CN213838692U - Oil cooler - Google Patents

Abstract

The utility model relates to an oil cooler relates to cooling arrangement's field, it includes shell and cooling body, cooling body includes the baffle, lower baffle and cooling tube, lower baffle passes through bolt fixed connection in the bottom of shell, it wears to establish in the shell and slides with the shell and is connected to go up the baffle, go up the outer peripheral face of baffle and the inner peripheral surface butt of shell, go up the baffle, lower baffle, form the cooling chamber between the shell, the cooling tube is worn to establish in the cooling chamber, and the one end of cooling tube passes the baffle, the other end of cooling tube passes lower baffle. The installation and the dismantlement of oil cooler shell can be accomplished to bolt between this application only need installation or dismantlement lower baffle and the shell bottom to the shell is kept motionless with the position of baffle down on being pulled down, is convenient for change the cooling tube, has shortened and has maintained the required time of oil cooler.

Description

Oil cooler

Technical Field

The application relates to the field of cooling equipment, in particular to an oil cooler.

Background

The oil cooler is turbine oil cooling equipment matched with a steam turbine in a power system, is of a light pipe surface type, and adopts circulating water as a medium to realize heat exchange, so that the oil temperature at the inlet of the bearing is ensured to reach a specified value, and the normal operation of a unit is ensured.

Most of the existing oil coolers comprise a base, a shell, a top shell and a cooling mechanism arranged in the shell; the base fixed connection is at the lower extreme of shell, and top shell fixed connection is in the upper end of shell. The cooling mechanism comprises a cooling pipe, an upper partition plate and a lower partition plate, the lower partition plate is blocked between the base and the shell, and the upper partition plate is blocked between the top shell and the shell, so that a cooling cavity is formed among the upper partition plate, the lower partition plate and the shell; an oil inlet and an oil outlet are formed in the shell, the oil inlet and the oil outlet are communicated with the cooling cavity, lubricating oil enters the cooling cavity from the oil inlet, and then is discharged out of the cooling cavity from the oil outlet. The cooling pipe is worn to establish in the cooling chamber, and cooling water flows in the cooling pipe, and lubricating oil alright in the cooling chamber like this can carry out the heat exchange with the cooling water in the cooling pipe, and then realize the cooling of lubricating oil.

After the oil cooler is used for a period of time, scale is adhered to the inner wall of the cooling pipe, and oil stains are adhered to the outer wall of the cooling pipe, so that the heat exchange efficiency of the oil cooler is influenced; therefore, the oil cooler can replace the cooling pipe after being used for a period of time so as to maintain the cooling performance of the oil cooler.

In view of the above-mentioned related art, the inventor believes that the oil cooler is not convenient to be assembled and disassembled when the cooling pipe needs to be replaced.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the dismouting oil cooler, shorten the time that the oil cooler needed of maintaining, this application provides an oil cooler.

The application provides an oil cooler adopts following technical scheme:

an oil cooler comprises a shell and a cooling mechanism, wherein the cooling mechanism comprises an upper partition plate, a lower partition plate and a cooling pipe, one end of the cooling pipe penetrates through the upper partition plate, the other end of the cooling pipe penetrates through the lower partition plate, the lower partition plate is fixedly connected to the bottom end of the shell through a bolt, the upper partition plate penetrates through the shell and is connected with the shell in a sliding mode, the outer peripheral surface of the upper partition plate is abutted to the inner peripheral surface of the shell, a cooling cavity is formed among the upper partition plate, the lower partition plate and the shell, and the cooling pipe penetrates through the cooling cavity.

By adopting the technical scheme, when the oil cooler is installed, the cooling pipe is firstly inserted into the upper partition plate and the lower partition plate, then the shell is sleeved outside the upper partition plate, then the shell gradually slides towards the lower partition plate until the lower partition plate is abutted against the bottom end of the shell, and then the shell and the lower partition plate are fixed together through the bolts, so that the installation of the oil cooler can be completed; when the cooling pipe needs to be replaced, the bolt between the partition plate and the shell is detached, and then the shell can be pulled out from the outside of the cooling pipe, so that the cooling pipe can be replaced, the disassembly and assembly efficiency of the oil cooler is improved, and the time for maintaining the oil cooler is shortened.

Optionally, a sealing ring for improving the sealing performance of the cooling cavity is arranged between the upper partition plate and the outer shell.

Through adopting above-mentioned technical scheme, the separation of sealing ring has reduced the probability that lubricating oil revealed in the cooling chamber between last baffle and shell, has reduced the probability that lubricating oil is polluted by external impurity simultaneously.

Optionally, a sealing ring groove for clamping the sealing ring is formed in the inner circumferential surface of the housing, the sealing ring is clamped in the sealing ring groove, and the inner circumferential surface of the sealing ring is further sleeved on the outer circumferential surface of the upper partition plate.

Through adopting above-mentioned technical scheme, accomplish fixed back between shell and lower baffle, produce installation error between shell and the last baffle on the shell direction of sliding easily, because the sealing ring joint is in sealed annular, the inner peripheral surface cover of sealing ring establishes on the outer peripheral face of last baffle moreover for go up the leakproofness between baffle and the shell and be difficult for receiving installation error's influence.

Optionally, the shell includes heat transfer section and water conservancy diversion section, the one end of heat transfer section with the baffle is connected down, the water conservancy diversion section passes through the bolt can dismantle the connection and is in the heat transfer section is kept away from the one end of baffle down, the seal ring groove is seted up the heat transfer section is close to on the inner peripheral surface of water conservancy diversion section.

Through adopting above-mentioned technical scheme, when the installation sealing ring, pull down the water conservancy diversion section from the heat transfer section earlier, later with the sealing ring joint in sealed annular, later fixing the water conservancy diversion section on the heat transfer section, so the installer of being convenient for installs the sealing ring.

Optionally, one end of the flow guide section, which is close to the heat exchange section, is fixedly connected with a pressing block, and the pressing block is abutted to one end face of the sealing ring, which is close to the flow guide section.

Through adopting above-mentioned technical scheme, with the sealing ring joint back in sealed annular, screw up the bolt of connecting heat transfer section and water conservancy diversion section, so the briquetting alright with compressing tightly the sealing ring, reduced the probability that the sealing ring drops, improved the reliability of sealing ring.

Optionally, a first guide surface is formed on the pressing block and/or the heat exchange section, a second guide surface is formed on the sealing ring, the first guide surface abuts against the second guide surface, and when the pressing block is pressed on the sealing ring, the sealing ring has a tendency of contracting towards the axis of the sealing ring.

By adopting the technical scheme, when the sealing ring is installed, the sealing ring can be sleeved on the outer peripheral surface of the upper partition plate, then the bolt between the heat exchange section and the flow guide section is screwed down, the pressing block is pressed on the sealing ring, the sealing ring shrinks towards the axis of the sealing ring, and the inner peripheral surface of the sealing ring is pressed on the outer peripheral surface of the upper partition plate, so that the sealing performance of the sealing ring is improved; when the upper partition plate penetrates into the sealing ring, the sealing ring is not easy to rub by the upper partition plate, and the probability of damage of the sealing ring is reduced.

Optionally, the outer circumferential surface of the pressing block abuts against the inner circumferential surface of the sealing ring groove.

Through adopting above-mentioned technical scheme, when using the briquetting to compress tightly the sealing ring, wear to establish the briquetting in sealed annular earlier, the inner peripheral surface of sealed annular just can apply for the briquetting with the guide effect this moment, makes the briquetting and sealed annular keep coaxial, when the briquetting compresses tightly the sealing ring, makes the pressure that each part received of sealing ring axial more even, and then makes the leakproofness between sealing ring inner peripheral surface and the last baffle outer peripheral surface more even.

Optionally, a positioning ring is fixedly connected to the inner circumferential surface of one end of the heat exchange section, which is close to the flow guide section, the inner diameter of the positioning ring is smaller than that of the heat exchange section, and the upper partition plate is arranged in the positioning ring in a penetrating manner.

Through adopting above-mentioned technical scheme, when taking place relative slip with heat transfer section and last baffle, be difficult for producing the friction and colliding with between the outer peripheral face of going up the baffle and the inner peripheral surface of heat transfer section, reduced the probability that the baffle card dies in the heat transfer section of going up, the dismouting of the shell of being convenient for.

Optionally, a third guide surface is disposed between the inner circumferential surface of the positioning ring and the inner circumferential surface of the flow guide section.

Through adopting above-mentioned technical scheme, when establishing heat transfer section cover on last baffle, the third guide surface leads to last baffle, and then is convenient for penetrate the locating ring with last baffle, efficiency when having improved the installation oil cooler.

Optionally, a lifting ring is fixedly connected to the flow guide section, and the lifting ring and the center of gravity of the shell are on the same vertical line.

Through adopting above-mentioned technical scheme, when dismouting oil cooler, can use the loop wheel machine to hoist the shell, because the focus of rings and shell is on same vertical line, the shell is difficult for the upset when being hoisted, and then the dismouting of the oil cooler of being convenient for.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the upper partition plate penetrates through the shell and is connected with the shell in a sliding mode, the outer peripheral surface of the upper partition plate is abutted to the inner peripheral surface of the shell, and the oil cooler can be assembled and disassembled only by disassembling and assembling bolts between the lower partition plate and the shell, so that the time required for maintaining the oil cooler is shortened; and the positions of the upper partition plate and the lower partition plate are kept unchanged after the shell is detached, so that maintenance personnel can replace the cooling pipe conveniently.

2. Through the setting of heat transfer section and water conservancy diversion section, make the water conservancy diversion section pull down from the heat transfer section, so be convenient for the installer place the sealing ring to in the sealing ring groove.

3. Through the setting of first spigot surface and second spigot surface, during the installation sealing ring, the accessible briquetting compresses tightly the inner peripheral surface of sealing ring on the outer peripheral face of last baffle, has improved the leakproofness between last baffle and the heat-transfer section.

4. Through the setting of holding ring, when the baffle was gone up in the dismouting, it is difficult for the card to die in the heat transfer section to go up the baffle, and the degree of difficulty when having reduced the dismouting oil cooler has improved the efficiency of dismouting oil cooler, and the setting of third spigot surface is convenient for penetrate the baffle to the holding ring, has improved the efficiency of installation shell.

Drawings

Fig. 1 is an overall structural view of the related art;

FIG. 2 is a schematic cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 4 is a schematic cross-sectional view of B-B of FIG. 2;

fig. 5 is an enlarged schematic view of a portion a in fig. 4.

Description of reference numerals: 100. a base; 110. a middle partition plate; 120. a water inlet cavity; 130. a water outlet cavity; 140. a water inlet; 150. a water outlet; 200. a housing; 210. an oil inlet; 220. an oil outlet; 230. a heat exchange section; 231. a positioning ring; 232. sealing the ring groove; 240. a flow guide section; 241. briquetting; 250. a cooling chamber; 300. a top shell; 310. a flow guide cavity; 400. a cooling mechanism; 410. an upper partition plate; 420. a lower partition plate; 430. a cooling tube; 431. a water inlet pipe; 432. a water outlet pipe; 440. a support plate; 450. a support bar; 500. a seal ring; 600. a first guide surface; 700. a guide block; 710. a third guide surface; 800. a lifting ring.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

Referring to fig. 1 and 2, in the related art, the oil cooler includes a base 100, a cylindrical housing 200, a top case 300, and a cooling mechanism 400 disposed in the housing 200, and the cooling mechanism 400 includes an upper partition 410, a lower partition 420, and a cooling pipe 430.

Referring to fig. 1 and 2, a flange is welded to the lower end of the casing 200, a flange is welded to the upper end of the base 100, and the lower partition plate 420 is interposed between the casing 200 and the base 100, and the casing 200, the lower partition plate 420, and the base 100 are fixedly coupled together by bolts. A cavity is formed between the base 100 and the lower partition plate 420, the middle partition plate 110 is welded on the inner wall of the base 100, and the cavity is divided into two parts by the middle partition plate 110, so that the water inlet cavity 120 and the water outlet cavity 130 are formed. The base 100 is provided with a water inlet 140 and a water outlet 150, the water inlet 140 is communicated with the water inlet cavity 120, and the water outlet 150 is communicated with the water outlet cavity 130.

Referring to fig. 1 and 2, a flange is welded to the upper end of the outer shell 200, a flange is also welded to the lower end of the top shell 300, the upper partition plate 410 is clamped between the top shell 300 and the outer shell 200, the upper partition plate 410 and the top shell 300 are fixedly connected together by bolts, so that a flow guide cavity 310 is formed between the top shell 300 and the upper partition plate 410.

Referring to fig. 1 and 2, the cooling pipe 430 includes a water inlet pipe 431 and a water outlet pipe 432, the water inlet pipe 431 and the water outlet pipe 432 are provided with a plurality of pipes, and the axes of the water inlet pipe 431 and the water outlet pipe 432 are parallel to the axis of the housing 200. Two ends of the water inlet pipe 431 respectively penetrate through the upper partition plate 410 and the lower partition plate 420 to communicate the water inlet cavity 120 with the diversion cavity 310, and two ends of the water outlet pipe 432 respectively penetrate through the upper partition plate 410 and the lower partition plate 420 to communicate the diversion cavity 310 with the water outlet cavity 130.

Referring to fig. 1 and 2, a cooling cavity 250 is formed between the housing 200 and the cooling pipe 430, an oil inlet 210 is opened at the lower end of the housing 200, an oil outlet 220 is opened at the upper end of the housing 200, and the oil inlet 210 and the oil outlet 220 are both communicated with the cooling cavity 250. Lubricating oil flows into the cooling chamber 250 from the oil inlet 210 and flows out of the cooling chamber 250 from the oil outlet 220.

The cooling water enters the inlet pipe 431 from the inlet chamber 120 and then flows into the diversion chamber 310, and the cooling water in the diversion chamber 310 flows into the outlet chamber 130 from the outlet pipe 432. When the cooling water flows through the cooling pipe 430, the lubricating oil in the cooling chamber 250 can exchange heat with the cooling water in the cooling pipe 430, and cooling of the lubricating oil is achieved.

Referring to fig. 1 and 2, the cooling mechanism 400 further includes a plurality of support plates 440 and support rods 450 for supporting the cooling tubes 430, the plurality of support plates 440 are uniformly arranged along the axial direction of the housing 200, the support plates 440 are all disposed between the upper partition plate 410 and the lower partition plate 420, and the cooling tubes 430 are disposed on the support plates 440 in a penetrating manner. The plurality of support rods 450 are uniformly distributed along the circumferential direction of the support plate 440, the support rods 450 are also arranged on the support plate 440 in a penetrating manner, and the support rods 450 and the support plate 440 are fixedly connected together in a spot welding manner. The bottom end of the support rod 450 is inserted into the lower partition 420, and the top end of the support rod 450 is inserted into the upper partition 410. Thus, when cooling water is introduced into the cooling pipe 430, the cooling pipe 430 is not easy to shake due to the turbulent flow of the water, and the probability of separation of the cooling pipe 430 from the upper partition plate 410 and the lower partition plate 420 is reduced; meanwhile, the cooling tubes 430 are not easy to bend, and the cooling tubes 430 are uniformly arranged, so that the heat exchange efficiency is improved.

When replacing the cooling pipe 430, the following steps are required:

s1: detaching the top case 300 from the outer case 200, and detaching the top case 300 alone;

s2: taking out the upper partition 410 from the upper end of the cooling tube 430;

s3: detaching the base 100 from the housing 200 and withdrawing the housing 200 from the cooling pipe 430;

s4: the cooling pipes 430 are drawn out one by one and the oil contamination remaining in the cooling chamber 250 is cleaned.

When the oil cooler is reinstalled, the following steps are required:

s1: inserting the cooling pipe 430 on the lower separator 420 and the support plate 440;

s2: sleeving the shell 200 outside the cooling pipe 430, and fixing the shell 200, the lower partition plate 420 and the base 100 together through bolts;

s3: placing the upper partition plate 410 on the upper ends of the cooling tubes 430, and inserting the cooling tubes 430 one by one on the upper partition plate 410;

s4: the top case 300 is placed on the outer case 200, and the outer case 200, the upper partition 410, and the top case 300 are fixed together by bolts.

In the related art, when the cooling pipe 430 is replaced, a plurality of steps are required, and particularly, the newly replaced cooling pipe 430 needs to be inserted into the upper partition plate 410 again, so that the installation difficulty is high, the disassembly and assembly efficiency of the oil cooler is reduced, and the time for maintaining the oil cooler is prolonged.

In order to improve the efficiency of dismouting, shorten the time that the oil cooler needed of maintaining, this application embodiment provides an oil cooler.

Referring to fig. 3 and 4, the oil cooler includes a base 100, a housing 200, and a cooling mechanism 400, and the cooling mechanism 400 includes a lower partition 420, an upper partition 410, and a cooling pipe 430. The casing 200 includes a heat exchange section 230 and a flow guiding section 240, wherein the heat exchange section 230 is disposed in a cylindrical shape and is sleeved outside the cooling pipe 430. The bottom end of the heat exchange section 230 and the top end of the base plate 100 clamp the lower partition plate 420 therebetween, and the heat exchange section 230, the lower partition plate 420 and the base plate 100 are fixedly connected together by bolts. After the cooling pipes 430 are inserted into the upper partition 410, the upper partition 410 is inserted into the heat exchange section 230.

Referring to fig. 4 and 5, a positioning ring 231 is integrally formed on an inner circumferential surface of one end of the heat exchange section 230, which is away from the base 100, the inner diameter of the positioning ring 231 is smaller than that of the heat exchange section 230, and the upper partition plate 410 is inserted into the heat exchange section 230 and then clamped in the positioning ring 231, so that a cooling cavity 250 is formed among the upper partition plate 410, the lower partition plate 420, the heat exchange section 230 and the cooling pipe 430. An oil inlet 210 is formed in the lower end of the heat exchange section 230, an oil outlet 220 is formed in the upper end of the heat exchange section 230, and both the oil inlet 210 and the oil outlet 220 are communicated with the cooling cavity 250. Lubricating oil enters the cooling chamber 250 from the oil inlet 210 and exits the cooling chamber 250 from the oil outlet 220.

Referring to fig. 3 and 4, the flow guide section 240 is fixedly connected to one end of the heat exchange section 230 away from the base 100 by bolts, and a flow guide cavity 310 is formed between the flow guide section 240 and the upper partition 410. The cooling water in the inlet chamber 120 enters the diversion chamber 310 through the inlet pipe 431, and the cooling water in the diversion chamber 310 enters the outlet chamber 130 through the outlet pipe 432. When the cooling water flows through the cooling pipe 430, the lubricating oil can exchange heat with the cooling water through the cooling pipe 430, and cooling of the lubricating oil is achieved.

Thus, when replacing the cooling pipe 430, the following steps are required:

s1: disassembling the base 100 and the heat exchange section 230, and extracting the heat exchange section 230 and the guide section 240 together from the cooling pipe 430;

s2: the cooling pipe 430 is drawn out one by one from the lower partition 420, the support plate 440, and the upper partition 410, and the oil contamination remaining in the cooling chamber 250 is cleaned.

When the oil cooler is reinstalled, the following steps are required:

s1: the cooling pipe 430 sequentially passes through the upper partition plate 410, the support plate 440 and the lower partition plate 420, and is clamped on the upper partition plate 410 and the lower partition plate 420;

s2: the heat exchange section 230 is sleeved outside the cooling pipe 430, and the heat exchange section 230, the lower partition plate 420 and the base 100 are fixed together by bolts.

Therefore, steps required when the cooling pipe 430 is replaced are reduced, the upper partition plate 410 does not need to be detached from the cooling pipe 430, and therefore the newly replaced cooling pipe 430 does not need to be inserted into the upper partition plate 410 again, installation difficulty is reduced, time required for maintaining the oil cooler is shortened, and dismounting efficiency of the oil cooler is improved.

Referring to fig. 4 and 5, in order to insert the upper partition 410 into the positioning ring 231, a guide block 700 is integrally formed or welded between the positioning ring 231 and the guide section 240, and a third guide surface 710 is formed on the guide block 700, and the third guide surface 710 smoothly connects an inner circumferential surface of the positioning ring 231 and an inner circumferential surface of the guide section 240. When the heat exchange section 230 is sleeved on the upper partition plate 410, the third guide surface 710 guides the upper partition plate 410, so that the upper partition plate 410 can penetrate into the positioning ring 231, and the efficiency of installing the oil cooler is improved.

In order to facilitate lifting of the shell 200, a hanging ring 800 may be welded to the uppermost end of the guide section 240, and the hanging ring 800 and the center of gravity of the shell 200 are on the same vertical line. When the shell 200 is disassembled and assembled, the hanging ring 800 can be connected to the lifting device by using the hanging hook, the shell 200 is lifted by the lifting device, and the shell 200 is not easy to turn over in the lifting process, so that the cooling mechanism 400 is not easy to be blocked in the heat exchange section 230, and the oil cooler is convenient to disassemble and assemble.

Referring to fig. 4 and 5, a sealing ring 500 for improving the sealing performance of the cooling cavity 250 is disposed between the upper partition plate 410 and the heat exchange section 230, a sealing ring groove 232 for placing the sealing ring 500 is disposed on an inner circumferential surface of the positioning ring 231, and the sealing ring 500 is clamped in the sealing ring groove 232. When the sealing ring 500 is clamped in the sealing ring groove 232 and the upper partition plate 410 is inserted into the positioning ring 231, the inner circumferential surface of the sealing ring 500 abuts against the outer circumferential surface of the upper partition plate 410, so that the cooling water in the diversion cavity 310 is not easily mixed with the lubricating oil in the cooling cavity 250.

Errors must be generated during processing and installation, so that the distance between the upper partition plate 410 and the lower partition plate 420 is unstable; because the sealing ring 500 is sleeved outside the upper partition plate 410, as long as the processing and installation error is not greater than the thickness of the upper partition plate 410, the inner circumferential surface of the sealing ring 500 can be tightly abutted against the outer circumferential surface of the upper partition plate 410, and the influence of the processing error and/or the installation error on the sealing performance of the cooling cavity 250 is reduced.

Referring to fig. 4 and 5, a pressing block 241 is integrally formed at one end of the flow guide section 240 close to the heat exchange section 230, the pressing block 241 is annularly disposed, and an outer circumferential surface of the pressing block 241 is flush with an inner circumferential surface of the sealing ring groove 232. When the guide section 240 is fixed on the heat exchange section 230 by using bolts, the pressing block 241 is inserted into the sealing ring groove 232, and the pressing block 241 abuts against one end face of the sealing ring 500 close to the guide section 240.

Referring to fig. 4 and 5, the cross section of the sealing ring 500 is an isosceles trapezoid, the thickness of the end of the sealing ring 500 close to the axis of the sealing ring is greater than the thickness of the end of the sealing ring 500 far from the axis of the sealing ring, and two end surfaces of the sealing ring 500 form two second guide surfaces. A side wall of the seal ring groove 232 away from the guide section 240 is disposed in an inclined manner, so as to form a first guide surface 600, and the side wall is aligned with an inclined surface of the seal ring 500 away from the guide section 240. An end surface of the pressing block 241 close to the sealing ring 500 is arranged in an inclined manner and also forms a first guide surface 600, and an end surface of the pressing block 241 close to the sealing ring 500 is aligned with an inclined surface of the sealing ring 500 close to the guide section 240.

When the guide section 240 is fixed on the heat exchange section 230 by using bolts, the pressing block 241 presses the sealing ring 500, and under the action of the second guide surface and the first guide surface 600, the sealing ring 500 has a tendency of shrinking toward the axis of the sealing ring, so that the inner circumferential surface of the sealing ring 500 is pressed against the outer circumferential surface of the upper partition plate 410, thereby enhancing the sealing performance of the cooling cavity 250.

In other embodiments, the cross section of the sealing ring 500 may also be a right trapezoid, and the thickness of the end of the sealing ring 500 close to the axis of the sealing ring 500 is greater than the thickness of the end far from the axis of the sealing ring, so that the inclined surface of the sealing ring 500 forms a second guiding surface. If the inclined surface of the sealing ring 500 is located at an end of the sealing ring 500 far away from the flow guiding section 240, the first guiding surface 600 is opened on the heat exchanging section 230; if the inclined surface of the sealing ring 500 is located at an end of the sealing ring 500 close to the flow guiding section 240, the first guiding surface 600 is formed on the pressing block 241.

Since the outer circumferential surface of the pressing piece 241 is aligned with the inner circumferential surface of the sealing ring groove 232, when the pressing piece 241 is inserted into the sealing ring groove 232, the outer circumferential surface of the pressing piece 241 is in contact with the inner circumferential surface of the sealing ring groove 232, and the pressing piece 241 and the sealing ring groove 232 are kept coaxial under the guiding action of the sealing ring groove 232. When the pressing block 241 presses the sealing ring 500, the pressing block 241 can make the pressure applied to each part in the axial direction of the sealing ring 500 more even, and further make the sealing performance between the inner circumferential surface of the sealing ring 500 and the outer circumferential surface of the upper partition plate 410 more even.

The implementation principle of the oil cooler in the embodiment of the application is as follows:

when the oil cooler is installed for the first time, the following steps are executed;

s1: inserting the cooling pipe 430 on the upper partition 410, the lower partition 420 and the support plate 440, thereby completing the assembly of the cooling mechanism 400;

s2: placing the lower spacer 420 on the base 100;

s3: sleeving the heat exchange section 230 outside the cooling pipe 430, and fixing the heat exchange section 230, the lower partition plate 420 and the base 100 together through bolts;

s4: placing seal ring 500 in seal ring groove 232;

s5: the flow guide section 240 is placed at the upper end of the heat exchange section 230, the flow guide section 240 and the heat exchange section 230 are fixed together through bolts, and the inner circumferential surface of the sealing ring 500 is pressed against the outer circumferential surface of the upper partition plate 410 under the action of the pressing block 241.

When the cooling tube 430 is replaced, the following steps are performed;

s1: loosening the bolts between the flow guiding section 240 and the heat exchange section 230, so that the inner circumferential surface of the sealing ring 500 is no longer pressed on the outer circumferential surface of the upper partition plate 410;

s2: the base 100 and the heat exchange section 230 are disassembled, and the heat exchange section 230 and the guide section 240 are drawn out from the cooling pipe 430 together;

s3: the cooling pipes 430 are drawn out one by one and the oil contamination remaining in the cooling chamber 250 is cleaned.

When the oil cooler is installed again, the following steps are executed;

s1: inserting the cooling pipe 430 on the upper and lower partitions 410 and 420 and the support plate 440;

s2: sleeving the heat exchange section 230 outside the cooling pipe 430, and fixing the heat exchange section 230, the lower partition plate 420 and the base 100 together through bolts;

s3: the bolts between the flow guiding section 240 and the heat exchange section 230 are tightened, so that the inner circumferential surface of the sealing ring 500 is pressed against the outer circumferential surface of the upper partition 410 again.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. An oil cooler comprises a shell (200) and a cooling mechanism (400), wherein the cooling mechanism (400) comprises an upper partition plate (410), a lower partition plate (420) and a cooling pipe (430), one end of the cooling pipe (430) is arranged on the upper partition plate (410) in a penetrating mode, the other end of the cooling pipe (430) is arranged on the lower partition plate (420) in a penetrating mode, the lower partition plate (420) is fixedly connected to the bottom end of the shell (200) through bolts, and the oil cooler is characterized in that: the upper partition plate (410) penetrates through the shell (200) and is connected with the shell (200) in a sliding mode, the outer peripheral surface of the upper partition plate (410) is abutted to the inner peripheral surface of the shell (200), a cooling cavity (250) is formed among the upper partition plate (410), the lower partition plate (420) and the shell (200), and the cooling pipe (430) penetrates through the cooling cavity (250).

2. An oil cooler as claimed in claim 1, wherein: and a sealing ring (500) for improving the sealing performance of the cooling cavity (250) is arranged between the upper partition plate (410) and the shell (200).

3. An oil cooler as claimed in claim 2, wherein: the inner peripheral surface of shell (200) is seted up and is used for the joint sealing ring groove (232) of sealing ring (500), sealing ring (500) joint is in sealing ring groove (232), the inner peripheral surface of sealing ring (500) still the cover is established go up on the outer peripheral face of baffle (410).

4. A fuel cooler as claimed in claim 3, wherein: the shell (200) includes heat transfer section (230) and water conservancy diversion section (240), the one end of heat transfer section (230) with baffle (420) are connected down, water conservancy diversion section (240) can dismantle through the bolt and connect in heat transfer section (230) are kept away from the one end of baffle (420) down, seal ring groove (232) are seted up heat transfer section (230) are close to on the inner peripheral surface of water conservancy diversion section (240).

5. An oil cooler according to claim 4, characterized in that: one end, close to the heat exchange section (230), of the flow guide section (240) is fixedly connected with a pressing block (241), and the pressing block (241) is abutted to one end face, close to the flow guide section (240), of the sealing ring (500).

6. An oil cooler as claimed in claim 5, wherein: the pressing block (241) and/or the heat exchange section (230) are/is provided with a first guide surface (600), the sealing ring (500) is provided with a second guide surface, the first guide surface (600) is abutted to the second guide surface, and when the pressing block (241) is pressed on the sealing ring (500), the sealing ring (500) has a tendency of contracting towards the axis of the sealing ring.

7. An oil cooler as claimed in claim 6, wherein: the outer peripheral surface of the pressing block (241) is in contact with the inner peripheral surface of the sealing ring groove (232).

8. An oil cooler according to any one of claims 4 to 7, characterized in that: a positioning ring (231) is fixedly connected to the inner circumferential surface of one end, close to the flow guide section (240), of the heat exchange section (230), the inner diameter of the positioning ring (231) is smaller than that of the heat exchange section (230), and the upper partition plate (410) penetrates through the positioning ring (231).

9. An oil cooler as claimed in claim 8, wherein: and a third guide surface (710) is arranged between the inner peripheral surface of the positioning ring (231) and the inner peripheral surface of the flow guide section (240).

10. An oil cooler according to claim 4, characterized in that: the diversion section (240) is fixedly connected with a hanging ring (800), and the centers of gravity of the hanging ring (800) and the shell (200) are on the same vertical line.

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