RTO fresh air supplementing and filtering equipment

Abstract

The utility model discloses RTO fresh air supplement filtering equipment which at least comprises a fan and a filter body, and the fan and the filter body are connected through a fresh air supplement pipeline. The filter body comprises a filter shell and a filter rear end cover, a filtering device is arranged in the filter body, and the filtering device is positioned and mounted on the rear end cover. According to the RTO fresh air supplementing filtering equipment, the filtering device is arranged on the rear end cover, when the filtering equipment needs to be replaced or maintained, only the rear end cover needs to be opened and pulled out backwards, the filtering equipment can be pulled out of the filter body at the same time for replacement or maintenance, the replacement time of the filtering equipment is shortened, operation is convenient, and the cost is low. The safety of an operator is guaranteed; operation can be carried out without turning off the fan, and time and energy consumed when the fan is turned on and turned off are reduced.

Description

Technical Field

[0001] The utility model relates to RTO fresh air supplement filtering equipment, belonging to the technical field of organic waste gas treatment devices. Background Art

[0002] RTO (Regenerative Thermal Oxidizer, RTO for short), a regenerative thermal oxidizer. Its principle is to oxidize organic matter (VOCs) in the exhaust gas into corresponding carbon dioxide and water at high temperature, thereby purifying the exhaust gas and recovering the heat released when the exhaust gas is decomposed. The three-chamber RTO exhaust gas decomposition efficiency reaches more than 99%, and the heat recovery efficiency reaches more than 95%. The main structure of RTO consists of a combustion chamber, a regenerative chamber and a switching valve. According to the actual needs of the customer, different heat recovery methods and switching valve methods are selected. RTO is a high-efficiency organic waste gas treatment equipment. Compared with traditional catalytic combustion and direct-fired thermal oxidizers (TO), it has the characteristics of high thermal efficiency (≥95%), low operating cost, and the ability to handle large air volume and low-concentration exhaust gas. When the concentration is slightly higher, secondary waste heat recovery can also be performed, which greatly reduces the production and operation costs.

[0003] During the operation of RTO, in order to ensure that the concentration of organic waste gas inside the RTO remains within a safe range, it is necessary to open a fresh air inlet. In order to ensure the cleanliness of the incoming air, it is also necessary to add a filter. The replacement of the fresh air filter is the main work content of the hot air furnace maintenance.

[0004] Traditional filters are made by perforating the filter cloth around, pressing it with a pad and flange, and then fixing it with bolts around. The filter cloth is installed on the pipe of the hot air furnace to replenish the fresh air outlet. When the filter needs to be replaced, all the bolts around it need to be removed, and then the filter cloth needs to be replaced and reinstalled. The original steps for replacing the filter cotton are cumbersome and difficult to operate when the fan is started. Unnecessary safety problems occur due to improper operation. Utility Model Content

[0005] The main technical problem solved by the utility model is to provide an RTO fresh air supplement filtering device, which can reduce the replacement time of the filter screen, ensure the safety of the operator, and save energy.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: to provide an RTO fresh air filter device, which at least includes a fan and a filter body, and the fan and the filter body are connected through a fresh air duct; the filter body includes a filter housing and a filter rear end cover, and a filter device is arranged in the filter body, and the filter device is positioned and installed on the rear end cover. The RTO fresh air filter device provided by this solution sets the filter device on the rear end cover. When the filter device needs to be replaced or repaired, it only needs to open the rear end cover and pull it out, and the filter device can be pulled out from the filter body at the same time for replacement or repair, which reduces the time for replacing the filter device, is convenient to operate, and ensures the safety of the operator; the fan can be operated without turning off the fan, which reduces the time and energy consumed when the fan is turned on and off. The filter device and the fan are mainly used to prevent the particles and small flying insects that may exist in the air from being rejected outside the filter, and the outdoor air is sent to the RTO for blowing through the fresh air filter device.

[0007] Preferably, the filtering device comprises a filter net and a filter layer, and the filter layer is wrapped around the outside of the filter net.

[0008] Preferably, the filter screen is a metal filter screen, the filter layer is filter cotton, and the filter cotton is wrapped around the outer periphery of the metal filter screen.

[0009] Preferably, the metal filter is fixedly mounted on the rear end cover.

[0010] Preferably, the rear end cover is clamped on the filter housing by means of a flange.

[0011] Preferably, an air passage is further provided inside the filter body, and the air passage is arranged inside the filter device.

[0012] Preferably, the air passage is formed by connecting a plurality of supporting members and fixing members at both ends, and the plurality of supporting members do not contact each other.

[0013] Preferably, the filter device is welded to the rear end cover.

[0014] Preferably, a plurality of protrusions are provided at one end of the filter device, and a plurality of slots are provided on the rear end cover, and the protrusions can be fixedly connected with the slots.

[0015] The beneficial effects of the utility model are as follows: the RTO fresh air filter device of the utility model sets the filter device on the rear end cover. When the filter device needs to be replaced or repaired, it is only necessary to open the rear end cover and pull it out, and the filter device can be pulled out from the filter body at the same time for replacement or repair, which reduces the time for replacing the filter device, is easy to operate, and ensures the safety of the operator; it can be operated without turning off the fan, which reduces the time and energy consumed when the fan is turned on and off. The filter device and the fan mainly prevent the particles and small flying insects that may exist in the air from being rejected outside the filter, and send the outdoor air into the RTO for purging through the fresh air filter device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0017] Figure 1 This is a structural schematic diagram of an embodiment of the RTO fresh air supplement filtering device of the utility model;

[0018] Figure 2 The utility model is a schematic diagram of the structure of the filter device and the rear end cover in the RTO fresh air filter device.

[0019] Figure numerals: 1-filter body, 2-filter housing, 3-rear end cover, 301-slot, 4-filter device, 401-protrusion, 5-metal filter, 6-air channel, 601-support, 602-fixing part. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1The present embodiment provides an RTO fresh air filtering device, which at least includes a fan and a filter body 1, wherein the fan and the filter body 1 are connected via a fresh air duct; the filter body 1 includes a filter housing 2 and a filter rear end cover 3, and a filter device 4 is provided in the filter body 1, and the filter device 4 is positioned and mounted on the rear end cover 3, and the rear end cover 3 is connected to the filter housing 2 by a flange. In the present embodiment, the filter device 4 is welded to the rear end cover 3, and the filter device 4 and the rear end cover are welded into a whole, which has a simple structure, increases the structural stability of the device, and improves the service life of the device. In a preferred embodiment, Figure 2 As shown, a plurality of protrusions 401 are provided at one end of the filter device 4, and a plurality of card slots 301 are provided on the rear end cover 3, and the protrusions 401 can be fixedly connected with the card slots 301; the rear end cover 3 and the filter device 4 are connected by card connection, which is convenient for disassembly and maintenance of the filter device 4, and the operation is convenient. At the same time, when the rear end cover 3 is pulled backward, the filter device 4 can be easily pulled out, and the filter device can be replaced and maintained without stopping the entire RTO fresh air supply equipment, which saves time and energy and ensures the safety of the staff during operation.

[0022] In this embodiment, the filter device 4 is a filter screen and a filter layer, and the filter layer is wrapped outside the filter screen; through the double-layer filtering effect of the filter screen and the filter layer, particulate matter and small flying insects that may exist in the air are rejected outside the filter, and the filtering effect is good. Specifically, the filter screen is a metal filter screen 5, and the filter layer is filter cotton, and the filter cotton is wrapped around the outer periphery of the metal filter screen 5. The filter cotton can be wrapped around the outer periphery of the metal filter screen 5 in one or more layers as needed to achieve a better filtering effect.

[0023] In order to facilitate the replacement of the filter cotton, the metal filter 5 is fixedly installed on the rear cover 3. When the rear cover 3 is pulled backward, the metal filter 5 and the filter cotton wrapped around the outer periphery of the metal filter 5 can be taken out together. The machine needs to be turned on and off once, which takes a lot of time and energy. Therefore, this solution can replace the filter cotton without stopping the machine, which is convenient for replacement and saves time and energy.

[0024] In a preferred embodiment, in order to facilitate the delivery of filtered gas to the RTO for purging, an air channel 6 is further provided inside the filter body 1. The air channel 6 is provided inside the filter device 4. The air channel plays a role in positioning the filter device to prevent the filter device from being skewed during installation, thereby affecting the filtering effect of the fresh air filtering device. Specifically, the air channel 6 is formed by connecting a plurality of support members 601 and a fixing member 602. The plurality of support members 601 do not contact each other, so that the filtered gas can be easily circulated.

Claims

1. An RTO fresh air filtering device, characterized in that: It at least includes a fan and a filter body, and the fan and the filter body are connected through a fresh air duct; the filter body includes a filter housing and a filter rear end cover, and a filter device is arranged in the filter body, and the filter device is positioned and installed on the rear end cover.

2. The RTO fresh air filtration device according to claim 1, characterized in that: The filter device comprises a filter net and a filter layer, and the filter layer is wrapped outside the filter net.

3. The RTO fresh air filtration device according to claim 2, characterized in that: The filter screen is a metal filter screen, the filter layer is filter cotton, and the filter cotton is wrapped around the outer periphery of the metal filter screen.

4. The RTO fresh air filtration device according to claim 3, characterized in that: The metal filter is fixedly mounted on the rear end cover.

5. The RTO fresh air filtration device according to any one of claims 1 to 4, characterized in that: The rear end cover is clamped on the filter housing through a flange.

6. The RTO fresh air filtration device according to claim 5, characterized in that: An air passage is also provided inside the filter body, and the air passage is arranged inside the filter device.

7. The RTO fresh air filtration device according to claim 6, characterized in that: The air channel is formed by connecting a plurality of supporting members and fixing members at both ends, and the plurality of supporting members do not contact each other.

8. The RTO fresh air filtration device according to claim 1, characterized in that: The filter device is welded on the rear end cover.

9. The RTO fresh air filtration device according to claim 1, characterized in that: A plurality of protrusions are arranged at one end of the filter device, and a plurality of slots are arranged on the rear end cover, and the protrusions can be fixedly connected with the slots.

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