WO2020211099A1

WO2020211099A1 - Accelerated evaporation chamber for voc, formaldehyde, free gaseous substances and/or hydrocarbons

Info

Publication number: WO2020211099A1
Application number: PCT/CN2019/083681
Authority: WO
Inventors: 夏可瑜
Original assignee: 东莞市升微机电设备科技有限公司
Priority date: 2019-04-15
Filing date: 2019-04-22
Publication date: 2020-10-22
Also published as: CN109966846A

Abstract

An accelerated evaporation chamber for VOCs, formaldehyde, free gaseous substances and/or hydrocarbons, comprising a pressure-bearing evaporation chamber (1), a fast air intake device (2) and/or a slow air intake device (3) and/or an air intake valve (9), a pressure sensor or pressure gauge (5) used for detecting pressure in the evaporation chamber (1), at least one set of vacuum devices (6) used for the vacuum pumping of the evaporation chamber (1), and at least one set of purifying and filtering devices used for the purification of an internal gas of the evaporation chamber (1). The pressure sensor or pressure gauge (5), the vacuum device (6), and the fast air intake device (2) and/or the slow air intake device (3) and/or the air intake valve (9) are separately connected to the evaporation chamber (1). The purifying and filtering devices are installed at an inner part of the evaporation chamber (1) and/or installed at an outer part of the evaporation chamber (1), and communicate with the inner part of the evaporation chamber (1).

Description

An accelerated evaporation chamber for VOC, formaldehyde, free gaseous substances and/or hydrocarbons

Technical field

The invention relates to the technical field of pollutant treatment equipment, and more specifically, to a VOC, formaldehyde, extractable free gaseous substance and/or hydrocarbon (HC) accelerated evaporation chamber.

Background technique

With the continuous improvement of people's living standards, people's requirements for product quality have also been greatly improved, especially the VOC, formaldehyde, hydrocarbon (HC), and harmful gas indicators in the product must be limited to a reasonable range. Ensure that the human body is not harmed by toxic and harmful substances such as formaldehyde. For example, plastic parts, textiles and other products contain VOC, formaldehyde, free gaseous substances, hydrocarbons (HC) and other toxic substances. To protect human health, it is necessary to treat plastic parts, textiles, furniture, decoration materials and other non-metallic materials. VOC, formaldehyde, free gaseous substances, and hydrocarbons (HC) contained in products such as parts are processed to obtain qualified products. However, the existing pollutant treatment equipment has a poor effect in the process of extracting pollutants with a vacuum pump, and the pollutants extracted by the vacuum will fill the inside of the evaporation chamber. When the pressure in the evaporation chamber is restored, the contaminants that have been pumped out will return to the product.

Summary of the invention

The purpose of the present invention is to overcome the above-mentioned defects in the prior art and provide an accelerated evaporation chamber for VOC, formaldehyde, free gaseous substances and/or hydrocarbons.

In order to achieve the above objective, the present invention provides an accelerated evaporation chamber for VOC, formaldehyde, free gaseous substances and/or hydrocarbons, including a pressurized evaporation chamber, a fast air inlet device and/or a slow air inlet device and/or A gas valve, a pressure sensor or pressure gauge for detecting the pressure in the evaporation chamber, at least one set of vacuum devices for vacuuming the evaporation chamber, and at least one set of purification filtering devices for purifying the gas inside the evaporation chamber, the pressure sensor Or a pressure gauge, a vacuum device, a fast air inlet device and/or a slow air inlet device and/or an air inlet valve are respectively connected to the evaporation chamber, and the purification filter device is installed inside the evaporation chamber and/or installed in the evaporation chamber And communicate with the inside of the evaporation chamber.

Preferably, the purification filter device includes an internal filter module and a fan or air pump. The internal filter module and the fan or air pump are all located outside the evaporation chamber and connected to the inside of the evaporation chamber through an external circulation pipe. Both ends of the external circulation pipe are communicated with the inside of the evaporation chamber.

Preferably, the purification filter device includes an internal filter module and a fan or air pump. The internal filter module and the fan or the air pump are all located inside the evaporation chamber. The internal filter module is installed in the connection with the fan or the air pump. On the internal pipeline, or the internal filter module is installed on one or more inner walls of the evaporation chamber.

Preferably, the purification filter device includes an internal filter module and a fan or air pump, the internal filter module is located inside the evaporation chamber or/and installed on one or more inner walls of the evaporation chamber, and the fan or air pump Located outside the evaporation chamber, the fan or air pump is connected to the inside of the evaporation chamber through an external circulation pipe, and both ends of the external circulation pipe are connected to the inside of the evaporation chamber.

Preferably, the internal filter module is configured as a formaldehyde and/or VOC and/or HC and/or dust filter.

Preferably, the external circulation pipeline is a pressure-bearing pipeline, and a pipeline valve is installed at the inlet and/or outlet where the external circulation pipeline is connected to the evaporation chamber.

Preferably, the vacuum device includes a check valve and a vacuum pump or a vacuum pump controlled by a frequency conversion, the check valve and the vacuum pump are connected to the exhaust pipe of the evaporation chamber, and the check valve is located at the intake end of the vacuum pump or At the air outlet end of the vacuum pump, the vacuum pump and the pressure sensor are electrically connected to the controller.

Preferably, the exhaust pipe of the evaporation chamber is also provided with a VOC, formaldehyde and HC recovery device at the gas outlet end of the vacuum device and/or a purification treatment device for purifying the gas discharged from the evaporation chamber, The VOC, formaldehyde and HC recovery device includes a box and a refrigeration device installed in the box. The refrigeration device is mainly composed of a compressor, a condenser and an evaporator installed in the formaldehyde recovery device. The bottom of the box A discharge control valve for controlling the recovered liquid is installed, and the purification treatment device is activated carbon, an oxidant for removing formaldehyde, or a water tank.

Preferably, the quick intake device is composed of a quick intake pipe and a first vacuum valve connected to the quick intake pipe, one end of the quick intake pipe is connected to the evaporation chamber, and the first vacuum valve is controlled by Controller control or manual control or pneumatic control.

Preferably, the slow intake device is composed of a slow intake pipeline and a second vacuum valve connected to the slow intake pipeline, one end of the slow intake pipeline is connected to the evaporation chamber, and the second The vacuum valve is controlled by the controller or manually or pneumatically.

Preferably, an inlet filter device is installed at the inlet of the slow air inlet device and/or the fast air inlet pipe and/or the inlet valve, and the air inlet filter device is formaldehyde and/or VOC and/or HC and / Or dust filter.

Preferably, the evaporation chamber is equipped with a front sealed door and/or a rear sealed door, and the front sealed door and the rear sealed door have manual, electric or pneumatic structures, respectively.

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

The invention is provided with a purification filter device for purifying the gas inside the evaporation chamber, which can ensure that the pollutants drawn by the vacuum device are processed by the internal purification device, ensure that the gas inside the evaporation chamber is relatively clean, and prevent VOC, formaldehyde, and free gaseous substances generated by the test sample And/or contaminants such as hydrocarbons fill the evaporative interior and return to the product again when the evaporator returns to the pressure.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are For some of the embodiments of the present invention, those of ordinary skill in the art can obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic structural diagram of a VOC, formaldehyde, free gaseous substance and/or hydrocarbon accelerated evaporation chamber provided in the first embodiment of the present invention;

2 is a schematic structural diagram of a VOC, formaldehyde, free gaseous substance and/or hydrocarbon accelerated evaporation chamber provided in the second embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a VOC, formaldehyde, free gaseous substance and/or hydrocarbon accelerated evaporation chamber provided in the third embodiment of the present invention;

4 is a schematic structural diagram of a VOC, formaldehyde, free gaseous substance and/or hydrocarbon accelerated evaporation chamber provided by the fourth embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a VOC, formaldehyde, free gaseous substance and/or hydrocarbon accelerated evaporation chamber provided in the fifth embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a VOC, formaldehyde, free gaseous substance and/or hydrocarbon accelerated evaporation chamber provided by the sixth embodiment of the present invention.

detailed description

In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Example one

Please refer to Fig. 1, the first embodiment of the present invention provides a VOC, formaldehyde, free gaseous substance and/or hydrocarbon accelerated evaporation chamber, including a pressure-bearing evaporation chamber 1, a fast air inlet device 2, and a slow air inlet device 3. Inlet valve 9, controller 4, pressure sensor 5 for detecting the pressure in the evaporation chamber 1, at least one set of vacuum devices 6 for vacuuming the evaporation chamber 1, and at least one set of gas inside the evaporation chamber The purification filter device, the pressure sensor 5, the vacuum device 6, and the fast air inlet device 2 and/or the slow air inlet device 3 are respectively connected to the evaporation chamber 1, and the controller 4 is respectively connected to the pressure sensor 5, the vacuum device 6, and The fast air intake device 2 and/or the slow air intake device 3 are electrically connected.

The components of this embodiment will be described in detail below with reference to the drawings.

The evaporation chamber 1 is equipped with a front sealed door 10 and/or a rear sealed door 11, and the front sealed door 10 and the rear sealed door 11 are manual, electric or pneumatic structures.

The quick intake device 2 is composed of a quick intake pipe 21 and a first vacuum valve 22 connected to the quick intake pipe 21. One end of the quick intake pipe 21 is connected to the evaporation chamber 1, and the first vacuum valve 22 is connected to the controller 4 The electrical connection is controlled by the controller 4 to open or close. Of course, in other embodiments, the first vacuum valve 22 can also be opened or closed manually or pneumatically.

The slow intake device 3 is composed of a slow intake pipe 31 and a second vacuum valve 32 connected to the slow intake pipe 31. One end of the slow intake pipe 31 is connected to the evaporation chamber 1, and the second vacuum valve 32 It is electrically connected to the controller 4, and is controlled by the controller 4 to open or close. Of course, in other embodiments, the second vacuum valve 32 can also be manually or pneumatically controlled to open or close.

Among them, the fast air intake device 2 and/or the slow air intake device 3 can control the air intake speed of the evaporation chamber according to the performance of the product, so as to avoid large fluctuations in the pressure in the evaporation chamber and damage to the products in the evaporation chamber.

The intake valve 9 can also be opened or closed controlled by the controller 4, or opened or closed manually or pneumatically.

The controller 4 can be a computer, a PLC controller, a control cabinet and other common controllers currently on the market.

It should be noted here that the evaporation chamber may also be provided with only one or a combination of the fast air intake device 2, the slow air intake device 3, and the intake valve 9.

Preferably, the inlet of the slow air inlet device 3 and/or the fast air inlet pipe 21 and/or the inlet valve is equipped with an air inlet filter device 13, wherein the air inlet filter device 13 can preferably be set to formaldehyde and/or VOC And/or HC and/or dust filter.

The vacuum device 6 includes a check valve 61 and an ordinary vacuum pump or a vacuum pump 62 controlled by a frequency conversion. The check valve 61 and the vacuum pump 62 are connected to the exhaust pipe of the evaporation chamber 1, and the check valve 61 is located at the intake end of the vacuum pump 62 or at the vacuum pump At the outlet end of 62, the vacuum pump 62, the pressure sensor 5 and the controller 4 are electrically connected. Wherein, the controller 4 can obtain the internal pressure of the evaporation chamber collected by the pressure sensor 5, and then control the operation of one or more sets of vacuum pumps through a frequency converter or switch, thereby controlling the internal pressure of the evaporation chamber 1.

Of course, in other embodiments, the pressure sensor 5 can also be replaced by a pressure gauge.

The exhaust pipe of the evaporation chamber 1 can also be equipped with a VOC, formaldehyde and HC recovery device 7 at the outlet end of the vacuum device 6. The VOC, formaldehyde and HC recovery device 7 includes a box body 71 and a refrigerating device installed in the box body 71. The refrigeration device 72 is mainly composed of a compressor, a condenser, and an evaporator installed in the formaldehyde recovery device 7. The bottom of the box 71 is equipped with a drain control valve 73 for controlling the recovered liquid, which passes VOC, formaldehyde and The HC recovery device 7 can condense VOC, formaldehyde, or HC in the gas discharged from the evaporation chamber 1 into a liquid state for recycling, turning waste into treasure.

The exhaust pipe of the evaporation chamber 1 can also be equipped with a purification treatment device 63. The purification treatment device 63 can be separately installed on the outlet end of the vacuum device 6, or can be combined with the VOC, formaldehyde and HC recovery device 7 to install At the gas outlet of the VOC, formaldehyde and HC recovery device 7. The purification processing device 63 can perform purification processing on the gas discharged from the evaporation chamber 1. In specific implementation, the purification treatment device 63 may preferably be configured as activated carbon, an oxidant for removing formaldehyde, or a water tank.

The purification and filtration device includes an internal filter module 81 and a fan or air pump 82. The internal filter module 81 and the fan or air pump 82 are all located outside the evaporation chamber 1 and connected to the inside of the evaporation chamber 1 through an external circulation pipe 83. The external circulation pipe Both ends of 83 communicate with the inside of the evaporation chamber 1.

Among them, the internal filter module 81 may preferably be configured as a formaldehyde, VOC, HC and/or dust filter. The external circulation pipe 83 may be a pressure pipe.

Example two

Please refer to FIG. 2. The second embodiment of the present invention provides an accelerated evaporation chamber for VOC, formaldehyde, free gaseous substances and/or hydrocarbons. On the basis of the foregoing embodiment 1, an external circulation pipe 83 is connected to the evaporation chamber 1 Pipe valves 85 are also installed at the inlet and/or outlet.

Example three

Please refer to FIG. 3, the third embodiment of the present invention provides a VOC, formaldehyde, free gaseous substance and/or hydrocarbon accelerated evaporation chamber, the structure of which is mostly the same as that of the above-mentioned embodiment 1, and the similarities are no longer To repeat, the difference is: the purification filter device includes an internal filter module 81 and a fan or air pump 82. The internal filter module 81 and the fan or air pump 82 are all located inside the evaporation chamber 1, and the internal filter module 81 is installed in conjunction with the fan or air pump. The pump 82 is connected to the internal pipe 84.

Example four

Please refer to FIG. 4, the fourth embodiment of the present invention provides a VOC, formaldehyde, free gaseous substance and/or hydrocarbon accelerated evaporation chamber, the structure of which is mostly the same as that of the first embodiment, and the similarities are no longer To repeat, the difference is: the purification filter device includes an internal filter module 81 and a fan or air pump 82. The internal filter module 81 and the fan or air pump 82 are all located inside the evaporation chamber 1, and the internal filter module 81 is installed in the evaporation chamber 1. On one or more inner walls, such as the front, rear, left, and right upper and lower sides, a fan or air pump 82 is located in the sample test space enclosed by a plurality of internal filter modules 81.

Example five

Please refer to FIG. 5, the fifth embodiment of the present invention provides a VOC, formaldehyde, free gaseous substance and/or hydrocarbon accelerated evaporation chamber, the structure of which is mostly the same as that of the first embodiment, and the similarities are no longer To repeat, the difference is that the purification filter device includes an internal filter module 81 and a fan or air pump 82. The internal filter module 81 is located inside the evaporation chamber 1, and the internal filter module 81 is installed on one or more inner walls of the evaporation chamber 1. For example, the sample test space can be enclosed by multiple internal filter modules 81. The fan or air pump 82 is located outside the evaporation chamber 1. The fan or air pump 82 communicates with the interior of the evaporation chamber 1 through the external circulation pipe 83. The two ends of the outer circulation pipe 83 are connected to the inside of the evaporation chamber 1, and one end of the outer circulation pipe 83 extends into the inner area (unfiltered) of the inner filter module 81, and the other end of the outer circulation pipe 83 is located to the inside The outer area of the filter module 81 (filtered).

Example Six

Please refer to FIG. 6, the sixth embodiment of the present invention provides an accelerated evaporation chamber for VOC, formaldehyde, free gaseous substances and/or hydrocarbons. On the basis of the fifth embodiment above, the external circulation pipe 83 is connected to the evaporation chamber 1 Pipe valves 85 are also installed at the inlet and/or outlet.

When working, the sample is placed in the evaporation chamber, and the vacuum pump is evacuated to maintain a certain degree of vacuum and for a certain period of time, such as 20Kpa and 2 hours of pressure. The vacuum pump can suck out contaminants from the sample, and the gas in the evaporation chamber can be filtered by the internal filter module Purify, and then blow out clean air from a fan or air pump, which can ensure that the gas drawn by the vacuum device is relatively clean, and prevent the VOC, formaldehyde, free gaseous matter and/or hydrocarbons and other pollutants generated by the test sample from being excessively adsorbed on the pipeline and The vacuum device prevents pollutants from filling the evaporative interior and returning to the product again when the evaporator returns to pressure.

The above-mentioned embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above-mentioned embodiments, and any other changes, modifications, substitutions, combinations, etc. made without departing from the spirit and principle of the present invention Simplified, all should be equivalent replacement methods, and they are all included in the protection scope of the present invention.

Claims

An accelerated evaporation chamber for VOC, formaldehyde, free gaseous substances and/or hydrocarbons, characterized in that it comprises a pressure-bearing evaporation chamber (1), a fast air inlet device (2) and/or a slow air inlet device (3) And/or intake valve (9), a pressure sensor or pressure gauge (5) for detecting the pressure in the evaporation chamber (1), at least one set of vacuum devices (6) for vacuuming the evaporation chamber (1), And at least one set of purification filter devices for purifying the gas inside the evaporation chamber (1), the pressure sensor or pressure gauge (5), the vacuum device (6) and the fast air inlet device (2) and/or slow air inlet The device (3) and/or the intake valve (9) are respectively connected to the evaporation chamber (1), and the purification filter device is installed inside the evaporation chamber (1) and/or installed outside the evaporation chamber (1) and It communicates with the inside of the evaporation chamber (1).
A VOC, formaldehyde, free gaseous substance and/or hydrocarbon accelerated evaporation chamber according to claim 1, characterized in that: the purification filter device comprises an internal filter module (81) and a fan or air pump (82) The internal filter module (81) and the fan or air pump (82) are all located outside the evaporation chamber (1) and are connected to the inside of the evaporation chamber (1) through an external circulation pipe (83), the external circulation pipe Both ends of (83) communicate with the inside of the evaporation chamber (1).
A VOC, formaldehyde, free gaseous substance and/or hydrocarbon accelerated evaporation chamber according to claim 1, characterized in that: the purification filter device comprises an internal filter module (81) and a fan or air pump (82) , The internal filter module (81) and the fan or air pump (82) are all located inside the evaporation chamber (1), and the internal filter module (81) is installed in the internal pipe (82) connected to the fan or air pump (82) 84), or the internal filter module (81) is installed on one or more inner walls of the evaporation chamber (1).
A VOC, formaldehyde, free gaseous substance and/or hydrocarbon accelerated evaporation chamber according to claim 1, characterized in that: the purification filter device comprises an internal filter module (81) and a fan or air pump (82) The internal filter module (81) is located inside the evaporation chamber (1) and/or installed on one or more inner walls of the evaporation chamber (1), and the fan or air pump (82) is located in the evaporation chamber (1) Outside, the fan or air pump (82) is connected to the inside of the evaporation chamber (1) through an external circulation pipe (83), and both ends of the external circulation pipe (83) are connected to the inside of the evaporation chamber (1) through.
A VOC, formaldehyde, free gaseous substance and/or hydrocarbon accelerated evaporation chamber according to claim 2 or 3 or 4, characterized in that: the internal filter module (81) is set to formaldehyde and/or VOC and /Or HC and/or dust filter.
A VOC, formaldehyde, free gaseous substance and/or hydrocarbon accelerated evaporation chamber according to claim 2 or 4, characterized in that: the external circulation pipe (83) is a pressure-bearing pipe, and the external circulation pipe (83) Pipe valves (85) are installed at the inlet and/or outlet connected to the evaporation chamber (1).
A VOC, formaldehyde, free gaseous substance and/or hydrocarbon accelerated evaporation chamber according to claim 1, characterized in that: the vacuum device (6) comprises a check valve (61) and a vacuum pump or a variable frequency control The vacuum pump (62), the check valve (61) and the vacuum pump (62) are connected to the exhaust pipe of the evaporation chamber (1), and the check valve (61) is located at the intake end of the vacuum pump (62) or The air outlet end of the vacuum pump (62), the vacuum pump (62), the pressure sensor and the controller (4) are electrically connected.
A VOC, formaldehyde, free gaseous substance and/or hydrocarbon accelerated evaporation chamber according to claim 1, characterized in that: the exhaust pipe of the evaporation chamber (1) is also provided with a vacuum device ( 6) VOC, formaldehyde and HC recovery device (7) at the gas outlet end and/or purification treatment device (63) for purifying the gas discharged from the evaporation chamber (1), the VOC, formaldehyde and HC recovery device (7) Including a box (71) and a refrigeration device (72) installed in the box (71). The refrigeration device (72) is mainly composed of a compressor, a condenser, and a formaldehyde recovery device (7). The evaporator is composed of an evaporator, the bottom of the box body (71) is equipped with a discharge control valve (73) for controlling the recovered liquid, and the purification treatment device (63) is an activated carbon, an oxidant for removing formaldehyde or a water tank.
The accelerated evaporation chamber for VOC, formaldehyde, free gaseous substances and/or hydrocarbons according to claim 1, characterized in that: the fast air inlet device (2) is composed of a fast air inlet pipe (21) and a connection A first vacuum valve (22) on the quick air inlet pipe (21) is formed, one end of the quick air pipe (21) is connected to the evaporation chamber (1), and the first vacuum valve (22) is controlled by the controller ( 4) Control or manual control or pneumatic control; the slow intake device (3) is composed of a slow intake pipe (31) and a second vacuum valve (32) connected to the slow intake pipe (31) It is constituted that one end of the slow air intake pipe (31) is connected to the evaporation chamber (1), and the second vacuum valve (32) is controlled by a controller (4) or manually or pneumatically.
A VOC, formaldehyde, free gaseous substance and/or hydrocarbon accelerated evaporation chamber according to claim 1, characterized in that: the slow air inlet device (3) and/or the fast air inlet pipe (21) And/or the inlet of the intake valve (9) is equipped with an intake filter device (13), and the intake filter device (13) is a formaldehyde and/or VOC and/or HC and/or dust filter.