Filth blockage fault detection device for air-cooled water chilling unit

Abstract

The utility model relates to the technical field of air conditioning equipment fault detection, and discloses an air-cooled water chilling unit filth blockage fault detection device which comprises three mounting pipes, and a protection mechanism is arranged in the three mounting pipes jointly. The protection mechanism comprises three electric push rods, the top end of each electric push rod is fixedly connected with the inner top wall of the mounting pipe, the telescopic end of each electric push rod is fixedly provided with a temperature sensor body, the inner wall of each mounting pipe is fixedly provided with a connecting disc and a connecting bearing, and the inner wall of each connecting bearing is fixedly provided with a rack ring; the bottom face of each rack ring is fixedly provided with a rotating disc, the bottom face of each rotating disc is slidably connected with two sets of sealing blocks, the bottom face of each sealing block is fixedly provided with a connecting column, and the outer surface of each connecting column is slidably connected with the inner wall of the corresponding connecting disc. According to the filth blockage fault detection device for the air-cooled water chilling unit, the protection mechanism is arranged, so that the purpose of protecting the temperature sensor main body is achieved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning equipment fault detection technology, specifically a fault detection device for dirt blockage in air-cooled chiller units. Background Technology

[0002] In practical applications, the outdoor heat exchanger of air-cooled chillers is susceptible to scaling and blockage caused by dust, smoke, and other particulate matter in the air. This blockage directly obstructs the air-side passage of the outdoor heat exchanger, resulting in reduced airflow, increased thermal resistance, and decreased heat exchange efficiency. Consequently, the cooling performance of the unit deteriorates, and in severe cases, it can lead to accidents such as compressor damage.

[0003] The existing utility model with authorization announcement number CN213300430U discloses a dirt blockage fault detection device for an air-cooled chiller unit, including an air-cooled chiller unit, a temperature sensor, a signal processor, and a dirt blockage fault alarm device; temperature sensors are installed on the air inlet side, the coil surface, and the air outlet side of the outdoor heat exchanger of the air-cooled chiller unit.

[0004] The above technical solution enables the sensing and monitoring of dirt blockage in the outdoor heat exchanger of an air-cooled chiller unit, effectively determining the degree of blockage and guiding reasonable descaling operations. However, when using this device, the temperature needs to be detected at certain intervals, and the device does not have a function to protect the temperature sensor. Therefore, during the off-time period, the temperature sensor is exposed to the outside environment for a long time and is prone to accumulating more impurities, which affects the detection sensitivity of the temperature sensor and can easily lead to misjudgment.

[0005] Therefore, those skilled in the art have provided a device for detecting dirt and blockage in air-cooled chillers to solve the problem mentioned in the background art of not having a protection function for temperature sensors. Utility Model Content

[0006] The purpose of this invention is to provide a device for detecting dirt and blockage in air-cooled chillers, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] The air-cooled chiller unit dirt blockage fault detection device includes three mounting pipes, and the interior of the three mounting pipes is equipped with a protective mechanism.

[0009] The protective mechanism includes three electric push rods. The top of each electric push rod is fixedly connected to the inner top wall of the mounting tube. A temperature sensor body is fixedly installed at the telescopic end of each electric push rod. A connecting plate and a connecting bearing are fixedly installed on the inner wall of each mounting tube. A rack ring is fixedly installed on the inner wall of each connecting bearing. A rotating disk is fixedly installed on the bottom surface of each rack ring. Two sets of sealing blocks are slidably connected to the bottom surface of each rotating disk. A connecting post is fixedly installed on the bottom surface of each sealing block. The outer surface of each connecting post is slidably connected to the inner wall of the connecting plate. A temperature sensor body is fixedly installed on the inner wall of each mounting tube. Each device is equipped with a rotating motor, and a connecting gear is fixedly installed at the output end of each rotating motor. The outer surface of each connecting gear meshes with the inner wall of the rack ring. A connecting box is fixedly installed on the upper surface of each mounting tube. A first dustproof net is fixedly installed on the right side of each connecting box. An air pump is fixedly installed on the inner bottom wall of each connecting box. The air outlet of each air pump passes through the connecting box and is fixedly installed with a delivery pipe. The end of each delivery pipe away from the air pump passes through the interior of the mounting tube. An air outlet pipe is fixedly connected to the outer surface of each mounting tube. A solenoid valve is fixedly installed on the outer surface of each air outlet pipe.

[0010] As a further embodiment of this utility model: a processor is provided on the back of the mounting tube, and three wire bodies are fixedly installed on the front of the processor. The end of each wire body away from the processor passes through the mounting tube and is electrically connected to the temperature sensor body. An audible and visual alarm is fixedly installed on the upper surface of the processor.

[0011] As a further improvement of this utility model: four support legs are fixedly installed on the bottom surface of the processor, and an mounting plate is fixedly installed on the bottom surface of each support leg.

[0012] As a further improvement of this utility model: a fixing bracket is fixedly installed on the inner wall of each of the mounting tubes, and the inner wall of each fixing bracket is fixedly connected to the outer surface of the electric push rod.

[0013] As a further improvement of this utility model: a fixed bearing is fixedly installed on the inner wall of each of the mounting tubes, and the bottom surface of the inner ring of each fixed bearing is fixedly connected to the upper surface of the connecting gear.

[0014] As a further improvement of this utility model: two connecting ears are fixedly installed on the outer surface of each of the mounting tubes, and a fixing bolt is threaded into the interior of each connecting ear, with the bottom end of each fixing bolt extending through to the bottom of the connecting ear.

[0015] As a further improvement of this utility model: each of the mounting tubes has a heat dissipation tube fixedly connected to its outer surface, and a second dustproof net is fixedly installed on the side of each heat dissipation tube away from the mounting tube.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention comprises an installation tube, an electric push rod, a temperature sensor body, a connecting disc, a connecting bearing, a rack ring, a rotating disc, a sealing block, a connecting column, a rotating motor, and a connecting gear. The electric push rod powers the temperature sensor body into the installation tube. The rotating motor, in conjunction with the connecting gear, drives the rack ring to rotate, which in turn drives the rotating disc. This rotating disc, along with the connecting column and the connecting disc, causes the sealing block to slide relative to the installation tube, sealing the installation tube and preventing the temperature sensor body from being exposed to the outside environment when not in use. This achieves the purpose of protecting the temperature sensor. Furthermore, the invention includes a connecting box, a first dustproof net, an air pump, a delivery pipe, an outlet pipe, and a solenoid valve. The air pump blows outside air, filtered through the first dustproof net, onto the outer surface of the temperature sensor body, cleaning impurities adhering to the surface and preventing these impurities from affecting the sensor's detection sensitivity. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a dirt and blockage fault detection device for an air-cooled chiller unit.

[0019] Figure 2 This is a three-dimensional structural schematic diagram of the installation pipe in the dirt blockage fault detection device for an air-cooled water chiller unit.

[0020] Figure 3 This is a three-dimensional structural schematic diagram of the installation pipe in the dirt and blockage fault detection device for an air-cooled water chiller unit, viewed from below and sectionally.

[0021] Figure 4 This is a three-dimensional structural schematic diagram of the connecting gear in the dirt and blockage fault detection device of an air-cooled water chiller unit, viewed from below and cross-sectionally.

[0022] Figure 5 This is a three-dimensional structural diagram of the connecting box in the dirt blockage fault detection device for an air-cooled chiller unit.

[0023] In the diagram: 1. Mounting pipe; 2. Protective mechanism; 201. Electric push rod; 202. Temperature sensor body; 203. Connecting plate; 204. Connecting bearing; 205. Rack ring; 206. Rotating plate; 207. Sealing block; 208. Connecting column; 209. Rotating motor; 210. Connecting gear; 211. Connecting box; 212. First dustproof net; 213. Air pump; 214. Delivery pipe; 215. Air outlet pipe; 216. Solenoid valve; 3. Processor; 4. Wire body; 5. Audible and visual alarm; 6. Support leg; 7. Mounting plate; 8. Fixing frame; 9. Fixing bearing; 10. Connecting ear; 11. Fixing bolt; 12. Heat dissipation pipe; 13. Second dustproof net. Detailed Implementation

[0024] Please see Figure 1-5 The air-cooled chiller unit dirt blockage fault detection device includes three installation pipes 1, and the interior of the three installation pipes 1 is jointly equipped with a protective mechanism 2. The protective mechanism 2 includes three electric push rods 201. The top of each electric push rod 201 is fixedly connected to the inner top wall of the installation pipe 1. A fixing bracket 8 is fixedly installed on the inner wall of each installation pipe 1. The inner wall of each fixing bracket 8 is fixedly connected to the outer surface of the electric push rod 201. The installation of the fixing bracket 8 plays a role in stabilizing the electric push rod 201, thereby preventing the electric push rod 201 from shaking during the extension and retraction process, and thus ensuring the stability of the electric push rod 201.

[0025] Each electric push rod 201 has a temperature sensor body 202 fixedly installed at its telescopic end. A processor 3 is set on the back of the mounting tube 1. Three wire bodies 4 are fixedly installed on the front of the processor 3. The end of each wire body 4 away from the processor 3 passes through the mounting tube 1 and is electrically connected to the temperature sensor body 202. An audible and visual alarm 5 is fixedly installed on the upper surface of the processor 3. By using the temperature sensor body 202 to detect the temperature on the air inlet side, coil, and air outlet side of the outdoor heat exchanger of the air-cooled chiller, when dirt blockage occurs in the air-cooled chiller, the temperature detected by the temperature sensor body 202 will rise abnormally, thereby transmitting the signal to the processor 3. The processor 3 processes the signal and controls the audible and visual alarm 5 to sound an alarm, thus achieving the purpose of detecting dirt blockage in the air-cooled chiller.

[0026] Each mounting pipe 1 has a connecting plate 203 and a connecting bearing 204 fixedly installed on its inner wall. Each connecting bearing 204 has a rack ring 205 fixedly installed on its inner wall. That is, the inner wall of the inner ring of the connecting bearing 204 is fixedly connected to the rack ring 205, and the outer surface of the outer ring of the connecting bearing 204 is fixedly connected to the inner wall of the mounting pipe 1. Four support legs 6 are fixedly installed on the bottom surface of the processor 3. Each support leg 6 has a mounting plate 7 fixedly installed on its bottom surface. The mounting plate 7 is fixed to the air-cooled chiller unit with bolts, thereby preventing the processor 3 from moving on its own and ensuring the stability of the processor 3.

[0027] Each rack ring 205 has a rotating disk 206 fixedly installed on its bottom surface. Each rotating disk 206 has two sets of sealing blocks 207 slidably connected to its bottom surface. Each sealing block 207 has a connecting post 208 fixedly installed on its bottom surface. The outer surface of each connecting post 208 is slidably connected to the inner wall of the connecting disk 203. The bottom surface of the connecting disk 203 has a sliding groove for the connecting post 208 to slide. The bottom surface of the rotating disk 206 has a hexagonal shape to facilitate the sliding of the sealing block 207. Each mounting tube 1 has two connecting ears 10 fixedly installed on its outer surface. Each connecting ear 10 has a fixing bolt 11 threaded inside. The bottom end of each fixing bolt 11 extends through to the bottom of the connecting ear 10. The fixing bolts 11 are used to install the connecting ears 10 at the positions where temperature detection is required, thereby ensuring the stability of the mounting tube 1.

[0028] Each mounting tube 1 has a rotating motor 209 fixedly mounted on its inner wall. Each rotating motor 209 has a connecting gear 210 fixedly mounted on its output end. The outer surface of each connecting gear 210 meshes with the inner wall of the rack ring 205. Each mounting tube 1 has a fixed bearing 9 fixedly mounted on its inner wall. The bottom surface of the inner ring of each fixed bearing 9 is fixedly connected to the upper surface of the connecting gear 210. A rectangular plate is provided on the inner wall of the mounting tube 1, so that the rotating motor 209 is fixedly connected to the rectangular plate. The installation of the fixed bearing 9 plays a role in stabilizing the connecting gear 210, thereby preventing the connecting gear 210 from shaking when rotating.

[0029] A connecting box 211 is fixedly installed on the upper surface of each mounting pipe 1. A first dustproof net 212 is fixedly installed on the right side of each connecting box 211. An air pump 213 is fixedly installed on the inner bottom wall of each connecting box 211. The air outlet end of each air pump 213 passes through the connecting box 211 and is fixedly installed with a delivery pipe 214. The end of each delivery pipe 214 away from the air pump 213 passes through the interior of the mounting pipe 1. An air outlet pipe 215 is fixedly connected to the outer surface of each mounting pipe 1. A dustproof net 212 is fixedly installed on the outer surface of each air outlet pipe 215. The solenoid valve 216 has a heat dissipation pipe 12 fixedly connected to the outer surface of each mounting pipe 1. A second dustproof net 13 is fixedly installed on the side of each heat dissipation pipe 12 away from the mounting pipe 1. The installation of the heat dissipation pipe 12 increases the airflow inside the mounting pipe 1 when the temperature sensor body 202 is running, thereby playing a role in dissipating heat from the temperature sensor body 202. The installation of the second dustproof net 13 prevents external impurities from entering the interior of the mounting pipe 1, thereby further reducing the impact on the temperature sensor body 202.

[0030] The working principle of this utility model is as follows: In use, the worker first uses the fixing bolts 11 to fix the mounting pipe 1 at the location where temperature detection is needed, so that the temperature sensor body 202 can contact the location to be detected when it extends out of the mounting pipe 1. Then, the worker opens the temperature sensor body 202 and uses it to detect the temperature on the air inlet side, coil, and air outlet side of the outdoor heat exchanger of the air-cooled chiller unit. When dirt blockage occurs in the air-cooled chiller unit, the temperature detected by the temperature sensor body 202 will show an abnormal increase, thus transmitting the signal to the processor 3. The processor 3 processes the signal and controls the audible and visual alarm 5 to sound an alarm, thereby achieving the purpose of detecting dirt blockage in the air-cooled chiller unit. After the detection is completed, the external controller device is used to open the electric push rod 201, the air pump 213, and the solenoid valve 216, thereby using the power provided by the electric push rod 201 to drive the temperature sensor body 202. The temperature sensor body 202 is housed inside the mounting tube 1. During the housing process, the air pump 213 draws outside air through the first dustproof net 212 and into the delivery tube 214. After passing through the delivery tube 214, the air is blown onto the outer surface of the temperature sensor body 202, thus cleaning the impurities adhering to the temperature sensor body 202. Then, the power provided by the rotating motor 209 drives the rack ring 205 to rotate, which in turn drives the rotating disk 206 to rotate. The rotating disk 206, in conjunction with the connecting disk 203, moves the sealing block 207 and the connecting column 208, causing the sealing block 207 to come into contact with each other, thereby sealing the mounting tube 1. After the mounting tube 1 is sealed, the solenoid valve 216 is closed, thus sealing and storing the temperature sensor body 202, thereby protecting the temperature sensor body 202.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for detecting dirt blockage in air-cooled chillers, comprising three mounting pipes (1), characterized in that: The three mounting tubes (1) are all equipped with a protective mechanism (2) inside; The protective mechanism (2) includes three electric push rods (201). The top end of each electric push rod (201) is fixedly connected to the inner top wall of the mounting tube (1). A temperature sensor body (202) is fixedly installed at the telescopic end of each electric push rod (201). A connecting plate (203) and a connecting bearing (204) are fixedly installed on the inner wall of each mounting tube (1). A rack ring (205) is fixedly installed on the inner wall of each connecting bearing (204). A rotating disk (206) is fixedly installed on the bottom surface of each rack ring (205). Two sets of sealing blocks (207) are slidably connected to the bottom surface of each rotating disk (206). A connecting column (208) is fixedly installed on the bottom surface of each sealing block (207). The outer surface of each connecting column (208) is slidably connected to the inner wall of the connecting plate (203). A rotating disk is fixedly installed on the inner wall of each mounting tube (1). Each of the rotating motors (209) has a connecting gear (210) fixedly installed at its output end. The outer surface of each connecting gear (210) meshes with the inner wall of the rack ring (205). Each of the mounting tubes (1) has a connecting box (211) fixedly installed on its upper surface. Each of the connecting boxes (211) has a first dustproof net (212) fixedly installed on its right side. Each of the connecting boxes (211) has an air pump (213) fixedly installed on its inner bottom wall. Each of the air pumps (213) has an air outlet end that passes through the connecting box (211) and has a delivery pipe (214) fixedly installed thereon. The end of each delivery pipe (214) away from the air pump (213) passes through the interior of the mounting tube (1). Each of the mounting tubes (1) has an air outlet pipe (215) fixedly connected to its outer surface. Each of the air outlet pipes (215) has a solenoid valve (216) fixedly installed on its outer surface.

2. The air-cooled chiller unit dirt blockage fault detection device according to claim 1, characterized in that: The back of the mounting tube (1) is provided with a processor (3), and three wire bodies (4) are fixedly installed on the front of the processor (3). The end of each wire body (4) away from the processor (3) passes through the mounting tube (1) and is electrically connected to the temperature sensor body (202). An audible and visual alarm (5) is fixedly installed on the upper surface of the processor (3).

3. The air-cooled chiller unit dirt blockage fault detection device according to claim 2, characterized in that: The processor (3) has four support legs (6) fixedly installed on its bottom surface, and each support leg (6) has a mounting plate (7) fixedly installed on its bottom surface.

4. The air-cooled chiller unit dirt blockage fault detection device according to claim 1, characterized in that: Each of the mounting tubes (1) has a fixed bracket (8) fixedly installed on its inner wall, and the inner wall of each fixed bracket (8) is fixedly connected to the outer surface of the electric push rod (201).

5. The air-cooled chiller unit dirt blockage fault detection device according to claim 1, characterized in that: Each of the mounting tubes (1) has a fixed bearing (9) fixedly installed on its inner wall, and the bottom surface of the inner ring of each fixed bearing (9) is fixedly connected to the upper surface of the connecting gear (210).

6. The air-cooled chiller unit dirt blockage fault detection device according to claim 1, characterized in that: Two connecting ears (10) are fixedly installed on the outer surface of each of the mounting tubes (1). Each connecting ear (10) is threaded with a fixing bolt (11), and the bottom end of each fixing bolt (11) extends through to the bottom of the connecting ear (10).

7. The air-cooled chiller unit dirt blockage fault detection device according to claim 1, characterized in that: Each of the mounting tubes (1) has a heat dissipation tube (12) fixedly connected to its outer surface, and a second dustproof net (13) is fixedly installed on the side of each heat dissipation tube (12) away from the mounting tube (1).

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