Novel constant temperature control steam trap

Abstract

The utility model discloses a novel constant temperature control steam trap, and relates to the technical field of steam traps, a pipe orifice of an inlet valve is communicated and connected with an inlet pipeline installed on a valve body, the other end of the pipeline of the inlet pipeline is screwed with a knob nut, one side of the knob nut is provided with a filter screen cylinder extending into the inlet pipeline, and the other side of the knob nut is provided with a water inlet. A water filtering inner cylinder is lined in the middle of a cylinder pipe of the filter screen cylinder and is of a conical structure. According to the designed steam trap, the combination of the filter screen cylinder and the water filtering inner cylinder is arranged on the pipeline of the inlet pipe of the valve body, condensate water flowing in from a pipe opening is filtered by utilizing the filtering performance of the long cylinder pipe, and filtered impurities are scoured to the other side of the water filtering inner cylinder to be gathered and collected under the circular impact of the condensate water, so that the impurities are prevented from being gathered for a long time, and the service life of the steam trap is prolonged. And the condensate water is scattered under the impact of circulation of the condensate water to block a circulation pipeline, so that the safe use performance of the steam trap is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of steam traps, in particular to a novel thermostatically controlled steam trap. Background Art

[0002] The steam trap is called a trap, which is divided into steam system and gas system. Its function is to continuously discharge the condensed water in the steam-heated pipe to the outside of the pipe. It is widely used in petrochemical, food and pharmaceutical, power plant and other industries, and plays a great role in energy conservation and emission reduction. As shown in a steam trap disclosed by the China Patent Network (public announcement number CN212745955U), during the use of this type of steam trap, before the condensed water enters the internal cavity of the valve body, it is first filtered by a filter. The filter uses an ultrasonic transducer to make the filter plate generate high-frequency mechanical vibration, thereby preventing the debris in the condensed water from adhering to the filter plate and clogging the filter plate, thereby playing a role in timely dredging the filter plate.

[0003] However, there are still some shortcomings in the above-mentioned public patents and the steam traps adopted in the existing market: the existing method of installing a filter at the valve port of the steam trap and using its internal filter disc to filter impurities in the water and separate them by high-frequency vibration. The impurities under the filtering vibration are gathered on one side of the filter disc. Every time the condensate flows, the impurities will rush to the filter disc. After long-term accumulation, it is very easy to cause a large amount of impurities to rush to the filter disc in the filter instantly, causing blockage and closure, which is not conducive to the circulation of condensate water. To this end, technicians in this field provide a new type of thermostatically controlled steam trap to solve the problems raised in the above background technology. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a novel thermostatically controlled steam trap, which solves the problem of relatively low filtering and impurity removal performance of the prior steam trap proposed in the above background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: A novel thermostatically controlled steam trap comprises an integrally connected valve body and a valve seat;

[0006] An inlet valve is installed on one side of the valve body of the valve body, and an outlet valve is installed on the other side of the valve body of the valve body;

[0007] The pipe orifice of the inlet valve is connected to the inlet pipeline installed on the valve body, and the other end of the pipe of the inlet pipeline is screwed with a knob nut, and one side of the knob nut is provided with a filter cylinder extending to the inside of the inlet pipeline;

[0008] The bottom of the valve body of the valve body is provided with a flow guide pipeline which is conductively connected to the inlet pipeline, and the pipe mouth of the outlet valve is conductively connected to the outlet pipeline installed on the valve seat;

[0009] A float assembly is arranged inside the valve cavity of the valve body and is opposite to the guide pipeline and the outlet pipeline.

[0010] As a further technical solution of the utility model: the length of the tube of the filter screen cartridge exceeds the matching port of the diversion pipeline and the inlet pipeline, and the middle part of the tube of the filter screen cartridge is lined with a water filter inner cylinder, and the water filter inner cylinder is a conical structure.

[0011] As a further technical solution of the utility model: one end of the pipe opening of the inlet pipeline is provided with a threaded opening adapted to the knob nut, and the knob nut is a hexagon socket bolt structure.

[0012] As a further technical solution of the utility model: the float assembly includes a buffer folding plate built into the valve cavity of the valve body, the bottom of the buffer folding plate is hung with a hanging rod, and the bottom of the hanging rod is installed with a float opposite to the inlet pipeline, the top of the buffer folding plate is installed with a plug opposite to the outlet pipeline, and a thermistor is arranged inside the buffer folding plate.

[0013] As a further technical solution of the utility model: the buffer folding plate is a V-shaped structure, and the buffer folding plate is made of elastic steel material.

[0014] As a further technical solution of the utility model: the inlet valve and the outlet valve are arranged horizontally relative to each other, and the valve ports of the inlet valve and the outlet valve are both provided with internal threads.

[0015] The utility model provides a novel thermostatically controlled steam trap, which has the following beneficial effects compared with the prior art:

[0016] 1. The steam trap of this design, by arranging a combination of a filter screen cylinder and a water filter inner cylinder on the pipeline of the valve body inlet pipe, utilizes the filtering performance of the long tube to filter the condensed water flowing in from the pipe mouth, and under the circulation impact of the condensed water, the filtered impurities are flushed to the other side of the water filter inner cylinder for collection, so as to avoid the impurities from gathering for a long time and scattering under the circulation impact of the condensed water, resulting in the blockage of the circulation pipeline, thereby ensuring the safe use performance of the steam trap.

[0017] 2. The steam trap of this design utilizes the combination of the buffer folding plate and the thermistor in its float assembly. When cold air flows in the pipeline, the thermal expansion and contraction characteristics of the thermistor are utilized to drive the buffer folding plate to fold in half, and the float and the plug are removed from the inlet and outlet pipelines to keep the cold air flowing and discharging. When heat flows in the pipeline, the thermal expansion and contraction characteristics of the thermistor are utilized to drive the buffer folding plate to expand and open, and the float and the plug are pressed onto the inlet and outlet pipelines to form a closed state, thus cutting off the loss of heat. It has stable and good double-acting opening and closing characteristics, which can ensure the hydrophobic characteristics of the steam trap. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a new type of thermostatically controlled steam trap;

[0019] Figure 2 It is a partial cross-sectional view of a new type of thermostatically controlled steam trap;

[0020] Figure 3 It is a schematic diagram of the structure of the filter screen cartridge in the new thermostatically controlled steam trap;

[0021] Figure 4 It is a schematic diagram of the structure of the float assembly in the new thermostatically controlled steam trap.

[0022] In the figure: 1. valve body; 2. valve seat; 3. inlet valve; 4. inlet pipeline; 41. threaded port; 5. outlet pipeline; 6. outlet valve; 7. diversion pipeline; 8. filter screen cylinder; 81. water filter inner cylinder; 9. knob nut; 10. float assembly; 101. buffer folding plate; 102. hanging rod; 103. float; 104. thermistor; 105. plug. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides a new type of thermostatically controlled steam trap technical solution: the new type of thermostatically controlled steam trap comprises a valve body 1 and a valve seat 2 which are connected in one piece, an inlet valve 3 is installed on one side of the valve body of the valve body 1, and an outlet valve 6 is installed on the other side of the valve body of the valve body 1, the inlet valve 3 and the outlet valve 6 are arranged horizontally opposite to each other, and the valve ports of the inlet valve 3 and the outlet valve 6 are both provided with internal threads, and by arranging the inlet valve 3 and the outlet valve 6 in an integrated horizontal state, the installation and use of the steam trap and the pipeline can be facilitated, and the installation strength thereof can be reduced.

[0025] The pipe orifice of the inlet valve 3 is connected to the inlet pipeline 4 installed on the valve body 1, and the other end of the pipe of the inlet pipeline 4 is screwed with a knob nut 9, and one side of the knob nut 9 is provided with a filter cylinder 8 extending to the inside of the inlet pipeline 4, the cylinder length of the filter cylinder 8 exceeds the matching port of the guide pipeline 7 and the inlet pipeline 4, and the middle part of the cylinder of the filter cylinder 8 is lined with a water filter inner cylinder 81, and the water filter inner cylinder 81 is a conical structure. By extending the cylinder length of the filter cylinder 8 to the matching port of the guide pipeline 7 and the inlet pipeline 4, when the condensed water flows through the inlet valve 3 and the inlet pipeline 4, the filter is used to filter the condensed water. The mesh cylinder 8 filters impurities in the condensed water, and the condensed water can flow into the valve body 1 through the guide pipe 7 after being filtered, so as to avoid impurities being carried around and clogging the steam trap pipe. While the condensed water circulates, the impact force of the water flow drives the filtered impurities in the filter mesh cylinder 8 to impact, and the impurities are rushed to the water filter inner cylinder 81, and gathered on the other side of the cylinder tube of the filter mesh cylinder 8 through the water filter inner cylinder 81. Then, the conical structure of the water filter inner cylinder 81 is used to keep the impurities in a single-port entry state, so as to avoid the impurities from flowing repeatedly under the action of the water flow, thereby ensuring the efficient and long-lasting filtering performance of the filter mesh cylinder 8.

[0026] A threaded opening 41 that matches the knob nut 9 is provided at one end of the pipe mouth of the inlet pipe 4, and the knob nut 9 is a hexagon socket bolt structure. By utilizing the screwed combination of the knob nut 9 and the threaded opening 41, when it is necessary to clean the impurities filtered in the filter screen cartridge 8 later, the filter screen cartridge 8 is unscrewed from the inlet pipe 4, and the knob nut 9 and the filter screen cartridge 8 can be set to a screwed connection state in advance, and then the filter screen cartridge 8 is unscrewed from the knob nut 9 to clean the impurities filtered and collected inside it.

[0027] The bottom of the valve body of the valve body 1 is provided with a guide pipeline 7 which is connected to the inlet pipeline 4, the outlet valve 6 is connected to the outlet pipeline 5 installed on the valve seat 2, and the valve cavity of the valve body 1 is provided with a float assembly 10 which is opposite to the guide pipeline 7 and the outlet pipeline 5. The float assembly 10 includes a buffer folding plate 101 built into the valve cavity of the valve body 1, a hanging rod 102 is hung at the bottom of the buffer folding plate 101, and a float 103 which is opposite to the inlet pipeline 4 is installed at the bottom of the hanging rod 102, a plug 105 which is opposite to the outlet pipeline 5 is installed at the top of the buffer folding plate 101, and a thermistor 104 is arranged inside the buffer folding plate 101, and the buffer folding plate 101 is provided with a thermistor 104. 101 is a V-shaped structure, and the buffer folding plate 101 is made of elastic steel material. When cold air flows in the valve cavity of the valve body 1, the thermal expansion and contraction characteristics of the thermistor 104 are utilized, and it shrinks due to the cold, driving the buffer folding plate 101 to fold in half, and the float 103 and the plug 105 are removed from the guide pipe 7 and the outlet pipe 5, so that the cold air keeps flowing and discharging. When heat flows in the valve cavity of the valve body 1, the thermal expansion and contraction characteristics of the thermistor 104 are utilized, and it expands due to the heat, driving the buffer folding plate 101 to expand and open, and the float 103 and the plug 105 are pressed onto the guide pipe 7 and the outlet pipe 5 to form a closed state, cut off the loss of heat, and ensure the hydrophobic characteristics of the steam trap.

[0028] The working principle of the utility model is: when the steam trap is used as a steam blocking and drainage component of the steam / gas system, the steam trap is installed at the terminal of the steam-heated pipeline by using the combination of the inlet valve 3 and the outlet valve 6;

[0029] In the subsequent use process, the medium flows into the valve cavity of the valve body 1 through the inlet valve 3, the inlet pipeline 4, and the guide pipeline 7, and then is discharged through the combination of the outlet pipeline 5 and the outlet valve 6. Then, when the cold flows in the valve cavity of the valve body 1, the thermal expansion and contraction characteristics of the thermistor 104 are utilized, and it shrinks when it is cold, driving the buffer folding plate 101 to fold in half, and the float 103 and the plug 105 are removed from the guide pipeline 7 and the outlet pipeline 5, so that the cold keeps flowing and draining, and the condensed water or cold air is discharged. Subsequently, when the heat flows in the valve cavity of the valve body 1, the thermal expansion and contraction characteristics of the thermistor 104 are utilized, and it expands when it is heated, driving the buffer folding plate 101 to expand and open, and the float 103 and the plug 105 are pressed on the guide pipeline 7 and the outlet pipeline 5 to form a closed state, cut off the loss of heat, and achieve the purpose of water drainage;

[0030] Furthermore, when performing the drainage work, when the condensed water flows through the inlet valve 3 and the inlet pipeline 4, the filter screen 8 is used to filter the impurities in the condensed water, and the condensed water can be circulated into the valve body 1 through the guide pipeline 7 after being filtered, so as to avoid the impurities being carried around and clogging the trap pipeline. While the condensed water circulates, the impact force of the water flow drives the filtered impurities in the filter screen 8 to impact, and the impurities are rushed to the water filter inner cylinder 81, and gathered on the other side of the cylinder tube of the filter screen 8 through the water filter inner cylinder 81. Then, the conical structure of the water filter inner cylinder 81 is used to keep the impurities in a single-port entry state, so as to avoid the impurities from flowing repeatedly under the action of the water flow, thereby ensuring the efficient and long-lasting filtering performance of the filter screen 8. Subsequently, the knob nut 9 can be removed from the threaded port 41, the filter screen 8 can be taken out, and the impurities inside it can be cleaned regularly.

[0031] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A new type of thermostatically controlled steam trap, characterized in that: It comprises a valve body (1) and a valve seat (2) which are integrally connected; An inlet valve (3) is installed on one side of the valve body of the valve body (1), and an outlet valve (6) is installed on the other side of the valve body of the valve body (1); The pipe opening of the inlet valve (3) is connected to an inlet pipeline (4) mounted on the valve body (1), and the other end of the pipeline of the inlet pipeline (4) is screwed with a knob nut (9), and a filter screen cylinder (8) extending into the interior of the inlet pipeline (4) is provided on one side of the knob nut (9); The bottom of the valve body (1) is provided with a flow guide pipeline (7) which is conductively connected to the inlet pipeline (4); the outlet of the outlet valve (6) is conductively connected to the outlet pipeline (5) installed on the valve seat (2); A float assembly (10) is arranged inside the valve cavity of the valve body (1) and is opposite to the pipe openings of the flow guide pipeline (7) and the outlet pipeline (5).

2. The novel thermostatically controlled steam trap according to claim 1 is characterized in that: The tube length of the filter screen cylinder (8) exceeds the mating port of the flow guide pipeline (7) and the inlet pipeline (4), and the middle of the tube of the filter screen cylinder (8) is lined with a water filter inner cylinder (81), and the water filter inner cylinder (81) is a conical structure.

3. The novel thermostatically controlled steam trap according to claim 1 is characterized in that: A threaded opening (41) adapted to the knob nut (9) is provided at one end of the pipe opening of the inlet pipe (4), and the knob nut (9) is a hexagon socket bolt structure.

4. The novel thermostatically controlled steam trap according to claim 1 is characterized in that: The float assembly (10) comprises a buffer folding plate (101) built into the valve cavity of the valve body (1); a hanging rod (102) is hung at the bottom of the buffer folding plate (101); a float (103) opposite to the inlet pipeline (4) is installed at the bottom of the hanging rod (102); a plug (105) opposite to the outlet pipeline (5) is installed at the top of the buffer folding plate (101); and a thermal element (104) is arranged inside the buffer folding plate (101).

5. The novel thermostatically controlled steam trap according to claim 4 is characterized in that: The buffer folding plate (101) is of a V-shaped structure, and the buffer folding plate (101) is made of elastic steel material.

6. The novel thermostatically controlled steam trap according to claim 1, characterized in that: The inlet valve (3) and the outlet valve (6) are arranged horizontally opposite to each other, and the valve ports of the inlet valve (3) and the outlet valve (6) are both provided with internal threads.

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