Alkali liquor mixing and conveying integrated device of seawater hydrogen production system

Abstract

The utility model discloses an alkali liquor mixing and conveying integrated device of a seawater hydrogen production system. The alkali liquor mixing and conveying integrated device comprises an alkali liquor metering and supplementing unit, an alkali liquor input temporary storage unit, an alkali liquor mixing unit and an alkali liquor output temporary storage unit which are matched with one another to work, according to the utility model, the alkali liquor metering and supplementing unit, the alkali liquor input temporary storage unit, the alkali liquor mixing unit and the alkali liquor output temporary storage unit are matched to work, so that the mass transfer module in the seawater electrolysis hydrogen production system is connected with an alkali liquor system in the electrolysis module, and the safety of the alkali liquor flowing circularly among the systems is ensured; and the concentration and the flow of the input alkali liquor of each system are accurately controlled, and the long-time and high-efficiency operation of the electrolytic hydrogen production system device is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to sea water hydrogen production system's lye conveying technical field especially relates to a sea water hydrogen production system's lye mixing conveying integration device. BACKGROUND

[0002] In daily life, we are consuming various fossil fuels every day, and now all countries in the world are facing the problem of resource depletion and serious environmental pollution, so all countries in the world are also seeking new alternative clean energy, among which hydrogen as a very clean energy has many hydrogen production technologies such as petroleum thermal cracking byproducts, coke oven gas, etc. which are not free from mineral resources, and all generate harmful environmental gases after burning. Most of the designs on the market are through water electrolysis to produce hydrogen, and more and more people are using seawater electrolysis to produce hydrogen.

[0003] The current marine engineering is developing rapidly, and is expanding from shallow sea to deep sea, and the application of hydrogen energy is also expanding from land to sea. The seawater hydrogen production system is more complex than the land hydrogen production system, and the key electrolyte lye also needs to complete complex circulation between the electrolysis hydrogen production equipment and the mass transfer device equipment. Due to the high cost of offshore platforms, the lye circulation needs to be integrated and circulated in the smallest equipment possible, while ensuring the accuracy and safety of its input and output. However, the current technology is less designed for seawater hydrogen production system, and the equipment area is not considered.

[0004] Therefore, a sea water hydrogen production system's lye mixing conveying integration device is proposed. UTILITY MODEL CONTENT

[0005] In order to solve the above problems existing in the prior art, the utility model provides a sea water hydrogen production system's lye mixing conveying integration device.

[0006] The technical scheme of the utility model is as follows:

[0007] A sea water hydrogen production system's lye mixing conveying integration device, comprising a lye metering and supplementing unit, a lye input temporary storage unit, a lye mixing unit and a lye output temporary storage unit, the lye metering and supplementing unit is used for receiving high-concentration lye generated by electrolysis hydrogen production equipment, and uniformly inputting the high-concentration lye into the lye input temporary storage unit, the lye input temporary storage unit is used for temporarily storing high-concentration lye and accurately controlling the flow of lye into the lye mixing tank of the lye mixing unit, the lye mixing unit is used for receiving overflow lye of the mass transfer device and diluting high-concentration lye generated by the electrolysis hydrogen production equipment; the lye mixing unit inputs lye into the lye output temporary storage unit, and the lye output temporary storage unit is used for temporarily storing lye with standard concentration and accurately controlling the speed of lye with standard concentration into the electrolysis device.

[0008] Preferably, the alkali solution metering and supplementing unit comprises an alkali solution metering and supplementing tank body and a support frame A, the top of the support frame A is fixedly installed with the alkali solution metering and supplementing tank body, and the bottom of the support frame A is fixed to the top of an alkali solution input temporary storage tank body in an alkali solution input temporary storage unit; the top of the alkali solution metering and supplementing tank body is provided with a vent A and an alkali solution input port A, and a liquid level meter A and an alkali solution concentration detection meter A are inserted into the top of the alkali solution metering and supplementing tank body; a pipeline is arranged on the side wall of the alkali solution metering and supplementing tank body close to the bottom and is communicated with the alkali solution input port B in the alkali solution input temporary storage unit, a stop valve A and an output pump A are sequentially installed on the pipeline, and a discharge port A is arranged at the bottom of the alkali solution metering and supplementing tank body.

[0009] Preferably, the top end of the vent A is in the form of a U-shaped opening downward.

[0010] Preferably, the alkali solution input temporary storage unit comprises an alkali solution input temporary storage tank body, a group of support frames B are symmetrically installed at the bottom of the alkali solution input temporary storage tank body, the bottom of each support frame B is fixed to the top of an alkali solution mixing tank body in an alkali solution mixing unit, and a discharge port B is arranged at the bottom of the alkali solution input temporary storage tank body; the top of the alkali solution input temporary storage tank body is provided with a vent B and an alkali solution input port B for receiving the alkali solution input by the alkali solution metering and supplementing unit, and a liquid level meter B and an alkali solution concentration detection meter B are inserted into the top of the alkali solution input temporary storage tank body; a pipeline is arranged on the side wall of the alkali solution input temporary storage tank body close to the bottom and is communicated with a circulating alkali solution main pipe inlet in the alkali solution mixing unit, and a stop valve B and an output pump B are sequentially installed on the pipeline.

[0011] Preferably, the alkali solution mixing unit comprises an alkali solution mixing tank body, a vent C, a circulating alkali solution main pipe inlet and a plurality of mass transfer alkali solution inlets are sequentially arranged at the top of the alkali solution mixing tank body, a pure water tank and a concentrated alkali solution tank are fixedly installed at the top of the alkali solution mixing tank body and are communicated with the inside of the alkali solution mixing tank body, a liquid level meter C and an alkali solution concentration detection meter C are inserted into the top of the alkali solution mixing tank body; a group of stirring rollers are arranged on the bottom wall of the alkali solution mixing tank body, a plurality of mass transfer alkali solution outlets and a discharge port C are arranged at the bottom of the alkali solution mixing tank body; a pipeline is arranged on the side wall of the alkali solution mixing tank body close to the bottom and is communicated with an alkali solution input port C in an alkali solution output temporary storage unit, and a stop valve C and an output pump C are sequentially installed on the pipeline.

[0012] Preferably, the alkali solution output temporary storage unit comprises an alkali solution output temporary storage tank body, a vent D and an alkali solution input port C are arranged at the top of the alkali solution output temporary storage tank body, a liquid level meter D and an alkali solution concentration detection meter D are inserted into the top of the alkali solution output temporary storage tank body, a discharge port D is arranged at the bottom of the alkali solution output temporary storage tank body, a discharge pipeline is arranged on the side wall of the alkali solution output temporary storage tank body close to the bottom, and a stop valve D and an output pump D are sequentially installed on the discharge pipeline.

[0013] The utility model has the following beneficial effects: the utility model through lye metering supplement unit, lye input temporary storage unit, lye mixing unit and lye output temporary storage unit mutual cooperation work's four units, realized the lye system in the mass transfer module and electrolysis module in seawater electrolysis hydrogen production system is connected, ensured the security of lye circulation in each system, and realized the accurate control of each system input lye concentration and flow, and the long time, high efficiency operation of electrolysis hydrogen production system device was guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is whole device structure schematic diagram of the utility model;

[0015] Figure 2 It is lye metering supplement unit structure schematic diagram of the utility model;

[0016] Figure 3 It is structure schematic diagram of lye input temporary storage unit of the utility model;

[0017] Figure 4 It is lye mixing unit structure schematic diagram of the utility model;

[0018] Figure 5 It is lye output temporary storage unit structure schematic diagram of the utility model.

[0019] Reference signs in the drawing are shown as follows:

[0020] 1, lye metering supplement unit;11, vent A;12, liquid level meter A;13, lye concentration detection meter A;14, lye input port A;15, lye metering supplement tank body;16, stop valve A;17, output pump A;18, support frame A;19, purge port A;2, lye input temporary storage unit;21, lye input port B;22, liquid level meter B;23, lye concentration detection meter B;24, lye input temporary storage tank body;25, stop valve B;26, output pump B;27, support frame B;28, vent B;29, purge port B;3, lye mixing unit;31, vent C;32, liquid level meter C;33, lye concentration detection meter C;34, circulating lye main pipe inlet;35, lye mixing tank body;36, pure water tank;37, concentrated lye tank;38, stirring roller;39, mass transfer lye inlet;310, mass transfer lye outlet;311, stop valve C;312, output pump C;313, purge port C;4, lye output temporary storage unit;41, vent D;42, liquid level meter D;43, lye concentration detection meter D;44, lye output temporary storage tank body;45, lye input port C;46, stop valve D;47, output pump D;48, purge port D. DETAILED DESCRIPTION

[0021] Clearly, the described embodiments are merely part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present utility model.

[0022] Referring to Figures 1 to 5 A kind of lye mixing and conveying integrated device of seawater hydrogen production system, including lye metering supplement unit 1, lye input temporary storage unit 2, lye mixing unit 3 and lye output temporary storage unit 4, lye metering supplement unit 1 is used to receive the high concentration lye generated by electrolytic hydrogen production equipment, and high concentration lye is uniformly input into lye input temporary storage unit 2, lye input temporary storage unit 2 is used to temporarily store high concentration lye and accurately control the flow of lye into lye mixing unit 3 lye mixing tank 35, lye mixing unit 3 is used to accept the overflow lye of mass transfer device and dilute the high concentration lye generated by electrolytic hydrogen production equipment;Lye mixing unit 3 inputs lye to lye output temporary storage unit 4, and lye output temporary storage unit 4 is used to temporarily store lye of concentration up to standard and accurately control the speed of lye of concentration up to standard into electrolytic device.

[0023] As Figure 2 Shown, lye metering supplement unit 1 includes lye metering supplement tank 15 and support frame A18, support frame A18 top fixed mounting lye metering supplement tank 15, the bottom of support frame A18 is fixed in the top of lye input temporary storage tank 24 in lye input temporary storage unit 2;The top of lye metering supplement tank 15 is provided with vent A11 with the top of U-shaped bend opening downward and lye input port A14, the vent A11 is used to discharge the medium that unit harms normal operation and maintenance, the lye input port A14 is connected with electrolytic hydrogen production device, and the lye in electrolytic hydrogen production device is input into lye metering supplement tank 15 at about every 6 minutes 50kg rate;

[0024] At the same time, liquid level gauge A12 and lye concentration detection meter A13 are inserted in the top of lye metering supplement tank 15, liquid level gauge A12 is used to monitor the liquid level state in lye metering supplement tank 15 in real time, and alarm is carried out when the liquid level is too high or too low, the lye concentration detection meter A13 is used to monitor the lye concentration in lye metering supplement tank 15 in real time, and alarm is carried out when the lye concentration is too high or too low;

[0025] The alkali liquid metering supplement tank 15 is provided with a pipeline on the side wall near the bottom to communicate with the alkali liquid inlet B21 in the alkali liquid input temporary storage unit 2, a stop valve A16 and an output pump A17 are sequentially installed on the pipeline, a drain port A19 is provided at the bottom of the alkali liquid metering supplement tank 15, the stop valve A16 is used to block the continuous downward output of alkali liquid in the alkali liquid metering supplement tank 15, the output pump A17 is used to pump the alkali liquid in the alkali liquid metering supplement tank 15 into the alkali liquid input temporary storage unit 2 at a rate of 50 kg per minute every 6 minutes, and the drain port 19 is used to discharge waste and dirt in the alkali liquid metering supplement tank 15.

[0026] As shown in Figure 3 The alkali liquid input temporary storage unit 2 is mainly used to temporarily store high-concentration alkali liquid and accurately control the flow of alkali liquid into the mixing tank, which includes an alkali liquid input temporary storage tank 24, a group of support frames B27 are symmetrically installed at the bottom of the alkali liquid input temporary storage tank 24, the bottom of the support frame B27 is fixed to the top of the alkali liquid mixing tank 35 in the alkali liquid mixing unit 3, and a drain port B29 is provided at the bottom of the alkali liquid input temporary storage tank 24; an emptying port B28 and an alkali liquid inlet B21 for receiving the input alkali liquid from the alkali liquid metering supplement unit 1 are provided at the top of the alkali liquid input temporary storage tank 24, and the alkali liquid inlet B21 is used to receive the input alkali liquid from the alkali liquid metering supplement unit 1;

[0027] A liquid level meter B22 and an alkali liquid concentration detection meter B23 are inserted at the top of the alkali liquid input temporary storage tank 24, the liquid level meter B22 is used to monitor the liquid level state in the alkali liquid input temporary storage tank 24 in real time, and an alarm is given when the liquid level is too high or too low, the alkali liquid concentration detection meter B23 is used to monitor the alkali liquid concentration in the alkali liquid input temporary storage tank 24 in real time, and an alarm is given when the alkali liquid concentration is too high or too low; a pipeline is provided on the side wall near the bottom of the alkali liquid input temporary storage tank 24 to communicate with the circulating alkali liquid main pipe inlet 34 in the alkali liquid mixing unit 3, and a stop valve B25 and an output pump B26 are sequentially installed on the pipeline, the stop valve B25 is used to block the continuous downward output of alkali liquid in the alkali liquid metering supplement tank 24, and the output pump B26 is used to pump the alkali liquid in the alkali liquid input temporary storage tank 24 into the alkali liquid mixing unit 3 at a rate of 500 kg at a time every 60 minutes; the emptying port B28 is used to discharge the medium that harms normal operation and maintenance in the unit, and the drain port B29 is used to discharge waste and dirt in the alkali liquid input temporary storage tank 24.

[0028] As shown in Figure 4As shown, the lye mixing unit 3 is mainly used for receiving the overflow lye of the mass transfer device and diluting the high-concentration lye generated by the electrolytic hydrogen production equipment, which includes a lye mixing tank 35, a vent C31, a circulating lye main inlet 34 and a plurality of mass transfer lye inlets 39 are sequentially arranged on the top of the lye mixing tank 35, the vent C31 is used for discharging the medium that is harmful to the normal operation and maintenance of the unit; the circulating lye main inlet 34 is used for receiving 500 kg of lye pumped once every 60 minutes from the lye input temporary storage unit 2.

[0029] A pure water tank 36 and a concentrated lye tank 37 are fixedly installed on the top of the lye mixing tank 35 and communicate with the inside of the lye mixing tank 35, the pure water tank 36 stores pure water, when the lye concentration detector C33 detects that the lye concentration is too high, the pure water in the pure water tank 36 is supplemented into the lye mixing tank 35, the concentrated lye tank 37 stores concentrated lye with a concentration of 40%, when the lye concentration detector C33 detects that the lye concentration is too low, the concentrated lye in the concentrated lye tank 37 is supplemented into the lye mixing tank 35.

[0030] A liquid level meter C32 and a lye concentration detector C33 are inserted on the top of the lye mixing tank 35, the liquid level meter C32 is used for real-time monitoring of the liquid level state in the tank, and an alarm is given when the liquid level is too high or too low, the lye concentration detector C33 is used for real-time monitoring of the lye concentration in the lye mixing tank 35, and an alarm is given when the lye concentration is too high or too low; a group of stirring rollers 38 are arranged on the bottom wall of the lye mixing tank 35, the stirring rollers 38 are made of corrosion-resistant materials and can be started and stopped by operating a switch, and are used for mixing the lye to make the concentration uniform;

[0031] A plurality of mass transfer lye outlets 310 and a complete discharge port C313 are arranged on the bottom of the lye mixing tank 35; a pipe communicating with the lye inlet C45 in the lye output temporary storage unit 4 is arranged on the side wall of the lye mixing tank 35 close to the bottom, and a stop valve C311 and an output pump C312 are sequentially arranged on the pipe;

[0032] The mass transfer lye inlet 39 is used for receiving the low-concentration lye overflowed from the mass transfer device, the mass transfer lye outlet 310 is used for delivering the mixed high-concentration lye to the mass transfer device, the stop valve C311 is used for blocking the continuous output of the lye in the lye mixing tank 35, the output pump C312 is used for pumping 600 kg / h of lye in the lye mixing tank 35 into the lye output temporary storage unit 4 once within 1-2 minutes, and the complete discharge port C313 is used for discharging the waste and dirt in the lye mixing tank 35.

[0033] As shown in FIG. 4, the lye output temporary storage unit 4 is mainly used for receiving the high-concentration lye from the lye mixing unit 3 and temporarily storing the lye, which includes a lye output tank 41, a lye inlet C45, a lye outlet C46 and a lye outlet C47 are sequentially arranged on the top of the lye output tank 41, the lye inlet C45 is used for receiving the high-concentration lye from the lye mixing unit 3, the lye outlet C46 is used for delivering the high-concentration lye to the electrolytic hydrogen production equipment, and the lye outlet C47 is used for discharging the waste and dirt in the lye output tank 41. Figure 5As shown, the lye output temporary storage unit 4 is used for temporarily storing the lye with standard concentration and accurately controlling the speed of the lye into the electrolysis device, including a lye output temporary storage tank body 44, a vent D41 and a lye input port C45 are arranged at the top of the lye output temporary storage tank body 44, the vent D41 is used for discharging the medium which is harmful to the normal operation and maintenance in the unit; and a liquid level meter D42 and a lye concentration detection meter D43 are arranged at the top of the lye output temporary storage tank body 44, the liquid level meter D42 is used for monitoring the liquid level state in the tank in real time, and an alarm is given when the liquid level is too high or too low. The lye concentration detection meter D43 is used for monitoring the lye concentration in the lye output temporary storage tank body 44 in real time, the lye input port 45 is used for receiving the 600kg / h input lye from the lye mixing unit 3; a cut-off valve 46 is used for blocking the continuous output of the lye in the lye output temporary storage tank body 44, an output pump 47 is used for pumping the lye in the lye output temporary storage tank body 44 into the electrolytic hydrogen production process at a rate of 60kg per interval of 6 minutes; a discharge port D48 is arranged at the bottom of the lye output temporary storage tank body 44, and the discharge port 48 is used for discharging the waste and dirt in the lye output temporary storage tank body 44; a discharge pipeline is arranged on the side wall close to the bottom of the lye output temporary storage tank body 44, and a cut-off valve D46 and an output pump D47 are sequentially arranged on the discharge pipeline.

[0034] The working principle of the utility model:

[0035] In the utility model, the lye metering and supplementing unit 1, the lye input temporary storage unit 2, the lye mixing unit 3 and the lye output temporary storage unit 4 work together to complete the lye circulation process, the lye metering and supplementing unit 1 is used for receiving the high-concentration lye generated by the electrolytic hydrogen production equipment, and uniformly inputting the high-concentration lye into the lye input temporary storage unit 2, the lye input temporary storage unit 2 is used for temporarily storing the high-concentration lye and accurately controlling the flow of the lye into the lye mixing tank body 35 in the lye mixing unit 3, the lye mixing unit 3 is used for receiving the overflow lye of the mass transfer device and diluting the high-concentration lye generated by the electrolytic hydrogen production equipment; the lye mixing unit 3 inputs the lye into the lye output temporary storage unit 4, and the lye output temporary storage unit 4 is used for temporarily storing the lye with standard concentration and accurately controlling the speed of the lye with standard concentration into the electrolysis device;

[0036] First, the concentration of the alkali solution in the electrolysis device increases after the electrolysis reaction, and the alkali solution is input into the alkali solution metering and supplementing unit 1 in the alkali solution mixing and input conveying integrated device at a rate of about 50 kg per 6 minutes, the alkali solution metering and supplementing unit 1 inputs 50 kg of alkali solution into the alkali solution input temporary storage unit 2 within 1 minute, and the alkali solution metering and supplementing unit 1 mainly plays a role of quantitative metering of the input alkali solution; the alkali solution input temporary storage unit 2 receives the alkali solution for 10 times (i.e. 500 kg / h) and then inputs the alkali solution into the alkali solution mixing unit 3 at one time within 1-2 minutes, the unit is used for temporarily storing the cooled alkali solution and conveying it every hour, so as to reduce the instability of the output alkali solution in the alkali solution mixing unit 3 caused by frequent input of concentrated alkali solution; the alkali solution mixing unit 3 has three functions: one is to provide alkali solution for the mass transfer device, the second is to receive overflow alkali solution from the mass transfer device, and the third is to receive 500 kg / h of alkali solution from the alkali solution input temporary storage unit, and at the same time, the mixed alkali solution with a concentration meeting the demand of electrolytic hydrogen production is pumped into the alkali solution output temporary storage unit 4 at a rate of 600 kg / h at one time within 1-2 minutes. At the same time, the alkali solution mixing unit 3 has an emergency pure water tank and a concentrated alkali solution tank to avoid the imbalance of the concentration of the alkali solution caused by failure; after the alkali solution enters the alkali solution output temporary storage unit 4, the unit temporarily stores the alkali solution with a concentration meeting the demand and accurately controls the speed to make the alkali solution conveying back to the electrolytic hydrogen production device to continue hydrogen production.

[0037] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, is also included in the patent protection range of the present application.

Claims

1. An integrated device for mixing and conveying alkaline solution in a seawater hydrogen production system, characterized in that: The alkali solution metering supplement unit (1) is used for receiving high-concentration alkali solution generated by electrolytic hydrogen production equipment and uniformly inputting the high-concentration alkali solution into the alkali solution input temporary storage unit (2).

2. The alkali solution mixing and delivering integrated device of a seawater hydrogen production system according to claim 1, characterized in that: The alkali solution metering supplement unit (1) comprises an alkali solution metering supplement tank (15) and a support frame A (18), the top of the support frame A (18) is fixedly installed with the alkali solution metering supplement tank (15), and the bottom of the support frame A (18) is fixed to the top of an alkali solution input temporary storage tank (24) in the alkali solution input temporary storage unit (2); the top of the alkali solution metering supplement tank (15) is provided with a vent A (11) and an alkali solution input port A (14), and a liquid level meter A (12) and an alkali solution concentration detection meter A (13) are arranged on the top of the alkali solution metering supplement tank (15); a pipeline is arranged on the side wall of the alkali solution metering supplement tank (15) close to the bottom and is communicated with the alkali solution input port B (21) in the alkali solution input temporary storage unit (2), a stop valve A (16) and an output pump A (17) are sequentially arranged on the pipeline, and a drain port A (19) is arranged on the bottom of the alkali solution metering supplement tank (15).

3. The alkali solution mixing and delivering integrated device of a seawater hydrogen production system according to claim 2, characterized in that: The vent A (11) is in a U-shaped bent opening downward at the top end.

4. The alkali solution mixing and delivering integrated device of a seawater hydrogen production system according to claim 1, characterized in that: The alkali solution input temporary storage unit (2) comprises an alkali solution input temporary storage tank (24), a group of support frames B (27) are symmetrically arranged on the bottom of the alkali solution input temporary storage tank (24), the bottom of the support frame B (27) is fixed to the top of an alkali solution mixing tank (35) in the alkali solution mixing unit (3), and a drain port B (29) is arranged on the bottom of the alkali solution input temporary storage tank (24); the top of the alkali solution input temporary storage tank (24) is provided with a vent B (28) and an alkali solution input port B (21) for receiving alkali solution input by the alkali solution metering supplement unit (1), and a liquid level meter B (22) and an alkali solution concentration detection meter B (23) are arranged on the top of the alkali solution input temporary storage tank (24), a pipeline is arranged on the side wall of the alkali solution input temporary storage tank (24) close to the bottom and is communicated with a circulating alkali solution main pipe inlet (34) in the alkali solution mixing unit (3), and a stop valve B (25) and an output pump B (26) are sequentially arranged on the pipeline.

5. The alkali solution mixing and delivering integrated device of a seawater hydrogen production system according to claim 1, characterized in that: The lye mixing unit (3) comprises a lye mixing tank body (35), a vent C (31), a circulating lye main inlet (34) and a plurality of mass transfer lye inlets (39) are sequentially arranged on the top of the lye mixing tank body (35), and a pure water tank (36) and a concentrated lye tank (37) are fixedly installed on the top of the lye mixing tank body (35) and communicate with the inside of the lye mixing tank body (35), a liquid level meter C (32) and a lye concentration detector C (33) are inserted on the top of the lye mixing tank body (35); a group of stirring rollers (38) are arranged on the bottom wall of the lye mixing tank body (35), a plurality of mass transfer lye outlets (310) and a discharge port C (313) are arranged on the bottom of the lye mixing tank body (35); a pipeline for the lye output temporary storage unit (4) is arranged on the side wall of the lye mixing tank body (35) close to the bottom, and a lye inlet C (45) is arranged on the pipeline, and a stop valve C (311) and an output pump C (312) are sequentially arranged on the pipeline.

6. The alkali solution mixing and delivering integrated device of a seawater hydrogen production system according to claim 1, characterized in that: The lye output temporary storage unit (4) comprises a lye output temporary storage tank body (44), a vent D (41) and a lye inlet C (45) are arranged on the top of the lye output temporary storage tank body (44), and a liquid level meter D (42) and a lye concentration detector D (43) are inserted on the top of the lye output temporary storage tank body (44), a discharge port D (48) is arranged on the bottom of the lye output temporary storage tank body (44), a discharge pipeline is arranged on the side wall of the lye output temporary storage tank body (44) close to the bottom, and a stop valve D (46) and an output pump D (47) are sequentially arranged on the discharge pipeline.

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