Sliding type automatic temperature control steam valve

Abstract

The utility model relates to the technical field of automatic temperature control steam valves, in particular to a sliding type automatic temperature control steam valve, which is characterized in that a flow guide cavity is arranged in a flow guide pipe, and the flow guide cavity is communicated with the left side and the right side of a steam cavity. Part of steam in the steam cavity can flow into the flow guide cavity to be cooled through the cooler, the cooled steam flows back to the steam cavity, steam loss can be avoided while part of steam in the steam cavity is cooled, waste is reduced, cost is reduced, and meanwhile the temperature change in the steam cavity is sensed through the memory metal, so that the cooling effect is improved. Meanwhile, the extension length of the memory metal can be automatically controlled according to the temperature in the steam cavity, then the opening size of the flow guide cavity is automatically controlled, and therefore the flow of the cooling steam is controlled; and the temperature of the steam in the steam cavity is prevented from being suddenly reduced.

Description

Technical Field

[0001] This utility model relates to the field of automatic temperature-controlled steam valve technology, specifically a sliding automatic temperature-controlled steam valve. Background Technology

[0002] A steam valve is a type of valve used on pipelines carrying steam. Steam circulates in a closed environment. If there is no cooling or pressure relief device to regulate the temperature inside the pipeline, the steam temperature inside the pipeline will become too high, which can lead to danger and reduce the service life of the machinery.

[0003] Existing steam valve pressure relief cooling devices mostly control the temperature inside the pipe by discharging part of the steam. Although this can reduce the temperature and pressure of the steam inside the valve, it reduces the total amount of steam inside the valve, which in turn requires the regular addition of steam medium, greatly increasing the cost. Utility Model Content

[0004] The purpose of this invention is to provide a sliding automatic temperature-controlled steam valve to overcome the above-mentioned defects in the prior art.

[0005] According to the present invention, a sliding automatic temperature control steam valve includes a steam pipe, a steam chamber extending through the steam pipe from left to right, and a guide pipe fixed to the upper end face of the steam pipe.

[0006] A cooler is fixed on the guide pipe, and a guide cavity is provided inside the guide pipe. The guide cavity is connected to the left and right sides of the steam chamber.

[0007] As a preferred embodiment of this utility model, a sliding cavity is provided in the upper wall of the steam cavity, a left sliding groove is provided in the left wall of the sliding cavity and the flow guide cavity, and a right sliding groove is provided in the right wall of the sliding cavity and the flow guide cavity.

[0008] As a preferred embodiment of this utility model, a movable sliding block is provided inside the sliding cavity, and a left sliding baffle is fixed on the left side of the sliding block, extending to the left into the left sliding groove.

[0009] As a preferred embodiment of this utility model, a right sliding baffle is fixed on the right side of the sliding block, and the right sliding baffle extends to the right into the right sliding groove.

[0010] As a preferred embodiment of this utility model, the right sliding baffle is provided with a through-flow reflux opening on the right side, and a fixing spring is directly provided on the right wall of the right sliding baffle and the right wall of the right sliding groove.

[0011] As a preferred embodiment of this invention, a shape memory metal capable of changing shape with temperature is provided between the left side of the sliding block and the left side of the sliding cavity.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] This invention features a guide cavity inside the guide tube, which is connected to the left and right sides of the steam chamber. When the steam temperature in the steam chamber is too high, some of the steam in the steam chamber can flow into the guide cavity to be cooled by the cooler, and the cooled steam can be returned to the steam chamber. This can achieve the cooling of some of the steam in the steam chamber while avoiding the loss of steam, reducing waste and lowering costs.

[0014] This invention features a shape-memory metal that changes shape with temperature between the left side of the sliding block and the left side of the sliding cavity. The shape-memory metal senses temperature changes within the steam cavity and controls the opening and closing of the guide cavity, allowing steam to flow through the guide cavity for cooling. Simultaneously, the extension length of the shape-memory metal is automatically controlled by the temperature within the steam cavity, thereby automatically controlling the opening size of the guide cavity and controlling the flow rate of cooling steam, thus preventing a sudden drop in steam temperature within the steam cavity. Attached Figure Description

[0015] Figure 1 This is a schematic front view of the appearance of this utility model;

[0016] Figure 2 This is a schematic front view of the appearance of this utility model;

[0017] Figure 3 This is a top view illustrating the appearance of this utility model;

[0018] Figure 4 This is a schematic side view of the appearance of this utility model;

[0019] Figure 5 This is the utility model Figure 4 A diagram of AA in the middle;

[0020] Figure 6 For the present utility model Figure 5 A schematic diagram of BB;

[0021] Figure 7 For the present utility model Figure 6 A schematic diagram of CC in the diagram.

[0022] In the picture:

[0023] 101. Steam pipe; 102. Cooler; 103. Guide pipe; 104. Steam chamber; 105. Guide chamber; 106. Sliding chamber; 107. Right sliding baffle; 108. Left sliding groove; 109. Left sliding baffle; 200. Shape memory metal; 201. Sliding block; 202. Return opening; 203. Right sliding groove; 204. Fixed spring. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Example 1

[0026] Reference Figures 1-7 This is the first embodiment of the present utility model. This embodiment provides an example of a sliding automatic temperature control steam valve, including a steam pipe 101, a steam chamber 104 that runs through the left and right sides inside the steam pipe 101, and a guide pipe 103 fixed on the upper end face of the steam pipe 101.

[0027] A cooler 102 is fixed on the guide pipe 103. A guide cavity 105 is provided inside the guide pipe 103. The guide cavity 105 is connected to the left and right sides of the steam cavity 104.

[0028] Steam can flow rapidly through the steam chamber 104. When the steam temperature in the steam chamber 104 is too high, some of the steam in the steam chamber 104 can flow into the guide chamber 105 to be cooled by the cooler 102, and the cooled steam can be returned to the steam chamber 104. This can cool some of the steam in the steam chamber 104 while avoiding steam loss, reducing waste and lowering costs.

[0029] Example 2

[0030] Reference Figure 1-7 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. Specifically, a sliding cavity 106 is provided in the upper wall of the steam cavity 104. A left sliding groove 108 is provided in the left wall of the sliding cavity 106, which is connected to the flow guiding cavity 105. A right sliding groove 203 is provided in the right wall of the sliding cavity 106, which is connected to the flow guiding cavity 105. A movable sliding block 201 is provided in the sliding cavity 106. A left sliding baffle 109 is fixed on the left side of the sliding block 201. The left sliding baffle 109 extends to the left into the left sliding groove 108. A right sliding baffle 107 is fixed on the right side of the sliding block 201. The right sliding baffle 107 extends to the right into the right sliding groove 203. A return opening 202 that runs vertically through the right side of the right sliding baffle 107 is provided directly between the right wall of the right sliding baffle 107 and the right wall of the right sliding groove 203. A shape memory metal 200 that can change shape with temperature is provided between the left side of the sliding block 201 and the left side of the sliding cavity 106.

[0031] When the steam temperature in the steam chamber 104 is normal, the right sliding baffle 107 moves to the left via the fixed spring 204, simultaneously driving the sliding block 201 to move to the left, which in turn drives the left sliding baffle 109 to move to the left, thereby closing the guide cavity 105 and preventing the steam heat in the steam chamber 104 from being lost. When the steam temperature in the steam chamber 104 is too high, the shape memory metal 200 extends to the right, thereby pushing the sliding block 201 to move to the right, which in turn drives the left sliding baffle 109 to move to the right, which in turn drives the right sliding baffle 107 to move to the right, thereby connecting the return opening 202 with the right guide cavity 105, thus connecting the left and right sides of the guide cavity 105, allowing the steam in the steam chamber 104 to flow through the guide cavity 105 for cooling. At the same time, the extension length of the shape memory metal 200 can be automatically controlled by the temperature in the steam chamber 104, thereby automatically controlling the opening size of the guide cavity 105, thereby controlling the flow rate of cooling steam and preventing a sudden drop in the steam temperature in the steam chamber 104.

[0032] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A sliding type automatic temperature control steam valve comprising a steam pipe (101), characterized in that, The steam pipe (101) is provided with steam cavities (104) penetrating left and right, and a flow guide pipe (103) is fixed to the upper end face of the steam pipe (101); The flow guide pipe (103) is provided with a cooler (102), and the flow guide pipe (103) is provided with a flow guide cavity (105), and the flow guide cavity (105) is communicated with the left and right sides of the steam cavity (104).

2. A sliding automatic temperature control steam valve according to claim 1, characterized in that: The upper wall of the steam cavity (104) is provided with a sliding cavity (106), the left wall of the sliding cavity (106) is provided with a left sliding groove (108) communicated with the flow guide cavity (105), and the right wall of the sliding cavity (106) is provided with a right sliding groove (203) communicated with the flow guide cavity (105).

3. A sliding automatic temperature control steam valve according to claim 2, wherein: The sliding cavity (106) is provided with a movable sliding block (201), the left side of the sliding block (201) is fixed with a left sliding baffle (109), and the left sliding baffle (109) extends leftward into the left sliding groove (108).

4. A sliding automatic temperature control steam valve according to claim 3, wherein: The right side of the sliding block (201) is fixed with a right sliding baffle (107), and the right sliding baffle (107) extends rightward into the right sliding groove (203).

5. A sliding automatic temperature controlled steam valve according to claim 4, wherein: The right side of the right sliding baffle (107) is provided with a reflux opening (202) penetrating up and down, and the right wall of the right sliding baffle (107) is directly provided with a fixed spring (204) with the right wall of the right sliding groove (203).

6. A sliding automatic temperature control steam valve according to claim 3, wherein: The left side of the sliding block (201) and the left side of the sliding cavity (106) are provided with a memory metal (200) capable of changing shape with the change of temperature.

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