CN114177951A

CN114177951A - Cooling system, ion exchanger and resin filling device

Info

Publication number: CN114177951A
Application number: CN202111408722.7A
Authority: CN
Inventors: 邓龙龙; 王振; 肖凯; 梁宁; 邹延生
Original assignee: Maintenance and Test Center of Extra High Voltage Power Transmission Co
Current assignee: Maintenance and Test Center of Extra High Voltage Power Transmission Co
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-03-15

Abstract

The invention relates to a cooling system, an ion exchanger and a resin filling device. The cooling device is used for cooling the converter valve. The ion exchanger comprises a receiving cylinder and a resin filling device. The resin filling device comprises a filling assembly and a pneumatic assembly, wherein a filling cavity and a storage cavity are formed in the filling assembly, the filling cavity is used for filling resin, the storage cavity is used for storing new resin, a filling port and a ventilation port are further formed in the filling assembly, two sides of the filling port are respectively communicated with the filling cavity and the storage cavity, and the ventilation port is communicated with the filling cavity; the air pressure component is connected to the air vent, and the air pressure component can increase or decrease the air pressure in the filling cavity. The automatic filling of resin is realized through the air pressure difference generated by the air pressure assembly, the workload of maintainers can be effectively reduced, and the filling efficiency of the resin is improved.

Description

Cooling system, ion exchanger and resin filling device

Technical Field

The present invention relates to the field of power equipment technology, and in particular, to a cooling system, an ion exchanger, and a resin filling device.

Background

The ion exchanger of the cooling system of the high-voltage direct-current converter valve is used for reducing the conductivity of cooling water in the converter valve and maintaining the conductivity at an extremely low level. Ion exchange resin is filled in the ion exchanger, and when the ion exchange resin fails, resin replacement work needs to be carried out. At present, ion exchange resin replacement of a converter valve cooling system of a high-voltage direct-current converter station is mainly completed manually, after invalid resin is emptied from the bottom of an ion exchanger, new resin is lifted to the top of the ion exchanger, and the new resin is manually filled into a tank body of the ion exchanger through a filling port at the top of the ion exchanger. The manual resin filling has the disadvantages of large resin filling amount, heavy workload of maintainers, inconvenient and unsafe manual resin filling operation and low working efficiency.

Disclosure of Invention

In view of the above, it is desirable to provide a cooling system, an ion exchanger and a resin filling apparatus which are convenient and fast.

A resin filling device comprises a filling assembly and a pneumatic assembly, wherein a filling cavity and a storage cavity are formed in the filling assembly, the filling cavity is used for filling resin, the storage cavity is used for storing new resin, a filling port and a ventilating port are formed in the filling assembly, two sides of the filling port are respectively communicated with the filling cavity and the storage cavity, and the ventilating port is communicated with the filling cavity; the air pressure component is connected to the air vent, and the air pressure component can increase or decrease the air pressure in the filling cavity.

In one embodiment, the filling assembly comprises a filling cylinder, a first conveying pipe and a storage part, the filling cylinder is internally provided with the filling cavity, the filling opening and the ventilation opening are formed in the filling cylinder, the storage part is internally provided with the storage cavity, one end of the first conveying pipe is connected into the storage part and communicated with the storage cavity, and the other end of the first conveying pipe is connected with the filling cylinder and communicated with the filling cavity.

In one embodiment, the filling assembly further comprises a first guide pipe, the first guide pipe is arranged in the filling port in a penetrating mode, one end of the first guide pipe is connected with the first conveying pipe, the other end of the first guide pipe is located in the filling cavity, and the other end of the first guide pipe is bent towards the bottom wall of the filling cavity in a non-straight angle or a non-zero angle.

In one embodiment, the pneumatic assembly comprises a second delivery pipe and a gas exchanger, one end of the second delivery pipe is connected with the filling cylinder and communicated with the filling cavity, the other end of the second delivery pipe is connected with the gas exchanger, and the gas exchanger can deliver air into the filling cavity or exhaust air in the filling cavity through the second delivery pipe so as to increase or decrease the pneumatic pressure in the filling cavity.

In one embodiment, the pneumatic assembly further includes a second conduit pipe, the second conduit pipe is inserted into the ventilation port, one end of the second conduit pipe is connected to the second delivery pipe, the other end of the second conduit pipe is located in the filling cavity, and the other end of the second conduit pipe, which faces away from the bottom wall of the filling cavity, is bent at a non-straight angle or a non-zero angle.

In one embodiment, the resin filling apparatus further includes an on-off valve provided on the first conduit, the on-off valve being capable of controlling on/off of the first conduit.

In one embodiment, the resin filling device further comprises a pressure gauge, the pressure gauge is arranged on the filling cylinder and used for detecting the air pressure in the filling cavity; the pressure gauge is electrically connected with the switch valve, and when the pressure gauge detects that the air pressure in the filling cavity reaches a preset value, the switch valve can be opened or closed.

An ion exchanger comprising a receiving tank and a resin charging device as described above. A receiving cavity is formed in the receiving cylinder; the resin filling device is connected with the receiving cylinder, the filling cavity is communicated with the receiving cavity, and the new resin can fall into the receiving cavity from the filling cavity.

In one embodiment, the receiving cylinder is provided with a discharge port, the discharge port is communicated with the receiving cavity, the discharge port is used for discharging the resin in the receiving cavity, and the positions of the filling port and the ventilation port in the gravity direction are higher than the positions of the discharge port in the gravity direction.

A cooling system comprising a cooling device and an ion exchanger as described above, the cooling device having a cooling fluid therein, the cooling device being for cooling a converter valve; the cooling device is connected with the ion exchanger.

When the cooling system and the ion exchanger operate, the resin in the ion exchanger receiving cavity can adsorb anions and cations in the cooling liquid. After a period of operation, the resin in the receiving chamber becomes spent and needs to be replaced, while new resin is placed in the storage chamber. When new resin is filled in need, the air pressure component can reduce the air pressure in the filling cavity, so that the air pressure in the filling cavity is lower than the air pressure in the storage cavity, and the air pressure difference can cause the new resin in the storage cavity to move towards the filling cavity and fall into the receiving cavity, thereby realizing the filling of the new resin. The automatic filling of resin is realized through the air pressure difference produced by the air pressure assembly, the workload of maintainers can be effectively reduced, and meanwhile, the resin filling device is simple and rapid to operate, safe and reliable, and the filling efficiency of the resin is ensured.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced 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 creative efforts.

FIG. 1 is a schematic structural view of a resin charging apparatus in one embodiment;

fig. 2 is a side view of the resin filling apparatus in the embodiment of fig. 1.

The elements in the figure are labeled as follows:

10. a resin filling device; 100. a priming assembly; 110. a filling cylinder; 111. a loading chamber; 112. a resin; 113. a filling port; 114. a ventilation port; 120. a storage member; 121. a storage chamber; 122. a new resin; 130. a first delivery pipe; 140. a first conduit; 200. an air pressure assembly; 210. a gas exchanger; 220. a second delivery pipe; 230. a second conduit; 240. a pressure gauge; 300. a receiving drum; 310. a receiving cavity.

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. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Referring to fig. 1 and 2, the cooling system in one embodiment includes a cooling device and an ion exchanger. The cooling device is filled with cooling liquid. The cooling device is used for cooling the converter valve. The cooling device is connected with the ion exchanger. The ion exchanger includes a resin charging device 10 and a receiving drum 300. The resin filling device 10 comprises a filling assembly 100 and an air pressure assembly 200, wherein a filling cavity 111 and a storage cavity 121 are formed in the filling assembly 100, the filling cavity 111 is used for filling resin 112, the storage cavity 121 is used for storing new resin 122, a filling port 113 and a ventilation port 114 are further formed in the filling assembly 100, two sides of the filling port 113 are respectively communicated with the filling cavity 111 and the storage cavity 121, and the ventilation port 114 is communicated with the filling cavity 111; the air pressure assembly 200 is connected to the venting port 114, and the air pressure assembly 200 can increase or decrease the air pressure in the loading chamber 111. A receiving chamber 310 is formed in the receiving cylinder 300; the resin filling device 10 is connected to the receiving cylinder 300, the filling chamber 111 communicates with the receiving chamber 310, and new resin 122 can fall from the filling chamber 111 into the receiving chamber 310.

The resin 112 in the receiving chamber 310 is capable of adsorbing anions and cations in the cooling fluid when the cooling system and the ion exchanger are in operation. After a period of operation, the resin 112 in the receiving chamber 310 fails and needs to be replaced, and new resin 122 is placed in the storage chamber 121. When it is desired to fill with new resin 122, the air pressure assembly 200 can reduce the air pressure in the filling chamber 111 so that the air pressure in the filling chamber 111 is lower than the air pressure in the storage chamber 121, and the air pressure difference can cause the new resin 122 in the storage chamber 121 to move into the filling chamber 111 and fall into the receiving chamber 310, thereby achieving filling of the new resin 122. The automatic filling of the new resin 122 can be realized by generating the air pressure difference through the air pressure component 200, the workload of maintainers can be effectively reduced, and meanwhile, the resin filling device 10 is simple and rapid to operate, safe and reliable, and the filling efficiency of the new resin 122 is ensured.

In one embodiment, the receiving cylinder 300 is provided with a discharge port, the discharge port is communicated with the receiving cavity 310, the discharge port is used for discharging the resin in the receiving cavity 310, and the positions of the filling port 113 and the scavenging port 114 in the gravity direction are higher than the positions of the discharge port in the gravity direction. When the resin 112 in the ion exchanger needs to be replaced, the outlet on the receiving cylinder 300 is opened to discharge the resin 112 in the receiving cavity 310, and the air pressure assembly 200 is opened to convey air into the filling cavity 111, so that the air pressure in the filling cavity 111 and the receiving cavity 310 is greater than the external air pressure, the resin 112 in the receiving cavity 310 can be accelerated to be discharged to the outside under the pushing of the air pressure difference, and the replacement efficiency of the resin 112 is further improved. After the resin 112 in the receiving chamber 310 is exhausted, the exhaust port is closed,

specifically, the priming cartridge 110 and the receiving cartridge 300 are sealingly connected by flanges. The discharge port is located at the bottom end of the receiving cylinder 300. The discharge of the resin 112 can be more facilitated while ensuring that the resin 112 in the receiving cylinder 300 is completely discharged. The transfer ports 114 are near the top end of the cartridge 110. It is ensured that the air pressure assembly 200 is not disturbed by other components or substances when adjusting the air pressure in the loading chamber 111. The structural rationality of the resin charging device 10 is ensured. The loading port 113 is near the bottom end of the loading drum 110. It can be ensured that the pneumatic assembly 200 is not affected when the new resin 122 is filled, but the pneumatic adjustment of the pneumatic assembly 200 is sensed clearly. The structural rationality, practicality and reliability of the resin charging device 10 are ensured.

In one embodiment, the priming assembly 100 includes a priming cartridge 110, a first delivery tube 130, and a storage element 120. A loading chamber 111 is formed in the loading cartridge 110. The filling cylinder 110 is provided with a filling port 113 and a ventilation port 114. A storage chamber 121 is formed in the storage member 120. One end of the first delivery pipe 130 is connected to the storage member 120 and communicates with the storage chamber 111, and the other end of the first delivery pipe 130 is connected to the priming cartridge 110 and communicates with the priming chamber 111. The storage chamber 121 of the storage member 120 is used for storing new resin 122, and the storage member 120 and the filling cylinder 110 are communicated through a first transfer pipe 130. After the air pressure in the filling cavity 111 is reduced by the air pressure assembly 200, the storage cavity 121 of the storage member 120 and the filling cavity 111 have an air pressure difference, and the new resin 122 in the storage cavity 121 is pushed by the air pressure difference to move into the filling cavity 111 through the first conveying pipe 130 and fall into the receiving cavity 310, so that the automatic filling of the new resin 122 is realized, the filling efficiency of the new resin 122 is improved, and the workload of a maintainer is reduced.

Further, the storage member 120 is opened with a communication port. The communication port communicates with the storage chamber 121. One end of the first delivery tube 130 passes through the communication port and into the storage chamber 121. The communicating port is communicated with the external atmospheric pressure. The communication port on the storage member 120 can facilitate the addition of new resin 122 by the service personnel. Since the communication port is communicated with the outside atmospheric pressure, the atmospheric pressure in the storage chamber 121 is the outside atmospheric pressure. When the air pressure in the charging cylinder 110 is less than the atmospheric pressure of the external environment, the new resin 122 can move into the charging chamber 111 through the first transfer pipe 130 by the push of the air pressure difference. The storage member 120 may be a cartridge or a storage box, or other storage device, as long as the new resin 122 can be stored.

In one embodiment, the loading assembly 100 further includes a first conduit 140. A first conduit 140 is disposed through the fill port 113. One end of the first guide tube 140 is connected to the first delivery tube 130, and the other end of the first guide tube 140 is located in the loading chamber 111. The other end of the first conduit 140 is bent toward the bottom wall of the loading chamber 111 at a non-flat or non-zero angle. The first conduit 140 can facilitate attachment of the first delivery tube 130 to the loading cartridge 110. Since the other end of the first conduit 140 is bent toward the bottom wall of the loading chamber 111 at a non-flat or non-zero angle. It is possible to provide a guide for the new resin 122 to move within the first delivery pipe 130 so that the new resin 122 can fall into the receiving chamber 310 more stably and quickly, thereby improving the packing efficiency of the new resin 122. Further, the other end of the first guide duct 140 is bent at an angle ranging from 45 ° to 120 °. Specifically, the other end of the first conduit 140 is bent 90 ° toward the bottom wall of the loading chamber 111.

In one embodiment, the air pressure assembly 200 includes a second delivery tube 220 and a gas exchanger 210. One end of the second delivery pipe 220 communicates with the filling chamber 111, and the other end of the second delivery pipe 220 is connected to the gas exchanger 210. The gas exchanger 210 can supply air into the loading chamber 111 or exhaust air from the loading chamber 111 through the second delivery pipe 220 to increase or decrease the pressure of the air in the loading chamber 111. The gas exchanger 210 adjusts the gas pressure in the filling chamber 111 through the second delivery pipe 220 to ensure the structural rationality of the resin filling apparatus 10.

In one embodiment, the pneumatic assembly 200 further includes a second conduit 230. A second conduit 230 is disposed through the ventilation port 114. One end of the second guide tube 230 is connected to the second delivery tube 220, and the other end of the second guide tube 230 is located in the loading chamber 111. The other end of the second conduit 230 is bent away from the bottom wall of the loading chamber 111 at a non-flat or non-zero angle. The other end of the second conduit 230 is bent toward the top wall of the loading chamber 111. The resin 122 is prevented from entering the second conduit 230, which affects the function of the gas exchanger 210. Further, the other end of the second conduit 230 is disposed proximate to the top wall of the loading chamber 111. The resin 122 can be further prevented from entering the second conduit 230. Further, the other end of the second guide duct 230 is bent at an angle ranging from 45 ° to 120 °. In particular, the other end of the second conduit 230 is bent 90 ° towards the top wall of the loading chamber 111.

In one embodiment, the air pressure assembly 200 further includes a filter screen. The filter screen is disposed in the other end of the second guide duct 230. The filter screen is capable of filtering the resin 122 from the air in the loading chamber 111 from entering the gas exchanger 210. The filter net can also filter impurities in the air input from the gas exchanger 210, avoiding contamination of the resin 112 in the filling chamber 111. A filter screen can also be installed in the gas exchanger 210.

In one embodiment, the resin filling apparatus 10 further includes an on-off valve. The switching valve is provided on the first guide duct 140. The on-off valve can control the on-off of the first conduit 140. The switch valve can turn off the first conduit 140 when the gas pressure assembly 200 inputs gas, so that the gas is prevented from overflowing from the filling port 113 to the external environment, the gas pressure in the filling cavity 111 is ensured to stably rise, and the structural reasonability of the resin filling device 10 is ensured.

In one embodiment, the resin charging device 10 further includes a pressure gauge 240. The pressure gauge 240 is provided on the cartridge 110. The pressure gauge 240 is used to detect the pressure of the gas in the loading chamber 111. The pressure gauge 240 is electrically connected to the on-off valve. The switch valve can be opened or closed when the pressure gauge 240 detects that the air pressure in the filling chamber 111 reaches a preset value. The pressure gauge 240 can detect the air pressure in the filling chamber 111, and prevent the air pressure in the filling chamber 111 from being too high or too low and damaging the structure of the filling cylinder 110. And the pressure gauge 240 is electrically connected with the switching valve. Therefore, when the pressure gauge 240 detects that the air pressure in the loading chamber 111 reaches a preset value, the pressure gauge 240 can send a signal to the on-off valve to open or close the on-off valve. For example, when the air pressure assembly 200 starts to inject air into the filling chamber 111, and the pressure gauge 240 detects that the air pressure in the filling chamber 111 rises, it will send a command to the switch valve to close the switch valve, so as to ensure that the air pressure in the filling chamber 111 stably rises. When the pressure in the filling chamber 111 is reduced by the pressure assembly 200, the pressure gauge 240 detects the reduction in the pressure in the filling chamber 111, and sends a command to the on-off valve to open the on-off valve, so that the pressure difference pushes the new resin 122 to move into the filling chamber 111. The pressure gauge 240 is linked with the on-off valve, so that the automation degree of the resin filling device 10 is improved, and the practicability of the resin filling device 10 is further improved.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the 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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may directly conflict with the first and second features, or the first and second features may indirectly conflict with each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A resin filling apparatus, characterized by comprising:

the filling assembly is internally provided with a filling cavity and a storage cavity, the filling cavity is used for filling resin, the storage cavity is used for storing new resin, the filling assembly is also provided with a filling port and a ventilation port, two sides of the filling port are respectively communicated with the filling cavity and the storage cavity, and the ventilation port is communicated with the filling cavity; and

the air pressure component is connected to the air vent, and the air pressure component can increase or decrease the air pressure in the filling cavity.

2. The resin filling apparatus according to claim 1, wherein the filling assembly includes a filling cylinder in which the filling chamber is formed, a first delivery pipe in which the filling port and the scavenging port are opened, and a storage member in which the storage chamber is formed, one end of the first delivery pipe being connected to the storage member and communicating with the storage chamber, and the other end of the first delivery pipe being connected to the filling cylinder and communicating with the filling chamber.

3. The resin filling apparatus according to claim 2, wherein the filling assembly further includes a first guide pipe, the first guide pipe is inserted into the filling port, one end of the first guide pipe is connected to the first delivery pipe, the other end of the first guide pipe is located in the filling chamber, and the other end of the first guide pipe is bent toward the bottom wall of the filling chamber at a non-straight angle or a non-zero angle.

4. The resin charging device according to claim 3, further comprising an on-off valve provided on the first conduit, the on-off valve being capable of controlling on/off of the first conduit.

5. The resin charging device according to claim 4, further comprising a pressure gauge provided on the charging cylinder, the pressure gauge being configured to detect an air pressure in the charging chamber; the pressure gauge is electrically connected with the switch valve, and when the pressure gauge detects that the air pressure in the filling cavity reaches a preset value, the switch valve can be opened or closed.

6. The resin charging device according to any one of claims 1 to 5, wherein the air pressure module includes a second delivery pipe having one end connected to the charging cylinder and communicating with the charging chamber and the other end connected to the gas exchanger, and the gas exchanger is capable of supplying air into the charging chamber or exhausting air from the charging chamber through the second delivery pipe to increase or decrease the air pressure in the charging chamber.

7. The resin filling apparatus according to claim 6, wherein the pneumatic assembly further includes a second guide tube, the second guide tube is inserted into the ventilation port, one end of the second guide tube is connected to the second delivery tube, the other end of the second guide tube is located in the filling cavity, and the other end of the second guide tube is bent away from the bottom wall of the filling cavity at a non-straight angle or a non-zero angle.

8. An ion exchanger, characterized in that the ion exchanger comprises:

a receiving cylinder with a receiving cavity formed therein

The resin charging device according to any one of claims 1 to 7, which is connected to the receiving cylinder, the charging chamber and the receiving chamber being in communication, the new resin being able to fall from the charging chamber into the receiving chamber.

9. The ion exchanger according to claim 8, wherein the receiving cylinder has a discharge port communicating with the receiving chamber, the discharge port is used for discharging the resin in the receiving chamber, and the filling port and the ventilation port are each located at a position higher in the direction of gravity than the discharge port.

10. A cooling system, characterized in that the cooling system comprises:

the cooling device is internally provided with cooling liquid and is used for cooling the converter valve;

the ion exchanger of claim 9, wherein the cooling means is connected to the ion exchanger.