Indirect condensing device for VOCS waste gas treatment

Abstract

The utility model relates to the technical field of waste gas treatment, and discloses an indirect condensing device for VOCS waste gas treatment, which comprises a closed cooling cylinder and a closed transition cylinder fixedly sleeved in the closed cooling cylinder, and an annular abdicating space is formed between the closed cooling cylinder and the closed transition cylinder. A supporting rack is fixedly connected to the surface of the bottom of the closed cooling cylinder, and a spiral blade shaft is arranged in the closed transition cylinder in a sleeved mode. In order to solve the problem that frost blockage possibly exists between a closed cooling cylinder and a closed transition cylinder, the second servo motor can be started while a cooling medium is input, and the second servo motor is meshed with an inner gear ring arranged in a transmission mode through a corresponding transmission gear; and then the inner gear ring drives the arranged composite scraper assembly to circularly rotate between the closed cooling cylinder and the closed transition cylinder, and the inner wall of the closed cooling cylinder and the surface of the closed transition cylinder are scraped and cleaned through a supporting shaft and a scraper body.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste gas treatment technical field, concretely is a kind of indirect condensing device for VOCS waste gas treatment. BACKGROUND

[0002] At present, in the VOCS waste gas treatment process, indirect condensing device is one of important treatment devices, and its related technology has been disclosed, for example, the patent document with application No.202310323305.5, which discloses "the pressure cooling liquid discharged through impact hose impacts waste gas pipe to cause swing, which helps to improve the impact of coolant on waste gas pipe;And since the waste gas pipe includes multiple circular arc pipes, it is convenient to improve the contact area of coolant and waste gas pipe, improve the contact effect, and further improve the condensation effect of VOCs, when the waste gas pipe swings, it is convenient for the friction between the rolling ball and the inner wall of the circular arc pipe, and it is convenient to scrape the frost or frost block body on the wall of the circular arc pipe;At the same time, the connecting column between the rolling balls in the waste gas pipe swing process is convenient to disturb the middle part of the waste gas pipe to cause disturbance effect, which helps to hinder and slow down the flow rate of waste gas, improve the VOCs waste gas condensation phase change effect, and also helps to crush the frost or frost block body in the middle part of the waste gas pipe, thereby avoiding the blockage of the waste gas pipe".

[0003] However, from the actual production experience, the swing of waste gas pipe can realize the above technical effect in theory, but in reality, due to the limitation of the space of the device itself, the swing amplitude of the waste gas pipe will not be too large, and the accumulated kinetic energy may not meet the cleaning frost or frost block body, secondly, the continuous impact of waste pipe will affect the actual processing site due to noise problem. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides an indirect condensing device for VOCS waste gas treatment, which solves the problems raised in the above background art.

[0005] The utility model provides the following technical scheme: an indirect condensing device for VOCS waste gas treatment, comprising a closed cooling cylinder, a closed transition cylinder fixedly sleeved in the closed cooling cylinder, an annular space formed between the closed cooling cylinder and the closed transition cylinder, a support frame fixedly connected to the surface of the bottom of the closed cooling cylinder, a spiral blade shaft sleeved in the closed transition cylinder, and a first servo motor drivingly connected to one end of the spiral blade shaft;

[0006] A composite scraper assembly and a meshing output assembly are sleeved in one end of the closed cooling cylinder, the output structure of the meshing output assembly is drivingly connected to one side of the composite scraper assembly, the composite scraper assembly is movably sleeved in the annular space under the driving of the meshing output assembly, the top of the composite scraper assembly is in contact with the inner wall of the closed cooling cylinder, and the bottom of the composite scraper assembly is in contact with the surface of the closed transition cylinder.

[0007] One end of the closed transition cylinder is fixedly sleeved with a waste gas inlet pipe, and the other end of the closed transition cylinder is fixedly sleeved with a waste gas outlet pipe and a condensation guide valve pipe.

[0008] The two ends of the spiral blade shaft are respectively sleeved in the side walls of the two ends of the closed transition cylinder, and a first shaft sealing ring is arranged between the two ends of the spiral blade shaft and the side walls of the corresponding ends of the closed transition cylinder, so that the sealing effect is improved.

[0009] The output end of the first servo motor is in transmission connection with the end of one end of the spiral blade shaft, and a first support frame is fixedly installed between the surface of the shell of the first servo motor and the end face of one end of the closed transition cylinder.

[0010] The engaging output assembly includes a transmission gear, an internal gear ring and a second servo motor.

[0011] The two ends of the spiral blade shaft are respectively sleeved in the side walls of the two ends of the closed transition cylinder, and a first shaft sealing ring is arranged between the two ends of the spiral blade shaft and the side walls of the corresponding ends of the closed transition cylinder, so that the sealing effect is improved.

[0012] The bottom of the scraper body is in contact with the surface of the closed transition cylinder, and the elastic guide member is composed of a T-shaped rod and a buffer spring.

[0013] The number of the elastic guide members is not less than two and is equally distributed between the top of the scraper body and the bottom of the U-shaped plate, so as to ensure the pressure buffering effect.

[0014] The selected support rack bottom is provided with mounting grooves on both sides, facilitating the fixation of the subsequent overall device, the closed cooling cylinder is made of temperature insulation material, and a controller is installed at the front end of the closed cooling cylinder.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1、The utility model discloses a closed cooling cylinder and closed transition cylinder between possible frost blockage problems, can start the second servo motor of setting while inputting cooling medium, by the second servo motor through corresponding transmission gear meshing transmission setting the internal gear ring, then make internal gear ring drive the composite scraper assembly of setting between closed cooling cylinder and closed transition cylinder circular rotation, utilize support shaft and scraper body respectively with the inner wall of closed cooling cylinder and the surface of closed transition cylinder and scrape and clean.

[0017] 2、The utility model discloses a first servo motor transmission spiral blade shaft, make spiral blade shaft spiral conveying condensate in closed transition cylinder, accelerate the collection speed through condensation guide valve pipe, reduce the idle time of overall device, promote use efficiency, at the same time, spiral blade shaft reciprocating and the inner wall of closed transition cylinder contact, can synchronous automatic cleaning on the material of closed transition cylinder inner wall attachment. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the sectional view schematic diagram of the utility model structure;

[0019] Figure 2 It is the front view schematic diagram of the utility model structure;

[0020] Figure 3 It is the rear view schematic diagram of the utility model structure;

[0021] Figure 4 It is the enlarged schematic diagram of the utility model structure closed transition cylinder;

[0022] Figure 5 It is the partial sectional view schematic diagram of the utility model structure closed transition cylinder;

[0023] Figure 6 It is the utility model structure Figure 5 Enlarged schematic diagram of A place in the utility model structure.

[0024] In the figure: 1, closed cooling cylinder; 2, closed transition cylinder; 3, support frame; 4, cooling medium inlet pipe; 5, cooling medium outlet pipe; 6, exhaust gas inlet pipe; 7, exhaust gas outlet pipe; 8, condensation guide valve pipe; 9, spiral blade shaft; 10, first servo motor; 11, composite scraper assembly; 111, support shaft; 112, U-shaped plate; 113, scraper body; 114, elastic guide part; 12, meshing output assembly; 121, transmission gear; 122, internal gear ring; 123, second servo motor. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] Please refer to Figures 1-6 An indirect condensing device for VOCs exhaust gas treatment, comprising a closed cooling cylinder 1, a closed transition cylinder 2 fixedly sleeved in the closed cooling cylinder 1, an annular space formed between the closed cooling cylinder 1 and the closed transition cylinder 2, a support frame 3 fixedly connected to the surface of the bottom of the closed cooling cylinder 1, a spiral blade shaft 9 sleeved in the closed transition cylinder 2, end heads of the two ends of the spiral blade shaft 9 respectively sleeved in the side walls of the two ends of the closed transition cylinder 2, a first shaft sealing ring nested between the sleeving part between the end head of the spiral blade shaft 9 and the corresponding end head side wall of the closed transition cylinder 2 to improve the sealing effect, and the two end heads of the spiral blade shaft 9 respectively extended to the outside of the two ends of the closed transition cylinder 2 and both sleeved with bearing seats through bearings, the two bearing seats respectively fixedly installed on the end faces of the two ends of the closed transition cylinder 2, a first servo motor 10 drivingly connected to one end of the spiral blade shaft 9, the output end of the first servo motor 10 drivingly connected to the end head of one end of the spiral blade shaft 9, and a first support frame fixedly installed between the surface of the shell of the first servo motor 10 and the end face of one end of the closed transition cylinder 2;

[0027] A composite scraper assembly 11 and a meshing output assembly 12 are sleeved in one end of the closed cooling cylinder 1, the output structure of the meshing output assembly 12 drivingly connected to one side of the composite scraper assembly 11, and the composite scraper assembly 11 movably sleeved in the annular space under the driving of the meshing output assembly 12, the top of the composite scraper assembly 11 in abutting contact with the inner wall of the closed cooling cylinder 1, and the bottom of the composite scraper assembly 11 in abutting contact with the surface of the closed transition cylinder 2.

[0028] The meshing output assembly 12 comprises a transmission gear 121, an internal gear ring 122, a second servo motor 123, the internal gear ring 122 is sleeved on the inner side of one end of the closed cooling cylinder 1 through a bearing, the transmission gear 121 is movably sleeved in the closed cooling cylinder 1 and is in meshing connection with the inner side of the internal gear ring 122, a second support frame is fixedly installed between the surface of the shell of the second servo motor 123 and the end face of one end of the closed cooling cylinder 1, the output end of the second servo motor 123 penetrates the end face of one end of the closed cooling cylinder 1 and is in transmission connection with the middle part of the transmission gear 121, a second shaft sealing ring is nested and installed at the sleeving position of the output end of the second servo motor 123 and the end face of one end of the closed cooling cylinder 1, the composite scraper assembly 11 comprises a support shaft 111, a U-shaped plate 112, a scraper body 113 and an elastic guide part 114, one end of the support shaft 111 is fixedly connected with one side of the internal gear ring 122 serving as the output structure of the meshing output assembly 12, and the surface of the support shaft 111 is in abutting contact with the inner wall of the closed cooling cylinder 1, the two ends of the U-shaped plate 112 are fixedly connected to the bottom surfaces of the two ends of the support shaft 111 respectively;

[0029] the bottom of the scraper body 113 is in abutting contact with the surface of the closed transition cylinder 2, the elastic guide part 114 is composed of a T-shaped rod and a buffer spring, one end of the T-shaped rod penetrates the bottom structure of the U-shaped plate 112 and is fixedly connected to the top of the scraper body 113, the two ends of the buffer spring are fixedly connected to the surface of the top of the scraper body 113 and the surface of the bottom of the U-shaped plate 112 respectively, the number of the elastic guide parts 114 is not less than two and is equally distributed between the top of the scraper body 113 and the bottom of the U-shaped plate 112, so as to ensure the pressure buffering effect;

[0030] one end of the closed transition cylinder 2 is fixedly sleeved with a waste gas inlet pipe 6, the other end of the closed transition cylinder 2 is fixedly sleeved with a waste gas outlet pipe 7 and a condensation guide valve pipe 8, the rear ends of the two ends of the closed cooling cylinder 1 are fixedly sleeved with a cooling medium inlet pipe 4 and a cooling medium outlet pipe 5 respectively, installation grooves are formed in the two sides of the bottom of the support rack 3, so as to facilitate the fixation of the subsequent overall device, the closed cooling cylinder 1 is made of temperature insulation material, and a controller is installed at the front end of the closed cooling cylinder 1.

[0031] Working principle:

[0032] Embodiment one

[0033] The waste gas is added into the inside of the closed transition cylinder 2 through the waste gas inlet pipe 6, and due to the existence of the spiral blade shaft 9, the space in the closed transition cylinder 2 is divided into a spiral shape, so that the waste gas can stay in the closed transition cylinder 2 for a sufficient time, at the same time, the cooling medium enters into the inside of the closed cooling cylinder 1 through the cooling medium inlet pipe 4, and then the waste gas in the closed transition cylinder 2 is subjected to condensation treatment;

[0034] Subsequently, the condensed material in the exhaust gas is temporarily stored in the inside of the closed transition cylinder 2, and when the amount of the condensed material reaches a certain amount, the delivery of the exhaust gas is temporarily stopped, and the condensed material is collected through the condensed delivery valve pipe 8, while the remaining exhaust gas in the condensing process is discharged through the exhaust outlet pipe 7 to the next process.

[0035] The cooling medium is discharged through the cooling medium outlet pipe 5 after use, and in order to avoid frost blockage between the closed cooling cylinder 1 and the closed transition cylinder 2, the second servo motor 123 can be started while the cooling medium is being input, and the second servo motor 123 drives the inner gear ring 122 through the transmission gear 121, and then the inner gear ring 122 drives the composite scraper assembly 11 to rotate circularly between the closed cooling cylinder 1 and the closed transition cylinder 2, and the support shaft 111 and the scraper body 113 are used to scrape and clean the inner wall of the closed cooling cylinder 1 and the surface of the closed transition cylinder 2, respectively.

[0036] Example Two

[0037] For the condensation treatment of the exhaust gas, the steps in Example One above are followed, and when the collection of the condensed material in the closed transition cylinder 2 needs to be accelerated, the collection speed through the condensed delivery valve pipe 8 is accelerated, and the first servo motor 10 can be started, and the output end of the first servo motor 10 drives the spiral blade shaft 9 to spiral deliver the condensed material in the closed transition cylinder 2, and at the same time, the spiral blade shaft 9 reciprocally contacts the inner wall of the closed transition cylinder 2 to automatically clean the material attached to the inner wall of the closed transition cylinder 2 synchronously.

[0038] Example Three

[0039] During the subsequent internal cleaning process, the first servo motor 10 is started, the output end of the first servo motor 10 drives the spiral blade shaft 9 to spiral deliver the cleaning wastewater in the closed transition cylinder 2, and at the same time, the spiral blade shaft 9 reciprocally contacts the inner wall of the closed transition cylinder 2 to automatically clean the material attached to the inner wall of the closed transition cylinder 2 synchronously, and the second servo motor 123 is started, and the second servo motor 123 drives the inner gear ring 122 through the transmission gear 121, and then the inner gear ring 122 drives the composite scraper assembly 11 to rotate circularly between the closed cooling cylinder 1 and the closed transition cylinder 2, and the support shaft 111 and the scraper body 113 are used to scrape and clean the inner wall of the closed cooling cylinder 1 and the surface of the closed transition cylinder 2, respectively.

[0040] It is to be noted that, in the present text, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. In the drawings of the present application, the filling patterns are only for distinguishing layers and do not have any other limitations.

[0041] While the embodiments of the present application have been shown and described, it is to be understood that the embodiments can be varied, modified, substituted and changed by those skilled in the art without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An indirect condensing device for VOCs exhaust gas treatment, comprising a closed cooling cylinder (1) and a closed transition cylinder (2) fixedly sleeved inside the closed cooling cylinder (1), characterized in that: An annular space is formed between the closed cooling cylinder (1) and the closed transition cylinder (2), a support frame (3) is fixedly connected to the surface of the bottom of the closed cooling cylinder (1), and a spiral blade shaft (9) is sleeved in the closed transition cylinder (2). A composite scraper assembly (11) and an engaging output assembly (12) are sleeved in one end of the closed cooling cylinder (1), the output structure of the engaging output assembly (12) is drivingly connected to one side of the composite scraper assembly (11), the composite scraper assembly (11) is movably sleeved in the annular space under the driving of the engaging output assembly (12), the top of the composite scraper assembly (11) is in abutting contact with the inner wall of the closed cooling cylinder (1), and the bottom of the composite scraper assembly (11) is in abutting contact with the surface of the closed transition cylinder (2). A waste gas inlet pipe (6) is fixedly sleeved in one end of the closed transition cylinder (2), a waste gas outlet pipe (7) and a condensation guide valve pipe (8) are fixedly sleeved in the other end of the closed transition cylinder (2), and a cooling medium inlet pipe (4) and a cooling medium outlet pipe (5) are fixedly sleeved in the rear end of the closed cooling cylinder (1).

2. The indirect condensing device for VOCs exhaust gas treatment according to claim 1, characterized in that: The end heads of the two ends of the spiral blade shaft (9) are sleeved in the side walls of the two ends of the closed transition cylinder (2), a first shaft sealing ring is nested between the sleeving positions between the end heads of the spiral blade shaft (9) and the corresponding end head side walls of the closed transition cylinder (2), and the end heads of the two ends of the spiral blade shaft (9) extend to the outside of the two ends of the closed transition cylinder (2) and are sleeved with bearing seats through bearings.

3. The indirect condensing device for VOCs exhaust treatment according to claim 1, characterized in that: The output end of the first servo motor (10) is drivingly connected to the end head of one end of the spiral blade shaft (9), and a first support frame is fixedly installed between the surface of the shell of the first servo motor (10) and the end face of one end of the closed transition cylinder (2).

4. The indirect condensing device for VOCs exhaust treatment according to claim 1, characterized in that: The engaging output assembly (12) comprises a transmission gear (121), an internal gear ring (122) and a second servo motor (123), the internal gear ring (122) is sleeved on the inside of one end of the closed cooling cylinder (1) through a bearing, the transmission gear (121) is movably sleeved in the inside of the closed cooling cylinder (1) and is in meshing connection with the inside of the internal gear ring (122), a second support frame is fixedly installed between the surface of the shell of the second servo motor (123) and the end face of one end of the closed cooling cylinder (1), the output end of the second servo motor (123) penetrates through the end face of one end of the closed cooling cylinder (1) and is drivingly connected to the middle part of the transmission gear (121), and a second shaft sealing ring is nested and installed at the sleeving position between the output end of the second servo motor (123) and the end face of one end of the closed cooling cylinder (1).

5. The indirect condensing device for VOCs exhaust gas treatment according to claim 4, characterized in that: The composite scraper assembly (11) comprises a support shaft (111), a U-shaped plate (112), a scraper body (113) and an elastic guide component (114), one end of the support shaft (111) is fixedly connected with one side surface of an internal gear ring (122) serving as an output structure of the meshing output assembly (12), and the surface of the support shaft (111) is in close contact with the inner wall of the closed cooling cylinder (1), and the two ends of the U-shaped plate (112) are fixedly connected on the bottom surfaces of the two ends of the support shaft (111) respectively.

6. The indirect condensing device for VOCs exhaust gas treatment according to claim 5, characterized in that: The bottom of the scraper body (113) is in close contact with the surface of the closed transition cylinder (2), the elastic guide component (114) is composed of a T-shaped rod and a buffer spring, one end of the T-shaped rod penetrates through the bottom structure of the U-shaped plate (112) and is fixedly connected on the top of the scraper body (113), and the two ends of the buffer spring are fixedly connected on the surface of the top of the scraper body (113) and the surface of the bottom of the U-shaped plate (112) respectively.

7. The indirect condensing device for VOCs exhaust gas treatment according to claim 5, characterized in that: The number of the elastic guide components (114) is not less than two and is equidistantly distributed between the top of the scraper body (113) and the bottom of the U-shaped plate (112).

8. The indirect condensing device for VOCs exhaust treatment according to claim 1, characterized in that: The bottom of the support rack (3) is provided with mounting grooves on both sides, the closed cooling cylinder (1) is made of temperature insulation material, and a controller is mounted on the front end of the closed cooling cylinder (1).

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