New energy station energy storage and delivery system

Abstract

The utility model relates to a new energy station energy storage and delivery system, which comprises an electric energy controller and an electrolytic cell, the electric energy controller is connected with a photovoltaic panel, a wind driven generator and a power grid, a power transmission line is connected between the electric energy controller and the electrolytic cell, and the electrolytic cell is connected with a hydrogen user connecting pipeline and a hydrogen storage pipeline. The hydrogen user connecting pipeline is connected with a hydrogen user, the hydrogen storage pipeline is sequentially provided with a first-stage hydrogen compressor, a first-stage hydrogen cooler, a second-stage hydrogen compressor, a second-stage hydrogen cooler and a high-pressure heat insulation hydrogen storage tank, the electrolytic bath is connected with an oxygen user connecting pipeline and an oxygen storage pipeline, and the oxygen user connecting pipeline is connected with an oxygen user. A first-stage oxygen compressor, a first-stage oxygen cooler, a second-stage oxygen compressor, a second-stage oxygen cooler and a high-pressure heat-insulating oxygen storage tank are sequentially arranged on the oxygen storage pipeline. The device provided by the utility model is simple in composition, and can flexibly distribute electric energy, store energy and send out according to the conditions of wind power, photovoltaic station load and electrical load of a power grid.

Description

Technical Field

[0001] The utility model relates to the technical field of renewable energy power generation, and in particular to a new energy station energy storage and transmission system. Background Art

[0002] As the installed capacity of new energy sources such as wind power and photovoltaic power continues to increase, and due to the uncertainty of wind and light, the fluctuation of new energy power generation load has a great impact on the stability and security of the power grid. The power grid's ability to absorb new energy power generation is insufficient, resulting in frequent abandonment of wind and light. In order to improve the utilization rate of wind and light, some wind power and photovoltaic stations are equipped with energy storage systems, which mainly use assembled battery packs for energy storage. Due to the high cost of assembling battery packs, the proportion of battery packs in new energy stations is not high. Most wind power and photovoltaic stations are not equipped with any energy storage systems. During the low period of power consumption in the power grid, wind and light abandonment still occur from time to time.

[0003] Therefore, it is necessary to improve the energy storage technology of new energy stations, reduce the energy storage cost of new energy stations, and increase the energy storage configuration ratio of new energy stations. Utility Model Content

[0004] The utility model aims to solve the deficiencies of the prior art and provide a new energy station energy storage and transmission system.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] A new energy station energy storage and delivery system comprises an electric energy controller and an electrolyzer, wherein the electric energy controller is connected to a photovoltaic panel via a photovoltaic transmission line, the electric energy controller is connected to a wind turbine via a wind power transmission line, a transmission line is connected between the electric energy controller and the electrolyzer, the electric energy controller is connected to a power grid, the electrolyzer is respectively connected to a water inlet pipeline, a hydrogen output pipeline and an oxygen output pipeline, the hydrogen output pipeline is respectively connected to a hydrogen user connection pipeline and a hydrogen storage pipeline, the hydrogen user connection pipeline is connected to a hydrogen user, a primary hydrogen compressor, a primary hydrogen cooler, a secondary hydrogen compressor, a secondary hydrogen cooler and a high-pressure insulated hydrogen storage tank are sequentially arranged on the hydrogen storage pipeline, the oxygen output pipeline is respectively connected to an oxygen user connection pipeline and an oxygen storage pipeline, the oxygen user connection pipeline is connected to an oxygen user, and a primary oxygen compressor, a primary oxygen cooler, a secondary oxygen compressor, a secondary oxygen cooler and a high-pressure insulated oxygen storage tank are sequentially arranged on the oxygen storage pipeline.

[0007] The hydrogen output pipeline is provided with a hydrogen shut-off valve at the electrolyzer outlet, the oxygen output pipeline is provided with an oxygen shut-off valve at the electrolyzer outlet, and the water inlet pipeline is provided with an electrolyzer water inlet valve.

[0008] A hydrogen distribution valve is provided on the hydrogen user connection pipeline.

[0009] A hydrogen compression valve is provided on the hydrogen storage pipeline.

[0010] An oxygen distribution valve is provided on the oxygen user connection pipeline.

[0011] An oxygen compression valve is provided on the oxygen storage pipeline.

[0012] The primary hydrogen cooler is connected with a primary hydrogen cooler water inlet pipe and a primary hydrogen cooler water outlet pipe. The primary hydrogen cooler water inlet pipe is provided with a primary hydrogen cooler water inlet valve, and the primary hydrogen cooler water outlet pipe is provided with a primary hydrogen cooler water outlet valve.

[0013] The secondary hydrogen cooler is connected with a secondary hydrogen cooler refrigerant inlet pipe and a secondary hydrogen cooler refrigerant discharge pipe. The secondary hydrogen cooler refrigerant inlet pipe is provided with a secondary hydrogen cooler refrigerant inlet valve, and the secondary hydrogen cooler refrigerant discharge pipe is provided with a secondary hydrogen cooler refrigerant outlet valve.

[0014] The primary oxygen cooler is connected with a primary oxygen cooler water inlet pipe and a primary oxygen cooler water outlet pipe. The primary oxygen cooler water inlet pipe is provided with a primary oxygen cooler water inlet valve, and the primary oxygen cooler water outlet pipe is provided with a primary oxygen cooler water outlet valve.

[0015] The secondary oxygen cooler is connected with a secondary oxygen cooler refrigerant inlet pipe and a secondary oxygen cooler refrigerant discharge pipe. The secondary oxygen cooler refrigerant inlet pipe is provided with a secondary oxygen cooler refrigerant inlet valve, and the secondary oxygen cooler refrigerant discharge pipe is provided with a secondary oxygen cooler refrigerant outlet valve.

[0016] The beneficial effects of the utility model are as follows: the equipment of the utility model has a simple composition and is flexible in switching, and can flexibly distribute electric energy according to the load of wind power, photovoltaic stations and power grid load conditions. It can be used to directly provide electric energy to the grid, and can also be used to produce hydrogen and oxygen for energy storage and external transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] In the figure: 1-hydrogen user; 2-hydrogen distribution valve; 3-hydrogen compression valve; 4-first-stage hydrogen compressor; 5-first-stage hydrogen cooler water inlet valve; 6-first-stage hydrogen cooler; 7-second-stage hydrogen compressor; 8-second-stage hydrogen cooler; 9-high-pressure insulated hydrogen storage tank; 10-second-stage hydrogen cooler refrigerant inlet valve; 11-second-stage hydrogen cooler refrigerant outlet valve; 12-first-stage hydrogen cooler water outlet valve; 13-electrolyzer outlet hydrogen shut-off valve; 14-photovoltaic panel; 15-photovoltaic transmission line; 16-electric energy controller; 17-transmission line; 18-electrolyzer; 19-electrolyzer water inlet valve; 20-wind turbine; 21-wind power transmission line; 22-oxygen user; 23-oxygen distribution valve; 24-electrolyzer outlet oxygen shut-off valve; 25-oxygen compression valve; 26-first-stage oxygen compressor; 27-first-stage oxygen cooler water inlet valve; 28-first-stage oxygen cooler; 29-second-stage oxygen compressor; 30-second-stage oxygen cooler; 31-high-pressure insulated oxygen storage tank; 32-second-stage oxygen cooler refrigerant inlet valve; 33-second-stage oxygen cooler refrigerant outlet valve; 34-first-stage oxygen cooler water outlet valve; 35-power grid;

[0019] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0020] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0021] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0024] A new energy station energy storage and delivery system, such as Figure 1 As shown, it includes an electric energy controller 16 and an electrolyzer 18. The electric energy controller 16 is connected to a photovoltaic panel 14 through a photovoltaic transmission line 15. The electric energy controller 16 is connected to a wind turbine 20 through a wind power transmission line 21. A transmission line 17 is connected between the electric energy controller 16 and the electrolyzer 18. The electric energy controller 16 is connected to a power grid 35. The electrolyzer 18 is respectively connected to a water inlet pipeline, a hydrogen output pipeline and an oxygen output pipeline. The hydrogen output pipeline is respectively connected to a hydrogen user connection pipeline and a hydrogen storage pipeline. The hydrogen user connection pipeline The pipeline is connected to a hydrogen user 1, and a first-level hydrogen compressor 4, a first-level hydrogen cooler 6, a second-level hydrogen compressor 7, a second-level hydrogen cooler 8 and a high-pressure insulated hydrogen storage tank 9 are sequentially arranged on the hydrogen storage pipeline. The oxygen output pipeline is respectively connected to the oxygen user connecting pipeline and the oxygen storage pipeline, and the oxygen user connecting pipeline is connected to the oxygen user 22. A first-level oxygen compressor 26, a first-level oxygen cooler 28, a second-level oxygen compressor 29, a second-level oxygen cooler 30 and a high-pressure insulated oxygen storage tank 31 are sequentially arranged on the oxygen storage pipeline.

[0025] The hydrogen output pipeline is provided with an electrolyzer outlet hydrogen shut-off valve 13, the oxygen output pipeline is provided with an electrolyzer outlet oxygen shut-off valve 24, and the water inlet pipeline is provided with an electrolyzer water inlet valve 19.

[0026] A hydrogen distribution valve 2 is provided on the hydrogen user connection pipeline.

[0027] A hydrogen compression valve 3 is provided on the hydrogen storage pipeline.

[0028] An oxygen distribution valve 23 is provided on the oxygen user connection pipeline.

[0029] An oxygen compression valve 25 is provided on the oxygen storage pipeline.

[0030] The primary hydrogen cooler 6 is connected to a primary hydrogen cooler water inlet pipe and a primary hydrogen cooler water outlet pipe. The primary hydrogen cooler water inlet pipe is provided with a primary hydrogen cooler water inlet valve 5, and the primary hydrogen cooler water outlet pipe is provided with a primary hydrogen cooler water outlet valve 12.

[0031] The secondary hydrogen cooler 8 is connected to a secondary hydrogen cooler refrigerant inlet pipe and a secondary hydrogen cooler refrigerant discharge pipe. The secondary hydrogen cooler refrigerant inlet pipe is provided with a secondary hydrogen cooler refrigerant inlet valve 10, and the secondary hydrogen cooler refrigerant discharge pipe is provided with a secondary hydrogen cooler refrigerant outlet valve 11.

[0032] The primary oxygen cooler 28 is connected to a primary oxygen cooler water inlet pipe and a primary oxygen cooler water outlet pipe. The primary oxygen cooler water inlet pipe is provided with a primary oxygen cooler water inlet valve 27, and the primary oxygen cooler water outlet pipe is provided with a primary oxygen cooler water outlet valve 34.

[0033] The secondary oxygen cooler 30 is connected with a secondary oxygen cooler refrigerant inlet pipe and a secondary oxygen cooler refrigerant outlet pipe. The secondary oxygen cooler refrigerant inlet pipe is provided with a secondary oxygen cooler refrigerant inlet valve 32, and the secondary oxygen cooler refrigerant outlet pipe is provided with a secondary oxygen cooler refrigerant outlet valve 33.

[0034] The photovoltaic panel 14 is connected to the power controller 16 , the wind turbine 20 is connected to the power controller 16 , the power controller 16 is connected to the electrolytic cell 18 via a power transmission line 17 , and the power controller 16 is also directly connected to the power grid 35 .

[0035] The electrolyzer 18 can electrolyze water into hydrogen and oxygen.

[0036] The hydrogen can be divided into two paths through the hydrogen shut-off valve 13 at the outlet of the electrolyzer. One path sends the hydrogen directly to the hydrogen user 1 through the hydrogen distribution valve 2, and the other path enters the hydrogen compression system through the hydrogen compression valve 3, and passes through the first-stage hydrogen compressor 4, the first-stage hydrogen cooler 6, the second-stage hydrogen compressor 7, and the second-stage hydrogen cooler 8 in sequence to become low-temperature and high-pressure hydrogen, and is finally stored in the high-pressure insulated hydrogen storage tank 9, and can then be transported out by a transport vehicle.

[0037] The oxygen is also divided into two paths through the oxygen shut-off valve 24 at the outlet of the electrolyzer. One path sends the oxygen directly to the oxygen user 22 through the oxygen distribution valve 23, and the other path enters the oxygen compression system through the oxygen compression valve 25, and is converted into low-temperature and high-pressure oxygen through the first-stage oxygen compressor 26, the first-stage oxygen cooler 28, the second-stage oxygen compressor 29, and the second-stage oxygen cooler 30 in sequence, and is finally stored in the high-pressure insulated oxygen storage tank 31, and then transported out by a transport vehicle.

[0038] The power controller 16 can receive the electric energy generated by the photovoltaic panel 14 and the wind turbine 20. At the same time, the power controller 16 can distribute the electric energy sent by the wind turbine 20 and the photovoltaic panel 14 according to the peak and valley conditions of the power consumption of the power grid 35. If the power grid 35 is in a peak period of power consumption, the electric energy can be directly sent to the power grid 35. If the power grid 35 is in a low period of power consumption, the electric energy can be transmitted to the electrolytic cell 18.

[0039] The hydrogen electrolyzed by the electrolyzer 18 can be distributed according to the demand of the nearby hydrogen user 1, with priority given to meeting the demand of the hydrogen user 1. The remaining hydrogen after meeting the demand of the hydrogen user 1 can be sent to the hydrogen compression system for compression, storage, and external delivery.

[0040] The primary hydrogen cooler 6 is mainly used to cool the hydrogen compressed by the primary hydrogen compressor 4. The hydrogen can be cooled by adjusting the primary hydrogen cooling water inlet valve 5 and the primary hydrogen cooling water outlet valve 12 according to different loads and different hydrogen temperatures to ensure that the hydrogen temperature is qualified before entering the secondary hydrogen cooler 8.

[0041] The secondary hydrogen cooler 8 uses refrigerant for cooling to meet the deep cooling of hydrogen. By adjusting the secondary hydrogen cooler refrigerant inlet valve 10 and the secondary hydrogen cooler refrigerant outlet valve 11, the hydrogen temperature entering the high-pressure insulated hydrogen storage tank 9 is guaranteed to be qualified, thereby ensuring the compression effect of the hydrogen.

[0042] The oxygen electrolyzed by the electrolyzer 18 can be distributed according to the demand of the nearby oxygen users 22, with priority given to meeting the demand of the oxygen users 22. The remaining oxygen after meeting the demand of the oxygen users 22 can be sent to the oxygen compression system for compression, storage, and external delivery.

[0043] The primary oxygen cooler 28 is mainly used to cool the oxygen compressed by the primary oxygen compressor 26. The oxygen can be cooled by adjusting the primary oxygen cooling water inlet valve 27 and the primary oxygen cooling water outlet valve 34 according to different loads and different oxygen temperatures to ensure that the oxygen temperature is qualified before entering the secondary oxygen cooler 30.

[0044] The secondary oxygen cooler 30 uses refrigerant for cooling to meet the deep cooling of oxygen. By adjusting the secondary oxygen cooler refrigerant inlet valve 32 and the secondary oxygen cooler refrigerant outlet valve 33, the temperature of oxygen entering the high-pressure insulated hydrogen storage tank 31 is guaranteed to be qualified, thereby ensuring the compression effect of oxygen.

[0045] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A new energy station energy storage and delivery system, characterized in that: The invention comprises an electric energy controller (16) and an electrolyzer (18), wherein the electric energy controller (16) is connected to a photovoltaic panel (14) via a photovoltaic transmission line (15), the electric energy controller (16) is connected to a wind power generator (20) via a wind power transmission line (21), a transmission line (17) is connected between the electric energy controller (16) and the electrolyzer (18), the electric energy controller (16) is connected to a power grid (35), the electrolyzer (18) is respectively connected to a water inlet pipeline, a hydrogen output pipeline and an oxygen output pipeline, the hydrogen output pipeline is respectively connected to a hydrogen user connection pipeline and a hydrogen storage pipeline, and the hydrogen user connection pipeline is The pipe is connected to a hydrogen user (1); a first-stage hydrogen compressor (4), a first-stage hydrogen cooler (6), a second-stage hydrogen compressor (7), a second-stage hydrogen cooler (8) and a high-pressure insulated hydrogen storage tank (9) are arranged in sequence on the hydrogen storage pipeline; an oxygen output pipeline is respectively connected to an oxygen user connection pipeline and an oxygen storage pipeline; the oxygen user connection pipeline is connected to an oxygen user (22); and a first-stage oxygen compressor (26), a first-stage oxygen cooler (28), a second-stage oxygen compressor (29), a second-stage oxygen cooler (30) and a high-pressure insulated oxygen storage tank (31) are arranged in sequence on the oxygen storage pipeline.

2. A new energy station energy storage and delivery system according to claim 1, characterized in that: The hydrogen output pipeline is provided with an electrolyzer outlet hydrogen shut-off valve (13), the oxygen output pipeline is provided with an electrolyzer outlet oxygen shut-off valve (24), and the water inlet pipeline is provided with an electrolyzer water inlet valve (19).

3. A new energy station energy storage and delivery system according to claim 2, characterized in that: A hydrogen distribution valve (2) is provided on the hydrogen user connection pipeline.

4. A new energy station energy storage and delivery system according to claim 3, characterized in that: A hydrogen compression valve (3) is provided on the hydrogen storage pipeline.

5. A new energy station energy storage and delivery system according to claim 4, characterized in that: An oxygen distribution valve (23) is provided on the oxygen user connection pipeline.

6. A new energy station energy storage and delivery system according to claim 5, characterized in that: An oxygen compression valve (25) is provided on the oxygen storage pipeline.

7. A new energy station energy storage and delivery system according to claim 6, characterized in that: The primary hydrogen cooler (6) is connected to a primary hydrogen cooler water inlet pipe and a primary hydrogen cooler water outlet pipe, the primary hydrogen cooler water inlet pipe is provided with a primary hydrogen cooler water inlet valve (5), and the primary hydrogen cooler water outlet pipe is provided with a primary hydrogen cooler water outlet valve (12).

8. A new energy station energy storage and delivery system according to claim 7, characterized in that: The secondary hydrogen cooler (8) is connected to a secondary hydrogen cooler refrigerant inlet pipe and a secondary hydrogen cooler refrigerant outlet pipe, the secondary hydrogen cooler refrigerant inlet pipe is provided with a secondary hydrogen cooler refrigerant inlet valve (10), and the secondary hydrogen cooler refrigerant outlet pipe is provided with a secondary hydrogen cooler refrigerant outlet valve (11).

9. A new energy station energy storage and delivery system according to claim 8, characterized in that: The primary oxygen cooler (28) is connected to a primary oxygen cooler water inlet pipe and a primary oxygen cooler water outlet pipe, the primary oxygen cooler water inlet pipe is provided with a primary oxygen cooler water inlet valve (27), and the primary oxygen cooler water outlet pipe is provided with a primary oxygen cooler water outlet valve (34).

10. A new energy station energy storage and delivery system according to claim 9, characterized in that: The secondary oxygen cooler (30) is connected to a secondary oxygen cooler refrigerant inlet pipe and a secondary oxygen cooler refrigerant outlet pipe, the secondary oxygen cooler refrigerant inlet pipe is provided with a secondary oxygen cooler refrigerant inlet valve (32), and the secondary oxygen cooler refrigerant outlet pipe is provided with a secondary oxygen cooler refrigerant outlet valve (33).

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