CN218764654U - Communicated water chamber with support capable of realizing displacement compensation - Google Patents
Communicated water chamber with support capable of realizing displacement compensation Download PDFInfo
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- CN218764654U CN218764654U CN202222916430.0U CN202222916430U CN218764654U CN 218764654 U CN218764654 U CN 218764654U CN 202222916430 U CN202222916430 U CN 202222916430U CN 218764654 U CN218764654 U CN 218764654U
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Abstract
The utility model provides a take intercommunication hydroecium that can realize displacement compensation of support, it relates to electric power industry condenser hydroecium field. The utility model provides a different problem of the thermal displacement difference that leads to of current condenser casing and heat exchange tube coefficient of thermal expansion. The utility model discloses a both ends difference fixedly connected with intercommunication hydroecium tube sheet A and intercommunication hydroecium tube sheet B around the intercommunication hydroecium casing, intercommunication hydroecium compensation festival A one end is connected with intercommunication hydroecium tube sheet A one end, the intercommunication hydroecium compensation festival A other end and condenser low pressure side shell attach, intercommunication hydroecium compensation festival B one end is connected with intercommunication hydroecium tube sheet B one end, the intercommunication hydroecium compensation festival B other end and condenser high pressure side shell attach, both ends respectively with intercommunication hydroecium support A and intercommunication hydroecium support B and condenser low pressure side shell and condenser high pressure side shell along horizontal direction slidable connection around the intercommunication hydroecium casing bottom. The utility model is used for realize compensating condenser casing and heat exchange tube heat displacement difference.
Description
Technical Field
The utility model relates to an electric power industry condenser hydroecium field, in particular to take intercommunication hydroecium that can realize displacement compensation of support.
Background
The condenser is supported by a spring, a dead point is positioned on a low-pressure cylinder, the condenser comprises a low-pressure side shell, a high-pressure side shell, two front water chambers, two communicating water chambers and two rear water chambers, and the low-pressure side shell and the high-pressure side shell of the condenser are connected through the middle communicating water chamber. And after flowing out of the low-pressure side heat exchange tube, the condenser cooling water enters the high-pressure side heat exchange tube through the middle communicated water chamber and exchanges heat with steam in the low-pressure side shell and the high-pressure side shell. However, the front end and the rear end of the existing intermediate communication water chamber are respectively and directly fixedly connected with the low-pressure side shell and the high-pressure side shell of the condenser. The condenser shell and the heat exchange tube are made of different materials and have different thermal expansion coefficients, and in the operation process of the condenser, due to the difference of thermal displacement between the heat exchange tube and the shell, larger tensile stress is generated between the heat exchange tube and the tube plate, the tensile stress is concentrated at the welding position of the heat exchange tube and the tube plate, and further, the welding seam between the heat exchange tube and the tube plate is cracked, so that serious influence is caused. In order to solve the problem of thermal displacement difference caused by different thermal expansion coefficients of the existing condenser shell and the heat exchange tube, a communicated water chamber with a support and capable of realizing displacement compensation is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem of the different thermal displacement difference that leads to of current condenser casing and heat exchange tube coefficient of thermal expansion, and then provide a take intercommunication hydroecium that can realize displacement compensation of support.
The technical scheme of the utility model is that:
a communicating water chamber with a support and capable of realizing displacement compensation is a condenser communicating water chamber 1-2, the condenser communicating water chamber 1-2 is positioned between a casing 1-1 on a low-pressure side of the condenser and a casing 1-3 on a high-pressure side of the condenser, one end of the condenser communicating water chamber 1-2 is connected with the casing 1-1 on the low-pressure side of the condenser, the other end of the condenser communicating water chamber 1-2 is connected with the casing 1-3 on the high-pressure side of the condenser, the condenser communicating water chamber 1-2 comprises a communicating water chamber compensating joint A2-1, a communicating water chamber pipe plate A2-2, a communicating water chamber casing 2-3, a communicating water chamber B2-4, a communicating water chamber compensating joint B2-5, a communicating water chamber support A2-6 and a communicating water chamber support B2-7, the communicating water chamber shell 2-3 is positioned between the shell 1-1 on the low pressure side of the condenser and the shell 1-3 on the high pressure side of the condenser, the front end and the rear end of the communicating water chamber shell 2-3 are respectively and fixedly connected with a communicating water chamber tube plate A2-2 and a communicating water chamber tube plate B2-4, one end of the communicating water chamber compensation joint A2-1 is connected with one end of the communicating water chamber tube plate A2-2 far away from the communicating water chamber shell 2-3, the other end of the communicating water chamber compensation joint A2-1 is connected with the shell 1-1 on the low pressure side of the condenser, one end of the communicating water chamber compensation joint B2-5 is connected with one end of the communicating water chamber tube plate B2-4 far away from the communicating water chamber shell 2-3, the other end of the communicating water chamber compensation joint B2-5 is connected with the shell 1-3 on the high pressure side of the condenser, and the front end and the rear end of the bottom of the communicating water chamber shell 2-3 are respectively connected with a communicating water chamber support A2-6 and a support B2-3 And the-7 is connected with the shell 1-1 on the low-pressure side of the condenser and the shell 1-3 on the high-pressure side of the condenser in a sliding mode along the horizontal direction, and therefore displacement compensation in the horizontal direction is achieved.
Furthermore, the communicated water chamber support A2-6 and the communicated water chamber support B2-7 are of symmetrical structures.
Further, the communicated water chamber support A2-6 comprises a right-angled triangle supporting structure and an I-shaped supporting structure, one right-angled side of the right-angled triangle supporting structure is vertically fixed on the shell 1-1 on the low-pressure side of the condenser, the other right-angled side of the right-angled triangle supporting structure is horizontally arranged, a horizontal sliding groove is processed in the upper end face of the right-angled triangle supporting structure along the length direction of the communicated water chamber shell 2-3, a wing plate at the top end of the I-shaped supporting structure is fixedly connected with the communicated water chamber shell 2-3, and a wing plate at the bottom end of the I-shaped supporting structure is slidably connected with the horizontal sliding groove of the right-angled triangle supporting structure.
Further, the I-shaped supporting structure comprises an I-shaped supporting structure body, a T-shaped bottom plate and two connecting bolts, the top end of the I-shaped supporting structure body is fixedly connected with the communicated water chamber shell 2-3, the top end of the T-shaped bottom plate is connected with the bottom end of the I-shaped supporting structure body through the two connecting bolts, and the bottom end of the T-shaped bottom plate is slidably connected with a horizontal chute of the right-angled triangular supporting structure.
Furthermore, a plurality of heat exchange tube assembly holes A connected with the low-pressure side heat exchange tubes are processed in the communicated water chamber tube plate A2-2, one ends of the plurality of low-pressure side heat exchange tubes are hermetically inserted in the plurality of heat exchange tube assembly holes A communicated with the water chamber tube plate A2-2, and the other ends of the plurality of low-pressure side heat exchange tubes penetrate through the condenser low-pressure side shell 1-1 and are hermetically inserted in the plurality of heat exchange tube assembly holes C in the front water chamber tube plate 1-4.
Further, the front end of the condenser communicated water chamber 1-2 is communicated with the front water chamber 1-5 through a plurality of low-pressure side heat exchange tubes.
Furthermore, a plurality of heat exchange tube assembly holes B connected with the high-pressure side heat exchange tubes are processed in the communicated water chamber tube plates B2-4, one ends of the plurality of high-pressure side heat exchange tubes are hermetically inserted in the plurality of heat exchange tube assembly holes B of the communicated water chamber tube plates B2-4, and the other ends of the plurality of high-pressure side heat exchange tubes penetrate through the condenser high-pressure side shell 1-3 and are hermetically inserted in the plurality of heat exchange tube assembly holes D in the rear water chamber tube plates 1-6.
Further, the rear end of the condenser communicated water chamber 1-2 is communicated with the rear water chamber 1-7 through a plurality of high-pressure side heat exchange tubes.
Further, the condenser communicated water chamber 1-2 adopts a rectangular structure.
Compared with the prior art, the utility model has the following effect:
1. the utility model discloses a condenser low pressure side shell 1-1 is connected with the low pressure side heat exchange tube through intercommunication hydroecium compensation festival A2-1, intercommunication hydroecium tube sheet A2-2, compensates low pressure side heat exchange tube and intercommunication hydroecium tube sheet A2-2 displacement difference by intercommunication hydroecium compensation festival A2-1. The shell 1-3 on the high-pressure side of the condenser is connected with the heat exchange tube on the high-pressure side through a communicating water chamber compensation joint B2-5 and a communicating water chamber tube plate B2-4, and the communicating water chamber compensation joint B2-5 compensates the displacement difference between the heat exchange tube on the high-pressure side and the communicating water chamber tube plate B2-4.
2. The utility model discloses a intercommunication hydroecium casing 2-3 lower part sets up intercommunication hydroecium support A2-6 and intercommunication hydroecium support B2-7, carries out the rigidity to condenser intercommunication hydroecium 1-2 and supports, and intercommunication hydroecium support A2-6 is installed on condenser low pressure side shell 1-1, and intercommunication hydroecium support B2-7 is installed on condenser high pressure side shell 1-3, and intercommunication hydroecium support A2-6 and intercommunication hydroecium support B2-7 all adopt slidable structure, can satisfy the displacement compensation function of condenser intercommunication hydroecium 1-2.
Drawings
FIG. 1 is a schematic view of the connection between the communicating water chamber with the support and capable of realizing displacement compensation and the casing of the high-pressure side and the low-pressure side of the condenser;
fig. 2 is a schematic structural diagram of the communicating water chamber with the support capable of realizing displacement compensation of the present invention.
In the figure: a condenser low-pressure side shell 1-1; the condenser is communicated with the water chamber 1-2; a condenser high-pressure side shell 1-3; front water chamber tube plates 1-4; 1-5 parts of a front water chamber; a rear water chamber tube plate 1-6; 1-7 parts of a rear water chamber; a compensation joint A2-1 of the water chamber is communicated; a water chamber tube plate A2-2 is communicated; the water chamber shell 2-3 is communicated; a water chamber tube plate B2-4 is communicated; a compensation joint B2-5 of the communicated water chamber; the water chamber support A2-6 is communicated; and the water chamber support B2-7 is communicated.
Detailed Description
The first embodiment is as follows: referring to FIGS. 1 and 2, the displacement compensation enabled communicating water chamber with a support of the present embodiment is a condenser communicating water chamber 1-2, the condenser communicating water chamber 1-2 is located between a condenser low pressure side housing 1-1 and a condenser high pressure side housing 1-3, one end of the condenser communicating water chamber 1-2 is connected with the condenser low pressure side housing 1-1, the other end of the condenser communicating water chamber 1-2 is connected with the condenser high pressure side housing 1-3, the condenser communicating water chamber 1-2 comprises a communicating water chamber compensation throttle A2-1, a communicating water chamber A2-2, a communicating water chamber housing 2-3, a communicating tube plate B2-4, a communicating water chamber compensation throttle B2-5, a communicating water chamber support A2-6 and a communicating water chamber support B2-7, the communicating water chamber housing 2-3 is located between the condenser low pressure side housing 1-1 and a condenser high pressure side housing 1-3, the communicating tube plate B2-3 is connected with the compensating water chamber 2-3, the compensating water chamber A2-4 is connected with the compensating water chamber A2-3, the compensating water chamber A2-3 is connected with the compensating water chamber 2, the compensating water chamber A-2-3, the compensating water chamber 2-2 is connected with the compensating water chamber 2-3, the compensating water chamber A2-3, the front end and the rear end of the bottom of the communicated water chamber shell 2-3 are respectively connected with a communicated water chamber support A2-6 and a communicated water chamber support B2-7, and the condenser low-pressure side shell 1-1 and the condenser high-pressure side shell 1-3 in a slidable manner along the horizontal direction, so that displacement compensation in the horizontal direction is realized.
The second embodiment is as follows: the present embodiment will be described with reference to fig. 2, in which the communicating header holder A2-6 and the communicating header holder B2-7 have a symmetrical structure. According to the arrangement, the communicated water chamber support A2-6 and the communicated water chamber support B2-7 are symmetrically arranged below the communicated water chamber shell 2-3 and used for supporting the communicated water chamber shell 2-3, the communicated water chamber support A2-6 and the communicated water chamber support B2-7 are fixed on the shell of the high-pressure side shell and the shell of the low-pressure side shell through triangular structures respectively, so that the communicated water chamber 1-2 of the condenser with two flexibly connected ends is rigidly supported, and meanwhile, the communicated water chamber support A2-6 and the communicated water chamber support B2-7 are designed to be slidable, so that the displacement compensation function of the communicated water chamber 1-2 of the condenser in the horizontal direction is not influenced. Other components and connections are the same as in the first embodiment.
The third concrete implementation mode: the embodiment is described with reference to fig. 1 and 2, the communicating water chamber support A2-6 of the embodiment includes a right-angled triangle support structure and an i-shaped support structure, one right-angled side of the right-angled triangle support structure is vertically fixed on the casing 1-1 on the low-pressure side of the condenser, the other right-angled side of the right-angled triangle support structure is horizontally arranged, a horizontal chute is processed on the upper end surface of the right-angled triangle support structure along the length direction of the communicating water chamber casing 2-3, a top wing plate of the i-shaped support structure is fixedly connected with the communicating water chamber casing 2-3, and a bottom wing plate of the i-shaped support structure is slidably connected with the horizontal chute of the right-angled triangle support structure. According to the arrangement, the bottom of the front end of the communicated water chamber shell 2-3 is fixed on the shell 1-1 on the low-pressure side of the condenser through the right-angled triangle supporting structure, and the right-angled triangle supporting structure and the I-shaped supporting structure are designed in a sliding mode, so that the displacement compensation function of the communicated water chamber shell 2-3 in the horizontal direction is not affected. Other compositions and connections are the same as in the first or second embodiments.
The bottom of the rear end of the communicated water chamber shell 2-3 is supported by a communicated water chamber support B2-7, the communicated water chamber support B2-7 is arranged on the shell 1-3 on the high-pressure side of the condenser, and the working principle is communicated with a communicated water chamber support A2-6.
The fourth concrete implementation mode: the embodiment is described with reference to fig. 2, the i-shaped supporting structure of the embodiment includes an i-shaped supporting structure body, a T-shaped bottom plate and two connecting bolts, the top end of the i-shaped supporting structure body is fixedly connected with the communicating water chamber shell 2-3, the top end of the T-shaped bottom plate is connected with the bottom end of the i-shaped supporting structure body through the two connecting bolts, and the bottom end of the T-shaped bottom plate is slidably connected with the horizontal chute of the right-angled triangular supporting structure. Other compositions and connection relationships are the same as in the first, second or third embodiment.
The fifth concrete implementation mode: referring to fig. 1 and 2, the embodiment is described, wherein a plurality of heat exchange tube assembly holes a connected with the low-pressure side heat exchange tubes are formed in a communicating water chamber tube plate A2-2 of the embodiment, one ends of the plurality of low-pressure side heat exchange tubes are hermetically inserted into the plurality of heat exchange tube assembly holes a of the communicating water chamber tube plate A2-2, and the other ends of the plurality of low-pressure side heat exchange tubes penetrate through a low-pressure side shell 1-1 of the condenser and are hermetically inserted into a plurality of heat exchange tube assembly holes C formed in a front water chamber tube plate 1-4. With the arrangement, condenser cooling water exchanges heat with steam inside the condenser low-pressure side shell 1-1 in the low-pressure side heat exchange tube, flows out of the low-pressure side heat exchange tube, and flows into the condenser to communicate with the water chamber 1-2. Other compositions and connection relationships are the same as those in the first, second, third or fourth embodiment.
The sixth specific implementation mode: referring to fig. 1 and 2, the condenser communication water chamber 1-2 of the present embodiment is described, the front end of which communicates with the front water chamber 1-5 through a plurality of low-pressure side heat exchange tubes. Other compositions and connection relationships are the same as in the first, second, third, fourth or fifth embodiment.
The seventh embodiment: referring to fig. 1 and 2, the embodiment is described, wherein a plurality of heat exchange tube assembly holes B connected with the high-pressure side heat exchange tubes are formed in a communicating water chamber tube plate B2-4, one ends of the plurality of high-pressure side heat exchange tubes are hermetically inserted into the plurality of heat exchange tube assembly holes B of the communicating water chamber tube plate B2-4, and the other ends of the plurality of high-pressure side heat exchange tubes penetrate through a high-pressure side shell 1-3 of the condenser and are hermetically inserted into a plurality of heat exchange tube assembly holes D on a rear water chamber tube plate 1-6. With the arrangement, after flowing out of the low-pressure side heat exchange tube, the condenser cooling water is communicated with the water chamber 1-2 through the condenser, enters the high-pressure side heat exchange tube and exchanges heat with steam inside the high-pressure side shell 1-3 of the condenser. Other compositions and connection relations are the same as those of the first embodiment, the second embodiment, the third embodiment, the fourth embodiment, the fifth embodiment or the sixth embodiment.
The specific implementation mode is eight: referring to fig. 1 and 2, the rear end of the condenser communication water chamber 1-2 of the present embodiment is connected to the rear water chamber 1-7 through a plurality of high-pressure side heat exchange tubes. Other compositions and connection relationships are the same as those of embodiment one, two, three, four, five, six or seven.
The specific implementation method nine: the present embodiment will be described with reference to fig. 1 and 2, and the condenser communication water chamber 1-2 of the present embodiment has a rectangular configuration. So set up, condenser intercommunication hydroecium 1-2 of rectangle structure compares with condenser intercommunication hydroecium of current circular structure, can increase inside volume, improves heat exchange efficiency. Other compositions and connection relationships are the same as those in the first, second, third, fourth, fifth, sixth, seventh or eighth embodiment.
Principle of operation
The working principle of the communicating water chamber with the support and capable of realizing displacement compensation of the utility model is described with reference to fig. 1 and 2: the condenser cooling water exchanges heat with steam inside the condenser low-pressure side shell 1-1 in the low-pressure side heat exchange tube, flows out of the low-pressure side heat exchange tube, and flows into the condenser to communicate with the water chamber 1-2. The cooling water flowing into the condenser communicating water chamber 1-2 is communicated with the water chamber 1-2 through the condenser, enters the high-pressure side heat exchange tube and exchanges heat with the steam inside the condenser high-pressure side shell 1-3.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. The utility model provides a can realize intercommunication hydroecium of displacement compensation of area support, can realize the intercommunication hydroecium of displacement compensation of area support be condenser intercommunication hydroecium (1-2), condenser intercommunication hydroecium (1-2) is located between condenser low pressure side shell (1-1) and condenser high pressure side shell (1-3), condenser intercommunication hydroecium (1-2) one end is connected with condenser low pressure side shell (1-1), the condenser communicates hydroecium (1-2) other end and is connected with condenser high pressure side shell (1-3), its characterized in that: the condenser communicating water chamber (1-2) comprises a communicating water chamber compensation water saving A (2-1), a communicating water chamber tube plate A (2-2), a communicating water chamber shell (2-3), a communicating water chamber tube plate B (2-4), a communicating water chamber compensation water saving B (2-5), a communicating water chamber support A (2-6) and a communicating water chamber support B (2-7), the communicating water chamber shell (2-3) is positioned between the condenser low-pressure side shell (1-1) and the condenser high-pressure side shell (1-3), the front end and the rear end of the communicating water chamber shell (2-3) are respectively and fixedly connected with the communicating water chamber tube plate A (2-2) and the communicating water chamber tube plate B (2-4), one end of the communicating water chamber compensation water saving A (2-1) is connected with one end, far away from the communicating water chamber shell (2-3), of the communicating water chamber compensation water saving A (2-1), the other end of the communicating water chamber compensation water saving B (2-5) is connected with the condenser low-pressure side shell (1-1), the other end of the communicating water chamber compensation water saving B (2-5) is connected with the communicating water chamber shell (2-4), the front end and the compensating water chamber shell (3) and the other end of the communicating water chamber shell (2-3) are respectively connected with the compensating water chamber shell (3), and the compensating water chamber shell (2-3), and the other end of the compensating water chamber shell are respectively 6) And the water chamber support B (2-7) is communicated with the condenser low-pressure side shell (1-1) and the condenser high-pressure side shell (1-3) in a slidable connection along the horizontal direction, so that displacement compensation in the horizontal direction is realized.
2. The communicating water chamber with the support and capable of achieving the displacement compensation of the claim 1 is characterized in that: the communicated water chamber support A (2-6) and the communicated water chamber support B (2-7) are of symmetrical structures.
3. The communicating water chamber with the support and capable of achieving the displacement compensation of the claim 2 is characterized in that: the communicated water chamber support A (2-6) comprises a right-angled triangle supporting structure and an I-shaped supporting structure, one right-angled side of the right-angled triangle supporting structure is vertically fixed on a shell (1-1) on a low-pressure side of the condenser, the other right-angled side of the right-angled triangle supporting structure is horizontally arranged, a horizontal chute is processed on the upper end face of the right-angled triangle supporting structure along the length direction of the communicated water chamber shell (2-3), a wing plate at the top end of the I-shaped supporting structure is fixedly connected with the communicated water chamber shell (2-3), and a wing plate at the bottom end of the I-shaped supporting structure is slidably connected with the horizontal chute of the right-angled triangle supporting structure.
4. The communicating water chamber with the support and capable of achieving the displacement compensation of the claim 3 is characterized in that: the I-shaped supporting structure comprises an I-shaped supporting structure body, a T-shaped bottom plate and two connecting bolts, the top end of the I-shaped supporting structure body is fixedly connected with the communicated water chamber shell (2-3), the top end of the T-shaped bottom plate is connected with the bottom end of the I-shaped supporting structure body through the two connecting bolts, and the bottom end of the T-shaped bottom plate is slidably connected with a horizontal chute of the right-angled triangular supporting structure.
5. The communication water chamber with the support and capable of achieving the displacement compensation of the claim 1, the communication water chamber with the support and the support are characterized in that: a plurality of heat exchange tube assembly holes A connected with the low-pressure side heat exchange tubes are processed in the communicated water chamber tube plate A (2-2), one ends of the plurality of low-pressure side heat exchange tubes are hermetically inserted in the plurality of heat exchange tube assembly holes A of the communicated water chamber tube plate A (2-2), and the other ends of the plurality of low-pressure side heat exchange tubes penetrate through a shell (1-1) on the low-pressure side of the condenser and are hermetically inserted in a plurality of heat exchange tube assembly holes C in the front water chamber tube plate (1-4).
6. The communicating water chamber with the support and capable of achieving the displacement compensation of the claim 5 is characterized in that: the front end of the condenser communicating water chamber (1-2) is communicated with the front water chamber (1-5) through a plurality of low-pressure side heat exchange tubes.
7. The communicating water chamber with the support and capable of achieving the displacement compensation of the claim 6 is characterized in that: a plurality of heat exchange tube assembly holes B connected with the high-pressure side heat exchange tubes are processed in the communicating water chamber tube plate B (2-4), one ends of the plurality of high-pressure side heat exchange tubes are hermetically inserted in the plurality of heat exchange tube assembly holes B of the communicating water chamber tube plate B (2-4), and the other ends of the plurality of high-pressure side heat exchange tubes penetrate through a condenser high-pressure side shell (1-3) and are hermetically inserted in a plurality of heat exchange tube assembly holes D in the rear water chamber tube plate (1-6).
8. The communicating water chamber with the support and capable of achieving the displacement compensation of the claim 7 is characterized in that: the rear end of the condenser communicating water chamber (1-2) is communicated with the rear water chamber (1-7) through a plurality of high-pressure side heat exchange tubes.
9. The communication water chamber with the support and capable of achieving the displacement compensation of the claim 1 or 8 is characterized in that: the condenser communicating water chamber (1-2) adopts a rectangular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222916430.0U CN218764654U (en) | 2022-10-31 | 2022-10-31 | Communicated water chamber with support capable of realizing displacement compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222916430.0U CN218764654U (en) | 2022-10-31 | 2022-10-31 | Communicated water chamber with support capable of realizing displacement compensation |
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| Publication Number | Publication Date |
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| CN218764654U true CN218764654U (en) | 2023-03-28 |
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| CN202222916430.0U Active CN218764654U (en) | 2022-10-31 | 2022-10-31 | Communicated water chamber with support capable of realizing displacement compensation |
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| CN (1) | CN218764654U (en) |
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