Auxiliary system for testing high-temperature unit

Abstract

The utility model discloses an auxiliary system for testing a high-temperature unit, and relates to the technical field of heat exchange testing systems. The first heat exchange line is communicated with the water inlet end and the water outlet end of the condenser; the first detection unit is arranged on the first heat exchange line; the condenser main water pump is mounted on the first heat exchange line; an evaporator; the second heat exchange line is communicated with the water inlet end and the water outlet end of the evaporator, and the second heat exchange line is connected with the first heat exchange line in parallel; the second detection unit is arranged on the second heat exchange line; the evaporator main water pump is mounted on the second heat exchange line; and the heat exchange unit communicates with the first heat exchange line and the second heat exchange line. The heat pump unit solves the technical problem that an existing heat pump unit is inconvenient to detect.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange test systems, in particular to an auxiliary system for high-temperature unit testing. Background Art

[0002] Heat pump systems are used in many industrial fields and can be used for industrial waste heat recovery. At the same time, the most common heat pump system is the water source heat pump unit. The water source heat pump unit has a certain investment cost and requires long-term operation. Therefore, after a period of use, the water source heat pump unit needs to be performance tested to determine the working condition of the entire unit.

[0003] The existing detection method usually directly connects the water source of the entire system to an external source to detect the working condition of the entire system. However, the water temperature of the system is often relatively high, which is not suitable for direct external connection. It is easy to cause damage to the test bench and has certain safety hazards. Utility Model Content

[0004] The purpose of the utility model is to provide an auxiliary system for testing a high-temperature unit, which solves the technical problem of inconvenient detection of heat pump units in the prior art.

[0005] The present application discloses an auxiliary system for testing a high-temperature unit, including:

[0006] condenser;

[0007] a first heat exchange circuit, connected to the water inlet and outlet of the condenser;

[0008] a first detection unit, disposed on the first heat exchange circuit;

[0009] a condenser main water pump, installed on the first heat exchange circuit;

[0010] evaporator;

[0011] a second heat exchange circuit, connected to the water inlet and outlet of the evaporator, and the second heat exchange circuit is connected in parallel with the first heat exchange circuit;

[0012] a second detection unit, disposed on the second heat exchange circuit;

[0013] an evaporator main water pump, installed on the second heat exchange circuit;

[0014] The heat exchange unit is in communication with the first heat exchange circuit and the second heat exchange circuit.

[0015] The present application connects a heat exchange unit in the unit system to perform heat exchange processing, and then detects and calculates the liquid after the heat exchange, so as to know the working status of the entire high-temperature unit.

[0016] Based on the above technical solution, the embodiment of the present application can also be improved as follows:

[0017] Furthermore, the heat exchange unit is a plate heat exchanger;

[0018] The water temperature at the water inlet end of the plate heat exchanger is no higher than 32° C. The beneficial effect of this step is that heat exchange is performed through the plate heat exchanger, thereby facilitating subsequent coordination with the test bench to calculate the working conditions of the entire unit.

[0019] Furthermore, the heat exchange power of the plate heat exchanger is 340KW. The beneficial effect of adopting this step is that sufficient heat exchange power can ensure that the temperature of the liquid matched with the test bench is not too high.

[0020] Furthermore, a control valve is connected in series on the second heat exchange circuit. The beneficial effect of this step is to control the flow of liquid in the entire unit through the control valve.

[0021] Furthermore, the first detection unit includes:

[0022] a first temperature sensor connected in series with the water inlet end of the condenser;

[0023] a second temperature sensor connected in series with the water outlet of the condenser;

[0024] The first electromagnetic flowmeter is installed in series at the water outlet of the condenser. The beneficial effect of this step is to detect temperature and flow-related data through multiple detection devices, which is convenient for subsequent use.

[0025] Furthermore, the second detection unit includes:

[0026] a third temperature sensor connected in series with the water inlet end of the evaporator;

[0027] a fourth temperature sensor connected in series with the water outlet end of the evaporator;

[0028] The second electromagnetic flowmeter is installed in series at the water outlet of the evaporator. The beneficial effect of this step is to detect temperature and flow-related data through multiple detections, which is convenient for subsequent use.

[0029] Furthermore, a gas pressure stabilizing tank is connected in series on the second heat exchange circuit.

[0030] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0031] The present application adds a plate heat exchanger in the unit system for liquid heat exchange, and then detects the liquid that absorbs heat, so that the working condition of the unit can be known, and a preliminary judgment can be made based on the temperature change amplitude, avoiding the disadvantages of directly detecting high-temperature liquid in the entire unit, and enabling safer and more convenient unit performance testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 This is a structural diagram of an auxiliary system for testing a high-temperature unit according to a specific embodiment of the present utility model;

[0034] 1-Condenser; 2-First heat exchange circuit; 3-First detection unit; 4-Condenser main water pump; 5-Evaporator; 6-Second heat exchange circuit; 7-Second detection unit; 8-Evaporator main water pump; 9-Heat exchange unit; 10-Control valve; 11-Gas pressure regulating tank;

[0035] 301 - first temperature sensor; 302 - second temperature sensor; 303 - first electromagnetic flowmeter;

[0036] 701 - third temperature sensor; 702 - fourth temperature sensor; 703 - second electromagnetic flowmeter. DETAILED DESCRIPTION

[0037] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0038] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which this utility model belongs.

[0039] In this application, unless otherwise specified or limited, the terms "installed," "connected," "fixed," and the like should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0040] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0041] Example:

[0042] like Figure 1 As shown, the present application discloses an auxiliary system for testing high-temperature units. The high-temperature unit is mainly used on screw machines. When in use, it is necessary to judge the cooling capacity of the corresponding unit. However, the temperature at this time is high, and the high-temperature liquid cannot be directly sent to the test bench for testing. Therefore, heat exchange is performed through this application, connected to the test bench, and the temperature difference between the inlet and outlet water of the plate heat exchanger is detected and calculated, so that the cooling capacity of the unit can be known.

[0043] The specific structure of this application includes:

[0044] Condenser 1, which cooperates with the subsequent evaporator 5 to function as a high-temperature unit;

[0045] A first heat exchange circuit 2 is connected to the water inlet and outlet of the condenser 1. The first heat exchange circuit 2 is composed of two pipes and is specifically used to achieve the flow of liquid. The details will not be repeated here.

[0046] A first detection unit 3 is provided on the first heat exchange circuit 2 and is used to detect the temperature difference between the inlet and outlet water of the condenser, so as to facilitate subsequent calculations and obtain the heat exchange effect of the condenser;

[0047] A condenser main water pump 4 is installed on the first heat exchange circuit 2, and the condenser main water pump 4 facilitates the flow of liquid in the first heat exchange circuit 2;

[0048] Evaporator 5, like condenser 1, is also part of the unit, forming a high-temperature unit;

[0049] The second heat exchange circuit 6 is connected to the water inlet and outlet of the evaporator 5 and cooperates with the evaporator 5 during normal operation. Similarly, the second heat exchange circuit 6 is also composed of multiple circuits for realizing the flow of liquid. The specific connection method is existing and will not be repeated here.

[0050] A second detection unit 7 is provided on the second heat exchange circuit 6. The second detection unit 7 is also used to detect corresponding temperature difference, flow rate and other data in the future, so as to facilitate the calculation of the working effect of the corresponding machine when the entire unit is working;

[0051] An evaporator main water pump 8 is installed on the second heat exchange circuit 6 and is used to achieve a stable flow of liquid related to the evaporator;

[0052] The heat exchange unit 9 is connected to the first heat exchange circuit 2 and the second heat exchange circuit 6. The heat exchange unit 9 is used to realize heat exchange of high-temperature liquid, thereby facilitating the heating of the liquid on the other side. This side cooperates with the test bench to perform corresponding data detection to obtain the working conditions of the entire unit.

[0053] To further explain the structure of this application, this application is to test the working capacity of the entire unit. Specifically, the unit includes a condenser, a first heat exchange circuit, a second heat exchange circuit and an evaporator, etc. The flow temperature of the liquid in the entire circuit is relatively high and is not suitable for being directly sent to the test bench for testing. Therefore, this application installs a heat exchange unit 9 in the circuit for heat exchange, so that the temperature of the lower temperature liquid can be increased and enter the test bench for testing, thereby calculating the heat exchange condition of the entire unit.

[0054] Specifically, the heat exchange unit 9 is a plate heat exchanger;

[0055] The water temperature at the water inlet end of the plate heat exchanger is not higher than 32° C. By controlling the inlet temperature, it is possible to avoid the liquid temperature being too high during detection, thereby better detecting the working heat exchange condition of the entire unit.

[0056] Specifically, the heat exchange power of the plate heat exchanger is 340KW. It has sufficient heat exchange power to be placed inside this unit system. For example, in one embodiment, the water inlet temperature of the condenser in this application can reach 110°C, and the water outlet temperature can reach 120°C; similarly, the water inlet temperature of the evaporator can reach 50°C, and the water outlet temperature can reach 40°C. Such liquid temperatures are not suitable for direct testing and calculation on the test bench.

[0057] Specifically, the second heat exchange circuit 6 is further connected in series with a control valve 10 , and there are multiple control valves 10 for controlling the entire circuit.

[0058] Specifically, the first detection unit 3 includes:

[0059] A first temperature sensor 301 is connected in series with the water inlet end of the condenser 1;

[0060] A second temperature sensor 302 is connected in series with the water outlet end of the condenser 1;

[0061] A first electromagnetic flowmeter 303 is installed in series at the water outlet of the condenser 1 to detect the flow rate, while a temperature sensor is used to detect the inlet and outlet temperatures of the condenser to facilitate subsequent calculations;

[0062] The second detection unit 7 includes:

[0063] A third temperature sensor 701 is connected in series with the water inlet end of the evaporator 5;

[0064] A fourth temperature sensor 702 is connected in series with the water outlet end of the evaporator 5;

[0065] The second electromagnetic flowmeter 703 is installed in series at the water outlet of the evaporator 5. This application also uses an electromagnetic flowmeter to detect the flow rate and a temperature sensor to detect the inlet and outlet temperatures of the evaporator to facilitate subsequent calculations.

[0066] The second heat exchange line 6 is further connected in series with a gas pressure stabilizing tank 11 .

[0067] This application adds a plate heat exchanger to a unit route to form heat exchange, prevent high-temperature liquid from directly entering the test bench, and can more safely calculate the heat exchange effect of the entire unit.

[0068] In the specification of the present invention, a large number of specific details are described. However, it is understood that the embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0069] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. An auxiliary system for high temperature unit testing, characterized in that: include: condenser; a first heat exchange circuit, connected to the water inlet and outlet of the condenser; a first detection unit, disposed on the first heat exchange circuit; a condenser main water pump, installed on the first heat exchange circuit; evaporator; a second heat exchange circuit, connected to the water inlet and outlet of the evaporator, and the second heat exchange circuit is connected in parallel with the first heat exchange circuit; a second detection unit, disposed on the second heat exchange circuit; an evaporator main water pump, installed on the second heat exchange circuit; The heat exchange unit is in communication with the first heat exchange circuit and the second heat exchange circuit.

2. The auxiliary system for high temperature unit testing according to claim 1, characterized in that: The heat exchange unit is a plate heat exchanger; The water temperature at the water inlet end of the plate heat exchanger is not higher than 32°C.

3. The auxiliary system for high temperature unit testing according to claim 1, characterized in that: A control valve is also connected in series on the second heat exchange circuit.

4. The auxiliary system for high temperature unit testing according to claim 1, characterized in that: The first detection unit includes: a first temperature sensor connected in series with the water inlet end of the condenser; a second temperature sensor connected in series with the water outlet of the condenser; The first electromagnetic flowmeter is installed in series at the water outlet end of the condenser.

5. The auxiliary system for high temperature unit testing according to claim 4, characterized in that: The second detection unit includes: a third temperature sensor connected in series with the water inlet end of the evaporator; a fourth temperature sensor connected in series with the water outlet end of the evaporator; The second electromagnetic flowmeter is installed in series at the water outlet end of the evaporator.

6. The auxiliary system for high temperature unit testing according to claim 1, characterized in that: A gas pressure stabilizing tank is also connected in series on the second heat exchange line.

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