CN210268850U

CN210268850U - Explosion-proof negative pressure weighing room

Info

Publication number: CN210268850U
Application number: CN201921293961.0U
Authority: CN
Inventors: 顾胜
Original assignee: Wuxi Jingyuan Purification Equipment Co ltd
Current assignee: Wuxi Jingyuan Purification Equipment Co ltd
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2020-04-07
Anticipated expiration: 2029-08-12

Abstract

The utility model discloses an explosion-proof negative pressure weighing room relates to weighing room technical field, for solving the uncontrolled problem of current air temperature. The inside of body is provided with the area of weighing, the below of the regional one side of weighing is provided with the ventilation chamber, the primary filter is installed to the one end in ventilation chamber, the intermediate position department in ventilation chamber installs the secondary filter, explosion-proof negative pressure fan is installed to the top of installation piece, explosion-proof negative pressure fan's upper end is provided with air pipe, air pipe's externally mounted has the cooling tube, the top of installation base is provided with the cooler bin, the top of cooler bin is provided with the circulating pump, static pressure case is installed to air pipe's one end, static pressure case's below is provided with the supply-air outlet, the inside of supply-air outlet is provided with first ventilation dish, high efficiency filter is installed to the below of supply-air outlet, gas detector is installed to one side of high efficiency filter.

Description

Explosion-proof negative pressure weighing room

Technical Field

The utility model relates to a weigh room technical field, specifically be an explosion-proof negative pressure and weigh room.

Background

The weighing chamber is a special local purifying device for pharmaceutical, microbiological research and scientific experiment, and provides a vertical one-way air flow. Part of the clean air circulates in the working area and part of the clean air is discharged to the nearby area, so that negative pressure is generated in the working area. The dust and reagent weighing and split charging are carried out in the equipment, the dust and reagent can be controlled to overflow and rise, the suction harm of the dust and the reagent to human bodies is prevented, the cross contamination of the dust and the reagent can be avoided, and the safety of the external environment and indoor personnel is protected.

However, the existing negative pressure weighing chamber can generate a large amount of heat due to continuous operation of the fan when working, so that the temperature of the air passing through is increased, the excessive temperature easily causes failure of the objects if the objects are weighed and has temperature limitation, and meanwhile, if the temperature continuously rises, potential safety hazards can occur, so that the existing requirements are not met, and the explosion-proof negative pressure weighing chamber is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an explosion-proof negative pressure weighing room to solve the uncontrolled problem of air temperature who proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an explosion-proof negative pressure weighing chamber comprises a body, wherein a weighing area is arranged in the body, a ventilation cavity is arranged below one side of the weighing area, an initial filter is arranged at one end of the ventilation cavity, a middle filter is arranged in the middle of the ventilation cavity, an installation block is arranged above the middle filter, an explosion-proof negative pressure fan is arranged above the installation block, an air duct is arranged at the upper end of the explosion-proof negative pressure fan, a cooling pipe is arranged outside the air duct, a water inlet pipe is arranged at one end of the cooling pipe, one end of the water inlet pipe extends to the outside of the body, a water outlet pipe is arranged at the other end of the cooling pipe, the water outlet pipe extends to the outside of the body, an installation base is arranged below one side of the body, a cooling box is arranged above the installation base, and a heat radiating fin is arranged on one side of the cooling, and radiating fin is provided with a plurality of, the top of cooling box is provided with the circulating pump, the static pressure case is installed to air pipe's one end, the acoustical panel is installed to the inner wall of static pressure case, the below of static pressure case is provided with the supply-air outlet, the inside of supply-air outlet is provided with first ventilation dish, the below of first ventilation dish is provided with the second ventilation dish, the inside of first ventilation dish and second ventilation dish all is provided with the ventilation groove, high efficiency filter is installed to the below of supply-air outlet, gas detector is installed to one side of high efficiency filter, one side of static pressure case is provided with the air exit, and the one end of air exit extends to the outside of body.

Preferably, cooling tube and air pipe fixed connection, the one end of inlet tube and the one end sealing connection of circulating pump, the one end and the cooler bin sealing connection of outlet pipe, the circulating pump passes through connecting pipe sealing connection with the cooler bin.

Preferably, the mounting base is fixedly connected with the cooling box, and the radiating fins are attached to the cooling box.

Preferably, the air supply outlet is fixedly connected with the static pressure box, the first ventilation disc is fixedly connected with the air supply outlet, and the second ventilation disc is rotatably connected with the first ventilation disc.

Preferably, the gas detector is connected with the body through a bolt.

Preferably, the primary filter is fixedly connected with one end of the ventilation cavity, the intermediate filter is fixedly connected with the ventilation cavity, the static pressure box is fixedly connected with the ventilation pipeline, and the high-efficiency filter is fixedly connected with the air supply outlet.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses an outside at air pipe is provided with the cooling tube, the inlet tube of cooling tube one end is connected with the circulating pump, the outlet pipe and the cooling box of the cooling tube other end are connected, through opening the circulating pump, the circulating pump is by inlet tube suction to cooling tube with the inside coolant liquid of cooling box, enter into the cooling box from the outlet pipe again, with this reciprocating cycle, make the coolant liquid constantly exchange with the inside heat production of air pipe, the inside temperature of air pipe has been reduced, thereby make in-process with temperature control at reasonable region in the air supply, on the one hand, guaranteed to provide suitable temperature for article at the weighing in-process, on the other hand, because refrigerated air can form the circulation in inside, so reduced the temperature of device at the during operation, the security obtains certain assurance.

2. The utility model discloses a be provided with accuse wind device in the inside of supply-air outlet, accuse wind device mainly comprises first ventilation dish, the second ventilation dish, the ventilation groove, because first ventilation dish is connected through pivot control with the second ventilation dish, so first ventilation dish can rotate on the second ventilation dish, first ventilation dish all is provided with the ventilation groove with the inside of second ventilation dish in addition, because turned angle's difference, the open space in ventilation groove is also different, can control the volume of wind of discharging from this, guarantee that the volume of wind of sending out keeps even stable state.

3. The utility model discloses an use explosion-proof negative-pressure air fan to replace ordinary centrifugal fan, obtain further promotion in the aspect of the security, set up gas detector in the inside in the region of weighing simultaneously, gas detector can detect out the flammability of inside air, if the inside combustible gas that produces, gas detector can send out the police dispatch newspaper, and the staff can in time handle and take precautions against, prevents to weigh the explosion that the room produced by combustible gas.

Drawings

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

FIG. 2 is an overall side view of the present invention;

fig. 3 is an exploded view of the vent panel of the present invention.

In the figure: 1. a body; 2. a weighing area; 3. a primary filter; 4. a medium-efficiency filter; 5. a ventilation cavity; 6. an explosion-proof negative pressure fan; 7. mounting blocks; 8. a ventilation duct; 9. a cooling tube; 10. a water inlet pipe; 11. a water outlet pipe; 12. a circulation pump; 13. a connecting pipe; 14. a cooling tank; 15. a heat dissipating fin; 16. installing a base; 17. a static pressure box; 18. an air supply outlet; 19. a first vent disc; 20. a second vent disc; 21. a high efficiency filter; 22. an air outlet; 23. a gas detector; 24. a ventilation slot; 25. an acoustical panel.

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.

Referring to fig. 1-3, the present invention provides an embodiment: an explosion-proof negative pressure weighing room comprises a body 1, a weighing area 2 is arranged in the body 1, a ventilation cavity 5 is arranged below one side of the weighing area 2, a primary filter 3 is arranged at one end of the ventilation cavity 5, a middle-effect filter 4 is arranged in the middle of the ventilation cavity 5, an installation block 7 is arranged above the middle-effect filter 4, an explosion-proof negative pressure fan 6 is arranged above the installation block 7, a ventilation pipeline 8 is arranged at the upper end of the explosion-proof negative pressure fan 6, a cooling pipe 9 is arranged outside the ventilation pipeline 8, a water inlet pipe 10 is arranged at one end of the cooling pipe 9, one end of the water inlet pipe 10 extends to the outside of the body 1, a water outlet pipe 11 is arranged at the other end of the cooling pipe 9, the water outlet pipe 11 extends to the outside of the body 1, an installation base 16 is arranged below one side of the body 1, a cooling box 14 is arranged above the installation base, and radiating fins 15 are provided with a plurality of, cooling box 14 is provided with circulating pump 12 in the top, plenum box 17 is installed to the one end of air pipe 8, the abatvoix 25 is installed to the inner wall of plenum box 17, plenum box 17's below is provided with supply-air outlet 18, the inside of supply-air outlet 18 is provided with first ventilation dish 19, the below of first ventilation dish 19 is provided with second ventilation dish 20, first ventilation dish 19 all is provided with ventilation groove 24 with the inside of second ventilation dish 20, high efficiency filter 21 is installed to the below of supply-air outlet 18, gas detector 23 is installed to one side of high efficiency filter 21, one side of plenum box 17 is provided with air exit 22, and the one end of air exit 22 extends to the outside of body 1.

Furthermore, cooling tube 9 and air pipe 8 fixed connection, the one end of inlet tube 10 and the one end sealing connection of circulating pump 12, the one end and the cooling tank 14 sealing connection of outlet pipe 11, circulating pump 12 and cooling tank 14 pass through connecting pipe 13 sealing connection, the coolant liquid constantly exchanges with the inside heat production of air pipe 8, has reduced the inside temperature of air pipe 8 to make at the in-process of air supply with temperature control in reasonable region.

Further, the mounting base 16 is fixedly connected with the cooling box 14, the radiating fins 15 are attached to the cooling box 14, the radiating fins 15 can conduct heat to the cooling box 14, and the temperature inside the cooling box 14 cannot rise.

Further, the air supply outlet 18 is fixedly connected with the static pressure box 17, the first ventilation disc 19 is fixedly connected with the air supply outlet 18, the second ventilation disc 20 is rotatably connected with the first ventilation disc 19, and due to different rotation angles, the opening spaces of the ventilation grooves 24 are different, so that the exhaust air volume can be controlled.

Further, the gas detector 23 is connected to the main body 1 by bolts, and the gas detector 23 can detect the combustibility of the internal air.

Further, the one end fixed connection in primary filter 3 and ventilation chamber 5, well effect filter 4 and ventilation chamber 5 fixed connection, static pressure case 17 and ventilation pipe 8 fixed connection, high efficiency filter 21 and supply-air outlet 18 fixed connection, through the cooperation of primary filter 3 with well effect filter 4, filter the inside powder, guarantee the cleanness of air, static pressure case 17 can be with the air conversion who has the dynamic pressure static pressure simultaneously, make air flow rate even, filter and form downward perpendicular air current through high efficiency filter 21.

The working principle is as follows: when the device is used, the explosion-proof negative pressure fan 6 is started to enable the internal air to start to circulate, the internal powder is filtered through the matching of the primary filter 3 and the intermediate filter 4 to ensure the cleanness of the air, meanwhile, the static pressure box 17 can convert the air with dynamic pressure into static pressure to enable the air flow rate to be uniform, the air flow rate is filtered through the high-efficiency filter 21 to form downward vertical air flow to ensure that negative pressure is formed inside the weighing area 2 to prevent the weighing powder from being raised, the cooling pipe 9 is arranged outside the ventilation pipeline 8, the water inlet pipe 10 at one end of the cooling pipe 9 is connected with the circulating pump 12, the water outlet pipe 11 at the other end of the cooling pipe 9 is connected with the cooling box 14, and by starting the circulating pump 12, the cooling liquid inside the cooling box 14 is pumped into the cooling pipe 9 through the water inlet pipe 10 and then enters the cooling box 14 from the, the cooling liquid is continuously exchanged with the heat inside the ventilation pipeline 8, the temperature inside the ventilation pipeline 8 is reduced, and therefore the temperature is controlled in a reasonable area in the air supply process, on one hand, the proper temperature for articles in the weighing process is guaranteed, on the other hand, the temperature of the devices in work is reduced due to the fact that cooled air can form circulation inside, and safety is guaranteed to a certain degree, the air control device is arranged inside the air supply opening 18 and mainly comprises a first ventilation disc 19, a second ventilation disc 20 and ventilation grooves 24, the first ventilation disc 19 and the second ventilation disc 20 are in control connection through rotating shafts, the first ventilation disc 19 can rotate on the second ventilation disc 20, in addition, the ventilation grooves 24 are arranged inside the first ventilation disc 19 and the second ventilation disc 20, and due to the difference of rotating angles, the opening space of ventilation groove 24 is also different, can control the exhaust air volume from this, guarantees to send out the air volume and keeps even stable state, sets up gas detector 23 in the inside in the district of weighing simultaneously, and gas detector 23 can detect out the flammability of inside air, if inside produces combustible gas, gas detector 23 can send out the police dispatch newspaper, and the staff can in time handle and take precautions against, prevents to weigh the explosion that the room produced by combustible gas.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an explosion-proof negative pressure weighing room, includes body (1), its characterized in that: the inside of body (1) is provided with weighing area (2), the below of weighing area (2) one side is provided with ventilation chamber (5), primary filter (3) is installed to the one end in ventilation chamber (5), the intermediate position department in ventilation chamber (5) installs secondary filter (4), the top of secondary filter (4) is provided with installation piece (7), explosion-proof negative pressure fan (6) is installed to the top of installation piece (7), the upper end of explosion-proof negative pressure fan (6) is provided with air pipe (8), the externally mounted of air pipe (8) has cooling tube (9), the one end of cooling tube (9) is provided with inlet tube (10), and the one end of inlet tube (10) extends to the outside of body (1), the other end of cooling tube (9) is provided with outlet pipe (11), and outlet pipe (11) extends to the outside of body (1), the air conditioner is characterized in that an installation base (16) is arranged below one side of the body (1), a cooling box (14) is arranged above the installation base (16), heat dissipation fins (15) are arranged on one side of the cooling box (14), a plurality of heat dissipation fins (15) are arranged on the heat dissipation fins, a circulating pump (12) is arranged above the cooling box (14), a static pressure box (17) is installed at one end of the ventilating pipeline (8), an acoustical panel (25) is installed on the inner wall of the static pressure box (17), an air supply opening (18) is arranged below the static pressure box (17), a first ventilating disc (19) is arranged inside the air supply opening (18), a second ventilating disc (20) is arranged below the first ventilating disc (19), ventilating grooves (24) are formed inside the first ventilating disc (19) and the second ventilating disc (20), and a high-efficiency filter (21) is arranged below the air supply opening (18), gas detector (23) are installed to one side of high efficiency filter (21), one side of static pressure case (17) is provided with air exit (22), and the outside of body (1) is extended to the one end of air exit (22).

2. An explosion-proof negative pressure weighing chamber as defined in claim 1, wherein: cooling tube (9) and air pipe (8) fixed connection, the one end of inlet tube (10) and the one end sealing connection of circulating pump (12), the one end and cooler bin (14) sealing connection of outlet pipe (11), circulating pump (12) pass through connecting pipe (13) sealing connection with cooler bin (14).

3. An explosion-proof negative pressure weighing chamber as defined in claim 1, wherein: the mounting base (16) is fixedly connected with the cooling box (14), and the radiating fins (15) are attached to the cooling box (14).

4. An explosion-proof negative pressure weighing chamber as defined in claim 1, wherein: the air supply opening (18) is fixedly connected with the static pressure box (17), the first ventilation disc (19) is fixedly connected with the air supply opening (18), and the second ventilation disc (20) is rotatably connected with the first ventilation disc (19).

5. An explosion-proof negative pressure weighing chamber as defined in claim 1, wherein: the gas detector (23) is connected with the body (1) through a bolt.

6. An explosion-proof negative pressure weighing chamber as defined in claim 1, wherein: the primary filter (3) is fixedly connected with one end of the ventilation cavity (5), the intermediate filter (4) is fixedly connected with the ventilation cavity (5), the static pressure box (17) is fixedly connected with the ventilation pipeline (8), and the high-efficiency filter (21) is fixedly connected with the air supply opening (18).