Floating ball pilot-operated type steam trap

Abstract

The utility model relates to the technical field of valves, and discloses a floating ball pilot type steam trap which comprises a valve body, a valve cover is installed at the upper end of the valve body, a valve seat is installed at the lower end of the right side surface of the valve body, a floating ball is installed in the valve body, a filter screen is installed in the valve body and located above the floating ball, and a supporting ring is installed outside the filter screen. Elastic sleeves are connected to the left side and the right side in the supporting ring in a penetrating mode, first connecting bases are installed on the left side and the right side of the lower surface of the supporting ring, and connecting mechanisms are arranged below the first connecting bases. The first connecting seat and the second connecting seat can be mounted together by clamping the first clamping block through the second clamping block, so that the filter screen is mounted in the valve body, the filter screen can be dismounted by pushing the second clamping block by poking the poking rod, and the filter screen is very convenient to dismount and mount; and the structure is not easily influenced by factors such as water or steam impact, external vibration and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a floating ball pilot steam trap. Background Art

[0002] In the steam heating system, a large amount of condensed water will be generated during the transmission and use of steam. If it is not discharged in time, the condensed water will occupy the steam space, reduce the heating efficiency, and even cause equipment damage. Therefore, a float pilot steam trap is used; when the existing steam trap is in use, the internal filter screen will need to be corroded and damaged after long-term use. After the filter screen is damaged, it will affect the sealing of the steam trap. Then the user needs to replace the filter screen to ensure the precision of the steam trap.

[0003] A Chinese patent discloses a free float steam trap (authorization announcement number CN210004132U). This patent technology uses a knob to set up. When the user needs to replace the filter, the user can rotate the knob to drive the first bevel gear to rotate through the rotating rod. Since the first bevel gear and the second bevel gear are meshed with each other, the threaded rod can be driven to rotate, and the threaded rod can be driven to slide. When the slide rod slides out of the slide groove, the filter can be removed for use. Otherwise, the filter can be quickly installed for use, which is convenient for users to use and better than the traditional method.

[0004] However, it has certain disadvantages: the installation and disassembly of the entire filter is achieved by rotating the rotating rod, and the rotating rod is easily disturbed by external factors, such as water impact, steam impact, valve body vibration, etc. Under these interferences, the rotating rod is prone to unnecessary rotation, thereby failing to ensure the stability of the filter after installation. Utility Model Content

[0005] The utility model aims to provide a float pilot steam trap to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A float pilot steam trap comprises a valve body, a valve cover is installed on the upper end of the valve body, a valve seat is installed on the lower end of the right side surface of the valve body, a float is installed inside the valve body, and a filter is installed inside the valve body above the float, a support ring is installed outside the filter, elastic sleeves are connected through the left and right sides of the support ring, a lever is connected through the elastic sleeve, first connecting seats are installed on the left and right sides of the lower surface of the support ring, a first clamping block is installed on the lower end of the first connecting seat on the side surface close to the filter, and a connecting mechanism is arranged below the first connecting seat.

[0008] As a further solution of the utility model: the connecting mechanism includes a second connecting seat, a connecting block is installed on the upper end of the second connecting seat, and a baffle is installed on the lower end of the second connecting seat, a pressure plate is installed on the side surface of the second connecting seat close to the filter screen, a connecting plate is installed on one side surface of the pressure plate, and a second clamping block is installed on the upper end of the connecting plate away from the filter screen.

[0009] As a further solution of the utility model: two support sleeves are symmetrically installed on the upper surface of the filter screen, and the support sleeves are movably connected with support rods inside.

[0010] As a further solution of the utility model: the outer surface of the support ring fits the inner left and right surfaces of the valve body.

[0011] As a further solution of the utility model: the side surface of the second connecting seat away from the filter screen is installed on the inner side surface of the valve body, the connecting block is movably located inside the first connecting seat, and the baffle is located outside the pressure plate.

[0012] As a further solution of the utility model: the upper end of the support rod is installed on the lower surface of the valve cover.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model can install the first connecting seat and the second connecting seat together by clamping the first clamping block with the second clamping block, so that the filter net is installed inside the valve body, and the filter net can be removed by moving the lever to push the second clamping block so that the second clamping block is away from the first clamping block, so that the filter net can be easily disassembled and assembled, and the structure is not easily affected by factors such as water or steam impact and external vibration, and has high stability after installation.

[0015] 2. The utility model restricts the installed filter screen through the support rod and the support sleeve to prevent the filter screen from rotating in the horizontal direction, thereby ensuring the installation stability of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a float pilot steam trap;

[0017] Figure 2 It is a cross-sectional view of a float pilot steam trap;

[0018] Figure 3 It is a partial schematic diagram of a float pilot steam trap;

[0019] Figure 4 for Figure 3 A magnified view of middle;

[0020] Figure 5 The figure is a schematic diagram of the structure of the connection mechanism in a float pilot steam trap.

[0021] In the figure: 1. valve body; 2. valve cover; 3. valve seat; 4. float; 5. filter screen; 6. support ring; 7. elastic sleeve; 8. lever; 9. first connecting seat; 10. first clamping block; 11. connecting mechanism; 12. second connecting seat; 13. connecting block; 14. baffle; 15. pressure plate; 16. connecting plate; 17. second clamping block; 18. support sleeve; 19. support rod. DETAILED DESCRIPTION

[0022] See also Figures 1 to 3 In the embodiment of the utility model, a float pilot steam trap includes a valve body 1, a valve cover 2 is installed at the upper end of the valve body 1, a valve seat 3 is installed at the lower end of the right side surface of the valve body 1, a float 4 is installed inside the valve body 1, and a filter screen 5 is installed above the float 4 inside the valve body 1, a support ring 6 is installed outside the filter screen 5, and the outer surface of the support ring 6 is in contact with the left and right side surfaces of the inner part of the valve body 1;

[0023] A drain valve is installed at the front end of the lower surface of the valve body 1; the valve cover 2 is detachably mounted on the valve body 1 by bolts or the like;

[0024] The float 4 is a hollow spherical structure;

[0025] When the steam heating equipment generates condensed water, the condensed water will flow into the valve body 1. At this time, the float 4 will rise as the water level of the condensed water rises. The rise of the float 4 will trigger the valve opening mechanism. Specifically, the float 4 is connected to the valve opening mechanism (usually a connecting rod or lever system). When the float 4 rises, the mechanism will be activated, causing the valve to open. When the valve is opened, the condensed water can flow out through the valve seat 3 and be discharged to the return manifold or other discharge system; at the same time, steam will also flow through the valve body 1, but because its density is lower than that of the condensed water, it will occupy the space above the valve body 1;

[0026] The setting of the filter screen 5 helps to prevent solid particles or other impurities from entering the valve body, ensuring the normal operation of the steam trap; as the condensate is continuously discharged, the water level of the float 4 will gradually drop. When the water level drops to a certain level, the float will drop accordingly, and then the valve will be gradually closed through the valve opening mechanism.

[0027] exist Figures 2 to 5In the figure: the left and right sides of the inner part of the support ring 6 are penetrated and connected with an elastic sleeve 7, the inner part of the elastic sleeve 7 is penetrated and connected with a lever 8, the left and right sides of the lower surface of the support ring 6 are installed with a first connecting seat 9, the lower end of the first connecting seat 9 is installed with a first clamping block 10 on the side surface close to the filter screen 5, and a connecting mechanism 11 is arranged below the first connecting seat 9, the connecting mechanism 11 includes a second connecting seat 12, the side surface of the second connecting seat 12 away from the filter screen 5 is installed on the inner side surface of the valve body 1, the upper end of the second connecting seat 12 is installed with a connecting block 13, the connecting block 13 is movably located inside the first connecting seat 9, the lower end of the second connecting seat 12 is installed with a baffle 14, the side surface of the second connecting seat 12 close to the filter screen 5 is installed with a pressure plate 15, the baffle 14 is located outside the pressure plate 15, the side surface of the pressure plate 15 is installed with a connecting plate 16, and the upper end of the connecting plate 16 is installed with a second clamping block 17 on the side surface away from the filter screen 5;

[0028] The first block 10 and the second block 17 are both angular blocks. The surface of the first block 10 close to the filter screen 5 is an inclined surface, and the surface of the second block 17 away from the filter screen 5 is an inclined surface.

[0029] The pressure plate 15 is preferably made of stainless steel, which will deform when stressed and will recover after being released;

[0030] When the second clamping block 17 is clamped on the top of the first clamping block 10, the first connecting seat 9 and the second connecting seat 12 are fixed together, thereby fixing the filter screen inside the valve body 1;

[0031] The lever 8 is moved to push the second block 17 away from the first block 10, and the filter screen 5 is then moved upward to be removed.

[0032] The baffle plate 14 prevents the float 4 from touching the pressure plate 15 when rising.

[0033] exist Figures 2 to 4 Middle: Two support sleeves 18 are symmetrically mounted on the upper surface of the filter screen 5, and a support rod 19 is movably connected inside the support sleeve 18, and the upper end of the support rod 19 is mounted on the lower surface of the valve cover 2;

[0034] The two support rods 19 prevent the installed filter screen 5 from rotating in the horizontal direction, thereby ensuring that the first clamping block 10 always clamps the second clamping block 17 .

[0035] The working principle of the utility model is: when the staff needs to replace the filter 5, they can first remove the valve cover 2, and then move the lever 8 to push the second block 17 to move the second block 17 away from the first block 10, then pull the filter 5 upward to take it out, and put the cleaned or new filter 5 downward into the interior of the valve body 1. During the lowering process, the first block 10 contacts the second block 17 and pushes the second block 17 until the first block 10 moves to the bottom of the second block 17. At this time, the first connecting seat 9 and the second connecting seat 12 are connected together, so that the filter 5 is installed. Finally, the valve cover 2 is covered so that the support rod 19 on the valve cover 2 is inserted into the support sleeve 18.

[0036] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A float pilot steam trap, comprising a valve body (1), a valve cover (2) being mounted on the upper end of the valve body (1), a valve seat (3) being mounted on the lower end of the right side surface of the valve body (1), a float (4) being mounted inside the valve body (1), a filter screen (5) being mounted above the float (4) inside the valve body (1), a support ring (6) being mounted outside the filter screen (5), characterized in that: The support ring (6) is connected to elastic sleeves (7) on both left and right sides thereof, and a lever (8) is connected to the elastic sleeve (7) on both left and right sides thereof. A first connecting seat (9) is installed on the lower surface of the support ring (6). A first clamping block (10) is installed on the lower end of the first connecting seat (9) near the filter screen (5), and a connecting mechanism (11) is provided below the first connecting seat (9).

2. A float pilot steam trap according to claim 1, characterized in that: The connecting mechanism (11) comprises a second connecting seat (12), a connecting block (13) is installed at the upper end of the second connecting seat (12), and a baffle (14) is installed at the lower end of the second connecting seat (12), a pressing plate (15) is installed on the surface of the side of the second connecting seat (12) close to the filter screen (5), a connecting plate (16) is installed on the surface of the side of the pressing plate (15), and a second clamping block (17) is installed on the surface of the upper end of the connecting plate (16) away from the filter screen (5).

3. A float pilot steam trap according to claim 2, characterized in that: Two support sleeves (18) are symmetrically mounted on the upper surface of the filter screen (5), and a support rod (19) is movably connected inside the support sleeve (18).

4. A float pilot steam trap according to claim 1, characterized in that: The outer surface of the support ring (6) fits the left and right inner surfaces of the valve body (1).

5. A float pilot steam trap according to claim 2, characterized in that: The second connection seat (12) is mounted on a side surface away from the filter screen (5) on an inner side surface of the valve body (1), the connection block (13) is movably located inside the first connection seat (9), and the baffle (14) is located outside the pressure plate (15).

6. A float pilot steam trap according to claim 3, characterized in that: The upper end of the support rod (19) is mounted on the lower surface of the valve cover (2).

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