CN205951255U - All -round cooling negative pressure instillation wet -type self -cleaning cooler system - Google Patents

Abstract

The utility model relates to an all -round cooling negative pressure instillation wet -type self -cleaning cooler system, including cooler, filter, pump and liquid level case, the fluid -discharge tube is connected with the filter through first solenoid valve, the filter passes through the access connection that solenoid valve and pump are gone into to the pump, the delivery side of pump is connected with the liquid level case through pumping the solenoid valve, the inner chamber intercommunication of liquid level case through linking solenoid valve and cooler main part, the export of second liquid level case divide into two the tunnel, is connected through overflow solenoid valve and filter all the way, and the instillation solenoid valve is crossed to another sweetgum fruit and instillation flow control valve is connected with the instillation liquid mouth on the flange end cap. The utility model discloses can keep cooler cooling operation facial features to the cleaning, cooling capacity is invariable relatively, has the self -cleaning function, reduces the hand labor volume.

Description

A kind of comprehensive cooling negative pressure instillation wet type self-cleaning chiller system

Technical field

The utility model is related to film line, particularly a kind of comprehensive cooling negative pressure instillation wet type self-cleaning cooler System.

Background technology

At present, the auxiliary extruder vacuum system of known PET film production line is by vacuum (-tight) housing, cooler, filter, Roots Blower fan, oil water separator, screw pump, connecting tube and magnetic valve composition.In the operating temperature of 270 DEG C of auxiliary extruder system, right Evaporate in the melt and dissolved material of phthalic acid ethylene glycol fat, the mixed gas with small molecule and vapor as main component, by vacuum The vacuum (-tight) housing of system through electrical heating to 250 DEG C be actively incubated connecting tube, enter cooler and cooled down, the mixed air after cooling The connecting tube of active insulation through electrical heating to 180 DEG C and magnetic valve enter filter to body again, and filter flow channel cross-section amasss prominent So increase, reduced velocity flow, filter no Insulation, mix gas natural cooling, temperature further declines, in mixed gas Small molecule is condensed into tiny free state dust, and filters off in the filter, and remaining main component is the gaseous mixture of vapor Body is connected with roots blower by connecting tube and magnetic valve, provides one-level to vacuumize power by roots blower and is aspirated, gas warp Water-cooling type oil separator oil-water separation, then provide two grades to vacuumize discharge after power isolated at suction profit through screw pump.Vacuum The pressure of system is absolute pressure 5mbar, about 0.005 atmospheric pressure, i.e. the vacuum of -0.995 atmospheric pressure is come with this Remove impurity in the melt and dissolved material of auxiliary extruder, provide reliable production to ensure for production line downstream process.

Wherein the design structure of cooler and operation principle are：Cooler is to be cooled down with inside center coldplate, and shunts Gas, changes the flow direction of gas, and circular outer wall is the active insulation that electricity consumption is heated to 180 DEG C.Top is flange connection Round end cap seals, and end cap has cooling water inlet/outlet pipe couple, and is connected with the inside center coldplate of cooler, inseparable From.The liquid collecting bucket that bottom couples for flange, discharging tube connection valve are arranged at liquid collecting bucket bottom, and the gas flow section of cooler is narrow Narrow, suitable with the gas flow section of turnover cooler connecting tube, very fast gas flow rate is formed with this.Mixed gas are cold in entrance But, during device cooling, water vapor condensation Cheng Shui falls into liquid collecting bucket, and small molecule is condensed into tiny free state dust, follows flow velocity relatively Fast gas, the connecting tube of active insulation through electrical heating to 220 DEG C and magnetic valve enter filter.

But, under vacuum system 5mbar absolute pressure, negative pressure makes 270 DEG C in auxiliary extruder system of terephthalic acid (TPA) Macromolecular gasification point in the melt and dissolved material of ethylene glycol fat reduces and evaporates, this make mixed gas composition be not only small molecule and Vapor, also a small amount of macromolecular.When mixed gas containing gasification macromolecular enter cooler, gaseous macromolecular solidification Zero point is high, and when through 180 DEG C of cooler, rapid condensation becomes solid.Because gas flow rate is fast, circular outer wall is electricity Heating is actively incubated, little with the mixed gas temperature difference, and therefore, coldplate contact in molecule Shi center is frozen into solid, from level to level Condensation attachment cooler inwall, constantly reduces cooling effect of cooler, until blocking cooler.Contact solidification attachment from level to level Dirt, close structure, quality are solid.Blocked cooler changes the flow regime of mixing gas and makes cooler lose work Make function, until blocking cooler gas runner.So that vacuum system can not be worked, affect production run.

Producing for production line downstream process provides reliable guarantee, and often production line to be stopped is blocked by contamination by machine maintenance cleaning Inside cooler, the inside center coldplate due to top end cover and cooler is connected, and structure bulky is not easy to remove.Use Cucurbit suspender pulls out, but has close structure, big adhesive force pollutant contact solidification attachment, also can be difficult to pull out.Therefore from cold But top of the plate portion dismounting cleaning cooler is time-consuming, laborious.So, machine maintenance typically in cleaning, can only pull down the cooler collection of heaviness Liquid bucket, is cleared up from bottom.The cooler bottom terrain clearance pulling down cooler liquid collecting bucket is little, is shorter than the long and narrow gas of cooler Runner, it is impossible to be cleaned to cooler long and narrow gas flow top when therefore being cleared up with simple tools such as round steel.Machine repair personnel Cleaning length can only be increased with the simple tool that hand can bend by force, enable cleaning to reach cooler with thin round steel or thin band iron Long and narrow gas flow top.But the solid dirt of close structure, quality to be smashed to pieces with these intensity differences, having many bends or curves simple tool Dye thing, the long and narrow gas flow of the clean cooler of thorough cleaning is highly difficult, and the speed of therefore machine maintenance cleaning cooler is slow, efficiency Very low.Again because the cooler bottom terrain clearance pulling down cooler liquid collecting bucket is little, machine repair personnel cannot direct mesh in cleaning Depending on observing, can only be with flashlight from the cooler irradiated pulling down cooler liquid collecting bucket, the porch being opened from cooler When observing torch light irradiation, light leak situation when through gas flow to judge the degree of cooler cleaning, therefore, cooler The degree of cleaning out cannot directly be grasped.So after machine maintenance cleaning cooler, the long and narrow gas flow of cooler is not clean , simply gas flow is unimpeded.Such cooler, in cleaning, has appeared its design defect, lacks effective cleaning, sees Examine working space.The speed of cleaning cooler is slow, efficiency is low, pays off unclean.The circular outer wall of cooler is that electricity consumption is heated to 120 DEG C of active insulation and the refrigerating function of cooler collide with each other, and waste electric energy.PET production line has two auxiliary extruders, often The auxiliary extruder of platform respectively has a set of pumped vacuum systems, and often set pumped vacuum systems has two sets of cooling systems again, and a production line has four Cooler.In daily machine maintenance cleaning cooler, four coolers all can have different degrees of blocking, therefore, four coolers Need to clear up simultaneously.During cleaning cooler, time-consuming, laborious, a machine repair personnel clears up a cooler needs 23 hours, even if Four coolers of four machine repair personnels are cleared up simultaneously and are also sought after 23 hours, could clear up and complete.Clear up the cold of vacuum system But device must stop raw line, and PET production line day shift only has four machine repair personnels, and the machine maintenance human resources of occupancy are many and clearance time Long, increase downtime, have impact on production efficiency.

Utility model content

For the problems referred to above, the technical problems to be solved in the utility model is to provide a kind of comprehensive cooling negative pressure to instil Wet type self-cleaning chiller system, improves existing cooler construction, and coordinates negative pressure cleaning system, using comprehensive cooling, Negative pressure wet type self-cleaning mode, without labor cleaning, lifts cooling effect, improve production efficiency.

Adopt the following technical scheme that for this utility model：

A kind of comprehensive cooling negative pressure instillation wet type self-cleaning chiller system, including cooler, filter, pump and liquid Position case；Described cooler includes cooler body, is connected to the flange end cap of cooler body upper end by flange, and passes through Flange is connected to the liquid collecting bucket of cooler body lower end；Described cooler body is the double-deck cylinder being made up of internal layer and outer layer Body, is provided with cavity in cooler body；Gap between described internal layer and outer layer constitutes cooling water jecket, and in cooler body Outer layer on be respectively equipped with the first cooling water inlet connecting with cooling water jecket and the first coolant outlet, described cooler master Mixed gas entrance and the mixed gas outlet of connection cooler body internal cavity, described cooler master are additionally provided with the outer layer of body The center of body is provided with coldplate, is provided with cooling water flow conduits in described coldplate；The upper end edge of described cooler body internal cavity is cold But the instillation hole slot of the edge setting of plate and inner layer wall, described instillation hole slot lower end is connected with instillation guider；Described flange end Cover and be correspondingly provided with the second cooling water inlet that the drip solution mouth being connected with the hole slot that instils connected with cooling water flow conduits and second cold But water out；Described liquid collecting bucket lower end is provided with discharging tube；

Described discharging tube is connected with filter by the first magnetic valve, and described filter is by pumping into entering of magnetic valve and pump Mouth connects, and the outlet of described pump is connected with liquid level box by pumping out magnetic valve；Described liquid level box passes through to connect magnetic valve and cooling The inner space of device main body；The outlet of the second liquid level box is divided into two-way, leads up to overflow magnetic valve and is connected with filter, another Instillation magnetic valve is passed through on road and instillation flow control valve is connected with the drip solution mouth in flange end cap.

Further, described flange end cap top is provided with suspension ring.

Further, described filter is provided with release ball valve and Blowoff ball valve.

Further, the described pipeline pumping between magnetic valve and pump is connected with band by liquid electromagnetic valve by liquid pipeline.

Further, described liquid level box is provided with and unloads pressure electromagnetic valve.

The beneficial effects of the utility model are：Cooler is improved to the knot of bilayer zone cooling water jecket by the utility model Structure, increased cooling work area using comprehensive cooling work face, improves cooling performance, removes outside cooler circular body Active electrical heat tracing, energy saving.Increase the instillation hole slot for negative pressure wet type self-cleaning and instillation guider, cooperation simultaneously The filter of negative pressure cleaning system, pump and liquid level box, can comprehensive holding cooler internal clean, thus keeping cooling performance phase To constant.Further it is ensured that cooler has self-cleaning function, decrease the manual cleaning amount of labour, improve whole PET thin The production efficiency of the auxiliary extruder vacuum system of film production line.

Brief description

Below in conjunction with the accompanying drawings specific embodiment of the present utility model is described further, wherein：

Fig. 1 is the fundamental diagram of the auxiliary extruder vacuum system of PET film that the utility model is located；

Fig. 2 is the broken section structural map of existing cooler；

Fig. 3 is the broken section structural map of cooler of the present utility model；

Fig. 4 is the top view of the flange end cap of cooler of the present utility model；

In Fig. 5, A is the end view drawing of the instillation hole slot at coldplate edge, and B is the end view drawing of the instillation hole slot at inner layer wall edge；

Fig. 6 is total system flow chart of the present utility model.

Specific embodiment

With reference to the fundamental diagram of the auxiliary extruder vacuum system of existing PET film shown in Fig. 1, the course of work is as follows： In 270 DEG C of operating temperature, evaporate in the melt and dissolved material of terephthalate fat, with small molecule and vapor for main one-tenth Point mixed gas by vacuum (-tight) housing 1, vacuum (-tight) housing 2 102 through electrical heating to 160 DEG C actively be incubated connecting tube, enter and cool down Device 1, cooler 2 104 are cooled down, the mixing gas connection that the active through electrical heating to 120 DEG C is incubated again after cooling Pipe and magnetic valve 121 and magnetic valve 120 respectively enter filter 1, filter 2 106, and filter flow channel cross-section amasss prominent So increase, reduced velocity flow, filter no Insulation, mix gas natural cooling, temperature further declines, in mixed gas Small molecule is condensed into tiny free state dust, and filters off in the filter, and remaining main component is the gaseous mixture of vapor Body, by connecting tube and magnetic valve 123, magnetic valve 124, magnetic valve 125, is connected with roots blower 107, provides one by roots blower Level vacuumizes power and is aspirated, gas water cooled formula oil water separator 108 oil-water separation, then provides two grades through screw pump 109 Vacuumize power suction, then by oil water separator 110 oil-water separation, discharge through muffler 111, exhaust blow-down pipe 112.Vacuum system The pressure of system is absolute pressure 5mbar, about 0.005 atmospheric pressure, i.e. the vacuum of -0.995 atmospheric pressure to be removed with this Remove impurity in the melt and dissolved material of auxiliary extruder.

But, under vacuum system 5mbar absolute pressure, negative pressure makes 270 DEG C in auxiliary extruder system of terephthalic acid (TPA) Macromolecular gasification point in the melt and dissolved material of ethylene glycol fat reduces and evaporates, this make mixed gas composition be not only small molecule and Vapor, also a small amount of macromolecular.

With reference to the existing cooler construction shown in Fig. 2, including cooler body 204, cooler body 204 upper flanges 204 and flange end cap 202 connected by bolt 211, flange end cap 202 has suspension ring 201, cooler body 204 outside is sheathed There is electrical heat tracing layer 216, and be provided with mixed gas entrance 212, mixed gas outlet 207, in the middle of cooler body 204 inner chamber Setting coldplate 205, is coolant flow channel 206 in coldplate 205, and coolant flow channel 206 is circulated with the coolant in flange end cap 202 Import, outlet；Cooler body 204 lower end by flange 208 connect liquid collecting bucket 213, liquid collecting bucket 213 lower end again by Flange 209 seals, and arranges discharging tube 210.

In the course of work, when entering cooler by the mixed gas containing gasification macromolecular, gaseous macromolecular solidification Zero point is high, and when through 160 DEG C of cooler, rapid condensation becomes solid.Because gas flow rate is fast, and due to flange connection The cooler body 204 connecing is that have electrical heat tracing layer 216 to be actively incubated, and little with the mixed gas temperature difference, therefore, molecule is cold Que Qi center coldplate 205 contact is frozen into solid, and cooler inwall is adhered in condensation from level to level, blocks cooler.From level to level Contact solidification attachment dirt, close structure, quality are solid.Blocked cooler changes the flow regime of mixing gas simultaneously Cooler is made to lose the job function, until blocking cooler gas runner.So that vacuum system can not be worked, affect production run.

Producing for production line downstream process provides reliable guarantee, and often production line to be stopped is blocked by contamination by machine maintenance cleaning Inside cooler, the inside center coldplate 205 due to top flange end cap 202 and cooler is connected, and structure bulky is not readily removable Unload.Have pull-out using hoist, but have close structure, big adhesive force pollutant contact solidification attachment, also can be difficult to pull out. Therefore dismantle cleaning cooler from cooler top flange end cap 202 time-consuming, laborious.So, machine maintenance, can only typically in cleaning Pull down the cooler liquid collecting bucket 213 of heaviness, cleared up from bottom.The cooler bottom pulling down cooler liquid collecting bucket 213 is liftoff Highly little, it is shorter than the long and narrow gas flow of cooler, it is impossible to be cleaned to cooler when therefore being cleared up with simple tools such as round steel Long and narrow gas flow top.Machine repair personnel can only be increased clear with thin round steel or thin band iron with the simple tool that hand can bend by force Reason length, enables cleaning to reach cooler long and narrow gas flow top.But will with these intensity differences, having many bends or curves simple tool Smash the solid pollutant of close structure, quality to pieces, the long and narrow gas flow of the clean cooler of thorough cleaning is highly difficult, therefore machine The speed repairing cleaning cooler is slow, efficiency is very low.Again because pulling down the cooler bottom terrain clearance of cooler liquid collecting bucket 213 Little, machine repair personnel cannot directly visually observe in cleaning, can only be with flashlight from the cooler pulling down cooler liquid collecting bucket 213 Irradiated, when observing torch light irradiation at the mixed gas entrance 212 that cooler is opened, when through gas flow Light leak situation come to judge cooler cleaning degree, therefore, cooler is cleaned out degree and cannot directly be grasped.So in machine maintenance After cleaning cooler, the long and narrow gas flow of cooler is not clean, and simply gas flow is unimpeded.Such cooler exists During cleaning, appear its design defect, lacked effective cleaning, observe working space.The speed of cleaning cooler is slow, efficiency Low, pay off unclean.PET production line has two auxiliary extruders, and every auxiliary extruder has a set of pumped vacuum systems, and often set is taken out very Empty set system has two sets of cooling systems again, and a production line has four coolers.In daily machine maintenance cleaning cooler, four coolings Device all can have different degrees of blocking, and therefore, four coolers need to be cleared up simultaneously.During cleaning cooler, time-consuming, laborious, one Machine repair personnel clears up a cooler needs 23 hours, even if four coolers of four machine repair personnels are cleared up also be sought after simultaneously 23 hours, could clear up and complete.The cooler of cleaning vacuum system must stop raw line, and PET production line day shift only has four machines Repair personnel, the machine maintenance human resources of occupancy are many and clearance time is long, increase downtime, affect production efficiency.

With reference to the cooler construction of the present utility model shown in Fig. 3 and Fig. 4, include cooler body 303, by flange with Bolt 311 is connected to the flange end cap 302 of cooler body 303 upper end, equipped with suspension ring 301 in flange end cap 302, by flange 308 liquid collecting buckets 313 being connected to cooler body 303 lower end, liquid collecting bucket 313 lower end is sealed by flange 309, and arranges discharge opeing Pipe 310.

Described cooler body 303 is the double cylinder being made up of internal layer 319 and outer layer 316, in cooler body 303 For cavity；Gap between described internal layer 319 and outer layer 316 constitutes cooling water jecket 304, and outer in cooler body 303 It is respectively equipped with the first cooling water inlet 321 connecting with cooling water jecket 304 and the first coolant outlet 322, cooling on layer 316 Water leg 304 instead of original electrical heat tracing layer 216, and comprehensive cooling lifts cooling effect.

The mixed gas being additionally provided with connection cooler body 303 internal cavity on the outer layer 316 of described cooler body 303 enter Mouth 312 and mixed gas outlet 307.The center of described cooler body 303 is provided with coldplate 305, sets in described coldplate 305 There are cooling water flow conduits 306.

The straight line instillation hole slot 324 of upper end edge coldplate 305 edge setting of described cooler body 303 internal cavity, 325, and the circular arc instillation hole slot 323,326 of the edge setting along internal layer 319 wall（Specifically can refer to shown in Fig. 5）, instillation hole slot 323rd, 324,325,326 lower end is connected to instillation guider 327,328,329,330；Instillation guider is used for making cleaning Liquid uniformly flows through cooling work face.

With reference to shown in Fig. 4, flange end cap 302 is correspondingly provided with connect with the hole slot 323,324,325,326 that instils droplet Liquid injection port 317,318（In the present embodiment, practice can increase and decrease as needed taking two drip solution mouths as a example）, and cooling water flow conduits Second cooling water inlet 314 of 306 connections and the second coolant outlet 315.

With reference to the of the present utility model a kind of comprehensive cooling negative pressure instillation wet type self-cleaning chiller system shown in Fig. 6, Including cooler 401, filter 402, pump 403 and liquid level box 404.

Described cooler discharging tube 310 is connected with filter 402 by the first magnetic valve 411, and described filter 402 passes through The import pumping into magnetic valve 412 with pump 403 is connected, and the outlet of described pump 403 is by pumping out magnetic valve 413 with liquid level box 404 even Connect；Described liquid level box 404 passes through to connect the inner space of magnetic valve 416 and cooler 401；The outlet of liquid level box 404 is divided into two Road, is led up to overflow magnetic valve 415 and is connected with filter 402, separately leads up to instillation magnetic valve 417 and instillation Flow-rate adjustment Valve 421,422 is connected with the two drip solution mouths 317,318 in flange end cap 302 respectively.

Described filter 402 is provided with release ball valve 431 and Blowoff ball valve 432, described pumps into magnetic valve 412 and pump 403 Between pipeline on connect with by liquid electromagnetic valve 419 by liquid pipe；Described liquid level box 404 is provided with and unloads pressure electromagnetic valve 414 He Liquid level gauge 405.Cooling water inlet 314 in the flange end cap 302 of cooler 401 connects cooling water inlet pipe by ball valve 418.

Utility model works process is as follows：

Negative pressure wet type self-cleaning：Pass through the instillation hole of the upper end of cooler 401 inside center coldplate 305 in routine work Groove 323,324,325,326, with instillation guider 329,330,331,332, cools down to coldplate 305 and periphery internal layer 319 wall Instillation liquid on water leg 304 inwall, keeps coldplate 305, internal layer 319 wall to moisten, instillation liquid selective triethylene glycol, triethylene glycol Gasification point, up to 285 DEG C, will not affect PET film production line auxiliary extruder vacuum system negative pressure work because vaporizing volume expands Condition standard, during using negative pressure wet type self-cleaning method, when vaporized molecules are in cooler center coldplate 305 contact solidification, by Contact so as to become sposh shape in the dust that moistening coldplate 305 solidifies with vaporized molecules, it is cold because Action of Gravity Field falls into But device liquid collecting bucket 313.

Manner of cleaning up in order to coordinate above-mentioned cooler can be smoothed out, and needs overall negative pressure cleaning system to realize.

Negative pressure wet type self-cleaning：In the normal production and application of PET film production line, when the liquid collecting bucket 313 falling into cooler Dust, dirt and instillation liquid filter 402 is entered by the first magnetic valve 411 that discharging tube 310 connects and filters, go to decontaminate Thing, dirt is discharged by Blowoff ball valve 432, and the instillation liquid after filtration enters pump by pumping into magnetic valve 412, through pump 403 and pump Go out magnetic valve 413 and pump into liquid level box 404.

In order to keep vacuum system negative pressure operating mode standard, when pumping into, to guarantee closing respective valve.Close when pumping into Instillation magnetic valve 417, liquid level box 404 connect magnetic valve 416, cooler 401 and the first of filter 402 with cooler 401 Magnetic valve 411, opens simultaneously and pumps into magnetic valve 412, pump out magnetic valve 413, unload pressure electromagnetic valve 414 and liquid level box 404 and filter The overflow magnetic valve 415 of device 402 connection.Until liquid level box 404 is full by pump, the process that pumps into of negative pressure liquid instillation system terminates； During continuous drip, close and pump into magnetic valve 412, pump out magnetic valve 413, unload pressure electromagnetic valve 414 and liquid level box 404 and filter The overflow magnetic valves 415 of 402 connections, open the first magnetic valve 411 of cooler 401 and filter 402, liquid level box 404 with cold But the connection magnetic valve 416 of device 401, makes liquid level box 404 keep identical negative pressure, the drip solution in liquid level box 404 with cooler 401 Body passes through instillation magnetic valve 417, instillation flow control valve 421,422 continuous drips in center coldplate 305 and periphery by gravity On internal layer 319 wall.

In order to keep vacuum system negative pressure operating mode standard, pump into and instil conversion when, in order to reduce to vacuum System negative pressure affect, wherein unload pressure electromagnetic valve 414, overflow magnetic valve 415, connection magnetic valve 416 be installed on liquid level box 404 Near position, reduces the length of pipeline, it is to avoid during the conversion pumping into and instiling, gas enters vacuum system.

When drip solution is not enough, by drip solution is supplemented by liquid electromagnetic valve 419.

Equally in order to keep vacuum system negative pressure operating mode standard, filtered by filter 401, remove dirt, dirt is by ball When valve 432 is discharged, should select to carry out during PET film production line stop, release ball valve 431 when needing, can be opened.

The above, the only preferable specific embodiment of the utility model, but the utility model protection domain does not limit to In this, any those familiar with the art in the technical scope that the utility model discloses, the change that can readily occur in Change or replace, all should cover within protection domain of the present utility model.Therefore the utility model protection domain is with claim The protection domain of book is defined.

Claims (5)

1. a kind of comprehensive cooling negative pressure instillation wet type self-cleaning chiller system is it is characterised in that include cooler, filtration Device, pump and liquid level box；Described cooler includes cooler body, is connected to the flange end of cooler body upper end by flange Lid, and the liquid collecting bucket being connected to cooler body lower end by flange；Described cooler body is to be made up of internal layer and outer layer Double cylinder, be provided with cavity in cooler body；Gap between described internal layer and outer layer constitutes cooling water jecket, and in The first cooling water inlet being connected with cooling water jecket and the first coolant outlet, institute are respectively equipped with the outer layer of cooler body State the mixed gas entrance that connection cooler body internal cavity is additionally provided with the outer layer of cooler body and mixed gas outlet, institute The center stating cooler body is provided with coldplate, is provided with cooling water flow conduits in described coldplate；Described cooler body internal cavity Upper end edge coldplate and inner layer wall edge setting instillation hole slot, described instillation hole slot lower end is connected with instillation guider； The second cooling water that the drip solution mouth being connected with the hole slot that instils connected with cooling water flow conduits is correspondingly provided with described flange end cap enter Mouth and the second coolant outlet；Described liquid collecting bucket lower end is provided with discharging tube；

Described discharging tube is connected with filter by the first magnetic valve, and described filter is connected with the import of pump by pumping into magnetic valve Connect, the outlet of described pump is connected with liquid level box by pumping out magnetic valve；Described liquid level box passes through to connect magnetic valve and cooler master The inner space of body；The outlet of the second liquid level box is divided into two-way, leads up to overflow magnetic valve and is connected with filter, another a-road-through Cross instillation magnetic valve and instillation flow control valve to be connected with the drip solution mouth in flange end cap.

2. a kind of comprehensive cooling negative pressure instillation wet type self-cleaning chiller system according to claim 1, its feature exists In described flange end cap top is provided with suspension ring.

3. a kind of comprehensive cooling negative pressure instillation wet type self-cleaning chiller system according to claim 1, its feature exists In described filter is provided with release ball valve and Blowoff ball valve.

4. a kind of comprehensive cooling negative pressure instillation wet type self-cleaning chiller system according to claim 1, its feature exists In being connected with band by liquid electromagnetic valve by liquid pipeline on the described pipeline pumping between magnetic valve and pump.

5. a kind of comprehensive cooling negative pressure instillation wet type self-cleaning chiller system according to claim 1, its feature exists In described liquid level box is provided with and unloads pressure electromagnetic valve.