CN116221612A - A hydrogen compressor self-cooling water tank - Google Patents

Abstract

The invention discloses a self-cooling water tank for a hydrogen compressor, comprising: a box body, which is arranged horizontally and horizontally, and the box body is used to store cooling liquid; There is a liquid inlet; the liquid discharge port and the liquid inlet are connected through a return pipe, and a one-way valve is arranged on the return pipe to allow the cooling liquid to flow into the liquid inlet from the return pipe through the liquid discharge port; multiple partitions , which is set in the box, for any two adjacent partitions, one end of one partition is connected to the inner top of the box, the other end is separated from the inner top of the box by a certain distance, and one end of the other partition is connected to the box There is a certain distance between the other end and the inner top of the box; and a plurality of flow holes are opened on the partition. The invention can greatly prolong the flow path of the cooling liquid, increase the flowing cooling time of the cooling liquid, thereby improving the cooling efficiency and the uniformity of cooling.

Description

A hydrogen compressor self-cooling water tank

technical field

The invention relates to the field of a hydrogen compressor self-cooling water tank. More specifically, the present invention relates to a hydrogen compressor self-cooling water tank.

Background technique

Hydrogen refueling station is a gas station that provides hydrogen for hydrogen fuel cell vehicles. At present, the hydrogen supplied by domestic hydrogen refueling stations is mainly high-pressure hydrogen. During the preparation process of high-pressure gas, hydrogen needs to be compressed by a hydrogen compressor. The compressor will generate a lot of heat. Most of the traditional processing methods are to install heat dissipation fins outside the compressor. The heat dissipation method is single and the heat dissipation effect is limited. At present, almost all domestic and foreign countries use water-cooling methods to cool the heating positions in the hydrogen compressor skid, while the external cooling water source of the water-cooling system is a chiller or a cooling water tower. Obviously, neither chillers nor cooling towers can realize automatic cooling of cooling water, and must rely on external supporting equipment and refrigerants to achieve cooling water cooling cycle, which significantly increases the initial investment, intermediate operation and later maintenance of hydrogen refueling stations cost. In fact, during the winter operation of the liquid drive hydrogen refueling station, only relying on good air natural convection cooling can also make the cooling water meet the expected cooling demand, and realize the self-cooling cycle of the booster skid cooling system. Also for the diaphragm machine hydrogen refueling station, the low-temperature cooling water is generally only required to be around 35°C, so during most of the operation period, there is basically no need to equip chillers or cooling water towers for excessive cooling. Based on this, the self-cooling water tank design for hydrogen compressors and the establishment of skid-mounted water-cooling circulation systems by making full use of natural cooling are important ways to reduce supporting investment, save energy and reduce emissions for hydrogen refueling stations, and respond to national green construction.

Contents of the invention

In order to realize these purposes and other advantages according to the present invention, a kind of hydrogen compressor self-cooling water tank is provided, comprising:

The box body is arranged horizontally and horizontally. The box body is used to store cooling liquid. The upper left end of the box body is provided with a liquid discharge port, and the right lower end of the box body is provided with a liquid inlet port; the liquid discharge port The mouth and the liquid inlet are communicated through a return pipe, and the return pipe is provided with a one-way valve to allow the cooling liquid to flow into the liquid inlet from the return pipe through the liquid discharge port;

A plurality of baffles, which are arranged in the box, for any two adjacent baffles, one end of one of the baffles is connected to the inner top of the box, and the other end is separated from the inner top of the box One end of the other partition is connected to the inner bottom of the box, and the other end is separated from the inner top of the box by a certain distance; and a plurality of circulation holes are opened on the partition.

According to a preferred embodiment of the present invention, the hydrogen compressor self-cooling water tank forms a cooling space between two adjacent partitions, and a temperature sensor is respectively arranged in each of the cooling spaces, and the The temperature sensor is fixed on the inner top or the inner bottom of the box through a fixing rod.

According to a preferred embodiment of the present invention, each of the cooling spaces is respectively provided with a telescopic rod, and one end of the telescopic rod is fixed to the inner top or inner bottom of the box, and for each cooling space, Among the fixed rods and telescopic rods, one end of one is fixed on the inner top of the box, the other end is fixed on the inner bottom of the box, and the non-fixed other end of the telescopic rod is connected with a connection A rod, the end of the connecting rod away from the telescopic rod is connected to a plurality of stirring plates.

According to a preferred embodiment of the present invention, the connecting rod is provided with a plurality of sliding grooves, which correspond to the stirring plates one by one, and are located directly below the corresponding stirring plates, and one end of the stirring plate is hinged to the connecting rod. One end of the adjusting rod is connected to the lower surface of the stirring plate, and the other end is slidably connected to the sliding groove.

According to a preferred embodiment of the present invention, the telescopic rod is a hydraulic rod, and both the temperature sensor and the hydraulic rod are connected to the controller. When the temperature sensed by the temperature sensor in one of the cooling spaces is higher than that of all cooling spaces When the average temperature sensed by the temperature sensor is reached, the controller controls the telescopic rod in the cooling space with higher temperature to reciprocate and expand, and then drives the stirring plate to reciprocate up and down, and then drives the cooling liquid to flow up and down.

According to a preferred embodiment of the present invention, the minimum horizontal width of the cooling space is larger than the maximum lateral width of all the stirring plates when they are unfolded.

According to a preferred embodiment of the present invention, it further includes a collection box, which is in the shape of a cuboid with an open top, and the collection box is fixedly connected to the bottom of the box body, and a sponge block is placed inside the collection box, and the sponge The size of the block is consistent with the size of the collection box, the height of the sponge block is smaller than the height in the collection box, and a placement plate is also movable up and down in the horizontal direction in the collection box, and the sponge block is placed in the collection box. The placing plate is provided with a weight sensor on the lower surface of the placing plate.

According to a preferred embodiment of the present invention, the color-changing liquid is adsorbed on the sponge block, and its color will change when it contacts with the cooling liquid.

According to a preferred embodiment of the present invention, the placement plate is arranged on the inner bottom of the collection box through a plurality of springs.

The present invention at least includes the following beneficial effects: the present invention divides the inner space of the box body into a plurality of relatively independent cooling spaces by means of a partition, and a flow channel is formed between the partition board and the inner top or inner bottom of the box body, and adjacent The flow channels formed by the two partitions are staggered at intervals, so that the flow path of the cooling liquid can be greatly extended under the premise of a fixed capacity of the box, and the flow cooling time of the cooling liquid can be increased, thereby improving the cooling efficiency. Moreover, a flow hole is also set on the separator, and its diameter is relatively small, usually 2 mm. As the flow progresses, the small flow hole will form a flow potential to further increase the mixing between cooling liquids at different positions. Reduce the temperature difference between the coolant at different positions to achieve uniform cooling.

Other advantages, objectives and features of the present invention will partly be embodied through the following descriptions, and partly will be understood by those skilled in the art through the research and practice of the present invention.

Description of drawings

Fig. 1 is a structural schematic diagram of a self-cooling water tank of a hydrogen compressor in an embodiment of the present invention.

Fig. 2 is a partial block diagram at A in Fig. 1 .

Figure 3 is a top view of a plurality of stirring plates in another embodiment of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can conceive of other obvious modifications. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present invention.

Those skilled in the art should understand that in the disclosure of the present invention, the terms "vertical", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention and The above terms should not be construed as limiting the present invention because the description is simplified rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation.

It can be understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element The quantity can be multiple, and the term "a" cannot be understood as a limitation on the quantity.

As shown in Figure 1, an embodiment of the present invention provides a self-cooling water tank of a hydrogen compressor, comprising:

The box body 100 is arranged horizontally and horizontally. The box body 100 is used to store cooling liquid. The upper left end of the box body 100 is provided with a liquid discharge port 110, and the lower right end of the box body 100 is provided with a liquid inlet port. 120; the liquid discharge port 110 communicates with the liquid inlet port 120 through the return pipe 200, and the return pipe 200 is provided with a one-way valve to allow the cooling liquid to pass through the liquid discharge port 110 from the return flow The pipeline 200 flows into the liquid inlet 120;

A plurality of baffles 300, which are arranged in the box 100, for any two adjacent baffles 300, one end of one of the baffles 300 is connected to the inner top of the box 100, and the other end is connected to the inner top of the box 100. The inner top of the box body 100 is separated by a certain distance, and one end of the other partition 300 is connected to the inner bottom of the box body 100, and the other end is separated by a certain distance from the inner top of the box body 100; and the partition plate 300 A plurality of circulation holes are opened on the top.

In the above embodiment, the internal space of the box body 100 is divided into a plurality of relatively independent cooling spaces by the partition plate 300, and a flow channel is formed between each partition plate and the inner top or inner bottom of the box body 100. , and the flow channels formed by two adjacent partitions are staggered at intervals, so that under the premise of a fixed capacity of the box 100, the flow path of the cooling liquid can be greatly extended, the flow cooling time of the cooling liquid can be increased, and the cooling effect can be improved. efficiency.

Moreover, a flow hole is also provided on the separator 300, and its diameter is relatively small, usually 2 mm. As the flow progresses, the small flow hole will form a cross-flow flow potential, further increasing the mixing between cooling liquids at different positions. , to reduce the temperature difference between coolants at different positions and achieve uniform cooling.

In another embodiment, the hydrogen compressor is self-cold water tank, a cooling space is formed between two adjacent partitions 300, and a temperature sensor 400 is respectively arranged in each cooling space, and the temperature The sensor 400 is fixed on the inner top or inner bottom of the box 100 through the fixing rod 500 .

Considering the problem of non-uniformity in the cooling process, the above-mentioned embodiment is provided with temperature sensors 400 distributed in different cooling spaces, so that the temperature can be monitored in different areas, providing a basis for subsequent precise temperature control.

According to a preferred embodiment of the present invention, a telescopic rod 600 is correspondingly provided in each cooling space, and one end of the telescopic rod 600 is fixed to the inner top or inner bottom of the box body 100, and for each cooling space For the fixed rod 500 and the telescopic rod 600 therein, one end of one is fixed on the inner top of the box body 100, the other end is fixed on the inner bottom of the box body 100, and the telescopic rod 600 The other non-fixed end is connected with a connecting rod 700 , and the end of the connecting rod 700 away from the telescopic rod 600 is connected with a plurality of stirring plates 800 . The placement plate 920 is disposed on the inner bottom of the collection box 900 through a plurality of springs 930 .

Considering that the temperature in each cooling area is not necessarily consistent, in order to achieve more accurate temperature uniformity, the above-mentioned embodiment sets a telescopic rod in each cooling space, and uses the expansion and contraction of the telescopic rod 600, that is, moves up and down, thereby driving the stirring plate 800 Move up and down, and then stir the cooling space corresponding to the telescopic rod 600, and then promote temperature uniformity among different regions.

In another embodiment, the connecting rod 700 is provided with a plurality of sliding grooves 710, which correspond to the stirring plates 800 one by one, and are located directly below the corresponding stirring plates 800, and one end of the stirring plates 800 is hinged to the One end of the adjusting rod 810 is connected to the lower surface of the stirring plate 800 , and the other end is slidably connected to the sliding groove 710 .

In the above embodiment, as the expansion and contraction of the telescopic rod 600, the stirring plate 800 also moves up and down. 700 will move upwards, at this time, one end of the stirring plate 800 hinged to the connecting rod 700 will move upwards accordingly, and the other end will tilt downwards under the action of its own gravity and cooling liquid resistance, when the telescopic rod 600 When shortened, the connecting rod 700 will move downward, and at this time, one end of the stirring plate 800 hinged to the connecting rod 700 will move downward accordingly, and the other end will tilt upward under the action of the cooling liquid resistance, so Reciprocating, the stirring plate 800 will have a very good effect of stirring and homogenizing, and speed up the uniformity of the temperature between the cooling liquids in different regions.

In another embodiment, the telescopic rod 600 is a hydraulic rod, and both the temperature sensor 400 and the hydraulic rod are connected to the controller. When the temperature sensed by the temperature sensor 400 in one of the cooling spaces is higher than that of all cooling spaces When the average value of the temperature sensed by the temperature sensor 400 proves that the temperature in the cooling space is relatively high, then the stirring plate in the cooling space can be started to stir. The telescopic rod 600 in the cooling space reciprocates and expands, and then drives the stirring plate 800 to reciprocate up and down, and then drives the cooling liquid to flow up and down.

In another embodiment, the minimum horizontal width of the cooling space is greater than the maximum lateral width of all the stirring plates 800 when they are unfolded, so as to avoid damage to the partition 300 when the stirring plates 800 are reciprocating up and down, It can also protect the stirring plate itself.

Considering that sometimes the coolant in the tank leaks, in order to monitor its leakage in real time, another embodiment of the present application provides a solution. The hydrogen compressor further includes a collection box 900 from the cold water tank, which is Cuboid shape with an open top, the collection box 900 is fixedly connected to the bottom of the box body 100, and a sponge block 910 is placed inside the collection box 900, the size of the sponge block 910 and the size of the collection box 900 Consistently, the height of the sponge block 910 is smaller than the height of the collection box 900, and the collection box 900 is also horizontally and vertically movable with a placement plate 920, and the sponge block 910 is placed on the placement plate 920 , the lower surface of the placement plate 920 is provided with a weight sensor.

When the coolant in the box 100 leaks, the liquid droplets will drop onto the sponge block 910 in the collection box 900 at the bottom of the box, and the quality of the sponge block 910 will also change accordingly. , and then the weight sensor will sense and monitor the weighing. The weight sensor can directly send it to the PLC controller, and the PLC control will send the data to the client.

In another embodiment, the sponge block 910 is adsorbed with a color-changing liquid, which will change color when in contact with the cooling liquid. The specific type of color-changing liquid is adjusted according to the type of cooling liquid, and only one principle needs to be followed. After the two are in contact, It only needs to change the color of the color-changing liquid, which is convenient for observation.

Although the embodiment of the present invention has been disclosed as above, it is not limited to the use listed in the specification and implementation, it can be applied to various fields suitable for the present invention, and it can be easily understood by those skilled in the art Therefore, the invention is not limited to the specific details and examples shown and described herein without departing from the general concept defined by the claims and their equivalents.

Claims (9)

1. A hydrogen compressor self-cooling water tank, comprising:

the box body is horizontally and transversely arranged and used for storing cooling liquid, a liquid outlet is formed in the upper end of the left side of the box body, and a liquid inlet is formed in the lower end of the right side of the box body; the liquid outlet is communicated with the liquid inlet through a backflow pipeline, and a one-way valve is arranged on the backflow pipeline so as to allow cooling liquid to flow into the liquid inlet from the backflow pipeline through the liquid outlet;

the plurality of partition boards are arranged in the box body, one end of each of the two adjacent partition boards is connected to the inner top of the box body, the other end of each of the two adjacent partition boards is separated from the inner top of the box body by a certain distance, one end of each of the other partition boards is connected to the inner bottom of the box body, and the other end of each of the other partition boards is separated from the inner top of the box body by a certain distance; and a plurality of flow holes are formed in the partition plate.

2. The hydrogen compressor self-cooling water tank according to claim 1, wherein a cooling space is formed between two adjacent partition boards, a temperature sensor is respectively and correspondingly arranged in each cooling space, and the temperature sensor is fixed on the inner top or the inner bottom of the tank body through a fixing rod.

3. The hydrogen compressor self-cooling water tank according to claim 2, wherein a telescopic rod is correspondingly arranged in each cooling space, one end of the telescopic rod is fixed at the inner top or the inner bottom of the tank body, and for each cooling space, one end of the telescopic rod is fixed at the inner top of the tank body, the other end of the telescopic rod is fixed at the inner bottom of the tank body, the other end of the telescopic rod is connected with a connecting rod, and one end of the connecting rod, which is far away from the telescopic rod, is connected with a plurality of stirring plates.

4. The hydrogen compressor self-cooling water tank according to claim 3, wherein the connecting rod is provided with a plurality of sliding grooves, the sliding grooves are in one-to-one correspondence with the stirring plates and are positioned right below the corresponding stirring plates, one end of each stirring plate is hinged to the connecting rod, one end of each adjusting rod is connected to the lower surface of each stirring plate, and the other end of each adjusting rod is slidably connected to the corresponding sliding groove.

5. The hydrogen compressor self-cooling water tank according to claim 4, wherein the telescopic rod is a hydraulic rod, the temperature sensor and the hydraulic rod are both connected to the controller, and when the temperature sensed by the temperature sensor in one cooling space is higher than the average value of the temperatures sensed by the temperature sensors in all cooling spaces, the controller controls the telescopic rod in the cooling space with higher temperature to reciprocate, so as to drive the stirring plate to reciprocate up and down, and further drive the cooling liquid to reciprocate up and down.

6. The hydrogen compressor self-cooling water tank as in claim 4, wherein a horizontal minimum width of said cooling space is greater than a maximum lateral width of all of said agitator plates when deployed.

7. The hydrogen compressor self-cooling water tank according to claim 2, further comprising a collecting box which is in a cuboid shape with an open top, wherein the collecting box is fixedly connected to the bottom of the box body, a sponge block is placed inside the collecting box, the size of the sponge block is consistent with that of the collecting box, the height of the sponge block is smaller than that in the collecting box, a placing plate is further arranged in the collecting box in a manner of being movable up and down in the transverse direction, the sponge block is placed on the placing plate, and a weight sensor is arranged on the lower surface of the placing plate.

8. The hydrogen compressor self-cooling water tank according to claim 7, wherein the sponge block is adsorbed with a color-changing liquid, which changes color upon contact with the cooling liquid.

9. The hydrogen compressor self-cooling water tank according to claim 7, wherein the placement plate is provided at an inner bottom of the collection box by a plurality of springs.

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