Cooler condensate water automatic discharge device of water electrolysis hydrogen production system

Abstract

The utility model provides a cooler condensate water automatic discharge device of a water electrolysis hydrogen production system, which comprises a cooler, an L-shaped liquid level switch and a self-control valve, the L-shaped liquid level switch comprises a guide rod, a high-position floating ball, a low-position floating ball, a retainer ring and a sealing structure, the high-position floating ball and the low-position floating ball are sleeved on the guide rod in a floating manner, and the self-control valve is arranged on the guide rod. Matched sensing assemblies are arranged in the high-position floating ball, the low-position floating ball and the guide rod, the sensing assemblies are electrically connected with the control system, and the control system is electrically connected with the self-control valve. According to the utility model, accurate and quantitative drainage is realized through the high / low level floating ball of the plug-in L-shaped liquid level switch, so that the waste of hydrogen (or oxygen) is effectively reduced, the gas utilization rate is improved, and the cost is effectively reduced; the L-shaped liquid level switch is small in size and easy and convenient to install, the gas cooler does not need to be greatly transformed, a large amount of installation space does not need to be occupied, the equipment purchase cost and the installation cost are reduced, and the space occupied due to the fact that equipment is additionally arranged is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water electrolysis hydrogen production technical field especially relates to a water electrolysis hydrogen production system's cooler condensate automatic discharge device. BACKGROUND

[0002] Water electrolysis hydrogen production system mainly comprises two big parts of hydrogen production and purification. The hydrogen production part mainly includes electrolytic tank, hydrogen oxygen separator, hydrogen / oxygen cooler, lye cooler, lye filter, lye circulating pump, scrubber and other equipment. When working, electrolytic tank decomposes water to produce hydrogen and oxygen, separates the lye in the gas through hydrogen oxygen separator, washes through scrubber, and obtains crude hydrogen through hydrogen / oxygen cooler condensation and water removal, and the crude hydrogen enters the purification part to become product hydrogen further deoxidization and drying. In this process, the cooler will produce condensate, and the condensate needs to be discharged in time.

[0003] At present, the traditional condensate drainage mode is to install a water collector at the bottom of the cooler, and electromagnetic valves (or pneumatic valves) are arranged before and after the water collector, and the drainage is carried out by sequentially opening the electromagnetic valves (or pneumatic valves) before and after the water collector at a fixed time. However, this drainage mode cannot know the actual water storage capacity in the water collector, and a large amount of hydrogen (or oxygen) will be brought out each time, causing gas waste, and in order to prevent hydrogen from escaping, an independent water seal device needs to be additionally provided, increasing the cost and occupying space.

[0004] Therefore, the industry urgently needs a cooler condensate drainage device with simple structure, which will not cause gas waste, realizes quantitative drainage, and meets the requirements of easy disassembly in limited space. UTILITY MODEL CONTENTS

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a water electrolysis hydrogen production system's cooler condensate automatic discharge device, which is used to solve the problems of gas waste, high cost and limited application range in the condensate discharge mode of the prior art.

[0006] To achieve the above-mentioned purpose and other related purposes, the utility model provides a water electrolysis hydrogen production system's cooler condensate automatic discharge device, which comprises a cooler, an "L"-shaped liquid level switch and a self-control valve, the self-control valve is installed at the condensate outlet of the cooler, the "L"-shaped liquid level switch is inserted into the bottom of the cooler, the "L"-shaped liquid level switch comprises a guide rod, a high-level floating ball, a low-level floating ball, a retaining ring and a sealing structure, the guide rod is vertically inserted into the bottom of the cooler and is sealingly connected with the cooler through the sealing structure at the bottom of the guide rod, the high-level floating ball and the low-level floating ball are floatingly sleeved on the guide rod, the high-level floating ball and the low-level floating ball are provided with a matching sensing assembly in the guide rod, the sensing assembly is electrically connected with a control system, and the control system is electrically connected with the self-control valve.

[0007] In an embodiment of the utility model, the baffle ring is arranged at the top, middle and bottom of the guide rod respectively, and is used for limiting the activity range of the high-level float ball and the low-level float ball.

[0008] In an embodiment of the utility model, the bottom of the cooler is provided with a mounting hole, and the L-shaped liquid level switch is inserted into the cooler through the mounting hole.

[0009] In an embodiment of the utility model, the outer wall of the sealing structure is provided with external threads, and the inner wall of the mounting hole is provided with matching internal threads.

[0010] In an embodiment of the utility model, the top of the sealing structure is provided with a sealing surface matched with the mounting hole.

[0011] In an embodiment of the utility model, the condensate water outlet is arranged on the bottom side wall of the condenser.

[0012] In an embodiment of the utility model, the automatic control valve comprises an electromagnetic valve or a pneumatic valve.

[0013] As described above, the cooler condensate water automatic discharge device of the water electrolysis hydrogen production system has the following beneficial effects:

[0014] 1. Precise quantitative drainage: the high / low-level float ball of the plug-in L-shaped liquid level switch is used for precisely controlling the drainage, so that the blind drainage caused by the traditional timing drainage mode is avoided, the waste of hydrogen (or oxygen) is effectively reduced, and the gas utilization rate is improved.

[0015] 2. Strong space adaptability: the plug-in L-shaped liquid level switch has a small volume and is easy to install, without the need of greatly modifying the gas cooler and occupying a large amount of installation space, and is very suitable for the development trend of small and light hydrogen production system equipment and centralization, and is especially suitable for space demanding equipment such as container integrated machines.

[0016] 3. Cost reduction: the structure of the utility model reduces the cost increase caused by gas waste, and only needs to set an electromagnetic valve (or a pneumatic valve), without the need of adding independent water seal equipment, so that the equipment purchase cost and installation cost are reduced, and the space occupied due to the increase of equipment is saved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure diagram of the L-shaped liquid level switch disclosed in the utility model.

[0018] Figure 2 It is a cross-sectional view of the cooler condensate water automatic discharge device of the water electrolysis hydrogen production system disclosed in the utility model.

[0019] Figure 3 It is the external schematic view of the automatic condensate water discharging device of the cooler of the water electrolysis hydrogen production system disclosed in the utility model.

[0020] Element number explanation

[0021] 100, cooler; 101, condensate water outlet; 200, "L" shaped liquid level switch; 201, guide rod; 202, high position floating ball; 203, low position floating ball; 204, blocking ring; 205, sealing surface; 206, sealing structure; 300, automatic control valve. Specific implementation

[0022] The implementation of the utility model will be illustrated by specific embodiments below, and other advantages and effects of the utility model can be easily understood by those skilled in the art from the content disclosed in the specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0023] Please refer to Figure 2 and 3 The utility model provides a kind of automatic condensate water discharging device of cooler of water electrolysis hydrogen production system, including cooler 100, "L" shaped liquid level switch 200 and automatic control valve 300, the automatic control valve 300 is installed at the condensate water outlet 101 of cooler 100 for controlling the discharge of condensate water, "L" shaped liquid level switch 200 is inserted in the bottom of cooler 100, "L" shaped liquid level switch 200 is used to monitor the liquid level of condensate water in cooler 100, to control the on-off of automatic control valve 300, realize the automatic, quantitative discharge of condensate water.

[0024] Reference Figure 1 , "L" shaped liquid level switch 200 is overall "L" shape, including guide rod 201, high position floating ball 202, low position floating ball 203, blocking ring 204 and sealing structure 206, the guide rod 201 is vertically inserted into the bottom of cooler 100, and is sealedly connected with cooler 100 by the sealing structure 206 at the bottom of guide rod 201, the high position floating ball 202 and low position floating ball 203 are floatingly sleeved on guide rod 201, the high position floating ball 202 and low position floating ball 203 are equipped with the inductive assembly matched with guide rod 201, the inductive assembly is electrically connected with control system, and the control system is electrically connected with the automatic control valve 300.

[0025] When the condensate water accumulated at the bottom of the cooler 100 rises to the high liquid level set point, the high ball 202 on the "L" shaped liquid level switch 200 senses the change in water level, and opens the automatic valve 300 through the pre-set program, starting to drain the water. As the condensate water is drained, the water level gradually drops, and when it falls back to the low liquid level set point, the low ball 203 on the "L" shaped liquid level switch 200 senses it, and closes the automatic valve 300 through the program, stopping the water drainage. This cycle realizes the function of quantitative water drainage. Due to the relatively simple structure of the "L" shaped liquid level switch 200, it is small in size and can well adapt to limited space, solving the problems of installation and use in small and lightweight, centralized hydrogen production equipment, especially in container integrated machines.

[0026] Further, the stop ring 204 is arranged at the top, middle and bottom of the guide rod 201 respectively, for limiting the activity range of the high ball 202 and the low ball 203.

[0027] Further, the bottom of the cooler 100 is provided with a mounting hole, and the "L" shaped liquid level switch 200 is inserted into the cooler 100 through the mounting hole. Moreover, the outer wall of the sealing structure 206 is provided with external threads, and the inner wall of the mounting hole is provided with matching internal threads. In order to improve the sealing of the "L" shaped liquid level switch 200 and the cooler 100, the top of the sealing structure 206 is provided with a sealing surface 205 matched with the mounting hole.

[0028] Further, the condensate water outlet 101 is arranged on the bottom side wall of the condenser, and the automatic valve 300 is connected with the condensate water outlet 101 through a pipeline. The automatic valve 300 is selected from an electromagnetic valve or a pneumatic valve.

[0029] Working process: In the normal operation process of the water electrolysis hydrogen production system, the cooler 100 cools the hydrogen (or oxygen), and the generated condensate water gradually accumulates at the bottom of the cooler 100. When the water level of the condensate water rises to the high liquid level set point, the high ball 202 of the "L" shaped liquid level switch rises with the water level, triggering the sensing component inside the "L" shaped liquid level switch, and transmitting a signal to the control system. After receiving the signal, the control system opens the electromagnetic valve (or pneumatic valve) according to the pre-set program, so that the condensate water at the bottom of the cooler 100 starts to be drained through the drainage pipeline. As the condensate water is drained, the water level gradually drops. When the water level falls back to the low liquid level set point, the low ball 203 on the "L" shaped liquid level switch drops with the water level, triggering the sensing component inside the liquid level switch again, and sending a signal to the control system. After receiving the signal, the control system closes the electromagnetic valve (or pneumatic valve), stopping the water drainage. This cycle realizes the automatic, accurate and quantitative drainage of the condensate water in the cooler 100.

[0030] In summary, the utility model discloses through the high / low position float ball of plug-in type " L " shape liquid level switch realizes accurate quantitative drainage, effectively reduces the waste of hydrogen (or oxygen), improves the gas utilization rate, effectively reduces the cost, and the " L " shape liquid level switch is small in size, simple to install, does not need to make the gas cooler greatly transform, also does not need to occupy a large amount of installation space, reduces equipment purchase cost and installation cost, also saves the space occupied due to the increase equipment.

[0031] Wherein, the terms such as "upper", "lower", "left", "right", "front", "rear", "intermediate" and "one" cited in the specification are only for the convenience of clear description, and are not used to limit the scope of the utility model, and the change or adjustment of the relative relationship is also regarded as the scope of the utility model when no substantial change of technical content is made.

[0032] The above embodiments only exemplarily illustrate the principle and effect of the utility model, and are not used to limit the utility model. All equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A cooler condensate automatic discharge device of a water electrolysis hydrogen production system, characterized in that, The application relates to a cooler, an L-shaped liquid level switch and a self-control valve, wherein the self-control valve is arranged at the condensate water outlet of the cooler, the L-shaped liquid level switch is inserted into the bottom of the cooler, the L-shaped liquid level switch comprises a guide rod, a high-position floating ball, a low-position floating ball, a stop ring and a sealing structure, the guide rod is vertically inserted into the bottom of the cooler and is sealingly connected with the cooler through the sealing structure at the bottom of the guide rod, the high-position floating ball and the low-position floating ball are floatingly sleeved on the guide rod, the high-position floating ball and the low-position floating ball are provided with matched sensing components in the guide rod, the sensing components are electrically connected with a control system, and the control system is electrically connected with the self-control valve.

2. The cooler condensate water automatic discharge device of the water electrolysis hydrogen production system according to claim 1, characterized in that, The stop ring is arranged at the top, the middle and the bottom of the guide rod respectively and is used for limiting the activity range of the high-position floating ball and the low-position floating ball.

3. The automatic drain device for condensate water of a cooler of a water electrolysis hydrogen generation system according to claim 1, characterized by, The bottom of the cooler is provided with a mounting hole, and the L-shaped liquid level switch is inserted into the cooler through the mounting hole.

4. The cooler condensate water automatic discharge device of the water electrolysis hydrogen production system according to claim 3, characterized in that, An outer thread is arranged on the outer wall of the sealing structure, and a matched inner thread is arranged on the inner wall of the mounting hole.

5. The automatic drain device for condensate water of a cooler of a water electrolysis hydrogen generation system according to any one of claims 3 to 4, characterized by, A sealing surface of the sealing structure is arranged at the top and matches the sealing of the mounting hole.

6. The cooler condensate water automatic discharge apparatus of the water electrolysis hydrogen production system according to claim 1, characterized by, The condensate water outlet is arranged on the bottom side wall of the condenser.

7. The automatic drain device for condensate water of a cooler of a water electrolysis hydrogen generation system according to claim 1, characterized by, The self-control valve comprises an electromagnetic valve or a pneumatic valve.

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