A testing device for the corrosion resistance of antifreeze to metal components of heat pumps

Abstract

This utility model provides a device for testing the corrosion resistance of antifreeze on metal components of a heat pump, relating to the technical field of heat pump testing instruments. It includes an inner shell, a ring frame, a mounting plate detector, a display, a temperature-controlled liquid circulation pump, a detection signal device, a circuit board, heat exchange tubes, and a base block. The inner shell has three layers of threaded circular holes on its inner and outer sides. The outer ring of the ring frame has six sets of circular holes, and three sets of ring frames are fastened to the inner and outer sides of the inner shell by fastening screws. The inner side of the ring frame has circular connecting holes, and one side of the mounting plate detector has a set of circular connecting holes, with the detector being fastened to the inner side of the ring frame by a connecting bolt. The top of the mounting plate detector has a set of connecting pipe heads. The mounting plate detector and other components enable simultaneous testing of multiple metals. The circulation pump and pipeline work together to ensure stable antifreeze circulation. The detection element and display device are linked to monitor corrosion data accurately in real time, improving testing efficiency and accuracy.

Description

Technical Field

[0001] This utility model belongs to the technical field of heat pump testing equipment, and more specifically, it relates to a device for testing the corrosion resistance of antifreeze to metal components of a heat pump. Background Technology

[0002] Air source heat pump heating systems are widely used in cold regions due to their energy-saving and environmentally friendly characteristics. To cope with low-temperature environments, the system needs to be filled with a special antifreeze to prevent pipes from freezing and cracking, ensuring stable operation in winter. This type of antifreeze needs to circulate within the system for extended periods, continuously contacting various metal components such as copper, aluminum, and iron. The corrosion resistance of these metal components directly affects the service life and operational safety of the heat pump system; therefore, accurate testing of the antifreeze's corrosion resistance is crucial. The test must simulate the actual operating temperature range, fluid flow rate, and multi-metal coexistence environment of the heat pump to ensure that the test results accurately reflect the antifreeze's performance under real-world conditions, providing a reliable basis for antifreeze selection and improvement.

[0003] Based on the above, air source heat pump heating systems require specialized antifreeze to prevent low-temperature freezing and cracking. However, long-term circulation of the antifreeze may corrode metal components such as copper, aluminum, and iron, affecting equipment lifespan and safety. Existing testing devices have limitations, such as primarily testing single metal samples, lacking dynamic cyclic simulation, and having insufficient corrosion monitoring accuracy. Therefore, it is necessary to design a corrosion resistance testing device that can simulate real operating environments, accommodate multi-metal sample testing, and provide accurate monitoring. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a testing device for the corrosion resistance of antifreeze to metal components of heat pumps, thereby solving the problems of existing devices being unable to simulate multi-metal coexistence environments, lacking dynamic cycle simulation, and having insufficient corrosion monitoring accuracy.

[0005] This utility model discloses a testing device for the corrosion resistance of antifreeze to metal components of a heat pump, which is achieved through the following specific technical means:

[0006] A device for testing the corrosion resistance of antifreeze to metal components of a heat pump includes an inner shell, a ring frame, a mounting plate detector, a display, a temperature liquid circulation pump, a detection signal device, a circuit board, heat exchange tubes, and a base block. The inner shell has three layers of threaded circular holes on its inner and outer sides. The outer ring frame has six sets of circular holes, and three sets of ring frames are fastened to the inner and outer sides of the inner shell by fastening screws. The inner side of the ring frame has circular connecting holes, and one side of the mounting plate detector has one set of circular connecting holes. The mounting plate detector is also fastened to the inner side of the ring frame by a connecting bolt. The top of the mounting plate detector has a set of connecting pipe heads, and the detection signal device is secured... The device is mounted on the top of the mounting plate detector. Two sets of threaded holes are provided on one side of the top of the inner cavity shell. A set of circular holes is provided on each of the connecting plates on both sides of the circuit board. The connecting plates on both sides of the circuit board are fastened to the top of the inner cavity shell by screws. A set of rectangular slots is provided on one side of the inner cavity shell, and a rectangular plate on the display side is snapped onto the side of the inner cavity shell. A set of rectangular slots is provided at the bottom of the inner cavity shell, and a bottom block is snapped onto the bottom of the inner cavity shell. The bottom connecting plate of the temperature liquid circulation pump is fastened to the top of the bottom block by screws. Two sets of circular tubes are provided on one side of the temperature liquid circulation pump, and heat exchange tubes are snapped onto the circular tubes on one side of the temperature liquid circulation pump.

[0007] Furthermore, the upper part of the circuit board is provided with two sets of square slots, and a signal receiver is snapped into the square slots on the upper part of the circuit board. The inner cavity shell is provided with two sets of square slots on one side, and a signal protective shell is snapped into the square slots on both sides of the inner cavity shell.

[0008] Furthermore, the top of the inner cavity shell is provided with four sets of threaded holes, and a pipe support is fastened to the top of the inner cavity shell by screws. A set of circular holes is provided in the middle of the pipe support, and a circulation pipe is clamped to the circular hole in the middle of the pipe support. A set of circular pipes is provided on one side of the bottom of the inner cavity shell, and a corrosion liquid circulation pump is clamped to the bottom of the inner cavity shell. The circular pipe on one side of the corrosion liquid circulation pump is clamped to the circulation pipe on one side.

[0009] Furthermore, a set of sealing caps is fastened to the circular tube on one side of the top of the hanging plate detector, and a metal plate is hung on the hook at the bottom of the hanging plate detector. A set of square detection plates is provided on the lower rear side of the hanging plate detector.

[0010] Furthermore, the outer side of the inner shell is provided with a threaded hole, and a pipe hanger is fastened to the threaded hole on the outer side of the inner shell by screws. The lower hook of the pipe hanger is hung to the heat exchange tube.

[0011] Furthermore, the outer side of the top of the inner shell is provided with six sets of threaded holes, and the outer protective shell is fastened to the threaded holes on the outer side of the top of the inner shell by screws.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model, by setting up a hanging plate detector, a metal plate and a ring frame, can simultaneously install multiple metal samples to simulate the corrosive environment of multiple metals coexisting in a heat pump system, thus overcoming the limitations of single metal testing.

[0014] 2. This utility model, by setting up a temperature liquid circulation pump, a corrosion liquid circulation pump, a circulation pipe and a heat exchange pipe, can realize the dynamic circulation and temperature simulation of antifreeze, and truly reflect the influence of fluid flow state on corrosion.

[0015] 3. By setting up a detection signal device, a signal receiver, a circuit board, and a display, this utility model can monitor metal corrosion data in real time and accurately capture subtle corrosion changes, thereby improving testing accuracy and efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the internal structure of the main device of this utility model.

[0018] Figure 3 This is a structural schematic diagram of the hanging plate detector device of this utility model.

[0019] Figure 4 This is a structural schematic diagram of the heat exchange tube device and circulation tube device of this utility model.

[0020] Figure 5 This is a cross-sectional view of the circuit board assembly connection of this utility model.

[0021] Figure 6 This is a schematic diagram of the display control device of this utility model.

[0022] Figure 7 This is a cross-sectional structural diagram of the connection of the corrosion liquid circulation pump device of this utility model.

[0023] Figure 8 This is a cross-sectional structural diagram of the connection of the detection signal device of this utility model.

[0024] Figure 9 This is a cross-sectional structural diagram of the connection of the pipe hanging bracket device of this utility model.

[0025] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0026] 1. Inner shell; 2. Ring frame; 3. Hanging plate detector; 4. Signal housing; 5. Display; 6. Temperature liquid circulation pump; 7. Corrosion liquid circulation pump; 8. Detection signal device; 101. Outer housing; 301. Metal plate; 401. Signal receiver; 402. Circuit board; 601. Heat exchange tube; 602. Bottom block; 603. Hanging tube rack; 701. Circulation tube; 702. Fixed tube rack; 801. Sealing cover. Detailed Implementation

[0027] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0028] Example:

[0029] As attached Figure 1 To be continued Figure 9 As shown:

[0030] This utility model provides a device for testing the corrosion resistance of antifreeze to metal components of a heat pump, including an inner shell 1, a ring frame 2, a mounting plate detector 3, a display 5, a temperature liquid circulation pump 6, a detection signal device 8, a circuit board 402, a heat exchange tube 601, and a bottom block 602. The inner shell 1 has three layers of threaded circular holes on its inner and outer sides. The outer ring of the ring frame 2 has six sets of circular holes, and three sets of ring frames 2 are fastened to the inner and outer sides of the inner shell 1 by fastening screws. The inner side of the ring frame 2 has circular connecting holes. One side of the mounting plate detector 3 has a set of circular connecting holes, and one side of the mounting plate detector 3 is fastened to the inner side of the ring frame 2 by a connecting bolt. The top of the mounting plate detector 3 has a set of connecting pipe heads, and the detection signal... The signal generator 8 is snapped onto the top of the mounting plate detector 3. The top side of the inner cavity shell 1 has two sets of threaded holes. The connecting plates on both sides of the circuit board 402 each have a set of circular holes. The connecting plates on both sides of the circuit board 402 are fastened to the top side of the inner cavity shell 1 by screws. The inner cavity shell 1 has a set of square slots on one side. The square plate on the side of the display 5 is snapped onto the side of the inner cavity shell 1. The bottom of the inner cavity shell 1 has a set of square slots. The bottom block 602 is snapped onto the bottom of the inner cavity shell 1. The bottom connecting plate of the temperature liquid circulation pump 6 is fastened to the top of the bottom block 602 by screws. The temperature liquid circulation pump 6 has two sets of circular tubes on one side. The circular tubes on the side of the temperature liquid circulation pump 6 are snapped onto the heat exchange tube 601.

[0031] The circuit board 402 has two sets of square slots on its upper part, and a signal receiver 401 is installed and connected in the square slots on the upper part of the circuit board 402. The inner cavity shell 1 has two sets of square slots on one side, and a signal protective shell 4 is installed and connected in the square slots on both sides of the inner cavity shell 1. The square slot design of the circuit board 402 facilitates the quick installation and removal of the signal receiver 401 and ensures the stability of the signal transmission line. The signal protective shell 4 is installed on both sides of the inner cavity shell 1, effectively shielding external electromagnetic interference, protecting the signal receiver 401 and the circuit board 402, and improving the accuracy and reliability of corrosion data monitoring.

[0032] The inner shell 1 has four sets of threaded holes at its top, and a pipe support 702 is fastened to the top of the inner shell 1 by screws. A set of circular holes is provided in the middle of the pipe support 702, and a circulation pipe 701 is clamped to the circular holes in the middle of the pipe support 702. A set of circular pipes is provided on one side of the bottom of the inner shell 1, and a corrosion liquid circulation pump 7 is clamped to the bottom of the inner shell 1. The circular pipe on one side of the corrosion liquid circulation pump 7 is clamped to one side of the circulation pipe 701. The pipe support 702 is fixed to the top of the inner shell 1 by screws to securely clamp the circulation pipe 701 and prevent it from shaking. The corrosion liquid circulation pump 7 and the circulation pipe 701 are clamped to form a closed loop to ensure stable circulation of antifreeze and simulate the real flow state.

[0033] The mounting plate detector 3 has a set of sealing caps 801 fastened to the circular tube on one side of the top, and a metal plate 301 is hung on the hook at the bottom of the mounting plate detector 3. A set of square detection plates is provided at the lower rear side of the mounting plate detector 3. The sealing caps 801 are fastened to the top of the mounting plate detector 3 to ensure the sealing of the detection part. The metal plate 301 is hung on the bottom hook. Together with the square detection plate on the rear side, the corrosion status of multiple metals can be monitored simultaneously, improving the testing efficiency.

[0034] The inner shell 1 has a threaded hole on its outer side, and a pipe hanger 603 is fastened to the threaded hole on the outer side of the inner shell 1 by screws. The lower hook of the pipe hanger 603 is connected to the heat exchange tube 601 in a hanging manner. The sealing cover 801 is fastened to the top of the hanging plate detector 3 to ensure the sealing of the detection part. The bottom hook hangs the metal plate 301, which, together with the rear square detection plate, can simultaneously monitor the corrosion status of multiple metals and improve the testing efficiency.

[0035] The inner shell 1 has six sets of threaded holes on the top outer side, and the outer protective shell 101 is fastened to the threaded holes on the top outer side of the inner shell 1 by screws. The sealing cover 801 is fastened to the top of the hanging plate detector 3 to ensure the sealing of the detection part. The bottom hook hangs the metal plate 301, which, together with the rear square detection plate, can simultaneously monitor the corrosion status of multiple metals and improve the testing efficiency.

[0036] The specific usage and function of this embodiment are as follows:

[0037] In this invention, metal plates 301 of different materials are hung on the bottom hooks of the plate detector 3, and the plate detector 3 is clamped to the inside of the ring frame 2 by connecting bolts. The three sets of ring frames 2 are fixed to the inner cavity shell 1 by screws, enabling simultaneous testing of multiple metal samples. After the outer protective shell 101 is covered, the corrosion liquid circulation pump 7 drives the antifreeze to circulate in the system through the circulation pipe 701, and the pipe fixing bracket 702 fixes the circulation pipe 701; the temperature liquid circulation pump 6 drives the heat exchange medium through the heat exchange pipe 601, and the hanging pipe bracket 603 fixes the heat exchange pipe 601 to adjust the inner cavity temperature. During the test, the square detection plate of the plate detector 3 collects metal corrosion data, which is transmitted to the signal receiver 401 through the detection signal device 8, and then processed by the circuit board 402 and displayed on the display 5. The signal protective shell 4 protects the signal element, the sealing cover 801 ensures the sealing of the detection signal device 8, and the bottom square block 602 stabilizes the temperature liquid circulation pump 6. The whole system simulates the real environment and accurately tests the corrosion of metal parts by the antifreeze.

[0038] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

Claims

1. A device for testing the corrosion resistance of metal parts of a heat pump to an antifreeze fluid, characterized in that: It includes an inner shell (1), a ring frame (2), a hanging plate detector (3), a display (5), a temperature liquid circulation pump (6), a detection signal device (8), a circuit board (402), a heat exchange tube (601), and a bottom block (602); The inner cavity shell (1) has three layers of threaded round holes on its inner and outer sides. The outer ring of the ring frame (2) has six sets of round holes. The inner and outer sides of the inner cavity shell (1) are fastened with three sets of ring frames (2) by fastening screws. The inner side of the ring frame (2) has round connecting holes. The side of the hanging plate detector (3) has a set of round connecting holes. The side of the hanging plate detector (3) is fastened to the inner side of the ring frame (2) by connecting bolts. The top of the hanging plate detector (3) has a set of connecting tube heads. The detection signal device (8) is fastened to the top of the hanging plate detector (3). The top side of the inner cavity shell (1) has two sets of threaded holes. The circuit board (402) has two sets of threaded holes on both sides. Each of the connecting plates is provided with a set of circular holes, and the connecting plates on both sides of the circuit board (402) are fastened to the top side of the inner cavity shell (1) by screws. The inner cavity shell (1) is provided with a set of square long slots on one side, and the square plate on the side of the display (5) is snapped to the side of the inner cavity shell (1). The bottom of the inner cavity shell (1) is provided with a set of square slots, and the bottom of the inner cavity shell (1) is snapped to the bottom of the inner cavity shell (1). The bottom connecting plate of the temperature liquid circulation pump (6) is fastened to the top of the bottom block (602) by screws. The temperature liquid circulation pump (6) is provided with two sets of circular tubes on one side, and the circular tubes on the side of the temperature liquid circulation pump (6) are snapped to the heat exchange tube (601).

2. A freeze protection fluid corrosion resistance testing apparatus for heat pump metal components as defined in claim 1, wherein: The upper part of the circuit board (402) is provided with two sets of square slots, and a signal receiver (401) is installed in the square slots on the upper part of the circuit board (402). The inner cavity shell (1) is provided with two sets of square slots on one side, and a signal protective shell (4) is installed in the square slots on both sides of the inner cavity shell (1).

3. A freeze protection fluid corrosion resistance testing apparatus for heat pump metal components as defined in claim 1, wherein: The top of the inner shell (1) is provided with four sets of threaded holes, and the top of the inner shell (1) is fastened to a pipe bracket (702) by screws. The pipe bracket (702) is provided with a set of circular holes in the middle, and a circulation pipe (701) is clamped to the circular holes in the middle of the pipe bracket (702). The bottom side of the inner shell (1) is provided with a set of circular pipes, and a corrosion liquid circulation pump (7) is clamped to the bottom side of the inner shell (1). The circular pipe on one side of the corrosion liquid circulation pump (7) is clamped to the side of the circulation pipe (701).

4. The freeze protection fluid corrosion resistance testing apparatus for heat pump metal components of claim 1, wherein: A set of sealing caps (801) is fastened to a circular tube on one side of the top of the hanging plate detector (3), and a metal plate (301) is hung on the hook at the bottom of the hanging plate detector (3). A set of square detection plates is provided on the lower rear side of the hanging plate detector (3).

5. A freeze protection fluid corrosion resistance testing apparatus for heat pump metal components as defined in claim 1, wherein: The inner shell (1) has a threaded hole on the outside, and a pipe hanger (603) is fastened to the threaded hole on the outside of the inner shell (1) by screws. The lower hook of the pipe hanger (603) is connected to the heat exchange tube (601) in a hanging manner.

6. A freeze protection fluid corrosion resistance testing apparatus for heat pump metal components as defined in claim 1, wherein: The inner shell (1) has six sets of threaded holes on the top outer side, and the outer protective shell (101) is fastened to the threaded holes on the top outer side of the inner shell (1) by screws.

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