Production system of industrial byproduct ammonia water

Abstract

The utility model belongs to the technical field of petrochemical production equipment, and particularly relates to a production system of industrial byproduct ammonia water. The device comprises an ammonia refining tower, an ammonia water concentration mechanism, an ammonia gas and water mixing mechanism, an ammonia water cooler and an ammonia water storage mechanism, a communication pipeline and an ammonia water concentration mechanism are connected in parallel between the ammonia refining tower and the ammonia gas and water mixing mechanism; the ammonia gas and water mixing mechanism is connected with the ammonia water storage mechanism through the ammonia water cooler. Under the condition that normal operation of an existing equipment system is guaranteed, the risk of overflow caused by the fact that a 1000-square liquid ammonia spherical tank is adopted for storing liquid ammonia in an original production process is eliminated, and therefore potential safety hazards are eliminated. And the desalted water tank and the desalted water pump are used for providing water reactants for ammonia production and ammonia water. The ammonia water concentration mechanism is arranged, so that the problem of low concentration of an ammonia gas production line is solved, and the bottleneck of sales is solved. The arrangement of the ammonia water product tank meets the requirements of ammonia water storage and sales.

Description

Technical Field

[0001] The utility model belongs to the technical field of petrochemical production equipment, and in particular relates to a production system for industrial by-product ammonia water. Background Art

[0002] The 60 tons / hour sour water stripping unit of a certain refinery adopts a double-tower pressurized stripping process to produce qualified purified water. The original design of ammonia refining produces liquid ammonia products, and the products are stored in 1,000 cubic spherical tanks. Due to the high risk of spherical tank overflow, in view of the rectification requirements of local government departments to reduce the risk of liquid ammonia storage, there are two solutions: one is to clean the original 1,000 cubic meters of liquid ammonia, empty, purge and replace it, isolate it from the dangerous medium blind plate, and completely shut down; if the liquid ammonia storage tank is shut down, although the risk of spherical tank overflow is eliminated, it will cause losses to production. Second, the ammonia gas produced by the sour water stripping unit is produced into ammonia water with lower storage risk, which is safely stored after a scientific and reasonable treatment process to eliminate safety hazards. Utility Model Content

[0003] The utility model provides a production system of industrial by-product ammonia water, and its purpose is to provide a device that can convert ammonia gas produced by an acidic water stripping device into ammonia water with lower storage risk, store it safely after a scientific and reasonable treatment process, and eliminate potential safety hazards.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A production system of industrial by-product ammonia water comprises an ammonia refining tower, an ammonia water concentrating mechanism, an ammonia gas and water mixing mechanism, an ammonia water cooler and an ammonia water storage mechanism; a connecting pipeline and an ammonia water concentrating mechanism are connected in parallel between the ammonia refining tower and the ammonia gas and water mixing mechanism; the ammonia gas and water mixing mechanism is connected to the ammonia water storage mechanism through the ammonia water cooler.

[0006] The ammonia water concentration mechanism comprises an ammonia compressor and a liquid ammonia cooler; the ammonia compressor and the liquid ammonia cooler are connected in sequence from the ammonia refining tower to the ammonia gas and water mixing mechanism.

[0007] It also includes a control valve; the control valve is connected between the liquid ammonia cooler and the ammonia and water mixing mechanism.

[0008] The ammonia gas and water mixing mechanism comprises an ammonia gas and water mixer and a desalted water tank; the desalted water tank is connected to the ammonia refining tower through the ammonia gas and water mixer, a parallel connecting pipeline and an ammonia water concentrating mechanism in sequence.

[0009] It also includes a desalted water pump; the desalted water pump is connected between the ammonia and water mixer and the desalted water tank.

[0010] The ammonia water storage mechanism comprises an ammonia water intermediate tank and an ammonia water product tank; the ammonia water product tank is connected to the ammonia water intermediate tank via an ammonia water pump.

[0011] It also includes an ammonia water pump; the ammonia water pump is connected between the ammonia water intermediate tank and the ammonia water product tank.

[0012] Beneficial effects:

[0013] (1) The utility model is composed of an ammonia refining tower, an ammonia water concentration mechanism, an ammonia gas and water mixing mechanism, an ammonia water cooler and an ammonia water storage mechanism. While ensuring the normal operation of the existing equipment system, the utility model eliminates the risk of overflow caused by the use of a 1,000 cubic liquid ammonia spherical tank to store liquid ammonia in the original production process, thereby eliminating safety hazards.

[0014] (2) The utility model provides a desalted water tank and a desalted water pump to provide a safe water reactant for ammonia water in ammonia production.

[0015] (3) The setting of the ammonia water concentration mechanism in the utility model solves the problem of low ammonia concentration in the production line and solves the sales bottleneck.

[0016] (4) The provision of an ammonia product tank in the present invention meets the needs of ammonia storage and sales.

[0017] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be 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 paying creative work.

[0019] Figure 1 It is a schematic diagram of the composition of the utility model.

[0020] In the figure: 1. Ammonia refining tower; 2. Ammonia compressor; 3. Liquid ammonia cooler; 4. Ammonia gas and water mixer; 5. Desalted water tank; 6. Desalted water pump; 7. Ammonia water cooler; 8. Ammonia water intermediate tank; 9. Ammonia water pump; 10. Ammonia water product tank; 11. Control valve; 12. Connecting pipeline. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1:

[0023] according to Figure 1 The production system of an industrial by-product ammonia water is shown, comprising an ammonia refining tower 1, an ammonia water concentrating mechanism, an ammonia gas and water mixing mechanism, an ammonia water cooler 7 and an ammonia water storage mechanism; a connecting pipeline 12 and an ammonia water concentrating mechanism are connected in parallel between the ammonia refining tower 1 and the ammonia gas and water mixing mechanism; the ammonia gas and water mixing mechanism is connected to the ammonia water storage mechanism through the ammonia water cooler 7.

[0024] In actual use, after the crude ammonia gas from the 60 tons / hour acidic water stripping device enters the ammonia refining tower 1, one path enters the ammonia and water mixing mechanism through the ammonia water concentration mechanism, and the other path directly enters the ammonia and water mixing mechanism. The ammonia gas that enters the ammonia water concentration mechanism, on the one hand, provides cooling ammonia water for other systems in the refinery to ensure normal operation, and on the other hand, enters the ammonia and water mixing mechanism to provide ammonia gas for the production of ammonia water, solving the problem of low concentration of the ammonia production line, thereby solving the sales bottleneck. Desalted water is injected into the ammonia and water mixing mechanism from the external system, and after the desalted water and the incoming ammonia are mixed, they enter the ammonia storage mechanism through the ammonia water cooler 7 for storage and then sales.

[0025] The ammonia and water mixing mechanism provides water reactant for ammonia production and serves as a reaction unit for water and ammonia. The setting of the ammonia water concentration mechanism improves the problem of low concentration of the ammonia production line and solves the sales bottleneck.

[0026] Because the reaction of ammonia gas and water to produce ammonia water is an exothermic reaction, an ammonia water cooler 7 is provided to lower the temperature of the high-temperature ammonia water, reduce the risk of ammonia water volatilization, and meet the storage and transportation safety requirements.

[0027] The setting of the ammonia water storage mechanism meets the requirements of ammonia water storage and sales.

[0028] Embodiment 2:

[0029] according to Figure 1 The production system of an industrial by-product ammonia water shown is different from the first embodiment in that the ammonia water concentration mechanism includes an ammonia compressor 2 and a liquid ammonia cooler 3; the ammonia compressor 2 and the liquid ammonia cooler 3 are connected in sequence from the ammonia refining tower 1 to the ammonia gas and water mixing mechanism.

[0030] Furthermore, it also includes a control valve 11; the control valve 11 is connected between the liquid ammonia cooler 3 and the ammonia and water mixing mechanism.

[0031] In actual use, the ammonia coming out of the ammonia refining tower 1, after passing through the ammonia compressor 2 and the liquid ammonia cooler 3, can not only provide cooling ammonia water for other systems of the refinery to ensure normal operation, but also provide ammonia for the production of ammonia water after entering the ammonia and water mixing mechanism, thereby solving the problem of low concentration of the ammonia production line and thus solving the sales bottleneck.

[0032] The arrangement of the control valve 11 facilitates the control of the production process.

[0033] Embodiment three:

[0034] according to Figure 1 The production system of an industrial by-product ammonia water shown is different from the first embodiment in that: the ammonia gas and water mixing mechanism includes an ammonia gas and water mixer 4 and a desalted water tank 5; the desalted water tank 5 is connected to the ammonia refining tower 1 through the ammonia gas and water mixer 4, a parallel connecting pipeline 12 and an ammonia water concentrating mechanism in sequence.

[0035] Furthermore, it also includes a desalted water pump 6 ; the desalted water pump 6 is connected between the ammonia and water mixer 4 and the desalted water tank 5 .

[0036] In actual use, deionized water input from outside is injected into the ammonia and water mixer 4 through the deionized water tank 5 to provide water reactant for ammonia production. Ammonia and deionized water are fully mixed and reacted in the ammonia and water mixer 4 to produce ammonia water.

[0037] The provision of the desalted water pump 6 ensures the control of the speed at which the desalted water is injected from the desalted water tank 5 into the ammonia and water mixer 4 .

[0038] Embodiment 4:

[0039] according to Figure 1 The production system of an industrial by-product ammonia water is shown, which is different from the first embodiment in that the ammonia water storage mechanism includes an ammonia water intermediate tank 8 and an ammonia water product tank 10; the ammonia water product tank 10 is connected to the ammonia water intermediate tank 8 through an ammonia water pump 9.

[0040] Furthermore, it also includes an ammonia water pump 9 ; the ammonia water pump 9 is connected between the ammonia water intermediate tank 8 and the ammonia water product tank 10 .

[0041] In actual use, the reaction between ammonia gas and water to produce ammonia water is an exothermic reaction; therefore, the temperature of the ammonia water coming out of the ammonia gas and water mixer 4 is relatively high. After being cooled by the ammonia water cooler 7, it enters the ammonia water intermediate tank 8; the produced ammonia water is allowed to stand still and stabilize in the ammonia water intermediate tank 8, and then injected into the ammonia water product tank 10 to wait for sale.

[0042] Embodiment five:

[0043] according to Figure 1 The production system of an industrial by-product ammonia water shown in the figure is different from the embodiment 1 in that: the ammonia water concentration mechanism includes an ammonia compressor 2, a liquid ammonia cooler 3 and a control valve 11; the ammonia compressor 2 and the liquid ammonia cooler 3 are connected in sequence from the ammonia refining tower 1 to the ammonia gas and water mixing mechanism; the control valve 11 is connected between the liquid ammonia cooler 3 and the ammonia gas and water mixing mechanism; the ammonia gas and water mixing mechanism includes an ammonia gas and water mixer 4, a desalted water tank 5 and a desalted water pump 6, the desalted water tank 5 is connected to the ammonia refining tower 1 after passing through the ammonia gas and water mixer 4, a parallel connecting pipeline 12 and the ammonia water concentration mechanism in sequence, and the desalted water pump 6 is connected between the ammonia gas and water mixer 4 and the desalted water tank 5; the ammonia water storage mechanism includes an ammonia water intermediate tank 8, an ammonia water product tank 10 and an ammonia water pump 9; the ammonia water product tank 10 is connected to the ammonia water intermediate tank 8 through the ammonia water pump 9, and the ammonia water pump 9 is connected between the ammonia water intermediate tank 8 and the ammonia water product tank 10.

[0044] In actual use, after the crude ammonia gas from the 60 t / h acidic water stripping device enters the ammonia refining tower 1, one path enters the ammonia gas and water mixer 4 through the ammonia compressor 2, the liquid ammonia cooler 3 and the control valve 11, and the other path directly enters the ammonia gas and water mixer 4 through the connecting pipeline 12. The ammonia gas that enters the ammonia water concentration mechanism, on the one hand, provides cooling ammonia water for other systems of the refinery to ensure normal operation, and on the other hand, enters the ammonia gas and water mixing mechanism to provide ammonia gas for the production of ammonia water, solving the problem of low concentration of the ammonia production line, thereby solving the sales bottleneck.

[0045] The desalted water injected from the external system into the ammonia and water mixing mechanism first enters the desalted water tank 5, and then is injected into the ammonia and water mixer 4 through the desalted water pump 6. After the ammonia and desalted water are mixed and reacted in the ammonia and water mixer 4, they are cooled by the ammonia cooler 7, and then enter the ammonia intermediate tank 8 to stand and stabilize, and then injected into the ammonia product tank 10 to wait for external sale.

[0046] The utility model can convert ammonia gas produced by an acidic water stripping device into ammonia water with lower storage risk, and store it safely after a scientific and reasonable treatment process, thereby eliminating potential safety hazards.

[0047] In the absence of conflicts, technicians in this field can combine the relevant technical features in the above examples according to actual conditions to achieve corresponding technical effects. The specific combinations are not described here one by one.

[0048] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0049] In addition, the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0050] The above is only a preferred embodiment of the utility model. The utility model will not be limited to these embodiments shown in this article, but should conform to the widest range consistent with the principles and novel features disclosed in this article. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model still fall within the scope of the technical solution of the utility model.

Claims

1. A production system for industrial by-product ammonia water, characterized in that: The invention comprises an ammonia refining tower (1), an ammonia water concentrating mechanism, an ammonia gas and water mixing mechanism, an ammonia water cooler (7) and an ammonia water storage mechanism; a connecting pipeline (12) and an ammonia water concentrating mechanism are connected in parallel between the ammonia refining tower (1) and the ammonia gas and water mixing mechanism; the ammonia gas and water mixing mechanism is connected to the ammonia water storage mechanism via the ammonia water cooler (7).

2. The production system of industrial by-product ammonia water as claimed in claim 1, characterized in that: The ammonia water concentration mechanism comprises an ammonia compressor (2) and a liquid ammonia cooler (3); the ammonia compressor (2) and the liquid ammonia cooler (3) are connected in sequence from the ammonia refining tower (1) to the ammonia gas and water mixing mechanism.

3. A production system for industrial by-product ammonia water as claimed in claim 2, characterized in that: It also includes a control valve (11); the control valve (11) is connected between the liquid ammonia cooler (3) and the ammonia and water mixing mechanism.

4. The production system of industrial by-product ammonia water as claimed in claim 1, characterized in that: The ammonia gas and water mixing mechanism comprises an ammonia gas and water mixer (4) and a desalted water tank (5); the desalted water tank (5) is connected to the ammonia refining tower (1) via the ammonia gas and water mixer (4), a parallel connecting pipeline (12) and an ammonia water concentrating mechanism in sequence.

5. The production system of industrial by-product ammonia water as claimed in claim 4, characterized in that: It also includes a desalted water pump (6); the desalted water pump (6) is connected between the ammonia and water mixer (4) and the desalted water tank (5).

6. The production system of industrial by-product ammonia water as claimed in claim 1, characterized in that: The ammonia water storage mechanism comprises an ammonia water intermediate tank (8) and an ammonia water product tank (10); the ammonia water product tank (10) is connected to the ammonia water intermediate tank (8) via an ammonia water pump (9).

7. The production system of industrial by-product ammonia water as claimed in claim 6, characterized in that: It also includes an ammonia water pump (9); the ammonia water pump (9) is connected between the ammonia water intermediate tank (8) and the ammonia water product tank (10).

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