CN114870925A

CN114870925A - Experimental water tank

Info

Publication number: CN114870925A
Application number: CN202210471423.6A
Authority: CN
Inventors: 杜春暖; 张凯蛟; 杜雪岭; 赵海鹏; 徐庐飞; 王宁; 许峥; 周少鹏; 范子宇
Original assignee: China Petroleum and Chemical Corp
Current assignee: China Petroleum and Chemical Corp
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-08-09

Abstract

The utility model relates to an experiment water tank for the simulation bench test of coolant liquid, this experiment water tank includes: the cooling device comprises a box body, a cooling liquid inlet and a cooling liquid outlet, wherein one end of the box body is provided with an opening, a box cover is openably sealed at the opening, and the box body is provided with the cooling liquid inlet and the cooling liquid outlet which are respectively communicated with an inner cavity of the box body; and the clamp unit is detachably arranged in the inner cavity of the box body, comprises a plurality of clamp assemblies which are arranged at intervals and adjustable in distance, and is used for fixing test pieces with different sizes and specifications. Through the technical scheme, the anchor clamps unit can be dismantled and establish in the inner chamber of box, anchor clamps unit still includes that a plurality of intervals set up and can adjust the anchor clamps subassembly of interval simultaneously, so that the test piece of anchor clamps unit different sizes and shape can the centre gripping, and simultaneously, the anchor clamps unit can wholly take out when not using, carries out other experiments as required, can satisfy the test requirement of a plurality of producers through this experiment water tank, need not to customize according to different producer's requirements again, and the detection efficiency is improved, and the cost is reduced.

Description

Experimental water tank

Technical Field

The utility model relates to a stationary gantry simulation corrodes technical field, specifically relates to an experiment water tank.

Background

The proton exchange membrane fuel cell automobile is a new energy automobile taking hydrogen as a raw material, and has the characteristics of zero emission, no pollution and high efficiency. However, heat dissipation from the fuel cell engine is a problem and the cooling system is particularly critical. The cooling components of the fuel cell stack include a radiator, a coolant circulation pump, a cooling line, a water tank, and the like.

At present, through research, cooling systems tend to be mature, but the structure of a cooling experiment water tank used for a simulation bench test is single, and the box bodies with different structures need to be customized according to different manufacturer requirements, so that the time and the labor are consumed.

Disclosure of Invention

The utility model aims at providing an experiment water tank, this experiment water tank can fix the test piece of different sizes and shape through the anchor clamps unit, can wholly take out when the anchor clamps unit does not use, carries out other experiments, can satisfy the test requirement of a plurality of producers through this experiment water tank.

In order to achieve the above object, the present disclosure provides an experimental water tank for a simulation bench test of a coolant, the experimental water tank including:

the cooling device comprises a box body, a cooling device and a cooling device, wherein one end of the box body is provided with an opening, the opening is openably sealed with a box cover, and the box body is provided with a cooling liquid inlet and a cooling liquid outlet which are respectively communicated with an inner cavity of the box body; and

the clamp unit is detachably arranged in the inner cavity of the box body and comprises a plurality of clamp assemblies which are arranged at intervals and adjustable in distance, and the clamp assemblies are used for fixing test pieces of different sizes.

Optionally, the clamp unit includes two optical axes extending along the first direction and spaced apart from each other in the second direction, a slider is lockably and slidably connected to each optical axis, and the clamp assembly is respectively connected to the two optical axes through the sliders;

the first direction is perpendicular to the second direction.

Optionally, the slider with the department of meeting of optical axis is equipped with first locking structure, locking structure include first bolt and set up in first screw on the slider, first bolt passes behind the first screw can with the optical axis butt is used for with on the optical axis the position locking of slider.

Optionally, the clamp assembly includes a supporting member extending along the second direction and a plurality of fixing members connected to the supporting member and extending along a third direction, and the supporting member is connected to the optical axis through the slider;

a second locking structure is arranged at the joint of the fixing piece and the supporting piece, and the second locking structure is used for connecting the fixing piece to the supporting piece in an unlocking manner so as to enable the distance between two adjacent fixing pieces to be adjustable;

the first direction, the second direction and the third direction are perpendicular to each other.

Optionally, the second locking structure includes a second bolt, a plurality of second screw holes disposed at intervals along the second direction on the supporting member, and a mounting hole disposed on the fixing member and corresponding to the second screw hole, and the second bolt passes through the mounting hole and then is connected to the second screw hole, so as to connect the fixing member to the supporting member.

Optionally, the experiment water tank further comprises a basket detachably connected to the clamp unit;

the hanging basket comprises a basket body with an opening and a basket cover detachably mounted at the opening end of the basket body, and the basket body is used for placing a test piece with a small size.

Optionally, the cooling liquid inlet is disposed on a side wall of the box body near the box cover, and the cooling liquid outlet is disposed on a bottom wall of the box body.

Optionally, a filter screen is arranged at the cooling liquid outlet.

Optionally, the experimental water tank further comprises a liquid level display meter and a liquid filling port which are arranged on the outer side wall of the tank body and communicated with the inner cavity of the tank body;

the liquid level display meter is used for displaying the liquid level height of the cooling liquid in the box body, the height of the liquid adding opening is larger than that of the liquid level display meter along the third direction, the liquid adding opening is in an open state and a closed state, and the liquid adding opening is used for supplementing the cooling liquid to the inner cavity of the box body.

Optionally, the experimental water tank further comprises a heating unit; the side wall of the box body is provided with an interlayer, and the heating unit is arranged in the interlayer and used for heating the cooling liquid in the inner cavity of the box body;

and/or the experimental water tank further comprises a pressure relief opening which is arranged on the outer side wall of the tank body and is communicated with the inner cavity of the tank body, and an electromagnetic valve assembly which is arranged on the pressure relief opening and is used for controlling the opening and closing of the pressure relief opening;

the experimental water tank further comprises a pressure detection mechanism for detecting the pressure in the inner cavity of the tank body, and the electromagnetic valve assembly is in communication connection with the pressure detection mechanism.

Through the technical scheme, promptly this openly provided experiment water tank, the anchor clamps unit can be dismantled and establish in the inner chamber of box, anchor clamps unit still includes a plurality of intervals and sets up and can adjust the anchor clamps subassembly of interval simultaneously, so that the anchor clamps unit can the test piece of centre gripping unidimensional and shape, and simultaneously, can wholly take out when the anchor clamps unit does not use, carry out other experiments as required, can satisfy the test requirement of a plurality of producers through this experiment water tank, need not to customize according to different producer's requirement again, and the detection efficiency is improved, and the cost is reduced.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a block diagram of an experimental water tank provided in some embodiments of the present disclosure;

FIG. 2 is an exploded view of an experimental water tank provided by some embodiments of the present disclosure;

FIG. 3 is a schematic diagram of the internal structure of an experimental water tank provided by some embodiments of the present disclosure;

FIG. 4 is a block diagram of a fixture unit of a laboratory water tank provided in some embodiments of the present disclosure;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is an exploded view of a basket of an experimental water tank provided by some embodiments of the present disclosure;

FIG. 7 is a side cross-sectional view of an experimental water tank provided by some embodiments of the present disclosure;

fig. 8 is an enlarged view of a portion B in fig. 7.

Description of the reference numerals

110-a box body; 1101-a coolant inlet; 1102-coolant outlet; 1103-a liquid filling port; 1104-a pressure relief vent; 1105-a solenoid valve assembly; 1106-sealing strip; 111-an outer layer; 112-inner layer; 113-an interlayer; 120-box cover; 200-a gripper unit; 210-a clamp assembly; 211-a support; 2111-a second screw hole; 212-a fixture; 2121-mounting holes; 213-a second bolt; 220-optical axis; 230-a slider; 240-first bolt; 250-support; 300-hanging basket; 310-a basket body; 311, opening a hole; 320-basket cover; 400-liquid level display meter; 500-a heating unit; 600-pressure detection mechanism.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, the use of directional words such as "upper, lower, left, right, front, rear" generally refers to the position of the user when in use, unless otherwise specified; "inner and outer" refer to the inner and outer of the respective component profiles; "distal" and "proximal" refer to the respective structures or respective elements being distal or proximal to one another; "first direction" refers to the X direction shown in the drawings; "second direction" refers to the Y direction shown in the drawings; "third direction" refers to the Z direction as shown in the drawings; in addition, it is to be noted that terms such as "first, second, and the like are used for distinguishing one element from another.

As shown in fig. 1 to 8, in order to achieve the above object, the present disclosure provides an experimental water tank for a simulation bench test of a hydrogen fuel cell coolant, the experimental water tank including: a box body 110, wherein one end of the box body 110 is provided with an opening, the opening is openably sealed with a box cover 120, and the box body 110 is provided with a cooling liquid inlet 1101 and a cooling liquid outlet 1102 which are respectively communicated with an inner cavity of the box body 110; and the clamp unit 200 is detachably arranged in the inner cavity of the box body 110, and comprises a plurality of clamp assemblies 210 which are arranged at intervals and have adjustable intervals and used for fixing test pieces with different sizes and specifications.

Through the technical scheme, promptly this openly provided experiment water tank, anchor clamps unit 200 can be dismantled and establish in the inner chamber of box 110, anchor clamps unit 200 still includes a plurality of intervals and sets up and can adjust the anchor clamps subassembly 210 of interval simultaneously, so that anchor clamps unit 200 can the not test piece of unidimensional and shape of centre gripping, and simultaneously, anchor clamps unit 200 can wholly take out when not using, carry out other experiments as required, can satisfy the test requirement of a plurality of producers through this experiment water tank, need not to customize according to different producer's requirements again, and the detection efficiency is improved, and the cost is reduced.

In some embodiments, the box body 110 may be configured as a rectangular parallelepiped structure, an opening at an upper end of the box body is rectangular, the box cover 120 is configured as a rectangular structure corresponding to the opening, and the box cover 120 may be detachably connected to the box body 110 by means of rectangular buckles disposed at opposite sides; in other embodiments, a first side of the case cover 120 is rotatably connected to an upper end of a sidewall of one side of the case body 110, and a second side of the case cover 120 corresponding to the first side is detachably connected to a sidewall of the other side of the case body 110 by a rectangular buckle, thereby achieving opening and sealing of the case body 110. It should be noted that, a sealing strip 1106 for sealing the cover 120 and the box body 110 when the cover 120 and the box body 110 are connected is disposed at a joint of the cover 120 and the box body 110, wherein the sealing strip 1106 may be disposed on the cover 120 or on the box body 110, so as to ensure that when the cover 120 is connected with the box body 110, an inner cavity is completely sealed, and the disclosure is not particularly limited. In order to facilitate the opening and moving of the case cover 120, at least one handle is disposed on the case cover 120, so that the laboratory staff can hold the case conveniently.

The gripper unit 200 may be configured in any suitable manner, as shown in fig. 2 and 4, in some embodiments of the present disclosure, the gripper unit 200 includes two optical axes 220 extending along the first direction and spaced apart from each other in the second direction, a slider 230 is lockably slidably connected to each optical axis 220, and the gripper assembly 210 is respectively connected to the two optical axes 220 through the slider 230; the first direction is perpendicular to the second direction. Each of the jig assemblies 210 is slidable along the length direction of the optical axis 220 along with the slider 230, so that the distance between two adjacent jig assemblies 210 is adjusted in the first direction, so that the jig assemblies 210 can adapt to test pieces with different size specifications and shapes, and when the test piece is placed between the two jig assemblies 210, the slider 230 and the optical axis 220 are locked, that is, after the position of the slider 230 is fixed, the two jig assemblies 210 clamp and fix the test piece.

The lockable sliding connection between the sliding block 230 and the optical axis 220 can be implemented by any suitable structure, as shown in fig. 4, in some embodiments of the present disclosure, a first locking structure is disposed at a joint of the sliding block 230 and the optical axis 220, the locking structure includes a first bolt 240 and a first screw hole disposed on the sliding block 230, and the first bolt 240 can abut against the optical axis 220 after passing through the first screw hole to lock a position of the sliding block 230 on the optical axis 220. The sliding block 230 is provided with a through hole through which the optical axis 220 passes and is in sliding fit with the optical axis 220, the sliding block 230 is further provided with a first screw hole communicated with the through hole, a first bolt 240 is screwed in the extended first screw hole, and by rotating the first bolt 240, when the end face of the first bolt 240 extending into the first screw hole abuts against the optical axis 220, the sliding between the sliding block 230 and the optical axis 220 is locked; when the position of the clamp assembly 210 needs to be adjusted, the first bolt 240 is rotated in the reverse direction, so that the slider 230 and the optical axis 220 are unlocked, and the slider 230 can drive the clamp assembly 210 to slide along the optical axis 220.

In some embodiments, the first bolt 240 may be a butterfly bolt, so that a user may adjust the distance between the clamp assemblies 210 in the first direction without using tools, which is convenient for operation.

It should be noted that two ends of the two optical axes 220 can be connected through a support 250 respectively to realize the connection of the two optical axes 220 and the support of the whole structure of the clamp unit 200, wherein the support 250 is detachably connected to the inner cavity of the box body 110, so as to realize the connection and the disconnection of the clamp unit 200 and the inner cavity of the box body 110. It will be appreciated that the removable connection of the clamp unit 200 to the interior cavity of the housing 110 may take any suitable configuration, including but not limited to snap-fit, threaded, bayonet, etc. For example, one of a snap and a slot may be provided in the inner cavity, and the other of the snap and the slot may be provided on the support 250 of the clamp unit 200, so that the clamp unit 200 is detachably connected by the cooperation of the snap and the slot.

It should be noted that the sliding block 230 may be of an integral structure or a separate structure. In some embodiments, the slider 230 may be made of an insulating material, such as teflon, to secure the bipolar plate without contacting metal.

The clamp assembly 210 may be constructed in any suitable manner, as shown in fig. 4 and 5, and in some embodiments of the disclosure, the clamp assembly 210 may include a supporting member 211 extending along the second direction and a plurality of fixing members 212 connected to the supporting member 211 and extending along the third direction, the supporting member 211 being connected to the optical axis 220 by a sliding block 230; a second locking structure is arranged at the joint of the fixing piece 212 and the support piece 211, and is used for connecting the fixing piece 212 to the support piece 211 in an unlocking manner, so that the distance between two adjacent fixing pieces 212 is adjustable; the first direction, the second direction and the third direction are perpendicular to each other. The first direction may be a length direction of the case 110, the second direction may be a width direction of the case 110, and the third direction may be a depth direction of the case 110.

In some embodiments of the present disclosure, the second locking structure may include a second bolt 213, a plurality of second screw holes 2111 spaced apart from each other along the second direction and a mounting hole 2121 provided in the fixing element 212 and corresponding to the second screw holes 2111, wherein the second bolt 213 passes through the mounting hole 2121 and is connected to the second screw hole 2111 for connecting the fixing element 212 and the supporting element 211. The supporting member 211 is provided with a plurality of second screw holes 2111 at intervals along the length direction thereof, and the mounting holes 2121 of the fixing members 212 correspond to different second screw holes 2111, and then the second bolts 213 are connected to the second screw holes 2111 after passing through the mounting holes 2121, so as to adjust the distance between two adjacent fixing members 212 in the second direction.

In the present disclosure, the number of the fixture assemblies 210 may be three, and the fixture assemblies are arranged at intervals along the first direction, wherein each fixture assembly 210 includes a supporting member 211 extending along the second direction, and the bottoms of the three fixing members 212 are connected to the supporting member 211 through the second locking structure, so as to adjust the distance between any two fixing members 212, thereby further satisfying the requirements of the test pieces with different sizes and different switches for the fixture unit 200.

Some of the test pieces with larger size can be directly fixed by the clamp unit 200, and some of the test pieces with relatively smaller size are also relatively smaller in size, so as to conveniently fix the test pieces with relatively smaller size, as shown in fig. 2, 3 and the drawings, in some embodiments of the present disclosure, the experimental water tank may further include a basket 300 detachably connected to the clamp unit 200; the basket 300 includes a basket body 310 having an opening 311, and a basket cover 320 detachably mounted on an open end of the basket body 310, wherein the basket body 310 is used for holding a test piece with a smaller size. The basket body 310 may be hung on the clamp unit 200, or detachably connected to the fixing member 212 of the clamp unit 200 by plugging, clipping, and the like. The opening 311 of the basket 310 is used for the circulation of the cooling liquid, that is, the cooling liquid can enter the basket 310 through the opening 311, or can flow out from the basket 310, so that the test pieces in the basket 310 can be washed and soaked, and the test pieces with smaller size directly placed in the inner cavity of the box 110 are prevented from floating in the box 110. It should be noted that basket cover 320 is detachably connected to basket body 310, and when opened, is used to place a test piece to be tested into basket body 310, and after placement, basket cover 320 can be closed to prevent the test piece from floating into the inner cavity of box body 110 through the open end of basket body 310.

It is worth noting that the basket cover 320 can be provided with the opening 311, so as to further improve the circulation of the cooling liquid, so that the testing environment of the testing piece is closer to the actual using environment, and the accuracy of the detection is improved.

The coolant inlet 1101 and the coolant outlet can be appropriately arranged according to actual requirements, as shown in fig. 1, fig. 2 and fig. 3, in some embodiments, the coolant inlet 1101 is disposed on a side wall of the box body 110 near the box cover 120, and the coolant outlet 1102 is disposed on a bottom wall of the box body 110. Wherein, the coolant inlet 1101 is arranged on the side wall of the box body 110 and is located at the upper part of the side wall, and the coolant outlet 1102 is arranged on the bottom wall, which facilitates the discharge of the coolant.

To avoid that small test pieces or parts in the inner cavity of the box 110 are flushed away by the cooling fluid outlet 1102, in some embodiments of the present disclosure, a filter screen is provided at the cooling fluid outlet 1102. The filter screen may be disposed in an inner cavity of the box body 110, or may be disposed outside the box body 110. When the filter screen is arranged in the inner cavity of the box body 110, the filter screen can be constructed as a floor drain type filter screen, a counter bore is arranged at the position of the cooling liquid outlet 1102 of the inner cavity of the box body 110, the floor drain type filter screen is detachably connected in the counter bore, and connection modes such as clamping, inserting and the like can be adopted.

In order to observe the liquid level of the coolant inside the tank body 110 and to conveniently supplement the coolant into the inner cavity of the tank body 110 when the liquid level is lower than a preset liquid level, as shown in fig. 1, 2 and 3, in some embodiments of the present disclosure, the experimental water tank further includes a liquid level indicator 400 and a liquid filling port 1103 which are disposed on the outer side wall of the tank body 110 and are communicated with the inner cavity of the tank body 110; the liquid level display meter 400 is used for displaying the liquid level height of the cooling liquid in the tank body 110, the height of the liquid filling port 1103 is larger than that of the liquid level display meter 400 along the third direction, the liquid filling port 1103 has an open state and a closed state, and the liquid filling port 1103 is used for supplementing the cooling liquid to the inner cavity of the tank body 110. Normally, the filling port 1103 is in a closed state to seal the tank 110, and when the level of the liquid coolant displayed by the liquid level display meter 400 is lower than a preset level, the filling port 1103 is switched to an open state for filling the coolant into the tank 110. The liquid level display meter 400 is matched with the liquid filling port 1103, so that cooling liquid can be added into the box body 110 at any time according to an observation result, and the experimental requirement is met. It is to be understood that the level display gauge 400 may take any suitable configuration known in the art, and the present disclosure is not limited in particular.

To meet the requirements of different experimental temperatures, as shown in fig. 7 and 8, in some embodiments of the present disclosure, the experimental water tank may further include a heating unit 500; the side wall of the box body 110 is provided with an interlayer 113, and the heating unit 500 is arranged in the interlayer 113 and used for heating the cooling liquid in the inner cavity of the box body 110. The box body 110 includes an inner layer 112 and an outer layer 111, an interlayer 113 is disposed between the inner layer 112 and the outer layer 111, the interlayer 113 may be disposed along a circumferential direction of the sidewall, and the heating unit 500 is disposed in the interlayer 113, so that the heating unit 500 is heated more uniformly. It is understood that the heating unit 500 includes, but is not limited to, a heat tracing band, and may also be a resistance wire coil, an induction heating coil, or other heating structure capable of performing a heating function. The cooling liquid in the inner cavity of the box body 110 can be kept in a required temperature range by the heating of the heating unit 500, and the same test requirements can be met.

As shown in fig. 1, in other embodiments of the present disclosure, the experimental water tank further includes a pressure relief port 1104 disposed on an outer sidewall of the tank 110 and communicated with an inner cavity of the tank 110, and a solenoid valve assembly 1105 disposed on the pressure relief port 1104 and used for controlling the opening and closing of the pressure relief port 1104; the pressure relief port 1104 may be disposed above the liquid level of the cooling liquid, and is used for pressure relief protection when the pressure in the tank 110 is too high. In order to realize automatic detection of the pressure in the inner cavity of the box body 110 and automatic pressure relief protection, a pressure detection mechanism 600 may be further disposed at a position on the side wall of the inner cavity of the box body 110, which is higher than the coolant, for detecting the pressure in the box body 110, and a solenoid valve assembly 1105 capable of controlling the opening and closing of the pressure relief port 1104 is disposed at the pressure relief port 1104, and the solenoid valve assembly 1105 is in communication connection with the pressure detection mechanism 600, for receiving the pressure data of the pressure detection mechanism 600, and when the pressure data is equal to or higher than a preset pressure, the pressure relief port is controlled to be opened, so that automatic pressure relief is realized.

It should be noted that, the solenoid valve assembly 1105 and the pressure detection mechanism 600 may both adopt devices known in the art, and the above functions can be achieved, which is not described herein again.

In conclusion, the experiment water tank that this disclosure provided, anchor clamps unit 200 can be dismantled and establish in the inner chamber of box 110, anchor clamps unit 200 still includes a plurality of intervals and sets up and can adjust the anchor clamps subassembly 210 of interval simultaneously, so that anchor clamps unit 200 can the not test piece of unidimensional and shape of centre gripping, and simultaneously, anchor clamps unit 200 can wholly take out when not using, carry out other experiments as required, can satisfy the test requirement of a plurality of producers through this experiment water tank, need not to carry out the customization according to different producer's requirements again, and the detection efficiency is improved, and the cost is reduced.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. An experimental water tank for a simulation bench test of a coolant, the experimental water tank comprising:

2. The laboratory water tank as claimed in claim 1, wherein said gripper unit comprises two optical axes extending in a first direction and spaced apart in a second direction, a slider being lockably slidably connected to each of said optical axes, said gripper assembly being connected to each of said two optical axes via said slider;

the first direction is perpendicular to the second direction.

3. The experimental water tank as claimed in claim 2, wherein a first locking structure is disposed at a joint of the sliding block and the optical axis, the locking structure includes a first bolt and a first screw hole disposed on the sliding block, and the first bolt can abut against the optical axis after passing through the first screw hole to lock a position of the sliding block on the optical axis.

4. The experimental water tank as claimed in claim 3, wherein the clamp assembly comprises a support member extending along the second direction and a plurality of fixing members connected to the support member and extending along a third direction, the support member being connected to the optical axis through the slider;

5. The experimental water tank as claimed in claim 4, wherein the second locking structure comprises a second bolt, a plurality of second screw holes spaced along the second direction and disposed on the supporting member, and a mounting hole disposed on the fixing member and corresponding to the second screw holes, the second bolt passing through the mounting hole and being connected to the second screw holes for connecting the fixing member to the supporting member.

6. The test water tank as claimed in any one of claims 1 to 5, further comprising a basket detachably connected to the jig unit;

7. The experimental water tank as claimed in claim 1, wherein the cooling liquid inlet is disposed on a side wall of the tank body near the tank cover, and the cooling liquid outlet is disposed on a bottom wall of the tank body.

8. The experimental water tank as claimed in claim 7, wherein a filter screen is arranged at the cooling liquid outlet.

9. The experimental water tank as claimed in claim 1, further comprising a liquid level indicator and a liquid filling port which are arranged on the outer side wall of the tank body and communicated with the inner cavity of the tank body;

10. The experimental water tank as claimed in claim 1, further comprising a heating unit; the side wall of the box body is provided with an interlayer, and the heating unit is arranged in the interlayer and used for heating the cooling liquid in the inner cavity of the box body;