Thermal deaerator control device

Abstract

The utility model discloses a control device for a thermal deaerator, which comprises a PID (Proportion Integration Differentiation) controller main body, and a connecting structure is arranged at the bottom of the PI controller main body; the connecting structure comprises a T-shaped block and a connecting plate; the top of the T-shaped block is inserted into an insertion hole formed in the bottom of the PID controller body. The two ends of the top of the T-shaped block are fixedly connected with the PI D controller body through fixing assemblies. The connecting plate is fixedly arranged at the bottom end of the T-shaped block; the fixing assembly comprises a movable block, a positioning block and a telescopic rod. The top of the movable block is movably arranged in the through hole A; the positioning block is fixedly arranged on one side of the top of the movable block; the positioning block is in penetrating fit with a through hole B formed in the side end of the top of the movable block; one end of the positioning block is in inserting fit with a positioning hole formed in the side wall of the inserting hole; the telescopic rod is arranged between the movable block and the T-shaped block; and a spring is arranged between the movable block and the T-shaped block. The utility model has the advantages that when the PI D controller main body is independently mounted, a connecting structure can be additionally mounted, and the PI D controller main body can be directly mounted on a thermal deaerator or a rack.

Description

Technical Field

[0001] This utility model relates to the field of thermal deaerator technology, specifically a thermal deaerator control device. Background Technology

[0002] A thermal deaerator is a device that removes dissolved oxygen and other non-condensable gases from water by heating it, and is mainly used in boiler feedwater systems. Controlling the thermal deaerator is crucial to ensuring its efficient and stable operation, and this is primarily achieved by adjusting parameters such as temperature, pressure, water level, and gas emissions.

[0003] According to Henry's Law, the water temperature must reach the saturation temperature at the corresponding pressure for dissolved oxygen to be effectively released. Thermal deaerators use a temperature sensor and a PID controller to monitor the temperature in real time and automatically adjust the steam valve opening. Generally, the PID controller is installed in a control cabinet; however, some thermal deaerator installation areas are unsuitable for control cabinets, requiring a separate PID controller, which is inconvenient to fix in a fixed location.

[0004] In view of this, we propose a control device for a thermal deaerator. Utility Model Content

[0005] The purpose of this invention is to provide a thermal deaerator control device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a thermal deaerator control device, comprising a PID controller body, wherein a connection structure is provided at the bottom of the PID controller body;

[0007] The connection structure includes a T-shaped block and a connecting plate;

[0008] The top of the T-shaped block is inserted into the socket at the bottom of the PID controller body;

[0009] The top two ends of the T-shaped block are fixedly connected to the main body of the PID controller via fixing components.

[0010] The connecting plate is fixed to the bottom end of the T-shaped block;

[0011] The fixing component includes a movable block, a positioning block, and a telescopic rod;

[0012] The top of the movable block is movably positioned within the perforation A on the T-shaped block;

[0013] The positioning block is fixed to one side of the top of the movable block;

[0014] The positioning block is fitted with the through hole B opened at the top side of the movable block, and one end of the positioning block is fitted with the positioning hole opened on the side wall of the insertion hole.

[0015] The telescopic rod is positioned between the movable block and the T-shaped block;

[0016] A spring is provided between the movable block and the T-shaped block.

[0017] Preferably, the spring is in a compressed state.

[0018] Preferably, the movable block has a groove on its outer side, and the groove is arc-shaped.

[0019] Preferably, a silicone pad is fixed to the inner wall of the groove.

[0020] Preferably, the groove and the middle section of the silicone pad correspond to the telescopic rod.

[0021] Preferably, limiting components are provided on both sides of the T-shaped block;

[0022] The limiting assembly includes a screw and a nut;

[0023] The screw is fixed to the side end of the T-shaped block;

[0024] The nut is threaded onto the screw;

[0025] The nut is engaged with the movable block for limiting.

[0026] Compared with the prior art, the beneficial effects of this utility model are:

[0027] 1. This utility model, by setting up a socket, T-shaped block, connecting plate, movable block, positioning block, telescopic rod and spring, has the advantage that when the PID controller body is installed separately, a connecting structure can be added, and it can be directly installed at the thermal deaerator or on the frame. This solves the problem that the PID controller is inconvenient to fix when it needs to be installed separately.

[0028] 2. This utility model has the advantage that after the positioning block is inserted into the corresponding positioning hole, the moving nut will hold the movable block in place. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 2 This is a bottom view of the main body structure of the PID controller of this utility model;

[0031] Figure 3 This is a schematic diagram of the connection structure of this utility model;

[0032] Figure 4 This is a schematic diagram of the mounting structure of the fixing component of this utility model;

[0033] Figure 5 This is a schematic diagram of the installation structure of the limiting component of this utility model.

[0034] In the diagram: 100, PID controller body; 200, connection structure;

[0035] 101. Socket; 102. Positioning hole;

[0036] 201. T-block; 202. Connecting plate; 203. Fixing component; 204. Limiting component;

[0037] 2011, Piercing A; 2012, Piercing B;

[0038] 2031. Movable block; 2032. Positioning block; 2033. Telescopic rod; 2034. Spring; 2035. Groove; 2036. Silicone pad;

[0039] 2041, screw; 2042, nut. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Example 1, please refer to Figures 1 to 4 One embodiment of this utility model is a thermal deaerator control device, which includes a PID controller body 100 and a connection structure 200 at the bottom of the PID controller body 100.

[0042] The connection structure 200 includes a T-shaped block 201 and a connecting plate 202; the top of the T-shaped block 201 is inserted into the insertion hole 101 opened at the bottom of the PID controller body 100; wherein, the top two ends of the T-shaped block 201 are fixedly connected to the PID controller body 100 by fixing components 203 respectively; the connecting plate 202 is fixed to the bottom end of the T-shaped block 201; the mounting block is pre-fixed at the thermal deaerator or on the frame, and the connecting plate 202 is fixed to the pre-fixed mounting block by bolts.

[0043] The fixing component 203 includes a movable block 2031, a positioning block 2032, and a telescopic rod 2033; the top of the movable block 2031 is movably disposed within a through hole A2011 on the T-shaped block 201; the positioning block 2032 is fixedly disposed on one side of the top of the movable block 2031; wherein, the positioning block 2032 is fitted through a through hole B2012 opened at the top side of the movable block 2031, the top of the movable block 2031 is located within the through hole A2011, and one end of the positioning block 2032 is fitted with a fixed end of a hole 101 on the side wall of the insertion hole 101. The positioning hole 102 is inserted and fitted; the telescopic rod 2033 is set between the movable block 2031 and the T-shaped block 201; wherein, a spring 2034 is set between the movable block 2031 and the T-shaped block 201, and the two ends of the spring 2034 are fixedly connected to the movable block 2031 and the T-shaped block 201 respectively. The elastic coefficient of the spring 2034 shall be selected and used by the technical personnel of this profession according to the actual situation. The spring 2034 is in a compressed state, and the compressed spring 2034 provides thrust to the movable block 2031.

[0044] When the PID controller body 100 needs to be installed separately, the operator moves the two movable blocks 2031 relative to each other by hand. The telescopic rod 2033 shortens, and the spring 2034 is further compressed until the positioning block 2032 retracts into the through hole B2012. The top of the T-shaped block 201 is inserted into the corresponding insertion hole 101. Then the movable block 2031 is released. Under the action of the spring 2034, the two movable blocks 2031 move away from each other. The telescopic rod 2033 extends, and the positioning block 2032 is inserted into the corresponding positioning hole 102. The T-shaped block 201 is fixed to the PID controller body 100. The mounting block is pre-fixed at the thermal deaerator or on the frame. The connecting plate 202 is fixed to the pre-fixed mounting block by bolts, thereby fixing the PID controller body 100 separately.

[0045] This utility model, by setting up a socket 101, a T-shaped block 201, a connecting plate 202, a movable block 2031, a positioning block 2032, a telescopic rod 2033, and a spring 2034, has the advantage that when the PID controller body 100 is installed separately, a connecting structure 200 can be added, allowing it to be directly installed at the thermal deaerator or on the frame. This solves the problem that the PID controller is inconvenient to fix when it needs to be installed separately.

[0046] The movable block 2031 has a groove 2035 on its outer side, which is arc-shaped. A silicone pad 2036 is fixed to the inner wall of the groove 2035. When the operator presses their finger into the groove 2035 and contacts the silicone pad 2036, it is easier to apply force when pushing the movable block 2031. The middle section of the groove 2035 and the silicone pad 2036 corresponds to the telescopic rod 2033. When the operator pushes the movable block 2031, the force applied corresponds to the telescopic rod 2033, and the movable block 2031 moves stably.

[0047] Example 2, please refer to Figure 3and Figure 5 One embodiment of this utility model is a thermal deaerator control device, wherein limiting components 204 are respectively provided on both sides of the T-shaped block 201;

[0048] The limiting component 204 includes a screw 2041 and a nut 2042; the screw 2041 is fixed to the side end of the T-block 201; the nut 2042 is threaded onto the screw 2041; when the operator rotates the nut 2042, the nut 2042 moves relative to the screw 2041; wherein, the nut 2042 is in a limiting engagement with the movable block 2031.

[0049] After the positioning block 2032 is inserted into the positioning hole 102, the operator rotates the nut 2042, and the nut 2042 moves along the screw 2041 until the nut 2042 abuts against the movable block 2031.

[0050] This utility model, by setting a screw 2041 and a nut 2042, has the advantage that after the positioning block 2032 is inserted into the positioning hole 102, the moving nut 2042 will hold the movable block 2031 in place.

[0051] Working principle: When a mounting block is pre-fixed on the thermal deaerator or frame, and the PID controller body 100 needs to be installed separately, the operator manually moves the two movable blocks 2031 relative to each other. The telescopic rod 2033 shortens, and the spring 2034 is further compressed until the positioning block 2032 retracts into the through hole B2012. The top of the T-shaped block 201 is then inserted into the corresponding insertion hole 101. The movable blocks 2031 are then released, and under the action of the spring 2034, the two movable blocks 2031 move away from each other. The telescopic rod 2033 extends, and the positioning block 2032 is inserted into the corresponding positioning hole 102, fixing the T-shaped block 201 to the PID controller body 100. The operator then rotates the nut 2042, which moves along the screw 2041 until it abuts against the movable block 2031. The connecting plate 202 is then fixed to the pre-fixed mounting block with bolts, thus separately fixing the PID controller body 100.

[0052] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A control device for a thermal deaerator, characterized in that: It includes a PID controller body (100), and a connection structure (200) is provided at the bottom of the PID controller body (100); The connection structure (200) includes: The top of the T-shaped block (201) is inserted into the socket (101) at the bottom of the PID controller body (100); The top two ends of the T-shaped block (201) are fixedly connected to the main body (100) of the PID controller via fixing components (203); A connecting plate (202) is fixed to the bottom end of the T-shaped block (201); The fixing component (203) includes: The movable block (2031) is movably disposed at the top within the perforation A (2011) on the T-shaped block (201); A positioning block (2032) is fixed to one side of the top of the movable block (2031); The positioning block (2032) is fitted through the through hole B (2012) at the top side of the movable block (2031), and one end of the positioning block (2032) is fitted into the positioning hole (102) on the side wall of the insertion hole (101). A telescopic rod (2033) is disposed between the movable block (2031) and the T-shaped block (201); A spring (2034) is provided between the movable block (2031) and the T-shaped block (201).

2. The thermal deaerator control device according to claim 1, characterized in that: The spring (2034) is in a compressed state.

3. The thermal deaerator control device according to claim 1, characterized in that: The movable block (2031) has a groove (2035) on its outer side, and the groove (2035) is arc-shaped.

4. The thermal deaerator control device according to claim 3, characterized in that: A silicone pad (2036) is fixedly provided on the inner wall of the groove (2035).

5. The thermal deaerator control device according to claim 4, characterized in that: The groove (2035) and the middle section of the silicone pad (2036) correspond to the telescopic rod (2033).

6. The thermal deaerator control device according to claim 1, characterized in that: Limiting components (204) are provided on both sides of the T-shaped block (201); The limiting component (204) includes: A screw (2041) is fixed to the side end of the T-shaped block (201); Nut (2042) is threaded onto the screw (2041); The nut (2042) is in a limiting fit with the movable block (2031).

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