Gas ammonia supply system capable of being flexibly switched

Abstract

In order to overcome the defects in the prior art, the utility model provides a gas ammonia supply system capable of being flexibly switched, which comprises a liquid ammonia-gas ammonia conveying system and a gas ammonia conveying system, and the liquid ammonia-gas ammonia conveying system and the gas ammonia conveying system independently or jointly provide gas ammonia for a subsequent system. The liquid ammonia-gaseous ammonia conveying system comprises a liquid ammonia supply subsystem and a liquid ammonia vaporizer. The liquid ammonia supply subsystem provides liquid ammonia for the liquid ammonia vaporizer, and the liquid ammonia vaporizer vaporizes the liquid ammonia into gas ammonia and outputs the gas ammonia to the gas ammonia header pipe. The liquid ammonia supply subsystem comprises at least two of a bottle type liquid ammonia supply system, a liquid ammonia pipe network supply system and a liquid ammonia storage tank supply system. And the gas ammonia conveying system outputs gas ammonia to a gas ammonia main pipe through a compressor. According to the gas ammonia supply system, integration of multiple gas ammonia supply modes is organically realized, so that a user can switch among the multiple gas ammonia supply modes according to different actual conditions, and stable supply of the gas ammonia is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial production, and in particular to a flexibly switchable gas ammonia supply system. Background Art

[0002] With the rapid development of industrialization, boiler flue gas emissions are becoming increasingly serious, among which nitrogen oxides (NOx) are one of the main air pollutants. Flue gas denitrification technology has attracted widespread attention as an effective means to reduce NOx emissions. Ammonia, as a commonly used denitrification reducing agent, has the advantages of fast reaction speed and high denitrification efficiency.

[0003] However, existing gas ammonia supply technologies often have problems such as fixed process flow, single form, difficult adjustment operation, and high energy consumption. These problems limit the flexibility and economic benefits of gas ammonia production, making it difficult for companies to quickly adjust production strategies when facing the commissioning of equipment. Utility Model Content

[0004] In order to solve the deficiencies in the prior art, the utility model provides a flexibly switchable gas ammonia supply system, including a liquid ammonia-gas ammonia delivery system and a gas ammonia delivery system, and the liquid ammonia-gas ammonia delivery system and the gas ammonia delivery system provide gas ammonia to subsequent systems individually or jointly.

[0005] The liquid ammonia-gas ammonia delivery system includes: a liquid ammonia supply subsystem and a liquid ammonia vaporizer. The liquid ammonia supply subsystem provides liquid ammonia to the liquid ammonia vaporizer, and the liquid ammonia vaporizer vaporizes the liquid ammonia into gas ammonia and outputs the gas ammonia to the gas ammonia main pipe. The liquid ammonia supply subsystem includes: at least two of a bottle-type liquid ammonia supply system, a liquid ammonia pipeline supply system, and a liquid ammonia storage tank supply system.

[0006] The gas ammonia delivery system outputs gas ammonia to the gas ammonia main pipe through a compressor.

[0007] Furthermore, the bottle-type liquid ammonia supply system comprises: a plurality of liquid ammonia steel cylinders. The liquid ammonia steel cylinders are connected to the liquid ammonia input end of the liquid ammonia vaporizer through a first liquid ammonia delivery pipeline. The first liquid ammonia delivery pipeline is provided with a first switch valve at the connection with the liquid ammonia steel cylinder.

[0008] Furthermore, the bottle-type liquid ammonia supply system further comprises: a liquid ammonia steel cylinder base. The liquid ammonia steel cylinder base is provided with a groove surface matching the liquid ammonia steel cylinder.

[0009] Furthermore, the bottle-type liquid ammonia supply system also includes: an electronic weighing device for weighing the liquid ammonia cylinder.

[0010] Furthermore, the liquid ammonia pipeline network supply system includes: a second liquid ammonia delivery pipeline connecting the external liquid ammonia pipeline network and the liquid ammonia input end of the liquid ammonia vaporizer. A second switch valve is arranged on the second liquid ammonia delivery pipeline.

[0011] Furthermore, the liquid ammonia storage tank supply system includes: a third liquid ammonia delivery pipeline connecting the external liquid ammonia pipeline network and the input end of the liquid ammonia storage tank, and a third switch valve is provided on the third liquid ammonia delivery pipeline. The output end of the liquid ammonia storage tank is connected to the liquid ammonia input end of the liquid ammonia vaporizer through a fourth pipeline, and at least one liquid ammonia pressure-boosting pump is provided on the fourth pipeline. A fifth switch valve is provided on the fourth pipeline between the liquid ammonia pressure-boosting pump and the liquid ammonia input end of the liquid ammonia vaporizer.

[0012] Furthermore, the liquid ammonia vaporizer is heated by a heating assembly, and a flow control valve is provided on the gas ammonia output pipe.

[0013] The utility model has at least the following beneficial effects:

[0014] The utility model organically realizes the integration of multiple gas ammonia supply modes, so that the user can switch between the multiple gas ammonia supply modes according to different actual conditions, thereby ensuring the stable supply of gas ammonia. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the flexibly switchable gas ammonia supply system of the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the lateral structure of a flexibly switchable gas ammonia supply system is shown;

[0017] Figure 3 for Figure 1 A schematic diagram of the rear structure of a flexibly switchable ammonia supply system is shown. DETAILED DESCRIPTION

[0018] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0019] Please note that the terms "above", "below", "left", "right", "top", "top", "bottom", "bottom", etc. used in the present invention to describe the positional relationship do not represent the absolute positional relationship between the modules / components / assemblies / components / parts, but the relative positional relationship between the modules / components / assemblies / components / parts.

[0020] The utility model exemplarily provides a flexibly switchable gas ammonia supply system, such as Figure 1-3As shown, it includes a liquid ammonia-gas ammonia delivery system and a gas ammonia delivery system arranged on a target working surface 1, and the liquid ammonia-gas ammonia delivery system and the gas ammonia delivery system provide gas ammonia to subsequent systems separately or together. The target working surface 1 can be a factory floor, a certain support surface of a three-dimensional production system, or other support surfaces or support systems for placing the various systems described in the utility model as needed.

[0021] The liquid ammonia-gas ammonia delivery system includes: a liquid ammonia supply subsystem and a liquid ammonia vaporizer 8. The liquid ammonia supply subsystem provides liquid ammonia to the liquid ammonia vaporizer 8, and the liquid ammonia vaporizer 8 vaporizes the liquid ammonia into gas ammonia and outputs the gas ammonia to the gas ammonia main pipe. The liquid ammonia supply subsystem includes: at least two of a bottle-type liquid ammonia supply system, a liquid ammonia pipeline supply system, and a liquid ammonia storage tank supply system.

[0022] The gas ammonia delivery system outputs gas ammonia to the gas ammonia main pipe through the compressor 3.

[0023] Compared with the existing ammonia gas supply technology, which has the problems of fixed process flow, single form, difficult adjustment operation, high energy consumption, etc., the utility model organically realizes the integration of multiple ammonia gas supply methods, so that users can switch between multiple ammonia gas supply methods according to different actual conditions, thereby ensuring a stable supply of ammonia gas.

[0024] The utility model exemplarily provides a bottle-type liquid ammonia supply system, such as Figure 1-3 As shown, it includes: a plurality of liquid ammonia cylinders 7. The liquid ammonia cylinders 7 are connected to the liquid ammonia input end of the liquid ammonia vaporizer 8 through a first liquid ammonia delivery pipeline. The first liquid ammonia delivery pipeline is provided with a first switch valve 16 at the connection with the liquid ammonia cylinder 7.

[0025] When the bottle-type liquid ammonia supply system is needed to supply liquid ammonia to the liquid ammonia vaporizer 8, at least one of the several liquid ammonia cylinders 7 can be selected, and the first switch valve 16 connected to the selected liquid ammonia cylinder 7 can be opened, so that the liquid ammonia in the selected liquid ammonia cylinder 7 is transported to the liquid ammonia input end of the liquid ammonia vaporizer 8 along the first liquid ammonia delivery pipeline under the action of the internal pressure of the liquid ammonia cylinder 7, thereby supplying liquid ammonia to the liquid ammonia vaporizer 8.

[0026] The utility model exemplarily provides a bottle-type liquid ammonia supply system, such as Figure 1-3 As shown, the above-mentioned bottle-type liquid ammonia supply system further includes: a liquid ammonia steel cylinder base 4. The liquid ammonia steel cylinder base 4 is provided with a groove surface matching the liquid ammonia steel cylinder 7.

[0027] When in use, the liquid ammonia cylinder 7 can be placed in the groove surface of the liquid ammonia cylinder base 4 to play a role in limiting and fixing.

[0028] The utility model exemplarily provides a bottle-type liquid ammonia supply system, which further comprises, on the basis of the above-mentioned bottle-type liquid ammonia supply system: an electronic weighing device for weighing the liquid ammonia cylinder 7. At this time, the real-time weight of the liquid ammonia cylinder 7 can be obtained through the electronic weighing device.

[0029] The utility model exemplarily provides a liquid ammonia pipeline supply system, such as Figure 1-3 As shown, it includes: a second liquid ammonia delivery pipeline connecting the external liquid ammonia pipeline network and the liquid ammonia input end of the liquid ammonia vaporizer 8. A second switch valve 17 is arranged on the second liquid ammonia delivery pipeline.

[0030] When the liquid ammonia network supply system is required to supply liquid ammonia to the liquid ammonia vaporizer 8, the second switch valve 17 on the second liquid ammonia delivery pipeline is opened to transport the liquid ammonia in the external liquid ammonia network to the liquid ammonia input end of the liquid ammonia vaporizer 8 through the second liquid ammonia delivery pipeline.

[0031] The utility model exemplarily provides a liquid ammonia storage tank supply system, such as Figure 1-3 As shown, it includes: a third liquid ammonia delivery pipeline connecting the external liquid ammonia pipeline network and the input end of the liquid ammonia storage tank 2, and a third switch valve 18 is provided on the third liquid ammonia delivery pipeline. The output end of the liquid ammonia storage tank 2 is connected to the liquid ammonia input end of the liquid ammonia vaporizer 8 through a fourth pipeline, and the first liquid ammonia boosting pump 5 and the second liquid ammonia boosting pump 6 are connected to the fourth pipeline through two pipelines. A fifth switch valve 19 is provided on the fourth pipeline between the liquid ammonia boosting pump and the liquid ammonia input end of the liquid ammonia vaporizer 8.

[0032] When the liquid ammonia storage tank supply system is required to supply liquid ammonia to the liquid ammonia vaporizer 8, the fifth switch valve 19 on the fourth liquid ammonia delivery pipeline is opened, and the liquid ammonia stored in the liquid ammonia storage tank 2 can be delivered to the liquid ammonia input end of the liquid ammonia vaporizer 8 through the fourth liquid ammonia delivery pipeline. The liquid ammonia booster pump can supplement the pressure of the liquid ammonia provided by the liquid ammonia storage tank 2 when the pressure is insufficient.

[0033] When the liquid ammonia reserves in the liquid ammonia storage tank 2 are insufficient, the third switch valve 18 on the third liquid ammonia delivery pipeline can be opened as needed, and liquid ammonia from the external liquid ammonia pipeline network can be used to output liquid ammonia to the liquid ammonia storage tank 2 to replenish the liquid ammonia reserves in the liquid ammonia storage tank 2.

[0034] The utility model exemplarily provides a liquid ammonia vaporizer 8, which is heated by a heating assembly 9 and is provided with a flow control valve 10 on the gas ammonia output pipe. The flow control valve 10 is used to control the flow of gas ammonia output from the gas ammonia output pipe to the boiler.

[0035] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A flexibly switchable gas ammonia supply system, characterized in that: It includes a liquid ammonia-gas ammonia delivery system and a gas ammonia delivery system, and the liquid ammonia-gas ammonia delivery system and the gas ammonia delivery system provide gas ammonia to subsequent systems individually or together; The liquid ammonia-gas ammonia delivery system comprises: a liquid ammonia supply subsystem and a liquid ammonia vaporizer (8); the liquid ammonia supply subsystem supplies liquid ammonia to the liquid ammonia vaporizer (8), and the liquid ammonia vaporizer (8) vaporizes the liquid ammonia into gas ammonia and outputs the gas ammonia to the gas ammonia main pipe; the liquid ammonia supply subsystem comprises: at least two of a bottle-type liquid ammonia supply system, a liquid ammonia pipeline supply system, and a liquid ammonia storage tank supply system; The gas ammonia delivery system outputs gas ammonia to the gas ammonia main pipe via a compressor (3).

2. The flexibly switchable gas ammonia supply system according to claim 1, characterized in that: The bottle-type liquid ammonia supply system comprises: a plurality of liquid ammonia steel cylinders (7); the liquid ammonia steel cylinders (7) are connected to the liquid ammonia input end of the liquid ammonia vaporizer (8) through a first liquid ammonia delivery pipeline; and a first switch valve (16) is provided at the connection between the first liquid ammonia delivery pipeline and the liquid ammonia steel cylinders (7).

3. The flexibly switchable gas ammonia supply system according to claim 2, characterized in that: The bottle-type liquid ammonia supply system further comprises: a liquid ammonia steel cylinder base (4); the liquid ammonia steel cylinder base (4) is provided with a groove surface matching the liquid ammonia steel cylinder (7).

4. The flexibly switchable gas ammonia supply system according to any one of claims 2 or 3, characterized in that: The bottle-type liquid ammonia supply system further comprises: an electronic weighing device for weighing the liquid ammonia cylinder (7).

5. The flexibly switchable gas ammonia supply system according to claim 1, characterized in that: The liquid ammonia pipeline network supply system comprises: a second liquid ammonia delivery pipeline connected to an external liquid ammonia pipeline network and a liquid ammonia input end of a liquid ammonia vaporizer (8); a second switch valve (17) is provided on the second liquid ammonia delivery pipeline.

6. The flexibly switchable gas ammonia supply system according to claim 1, characterized in that: The liquid ammonia storage tank supply system comprises: a third liquid ammonia delivery pipeline connected to an external liquid ammonia pipeline network and an input end of a liquid ammonia storage tank (2), a third switch valve (18) being provided on the third liquid ammonia delivery pipeline; an output end of the liquid ammonia storage tank (2) being connected to a liquid ammonia input end of a liquid ammonia vaporizer (8) via a fourth pipeline, at least one liquid ammonia pressure-raising pump being provided on the fourth pipeline; and a fifth switch valve (19) being provided on the fourth pipeline between the liquid ammonia pressure-raising pump and the liquid ammonia input end of the liquid ammonia vaporizer (8).

7. The flexibly switchable gas ammonia supply system according to claim 1, characterized in that: The liquid ammonia vaporizer (8) is heated by a heating assembly (9), and a flow control valve (10) is provided on the gas ammonia output pipe.

Images