CN219302331U - Adsorption type hydrogen dryer and detection device - Google Patents

Abstract

The utility model discloses an adsorption type hydrogen dryer and a detection device, which comprise a main body assembly, wherein the main body assembly comprises a base, a drying tower, an automatic switching valve and an air inlet and outlet pipe; the drying component comprises an adsorption box, a circulating fan, a cooling box, a water-vapor separator, a control valve, a drain valve and a water tank; and the detection mechanism comprises a hydrogen dew point detector and a hydrogen leakage alarm. The hydrogen dryer of the utility model continuously operates for 24 hours, the condensation type dehumidification mode is changed into the adsorption dehumidification mode of the active alumina drying agent, the leakage of hydrogen is reduced, the drying effect is good, condensed water can be automatically discharged during regeneration of the drying tower, the built-in circulating fan solves the problem that the hydrogen dryer trips frequently due to the fact that the flow speed and the flow rate of the hydrogen in the generator are small and the temperature controller cannot detect signals during the shutdown period of the unit, and the detection device can control the dew point temperature to be about minus 15 ℃ and effectively control and prevent the occurrence of the problem of leaked hydrogen.

Description

Adsorption type hydrogen dryer and detection device

Technical Field

The utility model relates to the technical field of hydrogen drying of generators, in particular to an adsorption type hydrogen dryer and a detection device.

Background

The existing hydrogen dryer adopts a condensation type dehumidification technology, and has the following problems when drying hydrogen:

(1) The requirements on the working environment are high, the device is sensitive to the temperature, a large amount of cooling water is required to be consumed, the temperature difference between the inlet and outlet water of the stator cooling water is small, fault tripping occurs in the refrigerating process of the hydrogen dryer, the drying effect is not obvious, especially, during the shutdown period of a unit, hydrogen in the generator flows only by virtue of the circulating explosion-proof fan of the generator, and the flow is too small to meet the requirements, so that the hydrogen temperature controller cannot detect signals, and the hydrogen dryer frequently trips.

(2) The pipeline leaks hydrogen, the leakage point is not clear, and the dew point temperature is not detected enough. The requirements of the generator on preventing explosion accidents of a hydrogen system, preventing leakage of hydrogen and the like cannot be met.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the utility model, which should not be used to limit the scope of the utility model.

The present utility model has been made in view of the above-described problems with the conventional condensing hydrogen dryer.

Therefore, one of the purposes of the utility model is to solve the problems that the temperature difference of the cooling water of the stator in and out is small, the fault trip occurs in the refrigerating process of the hydrogen dryer, the drying effect is not obvious, the hydrogen in the generator flows only by virtue of the circulating explosion-proof fan of the generator, and the flow is too small to meet the requirement.

In order to solve the technical problems, the utility model provides the following technical scheme: the adsorption type hydrogen dryer comprises a main body assembly, wherein the main body assembly comprises a base, a drying tower arranged at the top end of the base, a hydrogen inlet pipe arranged at the bottom end of the drying tower, an automatic switching valve arranged on the hydrogen inlet pipe, a hydrogen inlet arranged at one side of the automatic switching valve, a hydrogen outlet pipe arranged at the top end of the drying tower, a stop valve arranged on the hydrogen outlet pipe and a hydrogen outlet arranged at the top end of the hydrogen outlet pipe; the method comprises the steps of,

the drying component comprises an adsorption box arranged in the drying tower, a circulating fan arranged at the bottom end of the adsorption box, a baffle arranged at the top of the adsorption box, a cooling box arranged at the top of the baffle, a water-vapor separator arranged at the top of the cooling box, a guide return pipe arranged at one side of the water-vapor separator, a control valve arranged at the top of the water-vapor separator, a drain valve arranged at the other side of the water-vapor separator and a water tank arranged at one side of the drying tower.

As a preferable embodiment of the adsorption type hydrogen dryer of the present utility model, wherein: the base comprises a base plate, upright posts arranged on the base plate and supporting plates arranged between the upright posts.

As a preferable embodiment of the adsorption type hydrogen dryer of the present utility model, wherein: the drying tower comprises a first drying tower and a second drying tower which are arranged at the top of the supporting plate, and the internal structures of the first drying tower and the second drying tower are the same.

As a preferable embodiment of the adsorption type hydrogen dryer of the present utility model, wherein: the automatic switching valve is characterized in that two ends of the automatic switching valve are connected with the hydrogen inlet pipe and the hydrogen inlet port through flanges, the hydrogen outlet pipe is connected with the drying tower through flanges, and the stop valve comprises a first stop valve arranged between the first drying tower and the hydrogen outlet port and a second stop valve arranged between the second drying tower and the hydrogen outlet port.

As a preferable embodiment of the adsorption type hydrogen dryer of the present utility model, wherein: the adsorption box comprises a drying agent and a heating plate surrounding the outer side of the drying agent, and the internal structure of the adsorption box is honeycomb-shaped.

As a preferable embodiment of the adsorption type hydrogen dryer of the present utility model, wherein: the baffle, the cooling box, the water-vapor separator and the control valve are connected through a pipeline, and the guide return pipe is connected between the water-vapor separator and the baffle.

As a preferable embodiment of the adsorption type hydrogen dryer of the present utility model, wherein: the water tank is connected with the drain valve through a pipeline, and the water tank is connected with the drying tower through a bracket.

In summary, the present utility model includes at least one of the following beneficial effects: the existing condensing type drying mode is modified into drying agent drying, drying effect is improved, a forced circulation fan is added, and the problem that equipment trips due to difficult detection of a temperature controller with the unqualified hydrogen flow during unit outage is solved.

The utility model also aims to solve the problems of leakage of hydrogen gas from the pipeline, undefined leakage point and insufficient detection of dew point temperature.

In order to solve the technical problems, the utility model provides the following technical scheme: the detection device comprises the adsorption type hydrogen dryer, and further comprises a detection mechanism, wherein the detection mechanism comprises a hydrogen dew point detector and a hydrogen leakage alarm.

As a preferred embodiment of the detection device of the present utility model, wherein: the hydrogen dew point detector is arranged at the joint of the top end of the drying tower and the hydrogen outlet pipe.

As a preferred embodiment of the detection device of the present utility model, wherein: the hydrogen leakage alarm comprises an alarm controller, a hydrogen detection sensor and a fixing frame, wherein the alarm controller and the hydrogen detection sensor are arranged on the shell of the drying tower, the fixing frame is used for fixing the hydrogen detection sensor on the hydrogen inlet pipe, and the hydrogen detection sensor is arranged at the joint of the top of the drying tower and the hydrogen outlet pipe and the joint of the automatic switching valve and the hydrogen inlet pipe.

In summary, the present utility model includes at least one of the following beneficial effects: the method has the advantages that the dew point temperature of the hydrogen is detected, the dew point temperature is maintained at about minus 15 ℃, the temperature and flow requirements of cooling water are reduced, the interface is monitored, the hydrogen leakage is prevented, the safety of a hydrogen system is ensured, and the leakage and explosion prevention requirements of a generator are met.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

FIG. 1 is a schematic view of the main body assembly of the adsorption hydrogen dryer of the present utility model;

FIG. 2 is a schematic diagram of the drying assembly of the adsorption hydrogen dryer of the present utility model;

FIG. 3 is a schematic diagram of the structure of the adsorption tank of the drying assembly of the adsorption hydrogen dryer of the present utility model;

FIG. 4 is a schematic diagram of the structure of the detecting device of the present utility model;

FIG. 5 is a schematic diagram showing the overall structure of the adsorption type hydrogen dryer and the detecting apparatus according to the present utility model.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Further, in describing the embodiments of the present utility model in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present utility model. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.

Example 1

Referring to fig. 1, there is provided a schematic structural diagram of an adsorption type hydrogen dryer, the adsorption type hydrogen dryer includes a main body assembly 100, the main body assembly 100 includes a base 101, a drying tower 102 is provided at the top of the base 101, a hydrogen inlet pipe 103 is provided at the bottom end of the side wall of the drying tower 102, an automatic switching valve 104 is provided on the hydrogen inlet pipe 103, a hydrogen inlet 105 connected with an engine is provided at one side of the automatic switching valve 104, a hydrogen outlet pipe 106 is provided at the top end of the drying tower 102, a stop valve 107 and a hydrogen outlet 108 are provided on the hydrogen outlet pipe 106, and the stop valve 107 includes a first stop valve 107a provided between the first drying tower 102a and the hydrogen outlet 108 and a second stop valve 107b provided between the second drying tower 102b and the hydrogen outlet 108.

The drying assembly 200, the drying assembly 200 includes an adsorption tank 201 for adsorbing water vapor in the drying tower 102, a circulating fan 202 is arranged at the bottom of the drying tank 201, a partition 203 is arranged at the top of the adsorption tank 201, a cooling tank 204 is arranged at the top of the partition 203, a water vapor separator 205 is arranged at the top of the cooling tank 204, a return pipe 206, a control valve 207 and a drain valve 208 are connected with the water vapor separator 205, and a water tank 209 is arranged at one side of the drying tower 102.

Specifically, the base 101 includes a chassis 101a, a column 101b on the chassis 101a, and a supporting plate 101c between the columns 101b, and the drying tower 102 is disposed on the column 101b and the supporting plate 101c, and the drying tower 102 is divided into a first drying tower 102a and a second drying tower 102b, which have the same internal structure.

Further, two ends of the automatic switching valve 104 are connected with the hydrogen inlet pipe 103 and the hydrogen inlet 105 through flanges, and the drying tower 102 is connected with the hydrogen outlet pipe 106 through flanges.

The operation process comprises the following steps: hydrogen in the engine enters the hydrogen inlet pipe 103 through the hydrogen inlet 105, enters the drying tower 102 through the hydrogen inlet pipe 103 for drying, and enters the generator through the hydrogen outlet pipe 106 for working after being dried through the adsorption box 201, and the drying effect is greatly improved through the drying agent adsorption drying and dehumidification.

Example 2

Referring to fig. 2-3, this embodiment differs from the first embodiment in that: the adsorption tank 201 includes a desiccant 201a and a heating plate 201b surrounding the outside of the desiccant 201a, the inside of the adsorption tank 201 is provided in a honeycomb shape, the desiccant 201a is filled inside, and the desiccant 201a is selected as activated alumina.

Specifically, the partition 203, the cooling tank 204, the water-vapor separator 205 and the control valve 207 in the drying tower 102 are all connected through pipelines, the guide pipe 206 is arranged on one side of the water-vapor separator 205 and connected between the water-vapor separator 205 and the partition 203, hydrogen is sent into the adsorption tank 201, the drain valve 208 is arranged on the other side of the water-vapor separator 205, the drain valve 208 is connected with the water tank 209 outside the drying tower 102 through a pipeline, the water tank 209 is surrounded by a bracket 209a, and the water tank 209 is connected to the drying tower 102 through the bracket 209 a.

The rest of the structure is the same as in embodiment 1.

The operation process comprises the following steps: the hydrogen drying tower adopts double-tower adsorption, two drying towers 102 are adopted, when one tower adsorbs and dries, the other tower regenerates, namely the regeneration of the active alumina of the drying agent 201a is realized, after the adsorption period of the drying agent 201a is finished, the working states of the two drying towers 102 are switched through the automatic switching valve 104, the drying tower 102 which is originally used for carrying out adsorption and drying starts to regenerate, when regeneration is realized, the heating plate 201b positioned in the adsorption box 201 starts to heat, water in the drying agent 201a in the heating plate 201b evaporates to become water vapor, the built-in circulating fan 202 works, residual hydrogen in the drying tower 102 flows through the inside of the drying agent 201a, the water vapor evaporated in the drying agent 201a is taken away, the water vapor is cooled through the cooling box 204, the water vapor separated by the water vapor separator 205 flows into the water tank 209 outside the drying tower 102, the hydrogen separated by the water vapor separator 205 flows back into the adsorption box 201 through the guide pipe 206 for regeneration again, the uninterrupted dehumidification within 24 hours is ensured, and the working efficiency of the dryer can be automatically discharged.

Example 3

Referring to fig. 4-5, the present embodiment provides a schematic structural diagram of a detection device, a detection mechanism 300, and the detection mechanism 300 includes a hydrogen dew point detector 301 and a hydrogen leakage alarm 302.

Specifically, the hydrogen dew point detector 301 is disposed at the connection between the top of the drying tower 102 and the hydrogen outlet pipe 106, and detects the dew point temperature after the drying of hydrogen, so that the hydrogen dew point can be continuously displayed, the data can be conveniently recorded, and the dew point temperature is ensured to be maintained at about-15 ℃.

Further, the hydrogen leakage alarm 302 is composed of an alarm controller 302a and a hydrogen detection sensor 302b, the density specific gravity of the detected hydrogen is smaller than that of air, the hydrogen detection sensor 302b is installed above a possible leakage position, and the sensor position is downward, so that the hydrogen detection sensor 302b is arranged at the connection position of the top of the drying tower 102 and the hydrogen outlet pipe 106 and the connection position of the automatic switching valve 104 and the hydrogen inlet pipe 103, the concentration of hydrogen in the air can be effectively detected, and the hydrogen detection sensor 302b is fixed on the hydrogen inlet pipe 103 through a fixing frame 302 c.

The rest of the structure is the same as in embodiment 2.

The operation process comprises the following steps: when the hydrogen is dried and output through the hydrogen outlet pipe 106, the hydrogen dew point detector 301 can detect the dew point temperature of the hydrogen, the dew point temperature is controlled to be about minus 15 ℃, when the hydrogen leaks at the pipeline connection part, the hydrogen dew point detector 301 detects that the hydrogen concentration exceeds the standard, the detected hydrogen concentration is converted into an electric signal and is transmitted to the alarm controller 302a positioned on the shell of the drying tower 102, when the hydrogen concentration reaches the early warning amount, the alarm controller 302a can give out an alarm sound to remind a worker to process, and the hydrogen dew point temperature can be effectively controlled through the hydrogen dew point detector 301 and the hydrogen leakage alarm 302, and the requirements of hydrogen leakage prevention and explosion prevention and the like are met.

It is important to note that the construction and arrangement of the present application as shown in a variety of different exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present utility model. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility models. Therefore, the utility model is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Furthermore, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the utility model, or those not associated with practicing the utility model).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.

It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims (10)

1. An adsorption type hydrogen dryer, which is characterized in that: comprising the steps of (a) a step of,

the main body assembly (100) comprises a base (101), a drying tower (102) arranged at the top end of the base (101), a hydrogen gas inlet pipe (103) arranged at the bottom end of the drying tower (102), an automatic switching valve (104) arranged on the hydrogen gas inlet pipe (103), a hydrogen gas inlet (105) arranged at one side of the automatic switching valve (104), a hydrogen gas outlet pipe (106) arranged at the top end of the drying tower (102), a stop valve (107) arranged on the hydrogen gas outlet pipe (106) and a hydrogen gas outlet (108) arranged at the top end of the hydrogen gas outlet pipe (106); the method comprises the steps of,

drying component (200), including set up in adsorption tank (201) of drying tower (102) inside, set up in circulating fan (202) of adsorption tank (201) bottom, set up baffle (203) at adsorption tank (201) top, set up in cooling tank (204) at baffle (203) top, set up in vapor separator (205) at cooling tank (204) top, set up in guide return pipe (206) of vapor separator (205) one side, set up in control valve (207) at vapor separator (205) top, set up in drain valve (208) of vapor separator (205) opposite side and set up in water tank (209) of drying tower (102) one side.

2. The adsorption hydrogen dryer of claim 1, wherein: the base (101) comprises a base plate (101 a), upright posts (101 b) arranged on the base plate (101 a), and supporting plates (101 c) arranged between the upright posts (101 b).

3. The adsorption hydrogen dryer of claim 2, wherein: the drying tower (102) comprises a first drying tower (102 a) and a second drying tower (102 b) which are arranged at the top of the supporting plate (101 c), and the internal structures of the first drying tower (102 a) and the second drying tower (102 b) are the same.

4. The adsorption hydrogen dryer of claim 3, wherein: the automatic switching valve (104) is characterized in that two ends of the automatic switching valve (104) are connected with the hydrogen inlet pipe (103) and the hydrogen inlet port (105) in a flange connection mode, the hydrogen outlet pipe (106) is connected with the drying tower (102) in a flange connection mode, and the stop valve (107) comprises a first stop valve (107 a) arranged between the first drying tower (102 a) and the hydrogen outlet port (108) and a second stop valve (107 b) arranged between the second drying tower (102 b) and the hydrogen outlet port (108).

5. The adsorption hydrogen dryer of claim 1, wherein: the adsorption box (201) comprises a drying agent (201 a), a heating plate (201 b) surrounding the outside of the drying agent (201 a), and the internal structure of the adsorption box (201) is arranged in a honeycomb shape.

6. The adsorption hydrogen dryer of claim 5, wherein: the separator (203), the cooling tank (204), the water-vapor separator (205) and the control valve (207) are connected through pipelines, and the guide return pipe (206) is connected between the water-vapor separator (205) and the separator (203).

7. The adsorption hydrogen dryer of claim 6, wherein: the water tank (209) is connected with the drain valve (208) through a pipeline, and the water tank (209) is connected with the drying tower (102) through a bracket (209 a).

8. A detection apparatus comprising the adsorption type hydrogen dryer according to any one of claims 1 to 7, further comprising,

and the detection mechanism (300) comprises a hydrogen dew point detector (301) and a hydrogen leakage alarm (302).

9. The detection apparatus according to claim 8, wherein: the hydrogen dew point detector (301) is arranged at the joint of the top end of the drying tower (102) and the hydrogen outlet pipe (106).

10. The detection apparatus according to claim 8, wherein: the hydrogen leakage alarm (302) comprises an alarm controller (302 a) arranged on a shell of the drying tower (102), a hydrogen detection sensor (302 b) and a fixing frame (302 c) for fixing the hydrogen detection sensor (302 b) on the hydrogen inlet pipe (103), wherein the hydrogen detection sensor (302 b) is arranged at the joint of the top of the drying tower (102) and the hydrogen outlet pipe (106) and the joint of the automatic switching valve (104) and the hydrogen inlet pipe (103).

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