CN110868020A

CN110868020A - Compound plate type fin-penetrating air cooler

Info

Publication number: CN110868020A
Application number: CN201911333545.3A
Authority: CN
Inventors: 张玉俊
Original assignee: Harbin Jingfang Electrical Equipment Technology Co Ltd
Current assignee: Harbin Jingfang Electrical Equipment Technology Co Ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-03-06

Abstract

The invention discloses a double-plate type fin-penetrating air cooler, which comprises a double-plate type tube-bearing plate, a water leakage alarm device, a cooling core group, a supporting side plate, a water tank, a water inlet pipe, a water outlet pipe, an exhaust device and a standard component for fastening.

Description

Compound plate type fin-penetrating air cooler

Technical Field

The invention relates to the field of cooling equipment, in particular to a compound plate type fin-penetrating air cooler.

Background

The large generator is one of the main devices of the national power grid, is a direct producer of electric energy, and is also the most basic power equipment in modern industry, and the development of the large generator is closely linked with the development of the whole national economy, especially the power industry. The motor is a rotary electric machine, it changes the electric energy into the mechanical energy, it mainly includes an electromagnet winding or distributed stator winding used for producing the magnetic field and a rotary armature or trochanter, under the effect of the rotating magnetic field of the stator winding, it has current to pass and make it rotate under the effect of magnetic field in the effective side of the stator winding, according to the principle of reversibility of the electrical machinery, if the electrical machinery does not have any change on its structure, the electrical machinery can be used as the electrical machinery, can also be used as the generator. The electric energy is converted into mechanical energy, usually, the work-doing part of a motor does rotary motion, and the motor is called a rotor motor; there are also linear motors, called linear motors. The motors can provide power in a wide range from milliwatts to kilowatts. Machine tools and water pumps need to be driven by a motor; electric locomotives, elevators, require motor traction. Electric fans, refrigerators, washing machines and even various motor toys in family life can not be driven by the motor. Electric motors have been used in various aspects of modern society. The diesel generator set is a small power generating equipment, and is a power machine using diesel oil as fuel and using diesel engine as prime mover to drive generator to generate power. The whole set of unit generally comprises a diesel engine, a generator, a control box, a fuel tank, a storage battery for starting and controlling, a protection device, an emergency cabinet and the like. The whole body can be fixed on a foundation for positioning and use, and can also be arranged on a trailer for mobile use. The diesel generator set belongs to discontinuous operation power generation equipment, and if the continuous operation exceeds 12 hours, the output power is lower than the rated power by about 90 percent. Although the power of the diesel generating set is lower, the diesel generating set is small in size, flexible, portable, complete in matching and convenient to operate and maintain, so that the diesel generating set is widely applied to mines, railways, field construction sites, road traffic maintenance, factories, enterprises, hospitals and other departments as a standby power supply or a temporary power supply. During the operation of a motor and a generator, due to the existence of current and a magnetic field, iron loss and copper loss are generated certainly, the loss is transmitted to a winding and an iron core in a hot mode, heat can be generated, the temperature born by the device can be considered in a range when the device is designed, in order to prevent overheating and supercooling, an air cooler is often used in cooperation with the device, the air cooler plays a good cooling effect in the whole process, so that the heat of the generator can not be so high, the generator can normally operate, and the service life of the generator is prolonged.

The generator during operation often has copper loss and iron loss, and along with the work of generator, the capacity of generator is bigger and bigger, and the generator can produce a large amount of heats at the during operation, and the temperature of iron core and coil can rise gradually. When the motor unit operates, the heating value is very large, high temperature can cause damage to unit components, the operating condition of the generator can be influenced, the internal temperature of the generator unit is reduced in order to prolong the service life of the generator, the insulating aging speed of the metal hose compensator and the coil is reduced, and the temperature of the coil cannot exceed a certain standard. Therefore, measures must be taken to timely remove the heat generated by the coil and the iron core so as to maintain the insulation temperature of the coil not to exceed the specified value. Generally, a whole set of air cooler is installed on the outer wall of a stator of a large and medium-sized hydraulic generator, the quantity is generally 6-16, and the air cooler cools heat inside the generator. Therefore, when the generator generates electricity, a corresponding cooling device is required to be configured for cooling the generator, so that the generator is prevented from being out of order, and the service life of the generator is prolonged.

Coolers are a class of heat exchange devices that cool a fluid. Currently, there are various types of coolers, and water or air is generally used as a coolant to remove heat, and the coolers can be mainly classified into a shell and tube cooler, a plate cooler and an air-cooled cooler. The cooler is a heat exchange device commonly adopted by the industrial departments of metallurgy, chemical industry, energy, traffic, light industry, food and the like. The air cooler is called air cooler for short, uses water as cooling medium, and can be used as cooler or condenser. The air cooler mainly comprises a tube bundle, a bracket and a cooling core group. The air cooler cooling medium flows in the pipe to cool the hot air inside the generator. The hot air is blown out by the rotation of the generator rotor, cooled by the air cooler and then returned to the interior of the generator to cool the generator. The type and material of the tube bundle greatly affect the performance of the air cooler. Because the air side has a low heat transfer coefficient, fins are often added to the tubes to increase heat transfer area and fluid turbulence and reduce thermal resistance. The air cooler mostly adopts radial fins. Light pipes with an outer diameter of 19mm, low-fin pipes with fins of 12.5mm in height and high-fin pipes with fins of 16mm in height or whole through-fin type radiating fins are generally adopted in the air cooler. Finned tubes are the core elements of air coolers, the form and material of which directly affect equipment performance. The pipe can be made of carbon steel, copper, aluminum, stainless steel and the like; the fin material is determined according to the use environment and the manufacturing process, most of the fin material adopts industrial pure aluminum, and copper or stainless steel is also adopted under the condition that the corrosion resistance requirement is high or the manufacturing process condition is special. The fins may be arranged in a transverse or longitudinal direction. The basic form of the finned tube is: wound sheet type, inserted sheet type, rolled sheet type, sleeved sheet type, welded sheet type, oval tube type, turbulent flow type (including spoke type, slotted type, corrugated type and the like). The pipe box mainly has a flange type, a pipe blocking type and a collecting pipe type. Generally, the former is used at medium and low pressure, and the latter two are used at high pressure. To accommodate thermal expansion of the tube bundle, an end header is not fixed and allows for displacement along the length of the tube. Axial fans are generally used as the fans. The ventilation has two modes of blowing and induced draft, one is a blowing mode: the air flows through the ventilator and then into the tube bundle. Secondly, the induced air formula: the air flows through the tube bundle and into the ventilator. The former has more economical operation cost, and the generated turbulent flow is beneficial to heat transfer and is more used. The air flow distribution of the air conditioner is uniform, which is beneficial to the accurate control of temperature and has small noise, and the air conditioner is the development direction. The temperature of the hot fluid outlet is mainly controlled by adjusting the air quantity passing through the tube bundle, namely adjusting the inclination angle of the blades, the rotating speed of the ventilator, the opening degree of the shutter and the like. For the fluid which is easy to condense and freeze in winter, the temperature of the fluid outlet can be adjusted by adopting a hot air circulation or steam heating method. In order to strengthen the heat transfer effect of the air cooler, water can be sprayed in the inlet air for humidification. This both reduces the air temperature and increases the heat transfer coefficient. The air cooler can save a large amount of industrial water, reduce environmental pollution and reduce capital cost. Especially in the water-deficient area, air cooling is used for replacing water cooling, so that the contradiction of insufficient water source can be alleviated. The air cooler is used for cooling air with higher temperature from the generator by using cooling water and then sending the air into the generator. In fact, when the generator works, the generated heat is taken away by cooling water, and the air only plays a role as a medium. The installation air cooler prolongs the life-span of generator, improves the work efficiency of generator.

At present, when a hydro-generator fin-penetrating air cooler operates, heat medium air in a generator passes through a window on the outer wall of a stator and passes through the cooler due to rotation of a rotor of the hydro-generator. Cold medium water enters from the water inlet, absorbs heat released by hot medium air in the flowing process in the cooling pipe, and then is baffled to the water outlet to be discharged, and finally the purpose of keeping the rated working temperature of the working medium is achieved. In the whole operation process, if water leakage occurs at the joint of the two ends of the cooling water pipe of the cooler and the pipe bearing plate, the water leakage is difficult to find in time, if the water leakage is not eliminated in time, the water leakage flows into the interior of the hydraulic generator, the line group short circuit is caused, and great harm is caused to the whole hydraulic generator.

The leakage of the fin-through air cooler is caused by three reasons: (1) congenital manufacturing quality problems, such as inner wall damage and shrinkage cavity and uneven thickness when a copper pipe is drawn, which cause the expansion mouth damage or partial expansion of a manual expansion pipe when the piece-through air cooler is manufactured; (2) the mechanical damage and expansion of the acquired nature are caused by collision, smashing and scraping in the processes of manufacturing, transportation, maintenance, hoisting and cleaning and vibration in operation; (3) the abrasion of cooling medium in the using process, the damage of the flow speed increase to the pipe wall when the cooler is half blocked and half communicated, or the galvanic corrosion of the red copper pipe, the dezincification corrosion of the brass pipe and the like. In addition, the cooling pipes of the through-fin air cooler of the hydraulic generator are large in quantity and large in concentration, and a plurality of dense leakage sources naturally increase the leakage probability of the through-fin air cooler. The fin-penetrating air cooler generates water leakage which flows into the interior of the hydraulic generator to cause short circuit of the wire set, and the damage to the generator is immeasurable.

Disclosure of Invention

The invention aims to provide a lifting plate type fin-penetrating air cooler, which can effectively monitor the water leakage condition at the joint of a cooler cooling water pipe and a pipe bearing plate in real time besides all the working characteristics of a conventional fin-penetrating air cooler in the operation process of equipment.

The purpose of the invention is realized by the following technical scheme: a compound plate type fin-penetrating air cooler comprises a compound plate type tube bearing plate, a water leakage alarm device, a cooling core group, a supporting side plate, a water tank, a water inlet pipe, a water outlet pipe, an exhaust device and a standard component for fastening, wherein the standard component comprises a bolt, a nut, a flat cushion and a spring cushion, the compound plate type tube bearing plate comprises a main tube bearing plate and an auxiliary tube bearing plate, the compound plate type tube bearing plates are arranged on the left side and the right side of the fin-penetrating air cooler, the auxiliary tube bearing plate is arranged on one side close to the fin-penetrating air cooler, the main tube bearing plate is arranged on one side far away from the fin-penetrating air cooler and is positioned on the outer side of the auxiliary tube bearing plate, the cooling core group is arranged in the middle of the auxiliary tube bearing plate and comprises a plurality of cooling water pipes and cooling fins, the cooling water pipes penetrate through the plurality of cooling fins, and the cooling fins are punched and formed by a punching machine tool, the cooling through sheets are arranged in parallel, the cooling water pipe and the cooling through sheets are arranged vertically, the left end of the cooling water pipe is arranged between the compound plate type pipe bearing plates, the top ends and the bottom ends of the compound plate type pipe bearing plates at two sides are fixedly connected through supporting side plates by bolts, a flat pad and a spring pad are arranged between the bolts and the supporting side plates, a plurality of pipe holes are arranged on the main pipe bearing plate, the cooling through sheets are provided with pipe holes identical to the main pipe bearing plate, the cooling water pipe penetrates through the plurality of pipe holes, the positions of the pipe holes and the cooling water pipe are in one-to-one correspondence, the sizes of the auxiliary pipe bearing plate and the main pipe bearing plate are identical, the auxiliary pipe bearing plate is provided with the pipe holes in one-to-one correspondence with the main pipe bearing plate, the middle part of the auxiliary pipe bearing plate is provided with a groove, and after the auxiliary pipe bearing plate is assembled with the main pipe bearing plate, the groove is arranged at the joint, the water leakage alarm device is arranged on the detection holes of the auxiliary tube bearing plate, the number of the water leakage alarm devices is the same as that of the detection holes, the detection holes are used for installing water leakage alarm device probes to the closed space, and the drain holes are used for draining water.

Further, the water tank include business turn over water tank, backward flow water tank, business turn over water tank, backward flow water tank set up in the threading air cooler left and right sides, business turn over water tank install and hold the tube sheet left side at the doubler plate formula, backward flow water tank install and hold the tube sheet right side at the doubler plate formula, backward flow water tank and business turn over water tank adopt plate welding, punching press lathe stamping forming or whole board milling shaping, backward flow water tank and business turn over water tank and doubler plate formula hold the tube sheet the assembly method for the bolt closes, backward flow water tank and business turn over water tank and doubler plate formula hold the tube sheet and adopt sealed the pad to seal, the sealed or high accuracy stagnant water groove of recess O type sealing washer seals.

Furthermore, the water leakage alarm device is a line type water leakage alarm device.

Furthermore, the cooling water pipe and the main pipe bearing plate and the auxiliary pipe bearing plate are assembled in an expansion joint mode, a welding mode or an expansion joint and a welding mode.

Furthermore, the number and the positions of the pipe holes of the auxiliary pipe supporting plate and the main pipe supporting plate are set according to the requirement of the fin-penetrating air cooler.

Furthermore, exhaust devices are arranged at the top end and the bottom end of the water inlet and outlet water tank and the water return water tank, and the exhaust devices are automatic exhaust valves or manual exhaust valves.

Further, business turn over water tank left side both ends all device have the drain valve about, the drain valve on be equipped with supporting flange, supporting flange between be equipped with flange gasket, supporting flange pass through bolt, nut fixed, be equipped with flat pad and spring pad between bolt, the nut.

Furthermore, a plurality of small holes which are uniformly distributed are formed in the peripheral edges of the supporting side plates and the compound plate type tube bearing plate and used for fixing bolts.

The invention has the beneficial effects that:

the invention aims to provide a multi-plate type fin-penetrating air cooler which comprises a multi-plate type tube-bearing plate, a water leakage alarm device, a cooling core group, a supporting side plate, a water tank, a water inlet pipe, a water outlet pipe, an exhaust device and a standard component for fastening.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without any creative effort.

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

FIG. 2 is a bottom plan view of the present invention in its entirety;

FIG. 3 is a schematic view of the overall configuration of the cooling core pack of the present invention;

FIG. 4 is a schematic view of the overall structure of the primary backing plate of the present invention;

FIG. 5 is a schematic view of the overall structure of the secondary tube-supporting plate of the present invention

FIG. 6 is a side schematic view of a secondary backing plate of the present invention.

Reference numerals

1. The cooling core group, 2, main pipe-bearing plate, 3, auxiliary pipe-bearing plate, 4, supporting side plate, 5, cooling water pipe, 6, cooling piece, 7, exhaust device, 8, water inlet and outlet tank, 9, water leakage alarm device, 10, groove O-shaped sealing ring, 11, water inlet pipe, 12, water outlet pipe, 13, pipe hole, 14, groove, 15, detection hole, 16, drain hole, 17, small hole, 18, and backflow water tank.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Example 1

As shown in fig. 1, 2, 3, 4, 5, 6, the double plate type fin-penetrating air cooler comprises a double plate type tube bearing plate, a water leakage alarm device 9, a cooling core group 1, a supporting side plate 4, a water tank, a water inlet pipe 11, a water outlet pipe 12, an exhaust device 7 and standard components for fastening combination, wherein the standard components comprise bolts, nuts, flat pads and spring pads, the double plate type tube bearing plate comprises a main tube bearing plate 2 and an auxiliary tube bearing plate 3, the double plate type tube bearing plates are arranged on the left side and the right side of the fin-penetrating air cooler, the auxiliary tube bearing plate 3 is arranged on one side close to the fin-penetrating air cooler, the main tube bearing plate 2 is arranged on one side far away from the fin-penetrating air cooler and is positioned on the outer side of the auxiliary tube bearing plate 3, the cooling core group 1 is arranged in the middle of the auxiliary tube bearing plates 3 on the two sides, and the cooling core group 1 comprises a plurality of cooling water pipes 5, Cooling fins 6, the cooling water pipe 5 passes through a plurality of cooling fins 6, and the material of the cooling water pipe 5 can adopt T2 red copper, B10 white copper or 304 stainless steel; the cooling through sheet 6 is formed by punching a punching machine, the cooling through sheet 6 can be made of L2 aluminum sheets and T2 copper sheets, the cooling through sheet 6 is arranged in parallel, the cooling water pipe 5 and the cooling through sheet 6 are arranged perpendicularly, the left end of the cooling water pipe 5 is arranged between the compound plate type tube bearing plates, the top ends and the bottom ends of the compound plate type tube bearing plates at two sides are fixedly connected through supporting side plates 4 by bolts, the supporting side plates 4 are made of Q235 steel, Q345 steel or 304 stainless steel, all the components are formed by welding, flat pads and spring pads are arranged between the bolts and the supporting side plates 4, a plurality of pipe holes 13 are arranged on the main tube bearing plate 2, the cooling through sheet 6 is provided with pipe holes 13 identical to the main tube bearing plate 2, the cooling water pipe 5 penetrates through the plurality of pipe holes 13, and the positions of the pipe holes 13 and the cooling water pipe 4 are in one-to one correspondence, the auxiliary pipe bearing plate 3 is the same as the main pipe bearing plate 2 in size, the auxiliary pipe bearing plate 3 is provided with pipe holes in one-to-one correspondence with the main pipe bearing plate 2, a groove 14 is formed in the middle of the auxiliary pipe bearing plate 3, after the auxiliary pipe bearing plate 3 is assembled with the main pipe bearing plate 2, the groove 14 is formed in the joint of the easily-leaked cooling water pipe 5 and the main pipe bearing plate 2, an isolated water path and an external closed space are formed, the groove 14 is in a shape like a Chinese character 'hui', the auxiliary pipe bearing plate 3 and the main pipe bearing plate 2 are sealed through a groove O-shaped sealing ring 10, round holes are formed in the top end and the bottom end of the auxiliary pipe bearing plate 3, and the round holes are 2-3 holes and used for installing a probe of the water leakage alarm device 9 into the closed space and draining water. The circular holes comprise detection holes 15 and drain holes 16, the drain holes 16 are arranged at the bottom end of the auxiliary pipe bearing plate 3, the detection holes 15 are arranged at the top end and the bottom end of the auxiliary pipe bearing plate 3 and are used for detecting whether the compound pipe bearing plate leaks water or not, the water leakage alarm devices 9 are arranged on the detection holes 15 of the auxiliary pipe bearing plate 3, the number of the water leakage alarm devices 9 is the same as that of the detection holes 15, the water leakage alarm devices 9 can be arranged more according to needs to prevent false alarm or false alarm, the detection holes 15 are used for installing probes of the water leakage alarm devices 9 into a closed space, and the drain holes 16 are used for draining water.

Example 2

As shown in fig. 1 and 2, the water tank comprises an inlet and outlet water tank 8 and a return water tank 18, the inlet and outlet water tank 8 and the return water tank 18 are arranged on the left and right sides of the fin-penetrating air cooler, the inlet and outlet water tank 8 is arranged on the left side of the compound plate type tube bearing plate, a water tank sealing gasket is arranged between the inlet and outlet water tank 8 and the compound plate type tube bearing plate, the return water tank 18 is arranged on the right side of the compound plate type tube bearing plate, and a water tank sealing gasket is arranged between the return water tank 18 and the compound plate type tube bearing plate. The backward flow water tank 18 and the 8 materials of business turn over water tank can be Q235 steel, Q345 steel or 304 stainless steel, adopt plate welding, punching press lathe stamping forming or whole board milling shaping, backward flow water tank 18 and business turn over water tank 8 and compound board formula to hold the assembly mode of tube sheet for the bolt closes, backward flow water tank 18 and business turn over water tank 8 and compound board formula hold the tube sheet and adopt sealed the pad to seal, 10 or high accuracy sealing up groove seal of sealed O type sealing washer seal or high accuracy sealing up groove seal. The water inlet and outlet tank 8 is provided with a water inlet pipe 11, a water outlet pipe 12 and a matched flange, wherein the water inlet pipe 11, the water outlet pipe 12 and the matched flange are made of Q235 steel, Q345 steel or 304 stainless steel materials.

Example 3

As shown in fig. 1, 2, 3, 5 and 6, the water leakage alarm device 9 is a line type water leakage alarm device.

Example 4

As shown in fig. 1, 2 and 3, the cooling water pipe 5 is assembled with the main tube supporting plate 2 and the auxiliary tube supporting plate 3 by expansion joint, welding or expansion joint and welding.

Example 5

As shown in fig. 1, 2, 4, 5 and 6, the number and positions of the pipe holes 13 of the secondary tube supporting plate 3 and the primary tube supporting plate 2 are set according to the requirement of the fin-through air cooler.

Example 6

As shown in fig. 1 and 2, the top and bottom ends of the inlet and outlet water tank 8 and the return water tank 18 are respectively provided with an air exhaust device 7, and the air exhaust device 7 is an automatic air exhaust valve or a manual air exhaust valve.

Example 7

As shown in fig. 1 and 2, the upper end and the lower end of the left side of the water inlet and outlet tank 8 are provided with drain valves, the drain valves are provided with matched flanges, flange sealing gaskets are arranged between the matched flanges, the matched flanges are fixed through bolts and nuts, and flat gaskets and spring gaskets are arranged between the bolts and the nuts.

Example 8

As shown in fig. 1 and 2, a plurality of small holes 17 are uniformly distributed on the peripheral edges of the supporting side plate 4 and the double-plate type tube bearing plate for bolt fixing.

The working principle is as follows:

as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, the double-plate fin-penetrating air cooler comprises a double-plate pipe bearing plate, a water leakage alarm device 9, a cooling core group 1, a supporting side plate 4, a water tank, a water inlet pipe 11, a water outlet pipe 12, an exhaust device 7 and a standard component for fastening combination, wherein a groove 14 is arranged in the middle part of the auxiliary pipe bearing plate 3, after being assembled with the main pipe bearing plate 2, the groove 14 is arranged at the joint of the cooling water pipe 5 which is easy to leak and the main pipe bearing plate 2, so that a closed space for isolating a water path and the outside is formed, the groove 14 is in a shape of Chinese character hui, the auxiliary pipe bearing plate 3 and the main pipe bearing plate 2 are sealed by a groove O-shaped sealing ring 10, and round holes are formed in the top end and the bottom end of the auxiliary pipe bearing plate 3, and the number of the round holes is 2-3 for installing a probe of the water leakage alarm device 9 to a closed space and draining water. The circular holes comprise detection holes 15 and drain holes 16, the drain holes 16 are arranged at the bottom end of the auxiliary pipe bearing plate 3, the detection holes 15 are arranged at the top end and the bottom end of the auxiliary pipe bearing plate 3 and are used for detecting whether the compound pipe bearing plate leaks water or not, the water leakage alarm devices 9 are arranged on the detection holes 15 of the auxiliary pipe bearing plate 3, the number of the water leakage alarm devices 9 is the same as that of the detection holes 15, the water leakage alarm devices 9 can be arranged more according to needs to prevent false alarm or false alarm, the detection holes 15 are used for installing probes of the water leakage alarm devices 9 into a closed space, and the drain holes 16 are used for draining water. The leakage water alarm device 9 is not provided by a conventional hydro-generator fin-penetrating air cooler, can well monitor the water leakage condition of the cooler in real time, once the leakage phenomenon occurs at the joint of the cooling water pipe 5 of the cooler and the multi-plate type pipe-supporting plate, the leakage water alarm device 9 can send a signal to a central control room, so that the problem of leakage water can be solved timely and rapidly, the running safety of the motor is improved, and the leakage water alarm device 9 can be arranged at multiple positions to prevent the alarm leakage and the alarm failure.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and the technical contents of the present invention are all described in the claims.

Claims

1. Compound plate-type fin-penetrating air cooler is characterized in that: comprises a compound plate type pipe bearing plate, a water leakage alarm device, a cooling core group, a supporting side plate, a water tank, a water inlet pipe, a water outlet pipe, an exhaust device and a standard component for fastening, wherein the standard component comprises a bolt, a nut, a flat gasket and a spring gasket, the side plate comprises an upper side plate and a lower side plate, the compound plate type pipe bearing plate comprises a main pipe bearing plate and an auxiliary pipe bearing plate, the compound plate type pipe bearing plate is arranged at the left side and the right side of the fin penetrating air cooler, the auxiliary pipe bearing plate is arranged at one side close to the fin penetrating air cooler, the main pipe bearing plate is arranged at one side far away from the fin penetrating air cooler and is positioned at the outer side of the auxiliary pipe bearing plate, the cooling core group is arranged at the middle part of the auxiliary pipe bearing plate and comprises a plurality of cooling water pipes and cooling through pieces, the cooling water pipes penetrate through the plurality of cooling through pieces, and the cooling through pieces are formed by punching a punching machine tool, the cooling through sheets are arranged in parallel, the cooling water pipe and the cooling through sheets are arranged vertically, the left end of the cooling water pipe is arranged between the compound plate type pipe bearing plates, the top ends and the bottom ends of the compound plate type pipe bearing plates at two sides are fixedly connected through supporting side plates by bolts, a flat pad and a spring pad are arranged between the bolts and the supporting side plates, a plurality of pipe holes are arranged on the main pipe bearing plate, the cooling through sheets are provided with pipe holes identical to the main pipe bearing plate, the cooling water pipe penetrates through the plurality of pipe holes, the positions of the pipe holes and the cooling water pipe are in one-to-one correspondence, the sizes of the auxiliary pipe bearing plate and the main pipe bearing plate are identical, the auxiliary pipe bearing plate is provided with the pipe holes in one-to-one correspondence with the main pipe bearing plate, the middle part of the auxiliary pipe bearing plate is provided with a groove, and after the auxiliary pipe bearing plate is assembled with the main pipe bearing plate, the groove is arranged at the joint, the water leakage alarm device is arranged on the detection holes of the auxiliary tube bearing plate, the number of the water leakage alarm devices is the same as that of the detection holes, the detection holes are used for installing water leakage alarm device probes to the closed space, and the drain holes are used for draining water.

2. The doubler plate-type fin-piercing air cooler according to claim 1, characterized in that: the water tank include business turn over water tank, backward flow water tank, business turn over water tank, backward flow water tank set up in the poling air cooler left and right sides, business turn over water tank install in compound board formula and hold the tube sheet left side, backward flow water tank install in compound board formula and hold the tube sheet right side, backward flow water tank and business turn over water tank adopt plate welding, punching press lathe stamping forming or whole board milling shaping, backward flow water tank and business turn over water tank and compound board formula hold the tube sheet the assembly mode for the bolt closes, backward flow water tank and business turn over water tank and compound board formula hold the tube sheet and adopt sealed the pad to seal, the sealed or high accuracy waterstop groove of recess O type sealing washer is sealed.

3. The doubler plate-type fin-piercing air cooler according to claim 1, characterized in that: the water leakage alarm device is a line type water leakage alarm device.

4. The doubler plate-type fin-piercing air cooler according to claim 1, characterized in that: the cooling water pipe is assembled with the main tube bearing plate and the auxiliary tube bearing plate in an expansion joint mode, a welding mode or an expansion joint and a welding mode.

5. The doubler plate-type fin-piercing air cooler according to claim 1, characterized in that: the number and the positions of the pipe holes of the auxiliary pipe bearing plate and the main pipe bearing plate are set according to the requirement of the fin-penetrating air cooler.

6. The doubler plate-type fin-piercing air cooler according to claim 2, characterized in that: the top and bottom ends of the water inlet and outlet water tank and the return water tank are respectively provided with an exhaust device, and the exhaust devices are automatic exhaust valves or manual exhaust valves.

7. The doubler plate-type fin-piercing air cooler according to claim 2, characterized in that: the water inlet and outlet water tank left side about both ends all the device have the drain valve, the drain valve on be equipped with supporting flange, supporting flange between be equipped with flange gasket, supporting flange pass through bolt, nut fixed, be equipped with flat pad and spring pad between bolt, the nut.

8. The doubler plate-type fin-piercing air cooler according to claim 1, characterized in that: the supporting side plate and the edge of the periphery of the double-plate type tube bearing plate are provided with a plurality of small holes which are uniformly distributed and used for fixing bolts.