CN-121993834-A - Expansion tank, water supplementing system, hydraulic module and heating unit

Abstract

The invention discloses an expansion tank, a water supplementing system, a hydraulic module and a heating unit. The expansion tank is used for a water supplementing system and comprises a tank body, a connecting piece and a clamping piece, wherein one of a first connecting portion and a second connecting portion is arranged on the tank body, the other one of the first connecting portion and the second connecting portion is arranged on the connecting piece, an insertion space is arranged in the first connecting portion, a first clamping groove communicated with the insertion space is formed in the first connecting portion, a second clamping groove is formed in the outer side face of the second connecting portion, the second connecting portion is inserted into the insertion space, and the clamping piece detachably penetrates through the first clamping groove and the second clamping groove to enable the tank body to be fixedly connected with the connecting piece through the first connecting portion and the second connecting portion. Through set up first draw-in groove and second draw-in groove on jar body and connecting piece for the joint piece can be fixed jar body and connecting piece after inserting first draw-in groove and second draw-in groove, and does not need the participation of erection equipment in the installation of expansion tank, can reduce water supply system area, and dismantle simply.

Inventors

• LI YANG
• Zhan Linmin
• ZHAO HAOWEI
• XU LIQIAN
• HUANG JUNGE
• LI HAOBIAO
• CHEN CHAO

Assignees

• 广东美的暖通设备有限公司
• 合肥美的暖通设备有限公司

Dates

Publication Date

20260508

Application Date

20241104

Claims (15)

1. 1. An expansion tank for a water replenishment system, the expansion tank comprising: the tank body, the connecting piece and the clamping piece; One of the first connecting part and the second connecting part is arranged on the tank body; the connecting piece is equipped with first connecting portion with the other of second connecting portion, be equipped with in the first connecting portion and insert the space, be equipped with the intercommunication on the first connecting portion insert the first draw-in groove in space, be equipped with the second draw-in groove on the lateral surface of second connecting portion, the second connecting portion peg graft in insert in the space, the joint piece detachably wears to establish first draw-in groove with the second draw-in groove makes the jar body with the connecting piece passes through first connecting portion with second connecting portion fixed connection.
2. 2. The expansion tank of claim 1, wherein the tank body is provided with the second connecting portion, the connecting member is provided with the first connecting portion, the expansion tank comprises an air bag, the tank body comprises a containing cavity and a through hole, the through hole is communicated with the containing cavity and the insertion space, the air bag is arranged in the containing cavity and penetrates through the through hole, and the air bag is tightly attached to the inner wall of the insertion space.
3. 3. The expansion tank according to claim 2, wherein the tank body is provided with the second connecting portion, the connecting member is provided with the first connecting portion, one end of the air bag is formed with a fixing groove, one end of the second connecting portion extends to form a fixing plate, and the fixing plate is engaged with the fixing groove to fix the air bag with the tank body.
4. 4. The expansion tank according to claim 2, wherein the insertion space has a tapered shape in the air bag installation direction.
5. 5. The expansion tank of claim 1, wherein at least one limiting groove is formed in one of the inner wall of the insertion space and the outer wall of the second connecting portion, the limiting groove is separated from the first clamping groove and the second clamping groove, the expansion tank at least comprises a sealing ring, each sealing ring is embedded in a corresponding limiting groove, and the sealing rings are connected with the first connecting portion and the second connecting portion in a sealing mode.
6. 6. The expansion tank of claim 5, wherein the seal ring is interference fit between the first and second connection portions.
7. 7. The expansion tank of claim 5, wherein the seal ring is an O-ring seal.
8. 8. Expansion tank according to claim 1, wherein a boss is formed on the inner wall of the insertion space, the expansion tank comprising a flat gasket arranged between the boss and the end face of the second connection portion.
9. 9. The expansion tank of claim 1, wherein the clamping member comprises two clamping arms and a connecting arm, the two clamping arms are respectively connected with two opposite ends of the connecting arm, the clamping arms penetrate through the first clamping groove and the second clamping groove, each clamping arm is provided with a clamping portion, the clamping portions are embedded in the second clamping groove, and the two clamping portions clamp the second connecting portion.
10. 10. The expansion tank of claim 9, wherein the shape of the clamping portion is adapted to the shape of the peripheral edge of the second connecting portion provided with the second clamping groove.
11. 11. The expansion tank of any of claims 1-10, comprising an air bladder, the air bladder comprising a liquid storage chamber, a water inlet flange movably connected to the water outlet, the water outlet communicating with the insertion space, the water inlet flange configured to seal the liquid storage chamber or to communicate the liquid storage chamber with the water outlet.
12. 12. A water replenishment system comprising an expansion tank according to any one of claims 1-11.
13. 13. The water replenishment system according to claim 12, wherein the water replenishment system comprises a first pipe, a second pipe, a pneumatic valve, a safety valve, a constant pressure replenishment valve, a backflow prevention valve, a soft water filter, a first replenishment ball valve and a second replenishment ball valve, wherein the expansion tank is connected with the first pipe through the pneumatic valve, and the safety valve, the constant pressure replenishment valve, the backflow prevention valve, the soft water filter and the first replenishment ball valve are sequentially arranged on the first pipe, the second pipe is connected with the first pipe, and the second replenishment ball valve is arranged on the second pipe.
14. 14. A hydraulic module comprising the water replenishment system of claim 12 or 13.
15. 15. A heating unit comprising an expansion tank according to any one of claims 1-11 or a water replenishment system according to claim 12 or 13, or a hydraulic module according to claim 14.

Description

Expansion tank, water supplementing system, hydraulic module and heating unit Technical Field The invention relates to the technical field of heating, in particular to an expansion tank, a water supplementing system, a hydraulic module and a heating unit. Background In the related art, an expansion tank in a water replenishing system is connected with a water supply pipe by using a flat gasket and threads, the installation structure is complex, and a space for installing the expansion tank by using installation equipment is reserved in the water replenishing system, so that the occupied area of the water replenishing system is large, and the expansion tank is difficult to install and difficult to detach. Disclosure of Invention The embodiment of the invention provides an expansion tank, a water replenishing system, a hydraulic module and a heating unit, which can solve or improve the technical problems that the expansion tank occupies a large area and is difficult to install and detach due to the fact that a space for installing equipment to install the expansion tank is reserved in the water replenishing system. The expansion tank comprises a tank body, a connecting piece and a clamping piece, wherein one of a first connecting portion and a second connecting portion is arranged on the tank body, the other one of the first connecting portion and the second connecting portion is arranged on the connecting piece, an insertion space is formed in the first connecting portion, a first clamping groove communicated with the insertion space is formed in the first connecting portion, a second clamping groove is formed in the outer side face of the second connecting portion, the second connecting portion is inserted into the insertion space, and the clamping piece detachably penetrates through the first clamping groove and the second clamping groove to enable the tank body to be fixedly connected with the connecting piece through the first connecting portion and the second connecting portion. So, through set up first draw-in groove and second draw-in groove on jar body and connecting piece for the joint spare can be fixed jar body and connecting piece after inserting first draw-in groove and second draw-in groove, thereby can fix the expansion tank, and in the dismantlement process, pull out the joint spare from first draw-in groove and second draw-in groove, can be with jar body and connecting piece separation. Therefore, the participation of installation equipment is not needed in the installation process of the expansion tank, so that the space for accommodating the installation equipment is not needed to be reserved in the water replenishing system, the occupied area of the water replenishing system can be reduced, and the disassembly is simple. In some embodiments, the tank body is provided with the second connecting portion, the connecting piece is provided with the first connecting portion, the expansion tank comprises an air bag, the tank body comprises a containing cavity and a through hole, the through hole is communicated with the containing cavity and the insertion space, the air bag is arranged in the containing cavity and penetrates through the through hole, and the air bag is tightly attached to the inner wall of the insertion space. Therefore, by arranging the air bags in the expansion tank, additional domestic water can be stored, and when the heating unit lacks water, the domestic water in the air bags can be supplemented into the heating unit. Through closely laminating the gasbag with the inner wall of inserting the space to in the installation, owing to receive the effect of gasbag and jar body dead weight, can seal the gap of first connecting portion and second connecting portion, improve the leakproofness of expansion tank. In some embodiments, the tank body is provided with the second connecting portion, the connecting piece is provided with the first connecting portion, one end of the air bag is provided with a fixing groove, one end of the second connecting portion extends to form a fixing plate, and the fixing plate is embedded with the fixing groove so that the air bag is fixed with the tank body. Therefore, the air bag and the tank body are fixed by the embedding of the fixing plate and the fixing groove, so that additional fixing equipment is not needed to fix the air bag and the tank body, and the air bag tank is convenient to install and detach. In some embodiments, the insertion space has a tapered shape along the balloon mounting direction. So, through setting up the shape of inserting the space to the tapering along the gasbag installation direction to when the gasbag is installed along the installation square, can make the gasbag and insert the inner wall in space and further closely laminate, improve the leakproofness. In some embodiments, at least one limiting groove is formed in one of the inner wall of the insertion space and the outer wall of the second connecting portion, the