High and low temperature hot and cold water heater with automatic flow distribution function

Abstract

This application relates to a high and low temperature hot and cold water heater with automatic flow distribution function, comprising a hot and cold water heater body and an automatic flow distribution device. The hot and cold water heater body has a single-channel structure. The automatic flow distribution device includes a support frame and a distribution unit. The distribution unit includes a main inlet pipe, inlet branch pipes, outlet branch pipes, a main outlet pipe, and a return pipe. The main inlet pipe is connected to the outlet of the hot and cold water heater body. At least two inlet branch pipes are provided on the main inlet pipe. The main outlet pipe is connected to the inlet of the hot and cold water heater body. At least two outlet branch pipes are provided on the main outlet pipe. The sample to be tested is connected between the inlet branch pipes and the outlet branch pipes. A three-way regulating valve is installed on the main inlet pipe. This application connects a multi-channel automatic flow distribution device to a conventional single-channel hot and cold water heater body to meet the need for simultaneous testing of multiple samples.

Description

Technical Field

[0001] This application relates to the field of testing equipment, specifically to a high and low temperature hot and cold water heater with automatic flow distribution function. Background Technology

[0002] Many tests for the three core components of new energy vehicles require the samples to be in a powered-on, loaded state. At the same time, it is necessary to simulate actual working conditions by cooling or heating the samples with coolant. There are also specific requirements for the temperature and flow rate of the coolant. The number of test samples often ranges from one to six. Therefore, high and low temperature chillers need to have multiple independent output channels with adjustable flow rates to provide coolant to multiple samples. The conventional method is to purchase high and low temperature chillers with multiple independent external circulating water pumps.

[0003] The addition of an external circulating water pump increases the heat load (a magnetic pump generates approximately 2kW of heat at -40℃). To overcome this heat generation without affecting the low-temperature cooling capacity of the high and low temperature water chiller, a compressor unit must be added to obtain a larger cooling capacity. This results in a larger compressor unit with more output channels, making the equipment more expensive and bulkier, thus reducing its efficiency. In practical applications, high and low temperature water chillers are used as the main auxiliary equipment in experiments in many scenarios, requiring a large number of units that are flexible and easy to move. Utility Model Content

[0004] To overcome the above-mentioned defects, this application provides a high and low temperature hot and cold water heater with automatic flow distribution function. This hot and cold water heater connects a multi-channel automatic flow distribution device to a common single-channel hot and cold water heater body to form a high and low temperature hot and cold water heater with automatic flow distribution function, so as to meet the needs of simultaneous testing of multiple samples. It does not require modification of the hot and cold water heater body, has low manufacturing cost, and is highly practical.

[0005] The technical solution adopted by this application to solve its technical problem is:

[0006] A high-low temperature hot and cold water heater with automatic flow distribution function includes a hot and cold water heater body and an automatic flow distribution device. The hot and cold water heater body has a single-channel structure. The automatic flow distribution device includes a support frame and a distribution unit fixedly installed on the support frame. The distribution unit includes a main inlet pipe, an inlet branch pipe, an outlet branch pipe, a main outlet pipe, and a return pipe. The main inlet pipe is connected to the outlet of the hot and cold water heater body. The main inlet pipe has at least two inlet branch pipes. The main outlet pipe is connected to the inlet of the hot and cold water heater body. The main outlet pipe has at least two outlet branch pipes. A sample to be tested is connected between the inlet branch pipe and the outlet branch pipe. A three-way regulating valve is installed on the main inlet pipe. The first end of the return pipe is connected to the three-way regulating valve, and the second end of the return pipe is connected to the main outlet pipe.

[0007] Optionally, a branch pipe is installed on the main water inlet pipe, and the inlet branch pipe is connected to the branch pipe.

[0008] Optionally, an inlet manual valve and a main flow meter are installed on the main water inlet pipe. The inlet manual valve is installed between the hot and cold water heater body and the three-way regulating valve. The main flow meter is installed between the three-way regulating valve and the branch pipe. An inlet temperature sensor and an inlet pressure sensor are installed on the branch pipe.

[0009] Optionally, a water collection pipe is installed on the main water outlet pipe, and the outlet branch pipe is connected to the water collection pipe.

[0010] Optionally, an outlet branch manual valve is installed on the outlet branch pipe, an outlet temperature sensor and an outlet pressure sensor are installed on the water collection pipe, and an outlet manual valve is installed on the main water outlet pipe.

[0011] Optionally, the support frame is made of aluminum profiles connected by insertion. The water distribution pipe and the water collection pipe are vertically installed on the support frame, and the inlet branch pipe and the outlet branch pipe are horizontally installed on the support frame. The water distribution pipe, the inlet branch pipe, the outlet branch pipe and the water collection pipe are all fixedly installed on the aluminum profile by fasteners.

[0012] Optionally, a branch flow regulating valve, a branch flow meter, an inlet branch manual valve, a branch pressure sensor, and a branch temperature sensor are installed on the inlet branch pipe.

[0013] Optionally, the automatic flow distribution device further includes a control unit, which is fixedly installed on the support frame and is used to control the operation of the distribution unit.

[0014] Optionally, the main water inlet pipe is provided with six inlet branch pipes, and the main water outlet pipe is provided with six outlet branch pipes, with each inlet branch pipe and each outlet branch pipe corresponding to the other.

[0015] The beneficial effects of this application are as follows: This application connects a multi-channel automatic flow distribution device to a common single-channel hot and cold water heater body to form a high and low temperature hot and cold water heater with automatic flow distribution function, so as to meet the needs of simultaneous testing of multiple samples. Since the flow is controlled by a valve in the automatic flow distribution device, the heat generated is much lower than that generated by a single water pump control. Therefore, the power of the single-channel hot and cold water heater compressor unit used is much smaller than that of the compressor unit of a traditional multi-channel hot and cold water heater with the same number of channels. This reduces the manufacturing cost of the hot and cold water heater body, reduces the size of the equipment, facilitates the movement of the equipment, and improves the efficiency of product use. Attached Figure Description

[0016] Figure 1 This is a simplified schematic diagram of the high and low temperature hot and cold water heater in this application;

[0017] Figure 2 This is one of the structural schematic diagrams of the automatic flow distribution device in this application;

[0018] Figure 3 This is the second schematic diagram of the automatic flow distribution device in this application;

[0019] Figure 4 This is the third schematic diagram of the automatic flow distribution device in this application;

[0020] Figure 5 This is the fourth schematic diagram of the automatic flow distribution device in this application;

[0021] In the diagram: 100-Support frame, 110-Fixing component, 200-Distribution unit, 210-Main inlet pipe, 211-Inlet manual valve, 212-Three-way regulating valve, 213-Main flow meter, 220-Divider pipe, 221-Inlet temperature sensor, 222-Inlet pressure sensor, 230-Inlet branch pipe, 231-Branch flow regulating valve, 232-Branch flow meter, 233-Inlet branch manual valve, 234-Branch pressure sensor, 235-Branch temperature sensor, 240-Outlet branch pipe, 241-Outlet branch manual valve, 250-Collection pipe, 251-Outlet temperature sensor, 252-Outlet pressure sensor, 260-Main outlet pipe, 261-Outlet manual valve, 270-Return pipe, 300-Control unit, 400-Hot water / cold water heater body, 500-Sample. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the embodiments of this application. Obviously, the embodiments described in this application are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such uses of the terms can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0024] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0025] Example: Figure 1-5 As shown, Figure 1The arrows in the diagram indicate the direction of water flow. A high-low temperature hot and cold water heater with automatic flow distribution function includes a hot and cold water heater body 400 and an automatic flow distribution device. The hot and cold water heater body 400 has a single-channel structure, meaning it has only one output channel, i.e., only one liquid outlet and one liquid return pipe. The automatic flow distribution device includes a support frame 100 and a distribution unit 200 fixedly installed on the support frame 100. The distribution unit 200 includes a main inlet pipe 210, an inlet branch pipe 230, an outlet branch pipe 240, a main outlet pipe 260, and a return pipe 270. The main inlet pipe 210... A 10 is connected to the liquid outlet of the chiller / hot water heater body 400. The main inlet pipe 210 has at least two inlet branch pipes 230. The main outlet pipe 260 is connected to the liquid inlet of the chiller / hot water heater body 400. The main outlet pipe 260 has at least two outlet branch pipes 240. The sample 500 to be tested is connected between the inlet branch pipes 230 and the outlet branch pipes 240. A three-way regulating valve 212 is installed on the main inlet pipe 210. The first end of the return pipe 270 is connected to the three-way regulating valve 212, and the second end of the return pipe 270 is connected to the main outlet pipe 260. The chiller / hot water heater body 400 can be a common single-channel high / low temperature chiller / hot water heater. A high / low temperature chiller / hot water heater is a device that can simultaneously cool and heat. Through the cooperation of a compressor and an electric heating module, the water temperature can be precisely controlled. Its core parameters include cooling capacity, heating capacity, temperature accuracy, and flow range, making it suitable for multiple fields such as laboratories, industry, medical, and new energy. Since high and low temperature hot and cold water heaters are existing technologies in this field, they will not be described in detail here.

[0026] In use, the automatic flow distribution device connects one, two, or more samples 500 as needed. Each sample 500 is connected to an inlet branch pipe 230 and an outlet branch pipe 240. Appropriately sized water enters the main inlet pipe 210 from the outlet of the hot and cold water heater body 400, flows into the inlet branch pipe 230 to test the sample 500, and then flows out of the sample 500 to the outlet branch pipe 240. Finally, it returns to the hot and cold water heater body 400 through the main outlet pipe 260 and the inlet of the hot and cold water heater body 400 for recirculation. The water flow in each pipe of the automatic flow distribution device is controlled by valves. A three-way regulating valve 212 is installed on the main inlet pipe 210. The appropriate total flow is obtained by controlling the opening of the three-way regulating valve 212. A portion of the flow from the three-way regulating valve 212 returns to the hot and cold water heater body 400 through the return pipe 270 and the main outlet pipe 260.

[0027] In this application, a multi-channel automatic flow distribution device is connected to a conventional single-channel hot and cold water heater body to form a high and low temperature hot and cold water heater with automatic flow distribution function, so as to meet the needs of simultaneous testing of multiple samples (500). Since the flow is controlled by a valve in the automatic flow distribution device, the heat generated is much lower than that of a single water pump control. Therefore, the power of the single-channel hot and cold water heater compressor unit used is much smaller than that of the compressor unit of a traditional multi-channel hot and cold water heater with the same number of channels. This reduces the manufacturing cost of the hot and cold water heater body, reduces the size of the equipment, facilitates the movement of the equipment, and improves the efficiency of product use.

[0028] This application is applicable to existing single-channel high and low temperature hot and cold water heaters, meaning it requires no modification to existing heaters, making it highly practical and effectively solving real-world problems. This application provides an automatic flow distribution device that works with large-flow single-channel high and low temperature hot and cold water heaters to achieve multiple channel outputs and automatically adjusts the stable output based on the set flow value for each channel.

[0029] This application addresses the simultaneous testing of multiple electric components (battery, motor, and electronic control system) of new energy vehicles. It describes a method for distributing and automatically adjusting the coolant output from a single-channel high-low temperature chiller according to the number of test samples and flow requirements to meet testing needs. During testing, the automatic flow distribution device can be connected to any compliant single-channel high-low temperature chiller.

[0030] like Figure 1 and Figure 3 As shown, a branch pipe 220 is installed on the main inlet pipe 210, and the inlet branch pipe 230 is connected to the branch pipe 220. That is, water from the main inlet pipe 210 enters the branch pipe 220, and then enters the inlet branch pipe 230 through the branch pipe 220. The branch pipe 220 is made of rigid material and is fixed on the support frame 100 to improve the stability of the distribution unit 200 during operation.

[0031] like Figure 1 As shown, an inlet manual valve 211 and a main flow meter 213 are installed on the main water inlet pipe 210. The inlet manual valve 211 is installed between the hot and cold water unit 400 and the three-way regulating valve 212. The main flow meter 213 is installed between the three-way regulating valve 212 and the distribution pipe 220. An inlet temperature sensor 221 and an inlet pressure sensor 222 are installed on the distribution pipe 220. The inlet manual valve 211 connects the hot and cold water unit 400 and the distribution unit 200. The three-way regulating valve 212 controls the total flow rate entering the distribution pipe 220. The main flow meter 213 detects and records this total flow rate. The inlet temperature sensor 221 and the inlet pressure sensor 222 monitor the water flow in the distribution pipe 220 in real time.

[0032] like Figure 1 and Figure 3 As shown, a water collection pipe 250 is installed on the main water outlet pipe 260, and the outlet branch pipe 240 is connected to the water collection pipe 250. That is, water from the outlet branch pipe 240 enters the water collection pipe 250, then flows through the water collection pipe 250 into the main water outlet pipe 260, and finally returns to the hot and cold water heater body 400. The water collection pipe 250 is made of rigid material and is fixed to the support frame 100 to improve the operational stability of the distribution unit 200.

[0033] like Figure 1 As shown, an outlet branch manual valve 241 is installed on the outlet branch pipe 240, an outlet temperature sensor 251 and an outlet pressure sensor 252 are installed on the water collection pipe 250, and an outlet manual valve 261 is installed on the main outlet pipe 260. The manual valves are used to control the water flow in the corresponding pipes, and the outlet temperature sensor 251 and outlet pressure sensor 252 are used to monitor the water flow in the water collection pipe 250 in real time.

[0034] like Figure 2-4 As shown, the support frame 100 is constructed from aluminum profiles. The water distribution pipe 220 and the water collection pipe 250 are vertically mounted on the support frame 100, while the inlet branch pipe 230 and the outlet branch pipe 240 are horizontally mounted on the support frame 100. The water distribution pipe 220, the inlet branch pipe 230, the outlet branch pipe 240, and the water collection pipe 250 are all fixedly mounted to the aluminum profile using fasteners 110. Casters are installed at the bottom of the support frame 100 to facilitate the movement of the automatic flow distribution device. The fasteners 110 are fixedly inserted into the aluminum profile and have mounting grooves for inserting pipe fittings. Screws are used to lock the fasteners in place, clamping the pipe fittings and improving the stability of the pipe installation.

[0035] like Figure 1 and Figure 2 As shown, the inlet branch pipe 230 is equipped with a branch flow regulating valve 231, a branch flow meter 232, an inlet branch manual valve 233, a branch pressure sensor 234, and a branch temperature sensor 235. These components are used to rationally control the flow rate of each branch and to monitor the water flow in the branches in real time.

[0036] like Figure 1-3As shown, the automatic flow distribution device also includes a control unit 300, which is fixedly mounted on the support frame 100. The control unit 300 is used to control the operation of the distribution unit 200. The control unit 300 includes a control panel and a PLC control system, which is used to control the operation of the distribution unit 200. The control panel and PLC control system use feedback from each flow meter to control the opening size of the three-way regulating valve 212 to adjust the flow rate, and can simultaneously record the flow rate, temperature, and pressure values ​​of the water in each channel. This application features high real-time dynamic flow rate adjustment accuracy, and each channel is equipped with a pressure sensor to provide pressure limiting protection for the test sample.

[0037] like Figure 1 As shown, the main inlet pipe 210 is equipped with six inlet branch pipes 230, and the main outlet pipe 260 is equipped with six outlet branch pipes 240, with each inlet branch pipe 230 and outlet branch pipe 240 corresponding one-to-one. That is, the branch pipe 220 has six inlet branch pipes 230, and the collection pipe 250 has six outlet branch pipes 240. Each pair of inlet branch pipes 230 and outlet branch pipes 240 can be connected to a sample 500 to be tested. In this embodiment, the six inlet branch pipes 230 and outlet branch pipes 240 can meet the actual testing needs of one to six samples per group in practical applications. During testing, one to six samples 500 can be connected according to the actual situation.

[0038] The operating principle of this application is as follows: The outlet of the hot and cold water heater body 400 is connected to the inlet manual valve 211 of the distribution unit 200. The main flow meter 213 senses the total flow. The control unit 300 adjusts the opening of the three-way regulating valve 212 according to the flow of each branch to obtain the total flow. The branch flow meter 232 senses the flow of the corresponding branch. The control unit 300 adjusts the opening of the branch flow regulating valve 231 according to the set flow of that branch to control the flow. Other branches use the same control method. When each branch is adjusted, it will cause disturbance to the flow of other branches. The control unit 300 will adjust and suppress the disturbance in time to ensure control accuracy. Since this application distributes a single-channel high and low temperature hot and cold water heater to multiple channels, the high and low temperature hot and cold water heater body with the largest flow rate should be selected according to the number of test samples and the required flow rate.

[0039] It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the scope of protection of this patent application shall be determined by the appended claims.

Claims

1. A high and low temperature hot and cold water heater with automatic flow distribution function, characterized in that: The system includes a hot and cold water heater body (400) and an automatic flow distribution device. The hot and cold water heater body (400) has a single-channel structure. The automatic flow distribution device includes a support frame (100) and a distribution unit (200) fixedly installed on the support frame (100). The distribution unit (200) includes a main inlet pipe (210), an inlet branch pipe (230), an outlet branch pipe (240), a main outlet pipe (260), and a return pipe (270). The main inlet pipe (210) is connected to the outlet of the hot and cold water heater body (400). The main inlet pipe (210) is equipped with at least one... There are two inlet branch pipes (230), the main outlet pipe (260) is connected to the liquid inlet of the hot and cold water machine body (400), the main outlet pipe (260) is provided with at least two outlet branch pipes (240), the sample to be tested (500) is connected between the inlet branch pipe (230) and the outlet branch pipe (240), a three-way regulating valve (212) is installed on the main inlet pipe (210), the first end of the return pipe (270) is connected to the three-way regulating valve (212), and the second end of the return pipe (270) is connected to the main outlet pipe (260).

2. The high-low temperature water heater with automatic flow distribution function according to claim 1, characterized in that: A branch pipe (220) is installed on the main water inlet pipe (210), and the inlet branch pipe (230) is connected to the branch pipe (220).

3. The high-low temperature water heater with automatic flow distribution function according to claim 2, characterized in that: A manual inlet valve (211) and a main flow meter (213) are installed on the main water inlet pipe (210). The manual inlet valve (211) is installed between the hot and cold water machine body (400) and the three-way regulating valve (212). The main flow meter (213) is installed between the three-way regulating valve (212) and the branch pipe (220). An inlet temperature sensor (221) and an inlet pressure sensor (222) are installed on the branch pipe (220).

4. The high-low temperature water heater with automatic flow distribution function according to claim 2, characterized in that: A water collection pipe (250) is installed on the main water outlet pipe (260), and the outlet branch pipe (240) is connected to the water collection pipe (250).

5. The high-low temperature water heater with automatic flow distribution function according to claim 4, characterized in that: An outlet branch manual valve (241) is installed on the outlet branch pipe (240), an outlet temperature sensor (251) and an outlet pressure sensor (252) are installed on the water collection pipe (250), and an outlet manual valve (261) is installed on the main outlet pipe (260).

6. The high-low temperature water heater with automatic flow distribution function according to claim 4, characterized in that: The support frame (100) is made of aluminum profiles. The water distribution pipe (220) and the water collection pipe (250) are vertically installed on the support frame (100). The inlet branch pipe (230) and the outlet branch pipe (240) are horizontally installed on the support frame (100). The water distribution pipe (220), the inlet branch pipe (230), the outlet branch pipe (240), and the water collection pipe (250) are all fixedly installed on the aluminum profiles by fasteners (110).

7. The high-low temperature water heater with automatic flow distribution function according to claim 1, characterized in that: The inlet branch pipe (230) is equipped with a branch flow regulating valve (231), a branch flow meter (232), an inlet branch manual valve (233), a branch pressure sensor (234), and a branch temperature sensor (235).

8. The high-low temperature water heater with automatic flow distribution function according to claim 1, characterized in that: The automatic flow distribution device also includes a control unit (300), which is fixedly installed on the support frame (100) and is used to control the operation of the distribution unit (200).

9. The high-low temperature water heater with automatic flow distribution function according to claim 1, characterized in that: The main inlet pipe (210) is provided with six inlet branch pipes (230), and the main outlet pipe (260) is provided with six outlet branch pipes (240). The inlet branch pipes (230) and the outlet branch pipes (240) correspond one-to-one.

Images