A heat exchange equipment test bench

Abstract

The present invention discloses a heat exchange equipment test bench, wherein the water inlet and outlet of a thermostatic bath equipment are respectively connected to the inlet and outlet water pipes of regular water, the number of water pumps turned on and the opening of a bypass valve are adjusted according to the flow rate and pressure under actual use conditions, the thermostatic bath equipment is opened after the pressure flow rate reaches a test value, and the cooling speed, temperature stability and reliability thereof are tested; the cooling water inlet and outlet of the heat exchanger equipment are respectively connected to the inlet and outlet water pipes of a regular water pipeline, the circulation inlet and outlet are respectively connected to the inlet and outlet water pipes of an internal circulation pipeline, the number of water pumps turned on and the opening of a bypass valve are adjusted according to the flow rate and pressure under actual use conditions, the thermostatic bath equipment is opened after the pressure flow rate reaches a test value, and the cooling speed, temperature stability and reliability thereof are tested.

Description

Technical Field

[0001] The invention belongs to the technical field of heat exchange equipment testing devices, and in particular relates to a heat exchange equipment testing platform. Background Art

[0002] Existing heat exchange equipment used for MOCVD field conditions, such as thermostatic bath equipment and heat exchange equipment, need to be tested before leaving the factory to evaluate whether they can meet the use requirements of MOCVD field conditions, so as to better ensure product quality and win customer satisfaction. At present, there are relatively few heat exchange equipment test devices used for MOCVD field conditions, and the structure of the test device is relatively complex, the cost is high, and to a certain extent, it increases the operating burden of the enterprise. Therefore, it is necessary to design a heat exchange equipment test bench with a simple structure and stable operation to test whether the heat exchange equipment used for MOCVD field conditions can meet the use requirements of MOCVD field conditions. Summary of the invention

[0003] The technical problem solved by the invention is to provide a heat exchange equipment test bench with simple structure, low cost, convenient operation and stable operation.

[0004] The present invention adopts the following technical scheme to solve the above technical problems. A heat exchange equipment test bench is characterized in that it includes a constant temperature water tank, a water pump unit, a constant temperature bath equipment test pipeline system and a heat exchanger test pipeline system. The water outlet of the constant temperature water tank is connected to the constant temperature bath equipment test pipeline system and the heat exchanger test pipeline system respectively through a water inlet main pipeline. The constant temperature bath equipment test pipeline system and the heat exchanger test pipeline system are connected to the water inlet of the constant temperature water tank through a return water main pipeline. A water pump unit is provided on the water inlet main pipeline, and a return water valve is provided on the return water main pipeline. The outlet side pipeline of the water inlet main pipe is connected to the inlet side pipeline of the return water main pipe through a water diversion pipeline, and a water diversion valve is provided on the water diversion pipeline; the constant temperature bath equipment test pipeline system is composed of a water inlet pipeline I, a return water pipeline I and at least one group of constant temperature bath equipment connected between the water inlet pipeline I and the return water pipeline I. A flow meter I, a pressure sensor I and a temperature sensor I are provided in sequence on the water inlet pipeline I along the water inlet direction. I, a temperature sensor II and a pressure sensor II are sequentially arranged on the return water pipeline I along the return water direction; the heat exchanger test pipeline system consists of an inlet water pipeline II, a return water pipeline II, an internal circulation inlet water pipeline, an internal circulation return water pipeline and at least one group of heat exchangers connected between the inlet water pipeline II and the return water pipeline II, the internal circulation pipeline of the heat exchanger is respectively connected to the internal circulation inlet water pipeline and the internal circulation return water pipeline, a hot side water tank is connected between the internal circulation inlet water pipeline and the internal circulation return water pipeline, a flow meter II, a pressure sensor III and a temperature sensor III are sequentially arranged on the inlet water pipeline II along the inlet direction, a temperature sensor IV and a pressure sensor IV are sequentially arranged on the return water pipeline II along the return water direction, a flow meter III, a pressure sensor V and a temperature sensor V are sequentially arranged on the upper side of the internal circulation inlet water pipeline in the inlet direction, and a temperature sensor VI and a pressure sensor VI are sequentially arranged on the upper side of the internal circulation return water pipeline in the return water direction.

[0005] It is further defined that the water pump unit is composed of two parallel pipelines, one of which is provided with a water inlet valve I and a water pump I in sequence along the water inlet direction, and the other parallel pipeline is provided with a water inlet valve II, a water pump II and a water pump III in sequence along the water inlet direction, and the water inlet ends and water outlet ends of the two parallel pipelines are respectively connected in series to the water inlet main pipeline.

[0006] It is further defined that 4 groups of water inlet branch pipes and return water branch pipes are respectively provided on the water outlet pipe of the water inlet branch pipe I and on the water inlet pipe of the return water branch pipe I, a constant temperature tank device is provided between the corresponding single group of water inlet branch pipes and return water branch pipes, and each group of water inlet branch pipes and return water branch pipes is provided with a manual valve.

[0007] It is further defined that the outlet pipe of the water inlet pipeline II and the inlet pipe of the return water pipeline II are respectively connected with Y-type three-way joints through manual valves, the Y-type three-way joints on the water inlet pipeline II are respectively connected to the water inlets of the external circulation pipelines of the two groups of heat exchangers through cold side metal hoses, the Y-type three-way joints on the return water pipeline II are respectively connected to the water outlets of the external circulation pipelines of the two groups of heat exchangers through cold side metal hoses, the internal circulation water inlet pipelines are respectively connected to the water inlets of the internal circulation pipelines of the two groups of heat exchangers through hot side metal hoses, the internal circulation return pipelines are respectively connected to the water outlets of the internal circulation pipelines of the two groups of heat exchangers through hot side metal hoses, and a hot side water tank is connected between the internal circulation water inlet pipeline and the internal circulation return pipeline.

[0008] It is further defined that a cooling unit is provided on one side of the constant temperature water tank, and the water inlet of the circulating water pipeline of the cooling unit is connected to the return water main pipeline on the water inlet side of the return valve through the cooling water inlet pipeline, a manual valve is provided on the cooling water inlet pipeline, and the water outlet of the circulating water pipeline of the cooling unit is connected to the water inlet of the constant temperature water tank through the cooling return water pipeline.

[0009] It is further defined that a drain pipeline is provided on the water inlet main pipeline between the constant temperature water tank and the water pump unit, and a drain valve is provided on the drain pipeline.

[0010] Compared with the prior art, the present invention has the following beneficial effects: the present invention has a simple structure, a relatively low failure rate, is simpler and more convenient to operate, runs relatively smoothly, and has more accurate test results. It can better simulate MOCVD field conditions to test and evaluate the performance of heat exchange equipment used in MOCVD field conditions, thereby effectively ensuring the quality of heat exchange equipment for factory products. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of pipeline connection of the present invention;

[0012] Figure 2 yes Figure 1 A top view of

[0013] Figure 3 It is a schematic diagram of the pipeline connection of the internal circulating water pipeline in the present invention;

[0014] Figure 4 It is a schematic diagram of the present invention;

[0015] Figure 5 It is a schematic diagram of the internal circulating water pipeline in the present invention.

[0016] In the figure: 1-constant temperature water tank, 2-return valve, 3-bypass valve, 4-flow meter I, 5-pressure sensor I, 6-temperature sensor I, 7-temperature sensor II, 8-pressure sensor II, 9-hot side water tank, 10-flow meter II, 11-pressure sensor III, 12-temperature sensor III, 13-temperature sensor IV, 14-pressure sensor IV, 15-flow meter III, 16-pressure sensor V, 17-temperature sensor V, 18-temperature sensor VI, 19-pressure sensor VI, 20-water inlet valve I, 21-water pump I, 22-water inlet valve II, 23-water pump II, 24-water pump III, 25-manual valve, 26-cooling unit, 27-drain pipe, 28-drain valve, 29-constant temperature tank equipment, 30-heat exchanger. DETAILED DESCRIPTION

[0017] The technical scheme of the present invention is described in detail in conjunction with the accompanying drawings. A heat exchange equipment test bench comprises a constant temperature water tank 1, a water pump unit, a constant temperature bath equipment test pipeline system and a heat exchanger test pipeline system. The outlet end of the constant temperature water tank 1 is connected to the constant temperature bath equipment test pipeline system and the heat exchanger test pipeline system respectively through a water inlet main pipeline. The constant temperature bath equipment test pipeline system and the heat exchanger test pipeline system are connected to the water inlet end of the constant temperature water tank 1 through a return water main pipeline. A water pump unit is provided on the water inlet main pipeline, and a return water valve 2 is provided on the return water main pipeline. The outlet side pipeline of the water inlet main pipe is connected to the inlet side pipeline of the return water main pipe through a bypass pipeline, and a bypass valve 3 is provided on the bypass pipeline; the constant temperature bath equipment test pipeline system consists of a water inlet pipeline 1, a return water pipeline 1 and at least one group of constant temperature bath equipment 29 connected between the water inlet pipeline 1 and the return water pipeline 1. A flow meter 1 4, a pressure sensor 1 5 and a temperature sensor 1 are provided in sequence on the water inlet pipeline 1 along the water inlet direction. 6, a temperature sensor II 7 and a pressure sensor II 8 are sequentially arranged on the return water direction of the return water pipeline I; the heat exchanger test pipeline system is composed of an inlet water pipeline II, a return water pipeline II, an internal circulation inlet water pipeline, an internal circulation return water pipeline and at least one group of heat exchangers 30 connected between the inlet water pipeline II and the return water pipeline II, the internal circulation pipeline of the heat exchanger is respectively connected to the internal circulation inlet water pipeline and the internal circulation return water pipeline, a hot side water tank 9 is connected between the internal circulation inlet water pipeline and the internal circulation return water pipeline, a flow meter II 10, a pressure sensor III 11 and a temperature sensor III 12 are sequentially arranged on the inlet water pipeline II along the inlet direction, a temperature sensor IV 13 and a pressure sensor IV 14 are sequentially arranged on the return water pipeline II along the return water direction, a flow meter III 15, a pressure sensor V 16 and a temperature sensor V 17 are sequentially arranged on the internal circulation inlet water pipeline along the inlet direction, and a temperature sensor VI 18 and a pressure sensor VI are sequentially arranged on the internal circulation return water pipeline along the return water direction. 19.

[0018] The water pump unit of the present invention is composed of two parallel pipelines, one of which is provided with a water inlet valve I 20 and a water pump I 21 in sequence along the water inlet direction, and the other parallel pipeline is provided with a water inlet valve II 22, a water pump II 23 and a water pump III 24 in sequence along the water inlet direction, and the water inlet ends and the water outlet ends of the two parallel pipelines are respectively connected in series to the water inlet main pipeline.

[0019] According to the present invention, four groups of water inlet branch pipes and return water branch pipes are respectively arranged on the water outlet pipe of the water inlet branch pipe I and on the water inlet pipe of the return water branch pipe I, and a thermostatic tank device is arranged between the corresponding single group of water inlet branch pipes and return water branch pipes, and a manual valve 25 is arranged on each group of water inlet branch pipes and return water branch pipes.

[0020] The outlet pipe of the water inlet pipeline II and the inlet pipe of the return water pipeline II described in the present invention are respectively connected with Y-type three-way joints through manual valves, the Y-type three-way joints on the water inlet pipeline II are respectively connected to the water inlets of the external circulation pipelines of the two groups of heat exchangers through cold edge metal hoses, the Y-type three-way joints on the return water pipeline II are respectively connected to the water outlets of the external circulation pipelines of the two groups of heat exchangers through cold edge metal hoses, the internal circulation water inlet pipeline is respectively connected to the water inlets of the internal circulation pipelines of the two groups of heat exchangers through hot edge metal hoses, the internal circulation return pipeline is respectively connected to the water outlets of the internal circulation pipelines of the two groups of heat exchangers through hot edge metal hoses, and a hot edge water tank 9 is connected between the internal circulation water inlet pipeline and the internal circulation return pipeline.

[0021] A cooling unit 26 is provided on one side of the constant temperature water tank described in the present invention. The water inlet of the circulating water pipeline of the cooling unit is connected to the return water main pipeline on the water inlet side of the return valve 2 through the cooling water inlet pipeline. A manual valve is provided on the cooling water inlet pipeline. The water outlet of the circulating water pipeline of the cooling unit 26 is connected to the water inlet of the constant temperature water tank 1 through the cooling return water pipeline.

[0022] A drain pipe 27 is provided on the water inlet main pipe between the constant temperature water tank 1 and the water pump unit of the present invention, and a drain valve 28 is provided on the drain pipe 27 .

[0023] The principle of the present invention is described as follows:

[0024] 1. The main function of the test bench of the present invention is to simulate the working conditions of MOCVD on-site, strictly control the cooling water usage (pressure, flow, temperature) of the test equipment, the maximum test pressure is 2MPa, the maximum test flow is 210L / min, and 16 channels of temperature, pressure, and flow can be collected simultaneously. Up to four thermostatic baths and two heat exchangers can be tested simultaneously.

[0025] 2. The flow and pressure regulation of the present invention selects the number of water pumps to be opened according to the operating pressure and flow under actual working conditions. A single water pump can provide a flow of 100L / min and a pressure of 6bar. When the water inlet valve and the return valve are fully opened, the bypass valve opening is adjusted to accurately adjust the flow. The larger the bypass valve opening, the smaller the flow. When the pressure requirement cannot be met when the three water pumps are turned on at the same time, the water inlet valve and the return valve are gradually closed, and the bypass valve opening is adjusted to achieve the required pressure and flow.

[0026] 3. The temperature regulation of the present invention, when there are fewer operating devices, relies on the larger volume of the constant temperature water tank to perform natural heat dissipation to stabilize the circulating water temperature in the pipeline; when there are more operating devices or the ambient temperature is high, the forced air cooling of the cooling unit can be turned on for auxiliary cooling.

[0027] Instructions for use of the present invention:

[0028] 1. Test piping system of thermostatic bath equipment: Connect the water inlet and outlet of the thermostatic bath equipment to the regular water inlet and outlet pipes respectively, adjust the number of water pump openings and the opening of the bypass valve according to the flow and pressure under actual use conditions, open the thermostatic bath equipment after the pressure and flow reach the test value, and test its cooling speed, temperature stability and reliability.

[0029] 2. Heat exchanger test piping system: Connect the cooling water inlet and outlet of the heat exchanger equipment to the inlet and outlet pipes of the regular water pipeline respectively, and connect the circulation inlet and outlet to the inlet and outlet pipes of the internal circulation pipeline respectively. Adjust the number of water pump openings and the opening of the bypass valve according to the flow and pressure under actual operating conditions. Open the thermostatic bath equipment after the pressure and flow reach the test value to test its cooling speed, temperature stability and reliability.

[0030] The basic principles, main features and advantages of the present invention are shown and described above. Without departing from the spirit and scope of the present invention, the present invention may also be subject to various changes and improvements, which all fall within the scope of the present invention to be protected.

Claims

1. A heat exchange equipment test bench, characterized in that It includes a constant temperature water tank, a water pump unit, a constant temperature bath equipment test pipeline system and a heat exchanger test pipeline system. The outlet of the constant temperature water tank is connected to the constant temperature bath equipment test pipeline system and the heat exchanger test pipeline system through a main water inlet pipeline. The constant temperature bath equipment test pipeline system and the heat exchanger test pipeline system are connected to the water inlet of the constant temperature water tank through a main return pipeline. A water pump unit is provided on the main water inlet pipeline, and a return valve is provided on the main return pipeline. The outlet side pipeline of the main water inlet pipe is connected to the inlet side pipeline of the main return pipe through a water distribution pipeline, and a water distribution valve is provided on the water distribution pipeline; Constant temperature bath equipment test pipeline system The heat exchanger test pipeline system is composed of an inlet water pipeline I, a return water pipeline I and at least one set of thermostatic bath equipment connected between the inlet water pipeline I and the return water pipeline I. A flow meter I, a pressure sensor I and a temperature sensor I are arranged in sequence on the inlet water pipeline I along the water inlet direction. A temperature sensor II and a pressure sensor II are arranged in sequence on the return water pipeline I along the water return direction. The heat exchanger test pipeline system is composed of an inlet water pipeline II, a return water pipeline II, an internal circulation inlet water pipeline, an internal circulation return water pipeline and at least one set of heat exchangers connected between the inlet water pipeline II and the return water pipeline II. The internal circulation of the heat exchanger The ring pipeline is connected to the inner circulation water inlet pipeline and the inner circulation water return pipeline respectively, a hot side water tank is connected between the inner circulation water inlet pipeline and the inner circulation water return pipeline, a flow meter II, a pressure sensor III and a temperature sensor III are arranged in sequence on the water inlet pipeline II along the water inlet direction, a temperature sensor IV and a pressure sensor IV are arranged in sequence on the water return pipeline II along the water return direction, a flow meter III, a pressure sensor V and a temperature sensor V are arranged in sequence on the upper side of the inner circulation water inlet pipeline in the water inlet direction, a temperature sensor VI and a pressure sensor VI are arranged in sequence on the upper side of the inner circulation water return pipeline in the water return direction; The water pump unit is composed of two parallel pipelines, one of which is provided with an inlet valve I and a water pump I in sequence along the water inlet direction, and the other parallel pipeline is provided with an inlet valve II, a water pump II and a water pump III in sequence along the water inlet direction, and the water inlet ends and the water outlet ends of the two parallel pipelines are respectively connected in series to the main water inlet pipeline; 4 groups of water inlet branch pipelines and return water branch pipelines are respectively provided on the water outlet pipeline of the water inlet branch pipeline I and on the water inlet pipeline of the return water branch pipeline I, a thermostatic tank device is provided between the corresponding single group of water inlet branch pipelines and return water branch pipelines, and each group of water inlet branch pipelines and return water branch pipelines is provided with a manual valve.

2. The heat exchange equipment test bench according to claim 1, characterized in that: The outlet pipe of the water inlet pipeline II and the inlet pipe of the return water pipeline II are respectively connected with Y-type three-way joints through manual valves, the Y-type three-way joints on the water inlet pipeline II are respectively connected to the water inlets of the external circulation pipelines of the two groups of heat exchangers through cold-side metal hoses, the Y-type three-way joints on the return water pipeline II are respectively connected to the water outlets of the external circulation pipelines of the two groups of heat exchangers through cold-side metal hoses, the internal circulation water inlet pipelines are respectively connected to the water inlets of the internal circulation pipelines of the two groups of heat exchangers through hot-side metal hoses, the internal circulation return pipelines are respectively connected to the water outlets of the internal circulation pipelines of the two groups of heat exchangers through hot-side metal hoses, and a hot-side water tank is connected between the internal circulation water inlet pipeline and the internal circulation return pipeline.

3. The heat exchange equipment test bench according to claim 1, characterized in that: A cooling unit is provided on one side of the constant temperature water tank. The water inlet of the circulating water pipeline of the cooling unit is connected to the return water main pipeline on the water inlet side of the return valve through the cooling water inlet pipeline. A manual valve is provided on the cooling water inlet pipeline. The water outlet of the circulating water pipeline of the cooling unit is connected to the water inlet of the constant temperature water tank through the cooling return water pipeline.

4. The heat exchange equipment test bench according to claim 1, characterized in that: A drain pipeline is provided on the water inlet main pipeline between the constant temperature water tank and the water pump unit, and a drain valve is provided on the drain pipeline.

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