Volatile deacidification liquid condensation recovery device

Abstract

The utility model relates to the technical field of recovery devices, in particular to a volatile deacidification liquid condensation recovery device which comprises a tank body, an observation window fixedly connected to the outer side of the tank body, a deacidification liquid recovery port fixedly connected to the inner side of the bottom end of the tank body, an air outlet fixedly connected to the rear end of the deacidification liquid recovery port, and an air inlet fixedly connected to the front end of the tank body. The inner side of the tank body is fixedly connected with a condensing coil through a support, the inner side of the tank body is fixedly connected with an in-bin partition plate, the inner side of the in-bin partition plate is fixedly connected with a diffusion pipe, the front end of the in-bin partition plate is fixedly connected with a flow guide pipe through a convex block, and the rear end of the in-bin partition plate is fixedly connected with a flow guide plate through a connecting frame. According to the device, through a three-stage cold trap structure and a diversion diffusion design, the condensation recovery efficiency of volatile deacidification liquid steam is remarkably improved, the loss and the cost of the deacidification liquid are reduced, and meanwhile, the high efficiency and the stability of the condensation process are ensured.

Description

Technical Field

[0001] This utility model relates to the field of recycling device technology, specifically a volatile deacidification liquid condensation and recovery device. Background Technology

[0002] In the field of paper document preservation, deacidification is one of the important means to extend the life of paper documents. At present, the method of deacidification by immersion in organic suspension-type anhydrous phase deacidification solution is widely regarded as the preferred method for deacidification of paper documents due to its many advantages.

[0003] However, this method faces the challenge of cost control when applied on a large scale. In the cost structure of the anhydrous phase immersion deacidification method, the cost of the deacidification liquid accounts for a large proportion. Since the anhydrous phase deacidification liquid is volatile, it will be converted from liquid to gaseous state in large quantities during use. If this part of the gaseous deacidification liquid cannot be effectively recovered, the loss of deacidification liquid will increase significantly, making it difficult to control costs. Therefore, a volatile deacidification liquid condensation and recovery device is proposed to address the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a volatile deacidification liquid condensation and recovery device to solve the problem that, since the anhydrous deacidification liquid is volatile, a large amount of it will be converted from liquid to gaseous state during use. If this gaseous deacidification liquid cannot be effectively recovered, the loss of deacidification liquid will increase significantly, making it difficult to control costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A volatile deacidification liquid condensation and recovery device includes a tank. An observation window is fixedly connected to the outer side of the tank. A deacidification liquid recovery port is fixedly connected to the inner side of the bottom of the tank. An air outlet is fixedly connected to the rear end of the deacidification liquid recovery port. An air inlet is fixedly connected to the front end of the tank. A condensation coil is fixedly connected to the inner side of the tank via a bracket. An internal partition plate is fixedly connected to the inner side of the tank. A diffuser is fixedly connected to the inner side of the internal partition plate. A guide pipe is fixedly connected to the front end of the internal partition plate via a protrusion. A guide plate is fixedly connected to the rear end of the internal partition plate via a connecting frame.

[0007] As a further optimization of this utility model, the inner side of the tank is hollow, a through hole is provided on the inner side of the tank near the observation window, the inner side of the observation window is hollow, and the tank is connected to the observation window through the through hole.

[0008] As a further optimization of this utility model, the tank body has a through hole on the inner side near the deacidification liquid recovery port, the inner side of the deacidification liquid recovery port is hollow, an electromagnetic valve is installed inside the deacidification liquid recovery port, and the inner side of the tank body is connected to the inner side of the deacidification liquid recovery port through the through hole.

[0009] As a further optimization of this utility model, the following features are provided: multiple partition plates are provided inside the tank, and three cold trap chambers are provided inside the tank through the partition plates, with condensing coils installed in each of the three cold trap chambers inside the tank.

[0010] As a further optimization of this utility model, the inner side of the tank near the air inlet and air outlet is provided with through holes, the inner side of the air outlet and air inlet is hollow, and the inner side of the air inlet, the inner side of the tank body and the inner side of the air outlet are all connected.

[0011] As a further optimization of this utility model, the number of the guide plates is multiple, the guide plates are installed on the inner side of the tank near the air inlet, and a gap is provided between the guide plates and the inner side of the tank.

[0012] As a further optimization of this utility model, the inner side of the guide tube is hollow, the rear end of the guide tube is a through structure, the inner side of the diffuser tube is hollow, a gap is provided between the rear end of the guide tube and the front end of the internal partition plate, and a gap is provided between the front end of the guide plate and the rear end of the internal partition plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In this invention, a volatile deacidification liquid condensation and recovery device is designed by setting up a tank, condensing coil, guide pipe, diffuser, internal partition plate, and guide plate. The recovered product is liquid deacidification liquid. Due to the design of a three-stage cold trap, three-compartment partition, and guide diffuser structure inside the condensation recovery chamber, the airflow can fully contact and exchange heat with the condensing coil inside the condensation chamber, thereby increasing the effective heat exchange area of ​​the condensing coil and making full use of the cooling capacity of the condensing coil in the cold trap to improve the condensation and recovery efficiency of volatile deacidification liquid vapor. It also has the advantages of simple structure, convenient installation, and stable operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the tank body of this utility model;

[0017] Figure 3 This is a schematic diagram of the flow guide tube structure of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the internal partition plate of this utility model.

[0019] In the diagram: 1. Tank body; 2. Observation window; 3. Deacidification liquid recovery port; 4. Gas outlet; 5. Gas inlet; 6. Condensation coil; 7. Guide pipe; 8. Diffuser; 9. Internal partition plate; 10. Guide plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0022] Please see Figure 1-4 This utility model provides a technical solution:

[0023] A volatile deacidification liquid condensation and recovery device includes a tank 1, an observation window 2 fixedly connected to the outside of the tank 1, a deacidification liquid recovery port 3 fixedly connected to the inside of the bottom end of the tank 1, an outlet 4 fixedly connected to the rear end of the deacidification liquid recovery port 3, an inlet 5 fixedly connected to the front end of the tank 1, a condensation coil 6 fixedly connected to the inside of the tank 1 via a bracket, an internal partition plate 9 fixedly connected to the inside of the tank 1, a diffuser 8 fixedly connected to the inside of the internal partition plate 9, a guide pipe 7 fixedly connected to the front end of the internal partition plate 9 via a protrusion, and a guide plate 10 fixedly connected to the rear end of the internal partition plate 9 via a connecting frame.

[0024] As a further implementation of this scheme, the inner side of the tank 1 is hollow, and a through hole is opened on the inner side of the tank 1 near the observation window 2. The inner side of the observation window 2 is hollow, and the tank 1 is connected to the observation window 2 through the through hole. The tank 1 is the main structure of the entire condensation recovery device. In order to avoid the loss of cooling capacity of the cold trap, the outer surface of the tank 1 is covered with heat insulation material. The observation window 2 is located on the front of the tank 1 and is used to observe the gas condensation state of each cold trap chamber inside.

[0025] As a further implementation of this scheme, a through hole is provided on the inner side of the tank 1 near the deacidification liquid recovery port 3. The inner side of the deacidification liquid recovery port 3 is hollow, and a solenoid valve is installed inside the deacidification liquid recovery port 3. The inner side of the tank 1 is connected to the inner side of the deacidification liquid recovery port 3 through the through hole. Multiple partition plates 9 are provided inside the tank 1, and three cold trap chambers are set inside the tank 1 through the partition plates 9. Each of the three cold trap chambers inside the tank 1 is equipped with a condensing coil 6. The deacidification liquid recovery port 3 is located at the bottom of the tank 1. The deacidification liquid that has been condensed and liquefied flows into the deacidification liquid recovery and storage container through the deacidification liquid recovery port 3. The condenser coil 6 refrigerant interface is the pipeline interface connecting the condenser coil 6 inside the cold trap to the auxiliary refrigeration unit to form a refrigerant circulation system. The internal structure of the tank 1 has three cold trap chambers arranged in sequence according to the gas flow direction. Each cold trap chamber contains a condenser coil 6, a guide pipe 7, an internal partition plate 9, and a temperature sensor. The function of the condenser coil 6 is to condense and liquefy the gas passing over its surface by using the low temperature generated by the refrigerant circulation, which is lower than the dew point temperature of the recovered vapor. The condenser coil 6 is connected to the external auxiliary refrigeration unit through the interface to continuously maintain the low temperature operation.

[0026] As a further implementation of this scheme, the inner side of the tank body 1 near the air inlet 5 and the air outlet 4 is provided with through holes. The inner side of the air outlet 4 and the air inlet 5 are hollow. The inner side of the air inlet 5, the inner side of the tank body 1 and the inner side of the air outlet 4 are all connected. The air inlet 5 and the air outlet 4 are located on the head and tail sides of the tank body 1. The air inlet 5 is connected to the deacidification container, and the air outlet 4 is connected to the auxiliary device air pump or vacuum pump.

[0027] As a further implementation of this scheme, multiple guide plates 10 are used. A guide plate 10 is installed on the inner side of the tank 1 near the air inlet 5, with a gap between the guide plate 10 and the inner side of the tank 1. The inner side of the guide pipe 7 is hollow, and the rear end of the guide pipe 7 is a through structure. The inner side of the diffuser pipe 8 is hollow, with a gap between the rear end of the guide pipe 7 and the front end of the internal partition plate 9. A gap is also provided between the front end of the guide plate 10 and the rear end of the internal partition plate 9. The guide pipe 7 and the internal partition plate 9 are fixed together to form a flow guiding and gas diffusion mechanism. The remaining gas flow after condensation treatment by the condensing coil 6 in the previous stage cold trap chamber flows through the guide pipe 7 and the internal partition plate 9. The gas enters the interior of the guide pipe 7 through the notch at the connection of the partition 9, and then enters the diffuser pipe 8 of the next stage cold trap under negative pressure. At the end of the diffuser pipe 8, the guide plate 10 causes the gas to diffuse relatively evenly in the space of the next stage cold trap chamber, so that the gas can have sufficient and uniform contact with the aforementioned condensing coil 6 for heat exchange. The partition plate 9 in the chamber separates the cold trap chambers of each stage in the tank 1. The recovered gas enters each cold trap step by step to complete efficient condensation and recovery. The temperature sensor is fixed on the outer surface of the aforementioned guide pipe 7 to measure the temperature in the cold trap and to control the start and stop of the auxiliary device refrigeration unit.

[0028] Work process;

[0029] Pre-cooling stage: Pre-cooling of condensation chamber / tank: Before the formal recycling work, the cold trap in tank 1 is pre-cooled to the specified working temperature. After the pre-cooling is completed, the condensation coil 6 in the cold trap will be in a low temperature state.

[0030] Gas intake and primary condensation: Open inlet 5 and outlet 4: Open inlet 5 and outlet 4 of tank 1, start air pump / vacuum pump: Start the air pump / vacuum pump of the auxiliary device to draw the deacidification liquid vapor from the gas source of the volatile deacidification liquid in the deacidification container into tank 1.

[0031] Primary cold trap chamber treatment: Under negative pressure, the deacidification liquid vapor diffuses fully under the action of the guide plate 10 in the primary cold trap chamber, and comes into contact with the low temperature condensing coil 6 to exchange heat. The vapor below the dew point temperature condenses and liquefies, and the liquid deacidification liquid accumulates at the bottom of the tank 1.

[0032] Gas condensation and diffusion in stages: Gas enters the guide pipe 7, and under the continuous suction of the gas pump / vacuum pump, the gas enters the interior of the guide pipe 7 through the gap at the connection between the guide pipe 7 and the partition plate 9 inside the chamber.

[0033] Secondary cold trap chamber treatment: Gas enters the secondary cold trap chamber through diffuser 8, repeats the treatment process of the primary cold trap chamber, and is condensed and liquefied again;

[0034] Three-stage cold trap chamber treatment: Gas enters the three-stage cold trap chamber and repeats the above condensation and liquefaction process again;

[0035] Exhaust gas discharge: The exhaust gas, after being treated by a three-stage cold trap, is discharged from outlet 4. The content of deacidification liquid in the exhaust gas can be controlled within 1000 ppm.

[0036] Liquid deacidification liquid recovery: Intermittent opening of the recovery port: When a large amount of liquid deacidification liquid accumulates at the bottom of the cold trap, the deacidification liquid recovery port 3 is opened intermittently to allow the liquid deacidification liquid to flow into the deacidification liquid recovery storage container.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A volatile deacidification liquid condensation and recovery device, comprising a tank (1), characterized in that: An observation window (2) is fixedly connected to the outside of the tank (1). A deacidification liquid recovery port (3) is fixedly connected to the inside of the bottom of the tank (1). An air outlet (4) is fixedly connected to the rear end of the deacidification liquid recovery port (3). An air inlet (5) is fixedly connected to the front end of the tank (1). A condensing coil (6) is fixedly connected to the inside of the tank (1) via a bracket. An internal partition plate (9) is fixedly connected to the inside of the tank (1). A diffuser (8) is fixedly connected to the inside of the internal partition plate (9). A guide pipe (7) is fixedly connected to the front end of the internal partition plate (9) via a protrusion. A guide plate (10) is fixedly connected to the rear end of the internal partition plate (9) via a connecting frame.

2. The volatile deacidification liquid condensation and recovery device according to claim 1, characterized in that: The inner side of the tank (1) is hollow. A through hole is provided on the inner side of the tank (1) near the observation window (2). The inner side of the observation window (2) is hollow. The tank (1) is connected to the observation window (2) through the through hole.

3. The volatile deacidification liquid condensation and recovery device according to claim 1, characterized in that: The tank (1) has a through hole on the inner side near the deacidification liquid recovery port (3). The inner side of the deacidification liquid recovery port (3) is hollow. An electromagnetic valve is installed inside the deacidification liquid recovery port (3). The inner side of the tank (1) is connected to the inner side of the deacidification liquid recovery port (3) through the through hole.

4. The volatile deacidification liquid condensation and recovery device according to claim 1, characterized in that: The number of partition plates (9) inside the tank is set to be multiple. The tank body (1) is divided into three cold trap chambers by the partition plates (9). The three cold trap chambers inside the tank body (1) are all equipped with condensing coils (6).

5. The volatile deacidification liquid condensation and recovery device according to claim 1, characterized in that: The tank (1) has through holes on the inner side near the air inlet (5) and the air outlet (4). The inner sides of the air outlet (4) and the air inlet (5) are hollow. The inner side of the air inlet (5), the inner side of the tank (1) and the inner side of the air outlet (4) are all connected.

6. The volatile deacidification liquid condensation and recovery device according to claim 1, characterized in that: The number of the guide plates (10) is multiple. The guide plates (10) are installed on the inner side of the tank (1) near the air inlet (5). There is a gap between the guide plates (10) and the inner side of the tank (1).

7. The volatile deacidification liquid condensation and recovery device according to claim 1, characterized in that: The inner side of the guide pipe (7) is hollow, the rear end of the guide pipe (7) is a through structure, the inner side of the diffuser pipe (8) is hollow, a gap is provided between the rear end of the guide pipe (7) and the front end of the partition plate (9) in the warehouse, and a gap is provided between the front end of the guide plate (10) and the rear end of the partition plate (9) in the warehouse.

Images