount of energy for condensation of ethylene gas and the like, and also requires a heat source for gasification again.
On the other hand, although the method of supplying the gas as it is does not have the above-mentioned problem, it is necessary to install a compressor for sending the gas and to perform an optimum operation of the compressor. However, for that purpose, it is necessary to grasp the demand amount of ethylene and the like, but at present, it is difficult to always grasp the demand amount of each user accurately, so the optimum operation of the compressor has not been realized. Is real.
[0004]
Conventionally, it has been necessary to control the air supply pressure in accordance with the consumer who needs the maximum pressure among the consumers. However, this is an excessive air supply pressure in relation to the supply amount and demand amount of the entire ethylene, and there is a problem that economic disadvantages are large.
[0005]
An object of the present invention is to solve such conventional problems, the amount of each consumed electric user, using pressure and used for the predetermined amount, to grasp the use schedule pressure, so that the gas precursor can be efficiently supplied Another object of the present invention is to provide a gas material supply system and a recording medium.
[0006]
[Means for Solving the Problems]
The gas raw material supply system and recording medium of the present invention employ the following configuration in order to achieve the above object.
According to the first aspect of the present invention , in a complex having a supplier having a gas raw material production apparatus and a plurality of consumers using the gas raw material, the supplier side pressurizes the gas raw material produced by the gas raw material production apparatus. information a gas material supply system to the plurality of consumed electric user, a server provided to the supplier of gas material, and a terminal provided in each consumed electric side and a the server and the terminal each other Te and an information network to exchange connected, the terminal may use the amount of gas material that the consumed electric's body is used, use predetermined quantity of the used pressure and now enter the scheduled use pressure input means, usage this input by the input means, the amount planned for beauty using Oyo pressure use, and means for transmitting the scheduled use pressure to said server, said server usage, working pressure and used for a predetermined amount, use premixed Group memory means, usage input from the terminal, using pressure and used for the predetermined amount, and means for storing the scheduled use pressure in the storage means, the information stored in said storage means for storing pressure And a means for determining the supply amount and supply pressure of the gaseous raw material.
[0007]
According to the gas material supply system, the amount of gas material that the consumed electric user from the terminal is using, use predetermined quantity of the used pressure and now, if you enter a use schedule pressure, such information is Sent to the server. The server usage gas material that is input from a terminal, using a predetermined amount of the used pressure and now causes stored in the storage means using scheduled pressure, the gas raw material based on the information stored in the storage means Determine the supply amount and supply pressure. Accordingly, whereby operate the gas material production equipment so that it can satisfy the supply amount of the gas material obtained, and, by controlling the air pressure based on the supply pressure, the gas material against the consumed's It can be supplied efficiently.
[0008]
Here, the gas raw material refers to, for example, ethylene, propylene and the like.
The information network is a communication means for communicating information between the supply side and the consumer side. As the communication means, an optical fiber, a wired circuit using an analog signal or a digital signal, a public line, a wireless circuit using an analog signal or a digital signal, the Internet, a modem, and a telephone line may be used. In particular, an optical fiber is preferable from the viewpoint of communication speed. Moreover, as a system, a server client system etc. can be used conveniently.
[0009]
According to a second aspect of the present invention, in the gaseous raw material supply system according to the first aspect, the supplier side and each consumer side are a basic pipeline connected to the supplier side, and the basic pipeline Are connected by branch pipelines that branch from each customer and each branch pipeline is provided with a flow meter and a pressure gauge for detecting the amount of gas raw material used and the pressure used. The gas source supply system is characterized in that detection data from a meter is input from each terminal.
According to this gaseous raw material supply system, the supplier side and each customer side are connected via a main pipeline and a branch pipeline, and each branch pipeline is provided with a flow meter and a pressure gauge. Since the detected value from the pressure gauge is input as the usage amount and pressure of the gas raw material used by each consumer, the above information is automatically obtained without imposing a burden on the consumer side. Can be entered.
[0010]
According to a third aspect of the present invention, in the gaseous raw material supply system according to the second aspect, a supply valve is provided in each branch pipeline, and the server is configured based on a signal from the pressure gauge. It is a gaseous raw material supply system characterized by controlling the opening degree of each supply valve.
According to this gaseous material supply system, the server controls the opening of the supply valve of each branch pipeline based on a signal from a pressure gauge provided in the branch pipeline. The air pressure can be set low. By the way, in the conventional system, the air supply pressure on the supply side is set according to the customer who demands the maximum pressure. However, according to the system of the present invention, the supply valve to other users is provided. Supply to customers who require the maximum pressure with low air supply pressure (provided that the air supply pressure of other users is sufficient to be lower than the current pressure) realizable.
In addition, the server controls the opening of the supply valve of each branch pipeline based on the signal from the pressure gauge, taking into account the minimum pressure required for each consumer, thereby supplying the supply air pressure on the supply side. Energy saving effect can be expected.
[0011]
According to a fourth aspect of the present invention, in the gaseous raw material supply system according to the second or third aspect, the server calculates an optimal supply amount of the gaseous raw material based on the information stored in the storage means. It is the gaseous raw material supply system characterized by having the calculation means to do.
According to this gaseous raw material supply system, the optimum supply amount of the gaseous raw material is automatically determined based on the information stored in the storage means, that is, the usage amount of the consumer, the usage pressure and / or the planned usage amount, and the planned usage pressure. Therefore, the optimum supply amount can be determined easily and quickly.
Here, the optimum supply amount refers to the production amount of the gas raw material that produces the maximum effect at the lowest cost as the entire complex.
[0012]
The invention according to claim 5 is the gas source supply system according to any one of claims 1 to 4, wherein the server has a calculation means for calculating a cost caused by the use of the gas source. This is a gaseous material supply system.
According to this gaseous raw material supply system, since the expense caused by the use of the gaseous raw material is automatically calculated, the burden of billing work can be reduced.
Here, the expense caused by the use of the gas raw material is a fee for using the gas raw material, and is an amount paid to the supply side supplying the gas raw material. Regarding the payment of expenses, there is a means for directly contacting the bank about the cost information, and the procedure can be further simplified by making an automatic transfer in the bank account.
[0013]
A sixth aspect of the present invention is a recording medium in which a program for controlling the gaseous material supply system according to any one of the first to fifth aspects is recorded.
According to this recording medium, control of the gaseous raw material supply system according to any one of claims 1 to 5 can be executed using a computer.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows this embodiment. The present embodiment is an example of a complex having a gas raw material (ethylene) supply system. In this complex, a business entity D that is an ethylene manufacturer and a plurality of business entities A, B, and C that are consumers are distributed.
Terminals 10A, 10B, and 10C are installed in each business entity A to C that is a consumer, and an ethylene production and supply device 30 that is a gas raw material production and supply device and a server 20 are installed in a business entity D that is a supplier. In addition, an information network NW that connects the terminals 10A to 10C and the server 20 so as to exchange information with each other is provided.
[0015]
Here, as shown in FIG. 2, a backbone pipeline 32 connected to the ethylene production and supply device 30 via a compressor 31 and the backbone are provided between the ethylene production and supply device 30 and each business entity A to C. Branch pipelines 33A, 33B, and 33C branched from the pipeline 32 and reaching the business entities A to C are piped. That is, the ethylene produced by the ethylene production and supply device 30 is supplied to each business entity A to C through the main pipeline 32 and the branch pipelines 33A to 33C.
Supply valves 34A, 34B, 34C, flow meters 35A, 35B, 35C and pressure gauges 36A, 36B, 36C are inserted into the branch pipelines 33A to 33C, respectively. The flow meters 35A to 35C detect the amount of ethylene used in each business entity A to C, and the pressure gauges 36A to 36C detect the pressure used for ethylene used in each business entity A to C, respectively.
[0016]
The terminals 10A to 10C include a control unit 14 including a display unit 11, an input unit 12, a storage unit 13, and a CPU. The control means 14 includes the values detected by the flow meters 35A to 35D and the pressure gauges 36A to 36C (the amount of ethylene used and the pressure used by each business entity A to C) and information input from the input means 12 (each company). The future use amount of ethylene and the planned use pressure of the body are transmitted to the server 20 and the content received from the server 20 is displayed on the display means 11. That is, it has a transmission means and a display control means.
[0017]
As shown in FIG. 3, the server 20 includes a display unit 21, an input unit 22, a storage device 23, a control unit 24 including a CPU connected to the information network NW via an input / output control unit 25, A valve control unit 26 is connected to the control unit 24 and controls the opening degree of the supply valves 34A to 34C of the branch pipelines 33A to 33C.
[0018]
The storage device 23 includes a program storage unit 23A as a recording medium that stores a program for controlling the server 20, use amount storage means 23B that stores the use amount and use pressure of ethylene of each business entity A to C, and each company. It includes a planned use amount storage means 23C for storing a future use amount of ethylene and a planned use pressure of the bodies A to C, and a business information storage means 23D for storing business information such as the price of ethylene.
As shown in FIG. 4, the usage amount storage means 23 </ b> B stores, for each business entity A to C, actual usage data of ethylene usage and usage pressure of the business entity.
As shown in FIG. 5, the planned usage amount storage means 23 </ b> C stores, for each business entity A to C, the planned usage amount and the planned usage pressure of ethylene that the business entity plans to use in the future. ing.
[0019]
The control means 24 is means for storing the use amount and use pressure of ethylene and the expected use amount and the expected use pressure input from the terminals 10A to 10C in the use amount storage means 23B and the expected use amount storage means 23C, respectively. (Writing means), means for determining the supply amount and supply pressure of ethylene based on the information stored in the use amount storage means 23B and the planned use amount storage means 23C, and the business information storage means 23D Publishing means for making the sales information public to the terminals 10A to 10C, and calculating means for calculating the optimum supply amount of ethylene based on the information respectively stored in the use amount storage means 23B and the planned use amount storage means 23C (Optimum supply amount calculation means) and calculation means (cost calculation means) for calculating costs caused by the use of ethylene.
[0020]
In such a configuration, the amount of ethylene used and the pressure used by each business unit A to C from each terminal 10A to 10C, and the future amount and pressure of ethylene used by each business unit A to C in the future. Enter. At this time, the usage amount and the usage pressure are automatically input in real time from the flow meters 35A to 35C and the pressure meters 36A to 36C. The scheduled use amount and the scheduled use pressure are input from the input means 12 periodically (for example, every other week or every other month). Then, those pieces of information are sent to the server 20 via the terminals 10A to 10C and the information network NW.
[0021]
In the server 20, the received usage amount and usage pressure of each of the business entities A to C are stored in the usage amount storage unit 23B and the scheduled usage amount storage unit 23C, respectively. Accordingly, the server 20 displays the ethylene usage and usage pressure, the usage usage and usage pressure, and the usage usage and storage pressure stored in the usage amount storage means 23B and the expected usage quantity storage means 23C. 11 can be confirmed.
Further, the supply amount and supply pressure of ethylene are determined based on the information stored in the use amount storage means 23B and the planned use amount storage means 23C. Based on this determination, the ethylene production and supply device 30 and the compressor 31 are operated.
[0022]
Here, when the server 20 commands the calculation of the optimum supply amount of ethylene for the entire complex, the server 20 stores the ethylene of each business entity A to C stored in the usage amount storage means 23B and the expected usage amount storage means 23C, respectively. The optimum supply amount of ethylene is calculated on the basis of the amount and pressure of use and the planned amount and pressure of future use of ethylene. That is, the production amount of ethylene is calculated so as to produce the maximum effect at the lowest cost as the entire complex.
Accordingly, the business entity D that owns the ethylene production and supply device 30 makes an ethylene production plan so that the calculated optimum supply amount of ethylene can be secured, and operates the ethylene production and supply device 30 according to the plan. Ethylene produced by the operation of the ethylene production and supply device 30 is supplied to each business entity A to C through the main pipeline 32 and the branch pipelines 33A to 33C.
[0023]
At this time, the server 20 calculates the cost caused by the use of ethylene based on the supply amount and supply pressure of ethylene supplied to each business entity A to C, and charges the business entity using ethylene.
[0024]
Therefore, according to this embodiment, the following effects can be expected.
(1) In each of the terminals 10A to 10C, the amount of ethylene used and the pressure used by its own business entities A to C, and the amount of ethylene to be used and the pressure to be used in the future are input. Since it was made possible to confirm the amount of ethylene used and the pressure used by each business unit A to C, and the future amount and planned pressure of ethylene used, the business unit that owns the ethylene production and supply device 30 In D, the supply amount and supply pressure of ethylene necessary for the entire complex can be grasped. Therefore, if the gas raw material manufacturing apparatus 30 is operated so that the supply amount of ethylene obtained in this way can be satisfied and the air supply pressure of the compressor 31 is controlled based on the supply pressure, ethylene is supplied to the customer. Can be supplied efficiently.
Moreover, with such a system, it is not necessary for each of the business entities A to C to procure ethylene independently, so that the amount of inventory can be reduced, and the ethylene production and supply device 30 can also be used effectively, and as a whole complex Cost reduction can be realized.
[0025]
(2) Since the server 20 has calculation means for calculating the optimum supply amount of ethylene based on the information stored in the use amount storage means 23B and the planned use amount storage means 23C, each business entity A The optimum supply amount of ethylene can be easily and quickly determined based on the amount of ethylene used, the pressure used and the amount scheduled to be used, and the pressure scheduled to be used.
Even if the supply amount of ethylene is less than the demand amount, the amount of ethylene provided to any plant is determined by discriminating the operation information of each business entity A to C through the information network NW. It is also possible to judge whether it is optimal as a whole complex.
[0026]
(3) Since the server 20 has a calculation means for calculating the cost caused by the use of ethylene, the cost caused by the use of ethylene can be automatically calculated, and the burden of billing work can be reduced.
At that time, for the payment of expenses, there is a means for directly contacting the bank about the cost information, and the procedure can be further simplified by making an automatic transfer in the bank account.
[0027]
(4) The server 20 controls the openings of the supply valves 34A to 34C of the branch pipelines 33A to 33C based on signals from the pressure gauges 36A to 36C provided in the branch pipelines 33A to 33C. Therefore, the air supply pressure of the ethylene production and supply device 30 can be set low.
That is, in the conventional system, the air supply pressure on the supply side is set according to the enterprise that requires the maximum pressure, but according to the system of the present embodiment, the supply valve 34A to other enterprises is provided. By narrowing the opening of ˜34C, it is possible to increase the pressure to the enterprise requiring the maximum pressure without changing the air supply pressure.
By the way, in the state where the opening degree of the supply valves 34A to 34C is not controlled, the supply pressure at the supply amount of 1700 tons was 1.8 MPa. Assuming 400 tons, 0.9 Mpa, 1300 tons and 1.1 MPa for enterprise B, 300 tons and 1.0 PM for enterprise C, the supply amount was 2000 tons and the supply pressure was 1.7 MPa.
[0028]
(5) Since the server 20 discloses the business information (for example, the price of ethylene) stored in the business information storage means 23D to each terminal 10A to 10C, each customer (each business entity A to C) can make a production plan based on this information. If the production plan is input from each of the terminals 10A to 10C, the supply side (enterprise entity A) can make an ethylene production plan while confirming this.
[0029]
In addition, in the said embodiment, in terminal 10A-10C of each business entity AC, the usage-amount of a gas raw material which each corporate entity AC uses, a usage pressure, a future usage-amount, and a usage-scheduled pressure are shown. Each is input, but at least one of them, that is, the usage amount of the gas raw material, the usage pressure or the future usage amount, and the usage scheduled pressure may be input.
[0030]
Moreover, in the said embodiment, in the terminal 10A-10C of each business entity AC, the usage-amount and usage pressure of ethylene which each business entity AC uses, and the planned usage amount and use of ethylene which are going to be used in the future Each of the planned pressures is input and the server 20 collectively manages them. However, the present invention is not limited to ethylene but can be applied to other gas raw materials such as propylene.
[0031]
In addition, when there are multiple production facilities for ethylene, propylene, etc., monitor the usage amount and pressure of ethylene and propylene used by each business entity A to C, and the planned usage amount and planned usage pressure in real time. By taking into account the minimum amount and pressure required by each consumer (each business entity), the energy saving effect can be achieved by reducing the pressure of the compressor of ethylene or propylene to the minimum required. In this case, air is usually supplied by a plurality of compressors, but it is also possible to control which device is operated at what load. Is possible.
[0032]
In the above embodiment, the complex having the ethylene supply system has been described. However, the present invention is not limited to the complex, and may be a system in which the supplier boosts the gas raw material and supplies it to a plurality of consumers. Any assembly may be used.
[0033]
【The invention's effect】
According to the gas material supply system and a recording medium of the present invention, the amount of each consumed electric user, using pressure and used for the predetermined amount, to grasp the use schedule pressure, efficient gas material for each demander Can supply.
[Brief description of the drawings]
FIG. 1 is a diagram showing a gaseous material supply system in a complex according to an embodiment of the present invention.
FIG. 2 is a diagram showing piping connecting between the ethylene production and supply apparatus and each business entity in the embodiment.
FIG. 3 is a block diagram showing a configuration of a server in the embodiment.
FIG. 4 is a view showing the contents of usage amount storage means in the embodiment.
FIG. 5 is a view showing the contents of a scheduled use amount storage unit in the embodiment.
[Explanation of symbols]
10A to 10C terminal 12 input means 14 control means (transmission means)
20 Server 23A Program storage unit (recording medium)
23B usage amount storage means 23C scheduled usage amount storage means 24 control means (writing means, determination means, disclosure means, optimum secured amount calculation means, cost calculation means)
30 Supply device 31 Compressor 32 Main pipeline 33A to 33C Branch pipeline 34A to 34C Supply valve 35A to 35C Flow meter (input means)
36A-36C Pressure gauge (input means)
A to D Corporate NW Information Network

Claims (6)

In a complex having a supplier having a gas raw material manufacturing apparatus and a plurality of consumers who use the gas raw material, the supplier boosts the gas raw material manufactured by the gas raw material manufacturing apparatus and supplies it to a plurality of consumers. a gas material supply system,
A server provided on the supplier side of the gaseous raw material, a terminal provided on each consumer side, and an information network for connecting the server and the terminal so as to be able to exchange information with each other,
The terminal, the amount of gas material that the consumed electric user is using, use predetermined quantity of the used pressure and now, an input means for inputting a use schedule pressure, used amount inputted by the input means , and means for transmitting working pressure and used for the predetermined amount, the scheduled use pressure to said server,
Wherein the server usage, the amount planned for beauty using Oyo working pressure, storage means for storing a use schedule pressure, used amount input from the terminal, using pressure and used for the predetermined amount, the scheduled use pressure A gas source supply system comprising: means for storing in the storage unit; and means for determining a supply amount and a supply pressure of the gas source based on information stored in the storage unit. In the gaseous raw material supply system according to claim 1,
The supplier side and each consumer side are connected by a main pipeline connected to the supplier side and a branch pipeline branched from the main pipeline to reach each consumer, and each branch pipe The line is provided with a flow meter and a pressure gauge for detecting the amount of gas raw material used and a working pressure, and the detection data from the flow meter and the pressure gauge are configured to be input from each terminal. Characteristic gas feed system. In the gaseous raw material supply system according to claim 2,
Each branch pipeline is provided with a supply valve,
The said server controls the opening degree of each said supply valve based on the signal from each said pressure gauge, The gaseous raw material supply system characterized by the above-mentioned. In the gaseous raw material supply system according to claim 2 or claim 3,
The said server has a calculation means to calculate the optimal supply amount of a gaseous raw material based on the information memorize | stored in the said memory | storage means, The gaseous raw material supply system characterized by the above-mentioned. In the gaseous raw material supply system in any one of Claims 1 thru | or 4,
The gas source supply system, wherein the server has a calculation means for calculating a cost caused by the use of the gas source. 6. A recording medium on which a program for controlling the gaseous material supply system according to claim 1 is recorded.

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