Adsorption type dryer

Abstract

The utility model relates to the field of hydrogen dehumidification, in particular to an adsorption type dryer which comprises a dryer body and a pipeline system, the dryer body comprises a tank body, a drying assembly is arranged in the tank body, a connecting seat is arranged on the dryer body, and the pipeline system comprises a water pipe, a second air pipe and a first air pipe. According to the hydrogen dryer, hydrogen can be continuously dried through the two dryer bodies, cooling liquid can be injected into the two dryer bodies through the water pipe and the flow dividing pipe after drying is finished, and the two dryer bodies can be cooled through the first branch pipe and the second branch pipe. Hot air can be injected into the dryer body through the first air pipe and the first branch pipe, a drying agent in the dryer body is dried, and the adsorption type hydrogen drying device does not need a cooling coil which needs heat exchange and is low in pressure bearing capacity. Compared with a condensation type drying device, the pressure-bearing and sealing performance of each container, each pipeline and each connecting piece is improved in a leap-type manner.

Description

Technical Field

[0001] The utility model relates to the field of hydrogen dehumidification, and specifically relates to an adsorption dryer. Background Technique

[0002] A dryer is a device that can be used in the hydrogen system of a power plant. Its main function is to remove moisture and humidity from hydrogen. In a power plant, hydrogen is mainly used to cool the generator rotor because hydrogen has high thermal conductivity and low viscosity, which can effectively carry away heat. However, hydrogen must be kept very dry to work effectively. Therefore, a dryer is needed in the hydrogen system to remove moisture from hydrogen and ensure that hydrogen always remains in a dry state to improve the efficiency and safety of the system;

[0003] Existing power plants will use a condensing dryer as the drying equipment for hydrogen. This is because the condensing dryer is suitable for high-humidity environments and has low maintenance costs. Usually, no consumables need to be replaced. The condensing dryer can reduce the gas temperature to condense water vapor into liquid water, thereby separating moisture from the gas. Due to this working principle, the condensing dryer has some inevitable disadvantages. Its disadvantages are that the evaporator is prone to leakage, resulting in refrigerant leakage and affecting the refrigeration effect. Content of the Utility Model

[0004] In view of this, the purpose of the present utility model is to provide an adsorption dryer to solve the technical problem that existing power plants use a condensing dryer as the drying equipment for hydrogen, and its disadvantages are that the evaporator is prone to leakage, resulting in refrigerant leakage and affecting the refrigeration effect, which poses a hidden danger to the safe and stable operation of the generator.

[0005] Based on the above purpose, the present utility model provides an adsorption dryer, which includes two dryer bodies for drying hydrogen. A pipeline system for the flow of gas or liquid is provided outside the dryer body. The dryer body includes a tank body, a drying component is arranged inside the tank body, and connecting seats are fixedly arranged at the upper and lower ends of the dryer body;

[0006] The pipeline system includes a water pipe connected to the connecting seat at the top end of the dryer body and a second gas pipe connected to the connecting seat at the bottom end of the dryer body. A first gas pipe is provided on one side of the water pipe and is communicated with it;

[0007] One end of the water pipe is provided with two shunt pipes for the inlet and outlet of cooling water, and the two shunt pipes are respectively connected to the two dryer bodies. One end of the first gas pipe is provided with two first branch pipes respectively connected to different shunt pipes;

[0008] One end of the second gas pipe is provided with two second branch pipes for the inlet and outlet of hydrogen, and the two second branch pipes are respectively connected to the two dryer bodies.

[0009] Preferably, the drying assembly includes a cover fixed inside the connecting seat. A docking pipe is fixedly arranged on the bottom surface of the cover, and a sealing ring is sleeved around the docking pipe.

[0010] Preferably, a drying pipe is connected to the lower end of the cover. Four clamping blocks are fixedly arranged at equal intervals at the bottom end of the docking pipe, and clamping openings matching the clamping blocks are formed at the upper end of the drying pipe.

[0011] Preferably, the clamping blocks are in a seven - character shape, and clamping grooves for clamping one end of the clamping blocks are formed on the inner wall of the clamping openings.

[0012] Preferably, multiple groups of through - holes are arranged at equal intervals around the axis of the drying pipe.

[0013] Preferably, a bottom cover is arranged at the lower end of the drying pipe, and an installation groove for plugging and connecting with the bottom end of the drying pipe is formed on the surface of the bottom cover.

[0014] Preferably, a pneumatic motor connected to the second branch pipe is fixed on the bottom cover. A coupling is sleeved on the output shaft at one end of the pneumatic motor, and a long shaft is fixedly connected inside the coupling.

[0015] Preferably, a spiral blade is fixedly arranged around the long shaft, and a dial is fixedly arranged at the top end of the long shaft.

[0016] Preferably, a pressure pipe capable of communicating with the internal space is fixedly arranged on the outer wall of the dryer body.

[0017] Preferably, a bottom frame is fixedly connected to the lower end of the dryer body, and a control cabinet located on one side of the dryer body is fixedly arranged on the bottom frame.

[0018] Advantages of the present utility model:

[0019] The present utility model can continuously dry hydrogen through two dryer bodies. After drying is completed, coolant can be injected into the two dryer bodies through a water pipe and a shunt pipe to cool them, avoiding excessive pressure inside the dryer bodies. Hot air can be injected into the dryer bodies through a first air pipe and a first branch pipe to dry the desiccant inside the dryer bodies. The adsorption - type hydrogen drying device does not require cooling coils, which are pipes that require heat exchange and have low pressure - bearing capacity. The pressure - bearing and sealing performance of each container, pipe, and connector is improved by leaps and bounds compared with the condensation - type drying device. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only those of the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0021] Figure 1 is the overall structural schematic diagram of the present utility model;

[0022] Figure 2 is the structural schematic diagram of the pipeline system of the present utility model Figure 1 ;

[0023] Figure 3 is the structural schematic diagram of the pipeline system of the present utility model Figure 2 ;

[0024] Figure 4 is the structural schematic diagram of the cover of the present utility model;

[0025] Figure 5 is the structural schematic diagram of the drying pipe of the present utility model;

[0026] Figure 6 is of the present utility model Figure 5 enlarged view at A;

[0027] Figure 7 is the structural schematic diagram of the long shaft of the present utility model.

[0028] The reference numerals in the figure are:

[0029] 1, dryer body; 11, tank body; 111, connecting seat; 112, pressure pipe; 12, drying component; 121, cover; 1211, docking pipe; 1212, clamping block; 122, sealing ring; 123, drying pipe; 1231, through hole; 1232, bayonet; 124, bottom cover; 1241, installation groove; 125, pneumatic motor; 1251, coupling; 126, long shaft; 1261, spiral blade; 1262, dial; 2, control cabinet; 3, pipeline system; 31, water pipe; 311, shunt pipe; 32, first air pipe; 321, first branch pipe; 33, second air pipe; 331, second branch pipe; 4, chassis. Specific embodiments

[0030] In order to make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with specific embodiments.

[0031] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in this utility model should have the ordinary meanings understood by those with ordinary skills in the field to which this utility model belongs. The "first", "second" and similar words used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "comprising" or "including" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0032] To further understand this utility model, the following will describe this utility model in detail with reference to the accompanying drawings.

[0033] Combined Figures 1 - 3 , this utility model provides an adsorption dryer, which includes two dryer bodies 1 for drying hydrogen. A pipeline system 3 for the flow of gas or liquid is provided outside the dryer body 1. The dryer body 1 includes a tank body 11. A drying component 12 is provided inside the tank body 11. Connecting seats 111 are fixedly provided at the upper and lower ends of the dryer body 1;

[0034] The pipeline system 3 includes a water pipe 31 connected to the connecting seat 111 at the top end of the dryer body 1 and a second gas pipe 33 connected to the connecting seat 111 at the bottom end of the dryer body 1. A first gas pipe 32 is provided on one side of the water pipe 31 and is communicated with it;

[0035] One end of the water pipe 31 is provided with two shunt pipes 311 for the inlet and outlet of cooling water. The two shunt pipes 311 are respectively connected to the two dryer bodies 1. One end of the first gas pipe 32 is provided with two first branch pipes 321 respectively connected to different shunt pipes 311;

[0036] One end of the second gas pipe 33 is provided with two second branch pipes 331 for the inlet and outlet of hydrogen. The two second branch pipes 331 are respectively connected to the two dryer bodies 1;

[0037] In this embodiment, the water pipe 31 can be connected to the cooler, an oil-water filtration tank, an oil-water sedimentation tank, the first air pipe 32 is connected to the air compressor, and solenoid valves for controlling the internal fluid are fixed on the first branch pipe 321, the second branch pipe 331 and the shunt pipe 311. First, hydrogen is injected into the second air pipe 33, and the solenoid valve on one of the first branch pipes 321 is closed, so that hydrogen enters the drying component 12 inside one of the dryer bodies 1 for dehumidification. When one dryer body 1 is in the moisture absorption state, the other dryer body 1 will be in the regeneration state. Therefore, the two dryer bodies 1 can continuously dry hydrogen. After drying, coolant can be injected into the two dryer bodies 1 through the water pipe 31 and the shunt pipe 311 to cool them and prevent the pressure inside the dryer body 1 from being too high. Hot air can be injected into the dryer body 1 through the first air pipe 32 and the first branch pipe 321 to dry the desiccant inside the dryer body 1;

[0038] The oil separator includes a filtration tank and a sedimentation tank, and its function is to filter out oil, water, oil vapor, dust, impurities, etc. in hydrogen, protect the subsequent hydrogen dryer from dust and oil pollution, and reduce the maintenance work of the subsequent hydrogen dryer;

[0039] Furthermore, the principle of hydrogen dehumidification is improved from using an air compressor to change the hydrogen temperature to precipitate moisture to using a desiccant with very strong moisture absorption ability, chemical inertness, and non-toxic characteristics for dehumidification. The dehumidification effect is better, and it is safe and environmentally friendly. The adsorption type hydrogen drying device does not require a cooling coil, a pipe with low heat exchange and pressure-bearing capacity. The pressure-bearing and sealing performance of its various containers, pipes, and connectors has a leapfrog improvement compared to the condensation type drying device.

[0040] Combined with Figure 4 , the drying component 12 includes a cover 121 fixed inside the connection seat 111. A butt joint pipe 1211 is fixedly arranged on the bottom surface of the cover 121, and a sealing ring 122 is sleeved outside the butt joint pipe 1211;

[0041] In this embodiment, both the cover 121 and the sealing ring 122 play a role in sealing the tank body 11. Among them, the cover 121 and the butt joint pipe 1211 can fix the drying component 12 inside the tank body 11 to prevent the drying component 12 from shaking when the dryer body 1 is working.

[0042] Combined with Figure 5 , a drying pipe 123 is connected to the lower end of the cover 121. Four clamping blocks 1212 are fixedly arranged at equal intervals at the bottom end of the butt joint pipe 1211. A clamping notch 1232 matching the clamping blocks 1212 is opened at the upper end of the drying pipe 123. The clamping blocks 1212 are in the shape of a seven, and a clamping groove for clamping one end of the clamping blocks 1212 is opened on the inner wall of the clamping notch 1232;

[0043] In this embodiment, the drying tube 123 can be fixed by connecting the block 1212 of the connecting tube 1211 and the bayonet 1232 at the upper end of the drying tube 123 to prevent the drying tube 123 from shaking. The block 1212 is in the shape of a figure 7. During this process, the block 1212 is first aligned with the bayonet 1232 and inserted, and then the cover 121 is twisted so that the long strip at the corner of one end of the block 1212 can be inserted into the slot opened on the inner wall of the bayonet 1232, thereby completing the fixation.

[0044] Combination Figure 5 The drying tube 123 is provided with a plurality of groups of through holes 1231 around its axis at equal intervals on its periphery;

[0045] In this embodiment, the through holes 1231 on the surface of the drying tube 123 are used to allow the hydrogen outside the drying tube 123 to enter the interior of the drying tube 123 .

[0046] Combination Figure 7 The bottom end of the drying tube 123 is provided with a bottom cover 124, and the surface of the bottom cover 124 is provided with a mounting groove 1241 plugged with the bottom end of the drying tube 123;

[0047] In this embodiment, the bottom cover 124 is used to ensure that the drying tube 123 can maintain a certain degree of sealing, and the bottom cover 124 and the drying tube 123 can be quickly connected through the installation groove 1241 on the surface of the bottom cover 124.

[0048] Combination Figure 7 The bottom cover 124 is fixed with an air motor 125 connected to the second branch pipe 331, and an output shaft at one end of the air motor 125 is sleeved with a coupling 1251, and a long shaft 126 is fixedly connected inside the coupling 1251;

[0049] In this embodiment, when hydrogen enters the second branch pipe 331 , the pneumatic motor 125 can be driven to rotate, and the rotating pneumatic motor 125 can drive the long shaft 126 to rotate synchronously through the coupling 1251 .

[0050] Combination Figure 7 The outer periphery of the long shaft 126 is fixedly provided with a spiral blade 1261, and the top of the long shaft 126 is fixedly provided with a dial plate 1262;

[0051] In this embodiment, the rotating long shaft 126 can drive the spiral blade 1261 to rotate, and the rotating spiral blade 1261 can lift the desiccant located inside the drying tube 123 upward. However, since the desiccant is spherical and the diameter of the spiral blade 1261 is smaller than the inner diameter of the drying tube 123, the desiccant on the periphery will fall down during the process of the spiral blade 1261 lifting the desiccant until it is lifted by the spiral blade 1261. This can cause the desiccant inside the drying tube 123 to roll, thereby increasing the contact area with the water vapor in the hydrogen, thereby improving the dehumidification effect.

[0052] Combined with Figure 3 , a pressure pipe 112 that can communicate with the internal space is fixedly arranged on the outer wall of the dryer body 1;

[0053] In this embodiment, a pressure detection instrument can be installed on the pressure pipe 112 to monitor the pressure inside the tank body 11 in real time.

[0054] Combined with Figure 1 , a chassis 4 is fixedly connected to the lower end of the dryer body 1, and a control cabinet 2 located on one side of the dryer body 1 is fixedly arranged on the chassis 4;

[0055] In this embodiment, the control cabinet 2 is used to control the opening and closing of each solenoid valve located on the first branch pipe 321, the second branch pipe 331 and the shunt pipe 311.

[0056] Those of ordinary skill in the art should understand that the discussion of any above embodiment is only exemplary, and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, and they are not provided in detail for the sake of brevity.

[0057] The present invention aims to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An adsorption dryer, comprising two dryer bodies (1) for drying hydrogen, the outer periphery of the dryer bodies (1) being provided with a pipeline system (3) for gas or liquid circulation, characterized in that: The dryer body (1) comprises a tank body (11), a drying assembly (12) is arranged inside the tank body (11), and connecting seats (111) are fixedly arranged at the upper and lower ends of the dryer body (1); The pipeline system (3) comprises a water pipe (31) connected to a top connection seat (111) of the dryer body (1) and a second air pipe (33) connected to a bottom connection seat (111) of the dryer body (1), and a first air pipe (32) communicating with the water pipe (31) is provided on one side of the water pipe (31); One end of the water pipe (31) is provided with two branch pipes (311) for the inflow and outflow of cooling water, the two branch pipes (311) are respectively connected to the two dryer bodies (1), and one end of the first air pipe (32) is provided with two first branch pipes (321) respectively connected to different branch pipes (311); Two second branch pipes (331) for the inlet and outlet of hydrogen are provided at one end of the second gas pipe (33), and the two second branch pipes (331) are respectively connected to the two dryer bodies (1).

2. The adsorption dryer according to claim 1, characterized in that: The drying component (12) comprises a sealing cover (121) fixed inside the connecting seat (111), a butt joint pipe (1211) is fixedly arranged on the bottom surface of the sealing cover (121), and a sealing ring (122) is sleeved on the outer periphery of the butt joint pipe (1211).

3. An adsorption dryer according to claim 2, characterized in that: The lower end of the sealing cover (121) is connected to a drying tube (123), four clamping blocks (1212) are fixed at equal intervals on the bottom end of the butt-joint tube (1211), and a clamping port (1232) matching the clamping block (1212) is provided on the upper end of the drying tube (123).

4. An adsorption dryer according to claim 3, characterized in that: The clamping block (1212) is in the shape of a figure seven, and the inner wall of the clamping opening (1232) is provided with a clamping groove for clamping one end of the clamping block (1212).

5. The adsorption dryer according to claim 3, characterized in that: The drying tube (123) is provided with a plurality of groups of through holes (1231) at equal intervals around its axis on its periphery.

6. An adsorption dryer according to claim 5, characterized in that: A bottom cover (124) is provided at the lower end of the drying tube (123), and a mounting groove (1241) plugged into the bottom end of the drying tube (123) is provided on the surface of the bottom cover (124).

7. An adsorption dryer according to claim 6, characterized in that: A pneumatic motor (125) connected to the second branch pipe (331) is fixed on the bottom cover (124); a coupling (1251) is sleeved on an output shaft at one end of the pneumatic motor (125); and a long shaft (126) is fixedly connected inside the coupling (1251).

8. An adsorption dryer according to claim 7, characterized in that: A spiral blade (1261) is fixedly arranged on the periphery of the long shaft (126), and a paddle (1262) is fixedly arranged on the top of the long shaft (126).

9. The adsorption dryer according to claim 1, characterized in that: The outer wall of the dryer body (1) is fixedly provided with a pressure pipe (112) which can communicate with the internal space thereof.

10. The adsorption dryer according to claim 1, characterized in that: The lower end of the dryer body (1) is fixedly connected to a base frame (4), and a control cabinet (2) located on one side of the dryer body (1) is fixedly arranged on the base frame (4).

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