CN213032520U

CN213032520U - Low-pressure damp-heat drainage device

Info

Publication number: CN213032520U
Application number: CN202021789994.7U
Authority: CN
Inventors: 林德忠; 曹亮; 杨洋
Original assignee: Friend Tianyu Environment Technology Chengdu Co ltd
Current assignee: Friend Tianyu Environment Technology Chengdu Co ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-04-23
Anticipated expiration: 2030-08-25

Abstract

The utility model discloses a low-pressure damp-heat drainage device, which comprises a box body, the upper portion of the left side wall of the box body is provided with a vacuum pump, a solenoid valve is arranged on a pipeline of the vacuum pump, the middle part of a baffle is connected with one end of a water collecting tank through a pipeline, a solenoid valve is arranged on a pipeline between the baffle and the water collecting tank, the other end of the water collecting tank is provided with one end of a water pipe, a solenoid valve is arranged on a pipeline of the water pump, one end of a humidifying device is arranged in the water tank, the other end of the humidifying device penetrates through the upper portion of the right side wall of the box body, the drainage mode greatly reduces the variation amplitude of the air pressure in a box body cavity on the upper portion of the baffle, reduces the working frequency of the vacuum pump; the universal wheels at the bottom of the box body are provided with damping devices, and the arrangement of the damping devices can avoid the problem that parts are damaged due to jolting when equipment is transported or moved.

Description

Low-pressure damp-heat drainage device

Technical Field

The utility model relates to a drainage technical field, specific field is the moist heat drainage device of low atmospheric pressure.

Background

The damp-heat test box is necessary test equipment in the fields of aviation, automobiles, household appliances, scientific research and the like, and is used for testing and determining parameters and performances of electricians, electronics and other products and materials after the temperature environment changes in high temperature, low temperature, damp-heat degree or constant test. The series of products are suitable for testing various performance indexes of aerospace products, information electronic instruments, materials, electricians, electronic products and various electronic components in high and low temperature or damp and hot environments.

Inside ponding phenomenon that has of damp and hot proof box produces, and some damp and hot are experimental to be gone on under negative pressure environment, need make proof box inside and outside atmosphere communicate with each other during the drainage, this negative pressure environment that can destroy proof box inside undoubtedly for the vacuum pump has to frequently open and stop the stability of guaranteeing proof box internal gas pressure, this service life that has reduced the vacuum pump undoubtedly, the maintenance cost of the vacuum pump that increases, here, propose a neotype low pressure damp and hot drainage device and solve this problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a humid hot drainage device of low pressure to the vacuum pump that proposes has to frequently open and stop the stability of guaranteeing the air pressure in the proof box in solving above-mentioned background art, this life who has reduced the vacuum pump, the problem of the maintenance cost of the vacuum pump of increase.

In order to achieve the above object, the utility model provides a following technical scheme: the low-pressure damp-heat drainage device comprises a box body, wherein two box doors are arranged on the front side wall of the box body, observation windows are arranged on the two box doors, a partition plate is arranged inside the box body, a heating device, a temperature sensor, a humidity sensor, an air pressure sensor and a placing frame are arranged in a cavity above the partition plate, the interior of the box body corresponds to the cavity, a plurality of through holes are formed in the placing frame, a vacuum pump is arranged on the upper portion of the left side wall of the box body, a solenoid valve is arranged on a pipeline of the vacuum pump, the middle portion of the partition plate is connected with one end of a water collecting tank through a pipeline, a solenoid valve is arranged on the pipeline between the partition plate and the water collecting tank, one end of a water pipe is arranged at the other end of the water collecting tank, a water pump is arranged at the other end of, the water tank is internally provided with one end of a humidifying device, the other end of the humidifying device penetrates through the upper part of the right side wall of the box body, and the box body is provided with a PLC (programmable logic controller) and a liquid crystal display screen.

Preferably, four corners of the bottom of the box body are provided with universal wheels, and the universal wheels are provided with damping devices.

Preferably, damping device includes two connecting rods, two the one end of connecting rod all with the upper portion of universal wheel is articulated mutually, two the other end of connecting rod all articulates there is the slider, the lower surface of box is equipped with two connecting blocks, two be equipped with the stroke pole between the connecting block, the slider cover is established on the stroke pole, correspond on the stroke pole the slider with position between the connecting block all overlaps and is equipped with compression spring.

Preferably, the cross-sectional shape of the flight bar is polygonal.

Preferably, the upper surface of the partition board is a conical surface.

Preferably, a protective cover is arranged outside the vacuum pump.

Preferably, the protective cover is connected with the outer side wall of the box body through bolts.

Compared with the prior art, the beneficial effects of the utility model are that: the low-pressure damp-heat drainage device comprises a PLC (programmable logic controller) and a water collecting tank, wherein the PLC intelligently adjusts the temperature, humidity and pressure in the tank according to information transmitted by each sensor, accumulated water in the tank is stored in the water collecting tank, when a liquid level sensor in the water collecting tank senses that the accumulated water in the water collecting tank is too much, the PLC closes an electromagnetic valve on the water collecting tank, opens the electromagnetic valve on a water pipe, controls a water pump to work to pump out the accumulated water in the water collecting tank, the electromagnetic valve on the water pipe is closed after the accumulated water is pumped out, the electromagnetic valve on the water tank is opened, and the accumulated water can be continuously collected by the water tank; the universal wheels at the bottom of the box body are provided with damping devices, and the arrangement of the damping devices can avoid the problem that parts are damaged due to jolting when equipment is transported or moved. Compared with the prior art, the utility model discloses a technical means simple structure, reliable operation, facilitate promotion.

Drawings

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic sectional view of the front view of the present invention;

fig. 3 is a schematic view of a partial enlarged structure at a in fig. 2 according to the present invention;

fig. 4 is a schematic diagram of a partial enlarged structure at B in fig. 2 according to the present invention.

In the figure: 1-box body, 2-box door, 3-observation window, 4-clapboard, 5-heating device, 6-temperature sensor, 7-humidity sensor, 8-baroceptor, 9-placing rack, 10-through hole, 11-vacuum pump, 12-water collecting tank, 13-water pipe, 14-water pump, 15-water tank, 16-humidifying device, 17-liquid crystal display screen, 18-universal wheel, 19-damping device, 1901-connecting rod, 1902-sliding block, 1903-connecting block, 1904-stroke rod, 1905-compression spring and 20-protective cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the low-pressure damp-heat drainage device comprises a box body 1, wherein two box doors 2 are arranged on the front side wall of the box body 1, good air tightness is required between the upper box door 2 and the box body 1, the lower box door 2 has no special requirement, two box doors 2 are respectively provided with an observation window 3, the upper observation window 3 corresponds to a position of a placement frame 9 mentioned below, the lower observation window 3 corresponds to a position of a water collecting box 12 mentioned below, a partition plate 4 is arranged in the box body 1, the partition plate 4 divides the internal space of the box body 1 into an upper cavity and a lower cavity, a heating device 5, a temperature sensor 6, a humidity sensor 7, an air pressure sensor 8 and the placement frame 9 are arranged in the cavity above the partition plate 4 in the box body 1, each sensor and sensor are the prior art means, no repeated description is given here, the heating device 5 can be a heating pipeline or a heating lamp, can be flexibly selected by related technicians, a plurality of through holes 10 are formed in the placing frame 9, a vacuum pump 11 is arranged on the upper portion of the left side wall of the box body 1, a solenoid valve is arranged on a pipeline of the vacuum pump 11, the solenoid valve is a normally closed solenoid valve, the middle portion of the partition plate 4 is connected with one end of the water collecting tank 12 through a pipeline, a liquid level sensor is arranged inside the water collecting tank 12, a solenoid valve is arranged on a pipeline between the partition plate 4 and the water collecting tank 12, the solenoid valve is a normally open solenoid valve, one end of a water pipe 13 is arranged at the other end of the water collecting tank 12, a water pump 14 is arranged at the other end of the water pipe 13, a solenoid valve is arranged on a pipeline of the water pump 14, the solenoid valve is a normally closed solenoid valve, the outlet end of the water pump 14 penetrates through the lower, the other end of the humidifying device 16 penetrates through the upper part of the right side wall of the box body 1, a partition plate can be arranged in the box body 1, the purpose of separation is to seal a cavity on the upper part of one side of the partition plate, meanwhile, the extra part on the other side can protect a pipeline, a PLC (programmable logic controller) and a liquid crystal display screen 17 are arranged on the box body 1, each sensor and sensor are connected with the PLC, relevant personnel preset corresponding ranges of temperature, humidity, liquid level height and air pressure value, and when the temperature is lower than the preset range, the PLC controls the heating device 5 to start working; when the temperature is higher than the preset range, the PLC controller controls the heating device 5 to stop working, when the humidity is lower than the preset range, the PLC controller controls the humidifying device 16 to start working, and when the humidity is higher than the preset range, the PLC controller controls the humidifying device 16 to stop working; when the liquid level is higher than the preset range, the PLC controls the electromagnetic valve on the water collecting tank 12 to be closed, the electromagnetic valve on the water pipe 13 to be opened, the water pump 14 works to pump accumulated water out, the water pump 14 stops working after working for several seconds, at the moment, the accumulated water is pumped out, then the PLC controls the electromagnetic valve on the pipeline of the water collecting tank 12 to be opened, and the electromagnetic valve on the water pipe 13 is closed; when the air pressure is higher than the preset range, the PLC firstly controls the electromagnetic valve on the pipeline of the vacuum pump 11 to be opened, then controls the vacuum pump 11 to work, when the air pressure at the upper part of the box body 1 reaches the preset air pressure range, the PLC firstly controls the electromagnetic valve on the pipeline of the vacuum pump 11 to be closed, then controls the vacuum pump 11 to stop working, and the PLC program of the control process can be written by related technicians.

Specifically, four corners of the bottom of the box body 1 are provided with universal wheels 18, the universal wheels 18 can be locked, and the universal wheels 18 are provided with damping devices 19.

Specifically, the damping device 19 includes two connecting rods 1901, one end of each of the two connecting rods 1901 is hinged to the upper portion of the universal wheel 18, the other end of each of the two connecting rods 1901 is hinged to a slider 1902, the lower surface of the box 1 is provided with two connecting blocks 1903, a stroke rod 1904 is arranged between the two connecting blocks 1903, the slider 1902 is sleeved on the stroke rod 1904, and a compression spring 1905 is sleeved on the stroke rod 1904 at a position corresponding to the position between the slider 1902 and the connecting block 1903, which is an implementation form of the damping device 19, and the compression spring 1905 is compressed by the sliding of the slider 1902 on the stroke rod 1904, so as to provide the effect of vibration attenuation.

Specifically, the cross-sectional shape of the stroke rod 1904 is a polygon, and accordingly, the shape of the stroke hole in the slider 1902 is the same as the shape of the stroke rod 1904, which is done for the purpose of preventing the universal wheel 18 from rotating about the stroke rod 1904.

Particularly, the upper surface of baffle 4 is the circular conical surface, adopts the circular conical surface can be better accomplish the collection to ponding, and ponding also can be more convenient the convergence in the inlet pipe of header tank 12 department.

Specifically, a protective cover 20 is disposed outside the vacuum pump 11, and a plurality of through grooves are formed in the protective cover 20.

Specifically, the protection cover 20 is connected to the outer wall of the case 1 by bolts.

The working principle is as follows: the utility model discloses when using, put the sample for the experiments back on rack 9, close upper portion chamber door 2, after each numerical value of each sensor had been preset, alright start this equipment. When the temperature is lower than the preset range, the PLC controller controls the heating device 5 to start working; when the temperature is higher than the preset range, the PLC controller controls the heating device 5 to stop working, when the humidity is lower than the preset range, the PLC controller controls the humidifying device 16 to start working, and when the humidity is higher than the preset range, the PLC controller controls the humidifying device 16 to stop working; when the liquid level is higher than the preset range, the PLC controls the electromagnetic valve of the pipeline of the water collecting tank 12 to be closed, the electromagnetic valve on the water pipe 13 to be opened, the water pump 14 works to pump accumulated water out, the water pump 14 stops working after working for several seconds, at the moment, the accumulated water is pumped out, then the PLC controls the electromagnetic valve on the pipeline of the water collecting tank 12 to be opened, and the electromagnetic valve on the water pipe 13 is closed; when atmospheric pressure is higher than the predetermined scope, the PLC controller at first controls the solenoid valve on the 11 pipelines of vacuum pump and opens, then control vacuum pump 11 work, when atmospheric pressure on 1 upper portion of box reached predetermined atmospheric pressure scope, the PLC controller at first controls the solenoid valve on the 11 pipelines of vacuum pump and closes, then control vacuum pump 11 stop work, so can realize the flexible control of 1 upper portion cavity indoor temperature of box, humidity and atmospheric pressure value, and the fluctuation range of 1 upper portion cavity atmospheric pressure value of box when very big degree reduces to get rid of ponding, reduce opening of vacuum pump 11 and stop the number of times, increase its life, damping device 19 can reduce the risk of equipment damage in transportation or the mobile engineering, the device is whole to use reliably.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the record of description and attached drawing, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model is including the conventional connected mode of circuit connection adoption conventional among the prior art, and here detailed description is not again.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Humid hot drainage device of low atmospheric pressure, including box (1), its characterized in that: the box is characterized in that two box doors (2) are arranged on the front side wall of the box body (1), observation windows (3) are arranged on the two box doors (2), a partition plate (4) is arranged inside the box body (1), a heating device (5), a temperature sensor (6), a humidity sensor (7), an air pressure sensor (8) and a placing frame (9) are arranged in a cavity above the partition plate (4) corresponding to the inside of the box body (1), a plurality of through holes (10) are formed in the placing frame (9), a vacuum pump (11) is arranged on the upper portion of the left side wall of the box body (1), an electromagnetic valve is arranged on a pipeline of the vacuum pump (11), the middle portion of the partition plate (4) is connected with one end of a water collecting box (12) through a pipeline, the electromagnetic valve is arranged on a pipeline between the partition plate (4) and the water collecting box (12), and one end of a, the other end of water pipe (13) is equipped with water pump (14), be equipped with the solenoid valve on the pipeline of water pump (14), the exit end of water pump (14) runs through the left side wall lower part of box (1), the inside downside wall of box (1) is equipped with water tank (15), be equipped with the one end of humidification device (16) in water tank (15), the other end of humidification device (16) runs through the right side wall upper portion of box (1), be equipped with PLC controller and liquid crystal display (17) on box (1).

2. The low pressure wet heat drain apparatus of claim 1, wherein: the four corners of the bottom of the box body (1) are provided with universal wheels (18), and the universal wheels (18) are provided with damping devices (19).

3. The low-pressure moist heat drain apparatus according to claim 2, characterized in that: damping device (19) include two connecting rods (1901), two the one end of connecting rod (1901) all with the upper portion of universal wheel (18) is articulated mutually, two the other end of connecting rod (1901) all articulates there is slider (1902), the lower surface of box (1) is equipped with two connecting blocks (1903), two be equipped with stroke pole (1904) between connecting block (1903), slider (1902) cover is established on stroke pole (1904), correspond on stroke pole (1904) slider (1902) with position between connecting block (1903) all overlaps and is equipped with compression spring (1905).

4. The low air pressure wet and hot drain of claim 3, wherein: the cross-sectional shape of the stroke rod (1904) is polygonal.

5. The low pressure wet heat drain apparatus of claim 1, wherein: the upper surface of the partition plate (4) is a conical surface.

6. The low pressure wet heat drain apparatus of claim 1, wherein: and a protective cover (20) is arranged outside the vacuum pump (11).

7. The low pressure wet heat drain apparatus of claim 6, wherein: the protective cover (20) is connected with the outer side wall of the box body (1) through bolts.