Drainage overflow device of washing equipment

Abstract

The utility model discloses a drainage overflow device of washing equipment, which is used for maintaining the stability of the liquid level in a washing pool and comprises an automatic drainage pipe, a manual drainage pipe and an overflow structure, and a water inlet of the overflow structure is fixedly arranged at an overflow port of the washing pool and is communicated with the inside of the washing pool. A water outlet of the overflow structure is communicated with a first node on the automatic drainage pipe in a butt joint mode, the manual drainage pipe is communicated with a second node on the automatic drainage pipe in a butt joint mode, and the second node is located in front of the first node. On the basis of conventional washing equipment, the water drainage mode is changed, a forced mechanical overflow device is additionally arranged, normal operation of the washing equipment is guaranteed, meanwhile, when a system fault occurs, it is guaranteed that the system can automatically overflow, the system is more stable and efficient, and then the effects of energy conservation and emission reduction are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas odor removal and dust removal in the tobacco industry, and specifically relates to a drainage overflow device for water washing equipment. Background Art

[0002] At present, one of the commonly used technologies in the market for the treatment of tobacco exhaust such as silk dehumidification, silk dust removal, and rolling dust removal is water washing technology. The main equipment is a high-efficiency cross-flow chemical washing tank equipment, and its working principle is to absorb the solute in the gas into the liquid through the gas absorption process of gas-liquid two-phase contact, and remove gaseous pollutants by gas-liquid two-phase contact chemical reaction.

[0003] High-efficiency cross-flow chemical washing tank equipment must be designed with drainage and overflow devices. The drainage device mainly realizes the automatic drainage of the equipment and the manual drainage function in emergency situations. The overflow device mainly functions to open the automatic overflow valve when the liquid level of the internal circulating water exceeds the high-level alarm, and the circulating water in the washing tank is discharged to restore normal operation.

[0004] The drainage and overflow functions of the equipment are mainly controlled by solenoid valves (electric actuators). In this way, when a gas circuit or circuit failure occurs, the water level in the equipment rises, affecting the normal operation of the system. At the same time, the overflow port structure has no slope. The circulating water in the washing pool is easily sucked into the overflow port under the influence of the suction of the terminal fan. The liquid level is often high, which leads to frequent drainage of the system and waste of water resources. Utility Model Content

[0005] The purpose of the utility model is to provide a drainage overflow device for water washing equipment. On the basis of conventional water washing equipment, the drainage form is changed and a forced mechanical overflow device is added to ensure the normal operation of the water washing equipment. At the same time, when a system failure occurs, it is ensured that the system can overflow automatically, making the system more stable and efficient, thereby achieving the effect of energy saving and emission reduction.

[0006] The utility model adopts a technical solution to solve its technical problem, which is to propose a drainage overflow device for water washing equipment, which is used to maintain the stability of the liquid level in the washing tank, including an automatic drain pipe, a manual drain pipe, and an overflow structure. The water inlet of the overflow structure is fixedly arranged at the overflow port of the washing tank and is connected with the washing tank. The water outlet of the overflow structure is docked and connected with a first node on the automatic drain pipe, and the manual drain pipe is docked and connected with a second node on the automatic drain pipe, and the second node is located in front of the first node.

[0007] Furthermore, the front end of the manual drain pipe is connected to the automatic drain pipe at the second node at the front end of the automatic drain pipe, and the rear ends of the automatic drain pipe and the manual drain pipe are connected to the washing pool.

[0008] Furthermore, the rear ends of the automatic drain pipe and the manual drain pipe are both connected to the bottom of the washing pool.

[0009] Furthermore, a control valve is provided on the automatic drain pipe behind the second node, and the control valve is used to open / close the automatic drain pipe according to the liquid level in the washing tank.

[0010] Furthermore, a mechanical valve is provided on the manual drain pipe, and the mechanical valve is used to open / close the manual drain pipe.

[0011] Furthermore, a first sensor and a second sensor for detecting the liquid level are provided in the washing tank, and the first sensor and the second sensor are electrically connected to the controller of the control valve.

[0012] The controller can be electrically connected to the control system of the washing pool to obtain the liquid level detection data in the washing pool, adjust the on / off state of the control valve on the automatic drain pipe according to the liquid level, and maintain the dynamic balance of the liquid level.

[0013] Furthermore, the overflow structure includes a fixed plate, an overflow channel, and an overflow pipe. The fixed plate is arranged on the outside of the low-position port of the overflow channel, the low-position port is connected to the overflow port of the washing pool, and is fixed to the washing pool through the fixed plate; the upper port of the overflow pipe is arranged on the lower side of the high-position port of the overflow channel, and the lower port of the overflow pipe is connected to the first node.

[0014] Furthermore, the overflow channel includes a first horizontal channel, an ascending channel and a second horizontal channel which are connected to each other in sequence, the first horizontal channel is a low end, the second horizontal channel is a high end, the first horizontal channel is fixed to the washing pool through the fixing plate, and the second horizontal channel is located above the first horizontal channel; the first horizontal channel opens the low port horizontally, and the second horizontal channel opens the high port downwardly.

[0015] Furthermore, a horizontal overflow mouth is provided in the lower connection structure at the joint between the ascending channel and the second horizontal channel, and the highest point of the overflow mouth is located above the highest point of the overflow port.

[0016] The overflow port is structurally set higher than the maximum alarm liquid level in the washing tank, thereby avoiding unnecessary drainage caused by changes in the liquid level in a small range in the washing tank, and is more conducive to maintaining a stable liquid level in the washing tank.

[0017] Furthermore, an observation window is provided on the side wall of the high-position port of the overflow channel, and the center position of the observation window corresponds to the highest point of the overflow port.

[0018] The beneficial effects of the utility model are:

[0019] The utility model proposes a drainage overflow device for water washing equipment, which adopts a new structural design, so that the overflow port is set higher than the highest alarm liquid level in the washing tank, thereby avoiding unnecessary drainage caused by changes in the liquid level in a small range in the washing tank, and achieving the purpose of energy saving and consumption reduction. At the same time, the overflow port is a forced mechanical overflow port, which fundamentally avoids the failure of the overflow port device caused by sudden situations in the on-site operation of the system, such as gas or circuit failures.

[0020] This application can realize automatic drainage and manual drainage of water washing equipment; at the same time, when the automatic drainage valve fails, the water washing equipment can be forced to overflow, the water storage level of the equipment can be reduced, and the system operation can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated into the specification and constitute a part of the specification, illustrate embodiments of the utility model and are used together with the description to explain the principles of the utility model. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the utility model, rather than all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural diagram of a drainage overflow device of a water washing equipment;

[0023] Figure 2 is a cross-sectional view of the overflow structure;

[0024] Figure 3 This is a schematic diagram of the application of a drainage overflow device for water washing equipment.

[0025] In the figure: 1. automatic drain pipe; 2. manual drain pipe; 3. overflow structure; 4. washing pool; 11. control valve; 21. mechanical valve; 31. observation window; 32. fixing plate; 33. overflow pipe; 34. overflow valve; 41. first sensor; 42. second sensor. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the embodiments of the utility model and the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work. In addition, the design orientation only represents the relative position relationship between the components, not the absolute position relationship.

[0027] First of all, it should be understood that the water storage level in the water washing equipment is related to the operating efficiency and treatment effect of the system. The equipment is equipped with a fully automatic water quality monitoring system composed of a pH value monitoring system, a fully automatic water supply and drainage control system composed of a liquid level meter, drain valve, etc., and a liquid level automation control system.

[0028] The circulating water inside the equipment is monitored in real time through the central control system. The system can replace and add chemicals to the water in the washing pool according to the pH value, temperature and frequency of use of the circulating water to maintain the liquid quality. The pH is maintained between 6-8 to ensure the water quality of the circulating spray water and the efficiency of waste gas treatment. At the same time, the discharge of external drainage meets the secondary emission standard of the comprehensive sewage discharge standard GB8978-1996.

[0029] The utility model embodiment provides a drainage overflow device for a washing device, which is used to maintain the stability of the liquid level in the washing tank 4. Figure 1 , Figure 2 , Figure 3 , mainly includes an automatic drain pipe 1, a manual drain pipe 2, and an overflow structure 3. The water inlet of the overflow structure 3 is fixed to the overflow port of the washing pool 4 and is connected with the washing pool 4. The water outlet of the overflow structure 3 is connected to the first node on the automatic drain pipe 1, and the manual drain pipe 2 is connected to the second node on the automatic drain pipe 1, and the second node is located in front of the first node.

[0030] In the present application, the front-to-back relationship between the first node and the second node is determined based on the direction of drainage in the drain pipe. The front end of the manual drain pipe 2 is connected to the automatic drain pipe 1 at the second node at the front end of the automatic drain pipe 1, and the rear ends of the automatic drain pipe 1 and the manual drain pipe 2 are connected to the wash basin 4.

[0031] Preferably, the rear ends of the automatic drain pipe 1 and the manual drain pipe 2 are both connected to the bottom of the washing tank 4, so that when changing water and draining sewage in the washing tank 4, the sewage at the bottom can be effectively removed without any residue. It is understandable that only one drainage port can be provided at the bottom of the washing tank 4, and the rear ends of the automatic drain pipe 1 and the manual drain pipe 2 are connected to the drainage port of the washing tank 4 after being merged through a pipe, so that the two drain pipes share one drainage port.

[0032] In the present application, when realizing the automatic drainage function of the automatic drainage pipe 1, an automatically controlled stop valve is arranged thereon, which may be a solenoid valve, a pneumatic valve, etc., and is controlled according to the liquid level detection signal in the washing tank 4.

[0033] Specifically, a control valve 11 is provided on the automatic drain pipe 1 behind the second node, and the control valve 11 is used to open / close the automatic drain pipe 1 according to the liquid level in the washing tank 4 .

[0034] Similarly, a stop valve operated by a means, such as a mechanical manual valve, is provided on the manual drain pipe 2 . A mechanical valve 21 is provided on the manual drain pipe 2 , and the mechanical valve 21 is used to open / close the manual drain pipe 2 .

[0035] For the liquid level detection in the washing tank 4, at least two sensors for detecting the liquid level are included, namely the maximum liquid level detection and the minimum liquid level detection. The maximum liquid level detection is used to limit the automatic water replenishment system to prevent the liquid in the washing tank 4 from overflowing, and the minimum liquid level detection is used to assist the water change system to avoid residual liquid in the washing tank 4 when changing water.

[0036] For example, see Figure 3 A first sensor 41 and a second sensor 42 for detecting the liquid level are arranged in the washing tank 4, and the first sensor 41 and the second sensor 42 are electrically connected to the controller of the control valve 11. The first sensor 41 can be arranged on the inner wall of the washing tank 4, and its height can correspond to the height of the overflow port, and the highest liquid level can be selected for the installation of the first sensor 41; the second sensor 42 can be arranged at the bottom of the washing tank 4.

[0037] As a feasible embodiment, the first sensor 41 can be provided with a plurality of liquid level detection points, including a standard liquid level, a fluctuation overflow interval, and a maximum alarm liquid level. The standard liquid level is below the maximum alarm liquid level. The standard liquid level is the lowest operating liquid level of the washing tank. When the liquid level in the washing tank 4 is exactly at the standard liquid level, overflow will not occur at the overflow structure 3; the fluctuation overflow interval is between the standard liquid level and the maximum alarm liquid level. When performing the cleaning operation, the liquid level may fluctuate in this interval, and overflow may occur at the overflow structure 3, but it will not trigger the automatic drainage and automatic water replenishment of the washing tank 4, thereby achieving the purpose of energy saving and emission reduction.

[0038] It is understandable that when the liquid level in the washing tank 4 is lower than the standard liquid level, automatic water replenishment can be performed, and when the liquid level exceeds the maximum alarm liquid level, automatic drainage should be performed. When the liquid level is retained in the overflow interval for cleaning operations, the liquid level fluctuates and may be below the standard liquid level or above the maximum alarm liquid level, which will frequently trigger automatic drainage and automatic water replenishment. When the drainage overflow device of the present application is present, these falsely triggered detection signals will not be affected. When the liquid level fluctuates, it can be directly drained outward through the overflow structure 3 without the need to frequently trigger automatic drainage.

[0039] In an embodiment of the present application, the overflow structure 3 includes a fixed plate 32, an overflow channel, and an overflow pipe 33. The fixed plate 32 is arranged on the outside of the low-position port of the overflow channel, the low-position port is connected to the overflow port of the washing pool 4, and is fixed to the washing pool 4 through the fixed plate 32; the upper port of the overflow pipe 33 is arranged on the lower side of the high-position port of the overflow channel, and the lower port of the overflow pipe 33 is connected to the first node.

[0040] It is understandable that the sizes of the low-position port and the overflow port can be matched, and the fixing plate 32 can be directly fixed to the outer wall of the washing tank 4 or to the mounting structure on the outer wall.

[0041] Exemplarily, the washing tank 4 can be provided with a corresponding installation structure based on the overflow port, providing a support position for the fixation of the fixed plate 32 and a connecting channel for the low-position port, thereby realizing the docking installation of the overflow structure 3 without additionally damaging the main structure of the washing tank 4; on this basis, the size of the overflow port can be designed to match the low-position port.

[0042] In a specific example, the overflow channel includes a first horizontal channel, an ascending channel and a second horizontal channel which are connected in sequence, the first horizontal channel is the low end, and the second horizontal channel is the high end; during installation, the first horizontal channel is fixed to the washing tank 4 through a fixing plate 32, and the second horizontal channel is located above the first horizontal channel, and the ascending channel is inclined upward; the first horizontal channel opens a low port horizontally toward the washing tank 4, and the second horizontal channel opens a high port vertically downward, the horizontally opened low port faces the liquid surface of the washing tank 4, and the vertically downward high port corresponds to the installation of the overflow pipe 33, and is connected to the first node on the automatic drain pipe 1 through the overflow pipe 33.

[0043] When the liquid in the washing tank 4 overflows from the overflow channel, it can flow directly into the automatic drain pipe 1 and is located in front of the control valve 11. It is not controlled by the control valve 11 and can be directly discharged to the outside.

[0044] The matching form and structure of the overflow opening 34 and the overflow channel can be found in Figure 2 As shown in the figure, the lower connecting structure at the joint of the ascending channel and the second horizontal channel is provided with a horizontal overflow spout 34, the highest point of the overflow spout 34 is located above the highest point of the overflow port, and the horizontal overflow spout 34 can intercept the liquid entering the overflow channel from the overflow port. As long as the liquid level does not exceed the overflow spout 34, it will not be discharged into the overflow pipe 33. When the liquid level in the washing pool 4 is higher than the overflow spout 34, the liquid level in the overflow channel will exceed the overflow spout 34, and will be directly discharged into the automatic drain pipe 1 through the overflow pipe 33.

[0045] It can be understood that the inner cavity structure of the overflow channel can be a rectangular cavity, and the horizontal overflow mouth 34 is arranged at the lower part to directly intercept the overflowing liquid; the highest point of the overflow mouth 34 is a horizontal structure in the horizontal direction, which can effectively intercept the liquid entering the second horizontal channel from the ascending channel; after the liquid passes over the overflow mouth 34, it can flow directly downward, flow through the overflow pipe 33 to the automatic drain pipe 1, and be discharged to the outside.

[0046] As a preferred embodiment, an observation window 31 may be provided on the side wall of the high-position port of the overflow channel, the center position of the observation window 31 corresponds to the highest point of the overflow opening 34, and the overflow situation in the washing tank 4 can be effectively observed through the observation window.

[0047] Based on the overflow device of the present application, when the pH value of the circulating water in the washing equipment exceeds the value set by the system, or the temperature of the circulating water exceeds the value set by the system, or the frequency of use of the circulating water exceeds the set value, the system will automatically open the control valve 11 to discharge the excessive water quality according to the feedback analog signal, and the system will monitor the water storage level at the same time. When the liquid level reaches the set value, the control valve 11 is closed, the water replenishment valve is automatically opened, and the system replenishes water to reach the standard liquid level. In addition, when the system is running, due to the influence of factors such as air volume and wind speed, the circulating water in the equipment is a dynamic balance process, that is, the water storage level of the equipment also changes in real time. In order to solve the impact of the instantaneous fluctuation of the system on the liquid level, the overflow channel is designed as a slope structure as a whole, so that the overflow opening 34 is set higher than the highest alarm liquid level of the washing tank 4 in structure, thereby avoiding unnecessary drainage due to changes in the liquid level in a small range in the washing tank 4.

[0048] Based on the actual situation, the washing equipment automatically opens the control valve 11 on the automatic drainage pipe 1 according to the feedback analog signal to discharge the excessive water quality. At the same time, the system will monitor the water storage level. When the liquid level reaches the set value, the control valve 11 is closed, the water supply valve is automatically opened, and the system replenishes water to reach the standard liquid level. For equipment maintenance or equipment failure, the mechanical valve 21 on the manual drainage pipe 2 can be manually opened to drain water, thereby ensuring the normal operation of the system in an emergency.

[0049] When the system is replenished with water, when the liquid level reaches the overflow level set by the equipment (such as Figure 2 When the system reaches the a line shown in the figure, the system automatically closes the water supply valve according to the feedback signal. When the system is running, due to the influence of factors such as air volume and wind speed, the circulating water in the equipment is a dynamic balance process. Due to the instantaneous fluctuation of the system, the liquid level of the equipment reaches the forced overflow level (such as Figure 2 The circulating water is automatically forced to overflow to ensure the normal operation of the system. At the same time, the overflow opening 34 is designed in a structure so that the forced overflow liquid level (b) is higher than the maximum alarm liquid level (a) of the washing tank 4, thereby avoiding unnecessary drainage caused by changes in the liquid level in the washing tank 4 within a small range, thereby saving energy and reducing consumption.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0051] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementation methods, and the specific embodiments of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A drainage overflow device for a washing device, used to maintain the stability of the liquid level in a washing tank (4), characterized in that: The invention comprises an automatic drain pipe (1), a manual drain pipe (2), and an overflow structure (3); the water inlet of the overflow structure (3) is fixedly arranged at the overflow port of the washing tank (4) and is connected with the washing tank (4); the water outlet of the overflow structure (3) is connected to a first node on the automatic drain pipe (1); the manual drain pipe (2) is connected to a second node on the automatic drain pipe (1), and the second node is located in front of the first node.

2. A drainage overflow device for a washing device according to claim 1, characterized in that: The front end of the manual drain pipe (2) is butt-jointed and connected to the automatic drain pipe (1) at the second node at the front end of the automatic drain pipe (1), and the rear ends of the automatic drain pipe (1) and the manual drain pipe (2) are butt-jointed and connected to the washing basin (4).

3. A drainage overflow device for a washing device according to claim 2, characterized in that: The rear ends of the automatic drainage pipe (1) and the manual drainage pipe (2) are both connected to the bottom of the washing pool (4).

4. A drainage overflow device for a washing device according to claim 1, characterized in that: A control valve (11) is provided on the automatic drain pipe (1) behind the second node, and the control valve (11) is used to open / close the automatic drain pipe (1) according to the liquid level in the washing tank (4).

5. The drainage overflow device of a washing equipment according to claim 1, characterized in that: The manual drain pipe (2) is provided with a mechanical valve (21), and the mechanical valve (21) is used to open / close the manual drain pipe (2).

6. A drainage overflow device for a washing device according to claim 4, characterized in that: A first sensor (41) and a second sensor (42) for detecting the liquid level are arranged in the washing tank (4); the first sensor (41) and the second sensor (42) are electrically connected to the controller of the control valve (11).

7. A drainage overflow device for a washing device according to claim 1, characterized in that: The overflow structure (3) comprises a fixed plate (32), an overflow channel, and an overflow pipe (33); the fixed plate (32) is arranged outside a low-position port of the overflow channel, the low-position port is butted against an overflow port of the washing tank (4), and is fixedly connected to the washing tank (4) through the fixed plate (32); the upper port of the overflow pipe (33) is arranged below a high-position port of the overflow channel, and the lower port of the overflow pipe (33) is butted against and communicated with the first node.

8. A drainage overflow device for a washing device according to claim 7, characterized in that: The overflow channel comprises a first horizontal channel, an ascending channel and a second horizontal channel which are connected in sequence, the first horizontal channel being a low-position end and the second horizontal channel being a high-position end, the first horizontal channel being fixed to the washing tank (4) via the fixing plate (32), and the second horizontal channel being located above the first horizontal channel; the first horizontal channel has the low-position port opened horizontally, and the second horizontal channel has the high-position port opened downwardly.

9. A drainage overflow device for a washing device according to claim 8, characterized in that: The lower connection structure at the joint between the ascending channel and the second horizontal channel is provided with a horizontal overflow spout (34), and the highest point of the overflow spout (34) is located above the highest point of the overflow port.

10. A drainage overflow device for a washing device according to claim 9, characterized in that: An observation window (31) is provided on the side wall of the high-position port of the overflow channel, and the central position of the observation window (31) corresponds to the highest point of the overflow opening (34).

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