Pressure equalizing adjusting device of hydrogen production adsorption tower

Abstract

The utility model discloses a pressure equalizing adjusting device of a hydrogen production adsorption tower, and relates to the technical field of hydrogen production adsorption towers. The pressure equalizing adjusting device of the hydrogen production adsorption tower comprises a hollow shell with an opening in the rear end, a controller is fixedly connected to the lower end in the shell, a display screen is fixedly connected to the interior of the upper end of the front surface of the shell, and two three-way pipelines are arranged at the upper end in the shell; the left end and the right end of the three-way pipeline are fixedly connected with the outer wall of the shell, an electromagnetic valve is fixedly connected to the horizontal section of the three-way pipeline and located on the right side of the turning position, and an electromagnetic proportional valve is fixedly connected to the right end of the turning section of the three-way pipeline. And the controller is electrically connected with the display screen, the electromagnetic valve, the electromagnetic proportional valve and the pressure sensor in the adsorption tower. According to the pressure-equalizing adjusting device for the hydrogen production adsorption tower, plc control equipment and a pipeline control system are integrated together, and the internal pressure can be adjusted and controlled only through pipeline connection.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrogen production adsorption tower technical field, concretely is a kind of hydrogen production adsorption tower pressure equalizing regulating device. BACKGROUND

[0002] Hydrogen production adsorption tower is a kind of key equipment for hydrogen separation and purification, its working principle includes two processes of adsorption and desorption: in adsorption stage, impurities are captured by adsorbent;In desorption stage, impurities are released by decompression or heating, and adsorbent is regenerated.Adsorption tower is usually composed of pressure-resistant tower body, adsorbent (such as molecular sieve, activated carbon) and automatic control system, and is widely used in petrochemical industry, oil refining, ammonia production and hydrogen energy field, with the characteristics of high efficiency and high automation, but the equipment and maintenance cost is higher.Hydrogen production adsorption tower pressure equalizing regulating device is a key component for balancing pressure during adsorption tower switching, to ensure the stable operation of system, balance the pressure in adsorption tower, avoid pressure fluctuation, reduce the energy consumption of gas compression or decompression, and prevent pressure mutation from causing damage to adsorbent and tower body.The existing hydrogen production adsorption tower pressure equalizing regulating device is mostly controlled manually or by plc, and manual control cannot accurately control pressure balance, is easy to cause pressure fluctuation, has slow response speed and poor pressure equalizing effect, and plc automatic control needs to lay complex pipelines and control lines, so it is more troublesome to use, thus a hydrogen production adsorption tower pressure equalizing regulating device is designed to solve the above problems. SUMMARY

[0003] (I) technical problem solved

[0004] In view of the deficiencies of prior art, the utility model provides a kind of hydrogen production adsorption tower pressure equalizing regulating device, solve the existing manual control difficult to accurately control pressure balance, it is easy to cause pressure fluctuation, response speed is slow and the problem of poor pressure equalizing effect, and plc automatic control needs to lay complex pipelines and control lines, and it is more troublesome to use.

[0005] (II) technical scheme

[0006] To achieve the above object, the utility model is realized by the following technical scheme:

[0007] The utility model provides a kind of hydrogen production adsorption tower pressure equalizing regulating device, comprising: the hollow shell with rear end opening, the controller is fixedly connected in the lower end inside the shell, the display screen is fixedly connected in the upper end inside the front surface of the shell, two three-way pipes are provided in the upper end inside the shell, the left and right ends of the three-way pipe are fixedly connected with the outer wall of shell, the horizontal section of the three-way pipe is fixedly connected with solenoid valve at the right side of bend, the right end of the bend section of the three-way pipe is fixedly connected with electromagnetic proportional valve, the controller is electrically connected between display screen, solenoid valve, electromagnetic proportional valve and adsorption tower internal pressure sensor.

[0008] Preferably, the upper end of the shell is fixedly connected with an alarm on the front side, and the alarm is electrically connected with the controller.

[0009] Preferably, the upper end of the shell is fixedly connected with a state display lamp on the left and right sides, and the state display lamp is electrically connected with the controller.

[0010] Preferably, the left and right sides of the shell are provided with a heat dissipation groove, and the inner upper end of the shell is fixedly connected with a hydrogen content sensor, and the hydrogen content sensor is electrically connected with the controller.

[0011] Preferably, the left and right sides of the tee pipe are connected with flared connectors.

[0012] Preferably, the outer side of the controller is connected with a baffle between the inner lower end of the shell, and the lower end of the heat dissipation groove is higher than the position of the upper end of the baffle.

[0013] Preferably, the inner surface and the outer surface of the shell are coated with an anti-oxidation paint.

[0014] (Three) beneficial effects

[0015] The utility model provides a kind of hydrogen production adsorption tower pressure equalization adjusting device, compared with prior art, at least have following beneficial effects:

[0016] The hydrogen production adsorption tower pressure equalization adjusting device integrates plc control equipment and pipeline control system together, and only needs to be connected by pipeline to regulate and control internal pressure. BRIEF DESCRIPTION OF DRAWINGS

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

[0018] Figure 2 It is the rear side view of the utility model;

[0019] Figure 3 It is the sectional view of the utility model;

[0020] Figure 4 It is the internal structure diagram of the utility model;

[0021] Figure 5 It is the internal rear side view of the utility model.

[0022] In the drawing: 1, shell;2, controller;3, display screen;4, tee pipe;5, electromagnetic valve;6, electromagnetic proportional valve;21, alarm;22, state display lamp;23, heat dissipation groove;24, hydrogen content sensor;25, flared connector;26, baffle; DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0024] Please refer to Figures 1-5 The present application provides a technical solution: a hydrogen production adsorption tower pressure equalization adjusting device, comprising: a hollow shell 1 with an open rear end, a controller 2 fixedly connected to the lower end inside the shell 1, a display screen 3 fixedly connected to the upper end inside the front surface of the shell 1, two three-way pipes 4 provided on the upper end inside the shell 1, the left and right ends of the three-way pipes 4 being fixedly connected to the outer wall of the shell 1, an electromagnetic valve 5 fixedly connected to the horizontal section of the three-way pipes 4 on the right side of the bend, an electromagnetic proportional valve 6 fixedly connected to the right end of the bent section of the three-way pipes 4, and the controller 2 being electrically connected to the display screen 3, the electromagnetic valve 5, the electromagnetic proportional valve 6, and the adsorption tower internal pressure sensor.

[0025] In use, the hydrogen discharge ends of the two hydrogen production adsorption towers are connected to the interfaces of the two three-way pipes 4 on the left side, the outlet of the horizontal pipeline on the right side is connected to the interface of the hydrogen tank, and the interface of the turning pipeline on the right upper end is connected to the heavy gas and mixed gas inlet of the other hydrogen production adsorption tower. After installation, the interfaces of the two hydrogen production adsorption tower internal pressure sensors are connected to the digital signal interface of the controller 2 through the slotting at the lower end of the shell 1, and the controller 2 is connected to the computer through a data line. The values of the pid control method are filled in the data in the controller 2, wherein the controlled variable is the pressure difference between the two adsorption towers, the target value of the pressure difference is 0, and the deviation between the current pressure difference and the set value. Then, the opening and closing degree of the electromagnetic proportional valve 6 is controlled by the size of the output value. When starting, the A tower is connected to the upper three-way pipe 4, the B tower is connected to the lower three-way pipe 4, the A tower is adsorbed, the B tower is analyzed or regenerated, the electromagnetic valve 5 of the upper three-way pipe 4 is opened at this time, the electromagnetic proportional valve 6 is closed, the electromagnetic valve 5 of the lower three-way pipe 4 is closed, and the electromagnetic proportional valve 6 is closed. In the pressure equalization stage, the electromagnetic valve 5 of the upper three-way pipe 4 is closed, the electromagnetic proportional valve 6 is opened, the electromagnetic valve 5 of the lower three-way pipe 4 is closed, and the electromagnetic proportional valve 6 of the lower three-way pipe 4 is closed. The opening degree of the electromagnetic proportional valve 6 is controlled by the output value of the pid control method. When the pressures of the two hydrogen production adsorption towers are the same, the electromagnetic proportional valve 6 is closed, the B tower is adsorbed, the A tower is analyzed or regenerated, and the states of the two groups of electromagnetic valves 5 are opposite. The above steps are repeated.

[0026] As Figures 1-5As shown in the utility model embodiment provides an implementation, based on above implementation, the upper end front side of shell 1 is fixedly connected with alarm 21, alarm 21 and controller 2 between electric connection.

[0027] The above structure can be analyzed to know that when the pressure suddenly reduces or suddenly increases, the alarm 21 is started when exceeding the normal value, reminding the staff to check.

[0028] As Figures 1-5 The utility model embodiment provides an implementation, based on above implementation, the upper end of shell 1 is fixedly connected with state display lamp 22 on the left and right sides, and the state display lamp 22 and controller 2 are electrically connected.

[0029] The above structure can be analyzed to know that the state display lamp 22 is connected with two hydrogen production adsorption towers respectively, and the lamp is green during adsorption, and red during analysis or regeneration, to help observe the current state.

[0030] As Figures 1-5 The utility model embodiment provides an implementation, based on above implementation, the left and right sides of shell 1 are provided with heat dissipation grooves 23, the left side of the upper end inside shell 1 is fixedly connected with hydrogen content sensor 24, and the hydrogen content sensor 24 and controller 2 are electrically connected.

[0031] The above structure can be analyzed to know that the heat dissipation groove 23 can help the internal equipment to cool down, and the surrounding air is penetrated into the inside of shell 1, the hydrogen content sensor 24 detects the air, and the alarm 21 is started when exceeding the normal value.

[0032] As Figures 1-5 The utility model embodiment provides an implementation, based on above implementation, the left and right sides of tee pipe 4 are connected with flared connectors 25.

[0033] The above structure can be analyzed to know that the flared connector 25 can be conveniently connected with the hydrogen production adsorption tower, and the stability after connection is ensured.

[0034] As Figures 1-5 The utility model embodiment provides an implementation, based on above implementation, the outside of controller 2 and the lower end inside shell 1 are connected with baffle 26, and the lower end of heat dissipation groove 23 is higher than the position of the upper end of baffle 26.

[0035] The above structure can be analyzed to know that the baffle 26 can isolate the controller 2 from the outside, prevent rainwater from entering the inside of controller 2, and cause the damage of equipment.

[0036] As Figures 1-3As shown, the embodiment of the utility model provides a kind of implementation, based on above implementation, the inner surface and outer surface of the shell 1 are coated with anti-oxidation paint.

[0037] The analysis above structure can know, the anti-oxidation paint coated on the inner surface and outer surface of shell 1, can reduce the oxidation, corrosion of shell 1, prolong service life.

[0038] It should be noted that, in this paper, such as first and second relationship terms such as only to distinguish one entity or operation from another entity or operation, and does not necessarily require or imply that there is any such actual relationship or order between the entity or operation.And, the term "include", "contain" or any other variant is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the inherent elements of such process, method, article or equipment.

[0039] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A hydrogen production adsorption column pressure equalization regulating device, characterized in that, Include: The shell (1) is internally hollow and open at the rear end, the lower end of the shell (1) is fixedly connected with the controller (2), the upper end of the front surface of the shell (1) is fixedly connected with the display screen (3) inside, the upper end of the shell (1) is provided with two three-way pipes (4), the left and right ends of the three-way pipe (4) are fixedly connected with the outer wall of the shell (1), the horizontal section of the three-way pipe (4) is fixedly connected with the electromagnetic valve (5) at the right side of the bend, the right end of the bend section of the three-way pipe (4) is fixedly connected with the electromagnetic proportional valve (6), the controller (2) is electrically connected with the display screen (3), the electromagnetic valve (5), the electromagnetic proportional valve (6) and the adsorption tower internal pressure sensor.

2. The hydrogen production and adsorption column pressure equalization device according to claim 1, characterized in that: The upper front side of the shell (1) is fixedly connected with the alarm (21), and the alarm (21) and the controller (2) are electrically connected.

3. The hydrogen production and adsorption column pressure equalization device of claim 1, wherein: The upper left and right sides of the shell (1) are fixedly connected with the state display lamp (22), and the state display lamp (22) and the controller (2) are electrically connected.

4. The hydrogen production and adsorption column pressure equalization device of claim 1, wherein: The left and right sides of the shell (1) are provided with heat dissipation grooves (23), the upper left side of the shell (1) is fixedly connected with the hydrogen content sensor (24), and the hydrogen content sensor (24) and the controller (2) are electrically connected.

5. The hydrogen production and adsorption column pressure equalization device of claim 1, wherein: The left and right sides of the three-way pipe (4) are connected with the flared connector (25).

6. The hydrogen production and adsorption column pressure equalization device of claim 4, wherein: The outer side of the controller (2) is connected with the baffle (26) between the lower end of the shell (1) inside, and the lower end of the heat dissipation groove (23) is higher than the position of the upper end of the baffle (26).

7. The hydrogen production and adsorption column pressure equalization device of claim 1, wherein: The inner surface and the outer surface of the shell (1) are coated with anti-oxidation paint.

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