Power cabinet for pneumatic sample conveying system

Abstract

The utility model discloses a power cabinet for a pneumatic sample conveying system, which at least comprises two fans and a control device, each fan comprises a first air port and a second air port, the power cabinet further comprises a collecting pipe connected with a pneumatic conveying pipeline, and the collecting pipe is respectively connected with the first air ports and the second air ports of the two fans. One of the two fans is in forward rotation, and the other fan is in reverse rotation; during air blowing, the control device controls the blades of the two fans to rotate in the interchange direction. The pneumatic conveying device has the advantages of simple structure, good stability, high reliability, good pneumatic conveying effect and the like.

Description

Technical Field

[0001] The utility model mainly relates to the field of material sample collection and processing equipment, in particular to a power cabinet used in a sample pneumatic conveying system. Background Art

[0002] In the sampling, sample preparation and testing of material (such as ore and coal) samples, it is necessary to transport the prepared samples from the workstation (laboratory) of this link to the workstation (laboratory) of the next link for the next stage of work. In the process of sample transportation, the quality accuracy control and transportation speed of the samples are particularly important. In the existing sample transportation work, pneumatic pipeline transportation is partially adopted. The pneumatic pipeline transportation system includes a power cabinet, which blows air into the pneumatic conveying pipeline by the power cabinet, and blows the sample bottles in the pipeline in a positive pressure manner for transmission, or the power cabinet draws air into the pneumatic conveying pipeline, and sucks the sample bottles in the pipeline in a negative pressure manner for transmission. Some practitioners have designed power cabinets. For example, CN201720462771.1 discloses a power cabinet for a sample pneumatic conveying system. Although it can realize the collection and delivery of sample bottles, the equipment still has the following defects:

[0003] 1. Since the power cabinet uses a pneumatic four-way ball valve to switch the working state of pneumatic conveying, compressed air needs to be provided as a power source, which increases the cost of use;

[0004] 2. In order to ensure the sealing performance, the valve core and the valve body will fit tightly. During the frequent switching process, wear and tear will inevitably occur between the two. Especially when there is dust and debris inside the pipeline, the wear and tear will be aggravated, and may even damage the mating surface, causing the ball valve to lose its sealing function, thereby making the output power of the power cabinet insufficient and reducing product performance.

[0005] 3. The existing fan rotates in one direction, and the air outlet is easily blocked, which reduces the performance of the equipment. Utility Model Content

[0006] In view of the technical problems existing in the prior art, the utility model provides a power cabinet for a sample pneumatic conveying system which has a simple structure, good stability, high reliability and good pneumatic conveying effect.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] A power cabinet for a sample pneumatic conveying system includes at least two fans and a control device, wherein the two fans each include a first air outlet and a second air outlet, and also include a manifold connected to a pneumatic transmission pipeline, wherein the manifold is respectively connected to the first air outlet and the second air outlet of the two fans, and when exhausting air, one of the two fans is in forward rotation and the other is in reverse rotation; when blowing air, the control device controls the blades of the two fans to interchange rotation directions.

[0009] As a further improvement of the utility model: it also includes a wind pressure detection device and a frequency converter, the wind pressure detection device is used to monitor the air pressure in the pneumatic transmission pipeline in real time, and feed back the detection result to the control device, and the control device controls the frequency converter to adjust the speed of the fan according to the received air pressure data information and sample bottle position information.

[0010] As a further improvement of the utility model: the wind pressure detection device is connected to the manifold via a connecting hose.

[0011] As a further improvement of the utility model: a sample bottle buffer device is provided at one end of the manifold connected to the pneumatic transmission pipeline, and the sample bottle buffer assembly is used to absorb the impact force of the sample bottle and slow down the speed of the sample bottle.

[0012] As a further improvement of the utility model: the sample bottle buffer device is a spring component or a rubber piece.

[0013] As a further improvement of the utility model: it also includes a silencer component, and the silencer component is connected to the fan.

[0014] As a further improvement of the utility model: a filter assembly is also provided in the manifold.

[0015] As a further improvement of the utility model: it also includes a frame, and the fans are symmetrically arranged on the frame.

[0016] Compared with the prior art, the advantages of the utility model are:

[0017] 1. The power cabinet for the sample pneumatic conveying system of the utility model is symmetrically arranged with two fans, each of which is provided with a first air outlet and a second air outlet, and the first air outlet of one fan and the second air outlet of the other fan are connected in parallel through a manifold. When exhausting air, the control device controls one of the two fans to rotate forward and the other to rotate reversely, and the two fans exhaust air at the same time; when blowing air, the control device controls the rotation directions of the blades of the two fans to interchange, and the two fans blow air at the same time, thereby realizing efficient bottle collecting and sending operations. This design simplifies the layout of the air duct, effectively reduces wind resistance, and the wind loss inside the power cabinet pipeline is smaller, so that more wind can be used for sample bottle transportation, ensuring that the system has sufficient power output, and the simple structure is also convenient for installation and repair and maintenance operations.

[0018] 2. The power cabinet for the sample pneumatic conveying system of the utility model is provided with a wind pressure detection device and a frequency converter. The wind pressure detection device monitors the air pressure in the pneumatic transmission pipeline in real time and feeds back the detection result to the control device. The control device controls the frequency converter to adjust the speed of the fan according to the received air pressure data information and the sample bottle position information, and adjusts the wind force in the pipeline in real time. This dynamic adjustment not only optimizes the distribution of wind force and ensures the smooth transmission of the sample bottle in the pipeline, but also improves the efficiency and reliability of the entire system; through the intelligent control method, it can ensure the stable operation of the pipeline system, while reducing energy consumption and improving overall performance.

[0019] 3. The power cabinet for the sample pneumatic conveying system of the utility model is designed with a sample bottle buffer device, which can effectively manage the kinetic energy generated by the sample bottle during movement; when the sample bottle contacts the sample bottle buffer device, the sample bottle buffer device will absorb or release kinetic energy, and dynamically consume wind energy when releasing kinetic energy, gradually reducing the speed of the sample bottle. This process can effectively offset the impact that may cause damage to the sample bottle, minimize the possibility of damage to the sample bottle caused by impact, thereby ensuring the integrity of the sample bottle and the stability of the sample, and the sample bottle can also avoid sample compaction in the process of gradually reducing the speed, so as to facilitate subsequent experimental analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a stereogram of the utility model in a specific embodiment.

[0021] Figure 2 It is a stereogram of another viewing angle of the utility model in a specific embodiment.

[0022] Figure 3 It is a stereogram of the fan of the utility model in a specific embodiment.

[0023] Figure 4 It is a cross-sectional view of the utility model in a specific implementation.

[0024] Figure 5 It is a state diagram of the utility model when collecting bottles.

[0025] Figure 6 It is a state diagram of the utility model when dispensing bottles.

[0026] Legend:

[0027] 1. Fan; 2. First air outlet; 3. Second air outlet; 4. Manifold; 5. Wind pressure detection device; 6. Connecting hose; 7. Sample bottle buffer device; 8. Silencer assembly; 9. Filter assembly; 10. Frame. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] like Figures 1 to 6 As shown, this embodiment discloses a power cabinet for a sample pneumatic conveying system, comprising at least two fans 1 and a control device, wherein the two fans 1 each comprise a first air outlet 2 and a second air outlet 3, and further comprise a manifold 4 connected to a pneumatic transmission pipeline, wherein the manifold 4 is respectively connected to the first air outlet 2 and the second air outlet 3 of the two fans 1, and when exhausting air, one of the two fans 1 is in forward rotation and the other is in reverse rotation; when blowing air, the control device controls the rotation directions of the blades of the two fans 1 to be interchanged.

[0030] In this embodiment, a rack 10 is further included, and the fans 1 are symmetrically arranged on the rack 10, so that the layout of the air ducts is simpler.

[0031] The power cabinet for the sample pneumatic conveying system of the present embodiment has two fans 1 symmetrically arranged, each fan 1 is provided with a first air outlet 2 and a second air outlet 3, and the first air outlet 2 of one fan 1 and the second air outlet 3 of the other fan 1 are connected in parallel through a manifold 4. When exhausting air, the control device controls one of the two fans 1 to be in forward rotation and the other to be in reverse rotation, and the two fans 1 are exhausting air at the same time; when blowing air, the control device controls the rotation directions of the blades of the two fans 1 to be interchanged, and the two fans 1 are blowing air at the same time, thereby realizing efficient bottle collecting and sending operations. This design simplifies the layout of the air duct and effectively reduces wind resistance. The wind loss inside the power cabinet pipeline is smaller, and more wind power can be used for sample bottle transportation, ensuring that the system has sufficient power output. At the same time, the simple structure is also convenient for installation and repair and maintenance operations.

[0032] In order to effectively monitor the position of the sample bottle in the pneumatic transmission pipeline, position sensors are installed at appropriate intervals on the pneumatic transmission pipeline. Through the feedback of the position sensor, the exact position of the sample bottle in the pipeline can be tracked in real time.

[0033] In this embodiment, a wind pressure detection device 5 and a frequency converter are also included. The wind pressure detection device 5 is used to monitor the air pressure in the pneumatic transmission pipeline in real time, and feed back the detection result to the control device. The control device controls the frequency converter to adjust the rotation speed of the fan 1 according to the received air pressure data information and the sample bottle position information, and adjusts the wind force in the pipeline in real time. This dynamic adjustment not only optimizes the distribution of wind force, ensures the smooth transmission of the sample bottle in the pipeline, but also improves the efficiency and reliability of the entire system; through intelligent control methods, it can ensure the stable operation of the pipeline system, while reducing energy consumption and improving overall performance.

[0034] Further, in a preferred embodiment, the wind pressure detection device 5 is connected to the manifold 4 via a connecting hose 6. In other embodiments, the wind pressure detection device 5 can be directly disposed on the manifold 4 or on a pneumatic transmission pipeline.

[0035] In this embodiment, one end of the manifold 4 connected to the pneumatic transmission pipeline is provided with a sample bottle buffer device 7, which is used to absorb the impact force of the sample bottle and slow down the speed of the sample bottle. Further, in a preferred embodiment, the sample bottle buffer device 7 is a spring assembly.

[0036] When the sample bottle is transported in the pneumatic transmission pipeline, it will pass through the position sensor. When the position sensor senses the sample bottle, the position sensor immediately sends a signal to the control device. After receiving the signal, the control system gradually reduces the speed of fan 1 through the frequency converter, thereby reducing the output power. In this process, the sample bottle will contact the spring assembly. As the kinetic energy of the sample bottle is transferred to the spring assembly, the spring assembly begins to compress, and the kinetic energy of the sample bottle is converted into elastic potential energy. This process gradually slows down the speed of the sample bottle until the speed drops to zero. Subsequently, the spring assembly begins to rebound, converting its stored elastic potential energy back into the kinetic energy of the sample bottle, pushing the sample bottle to continue moving. The sample bottle is pushed out by the action of the spring assembly. At the same time, the sample bottle is attracted by the suction of fan 1, contacts the spring assembly, and continues to convert energy. In this cycle, the kinetic energy of the sample bottle is constantly offset by the wind energy of fan 1, causing its speed to gradually decrease until it finally stops and no longer rebounds.

[0037] The structural design of this embodiment is simple, which greatly reduces the wind resistance, can effectively avoid the violent impact between the sample bottle and the pneumatic transmission pipeline, and prevent the pipeline and the sample bottle from being damaged. At the same time, due to the reciprocating motion of the sample bottle in the pneumatic transmission pipeline, it can also ensure that the sample in the sample bottle will not be over-compacted or segregated, thereby maintaining the uniformity of the sample and improving the accuracy of the test. In other embodiments, the sample bottle buffer device 7 can also be a rubber part or an air resistance spring, as long as it can play a role in slowing down the speed of the sample bottle.

[0038] In this embodiment, a silencer assembly 8 is also included, and the silencer assembly 8 is connected to the fan 1. The silencer assembly 8 can effectively reduce the noise generated when the fan 1 is running.

[0039] In this embodiment, a filter assembly 9 is further provided in the manifold 4. The filter assembly 9 can effectively prevent residues from entering the fan 1, and protect the fan 1 from the influence of residues that may exist in the pipeline, thereby extending the service life of the equipment.

[0040] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should be regarded as the protection scope of the utility model.

Claims

1. A power cabinet for a sample pneumatic conveying system, characterized in that: The invention comprises at least two fans (1) and a control device, wherein the two fans (1) each comprise a first air outlet (2) and a second air outlet (3), and further comprises a manifold (4) connected to a pneumatic transmission pipeline, wherein the manifold (4) is respectively connected to the first air outlet (2) and the second air outlet (3) of the two fans (1); when exhausting air, one of the two fans (1) is in forward rotation and the other is in reverse rotation; when blowing air, the control device controls the blades of the two fans (1) to interchange their rotation directions.

2. The power cabinet for the sample pneumatic conveying system according to claim 1, characterized in that: It also includes a wind pressure detection device (5) and a frequency converter. The wind pressure detection device (5) is used to monitor the air pressure in the pneumatic transmission pipeline in real time and feed back the detection result to the control device. The control device controls the frequency converter to adjust the rotation speed of the fan (1) based on the received air pressure data information and sample bottle position information.

3. The power cabinet for the sample pneumatic conveying system according to claim 2, characterized in that: The wind pressure detection device (5) is connected to the manifold (4) via a connecting hose (6).

4. The power cabinet for a sample pneumatic conveying system according to claim 1, characterized in that: A sample bottle buffer device (7) is provided at one end of the manifold (4) connected to the pneumatic transmission pipeline. The sample bottle buffer device (7) is used to absorb the impact force of the sample bottle and slow down the speed of the sample bottle.

5. The power cabinet for the sample pneumatic conveying system according to claim 4, characterized in that: The sample bottle buffer device (7) is a spring component or a rubber component.

6. The power cabinet for a sample pneumatic conveying system according to any one of claims 1 to 5, characterized in that: It also comprises a silencer component (8), wherein the silencer component (8) is connected to the fan (1).

7. The power cabinet for a sample pneumatic conveying system according to any one of claims 1 to 5, characterized in that: A filter assembly (9) is also provided in the manifold (4).

8. The power cabinet for a sample pneumatic conveying system according to any one of claims 1 to 5, characterized in that: It also comprises a frame (10), on which two fans (1) are symmetrically arranged.

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