A rapid water temperature control device

Abstract

The utility model relates to fuel cell stack test technical field, and disclose a kind of fast temperature control device, including water delivery main body, the water delivery main body one side is connected with heat storage water tank, the water delivery main body includes main output pipe, and the end of main output pipe is connected with flow controller, the end of main output pipe is fixed with flange and pipeline temperature sensor, the both sides of main output pipe are connected with hot drain pipe and cold drain pipe arrangement.This utility model's main output pipe both sides cooperation intercommunication and the hot drain pipe and cold drain pipe of staggered arrangement carry out the regulation and control of water temperature, cooperate hand automatic integrated solenoid valve to realize the hot and cold water injection of different gear, by with near end shunt mode, so that hot water or cold water can quickly cooperate main shunt head and vice shunt head and quickly converge hot water or cold water into water delivery cavity, to reach the purpose of quickly regulating water temperature, and whole process can be monitored by pipeline temperature sensor control, improve accuracy, provide red convenience for subsequent test operation.

Description

Technical Field

[0001] This utility model relates to the field of fuel cell stack testing technology, specifically a rapid water temperature control device. Background Technology

[0002] Fuel cell systems are used as driving or auxiliary power sources in vehicles, yachts, aerospace, and underwater propulsion equipment. They convert the chemical energy of reactants (fuel and oxidant) into electrical and thermal energy through an electrochemical reaction process. Proton exchange membrane fuel cells (PEMFCs) are the most widely used. To ensure efficient operation of PEMFC systems in optimal environments, the supplied reaction gases need to be heated and humidified. Therefore, precise and rapid control of the temperature and humidity of the reaction gases is crucial. Humidity control also needs to prevent the formation of liquid water. In fuel cell stack testing, the humidification and temperature control of hydrogen and oxygen are key technologies to ensure the proton exchange membrane (PEM) is in its optimal hydration state, directly affecting stack performance and lifespan. Insufficient humidity leads to dehydration of the PEM, a decrease in ionic conductivity, resulting in performance degradation or even damage. Conversely, excessive humidity can cause flooding, hindering gas diffusion to the catalyst layer and reducing reaction efficiency.

[0003] In existing technologies, when fuel cells are tested using a stack test platform, the temperature, humidity, and delivery pressure of the test platform need to be precisely controlled. The mainstream method in traditional temperature and humidity control is to pre-humidify the reaction gas using an external humidifier, such as liquid water injection or bubbling, to form steam. This steam is then delivered into the platform in a single stream to form heating and humidification, which places stringent requirements on the water temperature.

[0004] While the aforementioned existing technologies have significant beneficial effects, they still have shortcomings:

[0005] In the above-mentioned fuel cell stack test, the steam is generated by pre-humidifying liquid water and reactant gases. However, the temperature of the liquid water is preheated by heating equipment and then transported through pipelines. This results in heat loss during the process of transporting the liquid water through the pipeline to pre-humidify the reactant gases, which affects the accuracy of temperature and humidity control of the downstream steam humidification and is not conducive to the stability of the test process. Therefore, a rapid water temperature control device is proposed. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a rapid water temperature control device. It outputs steam and water through a main output pipe, while hot and cold water pipes arranged in a staggered pattern on both sides are used to regulate the water temperature. This allows hot or cold water to be quickly drawn into the water delivery chamber by the main and secondary branch heads, thereby achieving the purpose of rapidly adjusting the water delivery temperature.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a rapid water temperature control device, comprising a water conveying body, one side of which is connected to a hot water storage tank, the water conveying body including a main output pipe, and a flow controller connected to the end of the main output pipe, a flange and a pipe temperature sensor fixed at the end of the main output pipe, hot drainage pipes and cold drainage pipes connected and arranged on both sides of the main output pipe, the ends of the hot drainage pipes and cold drainage pipes being connected to connecting pipes, and the ends of the connecting pipes being connected to a pump, one end of the pump being connected to a cooling water tank, a water conveying chamber being opened inside the main output pipe, and a manifold ring being fixed sequentially on the inner wall of the water conveying chamber, a main branch head being fixed at the center of the manifold ring, and auxiliary branch heads being connected around the main branch head through branch ring pipes, the rear end of the main branch head being connected to a manual / automatic integrated solenoid valve.

[0008] Preferably, the hot drain pipe and the cold drain pipe are symmetrically distributed in an alternating pattern along both sides of the main output pipe, and the hot drain pipe and the cold drain pipe are connected to the water delivery chamber inside the main output pipe.

[0009] Preferably, the ends of the hot drain pipe and the cold drain pipe are each connected to a manual / automatic integrated solenoid valve, and the ends of both the hot drain pipe and the cold drain pipe are connected to a connecting pipe.

[0010] Preferably, the cold drain pipe is connected to the cooling water tank via a connecting pipe, and the hot drain pipe is connected to the hot water storage tank via a connecting pipe.

[0011] Preferably, the secondary diverter head is connected to the main diverter head through a diverter ring pipe, and the secondary diverter head and the main diverter head are fixed to the inner wall of the water delivery chamber through a manifold ring.

[0012] Preferably, the hot water storage tank includes an insulated box, and the inside of the insulated box is provided with an insulated water cavity. An electric heating tube is fixed inside the insulated water cavity, and a box temperature sensor is fixed on the top surface of the insulated box.

[0013] Preferably, the inner wall of the insulated water cavity is made of double-layer stainless steel, and the heating tubes are arranged at equal intervals along the inside of the insulated water cavity.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. When applied to a testing platform, this utility model outputs steam and water through the main output pipe, while hot and cold water pipes arranged in a staggered pattern on both sides are used to regulate the water temperature. A manual / automatic solenoid valve is used to inject hot and cold water at different levels. By using a near-end diversion method, hot or cold water can be quickly fed into the water delivery chamber through the main and secondary diversion heads, thereby achieving rapid adjustment of the water delivery temperature. The entire process can be monitored and controlled by a pipe temperature sensor, improving accuracy and providing greater convenience for subsequent testing operations.

[0016] 2. The insulation chamber and the insulation water cavity of this water temperature control device adopt a double-layer inner tank design, which can effectively provide water insulation. At the same time, with the help of electric heating tube and chamber temperature sensor monitoring, it ensures that the water temperature meets the requirements for a long time, thus providing a stable hot water supply during frequent testing.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the water conveying body of this utility model;

[0019] Figure 2 This is a side view sectional view of the main output tube of this utility model.

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the bus ring in the main output pipe of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the hot water storage tank of this utility model.

[0022] In the diagram: 1. Water supply body; 101. Main output pipe; 102. Flow controller; 103. Flange; 104. Pipe temperature sensor; 105. Hot water drain pipe; 106. Cold water drain pipe; 107. Connecting pipe; 108. Pump; 109. Cooling water tank; 110. Water supply chamber; 111. Manifold ring; 112. Main branch head; 113. Branch ring pipe; 114. Secondary branch head; 115. Manual / automatic integrated solenoid valve; 2. Hot water storage tank; 201. Insulation box; 202. Insulated water chamber; 203. Electric heating element; 204. Box temperature sensor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This embodiment of a rapid water temperature control device includes a water supply body 1, one side of which is connected to a hot water storage tank 2. The water supply body 1 includes a main output pipe 101, and the end of the main output pipe 101 is connected to a flow controller 102. A flange 103 and a pipe temperature sensor 104 are fixed to the end of the main output pipe 101. Hot drain pipes 105 and cold drain pipes 106 are connected and arranged on both sides of the main output pipe 101. The ends of the hot drain pipes 105 and cold drain pipes 106 are both connected to... There is a connecting pipe 107, and a pump 108 is connected to the end of the connecting pipe 107. One end of the pump 108 is connected to a cooling water tank 109. A water delivery chamber 110 is opened inside the main output pipe 101, and a manifold ring 111 is fixed to the inner wall of the water delivery chamber 110 in sequence. A main branch head 112 is fixed to the center of the manifold ring 111, and a secondary branch head 114 is connected to the main branch head 112 around its perimeter through a branch ring pipe 113. A manual / automatic integrated solenoid valve 115 is connected to the rear end of the main branch head 112.

[0025] like Figure 1-4As shown, the water temperature control device in this utility model is similar in structure to existing drainage devices. The main improvement of this utility model is that steam water is output through the main output pipe 101, while the hot drainage pipe 105 and cold drainage pipe 106, which are connected and staggered on both sides, are used to regulate the water temperature. This allows hot or cold water to be quickly fed into the water delivery chamber 110 through the main branch head 112 and the secondary branch head 114, thereby achieving the purpose of quickly regulating the water delivery temperature. The flow controller 102 and the manual / automatic integrated solenoid valve 115 in this utility model are both existing technologies. When the water temperature control device is in use, the end of the main output pipe 101 can be connected to the steam generator of the fuel cell stack test platform through flange 103. During water supply, the water volume is regulated by the flow controller 102 and the water is delivered from the end of the main output pipe 101 and pre-humidified with gas. When water temperature regulation is required, hot or cold water can be injected through the hot drain pipe 105 and cold drain pipe 106 connected on both sides. For example, the injected hot water is discharged to the connecting pipe 107 through the hot water storage tank 2 and the pump 108. Then, the hot water is initially diverted to the hot drain pipe 105 and enters the water supply chamber through the connecting pipe 107. Within 110, a single or multiple sets of manual / automatic solenoid valves 115 can be opened as needed to raise the temperature. Once the manual / automatic solenoid valve 115 is opened, the main distributor 112 and secondary distributor 114 at the end of the hot drain pipe 105 will again divert the hot water into the main output water, resulting in rapid heating of the output water. Cooling is achieved by injecting cold water through the cold drain pipe 106 in the same manner. During this process, the water temperature is constantly monitored by the pipe temperature sensor 104 to determine the auxiliary testing requirements. This water temperature control device is applied to the testing platform. At the same time, steam water is output through the main output pipe 101, while the hot drain pipe 105 and cold drain pipe 106 on both sides are connected and staggered to regulate the water temperature. The manual and automatic solenoid valve 115 realizes the injection of hot and cold water at different levels. By using the near-end diversion method, hot or cold water can be quickly combined with the main diversion head 112 and the secondary diversion head 114 to quickly flow into the water supply chamber 110, thereby achieving the purpose of quickly regulating the water supply temperature. The entire process can be monitored and controlled by the pipeline temperature sensor 104, improving accuracy and providing convenience for subsequent testing operations.

[0026] like Figure 4As shown, the hot water storage tank 2 includes an insulated tank 201, and an insulated water cavity 202 is provided inside the insulated water cavity 202. An electric heating element 203 is fixed inside the insulated water cavity 202. A tank temperature sensor 204 is fixed on the top surface of the insulated tank 201. Before adjusting the water temperature, the electric heating element 203 inside the insulated tank 201 needs to be turned on. The electric heating element 203 regulates the internal water temperature and heats it. With the help of the tank temperature sensor 204, the internal water temperature is kept constant to ensure that the hot water temperature meets the requirements. When supplying water, it is discharged through the pump 108 and connecting pipe 107 also mounted at the front end of the insulated tank 201. The insulated tank 201 and the insulated water cavity 202 adopt a double-layer inner tank design, which can effectively provide water insulation. At the same time, with the help of the electric heating element 203 and the tank temperature sensor 204, it is ensured that the water temperature meets the requirements for a long time, so as to provide a stable hot water supply during frequent testing.

[0027] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A rapid water temperature control device, comprising a water conveying body (1), characterized in that, One side of the water conveying body (1) is connected to a hot water storage tank (2). The water conveying body (1) includes a main output pipe (101), and a flow controller (102) is connected to the end of the main output pipe (101). A flange (103) and a pipe temperature sensor (104) are fixed at the end of the main output pipe (101). Hot drainage pipes (105) and cold drainage pipes (106) are connected and arranged on both sides of the main output pipe (101). The ends of the hot drainage pipes (105) and cold drainage pipes (106) are connected to connecting pipes (107), and the connecting pipes are connected to the connecting pipes (107). A pump (108) is connected to the end of the pipe (107), and a cooling water tank (109) is connected to one end of the pump (108). A water delivery chamber (110) is opened inside the main output pipe (101), and a manifold (111) is fixed to the inner wall of the water delivery chamber (110). A main branch head (112) is fixed to the center of the manifold (111), and a secondary branch head (114) is connected to the main branch head (112) around the perimeter through a branch ring pipe (113). A manual / automatic solenoid valve (115) is connected to the rear end of the main branch head (112).

2. The rapid water temperature control device according to claim 1, characterized in that, The hot drain pipe (105) and cold drain pipe (106) are symmetrically distributed in an alternating pattern along both sides of the main output pipe (101), and the hot drain pipe (105) and cold drain pipe (106) are connected to the water delivery chamber (110) inside the main output pipe (101).

3. The rapid water temperature control device according to claim 1, characterized in that, The ends of the hot drain pipe (105) and the cold drain pipe (106) are each connected to the manual / automatic solenoid valve (115), and the ends of the hot drain pipe (105) and the cold drain pipe (106) are both connected to the connecting pipe (107).

4. The rapid water temperature control device according to claim 1, characterized in that, The cold drain pipe (106) is connected to the cooling water tank (109) through the connecting pipe (107), and the hot drain pipe (105) is connected to the hot water storage tank (2) through the connecting pipe (107).

5. The rapid water temperature control device according to claim 1, characterized in that, The secondary diverter head (114) is connected to the main diverter head (112) through the diverter ring pipe (113), and the secondary diverter head (114) and the main diverter head (112) are fixed to the inner wall of the water delivery chamber (110) through the manifold ring (111).

6. The rapid water temperature control device according to claim 1, characterized in that, The hot water storage tank (2) includes an insulation box (201), and an insulation water cavity (202) is provided inside the insulation box (201). An electric heating tube (203) is fixed inside the insulation water cavity (202), and a box temperature sensor (204) is fixed on the top surface of the insulation box (201).

7. The rapid water temperature control device according to claim 6, characterized in that, The inner wall of the insulated water cavity (202) is made of double-layer stainless steel, and the heating tubes (203) are arranged at equal intervals along the inside of the insulated water cavity (202).

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