CN214459212U

CN214459212U - Wet spraying device for paper web

Info

Publication number: CN214459212U
Application number: CN202120344247.0U
Authority: CN
Inventors: 王宝辉; 潘小敏; 林振蒲; 张冬春; 姬长雷
Original assignee: Zhejiang Shanying Paper Industry Co Ltd
Current assignee: Zhejiang Shanying Paper Industry Co Ltd
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2021-10-22
Anticipated expiration: 2031-02-05

Abstract

The utility model provides a wet device is spouted to paper web, it has solved the relatively poor scheduling problem of wet device job stabilization nature of spouting, it includes a plurality of parallelly connected water spray pipe subassemblies, the water spray pipe subassembly passes through the distributing valve and the water pipe is connected with water supply mechanism, be provided with a plurality of parallelly connected water pumps between water supply mechanism and distributing valve or the water spray pipe subassembly, the water pump is extra parallelly connected to have the reserve pump body and be provided with first open and close valve between each water pump respectively, the water spray pipe subassembly is connected with a plurality of parallelly connected fans and the fan is extra parallelly connected to have reserve fan, fan and reserve fan pass through tuber pipe and water spray pipe subassembly intercommunication and between be provided with the second open and close valve respectively. The utility model has the advantages of good stability, even spraying and the like.

Description

Wet spraying device for paper web

Technical Field

The utility model belongs to the technical field of spout wet unit, concretely relates to paper web spouts wet unit.

Background

At present, in the production process of common paper, the wet spraying process of the paper surface is realized by adopting a manual mode. However, the overall quality of the paper subjected to the manual wet spraying treatment is poor, and if the paper is not subjected to the wet spraying treatment, the quality of the produced paper is poor. The banner spray wetting device is very important to control the banner of a paper web in the production process, and is key equipment, and the poor use of the banner spray wetting device can lead to the incapability of ensuring the variety of paper pages. When the water pump or the positive pressure fan is abnormal, the banner spraying device cannot be started because the working conditions are not met. The problem that the water pump or the positive pressure fan is long in time and has great influence on the variety of the produced paper is solved. This causes problems such as waste of production cost and deterioration of quality.

In order to solve the defects of the prior art, people have long searched for and put forward various solutions. For example, the chinese patent document discloses a surface spraying apparatus [201220170968.5] in a paper production process, which includes a main pipe, a plurality of tees connected in series on the main pipe, a threaded port provided at one end of the main pipe, the other end of the main pipe connected to one port of a tee ball valve, the other two ports of the tee ball valve connected to a water pipe and a gas pipe respectively, an internal threaded joint provided at the third port of the tee, a nozzle connected to the internal threaded joint, and a pressure gauge provided on the main pipe near the tee ball valve.

Above-mentioned scheme has solved the not good problem of current paper humidification effect to a certain extent, but this scheme still has a great deal of not enough, for example spouts wet device job stabilization nature subalternation problem.

Disclosure of Invention

The utility model aims at the above-mentioned problem, a reasonable in design provides a wet device is spouted to paper web that station stability is good.

In order to achieve the above purpose, the utility model adopts the following technical proposal: this paper web spouts wet device, including a plurality of parallelly connected spray pipe subassemblies, the spray pipe subassembly passes through the distributing valve and the water pipe is connected with water supply mechanism, be provided with a plurality of parallelly connected water pumps between water supply mechanism and distributing valve or the spray pipe subassembly, the water pump is additionally connected in parallel has the reserve pump body and is provided with first open and close valve respectively between the reserve pump body and each water pump, the spray pipe subassembly is connected with a plurality of parallelly connected fans and the fan is additionally connected in parallel has reserve fan, fan and reserve fan pass through tuber pipe and spray pipe subassembly intercommunication and between be provided with the second open and close valve respectively. A plurality of spray pipe subassemblies are equipped with parallelly connected fan and water pump, adopt gas-liquid mixture, have better stability.

In the paper web wet spraying device, the water spraying pipe assembly comprises a water spraying pipe with a gas-liquid mixing cavity inside, a plurality of water spraying ports communicated with the gas-liquid mixing cavity are uniformly formed in the water spraying pipe along the axial direction, and nozzles are respectively installed on the water spraying ports. The spray pipes uniformly spray the gas-liquid mixture through the nozzles, and the spray pipes are independent from each other.

In foretell paper web spouts wet device, the spray pipe both ends are sealed by the end cover respectively, open on the end cover have with the air inlet interface of tuber pipe connection or with water piping connection's interface of intaking, air inlet interface and the interface of intaking include the body with gas-liquid mixing chamber intercommunication, body end department is provided with annular joint, open in the body outside has a plurality of cutting that extend along body axial direction, water pipe or tuber pipe port are provided with the sealed tube of being connected with the body, open the sealed tube inboard has the slot of pegging graft each other with the cutting, sealed tube and body outside cover have with sealed tube and body threaded connection's fixed cover. The spray pipe can be selected according to actual need for assembly, and its installation is comparatively convenient.

In the paper web wet spraying device, the gas-liquid mixing cavity comprises spraying cavities which are arranged along the axial direction of the water spraying pipe and are communicated with each other, and the spraying cavities are communicated with the water spraying ports in a one-to-one correspondence mode. The independent spraying cavities ensure that the pressure applied to each water spraying opening is approximately consistent.

In the above-mentioned wet spraying device for paper web, the nozzle includes a nozzle connected with the water jet, and several pairs of spray holes inclined with respect to the axial direction of the nozzle are distributed on the end of the nozzle along the circumferential direction, and each pair of spray holes is inclined with respect to the axial direction of the nozzle. The air-water mixture ejected by the nozzles is staggered, so that direct impact on the surface of paper is avoided, and the forming quality of the paper is ensured.

In the above-mentioned wet spraying device for paper web, the water supply mechanism comprises a water tank, and a filter mechanism is arranged between the water tank and the water pump or the standby pump body. The water tank of water supply mechanism is used for temporarily depositing water, avoids paper that the sudden shutdown water leads to spouting wet shut-down.

In the above-mentioned paper web spray wetting apparatus, the water tank includes the box, and the box upper end is provided with the openable closing cap, and open one side in box below has the delivery port, and open one side in box top has the water inlet, sets up electrothermal tube and temperature sensor in the box, and open the box upper end has the relief valve. The adjustable inside temperature of water tank sprays the rivers of different temperatures according to actual need, guarantees the paper web quality.

In foretell paper web spraying device, the filter mechanism is including fixing the cartridge filter in the delivery port department of box, is provided with a plurality of layers of filter screen in the cartridge filter and filter screen mesh size reduces one by the delivery port towards the other end, and the cartridge filter is removable structure with delivery port and water pump. The filtering mechanism filters when the water body flows out of the water tank, so that the risk of blockage of the spray head is reduced.

In the paper web wet spraying device, the air filter is arranged at the inlet of the fan and the spare fan, the air filter comprises a filter frame body, the periphery of the filter frame body is provided with an air inlet connected with the fan and the spare fan, and two sides of the filter frame body are sealed by filter screens. The air filter carries out double-sided filtration, and the air pipe is guaranteed to have larger air flow.

In the above-mentioned paper web spray wet device, the distribution valve is installed in the cabinet body and the electric control box connected with the distribution valve is installed beside the cabinet body. The distribution valve is included by the cabinet and controls the water spray of each sprinkler pipe assembly.

Compared with the prior art, the utility model has the advantages of: the water pump and the fan which are connected in parallel are adopted, and an additional standby device is arranged, so that the water spray pipe assembly has better spray stability; the water supply mechanism can adjust the temperature of the internal water body, thereby ensuring the wet spraying quality of the paper; the water pipe and the air pipe are respectively provided with a filtering system, so that the inside of the water spray pipe assembly is ensured to be clean, and blockage is prevented.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a partial cross-sectional view of the spout assembly of the present invention;

FIG. 3 is a cross-sectional view of the air filter of the present invention;

FIG. 4 is a cross-sectional view of the filter mechanism of the present invention;

FIG. 5 is a sectional view of the water supply mechanism of the present invention;

in the figure, the water spray pipe assembly 1, the gas-liquid mixing chamber 11, the water spray port 12, the spray chamber 13, the cabinet 2, the electric cabinet 21, the distribution valve 3, the water pipe 4, the water pump 41, the standby pump body 42, the water supply mechanism 5, the water tank 51, the box body 52, the sealing cover 53, the water outlet 54, the water inlet 55, the electric heating pipe 56, the temperature sensor 57, the pressure release valve 58, the air pipe 6, the fan 61, the standby fan 62, the air filter 63, the filter frame body 64, the air inlet 65, the filter screen 66, the water spray pipe 7, the end cover 71, the air inlet interface 72, the water inlet interface 73, the pipe body 74, the joint 75, the insert strip 76, the sealing pipe 77, the slot 78, the fixing sleeve 79, the nozzle 8, the spray head 81, the spray hole 82, the filter mechanism 9, the filter cartridge 91 and the filter screen 92.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-5, a paper web wet spraying device comprises a plurality of water spraying pipe assemblies 1 connected in parallel, wherein the water spraying pipe assemblies 1 are connected with a water supply mechanism 5 through distribution valves 3 and water pipes 4, a plurality of water pumps 41 connected in parallel are arranged between the water supply mechanism 5 and the distribution valves 3 or between the water spraying pipe assemblies 1, the water pumps 41 are additionally connected in parallel with a standby pump body 42, first opening and closing valves are respectively arranged between the standby pump body 42 and each water pump 41, the water spraying pipe assemblies 1 are connected with a plurality of fans 61 connected in parallel, the fans 61 are additionally connected in parallel with standby fans 62, and the fans 61 and the standby fans 62 are respectively communicated with the water spraying pipe assemblies 1 through air pipes 6 and are provided with second opening and closing valves therebetween. The water is input to each spray pipe assembly 1 by the water supply mechanism 5 through the water pipe 4 and is driven by the water pump 41, the fan 61 inputs the outside air into the spray pipe assembly 1, when the single water pump 41 or the fan 61 breaks down, the standby pump body 42 and the standby fan 62 which are connected with the fan in parallel are started, and the water pressure and the air pressure inside the spray pipe assembly 1 are kept stable.

Specifically, the spray pipe assembly 1 comprises a spray pipe 7 with a gas-liquid mixing cavity 11 inside, the spray pipe 7 is provided with a plurality of water spray nozzles 12 communicated with the gas-liquid mixing cavity 11 along the axial direction, and the water spray nozzles 12 are respectively provided with a nozzle 8. The water jet 12 on the side of the water jet pipe 7 is opposite to the web surface, and continuously sprays water mist under the drive of the water pump 41 and the fan 61.

Deeply, both ends of the spray pipe 7 are respectively sealed by end covers 71, an air inlet port 72 connected with the air pipe 6 or an water inlet port 73 connected with the water pipe 4 is arranged on the end covers 71, the air inlet port 72 and the water inlet port 73 comprise pipe bodies 74 communicated with the gas-liquid mixing cavity 11, the end heads of the pipe bodies 74 are provided with annular joints 75, the outer sides of the pipe bodies 74 are provided with a plurality of inserting strips 76 extending along the axial direction of the pipe bodies 74, the ports of the water pipe 4 or the air pipe 6 are provided with sealing pipes 77 connected with the pipe bodies 74, the inner sides of the sealing pipes 77 are provided with inserting grooves 78 mutually inserted with the inserting strips 76, and the outer sides of the sealing pipes 77 and the pipe bodies 74 are sleeved with fixing sleeves 79 in threaded connection with the sealing pipes 77 and the pipe bodies 74. During installation, the tube body 74 is inserted into the sealing tube 77, and then the fixing sleeve 79 is rotated to keep the axial relative position thereof fixed.

Further, the gas-liquid mixing chamber 11 includes spraying chambers 13 arranged along the axial direction of the water spraying pipe 7 and communicated with each other, and the spraying chambers 13 are communicated with the water spraying ports 12 in a one-to-one correspondence manner. The spraying cavity 13 is used for liquid and gas to be concentrated and uniformly sprayed out under the action of air pressure.

Furthermore, the nozzle 8 comprises a nozzle 81 connected to the water outlet 12, and a plurality of pairs of nozzles 82 inclined with respect to the axial direction of the nozzle 81 are circumferentially distributed at the end of the nozzle 81, and each pair of nozzles 82 is inclined with respect to the axial direction of the nozzle 81. The inclined spray holes 82 enable each water flow to be staggered, and the pressure of the water flow or water mist directly sprayed to the surface of the pointer is reduced.

In addition, the water supply mechanism 5 includes a water tank 51, and a filter mechanism 9 is provided between the water tank 51 and the water pump 41 or the backup pump body 42. The filter mechanism 9 filters the liquid stored in the water tank 51 to prevent scale from clogging the nozzle holes 82 of the nozzle 8.

Meanwhile, the water tank 51 comprises a tank body 52, an openable and closable sealing cover 53 is arranged at the upper end of the tank body 52, a water outlet 54 is arranged at one side below the tank body 52, a water inlet 55 is arranged at one side above the tank body 42, an electric heating pipe 56 and a temperature sensor 57 are arranged in the tank body 52, and a pressure release valve 58 is arranged at the upper end of the tank body 52. The electric heating pipe 56 and the temperature sensor 57 form a feedback loop to control the temperature of the internal water body, and the temperature is adjusted to be a proper temperature according to actual needs.

Visibly, the filtering mechanism 9 includes a filter cartridge 91 fixed at the water outlet 54 of the box body 52, a plurality of layers of filter screens 92 are arranged in the filter cartridge 91, the mesh sizes of the filter screens 92 are gradually reduced from the water outlet 54 to the other end, and the filter cartridge 91, the water outlet 54 and the water pump 41 are detachable. The filter screen 92 filters impurities in water layer by layer, and the risk of internal blockage after long-time use is reduced.

Obviously, the air filter 63 is disposed at the inlet of the fan 61 and the spare fan 62, the air filter 63 includes a filter frame 64, the filter frame 64 is provided with air inlets 65 connected to the fan 61 and the spare fan 62, and two sides of the filter frame 64 are sealed by the filter screen 66. The screen 66 of the air filter 63 provides a double layer of filtered intake air with greater flux than a single intake passage.

Preferably, the distribution valve 3 is installed in the cabinet 2, and an electric cabinet 21 connected with the distribution valve 3 is installed beside the cabinet 2. The electric cabinet 21 controls the opening and closing of the distribution valve 3, and further controls the circulation of the water body towards the water spray pipe assembly 1.

In summary, the principle of the present embodiment is: the water is input to each spray pipe assembly 1 by the water supply mechanism 5 through the water pipe 4 and is driven by the water pump 41, the fan 61 inputs the outside air into the spray pipe assembly 1, when the single water pump 41 or the fan 61 breaks down, the standby pump body 42 and the standby fan 62 which are connected with the fan in parallel are started, and the water pressure and the air pressure inside the spray pipe assembly 1 are kept stable.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the water spray pipe assembly 1, the gas-liquid mixing chamber 11, the water spray opening 12, the spray chamber 13, the cabinet 2, the electric cabinet 21, the distribution valve 3, the water pipe 4, the water pump 41, the spare pump body 42, the water supply mechanism 5, the water tank 51, the box body 52, the cover 53, the water outlet 54, the water inlet 55, the electric heating pipe 56, the temperature sensor 57, the pressure relief valve 58, the air pipe 6, the blower 61, the spare blower 62, the air filter 63, the filter frame 64, the air inlet 65, the filter screen 66, the water spray pipe 7, the end cover 71, the air inlet 72, the water inlet 73, the pipe body 74, the joint 75, the insert 76, the sealing pipe 77, the slot 78, the fixing sleeve 79, the nozzle 8, the spray head 81, the spray hole 82, the filter mechanism 9, the filter cartridge 91, and the filter screen 92 are used more often, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. A wet spraying device for paper web comprises a plurality of water spraying pipe assemblies (1) connected in parallel, wherein the water spraying pipe assemblies (1) are connected with a water supply mechanism (5) through distribution valves (3) and water pipes (4), it is characterized in that a plurality of water pumps (41) which are connected in parallel are arranged between the water supply mechanism (5) and the distribution valve (3) or the water spray pipe component (1), the water pump (41) is additionally connected with a standby pump body (42) in parallel, first opening and closing valves are respectively arranged between the standby pump body (42) and each water pump (41), the water spray pipe component (1) is connected with a plurality of fans (61) which are connected in parallel, and the fans (61) are additionally connected with standby fans (62) in parallel, the fan (61) and the standby fan (62) are communicated with the water spray pipe assembly (1) through the air pipe (6), and second opening and closing valves are arranged between the fan and the standby fan.

2. The wet paper web spraying device according to claim 1, characterized in that the water spraying pipe assembly (1) comprises a water spraying pipe (7) with an air-liquid mixing cavity (11) inside, the water spraying pipe (7) is provided with a plurality of water spraying openings (12) communicated with the air-liquid mixing cavity (11) uniformly along the axial direction, and the water spraying openings (12) are respectively provided with a nozzle (8).

3. The paper web wet spraying device according to claim 2, wherein two ends of the water spraying pipe (7) are respectively sealed by end covers (71), the end covers (71) are provided with air inlet ports (72) connected with the air pipe (6) or water inlet ports (73) connected with the water pipe (4), the air inlet ports (72) and the water inlet ports (73) comprise pipe bodies (74) communicated with the gas-liquid mixing chamber (11), the end of each pipe body (74) is provided with an annular joint (75), the outer side of each pipe body (74) is provided with a plurality of inserting strips (76) extending along the axial direction of the pipe body (74), the port of the water pipe (4) or the air pipe (6) is provided with a sealing pipe (77) connected with the pipe body (74), the inner side of each sealing pipe (77) is provided with inserting grooves (78) mutually inserted with the inserting strips (76), and the outer sides of the sealing pipes (77) and the pipe bodies (74) are sleeved with fixed fixing pipes (77) and (74) in threaded connection A sleeve (79).

4. A wet-blasting apparatus according to claim 3, wherein said air-liquid mixing chamber (11) comprises spraying chambers (13) arranged along the axial direction of said water-spraying pipe (7) and communicating with each other, said spraying chambers (13) communicating with said water-spraying openings (12) in a one-to-one correspondence.

5. A device for moistening paper webs according to claim 4, characterized in that the nozzles (8) comprise nozzles (81) connected to the water jet (12), the ends of the nozzles (81) being circumferentially distributed with pairs of orifices (82) inclined with respect to the axial direction of the nozzles (81), each pair of orifices (82) being inclined with respect to each other.

6. A wet-spraying device for paper webs according to claim 1, characterized in that the water supply means (5) comprise a water tank (51), and a filter means (9) is arranged between the water tank (51) and the water pump (41) or the standby pump body (42).

7. The paper web spraying device according to claim 6, characterized in that the water tank (51) comprises a tank body (52), an openable cover (53) is arranged at the upper end of the tank body (52), a water outlet (54) is formed in one side below the tank body (52), a water inlet (55) is formed in one side above the tank body (52), an electric heating pipe (56) and a temperature sensor (57) are arranged in the tank body (52), and a pressure release valve (58) is formed in the upper end of the tank body (52).

8. The paper web spray wetting device according to claim 7, characterized in that the filtering mechanism (9) comprises a filter cartridge (91) fixed at the water outlet (54) of the box body (52), a plurality of layers of filter screens (92) are arranged in the filter cartridge (91), the mesh sizes of the filter screens (92) are gradually reduced from the water outlet (54) to the other end, and the filter cartridge (91), the water outlet (54) and the water pump (41) are of detachable structures.

9. The paper web moistening device according to claim 1, characterized in that air filters (63) are arranged at inlets of the fan (61) and the standby fan (62), each air filter (63) comprises a filter frame body (64), air inlets (65) connected with the fan (61) and the standby fan (62) are formed in the periphery of the filter frame body (64), and two sides of the filter frame body (64) are sealed by filter screens (66).

10. A wet spraying device for paper web according to claim 1, characterized in that the distributing valve (3) is installed in the cabinet body (2) and an electric control box (21) connected with the distributing valve (3) is installed beside the cabinet body (2).