阅读说明：本技术 一种密封结构以及具有该密封结构的换热器 (Sealing structure and heat exchanger with same ) 是由 王国进 于 2021-08-25 设计创作，主要内容包括：本发明涉及换热器技术领域,为了解决目前换热器密封效果差的问题,提供了一种密封结构,包括,阀门本体,阀门本体具有一进口和一出口,进口与出口均与阀门腔体连通,阀门腔体侧壁上还开设有一气孔,气孔一端设有密封块,另一端与气源连通；阀芯,阀芯转动设置在阀门腔体内,以控制出口的通断,阀芯上设有一环形槽,环形槽内设有一气囊,气囊一端突出环形槽设置,另一端与阀芯外表面上的密封圈连通；其中,当阀芯转动到与密封块接触时,向气孔内通气,气体挤压密封块,以使密封块堵住环形槽槽口；以及,密封块挤压气囊,气囊受压后将气体充入密封圈中,以使密封圈与密封块贴合。(The invention relates to the technical field of heat exchangers, and provides a sealing structure for solving the problem of poor sealing effect of the existing heat exchanger, which comprises a valve body, wherein the valve body is provided with an inlet and an outlet, the inlet and the outlet are both communicated with a valve cavity, the side wall of the valve cavity is also provided with an air hole, one end of the air hole is provided with a sealing block, and the other end of the air hole is communicated with an air source; the valve core is rotationally arranged in the valve cavity to control the on-off of the outlet, an annular groove is arranged on the valve core, an air bag is arranged in the annular groove, one end of the air bag protrudes out of the annular groove, and the other end of the air bag is communicated with a sealing ring on the outer surface of the valve core; when the valve core rotates to be in contact with the sealing block, air is introduced into the air hole, and the air extrudes the sealing block, so that the sealing block blocks the notch of the annular groove; and the sealing block extrudes the air bag, and the air bag is pressurized to charge air into the sealing ring so as to ensure that the sealing ring is attached to the sealing block.)

1. A sealing structure, characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the valve comprises a valve body, a valve body and a valve body, wherein the valve body is provided with an inlet and an outlet, the inlet and the outlet are both communicated with a valve cavity, the side wall of the valve cavity is also provided with an air hole, one end of the air hole is provided with a sealing block, and the other end of the air hole is communicated with an air source;

the valve core is rotatably arranged in the valve cavity to control the on-off of the outlet, an annular groove is formed in the valve core, an air bag is arranged in the annular groove, one end of the air bag protrudes out of the annular groove, and the other end of the air bag is communicated with a sealing ring on the outer surface of the valve core; wherein the content of the first and second substances,

when the valve core rotates to be in contact with the sealing block, the air hole is ventilated, and the sealing block is extruded by air so as to be blocked by the sealing block; and the number of the first and second groups,

the sealing block extrudes the air bag, and the air bag is pressurized to charge air into the sealing ring so that the sealing ring is attached to the sealing block.

2. A sealing arrangement according to claim 1,

a triangular mounting cavity is arranged in the sealing block, an auxiliary block matched with the mounting cavity is arranged in the mounting cavity, an extrusion cavity is arranged between the auxiliary block and the sealing block, wherein,

a channel is formed in the auxiliary block, one end of the channel is communicated with the extrusion cavity, and the other end of the channel is communicated with the air hole.

3. A sealing arrangement according to claim 2,

the extrusion chamber is located in the middle of the sealing block so that

After the sealing block is extruded by gas, the middle part of the sealing block deforms.

4. A sealing arrangement according to claim 1,

the cross section of the annular groove is L-shaped, a mounting hole is arranged on the annular groove, a hose is arranged in the mounting hole, wherein,

the hose penetrates through the mounting hole to communicate the air bag with the sealing ring;

the air bag is matched with the annular groove.

5. A sealing arrangement according to claim 1,

the valve core is connected with connecting plates on two sides, the connecting plates are provided with clamping grooves, an

The valve comprises a valve body and is characterized in that driving parts are fixed on two sides of the valve body, the output ends of the driving parts extend into the valve cavity, and clamping blocks matched with the clamping grooves are arranged on the output ends.

6. A sealing arrangement according to claim 5,

the driving part is a motor, an output shaft of the motor extends into the valve cavity, a support is mounted on the side wall of the valve body, and the motor is fixed on the support; and is

The output shaft is fixedly connected with the clamping block.

7. A sealing arrangement according to claim 1,

the valve cavity is also provided with a limiting block, the limiting block is provided with a limiting groove, wherein,

the limiting groove is communicated with the air hole;

the sealing block is positioned in the limiting groove, so that the sealing block can only deform towards the direction of the valve core under the state that the air hole is ventilated.

8. A sealing arrangement according to claim 1,

the bottom of the valve cavity is provided with a cleaning part, wherein,

when the valve core rotates in the valve cavity, the cleaning part can contact the valve core to remove impurities on the surface of the valve core.

9. A sealing arrangement according to claim 8,

the cleaning part comprises a tray body, a hairbrush arranged on the tray body and plug-in units arranged on the periphery of the tray body, wherein,

a through hole is formed in the middle of the disc body;

the disc body is fixed in the valve cavity through the plug-in unit.

10. A heat exchanger having a sealing structure according to any one of claims 1 to 9,

the heat exchanger comprises a box body and a heat exchange plate group arranged in the box body, a water inlet is arranged at the bottom of the box body, wherein,

the inlet is communicated with the water inlet of the heat exchanger.

Technical Field

The invention relates to the technical field of heat exchangers, in particular to a sealing structure and a heat exchanger with the same.

Background

The high-temperature heat exchanger is a device which can be used for cooling and recovering heat of high-flow high-temperature flue gas. The bottom of the high-temperature heat exchanger is generally provided with a valve, and the tightness of the valve plays an important role. The following problems are encountered with typical valves:

the valve is generally provided with a sealing ring for sealing, but the sealing ring has poor effect, and sometimes the sealing effect is poor due to overlarge flow.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the technical problems in the above-mentioned art, the present invention provides a sealing structure, comprising,

the valve comprises a valve body, a valve body and a valve body, wherein the valve body is provided with an inlet and an outlet, the inlet and the outlet are both communicated with a valve cavity, the side wall of the valve cavity is also provided with an air hole, one end of the air hole is provided with a sealing block, and the other end of the air hole is communicated with an air source;

the valve core is rotatably arranged in the valve cavity to control the on-off of the outlet, an annular groove is formed in the valve core, an air bag is arranged in the annular groove, one end of the air bag protrudes out of the annular groove, and the other end of the air bag is communicated with a sealing ring on the outer surface of the valve core; wherein the content of the first and second substances,

when the valve core rotates to be in contact with the sealing block, the air hole is ventilated, and the sealing block is extruded by air so as to be blocked by the sealing block; and the number of the first and second groups,

the sealing block extrudes the air bag, and the air bag is pressurized to charge air into the sealing ring so that the sealing ring is attached to the sealing block.

Furthermore, a triangular mounting cavity is arranged in the sealing block, an auxiliary block matched with the mounting cavity is arranged in the mounting cavity, an extrusion cavity is arranged between the auxiliary block and the sealing block, wherein,

a channel is formed in the auxiliary block, one end of the channel is communicated with the extrusion cavity, and the other end of the channel is communicated with the air hole.

Further, the extrusion chamber is located in the middle of the sealing block so that

After the sealing block is extruded by gas, the middle part of the sealing block deforms.

Furthermore, the cross section of the annular groove is L-shaped, the annular groove is provided with a mounting hole, a hose is arranged in the mounting hole, wherein,

the hose penetrates through the mounting hole to communicate the air bag with the sealing ring;

the air bag is matched with the annular groove.

Further, the two sides of the valve core are connected with connecting plates, the connecting plates are provided with clamping grooves, and

the valve comprises a valve body and is characterized in that driving parts are fixed on two sides of the valve body, the output ends of the driving parts extend into the valve cavity, and clamping blocks matched with the clamping grooves are arranged on the output ends.

Furthermore, the driving part is a motor, an output shaft of the motor extends into the valve cavity, a bracket is mounted on the side wall of the valve body, and the motor is fixed on the bracket; and is

The output shaft is fixedly connected with the clamping block.

Furthermore, the valve cavity is also provided with a limiting block, the limiting block is provided with a limiting groove, wherein,

the limiting groove is communicated with the air hole;

the sealing block is positioned in the limiting groove, so that the sealing block can only deform towards the direction of the valve core under the state that the air hole is ventilated.

Further, a cleaning part is arranged at the bottom of the valve cavity, wherein,

when the valve core rotates in the valve cavity, the cleaning part can contact the valve core to remove impurities on the surface of the valve core.

Further, the cleaning part comprises a tray body, a hairbrush arranged on the tray body and plug-in units arranged on the periphery of the tray body, wherein,

a through hole is formed in the middle of the disc body;

the disk body is fixed in the valve cavity through the plug-in unit

The invention also provides a heat exchanger with the sealing structure, the heat exchanger comprises a box body and a heat exchange plate group arranged in the box body, the bottom of the box body is provided with a water inlet, wherein,

the inlet is communicated with the water inlet of the heat exchanger.

Has the advantages that: 1. the invention relates to a sealing structure, wherein a sealing block is blown by an air source, so that the sealing block is pressed towards the direction of a valve core to deform, thereby blocking a notch of an annular groove on the valve core, and two contact parts are arranged between the sealing block and the notch of the annular groove, so that the sealing block has the effect of double sealing.

2. According to the invention, the air bag and the sealing ring are arranged, the sealing block can extrude the air bag, the air bag is extruded, and the sealing ring is inflated, so that the sealing ring is unfolded and is tightly attached to the inner wall of the valve cavity to realize the third sealing.

3. The invention is provided with the cleaning part, and the cleaning part can clean impurities on the surface of the valve core when the valve core rotates, thereby improving the sealing effect.

4. According to the invention, because the air bag protrudes out of the annular groove, impurities adhered on the hairbrush can be scraped when the air bag rotates, and the cleanness of the cleaning part is ensured.

Drawings

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

FIG. 2 is a schematic view of the valve body structure of the present invention;

FIG. 3 is a sectional view of the internal structure of the valve chamber of the present invention;

FIG. 4 is a schematic view of the state of the sealing block squeezing the bladder of the present invention;

FIG. 5 is a schematic view of the present invention showing the sealing block in an uncompressed state;

FIG. 6 is a schematic view of a cleaning portion according to the present invention;

in the figure:

100. the valve comprises a valve body 110, a valve cavity 120, an inlet 130, an outlet 140 and an air hole; 150. the device comprises a sealing block, a sealing block 160, an installation cavity 170, an auxiliary block 171, a channel 180, an extrusion cavity 190, a limiting block 191 and a limiting groove;

200. the air bag type air-conditioning valve comprises a valve core 210, an annular groove 220, an air bag 230, a sealing ring 240, a hose 250, a connecting plate 260, a clamping groove 270, a driving part 271, a motor 272, an output shaft 273, a clamping block 274, a bracket 274 and a sealing ring; 280. a cleaning part 281, a brush, 282, a tray body, 283, an insert, 284 and a through hole;

300. the heat exchanger 310, the box body 320, the heat exchange plate group 330 and the water inlet.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the invention. In the description of the present invention, it is to be understood that the terms "upper", "top", "bottom", and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, which is for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be taken as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.

Example 1

A sealing structure, comprising a sealing body and a sealing cover,

the valve comprises a valve body 100, wherein the valve body 100 is provided with an inlet 120 and an outlet 130, the inlet 120 and the outlet 130 are both communicated with a valve cavity 110, the side wall of the valve cavity 110 is also provided with an air hole 140, one end of the air hole 140 is provided with a sealing block 150, and the other end of the air hole 140 is communicated with an air source;

the valve core 200 is rotatably arranged in the valve cavity 110 to control the on-off of the outlet 130, an annular groove 210 is arranged on the valve core 200, an air bag 220 is arranged in the annular groove 210, one end of the air bag 220 protrudes out of the annular groove 210, and the other end of the air bag 220 is communicated with a sealing ring 230 on the outer surface of the valve core 200; wherein the content of the first and second substances,

when the valve core 200 rotates to contact with the sealing block 150, the air hole 140 is ventilated, and the air presses the sealing block 150, so that the sealing block 150 blocks the notch of the annular groove 210; and the number of the first and second groups,

the sealing block 150 presses the air bag 220, and the air bag 220 is pressurized to fill air into the sealing ring 230, so that the sealing ring 230 is attached to the sealing block 150.

Valve body 100

The valve body 100 is adapted to pass large flows of liquid.

The valve body 100 is provided with an inlet 120 and an outlet 130, the inlet 120 and the outlet 130 are both communicated with the valve cavity 110, the side wall of the valve cavity 110 is further provided with an air hole 140, one end of the air hole 140 is provided with a sealing block 150, and the other end is communicated with an air source. The air hole 140 is filled with air, and the air presses the sealing block 150, so that the sealing block 150 can protrude towards the inside of the valve cavity 110, and the valve core 200 in the valve cavity 110 can be pressed, thereby achieving the sealing effect.

In order to allow the sealing block 150 to deform only in the direction of the valve element 200 in a state where the air hole 140 is vented, the following structure is adopted in the present embodiment: the valve cavity 110 is further provided with a limiting block 190, the limiting block 190 is provided with a limiting groove 191, and the limiting groove 191 is communicated with the air hole 140; the sealing block 150 is located in the limiting groove 191. The cross section of the limiting groove 191 is pentagonal, certainly, the cross section of the limiting groove 191 can also be hexagonal, triangular and the like, the sealing block 150 is installed in the limiting groove 191, so that the deformation direction of the sealing block 150 is limited by the limiting groove 191, and the sealing block 150 can only deform towards the valve core 200.

In order to deform the center of the sealing block 150, rather than both sides, in this embodiment, an auxiliary block 170 is added to the sealing block 150, and the specific structure is as follows: a triangular mounting cavity 160 is arranged in the sealing block 150, an auxiliary block 170 adapted to the mounting cavity 160 is arranged in the mounting cavity 160, an extrusion cavity 180 is arranged between the auxiliary block 170 and the sealing block 150, wherein a channel 171 is formed in the auxiliary block 170, one end of the channel 171 is communicated with the extrusion cavity 180, and the other end of the channel is communicated with the air hole 140. The extrusion cavity 180 is located in the middle of the sealing block 150, so that the middle of the sealing block 150 deforms after the sealing block 150 is extruded by gas. The auxiliary block 170 is arranged in the middle of the mounting cavity 160, the bottom of the auxiliary block 170 is provided with a V-shaped groove, therefore, the auxiliary block 170 is spliced with the sealing block 150 to form the extrusion cavity 180, the extrusion cavity 180 is positioned in the middle of the sealing block 150, after air is introduced into the air hole 140, the air reaches the extrusion cavity 180 from the channel 171, the mounting cavity 160 is triangular, the auxiliary block 170 is matched with the mounting cavity 160, so that the air extrudes the auxiliary block 170 in the extrusion cavity 180, the auxiliary block 170 is limited in the mounting cavity 160 and cannot be unfolded, the middle part of the sealing block 150 can be unfolded, and the two sides of the sealing block 150 are effectively prevented from being unfolded.

Valve cartridge 200

The valve core 200 is suitable for controlling the on-off of the valve body 100.

The valve core 200 is rotatably disposed in the valve cavity 110, an annular groove 210 is disposed on the valve core 200, an air bag 220 is disposed in the annular groove 210, one end of the air bag 220 protrudes out of the annular groove 210, and the other end of the air bag is communicated with a sealing ring 230 on the outer surface of the valve core 200. The cross section of the annular groove 210 is L-shaped, a mounting hole is formed on the annular groove 210, a hose 240 is mounted in the mounting hole, wherein,

the hose 240 passes through the mounting hole to communicate the air bag 220 with the sealing ring 230; the air bag 220 is fitted into the annular groove 210. After the air bag 220 is extruded by the sealing block 150, the air is extruded into the sealing ring 230 by the sealing block 150, so that the sealing ring 230 is expanded to be tightly attached to the inner wall of the valve cavity 110, a sealing effect is achieved, and the sealing ring 230 is tightly attached to the sealing block 150 after being expanded, so that a sealing effect is achieved. The sealing block 150 is pressed by the gas in the air hole 140 and deforms towards the direction of the air bag 220, because the air bag 220 is arranged in the annular groove 210, the sealing block 150 blocks the opening of the annular groove 210 while the air bag 220 is pressed by the sealing block 150, and because two contact parts are arranged between the sealing block 150 and the notch of the annular groove 210, the double sealing effect is achieved.

In order to improve the sealing effect between the sealing block 150 and the notch of the annular groove 210, the cross section of the notch of the annular groove 210 can be trapezoidal, and the shape of the notch of the annular groove 210 is matched with the shape of the sealing block 150, so that the sealing block 150 is matched with the notch of the annular groove 210, the contact area with the notch of the annular groove 210 is larger, the line contact is changed into the surface contact, and the sealing effect is improved.

In order to enable the valve core 200 to rotate in the valve cavity 110, the two sides of the valve core 200 are connected with the connecting plates 250, the connecting plates 250 are provided with clamping grooves 260, the two sides of the valve body 100 are fixed with driving parts 270, the output ends of the driving parts 270 extend into the valve cavity 110, and the output ends are provided with clamping blocks 273 matched with the clamping grooves 260. The driving portion 270 is a motor 271, an output shaft 272 of the motor 271 extends into the valve cavity 110, and the output shaft 272 is fixedly connected with the clamping block 273. A bracket 274 is mounted on the side wall of the valve body 100, and the motor 271 is fixed on the bracket 274. The motor 271 can drive the output shaft 272 to rotate, and the clamping block 273 on the output shaft 272 is clamped in the clamping groove 260, so that the connecting plate 250 is driven to rotate, and finally the valve core 200 is rotated.

Since the valve core 200 is disposed in the valve chamber 110, the valve core 200 may be contaminated by long-term operation, thereby affecting the sealing effect. In this embodiment, the cleaning portion 280 is provided, and the specific structure is as follows: a cleaning part 280 is arranged at the bottom of the valve cavity 110, the cleaning part 280 comprises a tray 282, brushes 281 arranged on the tray 282 and inserts 283 arranged around the tray 282, wherein a through hole 284 is formed in the middle of the tray 282; the plate 282 is fixed in the valve chamber 110 by the insert 283, and the cleaning portion 280 can contact the valve cartridge 200 to remove impurities on the surface of the valve cartridge 200 when the valve cartridge 200 rotates in the valve chamber 110. The through-hole 284 ensures fluid flow within the valve body 100. When the valve cartridge 200 rotates in the valve chamber 110, it contacts the brush 281, thereby cleaning foreign substances on the surface of the valve cartridge 200. Meanwhile, as the air bag 220 protrudes out of the annular groove 210, impurities adhered to the brush 281 can be scraped off when the air bag 220 rotates, and the cleaning of the cleaning part 280 is ensured.

The invention also provides a heat exchanger 300 with a sealing structure, wherein the heat exchanger 300 comprises a box body 310 and a heat exchange plate group 320 arranged in the box body 310, the bottom of the box body 310 is provided with a water inlet 330, and the inlet 120 is communicated with the water inlet 330 of the heat exchanger 300.

The working principle is as follows: when the sealing is not needed, the motor 271 is started to drive the valve element 200 to rotate, and the valve element 200 contacts the brush 281 when rotating, so as to clean the material on the surface of the valve element 200. Meanwhile, since the air bag 220 protrudes out of the annular groove 210, impurities adhered to the brush 281 can be scraped off when the air bag 220 rotates, and the cleaning of the cleaning part 280 is ensured.

When sealing is required, the motor 271 is activated to block the valve element 200 from the inlet 120 of the valve chamber 110. Then, air is introduced into the air hole 140, and the air blows the sealing block 150, so that the sealing block 150 is pressed to deform towards the valve core 200, thereby blocking the notch of the annular groove 210 on the valve core 200, and two contact parts are arranged between the sealing block 150 and the notch of the annular groove 210, so that the sealing block 150 has a double sealing effect. At the same time, the sealing block 150 can press the air bag 220, the air bag 220 is pressed to move towards the other end, and the air bag 220 is communicated with the sealing ring 230, so that the air is filled into the sealing ring 230, and the sealing ring 230 is expanded to be attached to the inner wall of the valve cavity 110, thereby realizing the third sealing.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.