Refining production gas pipe network fuel supplementing device

Abstract

The utility model relates to the technical field of refining production, in particular to a refining production fuel gas pipe network fuel supplementing device which comprises an n-butane storage tank, an LPG storage tank, a propane storage tank, a valve set, a pump A, a pump B, a pump C and a gasification pry, an inlet of the pump B is connected with the LPG storage tank through a first pipeline, and the n-butane storage tank is connected with the first pipeline through a second pipeline. The valve group is arranged on the second pipeline, an inlet of the pump A is connected with the second pipeline through a tenth pipeline, outlets of the pump A and the pump B are connected with an inlet of the gasification pry through a third pipeline, an outlet of the gasification pry is connected with a gas pipe network through a fourth pipeline, the propane storage tank is connected with an inlet of the pump C through a fifth pipeline, and an outlet of the pump C is connected with the third pipeline through a sixth pipeline. During refining production, emergency fuel gas can be provided for a fuel gas pipe network under the condition that fuel gas in the pipe network is insufficient, and normal production is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of refining production, in particular to a fuel supplement device for a refining production gas pipeline network. Background Art

[0002] The heat source used in refining production is generally heavy oil, but the combustion of heavy oil brings more serious environmental problems. With the improvement of environmental protection requirements, natural gas is gradually used as a combustion source in production. Natural gas has low cost and high quality, and its thermal efficiency is much higher than that of burning heavy oil. This alone can save a lot of energy, and the energy loss of natural gas transportation is less than that of heavy oil, electricity, etc., thus saving energy. When natural gas is used, gas networking is required. The network after networking needs to be connected to the gas source. The existing gas source is generally a self-built gas station. Usually during production, due to insufficient gas pressure in the pipeline or the reduction of gas volume in the gas tank, the pipeline network cannot be replenished with sufficient gas in time, affecting the operation of power equipment (such as power boilers). Utility Model Content

[0003] In view of the technical problem of untimely gas source replenishment in the prior art, the utility model provides a fuel replenishing device for a refining production gas pipeline network, which can provide emergency gas to the gas pipeline network when there is insufficient gas in the pipeline network to ensure normal production.

[0004] The utility model provides a fuel replenishing device for a refining and chemical production gas pipeline network, comprising a normal butane storage tank, an LPG storage tank, a propane storage tank, a valve group, a pump A, a pump B, a pump C, and a gasification skid, wherein the inlet of the pump B is connected to the LPG storage tank through a first pipeline, the normal butane storage tank is connected to the first pipeline through a second pipeline, the valve group is arranged on the second pipeline, the inlet of the pump A is connected to the second pipeline through a tenth pipeline, the outlets of the pump A and the pump B are both connected to the inlet of the gasification skid through a third pipeline, the outlet of the gasification skid is connected to the gas pipeline network through a fourth pipeline, the propane storage tank is connected to the inlet of the pump C through a fifth pipeline, and the outlet of the pump C is connected to the third pipeline through a sixth pipeline.

[0005] Furthermore, the utility model also includes a discharge tank truck, which is connected to the n-butane storage tank via a seventh pipeline. The seventh pipeline is provided with a discharge compressor for the purpose of discharging the n-butane storage tank and replenishing the gas source.

[0006] Furthermore, the unloading tank truck is also connected to the valve group through the eighth pipeline, which is conducive to recovering the remaining n-butane in the n-butane storage tank.

[0007] Furthermore, the pump B is a substandard liquefied gas recycling pump, and a ninth pipeline is connected to the outlet of the pump B, the purpose of which is to guide the substandard LPG (liquefied petroleum gas) out for recycling.

[0008] Furthermore, there are two pumps C, which can ensure that when one pump is damaged, the other pump can work normally.

[0009] Furthermore, according to GB / T 1047-2005, the seventh pipeline and the sixth pipeline are DN50 pipelines, and the second pipeline and the eighth pipeline are DN80 pipelines.

[0010] The beneficial effects of the utility model are:

[0011] (1) The utility model uses n-butane as the main fuel supplement source, and through the newly added pipeline, pumps A and B are connected to the gasification skid, and the gasified n-butane gas is incorporated into the gas pipeline network of the whole plant, mainly used as power boiler fuel, and supplements the gas source for the gas pipeline network;

[0012] (2) The utility model adds a device for supplying LPG as a backup. When the n-butane is not unloaded in time and cannot be supplied, it starts to pump into the gasification skid to assist in replenishing the gas source;

[0013] (3) The propane storage tank of the utility model stores propane, which is pumped into the gasification skid by the pump C. When the usage of n-butane and LPG is insufficient, the propane is basically not gasified by the gasification skid, which speeds up the gas transmission speed. At the same time, the problem of liquid in the fuel pipeline network is significantly alleviated. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a schematic structural diagram of a specific implementation method of the utility model.

[0016] In the figure, 1-the seventh pipeline, 2-n-butane storage tank, 3-unloading compressor, 4-unloading tank truck, 5-the second pipeline, 6-valve group, 7-the eighth pipeline, 8-the first pipeline, 9-the fifth pipeline, 10-pump A, 11-pump B, 12-pump C, 13-the sixth pipeline, 14-the third pipeline, 15-gasification skid, 16-the fourth pipeline, 17-the ninth pipeline, 18-LPG storage tank, 19-propane storage tank, 20-the tenth pipeline. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0018] Example 1

[0019] like Figure 1 As shown, the fuel replenishing device for the refining production gas pipeline network described in the utility model includes a normal butane storage tank 2, an LPG storage tank 18, a propane storage tank 19, a valve group 6, a pump A10, a pump B11, a pump C12, and a gasification skid 15. The inlet of the pump B11 is connected to the LPG storage tank 18 through a first pipeline 8, the normal butane storage tank 2 is connected to the first pipeline 8 through a second pipeline 5, the valve group 6 is arranged on the second pipeline 5, the inlet of the pump A10 is connected to the second pipeline 5 through a tenth pipeline 20, the outlets of the pump A10 and the pump B11 are both connected to the inlet of the gasification skid 15 through a third pipeline 14, the outlet of the gasification skid 15 is connected to the gas pipeline network through a fourth pipeline 16, the propane storage tank 19 is connected to the inlet of the pump C12 through a fifth pipeline 9, and the outlet of the pump C12 is connected to the third pipeline 14 through a sixth pipeline 13. The unloading tank truck 4 is also included. The unloading tank truck 4 is connected to the n-butane storage tank 2 through the seventh pipeline 1. The seventh pipeline 1 is provided with a unloading compressor 3. The unloading tank truck 4 is also connected to the valve group 6 through the eighth pipeline 7.

[0020] The pump B11 is a failed liquefied gas recycling pump, and the outlet of the pump B11 is also connected to a ninth pipeline 17. There are two pumps C12.

[0021] With reference to GB / T 1047-2005, the seventh pipeline 1 and the sixth pipeline 13 are DN50 pipelines, and the second pipeline 5 and the eighth pipeline 7 are DN80 pipelines.

[0022] According to common knowledge in the field, corresponding valves are provided on each connecting pipe described in the present invention to facilitate the control of material transportation in the pipe. The valve setting method and quantity can be conventionally selected by technicians in the field according to the contents recorded in this application, and the present invention does not elaborate on them.

[0023] like Figure 1 As shown, the n-butane storage tank 2 of the utility model stores n-butane, which can be gasified in the gasification skid 15 through the second pipeline 5 and the third pipeline 14 under the action of the pump A10 and then merged into the gas pipeline network.

[0024] The utility model stores LPG in the LPG storage tank 18, which can be gasified in the gasification skid 15 through the second pipeline 5, the pump A10 and the third pipeline 14 under the action of the pump A10, and then merged into the gas pipeline network.

[0025] The propane storage tank 19 of the utility model stores propane, which can enter the gasification skid 15 through the fifth pipeline 9 and the third pipeline 14 under the action of the pump C12 to be gasified and merged into the gas pipeline network.

[0026] Although the present invention is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, a person skilled in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions shall be within the scope of the present invention. Any person skilled in the art who is familiar with the present technical field may easily think of changes or substitutions within the technical scope disclosed in the present invention, and these shall be within the scope of protection of the present invention.

Claims

1. A fuel replenishing device for a refinery gas pipeline network, characterized in that: It includes a n-butane storage tank, an LPG storage tank, a propane storage tank, a valve group, a pump A, a pump B, a pump C, and a gasification skid. The inlet of pump B is connected to the LPG storage tank through a first pipeline, the n-butane storage tank is connected to the first pipeline through a second pipeline, the valve group is arranged on the second pipeline, the inlet of pump A is connected to the second pipeline through a tenth pipeline, the outlets of pump A and pump B are both connected to the inlet of the gasification skid through a third pipeline, the outlet of the gasification skid is connected to the gas pipeline network through a fourth pipeline, the propane storage tank is connected to the inlet of pump C through a fifth pipeline, and the outlet of pump C is connected to the third pipeline through a sixth pipeline.

2. The fuel replenishing device for the refining gas pipeline network according to claim 1, characterized in that: The unloading tank truck is also included. The unloading tank truck is connected to the n-butane storage tank through a seventh pipeline, and a unloading compressor is arranged on the seventh pipeline.

3. The fuel replenishing device for the refining gas pipeline network according to claim 2, characterized in that: The unloading tank truck is also connected to the valve group through the eighth pipeline.

4. The fuel replenishing device for the refinery gas pipeline network according to claim 1, characterized in that: Pump B is a substandard liquefied gas recycling pump, and the outlet of pump B is also connected to a ninth pipeline.

5. The fuel replenishing device for the refinery gas pipeline network according to claim 1, characterized in that: The number of pumps C is two.

6. The fuel replenishing device for the refinery gas pipeline network according to claim 2, characterized in that: The seventh pipeline and the sixth pipeline are DN50 pipelines, and the second pipeline is a DN80 pipeline.

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